1、大学英语六级模拟试卷 5及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a short essay entitled Food Safety Problem. You should write at least 150 words. Following the outline given below in Chinese: 1我国食品市场存在的问题。 2怎样解决食品安全问题。 3结论。 二、 Part II Reading Comprehension (Skim
2、ming 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 information given in the passage; N (for NO) if the statement cont
3、radicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 2 Foods That Fight Disease With remarkable consistency, recent research has found that a diet high in plant-based foodsfruits, vegetables, dried peas and beans, grains, and starchy staple
4、s such as potatoesis 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 your intestinal tract and bones. Heres what is currently known ab
5、out these different disease-fighting foods. Cancer Fighters Preventing cancer is a compelling reason to lead up your cart in the produce department. Scientists have recently estimated that approximately 30 to 40 percent of all cancers could be averted if people ate more fruits, vegetables, and plant
6、 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 past, researchers had linked fat consumption with the development of c
7、ancers, but they currently believe that eating fruits, vegetables, and grains may be more important in preventing the disease than not eating fat. “The evidence a bout a high-fat diet and cancer seemed a lot stronger several years ago than it does now,“ says Melanie Polk, a registered dietitian and
8、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 particular, theyre looking closely at two componentsantioxidants and phyto
9、chemicals. 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 attack and destroy cell membranes. The uncontrolled activity of free rad
10、icals 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 have extolled the virtues of lycopene(the carotenoid that makes tomatoes re
11、d) 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 who never touch tomatoes. Other lycopene-rich foods, such as watermelon,
12、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 vitamins A and C. Can watermelon help reduce the incidence of cancer? No one knows f
13、or sure because there havent 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 compare people who eat watermelon with those who eat processed tomatoes-because c
14、ooking enhances lycopene absorption-to 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 body by stunting the growth of malignant cells. Phytochemicals, naturally occurri
15、ng substances, include indoles(生化 吲哚 ) in cabbage or cauliflower, sapenins(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 and how they work. They are confident, however, that you can get a basketful of ant-c
16、ancer 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 gains, peas and beans, and potatoes. Supplements can help you get some of the benefits of these substances, but they are no replacement for real
17、 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 Jamicson of The Cleveland Clinic Foundation in Ohio. “If you eat a sweet potato with its skin, whic
18、h 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 road to strong bones is paved with calcium-rich food. Leafy green vegetables and low fat da
19、iry 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 your bones strong. Calcium permits cells to divide, regulates muscle contraction and relaxation
20、, 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. Because your body doesnt produce this essential mineral, you must continually replenish the supply.
21、Even though the recommended daily amount is 1,200 mg, most adults dont eat more than 500 mg. One reason may have been the perception that calcium-rich dairy products were also loaded with calories. “In the past, women, in particular, worried that dairy products were high in calories,“ says Letha Y.
22、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 dairy products contain phosphorous(磷 ) and magnesium(镁 ) and are generally fortified with vitamin D, all of whi
23、ch 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 vitamin D and other minerals. But theres a downside. If you rely on pills in lieu of a calcium-rich diet, you wo
24、nt 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 According to this passage, a diet high in plant-based foods plays an important role in fighting all kinds of diseases
25、. （ 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 nutritional value, stop smoking, exercise often and control their weight in order to reduce cancer. （ A） Y （ B） N （ C） NG 4 It
26、 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 food in the near future. （ A） Y （ B） N （ C） NG 6 Investigators dont _ how many phytochemicals exist and how they work. 7 A st
27、udy 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 grapefruit, and guava, are now exciting the interest of researchers because _. 9 If you want to have strong bones you sho
28、uld 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 besides helping _. 11 Calcium-rich food _ its supplements because it also provides other nutrients like vitamin D and oth
29、er 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 about what was said. Both the conversation and the questions will be spoken only once. After each question there will
30、 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 separate the important from the unimportant. （ C） To be well-informed. （ D） Because he always wastes his time. （ A） The
31、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 invited Mary to the party. （ C） He didnt invite Mary to the party. （ D） He didnt want to have a party because of busi
32、ness. （ 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） It s surprising that Mary could repair the record player. （ A） 12:15. （ B） 1:00. （ C） 1:10 （ D） 12:30. （ A） The woman doesnt like orange juice. （ B） The woman didnt
33、 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. （ C） When she finishes writing. （ D） After he visits her. （ A） Unusual. （ B） Freak. （ C） Eccentricity. （ D） Strange. （ A） Be
34、ars. （ 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 unusual menu. （ C） Once he even tried to make soup from elephants trunk. （ D） Above all. （ A） Conservative. （ B） Feminist. （ C） H
35、ousewife. （ 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 demonstrations were always peaceful. （ A） She loves her family. （ B） She hates politics. （ C） Men are interested of that. （ D） She t
36、hinks 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 section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the
37、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） Forest. （ D） Water. （ A） By using satellite images, maps, etc. （ B） By studying specific fanning methods. （ C） By studying
38、 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 pollute the waterways. （ D） By affecting the environments they live in. （ A） To estimate the extreme weather. （ B） To develop
39、 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 maps. （ B） By analyzing the recent weather report. （ C） By capturing the microwave radiation from the soil. （ D） By analyzi
40、ng information provided by ground observation centers. （ A） Acquire information from satellites more efficiently. （ B） To realize full coverage of area the satellite passes over. （ C） Building more ground observation centers. （ D） Compare satellites information with those from ground. （ A） Begging f
41、ood 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 the birds to scare them away. （ B） Making shooting sounds to scare the birds away. （ C） Hiring special workers to drive the
42、m 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） Back to their nests. （ A） France. （ B） Russia. （ C） Poland. （ D） Germany. Section C Directions: In this section, you will hea
43、r 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
44、 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 37 To all Americans, another basic (36)_ in their constitution is the Bill of Rights, adopted in 1971. This consists of 10 very short paragraphs which (
45、37)_ freedom and individual rights and forbid (38)_ with lives of individuals by the government. Each (39)_ is an Amendment to the original Constitution. The Bill of Rights guarantees Americans the right to a speedy (40)_ if accused of a crime. The trial must be by a (41)_ and then the accused perso
46、n must be allowed representation by a lawyer and must be able to call in (42)_ to speak for him or her. Cruel and unusual punishment is (43)_. In the Bill of Rights, (44)_. They have the right to assemble in public places, to protest government actions and to demand change. They have the right to ow
47、n weapons if they wish. Be cause of the Bill of Rights, neither police nor soldiers can stop and search a person without good reason. (45)_. There were 16 other amendments to the Constitution as of 1991. The changes are not many considering that the constitution was written in 1787. Only a few need
48、to be mentioned here. One forbids slavery and three others guarantee citizenship and full rights of citizenship to all people regardless of race. (46)_. Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them t
49、here are four choices marked A, B, C and D. You should decide on the best choice. 48 Acting is such an over-crowded profession that the only advice that should be given to a young person thinking of going on the stage is “Dont!“ But it is useless to try to discourage someone who feels that he must act, though the chances of his becoming famous are slim. The normal way to begin is to go to a drama school. Usually
