[外语类试卷]大学英语四级模拟试卷568及答案与解析.doc

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1、大学英语四级模拟试卷 568及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed thirty minutes to write a composition on the topic Getting to Know the World Outside the Campus. You should write at least 100 words and you should base your com position on the outline(given in Chinese)below: 1. 大学

2、生了解社会的必要性 2. 了解社会的途径 (大众媒介，社会服务等 ) 3. 我打算怎做 二、 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 attached to the passage. For questions 1-7, mark： Y (for YES) if the statement

3、agrees with the information given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Agricultural News Food and Agriculture in Twenty-five Years According to the International Food Policy

4、Research Institute, there is enough food to feed everyone in the world, if the food were given out evenly. But, it is not. As a result, more than 700 million people in developing countries do not get enough food to eat. IFPRI officials say that in the next 25 years the world population will increase

5、 by about 100 million people each year. They say that unless something is done soon, the situation will become much more serious. There are different opinions about the problem of feeding the growing population. Some experts say an intense use of chemicals and the loss of soil from wind and rain hav

6、e damaged some farmland beyond repair. Other experts believe that recent discoveries in bio-technology will help increase production. They say farm land has not been damaged as much as some people have reported. In an effort to better understand the problem and ways to solve it, IFPRI has developed

7、a three-part international program. Part one began in 1994. It continued through June of 1995. It involved research a bout the world food situation, poverty and the environment. The research results are being published and sent to experts for their comments. The second part involves an international

8、 conference to discuss way to meet the world s food needs by the year 2200 and beyond. Government officials from developed and developing countries, experts on agriculture and environment, and leaders of international organizations will attend. IFPRI officials hope the conference to be held in Washi

9、ngton DC will lead to a program of action that both sides can agree to support. Part three of the program will inform people about results of the conference and plans developed to deal with the situation. That effort began in June of 1995 and continue through 1996. The International Food Policy Rese

10、arch Institute says steps must be taken before a worldwide shortage of food develops and all natural resources are destroyed. New Super Rice Scientists with the International Rice Research Institute in the Philippines have developed what they call a super rice. They say it could increase world produ

11、ction of rice by as much as 25 percent. Last year, farmers are expected to produce about 350 million tons of rice. But more rice than that will be eaten. The extra rice will come from supplies saved during years when production was greater than demand. Today, there are about 4.5 billion people in th

12、e world. But the World Bank says that in 30 years there will be more than eight billion. The huge increase in population will greatly increase the demand for rice. Researchers say the new rice could produce 100 million tons more of rice each year. That amount could feed almost 500 million people. Mo

13、re rice plants grown today have about 25 stems on each plant. Only about 15 of these stems pro duce flowers. The flowers produce the rice. Each flower usually contains about 100 grains of rice. The researchers used computers to design a new plant. They decided that to produce more rice they needed t

14、o reduce the number of stems on each plant. Then more of the plant s energy would go to producing grains of rice. So they mixed existing rice plants until they grew a plant that looked like their design. The new rice contains only eight stems. But each stem contains a flower. And each flower produce

15、d as many as 250 grains of rice. Lester Brown, president of World watch Institute, says the demand for rice in Asia will be two times greater 35 years from now. But as the population increases, less land will be available for growing rice. He says this is why the announcement of the new more product

16、ive rice is so exciting. Researchers plan to begin to test the new rice in different growing conditions. They first will add genes that will give the new plant some natural defense against diseases and insects. Amaranth, a Promising Food Crop Agriculturists believe amaranth is the most promising cer

17、eal crop to come along in recent years. Am aranth is a plant whose name comes from a Greek word meaning “unfading“. Some agriculturists believe the plant can be grown commercially in many environments to help feed a hungry world. It is not a new idea to grow amaranth as a foodstuff. In Mexico during

18、 the sixteenth century, the Aztecs cultivated it. The plant was an important part of their diet. It has been shown .that the Aztecs harvested close to 6 000 metric tons of the grain each year. However, when Cortes and his Spanish army invaded Mexico, they destroyed the crop completely. Today only a

19、few wild and uncultivated kinds of amaranth exist, and it is rarely used as a food in Mexico. It has been discovered that amaranth is a highly nutritious food. The plant s seed is high in protein, and it contains an important amino acid called lysine. Amino acids are organic compounds that are the b

20、uildings blocks of protein. Lysine is an essential amino acid that is missing in wheat, rice, and corn. The leaves of some varieties compare in taste and nutritional value with spinach and other vegetable greens. Amaranth can be ground into flour and made into baked goods. Bread made from amaranth f

21、lour is heavy and very compact when compared with the light and airy bread common in North America. The flour can also be used for cakes, cookies, and crackers, as well as high-protein breakfast cereals and snack foods. It is true that breeding a wild plant into a major food crop such as wheat requi

22、res much research time. Agriculturists know that it has taken hundreds of years of breeding different varieties of corn to get the kinds we have today. Presently there are several problems in growing amaranth as a crop. Because it is a wild plant, it is hard to predict the date when the crop will be

23、 ready to be harvested. It is also impossible to know the expected height of the individual plants or the yield of a given amount of seeds. It is important for economic reasons to breed a plant of uniform height and one that can be harvested at a specific time each year. Plant researchers are now wo

24、rking on developing new hybrids. A hybrid is an offspring resulting from the crossing of different parent plants. The hybrid is more vigorous, or stronger, than either parent. Re searchers want to develop a hybrid that resists to disease and insect pests and at the same time provides a high yield of

25、 grain. The hybrid must also be adaptable to a wide range of environmental conditions. A hybrid that matures in three months or less would make it possible to grow amaranth in cold areas with short growing seasons. Some farm experts feel that selling the amaranth grain commercially may not be easy.

26、Wheat is still the major crop demanded by most countries. Many questions arise about the feasibility of amaranth cultivation. How much will it cost to grow and harvest amaranth? Does the crop require special machinery to harvest it? Will a new grain be acceptable to people who are accustomed to cons

27、uming other grains? It will be some time before we have answers to all these questions. Amaranth may be the kind of high-protein grain that poorer countries need to feed people who go hungry every day. Amaranth is a hardy plant that grows in poor areas which are unable to support other crops. It may

28、 be that in countries that are short of an adequate food supply, amaranth is the foodstuff of the future. 2 Not all people in the world can get enough food because there is not enough food to feed all people. （ A） Y （ B） N （ C） NG 3 IFPRI officials say that in the next 2 years the world population w

29、ill increase by about 100 million people totally. （ A） Y （ B） N （ C） NG 4 The new rice was developed in the Philippines. （ A） Y （ B） N （ C） NG 5 The reason why the new super rice plant can produce more rice is because it has more stems which can produce more flowers. （ A） Y （ B） N （ C） NG 6 In the s

30、ixteenth century, Amaranth was an important part of the diet of the Aztecs. （ A） Y （ B） N （ C） NG 7 Today, amaranth is also widely used as a food in Mexico. （ A） Y （ B） N （ C） NG 8 Amaranth is highly nutritious because it contains an important amino acid. （ A） Y （ B） N （ C） NG 9 Breeding a wild plan

31、t into a major food crop requires _. 10 A good way to solve problems in growing Amaranth might be _. 11 Amaranth is a hardy plant that grows in _. Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questio

32、ns 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） Once a week. （ B） Twice a week. （ C） Thr

33、ee times a week. （ D） Four times a week. （ A） He left his notes at home. （ B） He doesnt know where his notes are. （ C） He doesnt want to lend his notes to the woman. （ D） He agrees to lend her his notes. （ A） He will go in spite of the cold weather. （ B） He won t go since he is not feeling well. （ C

34、） He will go when he feels better. （ D） He won t go as he hasn t finished his work. （ A） Check the timetable. （ B） Go to the railway station earlier. （ C） Travel on a later train. （ D） Cancel the trip earlier. （ A） In New York. （ B） In Boston. （ C） In Newport. （ D） In Washington. （ A） A clerk at the

35、 airport information desk. （ B） A clerk at the railway station information desk. （ C） A policeman. （ D） A taxi -driver. （ A） A guest and a receptionist. （ B） A passenger and an air hostess. （ C） A customer and a shop assistant. （ D） A guest and a waitress. （ A） He s better. （ B） He s feeling worse.

36、（ C） He s sick in bed. （ D） He has recovered. （ A） A hamburger, some chicken McNuggets, and the milkshakes （ B） Spicy Chicken Sandwich （ C） Seafood Soup （ D） Shakes （ A） McDonald s is so successful because of its convenience. （ B） McDonald s is so successful because of its food so delicious. （ C） Mc

37、Donald s is so successful because of its formula and diversity. （ D） McDonald s is so successful because of its high level quality. （ A） Because they have high level quality. （ B） Because theyre able to sell American culture by using all the media they can. （ C） Because they sell different products

38、according to people s tastes and preferences in different areas. （ D） Because they use the similar menu items in the world. （ A） physics （ B） computer science （ C） travel and tourism （ D） chemical （ A） To work for a travel agency. （ B） To find a job in the physics field. （ C） She hasnt decided. （ D）

39、 To work in the IT industry. （ A） She is on her four -year scholarship. （ B） Her parents pay the tuition for her. （ C） She works weekends at a travel agency. （ D） She takes a part - time job. （ A） He goes out to travel. （ B） He works at a travel agency in the weekends. （ C） He also studies at school

40、 in order to get the scholarship. （ D） He plays with his classmates. 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 choos

41、e the best answer from the four choices marked A, B, C and D. （ A） 4,000 years ago. （ B） 3,000 years ago. （ C） 2,000 years ago. （ D） 1,000 years ago. （ A） The small bowl was put above the large bowl. （ B） The large bowl was put above the small bowl. （ C） The small bowl was put inside the large bowl.

42、 （ D） The large bowl consisted of two equal parts. （ A） Horsemen. （ B） Brass doors. （ C） Drops of water. （ D） Metal balls. （ A） They are the most attractive women in Britain. （ B） They are the most popular film stars. （ C） They are the first women news announcers on British television. （ D） They app

43、ear almost every night in TV plays. （ A） At 10 in the evening. （ B） At 9 in the evening. （ C） At 9 in the morning. （ D） At 10 in the morning. （ A） People still talk a lot about it. （ B） Fewer people watched Susans programme from then on. （ C） Anna s photographs appeared frequently in newspapers. （ D

44、） The number of viewers of her programme that day increased by millions. （ A） To learn Spanish. （ B） To tour the city. （ C） To see the ancient art. （ D） To visit friends. （ A） By taxi. （ B） By bus. （ C） By subway. （ D） By foot. （ A） He got lost. （ B） A taxi was faster. （ C） He lost his map. （ D） The

45、 policeman advised him to. （ A） He was greatly disappointed. （ B） He was pleased to get there finally. （ C） He was pleased with his knowledge of Spanish. （ D） He was at a loss about what to do. Section C Directions: In this section, you will hear a passage three times. When the passage is read for t

46、he 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

47、. For these blanks, you can either use the exact words you have just heard or write down the 36 People tend to be more impressed by evidence that seems to confirm some relationship. Thus many are【 B1】 _their dreams are prophetic(预言的 )because a few have come true; They fail to【 B2】 _the many that hav

48、e not. Consider also the belief that “the phone always rings when I m in the shower.“ If it does ring while you are in the shower, the event will stand out and be【 B3】 _. If it doesnt ring, that non-event probably wont even register(留下印象 ). People want to see order,【 B4】 _and meaning in the world. C

49、onsider, for example, the【 B5】 _belief that things like personal misfortunes, plane crashes, and deaths “happen in threes.“ Such beliefs stem from the【 B6】 _of people to allow the third event to【 B7】 _the time period. If three plane crashes occur in a month, then the period of time that counts as their “happening【 B8】 _“is one month; if three crashes occur in a year, the period of time is stretched.【 B9】 _. We also tend to believe what we want to believe. A majority o