大学英语四级266及答案解析.doc

1、大学英语四级 266及答案解析(总分：746.59，做题时间：130 分钟)一、Writing (30 minutes)(总题数：1，分数：30.00)1.What do you think about the future of earth? Are you pessimistic, or optimistic? Give your opinions on A Hundred Years from Now in a passage of about 120 words. 1. Some people are pessimistic when they think about the futu

2、re. 2. Other people believe that man adapts very easily. 3. If we are to have a bright future, we have to take measures now. （分数：30.00）_二、Reading Comprehensio(总题数：1，分数：71.00)Whats Happening While Sleeping? Sleep is very important to humans. The average person spends 220,000 hours of a lifetime sleep

3、ing. Until about thirty years ago, no one knew much about sleep. Then doctors and scientists began doing research in sleep laboratories. They have learned a great deal by studying people as they sleep, but there is still much they dont understand. Scientists study the body characteristics that chang

4、e during sleep, such as body temperature, brain waves, blood pressure, breathing, and heartbeat. They also study rapid eye movement (REM). These scientists have learned that there is a kind of sleep with REM and another kind with no rapid eye movement (NREM). NREM is divided into three stages. In st

5、age one, when you start to go to sleep, you have a pleasant floating feeling. A sudden noise can wake you up. In stage two, you sleep more deeply, and a noise will probably not wake you. In stage three, which you reach in less than thirty minutes, the brain waves are less active and stretched out. T

6、hen, within another half hour, you reach REM sleep. This stage might last an hour and a half and is the time when you dream. For the rest of the night, REM and NREM alternate. Body movement during sleep occurs just before the REM stage. The average person moves about thirty times during sleep each n

7、ight. Sleep is a biological need, but your brain never really sleeps. It is never actually blank. The things that were on your mind during the day are still there at night. They appear as dreams, which people have been discussing for centuries. At times people believed that dreams had magical powers

8、 or that they could tell the future. Sometimes dreams are terrifying, but they are usually a collection of scattered, confused thoughts. If you dream about something that is worrying you, you may wake up exhausted, sweating, and with a rapid heartbeat. Dreams have positive effects on our lives. Duri

9、ng a dream, the brain may concentrate on a problem and look for different solutions. Also, people who dream during a good night s sleep are more likely to remember newly learned skills. In other words, you learn better if you dream. Researchers say that normal people may have four or five REM period

10、s of dreaming a night. The first one may begin only a half hour after falling asleep. Each period of dreaming is a little longer, the last one lasting up to an hour. Dreams also become more intense as the night continues. Nightmares usually occur toward dawn. People dream in color, but many dont rem

11、ember the colors. Certain people can control some of their dreams. They make sure they have a happy ending. Some people get relief from bad dreams by writing them down and then changing the negative stories or thoughts into positive ones on the written paper. Then they study the paper before they go

12、 to sleep again. Many people talk in their sleep, but it is usually just confusing half sentences. They might feel embarrassed when someone tells them they were talking in their sleep, but they probably didnt tell any secrets. Sleepwalking is most common among children. They usually grow out of it b

13、y the time they become adolescents. Children don t remember that they were walking in their sleep, and they don t usually wake up if the parent leads them back to bed. Some people have the habit of grinding their teeth while they sleep. They wake up with a sore jaw or a headache, and they can also d

14、amage their teeth. Researchers don t know why people talk, walk, or grind their teeth while they are asleep. There are lots of jokes about snoring, but it isn t really funny. People snore because they have trouble breathing while asleep. Some snorers have a condition called sleep apnea (呼吸暂停). They

15、stop breathing up to thirty or forty times an hour because the throat muscles relax too much and block the airway. Then they breathe in some air and start snoring. This is a dangerous condition because, if the brain is without oxygen for 4 minutes, there will be permanent brain damage. Sleep apnea c

16、an also cause irregular heartbeat, a general lack of energy, and high blood pressure. Most people need 7.5 to 8.5 hours of sleep a night, but this varies with individuals. Babies sleep eighteen hours, and old people need less sleep than younger people. If someone continually sleeps longer than norma

17、l for no apparent reason, there must be something physically or psychologically wrong. You cannot save hours of sleep the way you save money in the bank. If you have only 5 hours of sleep for three nights, you don t need to sleep an extra 9 hours on the weekend. And it doesn t do any good to sleep e

18、xtra hours ahead of time when you know you will have to stay up late. What should you do if you have trouble sleeping? Lots of people take sleeping pills, but these are dangerous because they are habit-forming. If you take them for several weeks, it is hard to stop taking them. Doctors say the best

19、thing is to try to relax and to avoid bad habits. If you always go to bed and get up at about the same time, this sets a good and healthy rhythm in your life. Caffeine keeps people awake, so don t drink caffeine drinks in the evening. Smoking and alcohol can also keep you awake. You may have trouble

20、 sleeping if you have a heavy meal just before you go to bed. Eat earlier in the evening. You may also have trouble steeping if you have a problem or something else on your mind. This is when you need to relax. As you lie in bed, tense the muscles in your feet and then relax them. Continue up the bo

21、dy, tensing and relaxing the muscles until you reach the head. Start with the feet again if you are still tense. Then remember some pleasant experience you had and relive it. If you are thinking about a problem or about something exciting that is going to happen the next day, get up and write about

22、it. That will help take it off your mind. You can also get up and read or watch television. Be sure to choose a book or show that is not too exciting, or you may get so interested that you won t want to go to sleep even when you feel sleepy. （分数：71.00）(1).This passage is mainly about the dreams and

23、sleeping problems that we may have during sleep. （分数：7.10）A.YB.NC.NG(2).The third stage of NREM is the time when you dream. （分数：7.10）A.YB.NC.NG(3).One s brain becomes blank when he or she doesnt have a dream. （分数：7.10）A.YB.NC.NG(4).Emotional people tend to have more dreams. （分数：7.10）A.YB.NC.NG(5).Pa

24、rents are not supposed to lead their sleepwalking children back to bed because that will wake them up. （分数：7.10）A.YB.NC.NG(6).Relaxed throat muscles block the airway of a sleeping person and leads to his/her snoring. （分数：7.10）A.YB.NC.NG(7).When one knows that he or she has to stay up late in the eve

25、ning, he or she should sleep extra hours ahead of it. （分数：7.10）A.YB.NC.NG(8).Some people can make sure these dreams have _ by controlling some of their dreams. （分数：7.10）_(9).A lack of oxygen for the brain for 4 minutes will cause _. （分数：7.10）_(10).According to doctors, the best solution to sleeping

26、problems is to try to _. （分数：7.10）_三、Listening Comprehens(总题数：1，分数：15.00)A.The woman is a close friend of the man.B.The woman has been working too hard.C.The woman is seeing a doctor.D.The woman is tired of her work.A.This apple pie tastes very good.B.His mother likes the pie very much.C.This pie ca

27、nt match his mothers.D.His mother cant make apple pies.A.Take a walk.B.Give a performance.C.Listen to the music.D.Dance to the music.A.Read an article on political science.B.Present a different theory to the class.C.Read more than one article.D.Choose a better article to read.A.The woman would under

28、stand if she did Marys job.B.The woman should do the typing for Mary.C.The woman should work as hard as Mary.D.The woman isnt a skillful typist.A.He wants to make an appointment with Mr. Smith.B.He wants to make sure that Mr. Smith will see him.C.He wants to change the time of the appointment.D.He w

29、ants the woman to meet him at three oclock.A.He gets nervous very easily.B.He is an inexperienced speaker.C.He is an awful speaker.D.He hasnt prepared his speech well.A.She didnt like the books the man bought.B.There wasnt a large selection at the bookstore.C.The man bought a lot of books.D.She want

30、ed to see what the man bought.四、Section B(总题数：2，分数：10.00)A.About Jannas attending classesB.About todays examinationsC.About the teaching syllabusD.About Jannas withdrawing from a schoolA.He is a student.B.He is a teacher.C.He is an adviser.D.He is a manager.A.She will probably attend classes regular

31、ly.B.She will probably change her mind.C.She will probably waste some money.D.She will probably withdraw from her classes.A.They are in a hotel.B.They are in a restaurant.C.They are in an ice-cream shop.D.They are in a snack bar.A.They have leek and smoked salmon tart.B.They have roast pork stuffed

32、with prunes and shallots.C.They have a main coursechicken with honey.D.They have the Manhattan clam chowder.A.He doesnt have any bread pudding.B.He doesnt have any salmon.C.He doesnt have any iced tea.D.He doesnt have any chicken soup.A.An actress.B.A photographer.C.A director.D.A driver.A.Because h

33、e wanted to have it in his new book of photographs.B.Because he thought she was beautiful.C.Because he thought she was talented.D.Because he was in love with her.A.She always tried to avoid her fans.B.She didnt like photographers and news reporters.C.She was tall.D.She had a beautiful car.A.Because

34、it takes too long to process all the applications.B.Because its resources are limited.C.Because it is a library for special purposes.D.Because there is a shortage of staff.A.Discard his application form.B.Forbid him to borrow any items.C.Cancel his video card.D.Ask him to apply again.A.One month.B.O

35、ne week.C.Two weeks.D.Two months.A.Mrs. Baker.B.Mrs. Bakers sister.C.Mr. Bakers sister.D.Mr. Baker.A.Mrs. Bakers sister cooked for him.B.Mrs. Baker cooked for him.C.Mr. Baker himself did the cooking.D.Mr. Bakers sister cooked for him.A.He had to meet his wifes sister.B.He had to meet his sister.C.He

36、 had to see his sister off.D.He had to meet his wife.六、Section C(总题数：1，分数：10.00)There are a lot of good cameras available at the momentmost of these are made in Japan but there are also good (36) 1models from Germany and the USA. We have (37) 2a range of different models to see which is the best (38

37、) 3for money. After a number of different tests and interviews with people who are (39) 4with the different cameras being assessed, our researchers (40) 5the Olympic BY model as the best auto-focus camera available at the moment. It costs $200 although you may well want to spend more (41) 6as much a

38、s another $200 on buying (42) 7lenses and other equipment. It is a good Japanese camera, (43) 8to use. (44) 9, whereas the American versions are considerably more expensive. The Olympic BY model weighs only 320 grams which is quite a bit less than other cameras of a similar type. Indeed one of the o

39、ther models we looked at weighed almost twice as much. (45) 10. All the people we interviewed expressed almost total satisfaction with it. (46) 11. （分数：10.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_七、Reading Comprehensio(总题数：2，分数：355.00)Thank-you cardsheartfelt e

40、xpressions of gratitude for gifts, services and general kindness seem to be rare in an age when the Internet continues to reduce human interaction. Although our society has changed greatly over the past century, the etiquette(礼节) of thank-you notes has not. While most people would agree that thank-y

41、ou notes under these circumstances are a necessity, there are still those who forever postpone or are forgetful for unknown reasons. And at no time of the year are thank-you notes more visible than June, the month of brides and graduations, and the beginning of summer parties. “Its a must-do thing.

42、A real thank you does not come by e-mail. They come in the mail in an envelope. And what comes out of an envelope is a beautiful thing to touch and to handle and to pass around. for everyone to read,“ said etiquette expert Letitia Baldrige. Dont think for a second that Baldrige is old-fashioned. Han

43、dwritten thank-you notesany handwritten correspondence, for that matter have taken on an air of extra importance and dignity in this e-hyper world. Baldrige remains hopeful that the art may be enjoying a renaissance(复兴). More than simply obeying rules of etiquette, thank-you cards are a sign of cari

44、ng. “Theyre more important now than ever,“ expert Peter Post says. “Youre building a relationship. And part of building that relationship is that you acknowledge when someone has done something nice for you.“ The payoff(回报), Post says, can be huge. “It will continue indefinitely,“ he says. “The more

45、 we do it, the more it comes back to us, and its a benefit to us all. It makes our world a little bit nicer place to live in. “ （分数：177.50）(1).Thank-you cards seem to become rare because_.（分数：35.50）A.interaction between people has been diminished than beforeB.the etiquette of thank-you notes has bec

46、ome out of dateC.people have found better means of expressing their thanksD.people have become forgetful in the new age(2).By saying “at no time of the year are thank-you notes more visible than June“ the writer means_.（分数：35.50）A.thank-you notes can be more easily noticed in the month of JuneB.than

47、k-you notes can be displayed to the brides or at graduation and summer partiesC.June is the month full of interaction, yet we dont write enough thank-you notesD.its better to send thank-you notes in the month of June(3).According to Letitia Baldrige_.（分数：35.50）A.real thank-you notes should be touched and handled and passed around for everyone to readB.real thank-you notes should be handwrittenC.thank you notes will become fashionable again in the new renaissanceD.thank you notes in email do not show impo