《大学英语三》作业.docx

1、大学英语三作业大学英语（三）作业Part I. Reading ComprehensionDirections: There are three passages in this part. Each passage is followed by some questions. For eachof them there are four choices marked A, B, C and D. You should decide on the best choice. Passage 1In the summer of 1978 an English farmer named Ian St

2、evens was driving his tractor through a field of wheat when he discovered something strange. Some of his wheat was lying flat on the ground. The flattened （被压平的） wheat formed a circle about six meters across. Around this circle were four smaller circles of flattened wheat. In the following years mor

3、e and more similar circles were found in a field of wheat or corn. So people cannot help but ask the question: What causes the circles? At first, people suspected that the circles were a trick. To prove that the circles were a trick, people tried to copy them: they tried to make circles exactly like

4、 the ones the farmers had found. They couldnt do it. They couldnt enter a field of grain without leaving tracks, and they couldnt flatten the grain without breaking it. The circles are apparently not a trick. Many people believe that beings from outer space are making the circles. Some think that th

5、e beings are trying to communicate with us from far away and that the circles are messages from them. Others believe that the beings have actually landed on earth and that the circles are marks left by their spaceships. Several times people reported seeing strange flying objects near fields where ci

6、rcles later appeared. Scientists say theyre not sure what causes them. They have suggested several theories. For example, some scientists say that microbursts of wind created the circles. A microburst is a downward rush of cool air the same downward rush of air that sometimes causes an airplane to c

7、rash. Others scientists say that forces within the earth cause the circles to appear. But circles often appear in forms. It is hard to believe that any natural force could create those forms. And recently farmers have discovered not only circles but also other shapes such as triangles in their field

8、s. Could any natural force created a perfect triangle in a field of grain? In the summer of 1990 some scientists spent three weeks in the part of England where many circles have appeared. They had all the latest high-tech equipment. This equipment worth 1.8 million dollars recorded nothing. But one

9、night, as the scientists were watching a field, circles formed in the field behind them. These circles are shown in the photograph. The scientists had neither seen nor heard anything. (402 words) 1. What causes the circles?A. Teenagers. B. Farmers. C. Flying objects. D. None of the above.2. The thin

10、g that proves that the circles were not a trick is that _.A. two men said they made the circles themselvesB. farmers were making the circles to attract touristsC. people cannot copy the circles without leaving marks or breaking the grainD. scientists suggest theories that support the idea that circl

11、es were made by natural forces3. The circles mean _.A. that beings from outer space are trying to communicate with human beingsB. that beings from outer space have visited the earthC. that there do exist strange flying objectsD. none of the above4.The only thing for the scientists to be happy about

12、in the summer of 1990 is possibly _.A. that they discovered how the circles were madeB. that they saw the circles with the help of the latest high-tech equipmentC. that they were able to show the circles in a photographD. none of the above5. A proper title for this passage is _.A. An Unsolved Myster

13、y B. Strange Flying ObjectsC. The Power of Natural Forces D. The Discovery of Strange CirclesPassage 2In the early days of sea travel, seamen lived entirely on salted meat and biscuits. Many of them died of scurvy (坏血病), a disease of the blood which causes swollen gums, pale white spots on the flesh

14、 and general exhaustion. On one occasion, in 1535, an English ship arrived in Newfoundland with its crew seriously ill. The mens lives were saved by Iroquois Indians who gave them vegetable leaves to eat. Gradually it came to be realized that scurvy was caused by some lack in the sailors diet and Ca

15、ptain Cook, who was to discover Australia and New Zealand, established the fact the scurvy could be avoided by provision of fresh fruit for the sailors. Nowadays it is understood that a diet which contains nothing harmful may yet result in serious disease if certain important elements are missing. T

16、hese elements are called vitamins. Quite a number of such substances are known and they are given letters to identify them, A, B, C, D, and so on. Different diseases are associated with deficiencies of particular vitamins. Even a slight lack of Vitamin C, for example, the vitamin most plentiful in f

17、resh fruit and vegetables, is thought to increase significantly our possibility of getting bad colds. The vitamins necessary for a health body are normally supplied by a good mixed diet, including a variety of fruit and green vegetables. It is only when people try to live on a very restricted diet,

18、say during extended periods of religious fasting (禁食), or when trying to lose weight, that it is necessary to make special provision to supply the missing vitamins. (274 words) 1. Scurvy is a disease which causes _.A. loss of blood B. swollen limbsC. exhaustion D. bright red spots on the flesh2. A d

19、iet which contains nothing harmful _.A. may yet cause scurvy B. has plenty of vitaminsC. will usually result in serious disease D. always ensures good health3. Deficiencies of the various vitamins _.A. cause identical diseasesB. are not serious except in the case of vitamin CC. cause different disea

20、sesD. are often caused by scurvy4. Fresh fruit and vegetables _.A. contain more vitamin C than any other foodB. decrease our resistance to coldsC. contain every kind of vitaminD. increase our possibility of getting bad colds5. A good mixed diet _.A. normally contains enough vitamins B. still needs s

21、upplementing with vitaminsC. is suitable for religious fasting D. is often difficult to arrangePassage 3He had uncombed hair, dirty clothes, and only 35 cents in his pocket. In Baltimore, Maryland, he got on a bus and headed straight for the restroom. He thought that if he hid in the restroom, he co

22、uld ride to New York without paying. But a passenger at the back of the bus saw him. She tapped the person in front of her on the shoulder and said, Theres a bum（乞丐）in the restroom. Tell the bus driver. That passenger tapped the person sitting in front of him. Tell the bus driver theres a bum in the

23、 restroom, he said. The message was passed from person to person until it reached the front of the bus. But somewhere along the way, the message changed. By the time it reached the bus driver, it was not Theres a bum in the restroom but Theres a bomb in the restroom. The driver immediately pulled ov

24、er to the side of the highway and radioed the police. When the police arrived, they told the passengers to get off the bus and stay far way. Then they closed the highway. That soon caused a 15-mile-long traffic jam. With the help of a dog, the police searched the bus for two hours. Of course, they f

25、ound no bomb. Two similar-sounding English words also caused trouble for a man who wanted to fly from Los Angeles to Oakland, California. His problems began at the airport in Los Angeless. He thought he heard his flight announced, so he walked to the gate, showed his ticket, and got on the plane. Tw

26、enty minutes after takeoff, the man began to worry. Oakland was north of Los Angeles, but the plane seemed to be heading west, and when he looked out his window all he could see was ocean. Is this plane going to Oakland? he asked the flight attendant （服务员）. The flight attendant was shocked. No, she

27、said. Were going to Auckland Auckland, New Zealand. When a Korean woman who lives in the United States arrived at work one morning, her boss asked her, Did you get a plate? No. she answered, wondering what in the world he meant. She worked in an office. Why did the boss ask her about a plate? At fiv

28、e oclock, when she was getting ready to go home, her boss said, Please be on time tomorrow. You were 15 minutes late this morning. Sorry, she said. My car wouldnt start, and . Suddenly she understood. Her boss hadnt asked her, Did you get a plate? He had asked, Did you get up late? English is not th

29、e only language with similar-sounding words. Other languages, too, have words that can cause misunderstandings, especially for foreigners. Auckland and Oakland. A plate and up late. When similar-sounding words cause a misunderstanding, probably the best thing to do is just laugh and learn from the m

30、istake. Of course, sometimes its hard to laugh. The man who traveled to Auckland instead of Oakland didnt feel like laughing. But even that misunderstanding turned out all right in the end. The airline paid for the mans hotel room and meals in New Zealand and for his flight back to California. Oh we

31、ll, the man later said, I always wanted to see New Zealand. (551 words) 1. The 15-mile-long traffic jam was originally caused by _.A. the woman who tapped the person in front of herB. the driver who radioed the policeC. the police who blocked the roadD. the change of the message from there is a bum

32、to there is a bomb2. Before he knew it, the man arrived in _.A. Oakland B. Auckland C. Los Angeles D. California3. The word plate (Para.6) is more possibly associated with work in _.A. an office B. a workshop C. a restaurant D. a shop4. The sentence Oh well, I always wanted to see New Zealand. reflects _.A. the mans sense of humor B. the mans frustrationC. the mans disappointme