【考研类试卷】考研英语-试卷287及答案解析.doc
《【考研类试卷】考研英语-试卷287及答案解析.doc》由会员分享,可在线阅读,更多相关《【考研类试卷】考研英语-试卷287及答案解析.doc(26页珍藏版)》请在麦多课文档分享上搜索。
1、考研英语-试卷 287及答案解析(总分:154.00,做题时间:90 分钟)一、Use of English(总题数:2,分数:80.00)1.Section I Use of EnglishDirections: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D.(分数:40.00)_Humans are unique in the extent to which they can reflect on themselves and others. Hu
2、mans are a-ble to 1 , to think in abstract terms, to reflect on the future. A meaningless, 2 world is an insecure world. We do not like extensive insecurity. When it 3 to human behavior we infer meaning and 4 to make the behavior understandable. What all this means is that people develop “quasi theo
3、ries“ of human behavior, that is, theories that are not developed in an objective, scientific 5 When doing so, people believe they know 6 humans do the things they do. Let“s consider an example. In the United States people have been 7 with the increasing amount of crime for several years. The extent
4、 of crime bothers us; we ourselves could be 8 But what also bothers us is that people behave in such ways. Why can such things happen? We develop quasi theories. We 9 concerned about the high crime rate, but we now believe we 10 it; our criminal justice system is 11 ; people have grown selfish and i
5、nconsiderate as our moral values 12 from the influence of liberal ideas; too many people are 13 drugs. These explanations suggest possible solutions. 14 the courts; put more people in jail as 15 to other law breakers. There is hope that the problem of crime can be solved if only we 16 these solution
6、s. Again, the world is no longer meaningless nor 17 so threatening. These quasi theories 18 serve a very important function for us. But how accurate are they? How 19 will the suggested solutions be? These questions must be answered 20 how people normally go about developing or attaining their quasi
7、theories of human behavior.(分数:40.00)A.understandB.reasonC.meditateD.reckonA.unanimousB.unimaginableC.disorganizedD.unpredictableA.comesB.getsC.goesD.amountsA.initiativesB.illustrationC.conclusionsD.motivesA.meansB.mediumC.mannerD.approachA.whetherB.howC.whenD.whyA.concernedB.worriedC.disturbedD.inv
8、olvedA.preysB.victimsC.casualtiesD.sacrificesA.retainB.maintainC.remainD.refrainA.knowB.understandC.comprehendD.graspA.deficientB.precautiousC.destructiveD.inadequateA.weakenB.shrinkC.circumscribeD.evadeA.withB.againstC.forD.onA.StrengthenB.StiffenC.IntensifyD.ConsolidateA.examplesB.modelsC.casesD.s
9、amplesA.see toB.work outC.act onD.come up withA.quiteB.ratherC.veryD.muchA.moreoverB.otherwiseC.neverthelessD.thereforeA.effectiveB.efficientC.proficientD.sufficientA.with respect toB.as a result ofC.on behalf ofD.in line with二、Reading Comprehensio(总题数:12,分数:70.00)2.Section II Reading Comprehension_
10、3.Part ADirections: Read the following four texts. Answer the questions below each text by choosing A, B, C or D._When stars like our Sun die, they bloat to become red giants and then eject gigantic clouds of gas and dust into space. Increasingly, however, scientists found themselves at a profound l
11、oss to explain how exactly dying stars could blow away these clouds. Now astrophysicists propose that unexpected chemical reactions during the formation of stardust could help solve this mystery. Stars smaller than the Sun and up to eight times as massive die by swelling up into red giants before sh
12、edding most of their mass to shrink into very compact, dying embers(灰烬) called white dwarfs. Two kinds of red giants exist-those with lots of carbon, and others richer in oxygen than in carbon. Carbon-rich stars release carbon particles during their death throes. Scientists proposed these pitch-blac
13、k grains absorb rays from the dying star and get shot into space by starlight, a theory that fit both the observations and computer models. Increasingly, however, researchers could not explain how oxygen-rich stars like our own Sun could propel their clouds away during the final stages of mass loss.
14、 Oxygen-rich stars create large quantities of water vapor and silicates, such as quartz(石英砂) or sand. These are transparent, meaning starlight should go right through them. Possible solutions have been contemplated by scientists. They first pondered whether the silicates might have iron in them, whi
15、ch would render them opaque instead of transparent. But calculations showed the dust grains would have evaporated if they had iron in them. They next wondered if enough molecules surrounded the core of a dying oxygen-rich star to block out its light and thus create a wind that blew the star“s outerm
16、ost layer into space. But their models suggested these molecules could not block off enough light and create strong enough Rinds. The scientists then suggested that pulsations occurred when stars die could perhaps force a star“s matter out, but this idea did not match with astronomers“ observations.
17、 But inspiration then dawned upon them. Perhaps some of the carbon in the oxygen-rich stars could help force the outer layers of the stars into space. They believe shock waves from the pulsations of dying stars could make carbon in oxygen-rich stars form pitch-black dust. “The theory fits with all o
18、ur subsequent model calculations, and it matches observations from dying oxygen-rich red giants“. Moreover“, this mechanism strongly favors the presence of magnesium silicates over iron silicates in the interstellar medium“, in agreement with recent findings from NASA“s comet-sampling Stardust space
19、 probe. If proven correct, the beauty of the new scenario is that it suggests a common driving mechanism for many dying stars shedding their mass via dusty winds“, with possible long-reaching consequences for the origin of chemical elements relevant for life“.(分数:10.00)(1).By introducing the theory
20、of red giant, the author intends to _(分数:2.00)A.explain-the possible way of death of our Sun.B.show the two types of red giants.C.discuss on the way of red giants to become white dwarfs.D.explore the origin of life.(2).Which of the following is true of the text?(分数:2.00)A.There are more than two typ
21、es of red giants.B.Carbon-rich star releases carbon when it dies.C.Stardust mainly consists of carbon, iron and silicon.D.Star reposes during the process of death.(3).When our Sun dies, it may _(分数:2.00)A.shed most of its mass to the space and shrink into a dwarf directly.B.break up into pure water
22、and sand.C.blow its transparent outermost layer into space by starlight.D.bloat to a red giant and make carbon from pitch-black dust.(4).According to the author, the new discovery about Oxygen-rich red giants _(分数:2.00)A.is significant for the explanation of the origin of life.B.can prevent the Sun
23、from death.C.is able to well describe the death of white dwarfs.D.has been proven to be true.(5).The major component of the “pitch-black dust“(Line 5, Paragraph 3) should be _(分数:2.00)A.iron.B.magnesium.C.silicate.D.carbon.With 22 years on the job, Jackie Bracey could be considered a career employee
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
2000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 考研 试卷 英语 287 答案 解析 DOC
