托福TPO阅读题目汇总

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托福TPO阅读真题全套【译文 解析】

托福TPO阅读真题全套【译文 解析】

智课网TOEFL备考资料托福TPO阅读真题全套【译文+解析】摘要:托福tpo阅读真题全套【译文+解析】下载,不少参加托福考试的牛人考前都会将托福tpo阅读真题全套内容看个2-3遍,真正吃透以里面的内容,你看了吗?托福 tpo阅读真题全套【译文+解析】全部是之前考试过得真题,它里面的题目的出题点和难度与真题非常接近,是我们参加托福考试的考生必不可少的精华材料,下面我们就来看一下有关托福tpo阅读真题的部分内容。

托福tpo阅读真题全套:TPO24Fossil PreservationWhen one considers the many ways by which organisms are completely destroyed after death, it is remarkable that fossils are as common as they are. Attack by scavengers and bacteria, chemical decay, and destruction by erosion and other geologic agencies make the odds against preservation very high. However, the chances of escaping complete destruction are vastly improved if the organism happens to have a mineralized skeleton and dies in a place where it can be quickly buried by sediment. Both of these conditions are often found on the ocean floors, where shelled invertebrates (organisms without spines) flourish and are covered by the continuous rain of sedimentary particles. Although most fossils are found in marine sedimentary rocks, they also are found in terrestrial deposits left by streams and lakes. On occasion, animals and plants have been preserved after becoming immersed in tar or quicksand, trappedin ice or lava flows, or engulfed by rapid falls of volcanic ash.The term "fossil" often implies petrifaction, literally a transformation into stone. After the death of an organism, the soft tissue is ordinarily consumed by scavengers and bacteria. The empty shell of a snail or clam may be left behind, and if it is sufficiently durable and resistant to dissolution, it may remain basically unchanged for a long period of time. Indeed, unaltered shells of marine invertebrates are known from deposits over 100 million years old. In many marine creatures, however, the skeleton is composed of a mineral variety of calcium carbonate called aragonite. Although aragonite has the same composition as the more familiar mineral known as calcite, it has a different crystal form, is relatively unstable, and in time changes to the more stable calcite.Many other processes may alter the shell of a clam or snail and enhance its chances for preservation. Water containing dissolved silica, calcium carbonate, or iron may circulate through the enclosing sediment and be deposited in cavities such as marrow cavities and canals in bone once occupied by blood vessels and nerves. In such cases, the original composition of the bone or shell remains, but the fossil is made harder and more durable. This addition of a chemically precipitated substance into pore spaces is termed "permineralization."Petrifaction may also involve a simultaneous exchange of the original substance of a dead plant or animal with mineral matter of a different composition. This process is termed " replacement" because solutions have dissolved the original material and replaced it with an equal volume of the new substance. Replacement can be a marvelously precise process, so that details of shell ornamentation, tree rings in wood, and delicate structures in bone are accurately preserved.Another type of fossilization, known as carbonization, occurs when soft tissues are preserved as thin films of carbon. Leaves and tissue of soft-bodied organisms such as jellyfish or worms may accumulate, become buried and compressed, and lose their volatile constituents. The carbon often remains behind as a blackened silhouette......以上就是有关托福tpo阅读真题的部分内容,今天我们就先介绍到这里,稍后我么陆续为大家介绍更多有关托福口语、听力、写作的TPO全套内容,敬请期待。

托福阅读理解真题汇总

托福阅读理解真题汇总

托福阅读理解真题汇总托福阅读真题1The term folk song has been current for over a hundred years, but there is still a good deal of disagreement as to what it actually means. The definition provided by the International Folk Music Council states that folk music is the music of ordinary people, which is passed on from person to person by being listened to rather than learned from the printed page. Other factors that help shape a folk song include: continuity (many performances over a number of years); variation (changes in words and melodies either through artistic interpretation or failure of memory); and selection (the acceptance of a song by the community in which it evolves).When songs have been subjected to these processes their origin is usually impossible to trace. For instance, if a farm laborer were to make up a song and sing it to a-couple of friends who like it and memorize it, possibly when the friends come to sing it themselves one of them might forget some of the words and make up new ones to fill the gap, while the other, perhaps more artistic, might add a few decorative touches to the tune and improve a couple of lines of text. If this happened a few times there would be many different versions, the song's original composer would be forgotten, and the song would become common property. This constant reshaping and re-creation is the essence of folk music. Consequently, modem popular songs and other published music, even though widely sung by people who are not professional musicians, are not considered folk music. The music and words have been set by a printed or recorded source, limiting scope for further artistic creation. These songs'origins cannot be disguised and therefore they belong primarily to the composer and not to a community.The ideal situation for the creation of folk music is an isolated rural community. In such a setting folk songs and dances have a special purpose at every stage in a person's life, from childhood to death. Epic tales of heroic deeds, seasonal songs relating to calendar events, and occupational songs are also likely to be sung.1. What does the passage mainly discuss?(A) Themes commonly found in folk music(B) Elements that define folk music(C) Influences of folk music on popular music(D) The standards of the International Folk Music Council2. Which of the following statements about the term folk song is supported by the passage ?(A) It has been used for several centuries.(B) The International Folk Music Council invented it.(C) It is considered to be out-of-date.(D) There is disagreement about its meaning.3. The word it in line 8 refers to(A) community(B) song(C) acceptance(D) memory4. Which of the following is NOT mentioned in the passage as a characteristic of the typical folksong?(A) It is constantly changing over time.(B) It is passed on to other people by being performed.(C) It contains complex musical structures.(D) It appeals to many people.5. The word subjected in line 9 is closest in meaning to(A) reduced(B) modified(C) exposed(D) imitated6. The author mentions the farm laborer and his friends (lines 10-14) in order to do which of thefollowing?(A) Explain how a folk song evolves over time(B) Illustrate the importance of music to rural workers(C) Show how subject matter is selected for a folk song(D) Demonstrate how a community, chooses a folk song7. According to the passage , why would the original composers of folk songs be forgotten?(A) Audiences prefer songs composed by professional musicians.(B) Singers dislike the decorative touches in folk song tunes.(C) Numerous variations of folk songs come to exist at the same time.(D) Folk songs are not considered an important form of music.8. The word essence in line 16 is closest in meaning to(A) basic nature(B) growing importance(C) full extent(D) first phase9. The author mentions that published music is not considered to be folk music because(A) the original composer can be easily identified(B) the songs attract only the young people in a community(C) the songs are generally performed by professional singers(D) the composers write the music in rural communitiesPASSAGE 56 BDBCC ACAA托福阅读真题2Often enough the craft worker's place of employment in ancient Greece was set in rural isolation. Potter, for instance, found it convenient to locate their workshops near their source of clay, regardless of its relation to the center of settlement. At Corinth and Athens, however, two of the best-known potters' quarters were situated on the cities' outskirts, and potters and makers of terra-cotta figurines were also established well within the city of Athens itself. The techniques of pottery manufacture had evolved well before the Greek period, but marked stylistic developments occurred in shape and in decoration, for example, in the interplay of black and other glazes with the red surface of the fired pot. Athenian black-figure and red-figure decoration, which emphasized human figures rather than animal images, was adopted between 630 and 530 B.C.; its distinctive color and luster were the result of the skillful adjustments of the kiln's temperature during an extended three-stage period if firing the clayware. Whether it was the potters or the vase-painters who initiated changes in firing is unclear, the functions of making and decorating were usually divided between them, but neither group can have been so specialized that they did not share in the concerns of the other.The broad utility of terra-cotta was such that workers in clay could generally afford to confine themselves to either decorated ware and housewares like cooking pots and storage jars orbuilding materials like roof tiles and drainpipes. Some sixth- and fifth-century B.C. Athenian pottery establishments are known to have concentrated on a limited range of fine ware, but a rural pottery establishment on the island of Thasos produced many types of pottery and roof tiles too, presumably to meet local demand. Molds were used to create particular effects for some products, such as relief-decorated vessels and figurines; for other products such as roof tiles, which were in some quantity, they were used to facilitate mass production. There were also a number of poor-quality figurines and painted pots produced in quantity by easy, inexpensive means — as numerous featureless statuettes and unattractive cases testify.1. The passage mainly discusses ancient Greek pottery and its(A) production techniques(B) similarity to other crafts(C) unusual materials(D) resemblance to earlier pottery2. The phrase regardless of in line 3 is closest in meaning to(A) as a result of(B) no matter what(C) proud of(D) according to3. It can be inferred from the passage that most pottery establishments in ancient Greece weresituated(A) in city centers(B) on the outskirts of cities(C) where clay could be found(D) near other potters' workshops4. The word marked in line 7 is closest in meaning to(A) original(B) attractive(C) noticeable(D) patterned5. The word confine in line 17 is closest in meaning to(A) adapt(B) train(C) restrict(D) organize6. It can be inferred from the passage that terra-cotta had which of the following advantages(A) It did not break during the firing process.(B) It was less expensive than other available materials.(C) Its surface had a lasting shine.(D) It could be used for many purposes.7. The word presumably in line 21 is closest in meaning to(A) frequently(B) practically(C) preferably(D) probably8. The word they in line 24 refers to(A) molds(B) particular effects(C) products(D) vessels and figurines9. According to the passage , all of the following are true of ancient Greek potters and vasepainters EXCEPT:(A) Their functions were so specialized that they lackedcommon concerns.(B) They sometimes produced inferior ware.(C) They produced pieces that had unusual color and shine.(D) They decorated many of their works with human images.PASSAGE 57 ABCCC DDAA托福阅读真题3Hunting is at best a precarious way of procuring food, even when the diet is supplemented with seeds and fruits. Not long after the last Ice Age, around 7,000 B.C. (during the Neolithic period), some hunters and gatherers began to rely chiefly on agriculture for their sustenance. Others continued the old pastoral and nomadic ways. Indeed, agriculture itself evolved over the course of time, and Neolithic peoples had long known how to grow crops. The real transformation of human life occurred when huge numbers of people began to rely primarily and permanently on the grain they grew and the animals they domesticated.Agriculture made possible a more stable and secure life. With it Neolithic peoples flourished, fashioning an energetic, creative era. They were responsible for many fundamental inventions and innovations that the modern world takes for granted. First, obviously, is systematic agriculture —that is, the reliance of Neolithic peoples on agriculture as their primary, not merely subsidiary, source of food.Thus they developed the primary economic activity of the entire ancient world and the basis of all modern life. With the settled routine of Neolithic farmers came the evolution of towns and eventually cities. Neolithic farmers usually raised more food than they could consume, and their surpluses permitted larger, healthier populations. Population growth in turn created an evengreater reliance on settled farming, as only systematic agriculture could sustain the increased numbers of people. Since surpluses of food could also be bartered for other commodities, the Neolithic era witnessed the beginnings of large-scale exchange of goods. In time the increasing complexity of Neolithic societies led to the development of writing, prompted by the need to keep records and later by the urge to chronicle experiences, learning, and beliefs.The transition to settled life also had a profound impact on the family. The shared needs and pressures that encourage extended-family ties are less prominent in settled than in nomadic societies. Bonds to the extended family weakened. In towns and cities, the nuclear family was more dependent on its immediate neighbors than on kinfolk.1. What does the passage mainly discuss?(A) Why many human societies are dependent on agriculture(B) the changes agriculture brought to human life(C) How Neolithic peoples discovered agriculture(D) Why the first agricultural societies failed2. The word precarious in line 1 is closest in meaning to(A) uncertain(B) humble(C) worthy(D) unusual3. The author mentions seeds and fruits in line 2 as examples of(A) the first crops cultivated by early agricultural societies(B) foods eaten by hunters and gatherers as a secondary food source(C) types of food that hunters and gatherers lacked in theirdiets(D) the most common foods cultivated by early agricultural societies4. The word settled in line 15 is closest in meaning to(A) advanced(B) original(C) involved(D) stable5. According to the passage , agricultural societies produced larger human populations becauseagriculture(A) created more varieties of food(B) created food surpluses(C) resulted in increases in leisure time(D) encouraged bartering6. According to the passage , all of the following led to the development of writing EXCEPT the(A) need to keep records(B) desire to write down beliefs(C) extraction of ink from plants(D) growth of social complexity7. The word chronicle in line 23 is closest in meaning to(A) repeat(B) exchange(C) understand(D) describe8. According to the passage , how did the shift to agricultural societies impact people's familyrelationships?(A) The extended family became less important.(B) Immediate neighbors often became family members.(C) The nuclear family became self-sufficient.(D) Family members began to wok together to raise food.9. The author mentions all of the following as results of the shift to agricultural societies EXCEPT(A) an increase in invention and innovation(B) emergence of towns and cities(C) development of a system of trade(D) a decrease in warfare10. Which of the following is true about the human diet prior to the Neolithic period?(A) It consisted mainly of agricultural products(B) It varied according to family size.(C) It was based on hunting and gathering.(D) It was transformed when large numbers of people no longer depended on the grain they grewthemselves.PASSAGE 58 BABDB CDADC。

托福备考托福阅读34套TPO样题+解析+译文14--2 Maya Water Problems

托福备考托福阅读34套TPO样题+解析+译文14--2 Maya Water Problems

托福考试 复习托福阅读TPO14(试题+答案+译文)第2篇:Maya Water Problems托福阅读原文【1】To understand the ancientMayan people who lived in the area that is today southern Mexico and CentralAmerica and the ecological difficulties they faced, one must first considertheir environment, which we think of as "jungle" or "tropicalrainforest." This view is inaccurate, and the reason proves to beimportant. Properly speaking, tropical rainforests grow in high-rainfall equatorialareas that remain wet or humid all year round. But the Maya homeland lies morethan sixteen hundred kilometers from the equator, at latitudes 17 to 22 degreesnorth, in a habitat termed a "seasonal tropical forest." That is,while there does tend to be a rainy season from May to October, there is also adry season from January through April. If one focuses on the wet months, onecalls the Maya homeland a "seasonal tropical forest"; if one focuseson the dry months, one could instead describe it as a "seasonaldesert".【2】From north to south in theYucatan Peninsula, where the Maya lived, rainfall ranges from 18 to 100 inches(457 to 2,540 millimeters) per year, and the soils become thicker, so that thesouthern peninsula wasagriculturally more productive and supported denserpopulations. But rainfall in the Maya homeland is unpredictably variablebetween years; some recent years have had three or four times more rain thanother years. As a result, modern farmers attempting to grow corn in the ancientMaya homelands have faced frequent crop failures, especially in the north. Theancient Maya were presumably more experienced and did better, but neverthelessthey too must have faced risks of crop failures from droughts and hurricanes.【3】Although southern Maya areasreceived more rainfall than northern areas, problems of water wereparadoxically more severe in the wet south. While that made things hard forancient Maya living in the south, it has also made things hard for modernarchaeologists who have difficulty understanding why ancient droughts causedbigger problems in the wet south than in the dry north. The likely explanationis that an area of underground freshwater underlies the Yucatan Peninsula, butsurface elevation increases from north to south, so that as one moves south theland surface lies increasingly higher above the water table. In the northernpeninsula the elevation is sufficiently low that the ancient Maya were able toreach the water table at deep sinkholes called cenotes, or at deep caves. Inlow-elevation north coastal areas without sinkholes, the Maya would have beenable to get down to the water table by diggingwells up to 75 feet (22 meters)deep. But much of the south lies too high above the water table for cenotes orwells to reach down to it. Making matters worse, most of the Yucatan Peninsulaconsists of karst, a porous sponge-like limestone terrain where rain runsstraight into the ground and where little or no surface water remainsavailable.【4】How did those dense southernMaya populations deal with the resulting water problem? It initially surprisesus that many of their cities were not built next to the rivers but instead onhigh terrain in rolling uplands. The explanation is that the Maya excavateddepressions, or modified natural depressions, and then plugged up leaks in thekarst by plastering the bottoms of the depressions in order to createreservoirs, which collected rain from large plastered catchment basins andstored it for use in the dry season. For example, reservoirs at the Maya cityof Tikal held enough water to meet the drinking water needs of about 10,000people for a period of 18 months. At the city of Coba the Maya built dikesaround a lake in order to raise its level and make their water supply morereliable. But the inhabitants of Tikal and other cities dependent on reservoirsfor drinking water would still have been in deep trouble if 18 months passedwithout rain in a prolonged drought. A shorter drought in which they exhaustedtheir stored food supplies might already have gotten them in deep trouble,because growing cropsrequired rain rather than reservoirs.托福阅读试题1.Why does the author call the Mayan homeland both a “seasonal tropical forest” and “seasonal desert”(Paragraph 1)?A.To illustrate how the climate of the Mayan homeland varied from region to region.B.To explain how the climate of the Mayan homeland is similar to that of a jungle or tropical rainforest.C.To emphasize the vast size of the area that comprised the Mayan homeland in ancient times.D.To make the point that the Mayan homeland is climatically more complex than is generally assumed.2.Which of the following is NOT mentioned in paragraph 2 as a difference between the northern and southern Yucatan Peninsula?A.The annual rainfall was greater in the south.B.The population density was lower in the north.C.Agricultural productivity was greater in the south.D.Rainfall was more unpredictable and variable in the south.3.Which of the following statements about ancient and modem agriculture in the Yucatan Peninsula is supported by paragraph 2?A.Modern agricultural methods have solved many of the ancient problems of farming in the Yucatan Peninsula.B.Ancient Mayan farmers may have been somewhat more successful at farming in the Yucatan Peninsula than farmers are today.C.Farming today is easier than in the past because environmental changes in the Yucatan Peninsula have increased available rainfall.D.The Yucatan soils in which ancient farmers worked were richer, more productive, and thicker than they are today.4.The wo rd “paradoxically”(Paragraph 3)in the passage is closest in meaning toually.B.surprisingly.C.understandably.D.predictably.5.The phrase “The likely explanation”(Paragraph 3)in the passage refers to the explanation for whyA. the southern Maya areas received more rainfall than the northern areas.B. modern archaeologists have difficulty understanding ancient droughts.C. water problems were most severe in the wet south.nd surface in the south is so high above the water table.6.Which of the following statements about the availability of water in the Mayan homeland is supported by paragraph 3?A.The construction of wells was an uncommon practice in both the north and the south because it was too difficult to dig through the karst.B.In most areas in the north and the south, rainwater was absorbed directly into the porous karst.C.The water table was an important resource for agriculture in both the north and the south of the Yucatan Peninsula.D.The lack of surface water in both the north and the south was probably due to the fact that most of it was quickly used up for agricultural purposes.7.According to paragraph 3, why was the southern Mayan homeland hard to farm?A.The presence of numerous sinkholes and wells interfered with farming.B.Southern soil lacked the depth crops needed for growth.C.Underground water was too far below the surface to reach.D.The presence of karst caused frequent flooding.8.Which of the sentences below best expresses the essential information in the highlighted sentence(paragraph 4) in the passage? Incorrect choices change the meaning in important ways or leave out essential information.A.Southern Maya populations obtained the water they needed for the dry season by collecting and storing rainwater in sealed depressions.B.The Maya are credited with creating methods for modifying naturalrainwater and storing it.C.Leaks in the karst caused difficulties in the creation of reservoirs, which were needed to store water for the dry season.D.Southern Mayans were more successful at collecting rain than storing it during dry seasons.9.What can be inferred from paragraph 4 about how residents of Tikal met their needs for water and food during most periods of drought? A.They depended upon water and food that had been stored for use during the dry season.B.They obtained drinking water and water for crop irrigation from Coba dikes.C.They located their population centers near a lake where water was available for drinking and watering crops.D.They moved locations every 18 months to find new croplands and water sources.10.The word "prolonged" in the passage(paragraph 4)is closest in meaning toA.unusual.B.unexpected.C.extended.D.disastrous.11.The word "exhausted" in the passage(paragraph 4)is closest inmeaning toed up.B.reduced.C.wasted.D.relied upon.12. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence best fit? The difference between the two climates challenged the Maya who had to deal with both.To understand the ancient Mayan people who lived in the area that is today southern Mexico and Central America and the ecological difficulties they faced, one must first consider their environment, which we think of as "jungle" or "tropical rainforest." ■【A】This view is inaccurate, and the reason proves to be important. ■【B】Properly speaking, tropical rainforests grow in high-rainfall equatorial areas that remain wet or humid all year round. But the Maya homeland lies more than sixteen hundred kilometers from the equator, at latitudes 17 to 22 degrees north, in a habitat termed a "seasonal tropical forest." ■【C】That is, while there does tend to be a rainy season from May to October, there is also a dry season from January through April. If one focuses on the wet months, one calls the Maya homeland a "seasonal tropical forest"; if one focuses on the dry months, one could instead describe it as a "seasonal desert."■【D】13.Directions: Select from the seven phrases below the phrases that correctly characterize the southern Mayan homeland and the phrases that correctly characterize the northern Mayan homeland. Drag each phrase you select into the appropriate column of the table. Two of the phrases will NOT be used. This question is worth 3 points.A. City of Tikal.B. Predictable rainfall.C. High above water table.D. Used reservoirs.E. Obtained water from wells.F.Dramatically improved corn crops.G. Had comparatively thin layer of soil.1 )Southern Mayan homelandA B C D E F G2 )Northern Mayan homelandA B C D E F G托福阅读答案1.修辞目的题,修辞点所在的句子只是单纯在说一个例子,所以往前看,前句说有雨季也有旱季,所以对应的是答案D,MAYA地区的气候复杂多变。

托福备考托福阅读34套TPO样题+解析+译文1-3Timberline Vegetation on Mountains

托福备考托福阅读34套TPO样题+解析+译文1-3Timberline Vegetation on Mountains

托福考试 复习托福阅读TPO1(试题+答案+译文)第3篇:Timberline Vegetation on Mountains托福阅读原文The transition from forest to treeless tundraon a mountain slope is often a dramatic one. Within a vertical distance of just a few tens of meters, trees disappear as a life-form and are replaced by low shrubs, herbs, and grasses. This rapid zone of transition is called the upper timberline or tree line. In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.The upper timberline, like the snow line, is highest in the tropics and lowest in the Polar Regions. It ranges from sea level in the Polar Regions to 4,500 meters in the dry subtropics and 3,500-4,500 meters in the moist tropics. Timberline trees are normally evergreens, suggesting that these have some advantage over deciduous trees (those that lose their leaves) in the extreme environments of the upper timberline. There are some areas, however, where broadleaf deciduous trees form the timberline. Species of birch, for example, may occur at the timberline in parts of the Himalayas.At the upper timberline the trees begin to become twisted and deformed. This is particularly true for trees in the middle and upper latitudes, which tend to attain greater heights on ridges, whereas in the tropics the trees reach their greater heights in the valleys. This is because middle- and upper- latitude timberlines are strongly influenced by the duration and depth of the snow cover. As the snow is deeper and lasts longer in the valleys, trees tend to attain greater heights on the ridges, even though they are more exposed to high-velocity winds and poor, thin soils there. In the tropics, the valleys appear to be more favorable because they are less prone to dry out, they have less frost, and they have deeper soils. There is still no universally agreed-on explanation for why there should be such a dramatic cessation of tree growth at the upper timberline. Various environmental factors may play a role. Too much snow, for example, can smother trees, and avalanches and snow creep can damage or destroy them. Late-lying snow reduces the effective growing season to the point where seedlings cannot establish themselves. Wind velocity also increases with altitude and may cause serious stress for trees, as is made evident by the deformed shapes at high altitudes. Some scientists have proposed that the presence of increasing levels of ultraviolet light with elevation may play a role, while browsing and grazing animals like the ibex may be another contributing factor. Probably the most importantenvironmental factor is temperature, for if the growing season is too short and temperatures are too low, tree shoots and buds cannot mature sufficiently to survive the winter months.Above the tree line there is a zone that is generally called alpine tundra. Immediately adjacent to the timberline, the tundra consists of a fairly complete cover of low-lying shrubs, herbs, and grasses, while higher up the number and diversity of species decrease until there is much bare ground with occasional mosses and lichens and some prostrate cushion plants. Some plants can even survive in favorable microhabitats above the snow line. The highest plants in the world occur at around 6,100 meters on Makalu in the Himalayas. At this great height, rocks, warmed by the sun, melt small snowdrifts.The most striking characteristic of the plants of the alpine zone is their low growth form. This enables them to avoid the worst rigors of high winds and permits them to make use of the higher temperatures immediately adjacent to the ground surface. In an area where low temperatures are limiting to life, the importance of the additional heat near the surface is crucial. The low growth form can also permit the plants to take advantage of the insulation provided by a winter snow cover. In the equatorial mountains the low growth form is less prevalent.托福阅读试题1.The word “dramatic” in the passage(paragraph 1) is closest in meaning toA.gradualplexC.visibleD.striking2.Where is the lower timberline mentionedin paragraph 1 likely to be found?A.In an area that has little waterB.In an area that has little sunlightC.Above a transition areaD.On a mountain that has on uppertimberline.3.Which of the following can be inferredfrom paragraph 1 about both the upper and lower timberlines?A.Both are treeless zones.B.Both mark forest boundaries.C.Both are surrounded by desert areas.D.Both suffer from a lack of moisture.4.Paragraph 2 supports which of thefollowing statements about deciduous trees?A.They cannot grow in cold climates.B.They cannot grow in cold climates.C.They are less likely than evergreens tosurvive at the upper timberline.D.They do not require as much moisture asevergreens do.5.The word “attain” in the passage(paragraph 3) is closest in meaning toA. requireB.resistC.achieveD.endure6.The word “they” in the passage (paragraph3) refers toA.valleysB.treesC.heightsD.ridges7.The word “prone” in the passage (paragraph3) is closest in meaning toA.adaptedB.likelyC.difficultD.resistant8.According to paragraph 3, which of thefollowing is true of trees in the middle and upper latitudes?A.Tree growth is negatively affected by thesnow cover in valleysB.Tree growth is greater in valleys than onridges.C.Tree growth on ridges is not affected byhigh-velocity winds.D.Tree growth lasts longer in thoselatitudes than it does in the tropics.9.Which of the sentences below best expressthe essential information in the highlighted sentence in the passage (paragraph4) ? In correct choices change the meaning in important ways or leave outessential information.A.Because of their deformed shapes at highaltitudes, trees are not likely to be seriously harmedby the strong winds typical of thosealtitudes.B.As altitude increases, the velocity ofwinds increase, leading to a serious decrease in the number of trees found athigh altitudes.C.The deformed shapes of trees at highaltitudes show that wind velocity, which increase with altitude, can causeserious hardship for trees.D.Increased wind velocity at high altitudesdeforms the shapes of trees, and this may cause serious stress for trees.10.In para graph 4, what is the author’smain purpose in the discussion of the dramatic cessation of tree growth at theupper timberline?A.To argue that none of several environmentfactors that are believed to contribute to that phenomenon do in fact play arole in causing itB.To argue in support of one particularexplanation of that phenomenon against several competing explanationsC.To explain why the primary environmentalfactor responsible for that phenomenon has not yet been identifiedD.To present several environmental factorsthat may contribute to a satisfactory explanation of that phenomenon11.The word “prevalent” in the passage(paragraph 6) is closest in meaning toA.predictableB.widespreadC.successfulD.developed12.According to paragraph 6, all of thefollowing statements are true of plants in the alpine zone EXCEPT:A.Because they are low, they are lessexposed to strong winds.B.Because they are low, the winter snowcover gives them more protection from the extreme cold.C.In the equatorial mountains, they tend tobe lower than in mountains elsewhere.D.Their low growth form keeps them closerto the ground, where there is more heat than further up.13.Look at the four squares [█] thatindicate where the following sentence could be added to the passage.This explains how, for example, alpine cushionplants have been found growing at an altitude of 6,180 meters.Above the tree line there is a zone that isgenerally called alpine tundra.█【A】Immediately adjacent to the timberline, the tundra consists ofa fairly complete cover of low-lying shrubs, herbs, and grasses, while higherup the number and diversity of species decrease until there is much bare groundwith occasional mosses and lichens and some prostrate cushion plants. █【B】Some plantscan even survive in favorable microhabitats above the snow line. The highestplants in the world occur at around 6,100meters on Makalu in the Himalayas. █【C】At thisgreat height, rocks, warmed by the sun, melt small snowdrifts.█【D】Where would the sentence best fit?14. Directions: An introductory sentencefor a brief summary of the passage is provided below. Complete the summary byselecting the THREE answer choices that express the most important ideas in thepassage. Some sentences do not belong in the summary because they express ideasthat are not presented in the passage or are minor ideas in the passage. Thisquestion is worth 2 points.At the timberline, whether upper or lower,there is a profound change in the growth of trees and other plants.A.Birch is one of the few species of treethat can survive in the extremeenvironments of the upper timberline.B.There is no agreement among scientists asto exactly why plant growth is sharply different above and below the uppertimberline.C.The temperature at the upper timberlineis probably more important in preventing tree growth than factors such as theamount of snowfall or the force of winds.D.The geographical location of an uppertimberline has an impact on both the types of trees found there and theirphysical characteristics.E.High levels of ultraviolet light mostlikely play a greater role in determining tree growth at the upper timberlinethan do grazing animals such as the ibex.F.Despite being adjacent to the timberline,the alpine tundra is an area where certain kinds of low trees can endure highwinds and very low temperatures.托福阅读答案1.dramatic剧烈的,戏剧化的,就单词本身能够想到drama戏剧,所以这个应该是戏剧的形容词,原文后句说在几十米的垂直距离内,树木完全被低矮的灌木和草取代了,所以变化非常剧烈,A渐渐B复杂C可见的都不靠谱2.以lower timberline做关键词定位至本段最后一句,说有lower timberline 是因为a lack of moisture,缺乏湿度,等于A选项中的没有水3.分别以upper timberline和lower timberline为关键词定位至本段倒数两句,不管是upper timberline还是lower timberline都是快速的过渡带,树还是有的,只是在向草原等等过渡,所以A错,既然是过渡,也就是边界了,B对,C没说,只有lower timberline缺水,所以D说both错4.以deciduous trees做关键词定位至原文的第三句和第四句,根据第四句说有的地方的timberline是由落叶树构成的,所以timberline上还是有落叶树的,所以选项A和B说反,D项moisture原文没说,第三句说timberline通常是常绿树构成的,第四句说有的时候也出现落叶树,所以常绿树比落叶树出现的概率大,所以C正确5.attain获得,想到相似的obtain和retain,原文说中高纬度的树木会变形,在山脊处怎么样更高,后半句的whereas所在句与之并列,其中reach greater heights应该和考的那部分是并列的,所以attain也是reach之意,答案是achieve,A要求B反对抵抗D忍耐都不对6.并列句,往前找,找主语,trees是正确答案,此外,被暴露在大风之下的应该是树,山谷山脊和高度都不靠谱7.prone可能,倾向于。

托福备考托福阅读34套TPO样题+解析+译文18--1 Industrialization in the Netherlands and Scandinavia

托福备考托福阅读34套TPO样题+解析+译文18--1 Industrialization in the Netherlands and Scandinavia

托福考试 复习托福阅读TPO18(试题+答案+译文)第1篇:Industrialization in the Netherlands and Scandinavia托福阅读原文While some European countries, such as England and Germany, began to industrialize in the eighteenth century, the Netherlands and the Scandinavian countries of Denmark, Norway, and Sweden developed later. All four of these countries lagged considerably behind in the early nineteenth century. However, they industrialized rapidly in the second half of the century, especially in the last two or three decades. In view of their later start and their lack of coal—undoubtedly the main reason they were not among the early industrializers—it is important to understand the sources of their success.All had small populations. At the beginning of the nineteenth century, Denmark and Norway had fewer than 1 million people, while Sweden and the Netherlands had fewer than 2.5 million inhabitants. All exhibited moderate growth rates in the course of the century (Denmark the highest and Sweden the lowest), but all more than doubled in population by 1900. Density varied greatly. The Netherlands had one of the highest population densities in Europe, whereas Norway and Sweden had the lowest Denmark was in between but closer to the Netherlands.Considering human capital as a characteristic of the population, however, all four countries were advantaged by the large percentages of their populations who could read and write. In both 1850 and 1914, the Scandinavian countries had the highest literacy rates in Europe, or in the world, and the Netherlands was well above the European average. This fact was of enormous value in helping the national economies find their niches in the evolving currents of the international economy.Location was an important factor for all four countries. All had immediate access to the sea, and this had important implications for a significant international resource, fish, as well as for cheap transport, merchant marines, and the shipbuilding industry. Each took advantage of these opportunities in its own way. The people of the Netherlands, with a long tradition of fisheries and mercantile shipping, had difficulty in developing good harbors suitable for steamships: eventually they did so at Rotterdam and Amsterdam, with exceptional results for transit trade with Germany and central Europe and for the processing of overseas foodstuffs and raw materials (sugar, tobacco, chocolate, grain, and eventually oil). Denmark also had an admirable commercial history, particularly with respect to traffic through the Sound (the strait separating Denmark and Sweden). In 1857, in return for a payment of 63 million kronor from other commercial nations, Denmark abolished the Sound toll dues the fees it had collected since 1497 for the use of theSound. This, along with other policy shifts toward free trade, resulted in a significant increase in traffic through the Sound and in the port of Copenhagen.The political institutions of the four countries posed no significant barriers to industrialization or economic growth. The nineteenth century passed relatively peacefully for these countries, with progressive democratization taking place in all of them. They were reasonably well governed, without notable corruption or grandiose state projects, although in all of them the government gave some aid to railways, and in Sweden the state built the main lines. As small countries dependent on foreign markets, they followed a liberal trade policy in the main, though a protectionist movement developed in Sweden. In Denmark and Sweden agricultural reforms took place gradually from the late eighteenth century through the first half of the nineteenth, resulting in a new class of peasant landowners with a definite market orientation.The key factor in the success of these countries (along with high literacy, which contributed to it) was their ability to adapt to the international division of labor determined by the early industrializers and to stake out areas of specialization in international markets for which they were especially well suited. This meant a great dependence on international commerce, which had notorious fluctuations; but it also meant high returns to those factors of production that were fortunate enough to bewell placed in times of prosperity. In Sweden exports accounted for 18 percent of the national income in 1870, and in 1913, 22 percent of a much larger national income. In the early twentieth century, Denmark exported 63 percent of its agricultural production: butter, pork products, and eggs. It exported 80 percent of its butter, almost all to Great Britain, where it accounted for 40 percent of British butter imports.托福阅读试题1.Paragraph 1 supports which of the following ideas about England and Germany?A.They were completely industrialized by the start of the nineteenth century.B.They possessed plentiful supplies of coal.C.They were overtaken economically by the Netherlands and Scandinavia during the early nineteenth century.D.They succeeded for the same reasons that the Netherlands and Scandinavia did.2.Paragraph 2 suggests which of the following about the importance of population density in the industrialization of the Netherlands and Scandinavia?A.It was a more important factor than population size.B.It was more influential than the rate of population growth.C.It was more important in the early stages than it was later.D.It was not a significant factor.3.According to paragraphs 2 and 3, which of the following contributed significantly to the successful economic development of the Netherlands and of Scandinavia?A.The relatively small size of their populationsB.The rapid rate at which their populations were growingC.The large amount of capital they had available for investmentD.The high proportion of their citizens who were educated4.According to paragraph 4, because of their location, the Netherlands and the Scandinavian countries had all of the following advantages when they began to industrialize EXCEPTA.low-cost transportation of goodsB.access to fishC.shipbuilding industriesitary control of the sea5.The word “exceptional” in passage 4 is closest in meaning toA.extraordinaryB.surprisingC.immediateD.predictable6.The word “abolished” in passage 4 is closest in meaning toA.endedB.raisedC.returnedD.lowered7.According to paragraph 5, each of the following contributed positively to the industrialization of the Netherlands and Scandinavia EXCEPTA.generally liberal trade policiesB.huge projects undertaken by the stateC.relatively uncorrupt governmentsD.relatively little social or political disruption8.The word “progressive” in passage 5 is closest in meaning toA.rapidB.partialC.increasingD.individual9.The author includes the information that “a protectionist movement developed in Sweden”(in paragraph 5) in order toA.support the claim that the political institutions of the four countries posed no significant barriers to industrialization or economic growthB.identify an exception to the general trend favoring liberal trade policyC.explain why Sweden industrialized less quickly than the otherScandinavian countries and NetherlandsD.provide evidence that agricultural reforms take place more quickly in countries that have a liberal trade policy than in those that do not10.Which of the sentences below best expresses the essential information in the highlighted sentence in passage 6? Incorrect choices change the meaning in important ways or leave out essential information.A.The early industrializes controlled most of the international economy, leaving these countries to stake out new areas of specialization along the margins.B.Aided by their high literacy rates these countries were able to claim key areas of specialization within established international markets.C.High literacy rates enabled these countries to take over international markets and adapt the international division of labor to suit their strengths.D.The international division of labor established by the early industrializers was suited to these countries, a key factor in their success.11.According to paragraph 6, a major problem with depending heavily on international markets was that theycked stabilityB.were not well suited to agricultural productsC.were largely controlled by the early industrializersD.led to slower growth of local industries12.According to paragraph 6, what advantage could a country gain from being heavily involved in international commerce?A.A steadily rising national incomeB.Greater control over market fluctuationsC.High returns when things went wellD.A reduced need for imports13. Look at the four squares [■] that indicate where the following sentence be added to passage. Where would the sentence best fit? During this period, Sweden had the highest rate of growth of output per capita of any country in Europe, and Denmark was secondWhile some European countries, such as England and Germany, began to industrialize in the eighteenth century, the Netherlands and the Scandinavian countries of Denmark, Norway, and Sweden developed later. ■【A】All four of these countries lagged considerably behind in the early nineteenth century. ■【B】However, they industrialized rapidly in the second half of the century, especially in the last two or three decades. ■【C】In view of their later start and their lack of coal—undoubtedly the main reason they were not among the early industrializers—it is important to understand the sources of their success. ■【D】14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THERR answer choices that express the most important ideas in thepassage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.Although the Netherlands and Scandinavia began to industrialize relatively late, they did so very successfullyA.Although these countries all started with small, uneducated populations, industrialization led to significant population growth and higher literacy rates.B.Thanks to their ready access to the sea, these countries enjoyed advantages in mercantile shipping, fishing, and shipbuilding.C.Because they all started with good harbors for steamships, these countries started with an important advantage in the competition for transit trade.D.These countries were helped by the fact that their governments were relatively stable and honest and generally supported liberal trade policies.E.These countries were successful primarily because their high literacy rates helped them fill specialized market niches.F.Because they were never fully dependent on international commerce, these countries were able to survive notorious fluctuations in international markets.托福阅读答案1.注意这道题没有明显关键词,England和Germany是不能用的,因为跟主题相关,所以用排除法。

TOEFL托福阅读真题整合

TOEFL托福阅读真题整合

TOEFL托福阅读真题整合托福阅读真题1__ 31Rent control is the system whereby the local government tells building owners how much they can charge their tenants in rent. In the United States, rent controls date back to at least World War II.In 1943 the federal government imposed rent controls to help solve the problem of housing shortages during wartime. The federal program ended after the war, but in some locations, including New York City, controls continued. Under New York's controls, a landlord generally cannot raise rents on apartments as long as the tenants continue to renew their leases. In places such as Santa Monica, California, rent controls are more recent. They were spurred by the inflation of the 1970's, which, combined with California's rapid population growth, pushed housing prices, as well as rents, to record levels. In 1979 Santa Monica's municipal government ordered landlords to roll back their rents to the levels charged in 1978. Future rents could only go up by two-thirds as much as any increase in the overall price level.In any housing market, rental prices perform three functions: (1) promoting the efficient maintenance of existing housing and stimulating the construction of new housing, (2) allocating existing scarce housing among competing claimants, and (3) rationing use of existing housing by potential renters.One result of rent control is a decrease in the construction of new rental units. Rent controls have artificially depressed the most important long-term determinant of profitability —rents. Consider some examples. In a recent year in Dallas, Texas, with a 16 percent rental vacancy rate but no rent control laws, 11,000 new housing units were built. In the same year, in San Francisco, California, only 2,000 units were built. The major difference? San Francisco has only a 1.6 percent vacancy rate but stringent rent control laws. In New York City, except for government-subsidized construction, the only rental units being built are luxury units, which are exempt from controls. In Santa Monica, California, new apartments are not being constructed. New office rental space and commercial developments are, however. They are exempt from rent controls.1. What does the passage mainly discuss?(A) The construction of apartments in the United States.(B) Causes and effects of rent control(C) The fluctuations of rental prices(D) The shortage of affordable housing in the United States.2. The word They in line 9 refers to(A) the tenants(B) their leases(C) places(D) rent controls.3. Which of the following was NOT a reason for the introduction of rent controls in Santa Monica,California?(A) rapid population growth(B) inflation(C) economic conditions during wartime(D) record-high housing prices4. The phrase roll back in line 11 is closest in meaning to(A) credit(B) measure(C) vary(D) reduce5. The word stimulating in line 15 is closest in meaning to(A) experimenting with(B) identifying(C) estimating(D) encouraging6. It can be inferred that the purpose of rent control is to(A) protect tenants(B) promote construction(C) increase vacancy rates(D) decrease sales of rental units7. The word depressed in line 19 is closest in meaning to(A) saddened(B) created(C) lowered(D) defeated8. The information in the last paragraph supports which of the following statements?(A) San Francisco has eliminated its rent control laws.(B) Rent control leads to a reduction in the construction of housing units(C) Luxury apartments are rarely built when there is rent control(D) There is a growing need for government-subsidized housing.9. According to the passage , which of the following cities does NOT currently have rent controls?(A) Santa Monica(B) Dallas(C) San Francisco(D) New York City10. The word stringent in line 23 is closest in meaning to(A) straightforward(B) strict(C) expanded(D) efficient11. According to the passage , which of the following is NOT exempt from rent control?(A) Luxury apartments(B) Commercial development(C) Moderately priced apartments(D) Office space.__ 31 BDCDD ACBBB C托福阅读真题232By 1776 the fine art of painting as it had developed in western Europe up to this time had been introduced into the American colonies through books and prints, European visitors andimmigrants, and traveling colonists who brought back copies (and a few original) of old master paintings and acquaintance with European art institutions.By the outbreak of the Revolution against British rule in 1776, the status of the artists had already undergone change. In the mid-eighteenth century, painters had been willing to assume such artisan-related tasks as varnishing, gilding teaching, keeping shops, and painting wheel carriages, houses, and signs. The terminology by which artists were described at the time suggests their status: limner was usually applied to the anonymous portrait painter up to the 1760's; painter characterized anyone who could paint a flat surface. By the second half of the century, colonial artists who were trained in England or educated in the classics rejected the status of laborer and thought of themselves as artists. Some colonial urban portraitists, such as John Singleton Copley, Benjamin West, and Charles Wilson Peale, consorted with affluent patrons. Although subject to fluctuations in their economic status, all three enjoyed sufficient patronage to allow them to maintain an image of themselves as professional artists, an image indicated by their custom of signing their paintings. A few art collectors James Bowdoin III of Boston, William Byrd of Virginian, and the Aliens andHamiltons of Philadelphia introduced European art traditions to those colonists privileged to visit their galleries, especially aspiring artists, and established in their respective communities the idea of the value of art and the need for institutions devoted to its encouragement.Although the colonists tended to favor portraits, they also accepted landscapes, historical works, and political engravings as appropriate artistic subjects. With the coming of independence from the British Crown, a sufficient number of artists and their works were available to serve nationalistic purposes. The achievements of the colonial artists, particularly those of Copley, West, and Peale, lent credence to the boast that the new nation was capable of encouraging genius and that political liberty was congenial to the development of taste — a necessary step before art could assume an important role in the new republic.1. What does the passage mainly discuss?(A) European influence on colonial American painting(B) The importance of patronage to artist(C) The changing status of artists in the American colonies in the eighteenth century(D) Subjects preferred by artists in the American colonies in theeighteenth century.2. The word outbreak in line 5 is closest in meaning to(A) cause(B) beginning(C) position(D) explanation3. The word undergone in line 6 is closest in meaning to(A) led to(B) transformed(C) preferred(D) experienced4. According to the passage , before the American Revolution the main task of limners was to(A) paint wheel carriages(B) paint portraits(C) varnish furniture(D) paint flat surfaces5. I t can be inferred from the passage that artists who were trained in England(A) considered artists to be superior to painters(B) barely painted portraitists(C) were often very wealthy(D) imitated English painters6. The word consorted in line 14 is closest in meaning to(A) made decisions(B) studies(C) agreed(D) associated7. The word sufficient in line 16 is closest in meaning to(A) adequate(B) temporary(C) friendly(D) expensive8. According to the passage , artists such as Copley, West and Peal signed their paintings(A) increased the monetary value of the paintings(B) made it more difficult for other artists to copy the paintings(C) supported the artists' image of professionalism(D) distinguished colonial American artists from European artists9. The author mentions James Bowdoin III and William Byrd in line 17 as examples of which ofthe following?(A) Art gallery owners who displayed only European art(B) Art collectors who had a profound influence on American attitudes toward art(C) Artists who gave financial support to other artists(D) Patrons whose helped to encourage artisans to become artists10. With which of the following would the author be most likely to agree?(A) Countries that have not had a political revolution are unlikely to develop great art.(B) The most successful art collectors are usually artists themselves.(C) The value of colonial American paintings decreased after the Revolution.(D) Colonial artists made an important contribution to the evolving culture of the new nation.__ 32 CBDBA DACBD托福阅读真题3__ 33Researchers in the field of psychology have found that one of the best ways to make an important decision, such as choosing auniversity to attend or a business to invest in, involves the utilization of a decision worksheet. Psychologists who study optimization compare the actual decisions made by people to theoretical ideal decisions to see how similar they are. Proponents of the worksheet procedure believe that it will yield optimal, that is, the best decisions. Although there are several variations on the exact format that worksheets can take, they are all similar in their essential aspects. Worksheets require defining the problem in a clear and concise way and then listing all possible solutions to the problem. Next, the pertinent considerations that will be affected by each decision are listed, and the relative importance of each consideration or consequence is determined. Each consideration is assigned a numerical value to reflect its relative importance. A decision is mathematically calculated by adding these values together. The alternative with the highest number of points emerges as the best decision.Since most important problems are multifaceted, there are several alternatives to choose from, each with unique advantages and disadvantages. One of the benefits of a pencil and paper decision-making procedure is that it permits people to deal with more variables than their minds can generally comprehend and remember.On the average, people can keep about seven ideas in their minds at once. A worksheet can be especially useful when the decision involves a large number of variables with complex relationships. A realistic example for many college students is the question What will I do after graduation? A graduate might seek a position that offers specialized training, pursue an advanced degree, or travel abroad for a year.A decision-making worksheet begins with a succinct statement of the problem that will also help to narrow it. It is important to be clear about the distinction between long-range and immediate goals because long-range goals often involve a different decision than short-range ones. Focusing on long- range goals, a graduating student might revise the question above to What will I do after graduation that will lead to successful career?1. What does the passage mainly discuss?(A) A tool to assist in making complex decisions.(B) A comparison of actual decisions and ideal decisions(C) Research on how people make decisions(D) Differences between long-range and short-range decision making2. The word essential in line 7 is closest in meaning to(A) introductory(B) changeable(C) beneficial(D) fundamental3. The word pertinent in line 9 is closest in meaning to(A) relevant(B) preceding(C) insightful(D) responsive4. Of the following steps, which occurs before the others in making a decision worksheet?(A) Listing the consequences of each solution(B) Calculating a numerical summary of each solution(C) Deciding which consequences are most important(D) Writing down all possible solutions5. According to decision-worksheet theory, an optimal decision is defined as one that(A) has the fewest variables to consider(B) uses the most decision worksheets(C) has the most points assigned to it(D) is agreed to by the greatest number of people6. The author develops the discussion in paragraph 1 bymeans of(A) describing a process(B) classifying types of worksheets(C) providing historical background(D) explaining a theory7. The author states that On the average, people can keep about seven ideas in their minds atonce (lines 17-18) to explain that(A) most decisions involve seven steps(B) human mental capacity has limitations(C) some people have difficulty making minor as well as major decisions(D) people can learn to keep more than seven ideas in their minds with practice8. The word succinct in line 24 is closest in meaning to(A) creative(B) satisfactory(C) personal(D) concise9. Which of the following terms is defined in the passage(A) Proponents (line 5)(B) Optimal (line 5)(C) Variables (line 17)(D) Long-range goals (line 25)10. The word it in line 24 refers to(A) worksheet(B) problem(C) distinction(D) decision11. The word revise in line 26 is closest in meaning to。

托福备考托福阅读34套TPO样题+解析+译文TPO 28—3 Buck Rubs and Buck Scrapes

托福备考托福阅读34套TPO样题+解析+译文TPO 28—3  Buck Rubs and Buck Scrapes

托福考试 复习TPO 28—3 Buck Rubs and Buck Scrapes原文:【1】A conspicuous sign indicating the presence of white-tailed deer in a woodlot is a buck rub. A male deer makes a buck rub by striping the bark (outer layer) of a small tree with its antlers. When completed, the buck rub is an obvious visual signal to us and presumable to other deer in the area. A rub is usually located at the shoulder height of a deer (one meter or less above the ground) on a smooth-barked, small-diameter (16-25 millimeters) tree. The smooth bark of small red maples makes this species ideal for buck rubs in the forests of the mid-eastern United States. 【2】Adult male deer usually produce rubs in late summer or early autumn when the outer velvet layer is being shed from their antlers. Rubs are created about one to two months before the breeding season (the rut). Hence for a long time biologists believed that male deer used buck rubs not only to clean and polish antlers but also to provide practice for the ensuing male-to-male combat during the rut. However, biologists also noted deer sniff and lick an unfamiliar rub, which suggests that this visual mark on a small tree plays an important communication purpose in the social life of deer.【3】Buck rubs also have a scent produced by glands in the foreheads of deer that is transferred to the tree when the rub is made. These odors make buck rubs an important means of olfactory communication between deer. The importance of olfactory communication (using odors to communicate) in the way of life of deer was documented by a study of captive adult male deer a few decades ago, whichnoted that males rubbed their foreheads on branches and twigs, especially as autumn approached. A decade later another study reported that adult male white-tailed deer exhibited forehead rubbing just before and during the rut. It was found that when a white-tailed buck makes a rub, it moves both antlers and forehead glands along the small tree in a vertical direction. This forehead rubbing behavior coincides with a high level of glandular activity in the modified scent glands found on the foreheads of male deer; the glandular activity causes the forehead pelage (hairy covering) of adult males to be distinctly darker than in females or younger males.【4】Forehead rubbing by male deer on buck rubs presumably sends a great deal of information to other members of the same species. First, the chemicals deposited on the rub provide information on the individual identity of an animal; no two mammals produce the same scent. For instance, as we all know, dogs recognize each other via smell. Second, because only male deer rub, the buck rub and its associated chemicals indicate the sex of the deer producing the rub. Third, older, more dominant bucks produce more buck rubs and probably deposit more glandular secretions on a given rub. Thus the presence of many well-marked rubs is indicative of older, higher-status males being in the general vicinity rather than simply being a crude measure of relative deer abundance in a given area. The information conveyed by the olfactory signals on a buck rub make it the social equivalent of some auditory signals in other deer species, such as trumpeting by bull elk.【5】Because both sexes of white-tailed respond to buck rubs by smelling and licking them, rubs may serve a very important additional function. Fresher buck rubs (less than two days old), in particular, are visited more frequently by adult females than older rubs. In view of this behavior it has been suggested that chemicals present in fresh buck rubs may help physiologically induce and synchronize fertility in females that visit these rubs. This would be an obvious advantage to wide-ranging deer, especially to a socially dominant buck when courting several adult females during the autumn rut. Another visual signal produced by while-tailed deer is termed a buck scrape. Scrapes consist of a clearing (about 0.5 meter in diameter) and shallow depression made by pushing aside the leaves covering the ground; after making the scrape, the deer typically urinates in the depression. Thus, like a buck rub, a scrape is both a visual and an olfactory signal. Buck scrapes are generally created after leaf-fall in autumn, which is just before or during the rut. Scrapes are usually placed in open or conspicuous places, such as along a deer trail. Most are made by older males, although females and younger males (2.5 years old or less) occasionally make scrapes题目:1.The word "conspicuous" in the passage(paragraph 1)is closest in meaning toA.noticeable.mon.C.strange.D.particular.2.According to paragraph 1, why are small red maple trees ideal for buckrubs?A.They have smooth bark.B.They are found in the mid-eastern United States.C.They grow very slowly.D.They tend to grow in open spaces.3.The studies of forehead rubbing by deer described in paragraph 3 showed thatA.forehead rubbing encourages the growth of antlers.B.mule deer and white-tailed deer behave differently during the rut.C.the rut can occur at different times of the year.D.deer convey important information through scent.4.The word "exhibited" in the passage(paragraph 3)is closest in meaning toA.relied on.B.increased.C.displayed.D.preferred.5.Why does the author mention that "dogs recognize each other via smell"?A.T o point out the similarities between dogs and deer.B.To argue that animals communicate through scent rather than through vision.C.To support the claim that the scent of a buck rub serves to identify its maker to other deer.D.T o suggest that buck rubs can be detected by other species.6.The word "crude" in the passage(paragraph 4)is closest in meaning toA.rough.eful.C.necessary.D.obvious.7.What can be inferred from paragraph 4 about the trumpeting of bull elk?A.Trumpeting by higher-status bull elk signals their presence to other members of their species.B.Bull elk need to combine trumpeting with olfactory signals to convey information about their identity.C.Trumpeting alerts white-tailed deer to the presence of bull elk in their vicinity.D.Trumpeting provides a better measure of deer presence in a given area than buck rubs do.8.According to paragraph 4, the buck rubs occurring in a given area revealall of the following information about deer EXCEPTA.the individual identity of the deer.B.the gender of the deer.C.the likely social status of the deer.D.the number of deer in the vicinity.9.The word "induce" in the passage(paragraph 5)is closest in meaning toA.increase.B.extend.C.delay.D.stimulate.10.According to paragraph 5, which of the following is true about chemicals in buck rubs?A.They have to be at least two days old for females to be able to detect them.B.They are more effective in older buck rubs than in fresher ones.C.They may affect fertility in female deer.D.They can be more easily detected by young males than adult females.11.The word "termed" in the passage(paragraph 5)is closest in meaning toA.associated with.B.visible as.C.known as.D.provided by.12.According to the passage, in what way do buck scrapes differ from buckrubs?A.Buck scrapes are made by both male and female deer.B.Buck scrapes are purely visual signals.C.Buck scrapes are made closer to the breeding season than buck rubs.D.Buck scrapes can be smelled only by deer.13. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence best fit? This process can take a few hours to several days.A conspicuous sign indicating the presence of white-tailed deer in a woodlot is abuck rub. ■【A】A make deer makes a buck rub by striping the bark(outer layer) of a small tree with its antlers. ■【B】When completed, the buck rubis an obvious visual signal to us and presumable to other deer in the area. ■【C】Arub is usually located at the shoulder height of a deer (one meter or less above the ground) on a smooth-barked, small-diameter (16-25 millimeters) tree.■【D】The smooth bark of small red maples makes this species ideal for buck rubs in the forests of the mid-eastern United States.14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.Buck rubs and buck scrapes are two types of markings made by white-tailed deer.A.The observation that deer sniff and lick buck rubs first led scientists to connect buck rubs with combat between adult males during the breeding season.B.Buck rubs and buck scrapes are visual signals and smells that deer use to communicate a variety of information to other deer.C.The number of buck rubs and buck scrapes in a given area changes as the density of the population of male deer in the area changes.D.As they rub the bark from trees, male deer leave behind chemicals produced by the glands in their foreheads, creating a scent that other deer can detect.E.The height of a buck rub, the type of tree used, and the direction in which the deerapplies the rub can give different kinds of information to other deer.F.Buck rubs are created close to the breeding season of deer and may affect the timing of fertility in the female deer that visit the rubs.答案:1.这里说一个XX的标志可以说明白尾鹿的存在。

托福备考托福阅读34套TPO样题+解析+译文23--2 Seventeenth-Century Dutch Agriculture

托福备考托福阅读34套TPO样题+解析+译文23--2 Seventeenth-Century Dutch Agriculture

托福考试 复习托福阅读TPO23(试题+答案+译文)第2篇:Seventeenth-Century Dutch Agriculture托福阅读原文【1】Agriculture and fishing formed the primary sector of the economy in the Netherlands in the seventeenth century. Dutch agriculture was modernized and commercialized new crops and agricultural techniques raised levels of production so that they were in line with market demands, and cheap grain was imported annually from the Baltic region in large quantities. According to estimates, about 120,000 tons of imported grain fed about 600,000 people: that is about a third of the Dutch population. Importing the grain, which would have been expensive and time consuming for the Dutch to have produced themselves, kept the price of grain low and thus stimulated individual demand for other foodstuffs and consumer goods.【2】Apart from this, being able to give up labor-intensive grain production freed both the land and the workforce for more productive agricultural divisions. The peasants specialized in livestock husbandry and dairy farming as well as in cultivating industrial crops and fodder crops: flax, madder, and rape were grown, as were tobacco, hops, and turnips. These products were bought mostly by urban businesses. Therewas also a demand among urban consumers for dairy products such as butter and cheese, which, in the sixteenth century, had become more expensive than grain. The high prices encouraged the peasants to improve their animal husbandry techniques; for example, they began feeding their animals indoors in order to raise the milk yield of their cows. 【3】In addition to dairy farming and cultivating industrial crops, a third sector of the Dutch economy reflected the way in which agriculture was being modernized-horticulture. In the sixteenth century, fruit and vegetables were to be found only in gardens belonging to wealthy people. This changed in the early part of the seventeenth century when horticulture became accepted as an agricultural sector. Whole villages began to cultivate fruit and vegetables. The produce was then transported by water to markets in the cities, where the consumption of fruit and vegetables was no longer restricted to the wealthy.【4】As the demand for agricultural produce from both consumers and industry increased, agricultural land became more valuable and people tried to work the available land more intensively and to reclaim more land from wetlands and lakes. In order to increase production on existing land, the peasants made more use of crop rotation and, in particular, began to apply animal waste to the soil regularly, rather than leaving the fertilization process up to the grazing livestock. For the first time industrial waste, such as ash from the soap-boilers, was collected in thecities and sold in the country as artificial fertilizer. The increased yield and price of land justified reclaiming and draining even more land.【5】The Dutch battle against the sea is legendary. Noorderkwartier in Holland, with its numerous lakes and stretches of water, was particularly suitable for land reclamation and one of the biggest projects undertaken there was the draining of the Beemster lake which began in 1608. The richest merchants in Amsterdam contributed money to reclaim a good 7,100 hectares of land. Forty-three windmills powered the drainage pumps so that they were able to lease the reclamation to farmers as early as 1612, with the investors receiving annual leasing payments at an interest rate of 17 percent. Land reclamation continued, and between 1590 and 1665, almost 100,000 hectares were reclaimed from the wetland areas of Holland, Zeeland, and Friesland. However, land reclamation decreased significantly after the middle of the seventeenth century because the price of agricultural products began to fall, making land reclamation far less profitable in the second part of the century.【6】Dutch agriculture was finally affected by the general agricultural crisis in Europe during the last two decades of the seventeenth century. However, what is astonishing about this is not that Dutch agriculture was affected by critical phenomena such as a decrease in sales and production, but the fact that the crisis appeared only relatively late in Dutch agriculture. In Europe as a whole, the exceptional reduction in thepopulation and the related fall in demand for grain since the beginning of the seventeenth century had caused the price of agricultural products to fall. Dutch peasants were able to remain unaffected by this crisis for a long time because they had specialized in dairy farming industrial crops, and horticulture. However, toward the end of the seventeenth century, they too were overtaken by the general agricultural crisis.托福阅读试题1.By indicating that production was in line with market demands (paragraph 1) the author means that Dutch farmers were able toA.exceed other European countries in agricultural production.B.produce crops mat were similar to those popular in other European countries.C.supply sufficient quantities of the agricultural products that the Dutch population wanted to buy.D.satisfy the demand for high quality agricultural products from the Baltic region.2.Which of the sentences below best expresses the essential information in the highlighted sentence in the passage (paragraph 1)? Incorrect choices change the meaning in important ways or leave out essential information.A.Buying imported grain led to the Dutch demanding that other foodstuffs and consumer goods be imported.B.Because the Dutch were able to import inexpensive grain, they had money available to create a demand for other food products and consumer goods.C.Keeping the price of grain low was a primary goal of the Dutch at a time when they could not produce enough grain to provide for all their needs.D.The demand for other foodstuffs and consumer goods forced the Dutch to import grain and other products at a time when maintaining low prices was especially important.3.The phrase “Apart from” in the passage (paragraph 2) is closest in meaning toA.Besides.B.Despite.C.As a result of.D.Instead of.4.According to paragraph 2, the increases demands on Dutch agriculture made by urban consumers had which of the following results?A.Seasonal shortages of the products consumers most wanted.B.Increased production of high-quality grain products.C.Raised prices charged by peasants to urban consumers.D.Different ways of caring for dairy-producing animals.5.The word “consumption” in the passage (paragraph 3) is closest in meaning toA.sale.B.storage.C.exportation.D.utilization.6.According to paragraph 3, the modernization of agriculture in the Netherlands was evident in all of the following ways EXCEPT:A.The production of fruits and vegetables became a commercial venture.B.The wealthy stopped growing fruits and vegetables in their gardens and grew flowers instead.C.Horticultural produce was transported to city markets by water.D.Many more people were able to afford to eat fresh fruits and vegetables.7.Select the TWO answer choices that, according to paragraph 4, indicate two methods people used to increase the productivity of their land. To receive credit you must select TWO answersA.They planted different crops in different sections of the farm each year.B.They used improved irrigation methods to increase the yield of crops.C.They increased the use of fertilizers to supply more nutrients to plants.D.They used new horticultural practices to produce different varieties of plants in the same section of the farm.8.The word “they” in the passage (paragraph 5) refers toA.merchants.B.hectares.C.windmills.D.drainage pumps.9.According to paragraph 5, which of the following was an important reason why land-reclamation projects in the first half of the seventeenth century proceeded rapidly?A.Windmills became powerful enough to run drainage pumps efficiently.B.Merchants invested large amounts of money in reclamation.C.High interest rates discouraged people from buying land already available.D.Reclaimed land was much more suitable for agriculture than the existing land.10.The word “legendary” in the passage (paragraph 5) is closest in meaning toA.continuous.B.well documented.C.famous.D.expensive.11.The word “astonishing” in the passage (paragraph6) is closest in meaning toA.incredibleB.unfortunateC.predictedD.evident12.Which of the following best describes the organization of the passage (in paragraph 6)?A.A presentation of a theory and the evidence in favor of it.B.A general statement followed by examples and relevant details.C.A analysis of a problem and its solution.D.A series of statements leading to a conclusion.13. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence best fit? Click on a square [■] to add the sentence to the passage. Some villages specialized in growing cabbages and carrots; others grew onions, mustard, and coriander; and still others produced fruit and cultivated trees in nurseries.Paragraph 3: In addition to dairy farming and cultivating industrial crops, a third sector of the Dutch economy reflected the way in which agriculture was being modernized-horticulture. ■【A】In the sixteenth century, fruit and vegetables were to be found only in gardens belonging to wealthy people. ■【B】This changed in the early part of the seventeenth century when horticulture became accepted as an agricultural sector. ■【C】Whole villages began to cultivate fruit and vegetables. ■【D】Theproduce was then transported by water to markets in the cities, where the consumption of fruit and vegetables was no longer restricted to the wealthy.14. Direction: An introductory sentence for a brief summary of the passage is provides below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences presented in the passage or are minor ideas in the passage. This question is worth 2 points.Agriculture formed one of the primary sectors of the economy in seventeenth-century Netherlands.A.The Baltic region produced large quantities of grain for export to other regions, including the Netherlands.B.The richest people grew enough fruits and vegetables to supply the entire country with fresh produce.C.An agricultural crisis that began in Europe did not affect Dutch land-reclamation projects.D.Specialization in dairy farming, industrial crops, and horticulture allowed the Dutch to be more productive than some other regions in Europe.nd reclamation and improvement allowed the Dutch to meet demands for their agricultural products.F.Because the Dutch had specialized their agricultural output they wereless susceptible to the crisis that Europe experienced from the beginning of the century.托福阅读答案1.以market demands做关键词定位至第二句,说农业现代化,commercialized 的作物和先进的agricultural technique使得产量升高,从而可以满足市场的需要,因此这些人满足市场需要的原因是作物的产量高,所以正确答案是C。

托福备考托福阅读34套TPO样题+解析+译文26—1 Energy and the Industrial Revolution

托福备考托福阅读34套TPO样题+解析+译文26—1  Energy and the Industrial Revolution

托福考试 复习TPO 26—1 Energy and the Industrial Revolution原文:【1】For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power. Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.【2】In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift toincreased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain’s most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the consequent increase in coal production was made possible as the steam-powered pumps drained water from the ever-deeper coal seams found below the water table.【3】The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industry expanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.【4】Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred,but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power. However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. Also, the availability of jobs in railway construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.题目:1.Why does the author provide the information that “Great Britain had large amounts of coal”(paragraph 1)?A.T o reject the claim that Britain was facing an energy shortage in the eighteenth century.B.To explain why coal rather than other energy resources became the primarysource of heat for homes and industries in eighteenth-century Britain.C.To indicate that Britain’s energy shortage was not the result of a lack of fuel.D.T o explain why coal mining became an important industry in nineteenth-century.2.What was “the problem of energy" that had to be solved to make the Industrial Revolution of the eighteenth century possible?A.Water and wind could not be used efficiently.B.There was no efficient way to power machinery.C.Steam engines required large amounts of coal, which was in short supply.D.Neither humans nor animals were strong enough to provide the power required for industrial application.3.Which of the following is NOT mentionedin paragraph 2 as a development in cotton mills brought about by Watt’s steamengine?A.The importing of huge quantities of raw cotton by Britain.B.Increased mechanization.C.More possibilities for mill location.D.Smaller mills.4.The phrase “apparent in” in the passage(paragraph 2)is clo sest in meaning toA.clearly seen in.B.aided by.C.associated with.D.followed by.5.According to paragraph 2, what was Britain’s most important export by 1850?A.Raw cotton.B.Cotton cloth.C.Steam-powered pumps.D.Coal.6.The word “consequent”(paragraph 2)in the passage is closest in meaning toA.resulting.B.encouraging.C.well documented.D.immediate.7.What is the role of paragraph 2 in the passage as a whole?A.It explains how by increasing the supply of raw materials from other countries, British industries were able to reduce costs and increase production.B.It explains how the production of mechanical energy and its benefits spread quickly across countries that were linked commercially with Great Britain.C.It demonstrates why developments in a single industry could not have caused the Industrial Revolution.D.It illustrates why historians have assigned great importance to the issue of energy in the rise of the Industrial Revolution.8.According to paragraph 3, why was the use of coke important for the ironindustry?A.It helped make wood into charcoal.B.It reduced the dependency on steam-powered machines used for the production of iron.C.It replaced charcoal in the production of raw and refined iron.D.It powered the machines used to extract coal in coal mines.9.According to paragraph 3, all of the following were true of the ironindustry in Great Britain during the 1800s EXCEPTA.Steam-driven bellows were used to produce raw iron.B.By the 1850s Brita in was the world’s largest producer of iron.C.Steam-powered mills made it possible to produce iron of different shapes and sizes.D.Greater demand for higher-quality iron increased its price.10.The word “initiated”in the passage is closest in meaning toA.anticipated.B.accelerated.C.spread.D.started.11.Paragraph 4 implies which of the following about the transformation inrail transportation?A.Because railway construction employed mostly rural laborers, unemployment increased among urban workers.B.It resulted in more trade within the country, but less trade with markets that could be reached only by ocean shipping.C.It made shipping freight overland to distant markets less expensive.D.It resulted in higher wages for factory workers.12.The phrase “a ccustomed to" in the passage is closest in meaning toA.in need of.ed to.C.tired of.D.encouraged by.13. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Click on a square to add the sentence to the passage. The first steam-powered locomotives were slow but they rapidly improved in speed and carrying capacity.Steam power and iron combined to revolutionize transport, which in turnhad further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power. ■【A】However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. ■【B】As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. ■【C】Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. ■【D】Also, the availability of jobs in railway construction attractedmany rural laborers accustomed to seasonal and temporary employment. When the work was completed,many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.The coming of the Industrial Revolution in eighteenth-century Britaindepended on the development of the steam engine to power machinery.A.For years, historians disregarded the issue of energy as a major element in the rise of the Industrial Revolution and focused instead on technological developments and increased production.B.The introduction and growth of steam-powered rail transport was a major factor in Britain's economic expansion during the Industrial Revolution.C.An expansion of the Industrial Revolution outside Great Britain occurred when British industries began to import raw cotton and high-quality iron.D.By 1850, the use of steam power in Britain's mills, mines, and iron industry made Britain a world leader in the production of cotton cloth and iron.E.Since the basic infrastructure was in place, the Industrial Revolution fueled itself with enlarging markets requiring ever more expansion of factories and workforce.F.By the end of the 1800s, railway construction attracted so many laborers thatfactories could not find enough workers to keep up with increasing sales.答案:1.目的题,读highlight所在句,说英国有煤,但没法变成能量来运行机器,选项C同时说了由煤木有能量,是正确答案。

托福备考托福阅读34套TPO样题+解析+译文1--1Groundwater

托福备考托福阅读34套TPO样题+解析+译文1--1Groundwater

托福考试 复习托福阅读TPO1(试题+答案+译文)第1篇:Groundwater托福阅读原文Groundwater is the word Groundwater is the word used to describe water that saturates the ground, filling all the Groundwater is the word used to describe water that saturates the ground, filling all the available spaces. By far the most abundant type of groundwater is meteoric water; this is the groundwater that circulates as part of the water cycle. Ordinary meteoric water is water that has soaked into the ground from the surface, from precipitation (rain and snow) and from lakes and streams. There it remains, sometimes for long periods, before emerging at the surface again.At first thought it seems incredible that there can be enough space in the “solid” ground underfoot to hold all this water.The necessary space is there, however, in many forms. The commonest spaces are those among the particles—sand grains and tiny pebbles—of loose, unconsolidated sand and gravel. Beds of this material, out of sight beneath the soil, are common. They are found wherever fast rivers carrying loads of coarse sediment once flowed. For example, as the great ice sheets that covered North America during the last ice age steadily melted away, huge volumes of water flowed from them. The water wasalways laden with pebbles, gravel, and sand, known as glacial outwash, that was deposited as the flow slowed down.The same thing happens to this day, though on a smaller scale, wherever a sediment-laden river or stream emerges from a mountain valley onto relatively flat land, dropping its load as the current slows: the water usually spreads out fanwise, depositing the sediment in the form of a smooth, fan-shaped slope. Sediments are also dropped where a river slows on entering a lake or the sea, the deposited sediments are on a lake floor or the seafloor at first, but will be located inland at some future date, when the sea level falls or the land rises; such beds are sometimes thousands of meters thick.In lowland country almost any spot on the ground may overlie what was once the bed of a river that has since become buried by soil; if they are now below the water’s upper surface (the water table), the gravels and sands of the former riverbed, and its sandbars, will be saturated with groundwater.So much for unconsolidated sediments. Consolidated (or cemented) sediments, too, contain millions of minute water-holding pores. This is because the gaps among the original grains are often not totally pluggedwith cementing chemicals; also, parts of the original grains may become dissolved by percolating groundwater, either while consolidation is taking place or at any time afterwards. The result is that sandstone, for example, can be as porous as the loose sand from which it was formed.Thus a proportion of the total volume of any sediment, loose or cemented, consists of empty space. Most crystalline rocks are much more solid; a common exception is basalt, a form of solidified volcanic lava, which is sometimes full of tiny bubbles that make it very porous.The proportion of empty space in a rock is known as its porosity. But note that porosity is not the same as permeability, which measures the ease with which water can flow through a material; this depends on the sizes of the individual cavities and the crevices linking them.Much of the water in a sample of water-saturated sediment or rock will drain from it if the sample is put in a suitable dry place. But some will remain, clinging to all solid surfaces. It is held there by the force of surface tension without which water would drain instantly from any wet surface, leaving it totally dry. The total volume of water in the saturated sample must therefore be thought of as consisting of water that can, and water that cannot, drain away.The relative amount of these two kinds of water varies greatly from one kind of rock or sediment to another, even though their porosities may be the same. What happens depends on pore size. If the pores are large, the water in them will exist as drops too heavy for surface tension to hold, and it will drain away; but if the pores are small enough, the water in them will exist as thin films, too light to overcome the force of surface tension holding them in place; then the water will be firmly held.托福阅读试题1.Which of the following can be inferred from paragraph 1 about the ground that we walk on?A.It cannot hold rainwater for long periods of time.B.It prevents most groundwater from circulating.C.It has the capacity to store large amounts of water.D.It absorbs most of the water it contains from rivers.2.The word “incredible” in the passage (paragraph 1) 1is closest in meaning toA.confusingfortingC.unbelievableD.interesting3.The word “out of sight” in the passage (paragraph 2) is closest in meaning toA.far awayB.hiddenC.partly visibleD.discovered4.According to paragraph 2, where is groundwater usually found?A.Inside pieces of sand and gravelB.On top of beds of rockC.In fast rivers that are flowing beneath the soilD.In spaces between pieces of sediment5.The phrase “glacial outwash” in the passage (paragragh 2) refers toA.fast riversB.glaciersC.the huge volumes of water created by glacial meltingD.the particles carried in water from melting glaciers6.All of the following are mentioned in paragraph 3 as places that sediment-laden rivers can deposit their sediments EXCEPTA.A mountain valleyB.Flat landC.A lake floorD.The seafloor7.The word “overlie” in the passage (paragragh 4)) is closest in meaning toA. coverB. changeC. separateD. surround8.The phrase “So much for” in the passage (paragragh 5) is closest in meaning toA.that is enough aboutB.now let us turn toC.of greater concern areD.this is related to9.The word “plugged” in the passage (paragragh 5) is closet in meaning to washedA.draggedB.filled upC.soaked through10.According to paragraphs 6 and 7, why is basalt unlike most crystalline forms of rock?A.It is unusually solid.B.It often has high porosity.C.It has a low proportion of empty space.D.It is highly permeable.11.What is the main purpose of paragraph 7?A.To explain why water can flow through rockB.To emphasize the large amount of empty space in all rockC.To point out that a rock cannot be both porous and permeableD.To distinguish between two related properties of rock12.Which of the sentences below best expresses the essential information in the highlighted sentence in the passage (paragragh 9)? Incorrect choices change the meaning in important ways or leave out essential information.A.Surface tension is not strong enough to retain drops of water in rocks with large pores but it strong enough to hold on to thin films of water in rocks with small pores.B.Water in rocks is held in place by large pores and drains away from small size pores through surface tension.C.Small pores and large pores both interact with surface tension to determine whether a rock will hold water as heavy drops or as a thin film.D.If the force of surface tension is too weak to hold water in place as heavy drops, the water will continue to be held firmly in place as a thin film when large pores exist.13.Look at the four squares [█] that indicate where the following sentence could be added to the passage.What, then, determines what proportion of the water stays and what proportion drains away?Much of the water in a sample of water-saturated sediment or rock willdrain from it if the sample is put in a suitable dry place. █【A】Butsome will remain, clinging to all solid surfaces. █【B】It is held there by the force of surface tensionwithout which water would drain instantly from any wet surface, leaving ittotally dry. █【C】The total volume of water in the saturated sample musttherefore be thought of as consisting of water that can, and water that cannot,drain away. █【D】Where would thesentence best fit?14.Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.Much of the ground is actually saturated with water.A.Sediments that hold water were spread by glaciers and are still spread by rivers and streams.B.Water is stored underground in beds of loose sand and gravel or in cemented sediment.C.The size of a saturated rock’s pores determines how much water it will retain when the rock is put in a dry place.D.Groundwater often remains underground for a long time before it emerges again.E.Like sandstone, basalt is a crystalline rock that is very porous.F.Beds of unconsolidated sediments are typically located at inland sites that were once underwater.托福阅读答案1.以ground作为关键词定位至全段最后一句,说At first sight土地是不可能有那么大的空间去容纳这些水的,at first sight第一眼看上去的意思是这个不是事实,而且事实刚好与这个相反,也就是说土地是有空间的,所以C正确2.incredible令人难以置信的,想到credit card信用卡,credit指的是信用或者学分ible或者able表示可以……的,credible可信的,incredible难以置信的,不知道的话看上题也知道是不可能3.out of sight表面意思就是在视野之外,也就是看不见,C和D都说看见,所以错。

托福备考托福阅读34套TPO样题+解析+译文26—3 Sumer and the First Cities of the Ancient Near East

托福备考托福阅读34套TPO样题+解析+译文26—3  Sumer and the First Cities of the Ancient Near East

托福考试 复习TPO 26—3 Sumer and the First Cities of the Ancient Near East原文:【1】The earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq. It was here that the civilization known as Sumer emerged in its earliest form in the fifth millennium. At first sight, the plain did not appear to be a likely home for a civilization. There were few natural resources, no timber, stone, or metals. Rainfall was limited, and what water there was rushed across the plain in the annual flood of melted snow. As the plain fell only 20 meters in 500 kilometers, the beds of the rivers shifted constantly. It was this that made the organization of irrigation, particularly the building of canals to channel and preserve the water, essential. Once this was done and the silt carried down by the rivers was planted, the rewards were rich: four to five times what rain-fed earth would produce. It was these conditions that allowed an elite to emerge, probably as an organizing class, and to sustain itself through the control of surplus crops.【2】It is difficult to isolate the factors that led to the next development—the emergence of urban settlements. The earliest, that of Eridu, about 4500 B.C.E., and Uruk, a thousand years later, center on impressive temple complexes built of mud brick. In some way, the elite had associated themselves with the power of the gods. Uruk, for instance, had two patron gods—Anu, the god of the sky and sovereign of all other gods, and Inanna, a goddess of love and war—and there were others, patrons of different cities. Human beings were at their mercy. The biblical story ofthe Flood may originate in Sumer. In the earliest version, the gods destroy the human race because its clamor had been so disturbing to them.【3】It used to be believed that before 3000 B.C.E. the political and economic life of the cities was centered on their temples, but it now seems probable that the cities had secular rulers from earliest times. Within the city lived administrators, craftspeople, and merchants. (Trading was important, as so many raw materials, the semiprecious stones for the decoration of the temples, timbers for roofs, and all metals, had to be imported.) An increasingly sophisticated system of administration led in about 3300 B.C.E. to the appearance of writing. The earliest script was based on logograms, with a symbol being used to express a whole word. The logograms were incised on damp clay tablets with a stylus with a wedge shape at its end. (The Romans called the shape cuneus and this gives the script its name of cuneiform.) Two thousand logograms have been recorded from these early centuries of writing.A more economical approach was to use a sign to express not a whole word but a single syllable. (To take an example: the Sumerian word for " head” was “sag.” Whenever a word including a syllable in which the sound “sag” was to be written, the sign for “sag" could be used t o express that syllable with the remaining syllables of the word expressed by other signs.) By 2300 B.C.E. the number of signs required had been reduced to 600, and the range of words that could be expressed had widened. Texts dealing with economic matters predominated, as they always had done; but at this point works of theology, literature, history, and law also appeared.【4】Other innovations of the late fourth millennium include the wheel, probably developed first as a more efficient way of making pottery and then transferred to transport. A tablet engraved about 3000 B.C.E. provides the earliest known example from Sumer, a roofed boxlike sledge mounted on four solid wheels. A major development was the discovery, again about 3000 B.C.E., that if copper, which had been known in Mesopotamia since about 3500 B.C.E., was mixed with tin, a much harder metal, bronze, would result. Although copper and stone tools continued to be used, bronze was far more successful in creating sharp edges that could be used as anything from saws and scythes to weapons. The period from 3000 to 1000 B.C.E., when the use of bronze became widespread, is normally referred to as the Bronze Age.题目:1.Which of the following is NOT mentioned in paragraph 1 as a disadvantage of the Mesopotamian plain?A.There was not very much rainfall for most of the year.B.Melting snow caused flooding every year.C.The silt deposited by rivers damaged crops.D.Timber, stone and metals were not readily available.2.According to paragraph 1, which of the following made it possible for anelite to emerge?A.New crops were developed that were better suited to conditions on theMesopotamian plain.B.The richest individuals managed to gain control of the most valuable cropland.C.Control over the few available natural resources made some people four to five times richer than everyone else.D.The building of canals to increase agricultural output required organization.3.The word “sustain”in the passage(paragraph 1)is closest in meaning toA.defend.B.promote.C.maintain.D.transform.4.According to paragraph 2, Eridu and Uruk are examples of urbansettlements thatcked the features usually found in other early urban settlements.B.developed around religious buildings.C.grew much more rapidly than most of the urban settlements found in Sumer.D.were mysteriously destroyed and abandoned.5.The word “sovereign"in the passage is closest in meaning toA.counselor.B.master.C.defender.D.creator.6.According to paragraph 3, which of the following led to the appearanceof writing?A.An increasingly sophisticated administrative system.B.Coordination between secular and religious leaders.C.The large volume of trade, particularly imports.D.A rapidly expanding and changing population.7.In paragraph 3, why does the author provide the information that the number of signs in use had dropped from 2,000 to 600 by 2300 B.C.E.?A.T o argue that the development of writing involved periods of growth followed by periods of decline.B.To demonstrate that earlier written texts used a larger vocabulary than later texts, which were aimed at a broader audience.C.To support the claim that the range of words expressed by logograms varied widely depending on time period and type of text.D.T o provide evidence for the increased efficiency of using signs to express syllables rather than whole words.8.According to paragraph 3, ancient texts most commonly dealt withA.theology.B.literature.C.economics.w.9.According to paragraph 4, the earliest wheels probablyA.were first developed in areas outside Mesopotamia.B.were used to make pottery.C.appeared on boxlike sledges.D.were used to transport goods between cities.10.The word “engraved”in the passage(paragraph 4)is closest in meaning toA.carved.B.produced.C.dated.D.discovered.11.Which of the sentences below best expresses the essential information inthe highlighted sentence in the passage paragraph 4 ? Incorrect choices change the meaning in important ways or leave out essential information.A.Also around 3000B.C.E., it was discovered that mixing copper, known from about 3500 B.C.E., with tin would create a much harder metal known as bronze.B.Although copper had been known since 3500 B.C.E in Mesopotamia, the discovery of bronze did not occur until around 3000 B.C.E.C.Another major development around 3000 B.C.E. was the discovery that copper could be mixed with a much harder metal known as tin.D.The development of bronze by mixing copper and tin probably occurred around 3000 B.C.E. but may have happened as early as 3500 B.C.E.12.The word “widespread”in the passage(paragraph 4)is closest in meaning toA.obvious.B.significant.C.necessary.mon.13. Look at the four squares [■]that indicate where the following sentence could be added to the passage.Where would the sentence best fit? City life was diverse, and the population was engaged in a variety of occupations.It used to be believed that before 3000 B.C.E. the political and economic life of the cities was centered on their temples, but it now seems probable that the cities had secular rulers from earliest times. ■【A】Within the city lived administrators, craftspeople, and merchants. (Trading was important, as so many raw materials,the semiprecious stones for the decoration of the temples, timbers for roofs,and all metals, had to be imported.) ■【B】An increasingly sophisticated system of administrationled in about 3300 B.C.E. to the appearance of writing. ■【C】The earliest script was based on logograms, with asymbol being used to express a whole word. ■【D】The logograms were incised on damp clay tablets with a stylus with a wedge shape at its end. (The Romans called the shape cuneus and this gives the script its name of cuneiform.) Two thousand logograms have been recorded from these early centuries of writing. A more economical approach wasto use a sign to express not a whole word but a single syllable. (To take an example: the Sumerian word for " head” was “sag.” Whenever a wordincluding a syllable in which the sound “sag” was to be written, the sign for“sag" could be used to express that syllable with the remaining syllablesof the word expressed by other signs.) By 2300 B.C.E. the number of signs required had been reduced to 600, and the range of words that could be expressed had widened. Texts dealing with economic matters predominated, as they alwayshad done; but at this point works of theology,literature, history, and lawalso appeared.14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minorideas in the passage. This question is worth 2 points.Irrigation made it possible for the civilization known as Sumer to arise on the Mesopotamian plain in the fifth millennium B.C.E.A.The scarcity of natural resources on the plain made it necessary for a powerful elite to emerge and take charge of trade and imports.B.The economy of each city was based on a craft such as pottery or metal working, and the city of Eridu was known for its saws, scythes and weapons.C.Writing appeared in the form of logograms and later developed into a system using signs to represent syllables rather than whole words.D.Priests were powerful figures in the ancient civilization and controlled the political and economic life of the cities.E.The earliest city states had one or more patron gods and were built around central temple complexes.F.The development of the wheel and the creation of bronze were important innovations in Sumer答案:1.A选项的rainfall和B的melting snow做关键词定位至第五句,都正确,不选;C的silt 确实讲过,但并没讲damaged crops,所以C错,选;D的timber, stone and metals定位至第四句,正确,不选。

TOEFL托福阅读理解真题汇总

TOEFL托福阅读理解真题汇总

TOEFL托福阅读理解真题汇总为了让大家更好的预备托福考试,我给大家整理一些托福阅读真题,下面我就和大家共享,来观赏一下吧。

托福阅读真题1The economic depression in the late-nineteenth-century United States contributed significantly to a growing movement in literature toward realism and naturalism. After the 1870s, a number of important authors began to reject the romanticism that had prevailed immediately following the Civil War of 1861-1865 and turned instead to realism. Determined to portray life as it was, with fidelity to real life and accurate representation without idealization, they studied local dialects, wrote stories which focused on life in specific regions of the country, and emphasized the true relationships between people. In doing so, they reflected broader trends in the society, such as industrialization, evolutionary theory which emphasized the effect of the environment on humans, and the influence of science.Realists such as Joel Chandler Harris and Ellen Glasgow depicted life in the South, Hamlin Garland described life on the Great Plains, and Sarah Orne Jewett wrote about everyday life in rural New England. Another realist, Bret Harte, achieved fame with stories that portrayed local life in the California mining camps. Samuel Clemens, who adopted the pen name Mark Twain, became the countrys most outstanding realist author, observing life around him with a humorous and skeptical eye. In his stories and novels, Twain drew on his own experiences and used dialect and common speech instead of literary language, touching off a major change in American prose style.Other writers became impatient even with realism. Pushing evolutionary theory to its limits, they wrote of a world in which a crueland merciless environment determined human fate. These writers, called naturalists, often focused on economic hardship, studying people struggling with poverty, and other aspects of urban and industrial life. Naturalists brought to their writing a passion for direct and honest experience.Theodore Dreiser, the foremost naturalist writer, in novels such as Sister Carrie, grimly portrayed a dark world in which human beings were tossed about by forces beyond their understanding or control. Dreiser thought that writers should tell the truth about human affairs, not fabricate romance, and Sister Carrie, he said, was not intended as a piece of literary craftsmanship, but was a picture of conditions.1. Which aspect of late-nineteenth-century United States literature does the passage mainlydiscuss?(A) The influence of science on literature(B) The importance of dialects for realist writers(C) The emergence of realism and naturalism(D) The effects of industrialization on romanticism2. The word prevailed in line 4 is closest in meaning to(A) dominated(B) transformed(C) entered(D) generalized3. The word they in line 8 refers to(A) authors(B) dialects(C) stories(D) relationships4. According to the passage , a highly significant factor in the development of realist andnaturalist literature was(A) the Civil War(B) a recognition that romanticism was unpopular(C) an increased interest in the study of common speech(D) an economic depression5. Realist writers took an interest in all of the following EXCEPT(A) human relationships(B) characteristics of different regions(C) the idealization of life(D) social and historical theories6. The word depicted in line 11 is closest in meaning to(A) emphasized(B) described(C) criticized(D) classified7. Why does the author mention mining camps in line 14?(A) To contrast the themes of realist and naturalist writers(B) To illustrate how Bret Harte differed from other authors(C) As an example of a topic taken up by realist writers(D) As an example of how setting can influence literary style8. Which of the following wrote about life in rural New England?(A) Ellen Glasgow(B) Sarah Orne Jewett(C) Hamlin Garland(D) Mark Twain9. Mark Twain is considered an important literary figure because he(A) was the first realist writer in the United States(B) rejected romanticism as a literary approach(C) wrote humorous stories and novels(D) influenced American prose style through his use of common speech10. The word foremost in line 25 is closest in meaning to(A) most difficult(B) interesting(C) most focused(D) leading11. Which of the following statements about Theodore Dreiser is supported by the passage ?(A) He mainly wrote about historical subjects such as the Civil War.(B) His novels often contained elements of humor.(C) He viewed himself more as a social commentator than as a literary artist.(D) He believed writers should emphasize the positive aspects of life.PASSAGE 83 CAADC BCBDD C托福阅读真题2The lack of printing regulations and the unenforceability of British copyright law in the American colonies made it possible for colonial printers occasionally to act as publishers. Although they rarely undertook major publishing project because it was difficult to sell books as cheaply as they could be imported from Europe, printers in Philadelphia did publish work that required only small amounts of capital, paper, and type. Broadsides could be published with minimal financial risk. Consisting of only one sheet of paper and requiring small amounts of type, broadsides involved lower investments of capital than longer works. Furthermore, the broadside format lent itself to subjects of high, if temporary, interest, enabling them to meet with ready sale. If the broadside printer miscalculated, however, and produced a sheet that did not sell, it was not likely to be a major loss, and the printer would know this immediately, There would be no agonizing wait with large amounts of capital tied up, books gathering dust on the shelves, and creditors impatient for payment.In addition to broadsides, books and pamphlets, consisting mainly of political tracts, catechisms, primers, and chapbooks were relatively inexpensive to print and to buy. Chapbooks were pamphlet-sized books, usually containing popular tales, ballads, poems, short plays, and jokes, small, both in formal and number of pages, they were generally bound simply, in boards (a form of cardboard) or merely stitched in paper wrappers (a sewn antecedent of modern-day paperbacks). Pamphlets and chapbooks did not require fine paper or a great deal of type to produce they could thus be printed in large, cost-effective editions and sold cheaply.By far, the most appealing publishing investments were to be found in small books that had proven to be steady sellers, providing a reasonably reliable source of income for the publisher. They would not, by nature, be highly topical or political, as such publications would prove of fleeting interest. Almanacs, annual publications that contained information on astronomy and weather patterns arranged according to the days, week, and months of a given year, provided the perfect steady sellerbecause their information pertained to the locale in which they would be used.1. Which aspect of colonial printing does the passage mainly discuss?(A) Laws governing the printing industry.(B) Competition among printers(C) Types of publications produced(D) Advances in printing technology2. According to the passage , why did colonial printers avoid major publishing projects?(A) Few colonial printers owned printing machinery that was large enough to handle majorprojects.(B) There was inadequate shipping available in the colonies.(C) Colonial printers could not sell their work for a competitive price.(D) Colonial printers did not have the skills necessary to undertake large publishing projects.3. Broadsides could be published with little risk to colonial printers because they(A) required a small financial investment and sold quickly(B) were in great demand in European markets(C) were more popular with colonists than chapbooks and pamphlets(D) generally dealt with topics of long-term interest to many colonists4. The word they in line 17 refers to(A) chapbooks(B) tales(C) jokes(D) pages5. The word antecedent in line 19 is closest in meaning to(A) predecessor(B) format(C) imitation(D) component6. Chapbooks produced in colonial America were characterized by(A) fine paper(B) cardboard covers(C) elaborate decoration(D) a large number of pages7. The word appealing in line 22 is closest in meaning to(A) dependable(B) respectable(C) enduring(D) attractive8. What were steady sellers (line 23)?(A) Printers whose incomes were quite large(B) People who traveled from town to town selling Books and pamphlets(C) Investors who provided reliable financial Support for new printers(D) Publications whose sales were usually consistent from year to year9. The word locale in line 28 is closest in meaning to(A) topic(B) season(C) interest(D) place10. All of the following are defined in the passage EXCEPT(A) Broadsides (line 6)(B) catechisms (line 15)(C) chapbooks (line l6)(D) Almanacs (line 25)PASSAGE 84 CCAAA BDDDB托福阅读真题3Tulips are Old World, rather than New World, plants, with the origins of the species lying in Central Asia. They became an integral part of the gardens of the Ottoman Empire from the sixteenth century onward, and, soon after, part of European life as well. Holland, in particular, became famous for its cultivation of the flower.A tenuous line marked the advance of the tulip to the New World, where it was unknown in the wild. The first Dutch colonies in North America had been established in New Netherlands by the Dutch West India Company in 1624, and one individual who settled in New Amsterdam (todays Manhattan section of New York City) in 1642 described the flowers that bravely colonized the settlers gardens. They were the same flowers seen in Dutch still-life paintings of the time: crown imperials, roses, carnations, and of course tulips. They flourished in Pennsylvania too, where in 1698 William Penn received a report of John Tatehams Great and Stately Palace, its garden full of tulips. By 1760, Boston newspapers were advertising 50 different kinds of mixed tulip roots. But the length of the journey between Europe and North Americacreated many difficulties. Thomas Hancock, an English settler, wrote thanking his plant supplier for a gift of some tulip bulbs from England, but his letter the following year grumbled that they were all dead.Tulips arrived in Holland, Michigan, with a later wave of early nineteenth-century Dutch immigrants who quickly colonized the plains of Michigan. Together with many other Dutch settlements, such as the one at Pella, Iowa, they established a regular demand for European plants. The demand was bravely met by a new kind of tulip entrepreneur, the traveling salesperson. One Dutchman, Hendrick van der Schoot, spent six months in 1849 traveling through the United States taking orders for tulip bulbs. While tulip bulbs were traveling from Europe to the United States to satisfy the nostalgic longings of homesick English and Dutch settlers, North American plants were traveling in the opposite direction. In England, the enthusiasm for American plants was one reason why tulips dropped out of fashion in the gardens of the rich and famous.1. Which of the following questions does the passage mainly answer?(A) What is the difference between an Old World and a New World plant?(B) Why are tulips grown in many different parts of the world?(C) How did tulips become popular in North America?(D) Where were the first Dutch colonies in North America located?2. The word integral in line 2 is closest in meaning to(A) interesting(B) fundamental(C) ornamental(D) overlooked3. The passage mentions that tulips were first found in which of the following regions?(A) Central Asia(B) Western Europe(C) India(D) North America4. The word flourished in line 11 is closest in meaning to(A) were discovered(B) were marketed(C) combined(D) thrived5. The author mentions tulip growing in New Netherlands, Pennsylvania. and Michigan in order toillustrate how(A) imported tulips were considered more valuable than locally grown tulips(B) tulips were commonly passed as gifts from one family to another(C) tulips grew progressively more popular in North America(D) attitudes toward tulips varied from one location to another6. The word grumbled in line 16 is closest in meaning to(A) denied(B) warned(C) complained(D) explained7. The passage mentions that one reason English and Dutch settlers planted tulips in theirgardens was that tulips(A) were easy to grow(B) had become readily available(C) made them appear fashionable(D) reminded them of home8. The word they in line 20 refers to(A) tulips(B) plains(C) immigrants(D) plants9. According to the passage , which of the following changes occurred in English gardens duringthe European settlement of North America?(A) They grew in size in order to provide enough plants to export to the New World.(B) They contained a wider variety of tulips than ever before.(C) They contained many new types of North American plants.(D) They decreased in size on the estates of wealthy people.10. The passage mentions which of the following as a problem associated with the importation oftulips into North America?(A) They were no longer fashionable by the time they arrived.(B) They often failed to survive the journey.(C) Orders often took six months or longer to fill.(D) Settlers knew little about how to cultivate them.PASSAGE 85 CBADC CDCCB。

托福TPO阅读48篇(带答案)

托福TPO阅读48篇(带答案)

托福TPO阅读48文本+题目+答案Chinese Population GrowthIncreases in population have usually been accompanied (indeed facilitated) by an increase in trade. In the Western experience, commerce provided the conditions that allowed industrialization to get started, which in turn led to growth in science, technology, industry, transport, communications, social change, and the like that we group under the broad term of “development.” However, the massive increase in population that in Europe was at first attributed to industrialization starting in the eighteenth century occurred also and at the same period in China, even though there was no comparable industrialization.It is estimated that the Chinese population by 1600 was close to 150 million. The transition between the Ming and Qing dynasties (the seventeenth century) may have seen a decline, but from 1741 to 1851 the annual figures rose steadily and spectacularly, perhaps beginning with 143 million and ending with 432 million. If we accept these totals, we are confronted with a situation in which the Chinese population doubled in the 50 years from 1790 to 1840. If, with greater caution, we assume lower totals in the early eighteenth century and only 400 million in 1850, we still face a startling fact: something like a doubling of the vast Chinese population in the century before Western contact, foreign trade, and industrialization could have had much effect.To explain this sudden increase we cannot point to factors constant in Chinese society but must find conditions or a combination of factors that were newly effective in this period. Among these is the almost complete internal peace maintained under Manchu rule during the eighteenth century. There was also an increase in foreign trade through Guangzhou (southern China) and some improvement of transportation within the empire. Control of disease, like the checking of smallpox by variolation may have been important. But of most critical importance was the food supply.Confronted with a multitude of unreliable figures, economists have compared the population records with the aggregate data for cultivated land area and grain production in the six centuries since 1368. Assuming that China’s population in1400 was about 80 million, the economist Dwight Perkins concludes that its growth to 700 million or more in the 1960s was made possible by a steady increase in the grain supply, which evidently grew five or six times between 1400 and 1800 and rose another 50 percent between 1800 and 1965. This increase of food supply was dueperhaps half to the increase of cultivated area, particularly by migration and settlement in the central and western provinces, and half to greater productivity—the farmers’ success in raising more crops per unit of land.This technological advance took many forms: one was the continual introduction from the south of earlier-ripening varieties of rice, which made possibledouble-cropping (the production of two harvests per year from one field). New crops such as corn (maize) and sweet potatoes as well as peanuts and tobacco were introduced from the Americas. Corn, for instance, can be grown on the dry soil and marginal hill land of North China, where it is used for food, fuel, and fodder and provides something like one-seventh of the food energy available in the area. The sweet potato, growing in sandy soil and providing more food energy per unit of land than other crops, became the main food of the poor in much of the South China rice area.Productivity in agriculture was also improved by capital investments, first of all in irrigation. From 1400 to 1900 the total of irrigated land seems to have increased almost three times. There was also a gain in farm tools, draft animals, and fertilizer, to say nothing of the population growth itself, which increased half again as fast as cultivated land area and so increased the ratio of human hands available per unit of land. Thus the rising population was fed by a more intensive agriculture, applying more labor and fertilizer to the land.Paragraph 1Increases in population have usually been accompanied (indeed facilitated) by an increase in trade. In the Western experience, commerce provided the conditions that allowed industrialization to get started, which in turn led to growth in science, technology, industry, transport, communications, social change, and the like that we group under the broad term of “development.” However, the massiveincrease in population that in Europe was at first attributed to industrialization starting in the eighteenth century occurred also and at the same period in China, even though there was no comparable industrialization.1. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information.A. Commerce, industrialization, and development are common features of the Westernexperience.B. Trade, industrialization, and development accelerated social change in Western societies.C. Trade and industrialization brought about development in Western societies.D. In Western societies, social change provided the conditions for development in a number of areas.2. The word “attributed” in the passage is closest in meaning toA. accustomedB. creditedC. exposedD. transformedParagraph 1 and Paragraph 2Increases in population have usually been accompanied (indeed facilitated) by an increase in trade. In the Western experience, commerce provided the conditions that allowed industrialization to get started, which in turn led to growth in science, technology, industry, transport, communications, social change, and the like that we group under the broad term of “development.” However, the massive increase in population that in Europe was at first attributed to industrialization starting in the eighteenth century occurred also and at the same period in China, even though there was no comparable industrialization.It is estimated that the Chinese population by 1600 was close to 150 million. The transition between the Ming and Qing dynasties (the seventeenth century) may have seen a decline, but from 1741 to 1851 the annual figures rose steadily andspectacularly, perhaps beginning with 143 million and ending with 432 million. If we accept these totals, we are confronted with a situation in which the Chinese population doubled in the 50 years from 1790 to 1840. If, with greater caution, we assume lower totals in the early eighteenth century and only 400 million in 1850, we still face a startling fact: something like a doubling of the vast Chinese population in the century before Western contact, foreign trade, and industrialization could have had much effect.3. According to paragraphs 1 and 2, which of the following is true of Chinese population growth between 1741and 1851?A. It coincided with the beginning of industrialization in China.B. It prompted speculation about the actual number of people living in China in previous centuries.C. It continued the steady growth in population of previous centuries.D. It occurred in the absence of certain conditions generally associated with population growth.4. According to paragraph2, the estimated population of China in the mid 1700s was ?A. 143 millionB. 150 millionC. 400 millionD. 432 millionParagraph 3To explain this sudden increase we cannot point to factors constant in Chinese society but must find conditions or a combination of factors that were newly effective in this period. Among these is the almost complete internal peace maintained under Manchu rule during the eighteenth century. There was also an increase in foreign trade through Guangzhou (southern China) and some improvement of transportation within the empire. Control of disease, like the checking of smallpox by variolation may have been important. But of most critical importance was the food supply.5. The word “constant ” in the passage is closest in meaning toB. dominantC. alteredD. unchanging6. Paragraph 3 supports all of the following statements about eighteenth-century Chinese society EXCEPT:A. It was troubled by frequent conflicts with foreign nations.B. It improved its transportation system.C. It experienced growth in international commerce.D. It managed to prevent the spread of certain diseases.Paragraph 4Confronted with a multitude of unreliable figures, economists have compared the population records with the aggregate data for cultivated land area and grain production in the six centuries since 1368. Assuming that China’s population in 1400 was about 80 million, the economist Dwight Perkins concludes that its growth to 700 million or more in the 1960s was made possible by a steady increase in the grain supply, which evidently grew five or six times between 1400 and 1800 and rose another 50 percent between 1800 and 1965. This increase of food supply was due perhaps half to the increase of cultivated area, particularly by migration and settlement in the central and western provinces, and half to greater productivity—the farmers’ success in raising more crops per unit of land.7. Paragra ph 4 answers which of the following questions about China’s population growth between 1400 and 1965?A. Which figures relating to China’s population growth were unreliable?B. Why did Dwight Perkins assume that China’s population in 1400 was about 80 million?C. Where in China did most of the population increase take place?D. What factors made China’s population growth between 1400 and 1965 possible?8. The word “aggregate” in the passage is closest in meaning toA. availableC. combinedD. recordedParagraph 5This technological advance took many forms: one was the continual introduction from the south of earlier-ripening varieties of rice, which made possibledouble-cropping (the production of two harvests per year from one field). New crops such as corn (maize) and sweet potatoes as well as peanuts and tobacco were introduced from the Americas. Corn, for instance, can be grown on the dry soil and marginal hill land of North China, where it is used for food, fuel, and fodder and provides something like one-seventh of the food energy available in the area. The sweet potato, growing in sandy soil and providing more food energy per unit of land than other crops, becamethe main food of the poor in much of the South China rice area.9. What can be inferred from paragraph 5 about the introduction of corn and sweet potatoes in China?A. These crops required much more care than other crops.B. These crops were consumed in limited quantities.C. These crops permitted an expansion of the area used for farming.D. These crops became available all over China within a short period of time. Paragraph 6Productivity in agriculture was also improved by capital investments, first of all in irrigation. From 1400 to 1900 the total of irrigated land seems to have increased almost three times. There was also a gain in farm tools, draft animals, and fertilizer, to say nothing of the population growth itself, which increased half again as fast as cultivated land area and so increased the ratio of human hands available per unit of land. Thus the rising population was fed by a more intensive agriculture, applying more labor and fertilizer to the land.10. The word “ratio” in the passage is closest in meaning toA. proportionB. availabilityC. importanceD. costParagraph 5 and Paragraph 6This technological advance took many forms: one was the continual introduction from the south of earlier-ripening varieties of rice, which made possibledouble-cropping (the production of two harvests per year from one field). New crops such as corn (maize) and sweet potatoes as well as peanuts and tobacco were introduced from the Americas. Corn, for instance, can be grown on the dry soil and marginal hill land of North China, where it is used for food, fuel, and fodder and provides something like one-seventh of the food energy available in the area. The sweet potato, growing in sandy soil and providing more food energy per unit of land than other crops, became the main food of the poor in much of the South China rice area.Productivity in agriculture was also improved by capital investments, first of all in irrigation. From 1400 to 1900 the total of irrigated land seems to have increased almost three times. There was also a gain in farm tools, draft animals, and fertilizer, to say nothing of the population growth itself, which increased half again as fast as cultivated land area and so increased the ratio of human hands available per unit of land. Thus the rising population was fed by a more intensive agriculture, applying more labor and fertilizer to the land.11. Which of the following is NOT mentioned in paragraphs 5 and 6 as one of the strategies the Chinese applied in agriculture?A. The growing of two crops on the same field during the same yearB. The improvement of systems to supply crops with waterC. The application of increasing amounts of fertilizer to the landD. The reduction in the amount of human labor per unit of land12. What purpose does paragraph 5 serve in the larger discussion about China’s population growth?A. It provides evidence of China’s emerging foreign trade relations.B. It illustrates how the Chinese increased their food supply.C. It provides evidence of why population growth was most noticeable in the south.D. It shows how foreign crops gradually gained greater acceptance in China.13.Look at the four squares [■] that indicate where the following sentence could be added to the passage.Other developments addressed the problems of dry and sandy areas unsuitable for growing China’s native crops.Where would the sentence best fit? Click on a square [■] to add the sentence to the passage.This technological advance took many forms: one was the continual introduction from the south of earlier-ripening varieties of rice, which made possibledouble-cropping (the production oftwo harvests per year from one field). ■ New crops such as corn (maize) and sweet potatoes as well as peanuts and tobacco were introduced from the Americas.■Corn, for instance, can be grown on the dry soil and marginal hill land of North China, where it is used for food, fuel, and fodder and provides something like one-seventh of the food energy available in the area. ■The sweet potato, growing in sandy soil and providing more food energy per unit of land than other crops, became the main food of the poor in much of the South China rice area. ■14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.Drag your answer choices to the spaces where they belong. To remove an answer choice, click on it.To review the passage, click VIEW TEXT.Over the centuries, China has experienced an extraordinary increase in its population.Answer ChoicesA. Understanding the exceptional increase in population in China requires giving up commonly held assumptions relative to the phenomenon of population growth.B. The economist Dwight Perkins applied a particular statistical method to determine the increase in China’s population.C. The sudden population growth in China started in its northern and southern provinces, and it spread rapidly to the central and western areas of the country.D. Improved transportation management and enhanced disease control contributed to China’s population explosion.E. The increase in China’s food supply, whic h affected population growth, was the result of technological developments in agriculture and capital investment.F. A steady increase in foreign trade since the 1400s provided the conditions necessary for large-scale agricultural development.Termite IngenuityTermites, social insects which live in colonies that, in some species, contain 2 million individuals or more, are often incorrectly referred to as white ants. But they are certainly not ants. Termites, unlike ants, have gradual metarnorphosis with only three life stage: egg, nymph, and adult. Ants and the other social members of their order, certain bees and wasps, have complete metarnorphosis in four life stages; egg, larva, pupa, and adult. The worker and soldier castes of social ants, bees, and wasps consist of only females, all daughters of a single queen that mated soon after she matured and thereafter never mated again. The worker and soldier castes of termites consist of both males and females, and the queen lives permanently with a male consort.Since termites are small and soft-bodied, they easily become desiccated and must live in moist places with a high relative humidity. They do best when the relative humidity in their nest is above 96 percent and the temperature is fairly high, an optimu m of about 79°F for temperate zone species and about 86°F for tropical species. Subterranean termites, the destructive species that occurs commonly throughout the eastern United States, attain these conditions by nesting in moist soil that is in contact with wood, their only food. The surrounding soil keeps the nest moist and tends to keep the temperature at a more or less favorable level.When it is cold in winter, subterranean termites move to burrows below the frost line.Some tropical termites are more ingenious engineers, constructing hugeabove-ground nests with built-in “air conditioning” that keeps the nest moist, at a constant temperature, and well supplied with oxygen. Among the most architecturally advanced of these termites is an African species, Macroternes natalensis. Renowned Swiss entomologist Martin Luscher described the mounds of this fungus-growing species as being as much as 16 feet tall, 16 feet in diameter at their base, and with a cement-like wall of soil mixed with termite saliva that is from 16 to 23 inches thick. The thick and dense wall of the mound insulates the interior microclimate from the variations in humidity and temperature of the outside atmosphere. Several narrow and relatively thin-walled ridges on the outside of the mound extend from near its base almost to its top.According to luscher, a medium-sized nest of Macrotermes has a population of about 2 million individuals. The metabolism of so many termites and of the fungus that they grow in their gardens as food helps keep the interior of the nest warm and supplies some moisture to the air in the nest. The termites saturate the atmosphere of the nest, bringing it to about 100 percent relative humidity,by carrying water up from the soil.But how is this well-insulated nest ventilated? Its many occupants require over 250 quarts of oxygen (more than 1,200 quarts of aire) per day. How can so much oxygen diffuse through the thick walls of the mound? Even the pores in the wall are filled with water, which almost stops the diffusion of gases. The answer lies in the construction of the nest. The interior consists of a large central core in which the fungus is grown, below it is “cellar” of empty space, above it is an “attic” of empty space, and within the ridges on the outer wall of the nest, there are many small tunnels that connect the cellar and the attic. The warm air in the fungus gardens rises through the nest up to the attic. From the attic, the air passes into the tunnels in the ridges and flows back down to the cellar. Gases, mainly oxygen coming in and carbon dioxide going out, easily diffuse into or out of the ridges, since their walls are thin and their surface area is large because they protrude farour from the wall of the mound. Thus air that flows down into the cellar through the ridges is relatively rich in oxygen, and has lost much of its carbon dioxide. It supplies the nest’s inhabitants with fresh oxygen as it rises through thefungus-growing area back up to the attic.Passage 1Termites, social insects which live in colonies that, in some species, contain 2 million individuals or more, are often incorrectly referred to as white ants. But they are certainly not ants. Termites, unlike ants, have gradual metarnorphosis with only three life stage: egg, nymph, and adult. Ants and the other social members of their order, certain bees and wasps, have complete metarnorphosis in four life stages; egg, larva, pupa, and adult. The worker and soldier castes of social ants, bees, and wasps consist of only females, all daughters of a single queen that mated soon after she matured and thereafter never mated again. The worker and soldier castes of termites consist of both males and females, and the queen lives permanently with a male consort.1. The author mentions “white ants” in the beginning of the passage in order toA. correct a common misunderstanding about termites’B. introduce the idea that termites only take the form of ants during certain life stagesC. argue that not all white ants are social insectsD. Illustrate the large variety of insect species that live in colonies2. According to paragraph 1, which of the following is true about termites?A. They are a kind of ant, but they are unlike most ants in many ways.B. They form colonies that grow at first and then gradually decline.C. Their workers are all males, and their soldiers are all females.D. They go through a life state called the nymph stage.Passage 2Since termites are small and soft-bodied, they easily become desiccated and must live in moist places with a high relative humidity. They do best when the relative humidity in their nest is above 96 percent and the temperature is fairly high, an optimum of about 79°F for temperate zone species and about 86°F for tropicalspecies. Subterranean termites, the destructive species that occurs commonly throughout the eastern United States, attain these conditions by nesting in moist soil that is in contact with wood, their only food. The surrounding soil keeps the nest moist and tends to keep the temperature at a more or less favorable level. When it is cold in winter, subterranean termites move to burrows below the frost line.3. According to paragraph 2, termites need to live in nests with high humidity in order toA. keep their food moistB. withstand cold temperatures in winterC. protect their bodies from drying outD. keep nest temperatures high4. The word “attain” in the passage is closet in meaning toA. achieveB. observeC. overcomeD. reflect5. The word “ingenious” in the passage is closest in meaning toA. determinedB. cleverC. ambitiousD. successfulPassage 3Some tropical termites are more ingenious engineers, constructing hugeabove-ground nests with built-in “air conditioning” that keeps the nest moist, at a constant temperature, and well supplied with oxygen. Among the most architecturally advanced of these termites is an African species, Macroternes natalensis. Renowned Swiss entomologist Martin Luscher described the mounds of this fungus-growing species as being as much as 16 feet tall, 16 feet in diameter at their base, and with a cement-like wall of soil mixed with termite saliva that is from 16 to 23 inches thick. The thick and dense wall of the mound insulates the interiormicroclimate from the variations in humidity and temperature of the outside atmosphere. Several narrow and relatively thin-walled ridges on the outside of the mound extend from near its base almost to its top.6. The word “ingenious” in the passage is closest in meaning toA. determinedB. cleverC. ambitiousD. successful7. The word “Renowned” in the passage is closest in meaning toA. SkilledB. FamousC. EarlyD. Revolutionary8. According to paragraph 3, the nests of some tropical termite species have the ability toA. insulate the microclimate in one part of the nest from the microclimate in another partB. Allow moist outside air to get inside regardless of whether it is warm or coolC. rapidly decrease the humidity inside when it gets hot outsideD. Provide the oxygen needed in the nestPassage 3 & 4Some tropical termites are more ingenious engineers, constructing hugeabove-ground nests with built-in “air conditioning” that keeps the nest moist, at a constant temperature, and well supplied with oxygen. Among the most architecturally advanced of these termites is an African species, Macroternes natalensis. Renowned Swiss entomologist Martin Luscher described the mounds of this fungus-growing species as being as much as 16 feet tall, 16 feet in diameter at their base, and with a cement-like wall of soil mixed with termite saliva that is from 16 to 23 inches thick. The thick and dense wall of the mound insulates the interior microclimate from the variations in humidity and temperature of the outsideatmosphere. Several narrow and relatively thin-walled ridges on the outside of the mound extend from near its base almost to its top.According to luscher, a medium-sized nest of Macrotermes has a population of about 2 million individuals. The metabolism of so many termites and of the fungus that they grow in their gardens as food helps keep the interior of the nest warm and supplies some moisture to the air in the nest. The termites saturate the atmosphere of the nest, bringing it to about 100 percent relative humidity, by carrying water up from the soil.9. According to paragraphs 3 and 4, all of the following are true of the nests of Macroternes natalensis EXCEPT:A. The walls are built out of soil mixed with termite saliva.B. The nests can be as tall as they are wide at the base.C. The interior of the nest is kept as humid as possible.D. The termites use hollow, thin-walled ridges to travel from one part of the nest to another.Passage 4According to luscher, a medium-sized nest of Macrotermes has a population of about 2 million individuals. The metabolism of so many termites and of the fungus that they grow in their gardens as food helps keep the interior of the nest warm and supplies some moisture to the air in the nest. The termites saturate the atmosphere of the nest, bringing it to about 100 percent relative humidity, by carrying water up from the soil.10. According to paragraph 4, how does the fungus grown by Macrotermes natalensis affect the environment of the nest?A. It carries water up from the soil into the interior.B. It dries the air by using up moisture as it grows.C. It heats and adds humidity to the inside of the nest.D. It lessens the effects of the metabolism of so many termites.Passage 5But how is this well-insulated nest ventilated? Its many occupants require over 250 quarts of oxygen (more than 1,200 quarts of aire) per day. How can so muchoxygen diffuse through the thick walls of the mound? Even the pores in the wall are filled with water, which almost stops the diffusion of gases. The answer lies in the construction of the nest. The interior consists of a large central core in which the fungus is grown, below it is “cellar” of empty space, above it is an “attic” of empty space, and within the ridges on the outer wall of the nest, there are many small tunnels that connect the cellar and the attic. The warm air in the fungus gardens rises through the nest up to the attic. From the attic, the air passes into the tunnels in the ridges and flows back down to the cellar. Gases, mainly oxygen coming in and carbon dioxide going out, easily diffuse into or out of the ridges, since their walls are thin and their surface area is large because they protrude far our from the wall of the mound. Thus air that flows down into the cellar through the ridges is relatively rich in oxygen, and has lost much of its carbon dioxide. It supplies the nest’s inhabitants with fresh oxygen as it rises through thefungus-growing area back up to the attic.11. According to paragraph 5, what does the thinness of the ridge walls make possible?A. The concentration of cool air in the cellarB. The construction of exceptionally long tunnelsC. The even distribution of oxygen from attic to cellarD. The diffusion of gases into and out of the ridges12. According to paragraph 5, what happens to the air in the ridge tunnels of Macrotermes natalensis nests?A. It becomes more humid as water vapor diffuses into the tunnels.B. It loses carbon dioxide and gains oxygen.C. It reaches the interior of the nest through pores in the walls.D. It moves in the same direction as the air in the center of the nest.13. Paragraph 5 supports which of the following about the air that flows through the interior of a Macrotermes natalensis mound?A. It has a higher concentration of oxygen in the cellar than in the attic.B. It is the same temperature as the air on the outside of the mound.C. It contains over 250 quarts of oxygen which circulate continuously.。

托福TPO阅读题目汇总

托福TPO阅读题目汇总
○ While stonewares and porcelains are found throughout most historical periods, religious sculpture is limited to the ancient period.
○ Religious sculpture was created in most periods, but its history is less clear than that of stonewares or porcelains
○ The fossil record suggests that there was an abrupt extinction of many plants and animals at the end of the Mesozoic era.
○ The historical development of religious sculpture is relatively unclear because religious sculptures sometimes resemble earthenware architectural ornaments.
2: Fladmark’s hypothesis received additional support form from the fact that the greatest diversity in native American languages occurs along the west coast of the Americas, suggesting that this region has been settled the longest.
○Because breathing is more rapid in NREM sleep than in REM sleep, breathing often becomes shallow.

托福备考托福阅读34套TPO样题+解析+译文22--3 The Allende Meteorite

托福备考托福阅读34套TPO样题+解析+译文22--3 The Allende Meteorite

托福考试 复习托福阅读TPO22(试题+答案+译文)第3篇:The Allende Meteorite托福阅读原文【1】Sometime after midnight on February 8,1969, a large, bright meteor entered Earth's atmosphere and broke into thousands of pieces, plummeted to the ground, and scattered over an area 50 miles long and 10 miles wide in the state of Chihuahua in Mexico. The first meteorite from this fall was found in the village of Pueblito de Allende. Altogether, roughly two tons of meteorite fragments were recovered, all of which bear the name Allende for the location of the first discovery.【2】Individual specimens of Allende are covered with a black, glassy crust that formed when their exteriors melted as they were slowed by Earth's atmosphere. When broken open, Allende stones are revealed to contain an assortment of small, distinctive objects, spherical or irregular in shape and embedded in a dark gray matrix (binding material), which were once constituents of the solar nebula—the interstellar cloud of gas and dust out of which our solar system was formed.【3】The Allende meteorite is classified as a chondrite. Chondrites take their name from the Greek word chondros—meaning "seed"—an allusion to their appearance as rocks containing tiny seeds. These seeds areactually chondrules: millimeter-sized melted droplets of silicate material that were cooled into spheres of glass and crystal. A few chondrules contain grains that survived the melting event, so these enigmatic chondrules must have formed when compact masses of nebular dust were fused at high temperatures—approaching 1,700 degrees Celsius—and then cooled before these surviving grains could melt. Study of the textures of chondrules confirms that they cooled rather quickly, in times measured in minutes or hours, so the heating events that formed them must have been localized. It seems very unlikely that large portions of the nebula were heated to such extreme temperatures, and huge nebula areas could not possibly have lost heat so fast. Chondrules must have been melted in small pockets of the nebula that were able to lose heat rapidly. The origin of these peculiar glassy spheres remains an enigma. 【4】Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules. They are composed of minerals uncommon on Earth, all rich in calcium, aluminum, and titanium, the most refractory (resistant to melting) of the major elements in the nebula. The same minerals that occur in refractory inclusions are believed to be the earliest-formed substances to have condensed out of the solar nebula. However, studies of the textures of inclusions reveal that the order in which the minerals appeared in the inclusions varies from inclusion to inclusion, and often does not matchthe theoretical condensation sequence for those metals.【5】Chondrules and inclusions in Allende are held together by the chondrite matrix, a mixture of fine-grained, mostly silicate minerals that also includes grains of iron metal and iron sulfide. At one time it was thought that these matrix grains might be pristine nebular dust, the sort of stuff from which chondrules and inclusions were made. However, detailed studies of the chondrite matrix suggest that much of it, too, has been formed by condensation or melting in the nebula, although minute amounts of surviving interstellar dust are mixed with the processed materials.【6】All these diverse constituents are aggregated together to form chondritic meteorites, like Allende, that have chemical compositions much like that of the Sun. To compare the compositions of a meteorite and the Sun, it is necessary that we use ratios of elements rather than simply the abundances of atoms. After all, the Sun has many more atoms of any element, say iron, than does a meteorite specimen, but the ratios of iron to silicon in the two kinds of matter might be comparable. The compositional similarity is striking. The major difference is that Allende is depleted in the most volatile elements, like hydrogen, carbon, oxygen, nitrogen, and the noble gases, relative to the Sun. These are the elements that tend to form gases even at very low temperatures. We might think of chondrites as samples of distilled Sun, a sort of solar sludge from whichonly gases have been removed. Since practically all the solar system's mass resides in the Sun, this similarity in chemistry means that chondrites have average solar system composition, except for the most volatile elements; they are truly lumps of nebular matter, probably similar in composition to the matter from which planets were assembled.托福阅读试题1.The word "location" in paragraph 1 is closest in meaning toA.sight.B.sake.C.success.D.place.2.Which of the following can be inferred from paragraph 1 about the large meteor that entered Earths atmosphere on February 8, 1969?A.It was almost ten miles wide.B.It was the biggest meteor ever to hit Mexico.C.It weighed more than two tons.D.It broke into more pieces than most meteors do.3.Which of the sentences below best expresses the essential information in the highlighted sentence in the passage (paragraph 2)? Incorrect choices change the meaning in important ways or leave out essentialinformation.A.Allende meteorites were formed when constituents of the interstellar cloud of gas and dust got trapped inside small, roughly spherical objects and these objects became bound together in a dark gray matrix.B.Inside Allende meteorites is a dark gray matrix that binds together small spherical or irregular objects formed from the interstellar cloud of gas and dust out of which the solar system was made.C.By breaking open Allende meteorites, scientists were able to find out what the solar nebula was made of.D.Allende meteorites were filled with material formed almost entirelyfrom interstellar gas and dust.4.The word "allusion" in paragraph 3 is closest in meaning toA.addition.B.modification.C.resemblance.D.reference.5.The word "enigmatic" in paragraph 3 is closest in meaning toA.dangerous.B.mysterious.C.interesting.D.surprising.6.According to paragraph 3, what does the presence of grains insidesome of the chondrules indicate?A.The chondrules were formed of silicate material.B.The chondrules were formed of silicate material.C.The grains were formed in huge areas of the solar nebulaD.The grains were formed after the chondrules were fused together into chondrites.7.According to paragraph 4, all of the following are true about the minerals found in the refractory inclusions EXCEPT:A.These minerals are among the most resistant to melting of all the major elements in the solar nebula.B.These minerals are believed to be some of the first elements to have condensed out of the solar nebula.C.These minerals are among the least commonly found elements on Earth.D.These elements occur in the order that scientists would have predicted.8.The word "pristine" in paragraph 5 is closest in meaning toA.pure.B.solid.C.ordinary.D.trapped.9.According to paragraph 5, which of the following is indicated by studies of the mixture holding the inclusions together?rge amounts of this material were formed by condensation or melting in the nebula.B.This material contains more iron and iron sulfide than had previously been thought.C.This material is very similar to the material from which the refractory inclusions are made.D.The grains in this material are made from the same elements as chondrules are.10.In paragraph 6, why does the author mention that "the Sun has many more atoms of any element, say iron, than does a meteorite specimen"?A.To show how difficult it is to compare the composition of a meteorite with that of the Sun.B.To explain why a comparison of the compositions of a meteorite and of the Sun has to be done in terms of ratios of elements.C.To identify the most common element in both the Sun and meteorite specimens.D.To emphasize how much largerthe Sun is than any meteorite specimen is.11.According to paragraph 6, the composition of chondritic meteorites differs from the composition of the Sun primarily inA.containing nebular matter.B.containing many fewer atoms of iron.C.the relative amount of volatile elements.D.the ratio of iron to silicon.12.According to paragraph 6, what is the significance of the similarity in composition between chondrites and the Sun?A.It indicates what the matter from which planets were formed was probably like.B.It may explain howthe Sun originally developed.C.It helps scientists estimate the variations in the chemical composition of different meteors.D.It suggests that most meteorites may contain large quantities of volatile elements.13. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence best fit? Click on a square [■] to add the sentence to the passage. It is therefore still unclear if all inclusions were formed in the same way.Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules. ■【A】They are composed of minerals uncommon on Earth, all rich in calcium, aluminum, and titanium, the most refractory (resistant to melting) of the major elements in the nebula. ■【B】The same minerals that occur in refractory inclusions are believed to be the earliest-formed substances to have condensed out of the solar nebula. ■【C】However, studies of thetextures of inclusions reveal that the order in which the minerals appeared in the inclusions varies from inclusion to inclusion, and often does not match the theoretical condensation sequence for those metals. ■【D】14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.Studies of the Allende meteorite provided information about the composition of chondritic meteorites and their possible origin.A.When Allende entered Earth's atmosphere, it broke into thousands of pieces called chondrites because they look like glassy, black seeds.B.The mineral content of chondrules suggests that they were probably formed in isolated regions of the nebula that remained much hotter than the rest.C.The mineral content of chondrules suggests that they were probably formed in isolated regions of the nebula that remained much hotter than the rest.D.Irregularly shaped inclusions in Allende are composed of minerals that are resistant to melting and are believed to be the earlest minerals tohave condensed out of the nebula.E.The matrix that holds the chondrules and inclusions together in Allende consists mainly of grains of nebular dust that were trapped inside the meteor before they could be melted.F.Except for being depleted in volatile elements, chondritic meteorites are probably very similar in composition to the matter from which planets were assembled.托福阅读答案1.location位置,所以正确答案是D的place。

TPO阅读1-34汇总【含原文翻译解析答案】

TPO阅读1-34汇总【含原文翻译解析答案】

TPO阅读1-34汇总【含原文翻译解析答案】TPO1-34综合写作TPO 1 (1)1. 阅读部分 (1)2. 听力部分 (3)3. 范文赏析 (5)TPO 2 (7)1. 阅读部分 (7)2. 听力部分 (10)3. 范文赏析 (12)TPO 3 (14)1. 阅读部分 (14)2. 听力部分 (16)3. 范文赏析 (17)TPO4 (19)1. 阅读部分 (19)2. 听力部分 (20)3. 范文赏析 (22)TPO5 (24)1. 阅读部分 (24)2. 听力部分 (24)3. 范文赏析 (24)TPO6 (25)1. 阅读部分 (25)2. 听力部分 (25)3. 范文赏析 (25)TPO7 (26)1. 阅读部分 (26)2. 听力部分 (26)3. 范文赏析 (26) TPO8 (27)1. 阅读部分 (27)2. 听力部分 (27)3. 范文赏析 (27) TPO9 (28)1. 阅读部分 (28)2. 听力部分 (28)3. 范文赏析 (28) TPO10 (29)1. 阅读部分 (29)2. 听力部分 (29)3. 范文赏析 (29) TPO11 (30) 1. 阅读部分 (30) 3. 范文赏析 (30) TPO12 (31)1. 阅读部分 (31)2. 听力部分 (32)3. 范文赏析 (34) TPO13 (35)1. 阅读部分 (35)2. 听力部分 (36)3. 范文赏析 (38) TPO14 (39)1. 阅读部分 (39)2. 听力部分 (40)3. 范文赏析 (41) TPO15 (43) 1. 阅读部分 (43)3. 范文赏析 (45) TPO16 (47)1. 阅读部分 (47)2. 听力部分 (48)3. 范文赏析 (49) TPO17 (51)1. 阅读部分 (51)2. 听力部分 (52)3. 范文赏析 (54) TPO18 (55)1. 阅读部分 (55)2. 听力部分 (55)3. 范文赏析 (55) TPO19 (56)1. 阅读部分 (56)2. 听力部分 (56)3. 范文赏析 (56) TPO20 (57)1. 阅读部分 (57)2. 听力部分 (57)3. 范文赏析 (57) TPO21 (58)1. 阅读部分 (58)2. 听力部分 (58)3. 范文赏析 (58) TPO22 (59) 1. 阅读部分 (59) 3. 范文赏析 (59) TPO23 (60)2. 听力部分 (60)3. 范文赏析 (60) TPO24 (61)1. 阅读部分 (61)2. 听力部分 (61)3. 范文赏析 (61) TPO25 (62)1. 阅读部分 (62)2. 听力部分 (62)3. 范文赏析 (62) TPO26 (63)1. 阅读部分 (63)2. 听力部分 (63)3. 范文赏析 (63) TPO27 (64)1. 阅读部分 (64)2. 听力部分 (64)3. 范文赏析 (64) TPO28 (65)1. 阅读部分 (65)2. 听力部分 (65)3. 范文赏析 (65) TPO29 (66)1. 阅读部分 (66)2. 听力部分 (66)3. 范文赏析 (66) TPO30 (67)1. 阅读部分 (67)2. 听力部分 (67)3. 范文赏析 (67)TPO31 (68)1. 阅读部分 (68)2. 听力部分 (68)3. 范文赏析 (68)TPO32 (69)1. 阅读部分 (69)2. 听力部分 (70)3. 范文赏析 (70)TPO33 (71)1. 阅读部分 (71)3. 范文赏析 (71)TPO34 (72)1. 阅读部分 (72)2. 听力部分 (73)3. 范文赏析 (74)TPO 11. 阅读部分In the United States, employees typically work five days a week for eight hours each day. However, many employees want to work a four-day week and are willing to accept less pay in order to do so. A mandatory policy requiring companies to offer their employees the option of working a four-day workweek for four-fifths (80 percent) of their normal pay would benefit the economy as a whole as well as the individual companies and the employees who decided to take the option.在美国,职员一般执行的一周五天,每天八小时工作制。

TPO托福阅读真题答案及解析

TPO托福阅读真题答案及解析

TPO托福阅读真题答案及解析TPO托福阅读真题答案及解析托福阅读真题:The Long-Term Stability of EcosystemsPlant communities assemble themselves fle某ibly, and their particular structure depends on the specific history of the area. Ecologists use the term “succession〞 to refer to the changes that happen in plant communities and ecosystems over time. The first community in a succession is called a pioneer community, while the long-lived community at the end of succession is called a clima某community. Pioneer and successional plant communities are said to change over periods from 1 to 500 years. These changes—in plant numbers and the mi某 of species—are cumulative. Clima某 communities themselves change but over periods of time greater than about 500 years.An ecologist who studies a pond today may well find it relatively unchanged in a year’s time. Individual fish may be replaced, but the number of fish will tend to be the same from one year to the ne某t. We can say that the properties of an ecosystem are more stable than the individual organisms that compose the ecosystem.At one time, ecologists believed that species diversity made ecosystems stable. They believed that the greater the diversity the more stable the ecosystem. Support for this idea came from the observation that long-lasting clima某 communities usually have more comple某 food webs and more species diversity than pioneer communities. Ecologists concluded that the apparent stability of clima某 ecosystems depended on their comple某ity. To take an e某treme e某ample, farmlands dominated by a single crop are so unstablethat one year of bad weather or the invasion of a single pest can destroy the entire crop. In contrast, a comple某 clima某 community, such as a temperate forest, will tolerate considerable damage from weather to pests.The question of ecosystem stability is complicated, however. The first problem is that ecologists do not all agree what “stability〞means. Stability can be defined as simply lack of change. In that case, the clima某 community would be considered the most stable, since, by definition, it changes the least over time. Alternatively, stability can be defined as the speed with which an ecosystem returns to a particular form following a major disturbance, such as a fire. This kind of stability is also called resilience. In that case, clima 某 communities would be the most fragile and the least stable, since they can require hundreds of years to return to the clima某 state. Even the kind of stability defined as simple lack of change is not always associated with ma某imum diversity. At least in temperate zones, ma某imum diversity is often found in mid-successional stages, not in the clima某 community. Once a redwood forest matures, for e某ample, the kinds of species and the number of individuals growing on the forest floor are reduced. In general, diversity, by itself, does not ensure stability. Mathematical models of ecosystems likewise suggest that diversity does not guarantee ecosystem stability—just the opposite, in fact. A more complicated system is, in general, more likely than a simple system to break down. A fifteen-speed racing bicycle is more likely to break down than a child’s tricycle.Ecologists are especially interested to know what factors contribute to the resilience of communities because clima某communities all over the world are being severely damaged ordestroyed by human activities. The destruction caused by the volcanic e某plosion of Mount St. Helens, in the northwestern United States, for e某ample, pales in comparison to the destruction caused by humans. We need to know what aspects of a community are most important to the community’s resistance to destruction, as well as its recovery.Many ecologists now think that the relative long-term stability of clima某 communities comes not from diversity but from the “patchiness〞 of the environment, an environment that varies from place to place supports more kinds of organisms than an environment that is uniform. A local population that goes e某tinct is quickly replaced by immigrants from an adjacent community. Even if the new population is of a different species, it can appro某imately fill the niche vacated by the e某tinct population and keep the food web intact.Paragraph 1: Plant communities assemble themselves fle某ibly, and their particular structure depends on the specific history of the area. Ecologists use the term “succession〞 to refer to the changes that happen in plant communities and ecosystems over time. The first community in a succession is called a pioneer community, while the long-lived community at the end of succession is called a clima某community. Pioneer and successional plant communities are said to change over periods from 1 to 500 years. These changes—in plant numbers and the mi某 of species—are cumulative. Clima某 communities themselves change but over periods of time greater than about 500 years.TPO托福阅读题目1. The word “particular〞 in the passage is closest in meaningto○Natural○Final○Specific○Comple某2. According to paragraph 1, which of the following is NOT true of clima某 communities?○They occur at the end of a succession.○They last longer than any other type of community.○The numbers of plants in them and the mi某 of species do not change.○They re main stable for at least 500 years at a time.Paragraph 2: An ecologist who studies a pond today may well find it relatively unchanged in a year’s time. Individual fish may be replaced, but the number of fish will tend to be the same from one year to the ne某t. We can say that the properties of an ecosystem are more stable than the individual organisms that compose the ecosystem.3. According to paragraph 2, which of the following principles of ecosystems can be learned by studying a pond?○Ec osystem properties change more slowly than individuals in the system.○The stability of an ecosystem tends to change as individuals are replaced.○Individual organisms are stable from one year to the ne某t.○A change in the members of an orga nism does not affect an ecosystem’s propertiesParagraph 3: At one time, ecologists believed that speciesdiversity made ecosystems stable. They believed that the greater the diversity the more stable the ecosystem. Support for this idea came from the observation that long-lasting clima某 communities usually have more comple某 food webs and more species diversity than pioneer communities. Ecologists concluded that the apparent stability of clima某 ecosystems depended on their comple某ity. To take an e某treme e某ample, farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop. In contrast, a comple某 clima某 community, such as a temperate forest, will tolerate considerable damage from weather of pests.4. According to paragraph 3, ecologists once believed that which of the following illustrated the most stable ecosystems?○Pioneer communities○Clima某 communities○Single-crop farmlands○Successional plant communitiesParagraph 4: The question of ecosystem stability is complicated, however. The first problem is that ecologists do not all agree what “stability〞 means. Stability can be defined as simply lack of change. In that case, the clima某 community would be considered the most stable, since, by definition, it changes the least over time. Alternatively, stability can be defined as the speed with which an ecosystem returns to a particular form following a major disturbance, such as a fire. This kind of stability is also called resilience. In that case, clima某 communities would be the most fragile and the least stable, since they can require hundreds of years to return to the clima某 state.5. According to paragraph 4, why is the question of ecosystem stability complicated?○The reasons for ecosystem change are not always clear.○Ecologists often confuse the word “stability〞 with the word “resilience.〞○The e某act meaning of the word “stability〞 is debated by ecologists.○There are m any different answers to ecological questions.6. According to paragraph 4, which of the following is true of clima某 communities?○They are more resilient than pioneer communities.○They can be considered both the most and the least stable communities.○They are stable because they recover quickly after major disturbances.○They are the most resilient communities because they change the least over time.Paragraph 5: Even the kind of stability defined as simple lack of change is not always associated with ma某imum diversity. At least in temperate zones, ma某imum diversity is often found in mid-successional stages, not in the clima某 community. Once a redwood forest matures, for e某ample, the kinds of species and the number of individuals growing on the forest floor are reduced. In general, diversity, by itself, does not ensure stability. Mathematical models of ecosystems likewise suggest that diversity does not guarantee ecosystem stability—just the opposite, in fact. A more complicated system is, in general, more likely than a simple system to break down. (A fifteen-speed racing bicycle is more likely to break downthan a child’s tricycle.)7. Which of the following can be inferred from paragraph 5 about redwood forests?○Th ey become less stable as they mature.○They support many species when they reach clima某.○They are found in temperate zones.○They have reduced diversity during mid-successional stages.8. The word “guarantee〞 in the passage is closest in meaning to○Increase○Ensure○Favor○Complicate9. In paragraph 5, why does the author provide the informationthat “(A fifteen-speed racing bicycle is more likely to break down than a child’s tricycle)〞?○To illustrate a g eneral principle about the stability of systems by using an everyday e某ample○To demonstrate that an understanding of stability in ecosystems can be applied to help understand stability in other situations ○To make a comparison that supports the claim that, in general, stability increases with diversity○To provide an e某ample that contradicts mathematical models of ecosystemsParagraph 6: Ecologists are especially interested to know what factors contribute to the resilience of communities because clima某communities all over the world are being severely damaged ordestroyed by human activities. The destruction caused by the volcanic e某plosion of Mount St. Helens, in the northwestern United States,for e某ample, pales in comparison to the destruction caused by humans. We need to know what aspects of a community are most important to the community’s resistance to destruction, as well as its recovery.10. The word “pales〞 in the passage is closest in meaning to○Increases proportional ly○Differs○Loses significance○Is commonParagraph 7:Many ecologists now think that the relative long-term stability of clima某 communities comes not from diversity but from the “patchiness〞 of the environment, an environment that varies from place to place supports more kinds of organisms than an environment that is uniform. A local population that goes e某tinct is quickly replaced by immigrants from an adjacent community. Even if the new population is of a different species, it can appro某imately fill the niche vacated by the e某tinct population and keep the food web intact.11.Which of the sentences below best e某presses the essential information in the highlighted sentence in the passage? Incurred choices change the meaning in important ways or leave out essential information.○Ecologists now think that the stability of an environment is a result of diversity rather than patchiness.○Patchy environments that vary from place to place do not often have high species diversity.○Uniform environments cannot be clima某 communities becausethey do not support as many types of organisms as patchyenvironments.○A patchy environment is thought to increase stability becauseit is able to support a wide variety of organisms.12.The word “adjacent〞 in the passage is closest in meaning to○Foreign○Stable○Fluid○NeighboringParagraph 6: Ecologists are especially interested to know what factors contribute to the resilience of communities because clima某communities all over the world are being severely damaged or destroyed by human activities. The destruction caused by the volcanic e某plosion of Mount St. Helens, in the northwestern United States, for e某ample, pales in comparison to the destruction caused by humans. We need to know what aspects of a community are most important to the community’s resistance to destruction, as well as its recovery.13.Look at the four squares [ ] that indicate where the following sentence could be added to the passage.In fact, damage to the environment by humans is often much more severe than damage by natural events and processes.Where would the sentence best fit? Click on a square to add the sentence to the passage.14.Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that e某press the most important ideas in the passage. Some sentences do not belong in the summary because they e某press ideas that are not presented in the passage or are minorideas in the passage. This question is worth 2 points.The process of succession and the stability of a clima某community can change over time.Answer choices○The changes that occur in an ecosystem fro m the pioneer to the clima某 community can be seen in one human generation.○A high degree of species diversity does not always result in a stable ecosystem.○The level of resilience in a plant community contributes to its long-term stability.○Ecologists agree that clima某 communities are the most stable types of ecosystems.○Disagreements over the meaning of the term “stability〞 make it difficult to identify the most stable ecosystems.○The resilience of clima某 communities makes them resistant to destruction caused by humans.托福阅读真题参考答案:1. ○32. ○33. ○14. ○25. ○36. ○27.○38. ○29. ○110. ○311. ○412. ○413. ○2 14. ○2 3 5托福阅读真题译文:生态系统的长期稳定植物群体可以自由地聚集,他们特殊的结构取决于聚集区域的具体历史。

历年托福考试阅读真题汇总含答案

历年托福考试阅读真题汇总含答案

0308托福试题阅读(55minutes)Question 1-11If food is allowed to stand for some time, it putrefies .When the putrefied materialis examined microscopically ,it is found to be teeming with bacteria. Where do thesebacteria come from , since they are not seen in fresh food? Even until the mid-nineteenthcentury, many people believed that such microorganisms originated by spontaneous(5 )generation ,a hypothetical process by which living organisms develop from nonlivingmatter.The most powerful opponent of the theory of spontaneous generation was the French chemist and microbiologist Louis Pasteur(1822-1895).Pasteur showed that structurespresent in air closely resemble the microorganisms seen in putrefying materials .He did(10) this by passing air through guncotton filters, the fibers of which stop solid particles. Afterthe guncotton was dissolved in a mixture of alcohol and ether, the particles that it hadtrapped fell to the bottom of the liquid and were examined on a microscope slide .Pasteurfound that in ordinary air these exists a variety of solid structures ranging in size from0.01 mm to more than 1.0 mm .Many of these bodies resembledthe reproductive(15)structures of common molds, single-celled animals, and various other microbial cells .As many as 20 to 30 of them were found in fifteen liters of ordinary air ,and they couldnot be distinguished from the organisms found in much larger numbers in putrefying materials .Pasteur concluded that the organisms found in putrefying materials originatedfrom the organized bodies present in the air .He postulated thatthese bodies are constantly(20)being deposited on all objects.Pasteur showed that if a nutrient solution was sealed in a glass flask and heated toboiling to destroy all the living organisms contaminating it, it never putrefied .The proponents of spontaneous generation declared that fresh air was necessary forspontaneous generation and that the air inside the sealed flask was affected in some way(25)by heating so that it would no longer support spontaneousgeneration. Pasteur constructed a swan-necked flask in which putrefying materials could he heated to boiling, but aircould reenter. The bends in the neck prevented microorganisms from getting in the flask.. Material sterilized in such a flask did not putrefy.1,What does the passage mainly discuss?(a)Pasteur’s influence on the development of the microscope.(b)The origin of the theory of spontaneous generation .(c)The effects of pasteurization on food.(d)Pasteur’s argument agai nst the theory of spontaneous generation . 2,The phrase “teeming with ”in line 2 is closest in meaning to(a)full of(b)developing into(c)resistant to(d)hurt by3,Which of the following questions did the theory of spontaneous generation attempt to answer?(a)What is the origin of the living organisms are seen on some food?(b)How many types of organisms can be found on food?(c)What is the most effective way to prepare living organisms for microscopic examination?(d)How long can food stand before it putrefies?4,The word “resemble” in line 9 is closest in meaning to(a)benefit from(b)appear similar to(c)join together with(d)grow from5,The purpose of the “guncotton” mentioned in paragraph 2 was to(a)trap particles for analysis(b)slow the process of putrefaction(c)increase the airflow to the microscopic slide(d)aid the mixing of alcohol and ether6,The author mention “1.0mm”in line 14 in describing the(a)thickness of a layer of organisms that was deposited on an object(b)diameter of the fibers that were in the guncotton filters(c)thickness of the microscope slides that were used(d)size of the particles that that were collected7.The word “postulated”in line 19 is closest in meaning to(a)analyzed(b)doubted(c)persuaded(d)suggested8.The objects that Pasteut removed from the air in his experiment were remarkable because they were(a)primarily single-celled organisms(b)no different from objects found in putrefying materials(c)fairly rare(d)able to live in a mixture of alcohol and ether9.The word “it” in line 22 refers to(a)a nutrient solution(b)a glass flask(c)boiling(d)spontaneous generation10.According to paragraph 3,proponents of spontaneous generation believed that which of the following was important for the process to succeed ?(a)A sealed container(b)Fresh air(d)The presence of nutrients11.It can be inferred from paragraph 3 that Pasteur employed a swam-necked flask to(a)store sterilized liquids for use in future experiments(b)prevent heat from building up in a solution(c)disprove a criticism of his conclusions(d)estimate the number of organisms in a liter of airQuestions 12-20In the early decades of the United States ,the agrarian movement promoted the farmeras society’s hero. In the minds of agrarian thinkers and writers ,the farmer was a person on whose well-being the health of the new country depended .The period between theRevolution, which ended in 1783,and the Civil War ,which ended in 1865 ,was the age of(5 )the farmer in the United States .Agrarian philosophers ,represented most eloquently byThomas Jefferson, celebrated farmers extravagantly for their supposed centrality in a goodsociety, their political virtue ,and their Superior morality .And virtually all policy makers, whether they subscribed to the tenets of the philosophy held by Jefferson or not, recognized agriculture as the key component of the American economy .Consequently ,government at(10)all levels worked to encourage farmers as a social group and agriculture as economicenterprise.Both the national and state governments developed transportation infrastructure,building canals, roads, bridges, and railroads ,deepening harbors ,and removing obstructions from navigable streams .The national government imported plant and animal varieties and(15) launched exploring expeditions into prospective farmlands in the West .In addition ,government trade policies facilitated the exporting of agriculturalFor their part ,farmers seemed to meet the social expectations agrarian philosophershad for them ,as their broader horizons and greater self-respect, both products of the Revolution ,were reflected to some degree in their behavior .Farmers seemed to become(20)more scientific ,joining agricultural societies and reading the farm newspapers that sprangup throughout the country .They began using improved implements, tried new crops andpure animal breeds , and became more receptive to modern theories of soil improvement .They also responded to inducements by national and state governments .Farmersstreamed to the West ,filling frontier lands with stunning rapidity .But farmers responded(25)less to the expectations of agrarians and governmentinducements than to growing market opportunities .European demand for food from the United States seemed insatiable . War, industrialization , and urbanization all kept demand high in Europe . United States citiesand industries grew as well; even industries not directly related to farming thrived becauseof the market, money ,and labor that agriculture provided .12.What does the passage mainly discuss?(a)The agrarian philosophy of Thomas Jefferson(b)The role of the national government in the development of agriculture(c)Improvements in farming techniques(d)The impact of the increased importance of the farmer13.The word “depended” in line 3 is closest in meaning to(a)improved(b)relied(c)demanded(d)explained14.The author mentions Thomas Jefferson in paragraph 1 as an(a)a leader during the Revolution(b)an inventor of new farming techniques(c)a philosopher who believed farmers were essential to the creation of a good society(d)a farmer who guided the agrarian movement toward an emphasis on economic development15.The phrase “subscribed to” in line 8 is closest in meaning to(a)contributed to(b)agreed with(c)thought about(d)expanded on16.Which of the following statements is supported by the information in paragraph 1?(a)All government policy makers accepted Jefferson’s views of agriculture and farmers.(b)Agricultural production declined between 1783 and 1861.(c)The majority of farmers worked for the government.(d)Agriculture was a vital part of the nation’s economy.17.According to the passage , the national and state governments did all of the following EXCEPT(a)build roads(b)import new plant varieties(c)give farmers money for their crops(d)develop policies that helped farmers export their products18.All of the following are mentioned as examples of farmers’ meeting the expectations of agrarian philosophers EXCEPT(a)obtaining information from farm newspapers(b)accumulating personal wealth(c)planting new crops(d)becoming more scientific19.The word “stunning” in line 24 is closest in meaning to(a)predictable(b)impressive(c)famous(d)gradual20.Which of the following statements is best supported by paragraph 4?(a)Agricultural development contributed to development in other parts of the economy.(b)European agricultural products were of a higher quality than those produced in the United States.(c)The growing settlement of the West led to a decrease in agricultural production.(d)Farmers were influenced more by government policies than by market opportunities.Question 21-29The wide variety of climates in North America has helped spawn a complex pattern ofsoil regions. In general, the realm’s soils also reflect the broad environmental partitioninginto “humid America” and “arid America.” Where annual precipitation exceeds 20 inches(50 centimeters),soils in humid areas tend to be acidic in chemical content, Since crops(5 ) do best in soils that are neither acidic(higher in acid content) noralkaline(higher in salt content).fertilization is necessary to achieve the desired level of neutrality between thetwo. A rid America’s soils are typically alkaline and must be fertilized back towardneutrality by adding acidic compounds. Although many of these dryland soils, particularlyin the Great Plains, are quite fertile, European settlers learned over a century ago that(10)water is the main missing ingredient in achieving their agricultural potential. In the1970’s, certain irrigation methods were perfected and finally provided a real opportunityto expand more intensive farming west from the Central Lowland into the drier portionsof the Great Plains. Glaciation also enhanced the rich legacy of fertile soils in the centralUnited States,both from the deposition of mineral-rich glacial debris left by meltwater(15)and from thick layers of fine wind-blown glacial material, called loess, in and around themiddle Mississippi Valley.Natural vegetation patterns could be displayed on a map of North America, but theenormous human modification of the North American environment in modern times hasall but reduced this regionalization scheme to the level of the hypothetical. Nonetheless,(20)the humid America-arid America dichotomy is still a valid generalization: the naturalvegetation of areas receiving more than 20 inches of water yearly is forest, whereas thedrier climates give rise to a grassland cover. The forests of North America tent to makea broad transition by latitude. In the Canadian North, needle-leaf forests dominate, butthese coniferous trees become mixed with broadleaf deciduous trees as one crosses the(25)border into the Northeast United States. As one proceedstoward the Southeast, broadleaf vegetation becomes dominant.Arid America mostly consists of short-grass prairies orstepper. The only areas of true desert are in the Southwest.21 What aspect of North America does the passage mainly discuss?(A) The wide variety of climates(B) S oil types and vegetation patterns(C) I mproved irrigation methods and the expansion of agriculture(D) The change in precipitation patterns22 The word “spawn ” in line 1 is closest in meaning to(A) distinguish(B) e liminate(C) p rotect(D) create23 The word “partitioning” in line 2 is closest in meaning to(A) division(B) m odification(C) o pening(D) circulating24 According to the passage, acidic soils tent to be associated with(A) a high salt content(B) a n increase in farming(C) l arge amounts of rain(D) glacial meltwater25 The word “enhanced” in line 13 is closest in meaning to(A) implied(B) i ncreased(C) i ndicated(D) informed26 How did glacial meltdown affect the soil in North America?(A) It redistributed the soil types(B) I t added salt to the soil(C) I t made the soil more neutral in content(D) It added minerals to the soil27 The phrase “this regionalization scheme” in line 19 refers to the(A) movements of glacial deposits(B) p atterns of natural vegetation(C) h uman modification of the North American environment(D) distinction between humid America and arid America28 The word “transition” in line 23 is closest in meaning to(A) elevation(B) c hange(C) a dvantage(D) condition29 The passage supports which of the following statements?(A) Arid America is not necessarily characterized by the presenceof deserts(B) M ost of Canada and the northeastern United States consists ofshort-grass prairies wherever natural vegetation has not been modified by humans(C) T he accumulation of loess is primarily the result of irrigation(D) Glaciation removed the fertile layer of soil from much of theMississippi ValleyQuestions 30-40Most sources of illumination generate light over an appreciable period, and indeed ifan object is lit for a very brief time(less that 1/25 second), the human eye will not reactin time to see the object. A photographic emulsion---that is, a light-sensitive coating on photographic film, paper, or glass---will, however, record much shorter bursts of light. A(5 ) photographic flash can therefore be used to capture high-speed movement on film as wellas to correct deficiencies of the normal surrounding lighting.Photoflash is now generated electronically, but the earliest form, first used in 1864, was a paper bag containingmagnesium wire and some oxygen-rich substance, such as potassium chlorate. When thebag was ignited, the metal burned with an intense flash. A contemporary observer reported(10) that “this quite unsafe device seems to have done nothing worse that engulf the room indense smoke and lead to pictures of dubious quality and odd pose s.”The evolution of the photoflash was slow, flashbulbs, containing fine wire made of ametal, such as magnesium or aluminum, capable of being ignited in an atmosphere of pure oxygen at low pressure, were introduced only in the 1920’s. In the e arliest type, the metal (15) was separated from the oxygen by a thin glass bulb. The flash was fired by piercing thebulb and allowing the oxygen to come into contact with the metal, which ignitedspontaneously. Later bulbs were fired by an electric battery, which heated the wire bypassing a small current through it. Other combinations, such as the pairing of oxygendifluoride with zirconium, have also been used. In each case enough energy is given out to(20) heat the oxidizable metal momentarily to a white-hot emissionof visible light. The smoke particles are so small that they cool rapidly; but since they are white, they contribute to the brilliance by reflecting the light from their still-glowing neighbors. A slightly bigger formof the metal will burn for a longer time.30 What does the passage mainly discuss?(A) The history of the photoflash(B) T heories about how the eye reacts to light(C) T he technology of modern photography(D) The dangers of using the early photoflash31 According to the passage,1/25 second is the minimum amount of time required for the(A) recording of an image on film(B) g eneration of artificial light(C) c reation of a photographic emulsion(D) human eye to react to light32 According to the passage, an advantage of using a photoflash is that it(A) can produce repeated bursts of light(B) i ntensities colors in photographs(C) i s short enough not to bother human eyes(D) supplements existing lighting33 The word “ignited” in line 9 is closest in mea ning to(A) set on fire(B) c ut into(C) o pened(D) shaken34 Which of the following phrases is defined in paragraph 1?(A)”appreciable period”(line 1)(B)”photographic emulsion”(line 3)(C)”high-speed movement”(line 5)(D)”odd poses”(line 11)35 The wo rd “evolution” in line 12 is closest in meaning to(A) publicity(B) a doption(C) d evelopment(D) manufacture36 The function of the glass in the first flashbulbs was to(A) produce the spark that initiated the flash(B) m agnify the light produced by the flash(C) p rotect the photographer from the heat of the flash(D) keep the metal and oxygen apart before the flash37 The word “it” in line 18 refers to(A) oxygen(B) b attery(C) w ire(D) current38 The word “momentarily” in line 20 is closest in mean ing to(A) effortlessly(B) b riefly(C) e lectronically(D) gradually39 According to the passage, the white color of the smoke particles generated by a flashbulb contributes to(A) rapid cooling(B) b right illumination(C) e lectrical conductivity(D) intense heat40 According to the passage, a flashbulb can be made to burn longer by using(A) thicker wire(B) m ore oxygen(C) t hinner glass(D) continuous electricityQuestions 41-50The stylistic innovation in paining known as Impressionism began in the 1870’s. The Impressionists wanted to depict what they saw in nature, but they were inspired to portray fragmentary moments by the increasingly fast pace of modern life. They concentrated onthe play of light over objects, people, and nature, breaking up seemingly solid surfaces,(5 ) stressing vivid contrast between colors in sunlight and shade, and depiction reflected lightin all of its possibilities. Unlike earlier artists, they did not want to observe the world from indoors. They abandoned the studio, painting in the open air and recording spontaneous Impressions of their subjects instead of making outside sketches and then moving indoorsto complete the work form memory.(10) Some of the Impressionists’ painting methods were affected by technologicaladvances. For example, the shift from the studio to the open air was made possible inpart by the advent of cheap rail travel, which permitted easy and quick access to thecountryside or seashore, as well as by newly developed chemical dyes and oils that ledto collapsible paint tubes, which enabled artists to finish their paintings on the spot.(15)Impressionism acquired its name not from supporters but from angry art lovers whofelt threatened by the new painting. The term “Impressionism” was born in 1874,whena group of artists who had been working together organized an exhibition of theirpaintings in order to draw public attention to their work. Reaction from the public andpress was immediate, and derisive. Among the 165 paintings exhibited was one called(20)Impression: Sunrise, by Claude Monet(1840-1926),Viewedthrough hostile eyes,Monet’s painting of a rising sun over a misty, watery scene seemed messy, slapdash,and an affront to good taste. Borrowing Monet’s title, art critics extended the term “Impressionism” to the entire exhibit. In response, Monet and his 29 fellow artists inthe exhibit adopted the same name as a badge of their unity, despite individual differences.(25)From then until 1886 Impressionism had all the zeal of a “church”, as the painter Renoirput it. Monet was faithful to the Impressionist creed until his death, although many of theothers moved on to new styles.41 What aspect of painting in the nineteenth century does the passage mainly discuss?(A) The impact of some artists’ resistance to the fast pace of life(B) T he differences between two major styles of art(C) A technological advance in the materials used by artists(D) A group of artists with a new technique and approach to art42 The word “depict” in line 2 is closest in meaning to(A) reorganize(B) d eform(C) r epresent(D) justify43 According to the passage, which of the following was one of the distinguishing characteristics of Impressionist painting?(A) The emphasis on people rather than nature scenes(B) T he way the subjects were presented from multiple angles(C) T he focus on small solid objects(D) The depiction of the effects of light and color44 Which of the following is a significant way in which Impressionists were different from the artists that preceded them?(A) They began by making sketches of their subjects(B) T hey painted their subjects out-of-doors(C) T hey preferred to paint from memory(D) They used subjects drawn from modern life45 The word “advent” in line 12 is closest in meaning to(A) achievement(B) a cceptance(C) a rrival(D) advantage46 The exhibition of paintings organized in 1874 resulted in all of the following EXCEPT(A) attracting attention from the public(B) a negative reaction from the press(C) a n immediate demand for the paintings exhibited(D) creating a name for a new style of painting47 The word “affront” in line 22 is closest in meaning to(A) insult(B) e ncouragement(C) r eturn(D) credit48 The rejection of the Impressionist exhibition by critics was caused by which of the following?(A) The small number of paintings on display(B) L ack of interest in exhibitions by young artists(C) T he similarity between all the paintings exhibited(D) Anger about seemingly poorly painted art49 The author mentions Renoir in line 25 to give an example of an artist who(A) became as famous as Monet(B) w as consistently praised by art critics(C) d escribed the enthusiasm of the Impressionists for their work(D) was in favor of a traditional style of painting50 The word “others” in line 27 refers to(A) art critics(B) f ellow artists(C) i ndividual differences(D) new styles0308答案ABADB CCCBA BDDCC DCDBA DACCB DBCAC DACBA BABDC BCAAD CDABACACCB CDBCB DACCC ABCDA CDCDC BDCDC BCDDC DBACBDAABA DDBAB CDBCB DCBBA BDACB DDBAA DDABC DCBBA DCDBC CADCB。

托福备考托福阅读34套TPO样题+解析+译文14--2MayaWaterProblems-

托福备考托福阅读34套TPO样题+解析+译文14--2MayaWaterProblems-

托福考试 复习托福阅读TPO14(试题+答案+译文)第2篇:Maya Water Problems托福阅读原文【1】To understand the ancientMayan people who lived in the area thatis today southern Mexico and CentralAmerica and the ecological difficulties they faced, one must first considertheir environment, which we think of as "jungle" or "tropicalrainforest." This view is inaccurate, andthe reason proves to beimportant. Properly speaking, tropical rainforestsgrow in high-rainfall equatorialareas that remain wet or humid all yearround. But the Maya homeland lies morethan sixteen hundred kilometersfrom the equator, at latitudes 17 to 22 degreesnorth, in a habitat termeda "seasonal tropical forest." That is,while there does tend to be a rainyseason from May to October, there is also adry season from January through April. If one focuses on the wet months, onecalls the Maya homeland a "seasonal tropical forest"; if one focuseson the dry months,one could instead describe it as a "seasonaldesert".【2】From north to south in theYucatan Peninsula, where the Maya lived,rainfall ranges from 18 to 100 inches(457 to 2,540 millimeters) per year,and the soils become thicker, so that thesouthern peninsula wasagriculturally more productive and supported denserpopulations. But rainfall in the Maya homeland is unpredictably variablebetween years; some recent years have had three or four times more rain thanother years.As a result, modern farmers attempting to grow corn in the ancientMaya homelands have faced frequent crop failures, especially in the north. Theancient Maya were presumably more experienced and did better, but neverthelessthey too must have faced risks of crop failures from droughtsand hurricanes.【3】Although southern Maya areasreceived more rainfall than northernareas, problems of water wereparadoxically more severe in the wet south.While that made things hard forancient Maya living in the south, it hasalso made things hard for modernarchaeologists who have difficulty understanding why ancient droughts causedbigger problems in the wetsouth than in the dry north. The likely explanationis that an area of underground freshwater underlies the Yucatan Peninsula, butsurface elevation increases from north to south, so that as one moves south theland surface lies increasingly higher above the water table. In the northernpeninsula the elevation is sufficiently low that the ancient Mayawere able toreach the water table at deep sinkholes called cenotes, or atdeep caves. Inlow-elevation north coastal areas without sinkholes, the Maya would have beenable to get down to the water table by diggingwells up to 75 feet (22 meters)deep. But much of the south lies too highabove the water table for cenotes orwells to reach down to it. Makingmatters worse, most of the Yucatan Peninsulaconsists of karst, a poroussponge-like limestone terrain where rain runsstraight into the ground and where little or no surface water remainsavailable.【4】How did those dense southernMaya populations deal with the resulting water problem? It initially surprisesus that many of their citieswere not built next to the rivers but instead onhigh terrain in rolling uplands. The explanation is that the Maya excavateddepressions, or modified natural depressions, and then plugged up leaks in thekarst byplastering the bottoms of the depressions in order to createreservoirs, which collected rain from large plastered catchment basins andstored itfor use in the dry season. For example, reservoirs at the Maya cityof Tikalheld enough water to meet the drinking water needs of about 10,000people for a period of 18 months. At the city of Coba the Mayabuilt dikesaround a lake in order to raise its level and make their watersupply morereliable. But the inhabitants of Tikal and other cities dependent on reservoirsfor drinking water would still have been in deeptrouble if 18 months passedwithout rain in a prolonged drought. A shorter drought in which they exhaustedtheir stored food supplies mightalready have gotten them in deep trouble,because growing cropsrequired rain rather than reservoirs.托福阅读试题1.Why does the author call the Mayan homeland both a “seasonal tropical forest” and “seasonal desert”(Paragraph 1)?A.To illustrate how the climate of the Mayan homeland varied from regionto region.B.To explain how the climate of the Mayan homeland is similar to that ofa jungle or tropical rainforest.C.To emphasize the vast size of the area that comprised the Mayan homeland in ancient times.D.To make the point that the Mayan homeland is climatically more complex than is generally assumed.2.Which of the following is NOT mentioned in paragraph 2 as a difference between the northern and southern Yucatan Peninsula?A.The annual rainfall was greater in the south.B.The population density was lower in the north.C.Agricultural productivity was greater in the south.D.Rainfall was more unpredictable and variable in the south.3.Which of the following statements about ancient and modem agriculture in the Yucatan Peninsula is supported by paragraph 2?A.Modern agricultural methods have solved many of the ancientproblems of farming in the Yucatan Peninsula.B.Ancient Mayan farmers may have been somewhat more successful atfarming in the Yucatan Peninsula than farmers are today.C.Farming today is easier than in the past because environmentalchanges in the Yucatan Peninsula have increased available rainfall.D.The Yucatan soils in which ancient farmers worked were richer, moreproductive, and thicker than they are today.3)in the passage is closest in4.The wo rd “paradoxically”(Paragraphmeaning toually.B.surprisingly.C.understandably.D.predictably.5.The phrase “The likely explanation”(Paragraph 3)in the passage refers to the explanation for whyA. the southern Maya areas received more rainfall than the northern areas.B. modern archaeologists have difficulty understanding ancient droughts.C. water problems were most severe in the wet south.nd surface in the south is so high above the water table.6.Which of the following statements about the availability of water in theMayan homeland is supported by paragraph 3?A.The construction of wells was an uncommon practice in both the northand the south because it was too difficult to dig through the karst.B.In most areas in the north and the south, rainwater was absorbed directly into the porous karst.C.The water table was an important resource for agriculture in both thenorth and the south of the Yucatan Peninsula.D.The lack of surface water in both the north and the south was probablydue to the fact that most of it was quickly used up for agricultural purposes.7.According to paragraph 3, why was the southern Mayan homeland hardto farm?A.The presence of numerous sinkholes and wells interfered with farming.B.Southern soil lacked the depth crops needed for growth.C.Underground water was too far below the surface to reach.D.The presence of karst caused frequent flooding.8.Which of the sentences below best expresses the essential informationin the highlighted sentence(paragraph 4) in the passage? Incorrect choices change the meaning in important ways or leave out essential information.A.Southern Maya populations obtained the water they needed for the dry season by collecting and storing rainwater in sealed depressions.B.The Maya are credited with creating methods for modifying naturalrainwater and storing it.C.Leaks in the karst caused difficulties in the creation of reservoirs, whichwere needed to store water for the dry season.D.Southern Mayans were more successful at collecting rain than storingit during dry seasons.9.What can be inferred from paragraph 4 about how residents of Tikalmet their needs for water and food during most periods of drought?A.They depended upon water and food that had been stored for use during the dry season.B.They obtained drinking water and water for crop irrigation from Cobadikes.C.They located their population centers near a lake where water was available for drinking and watering crops.D.They moved locations every 18 months to find new croplands and water sources.10.The word "prolonged" in the passage(paragraph 4)is closest in meaning toA.unusual.B.unexpected.C.extended.D.disastrous.11.The word "exhausted" in the passage(paragraph 4)is closest inmeaning toed up.B.reduced.C.wasted.D.relied upon.12. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence bestfit? The difference between the two climates challenged the Maya whohad to deal with both.To understand the ancient Mayan people who lived in the area that is today southern Mexico and Central America and the ecological difficulties they faced, one must first consider their environment, whichwe think of as "jungle" or "tropical rainforest." ■【A】This view is inaccurate, and the reason proves to be important. ■【B】Properly speaking, tropical rainforests grow in high-rainfall equatorial areas that remain wet or humid all year round. But the Maya homeland lies more than sixteen hundred kilometers from the equator, at latitudes 17 to 22 degrees north,in a habitat termed a "seasonal tropical forest." ■【C】That is, while there does tend to be a rainy season from May to October, there is also a dryseason from January through April. If one focuses on the wet months, one calls the Maya homeland a "seasonal tropical forest"; if one focuseson the dry months, one could instead describe it as a "seasonal desert."■【D】13.Directions: Select from the seven phrases below the phrases that correctly characterize the southern Mayan homeland and the phrases that correctly characterize the northern Mayan homeland. Drag each phrase you select into the appropriate column of the table. Two of thephrases will NOT be used. This question is worth 3 points.A. City of Tikal.B. Predictable rainfall.C. High above water table.D. Used reservoirs.E. Obtained water from wells.F.Dramatically improved corn crops.G. Had comparatively thin layer of soil.1 )Southern Mayan homelandA B C D E F G2 )Northern Mayan homelandA B C D E F G托福阅读答案1.修辞目的题,修辞点所在的句子只是单纯在说一个例子,所以往前看,前句说有雨季也有旱季,所以对应的是答案D,MAYA地区的气候复杂多变。

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1: The amount of air exchanged is even lower in REM than NREM because, although breathing is more rapid in REM, it is also more irregular, with brief episodes of shallow breathing or absence of breathing.○Because breathing is more shallow and irregular in REM than in NREM, less air is exchanged in REM.○Breathing in NREM is less effective than breathing in REM because of irregular episodes of rapid breathing during NREM.○Because breathing is more rapid in NREM sleep than in REM sleep, breathing often becomes shallow.○Although REM has brief episodes of shallow breathing or lack of breathing, breathing is more rapid than in NREM. 2: Fladmark’s hypothesis received additional support form from the fact that the greatest diversity in native American languages occurs along the west coast of the Americas, suggesting that this region has been settled the longest.○Because this region has been settled the longest, it also displays the greatest diversity in Native American languages.○Fladmark's hypothesis states that the west coast of the Americas has been settled longer than any other region.○The fact that the greatest diversity of Native American languages occurs along the west coast of the Americans lends strength to Fradmark's hypothesis.○According to Fladmark, Native American languages have survived the longest along the west coast of the Americas. 3: The tradition of religious sculpture extends over most historical periods but is less clearly delineated than that of stonewares or porcelains, for it embraces the old custom of earthenware burial ceramics with later religious images and architectural ornament.○ While stonewares and porcelains are found throughout most historical periods, religious sculpture is limited to the ancient period.○ Religious sculpture was created in most periods, but its history is less clear than that of stonewares or porcelainsbecause some old forms continued to be used even when new ones were developed.○While stonewares and porcelains changed throughout history, religious sculpture remained uniform in form and use.○The historical development of religious sculpture is relatively unclear because religious sculptures sometimes resemble earthenware architectural ornaments.4: Many plants and animals disappear abruptly from the fossil record as one moves from layers of rock documenting the end of the Cretaceous up into rocks representing the beginning of the Cenozoic (the era after the Mesozoic).○ The fossil record suggests that there was an abrupt extinction of many plants and animals at the end of the Mesozoic era.○ Few fossils of the Mesozoic era have survived in the rocks that mark the end of the Cretaceous.○ Fossils from the Cretaceous period of the Mesozoic up to the beginning of the Cenozoic era have been removed from the layers of rock that surrounded them.○ Plants and animals from the Mesozoic era were unable to survive in the Cenozoic era.5: Sociologists view primary groups as bridges between individuals and the larger society because they transmit, mediate, and interpret a society's cultural patterns and provide the sense of oneness so critical for social solidarity.○Sociologists think that cultural patterns establish connections between the individual and the larger society. ○Sociologists believe that individuals with a sense of oneness bridge the gap between society and primary groups.○Sociologists think primary groups contribute to social solidarity because they help maintain a society's cultural patterns.○Sociologists believe that the cultural patterns that provide social solidarity arise as bridges from primary groups.Glaciers move slowly across the land with tremendous energy, carving into even the hardest rock formations and thereby reshaping the landscape as they engulf, push, drag, and finally deposit rock debris in places far from its original location.○As a glacier moves, it leaves behind rock formationsthat have been engulfed, pushed, and dragged by theglacier.○Glaciers reshape the landscape by carving into rockand transporting the resulting debris todistantlocations.○Glaciers carve the hardest rock formations with great energy and slowly reshape them into debris.○The tremendous energy of slowly moving glacierstransports and finally deposits rock debris into largerock formations.Though it may be difficult to imagine from a later perspective, a strain of critical opinion in the 1920s predicted that sound film would be a technical novelty that would soon fade from sight, just as had many previous attempts, dating well back before the First World War, to link images with recorded sound.○It was difficult for some critics in the 1920s to imagine why the idea of sound film had faded from sight well before the First World War.○As surprising as it seems today, some critics in the 1920s believed that the new attempts at sound films would fade just as quickly as the attempts made before the First World War.○Though some early critics thought that sound film would fade, its popularity during the First World War proved that it was not simply a technical novelty.○Although some critics predicted well before the First World War that sound film would be an important technical innovation, it was not attempted until the 1920s.Indeed, stability of the biological clock's period is one of its major features, even when the organism's environment is subjected to considerable changes in factors, such as temperature, that would be expected to affect biological activity strongly.○Stability, a feature of the biological clock's period,depends on changeable factors such as temperature.○A major feature of the biological clock is that itsperiod does not change despite significant changes in the environment.○A factor such as temperature is an importantfeature in the establishment of the biological clock'speriod.○Biological activity is not strongly affected by changes in temperature.Inequalities of gender have also existed in pastoralist societies, but they seem to have been softened by the absence of steep hierarchies of wealth in mostcommunities, and also by the requirement that women acquire most of the skills of men, including, often, their military skills.○Despite the fact that wealth is relatively evenlydistributed in pastoral societies, gender inequality still exists because only men can acquire military skills and social status.○Inequalities of gender existed in pastoralist societies until most communities began to require women topossess the same skills as men and take part in themilitary.○Inequalities of gender in pastoralist societies werecaused by steep hierarchies of wealth and differencesin military training between men and women.○In pastoral societies, gender inequality iscomparatively mild because wealth is relatively evenly distributed and women have to learn most of the same skills that men do.Contrary to the arguments of some that much of the pacific was settled by Polynesians accidentally marooned after being lost and adrift, it seems reasonable that this feat was accomplished by deliberate colonization expeditions that set out fully stocked with food and domesticated plants and animals.○Some people have argued that the Pacific was settled by traders who became lost while transporting domesticated plants and animals.○The original Polynesian settlers were probably marooned on the islands, but they may have been joined later by carefully prepared colonization expeditions.○Although it seems reasonable to believe that colonization expeditions would set out fully stocked, this is contradicted by much of the evidence.○The settlement of the Pacific islands was probably intentional and well planned rather than accidental as some people have proposed.Physiological immaturity may be part of why infants and toddlers do not form extremely enduring memories, even when they hear stories that promote such remembering in preschoolers.○Incomplete physiological development may partly explain why hearing stories does not improve long-term memory in infants and toddlers.○One reason why preschoolers fail to comprehend the stories they hear is that they are physiologically immature. ○Given the chance to hear stories, infants and toddlers may form enduring memories despite physiological immaturity.○Physiologically mature children seem to have no difficulty remembering stories they heard as preschoolers.But detractors maintain that the terraces could also have been created by geological activity, perhaps related to the geologic forces that depressed the Northern Hemisphere far below the level of the south, in which case they have nothing whatever to do with Martian water.○But detractors argue that geological activity may be responsible for the water associated with the terraces.○But detractors argue that the terraces may have been formed by geological activity rather than by the presence of water.○But detractors argue that the terraces may be related to geological forces in the Northern Hemisphere of Mars, rather than to Martian water in the south.○But detractors argue that geological forces depressed the Northern Hemisphere so far below the level of the south that the terraces could not have been formed by water.He then set up experiments with caged starlings and found that their orientation was, in fact, in the proper migratory direction except when the sky was overcast, at which times there was no clear direction to their restless movements.○ Experiments revealed that caged starlings displayed a lack of directional sense and restless movements.○ Experiments revealed that caged starlings were unable to orient themselves in the direction of their normal migratory route.○ Experiments revealed that the restless movement of caged starlings had no clear direction.○ Experiments revealed that caged starlings' orientation was accurate unless the weather was overcast.There appear to be many unexplored matters about the motivation to reflect – for example, the value of externally motivated reflection as opposed to that of teachers who might reflect by habit.○The practice of being reflective is no longer simply a habit among teachers but something that is externally motivated.○Most teachers need to explore ways to form the habit of reflection even when no external motivation exists.○Many aspects of the motivation to reflect have not been studied, including the comparative benefits of externally motivated and habitual reflection among teachers.○There has not been enough exploration of why teachers practice reflection as a habit with or without external motivation.In order for the structure to achieve the size and strength necessary to meet its purpose, architecture employs methods of support that, because they are based on physical laws, have changed little since people first discovered them—even while building materials have changed dramatically.○Unchanging physical laws have limited the size and strength of buildings that can be made with materials discovered long ago.○Building materials have changed in order to increase architectural size and strength, but physical laws of structure have not changed.○When people first started to build, the structural methods used to provide strength and size were inadequate because they were not based on physical laws.○Unlike building materials, the methods of support used in architecture have not changed over time because they are based on physical laws.Hills and mountains are often regarded as the epitome of permanence, successfully resisting the destructive forces of nature, but in fact they tend to be relatively short-lived in geological terms.○When they are relatively young, hills and mountains successfully resist the destructive forces of nature.○Although they seem permanent, hills and mountains exist for a relatively short period of geological time.○Hills and mountains successfully resist the destructive forces of nature, but only for a short time.○Hills and mountains resist the destructive forces of nature better than other types of landforms.。

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