托福阅读真题100篇原文+题目(二十二)
托福(toefl)考试阅读理解部分全真试题
托福(TOEFL)考试阅读理解部分全真试题Questions 1-11Before the 1500 s, the western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present-day North Dakota. They had large village s of houses built close together. The tight arrangement enabled the Ma ndans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers sto red from one year to the next.The women had primary responsibility for the fields. They had to exerc ise considerable skill to produce the desired results, for their north ern location meant fleeting growing seasons. Winter often lingered; au tumn could be ushered in by severe frost. For good measure, during the spring and summer, drought, heat, hail, grasshoppers, and other frustr ations might await the wary grower.Under such conditions, Mandan women had to grow maize capable of weath ering adversity. They began as early as it appeared feasible to do so in the spring. clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn c ould be harvested, the crop required labor and vigilance.Harvesting proceeded in two stages. In August the Mandans picked a sma ller amount of the crop before it had matured fully. This green corn w as boiled, dried, and shelled, with some of the maize slated for immed iate consumption and the rest stored in animal-skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of t he harvest for seeds or for trade, with the remainder eaten right away or stored for later use in underground reserves. With appropriate bank ing of the extra food, the Mandans protected themselves against the di saster of crop failure and accompanying hunger.The women planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picke d it, they sliced it, dried it, and strung the slices before they stor ed them. Once again, they saved the seed from the best of the year s c rop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the old men.1. The Mandans built their houses close together in order to(A) guard their supplies of food(B) protect themselves against the weather(C) allow more room for growing corn(D) share farming implements2.The word "enabled" in line 5 is closest in meaning to(A)covered(B) reminded(C)helped(D)isolated3.The word "considerable" in line 10 is closest in meaning to(A) planning(B) much(C) physical(D) flew4.Why does the author believe that the Mandans were skilled farmers?(A) They developed effective fertilizers.(B) They developed new varieties of corn.(C) They could grow crops in most types of soil.(D) They could grow crops despite adverse weather.5. Tile word "consumption" in line 25 is closest in meaning to(A) decay(B) planting(C) eating(D) conversion6.Which of the following processes does the author imply was done by b oth men and women?(A) Clearing fields(B) Planting corn(C) Harvesting corn(D) harvesting squash.7.The word "disaster" in line 31 is closest in meaning to(A)control(B)catastrophe(C)avoidance(D)history8. According to the passage, the Mandans preserved their food by(A)smoking(B)drying(C)freezing.(D)salting9.The word "it" in line 34 refers to(A)June(B)corn(C)time(D)squash10.Which of the following crops was cultivated primarily by men(A) Corn(B)Squash(C)Sunflower(D)Tobacco11.Throughout the passage, the author implies that the Mandans(A)planned for the future(B) valued individuality(C)were open to strangers(D)were very adventurousQuestions 12-20The elements other than hydrogen and helium exist in such small quanti ties that it is accurate to say that the universe somewhat more than 2 5 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measured the abundance of helium throughout our galax y and in other galaxies as well. Helium has been found In old stars, i n relatively young ones, in interstellar gas, and in the distant objec ts known as quasars. Helium nuclei have also been found to be constitu ents of cosmic rays that fall on the earth (cosmic "rays" are not real ly a form of radiation; they consist of rapidly moving particles of nu merous different kinds). It doesn t seem to make very much difference where the helium is found. Its relative abundance never seems to vary much. In some places, there may be slightly more of it; In others, sli ghtly less, but the ratio of helium to hydrogen nuclei always remains about the same.Helium is created in stars. In fact, nuclear reactions that convert hy drogen to helium are responsible for most of the energy that stars pro duce. However, the amount of helium that could have been produced in t his manner can be calculated, and it turns out to be no more than a fe w percent. The universe has not existed long enough for this figure to be significantly greater. Consequently, if the universe is somewhat mo re than 25 percent helium now, then it must have been about 25 percent helium at a time near the beginning.. However, when the universe was l ess than one minute old, no helium could have existed. Calculations in dicate that before this time temperatures were too high and particles of matter were moving around much too rapidly. It was only after the o ne-minute point that helium could exist.By this time, the universe had cooled sufficiently that neutrons and p rotons could stick together. But the nuclear reactions that led to the formation of helium went on for only a relatively short time. By the t ime the universe was a few minutes old, helium production had effectiv ely ceased.12.What does the passage mainly explain?(A)How stars produce energy(B)The difference between helium and hydrogen(C)When most of the helium in the universe was formed(D)Why hydrogen is abundant13.According to the passage, helium is(A) the second-most abundant element in the universe(B) difficult to detect(C) the oldest element in the universe(D) the most prevalent element in quasars14.The word "constituents" in line 9 is closest in meaning to(A) relatives(B) causes(C)components(D) targets15.Why does the author mention "cosmic rays t in line 10?(A)As part of a list of things containing helium(B)As an example of an unsolved astronomical puzzle(C) To explain how the universe began(D) To explain the abundance of hydrogen in the universe16.The word "vary" in line 14 is closest ill meaning to(A) mean(B) stretch(C) change(D) include17.The creation of helium within stars(A) cannot be measured(B) produces energy(C) produces hydrogen as a by-product(D) causes helium to be much more abundant In old stars than In young star:18. The word "calculated" in line 20 is closest in meaning to(A) ignored(B) converted(C) increased(D) determined19.Most of the helium in the universe was formed(A) in interstellar space(B) in a very short time(C)during the first minute of the universe s existence(D) before most of the hydrogen20.The word "ceased" in line 35 is closest in meaning to(A)extended(B)performed(C)taken hold(D)stoppedQuestions 21-30In colonial America, people generally covered their beds with decorati ve quilts resembling those of the lands from which the quitters had co me. Wealthy and socially prominent settlers made quilts of the English type, cut from large lengths of cloth of the same color and texture ra ther than stitched together from smaller pieces. They mad these until the advent of the Revolutionary War in I 775, when everything English came to be frowned upon.Among the whole-cloth quilts made by these wealthy settlers during the early period are those now called linsey- woolseys. This term was usually applied to a fabric of wool and linen used In heavy clothing and q uilted petticoats worn in the wintertime. Despite the name, linsey-woo lsey bedcovers did not often contain linen. Rather, they were made ofa top layer of woolen or glazed worsted wool fabric, consisting of smo oth, compact yarn from long wool fiber dyed dark blue, green, or brown with a bottom layer of a coarser woolen material, either natural or a shade of yellow. The filling was a soft layer of wool which had been c leaned and separated and the three layers were held together with deco rative stitching done with homespun linen thread. Later, cotton thread was used for this purpose. The design of the stitching was often a sim ple one composed of interlocking circles or crossed diagonal lines giv ing a diamond pattern.This type of heavy, warm, quilted bedcover was so large that it hung to the floor. The corners are cut out at the foot of the cover so that the quilt fit snugly around the tall four-poster, beds of the 1700 s, which differed from those of today in that they were shorter and wider; they were short because people slept in a semi-sitting position with m any bolsters or pillows, and wide, because each bed often slept threeor more. The linsey-woolsey covering was found in the colder regions of the country because of the warmth it afforded. There was no central heating and most bedrooms did not have fireplaces.21. What does this passage mainly discuss?(A) The processing of wool(B) Linsey-woolsey bedcovers(C) Sleeping habits of colonial Americans(D) Quilts made in England22. The word "prominent" in line 3 is closest in meaning to(A) isolated(B) concerned(C) generous(D) distinguished23.The author mention the Revolutionary War as a time period when(A) quills were supplied to the army(B) more immigrants arrived from England(C) quills imported from England became harder to find(D) people s attitudes toward England changed.24.The phrase "applied to" in line 11 is closest in meaning to(A) sewn onto(B) compared to(C) used for(D) written down on25.The term "linsey-woolsey" originally meant fabric used primarily in(A)quilts(B)sheets(C)clothing(D) pillows26.The word "coarser" in line 17 is closest in meaning to(A)older(B) less heavy(C)more attractive(D) rougher27.The quilts described in the second and third paragraphs were made p rimarily of(A) wool(B) linen(C) cotton(D) a mixture of fabrics28.It can be inferred from the third paragraph that the sleeping habit sof most Americans have changed since the 1700 s in all the following w ays EXCEPT(A) the position in which people sleep(B) the numbers of bolsters or pillows people sleep on(C) the length of time people sleep(D) the number of people who sleep in one bed29.The word "afforded" in line 33 is closest in meaning to(A) provided(B) spent(C) avoided(D) absorbed30.Which of the following was most likely to be found in a bedroom in the colder areas of the American colonies?(A)A linsey-woolsey(B)A vent from a central healing system(C)A fireplace(D)A wood stoveQuestions 31-40Growing tightly packed together and collectively weaving a dense canop y of branches, a stand of red alder trees can totally dominate a site to the exclusion of almost everything else. Certain species such as sa lmonberry and sword ferns have Line adapted to the limited sunlight da ppling through the canopy, but few evergreen trees (S) will survive th ere; still fewer can compete with the early prodigious growth of alder s. A Douglas fir tree reaches its maximum rate of growth ten years lat er than an alder, and if the two of them begin life at the same time, the alder quickly outgrows and dominates the Douglas fir. After an ald er canopy has closed, the Douglas fir suffers a marked decrease in gro wth, often dying within seven years. Even more shade-tolerant species of trees such as hemlock may remain badly suppressed beneath aggressiv e young alders.Companies engaged in intensive timber cropping naturally take a dim vi ew of alders suppressing more valuable evergreen trees. But times are changing; a new generation of foresters seems better prepared to Inclu de in their management plans consideration of the vital ecological rol e alders, play. Among the alder s valuable ecological contributions is its capacity to fix nitrogen in nitrogen-deficient soils. Alder roots contain clusters of nitrogen-fixing nodules like those found on legume s such as beans. in addition, newly developing soils exposed by recent glacier retreat and planted with alders show that these trees are appl ying the equivalent of ten bags of high- nitrogen fertilizer to each h ectare per year. Other chemical changes to soil in which they are grow ing Include a lowering of the base content and rise In soil acidity, a s well as a substantial addition of carbon and calcium. to the soil.Another important role many alders play in the wild, particularly in m ountainous areas, is to check the rush of water during spring melt. In Japan and elsewhere, the trees are planted to stabilize soil on steep mountain slopes. Similarly, alders have been planted to stabilize and rehabilitate waste material left over from old mines, flood deposits, and landslide areas in both Europe and Asia.31.What does the passage mainly discuss?(A)Differences between alder trees and Douglas fir trees(B)Alder trees as a source of timber(C)Management plans for using alder trees to improve soil(D)The relation of alder trees to their forest environments32.The word "dense" in line I is closest in meaning to(A) dark(B) tall(C) thick(D) broad33.Alder trees can suppress the growth of nearby trees by depriving th em of(A) nitrogen(B) sunlight(C) soil nutrients(D) water34.Thc passage suggests that Douglas fir trees are(A)a type of alder(B)a type of evergreen(C)similar to sword ferns(D)fast-growing trees35.It can be inferred from paragraph I that hemlock trees(A) are similar in size to alder trees.(B) interfere with the growth of Douglas fir trees(C) reduce the number of alder trees In the forest(D) need less sunlight than do Douglas fir trees36.It can be inferred from paragraph 2 that previous generations of fo resters(A) did not study the effects of alders on forests(B) did not want alders In forests(C) harvested alders for lumber(D) used alders to control the growth of evergreens37.The word "they" in line 27 refers to(A) newly developing soils(B) alders(C) bags(D) chemical changes38.According to the passage that alders are used in mountainous areasto(A) nitrogen(B) calcium(C) carbon(D) oxygen39.It can be Inferred from the passage that alders are used in mountai nous areas to(A) prevent water from carrying away soil(B) hold the snow(C) protect mines(D) provide material for housing40.What is the author s main purpose in the passage?(A) To argue that alder trees are useful in forest management(B) To explain the life cycle of alder trees(C) To criticize the way alders take over and eliminate forests(D) To illustrate how alder trees control soil erosionQuestions 41-50In taking ups new life across the Atlantic, the early European settlers of the United States did not abandon the diversions with which their ancestors had traditionally relieved the tedium of life. Neither the h arshness of existence on the new continent nor Line the scattered popu lation nor the disapproval of the clergy discouraged the majority from the pursuit of pleasure.City and country dwellers. of course. conducted this pursuit in differ ent ways. Farm dwellers in their isolation not only found it harder to locate companions in play but also thanks to the unending demands and pressures of their work, felt it necessary to combine fun with purpose. No other set of colonists too so seriously one expression of the perio d. "Leisure Is time for doing something useful." in the country- side farmers therefore relieved the burden of the daily routine with such d ouble-purpose relaxation as hunting. fishing, and trapping. When a nei ghbor needed help, families rallied from miles around to assist In bui lding a house or barn, husking corn, shearing sheep. or chopping wood. Food, drink, and celebration after the group work provided relaxation and soothed weary muscles.The most eagerly anticipated social events were the rural fairs, Hundr eds of men, women, and children attended from far and near. The men bought or traded farm animals and acquired needed merchandise while the women displayed food prepared in their kitchens, and everyone, Includi ng the youngsters, watched or participated in a variety of competitive sports, with prizes awarded to the winners. These events typically inc luded horse races, wrestling matches, and foot races, as well as some nonathletic events such as whistling competitions. No other occasions did so much to relieve the isolation of farm existence.With the open countryside everywhere at hand, city dwellers naturally shared in some of the rural diversions. Favored recreations included f ishing, hunting1 skating, and swimming. But city dwellers also develop ed other pleasures. which only compact communities made possible.41.What is the passage mainly about?(A) Methods of farming used by early settlers of the United States(B) Hardships faced by the early settlers of the United States(C) Methods of buying, selling, and trading used by early settlers of the United States(D) Ways in which early settlers of the United States relaxed42.What can be inferred about the diversions of the early settlers of the United States?(A) They followed a pattern begun in Europe.(B) They were enjoyed more frequently than in Europe.(C) The clergy organized them.(D) Only the wealthy participated in them.43.Which of he following can be said about the country dwellers attitu de toward "the pursuit of pleasure"?(A) They felt that it should help keep their minds on their work.(B) They felt that it was not necessary.(C) They felt that it should be. productive.(D) They felt that it should not involve eating and drinking.44.The phrase "thanks to" in line 10-11 is closest in meaning to(A)grateful for(B) help with(C) because of(D) machines for45.The word "their" in line 11 refers to(B) farm dwellers(C) demands(D) pressures46.What is meant by the phrase "double-purpose" in line 19 ?(A) Very frequent(B) Useful and enjoyable(C) Extremely necessary(D) Positive and negative47.The phrase "eagerly anticipated" in line 22 is closest in meaning t o(A) well organized(B) old-fashioned(C) strongly opposed(D) looked forward to48.Which of the following can be said about the rural diversions menti oned in the last paragraph in which city dwellers also participated?(A) They were useful to the rural community.(B) They involved the purchase items useful in the home.(C) They were activities that could be done equally easily in the town s(D) They were all outdoor activities.49.What will the author probably discuss in the paragraph following th is passage?(A) The rural diversions enjoyed by both urban and rural people(B) Leisure activities of city dwellers(C) Building methods of the early settlers in rural areas(D)Changes in the lifestyles of settlers as they moved to the cities50. Where in the passage does the author mention factors that might pr event people from enjoying themselves?(A)Line4-7(B) Lines 12-14(C) Lines 17-20(D)Lines 25-271。
托福备考托福阅读34套TPO样题+解析+译文22--2 The Birth of Photography
托福考试 复习托福阅读TPO22(试题+答案+译文)第2篇:The Birth of Photography托福阅读原文【1】Perceptions of the visible world were greatly altered by the invention of photography in the middle of the nineteenth century. In particular, and quite logically, the art of painting was forever changed, though not always in the ways one might have expected. The realistic and naturalistic painters of the mid- and late-nineteenth century were all intently aware of photography—as a thing to use, to learn from, and react to.【2】Unlike most major inventions, photography had been long and impatiently awaited. The images produced by the camera obscura, a boxlike device that used a pinhole or lens to throw an image onto a ground-glass screen or a piece of white paper, were already familiar—the device had been much employed by topographical artists like the Italian painter Canaletto in his detailed views of the city of Venice. What was lacking was a way of giving such images permanent form. This was finally achieved by Louis Daguerre (1787-1851), who perfected a way of fixing them on a silvered copper plate. His discovery, the "daguerreotype," was announced in 1839.【3】A second and very different process was patented by the Britishinventor William Henry Talbot (1800-1877) in 1841. Talbot's "calotype" was the first negative-to-positive process and the direct ancestor of the modern photograph. The calotype was revolutionary in its use of chemically treated paper in which areas hit by light became dark in tone, producing a negative image. This "negative," as Talbot called it, could then be used to print multiple positive images on another piece of treated paper.【4】The two processes produced very different results. The daguerreotype was a unique image that reproduced what was in front of the camera lens in minute, unselective detail and could not be duplicated. The calotype could be made in series, and was thus the equivalent of an etching or an engraving. Its general effect was soft edged and tonal. 【5】One of the things that most impressed the original audience for photography was the idea of authenticity. Nature now seemed able to speak for itself, with a minimum of interference. The title Talbot chose for his book, The Pencil of Nature (the first part of which was published in 1844), reflected this feeling. Artists were fascinated by photography because it offered a way of examining the world in much greater detail. They were also afraid of it, because it seemed likely to make their own efforts unnecessary.【6】Photography did indeed make certain kinds of painting obsolete—the daguerreotype virtually did away with the portrait miniature. It alsomade the whole business of making and owning images democratic. Portraiture, once a luxury for the privileged few, was suddenly well within the reach of many more people.【7】In the long term, photography's impact on the visual arts was far from simple. Because the medium was so prolific, in the sense that it was possible to produce a multitude of images very cheaply, it was soon treated as the poor relation of fine art, rather than its destined successor. Even those artists who were most dependent on photography became reluctant to admit that they made use of it, in case this compromised their professional standing.【8】The rapid technical development of photography—the introduction of lighter and simpler equipment, and of new emulsions that coated photographic plates, film, and paper and enabled images to be made at much faster speeds—had some unanticipated consequences. Scientific experiments made by photographers such as Eadweard Muybridge (1830-1904) and Etienne-Jules Marey (1830-1904) demonstrated that the movements of both humans and animals differed widely from the way they had been traditionally represented in art. Artists, often reluctantly, were forced to accept the evidence provided by the camera. The new candid photography—unposed pictures that were made when the subjects were unaware that their pictures were being taken—confirmed these scientific results, and at the same time, thanks to the radicalcropping (trimming) of images that the camera often imposed, suggested new compositional formats. The accidental effects obtained by candid photographers were soon being copied by artists such as the French painter Degas.托福阅读试题1.What can be inferred from paragraphs 1 and 2 about the effect of photography on nineteenth-century painting?A.Photography did not significantly change the way people looked at reality.B.Most painters used the images of the camera obscura in preference to those of the daguerreotype.C.Painters who were concerned with realistic or naturalistic representation were particularly influenced by photography.D.Artists used the long-awaited invention of photography in just the ways they had expected to.2.According to paragraphs 2 and 3 which of the following did the daguerreotype and the calotype have in common?A.They were equally useful for artists.B.They could be reproduced.C.They produced a permanent imageD.They were produced on treated paper.3.The word "duplicated" in paragraph 4 is closest in meaning toA.copied.B.replaced.C.handled.D.clarified.4.The phrase "Its general effect" in paragraph 4 refers toA.the camera lens.B.the calotype.C.the etching.D.the engraving.5.The word "authenticity" in paragraph 5 is closest in meaning toA.improvement.B.practicality.C.genuineness.D.repetition.6.What point does the author make in paragraph 6?A.Paintings became less expensive because of competition with photography.B.Photography, unlike painting, was a type of portraiture that even ordinary people could afford.C.Every style of painting was influenced by the invention of photography.D.The daguerreotype was more popular than the calotype.7.The word "reluctant" in paragraph 7 is closest in meaning toA.unable.B.embarrassed.C.unlikely.D.unwilling.8.Which of the sentences below best expresses the essential information in the highlighted sentence in paragraph 7? Incorrect choices change the meaning in important ways or leave out essential information.A.Photography did not replace other fine arts because people felt the image looked cheap in relation to the other arts.B.Photography was not considered a true art because people could use it to create many images cheaply.C.Photography was so cheap and readily available that it could be purchased by people who were too poor to purchase fine art.D.Photography not only spread quickly but also was a cheap art form and so became true successor of fine arts rather than its poor relation.9.The word "unanticipated" in paragraph 8 is closest in meaning toA.indirect.B.not expected.C.unquestionable.D.beneficial.10.The word "accidental" in paragraph 8 is closest in meaning toA.surprising.B.unintentional.C.realistic.D.unusual.11.Which of the following is mentioned in paragraph 8 as a benefit that artists derived from photography?A.It inspired artists to use technological themes in their painting.B.It lent prestige to those artists who used photographs as models for paintingsC.It provided artists with new types of equipment to speed up the painting process.D.It motivated artists to think about new ways to compose images in their paintings.12.It can be inferred from paragraph 8 that one effect that photography had on painting was that itA.provided painters with new insights into how humans and animals actually move.B.showed that representing movement could be as interesting as portrait art.C.increased the appeal of painted portraiture among the wealthy.D.influenced artists to improve techniques for painting faster.13. Look at the four squares HI 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. Although his process produced permanent images, each was unique and no reproduction of the picture was possible.Unlike most major inventions, photography had been long and impatiently awaited. The images produced by the camera obscura, a boxlike device that used a pinhole or lens to throw an image onto a ground-glass screen or a piece of white paper, were already familiar—the device had been much employed by topographical artists like the Italian painter Canaletto in his detailed views of the city of Venice. What was lacking was a way of giving such images permanent form. This was finally achieved by Louis Daguerre (1787-1851), who perfected a way of fixing them on a silvered copper plate. His discovery, the "daguerreotype," was announced in 1839.■【A】A second and very different process was patented by the British inventor William Henry Talbot (1800-1877) in 1841.■【B】Talbot's "calotype" was the first negative-to-positive process and the direct ancestor of the modern photograph. The calotype was revolutionary in its use of chemically treated paper in which areas hit by light became dark in tone, producing a negative image.■【C】This "negative," as Talbot called it, could then be used to print multiple positive images on another piece oftreated paper.■【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.The invention of photography had a significant impact on the art of painting in the nineteenth century.A.For a brief time, artists preferred not to paint natural or realistic images that would have to compete with photographs.B.Before photography, Canaletto had used the camera obscura to project scenes onto a paper or glass plate.C.The photographic processes of Louis Daguerre and William Henry Talbot both made permanent images, but only Talbot's process allowed making multiple copies.D.The work of Eadweard Muybridge and Etienne-Jules Marey established photography both as a science and as an art.E.Photography made accurate images widely and inexpensively available, but this popular success also had the effect of lowering its perceived value in relation to the fine arts.F.Photography eliminated the painted portrait miniature, led artists toaccurately represent movement, and affected pictorial composition, but did not replace traditional visual arts.托福阅读答案1.以nineteenth-century做关键词定位至第一段最后一句,说十九世纪中晚期的painter都非常专注于photography,去使用,去学习,去回应,所以正确答案是C,受影响。
tpo32三篇托福阅读TOEFL原文译文题目答案译文背景知识
tpo32三篇托福阅读TOEFL原文译文题目答案译文背景知识阅读-1 (2)原文 (2)译文 (5)题目 (7)答案 (16)背景知识 (16)阅读-2 (25)原文 (25)译文 (28)题目 (31)答案 (40)背景知识 (41)阅读-3 (49)原文 (49)译文 (53)题目 (55)答案 (63)背景知识 (64)阅读-1原文Plant Colonization①Colonization is one way in which plants can change the ecology of a site.Colonization is a process with two components:invasion and survival.The rate at which a site is colonized by plants depends on both the rate at which individual organisms(seeds,spores,immature or mature individuals)arrive at the site and their success at becoming established and surviving.Success in colonization depends to a great extent on there being a site available for colonization–a safe site where disturbance by fire or by cutting down of trees has either removed competing species or reduced levels of competition and other negative interactions to a level at which the invading species can become established.For a given rate of invasion,colonization of a moist,fertile site is likely to be much more rapid than that of a dry, infertile site because of poor survival on the latter.A fertile,plowed field is rapidly invaded by a large variety of weeds,whereas a neighboring construction site from which the soil has been compacted or removed to expose a coarse,infertile parent material may remain virtually free of vegetation for many months or even years despite receiving the same input of seeds as the plowed field.②Both the rate of invasion and the rate of extinction vary greatly among different plant species.Pioneer species-those that occur only in the earliest stages of colonization-tend to have high rates of invasion because they produce very large numbers of reproductive propagules(seeds,spores,and so on)and because they have an efficient means of dispersal(normally,wind).③If colonizers produce short-lived reproductive propagules,they must produce very large numbers unless they have an efficient means of dispersal to suitable new habitats.Many plants depend on wind for dispersal and produce abundant quantities of small,relatively short-lived seeds to compensate for the fact that wind is not always a reliable means If reaching the appropriate type of habitat.Alternative strategies have evolved in some plants,such as those that produce fewer but larger seeds that are dispersed to suitable sites by birds or small mammals or those that produce long-lived seeds.Many forest plants seem to exhibit the latter adaptation,and viable seeds of pioneer species can be found in large numbers on some forest floors. For example,as many as1,125viable seeds per square meter were found in a100-year-old Douglas fir/western hemlock forest in coastal British Columbia.Nearly all the seeds that had germinated from this seed bank were from pioneer species.The rapid colonization of such sites after disturbance is undoubtedly in part a reflection of the largeseed band on the forest floor.④An adaptation that is well developed in colonizing species is a high degree of variation in germination(the beginning of a seed’s growth). Seeds of a given species exhibit a wide range of germination dates, increasing the probability that at least some of the seeds will germinate during a period of favorable environmental conditions.This is particularly important for species that colonize an environment where there is no existing vegetation to ameliorate climatic extremes and in which there may be great climatic diversity.⑤Species succession in plant communities,i.e.,the temporal sequence of appearance and disappearance of species is dependent on events occurring at different stages in the life history of a species. Variation in rates of invasion and growth plays an important role in determining patterns of succession,especially secondary succession. The species that are first to colonize a site are those that produce abundant seed that is distributed successfully to new sites.Such species generally grow rapidly and quickly dominate new sites, excluding other species with lower invasion and growth rates.The first community that occupies a disturbed area therefore may be composed of specie with the highest rate of invasion,whereas the community of the subsequent stage may consist of plants with similar survival ratesbut lower invasion rates.译文植物定居①定居是植物改变一个地点生态环境的一种方式。
托福资料之老托阅读100篇【完整版】.docx
托福资料之老托阅读 100 篇【完整版】老托阅读 100 篇相对 TPO 要简单一些,也是伴随托福备考学员的很重要的一份资料,对于基础薄弱,做 TPO 真题阅读需要过渡的考生来说再适合不过了,为方便考生备考,太傻留学托福考试频道特意将这100 篇托福阅读理解为考生做了归纳和整理,考生只要收藏此页面,就可以在需要的时候打开进行练习了!Toefl 资料下载之老托阅读100 篇【完整版】PASSAGE 1: 冰箱的发展PASSAGE 2: 水循环PASSAGE 3: 印第安人变篮子的故事PASSAGE 4: 哈德逊河派的绘画PASSAGE 6: 硫酸钾在造玻璃和肥皂时的作PASSAGE 5: 创造文化的材料和技术用PASSAGE 7:Philadelphia's 如何发展成商业PASSAGE 8: 为什么大型动物要生活在热带中心雨林PASSAGE 9: 孟买象化石的发现地PASSAGE 10: 人类饮食活动的变化PASSAGE 11: 竹屋怎样防御外界的侵害PASSAGE 12: 动物在岩石上产卵PASSAGE 13: 地球表面岩石的生长与分类PASSAGE 14: 电视对美国政治的影响PASSAGE 15: 菌类对农业的影响PASSAGE 16: 鸟的祖先PASSAGE 17: 鹦鹉产卵的方式PASSAGE 18: 女性对美国建立初期的贡献PASSAGE 19: 北美城市的发展PASSAGE 20: 壁炉的构造PASSAGE 21: 美国早期雕塑的发展PASSAGE 22: 北美城市的发展改革PASSAGE 23: 美国早期城市功能的发展PASSAGE 24: 地球极地激光的形成和外形PASSAGE 25: 营养学研究的历史PASSAGE 26: 关于某彗星的介绍PASSAGE 28:19 世纪末 20 世纪初艺术的发PASSAGE 27: 土壤分解法展PASSAGE 29:一种农业机器在美国的普遍PASSAGE 30: 蝴蝶的种类使用PASSAGE 31: 房租租金的控制PASSAGE 32: 西方艺术发展史PASSAGE 33: 关于做决定的研究PASSAGE 34: 城市的发展以及移民PASSAGE 35: 一种岩洞对观察天象的影响PASSAGE 36: 美国水彩画协会的发展PASSAGE 37: 人的声音对个性的影响PASSAGE 38 : 有关冰河时代的PASSAGE 39: 印第安人捕鱼的生活方式PASSAGE 40: 一周工人工作时间的演变PASSAGE 42:美国铁路发展给美国带来的PASSAGE 41: 地球物种灭绝的分析影响PASSAGE 43: 抗感染药的发明PASSAGE 44: 大脑中神经系统的结构PASSAGE 45:19 世纪的家庭工作PASSAGE 46: 宾夕法尼亚暖气锅炉的改造PASSAGE 47: 美国在 20 世纪初对移民者的PASSAGE 48: 不同领导的领导风格介绍PASSAGE 50:19 世纪艺术在工业社会中的PASSAGE 49: 古代陶瓷的制作方式角色PASSAGE 51 : 美国建立自然生态保护园的PASSAGE 52:美国劳动力从农业到工业的介绍转变PASSAGE 54:被作曲家采用越来越多的音PASSAGE 53: 玻璃纤维的使用方法乐元素PASSAGE 55: 建立公园的计划PASSAGE 56: 民歌定义的不同理解PASSAGE 58:从狩猎到农业的改变对人类PASSAGE 57: 希腊陶瓷技术的发展生活的影响PASSAGE 60: 美国棉花 19 时期作为重要的PASSAGE 59: 历史上第一只鸟的介绍出口商品PASSAGE61: 北美农业殖民地艺术家作品PASSAGE 62: 关于鸟换毛的事PASSAGE 63: 鸟躲避侵略者的三种策略PASSAGE 64: 蚂蚁工作方式的介绍PASSAGE 65: 彗星的 coma 的形成PASSAGE 66: 小孩学说话PASSAGE 67: 某个奇特地方的植被PASSAGE 68: 北美陶瓷的制作PASSAGE 69:美国报纸上气象报道图的变PASSAGE 70: 鸟搭窝的方式化PASSAGE 71: 地理位置对城市发展的影响PASSAGE 72: 哈莱姆文艺复兴PASSAGE 73: 科技与工业化联系PASSAGE 74: 冰川的形成及融化PASSAGE 75:早期狩猎对大型体格动物灭PASSAGE 76: 泥土的形成及其用途绝的影响PSSAGE 77: 生物灭绝的原因PASSAGE 78: 远古的文字PASSAGE 79: 动物行为的研究PASSAGE 80: 美国调查方式的实施PASSAGE 82:婴幼儿时期的模仿对人和动PASSAGE 81: 木星的简介物的影响PASSAGE 83:美国现实主义和自然主义作PASSAGE 84: 美国早期印刷业的内容家介绍PASSAGE 85: 郁金香在北美殖民地的发展PASSAGE 86: 蚂蚁生存使用的各种信号PASSAGE 87: 热能在大气中传输PASSAGE 88: 化石的形成PASSAGE 90:某时期变化对海洋生物的影PASSAGE 89:19 世纪静物艺术品响PASSAGE 91:不同时期艺术装饰风格的简PASSAGE 92: 岩石层对气候的影响介PASSAGE 94:美国工业化给美国经济带来PASSAGE 93: 洛杉矶城市的发展的改变PASSAGE 95:昆虫怎样用信息素来传递信PASSAGE 96:Homestead Act 的弊端息PASSAGE 97: 对月亮两个区域的研究PASSAGE 98 : 松鼠吃橡果的迷PASSAGE 99 : 碳水化合物和气温的关系PASSAGE 100: 小提琴的发展和使用原文网址:托福考试:。
托福阅读真题练习:动物行为的文本+题目+答案
托福阅读真题练习:动物行为的文本+题目+答案托福阅读如何进行备考?除了大量的托福词汇储备以外,大家可能最需要的就是托福阅读真题的练习。
那么除了官方真题Official你还有哪些托福阅读真题进行练习呢?今天小编就为大家整理了托福阅读真题100篇:动物行为的文本、题目以及答案,希望可以帮助到大家。
托福阅读真题练习:动物行为的文本Some animal behaviorists argue that certain animals can remember past events, anticipatefuture ones, make plans and choices, and coordinate activities within a group. These scientists,however, are cautious about the extent to which animals can be credited with consciousprocessing.Explanations of animal behavior that leave out any sort of consciousness at all and ascribeactions entirely to instinct leave many questions unanswered. One example of such unexplainedbehavior: honeybees communicate the sources of nectar to one another by doing a dance in afigure-eight pattern. The orientation of the dance conveys the position of the food relative to thesun's position in the sky, and the speed of the dance tells how far the food source is from the hive.Most researchers assume that the ability to perform and encode the dance is innate and shows nospecial intelligence. But in one study, when experimenters kept changing the site of the foodsource, each time moving the food 25 percent farther from the previous site, foraging honeybeesbegan to anticipate where the food source would appear next. When the researchers arrived at thenew location, they would find the bees circling the spot, waiting for their food. No one has yetexplained how bees, whose brains weigh four ten-thousandths of an ounce, could have inferred thelocation of the new site.Other behaviors that may indicate some cognition include tool use. Many animals, like theotter who uses a stone to crack mussel shells, are capable of using objects in the naturalenvironment as rudimentary tools. One researcher has found that mother chimpanzeesoccasionally show their young how to use tools to open hard nuts. In one study, chimpanzeescompared two pairs of food wells containing chocolate chips. One pair might contain, say, fivechips and three chips, the other four chips and three chips. Allowed to choose which pair theywanted, the chimpanzees almost always chose the one with the higher total, showing some sort ofsumming ability. Other chimpanzees have learned to use numerals to label quantities of items anddo simple sums.托福阅读真题练习:动物行为的题目1. What does the passage mainly discuss?(A) The role of instinct in animal behavior(B) Observations that suggest consciousness in animal behavior(C) The use of food in studies of animal behavior(D) Differences between the behavior of animals in their natural environments and in laboratoryexperiments.2. Which of the following is NOT discussed as an ability animals are thought to have?(A) Selecting among choices(B)Anticipating events to come(C) Remembering past experiences(D) Communicating emotions3. What is the purpose of the honeybee dance?(A) To determine the quantity of food at a site(B) To communicate the location of food(C) To increase the speed of travel to food sources(D) To identify the type of nectar that is available4. The word "yet" in line 15 is closest in meaning to(A) however(B) since(C) generally(D) so far5. What did researchers discover in the study of honeybees discussed in paragraph 2?(A) Bees are able to travel at greater speeds than scientists thought.(B) The bees could travel 25% farther than scientists expected.(C) The bees were able to determine in advance where scientists would place their food.(D) Changing the location of food caused bees to decrease their dance activity.6. It can be inferred from the passage that brain size isassumed to(A) be an indicator of cognitive ability(B) vary among individuals within a species(C) be related to food consumption(D) correspond to levels of activity7. Why are otters and mussel shells included in the discussion in paragraph 3?(A) To provide an example of tool use among animals(B) To prove that certain species demonstrate greater ability in tool use than other species(C) To illustrate how otters are using objects as tools(D) T o demonstrate why mother chimpanzees show their young how to use tools8. The word "rudimentary" in line 20 is closest in meaning to(A) superior(B) original(C) basic(D) technical9. It can be inferred from the statement about mother chimpanzees and their young (lines 20-22)that young chimpanzees have difficulty(A) communicating with their mothers(B) adding quantities(C) making choices(D) opening hard nuts10. The phrase "the one" in line 24-25 refers to the(A) study(B) pair(C) chimpanzee(D) ability11. Scientists concluded from the experiment with chimpanzees and chocolate chips thatchimpanzees(A) lack abilities that other primates have(B) prefer to work in pairs or groups(C) exhibit behavior that indicates certain mathematical abilities(D) have difficulty selecting when given choices托福阅读真题练习:动物行为的答案BDBDCAACDB C托福阅读真题的重要性阅读是与旧托福相比改变最少的,题目方向大体保持了一致。
TOEFL阅读基础真题及答案-223页文档资料
TOEFL阅读基础目录TPO1 (3)G ROUNDWATER (3)TEST (7)T HE O RIGINS OF T HEATER (8)TEST (13)T IMBERLINE V EGETATION ON M OUNTAINS (14)TEST (18)TPO2 (19)T HE O RIGINS OF C ETACEANS (19)TEST (23)D ESERT F ORMATION (24)TEST (28)E ARLY C INEMA (29)TEST (33)TPO3 (34)A RCHITECTURE (34)TEST (39)D EPLETION OF THE O GALLALA A QUIFER (40)TEST (45)T HE L ONG-T ERM S TABILITY OF E COSYSTEMS (46)TEST (50)TPO4 (51)D EER P OPULATIONS OF THE P UGET S OUND (51)TEST (56)C AVE A RT IN E UROPE (57)TEST (62)P ETROLEUM R ESOURCES (63)TEST (67)TPO5 (68)M INERALS AND P LANTS (68)TEST (73)T HE O RIGIN OF THE P ACIFIC I SLAND P EOPLE (74)TEST (79)T HE C AMBRIAN E XPLOSION (80)TEST (85)TPO11 (86)A NCIENT E GYPTIAN S CULPTURE (86)TEST (91)TEST (97)B EGGING BY N ESTLINGS (98)TEST (103)TPO12 (104)W HICH H AND D ID T HEY U SE? (104)TEST (109)T RANSITION TO S OUND IN F ILM (111)TEST (116)W ATER IN THE D ESERT (118)TEST (123)TPO13 (124)T YPES OF S OCIAL G ROUPS (124)TEST (128)B IOLOGICAL C LOCKS (129)TEST (134)M ETHODS OF S TUDYING I NFANT P ERCEPTION (135)TEST (140)TPO14 (141)C HILDREN AND A DVERTISING (141)TEST (146)M AYA W ATER P ROBLEMS (147)TEST (151)P ASTORALISM IN A NCIENT I NNER E URASIA (152)TEST (157)TPO21 (158)G EOTHERMAL E NERGY (158)TEST (163)T HE O RIGINS OF A GRICULTURE (165)TEST (169)A UTOBIOGRAPHICAL M EMORY (170)TEST (175)TPO22 (176)S PARTINA (176)TEST (181)T HE B IRTH OF P HOTOGRAPHY (183)TEST (187)T HE A LLENDE M ETEORITE (188)TEST (193)TPO23 (195)U RBAN C LIMATES (195)S EVENTEENTH-C ENTURY D UTCH A GRICULTURE (200)TEST (206)R OCK A RT OF THE A USTRALIAN A BORIGINES (207)TEST (212)ANSWER (214)TPO1GroundwaterGroundwater 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 was always 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 plugged with 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 ofform 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.Paragraph 1: 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, beforespace in the “solid” ground underfoot to hold all this water.1. Which of the following can be inferred from paragraph 1 about the ground that we walk on? It cannot hold rainwater for long periods of time.It prevents most groundwater from circulating.It has the capacity to store large amounts of water.It absorbs most of the water it contains from rivers.2. Th in the passage is closest in meaning toConfusingComfortingUnbelievableInterestingParagraph 2: 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 sandwherever 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 was always laden with pebbles, gravel, andFar awayHiddenPartly visibleInside pieces of sand and gravelOn top of beds of rockIn fast rivers that are flowing beneath the soilIn spaces between pieces of sedimentFast riversGlaciersThe huge volumes of water created by glacial meltingThe particles carried in water from melting glaciersParagraph 3: 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.6. All of the following are mentioned in paragraph 3 as places that sediment-laden rivers can deposit their sediments EXCEPTA mountain valleyFlat landA lake floorThe seafloorthe 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.CoverChangeSeparateSurroundtoo, contain millions of minute water-holding pores. This is because the gaps among theoriginal grains are often not totally with 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.That is enough aboutNow let us turn toOf greater concern areThis is related toassage is closet in meaning toWashedSoaked throughParagraph 6: 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.Paragraph 7: 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.10. According to paragraphs 6 and 7, why is basalt unlike most crystalline forms of rock?It is unusually solid.It often has high porosity.It has a low proportion of empty space.It is highly permeable.11. What is the main purpose of paragraph 7?To explain why water can flow through rockTo emphasize the large amount of empty space in all rockTo point out that a rock cannot be both porous and permeableTo distinguish between two related properties of rockParagraph 9: 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.12. 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.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.Water in rocks is held in place by large pores and drains away from small size pores through surface tension.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.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. Paragraph 8: 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.█13. Look at the four squares [█] that indicate where the following sentence could be added to the passage.Where would the sentence 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.Answer choicesSediments that hold water were spread by glaciers and are still spread by rivers and streams.Water is stored underground in beds of loose sand and gravel or in cemented sediment.The size of a saturated rock’s pores determines h ow much water it will retain when the rock is put in a dry place.Groundwater often remains underground for a long time before it emerges again.Like sandstone, basalt is a crystalline rock that is very porous.Beds of unconsolidated sediments are typically located at inland sites that were once underwater.TEST1.Words(10mins)1. saturate2. meteoric3. circulate4. precipitation5. incredible6. particle7. pebble8. unconsolidated9. gravel10. coarse11. sediment 12. laden13. outwash14. deposit15. fanwise16. overlie17. sandbar18. minute19. cement20. dissolve21. percolate22. crystalline23. solidify24. lava25. basalt26. permeability 27. cavity28. crevice29. tension30.film2.Sentences(20mins)1. 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.2. 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.3. 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.4. 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.5. 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.The Origins of TheaterIn seeking to describe the origins of theater, one must rely primarily on speculation, since there is little concrete evidence on which to draw. The most widely accepted theory, championed by anthropologists in the late nineteenth and early twentieth centuries, envisions theater as emerging out of myth and ritual. The process perceived by these anthropologists may be summarized briefly. During the early stages of its development, a society becomes aware of forces that appear to influence or control its food supply and well-being. Having little understanding of natural causes, it attributes both desirable and undesirable occurrences to supernatural or magical forces, and it searches for means to win the favor of these forces. Perceiving an apparent connection between certain actions performed by the group and the result it desires, the group repeats, refines and formalizes those actions into fixed ceremonies, or rituals.Stories (myths) may then grow up around a ritual. Frequently the myths include representatives of those supernatural forces that the rites celebrate or hope to influence. Performers may wear costumes and masks to represent the mythical characters orsophisticated, its conceptions of supernatural forces and causal relationships may change. As a result, it may abandon or modify some rites. But the myths that have grown up around the rites may continue as part of the group’s oral tradition and may even come to be acted out under conditions divorced from these rites. When this occurs, the first step has been taken toward theater as an autonomous activity, and thereafter entertainment and aesthetic values may gradually replace the former mystical and socially efficacious concerns.Although origin in ritual has long been the most popular, it is by no means the only theory about how the theater came into being. Storytelling has been proposed as one alternative. Under this theory, relating and listening to stories are seen as fundamental human pleasures. Thus, the recalling of an event (a hunt, battle, or other feat) is elaborated through the narrator’s pantomime and impersonation and eventually through each role being assumed by a different person.A closely related theory sees theater as evolving out of dances that are primarily pantomimic, rhythmical or gymnastic, or from imitations of animal noises and sounds. Admiration for the performer’s skill, virtuosity, and grace are seen as motivation for elaborating the activities into fully realized theatrical performances.In addition to exploring the possible antecedents of theater, scholars have also theorized about the motives that led people to develop theater. Why did theater develop, and why was it valued after it ceased to fulfill the function of ritual? Most answers fall back on the theories about the human mind and basic human needs. One, set forth by Aristotle in the fourth century B.C., sees humans as naturally imitative—as taking pleasure in imitating persons, things, and actions and in seeing such imitations. Another, advanced in the twentieth century, suggests that humans have a gift for fantasy, through which they seek to reshape reality into more satisfying forms than those encountered in daily life. Thus, fantasy or fiction (of which drama is one form) permits people to objectify their anxieties and fears, confront them, and fulfill their hopes in fiction if not fact. The theater, then, is one tool whereby people define and understand their world or escape from unpleasant realities.But neither the human imitative instinct nor a penchant for fantasy by itself leads to an autonomous theater. Therefore, additional explanations are needed. One necessary condition seems to be a somewhat detached view of human problems. For example, one sign of this condition is the appearance of the comic vision, since comedy requires sufficient detachment to view some deviations from social norms as ridiculous rather than as serious threats to the welfare of the entire group. Another condition that contributes to the development of autonomous theater is the emergence of the aesthetic sense. For example, some early societies ceased to consider certain rites essential to their well-being and abandoned them, nevertheless, they retained as parts of their oral tradition the myths that had grown up around the rites and admired them for their artistic qualities rather than for their religious usefulness.Paragraph 1:In seeking to describe the origins of theater, one must rely primarily on speculation, concrete evidence on which to draw. The most widelyaccepted by anthropologists in the late nineteenth and early twentieth centuries, emerging out of myth and ritual. The process perceived by these anthropologists may be summarized briefly. During the early stages of its development, a society becomes aware of forces that appear to influence food supply andwell-being. Having little understanding of natural causes, it both desirable and1.DebatedCreated2.LeavesLimitsContrasts3. According to paragraph 1, theories of the origins of theaterAre mainly hypotheticalAre well supported by factual evidenceHave rarely been agreed upon by anthropologistsWere expressed in the early stages of theater’s development4. According to paragraph 1, why did some societies develop and repeat ceremonial actions? To establish a positive connection between the members of the societyTo help society members better understand the forces controlling their food supplyTo distinguish their beliefs from those of other societiesTo increase the society’s prosperityParagraph 2: Stories (myths) may then grow up around a ritual. Frequently the myths include representatives of those supernatural forces that the rites celebrate or hope to influence. Performers may wear costumes and masks to represent the mythical characters or supernatural forces in the rituals or in accompanying celebrations. As a people becomes more sophisticated, its conceptions of supernatural forces and causal relationships may change. As a result, it may abandon or modify some rites. But the myths that have grown up around the rites may continue as part of the group’s oral tradThe divorce of ritual performers from the rest of societyThe separation of myths from rites6.ImportantIndependentEstablished7. According to paragraph 2, what may cause societies to abandon certain rites?Emphasizing theater as entertainmentDeveloping a new understanding of why events occurFinding a more sophisticated way of representing mythical charactersMoving from a primarily oral tradition to a more written traditionParagraph 5: In addition to exploring the possible antecedents of theater, scholars have also theorized about the motives that led people to develop theater. Why did theater develop, andwhy was it valued after it ceased to fulfill the function of ritual? Most answers fall back on the theories about the human mind and basic human needs. One, set forth by Aristotle in the fourth century B.C., sees humans as naturally imitative—as taking pleasure in imitating persons, things, and actions and in seeing such imitations. Another, advanced in the twentieth century, suggests that humans have a gift for fantasy, through which they seek to reshape reality into more satisfying forms than those encountered in daily life. Thus, fantasy or fiction (of which drama is one form) permits people to objectify their anxieties and fears, confront them, and fulfill their hopes in fiction if not fact. The theater, then, is one tool whereby people define and understand their world or escape from unpleasant realities.8. All of following are mentioned in paragraph 5 as possible reasons that led societies to develop theater EXCEPTTheater allows people to face that they are afraid of.Theater gives an opportunity to imagine a better reality.Theater is a way to enjoy imitating other people.Theater provides people the opportunity to better understand the human mind.9. Which of the following best describes the organization of paragraph 5?The author presents two theories for a historical phenomenon.The author argues against theories expressed earlier in the passage.The author argues for replacing older theories with a new one.Paragraph 6: But neither the human imitative instinct nor for fantasy by itself leads to an autonomous theater. Therefore, additional are needed. Oneone sign of this condition is the appearance of the comic vision, since requires serious threats to the welfare of the entire group. Another condition that contributes to the development of autonomous theater is the emergence of the aesthetic sense. For example, some early societies ceased to consider certain rites essential to their well-being and abandoned them, nevertheless, they retained as parts of their oral tradition the myths that had grown up around the rites and admired them for their artistic qualities rather than for their religious usefulness.10.T he word “penchant” in the passage is closest in meaning toCompromiseInclinationTraditionRespect11.Why does the author mention ?To explain how theater helps a society respond to threats to its welfareTo help explain why detachment is needed for the development of theaterTo show how theatrical performers become detached from other members of society 12.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 society’s rites were more likely to be retained in the oral tradition if its myths wereadmired for artistic qualities.The artistic quality of a myth was sometimes an essential reason for a society to abandon it from the oral tradition.Some early societies stopped using myths in their religious practices when rites ceased to be seen as useful for social well-being.Myths sometimes survived in a society’s tradition because of their artistic qualities even after they were no longer deemed religiously beneficial.Paragraph 3:█Although origin in ritual has long been the most popular, it is by no means the only theory about how the theater came into being.█ Storytelling has been proposed as one alternative. █Under this theory, relating and listening to stories are seen as fundamental human pleasures.█ Thus, the recalling of an event (a hunt, battle, or other feat) is elaborated through the narrator’s pantomime and impersonation and eventually through each role being assumed by a different person.13.Look at the four squares [█] that indicate where the following sentence could be added to the passage.To enhance their listener’s enjoyment, storytellers continually make their stores more engaging and memorable.Where would the sentence 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.Anthropologists have developed many theories to help understand why and how theater originated.Answer ChoicesThe presence of theater in almost all societies is thought to have occurred because early story tellers traveled to different groups to tell their stores.Many theorists believe that theater arises when societies act out myths to preserve social well-being.The more sophisticated societies became, the better they could influence desirable occurrences through ritualized theater.Some theories of theater development focus on how theater was used by group leaders to group leaders govern other members of society.Theater may have come from pleasure humans receive from storytelling and moving rhythmically.The human capacities for imitation and fantasy are considered possible reasons why societies develop theater.TEST1.Words(10mins)1.speculation2.champion3.envision4.perceive5.ritual6.attribute7.occurrence8.supernatural9.formalize10.refine11.mythical12.causal13.divorce14.autonomous15.aesthetic 16.efficacious17.feat18.elaborate19.pantomime20.impersonation21.pantomimic22.rhythmical23.gymnastic24.virtuosity25.antecedent26.theorize27.imitative28.objectify29.penchant30.detachment2.Sentences(20mins)1. Perceiving an apparent connection between certain actions performed by the group and the result it desires, the group repeats, refines and formalizes those actions into fixed ceremonies, or rituals.2. But the myths that have grown up around the rites may continue as p art of the group’s oral tradition and may even come to be acted out under conditions divorced from these rites.3. One, set forth by Aristotle in the fourth century B.C., sees humans as naturally imitative—as taking pleasure in imitating persons, things, and actions and in seeing such imitations.4. Another, advanced in the twentieth century, suggests that humans have a gift for fantasy, through which they seek to reshape reality into more satisfying forms than those encountered in daily life.。
托福资料之老托阅读100篇【完整版】
PASSAGE 33:关于做决定的研究
PASSAGE 34:城市的发展以及移民
PASSAGE 35:一种岩洞对观察天象的影响
PASSAGE 36:美国水彩画协会的发展
PASSAGE 37:人的声音对个性的影响
PASSAGE 38 :有关冰河时代的
PASSAGE 39:印第安人捕鱼的生活方式
PASSAGE 78:远古的文字
PASSAGE 79:动物行为的研究
PASSAGE 80:美国调查方式的实施
PASSAGE 81:木星的简介
PASSAGE 82:婴幼儿时期的模仿对人和动物的影响
PASSAGE 83:美国现实主义和自然主义作家介绍
PASSAGE 84:美国早期印刷业的内容
PASSAGE 85: 郁金香在北美殖民地的发展
PASSAGE 70:鸟搭窝的方式
PASSAGE 71:地理位置对城市发展的影响
PASSAGE 72:哈莱姆文艺复兴
PASSAGE 73:科技与工业化联系
PASSAGE 74:冰川的形成及融化
PASSAGE 75:早期狩猎对大型体格动物灭绝的影响
PASSAGE 76:泥土的形成及其用途
PSSAGE 77:生物灭绝的原因
PASSAGE 16:鸟的祖先
PASSAGE 17:鹦鹉产卵的方式
PASSAGE 18:女性对美国建立初期的贡献
PASSAGE 19:北美城市的发展
PASSAGE 20:壁炉的构造
PASSAGE 21:美国早期雕塑的发展
PASSAGE 22:北美城市的发展改革
PASSAGE 23:美国早期城市功能的发展
PASSAGE 94:美国工业化给美国经济带来的改变
老托福100篇答案
老托福100篇答案ANSWER KEYSPASSAGE 1 BBACC DBCDA BPASSAGE 2 AACCD CABD PASSAGE 3 BDCBB CBDAD CA PASSAGE 4 BBDBD CACA PASSAGE 5 DACCB DBBAD PASSAGE 6 DBDBC ACABD PASSAGE 7 BCDCD CBABB PASSAGE 8 DDCCB CADA PASSAGE 9 CBDBD BBAPASSAGE 10 ACDCA BCDBA PASSAGE 11 CAABD CADDPASSAGE 12 CDACB AACCB PASSAGE 13 AACAC CAD PASSAGE 14 DCABC DABAC DBA PASSAGE 15 DABDC CDCBD AB PASSAGE 16 DBBCA DCDCDA PASSAGE 17 DAACA DCBCD CA PASSAGE 18 BBBDB CCCDA PASSAGE 19 BBDDC DCBCA C PASSAGE 20 BCACD DCBAAPASSAGE 21 BDCAA BABDPASSAGE 22 CDBBD ABDDA PASSAGE 23 BBDBA ACADC DAC PASSAGE 24 BCBBC ADABA A PASSAGE 25 CABBB DDABC A PASSAGE 26 ADDBC DACBA PASSAGE 27 DADBC BBDBA D PASSAGE 28 ACBBA ABCBA PASSAGE 29 ACBDC ABDBPASSAGE 30 DABCC CBCB PASSAGE 31 BDCDD ACBBB CPASSAGE 32 CBDBA DACBD PASSAGE 33 ADADC ABDBB C PASSAGE 34 DCADB CDBBA B PASSAGE 35 CABCA BCDBA PASSAGE 36 BADCC BACBD C PASSAGE 37 BBADA BBCCD PASSAGE 38 BDBDB DAACD B PASSAGE 39 CDAAC BCABB DPASSAGE 40 BDDCC ABADCB PASSAGE 41 CBBCD CDADPASSAGE 42 CBDDA BCCAC DPASSAGE 43 BBCAA DPASSAGE 44 CBBCA D PASSAGE 45 BCADA DD PASSAGE 46 ACBDB ABC PASSAGE 47 DCBAD AC PASSAGE 48 DCBAD CCADD PASSAGE 49 BCCBA DBCBD BPASSAGE 50 DCCAC BBCAD PASSAGE 51 BCADB DADDPASSAGE 52 AABDA ADDBD PASSAGE 53 ACBDA ADBD PASSAGE 54 ACCBB DACD PASSAGE 55 ABCCB CABD PASSAGE 56 BDBCC ACAA PASSAGE 57 ABCCC DDAA PASSAGE 58 BABDB CDADC PASSAGE 59 ACBBA ACDBPASSAGE 60 DACDB BACCA PASSAGE 61 BCADD DCAPASSAGE 62 CABDC ABCBD PASSAGE 63 CBDCB ABDCB PASSAGE 64 DCABC AACADPASSAGE 65 BBADB DACCB PASSAGE 66 CABCD AAABD BPASSAGE 67 BDACB DADCD PASSAGE 68 BAADC CDADB C PASSAGE 69 BABCD ADDBBPASSAGE 70 BCDCB ADAD PASSAGE 71 DBCAD CDCDA BPASSAGE 72 BCCAD DCACA PASSAGE 73 CABCB CBDA PASSAGE 74 CBDAB AADBD PASSAGE 75 ADABC CCDCC PASSAGE 76 BACCD BBBC PASSAGE 77 BCDCD AADAB C PASSAGE 78 BDAAD DCCBD PASSAGE 79 BDBDC AACDB CPASSAGE 80 BCADB ADABA A PASSAGE 81 DABDD ACBDD ABPASSAGE 82 CBADD CCABD PASSAGE 83 CAADC BCBDD C PASSAGE 84 CCAAA BDDDB PASSAGE 85 CBADC CDCCB PASSAGE 86 BBDCC CADBD APASSAGE 87 ABBDB DCABDPASSAGE 88 ADBCA BBCD PASSAGE 89 CADAD ACBDPASSAGE 90 CCADB CACC PASSAGE 91 CBBAA DCACCPASSAGE 92 ABDAC DCCCC PASSAGE 93 CAACB DCBCA D PASSAGE 94 DBCAB CBBCA D PASSAGE 95 ABCCB ADBAAD PASSAGE 96 CBCDA ABACC PASSAGE 97 BCDAD CACDC PASSAGE 98 DCCBD DBBAC PASSAGE 99 CDCBC BCBAC D PASSAGE 100 BAACD DBCAA C。
托福阅读真题第22套
第2 2套Economic Decline in Europe during the14th CenturyParagraph1After three hundred years of impressive gains in wealth and population,Europe’s economy began to slow around1300.Several factors accounted for the decline.One of the most important,though perhaps the least dramatic to relate,was a shift in climate.The remarkably fair weather of the twelfth and thirteenth centuries took a decided turn for the worse in the fourteenth Chronicler’s comments,tree-ring examination,and pollen analysis all indicate that over the course of the fourteenth century Europe’s average annual temperature declined approximately two degrees Celsius—which may sound like very little at first,but if one considers current projections about the possible effects of global warming,in which the average annual temperature shift is only one degree Celsius,a rather different impression emerges.As the temperature dropped,shortening the summer growing season and affecting the resilience of certain vegetable species,the wind and rain increased.This meant that crop yields declined precipitously and the agricultural economy began to contract.As food supplies dwindled,costs rose accordingly and cut into the amount of capital that people had available for other purchases or investments.This in turn added to the gradual constriction of the commercial economy.1.The phrase“accounted for”in the passage is closest in meaning toA.predictedB.explainedC.typifiedD.worsened2.Why does the author mention“current projection about the possible effects of global warming”in the passage?A.To argue that global warming was a faction in the climate shift of the fourteenth century in EuropeB.To suggest that the current climate change is greater than the climate change in the fourteenth century in EuropeC.To show the direct connection between temperature changes in the fourteenth century and changes that are currently occurring in EuropeD.To emphasize the impact of the temperature changes that occurred duringthe fourteenth century in Europe.3.In paragraph1,all of the following are mentioned as factors that contributed to thedecline of the agricultural economy in the fourteenth century EXCEPTA.an increase in rain and windB.a shortened growing seasonC.the investment of capital in areas other than agricultureD.a significant drop in temperatureParagraph2Just as significant were changes in the geopolitics of the Mediterranean world.The decline of the Byzantine Empire,which had dominated the eastern Mediterranean, meant the interruption of trade routes to central and eastern Asia.The rise of new political powers signaled a new era in Mediterranean connections,one in which religious loyalty and ethnic fidelity mattered morethan commercial ties.Consequently the movement of goods and services between east and west began to slow.European interest in circumnavigating Africa and exploring westward into the Atlantic Ocean,in fact,originated in the desire into the trade with eastern Asia that had long sustained Europe’s economic growth.4.In paragraph2,the author implies that Byzantine EmpireA.allowed international trade from which Europe benefitedB.became a dominated force during the fourteenth centuryC.centered its rule on religion and ethnic tiesD.interrupted trade routes to Asia that had already been established5.According to paragraph2,European interest in exploring the coast of Africa and the Atlantic Ocean grew out of a wish toA.build a roadblock against Asian powersB.restore valuable trade with eastern AsiaC.create faster trade routes to eastern AsiaD.connect trade between the eastern Mediterranean and the Atlantic OceanParagraph3A more immediate cause of the sputtering economy was an observable absence;since the eleventh century there had been few significant changes in the technology of agriculture.Developments like the wheeled plow,the rotation of crops,and the use of natural fertilizer that had made possible the agricultural revolution of the past two hundred years had had no follow-up.Farming was still conducted in1300roughly the same way it had been done in1100,but with a considerably larger population to feed, there was little surplus left to generate fresh capital.As a consequence,food production fell perilously close to subsistence level.【Although the failure of agriculture to keep up with the growing population did not become a crisis until the fourteenth century,clear signs of the problem had already emerged by the middle of the thirteenth century,when occasionally low yields due to bad weather or social disruption revealed how perilous the balance between Europe’s population and its food supply had become.】Apart from territories beset by war,the tentativeness of thefood supply became evident first on the farmlands most recently brought under cultivation during the economic depression of the twelfth century.The less established farmers of these lands frequently did not have the means to survive successive poor harvests.Tenant farmers unable to pay their tents thus began to slip into debt,and landlords who depended on rents for their income began to rely increasingly on urban financiers for credit.6.According to paragraph3,what was one cause of the economic problems in Europe of the fourteenth century?A.Farming techniques produced insufficient amounts of foodB.Terntones that farmers had begun to use for agriculture for the first time were disrupted by warC.The technological improvements in farming made in earlier centuries were abandoned after1300D.Farming techniques used capital that was needed for investment in the development of technology7.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【Although the failure of agriculture to keep up with the growing population did not become a crisis until the fourteenth century,clear signs of the problem had already emerged by the middle of the thirteenth century,when occasionally low yields due to bad weather or social disruption revealed how perilous the balance between Europe’s population and its food supply had become.】A.Maintaining the population of Europe with existing food supplies continued to be a problem after the middle of the thirteenth centuryB.The delicate balance between population and food supply in Europe was apparent in years of poor harvest half a century before it became a crisis in the fourteenth centuryC.Clear sighs of the emerging crisis in Europe appeared in the thirteenth century in the form of bad weather,social unrest,and insufficient foodD.In the thirteenth century,a problem emerged in Europe when the food sufficient to feed the population only8.The word“considerably”in the passage is closest in meaning toA.significantlyB.increasinglyC.constantlyD.naturally9.It can be inferred from paragraph3that people who farmed on land recently brought under cultivation were at a bigger disadvantage than well-established farmersin fourteenth-century Europe becauseA.they land was located in areas that were engaged in warB.they relied on urban financiers for creditC.they had no surplus on which to live or money to pay their rentD.they did not use wheeled plows,rotate their crops,or use natural fertilizerParagraph4Even whole governments became entangled in the credit crisis,England being the most notable example.The cycle of indebtedness was hardly inevitable,but the string of bank failures and commercial collapses in the first half of the fourteenth century was striking.The famed Bardi and Peruzzi banks of Florence(the two largest financial houses of Europe)collapsed spectacularly in the1340’s.They were soon followed by the Riccardi bank of Lucca,whose massive loans had kept the English government afloat for years.Many more houses collapsed in turn.10.The word“striking”in the passage is closest in meaning toA.understandableB.necessaryC.limitingD.noteworthy11.Why does the author mention in the passage that the Bardi and Peruzzi banks were “the two largest financial houses of Europe”?A.To indicate the connection between Florence banks and the English governmentB.To emphasize the great impact that these bank failures had on the economyC.To compare the Bardi and Peruzzi banks with the Richard bankD.To indicate the success that these banks had previously achievedParagraph5An important demographic trend resulted from and contributed to the economic malaise:large-scale migration of rural populations into the cities.Europe’s overall population growth from1050to1300had been primarily due to an increase in the number of rural folk.But as economic forces made agrarian life more perilous around 1300,hard-pressed farmers and their families began to migrate to the cities in large number in search of work.Farms,villages,and entire regions were abandoned.Many cities doubled in size,and some even tripled,over the course of just one or two generations.Few were capable of absorbing such large numbers of people.12.Paragraph5suggests that the large-scale migration to cities resulted in which of the following?A.After two generations in the cities,migrants returned to agricultural lifeB.The overall population in Europe declinedC.Farmers worked in cities,and their families worked the landD.Cities contained large numbers of people who were unemployedParagraph5An important demographic trend resulted from and contributed to the economic malaise:large-scale migration of rural populations into the cities.Europe’s overall population growth from1050to1300had been primarily due to an increase in the number of rural folk.[A]But as economic forces made agrarian life more perilous around1300,hard-pressed farmers and theirfamilies began to migrate to the cities in large number in search of work.[B]Many cities doubled in size,and some even tripled,over the course of just one or two generations.[C]Few were capable of absorbing such large numbers of people.[D]13.Look at the four squares[]that indicates where the following sentence could be added to the passage.Farms,villages,and entire regions were abandoned.Where would the sentence best fit?14.Directions:An introductory sentence for a brief summary of the passage is provides plete 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 worth2points.The economic decline in Europe during the fourteenth century resulted from several factors.Answer choicesA.Climate changes affected agriculture production,which led to food shortages.B.The loss of trade with central and East Asia negatively impacted economic growth.C.England was among the nations that suffered a credit crisis.D.The performance of the commercial economy could not keep pace with the agricultural economy.E.The lack of innovation in agricultural technology affected food productionF.Migrations from city to rural areas led to an increase in the number of rural fork.Human Impacts on BiogeographyBiologists,who commonly study the distribution of plant and animal species in different environments—their biogeography—strive to develop interpretations or explanations of the patterns of species distribution,but these may be incorrect if the effects of human beings are not taken into consideration.In some cases,these effects may be accidental;for example,some species of rat were unintentionally transported aboard ships from Europe to the islands of the South Pacific.In other cases,species distributions may have been deliberately modified by human beings.The Polynesians in the South Pacific intentionally moved the kumara(sweet potato)to islands in that region to provide the population with a new food crop.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.(Biologists,who commonly study the distribution of pi ant and animal species in different environments—their biogeography—strive to develop interpretations or explanations of the patterns of species distribution,but these may be incorrect if the effects of human beings are not taken into consideration.)A.In biogeography it is common to consider and study the effects of plant and animal species as they are distributed within environments where humans live.B.Biologists who study environments in which pi ants and animals are distributed have arrived at interpretations or explanations for how species succeed,but these may not be correct.C.To understand plant and animal distribution patterns correctly,biologists must consider the role of hum an beings in the biogeography of speciesD.It is common for biologists who try to understand the effects of humans on their environments to be incorrect in their explanations of certain distribution patterns of plants and animals.2.In paragraph1,the author makes the point that the relocations of rats and the kumara to new environments differed inA.whether or not humans planned to transfer these species to a new environmentB.how far these species had to be transported to arrive at the new environmentC.how difficult it was for these species to become established in the new environmentD.whether or not these species succeeded in the new environmentThe relocation of species by humans(and more recently the imposition of restrictions on movement by way of national controls and world conventions)has been primarily for economic reasons and for environmental protection.For example,humans introduced Sitka spruce trees into Scotland and England from North America to use them as a timber crop.Similarly the Monterey pine tree was introduced into New Zealand in the nineteenth century from California and has become the most widely used species in the timber production industry in that country.The potato has been carried from its native home in the high Andes of South America,modified and developed into many varieties,and transported around the world because it can be used as a food crop.The plant formerly known as the Chinese gooseberry was relocated from its native China to New Zealand where an industry was established around the renamed kiwifruit.3.The word"formerly"in the passage is closest in meaning tomonlyB.previouslyC.officiallyD.interestingly4.In paragraph2,the author mentions Chinese gooseberries and the Monterey pine in order toA.contrast two plant species transplanted for different reasonsB.demonstrate how two extremely different species adapt to a similar environment in New ZealandC.offer evidence that newly introduced species can have unintended positive effects on the environmentD.provide examples of species moved for economic purposes5.The word"desirable"in the passage is closest in meaning toA.easy to spreadB.quick to establishC.wantedD.practical6.The word"relatively”in the passage is closest in meaning toparativelyB.surprisinglyC.extremelyD.at timesWe have extended the distribution of some species because of certain useful traits that make the species desirable beyond their former known range For example,willows have extensive root systems,can grow relatively quickly,and are now used in several countries worldwide to stabilize river margins as a flood protection measure.The distribution of willows has therefore been influenced considerably by human use in river bank management.7.According to paragraph3.why are willows a species that are now found in different countries worldwide?A.They adapt easily to a variety of environments.B.They have characteristics that make them useful in preserving river banks during floods.C.They have a root system that allows them to reproduce easily and live long.D.They require little care or management from humans.The effects of introduced species can be many and varied and can include effects on the distribution of other species.For example,the North American gray squirrel was introduced into England and has now largely displaced the native red squirrel.The accidental introduction of organisms to new areas may have major pest implications. The South African bronze butterfly,the larva(immature insect forms)of which feed on buds and other parts of geraniums and similar flowers,was accidentally introducedinto the Balearic Islands via imported geraniums.In its native South Africa,the distribution and abundance of the butterfly are affected in part by a native wasp that parasitizes(feeds on)the larvae.In the absence of the parasite wasp on the Balearic Islands off the coast of Spain,the butterfly has now spread to mainland Spain where its rapid spread has been accentuated by trade in garden plants and modem transport. The species has become a major pest due to the lack of a natural predator and is now causing great problems for the horticultural industry in Spain.8.The word"accentuated"in the passage is closest in meaning toA.controlledB.intensifiedC.explainedD.restricted9.What can be inferred from paragraph4about geraniums in South Africa as compared to geraniums in Spain and the Balearic Islands?A.The structural parts and buds of geraniums in South Africa differ from those of geraniums in Spain and the Balearic Islands.pared to the geraniums in Spain,the ones in South Africa are less likely to have bronze butterfly larvae as a pestC.Geraniums are less important to the horticulture industry in South Africa than they are to the horticultural industries tries of Spain and the Balearic Islands.D.Geraniums in South Africa ire traded more than the geraniums in Spain and the Balearic Islands are.10.According to paragraph4,why did the South African bronze butterfly become a major pest in Spain?A.Spain has a greater number of flowers for the butterflies to feed onB.The butterfly's larvae reach maturity more quickly in Spain than they do elsewhere.C.There are no natural predators of bronze butterfly larvae in SpainD.The species of geranium that is found in Spain is a more delicate garden plant and easier for pests to consume11.Paragraph4supports which of the following statement about the South African bronze butterfly?A.It was deliberately introduced into two new environments at the same timeB.Its spread on mainland Spain had a significant economic impactC.It changed its parasitizing behavior when it adapted to new environmentsD.Its presence on mainland Spain and the Balearic Islands caused other insect populations to increaseHuman-driven changes in the distribution of some species may result in hybridization (interbreeding)with other species and so have a genetic effect.For example,the North American cord grass was accidentally introduced to the south coast of England in theearly nineteenth century.It hybridized with the European cord grass and resulted in the production of a new species,which in this case is also a major pest plant of estuaries in England where it became dominant and extensive.Information about a species distribution(prior to human modification)maybe applied in pest control programs for the introduced species.Studies of the species in its native habitat may yield information about the factors that limit or influence its distribution and population dynamics.That information may then be applied in the development of strategies to contain and control the spread of pest species.For example, information about the role of the parasitic wasp in the ecology of the bronze butterfly may be utilized in the process of finding control strategies for that species on mainland Spain.12.Paragraph6returns to a discussion of the bronze buttery in order toA.demonstrate that information about species in their native habitat can be applied to controlling their spread in new habitatsB.emphasize the negative effects of parastic wasps on butterflies in generalC.further support the claim that the bronze butterfly was accidentally introduced to mainland SpainD.conclude by recommending the development of careful pest control strategies so that the ecology is not damaged13.Look at the four squares[■]that indicate where the following sentence could be added to the passage.Its presence there helps control the bronze butterfly population.Where would the sentence best fit?Click on a square[■]to add the sentence to the passage.The effects of introduced species can be many and varied and can include effects on the distribution of other species.For example,the North American gray squirrel was introduced into England and has now largely displaced the native red squirrel.The accidental introduction of organisms to new areas may have major pest implications.■The South African bronze butterfly,the larva(immature insect forms)of which feed on buds and other parts of geraniums and similar flowers,was accidentally introduced into the Balearic Islands via imported geraniums.■In its native South Africa,the distribution and abundance of the butterfly are affected in part by a native wasp that parasitizes(feeds on)the larvae.■In the absence of the parasite wasp on the Balearic Islands off the coast of Spain,the butterfly has now spread to mainland Spain where its rapid spread has been accentuated by trade in garden plants and modem transport.■The species has become a major pest due to the lack of a natural predator and is now causing great problems for the horticultural industry in Spain.14.A variety of factors,including human activity,can affect the distribution of species:Answer Choices1.Research has shown that the biogeography of species can change even without human interference as can be seen In the wide distribution of willows along a wide range of river banks.2.Introducing a species to a new environment can have unintended consequences such as those that occurred when a butterfly was relocated to an environment that lacked its natural predator.3.The success of relocating two species together depends on how they help each other survive in a new environment as demonstrated by the South African bronze butterfly and geraniums.4.The study of the relocations of certain species to new habitats has been difficult because it is not always clear if the relocations were natural or caused by humans.5.Humans have relocated species for a variety of reasons,including obtaining new food sources,creating new industries,and taking advantage of the characteristics of certain species6.Understanding the distribution of a species in its native habitat can be useful in controlling Its spread as a pest in Its new habitat.Economic Decline in Europe during the14th Century答案:B D C A B;A B A C D;B D B(ABE)Human Impacts on BiogeographyHuman Impacts on Biogeography答案:C A B D C;A B B B C;B A C256。
新托福阅读真题100篇
智课网TOEFL备考资料
新托福阅读真题100篇
摘要:考生复习托福阅读可以练习托福阅读真题,能够更加了解托福阅读的考试题型和考题难度,对于考生提高托福阅读水平有一定的帮助。
托福阅读是托福考试中出题量最大的科目,不少考生反应阅读难做。
小编建议考生在平时的复习中不妨多练习下托福阅读真题。
今天小编汇总了新托福阅读真题100篇,方便考生学习。
1. 树叶为何变颜色
2. 瑞典诺贝尔文学评委会
3. 民众抗命Civil Disobedience
4. 陨石坑Craters
5. 英法战争
6. 车票打孔与计算机雏形
7. 地衣LICHEN
8. 路易斯安娜洲购买后的皮毛买卖
9. 同步通讯卫星
10. 聊天对于南方女作家的社会影响
11. 睡眠
12. 人物(女)Amelia 和Muriel的男性化成长
13. 塑料
14. 芝加哥
15. 人物(男)雕塑家Frederic Remington
16. 动物身上为何不生出轮子
17. 树的生存方式
18. 摩天大楼—美国的特征
19. 加洲北水南调工程
20. 蜜蜂意识测试
21. Navajo人的起源
22. 为美国护士教育的抗争
23. 人物(女)建筑师Julia Morgan
24. 沼泽中的动物
25. 供求与市场价格
以上就是关于新托福阅读真题100篇的详细介绍,考生可以通过上方链接下载完整版托福阅读真题100篇进行练习。
完整版配有答案解析,考生答题完毕可以参照解析对题。
相关字搜索:新托福阅读真题100篇勤劳的蜜蜂有糖吃。
托福阅读真题100篇原文+题目(四)
托福阅读真题100篇原文+题目(四)PASSAGE 4The term Hudson River school was applied to the foremost representatives ofnineteenth-century North American landscape painting. Apparently unknown during the goldendays of the American landscape movement, which began around 1850 and lasted until the late1860's, the Hudson River school seems to have emerged in the 1870's as a direct result of thestruggle between the old and the new generations of artists, each to assert its own style as therepresentative American art. The older painters, most of whom were born before 1835, practicedin a mode often self-taught and monopolized by landscape subject matter and were securelyestablished in and fostered by the reigning American art organization, the National Academy ofDesign. The younger painters returning home from training in Europe worked more with figuralsubject matter and in a bold and impressionistic technique; their prospects for patronage in theirown country were uncertain, and they sought to attract it by attaining academic recognition inNew York. One of the results of the conflict between the two factions was that what in previousyears had been referred to as the American, native, or, occasionally, New York school — the mostrepresentative school of American art in any genre — had by 1890 become firmly established inthe minds of critics and public alike as the Hudson River school.The sobriquet was first applied around 1879. While it was not intended as flattering, it washardly inappropriate. The Academicians at whom it was aimed had worked and socialized in NewYork, the Hudson's port city, and had painted the river and its shores with varying frequency.Most important, perhaps, was that they had all maintained with a certain fidelity a manner oftechnique and composition consistent with those of America's first popular landscape artist,Thomas Cole, who built a career painting the Catskill Mountain scenery bordering the HudsonRiver. A possible implication in the term applied to the group of landscapists was that many ofthem had, like Cole,lived on or near the banks of the Hudson. Further, the river had long servedas the principal route to other sketching grounds favored by the Academicians, particularly theAdirondacks and the mountains of Vermont and New Hampshire.1. What does the passage mainly discuss?(A) The National Academy of Design(B) Paintings that featured the Hudson River(C) North American landscape paintings(D) The training of American artists in European academies(A) Figural painting(B) Landscape painting(C) Impressionistic painting(D) Historical painting3. The word struggle in line 5 is closest in meaning to(A) connection(B) distance(C) communication(D) competition4. The word monopolized in line 7 is closest in meaning to(A) alarmed(B) dominated(C) repelled(D) pursued5. According to the passage , what was the function of the National Academy of Design for thepainters born before 1835?(A) It mediated conflicts between artists.(B) It supervised the incorporation of new artistic techniques.(C) It determined which subjects were appropriate.(D) It supported their growth and development.6. The word it in line 12 refers to(A) matter(B) technique(C) patronage(D) country7. The word factions in line 13 is closest in meaning to(A) sides(B) people(C) cities(D) images8. The word flattering in line 18 is closest in meaning to(A) expressive(B) serious(C) complimentary(D) flashy9. Where did the younger generation of painters receive its artistic training?(A) In Europe(B) In the Adirondacks(C) In Vermont(D) In New Hampshire答案:1-9 BBDBD CACA。
托福阅读真题第22篇The_Columbian_Exchange(答案文章最后)
2021年托福阅读真题第22篇The Columbia… The Columbian ExchangeWhen Christopher Columbus and his men became the first Europeans to arrive in the Americas in 1492, they set in motion a process of cultural, economic, and environmental exchange that had profound effects for the whole world. For the "old," Afro-Eurasian world, an important transformation included the addition of valuable new food items into the diets of people in such widely separated regions as Ireland, China, and sub-Saharan- Africa.For the"new,"American world, the most significant transformation involved the deadly effects of Afro-Eurasian diseases among its peoples, which in turn helped pave the way for imperial conquest by Europeans. After two centuries of what is now known as the Columbian Exchange, both Old and New Worlds were transformed. About 12,000 years ago, the land bridge linking the Americas with Afro-Eurasia across the Bering Strait disappeared as a result of rising sea levels. As a result, the peoples of the Americas were almost completely separated from Old World peoples until the Spaniards arrived in 1492. In other words, for twelve millennia the people as well as the plants and animals of the Americas developed in isolation from Afro-Eurasia according to the specific environmental conditions of the Americas. Some human developments were similar: for example, agriculture and writing developed in the Americas just as they had done in Afro-Eurasia, as did the birth of hierarchical societies and patriarchies (societies headed by the eldest male. In other ways, however, developments in the Americasfollowed a different course from those of the Old World. For example, plant species such as corn, potatoes, and tobacco were unique to the Americas, and thus American peoples had a different set of choices regarding possible domesticated crops. Just as importantly, not long after humans arrived in the Americas, all of the large mammals that existed there became extinct. As a result, when humans in the Americas began to turn to settled agriculture, they did not have the choice to domesticate large mammals such as cattle or horses. Because of this, American societies did not develop innovations like the wheel, which proved unnecessary without large animals to pull carts or push plows. Furthermore, other animals familiar across much of Afro-Eurasia-including sheep, pigs, chickens, and goats-were nonexistent in the Americas. In fact, the only animals that could be domesticated available to American peoples were the dog, the turkey (in North America), the llama/alpaca and guinea pig(in the Andes region of South America), and the Muscovy duck(in the South American tropics).The absence of animals that could be domesticated is critical because in the Old World the domestication of animals such as sheep, chickens, goats, and cattle contributed greatly to the development of serious diseases such as influenza, smallpox, measles, and pertussis. In fact, many of these serious diseases resulted from microbes that were first present in herds of domesticated animals and then made the jump from their animal hosts to human hosts. The jump was made much easier because early Afro-Eurasian communities that relied on domesticated animals for food and labor tended to live in close proximity to their herds- even keeping them inside their houses for protection or warmth. Over time, a number of these microbial jumps occurred between domesticated animals andhumans. In addition, because of the land connections across much of Afro-Eurasian , these diseases were able to spread to many Old World populations While these diseases continued to be serious for the peoples of Afro-Eurasia, the human populations that survived them over the generations tended to pass on an acquired partial immunity to theiroffspring.Without many animals that could be domesticated and living in enforced separation from Old World peoples, the people of the Americas remained freer from the type of contagious diseases that so often plagued the Old World. Some contagious diseases did exist, to be sure, and included dysentery, pneumonia, and possibly syphilis. But the“crowd”diseases of the Old World that flourished in crowds of large, centralized populations of humans did not exist, which meant that American peoples—when exposed to them—had no immunity whatsoever. Therefore, when Europeans carrying these diseases inadvertently spread them among American peoples, sickness spread rapidly, resulting in many deaths.1.When Christopher Columbus and his men became the first Europeans to arrive in the Americas in 1492, they set in motion a process of cultural, economic, and environmental exchange that had profound effects for the whole world. For the "old," Afro-Eurasian world, an important transformation included the addition of valuable new food items into the diets of people in such widely separated regions as Ireland, China, and sub-Saharan- Africa.For the"new,"American world, the most significant transformation involved the deadly effects of Afro-Eurasian diseases among its peoples, which in turn helped pave the way for imperial conquest by Europeans. After two centuries of what is now known as the Columbian Exchange, both Old and New Worlds were transformed.2.About 12,000 years ago, the land bridge linking the Americas with Afro-Eurasia across the Bering Strait disappeared as a result of rising sea levels. As a result, the peoples of the Americas were almost completely separated from Old World peoples until the Spaniards arrived in 1492. In other words, for twelve millennia the people as well as the plants and animals of the Americas developed in isolation from Afro-Eurasia according to the specific environmental conditions of the Americas. Some human developments were similar: for example, agriculture and writing developed in the Americas just as they had done in Afro-Eurasia, as did the birth of hierarchical societies and patriarchies (societies headed by the eldest male. In other ways, however, developments in the Americas followed a different course from those of the Old World. For example, plant species such as corn, potatoes, and tobacco were unique to the Americas, and thus American peoples had a different set of choices regarding possible domesticated crops. Just as importantly, not long after humans arrived in the Americas, all of the large mammals that existed there became extinct. As a result, when humans in the Americas began to turn to settled agriculture, they did not have the choice to domesticate large mammals such as cattle or horses. Because of this, American societies did not develop innovations like the wheel, which proved unnecessary without large animals to pull carts or push plows. Furthermore, other animals familiar across much of Afro-Eurasia-including sheep, pigs, chickens, and goats-were nonexistent in the Americas. In fact, the only animals that could be domesticated available to American peoples were the dog, the turkey (in North America), the llama/alpaca and guinea pig(in the Andes region of South America), and the Muscovy duck(in the South American tropics).3.Some human developments were similar: for example, agriculture and writing developed in the Americas just as they had done in Afro-Eurasia, as did the birth of hierarchical societies and patriarchies (societies headed by the eldest male. In other ways, however, developments in the Americas followed a different course from those of the Old World. For example, plant species such as corn, potatoes, and tobacco were unique to the Americas, and thus American peoples had a different set of choices regarding possible domesticated crops. Just as importantly, not long after humans arrived in the Americas, all of the large mammals that existed there became extinct. As a result, when humans in the Americas began to turn to settled agriculture, they did not have the choice to domesticate large mammals such as cattle or horses. Because of this, American societies did not develop innovations like the wheel, which proved unnecessary without large animals to pull carts or push plows. Furthermore, other animals familiar across much of Afro-Eurasia-including sheep, pigs, chickens, and goats-were nonexistent in the Americas. In fact, the only animals that could be domesticated available to American peoples were the dog, the turkey (in North America), the llama/alpaca and guinea pig(in the Andes region of South America), and the Muscovy duck(in the South American tropics).4.Some human developments were similar: for example, agriculture and writing developed in the Americas just as they had done in Afro-Eurasia, as did the birth of hierarchical societies and patriarchies (societies headed by the eldest male. In other ways, however, developments in the Americas followed a different course from those of the Old World. For example, plant species such as corn, potatoes, and tobacco were unique to the Americas, and thus American peoples had a different set of choices regarding possible domesticated crops. Just as importantly, not long after humans arrived in the Americas, all of the large mammals that existed there became extinct. As a result, when humans in the Americas began to turn to settled agriculture, they did not have the choice to domesticate large mammals such as cattle or horses. Because of this, American societies did not develop innovations like the wheel, which proved unnecessary without large animals to pull carts or push plows. Furthermore, other animals familiar across much of Afro-Eurasia-including sheep, pigs, chickens, and goats-were nonexistent in the Americas. In fact, the only animals that could be domesticated available to American peoples were the dog, the turkey (in North America), the llama/alpaca and guinea pig(in the Andes region of South America), and the Muscovy duck(in the South American tropics).5.The absence of animals that could be domesticated is critical because in the Old World the domestication of animals such as sheep, chickens, goats, and cattle contributed greatly to the development of serious diseases such as influenza, smallpox, measles, and pertussis. In fact, many of these serious diseases resulted from microbes that were first present in herds of domesticated animals and then made the jump from their animal hosts to human hosts. The jump was made much easier because early Afro-Eurasian communities that relied on domesticated animals for food and labor tended to live in close proximity to their herds- even keeping them inside their houses for protection or warmth. Over time, a number of these microbial jumps occurred between domesticated animals and humans. In addition, because of the land connections across much of Afro-Eurasian , these diseases were able to spread to many Old World populations While these diseases continued to be serious for the peoples of Afro-Eurasia, the human populations that survived them over the generations tended to pass on an acquired partial immunity to theiroffspring.6.The absence of animals that could be domesticated is critical because in the Old World the domestication of animals such as sheep, chickens, goats, and cattle contributed greatly to the development of serious diseases such as influenza, smallpox, measles, and pertussis. In fact, many of these serious diseases resulted from microbes that were first present in herds of domesticated animals and then made the jump from their animal hosts to human hosts. The jump was made much easier because early Afro-Eurasian communities that relied on domesticated animals for food and labor tended to live in close proximity to their herds- even keeping them inside their houses for protection or warmth. Over time, a number of these microbial jumps occurred between domesticated animals and humans. In addition, because of the land connections across much of Afro-Eurasian , these diseases were able to spread to many Old World populations While these diseases continued to be serious for the peoples of Afro-Eurasia, the human populations that survived them over the generations tended to pass on an acquired partial immunity to theiroffspring.7.Without many animals that could be domesticated and living in enforced separation from Old World peoples, the people of the Americas remained freer from the type of contagious diseases that so often plagued the Old World. Some contagious diseases did exist, to be sure, and included dysentery, pneumonia, and possibly syphilis. But the“crowd”diseases of the Old World that flourished in crowds of large, centralized populations of humans did not exist, which meant that American peoples—when exposed to them—had no immunity whatsoever. Therefore, when Europeans carrying these diseases inadvertently spread them among American peoples, sickness spread rapidly, resulting in many deaths.8.Without many animals that could be domesticated and living in enforced separation from Old World peoples, the people of the Americas remained freer from the type of contagious diseases that so often plagued the Old World. Some contagious diseases did exist, to be sure, and includeddysentery, pneumonia, and possibly syphilis. But the“crowd”diseases of the Old World that flourished in crowds of large, centralized populations of humans did not exist, which meant that American peoples—when exposed to them—had no immunity whatsoever. Therefore, when Europeans carrying these diseases inadvertently spread them among American peoples, sickness spread rapidly, resulting in many deaths.9.When Christopher Columbus and his men became the first Europeans to arrive in the Americas in 1492, they set in motion a process of cultural, economic, and environmental exchange that had profound effects for the whole world.⬛For the "old," Afro-Eurasian world, an important transformation included the addition of valuable new food items into the diets of people in such widely separated regions as Ireland, China, and sub-Saharan- Africa.For the"new,"American world, the most significant transformation involved the deadly effects of Afro-Eurasian diseases among its peoples, which in turn helped pave the way for imperial conquest by Europeans. ⬛After two centuries of what is now known as the Columbian Exchange, both Old and New Worlds were transformed. About 12,000 years ago, the land bridge linking the Americas with Afro-Eurasia across the Bering Strait disappeared as a result of rising sea levels. ⬛As a result, the peoples of the Americas were almost completely separated from Old World peoples until the Spaniards arrived in 1492.⬛In other words, for twelve millennia the people as well as the plants and animals of the Americas developed in isolation from Afro-Eurasia according to the specific environmental conditions of the Americas.10.1.B2.C3.A4.A5.D6.D7.D8.A9.A10.CDE。
【2018年整理】托福阅读真题100篇汇总更新
智课网TOEFL备考资料托福阅读真题100篇汇总更新摘要:托福阅读真题100篇已经为大家整理好了,想要提高你的托福阅读成绩,就要利用往年的真题来进行练习,所以有需要的就赶快来下载吧!托福阅读真题100篇During most of their lives, surge glaciers behave like normal glaciers, traveling perhaps only a couple of inches per day. However, at intervals of 10 to 100 years, these glaciers move forward up to 100 times faster than usual. The surge often progresses along a glacier like a great wave, proceeding from one section to another. Subglacial streams of meltwater might act as a lubricant, allowing the glacier to flow rapidly toward the sea. The increasing water pressure under the glacier might lift it off its bed, overcoming the friction between ice and rock, thus freeing the glacier, which rapidly sliders downhill. Surge glaciers also might be influenced by the climate, volcanic heat, or earthquakes. However, many of these glaciers exist in the same area as normal glaciers, often almost side by side.Some 800 years ago, Alaska's Hubbard Glacier advanced toward the sea, retreated, and advanced again 500 years later. Since 1895, this seventy-mile-long river of ice has been flowing steadily toward the Gulf of Alaska at a rate of approximately 200 feet per year. In June 1986, however, the glacier surged ahead as much as 47 feet a day. Meanwhile, a western tributary, called Valerie Glacier, advanced up to 112 feet a day. Hubbard's surge closed off Russell Fiord with a formidable ice dam, some 2,500 feet wide and up to 800 feet high, whose caged waters threatened the town of Yakutat to the south.About 20 similar glaciers around the Gulf of Alaska are heading toward the sea. If enough surge glaciers reach the ocean and raise sea levels, west Antarctic ice shelves could rise off the seafloor and become adrift. A flood of ice would then surge into the Southern Sea. With the continued rise in sea level, more ice would plunge into the ocean, causing sea levels to rise even higher, which in turn would release more ice and set in motion a vicious cycle. The additional sea ice floating toward the tropics would increase Earth's albedo and lower global temperatures, perhaps enough to initiate a new ice age. This situation appears to have occurred at the end of the last warminterglacial (the time between glacations), called the Sangamon, when sea ice cooled the ocean dramatically, spawning the beginning of the Ice Age.想要史上最全的托福阅读真题吗?赶快来下载小马 app机经库吧,包含了史上最全的托福考试真题以及机经预测,让大家的托福阅读备考更加有效!小马托福APP1. What is the main topic of the passage ?(A) The classification of different types of surge glaciers(B) The causes and consequences of surge glaciers(C) The definition of a surge glacier(D) The history of a particular surge glacier2. The word "intervals" in line 2 is closest in meaning to(A) records(B) speeds(C) distances(D) periods3. The author compares the surging motion of a surge glacier to the movement of a(A) fish(B) wave(C) machine(D) boat4. Which of the following does the author mention as a possible cause of surging glaciers?(A) The decline in sea levels(B) The occurrence of unusually large ocean waves(C) The shifting Antarctic ice shelves(D) The pressure of meltwater underneath the glacier5. The word "freeing" in line 7 is closest in meaning to(A) pushing(B) releasing(C) strengthening(D) draining6. According to the passage , the Hubbard Glacier(A) moves more often than the Valerie Glacier(B) began movement toward the sea in 1895(C) is 800 feet wide(D) has moved as fast as 47 feet per day7. Yakutat is the name of(A) an Alaskan town(B) the last ice age(C) a surge glacier(D) an Antarctic ice shelf8. The word "plunge" in line 22 is closest in meaning to(A) drop(B) extend(C) melt(D) drift9. The term "vicious cycle" in line 24 refers to the(A) movement pattern of surge glaciers(B) effect surge glaciers could have on the temperature of tropical areas(C) effect that repeated rising sea levels might have on glacial ice(D) constant threat surge glaciers could pose to the Gulf of Alaska10. The author provides a definition for which of the following terms?(A) tributary (line 15)(B) ice dam (line 16)(C) albedo (line 25)(D) interglacial(line 26)11. Which of the following statements is supported by the passage ?(A) The movement of surge glaciers can be prevented.(B) The next ice age could be caused by surge glaciers.(C) Surge glaciers help to support Antarctic ice shelves.(D) Normal glaciers have little effect on Earth's climate.正确答案: BDBDB DAACD B以上就是为大家整理的托福阅读真题100篇内容,希望对大家的托福备考有所帮助,预祝大家在考试中取得好成绩!相关字搜索:托福阅读真题100篇。
托福阅读真题100篇原文+题目(二)
托福阅读真题100篇原文+题目(二)PASSAGE 2The geology of the Earth's surface is dominated by the particular properties of water. Presenton Earth in solid, liquid, and gaseous states, water is exceptionally reactive. It dissolves,transports, and precipitates many chemical compounds and is constantly modifying the face ofthe Earth.Evaporated from the oceans, water vapor forms clouds, some of which are transported bywind over the continents. Condensation from the clouds provides the essential agent ofcontinental erosion: rain. Precipitated onto the ground, the water trickles down to form brooks,streams, and rivers, constituting what are called the hydrographic network. This immensepolarized network channels the water toward a single receptacle: an ocean. Gravity dominatesthis entire step in the cycle because water tends to minimize its potential energy by running fromhigh altitudes toward the reference point, that is, sea level.The rate at which a molecule of water passes though the cycle is not random but is a measureof the relative size of the various reservoirs. If we define residence time as the average time for awater molecule to pass through one of the three reservoirs — atmosphere, continent, and ocean— we see that the times are very different. A water molecule stays, on average, eleven days inthe atmosphere, one hundred years on a continent and forty thousand years in the ocean. Thislast figure shows the importance of the ocean as the principal reservoir of the hydrosphere butalso the rapidity of water transport on the continents.A vast chemical separation process takes places during the flow of water over the continents.Soluble ions such as calcium, sodium, potassium, and some magnesium are dissolved andtransported. Insoluble ions such as aluminum, iron, and silicon stay where they are and form thethin, fertile skin of soil on which vegetation can grow. Sometimes soils are destroyed andtransported mechanically during flooding. The erosion of the continentsthus results from twoclosely linked and interdependent processes, chemical erosion and mechanical erosion. Theirrespective interactions and efficiency depend on different factors.1. The word modifying in line 4 is closest in meaning to(A) changing(B) traveling(C) describing(D) destroying2. The word which in line 5 refers to(A) clouds(B) oceans(C) continents(D) compounds3. According to the passage , clouds are primarily formed by water(A) precipitating onto the ground(B) changing from a solid to a liquid state(C) evaporating from the oceans(D) being carried by wind4. The passage suggests that the purpose of the hydrographic network (line 8) is to(A) determine the size of molecules of water(B) prevent soil erosion caused by flooding(C) move water from the Earth's surface to the oceans(D) regulate the rate of water flow from streams and rivers5. What determines the rate at which a molecule of water moves through the cycle, as discussed in the third paragraph?(A) The potential energy contained in water(B) The effects of atmospheric pressure on chemical compounds(C) The amounts of rainfall that fall on the continents(D) The relative size of the water storage areas6. The word rapidity in line 19 is closest in meaning to(A) significance(B) method(C) swiftness(D) reliability7. The word they in line 24 refers to(A) insoluble ions(B) soluble ions(C) soils(D) continents8. All of the following are example of soluble ions EXCEPT(A) magnesium(B) iron(C) potassium(D) calcium9. The word efficiency in line 27 is closest in meaning to(A) relationship(B) growth(C) influence(D) effectiveness答案:1-9 AACCD CABD。
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托福阅读真题100篇原文+题目(二十二) 很多同学在备考托福阅读的过程中,总是找不到合适的备考资料。
三立教育在这里为大家整理了托福阅读真题100篇。
相信这些真题能够辅助大家更好地来完成托福阅读备考。
PASSAGE 22Throughout the nineteenth century and into the twentieth, citizens of the United States maintained a bias against big cities. Most lived on farms and in small towns and believed cities to be centers of corruption, crime, poverty, and moral degradation. Their distrust was caused, in part, by a national ideology that proclaimed farming the greatest occupation and rural living superior to urban living. This attitude prevailed even as the number of urban dwellers increased and cities became an essential feature of the national landscape. Gradually, economic reality overcame ideology. Thousands abandoned the precarious life on the farm for more secure and better paying jobs in the city. But when these people migrated from the countryside, they carried their fears and suspicious with them. These new urbanities, already convinced that cities were overwhelmed with great problems, eagerly embraced the progressive reforms that promised to bring order out of the chaos of the city.One of many reforms came in the area of public utilities. Water and sewerage systems were usually operated by municipal governments, but the gas and electric networks were privately owned. Reformers feared that the privately owned utility companies would charge exorbitant rates for these essential services and deliver them only to people who could afford them. Some city and state governments responded by regulating the utility companies, but a number of cities began to supply these services themselves. Proponents of these reforms argued that public ownership and regulation would insure widespread access to these utilities and guarantee a fair price.While some reforms focused on government and public behavior, others looked at the cities as a whole. Civic leaders, convinced that physical environment influenced human behavior, argued that cities should develop master plans to guide their future growth and development. City planning was nothing new, but the rapid industrialization and urban growth of the late nineteenth century took place without any consideration for order. Urban renewal in the twentieth century followed several courses. Some cities introduced plans to completely rebuild the city core. Most other cities contented themselves with zoning plans for regulating future growth. Certain parts of town were restricted to residential use, while others were set aside for industrial or commercial development.1. What does the passage mainly discuss?(A) A comparison of urban and rural life in the early twentieth century(B) The role of government in twentieth century urban renewal(C) Efforts to improve urban life in the early twentieth century(D) Methods of controlling urban growth in the twentieth century2. The word bias in line 2 is closest in meaning to(A) diagonal(B) slope(C) distortion(D) prejudice3. The first paragraph suggests that most people who lived in rural areas(A) were suspicious of their neighbors(B) were very proud of their lifestyle(C) believed city government had too much power(D) wanted to move to the cities4. In the early twentieth century, many rural dwellers migrated to the city in order to(A) participate in the urban reform movement(B) seek financial security(C) comply with a government ordinance(D) avoid crime and corruption5. The word embraced in line 11 is closest in meaning to(A) suggested(B) overestimated(C) demanded(D) welcomed6. What concern did reformers have about privately owned utility companies?(A) They feared the services would not be made available to all city dwellers.(B) They believed private ownership would slow economic growth(C) They did not trust the companies to obey the government regulations.(D) They wanted to ensure that the services would be provided to rural areas.7. The word exorbitant in line 16 is closest in meaning to(A) additional(B) expensive(C) various(D) modified8. All of the following were the direct result of public utility reforms EXCEPT(A) local governments determined the rates charged by private utility companies(B) some utility companies were owned and operated by local governments(C) the availability of services was regulated by local government(D) private utility companies were required to pay a fee to local governments9. The word Proponents in line 18 is closest in meaning to(A) Experts(B) Pioneers(C) Reviewers(D) Supporters10. Why does the author mention industrialization (line 24)?(A) To explain how fast urban growth led to poorly designed cities(B) To emphasize the economic importance of urban areas(C) To suggest that labor disputes had become an urban problem(D) To illustrate the need for construction of new factories答案:CDBBD ABDDA。