全国职称英语理工类BWord文档下载推荐.docx

1、D.great 3.He was rather vague about the reasons why he never finished school. A.bright B.unclear C.general D.bad 4.I want to provide my boys with a decent education. A.special B.private D.good 5.Sleep stairs can present a particular hazard to older people. A.picture B.danger C.evidence D.case 6.Our

2、arrangements were thrown into complete turmoil. A.doubt B.relief C.failure D.confusion 7.Patricia stared at the other girls with resentment. A.love B.surprise C.anger D.doubt 8.Your dog needs at least 20 minutes of vigorous exercise every day. A.energetic B.free C.physical D.regular 9.I enjoyed the

3、play-it had a clever plot and very funny dialogues. A.boring B.original C.humorous D.long 10.Lower taxes would spur investment and help economic growth. A.attract B.spend C.encourage D.require 11.He demolished my argument in minutes. A.supported B.disproved C.disputed D.accepted 12.The two banks hav

4、e announced plans to merge next year. A.close B.sell C.break D.combine 13.Her father was a quiet man with graceful manners. A.polite B.usual C.bad D.similar 14.The project required ten years of diligent research. A.hardworking B.social C.basic D.scientific 15.He was kept in appalling conditions in p

5、rison. A.necessary B.terrible C.critical D.normal 第2部分：阅读判断（第1622题，每题1分，共7分） 下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C. California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality，now that California has g

6、iven the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt （兆瓦）of power beamed down from solar-power satellites beginning in 2016.But some major chal lenges will have to be overcomed if the technology is to be used widely. A start-up company called Sola

7、ren is designing the satellites，which it says will use radio waves to beam energy down to a receiving station on Earth. The attraction of collecting solar power in space is the almost uninterrupted sunshine available in eosynchronous（与地球同步的）orbit.Earth-based solar cells，by contrast，can only collect

8、sun. Light during daytime and when skies are clear. But space-based solar power must grapple（努力克服）with the high cost per kilogram of launching things into space，says Richard Schwartz of Purdue University in West Lafayette，Indiana， If youre talking about it being economically viable or power of the E

9、arth，its a tough go.he says. Cal Boerman，Solarens director of energy services，says the company designed its satellites with a view to keeping launch costs down.We knew we had to come up with a different，revolu-tionary design，he says.A patent the company has won describes ways to reduce the systemSwe

10、ight，including using inflatable minors to focus sunlight on solar cells，so a smaller number cancollect the same amount of energy. But using minors introduces other chaHenges，including keeping the solar cells from overhea-ting，says Schwartz.You have to take care of heat dissipation（散发）because youre n

11、ow concen-trating a lot of energy in one place，he says.According to the companys patent，Solarens solarcells will be connected to radiators to help keep them cool. Though Boerman says the company believes it can make space-based solar power work，it is notexpecting to crowd out other forms of renewabl

12、e energy.Laws in California and other states requireincreasing use of renewable energy in coming years，he points out.To meet those needs，were go-ing to need all types of renewable energy sources，16.Solar-power satellites will use radio waves to beam energy down from space. A.Right B.Wrong C.Not ment

13、ioned 17.Solaren is going to design 200 solar-power satellites. 18.Space-based solar cells could collect solar power only when skies are clear. 19.One advantage of space-based solar power system is that it is economical. 20.Inflatable minors are used to reduce the space-based solar power system. 21.

14、Space-based solar power will rule out other forms of renewable energy sources. 22.Many countries will grant permission for the use of spaced-based solar power soon. 第3部分：概括大意与完成句子（第2330题，每题1分，共8分） 下面的短文后有2项测试任务： （1）第2326题要求从所给的6个选项中为第2-5段每段选择1个最佳标题；（2）第2730题要求从所给的6个选项中为每个句子确定1个最佳选项。Natural Gas 1 Nat

15、ural gas is produced from reservoirs deep beneath the earths surface.It is a fossil fuel （矿物质燃料），meaning that it is derived from organic material buried in the earth millions of yearsago.The main component of natural gas is methane（甲烷）。2 The popularity and use of clean natural gas has increased dram

16、atically over the past 50 years as pipeline infrastructure（基础设施）has been installed to deliver it conveniently and economically to millions of residential，commercial and industrial customers worldwide.Today，natural gas serviceis available in all 50 states in the U.S.，and is the leading energy choice

17、for fueling Americanhomes and idustries.More than 65 million American homes use natural gas.In fact，natural gas isthe most economical source for home energy needs，costing one-third as much as electricity.In addi-tion to heating homes，much of the gas used in the United States is used as a raw materia

18、l to manu-facture a wide variety of products，from paint，to fibers for clothing，to plastics for heahhcare，con-puting and furnishings.Natural gas is also used in a significant number of new electricity-generating power plants. 3 Natural gas is one of the safest and cleanest fuels available.It emits le

19、ss pollution than oth-er fossil fuel sources.When natural gas is burned，it produces mostly carbon dioxide（二氧化碳） and water vapor-the same substances emitted when humans exhale.Compared with some other fos-sil fuels，natural gas emits the least amount of carbon dioxide into the air when combusted（燃烧），

20、making natural gas the cleanest burning fossil fuel of a11. 4 The United States consumes about one-third of the worldS natural gas output，making it the largest gas-consuming region in the world.The U.S.Department of EnergyS Energy Information Ad-ministration forecasts that natural gas demand will gr

21、ow by more than 50 percent by 2025. 5 There are huge reserves of natural gas beneath the earths surface.The largest reserves of natural gas can be found in Russia，West and North Africa and the Middle East.LNG（液化天然气）has been produced domestically and imported in the United States for more than four d

22、ecades. Today，the leading importes of LNG are Japan，Korea，France and Spain. 23.Paragraph 2_. 24.Paragraph 3_. 25.Paragraph 4_. 26.Paragraph 5_. A.Popularity and use of natural gas B.Natural gas reserves and supply C.Natural gas prices D.Clean fuel of choice E.Disadvantages of natural gas F.Natural g

23、as consumption 27.Natural gas is stored deep_. 28.Natural gas is recognized as the most economical energy source_. 29.When manufacturing many products，people commonly use natural gas_. 30.It is estimated that by 2025 that natural gas demand in the United States will increase_. A.over the past 50 yea

24、rs B.beneath the earth surface C.by more than 50 percent D.for more than four decades E.as a raw material F.for home energy needs 第4部分：阅读理解（第3l45题，每题3分，共45分） 下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。第一篇 How the First Stars in the Universe Came into Existence How the first stars formed from this dust an

25、d gas has been a burning question for years，but a state-of-the-art computer simulation now offers the most detailed picture yet of how these first stars in the universe came into existence，researchers say. The composition of the early universe was quite different from that of today，and the physics t

26、hat governed the early universe were also somewhat simpler.Dr.Naoki Yoshida and colleagues in Japan and the U.S.incorporated these conditions of the early universe，sometimes referred to as the cosmic dark ages，to simulate the formation of an astronomical object that would eventually shine its light

27、into this darkness. The result is a detailed description of the formation of a protostar-the early stage of a massive primordial star of our universe，and the researcherscomputer simulation，which has been called a cosmic Rosetta Stone.sets the bar for further investigation into the star formation pro

28、cess.The question of how the first stars evolved is so important because their formations and eventual explo-sions provided the seeds for subsequent stars to come into being. According to their simulation，gravity acted on minute density variations in matter，gases，and the mysteriousdark matterof the

29、universe after the Big Bang in order to form this early stage of a star-a protostar with a mass of just one percent of our sun.The simulation reveals how pre-stellar gases would have actually evolved under the simpler physics of the early universe to form this protostar. Dr.Yoshidas simulation also shows that the p