大学英语四级考试全真预测试卷.doc

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大学英语四级考试全真预测试卷
Model Test Two
Part I Writing (30 minutes)
Directions:For this part, you are allowed 30 minutes to write a composition on the topic Should Smoking Be Completely Banned. You should write at least 120 words following the outline given below in Chinese:
1. 有人赞同完全禁止吸烟，理由是……
2. 有人不赞同完全禁止吸烟，理由是……
3. 我的看法。
Should Smoking Be Completely Banned

Part II Reading 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 on Answer Sheet 1.For questions 1-7,choose the best answer from the four choices marked ［A］,［B］,［C］and ［D］. For questions 8-10,complete the sentences with the information given in the passage.
Space
Our Future in Space: It Has Already Begun!
We are all space travelers. But we’ve stayed close to home until now. One day, we may leave our “mothership” Earth to make our home among the stars.
A giant, spherical “spaceship”, about 8,000 miles in diameter, is speeding through the solar system right now. It is cruising at an incredible 66,600 miles per hour.
It’s not a giant, Star Wars mothership. It’s spaceship Earth, the home of over four billion people. This watercoated spaceship has been traveling through the universe for about five billion years. Only within the past 25 years, however, have some of its passengers broken free of Earth’s gravity.
But 25 years from now, many people, including you, might live in an orbiting space station 200 miles above the Earth.
Space Cities
Scientists have already designed special space factories. These factories will take advantage of the absence of gravity (zero gravity) to produce everything from life-saving drugs to perfect ball bearings.
Other scientists have designed space colonies, complete with farms, schools, and artificial day and night. Hundreds, or even thousands, of people will live, work, play—even go to school, far above the Earth.
Our conquest of space, of course, has already begun. We have explored part of the Moon, sent robot spaceships onto the surface of Venus and Mars, and aimed space probes past the planets of Jupiter and Saturn.
Last June, one robot ship, Pioneer 10, left our solar system forever. And astronauts from both the Soviet Union and the United States have lived in space stations.
The conquest of space, without question, is one of the greatest adventures human beings have ever set out on. But it may be more than a great adventure. Some scientists think the conquest of space may be a necessity for survival of the human species.
We are tearing up more and more of the Earth to get raw materials for industry. And we are polluting the air and water as we manufacture products that we need or want. Almost everything that seems to make our lives more comfortable, and from electricity to pesticides, uses up or alters a piece of our planet’s natural environment.
Why Go into Space?
Yet our solar system is full of resources. The moon is chockfull of valuable metals. So are the asteroids, the small, rocky, planet-like bodies orbiting the sun most of them between Mars and Jupiter. These metals, if we can get them, could be used to build factories and space stations. Also, in space, there is no atmosphere to filter out the sun’s energy. There is plenty of solar energy to be turned into electricity for manufacturing, for creating comfortable living conditions.
Getting away from Earth has other advantages, too. Modern industry uses many kinds of metal alloys (mixtures of metal that are better for certain purposes than pure metals). Yet some metal alloys either can’t be made or are very expensive to make on Earth because of gravity. For instance, certain metals don’t mix well on Earth. But in zero gravity, molten (hot, liquid) metals mix more evenly. This is because there is no gravity to pull the heavier metals down, while the lighter ones float on top.
From space, too, we can look down on the Earth and study the atmosphere, its weather, and the effects of air pollution.
And because there is no strong gravity to break free from, our future homes away from Earth will be convenient starting points for travel to distant planets.
But, while going into space might solve some problems, outer space can also be a dangerous place. For example, in outer space, we have to protect ourselves from the dangers of ultraviolet light and cosmic rays. Ultraviolet light from the sun can give us bad sunburns right here on Earth. Yet, Earth’s atmosphere screens out most of that harmful radiation. Cosmic rays are tiny highenergy particles from outer space. Again, the Earth shields us from most of them.
At Home in Space?
But in space, without special protection, we would be exposed to much stronger radiation from ultraviolet light and cosmic rays. Also, in the zero gravity of outer space, our bones will lose calcium and become weaker. This will be more of a problem the longer people stay out in space. Doctors are looking for a way to keep our bones from losing calcium in outer space. And a small spaceship just might “drive you batty” after a while. But even on a short trip in outer space, you might not feel as well as you’d like to. Space travel could make you seasick!
Yet, these risks won’t keep people from going into space. Eventually, an Earth-like environment will be built in space. And they will be populated by people with many different interests: medicine, construction, farming, teaching, mining, and so on.
The next hundred years will be filled with other worldly adventures, exciting scientific discoveries, and danger, as humans leave Earth—perhaps forever.
Aging in Space
Suppose a space traveler is moving at a velocity of 186,200 miles per second. For every hour that passes for him, 30 hours pass on Earth. If he travels for a year in this fashion (having accelerated instantaneously) and then turns around and comes back at this speed (having turned around instantaneously), he will find that while he has seemed to himself to have traveled two years, the men on Earth would claim he had been absent for 30 years.
Suppose the space traveler had left at the age of 30, leaving behind a twin brother also aged 30. When he returned he would be 32, but his stay-at-home twin brother would be 60. That is why the “clock paradox”, is sometimes called the “twin paradox”.
Of course it takes quite a long while to accelerate to a high speed, and a long while to make a turn and head back again, so conditions aren’t quite as clearcut as just described.

1.The giant, spherical spaceship mentioned in the passage is.
［A］the outer space［B］a man-made spaceship
［C］the planet Earth［D］the Star Wars mother-ship
2.Some persons have traveled into outer space after conqueringwithin the past 25 years.
［A］the universe［B］Earth’s gravity
［C］the earth ［D］outer space
3.We have explored or sent robot spaceships to the following space except.
［A］the moon［B］Venus［C］Jupiter［D］Mars
4.Why is the conquest of space more than a great adventure?
［A］Because it is full of challenges for human beings.
［B］Because it may be necessary for human beings to survive.
［C］Because it is the greatest adventure in human history.
［D］Because it is more exciting than any other adventures.
5.The moon and the asteroids are alike with respect to their .
［A］size and moving ways ［B］comfortable living conditions
［C］rich and valuable metals［D］solar energy
6.Why can’t ultraviolet light scorch our skin on Earth as seriously as it does in space places?
［A］Because the Earth’s atmosphere can make ultraviolet light less harmful.
［B］Because ultraviolet can’t reach the Earth at all.
［C］Because the Earth is far away from those planets radiating ultraviolet light.
［D］Because other space places is near from those planets radiating ultraviolet light.
7.In spite of many risks, scientists will finally buildin space suitable for humans to live.
［A］an environment without ultraviolet light
［B］a lot of homes
［C］an Earth-like environment
［D］an environment with atmosphere
8.The reason some metal alloys can’t be made on Earth is that the heavier metals ___________together with the lighter ones.
9.In space, there is no atmosphere to filter out the sun’s energy. There is plenty of solar energy to be turned into_____________ , for creating comfortable living conditions.
10.According to the author,__________________ will be caused to a man in gravity-free space.
Part III Listening Comprehension (35 minutes)
SectionA
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, 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. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
11.［A］Tennis equipment.
［B］Volleyball equipment.
［C］Football equipment.
［D］Basketball equipment.
12.［A］He must meet his teacher.
［B］He must attend a class.
［C］He must go out with his girlfriend.
［D］He must stay at school to finish his homework.
13.［A］It’s not as good as it was.［B］It’s better than it used to be.
［C］It’s better than people say.［D］It’s even worse than people say.
14.［A］Because he doesn’t like football.
［B］Because Maria fell ill.
［C］Because he didn’t have the time.
［D］Because Maria can’t stand football.
15.［A］A temporary job.
［B］A permanent job.
［C］Some money for the vacation.
［D］Some money for the university fees.
16.［A］The woman did most of the talking.
［B］The man did most of the talking.
［C］The woman was wearing a black sweater.
［D］The man and the woman had dark hair.
17.［A］A sunny day. ［B］A raincoat.
［C］An attractive hut. ［D］A lovely hat.
18.［A］Librarian and student. ［B］Operator and caller.
［C］Boss and secretary.［D］Customer and repairman.
Questions 19 to 22 are based on the conversation you have just heard.
19.［A］The benefits of strong business competition.
［B］A proposal to lower the cost of production.
［C］Complaints about the expense of modernization.
［D］Suggestions concerning new business strategies.
20.［A］It costs much more than its worth.
［B］It should be brought up-to-date.
［C］It calls for immediate repairs.
［D］It can still be used for a long time.
21.［A］The personnel manager should be fired for inefficiency.
［B］A few engineers should be employed to modernize the factory.
［C］The entire staff should be retrained.
［D］Bettereducated employees should be promoted.
22.［A］Their competitors have long been advertising on TV.
［B］TV commercials are less expensive.
［C］Advertising in newspapers alone is not sufficient.
［D］TV commercials attract more investments.
Questions 23 to 25 are based on the conversation you have just heard.
23.［A］Searching for reference material.
［B］Watching a film of the 1930s’.
［C］Writing a course book.
［D］Looking for a job in a movie studio.
24.［A］It’s too broad to cope with. ［B］It’s a bit outdated.
［C］It’s controversial.［D］It’s of little practical value.
25.［A］At the end of the online catalogue.
［B］At the Reference Desk.
［C］In the New York Times.
［D］In the Reader’s Guide to Periodical Literature.
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 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］.Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
Questions 26 to 28 are based on the passage you have just heard.
26.［A］The liberation movement of British women.
［B］Rapid economic development in Britain.
［C］Changing attitudes to family life.
［D］Reasons for changes in family life in Britain.
27.［A］Because millions of men died in the war.
［B］Because women had proved their worth.
［C］Because women were more skillful than men.
［D］Because factories preferred to employ women.
28.［A］The concept of “the family” as a social unit.
［B］The attitudes to birth control.
［C］The attitudes to religion.
［D］The ideas of authority and tradition.
Passage Two
Questions 29 to 31 are based on the passage you have just heard.
29.［A］Synthetic fuel. ［B］Solar energy.
［C］Alcohol.［D］Electricity.
30.［A］Air traffic conditions. ［B］Traffic jams on highways.
［C］Road conditions.［D］New traffic rules.
31.［A］Go through a health check. ［B］Take little luggage with them.
［C］Arrive early for boarding. ［D］Undergo security checks.
Passage Three
Questions 32 to 35 are based on the passage you have just heard.
32.［A］Washing plates. ［B］Clearing tables.
［C］Shining shoes. ［D］Sweeping the floor.
33.［A］He must work six days a week.
［B］He should never be late for work.
［C］He must study hard in his spare time.
［D］He should not bring his friends to the restaurant.
34.［A］To pay him for his work.
［B］To let him have 3 meals a day in the restaurant.
［C］To give his friends free drinks.
［D］To allow him to have more free time.
35.［A］Because the boy was not a fulltime worker.
［B］Because the boy had made some mistakes.
［C］Because he thought the boy had failed to meet his requirements.
［D］Because he thought it was his son who should pay him.
Section C
Directions: In this section, 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 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 main points in you own words. Finally, when the passage is read for the third time, you should check what you have written.
Americans are proud of the (36)_________achievements made in this country. Medical scientists have found cures and (37)___________for such diseases as polio and tuberculosis. They have learned a great deal about (38)____________and heart disease. Many lives have been saved. American hospitals are the most modern and best (39)___________medical facilities in the world. But this degree of excellence has been expensive.
Medical costs in the United States are very high. There is a (40)___________health plan for Americans. But there are many programs (41)_________for this purpose. Many people have health plans at the companies where they work. Under these plans, the company pays a fixed (42)___________of money regularly into a fund. Then when the (43)_________________needs medical help, he can use money from the f