1、大学英语四级模拟试卷 524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 on the topic: A Letter on Food Safety to a Publishing House. You should write at least 1-20 words according to the outline given below in Chinese: 假设你的同学因食用从某超市买回的食品而食物中毒，后经治疗康复请给报社
2、写一封信，描述他 (们 )的中毒与脱险经过，呼吁社会各界重视食品安全。 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 agrees w
3、ith 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 Cholesterol and Heart Disease Do you know your cholesterol level? Many people dont. A high level of cholesterol
4、 in the blood is an important risk factor for heart disease. Some people say that the danger of heart disease is exaggerated. However, heart disease is a main cause of death in developed countries. Every year more than one million Americans have heart attacks, and half of them die. People With heart
5、 disease suffer chest pains that make simple activities, such as walking, shaving, or taking a shower, difficult. Research has proven that cholesterol levels are Connected with heart disease. One project in Massachusetts has studied the same group of men and women since 1948. The researchers have fo
6、und that the people who have high levels of cholesterol have more heart attacks. A natural substance in the blood, cholesterol comes from the liver. The amount of cholesterol is affected by diet and by physical qualities we inherit from our parents. One kind of cholesterol sticks fat to the walls of
7、 arteries, making them smaller and finally blocking them. It produces a condition called “hardening of the arteries,“ which causes heart attacks. With tiny cameras, doctors can see blood circulating through the heart valves. Angiograms (血管造影照片 ) are x-rays of the heart arteries. They show fat deposi
8、ts and blockages caused by high cholesterol. Heart disease begins in children as young as 3 years old. It occurs earlier in boys than in girls. Nearly half of teenagers have some fat deposits on their artery walls. Heart disease develops faster if we have high cholesterol levels and also smoke. What
9、 is a safe level of cholesterol? Adults have a high risk of heart attack if their cholesterol level is above 240 milligrams per deciliter (1/10 公升 ) of blood. Below 200 is better. In the Massachusetts study, no one with a cholesterol level below 150 has ever had a heart attack. However, about half o
10、f American adults have cholesterol levels above 200. To lower our cholesterol level, we must change our eating habits. Anything that comes from an animal is high in fat and high in cholesterol. The American Heart Association National Cholesterol Education Program says that fat should be no more than
11、 30 percent of our diet. Blood cholesterol levels start to fall after 2 to 3 weeks of following a low-cholesterol, low-fat diet. Dietary changes alone can result in a 10 percent reduction of the average persons cholesterol level. Aerobic exercise helps, too. Artery blockage can be reduced by as much
12、 as 40 percent through changes in diet and amount of exercise. We must educate everyone, including children in elementary schools. We must teach them responsibility for their health through classes in nutrition and aerobic exercise. For example, the smart snack is fruit. Children must be served frui
13、t in the school cafeteria, along with low-fat meals. Schools must send recipes home with the children. Parents must include children in planning and preparing meals and shopping for food. Adults, including persons over the age of sixty five, can lower their cholesterol by 30 or 40 percent. It is nev
14、er too late to change. One man began his health program when he was seventy- three. By the time he was seventy-seven, he had lowered his arterial blockage from 50 percent to 13 percent and his cholesterol from 320 to 145 without drugs. He went on a vegetarian diet with only 10 percent fat, plus prog
15、rams to reduce stress and get more exercise. A low-cholesterol diet that cuts out most animal products and high-fat vegetables may be un- familiar to people. The Heart Association says to use no added fat of any kind. Dont fry food in oil. Cook it in water, vinegar, or vegetable water. Learn about g
16、rains and vegetables. Avoid egg yolks (the yellow part of the egg). Eat potatoes, beans, low fat vegetables, and fruit. People of- ten complain about low-fat diets before they have had time to get used to them. Food can taste good without cream, butter, and salt. You can use olive oil, mustard, fres
17、h herbs, or yogurt instead. A new diet can cause general anxiety, when people feel worried and nervous about what is going to happen. They must learn to deal with the changes in their lives. Sometimes major changes in diet or lifestyle are easier than minor ones because the results are bigger and fa
18、ster. Fast results encourage us. How can you control the amount of fat in your diet if you eat in restaurants? Restaurants must provide healthy meals that are low in fat, salt, and cholesterol. A diet is a personal thing. Restaurant owners should not make customers feel embarrassed because they want
19、 to follow a diet that is good for them. Restaurant owners must learn to give equal service to customers on a healthy diet. Some restaurants have items on the menu marked with a heart to show that they are low in fat, cholesterol, salt, or sugar. A few restaurants serve only these recipes. Heart dis
20、ease causes one out of every four deaths in East Harlem in New York City. The East Harlem Healthy Heart Program is an educational program. It has 2 goals: to get people to change their diets and to find volunteers to help run educational activities. One way it educates is by street shows. Actors wea
21、r costumes and carry big pieces of plastic fat. They entertain so people will listen. Groups of children perform songs and dances that educate people about heart disease and diet. Volunteers lead walking and exercise groups to show people how to begin exercising. Volunteers also stand in supermarket
22、s to suggest healthy food choices to shoppers. The volunteers have shoppers taste two kinds of milk to see which tastes better. Most people are surprised that the low-fat milk tastes better than the whole milk. Shoppers are encouraged to buy low-fat milk instead of whole milk. Education costs money,
23、 but it also brings results. In 1983, only 35 percent of the American public knew their cholesterol levels. By 1990, 65 percent of the people had had theirs checked. People feel better if they lower their cholesterol through diet. Healthy people are more confident. They are more attractive to themse
24、lves, as well as to others. Their friends stare at them because they look so healthy. We can prevent heart disease by living a healthful lifestyle and eating the right kind of diet. If people dont do this, two out of three men and women in America will eventually get heart disease. 2 No direct relat
25、ionship has been proven between high cholesterol levels and heart attacks. （ A） Y （ B） N （ C） NG 3 Boys have a higher risk of developing heart disease than girls. （ A） Y （ B） N （ C） NG 4 Old people shouldnt bother to change their eating habits because its too late for it to do them any good. （ A） Y
26、（ B） N （ C） NG 5 Low-fat diets always taste bad. （ A） Y （ B） N （ C） NG 6 It can be easier to change our diet a lot than to change it a little. （ A） Y （ B） N （ C） NG 7 More than twice as many people had their blood cholesterol levels checked in 1990 as in 193. （ A） Y （ B） N （ C） NG 8 The article deal
27、s with the link between cholesterol and heart disease and the suggestions to pre- vent them. （ A） Y （ B） N （ C） NG 9 Children should learn more responsibility or their health through _. 10 One of the educational activities in East Harlem Healthy Heart Program is _. 11 Consumers are encouraged to buy
28、 low-fat milk rather than _. 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 que
29、stion 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） He doesnt have a computer. （ B） He cant understand the instructions. （ C） He needs to take his computer to be repaired. （ D） He has a Doctors degree in comput
30、er science. （ A） They should wait patiently. （ B） They should ask that man to leave. （ C） That man is old enough to order things he likes. （ D） They should serve that man immediately. （ A） His suit is too old to wear. （ B） He doesnt want to buy new clothes. （ C） He is just looking forward to buying
31、a new suit. （ D） Both of them need to buy new clothes. （ A） Shell make a better website. （ B） Shell introduce a better website. （ C） Shell find a better name for the website. （ D） Shell help him look for a better website. （ A） She really wants to get involved. （ B） The wait is too long for her to be
32、ar. （ C） She has waited too long for it to start up. （ D） She thinks they take too long to start up the club. （ A） In a zoo. （ B） In a park. （ C） In a supermarket. （ D） In a pet store. （ A） He hasnt been able to find an inexpensive piano yet. （ B） Hes looking for a place to store the piano. （ C） He
33、decided not to sell the piano. （ D） No one has bought the piano. （ A） The womans source of information is reliable. （ B） He didnt enjoy taking history with Dr. Parker. （ C） He thought Dr. Parkers tests were easy. （ D） Dr. Parker is no longer teaching history. （ A） Purchase her plane ticket. （ B） Cha
34、nge her plane ticket. （ C） Pick up a passport application form. （ D） Arrange for her accommodations in Europe. （ A） She doesnt have time to move. （ B） She would have difficulty finding another apartment. （ C） Shes paid her rent for the summer in advance （ D） She doesnt want to paint another apartmen
35、t. （ A） Three weeks. （ B） One month. （ C） Three months. （ D） Over a year. （ A） When to move. （ B） Where to live the following year. （ C） How much time to spend at home. （ D） Whose house to visit. （ A） Take some money to the housing office. （ B） Inform the director of student housing in a letter. （ C
36、） Fill out a form in the library. （ D） Maintain a high grade average. （ A） Both live on campus: （ B） Both live off campus. （ C） The man lives on campus; the woman lives off campus. （ D） The woman lives on campus; the man lives on campus. （ A） Grades. （ B） Privacy. （ C） Sports. （ D） Money. Section B
37、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. （ A） Very well. （
38、 B） Just so-so. （ C） Excellently. （ D） Terribly. （ A） Found a job in a big firm. （ B） Tried to get a .job. （ C） Gambled all the time. （ D） Became a manager. （ A） Just very easy. （ B） Not so hard. （ C） Simply a headache. （ D） Impossible. （ A） Someone who spends a lot of their spare time playing footb
39、all. （ B） Someone who hunts wild animals and birds. （ C） Someone who sells shoes and shirts. （ D） Someone who is paid for the sport they compete in. （ A） All professional athletes. （ B） All stars. （ C） A few stars. （ D） International tennis stars. （ A） Advertise products for companies. （ B） Sell wat
40、ches and food. （ C） Sell shirts and shoes. （ D） Compete in a game. （ A） Beasts. （ B） Herbivorous. （ C） Carnivorous. （ D） Dinosaurs. （ A） 150 years ago. （ B） 60 million years ago. （ C） 16 million years ago. （ D） 150 million years ago. （ A） By digging site. （ B） By reconstructing skeletons. （ C） By ob
41、serving them closely. （ D） By living with them. （ A） Scientists have studied them for centuries. （ B） They were meat eating as well as plant eating. （ C） They wandered the earth for millions of years. （ D） They lived on land, in the sea, and in the sky. Section C Directions: In this section, you wil
42、l 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
43、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 The【 B1】 _of closed-circuit television and other new electronic teaching tools is so great that it is【 B2】 _to visualize “the school of tomorrow
44、.“ Televised lessons will【 B3】 _from a central building having perhaps four or five master【 B4】 _. The lessons will be carried into classrooms all over a city, or even an entire country. After a televised lesson has beer given, the classroom teacher will take over for the all-important “follow-up“ p
45、eriod. The students will ask any【 B5】 _. questions, and difficult points will be【 B6】 _up through discussion. The teacher in the classroom will have【 B7】 _electronic tools. On the teachers desk, the【 B8】 _bright red apple will have been replaced by a multiple-control panel and magnetic tape players.
46、【 B9】 _. The lessons will be specifically changed to the students levels of ability. For instance, while the class as a whole studies history,【 B10】 _【 B11】 _In this way, the teacher will be able to conduct three classes at the same time 37 【 B1】 38 【 B2】 39 【 B3】 40 【 B4】 41 【 B5】 42 【 B6】 43 【 B7】
47、 44 【 B8】 45 【 B9】 46 【 B10】 47 【 B11】 Section A Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each
48、choice in the bank is identified by a letter. Please mark the corresponding letter for each item with a single line through the center. You may not use any of the words in the bank more than once. 47 On the morning of May 90,1927, Charles A. Lindbergh took off from a muddy airfield in New York and h
49、eaded for Paris. Fourteen hours later he was still flying. During the fourteen hours, he had had some【 S1】 _moments. Sleet had gathered on the【 S2】 _of the plane and the fog was so thick that he could hardly see the Lips of the wings. However, he had encountered equally dangerous flying conditions before. Of course, now that he was over the ocean his parachute was useless. He had only one choice; he had to go on. Alone in the plane
