北大15秋《大学英语3》作业4答案Word格式文档下载.docx

1、B. B. vastlyC. C. enormouslyD. D. largelyA3.Jean did not have time to go to the concert last night because she was busy _ for her history examination.A. A. to prepareB. B. preparingC. C. to be preparedD. D. being prepared4.By the end of this month, we surely _ a satisfactory solution to the problem.

2、A. A. have foundB. B. will be findingC. C. will have foundD. D. are findingC5.Helen was much kinder to her youngest child than she was to the others, _, of course, made the others jealous.A. A. whomB. B. thatC. C. whatD. D. whichD6.Linda, _ has lived next door to me about 10 years, will move to anot

3、her city soon.A. A. whoB. B. whichC. C. thatD. D. what7.The visitors felt greatly surprised at _ they saw in the museum.B. B. whoseC. C. how8.On no account _ held responsible for the accident.A. A. the driver can beB. B. can the driver beC. C. the driver docs beD. D. does the driver be9._ by his fri

4、end for his mistake, Jim felt very unhappy.A. A. CriticizingB. B. To criticizeC. C. CriticizedD. D. Having criticized10.Our sports meet is planned to take place _ Saturday morning.A. A. inB. B. atC. C. onD. D. of11.You cant afford to let the situation get worse. You must take _ to put it right.A. A.

5、 decisionsB. B. directionsC. C. sidesD. D. steps12.How these big stones were moved to the mountain tops remains a _, that is, nobody knows how.A. A. mysteryB. B. possibilityC. C. responsibilityD. D. faith13.Michael Jackson traveled and sang all around the world, _ his audience with music, dance and

6、fashion.A. A. entertainingB. B. awardingC. C. givingD. D. proving14.To improve efficiency the factory _ most of its workers with robots.A. A. operatedB. B. replacedC. C. contributedD. D. accomplished15.Fred: Hi, Paul, do you live near here?Paul: _ I moved out to the suburbs.A. A. Hi, Fred, how do yo

7、u do?B. B. Hi, Fred, Im very well, thanks.C. C. Yes, I do.D. D. No, I dont.16.改错请在以下句子划线部分中，挑出错误的选项。Weather permit, well have the match tomorrow.A. A. WeatherB. B. permitC. C. haveD. D. tomorrow17.Dont you think its the most worst film we have seen since we came here ten years ago?A. A. Dont youB. B

8、. the most worst filmC. C. have seenD. D. since18.She is as gifted as she is more intelligent.A. A. isB. B. giftedC. C. moreD. D. intelligent19.The teacher, as well as his students, were present at the meeting.A. A. teacherB. B. wereC. C. atD. D. meeting20.Walking alone in the desert, the traveler i

9、s boring.A. A. WalkingB. B. inC. C. travelerD. D. boring-21.请阅读以下文章，回答文章后的五个小题。每个小题只有一个最佳选项。Is that 6 a.m. workout getting in the way of good sleep? Dont think your fat cells wont notice. A new study published in The Annals of Internal Medicine （a medical journal） finds that inadequate shut-eye has

10、a harmful effect on fat cells, reducing their ability to respond to insulin （胰岛素） by about 30 percent. Over the long-term, this decreased response could set the stage for type-2 diabetes （a medical condition in which someone has too much sugar in his or her blood）, fatty liver disease and weight gai

11、n.The study adds to a growing body of evidence that there “an intimate relationship between the amount of sleep we get and our ability to maintain a good, healthy body weight,” says sleep expert Helene Emsellem, director of the Center for Sleep and Wake Disorders in Chevy Chase, Maryland. But Americ

12、ans dont seem to be getting the message that we need seven to nine hours par night. More than 1 in 5 of us, according to a report from the Centers for Disease Control and Prevention, is getting six or fewer hours of sleep per night, on average.So how did researchers study fat cells in the Annals pap

13、er? Matthew Brady of the University of Chicago and a group of colleagues selected and persuaded seven volunteers to take part in the research project. They were all young, thin and healthy and agreed to sleep for eight nights in a sleep lab. “For four nights they were allowed to stay in bed for 8.5 hours a night,” says Brady. Then, a month later, they came back for four additional nightsbut this time they were allowed just 4.5 hours of sleep per night. And after each visit, researchers got a sample of their fat. Brady explains that the fat cells responded significantly to