[考研类试卷]考研英语(阅读)模拟试卷163及答案与解析.doc
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1、考研英语(阅读)模拟试卷 163 及答案与解析Part CDirections: Read the following text carefully and then translate the underlined segments into Chinese. (10 points) 0 The season of “capital P“ politics is upon us in the United States. To most scientists and engineers, the vapid debates and tawdry verbal tit for tat from
2、 the candidates define politics and politicians.【F1】When empty slogans and tricky statistics win out over sound analysis and quantitative reasoning, many members of the scientific community retreat to the comfort of their laboratories or lecture halls.“Little P“ politics is also a derisive term to m
3、any scientists. It is used to describe a process that operates on influence, opinion, and conflicted interest rather than merit, honesty, integrity and data. Many scientists and engineers believe life in academia is rife with “politics,“ especially when decisions are made that they disagree with!Sci
4、ence is about building intellectual consensus. In this respect, it is politics. Understanding how to connect with and influence others is a critical skill in science, especially in an environment of scarce resources.In science, making decisions about how to allocate finite resources(research and dev
5、elopment dollars, journal pages, tenure-track positions)inevitably involve dialog, consensus building, and compromisethe fundamental tools of politics.【F2 】The culture of science is rooted in the belief that data, rational argument, and logic constitute the foundation upon which all decisions should
6、 be based. But scientists would be the first to admit that it is rare that a set of data is so complete and compelling that all counter-arguments can be laid to rest. Most of the time, scientists are working on subjects for which the answers remain unclearthats why they are investigating them in the
7、 first place! So the need for persuasion lies even within the heart of scientific inquiry.【F3】Scientists believe that they are, collectively and individually, engaged in an endeavor that merits public support. In the extreme, there is bred in our culture of science a level of entitlement to public f
8、inancial support for research. When members of Congress fail to pass funding increase upon funding increase, year after year, the scientific community reacts with disbelief and indignation.Firstand most central to their careeris the political process of doing science and influencing the opinions of
9、their scientific peers.【F4 】The foundation of this political process is good scientific workbut to ensure that their science flourishes, they have to engage the scientific community smartly and effectively, with honor and integrity.But being at their most effective as a scientist also requires const
10、ant engagement in a broader sense, not just with the politicians in Washington, D. C. , but with the people around them who vote them into office. Given the intense and busy nature of most scientific careers, it is easy to feel that one simply has no time for such constructive engagement. Furthermor
11、e, most scientists are given no guidance about the most effective and time-efficient methods of civic engagement.【F5】But rather than look down on the process of politics, the successful scientists and engineers of the future will find ways of understanding and participating in “politics“ while not l
12、osing sight of the higher ideals of their scientific community.1 【F1】2 【F2】3 【F3】4 【F4】5 【F5】5 【F1】A once-discarded idea about how life started on our planet has been given a new life of its own, thanks to an unexpected find.【F2】The story traces back to the early 1950s, when chemists Stanley Miller
13、and Harold Urey of the University of Chicago tried to recreate the building blocks of life under conditions they thought resembled those on the young Earth. The duo filled a closed loop of glass chambers and tubes with water and different mixes of hydrogen, ammonia, and methane-gases presumed at the
14、 time to be the main constituents of the atmosphere billions of years ago. Then, in an attempt to confirm a hypothesis that lightning may have triggered the origin of life, they zapped the mixture with an electrical current. The researchers then analyzed the gunk that began to collect after a few ho
15、urs.The residue contained traces of some of the amino acids that make up proteins. Their presence suggested that the molecular precursors of life could form through a simple electrochemical process.【F3】The problem was that theoretical models and analyses of ancient rocks eventually convinced scienti
16、sts that Earths earliest atmosphere was not rich in hydrogen.Last year, after Millers death, two of his former graduate studentsgeochemists Jim Cleaves of the Carnegie Institution of Washington(CIW)in Washington, D. C. , and Jeffrey Bada of Indiana University, Bloomingtonwere examining samples left
17、in their mentors lab.【 F4】They discovered the bottles of products from the original experiment and decided to take a second look with updated technology. Using extremely sensitive mass spectrometers at NASAs Goddard Space Flight Center in Greenbelt, Maryland, Cleaves, Bada, and colleagues found trac
18、es of 22 amino acids in the experimental residues. That is about double the number originally reported by Miller and Urey and includes all of the 20 amino acids found in living things, the scientists report tomorrow in Science.So could lightning have helped jump-start life on Earth? Possibly, Cleave
19、s says. Although Earths primordial atmosphere was not hydrogen-rich, as were the chambers in the Miller-Urey experiment, gas clouds from volcanic eruptions did contain the right combination of molecules.【F5】It is possible that volcanoes, which were much more active early in Earths history, seeded ou
20、r planet with lifes ingredients. The big question is what happened nexthow did those molecules turn into self-replicating organic compounds? “Thats the frontier,“ Cleaves says, “and were sort of stuck there. “The new study “highlights how easy it is to make the building blocks of life in plausible p
21、eriodic conditions,“ says geochemist Robert Hazen of CIW, who was not involved in the research. At the same time, he says, the findings reinforce “the pioneering insight and experiments of Stanley Miller and Harold Urey. “6 【F1】7 【F2】8 【F3】9 【F4】10 【F5】10 【F1】 For more than a century, a few scientis
22、ts have occasionally daydreamed of transforming much of the Sahara desert green, with a lush inland sea or vast tracts of farmland. Now researchers say they have actually found a way to make such a scheme work with forests across the desertand to slow climate change in the process. The idea is the t
23、hought of Leonard Orn-stein, a cell biologist at the Mount Sinai School of Medicine, who partnered with climate modelers David Rind and Igor Aleinov of NASAs Goddard Institute for Space Studies, all in New York City. They envision desalinating(removing salt)seawater from the neighboring oceans and b
24、ringing it inland using aqueducts(a pipe that carries a water supply).and pumps. Drip irrigationplastic tubing to water the trees rootswould minimize the amount of water lost to evaporation and seepage into sandy soils, allowing trees to prosper in areas that are parched today.According to climate s
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- 考研 试卷 英语 阅读 模拟 163 答案 解析 DOC
