[外语类试卷]大学英语六级模拟试卷156及答案与解析.doc

1、大学英语六级模拟试卷 156及答案与解析 一、 Part I Writing (30 minutes) 1 Directions: For this part, you are allowed 30 minutes to write a composition on the topic “A Few Re. marks on Competition“. Your composition should be no less than 150 words and base on the outline (given in Chinese) below. 1. 竞争是存在于当今社会的普遍现象 2.

2、竞争的好处 3. 竞争的同时不要忘记合作 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 1-4, mark： Y (for YES) if the statement agrees with the informa

3、tion 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 Foods That Fight Disease With remarkable consistency, recent research has found that a diet high in plant -based foods fruits,

4、 vegetables, dried peas and beans, grains, and starchy staples such as potatoes is the bodys best weapon in thwarting many health - related problems. These foods work against so many diseases that the same healthy ingredients you might use to protect your heart or ward off cancer will also benefit y

5、our intestinal tract and bones. Heres what is currently known about these different disease -fighting foods. Cancer Fighters Preventing cancer is a compelling reason to load up your cart in the produce department. Scientists have recently estimated that approximately 30 to 40 percent of all cancers

6、could be averted if people ate more fruits, vegetables, and plant - based foods and minimized high -fat, high -calorie edibles that have scant nutritional value. Up to 70 percent of cancers might be eliminated if people also stopped smoking, exercised regularly, and controlled their weight. In the p

7、ast, researchers had linked fat consumption with the development of cancers, but they currently believe that eating fruits, vegetables, and grains may be more important in preventing the disease than not eating fat. “The evidence about a high- fat diet and cancer seemed a lot stronger several years

8、ago than it does now,“ says Melanie Polk, a registered dietitian and director of nutrition education at the American Institute for Cancer Research. Although scientists are still not certain about the specifics, theyre beginning to close in on the healthful constituents of plant- based foods. In part

9、icular, theyre looking closely at two components antioxidants and phytochemicals. Antioxidants. The antioxidants (carotenoids, such as beta carotene and lycopene, and vitamins C and E) found in fruits, vegetables, and other plant -based foods fight free radicals, which are compounds in the body that

10、 attack and destroy cell membranes. The uncontrolled activity of free radicals is believed to cause many cancers. The carotenoids, in particular, which give fruits and vegetables their bright yellow, orange, and red colors, are now gaining recognition for their nutritional worth. Numerous studies ha

11、ve extolled the virtues of lycopene (the carotenoid that makes tomatoes red) in preventing prostate cancer. One such study at Harvard University found that men who include tomato products in their meals twice a week could reduce their risk of developing prostate cancer by one third compared with men

12、 who never touch tomatoes. Other lycopene - rich foods, such as watermelon, red grapefruit, and guava, are now piquing the interest of researchers. Watermelon not only yields more lycopene per serving (15 mg in 11/2 cups) than raw tomatoes (11 mg per 11/2 cups), but its also a rich source of vitamin

13、s A and C. Can watermelon help reduce the incidence of cancer? No one knows for sure because there haven t been sufficient studies. “We assume that well see benefits,“ says Penelope Perkins Veazie, Ph. D., a research scientist with the USDAs Agricultural Research Service. Researchers there plan to c

14、ompare people who eat watermelon with those who eat processed tomatoes because cooking enhances lycopene absorption o see which group absorbs more lycopene. (A 11/2 cup serving of tomato sauce packs 53 mg of lycopene. ) Phytochemicals. The phytochemicals present in fruits and vegetables protect the

15、body by stunting the growth of malignant cells. Phytochemicals, naturally occurring substances, include indoles ( 生化 吲哚 ) in cabbage or cauliflower, saponins ( 生化 皂角苷 ) in peas and beans, and isoflavones (异黄酮 ) in soy milk and tofu. Investigators have only an inkling of how many phytochemicals exist

16、 and how they work. They are confident, however, that you can get a basketful of anti- cancer nutrients by mixing and matching at least five servings a day of fruits and vegetables with seven or more starchy or protein- rich plant foods such as grains, peas and beans, and potatoes. Supplements can h

17、elp you get some of the benefits of these substances, but they are no replacement for real food. “When you take a supplement, youre getting specific vitamins and minerals, but not the thousands of phytochemicals that might be present in fruits and vegetables,“ says registered dietitian Amy Jamieson

18、of The Cleveland Clinic Foundation in Ohio. “If you eat a sweet potato with its skin, which is a great source of both beta carotene and fiber, youll consume at least 5,000 phytochemicals that arent present in a beta carotene supplement. Thats a really important difference.“ Bone - Building Foods The

19、 road to strong bones is paved with calcium - rich food. Leafy green vegetables and low - fat dairy products are excellent sources of calcium, the mineral that puts stiffness into your skeletal system and keeps your bones from turning rubbery and fragile. Your body uses calcium for more than keeping

20、 your bones strong. Calcium permits cells to divide, regulates muscle contraction and relaxation, and plays an important role in the movement of protein and nutrients inside cells. If you dont absorb enough from what you eat to satisfy these requirements, your body will take it from your bones. Beca

21、use your body doesnt produce this essential mineral, you must continually replenish the supply. Even though the recommended daily a- mount is 1,200 mg, most adults don t eat more than 500 mg. One reason may have been the perception that calcium -rich dairy products were also loaded with calories. “I

22、n the past, women, in particular, worried that dairy products were high in calories,“ says Letha Y. Griffin, M. D. , of Peachtree Orthopaedics in Atlanta. “But today you can get calcium without eating any high - fat or high - calorie foods by choosing skim milk or low- fat yogurt.“ Also, low - fat d

23、airy products contain phosphorous (磷 ) and magnesium (镁 ) and are generally fortified with vitamin D, all of which help your body absorb and use calcium. If you find it difficult to include enough calcium in your diet, ask your doctor about supplements. Theyre a potent way to get calcium as well as

24、vitamin D and other minerals. But there s a downside. If you rely on pills in lieu of a calcium - rich diet, you wont benefit from the other nutrients that food provides. Getting the recommended vitamin D may be easy, since your body makes the vitamin when your skin is exposed to the suns rays. 2 Ac

25、cording to this passage, a diet high in plant -based foods plays an important role in fighting all kinds of diseases. （ A） Y （ B） N （ C） NG 3 The author suggested that people should eat more fruits, vegetables, and plant - based foods, eat less high - fat, high - calorie foods with insufficient nutr

26、itional value, stop smoking, exercise often and control their weight in order to reduce cancer. （ A） Y （ B） N （ C） NG 4 It is proved that the uncontrolled activity of free radicals caused many cancers. （ A） Y （ B） N （ C） NG 5 Researchers say that supplements can completely take the place of real foo

27、d in the near future. （ A） Y （ B） N （ C） NG 6 Investigators don t_how many phytochemicals exist and how they work. 7 A study shows that men who eat tomato products twice a week could probably avoid developing prostate cancer by one - third in comparison with those_. 8 Fruits, such as watermelon, red

28、 grapefruit, and guava, are now exciting the interest of researchers because_. 9 If you want to have strong bones you should eat food_. 10 Calcium permits cells to divide, regulates muscle contraction and relaxation, and plays an important role in the movement of protein and nutrients inside cells b

29、esides helping_. 11 Calcium -rich food_its supplements because it also provides other nutrients like vitamin D and other minerals. 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 questions will be asked

30、 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） Because he reads too many books. （ B） To learn how to se

31、perate the important from the unimportant. （ C） To be well-informed. （ D） Because he always wastes his time. （ A） The food spoiled. （ B） The group was shameful. （ C） The weather was bad. （ D） The program director wanted to have it on another day. （ A） He wanted Mary to come, but she couldnt. （ B） He

32、 invited Mary to the party. （ C） He didnt invite Mary to the party. （ D） He didnt want to have a party because of business. （ A） No one knows how Mary gets to work. （ B） She doesnt think the record player works. （ C） She throws the old record away. （ D） Its surprising that Mary could repair the reco

33、rd player. （ A） 12: 15. （ B） 1:00. （ C） 1: 10. （ D） 12:30. （ A） The woman doesnt like orange juice. （ B） The woman didnt come to see Everett. （ C） The man was in a car crash this morning. （ D） The man broke the container of juice. （ A） $ 39. （ B） $ 35. （ C） $ 4. （ D） $ 5. （ A） Next year. （ B） Soon.

34、（ C） When she finishes writing. （ D） After he visits her. （ A） Unusual. （ B） Freak. （ C） Eccentricity. （ D） Strange. （ A） Beam. （ B） Panda. （ C） Mice. （ D） Monkey. （ A） He used to share his house openly with the strangest creatures. （ B） Guests who came to dinner had to be prepared for a most unusua

35、l menu. （ C） Once he even tried to make soup from elephant s trunk. （ D） Above all. （ A） Conservative. （ B） Feminist. （ C） Housewife. （ D） Politician. （ A） The woman approves of the movement. （ B） The movement does have harm to the society. （ C） The woman doesnt care that movement. （ D） The demonstr

36、ations were always peaceful. （ A） She loves her family. （ B） She hates politics. （ C） Men are interested of that. （ D） She thinks that is not her business. （ A） They love each other. （ B） They hate each other. （ C） They are not very good friends. （ D） Not of above all. Section B Directions: In this

37、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. （ A） Soil. （ B） Human population. （ C

38、） Forest. （ D） Water. （ A） By using satellite images, maps, etc. （ B） By studying specific farming methods. （ C） By studying the variation of human population. （ D） By analyzing the quality of crops. （ A） By forcing them farming. （ B） By affecting the quality of soils. （ C） By adding chemicals and p

39、ollute the waterways. （ D） By affecting the environments they live in. （ A） To estimate the extreme weather. （ B） To develop the satellite technology. （ C） To improve agricultural output. （ D） To learn how to change information to maps more efficiently. （ A） By turning the intensity of sunshine into

40、 maps. （ B） By analyzing the recent weather report. （ C） By capturing the microwave radiation from rte soil. （ D） By analyzing information provided by ground observation centers. （ A） Acquire information from satellites more efficiently. （ B） To realize full coverage of area the satellite passes ove

41、r. （ C） Building more ground observation centers. （ D） Compare satellites information with those from ground. （ A） Begging food from the tourists. （ B） Attacking the tourists. （ C） Dropping wastes on the tourists. （ D） Making loud noise to disturb the tourists. （ A） Broadcasting frightened sounds of

42、 the birds to scare them away. （ B） Making shooting sounds to scare the birds away. （ C） Hiring special workers to drive them away. （ D） Capturing them and then transporting them away. （ A） To other European countries. （ B） To the remote areas and suburbs. （ C） To the natural parks for birds. （ D） B

43、ack to their nests. （ A） France. （ B） Russia. （ C） Poland. （ D） Germany. 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 re

44、quired 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 36 To all Americans, another

45、 basic 【 B1】 _in their constitution is the Bill of Rights, adopted in 1971. This consists of 10 very short paragraphs which 【 B2】 _ freedom and individual rights and forbid 【 B3】 _ with lives of individuals by the government. Each 【 B4】 _ is an Amendment to the original Constitution. The Bill of Rig

46、hts guarantees Americans the right to a speedy 【 B5】 _ if accused of a crime. The trial must be by a 【 B6】 _ and then the accused person must be allowed representation by a lawyer and must be able to call in 【 B7】 _ to speak for him or her. Cruel and unusual punishment is 【 B8】 _ . In the Bill of Ri

47、ghts, 【 B9】 _ . They have the right to assemble in public places, to protest government actions and to demand change. They have the right to own weapons if they wish. Because of the Bill of Rights, neither police nor soldiers can stop and search a person without good reason. 【 B10】_ There were 16 ot

48、her amendments to the Constitution as of 1991. The changes are not many considering that the constitution was written in 1787. Only a few need to be mentioned here. One forbids slavery and three others guarantee citizenship and full rights of citizenship to all people regardless of race. 【 B11】_. 37

49、 【 B1】 38 【 B2】 39 【 B3】 40 【 B4】 41 【 B5】 42 【 B6】 43 【 B7】 44 【 B8】 45 【 B9】 46 【 B10】 47 【 B11】 Section B Directions: There are 2 passages in this section. 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. 47 Acting is such an over - crowded profession that the on