1、北京大学15秋大学英语3作业5答案北京大学15秋大学英语3作业5答案1.鼓励独立完成作业，严禁抄袭。词汇与结构Please give Jim the schedule for tomorrows conference when he back. He is to chair the conference.A. A. will comeB. B. comeC. C. comesD. D. cameC2. five minutes earlier, you would not have missed the last train for Shanghai, but you were late.大学
2、英语3答案A. A. Had you comeB. B. Do you comeC. C. Did you comeD. D. Should you comeA3.After he worked out the solution, appeared a smile on his face.A. A. itB. B. hereC. C. whatD. D. thereD4.the former presidents supporters went out in streets to express their anger and dissatisfaction.A. A. A small amo
3、unt ofB. B. A large number ofC. C. A little bit ofD. D. A great deal ofB5.To be honest, todays dinner was just so-so. It wasnt such a good one _ promised by the boss.A. A. thatB. B. whichC. C. asD. D. whatC6.So many people _ the meeting had to be put off.A. A. being absentB. B. to be absentC. C. wer
4、e absentD. D. had been absentA7.We often advise him not to drink more is good for his health.A. A. asB. B. thatC. C. thanD. D. butC8.Did Charles vote in the last election?No, he wasnt .A. A. enough old thenB. B. then enough oldC. C. old then enoughD. D. old enough thenD9.By no means look down on tho
5、se who are less lucky in life than we are.A. A. we shouldB. B. should weC. C. we should notD. D. should we notB10.He didnt feel like that day so he stayed indoors reading.A. A. workingB. B. worksC. C. to workD. D. workedA11.No sooner had we started on the road it began to rain.A. A. whenB. B. thanC.
6、 C. thenD. D. wheneverB12.He decided to go for a sailing holiday the fact that he was usually seasick (晕船).A. A. because ofB. B. in spite ofC. C. in case ofD. D. as a result ofB13.What you do in your spare time is your own _ . However it should not be harmful to others.A. A. businessB. B. purchaseC.
7、 C. bargainD. D. saleA14.As a gardener, Jim has to water the flowers and the grass in the garden every morning.A. A. trimB. B. improveC. C. refineD. D. repairA15.The firemen are still the small fires started by the plane crash.A. A. taking offB. B. setting asideC. C. getting along withD. D. putting
8、outD16.改错请在以下句子划线部分中，挑出错误的选项。The sun gives off light and warmth, that makes it possible for plants to grow.A. A. gives offB. B. thatC. C. itD. D. forB17.Sand painting has also called dry or earth painting and is practiced byseveral American Indian artists.A. A. has also calledB. B. andC. C. is pract
9、icedD. D. several American Indian artistsA18.Humans, like many other animals, are warm-blooded with a fairly constantly body temperature.A. A. HumansB. B. likeC. C. withD. D. fairly constantlyD19.Now that the stress of examinations and interviews are over, we can all relax for a while.A. A. Now that
10、B. B. areC. C. allD. D. relaxB20.The talleBst of the twins went to search for the missing jewels, the picture of which you saw in todays newspaper.A. A. tallestB. B. search forC. C. the picture ofD. D. whichA-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。The top of the world is a wonderland. In winter, the tem
11、perature often falls to -30F and the sun never rises. The ocean is surrounded by frozen ground. There are few people or trees, but to polar bears, the Arctic(北极)is home.Polar bears have thick fur, big paws and other features that make them well prepared for life in their tough environment. In fact,
12、they need the Arctic sea ice for survival. But climate change is causing larger and larger areas of summer sea ice to melt (融化). Experts say that if warming patterns continue, the Arctic could be free of summer sea ice by 2050. That may cause two-thirds of the worlds 20,000 polar bears to be gone by
13、 then too.Polar bears cant survive for long on land. Seals are their main source of food. The only place where polar bears can hunt seals is on the ice. (79) Although these bears are strong swimmers, they are no match for lightning swift seals in the water. A polar bear has brilliantly clever strate
14、gies to overcome this disadvantage. In winter the bear waits motionless beside a seals breathing hole, which is a narrow tunnel through the ice. Often many hours pass before the seal comes up for air and the bear kills it with a powerful blow of its paw. In summer, the polar bears that live on land
15、eat very little and wait for the sea ice to return.With the sea ice forming later in the year and melting earlier, polar bears do not have enough opportunity to hunt and eat. Less sea ice makes it harder for the bears to catch the seals. The bears must swim longer distances between ice packs(大片浮冰),
16、and they cant always make it. The ice is also getting thinner. These conditions can cause polar-bear cabs to become separated from their mothers, who provide them with food.Steven Amstrup is the chief scientist of Polar Bears International. The group aims to save the bears and their home. 1.Which is
17、 the best title for the passage?单选题A. A. Climate Change in the ArcticB. B. How to Protect the EnvironmentC. C. The Arctic Ts Home to Polar BearsD. D. Polar Bears in DangerD2.Where do polar bears usually hunt seals?单选题A. A. On land.B. B. In open water.C. C. In openings in the sea ice.D. D. At the bot
18、tom of the sea.C3.The word 单选题A. A. adultsB. B. babiesC. C. huntersD. D. enemiesB4.According to the passage, which of the following statements is TRUE?单选题A. A. Starving polar bears are increasingly coming into villages, where they may be killed either for food or safety.B. B. Polar bears can spend t
19、heir entire lives on land if the sea ice melts completely.C. C. Two-thirds of the worlds polar bears may disappear by 2050 as global warming continues.D. D. The growing distance between ice packs is not a problem for polar bears, because they are excellent swimmers.C5.Whats the mission of Polar Bear
20、s International?单选题A. A. Saving energy.B. B. Conducting scientific research.C. C. Seeking international cooperation.D. D. Saving polar bears and their home.D-22.When were learning a foreign language, making sense of what we hear is the first step toward fluency. It sounds obvious, but until recently
21、, we didnt know much about how listening works. New research demonstrates that effective listening involves more than simply hearing the words that float past our ears. Rather, its an active process of receiving information and making meaning. This kind of engaged listening is a skill thats as criti
22、cal for learning a range of subjects at school and work as it is for learning to understand a foreign tongue.Studies of skilled language learners have identified specific listening strategies that lead to superior comprehension. Last year, for example, University of Ottawa researcher Larry Vandergri
23、ft published his study of 106 undergraduates who were learning French as a second language. Half of the students were taught in a conventional fashion, listening to and practicingtexts spoken aloud. The other half, possessing the same initial (最初的) skill level and taught by the same teacher, were gi
24、ven detailed instruction on how to listen. It mined out that the second group “significantly outperformed”(胜过) the first one on a test of comprehension.So what are these listening strategies? Skilled learners go into a listening class with a sense of what they want to get out of it. They set a goal
25、for their listening and they generate predictions about what the speaker will say. Before the talking begins, they mentally review what they already know about the subject, and form an intention to “listen out for” whats important or relevant. Once they begin listening, these learners maintain their
26、 focus; if their attention wanders, they bring it back to the words being spoken. They dont allow themselves to be thrown off by confusing or unfamiliar details. Instead, they take note of what they dont understand and make inferences about what those things might mean, based on other clues availabl
27、e to them: their previous knowledge of the subject, the context (语境) of the talk, the identity of the speaker, and so on.1.What is the main idea of this passage?单选题A. A. Effective listening means hearing the words that float past our ears.B. B. Developing your listening skills is the first step towa
28、rd developing fluency.C. C. Skilled listeners use specific strategies to get the most out of what they hear.D. D. Listening is one of the most powerful tools we have to gain information.C2.What does Vandergrifts research show?单选题A. A. Learners who adopt specific listening strategies become better li
29、steners.B. B. Learners taught in the traditional way are better at reinforcing what they learn.C. C. Learners are more confident if they make fewer mistakes.D. D. Learners who listen on a regular basis improve faster.A3.Which of the following statements about Vandergrifts research is TRUE?单选题A. A. T
30、he participants were postgraduates learning French as a second language.B. B. All the participants were taught using the conventional method, with the focus on listening strategies.C. C. The two groups were taught by different teachers.D. D. The participants were at the same initial skill level.D4.The expression “thrown off” in the third paragraph is closest in meaning to“_”.单选题A. A. infectedB. B. confusedC. C. ruinedD. D. informedA5.According to the passage, which of the following strategies is NOT used by skilled learners? 单选题A. A. Review their prior k
