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TPO 26 阅读+答案+译文+解析

TPO 26 阅读+答案+译文+解析

TPO 26Energy and the Industrial RevolutionPARAGRAPH 1For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.PARAGRAPH 2In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a 1 variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift to increased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain's most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the M consequent increase in coal production was made possible as the steam-powered pumps drained water from theever-deeper coal seams found below the water table.PARAGRAPH 3The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industry expanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.PARAGRAPH 4Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in j mining operations to move bigger loads, but horses were still the primary source of power. However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. Also, the availability of jobs in railway Jj construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.参考答案PARAGRAPH 1For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy orto power machinery. This was to occur with progress in the development of the steam engine.1、Why does the author provide the information that "Great Britain had large amounts of coal"? To reject the claim that Britain was facing an energy shortage in the eighteenth centuryTo explain why coal rather than other energy resources became the primary source of heat for homes and industries in eighteenth-century BritainTo indicate that Britain's energy shortage was not the result of a lack of fuelTo explain why coal mining became an important industry in nineteenth-century2、What was "the problem of energy" that had to be solved to make the Industrial Revolution of the eighteenth century possible?Water and wind could not be used efficiently.There was no efficient way to power machinery.Steam engines required large amounts of coal, which was in short supply.Neither humans nor animals were strong enough to provide the power required for industrial application.PARAGRAPH 2In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a 1 variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steampower to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift to increased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain's most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the M consequent increase in coal production was made possible as the steam-powered pumps drained water from theever-deeper coal seams found below the water table.3、Which of the following is NOT mentioned in paragraph 2 as a development in cotton mills brought about by Watt's steam engine?The importing of huge quantities of raw cotton by BritainIncreased mechanizationMore possibilities for mill locationSmaller mills4、The phrase "apparent in" in the passage is closest in meaning toclearly seen inaid inassociated withfollowed By5、According to paragraph 2, what was Britain's most important export by 1850?Raw cottonCotton clothSteam-powered pumpsCoal6、The word "consequent" in the passage is closest in meaning toresultingencouragingwell documentedimmediate7、What is the role of paragraph 2 in the passage as a whole?It explains how by increasing the supply of raw materials from other countries, British industries were able to reduce costs and increase production.It explains how the production of mechanical energy and its benefits spread quickly across countries that were linked commercially with Great Britain.It demonstrates why developments in a single industry could not have caused the Industrial Revolution.It illustrates why historians have assigned igreat importance to the issue of energy in the rise of the Industrial Revolution.PARAGRAPH 3The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industry expanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.8、According to paragraph 3, why was the use of coke important for the iron industry?It helped make wood into charcoal.It reduced the dependency on steam-powered machines used for the production of iron.It replaced charcoal in the production of raw and refined iron.It powered the machines used to extract coal in coal mines.9、According to paragraph 3, all of the following were true of the iron industry in Great Britain during the 1800s EXCEPT:Steam-driven bellows were used to prHlice raw iron.By the 1850s Britain was the world's largest producer of iron.Steam-powered mills made it possible to produce iron of different shapes and sizes.Greater demand for higher-quality iron increased its price.PARAGRAPH 4Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in j mining operations to move bigger loads, but horses were still the primary source of power. ■ However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. ■ As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. ■ Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expandcapa city, or to seek alternative investment opportunities. ■ Also, the availability of jobs in railway Jj construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.10、The word "initiated" in the passage is closest in meaning toanticipatedacceleratedspreadstarted11、Paragraph 4 implies which of the following about the transformation in rail transportation? Because railway construction employed mostly rural laborers, unemployment increased among urban workers.It resulted in more trade within the country, but less trade with markets that could be reached only by ocean shipping.It made shipping freight overland to distant markets less expensive.It resulted in higher wages for factory workers.12、The phrase "accustomed to" in the passage is closest in meaning toin need ofused totired ofencouraged by13、Look at the f our squares [■] that indicatewhere the following sentence could be added to the passage.The first steam-powered locomotives were slow but they rapidly improved in speed and carrying capacity.14、Direction: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.The coming of the Industrial Revolution in eighteenth-century Britain depended on the development of the steam engine to power machinery.Answer ChoicesA. For years, historians disregarded the issue of energy as a major element in the rise of the IndustrialRevolution and focused instead on technological developments and increased production. B. The introduction and growth of steam-powered rail transport was a major factor in Britain's economic expansion during the Industrial Revolution.C. An expansion of the Industrial Revolution outside Great Britain occurred when British industries began to import raw cotton and high-quality iron.D. By 1850, the use of steam power in Britain's mills, mines, and iron industry made Britain a world leader in the production of cotton cloth and iron.E. Since the basic infrastructure was in place, the Industrial Revolution fueled itself with enlarging marketsrequiring ever more expansion of factories and workforce.F. By the end of the 1800s, railway construction attracted so many laborers that factories could not find enough workers to keep up with increasing sales.Energy and the Industrial Revolution能源和工业革命——翻译by@英语词汇精华陈鹏飞文章词汇总结☻steam engine蒸汽机;☻iron industry钢铁行业;☻productivity生产力;☻mechanize机械化;☻coal煤☻efficiency效率☻working class工人阶级☻Industrial Revolution工业革命;文章中英文对照For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power. Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts ofcoal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.数年来,历史学家一直试图界定18世纪工业革命中工业、科技、和经济实力崛起的关键因素。

托福TPO26口语Task4阅读文本+听力文本+题目+满分范文

托福TPO26口语Task4阅读文本+听力文本+题目+满分范文

为了帮助大家高效备考托福,为大家带来托福TPO26口语Task4阅读文本+听力文本+题目+满分范文,希望对大家备考有所帮助。

托福TPO26口语Task4阅读文本: Epiphytes In rain forests, the canopy produced by the upper layer of branches may be so dense that few plants can grow on the shady ground below. Even so, many plants have adapted to life in the rain forest, developing fascinating strategies for survival. For example, various species known as epiphytes use a host plant as a platform for growth. Although epiphytes grow on a host tree, they take no nutrients from the tree itself. Attached to the tree, sometimes 30 or 40 meters high, these aerial plants have access to sunlight but not to nutrients from the soil below. As a result, they have developed unusual mechanisms that have allowed them to overcome this problem. 托福TPO26口语Task4听力文本: Now listen to part of a lecture from a biology class. (male professor) OK, so a good example of this type of plant, common to the rainforest, is the Urn plant. The Urn plant wraps its roots around the branches of the trees or sometimes around the trunk near the upper part of the tree. They use the tree for support and this allows them to reside high in the trees, in the canopy, where they can get plenty of sunlight.Now, the Urn plant has a unique shape. It got its name because of the formation of its leaves creates a kind of urn or bowl where it can store water. The Urn plant has rather long stiff spiky leaves. The leaves are slightly overlapping and are tightly rolled into a kind of cone shape or a funnel shape. Its flowers are held on a single stem in the center. Anyway, as I mentioned, the arrangement of the leaves forms a kind of receptacle or bowl at the base so that it is rainwater collects on the leaves it rolls down into the bowl where it can be stored.OK, so is unique shape helps it gather and store water. It also helps to gather other nutrients. This is because insects, dead leaves from other plants or other debris land on the leaves and then get washed down into the stored water. Gradually they decompose. The chemical break-down creates a nitrogen-rich food source in the stored water. So, the water supply contains a kind of liquid fertilizer that can be released to the plant whenever it needs the food. 托福TPO26口语Task4题目: Using the example of the Urn plant, explain how epiphytes have adapted to life in the rain forest. 托福TPO26口语Task4满分范文: Epiphytes is a kind of rain forest plant that uses a host plant as a platform for growth to get sunlight. And it also develops some mechanism to get nutrients since it's away from the soil. For example, Urn plant often wraps its root around the tree or the trunk of upper part of the tree so it resides high in the canopy to get plenty of sunlight. Then it has leaves of unique shape which help it get nutrients. Its leaves are long, stiff and spiky. They're slightly overlapping and rolled tightly to form a funnel/cone shape, and then its flowers are held on a single stem in the center. So the whole thing is shaped into a bowl. And when it rains, the rain water rolls down to be collected in the bowl. Then the debris of dead leaves and insects falls into the bowl and decomposes there to form a kind of fertilizer, which can be used by the plant when in need. (166 words) 以上是给大家整理的托福TPO26口语Task4阅读文本+听力文本+题目+满分范文,希望对你有所帮助!。

托福阅读TPO26原文

托福阅读TPO26原文

智课网TOEFL备考资料托福阅读TPO26原文摘要:托福TPO是曾经考过的托福考试真题的汇集,提前认真做好托福TPO题集能够让我们准确了解托福考题最新动向,出题点在哪里?今天小编就来接着为大家介绍托福阅读TPO26原文:Energy and the Industrial Revolution,希望对大家会有一定的帮助。

托福阅读TPO26原文:Energy and the Industrial Revolution托福阅读 TPO26原文:The Formation of Volcanic IslandsEarth’s surface is not made up of a single sheet of rock that forms a crust but rather a number of “tectonic plates” that fit closely, like the pieces of a giant jigsaw puzzle. Some plates carry i slands or continents others form the seafloor. All are slowly moving because the plates float on a denser semi-liquid mantle, the layer between the crust and Earth’s core. The plates have edges that are spreading ridges (where two plates are moving apart and new seafloor is being created), subduction zones (where two plates collide and one plunges beneath the other), or transform faults (where two plates neither converge nor diverge but merely move past one another). It is at the boundaries between plates t hat most of Earth’s volcanism and earthquake activity occur.Generally speaking, the interiors of plates are geologically uneventful. However, there are exceptions. A glance at a map of the Pacific Ocean reveals that there are many islands far out at sea that are actually volcanoes----many no longer active, some overgrown with coral----that originated from activity at points in the interior of the Pacific Plate that forms the Pacific seafloor.How can volcanic activity occur so far from a plate boundary? The Hawaiian Islands provide a very instructive answer. Like many other island groups, they form a chain. The Hawaiian Islands Chain extends northwest from the island of Hawaii. In the 1840s American geologist James Daly observed that the different Hawaii islands seem to share a similar geologic evolution but are progressively more eroded, and therefore probable older, toward the northwest. Then in 1963, in the early days of the development of the theory of plate tectonics. Canadian geophysicist Tuzo Wilson realized that this age progression could result if the islands were formed on a surface plate moving over a fixed volcanic source in the interior. Wilson suggested that the long chain ofvolcanoes stretching northwest from Hawaii is simply the surface expression of a long-lived volcanic source located beneath the tectonic plate in the mantle. Today’s most northwest island would have been the first to form. They as the plate moved slowly northwest, new volcanic islands would have forms as the plate moved over the volcanic source. The most recent island, Hawaii, would be at the end of the chain and is now over the volcanic source.Although this idea was not immediately accepted, the dating of lavas in the Hawaii (and other) chains showed that their ages increase away from the presently active volcano, just as Daly had suggested. Wilson’s analysis of these data is now a central part of plate tectonics. Most volcanoes that occur in the interiors of plates are believed to be produced by mantle plumes, columns of molten rock that rise from deep within the mantle. A volcano remains an active “hot spot” as long as it is over the plume. The plumes apparently originate at great depths, perhaps as deep as the boundary between the core and the mantle, and many have been active for a very long time. The oldest volcanoes in the Hawaii hot-spot trail have ages close to 80 million years. Other islands, including Tahiti and Easter Islands in the pacific, Reunion and Mauritius in the India Ocean, andin deed most of the large islands in the world’s oceans, owe their existence to mantle plumes.The oceanic volcanic islands and their hot-spot trails are thus especially useful for geologist because they record the past locations of the plate over a fixed source. They therefore permit the reconstruction of the process of seafloor spreading, and consequently of the geography of continents and of ocean basins in the past. For example, given the current position of the Pacific Plate, Hawaii is above the Pacific Ocean hot spot. So the position of The Pacific Plate 50 million years ago can be determined by moving it such that a 50-million-year-oil volcano in the hot-spot trail sits at the location of Hawaii today. However because the ocean basins really are short-lived features on geologic times scale, reconstruction the world’s geography by backtracking along the hot-spot trail works only for the last 5 percent or so of geologic time.Paragraph 1:1.The author mentions “spreading ridges”, “subduction zones”, and “transform faults” in order toO illustrate that the boundaries of tectonic plates are neat, thin linesO explain why some tectonic plates carry islands or continents while others form the seafloorO explain the complex nature of the edges of tectonic platesO provide examples of areas of tectonic plates where little geologic action occurs2. The word “converge” in the passage is closest in meaning toO expandO formO riseO move closerParagraph 2: 3.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 informationO Volcanic activity is responsible for the formation of the Pacific seafloor in the interior of the Pacific Plate.O Many volcanoes in the Pacific Ocean are no longer active and have become islands that support coral.O There are many islands in the Pacific Ocean that originated as volcanoes in the interior of the Pacific Plate.O The map of the Pacific Ocean reveals fewer volcanic islands than there truly are because many are no longer active and some are completely overgrown with coral.Paragraph 3:4. The word “instructive” in the passage is closest in meaning toO clearO detailedO informativeO familiar5. The word “eroded” in the passage is closest in meaning toO worm downO scatteredO developedO deserted6.In paragraph 3, what is the relationship between the scientific contribution of James Daly and Tuzo Wilson?O Wilson provided an explanation for the observations made by Daly.O Wilson challenged the theory proposed by Daly.O Wilson found numerous examples of island chains that supported Daly’s theory.O Wilson popularized the explanation of volcanic island formation formulated by Daly.Paragraph 4: 7.Why does the author provide the information that “the dating of lavas in the Hawaii (and other) chains showed that their ages increase away from the presently active volcano”?O To point out differences between the Hawaii island chain and other volcanic island chainsO To question the idea that all the islands in an island chain have been formed by volcanic activityO To explain why Wilson hypothesis was initially difficult to acceptO To prov ide evidence in support of Daly’s and Wilson’s ideas about how the Hawaii islands were formed8.According to paragraph 4, which of the following is true of mantle plumesO They exist close to the surface of tectonic plates.O They cause most of the volcanic activity that occurs in the interiors of plates.O They are rarely active for long period of time.O They get increasingly older away from the present hot spots.Paragraph 5:9.According to paragraph 5, volcanic islands help geologists toO reconstruct past geographyO detect changes in mantle plumesO measure the rigidity of tectonic platesO explain why the seafloor spreads10.What can be inferred about the Pacific Plate from paragraph 5?O The hot spots on the Pacific Plate are much older than the ones located on the other tectonic plates.O Most of the volcanic sources beneath the Pacific Plate have become extinct.O The Pacific Plate has moved a distance equal to the length of the Hawaiian Island chain in the past 80 million years.O The Pacific Plate is located above fewer mantle plumes than other plates are.11. The word “current” in the passage is closest in meaning toO originalO idealO relativeO present12.According to paragraph 5, why are geologists unable to trace back the entire geologic ofcontinents from hot-spot trails?O Hot spots have existed for only about 5 percent of geologic time.O Hawaii did not exist 50 millions years ago.O Oceanic basins that contained old hot-spot trails disappeared a long time ago.O Hot-spot trails can be reconstructed only for island chains.Paragraph 3: 13.Look at the four squares [] that indicate where the following sentence could be added to the passage.This pattern remained unexplained for a long time.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.Although volcanic activity is concentrated on the edge of tectonic plates, such activity can occur in the interiors of plates as well.Answer ChoicesO Our understanding of islands comes from Daly’s and Wilson’s observations of the Hawaiian Islands, which was later confirmed by plate-tectonic theory.O The hot-spot trails formed by volcanic island chains indicate the positions of tectonic plates as for back as the present ocean basins have existed.O Whereas volcanic islands formed by mantle plumes are typically small, most of the world’s largest islands are formed at the edges of tectonic plates.O It has only recently been discovered that tectonic plates are closely fitting rather than loosely constructed, as geologist previously believed.O Volcanic island chains such as the Hawaiian Islands form in the interior of a tectonic plate as the plate moves over a fixed volcanic source in the mantle.O The Pacific Plate has existed for as long as the Hawaiian Islands have existed, namely for more than 80 million years.托福阅读TPO26原文:参考答案1.○32.○43.○34.○35.○16.○17.○48.○29.○1 10.○3 11.○4 12.○3 13.○414. Our understanding of islands comes…Whereas volcanic islands…It has only recently been…托福阅读TPO26原文:答案解析:第一题,C,修辞目的题。

托福TPO26口语Task3阅读文本+听力文本+题目+满分范文

托福TPO26口语Task3阅读文本+听力文本+题目+满分范文

为了帮助大家高效备考托福,为大家带来托福TPO26口语Task3阅读文本+听力文本+题目+满分范文,希望对大家备考有所帮助。

托福TPO26口语Task3阅读文本: Advisor Meetings Should No Longer Be Required At present, students are required to meet with their academic advisors before the beginning of every semester. The advisors help students select courses and advise them on graduation requirements. However, I don’t see the point of required meetings, since the necessary information about the courses is already available on the university’s Web site, which all students have access to. In addition, eliminating meetings with advisors would ease the difficulty that students often have in finding a time to schedule a meeting when both they and their advisors are free. Sincerely, Amy Williams 托福TPO26口语Task3听力文本: Now listen to two students discussing the letter. (man) Did you see this letter? (woman) Yeah, why? (man) Well, I don't agree. It's definitely not the same thing to just go on the university's Web site. (woman) You don't think so? (man) No, I mean, sure, the basic information is there, but that's not all advisors help you with. Sometimes there're different ways you can meet a requirement for graduation, like, different classes you can take. And if you talk to someone, they can help you figure it out. (woman) And you can't get that from just reading what's on the Web site. (man) Right, advisors have a lot of expert information so they make it easier for you to see what your choices are. (woman) I see what you mean. (man) And as for scheduling meetings, I've never had that kind of trouble. (woman) Me neither. (man) So anyone who does have problems must be waiting to the last minute to set something up. (woman) That's possible. (man) I mean, the thing is, if you call or go to the office early enough to set up an appointment, schedules are open. It’s just that if you wait till the last possible day, it’ll be harder cause they already have lots of students scheduled then. 托福TPO26口语Task3题目: The man expresses his opinion about the proposal in the letter. Briefly summarize the proposal then state his opinion and explain the reasons he gives for holding that opinion. 托福TPO26口语Task3满分范文: Well, the proposal says that the students should not be required to meet with their advisors who help to select courses and give advice mainly on graduation requirements for two reasons. However the man disagrees for two main reasons. Firstly, he thinks that the advisors could help the students with more than the basic information on the Internet. For example, there are different ways to meet the requirements for the graduation and with the help from the advisors the students can easily figure it out, because the advisors have the expert information and can judge the students, choices easier. Secondly, he believes if the students could set up the appointment ahead of time instead of leaving it to the last minute, it will be no problem to schedule their meeting. So the man is against the proposal. 以上是给大家整理的托福TPO26口语Task3阅读文本+听力文本+题目+满分范文,希望对你有所帮助!。

tpo26-Energy and the Industrial Revolution解析

tpo26-Energy and the Industrial Revolution解析

参考答案:1.○ 32.○ 23.○ 44.○ 15.○ 26.○ 17.○ 48.○ 39.○ 410.○ 411.○ 312.○ 213.○ 214 ○ The introduction and growth of steam-powered rail transport was a major factor in Britain's economic expansion during the Industrial Revolution.○ By 1850, the use of steam power in Britain's mills, mines, and iron industry made Britain a world leader in the production of cotton cloth and iron.○ Since the basic infrastructure was in place, the Industrial Revolution fueled itself with enlarging markets requiring ever more expansion of factories and workforce.参考译文:能源与工业革命多年来,历史学家试图找到18世纪工业革命在工业、技术和经济领域兴起的关键因素,许多人把能源问题放在突出位置。

直到18世纪,人们依靠工厂、畜力以及人力来提供动力。

高效地利用水能和风能有助于完成诸如抽泵、碾磨或航海等工作。

然而,到了18世纪,尤其是大不列颠却经历了能源短缺。

木材,这一为家庭和工业供暖供能,同时也以加工木炭的形式被使用在钢铁工业中的主要能源,其供应量日益减少。

大不列颠有大量的煤矿;然而,还没有产生机械能或为机器提供动力的有效方法。

这一切随着蒸汽机的改良而发生。

在18世纪末期,詹姆斯•瓦特设计了一款高效且具商业利益的蒸汽机,由于其价格低廉,很快就被运用到各项工业生产之中。

托福TPO26口语Task3阅读文本+听力文本+题目+满分范文

托福TPO26口语Task3阅读文本+听力文本+题目+满分范文

托福TPO26口语Task3阅读文本+听力文本+题目+满分范文为了帮助大家高效备考托福,为大家带来托福TPO26口语T ask3阅读文本+听力文本+题目+满分范文,希望对大家备考有所帮助。

托福TPO26口语Task3阅读文本:Advisor Meetings Should No Longer Be RequiredAt present, students are required to meet with their academic advisors before the beginning of every semester. The advisors help students select courses and advise them on graduation requirements. However, I don’t see the point of required meetings, since the necessary information about the courses is already available on the university’s Web site, which all students have access to. In addition, eliminating meetings with advisors would ease the difficulty that students often have in finding a time to schedule a meeting when both they and their advisors are free.Sincerely,Amy Williams托福TPO26口语Task3听力文本:Now listen to two students discussing the letter.(man) Did you see this letter?(woman) Yeah, why?(man) Well, I don't agree. It's definitely not the same thing to just go on the university's Web site.(woman) You don't think so?(man) No, I mean, sure, the basic information is there, but that's not all advisors help you with. Sometimes there're different ways you can meet a requirement for graduation, like, different classes you can take. And if you talk to someone, they can help you figure it out.(woman) And you can't get that from just reading what's on the Web site.(man) Right, advisors have a lot of expert information so they make it easier for you to see what your choices are.(woman) I see what you mean.(man) And as for scheduling meetings, I've never had that kind of trouble.(woman) Me neither.(man) So anyone who does have problems must be waiting to the last minute to set something up.(woman) That's possible.(man) I mean, the thing is, if you call or go to the office early enough to set up an appointment, schedules are open. It’s just that if you wait till the last possible day, it’ll be harder cause they already have lots of students scheduled then.托福TPO26口语Task3题目:The man expresses his opinion about the proposal in the letter. Briefly summarize the proposal then state his opinion and explain the reasons he gives for holding that opinion.托福TPO26口语Task3满分范文:Well, the proposal says that the students should not be required to meet with their advisors who help to select courses and give advice mainly on graduation requirements for two reasons. However the man disagrees for two main reasons. Firstly, he thinks that the advisors could help the students with more than the basic information on the Internet. For example, there are different ways to meet the requirements for the graduation and with the help from the advisors the students can easily figure it out, because the advisors have the expert information and can judge the students, choices easier. Secondly, he believes if thestudents could set up the appointment ahead of time instead of leaving it to the last minute, it will be no problem to schedule their meeting. So the man is against the proposal.以上是给大家整理的托福TPO26口语T ask3阅读文本+听力文本+题目+满分范文,希望对你有所帮助!。

tpo26阅读及答案

tpo26阅读及答案

tpo26阅读及答案T0EFL考试成绩两年内有效,两年以后需要T0EFL成绩者,必须重新参加考试。

下面是小编为你们准备的关于tpo26阅读SUMER AND THE FIRST CITIES OF THE ANCIENT NEAR EAST答案,希望能帮助你们。

tpo26阅读SUMER AND THE FIRST CITIES OF THE ANCIENT NEAR EAST1. A选项的rainfall和B的melting snow做关键词定位至第五句,都正确,不选;C的silt确实讲过,但并没讲damaged crops,所以C错,选;D的timber, stone and metals定位至第四句,正确,不选2. 以elite to emerge做关键词定位至尾句,但这句话的these说明应该往前看,上句的this was done说明应该继续往前,前句说organization of irrigation和building canals非常重要,所以正确答案是D。

没再往前是因为已经有答案了。

A的new crop没提,B和C 犯了类似的错误,原文讲土壤肥沃,不是人有钱,所以都错3. sustain维持,所以正确答案是maintain,tain做词根表持有。

原文讲正式这些导致精英阶级的产生,并通过控制剩余产品来怎么样自身的存在,其他选项都不好,比如defend自身的存在前提是要受到威胁,而原文根本没这事儿,promote也不对,原文没讲elite要扩张4. 两个专有名词做关键词定位至第二句,说这两个族是以temple 为中心发展的,也就是B说的religious buildings,所以答案是B。

A 和C的urban settlement,D的destroy原文都没说5. sovereign统治者,至高无上的,所以正确答案是B。

代入,跟sovereign of all other gods并列的是the god of the sky,天神和其他神的什么,可以推出是管其他神的人,就像玉皇大帝和诸神,尽管creator创造者代入也说的算通,但天神不一定能和创造其他神的人并列吧,counselor和defender更不靠谱6. 以appearance of writing做关键词定位至第一个括号之后那句,说越来越复杂的管理体系导致了writing,所以正确答案是A。

托福TPO26阅读Passage1原文文本+题目+答案解析

托福TPO26阅读Passage1原文文本+题目+答案解析

¡¡¡¡ÎªÁË°ïÖú´ó¼Ò¸ßЧ±¸¿¼Íи££¬Îª´ó¼Ò´øÀ´Íи£TPO26ÔĶÁPassage1Ô-ÎÄÎı¾+ÌâÄ¿+´ð°¸½âÎö£¬Ï£Íû¶Ô´ó¼Ò±¸¿¼ÓÐËù°ïÖú¡£¡¡¡¡¨ Íи£TPO26ÔĶÁPassage1Ô-ÎÄÎı¾£º¡¡¡¡Energy and the Industrial Revolution¡¡¡¡PARAGRAPH 1¡¡¡¡For years historians have sought to identify crucialelements in the eighteenth-century rise in industry,technology,and economic power Known as theIndustrial Revolution,and many give prominence tothe problem of energy.Until the eighteenth century,people relied on energy derived from plants as well asanimal and human muscle to provide powerIncreased efficiency in the use of water and wind helped with such tasks as pumping,milling,or sailing.However,by the eighteenth century,Great Britain in particular was experiencing anenergy shortage.Wood,the primary source of heat for homes and industries and also used inthe iron industry as processed charcoal,was diminishing in supply.Great Britain had largeamounts of coal;however,there were not yet efficient means by which to producemechanical energy or to power machinery.This was to occur with progress in thedevelopment of the steam engine.¡¡¡¡PARAGRAPH 2¡¡¡¡In the late 1700s James Watt designed an efficient and commercially viable steam enginethat was soon applied to a 1 variety of industrial uses as it became cheaper to use.The enginehelped solve the problem of draining coal mines of groundwater and increased the productionof coal needed to power steam engines elsewhere.A rotary engine attached to the steam engineenabled shafts to be turned and machines to be driven,resulting in mills using steam power tospin and weave cotton.Since the steam engine was fired by coal,the large mills did not needto be located by rivers,as had mills that used water-driven machines.The shift to increasedmechanization in cotton production is apparent in the import of raw cotton and the sale ofcotton goods.Between 1760 and 1850,the amount of raw cotton imported increased 230times.Production of British cotton goods increased sixtyfold,and cotton cloth became GreatBritain's most important product,accounting for one-half of all exports.The success of thesteam engine resulted in increased demands for coal,and the M consequent increase in coalproduction was made possible as the steam-powered pumps drained water from the ever-deeper coal seams found below the water table.¡¡¡¡PARAGRAPH 3¡¡¡¡The availability of steam power and the demands for new machines facilitated thetransformation of the iron industry.Charcoal,made from wood and thus in limited supply,was replaced with coal-derived coke(substance left after coal is heated)assteam-drivenbellows came into use for producing of raw iron.Impurities were burnt away with the use ofcoke,producing a high-quality refined iron.Reduced cost was also instrumental indeveloping steam-powered rolling mills capable of producing finished iron of various shapesand sizes.The resulting boom in the iron industry expanded the annual iron output by morethan 170 times between 1740 and 1840,and by the 1850s Great Britain was producing moretons of iron than the rest of the world combined.The developments in the iron industry were inpart a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.¡¡¡¡PARAGRAPH 4¡¡¡¡Steam power and iron combined to revolutionize transport,which in turn had furtherimplications.Improvements in road construction and sailing had occurred,but shipping heavyfreight over land remained expensive,even with the use of rivers and canals wherever possible.Parallel rails had long been used in j mining operations to move bigger loads,but horses werestill the primary source of power.However,the arrival of the steam engine initiated acomplete transformation in rail transportation,entrenching and expanding the IndustrialRevolution.As transportation improved,distant and larger markets within the nation could bereached,thereby encouraging the development of larger factories to keep pace with increasingsales.Greater productivity and rising demands provided entrepreneurs with profits that couldbe reinvested to take advantage of new technologies to further expand capacity,or to seekalternative investment opportunities.Also,the availability of jobs in railway Jj constructionattracted many rural laborers accustomed to seasonal and temporary employment.Whenthe work was completed,many moved to other construction jobs or to factory work in citiesand towns,where they became part of an expanding working class.¡¡¡¡PARAGRAPH 1¡¡¡¡For years historians have sought to identify crucial elements in the eighteenth-century rise inindustry,technology,and economic power Known as the Industrial Revolution,and many giveprominence to the problem of energy.Until the eighteenth century,people relied on energyderived from plants as well as animal and human muscle to provide power Increased efficiencyin the use of water and wind helped with such tasks as pumping,milling,or sailing.However,by the eighteenth century,Great Britain in particular was experiencing an energy shortage.Wood,the primary source of heat for homes and industries and also used in the iron industryas processed charcoal,was diminishing in supply.Great Britain had large amounts of coal;however,there were not yet efficient means by which to produce mechanical energy or topower machinery.This was to occur with progress in the development of the steam engine.¡¡¡¡¨ Íи£TPO26ÔĶÁPassage1ÌâÄ¿£º。

TPO-26 Reading 3解析

TPO-26 Reading 3解析

Q1正确答案:C解析:这是一道基于第一段的反向事实信息题,属于分散列举。

A项对应Rainfall was limited;B项对应the annual flood of melted snow;D项对应There were few natural resources, no timber, stone, or metals;排除法选C,C项与Once this was done and the silt carried down by the rivers was planted矛盾。

Q2正确答案:D解析:根据关键词elite,定位到第一段最后一句话,大意是“这些条件促使精英阶级产生,他们作为组织阶级,通过控制多余粮食来维持阶级”,定位到上文出现“条件”的句子,the organization of irrigation, the building of canals to channel。

精英阶级控制多余粮食,而产生大量粮食的条件是运河的建造,对应D。

原文只是说作物的量增加了,没有说品种改良,排除A;文中未比较人与人之间财富的多少,排除B和C。

Q3正确答案:C解析:sustain,维持,使保持,使稳定持续;近义词是maintain。

根据词汇所在句大意:“这些条件促使精英阶级产生,他们作为组织阶级,通过控制多余粮食来维持阶级”。

Q4正确答案:B解析:定位词Eridu and Uruk,定位句The earliest, that of Eridu, about 4500 B.C.E., and Uruk, a thousand years later, center on impressive temple complexes built of mud brick,B项是对temple complexes(庙宇建筑群)的同义改写;A、C、D 在文中均没有依据。

Q5正确答案:B解析:sovereign,君主;近义词是master,主人。

tpo阅读26第2篇第2题

tpo阅读26第2篇第2题

TPO阅读26第2篇第2题题目要求阅读文章后,回答以下问题:The passage suggests that one of the main reasons why the development of means other than whales for producing oil for lamps was slow was primarily that:A、different forms of oil were not as efficient for producing light as whale oilB、manufacturers were not willing to invest in new technologyC、many potential substitutes for whale oil already had established marketsD、the supply of whales was more than sufficient to meet the demand for oil答案解析该题询问了为什么除鲸外的其他生产石油灯台的方法发展缓慢的原因。

文章提到,尽管有其他可用的灯油替代品,但它们一直没有能够与鲸油竞争。

所以,推断出正确答案是A:不同的油形式并不像鲸油那样高效产生光亮。

正文解析本文主要介绍了在19世纪的时候,随着人们使用油灯以及精心设计的灯泡技术,石油作为照明燃料逐渐开始取代鲸油。

然而,正如题目所指的,为什么石油取代鲸油的发展比较缓慢呢?本文将详细分析出发点并回答此问题。

第一段:文章首先介绍了鲸油在照明领域的重要性以及随着灯泡技术发展,人们开始探索其他燃料的目的。

然后,文章指出鲸油独一无二的属性,这些属性使其在照明方面具有重要意义。

例如,鲸油有独特的鲸蜡,这使得它的燃烧时间更长,并且产生更亮的光。

这使得鲸油成为照明领域的首选燃料。

第二段:然而,随着时间的推移,鲸油供应的问题逐渐浮出水面。

tpo26-Sumer and the First Cities of the Ancient Near East解析

tpo26-Sumer and the First Cities of the Ancient Near East解析

答案:1. ○32. ○43. ○34. ○25. ○ 26. ○17. ○48. ○39. ○210. ○ 111. ○112. ○413. ○114. ○ Writing appeared in the form of logograms and later developed into a system using signs to represent syllables rather than whole words.○The earliest city states had one or more patron gods and were built around central temple complexes.○ The development of the wheel and the creation of bronze were important innovations in Sumer苏美尔与古代近东的第一个城邦古代西亚地区最早的城邦出现在美索不达米亚平原的最南边,这个位于底格里斯河和幼发拉底河之间如今被称为伊拉克的地区。

5 000年前,正是在这里出现了苏美尔文明的早期形态。

乍看之下,这个平原并不像是一个(古老)文明的发源地。

这里自然资源稀缺,木材、石料以及金属都极其匮乏。

降雨量有限,当地水资源的主要来源是每年冰雪融化导致的冲过平原的洪水。

因为该平原在方圆500公里内的海拔落差只有20米,所以河床(的位置)不断地发生变化。

这就使得灌溉系统的规划至关重要,特别是(如何)建造水渠以疏导和保存水资源。

这些灌溉工程完成以及河流冲积下的淤泥就会沉积在此处,带来的回报相当可观:其产出量会比靠雨水滋润的土地高出4~5倍。

正是这些环境条件使得在该地诞生了一个可能充当管理阶层的“精英”,这一阶层通过对余粮的控制来养活自己。

很难把导致苏美尔文明进一步发展,即城市聚居点的出现的诸多因素孤立起来看待。

托福阅读TPO26答案解析

托福阅读TPO26答案解析

1.【考点分析】本题为修辞目的题,注意此类题目并不是考例子本身,而是要寻找其修辞的目的,然后与选项进行对比。

关键词为“英国有大量的煤”,在此前的几句话说大英帝国能源短缺,举例说明作为主要热源的木材供应减少,燃煤多但不能有效地转化成机械能。

这说明什么呢,这说明英国的能源短缺不是因为燃料缺乏,选C.【选项分析】A. 为了反对“18世纪英国面临能源短缺”的说法(根据原文,煤储量大这一事实,并不是构成反对能源短缺说的理由,这一选项与原文矛盾)B.为了解释为什么是煤,而不是其它能源变成了18世纪英国的主要民用与工业热量来源。

(偷梁换柱型干扰项。

根据本段倒数第3句话,当时主要的能量来源是木材)C.为了表明英国的能源短缺不是缺乏燃料所致(正确:not the result of a lack of fuel 与原文的had large amounts of coal 形成对应)D.该选项是玩穿越,本段并没有提到19世纪,更没有提到采煤成为19世纪主要行业)2. 【考点分析】本题为细节题,考察利用关键词定位以及对同一含义的不同词汇与句子结构的理解能力。

要想让18世纪的工业革命成为可能,一定要得以解决的“能源方面的问题”是什么?根据第一段前半部分,能源是工业革命兴起的主要原因毋庸置疑,那么能源问题是什么呢?根据关键词“the problem of energy” 定位到倒数第2句话:”Great Britain had large amounts of coal; however, there we re not yet efficient means by which to produce mechanical energy or to power machinery.” 这句话表明,能源问题就是有燃料但缺乏用燃料来驱动机器的有效方式,这个问题必须得到解决才能使得工业革命成为可能,所以选B。

注意:means 和ways 是近义词,另外阅读里经常还有method, approach, avenue.【选项分析】A. 水与风不能得到有效的利用(这个选项与第一段第3句意义矛盾)B. 缺乏驱动机器的有效方式(正确:对应第一段的倒数第2句)C.蒸汽引擎需要大量的煤,而煤是供应不足的(与倒数第2句矛盾,原文说Great Britain had large amounts of coal)D.人类与动物都不够强壮,无法为工业活动提供能源(是第2句的偷梁换柱,原文说18世纪之前,人们的能量来源有植物、动物与人力)3. 【考点分析】本题为排除信息题,考查蒸汽引擎引发的纱厂变化除了哪一个。

托福TPO26阅读Passage3原文文本+题目+答案解析

托福TPO26阅读Passage3原文文本+题目+答案解析

¡¡¡¡ÎªÁË°ïÖú´ó¼Ò¸ßЧ±¸¿¼Íи££¬Îª´ó¼Ò´øÀ´Íи£TPO26ÔĶÁPassage3Ô-ÎÄÎı¾+ÌâÄ¿+´ð°¸½âÎö£¬Ï£Íû¶Ô´ó¼Ò±¸¿¼ÓÐËù°ïÖú¡£¡¡¡¡¨ Íи£TPO26ÔĶÁPassage3Ô-ÎÄÎı¾£º¡¡¡¡Sumer and the First Cities of the Ancient Near East¡¡¡¡The earliest of the city states of the ancient Near Eastappeared at the southern end of the Mesopotamianplain,the area between the Tigris and Euphratesrivers in what is now Iraq.It was here that thecivilization known as Sumer emerged in its earliestform in the fifth millennium.At first sight,the plaindid not appear to be a likely home for a civilization.There were few natural resources,no timber,stone,or metals.Rainfall was limited,and what water there was rushed across the plain in theannual flood of melted snow.As the plain fell only 20 meters in 500 kilometers,the beds ofthe rivers shifted constantly.It was this that made the organization of irrigation,particularlythe building of canals to channel and preserve the water,essential.Once this was done andthe silt carried down by the rivers was planted,the rewards were rich:four to five times whatrain-fed earth would produce.It was these conditions that allowed an elite to emerge,probably as an organizing class,and to sustain itself through the control of surplus crops.¡¡¡¡PARAGRAPH 2¡¡¡¡It is difficult to isolate the factors that led to the next development¡ªthe emergence of urbansettlements.The earliest,that of Eridu,about 4500 B.C.E.,and Uruk,a thousand years later,center on impressive temple complexes built of mud brick.In some way,the elite hadassociated themselves with the power of the gods.Uruk,for instance,had two patron gods¡ªAnu,the god of the sky and sovereign of all other gods,and inanna,a goddess of love andwar¡ªand there were others,patrons of different cities.Human beings were at their mercy.Thebiblical story of the Flood may originate in Sumer.In the earliest version,the gods destroy thehuman race because its clamor had been so disturbing to them.¡¡¡¡PARAGRAPH 3¡¡¡¡It used to be believed that before 3000 B.C.E.the political and economic life of the cities wascentered on their temples,but it now seems probable that the cities had secular rulers fromearliest times.Within the city lived administrators,craftspeople,and merchants.(Trading wasimportant,as so many raw materials,the semiprecious stones for the decoration of thetemples,timbers for roofs,and all metals,had to be imported.)An increasingly sophisticatedsystem of administration led in about 3300 B.C.E.to the appearance of writing.The earliestscript was based on logograms,with a symbol being used to express a whole word.Thelogograms were incised on damp clay tablets with a stylus with a wedge shape at its end.(TheRomanscalled the shape cuneus and this gives the script its name of cuneiform.)Twothousand logograms have been recorded from these early centuries of writing.A moreeconomical approach was to use a sign to express not a whole word but a single syllable.(Totake an example:the Sumerian word for"head"was"sag."Whenever a word including asyllable in which the sound"sag"was to be written,the sign for"sag"could be used to expressthat syllable with the remaining syllables of the word expressed by other signs.)By 2300B.C.E.the number of signs required had been reduced to 600,and the range of words thatcould be expressed had widened.Texts dealing with economic matters predominated,as theyalways had done;but at this point works of theology,g literature,history,and law alsoappeared.¡¡¡¡PARAGRAPH 4¡¡¡¡Other innovations of the late fourth millennium include the wheel,probably developed first asa more efficient way of making pottery and then transferred to transport.A tablet engravedabout 3000 B.C.E.provides the earliest known example from Sumer,a roofed boxlike sledgemounted on four solid wheels.A major development was the discovery,again about 3000B.C.E.,that if copper,which had been known in Mesopotamia since about 3500 B.C.E.,wasmixed with tin,a much harder metal,bronze,would result.Although copper and stone toolscontinued to be used,bronze was far more successful in creating sharp edges that could beused as anything from saws and scythes to weapons.The period from 3000 to 1000 B.C.E.,when the use of bronze became I widespread,is normally referred to as the Bronze Age.¡¡¡¡PARAGRAPH 1¡¡¡¡The earliest of the city states of the ancient Near East appeared at the southern end of theMesopotamian plain,the area between the Tigris and Euphrates rivers in what is now Iraq.Itwas here that the civilization known as Sumer emerged in its earliest form in the fifthmillennium.At first sight,the plain did not appear to be a likely home for a civilization.Therewere few natural resources,no timber,stone,or metals.Rainfall was limited,and what waterthere was rushed across the plain in the annual flood of melted snow.As the plain fell only 20meters in 500 kilometers,the beds of the rivers shifted constantly.It was this that made theorganization of irrigation,particularly the building of canals to channel and preserve thewater,essential.Once this was done and the silt carried down by the rivers was planted,therewards were rich:four to five times what rain-fed earth would produce.It was theseconditions that allowed an elite to emerge,probably as an organizing class,and to sustainitself through the control of surplus crops.¡¡¡¡PARAGRAPH 1¡¡¡¡The earliest of the city states of the ancient Near East appeared at the southern end of theMesopotamian plain,the area between the Tigris and Euphrates rivers in what。

托福考试真题阅读TPO-26-reading阅读

托福考试真题阅读TPO-26-reading阅读

Energy and the Industrial RevolutionFor years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in millsusing steam power to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift to increased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain’s most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the consequent increase in coal production was made possible as the steam-powered pumps drained water from the ever-deeper coal seams found below the water table.The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industry expanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power. ■However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. ■As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. ■Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. ■Also, the availability of jobs in railway construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.Q1: Why does the author provide the information that “Great Britain had large amounts of coal”?A. To reject the claim that Britain was facing an energy shortage in the eighteenth centuryB. To explain why coal rather than other energy resources became the primary source of heat for homes and industries in eighteenth-century BritainC. To indicate that Britain’s energy shortage was not the result of a lack of fuelQ2: What was “the problem of energy" that had to be solved to make the Industrial Revolution of the eighteenth century possible?A. Water and wind could not be used efficiently.B. There was no efficient way to power machinery.C. Steam engines required large amounts of coal, which was in short supply.D. Neither humans nor animals were strong enough to provide the power required for industrial application.Q3: Which of the following is NOT mentioned in paragraph 2 as a development in cotton mills brought about by Watt’s steam engine?A. The importing of huge quantities of raw cotton by BritainB. Increased mechanizationC. More possibilities for mill locationD. Smaller millsQ4: The phrase “apparent in” in the passage is closest in meaning toA. clearly seen inB. aided byC. associated withD. followed byQ5: According to paragraph 2, what was Britain’s most important export by 1850?A. Raw cottonB. Cotton clothC. Steam-powered pumpsD. CoalQ6: The word “consequent” in the passage is closest in meaning toA. resultingB. encouragingC. well documentedD. immediateQ7: What is the role of paragraph 2 in the passage as a whole?A. It explains how by increasing the supply of raw materials from other countries, British industries were able to reduce costs and increase production.B. It explains how the productionof mechanical energy and its benefits spread quickly across countries that were linked commercially with Great Britain.C. It demonstrates why developments in a single industry could not have caused the Industrial Revolution.D. It illustrates why historians have assigned great importance to the issue of energy in the rise of the Industrial Revolution.Q8: According to paragraph 3, why was the use of coke important for the iron industry?A. It helped make wood into charcoal.B. It reduced the dependency on steam-powered machines used for the production of iron.C. It replaced charcoal in the production of raw and refined iron.D. It powered the machines used to extract coal incoal mines.Q9: According to paragraph 3, all of the following were true of the iron industry inGreat Britain during the 1800s EXCEPT:A. Steam-driven bellows were used to produce raw iron.B. By the 1850s Britain was the world’s largest producer of iron.C. Steam-powered mills made it possible to produce iron of different shapes and sizes.D. Greater demand for higher-quality iron increased its price.Q10: The word “initiated” in the pass age is closest in meaning toA. anticipatedB. acceleratedC. spreadD. startedQ11: Paragraph 4 implies which of the following about the transformation in rail transportation?A. Because railway construction employed mostly rural laborers, unemployment increased among urban workers.B. It resulted in more trade within the country, but less trade with markets that could be reached only by ocean shipping.C. It made shipping freight overland to distant markets less expensive.D. It resulted in higher wages for factory workers.Q12: The phrase “accustomed to" in the passage is closest in meaning toA. in need ofB. used toC. tired ofD. encouraged byQ13: Look at the four squares [■] that indicate where the following sentence could be added to the passage.The first steam-powered locomotives were slow but they rapidly improved in speed and carrying capacity.Where would the sentence best fit? Click on a square to add the sentence to the passage.Q14:Directions:An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.The coming of the Industrial Revolution in eighteenth-century Britain depended on the development of the steam engine to power machinery.A. For years, historians disregarded the issue of energy as a major element in the rise of the Industrial Revolution and focused instead on technological developments and increased production.B. The introduction and growth of steam-powered rail transport was a major factor in Britain's economic expansion during the Industrial Revolution.C. An expansion of the Industrial Revolution outside Great Britain occurred when British industries began to import raw cotton and high-quality iron.D. By 1850, the use of steam power in Britain's mills, mines, and iron industry made Britain a world leader in the production of cotton cloth and iron.E. Since the basic infrastructure was in place, the Industrial Revolution fueled itself with enlargingmarkets requiring ever more expansion of factories and workforce.F. By the end of the 1800s, railway construction attracted so many laborers that factories could not find enough workers to keep up with increasing sales.Survival of Plants and Animals in Desert ConditionsThe harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of plants and animals have adapted to deserts in a number of ways. Most plant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process of photosynthesis; and water regulates the temperature of a plant by its ability to absorb heat and because water vapor lostto the atmosphere through the leaves helps to lower plant temperatures. ■Water controls the volume of plant matter produced. ■The distribution of plants within different areas of desert is also controlled by water. ■Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.■The nature of plant life in deserts is also highly dependent on the fact that they have to adapt to the prevailing aridity. There are two general classes of vegetation: long-lived perennials, which may be succulent (water-storing) and are often dwarfed and woody, and annuals or ephemerals, which have a short life cycle and may form a fairly dense stand immediately after rain.The ephemeral plants evade drought. Given a year of favorable precipitation, such plants will develop vigorously and produce large numbers of flowers and fruit. This replenishes the seed content of the desert soil. The seeds then lie dormant until the next wet year, when the desert blooms again.The perennial vegetation adjusts to the aridity by means of various avoidance mechanisms. Most desert plants are probably best classified as xerophytes. They possess drought-resisting adaptations: loss of water through the leaves is reduced by means of dense hairs covering waxy leaf surfaces, by the closure of pores during the hottest times to reduce water loss, and by the rolling up or shedding of leaves at the beginning of the dry season. Some xerophytes, the succulents (including cacti), store water in their structures. Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground. It is not unusual for the roots of some desert perennials to extend downward more than ten meters. Some plants are woody in type —an adaptation designed to prevent collapse of the plant tissue when water stress produces wilting. Another class of desert plant is the phreatophyte. These have adapted to the environment by the development of long taproots that penetrate downward until they approach the assured water supply provided by groundwater. Among these plants are the date palm, tamarisk, and mesquite. They commonly grow near stream channels, springs, or on the margins of lakes.Animals also have to adapt to desert conditions, and they may do it through two forms of behavioral adaptation: they either escape or retreat. Escape involves such actions as aestivation, a condition of prolonged dormancy, or torpor, during which animals reduce their metabolic rate and body temperature during the hot season or during very dry spells. Seasonal migration is another form of escape, especially for large mammals or birds. The term retreat is applied to the short-term escape behavior of desert animals, and it usually assumes the pattern of a daily rhythm. Birds shelter in nests, rock overhangs, trees, and dense shrubs to avoid the hottest hours of the day, while mammals like the kangaroo rat burrow underground.Some animals have behavioral, physiological, and morphological (structural) adaptations that enable them to withstand extreme conditions. For example, the ostrich has plumage that is so constructed that the feathers are long but not too dense. When conditions are hot, the ostrich erects them on its back, thus increasing the thickness of the barrier between solar radiation and the skin. The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection. Furthermore, the birds orient themselves carefully with regard to the Sun and gently flap their wings to increase convection cooling.The harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of plants and animals have adapted to deserts in a number of ways. Most plant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process ofto the atmosphere through the leaves helps to lower plant temperatures. ■Water controls the volume of plant matter produced. ■The distribution of plants within different areas of desert is also controlled by water. ■Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.■Q1: According to paragraph 1, water provides all of the following essential functions for plants EXCEPTA. improving plants’ ability to absorb sunlightB. preventing plants from becoming overheatedC. transporting nutrientsD. serving as a raw material for photosynthesisQ2: Paragraph 3 suggests that during a dry year ephemeralsA. produce even more seeds than in a wet yearB. do not sprout from their seedsC. bloom much later than in a wet yearD. are more plentiful than perennialsQ3: Howis paragraph 2 related to paragraph 3?A. Paragraph 2 provides a general description of desert plants, and paragraph 3 provides a scientific explanation for these observations.B. Paragraph 2 divides desert plants into two categories, and paragraph 3 provides further information about one of these categories.C. Paragraph 2 proposes one way of dividing desert plants into categories, and paragraph 3 explains one problem with this method of classification.D. Paragraph 2 discusses two categories of desert plants, and paragraph 3 introduces a third category of plants.Q4: In saying that ephemerals will develop “vigorously" when there is favorable precipitation, the author means that their development will beA. suddenB. earlyC. gradualD. strong and healthyQ5: The word “countering” in the passage is closest in meaning toA. eliminatingB. making use ofC. acting againstD. experiencingQ6: According to paragraph 4, some desert plants with root systems that are extraordinarily well developed haveA. relatively little growth abovegroundB. very leafy aboveground structuresC. non woody plant tissue resistant to wiltingD. water stored within their rootsQ7: The word “assured” in the passage is closest in meaning toA. pureC. guaranteedD. deepQ8: What do “the date palm, tamarisk, and mesquite" have in common?A. They are always found together.B. They depend on surface water provided by streams, springs, and lakes.C. They are phreatophytes.D. Their roots are capable of breaking through hard soilsQ9: 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. One way animals escape is by entering a state of extended dormancy, known as aestivation, during the hottest and driest times of year.B. Animals can escape without using direct action, or aestivation, simply by reducing their metabolic rate and body temperature.C. The actions that an animal uses to escape are known as aestivation, which sometimes involves a reduction in metabolic rate or body temperature.D. When the weather is especially hot and dry, an animal may suffer from a condition known as aestivation, at which point the animal needs to escape.Q10: It can be inferred from paragraph 5 that all of the places desert animals retreat toA. provide shade from the sunB. sometimes become crowdedC. are places where supplies of food are plentifulD. leave the animals vulnerable to predatorsQ11: According to paragraph 7, what special adaptation helps the ostrich cope with hot desert conditions?A. Each of its feathers is very short and dense.B. Its wings produce only lateral air movement when flapping.C. Its feathers are very thickly set on both its back and its wings.D. It can make its feathers stand up on its back.Q12: Look at the four squares [■]that indicate where the following sentence could be added to the passage.The increase in reward still did not attract young people to this hard life, and convicted criminals and slaves were pressed into servicesWhere would the sentence best fit?Q13:Directions: Select from the seven phrases below the two phrases that correctly characterize special adaptations found primarily in desert annuals and the three phrases that correctly characterize special adaptations found primarily in desert perennials. Select each phrase you select in the appropriate column of the table. This question is worth 3 points.Adaptations of AnnualsFive of the phrases will NOT be used.Answer ChoicesA. Woody structuresB. Explosive growth in wet yearsD. Storage of water in plant tissueE. Minimization of the amount of water used for photosynthesisF. Short life cycleG. Leaves designed to minimize water lossAdaptations of PerennialsFour of the phrases will NOT be used.Answer ChoicesA. Woody structuresB. Explosive growth in wet yearsC. Long, thin, shallow rootsD. Storage of water in plant tissueE. Minimization of the amount of water used for photosynthesisF. Short life cycleG. Leaves designed to minimize water lossSumer and the First Cities of the Ancient Near EastThe earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq. It was here that the civilization known as Sumer emerged in its earliest form in the fifth millennium. At first sight, the plain did not appear to be a likely home for a civilization. There were few natural resources, no timber, stone, or metals. Rainfall was limited, and what water there was rushed across the plain in the annual flood of melted snow. As the plain fell only 20 meters in 500 kilometers, the beds of the rivers shifted constantly. It was this that made the organization of irrigation, particularly the building of canals to channel and preserve the water, essential. Once this was done and the silt carried down by the rivers was planted, the rewards were rich: four to five times what rain-fed earth would produce. It was these conditions that allowed an elite to emerge, probably as an organizing class, and to sustain itself through the control of surplus crops.It is difficult to isolate the factors that led to the next development—the emergence of urban settlements. The earliest, that of Eridu, about 4500 B.C.E., and Uruk, a thousand years later, center on impressive temple complexes built of mud brick. In some way, the elite had associated themselves with the power of the gods. Uruk, for instance, had two patron gods—Anu, the god of the sky and sovereign of all other gods, and Inanna, a goddess of love and war—and there were others, patrons of different cities. Human beings were at their mercy. The biblical story of the Flood may originate in Sumer. In the earliest version, the gods destroy the human race because its clamor had been so disturbing to them.It used to be believed that before 3000 B.C.E. the political and economic life of the cities was centered on their temples, but it now seems probable that the cities had secular rulers from earliest times. ■Within the city lived administrators, craftspeople, and merchants. (Trading was important, as so many raw materials, the semiprecious stones for the decoration of the temples, timbers for roofs, and all metals, had to be imported.) ■An increasingly sophisticated system of administration led in about 3300 B.C.E. to the appearance of writing. ■The earliest script was based on logograms, with a symbol being used to express a whole word. ■The logograms were incised on damp clay tablets with a stylus with a wedge shape at its end. (The Romans called the shape cuneus and this gives the script its name of cuneiform.) Two thousand logograms have been recorded from these early centuries of writing. A more economical approach was to use a sign to expres s not a whole word but a single syllable. (To take an example: the Sumerian word for " head” was “sag.” Whenever a word including a syllable in which the sound “sag” was to be written, the sign for “sag" could be used to express that syllable with the remaining syllables of the word expressed by other signs.) By 2300 B.C.E. the number of signs required had been reduced to 600, and the range of words that could be expressed had widened. Texts dealing with economic matters predominated, as they always had done; but at this point works of theology, literature, history, and law also appeared.Other innovations of the late fourth millennium include the wheel, probably developed first as a more efficient way of making pottery and then transferred to transport. A tablet engraved about 3000 B.C.E. provides the earliest known example from Sumer, a roofed boxlike sledge mounted on four solid wheels. A major development was the discovery, again about 3000 B.C.E., that if copper, which had been known in Mesopotamia since about 3500 B.C.E., was mixed with tin, a much harder metal, bronze, would result. Although copper and stone tools continued to be used, bronze was far more successful in creating sharp edges that could be used as anything from saws and scythes to weapons. The period from 3000 to 1000 B.C.E., when the use of bronze became widespread, is normally referred to as the Bronze Age.It used to be believed that before 3000 B.C.E. the political and economic life of the cities was centered on their temples, but it now seems probable that the cities had secular rulers from earliest times. ■Within the city lived administrators, craftspeople, and merchants. (Trading was important, as so many raw materials, the semiprecious stones for the decoration of the temples, timbers for roofs, and all metals, had to be imported.) ■An increasingly sophisticated system of administration led in about 3300 B.C.E. to the appearance of writing. ■The earliest script was based on logograms, with a symbol being used to express a whole word. ■The logograms were incised on damp clay tablets with a stylus with a wedge shape at its end. (The Romans called the shape cuneus and this gives the script its name of cuneiform.)Q1: Which of the following is NOT mentioned in paragraph 1 as a disadvantage of the Mesopotamian plain?A. There was not very much rainfall for most of the year.B. Melting snow caused flooding every year.C. The silt deposited by rivers damaged crops.D. Timber, stone and metals were not readily available.Q2: According to paragraph 1, which of the following made it possible for an elite to emerge?A. New crops were developed that were better suited to conditions on the Mesopotamian plain.B. The richest individuals managed to gain control of the most valuable cropland.C. Control over the few available natural resources made some people four to five times richer than everyone else.D. The building of canals to increase agricultural output required organization.Q3: The word “sustain" in the passage is closest in meaning toA. defendB. promoteC. maintainD. transformQ4: According to paragraph 2, Eridu and Uruk are examples of urban settlements thatA. lacked the features usually found in other early urban settlementsB. developed around religious buildingsC. grew much more rapidly than most of the urban settlements found in SumerD. were mysteriously destroyed and abandonedQ5: The word “sovereign" in the passage is closest in meaning toA. counselorB. masterC. defenderD. creatorQ6: According to paragraph 3, which of the following led to the appearance of writing?A. An increasingly sophisticated administrative systemB. Coordination between secular and religious leadersC. The large volume of trade, particularly importsD. A rapidly expanding and changing populationQ7: In paragraph 3, why does the author provide the information that the number of signs in use had dropped from 2,000 to 600 by 2300 B.C.E.?A. To argue that the development of writing involved periods of growth followed by periods of declineB. To demonstrate that earlier written texts used a larger vocabulary than later texts, which were aimed at a broader audienceC. To support the claim that the range of words expressed by logograms varied widely depending on time period and type of textD. To provide evidence for the increased efficiency of using signs to express syllables rather than whole wordsQ8: According to paragraph 3, ancient texts most commonly dealt withA. theologyB. literatureD. lawQ9: According to paragraph 4, the earliest wheels probablyA. were first developed in areas outside MesopotamiaB. were used to make potteryC. appeared on boxlike sledgesD. were used to transport goods between citiesQ10: The word “engraved” in the passage is closest in meaning toA. carvedB. producedC. datedD. discoveredQ11: 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. Also around 3000B.C.E., it was discovered that mixing copper, known from about 3500 B.C.E., with tin would create a much harder metal known as bronze.B. Although copper had been known since 3500 B.C.E in Mesopotamia, the discovery of bronze did not occur until around 3000 B.C.E.C. Another major development around 3000 B.C.E. was the discovery that copper could be mixed with a much harder metal known as tin.D. The development of bronze by mixing copper and tin probably occurred around 3000 B.C.E. but may have happened as early as 3500 B.C.E.Q12: The word “widespread” in the passage is closest in meaning toA. obviousB. significantC. necessaryD. commonQ13: Look at the four squares [■]that indicate where the following sentence could be added to the passage.City life was diverse, and the population was engaged in a variety of occupations.Where would the sentence best fit?Q14:Directions:An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minorideas in the passage. This question is worth 2 points.Irrigation made it possible for the civilization known as Sumer to arise on the Mesopotamian plain in the fifth millennium B.C.E.Answer ChoicesA. The scarcity of natural resources on the plain made it necessary for a powerful elite to emerge and take charge of trade and imports.B. The economy of each city was based on a craft such as pottery or metal working, and the city of Eridu was known for its saws, scythes and weapons.C. Writing appeared in the form of logograms and later developed into a system using signs to represent syllables rather than whole words.。

TPO-26 Reading 2解析

TPO-26 Reading 2解析

正确答案:A解析:在第一段中,B项对应water regulates the temperature of a plant by its ability to absorb heat;C项对应the nutrients that feed plants are transmitted by water; D项对应water is a raw material in the vital process of photosynthesis。

排除法选A。

Q2正确答案:B解析:第三段主要讲述一年生植物通过保存种子的方法来躲避干旱。

根据the seeds then lie dormant until next wet year, when the desert blooms again确定B 正确;原文说的是replenish the seed content而不是produce more seeds,排除A;原文未提及一年生植物在dry year是否开花,排除C;原文没有提及一年生植物和多年生植物多少的比较,排除D。

Q3正确答案:B解析:通过理解段意可知,第二段主要介绍了两种植物,perennials和ephemerals,第三段详细介绍了ephemerals,B正确。

Q4正确答案:D解析:vigorously,强壮地,茁壮地。

在原文中develop vigorously和produce large numbers of flowers and fruit是并列近义,也可据此推断vigorously近义词是strong and healthy。

Q5正确答案:C解析:counter,反驳,驳斥,抵制,抵消;近义词是acting against。

也可根据countering所在句的意思推断:地面上的植物部分少,地底下的根系网络发达,这种结构是为了对抗干旱。

eliminating是干扰选项,因为消除干旱是不可能的。

TPO-26 Reading 1解析

TPO-26 Reading 1解析

正确答案:C解析:定位到第一段最后4句话,倒数第2句作为例证是转折结构,转折前说英国有大量煤炭,转折后说没有有效途径生产成机械能或发动机械,所以能源短缺不是由于缺乏燃料,C正确;倒数第4句是主题句,最后3句是支持主题句的例证。

主题句是英国能源短缺,排除A;倒数第3句说木材是主要工业材料,排除B;文中未提及coal mining,排除D。

Q2正确答案:B解析:定位到倒数第2句,英国有大量煤炭,但没有有效途径生产成机械能或发动机械,B正确,同时排除C;根据第3句中的water and wind helped with tasks…,排除A;只有第3句中提到了energy from plants and human muscle,并没有叙述二者是否足够强大以提供能量,且未提及neither,排除D。

Q3正确答案:D解析:在第二段中,根据Between 1760 and 1850, the amount of raw cotton imported increased 230 times,排除A;根据The shift to increased mechanization in cotton production is apparent,排除B;根据the large mills did not need to be located by rivers,排除C;只有磨坊大小的变化在第二段中未被提及,D正确。

Q4正确答案:A解析:apparent in, 显而易见的;近义词组是clearly seen in。

根据词组所在句下一句the amount of raw cotton imported increased 230 times这个信息,词组所在句中increased mechanization in cotton production is apparent in import of raw cotton的意思是“棉花生产的机械化增长在原棉进口量上就看得出来”。

TPO26阅读文本

TPO26阅读文本

TPO 26Energy and the Industrial RevolutionPARAGRAPH 1For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.PARAGRAPH 2In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a 1 variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift to increased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain's most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the consequent increase in coal production was made possible as the steam-powered pumps drained water from the ever-deeper coal seams found below the water table.PARAGRAPH 3The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industry expanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.PARAGRAPH 4Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in j mining operations to move bigger loads, but horses were still the primary source of power. ■ However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. ■ As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. ■ Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. ■ Also, the availability of jobs in railway Jj construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many movedto other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.PARAGRAPH 11、Why does the author provide the information that "Great Britain had large amounts of coal"?To reject the claim that Britain was facing an energy shortage in the eighteenth century To explain why coal rather than other energy resources became the primary source of heat for homes and industries in eighteenth-century Britain To indicate that Britain's energy shortage was not the result of a lack of fuel To explain why coal mining became an important industry in nineteenth-century2、What was "the problem of energy" that had to be solved to make the Industrial Revolution of the eighteenth century possible? Water and wind could not be used efficiently. There was no efficient way to power machinery. Steam engines required large amounts of coal, which was in short supply. Neither humans nor animals were strong enough to provide the power required for industrial application.PARAGRAPH 2I3、Which of the following is NOT mentioned in paragraph 2 as a development in cotton mills brought about by Watt's steam engine? The importing of huge quantities of raw cotton by Britain Increased mechanization More possibilities for mill location Smaller mills4、The phrase "apparent in" in the passage is closest in meaning to clearly seen in aid inassociated with followed By5、According to paragraph 2, what was Britain's most important export by 1850? Raw cotton Cotton cloth Steam-powered pumps Coal6、The word "consequent" in the passage is closest in meaning to resultingencouragingwell documented immediate7、What is the role of paragraph 2 in the passage as a whole? It explains how by increasing the supply of raw materials from other countries, British industries were able to reduce costs and increase production. It explains how the production of mechanical energy and its benefits spread quickly across countries that were linked commercially with Great Britain. It demonstrates why developments in a single industry could not have caused the Industrial Revolution.It illustrates why historians have assigned igreat importance to the issue of energy in the rise of the Industrial Revolution.PARAGRAPH 38、According to paragraph 3, why was the use of coke important for the iron industry? It helped make wood into charcoal. It reduced the dependency on steam-powered machines used for the production of iron. It replaced charcoal in the production of raw and refined iron. It powered the machines used to extract coal in coal mines.9、According to paragraph 3, all of the following were true of the iron industry in Great Britain during the 1800s EXCEPT: Steam-driven bellows were used to produce raw iron. By the 1850s Britain was the world's largest producer of iron. Steam-powered mills made it possible to produce iron of different shapes and sizes. Greater demand for higher-quality iron increased its price.PARAGRAPH 410、The word "initiated" in the passage is closest in meaning to anticipatedacceleratedspreadstarted11、Paragraph 4 implies which of the following about the transformation in rail transportation?Because railway construction employed mostly rural laborers, unemployment increased among urban workers. It resulted in more trade within the country, but less trade with markets that could be reached only by ocean shipping. It made shipping freight overland to distant markets less expensive. It resulted in higher wages for factory workers.12、The phrase "accustomed to" in the passage is closest in meaning to in need of used to tired of encouraged by13、Look at the four squares [■] that indicate where the following sentence could be added to the passage.The first steam-powered locomotives were slow but they rapidly improved in speed and carrying capacity.14、Direction: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.The coming of the Industrial Revolution in eighteenth-century Britain depended on the development of the steam engine to power machinery.Answer Choices A. For years, historians disregarded the issue of energy as a major element in the rise of the Industrial Revolution and focused instead on technological developments and increased production.B. By 1850, the use of steam power in Britain's mills, mines, and iron industry made Britain a world leader in the production of cotton cloth and iron.C. The introduction and growth of steam-powered rail transport was a major factor in Britain's economic expansion during the Industrial Revolution.D. Once the basic infrastructure was in place, the Industrial Revolution fueled itself with enlarging markets requiring ever more expansion of factories and workforce.E. An expansion of the Industrial Revolution outside Great Britain occurred when British industries began to import raw cotton and high-quality iron.F. By the end of the 1800s, railway construction attracted so many laborers that factories could not find enough workers to keep up with increasing sales.Survival of Plants and Animals in Desert ConditionsPARAGRAPH 1The harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of plants and animals have adapted to deserts in a number of ways. Most plant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process of photosynthesis; and water regulates the temperature of a plant by its ability to absorb heat and because water vapor lost to the atmosphere through the leaves helps to lower plant temperatures. ■ Water controls the volume of plant matter produced. ■ The distribution of plants within different areas of desert is also controlled by water. ■ Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do. ■PARAGRAPH 2The nature of plant life in deserts is also highly dependent on the fact that they have to adapt to the prevailing aridity. There are two general classes of vegetation: long-lived perennials, which may be succulent (water-storing) and are often dwarfed and woody, and annuals or ephemerals, which have a short life cycle and may form a fairly dense stand immediately after rain.PARAGRAPH 3The ephemeral plants evade drought. Given a year of favorable precipitation, such plants will develop vigorously and produce large numbers of flowers and fruit. This replenishes the seed content of the desert soil. The seeds then lie dormant until the next wet year, when the desert blooms again.PARAGRAPH 4The perennial vegetation adjusts to the aridity by means of various avoidance mechanisms. Most desert plants are 11 probably best classified as xerophytes. They possess drought-resisting adaptations: loss of water through the leaves is reduced by means of densehairs covering waxy leaf surfaces, by the closure of pores during the hottest times to reduce water loss, am by the rolling up or shedding of leaves at the beginning of the dry season. Some xerophytes, the succulents (including cacti), store water in their structures. Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground. It is not unusual for the roots of some desert perennials to extend downward more than ten meters. Some plants are woody in type — an adaptation designed to prevent collapse of the plant tissue when water stress produces wilting. Another class of desert plant is the phreatophyte. These have adapted to the environment by the development of long taproots that penetrate downward until they approach the assured water supply provided by groundwater. Among these plants are the date palm, tamarisk, and mesquite. They commonly grow near stream channels, springs, or on the margins of lakes.PARAGRAPH 5Animals also have to adapt to desert conditions, and they may do it through two forms of behavioral adaptation: they either escape or retreat. Escape involves such actions as aestivation, a condition of prolonged dormancy, or torpor, during which animals reduce their metabolic rate and body temperature during the hot season or during very dry spells.PARAGRAPH 6Seasonal migration is another form of escape, especially for large mammals or birds. The term retreat is applied I to the short-term escape behavior of desert animals, and it usually assumes the pattern of a daily rhythm. Birds shelter in nests, rock overhangs, trees, and dense shrubs to avoid the hottest hours of the day, while mammals like the kangaroo rat burrow underground.PARAGRAPH 7Some animals have behavioral, physiological, and morphological (structural) adaptations that enable them to withstand extreme conditions. For example, the ostrich has 1 plumage that is so constructed that the feathers are long but not \ too dense. When conditions are hot, the ostrich erects them on its 1 back, thus increasing the thickness of the barrierbetween solar radiation and the skin. The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection.Furthermore, the birds orient themselves carefully with regard to the Sun an0 gently flap their wings to increase convection cooling.PARAGRAPH 11、According to paragraph 1, water provides all of the following essential functions for plants EXCEPT improving plants' ability to absorb sunlight preventing plants from becoming overheated transporting nutrients serving as a raw material for photosynthesisPARAGRAPH 32、Paragraph 3 suggests that during a dry year ephemerals produce even more seeds than in a wet year do not sprout from their seeds bloom much later than in a wet year are more plentiful than perennialsPARAGRAPH 2&33、How is paragraph 2 related to paragraph 3? Paragraph 2 provides a general description of desc plants, and paragraph 3 provides a scientific explanation for these observations. Paragraph 2 divides desert plants into two categories, and paragraph 3 provides further information about one of these categories. Paragraph 2 proposes one way of dividing desert plants into categories, and paragraph 3 explains one problem with this method of classification. Paragraph 2 discusses two categories of desert plants, and paragraph 3 introduces a third category of plants.4、In saying that ephemerals will develop "vigorously" when there is favorable precipitation, the author means that their development will be suddenearlygradualstronghealthyPARAGRAPH 45、The word "countering" in the passage is closest in meaning to eliminatingmaking use of acting against experiencing6、According to paragraph 4, some desert plants with root systems that are extraordinarily well developed have relatively little growth aboveground very leafy aboveground structures nonwoody plant tissue resistant to wilting water stored within their roots7、The word "assured" in the passage is closest in meaning to purediminishedguaranteeddeep8、What do "the date palm, tamarisk, and mesquite" have in common? They are always found together. They depend on surface water provided by streams, springs, and lakes. They are phreatophytes. Their roots are capable of breaking through hard soilsPARAGRAPH 59、Which of the sentences below best expresses the essential information in the highlighted 1 sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. One way animals escape is by entering a state of extended dormancy, known as aestivation, during the hottest and driest times of year. Animals can escape without using direct action, or aestivation, simply by reducing their metabolic rate and body temperature. The actions that an animal uses to escape are known as aestivation, which sometimes involves a reduction in metabolic rate or body temperature. When the weather is especially hot and dry, an animal may suffer from a condition known as aestivation, at which point the animal needs to escape.10、It can be inferred from paragraph 5 that all of the places desert animals retreat to provide shade from the sun sometimes become crowded are places where supplies of food are plentiful leave the animals vulnerable to predatorsPARAGRAPH 711、According to paragraph 7, what special adaptation helps the ostrich cope with hot desert conditions?Each of its feathers is very short and dense. Its wings produce only lateral air movement when flapping. Its feathers are very thickly set on both its back and its wings. It can make its feathers stand up on its If back.PARAGRAPH 112、Look at the four squares [ ] that indicate where the following sentence could be added to the passage.For this reason, the total amount of plant material in a desert is often 100 times less than the amount of plant material in an equivalent of temperate forest.Where would the sentence best fit?13. Directions: From the seven statements below, select the statements that correctly characterize breathing during wakefulness and those statements that correctly characterize breathing during sleep. Drag each answer choice you select into the appropriate box of the table. Two of the answer choices will NOT be used. This question is worth 3 points.Adaptations of Annuals●●Adaptations of Perennials●●●A.Woody structuresB. Explosive growth in wet yearsC. Long, thin, shallow rootsD. Storage of water in plant tissueE. Minimization of the amount of water used for photosynthesisF. Short life cycleG. Leaves designed to minimize water lossSumer and the First Cities of the Ancient Near EastPARAGRAPH 1The earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq. It was here that the civilization known as Sumer emerged in its earliest form in the fifth millennium. At first sight, the plain did not appear to be a likely home for a civilization. There were few natural resources, no timber, stone, or metals. Rainfall was limited, and what water there was rushed across the plain in the annual flood of melted snow. As the plain fell only 20 meters in 500 kilometers, the beds of the rivers shifted constantly. It was this that made the organization of irrigation, particularly the building of canals to channel and preserve the water, essential. Once this was done and the silt carried down by the rivers was planted, the rewards were rich: four to five times what rain-fed earth would produce. It was these conditions that allowed an elite to emerge, probably as an organizing class, and to sustain itself through the control of surplus crops.The earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq. It was here that the civilization known as Sumer emerged in its earliest form in the fifth millennium. At first sight, the plain did not appear to be a likely home for a civilization. There were few natural resources, no timber, stone, or metals. Rainfall was limited, and what water there was rushed across the plain in the annual flood of melted snow. As the plain fell only 20 meters in 500 kilometers, the beds of the rivers shifted constantly. It was this that made the organization of irrigation, particularly the building of canals to channel and preserve the water, essential. Once this was done and the silt carried down by the rivers was planted, the rewards were rich: four to five times what rain-fed earth would produce. It was these conditions that allowed an elite to emerge, probably as an organizing class, and to sustain itself through the control of surplus crops.PARAGRAPH 2It is difficult to isolate the factors that led to the next development—the emergence of urban settlements. The earliest, that of Eridu, about 4500 B.C.E., and Uruk, a thousandyears later, center on impressive temple complexes built of mud brick. In some way, the elite had associated themselves with the power of the gods. Uruk, for instance, had two patron gods—Anu, the god of the sky and sovereign of all other gods, and inanna, a goddess of love and war—and there were others, patrons of different cities. Human beings were at their mercy. The biblical story of the Flood may originate in Sumer. In the earliest version, the gods destroy the human race because its clamor had been so disturbing to them.PARAGRAPH 3It used to be believed that before 3000 B.C.E. the political and economic life of the cities was centered on their temples, but it now seems probable that the cities had secular rulers from earliest times. ■ Within the city lived administrators, craftspeople, and merchants. (Trading was important, as so many raw materials, the semiprecious stones for the decoration of the temples, timbers for roofs, and all metals, had to be imported.) ■ An increasingly sophisticated system of administration led in about 3300 B.C.E. to the appearance of writing. ■ The earliest script was based on logograms, with a symbol being used to express a whole word. ■ The logograms were incised on damp clay tablets with a stylus with a wedge shape at its end. (The Romans called the shape cuneus and this gives the script its name of cuneiform.) Two thousand logograms have been recorded from these early centuries of writing.A more economical approach was to use a sign to express not a whole word but a single syllable. (To take an example: the Sumerian word for" head" was "sag." Whenever a word including a syllable in which the sound "sag" was to be written, the sign for "sag" could be used to express that syllable with the remaining syllables of the word expressed by other signs.) By 2300 B.C.E. the number of signs required had been reduced to 600, and the range of words that could be expressed had widened. Texts dealing with economic matters predominated, as they always had done; but at this point works of theology, g literature, history, and law also appeared.PARAGRAPH 4Other innovations of the late fourth millennium include the wheel, probably developed first as a more efficient way of making pottery and then transferred to transport. A tablet engraved about 3000 B.C.E. provides the earliest known example from Sumer, a roofed boxlikesledge mounted on four solid wheels. A major development was the discovery, again about 3000 B.C.E., that if copper, which had been known in Mesopotamia since about 3500 B.C.E., was mixed with tin, a much harder metal, bronze, would result. Although copper and stone tools continued to be used, bronze was far more successful in creating sharp edges that could be used as anything from saws and scythes to weapons. The period from 3000 to 1000 B.C.E., when the use of bronze became I widespread, is normally referred to as the Bronze Age.PARAGRAPH 11、Which of the following is NOT mentioned in paragraph 1 as a disadvantage of the Mesopotamian plain? There was not very much rainfall for most of the year. Melting snow caused flooding every year. The silt deposited by rivers damaged crops. Timber, stone and metals were not readily available.2、According to paragraph 1, which of the following made it possible for an elite to emerge?New crops were developed that were better suited to conditions on the Mesopotamian plain. The richest individuals managed to gain control of the most valuable cropland. Control over the few available natural resources made some people four to five times richer than everyone else. The building of canals to increase agricultural output required organization.3、The word "sustain" in the passage is closest in meaning to defendpromotemaintaintransformPARAGRAPH 24、According to paragraph 2, Eridu and Uruk are examples of urban settlements that lacked the features usually found in other early urban settlements f developed around religious buildings grew much more rapidly than most of the urban settlements found in Sumer were mysteriously destroyed and abandoned5、The word "sovereign" in the passage is closest in meaning to counselormasterdefendercreatorPARAGRAPH 36、According to paragraph 3, which of the following led to the appearance of writing? An increasingly sophisticated administrative system Coordination between secular and religious leaders The large volume of trade, particularly imports A rapidly expanding and changing population Paragraph 3 is marked with7、In paragraph 3, why does the author provide the information that the number of signs in use had dropped from 2,000 to 600 by 2300 B.C.E.? To argue that the development of writing involved periods of growth followed by periods of decline To demonstrate that earlier written texts used a larger vocabulary than later texts, which were aimed at a broader audience | To support the claim that the range of words expressed by logograms varied widely depending on time period and type of text To provide evidence for the increased efficiency of using signs to express syllables rather than whole words8、According to paragraph 3, ancient texts most commonly dealt with theologyliteraturelawPARAGRAPH 49、According to paragraph 4, the earliest wheels probably were first developed in areas outside Mesopotamia were used to make pottery appeared on boxlike sledges were used to transport goods between cities10、The word "engraved* in the passage is closest in meaning to carvedproduceddateddiscovered11、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. Also around 3000 B.C.E., it was discovered that mixing copper, known from about 3500 B.C.E., with tin would create a much harder metal known as bronze. Although copper had been known since 3500 B.C.E in Mesopotamia, the discovery of bronze did not occur until around 3000 B.C.E. Another major development around 3000 B.C.E. was the discovery that copper could be mixed with a much harder metal known as tin. The development of bronze by mixing copper and tin probably occurred around 3000 B.C.E. but may have happened as early as 3500 B.C.E.12、The word "widespread" in the passage is closest in meaning to obvioussignificantnecessarycommon13、Look at the four squares [ ■ ]that indicate where the following sentence could be added to the passage.City life was diverse, and the population was engaged in a variety of occupations.14、Direction: 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.Irrigation made it possible for the civilization known as sumer to arise on the Mesopotamian plain in the fifth millennium B.C.E.Answer Choices A. The scarcity of natural resources on the plain made it necessary for a powerful elite to emerge and take charge of trade and imports.B. The economy of each city was based on a craft such as pottery or metal working, and the city of Eridu was known for its saws, scythes and weapons.C. Writing appeared in the form of logograms and later developed into a system using signs to represent syllables rather than whole words.D. Priests were powerful figures in the ancient civilization and controlled the political and economic life of the cities.E. The earliest city states had one or more patron gods and were built around central temple complexes.F. The development of the wheel and the creation of bronze were important innovations in Sumer。

托福TPO26综合写作阅读原文+听力原文+满分范文

托福TPO26综合写作阅读原文+听力原文+满分范文

¡¡¡¡ÎªÁË°ïÖú´ó¼Ò¸ßЧ±¸¿¼Íи££¬Îª´ó¼Ò´øÀ´Íи£TPO26×ÛºÏд×÷ÔĶÁÔ-ÎÄ+ÌýÁ¦Ô-ÎÄ+Âú·Ö·¶ÎÄ£¬Ï£Íû¶Ô´ó¼Ò±¸¿¼ÓÐËù°ïÖú¡£¡¡¡¡Íи£TPO26×ÛºÏд×÷ÔĶÁÔ-ÎÄÎı¾£º¡¡¡¡The zebra mussel, a freshwater shellfish native to Eastern Europe, has long been spreading out from its original habitats and has now reached parts of North America. There are reasons to believe that this invasion cannot be stopped and that it poses a serious threat to freshwater fish populations in all of North America. First, the history of the zebra mussel's spread suggests that the invasion might be unstoppable. It is a prime example of an invasion made possible by human transportation. From the zebra mussel£¬s original habitats in Eastern Europe, ships helped spread it out along new canals built to connect Europe¡¯s waterways. The mussel can attach itself to a ship¡¯ s bottom or can survive in the water¡ªcalled "ballast water"¡ªthat the ship needs to take on to properly balance its cargo. By the early nineteenth century, the mussel had spread to the whole of Europe. It was later carried to the east coast of North America in the ballast water of ships traveling from Europe. The way ships have spread the zebra mussel inthe past strongly suggests that the species will soon colonize all of North America. Moreover, once zebra mussels are carried to a new habitat, theycan dominate it. They are a hardy species that does well under a variety of conditions, and they have a high rate of reproduction. Most important, however, zebra mussels often have no predators in their new habitats, and species without natural predators are likely to dominate their habitats. Finally, zebra mussels are likely to cause a decline in the overall fish population in habitats where they become dominant. The mussels are plankton eaters, which means that they compete for food with many freshwater fish species.¡¡¡¡Íи£TPO26×ÛºÏд×÷ÌýÁ¦Ô-ÎÄÎı¾£º¡¡¡¡ProfessorContrary to what you just read, there are ways to control the zebra mussel's spread. What's more, it is not so clear that the mussel is a serious threat to fish populations.True, the spread of zebra mussels couldn't be controlled in the past, but that's because people didn't have enough knowledge. In fact, there are effective ways to stop ships from carrying the mussels to new locations. Here's an example. The way zebra mussels usually travel across the ocean is that a ship takes on some fresh ¡°ballast water¡± in Europe and the n empties that water into American waterways when it arrives. Full of zebra mussels, but the ship can be required to empty out the freshwater and refill with ocean water while still out in the ocean. Salt water will kill the mussels.Second, it's true that zebra mussels often don't have predators in their new habitats, but that's only in the beginning. What's been happening in Europe is that local aquatic birds sooner or later notice there's a new food source around and change their habits to exploit it. They switch from whatever they were eating before to eating zebra mussels. And birds can eat a lot of mussels. So zebra mussels aren't so likely to dominate their new habitats after all.Finally,even in habitats where zebra mussels become dominant, is the overall fish population likely to decrease. It's true that zebra mussels may have a negative impact on fish that eat plankton. But on other fish, they can have a positive impact. For example, the mussels generate nutrients that are eaten by fish that feed near the bottom of the lake or river. So bottom-feeding fish populations may increase, even if plankton-eating fish population decrease.¡¡¡¡Íи£TPO26×ÛºÏд×÷Âú·Ö·¶ÎÄ1£º¡¡¡¡Contrary to what is argued in the passage, the lecture illustrates how zebra mussels are not likely to become a serious threat to freshwater fish populations in North America. First and foremost, new knowledge of the zebra mussel has shed light on new ways to prevent their invasion, even though people in the past have not been able to stop the spread of zebra mussels effectively. For instance, although a large amount of zebra mussels spread to North America by staying in the ballast water of a ship, people can now get rid of them before the ship gets to the shore ¨C if the ballast water is emptied halfway of the journey and refreshed with sea water, the zebra mussels can be exterminated as soon as they get exposed to salt water. Furthermore, zebra mussels are not likely to dominate a new habitat for a long period of time. The lecture agrees that zebra mussels may have no predators and reproduce rapidly in the beginning, but it would not be long before predators notice this new source of food and therefore prevent its domination. Finally, zebra mussels would not cause the decline of overall fish population. While zebra mussels would most likely cause the decline of plankton eaters, as the passage suggests, they would also provide nutrients for bottom-feeding fish and eventually cause the population of those fish to increase.¡¡¡¡Íи£TPO26×ÛºÏд×÷Âú·Ö·¶ÎÄ2£º¡¡¡¡The reading passage states that the invasion of zebra mussels poses a serious threat to freshwater fish populations in all of North America. Contrary to what is argued in the passage, the lecture contends that there are ways to control zebra mussels and they might not bring great threats to fish population. Firstly, even though the spread of zebra mussels could not be controlled, new knowledge of zebra mussel has shed light on new ways to prevent their invasion. For instance, in the past a large amount of zebra mussels spread to North America by staying in the ballast water of a ship. But now the ship can be required to empty out the freshwater and refill with ocean water while still out in the ocean. If the ballast water is emptied halfway of the journey and refreshed with sea water, the zebra mussels can be exterminated as soon as they get exposed to salt water. Furthermore, zebra mussels are not likely to dominate a new habitat for a long period of time. The lecture agrees that zebra mussels may have no predators and reproduce rapidly in the beginning, but it would not be long before predators, like local aquatic birds in Europe, notice this new source of food and therefore prevent its domination. Finally, zebra mussels would。

托福TPO26阅读Passage2原文文本+题目+答案解析

托福TPO26阅读Passage2原文文本+题目+答案解析

¡¡¡¡ÎªÁË°ïÖú´ó¼Ò¸ßЧ±¸¿¼Íи££¬Îª´ó¼Ò´øÀ´Íи£TPO26ÔĶÁPassage2Ô-ÎÄÎı¾+ÌâÄ¿+´ð°¸½âÎö£¬Ï£Íû¶Ô´ó¼Ò±¸¿¼ÓÐËù°ïÖú¡£¡¡¡¡¨ Íи£TPO26ÔĶÁPassage2Ô-ÎÄÎı¾£º¡¡¡¡Survival of Plants and Animals in Desert Conditions¡¡¡¡PARAGRAPH 1¡¡¡¡The harsh conditions in deserts are intolerable formost plants and animals.Despite these conditions,however,many varieties of plants and animals haveadapted to deserts in a number of ways.Most planttissues die if their water content falls too low:thenutrients that feed plants are transmitted by water;water is a raw material in the vital process of photosynthesis;and water regulates thetemperature of a plant by its ability to absorb heat and because water vapor lost to theatmosphere through the leaves helps to lower plant temperatures.Water controls the volume ofplant matter produced.The distribution of plants within different areas of desert is alsocontrolled by water.Some areas,because of their soil texture,topographical position,ordistance from rivers or groundwater,have virtually no water available to plants,whereasothers do.¡¡¡¡PARAGRAPH 2¡¡¡¡The nature of plant life in deserts is also highly dependent on the fact that they have to adaptto the prevailing aridity.There are two general classes of vegetation:long-lived perennials,which may be succulent(water-storing)and are often dwarfed and woody,and annuals orephemerals,which have a short life cycle and may form a fairly dense stand immediately afterrain.¡¡¡¡PARAGRAPH 3¡¡¡¡The ephemeral plants evade drought.Given a year of favorable precipitation,such plantswill develop vigorously and produce large numbers of flowers and fruit.This replenishes theseed content of the desert soil.The seeds then lie dormant until the next wet year,when thedesert blooms again.¡¡¡¡PARAGRAPH 4¡¡¡¡The perennial vegetation adjusts to the aridity by mear of various avoidance mechanisms.Most desert plants are 11 probably best classified as xerophytes.They possess drought-resisting adaptations:loss of water through the leaves is reduced by means of dense hairscovering waxy leaf surfaces,by the closure of pores during the hottest times to reduce waterloss,am by the rolling up or shedding of leaves at the beginning of the dry season.Somexerophytes,the succulents(including cacti),storewater in their structures.Another way ofcountering drought is to have a limited amount of mass above ground and to have extensiveroot networks below ground.It is not unusual for the roots of some desert perennials toextend downward more than ten meters.Some plants are woody in type¡ªan adaptationdesigned to prevent collapse of the plant tissue when water stress produces wilting.Anotherclass of desert plant is the phreatophyte.These have adapted to the environment by thedevelopment of long taproots that penetrate downward until they approach the assuredwater supply provided by groundwater.Among these plants are the date palm,tamarisk,andmesquite.They commonly grow near stream channels,springs,or on the margins of lakes.¡¡¡¡PARAGRAPH 5¡¡¡¡Animals also have to adapt to desert conditions,and they may do it through two forms ofbehavioral adaptation:they either escape or retreat.Escape involves such actions asaestivation,a condition of prolonged dormancy,or torpor,during which animals reduce theirmetabolic rate and body temperature during the hot season or during very dry spells.¡¡¡¡PARAGRAPH 6¡¡¡¡Seasonal migration is another form of escape,especially for large mammals or birds.Theterm retreat is applied I to the short-term escape behavior of desert animals,and it usuallyassumes the pattern of a daily rhythm.Birds shelter in nests,rock overhangs,trees,anddense shrubs to avoid the hottest hours of the day,while mammals like the kangaroo ratburrow underground.¡¡¡¡PARAGRAPH 7¡¡¡¡Some animals have behavioral,physiological,and morphological(structural)adaptations thatenable them to withstand extreme conditions.For example,the ostrich has 1 plumage thatis so constructed that the feathers are long but not\too dense.When conditions are hot,theostrich erects them on its 1 back,thus increasing the thickness of the barrier between solarradiation and the skin.The sparse distribution of the feathers,however,also allowsconsiderable lateral air movement over the skin surface,thereby permitting further heatloss by convection.Furthermore,the birds orient themselves carefully with regard to the Sunan0 gently flap their wings to increase convection cooling.¡¡¡¡PARAGRAPH 1¡¡¡¡The harsh conditions in deserts are intolerable for most plants and animals.Despite theseconditions,however,many varieties of plants and animals have adapted to deserts in a numberof ways.Most plant tissues die if their water content falls too low:the nutrients that feed plantsare transmitted by water;water is a raw。

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1TPO26:Energy and the Industrial RevolutionFor years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a 1 variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift to increased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain's most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the M consequent increase in coal production was made possible as the steam-powered pumps drained water from the ever-deeper coal seams found below the water table.The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industry expanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in j mining operations to move bigger loads, but horses were still the primary source of power. However, the arrival of the steam engine initiated a complete 2transformation in rail transportation, entrenching and expanding the Industrial Revolution. As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. Greaterproductivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. Also, the availability of jobs in railway Jj construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.PARAGRAPH 1For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as the Industrial Revolution, and many give prominence to the problem of energy. Until the eighteenth century, people relied on energy derived from plants as well as animal and human muscle to provide power Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. However, by the eighteenth century, Great Britain in particular was experiencing an energy shortage. Wood, the primary source of heat for homes and industries and also used in the iron industry as processed charcoal, was diminishing in supply. Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery. This was to occur with progress in the development of the steam engine.1、Why does the author provide the information that "Great Britain had large amounts of coal"?A. To reject the claim that Britain was facing an energy shortage in the eighteenth century fB. To explain why coal rather than other energy resources became the primary source of heat for homes and industries in eighteenth-century BritainC. To indicate that Britain's energy shortage was not the result of a lack of fuelD. To explain why coal mining became an important industry in nineteenth-century2、What was "the problem of energy" that had to be solved to make the Industrial Revolution of the eighteenth century possible?A. Water and wind could not be used efficiently.B. There was no efficient way to power machinery.C. Steam engines required large amounts of coal, which was in short supply.D. Neither humans nor animals were strong enough to provide the power required for industrial application.PARAGRAPH 2In the late 1700s James Watt designed an efficient and commercially viable steam engine that was soon applied to a 1 variety of industrial uses as it became cheaper to use. The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere. A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton. Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water- driven machines. The shift to increased mechanization in cotton production is apparent in the import of raw cotton and the sale of cotton goods. Between 1760 and 1850, the amount of raw cotton imported increased 230 times. Production of British cotton goods increased sixtyfold, and cotton cloth became Great Britain's most important product, accounting for one-half of all exports. The success of the steam engine resulted in increased demands for coal, and the Mconsequent increase in coal production was made possible as the steam-powered pumps drained water from the ever-deeper coal seams found below the water table.3、Which of the following is NOT mentioned in paragraph 2 as a development in cotton mills brought about by Watt's steam engine?A. The importing of huge quantities of raw cotton by BritainB. Increased mechanizationC. More possibilities for mill locationD. Smaller mills4、The phrase "apparent in" in the passage is closest in meaning toA. clearly seen inB. aid inC. associated withD. followed By5、According to paragraph 2, what was Britain's most important export by 1850?A. Raw cottonB. Cotton clothC. Steam-powered pumpsD. Coal6、The word "consequent" in the passage is closest in meaning toA. ResultingB. EncouragingC. well documentedD. immediate7、What is the role of paragraph 2 in the passage as a whole?A. It explains how by increasing the supply of raw materials from other countries, British industries were able to reduce costs and increase production.B. It explains how the production of mechanical energy and its benefits spread quickly across countries that were linked commercially with Great Britain.C. It demonstrates why developments in a single industry could not have caused the Industrial Revolution.D. It illustrates why historians have assigned igreat importance to the issue of energy in the rise of the Industrial Revolution.PARAGRAPH 3The availability of steam power and the demands for new machines facilitated the transformation of the iron industry. Charcoal, made from wood and thus in limited supply, was replaced with coal-derived coke (substance left after coal is heated) as steam-driven bellows came into use for producing of raw iron. Impurities were burnt away with the use of coke, producing a high-quality refined iron. Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes. The resulting boom in the iron industryexpanded the annual iron output by more than 170 times between 1740 and 1840, and by the 1850s Great Britain was producing more tons of iron than the rest of the world combined. The developments in the iron industry were in part a response to the demand for more machines and the ever-widening use of higher-quality iron in other industries.8、According to paragraph 3, why was the use of coke important for the iron industry?A. It helped make wood into charcoal.B. It reduced the dependency on steam-powered machines used for the production of iron.C. It replaced charcoal in the production of raw and refined iron.D. It powered the machines used to extract coal in coal mines.9、According to paragraph 3, all of the following were true of the iron industry in Great Britain during t|| 1800s EXCEPT:A. Steam-driven bellows were used to prHlice raw iron.B. By the 1850s Britain was the world's largest producer of iron.C. Steam-powered mills made it possible to produce iron of different shapes and sizes.D. Greater demand for higher-quality iron increased its price.PARAGRAPH 4Steam power and iron combined to revolutionize transport, which in turn had further implications. Improvements in road construction and sailing had occurred, but shipping heavy freight over land remained expensive, even with the use of rivers and canals wherever possible. Parallel rails had long been used in j mining operations to move bigger loads, but horses were still the primary source of power. ■However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution. ■As transportation improved, distant and larger markets within the nation could be reached, thereby encouraging the development of larger factories to keep pace with increasing sales. ■Greater productivity and rising demands provided entrepreneurs with profits that could be reinvested to take advantage of new technologies to further expand capacity, or to seek alternative investment opportunities. ■Also, the availability of jobs in railway Jj construction attracted many rural laborers accustomed to seasonal and temporary employment. When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.10、The word "initiated" in the passage is closest in meaning toA. AnticipatedB. acceleratedC. spreadD. started11、Paragraph 4 implies which of the following about the transformation in rail transportation?A. Because railway construction employed mostly rural laborers, unemployment increased among urban workers.B. It resulted in more trade within the country, but less trade with markets that could be reached only by ocean shipping.C. It made shipping freight overland to distant markets less expensive.D. It resulted in higher wages for factory workers.12、The phrase "accustomed to" in the passage is closest in meaning toA. in need ofB. used toC. tired ofD. encouraged by13、Look at the four squares [■] that indicate where the following sentence could be added to the passage.The first steam-powered locomotives were slow but they rapidly improved in speed and carrying capacity.14、Direction: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points. The coming of the Industrial Revolution in eighteenth-century Britain depended on the development of the steam engine to power machinery.Answer ChoicesA. For years, historians disregarded the issue of energy as a major element in the rise of the Industrial revolution and focused instead on technological developments and increased production.B. The introduction and growth of steam-powered rail transport was a major factor in Britain's economic expansion during the Industrial Revolution.C. An expansion of the Industrial Revolution outside Great Britain occurred when British industries began to import raw cotton and high-quality iron.D. By 1850, the use of steam power in Britain's mills, mines, and iron industry made Britain a world leader in the production of cotton cloth and iron.E. Since the basic infrastructure was in place, the Industrial Revolution fueled itself with enlarging markets requiring ever more expansion of factories and workforce.F. By the end of the 1800s, railway construction attracted so many laborers that factories could not find enough workers to keep up with increasing sales. 7Survival of Plants and Animals in Desert ConditionsThe harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of plants and animals have adapted to deserts in a number of ways. Most plant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process of photosynthesis; and water regulates the temperature of a plant by its ability to absorb heat and because water vapor lost to the atmospherethrough the leaves helps to lower plant temperatures. Water controls the volume of plant matter produced. The distribution of plants within different areas of desert is also controlled by water. Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.The nature of plant life in deserts is also highly dependent on the fact that they have to adapt to the prevailing aridity. There are two general classes of vegetation: long-lived perennials, which may be succulent (water-storing) and are often dwarfed and woody, and annuals or ephemerals, which have a short life cycle and may form a fairly dense stand immediately after rain.The ephemeral plants evade drought. Given a year of favorable precipitation, such plants will develop vigorously and produce large numbers of flowers and fruit. This replenishes the seed content of the desert soil. The seeds then lie dormant until the next wet year, when the desert blooms again.The perennial vegetation adjusts to the aridity by mear of various avoidance mechanisms. Most desert plants are 11 probably best classified as xerophytes. They possess drought-resisting adaptations: loss of water through the leaves is reduced by means of dense hairs covering waxy leaf surfaces, by the closure of pores during the hottest times to reduce water loss, am by the rolling up or shedding of leaves at the beginning of the dry season. Some xerophytes, the succulents (including cacti), store water in their structures. Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground. It is not unusual for the roots of some desert perennials to extend downward more than ten meters. Some plants are woody in type — an adaptation designed to prevent collapse of the plant tissue when water stress produces wilting. Another class of desert plant is the phreatophyte. These have adapted to the environment by the development of long taproots that penetrate downward until they approach the assured water supply provided by groundwater. Among these plants are the date palm, tamarisk, and mesquite. They commonly grow near stream channels, springs, or on the margins of lakes.Animals also have to adapt to desert conditions, and they may do it through two forms of behavioral adaptation: they either escape or retreat. Escape involves such actions as aestivation, a condition of prolonged dormancy, or torpor, during which animals reduce their metabolic rate and body temperature during the hot season or during very dry spells.Seasonal migration is another form of escape, especially for large mammals or birds. The term 8 retreat is applied I to the short-term escape behavior of desert animals, and it usually assumes the pattern of a daily rhythm. Birds shelter in nests, rock overhangs, trees, and dense shrubs to avoid the hottest hours of the day, while mammals like the kangaroo rat burrow underground.Some animals have behavioral, physiological, and morphological (structural) adaptations that enable them to withstand extreme conditions. For example, the ostrich has 1 plumage that is so constructed that the feathers are long but not \ too dense. When conditions are hot, the ostrich erects them on its 1 back, thus increasing the thickness of the barrier between solar radiation and the skin. The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection.Furthermore, the birds orient themselves carefully with regard to the Sun an0 gently flap their wings to increase convection cooling.PARAGRAPH 1The harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of plants and animals have adapted to deserts in a number of ways. Mostplant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process of photosynthesis; and water regulates the temperature of a plant by its ability to absorb heat and because water vapor lost to the atmosphere through the leaves helps to lower plant temperatures. Water controls the volume of plant matter produced. The distribution of plants within different areas of desert is also controlled by water. Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.1、According to paragraph 1, water provides all of the following essential functions for plants EXCEPTA. improving plants' ability to absorb sunlightB. preventing plants from becoming overheatedC. transporting nutrientsD. serving as a raw material for photosynthesisPARAGRAPH 3The ephemeral plants evade drought. Given a year of favorable precipitation, such plants will develop vigorously and produce large numbers of flowers and fruit. This replenishes the seed content of the desert soil. The seeds then lie dormant until the next wet year, when the desert blooms again. 92、Paragraph 3 suggests that during a dry year ephemeralsA. produce even more seeds than in a wet yearB. do not sprout from their seedsC. bloom much later than in a wet yearD. are more plentiful than perennialsPARAGRAPH 2The nature of plant life in deserts is also highly dependent on the fact that they have to adapt to the prevailing aridity. There are two general classes of vegetation: long-lived perennials, which may be succulent (water-storing) and are often dwarfed and woody, and annuals or ephemerals, which have a short life cycle and may form a fairly dense stand immediately after rain.PARAGRAPH 3The ephemeral plants evade drought. Given a year of favorable precipitation, such plants will develop vigorously and produce large numbers of flowers and fruit. This replenishes the seed content of the desert soil. The seeds then lie dormant until the next wet year, when the desert blooms again.3、How is paragraph 2 related to paragraph 3?A. Paragraph 2 provides a general description of desc plants, and paragraph 3 provides a scientific explanation for these observations.B. Paragraph 2 divides desert plants into two categories, and paragraph 3 provides further information about one of these categories.C. Paragraph 2 proposes one way of dividing desert plants into categories, and paragraph 3 explains one problem with this method of classification.D. Paragraph 2 discusses two categories of desert plants, and paragraph 3 introduces a third category of plants.4、In saying that ephemerals will develop "vigorously" when there is favorable precipitation, the author means that their development will beA. SuddenB. EarlyC. GradualD. strong and healthyPARAGRAPH 4The perennial vegetation adjusts to the aridity by mear of various avoidance mechanisms. Most desert plants are probably best classified as xerophytes. They possess drought-resisting adaptations: loss of water through the leaves is reduced by means of dense hairs covering waxy leaf surfaces, by the closure of pores during the hottest times to reduce water loss, am by the rolling up or shedding of leaves at the beginning of the dry season. Some xerophytes, the succulents (including cacti), store water in their structures. Another way of countering drought is 10to have a limited amount of mass above ground and to have extensive root networks below ground. It is not unusual for the roots of some desert perennials to extend downward more than ten meters. Some plants are woody in type — an adaptation designed to prevent collapse of the plant tissue when water stress produces wilting. Another class of desert plant is the phreatophyte. These have adapted to the environment by the development of long taproots that penetrate downward until they approach the assured water supply provided by groundwater. Among these plants are the date palm, tamarisk, and mesquite. They commonly grow near stream channels, springs, or on the margins of lakes.5、The word "countering" in the passage is closest in meaning toA. eliminatingB. making use ofC. acting againstD. experiencing6、According to paragraph 4, some desert plants with root systems that are extraordinarily well developed haveA. relatively little growth abovegroundB. very leafy aboveground structuresC. nonwoody plant tissue resistant to wiltingD. water stored within their roots7、The word "assured" in the passage is closest in meaning toA. pureB. diminishedC. guaranteedD. deep8、What do "the date palm, tamarisk, and mesquite" have in common?A. They are always found together.B. They depend on surface water provided by streams, springs, and lakes.C. They are phreatophytes.D. Their roots are capable of breaking through hard soilsPARAGRAPH 5Animals also have to adapt to desert conditions, and they may do it through two forms of behavioral adaptation: they either escape or retreat. Escape involves such actions as aestivation, a condition of prolonged dormancy, or torpor, during which animals reduce their metabolic rate and body temperature during the hot season or during very dry spells.9、Which of the sentences below best expresses the essential information in the highlighted 1 sentence in the passage? Incorrect choices change the meaning in important ways or leave out 11 essential information.A. One way animals escape is by entering a state of extended dormancy, known as aestivation, during the hottest and driest times of year.B. Animals can escape without using direct action, or aestivation, simply by reducing their metabolic rate and body temperature.C. The actions that an animal uses to escape are known as aestivation, which sometimes involves a reduction in metabolic rate or body temperature.D. When the weather is especially hot and dry, an animal may suffer from a condition known as aestivation, at which point the animal needs to escape.10、It can be inferred from paragraph 5 that all of the places desert animals retreat toA. provide shade from the sunB. sometimes become crowdedC. are places where supplies of food are plentifulD. leave the animals vulnerable to predatorsPARAGRAPH 7Some animals have behavioral, physiological, and morphological (structural) adaptations that enable them to withstand extreme conditions. For example, the ostrich has 1 plumage that is so constructed that the feathers are long but not \ too dense. When conditions are hot, the ostrich erects them on its 1 back, thus increasing the thickness of the barrier between solar radiation and the skin. The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection.Furthermore, the birds orient themselves carefully with regard to the Sun an0 gently flap their wings to increase convection cooling.11、According to paragraph 7, what special adaptation helps the ostrich cope with hot desert conditions?A. Each of its feathers is very short and dense.B. Its wings produce only lateral air movement when flapping.C. Its feathers are very thickly set on both its back and its wings.D. It can make its feathers stand up on its If back.12、Look at the four squares [ ] that indicate where the following sentence could be added to thepassage.The increase in reward still did not attract young people to this hard life, and convicted criminals and slaves were pressed into servicesWhere would the sentence best fit? 12PARAGRAPH 1The harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of plants and animals have adapted to deserts in a number of ways. Most plant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process of photosynthesis; and water regulates the temperature of a plant by its ability to absorb heat and because water vapor lost to the atmosphere through the leaves helps to lower plant temperatures. ■Water controls the volume of plant matter produced. ■The distribution of plants within different areas of desert is also controlled by water. ■Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do. ■13. Directions: From the seven statements below, select the statements that correctly characterize breathing duringwakefulness and those statements that correctly characterize breathing during sleep. Drag each answer choice you select into the appropriate box of the table. Two of the answer choices will NOT be used. This question is worth 3 points.Adaptations of AnnualsFive of the phrases will NOT be used.A. Woody structuresB. Explosive growth in wet yearsC. Long, thin, shallow rootsD. Storage of water in plant tissueE. Minimization of the amount of water used forAdaptations of PerennialsFour of the phrases will NOT be usedA. Woody structuresB. Explosive growth in wet yearsC. Long, thin, shallow rootsD. Storage of water in plant tissueE. Minimization of the amount of water used for photosynthesisF. Short life cycleG. Leaves designed to minimize water loss 13Sumer and the First Cities of the Ancient Near EastThe earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq. It was here that the civilization known as Sumer emerged in its earliest form in the fifth millennium. At first sight, the plain did not appear to be a likely home for a civilization. There were few natural resources, no timber, stone, or metals. Rainfall was limited, and what water there was rushed across the plain in the annual flood of melted snow. As the plain fell only 20 meters in 500 kilometers, the beds of the rivers shifted constantly. It was this that made the organization of irrigation, particularly the building of canals to channel and preserve the water, essential. Once this was done and the silt。

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