2015年全国职称英语等级考试真题及答案(理工类A)(共24页).docx

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1、精选优质文档-倾情为你奉上2015职称英语理工类A真题及答案(完整版)第1部分：词汇选项(第115题，每题1分，共15分)下面每个句子中均有1个词或短语划有底横线，请为每处划线部分确定1个意义最为接近的选项。1. I will nottoleratethat sort of behavior in my class.A. control B. observe C. regulate D. accept2. She showed a naturalaptitudefor the work.A. sense B. talent C. flavor D. taste3. Most people fi

2、ndrejectionhard to accept.A. excuse B. client C. refusal D. destiny4. The organization wasboldenough to face the press.A. pleased B. powerful C. brave D. sensible5. They were locked inmortalcombat.A. deadly B. open C. actual D. active6. We were attracted by thelureof quick money.A. amount B. supply

3、C. tempt D. sum7. The procedures were perceived as complex and lesstransparent.A. clear B. necessary C. special D. correct8. The Stock Exchange is inturmoilfollowing a huge wave of selling.A. Service B. danger C. disorder D. threat9. He believes that Europe must change or it willperish.A. survive B.

4、 last C. die D. move10. There was asimultaneoustrial taking place in the next build.A. fair B. full C .coexisting D. public11. They promoteassimilationof ethnic groups into the main-stream culture.A. policy B. value C .equality D. integration12. A salesmanscardinalrule is to satisfy customers.A. pri

5、ncipal B. official C. simple D. legal13. I mustcomplimentyou on your handling of a very difficult situationA. silence B. praise C .assure D. complain14. We lived for years in aperpetualstate of fearA. emotional B. nervous C. terrible D. Continuous15. The starving children were apatheticsight.A. comm

6、on B. unexpected C. unforgettable D. pitiful第2部分：阅读判断(第1622题，每题l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。Lack of Oxygen Delayed the Rise of Animals on EarthScientists have long speculated as to why animal species didnt flourish sooner, once suffici

7、ent oxygen covered the Earths surface. Animals began to prosper at the end of the Proterozoic period, about 800 million years ago but what about the billion-year stretch before that, when most researchers think there also was plenty of oxygen?Well, it seems the air wasnt so great then, after all.In

8、a study published Oct. 31 in Science, Yale researcher Noah Planavsky and his colleagues found that oxygen levels during the “boring billion” period were only 0.1% of what they are today. In other words, Earths atmosphere couldnt have supported a diversity of creatures, no matter what genetic advance

9、ments were poised to occur.“There is no question that genetic and ecological innovation must ultimately be behind the rise of animals, but it is equally unavoidable that animals need a certain level of oxygen,” said Planavsky, co-lead author of the research along with Christopher Reinhard of the Geo

10、rgia Institute of Technology. “Were providing the first evidence that oxygen levels were low enough during this period to potentially prevent the rise of animals.”The scientists found their evidence by analyzing chromium (Cr) isotopes in ancient sediments from China, Australia, Canada, and the Unite

11、d States. Chromium is found in the Earths continental crust, and chromium oxidation is directly linked to the presence of free oxygen in the atmosphere.Specifically, the team studied samples deposited in shallow, iron-rich ocean areas, near the shore. They compared their data with other samples take

12、n from younger locales known to have higher levels of oxygen.Oxygens role in controlling the first appearance of animals has long vexed scientists. “We were missing the right approach until now,” Planavsky said. “Chromium gave us the proxy.” Previous estimates put the oxygen level at 40% of todays c

13、onditions during pre-animal times, leaving open the possibility that oxygen was already plentiful enough to support animal life.In the new study, the researchers acknowledged that oxygen levels were “highly dynamic” in the early atmosphere, with the potential for occasional spikes. However, they sai

14、d, “It seems clear that there is a first-order difference in the nature of Earth surface Cr cycling” before and after the rise of animals.“If we are right, our results will really change how people view the origins of animals and other complex life, and their relationships to the co-evolving environ

15、ment,” said co-author Tim Lyons of the University of California-Riverside. “This could be a game changer.”“Theres a lot of interest right now in a broader discussion surrounding the role that environmental stability played in the evolution of complex life, and we think our results are a significant

16、contribution to that,” Reinhard said.16. The study discovered the rise of animals occurred earlier than the Proterozoic period.A. Right B. Wrong C. Not mentioned17. Many researchers believe the oxygen level was high during pre-animal times.A. Right B. Wrong C. Not mentioned18. The team was funded by

17、 several research institutes.A. Right B. Wrong C. Not mentioned19. Genetic advancements triggered the rise of animals.A. Right B. Wrong C. Not mentioned20. The samples studied in the research were collected in ocean areas.A. Right B. Wrong C. Not mentioned21. The study revealed that chromium found i

18、n Earths continental crust remained stable before and after the rise of animals.A. Right B. Wrong C. Not mentioned22. Tim Lyons liked to play computer games in his spare time.A. Right B. Wrong 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25段每段选择1个最佳标题;(2)第2730题要

19、求从所给的6个选项中为每个句子确定1个最佳选项。First Image-recognition Software1. Dartmouth researchers and their colleagues have created an artificial intelligence software that uses photos to locate documents on the Internet with far greater accuracy than ever before.2. The new system, which was tested on photos and is

20、now being applied to videos, shows for the first time that a machine learning algorithm (运算法则) for image recognition and retrieval is accurate and efficient enough to improve large-scale document searches online. The system uses pixel (像素) data in images and potentially video rather than just text t

21、o locate documents. It learns to recognize the pixels associated with a search phrase by studying the results from text-based image search engines. The knowledge gleaned (收集) from those results can then be applied to other photos without tags or captions (图片说明), making for more accurate document sea

22、rch results.3. Over the last 30 years, says Associate Professor Lorenzo Torresani, a co-author of the study, the Web has evolved from a small collection of mostly text documents to a modern, massive, fast-growing multimedia data set, where nearly every page includes multiple pictures or videos. When

23、 a person looks at a Web page, he immediately gets the gist (主旨) of it by looking at the pictures in it. Yet, surprisingly, all existing popular search engines, such as Google or Bing, strip away the information contained in the photos and use exclusively the text of Web pages to perform the documen

24、t retrieval. Our study is the first to show that modern machine vision systems are accurate and efficient enough to make effective use of the information contained in image pixels to improve document search.4. The researchers designed and tested a machine vision system a type of artificial intellige

25、nce that allows computers to learn without being explicitly programmed that extracts semantic (语义的) information from the pixels of photos in Web pages. This information is used to enrich the description of the HTML page used by search engines for document retrieval. The researchers tested their appr

26、oach using more than 600 search queries (查询)on a database of 50 million Web pages. They selected the text-retrieval search engine with the best performance and modified it to make use of the additional semantic information extracted by their method from the pictures of the Web pages. They found that

27、 this produced a 30 percent improvement in precision over the original search engine purely based on text.23. Paragraph 1 _24. Paragraph 2 _25. Paragraph 3 _26. Paragraph 4 _A. Function of the new systemB. Improvement in document retrievalC. Publication of the new discoveryD. Problems of the existin

28、g search enginesE. Popularity of the new systemF. Artificial intelligence software created27. The new system does document retrieval by _.28. The new system is expected to improve precision in _.29. When performing document retrieval the existing search engines ignore _ _30. The new system was found

29、 more effective in document search than the _A. using photosB. description of the HTML pageC. current popular search enginesD. document searchE. information in imagesF. machine vision systems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。请根据短文内容，为每题确定1个最佳选项。第一篇 Face Masks May Not Protect from Super-Fl

30、uIF a super-flu strikes, face masks may not protect you. Whether widespread use of masks will help, or harm, during the next worldwide flu outbreak is a question that researchers are studying furiously. No results have come from their mask research yet. However, the government says people should con

31、sider wearing them in certain situations anyway, just in case.But its a question the public keeps asking while the government are making preparations for the next flu pandemic. So the Centers for Disease Control and Prevention (CDC) came up with preliminary guidelines. “We dont want people wearing t

32、hem everywhere,” said the CDC. “The overall recommendation really is to avoid exposure.”When thats not possible, the guidelines say to consider wearing a simple surgical mask if you are in one of the three following situations. First, youre healthy and cant avoid going to a crowded place. Second t y

33、oure sick and think you may have close contact with the healthy, such as a family member checking on you. Third, you live with someone whos sick and thus might be in the early stages of infection, but still need to go out.Influenza pandemics can strike when the easy-to-mutate flu virus shifts to a s

34、train that people never have experienced. Scientists cannot predict when the next pandemic will arrive, although concern is rising that the Asian bird flu might trigger one if it starts spreading easily from person to person.During the flu pandemic, you should protect yourself. Avoid crowds, and avo

35、id close contact with the sick unless you must care for someone. Why arent masks added to this self-protection list? Because they can help trap virus-laden droplets flying through the air with a cough or sneeze. Simple surgical masks only filter the larger droplets. Besides, the CDC is afraid masks

36、may create a false sense of security. Perhaps someone who should have stayed home would don an ill-fitting mask and hop on the subway instead.Nor does flu only spread through the air. Say someone covers a sneeze with his or her hand, then touches a doorknob or subway pole. If you touch that spot nex

37、t and then put germy hands on your nose or mouth, youve been exposed. Its harder to rub your nose while wearing a mask and so your face may get pretty sweaty under masks. You reach under to wipe that sweat, and may transfer germs caught on the outside of the mask straight to the nose. These are the

38、problems face masks may create for their users.Whether people should or should not use face masks still remains a question. The general public has to wait patiently for the results of the mask research scientists are still doing.31. What is the passage mainly about?A. Widespread use of face masks. B

39、. Possibility of a worldwide flu outbreakC. New discoveries of a face mask research. D. Effectiveness of wearing face masks32. The CDC suggests that peopleA. stay alone when being sick. B. wear face masks when going to a crowded place.C. wear face masks wherever possible. D. remain at home if living

40、 with someone whos sick.33. The word that in Paragraph 3 refers toA. making preparations. B. avoiding exposureC. coming up with guidelines. D. wearing face masks everywhere.34. Which of the following statements is true?A. Scientists warn the next flu is coming soon.B. Asian bird flu is spreading eas

41、ily from person to person.C. Masks protect people because they keep viruses away.D. Masks are not effective if a flu strikes.35. One of the concerns the CDC has is thatA .masks may give people a wrong assumption of being safe.B. the sick may not wear masks and go out.C. flu virus may spread via publ

42、ic transportation.D. healthy people may not know how to protect themselves.第二篇 Whats killing the BatsFirst it was bees. Now it is bats. Biologists in America are working hard to discover the cause of the mysterious deaths of tens of thousands of bats in the northeastern part of the country. Most of

43、the bats affected are the common little brown bats (Myotis lucifugus,) but other species, such as the long-eared bat, the small-footed hat, the eastern pipistrelle, and the Indiana bat have also been affected. In some caves, more than 90 percent of the bat populations have died.One possibility is di

44、sease. A white fungus (真菌)known as fusarium has been found on the noses of both living and dead bats. However, scientists dont know If the fungus is the primary cause of death, a secondary cause of death, or not a cause at all, but the result of some other conditions.Another possible cause is a lack

45、 of food. For example, bats typically eat a large number of moths (蛾), and in some states such as New York, the number of moths has been declining in recent years. If bats cant eat enough food, they starve to death.Still other scientists believe that global warming is to blame. Warmer temperatures i

46、n recent years have been waking up hibernating (冬眠)bats earlier than usual. If bats break their hibernation at the wrong time, they might not find their expected food sources. The weather might also turn cold again and weaken or kill the bats.Scientists might not agree on the causes of the bat die-o

47、ff, but they do agree on the consequences. Bats are an important predator of mosquitoes; a single brown bat can eat 1,000 or more insects in an hour. They also eat beetles and other insects that damage plant crops. If there arent enough bats, damage will be great from the insects they eat While bats

48、 live a long time for their size 一 the little brown bat can live for more than 30 years 一 a female bat has only one baby per year, so bat populations grow slowly. Many bat species in the United States are already protected or endangered.How can you help? Do not disturb sleeping or nesting bats. If you