职称英语历年真题理工类B级.docx

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1、2013年职称英语理工类B级真题及答案（京华网校提供）第1部分：词汇选项（第115题，每题1分，共15分）下面每个句子中均由1个词或短语划有底横线，请为每处划线部分确定1个意思最接近的选项。1.Rumors began to circulate about his financial problems.A send B hearC confirm D spread2.The contract between the two companies will expire soon.A shorten B endC start D resume3.Come out，or Ill bust the d

2、oor down.A shut B breakC set D beat4.She gets aggressive when she is drunk.A offensive B worriedC sleepy D anxious5.As a politician，he knows how to manipulate public opinion.A express B divideC influence D voice6.She came across three children sleeping under a bridge.A found by chance B passed byC t

3、ook a notice of D woke up7.I have little information as regards her fitness for the post.A about B atC with D from8.He paused，waiting for her to digest the information.A withhold B exchangeC understand D contact9.Make sure the table is securely anchored.A repaired B clearedC booked D fixed10.There w

4、as something peculiar in the way he smiles.A different B strangeC wrong D funny11.These animals migrate south annually in search of food.A explore B inhabitC prefer D travel12.It seemed incredible that he had been there a week already.A right B unbelievableC obvious D unclear13.The police will need

5、to keep a wary eye on this area of town.A naked B blindC cautious D private14. He was tempted by the high salary offered by the company.A taught B keptC changed D attracted15.The rules are too rigid to allow for human error.A general B inflexibleC complex D direct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

6、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；如果该句的信息在文章中没有提及，请选择C。Wide World of RobotsEngineers who build and program robots have fascinating jobs. These researchers tinker（修补）with machines in the lab and write computer software to control these devices. “Theyre the best toys out there，

7、”says Howle Choset at Carnegie Mellon University in Pittsburgh. Choset is a roboticist，a person who designs，builds or programs robots.When Choset was a kid，he was interested in anything that movedcars，trains，animals. He put motors on Tinkertoy cars to make them move. Later，in high school，he built mo

8、bile robots similar to small cars.Hoping to continue working on robots，he studied computer science in college. But when he got to graduate school at the California Institute of Technology in Pasadena，Chosets labmates were working on something even cooler than remotely controlled cars：robotic snakes.

9、 Some robots can move only forward，backward，left and right. But snakes can twist（扭曲）in many directions and travel over a lot of different types of terrain（地形）. “Snakes are far more interesting than the cars，”Choset concluded.After he started working at Carnegie Mellon，Choset and his colleagues there

10、 bagan developing their own snake robots. Chosets team programmed robots to perform the same movements as real snakes，such as sliding and inching forward. The robots also moved in ways that snakes usually dont，such as rolling. Chosets snake robots could crawl（爬行）through the grass，swim in a pond and

11、even climb a flagpole.But Choset wondered if his snakes might be useful for medicine as well. For some heart surgeries，the doctor has to open a patients chest，cutting through the breastbone. Recovering from these surgeries can be very painful. What if the doctor could perform the operation by instea

12、d making a small hole in the body and sending in a thin robotic snake？Choset teamed up with Marco Zenati，a heart surgeon now at Harvard Medical School，to investigate the idea. Zenati practiced using the robot on a plastic model of the chest and they tested the robot in pigs.A company called Medrobot

13、ics in Boston is now adapting the technology to surgeries on people.Even after 15 years of working with his teams creations, I still dont get bored of watching the motion of my robots, Choset says.16.Choset began to build robots in high school.A Right B Wrong C Not mentioned17.Snake robots could mov

14、e in only four directions.A Right B Wrong C Not mentioned18.Choset didnt begin developing his own snake robots until he started working Carnegie Mellon.A Right B Wrong C Not mentioned19.Chosets snake robots could make more movements than the ones others developed.A Right B Wrong C Not mentioned20.Th

15、e application of a thin robotic snake makes heart surgeries less time-consuming.A Right B Wrong C Not mentioned21.Zenati tested the robot on people after using it in pigs.A Right B Wrong C Not mentioned22.The robotic technology for surgeries on people has brought a handsome Medrobotics.A Right B Wro

16、ng C Not mentioned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14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。Black Holes1 Black holes can be best described as a sort of vacuum，sucking up everything in space. Scientists have discovered that black holes come from an explosion o

17、f huge stars. Stars that are near death can no longer burn due to loss of fuel，and because its temperature can no longer control the gravitational（重力的）force，hydrogen ends up putting pressure onto the stars surface until it suddenly explodes then collapses.2 Black holes come from stars that are made

18、of hydrogen，other gases and a few metals. When these explode it can turn into a stellar-mass（恒星质量）black hole，which can only occur if the star is large enough（should be bigger than the sun）for the explosion to break it into pieces，and the gravity starts to compact every pieceinto the tiniest particie

19、. Try to see and compare：if a star thats ten times the size of the sun end up being a black hole thats no longer than 70 kilometers，then the Earth would become black hole thats only a fraction of an inch！3 Objects that get sucked in a black hole will always remain there，never to break free. But reme

20、mber that black holes can only gobble up（吞噬）objects within a specific distance to it. Its possible for a large star near the sun to become a black hole，but the sun will continue to stay in place. Orbits（轨道）do not change because the newly formed black hole contains exactly the same amount of mass as

21、when it was a star，only this its mass is totally contracted that it can end up as no bigger than a state.4 So far，astronomers have figured out that black holes exist because of Albert Einsteins theory of relativity. In the end，through numerous studies，they have discovered that black holes truly exis

22、t. Since black holes trap light and do not give off light，it is not possible to detect black holes via a telescope. But astronomers continue to explore galaxies（银河系），space and the solar system to understand how black holes. It is possible that black holes can exist for millions of years，and later co

23、ntribute further process in galaxies，which can eventually lead to creation of new entities. Scientists also credit black holes as helpful in learning how galaxies began to form.第4部分：阅读理解（第3145题，每题3分，共45分）下面有3篇短文，每篇短文后有5道题。第一篇 Putting Plants to WorkUsing the power of the sun is nothing new. People ha

24、ve had solar-powered calculators and buildings with solar panels（太阳能电池板）for decades. But plants are the real experts. Theyve been using sunlight as an energy source for billions of years.Cells in the green leaves of plants work like tiny factories to convert sunlight，carbon dioxide（二氧化碳），and water i

25、nto sugars and starches（淀粉），stored energy that the plants can use. This conversion process is called photosynthesis（光合作用）. Unfortunately，unless youre a plant，its difficult and expensive to convert sunlight into storable energy. Thats why scientists are taking a closer look at exactly how plants do i

26、t.Some scientists are trying to get plants，or biological cells that act like plants，to work as very small photosynthesis power stations. For example，Maria Ghirardi of the National Renewable Energy Laboratory in Golden. Colo.，is working with green algae（水藻）. Shes trying to trick them into producing h

27、ydrogen instead of sugars when they perform photosynthesis. Once the researchers can get the algae working efficiently，the hydrogen that they produce could be used to power fuel cells in cars or to generate electricity.The algae are grown in narrow-necked glass bottles to produce hydrogen in the lab

28、. During photosynthesis，plants normally make sugars or starches.“But under certain conditions，a lot of algae are able to use the sunlight energy not to store starch，but to make hydrogen.”Ghirardi says. For example，algae will produce hydrogen in an airfree environment. Its the oxygen in the air that

29、prevents algae from making hydrogen most of the time.Working in an airfree environment，however，is difficult. Its not a practical way to produce cheap energy. But Ghirardi and her colleagues have discovered that by removing a chemical called sulfate（硫酸盐）from the environment that the algae grow in，the

30、y will make hydrogen instead of sugars，even when air is present.Unfortunately, removing the sulfate also makes the algaes cells work very slowly, and not much hydrogen is produced. Still, the researchers see this as a first step in their goal to produce hydrogen efficiently from algae. With more wor

31、k, they may be able to speed the cells activity and produce larger quantities of hydrogen.The researchers hope that algae will one day be an easy-to-use fuel source. The organisms are cheap to get and to feed, Ghirardi says, and they can grow almost anywhere： “You can grow them in a reactor, in a po

32、nd. You can grow them in the ocean. Theres a lot of flexibility in how you can use these organisms.”31. How do plants relate to solar energy？ A They have been using it for billions of years. B They are the real experts in producing it. C They have been a source of it. D They have been used to produc

33、e it.32. Scientists study how photosynthesis works because they want to A improve the efficiency of it. B turn plant sugars to a new form of energy. C get more sugars and starches from plants. D make green plants a new source of energy.33. Algae are able to use solar energy to produce hydrogen when

34、A they are grown in narrow-necked bottles. B there is no oxygen in the air. C there is nenough oxygen in the air. D enough starches is stored.34. Researchers find it difficult to make algae produce hydrogen efficiently because A it is hard to create an airfree environment. B it is expensive to remov

35、e the sulfate from the environment. C removing the sulfate slows down hydrogen production. D the algaes cells work slowly if there is no oxygen in the air.35. What does Ghirardi say about algae？ A They can be a good energy source. B They grow faster in a reactor. C They will be planted everywhere. D

36、 They are cheap to eat.第二篇 Energy and Public LandsThe United States boasts substantial energy resources. Federal lands provide a good deal of US energy production，the US Department of the Interior manages federal energy leasing（租赁）both on land and on the offshore Outer Continental Shelf Production f

37、rom these sources amounts to nearly 30 percent of total annual US energy production.In 2000，32 percent of US oil，35 percent of natural gas，and 37 percent of coal were produced from federal lands，representing 20,000 producing oil and gas leases and 135 producing coal leases. Federal lands are also es

38、timated to contain approximately 68 percent of all undiscovered US oil reserves and 74 percent of undiscovered natural gas.Revenues from federal oil，gas，and coal leasing provide significant returns to US taxpayers as well as State Government. In 1999，for example，$553 million in oil and gas revenues

39、were paid to the US Treasury，and non-India coal leases accounted for over $304 million in revenues，of which 50 percent were paid to State governments. Public lands also play a critical role in energy delivery. Each year，federal land managers authorize rights of way for transmission lines，rail system

40、s，pipelines，and other facilities related to energy production and use.Alternative energy production from federal lands falls behind conventional energy production，though the amount is still significant. For example，federal geothermal（地热）resources produce about 7.5 billion kilowatt-hours（千瓦时）of elect

41、ricity per year，47 percent of all electricity generated from US geothermal energy. There are 2,960 wind turbines on public lands in California alone，producing electricity for about 300,000 people. Federal hydropower facilities produce about 17 percent of all hydropower produced in the United States.

42、Because of the growing US thirst for energy and increasing public unease with influence on foreign off sources，pressure on public lands to meet US energy demand is becoming more intense. Public lands are available for energy development only after they have been evaluated through the land use planni

43、ng process. If development of energy resources conflicts with management or use of other resources，development restrictions or impact moderation measures may be enforced，or mineral be banned altogether.36. What is the main idea of this passage？ A Public lands play an important role in energy product

44、ion. B Public lands are one of the main sources of revenues. C Public lands should be developed to ease energy shortage. D Public lands store huge energy resources for further development.37. Which of the following statements is true of public lands in the U.S.？ A Half of US energy is produced there

45、. B The majority of undiscovered natural gas is stored there. C Most of coal was produced from there in 2000.D Most energy resources are reserved there.38. Geothermal resources，wind turbines，and hydropower facilities in Paragraph 4 cited as examples to illustrate that A alternative energy production is no less than conventional energy production. B the amount of alternative energy production from public la