大学英语六级模拟试卷.doc

大学英语六级模拟试卷Model Test SixPaper OnePart I Listening Comprehension (30 minutes)Section ADirections: In this section you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A., B., C, and D., and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the center.1. A. Where has the woman been? B. What does the woman mean by her question? C. Why did the woman ask such a question? D. Why does the woman wonder about him?2. A. Giving a lecture B. WashingC. Meeting her sister D. Cleaning3. A. 6:55 B. 7:05 C. 7:25 D. 7:154. A. To the restaurant B. Home C. To the movie theater D. To his work5. A. The woman should have finished her project by now. B. The woman should work on her project for one more week. C. The woman shouldnt have spent a week on her project. D. The woman has been working at a very fast pace.6. A. Go to the parties B. Go for a ride with the manC. Study for her exam D. Change her clothes7. A. At a restaurant B. At a conference room C. At a drugstore D. At a clinic8. A. 6:00 B. 5: 10 C. 5:00 D. 5:159. A. Smoke B. Offer the woman a cigaretteC. 5: 10 D. Put out his cigarette10. A. The womans boss didnt know she was late for work. B. The womans boss asked why she wasnt there on time. C. The woman is usually punctual. D. The womans boss wants her to keep a habit of being on time.Section BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the question will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A., B., C. and D., and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the center. Passage OneQuestions 11 to 13 are based on the passage you have just heard.11. A. Iron tools. B. Snowshoes C. Political ways D. Guns for hunting12. A. Training animals B. Hunting animals C. Planting crops D. Building houses13. A. The new settlers survived the harsh winters thanks to the Indians help. B. The new settlers introduced to the natives corn and beans. C. The natives tried to make the life of the new settlers resemble the life they once had in England. D. Life in the new world was not like what the Spanish explorers had reported.Passage TwoQuestions 14 to 16 are based on the passage you have just heard.14. A. They were childrens favorite toys. B. They were first made of wood or stone. C. They were meant to bring good luck. D. They were invented in Greece.15. A. Wooden and clay dolls B. Rag dolls C. Stone dolls D. Fashion dolls16. A. Around 1700 B. Around 1800 C. Around 1900 D. Around 1600Passage Three Questions 17 to 20 are based on the passage you have just heard.17. A. As a soldier B. As a dramatist C. As a poet D. As a translator18. A. 1912 B. 1922 C. 1921 D. 191119. A. Almost three years B. Three years C. Four years D. Almost four years20. A. 5 B. 4 C. 2 D. 3Section C (Compound Dictation)略Part II Reading Comprehension (35 minutes)Directions: There are 4 reading passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A., B., C. and D. You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.Questions 21 to 25 are based on the following passage:For all their great diversity of shapes and sizes, glaciers can be divided into two essential types: valley glaciers, which flow downhill from mountains and are shaped by the constraints of topography(地貌), and ice sheets, which flow outward in all directions from domelike centers of accumulated ice to cover vast expanse of terrain. Whatever their type, most glaciers are remnants of great shrouds of ice that covered the earth eons ago. In a few of these glaciers the oldest ice is very ancient indeed; the age of parts of the Antarctic sheet may exceed 500,000 years.Glaciers are born in rocky womb above the snow line, where there is sufficient winter snowfall and summer cold for snow to survive the annual melting. The long gestation period of a glacier begins with the accumulation and gradual transformation of snow flakes. Soon after they reach the ground, complex snowflakes are reduced to compact, roughly spherical ice crystals, and the basic components of a glacier. As new layers of snow and firn, snow that survives the melting of the previous summer, accumulate, they squeeze out most of the air bubbles trapped within and between the crystals below. This process of recrystallization continues throughout the life of the glacier.The length of time required for the creation of glacier ice depends mainly upon the temperature and the rate of snowfall. In Iceland, where snowfall is heavy and summer temperatures are high enough to produce plenty of meltwater, glacier ice may come into being in a relatively short timesay, ten years. In parts of Antarctica, where snowfall is scant and the ice remains well below its melting temperature year round, the process may require hundreds of years.The ice does not become a glacier until it moves under its own weight, and it cannot move significantly until it reaches a critical thicknessthe point at which the weight of the piledup layers overcomes the internal strength of the ice and the friction between the ice and the ground. This critical thickness is about 60 feet. The fastest moving glaciers have been gauged at not much more than two and a half miles per year, and some cover less than 1/100 inch in that same amount of time. But no matter how infinitesimal the flow, movement is what distinguishes a glacier from a mere mass of ice.21. Which of the following is the most appropriate definition of glacier?A. Glaciers fall into two basic categories: valley glaciers and ice sheets.B. Glaciers are huge masses of ice that move under their own weight.C. Glaciers either flow downhill from mountains or flow outward in all directions from domelike centers of accumulated ice.D. Glaciers are primarily formed in the rocky mountain tops above the snow line.22. What is implied in the passage?A. Glaciers can be divided into many categories according to their shapes and sizes.B. Ice sheets move faster than valley glaciers.C. It takes longer for glaciers to form in Antarctica than in Iceland.D. Valley glaciers are not as old as ice sheets.23. Why does the author mention the formation of glaciers in Iceland in the third paragraph?A. Heavy snowfall and high summer temperatures make glaciers come into existence in a relatively short period of time in Iceland.B. Iceland contains some of the oldest ice sheets in existence.C. Iceland has one of the bestpreserved glaciers in the world.D. People expect to find some relatively new glaciers in Iceland.24. What analogy did the author use when describing the formation of glaciers?A. womb B. trap C. crystal D. birth25. Which of the following is the best title for the article?A. Formation of Glaciers B. Sizes and Shapes of GlaciersC. The History of Glaciers D. Why Do Glaciers Move? Questions 26 to 30 are based on the following passage: Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights. It is impossible to know today just what our Stone Age ancestors knew about plants, but from what we can observe of preindustrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. This is logical. Plants are the basis of the food pyramid for all living things, even for other plants. They have always been enormously important to the welfare of people, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and a great many other purposes. Tribes living today in the jungle of the Amazon recognize literally hundreds of plants and know many properties of each. To them botany, as such, has no name and is probably not even recognized as special branch of “knowledge at all. Unfortunately, the more industrialized we become the farther away we move from direct contact with plants, and the less distinct our knowledge of botany grows. Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. When our Neolithic ancestors, living in the Middle East about 10,000 years ago, discovered that certain grasses could be harvested and their seeds planted for richer yields the next season, the first great step in a new association of plants and humans was taken. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops. From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varieties that grew wild. And the accumulated knowledge of tens of thousands of years of experience and intimacy with plants in the wild would begin to fade away.26. According to the first paragraph, early humans .A. did not enjoy the study of botanyB. placed great importance on the ownership of propertiesC. probably had extensive knowledge about plantsD. didnt know how to cultivate crops27. The word “this” in the sentence “This is logical” most probably refers to.A. that our ancestors knew plants are the basis of the food pyramid for all living thingsB. that our ancestors knowledge about plants and their properties was very detailed and organizedC. that extensive knowledge about plants and their properties are essential in the cultivation of crops in preindustrial societiesD. that a detailed learning of plants and their properties was not obtained until the preindustrial societies came into being28. According to the author, when did our knowledge of botany become less distinct?A. As our society become industrialized.B. As our direct contact with plants increases.C. As urbanization took place.D. As we became less interested in the extensive botanical knowledge.29. Why does the author mention tribes living in the jungle of the Amazon in the passage?A. To show that people who have no contact with modern civilization have no idea what the term botany means.B. To show even the most primitive people have extensive knowledge about plants and their properties.C. To show how important the study of botany is to human beings.D. To show that how people unconsciously come into possession of an amazing amount of botanical knowledge.30. The relationship between botany and agriculture is similar to the relationship between the study of animals and .A. sheep raising B. bird watchingC. deer hunting D. horse ridingQuestions 31 to 35 are based on the following passage: The great advance in rocket theory 40 years ago showed that liquidfuel rocket were far superior in every respect to the skyrocket with its weak solid fuel, the only kind of rocket then known. However, during the last decade, large solidfuel rockets with solid fuels about as powerful as liquidfuels have made their appearance, and it is a favorite laypersons question to inquire which one is better. The question is meaningless; one might as well ask whether a gasoline or a diesel engine is better. It all depends on the purpose. A liquidfuel rocket is complicated, but has the advantage that it can be controlled beautifully. The burning of the rocket engine can be stopped completely; it can be reignited when desired. In addition, the thrust can be made to vary by adjusting the speed of the fuel pumps. A solidfuel rocket, on the other hand, is rather simple in construction, though hard to build when a really large size is desired. But once you have a solidfuel rocket, it is ready for action at very short notice. A liquidfuel rocket has to be fueled first and cannot be held in readiness for very long after it has been fueled. However, once a solidfuel rocket has been ignited, it will keep burning. It cannot be stopped and reignited whenever desired (it could conceivably be stopped and reignited after a precalculated time of burning has elapsed) and its thrust cannot be varied. Because a solidfuel rocket can be kept ready for a long time, most military missiles employ solid fuels, but humanpiloted space flight needs the fine adjustments that can only be provided by liquid fuels. It may be added that a liquidfuel rocket is an expensive device; a large solidfuel rocket is, by comparison, cheap. But the solid fuel, pound per pound, costs about 10 times as much as the liquid fuel. So you have, on the one hand, an expensive rocket with a cheap fuel and on the other hand a comparatively cheap rocket with an expensive fuel.31. Which of the following is implied in the passage?A. Rockets using liquid fuel was not available 40 years ago although researches were being done on the practicability of using liquid fuel in rockets.B. It was not until the last decade that rockets using solid fuels made their appearance.C. Complicated rockets using solid fuel have the advantage of flexibility and adjustability that liquidfuel rockets dont possess.D. Liquid fuel costs about 10 times as much as the solid fuel costs.32. Which of the following was NOT mentioned as one of the advantages of liquidfuel rockets?A. They are easy to control. B. Their thrust is variable.C. They are easy to construct. D. Their speed is adjustable.33. Solidfuel rockets are expensive to operate because of their .A. burning time B. size C. fuel D. engines34. The chief consideration for using liquid fuels in humanpiloted space flights is that the rocket .A. is inexpensive to construct B. is capable of carrying heavy cargoC. is easy to control D. is inexpensive to operate35. Which of the following statements is true about solidfuel rockets?A. They are simple to construct.B. They can be reignited when desired.C. They can provide fine adjustments in operation.D. They cost a lot less than liquidfuel rockets to construct.Questions 36 to 40 are based on the following passage: For some time past it has been widely accepted that babiesand other creatureslearn to do things because certain acts lead to rewards; and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early stages, had to be directly related to such basic physiological drives as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, not otherwise.It is now clear that this is not so. Babies will learn to behave in ways that produce results in the world with no reward except the successful outcome.Papousek began his studies by using milk in the normal way to reward the babies and so teach them to carry out some simple movements, such as turning the head to one side or the other. Then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned response in situations where no milk was provided. He quickly found that children as young as four months would learn to turn their heads to right or left if the movement switched on a display of lights and indeed that they were capable of learning quite complex turns to bring about this result, for instance, two left or two right, or even to make as many as three turns to one side.Papouseks light display was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the lights closely although they would smile and bubble when the display came on. Papousek concluded that it was not primarily the sight of the lights which pleased them, it was the success they were achieving in solving the problem, in mastering the skill, and that there exists a fundamental human urge to make sense of the world and bring it under intentional control.36. In this article, the author suggests that babies learn to do things when A. such acts lead to desired rewardsB. they enjoy a sense of achievementC. their curiosity is satisfiedD. they can derive fun from such acts37. In his experiment, Papousek noticed that a babyA. would go on making the learned response with no milk providedB. would have to have enough to drink before the experiment beganC. would not make the learned response until milk is providedD. would make the learned response with pleasure only when it saw the light display38. According to the passage, the babies would smile and bubble when the light display was turned on primarily becauseA. the babies were impressed by the beautiful sightB. the lights are related to ba