[外语类试卷]大学英语四级模拟试卷764及答案与解析.doc

1、大学英语四级模拟试卷 764及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a composition entitled My Most Unforgettable Teacher. You should write at least 120 words following the outline given below in Chinese: 1. 你最难忘的老师 是 ； 2. 他 (她 )让你难忘的原因； 3. 你们师生之间的关系。 二、 Part II R

2、eading Comprehension (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark： Y (for YES) if the statement agrees with the information given in the passage; N (for

3、 NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 2 The Earth Power and Light Compared to the rest of the universe, the Earth is very small. Our planet and eight (or maybe nine) others orbit the Sun, which is on

4、ly one of about 200 billion stars in our galaxy. Our galaxy, the Milky Way, is part of the universe, which includes millions of other galaxies and their stars and planets. By comparison, the Earth is microscopic. Compared to a person, on the other hand, the Earth is enormous. It has a diameter of 7,

5、926 miles (12,756 kilometers) at the equator, and it has a mass of about 61024 kilograms. The Earth orbits the Sun at a speed of about 66,638 miles per hour (29.79 kilometers per second). Dont dwell on those numbers too long, though; to a lot of people, the Earth is inconceivably, mind-bogglingly bi

6、g. And its just a fraction of the size of the Sun. From our perspective on Earth, the Sun looks very small. This is because its about 93 million miles away from us. The Suns diameter at its equator is about 100 times bigger than Earths, and about a million Earths could fit inside the Sun. The Sun is

7、 inconceivably, mind-bogglingly bigger. But without the Sun, the Earth could not exist, in a sense, the Earth is a giant machine, full of moving parts and complex systems. All those systems need power, and that power comes from the Sun. The Sun is an enormous nuclear power source-through complex rea

8、ctions, it transforms hydrogen into helium, releasing light and heat. Because of these reactions, every square meter of our planets surface gets about 342 Watts of energy from the Sun every year. This is about 1.71017 Watts total, or as much as 1.7 billion large power plants could generate. You can

9、learn about how the Sun creates energy in How the Sun Works. When this energy reaches the Earth, it provides power for a variety of reactions, cycles and systems. It drives the circulation of the atmosphere and the oceans. It makes food for plants, which many people and animals eat. Life on Earth co

10、uld not exist without the Sun, and the planet itself would not have developed without it. To a casual observer, the Suns most visible contributions to life are light, heat and weather. Night and Day Some of the Suns biggest impacts on our planet are also its most obvious. As the Earth spins on its a

11、xis, parts of the planet are in the Sun while others are in the shade. In other words, the Sun appears to rise and set. The parts of the world that are in daylight get warmer while the parts that are dark gradually lose the heat they absorbed during the day. You can get a sense of how much the Sun a

12、ffects the Earths temperature by standing outside on a partly cloudy day. When the Sun is behind a cloud, you fuel noticeably cooler than when it isnt. The surface of our planet absorbs this heat from the Sun and emits it the same way that pavement continues to give off heat in the summer after the

13、Sun goes down. Our atmosphere does the same things-it absorbs the heat that the ground emits and sends some of it back to the Earth. The Earths relationship with the Sun also creates seasons. The Earths axis tips a little-about 23.5 degrees. One hemisphere points toward the Sun as the other points a

14、way. The hemisphere that points toward the Sun is warmer and gets more light-its summer there, and in the other hemisphere its winter. This effect is less dramatic near the equator than at the poles, since the equator receives about the same amount of sunlight all year. The poles, on the other hand,

15、 receive no sunlight at all during their winter months, which is part of the reason why theyre frozen. Most people are so used to the differences between night and day (or summer and winter) that they take them for granted. But these changes in light and temperature have an enormous impact on other

16、systems on our planet. One is the circulation of air through our atmosphere. For example: The Sun shines brightly over the equator. The air gets very warm because the equator faces the Sun directly and because the ozone layer is thinner there. As the air warms, it begins to rise, creating a low pres

17、sure system. The higher it rises, the more the air cools. Water condenses as the air cools, creating clouds and rainfall. The air dries out as the rain falls. The result is warm, dry air, relatively high in our atmosphere. Because of the lower air pressure, air rushes toward the equator from the nor

18、th and south. As it warms, it rises, pushing the dry air away to the north and the south. The dry air sinks as it cools, creating high-pressure areas and deserts to the north and south of the equator. This is just one piece of how the Sun circulates air around the world-ocean currents, weather patte

19、rns and other factors also play a part. But in general, air moves from high-pressure to low-pressure areas, much the way that high-pressure air rushes from the mouth of an inflated balloon when you let go. Heat also generally moves from the warmer equator to the cooler poles. Imagine a warm drink si

20、tting on your desk-the air around the drink gets warmer as the drink gets colder. This happens on Earth on an enormous scale. The Coriolis Effect, a product of the Earths rotation, affects this system as well. It causes large weather systems, like hurricanes, to rotate. It helps create westward-runn

21、ing trade winds near the equator and eastward-running jet streams in the northern and southern hemispheres. These wind patterns move moisture and air from one place to another, creating weather patterns. (The Coriolis Effect works on a large scale-it doesnt really affect the water draining from the

22、sink like some people suppose.) The Sun gets much of the credit for creating both wind and rain. When the Sun warms air in a specific location, that air rises, creating an area of low pressure. More air rushes in from surrounding areas to fill the void, creating wind. Without the Sun, there wouldnt

23、be wind. There also might not be breathable air at all. Water and Fire The Sun has a huge effect on our water. It warms the oceans around the tropics, and its absence cools the water around the poles. Because of this, ocean currents move large amounts of warm and cold water, drastically affecting th

24、e weather and climate around the world. The Sun also drives the water cycle, which moves about 18,757 cubic miles (495,000 cubic kilometers) of water vapor through the atmosphere every year. If youve ever gotten out of a swimming pool on a hot day and realized a few minutes later that you were dry a

25、gain, you have firsthand experience with evaporation. If youve seen water form on the side of a cold drink, youve seen condensation in action. These are primary components of the water cycle, also called the hydrologic cycle, which exchanges moisture between bodies of water and land masses. The wate

26、r cycle is responsible for clouds and rain as well as our supply of drinking water. 2 How many Earths could fit inside the Sun? （ A） One million. （ B） 93 million. （ C） Two million. （ D） 100 million. 3 Earth would not have developed without _ . （ A） water （ B） fertilizer （ C） soil （ D） the Sun 4 What

27、 does our atmosphere do? （ A） It absorbs the heat from the ground and sends it to the Sun. （ B） It absorbs the heat from the Sun and emits it back to the Earth. （ C） It absorbs the heat from the Sun and emits it the same way. （ D） It absorbs the heat the ground emits and sends some of it back to the

28、 Earth. 5 _ receives about the same amount of sunlight all year. （ A） The poles （ B） The equator （ C） The north temperate zone （ D） The south temperate zone 6 Air rushes toward the equator from the north and south _ . （ A） because of the dry air （ B） because of the cool air （ C） because of the lower

29、 air pressure （ D） because of the higher air pressure 7 What doesnt the Coriolis Effect cause? （ A） Westward-running trade winds. （ B） Hurricanes. （ C） The water draining from the sink. （ D） Eastward-running jet streams. 8 The Sun has closely relation to create _ . （ A） wind （ B） the air （ C） soil （

30、 D） fire 9 The Sun has a huge effect on _ . 10 If youve seen water form on the side of a cold drink, youve seen _ . 11 The water cycle is responsible for clouds, rain and _ . Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conve

31、rsation, one or more questions will be asked about what was said. Both the conversation and the questions 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. （ A） The tickets

32、have already been sold out. （ B） They will probably not be able to get the ticket. （ C） They have to wait for a long while to get the ticket. （ D） They have to wait fifty minutes before they get the ticket. （ A） The man may have to reschedule his trip. （ B） The man should take his vacation somewhere

33、 else. （ C） She hasnt called the travel agent yet. （ D） She doesnt know when her semester ends. （ A） It would be better to choose more. （ B） Three people have taken the course. （ C） The man should attend tile class at three. （ D） Four courses may be too many. （ A） The man is a forgetful person. （ B）

34、 The typewriter is not new. （ C） The man can have the typewriter later. （ D） The man misunderstood her. （ A） She can help the man. （ B） The servant need some help. （ C） The complaint will be helpful. （ D） The complaint wont really do any good. （ A） Teachers like Professor Johnson are rare. （ B） Prof

35、essor Johnson has won a million dollars. （ C） Professor Johnson is likely to be teaching at that school. （ D） There are many teachers as good as Professor Johnson. （ A） Get some change from Jane. （ B） Use the womans phone. （ C） Go and look for a pay phone. （ D） Pay for the phone call. （ A） Its still

36、 raining and the wind is blowing. （ B） The wind has stopped, but it is still raining. （ C） Both tile wind and the rain have stopped. （ D） The day is still not good. （ A） Your heart rate increases. （ B） You become even more tired. （ C） You solve the fatigue problem. （ D） Youll get hungry. （ A） French

37、 fries. （ B） Bagels. （ C） Sandwiches. （ D） Burgers. （ A） on an average working day （ B） on Sundays （ C） when she is on vacation （ D） when she works on the night shift （ A） Its convenient as snacks. （ B） It explains why the woman likes fast food. （ C） Its convenient as main meals. （ D） The convenienc

38、e outweighs its tastelessness. （ A） It is expensive. （ B） It is reasonably priced. （ C） It is cheap. （ D） It is easily affordable. Section B Directions: 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 questions will

39、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. （ A） He got very surprised at it. （ B） He was more excited than the speaker. （ C） He felt extremely happy over it. （ D） He told all his friends about it. （ A） The speaker wasnt

40、 allowed to have a car when he was growing up. （ B） He was the first person in town to buy a motorcycle. （ C） He was always proud of his sons success in everything. （ D） He was very open with his feelings and his love. （ A） He did not like the way the speaker borrowed bicycles from friends. （ B） He

41、thought that cars were faster than motorcycles. （ C） He liked every new model made by the speakers company. （ D） He once had trouble in riding his motorcycle. （ A） It eliminated many factory jobs. （ B） It allowed workers to live far from their jobs: （ C） It gave workers opportunity for better traini

42、ng. （ D） It allowed workers to spend more time at home. （ A） Increased transportation costs. （ B） The lack of a qualified sales force. （ C） A decline in the number of customers. （ D） Difficulty in transporting merchandise. （ A） Because property is more valuable in the city. （ B） Because prices are h

43、igher in downtown stores. （ C） Because job opportunities are better in the city. （ D） Because highway commuting has become unpleasant. 31 What did the speaker usually do during parties? （ A） Enjoyed the wine and delicious foods. （ B） Listened to the stories of friends. （ C） Sat alone and waited some

44、one to come up. （ D） Talked to the interesting looking people. 32 Why does the speaker suggest encouraging others to talk about themselves? （ A） Its a good way to know each other. （ B） People care nobody except themselves. （ C） People are not interested in public affairs. （ D） People care more about

45、 themselves. 33 What does the speaker want to convey by citing the remarks of Diogenes? （ A） We need to learn the skills of talking. （ B） Listening is easier than talking. （ C） Being a listener is more important than a talker. （ D） We need interesting topics in a part Section C Directions: In this s

46、ection, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks

47、 numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the 33 Since we are social beings, the quality of our lives depends in large measure on our interpersonal(人与人之间的 )relationships. One str

48、ength of the human condition is our【 B1】_to give and receive support from one another under stressful circumstances. Social support【 B2】 _of the exchange of resources among people【 B3】 _on their interpersonal ties. Those of us with strong support systems appear better able to cope with major life ch

49、anges and【 B4】 _problems. People with strong social ties live longer and have better health than those without such ties. Studies over a range of illnesses, from depression to heart disease,【 B5】 _that the presence of social support helps people fight off illness, and the【 B6】 _of such support makes poor health more likely. Social support【 B7】 _stress in a number of ways. First, friends, relatives, and【 B8】_may let