专业英语四级-187及答案解析.doc

1、专业英语四级-187及答案解析 (总分：100.00，做题时间：90分钟)一、DICTATION(总题数：5，分数：100.00)Listen to the following passages. Each passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will

2、be read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_Listen to the following passages. Ea

3、ch passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading wil

4、l be read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_Listen to the following passages. Each passage will be read to you four times. During the first reading, which will be read at normal spe

5、ed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will then be giv

6、en 2 minutes to check through your work once more. （分数：20.00）_Listen to the following passages. Each passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be

7、read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_Listen to the following passages. Each

8、passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading will b

9、e read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_专业英语四级-187答案解析 (总分：100.00，做题时间：90分钟)一、DICTATION(总题数：5，分数：100.00)Listen to the following passages. Each passage will be read to you four time

10、s. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading will be read at normal speed again and duri

11、ng this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_正确答案：()解析：听力原文 Light Pollution The idea of light pollution has developed with the increase of lights in cities. In many areas, this light makes it difficult or impossible to obs

12、erve stars and planets in the night sky. Light pollution threatens to reduce the scientific value of research telescopes. Light pollution is the result of wasted energy. Bright light that shines into the sky is not being used to provide light where it is needed on Earth. Lights that are brighter tha

13、n necessary also cause light pollution. Recently, two Italian astronomers and an American environmental scientist created a world map of the night sky. The map shows that North America, Western Europe and Japan have the greatest amount of light pollution._正确答案：()解析：听力原文 Monkeys That Eat Less Live Lo

14、nger A study of monkeys over a twenty-year period suggests that eating less may extend life and prevent disease. American researchers said they believe their findings could apply to people as well. Half of the monkeys were permitted to eat as much as they wanted. The other half ate a controlled diet

15、 The researchers found that thirty-seven percent of the monkeys that ate as much as they wanted had died of causes related to aging after twenty years. In comparison, only thirteen percent of the monkeys on restricted diets had died. In addition, the monkeys that ate less had half the amount of hea

16、rt disease and cancer. There is also a difference in the appearance. The monkeys that ate less look younger and healthier than fatter monkeys on a normal diet._正确答案：()解析：听力原文 Dangerous Lead-based Paint Common Around the World A new study shows that lead-based paint remains a worldwide threat to publ

17、ic health. Paint containing lead is a major cause of lead poisoning in children. The heavy metal enters the body when children breathe the paint dust or fumes in the air. Or when babies put their mouth on painted surfaces or swallow pieces of paint. Lead can damage the brain and the nervous system.

18、It can decrease intelligence, create behavior problems and slow a childs growth. The professor says high quality paint can be produced without lead. He and his team are calling for a worldwide ban on lead-based paint. He notes that research has found no safe level of lead._正确答案：()解析：听力原文 Expressions

19、 That Are Old and True Many proverbs give advice about how to live. For example, my son is just like his father in many ways. We often say the two of them prove the proverb that the apple does not fall far from the tree. My daughter is very short. She would like to be taller. But I tell her that goo

20、d things come in small packages, like diamonds and other jewels. Finally, I always like this proverb: You can catch more flies with honey than with vinegar. In other words, you can win people to your side more easily with gentle persuasion than by hostile actions.Listen to the following passages. Ea

21、ch passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading wil

22、l be read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_正确答案：()解析：听力原文 Death Valley: A Beautiful but Dangerous Place Death Valley is a land of beautiful but dangerous extremes. There are mounta

23、ins that reach more than three thousand meters into the sky. There is a place called Badwater that is the lowest area of land in the Western Hemisphere. Death Valley can be dangerously cold during the winter months. The extreme heat in summer has killed people in the past. It is a good example of th

24、e violence of nature. However, the Valley is full of life. Wild flowers grow very quickly after a little rain. Birds, snakes and other animals always enjoy their stay._正确答案：()解析：听力原文 Death Valley: the Coming of the Name The area was named by a woman in 1849. That was the year after gold was discover

25、ed in California. Thousands of people from other parts of the country traveled to the gold mining areas in California. One group trying to reach California decided to take a path called the Old Spanish Trail. By December, they had reached Death Valley. The people could not find a pass through the ta

26、ll mountains. Gradually, they began to suffer from a lack of food. To survive, they killed their work animals for food and began to walk out of the Valley. As they left, one woman looked back and said, Good-bye, death valley. The name has never been changed._正确答案：()解析：听力原文 An Old Saying A rolling st

27、one gathers no moss. It has several meanings. One meaning is that a person who never settles down in one place will not be successful. Another is that someone who is always moving, with no roots in one place, avoids responsibilities. This proverb was said to be first used in the 1500s. But in the 19

28、60s, the expression rolling stone became famous in the world of rock-and-roll music. Experts say it all started with a song by the American singer and guitarist Muddy Waters. His music influenced singers like Elvis Presley and Bob Dylan. In 1950, Muddy Waters recorded a song called Rollin Stone._正确答

29、案：()解析：听力原文 Study Finds More Trees on Farms Than Was Thought Farmers, especially in developing countries, are often criticized for cutting down forests. But a new study suggests that many farmers recognize the value in keeping trees. The study found that climate conditions alone could not explain th

30、e amount of tree cover in different areas. Nor could the size of nearby populations, meaning people and trees can live together. There are areas with few trees but also few people, and areas with many trees and many people. The findings suggest that things like land rights, markets or government pol

31、icies can influence tree planting and protection.Listen to the following passages. Each passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence

32、 by sentence, or phrase by phrase, with intervals of 12 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. （分数：20.00）_正确答案：()解析：听力原文 Going Digital: Californias Textbook P

33、roject California approves traditional textbooks in six-year cycles. Digital ones can offer the latest information. They lighten the load of school bags. They save paper and trees, and make learning more fun and interactive. And lastly they help schools with their finances. Earlier this year, Califo

34、rnia invited content developers to offer digital math and science materials for high schools. School administrators point out that the texts may be free online, but students need a way to access them. Not everyone has a computer or electronic reader. Schools could print out copies, but that would no

35、t help the environment. Also, there is the cost to train teachers to use digital textbooks effectively._正确答案：()解析：听力原文 American and British English Americans began to change the sound of their speech after the Revolutionary War in 1776. They wanted to separate themselves from the British in language

36、 as they had separated themselves from the British government. Webster published The American Dictionary of the English Language in 1828. It established rules for speaking and spelling the words used in American English. The different languages of the immigrants who came to the United States also he

37、lped make American English different from British English. Sometimes Americans and British people do not understand each other because of different word meanings. All these differences led British writer George Bernard Shaw to joke that Britain and America are two countries separated by the same lan

38、guage._正确答案：()解析：听力原文 Town and Country Life in England There is a big difference between town life and country life in England. In the country, everybody knows everybody else. They know what time you get up, what time you go to bed and what you have for dinner. If you want help, you will always get

39、it and you will be glad to help others. In a large town like London, however, it can sometimes happen that you have never seen your next door neighbor and you do not know his name or anything about him. People in London are often very lonely. If you walk through the streets in the centre of London on Sunday, it is like a town without people._正确答案：()解析：听力原文 A Change in Womens Life Even a few years ago most girls left school at the first opportunity, and m