[考研类试卷]考研英语(翻译)模拟试卷85及答案与解析.doc
《[考研类试卷]考研英语(翻译)模拟试卷85及答案与解析.doc》由会员分享,可在线阅读,更多相关《[考研类试卷]考研英语(翻译)模拟试卷85及答案与解析.doc(9页珍藏版)》请在麦多课文档分享上搜索。
1、考研英语(翻译)模拟试卷 85 及答案与解析Part CDirections: Read the following text carefully and then translate the underlined segments into Chinese. (10 points) 0 At the moment, there are two reliable ways to make electricity from sunlight.【F1】You can use a panel of solar cells to create the current directly, by libe
2、rating electrons from a semiconducting material such as silicon. Or you can concentrate the suns rays using mirrors, boil water with them, and employ the steam to drive a generator.Both work. But both are expensive. Gang Chen of the Massachusetts Institute of Technology and Zhifeng Ren of Boston Col
3、lege therefore propose, in a paper in Nature Materials, an alternative. They suggest that a phenomenon called the thermoelectric effect might be used insteadand they have built a prototype to show that the idea is practical.In their view, three things are needed to create a workable solar-thermoelec
4、tric device. The first is to make sure that most of the sunlight which falls on it is absorbed, rather than being reflected. The second is to choose a thermoelectric material which conducts heat badly(so that different parts remain at different temperatures)but electricity well.【F2】The third is to b
5、e certain that the temperature gradient which that badly conducting material creates is not frittered away by poor design.The two researchers overcame these challenges through clever engineering. The first they dealt with by coating the top of the device with oxides of hafnium, molybdenum and titani
6、um, in layers about 100 nanometres thick.【F3】These layers acted like the anti-reflective coatings on spectacle lenses and caused almost all the sunlight falling on the device to be absorbed.The second desideratum, of low thermal and high electrical conductivity, was achieved by dividing the bismuth
7、telluride into pellets a few nanometres across.【F4 】That does not affect their electrical conductivity, but nanoscale particles like this are known to scatter and obstruct the passage of heat through imperfectly understood quantum-mechanical processes.The third objective, efficient design, involved
8、sandwiching the nanostructured bismuth telluride between two copper plates and then enclosing the upper plate(the one coated with the light-absorbing oxides)and the bismuth telluride in a vacuum. The copper plates conducted heat rapidly to and from the bismuth telluride, thus maintaining the tempera
9、ture difference. The vacuum stopped the apparatus losing heat by convection. The upshot was a device that converts 4.6% of incident sunlight into electricity.【F5 】That is not great compared with the 20% and more achieved by a silicon-based solar cell, the 40% managed by a solar-thermal turbine, or e
10、ven the 18-20% of one of the new generation of cheap and cheerful thin-film solar cells. But it is enough, Dr Chen reckons, for the process to be worth considering for mass production.1 【F1】2 【F2】3 【F3】4 【F4】5 【F5】5 No Nobel prize has yet been awarded for the invention of an elixir of life, but the
11、prize itself seems to be one. That, at least, is the conclusion of Matthew Rablen and Andrew Oswald of the University of Warwick, in England【F1】Dr. Rablen and Dr. Oswald have just published a study on the universitys working-paper site which concludes that Nobel science laureates live significantly
12、longer than those of their colleagues who were nominated for a prize, but failed to receive one.The theory they were testing was that status per se rather than the trappings of status, such as wealth, act to prolong life. This idea was first promulgated by Sir Michael Marmot, of University College,
13、London. 【F2】Sir Michael studied the health of British civil servants and discovered, contrary to his and everyone elses expectations, that those at the top of the hierarchywhom the stress of the job was expected to have affected adverselywere actually far healthier than the supposedly unstressed off
14、icials at the bottom of the heap.Subsequent research has confirmed this result, and suggested it is nothing to do with the larger salaries of those at the top. But Dr. Rablen and Dr. Oswald thought it would be interesting to refine the observation still further, by studying individuals who were all,
15、 in a sense, at the top. By comparing people good enough to be considered for a Nobel, they could measure what the status of having one was worth.【F3】Comparing winners and also-rans from within the same countries, to avoid yet another source of bias, Dr. Rablen and Dr. Oswald found that the winners
16、lived, on average, two years longer than those who had merely been nominated. Exactly what causes this increased longevity is unclear. It is not the cash, though. The inflation-adjusted value of the prize has fluctuated over the years, so the two researchers were able to see if the purchasing power
17、of the money was correlated with longevity. It was not.【F4】With the hierarchically ordered individuals studied by Sir Michael and his successors, both medical records and experiments on animals suggest stress hormones are involved.It is, indeed, more stressful to be at the bottom than the top, even
18、if being at the top involves making decisions on the fate of nations.【F5】The result Dr. Rablen and Dr. Oswald have come up with, though, suggests a positive effect associated with high status, rather than the absence of a negative effect, since unsuccessful nominees never know that they have been no
19、minated.6 【F1】7 【F2】8 【F3】9 【F4】10 【F5】10 “Flexibility“ has become a key metaphor potently vivifying a variety of contemporary life discourses.【F1】As capital becomes more globalized and national economies increasingly integrated on a global basis, flexibility becomes both a key goal in, and a means
20、of, maintaining and increasing economic competitiveness. Organizations are expected to respond flexibly and rapidly to market changes and a premium is now placed on the need for flexibility not only within workplaces but also between them. Within this context are located interlinking discourses of f
- 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 翻译 模拟 85 答案 解析 DOC
