2015年职称英语《理工类B级》真题及答案

1、精选优质文档-倾情为你奉上2015年职称英语理工类B级真题及答案第一部分：词汇选项1.The organization was bold enough to face the press.A.pleasedB.powerfulC.braveD.sensible2.I will not tolerate that sort of behavior in my class.A.acceptB.controlC.observeD.regulate3.I realized to my horror that I had forgotten the present.A.limitB.fearC.powe

2、rD.fool4.Most people find rejection hard to accept.A.excuseB.clientC.destinyD.refusal5.She's extremely competent and industrious.A.hardworkingB.honestC.objectiveD.independent6.The doctors did not reveal the truth to him.A.hideB.handleC.discloseD.establish7.He tried to assemble his thoughts.A.cle

3、arB.shareC.gatherD.spare8.The law carries a penalty of up to three years in prison.A.messageB.punishmentC.guiltD.obligation9.Prisoners were kept in the most appalling conditions.A.flexibleB.terribleC.reasonableD.serious10.These products are inferior to those we brought last year.A.poorer thanB.narro

4、wer thanC.larger thanD.richer than11.The political situation in the region has deteriorated rapidly.A.improvedB.changedC.worsenedD.developed12.There was a simultaneous trial taking place in the next building.A.coexistingB.fairC.fullD.pubic13.They're petitioning for better facilities for the disa

5、bled on public transport.A.requestingB.planningC.preparingD.looking14.He said some harsh words about his brother.A.unkindB.properC.normalD.unclear15.We were attracted by the lure of quick money.A.amountB.supplyC.sumD.temp第二部分：阅读判断ADHD Linked to Air PollutantsChildren have an increased of attention p

6、roblems, seen as early as grade school. If their noses inhaled(吸入)a certain type of air pollution when they were pregnant. That's the finding of a new study. Released when things aren't burned completely, this pollution is known as polycyclic aromatic hydrocarbons, or PAHs. The biggest sourc

7、es of these PAHs: the burning of fossil fuels, wood and trash.Frederica Perera works at Columbia University's Mailman School of Public Health is New York City. She researches how exposure to things in the environment affects children's health in a new study, she and her team studied the expo

8、sure to air pollution of 233 nonsmoking pregnant women in New York City. Because burning tobacco can spew(排放)PAHs into the air and lungs, Perera's team focused on nonsmokers. The researchers wanted to probe(探查)other sources of PAHs, ones that's would have been hard for an individual to avoid

9、.The team started by testing the blood of each woman during pregnancy. The reason Any PAHs in a woman's blood would also be available to the baby in her womb. Nine years later, the researchers investigated signs of attention problems in those children, now age 9. They asked each child's moth

10、er a series of questions. These included whatever her child had problems doing things that needed sustained(长期的)mental effort, such as homework or games with friends. The scientists also asked if the kids had trouble following instructions or made frequent, careless mistakes. All of these can be sym

11、ptoms of a disorder called Attention Deficit Hyperactivity Disorder, or ADHD. About one in U.S. children has ADHD.Among the women studied, traffic and home heating were the primary sources of air pollution exposure, Perera and her team suspect. Some of these women had low levels of PAHs in their blo

12、od. Ohters had high levels. Those with high levels were five times as likely to have children who showed attention problems by age 9. The new findings were published November 5 in the journal PLOS ONE.16.Perera and her team chose nonsmoking pregnant women all over America.A.RightB.WrongC.Not mention

13、ed17.The main purpose of the research was to find out how exposure to PAHs played a role in harming the subjects' physical health.A.RightB.WrongC.Not mentioned18.Nonsmoking mothers were selected because the effect of smoking on PAHs was unclear.A.RightB.WrongC.Not mentioned19.The blood of each w

14、oman was tested once a month during pregnancy.A.RightB.WrongC.Not mentioned20.Kids with ADHD commonly fail in school.A.RightB.WrongC.Not mentioned21.The women with high levels of PAHs in their blood were more likely to have kids with ADHD.A.RightB.WrongC.Not mentioned22.Traffic and home heating were

15、 considered to be the biggest sources of PAHs for the subjects in the research.A.RightB.WrongC.Not mentioned第3部分：概况大意与完成句子(第2330题，每题1分，共8分)下面的短文后有2项测试认识：(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。First Image-recognitions software1)Dartmouth researchers and their colleagues

16、 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, witch was tested on photos and is now being applied to videos, shows for the first time that a machine learning algorithm(运算法则)for image

17、 recognition and retrieval is accurate and efficienti enough to improve large-scale document searches online. The system uses pixel(像素)data in images and potentially videorather than just textto locate documents. It learns to recognize the pixels associatedwith a search phrase by studying the result

18、s 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 search results.3)“Over the last 30 years,” says Associate Professor Korenzo Torresani, a co-author of the study,”th

19、e web has evolved from a small collection of mostly text documents to a modern, massive, fast-growing multimedia datastet, where nearly every page includes multiple pictures of videos. When a person looks at a Web page, he immediately get the gist(主旨)of it by looking at the pictures in it. Yet, srup

20、risingly, all existing popular search engine, such as Google or Bing, strip away the information contained in the photos and use exclusively the text of Wed pages to perform the document retrieval. Our study is the first to show that modern machine vision systems are accurate and efficient enough to

21、 make effective use of the information contained in image pixels to improve document search.”4)The researchers designed and tested a machine vision systema type of artificialintelligence that allows computers to learn without being explicitly programmed that extracts semantic(语义的)information from pi

22、xels of photos in Web pages. This informationg is used to enrich the description of the HTML page used by search engines for document retrieval. The researchers tested their approach using more than 600 search queries(查询)on a database of 50 million Wed pages. They selected the text-retrieval search

23、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 tht this produced a 30 percent improvement in precision over the original search engine purely based on text.23.Paragraph 1 _24

24、.Paragraph 2 _25.Paragraph 3 _26.Paragraph 4 _A.Popularity of the new systemB.Publication of the new discoveryC.Function of the new systemD.Artificial intelligence software createdE.Problems of the existing search enginesF.Improvementi in document retrieval27.The new system does document retrieval b

25、y _.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 more effective in document search than the _.A.information in imagesB.current popular search enginesC.using photosD.machine vision system

26、sE.document searchF.description of the HTML page第四部分：阅读理解第一篇Why Buy Shade-Grown Coffee?When people argue about whether coffee is good for health, they're usually thinking of the health of the coffee drinker. Is it food for your heart? Does it increase blood pressure? Does it help you concentrate

27、? However, coffee affects the health of the human population in other ways, too.Traditionally, coffee bushes were planted under the canopy(树冠)of taller indigenous(土生土长的)trees. However, more and more farmers in Latin America are deforesting the land to grow full-sun coffees. At first, this increases

28、production because more coffee bushes can be planted if there arent any trees. With increased production come increased profits.Unfortunately, deforesting for coffee production immediately decreases local-wildlife habitat. Native birds nest and hide from predators(捕食者)in the tall trees and migrating

29、 birds rest there.Furthermore, in the long term, the full-sun method also damages the ecosystem because more chemical fertilizers and pesticides are needed to grow the coffee. The fertilizers and pesticides kill insects that eat coffee plant, but then the birds eat the poisoned insects and also die.

30、 The chemicals kill or sicken other animals as well, and can even enter the water that people will eventually drink.Fortunately, farmers in Central and South America are beginning to grow more coffee bushes in the shade. We can support these farmers by buying coffee with such labels as "shade g

31、rown" and "bird friendly." Sure, these varieties might cost a little more. But we're paying for the health of the birds, the land, ourselves, and the planet. I think it's worth it.31.What is the main idea of this passage? 文章的主旨是A.Farmers are changing the way they grow coffee.

32、农民正改变他们种咖啡的方式B.Coffee is becoming more expensive to produce. 种植咖啡越来越贵C.Shade-grow coffee is more expensive than sun-grow coffee. 蔽光生长的咖啡比向光生长的咖啡贵D.People should buy shade-grown coffee. 人们应该买蔽光生长的咖啡32.The function of the word "Traditionally" in Paragraph 2 is to show_. 段落2中的traditionally 作用

33、是来显示A.the positive effects of coffee. 咖啡的积极作用B.a change of coffee growth. 咖啡成长的变化C.something that is the most important. 最重要的事情D.how coffee production used to be. 咖啡生产过去如何33.What does increased production of full-sun coffee bring about?阳光充足的咖啡增加的产量带来什么?A.More insects.更多的昆虫B.Better quality coffee.质量更

34、好的咖啡C.Larger farms. 更大的农场D.Higher profits. 更高利润34.How do farmers find more land for growing full-sun coffee?农民如何找更多的土地来种植阳光充足的咖啡A.They buy more land from other farmers.B.They cut down trees.C.They move to another country.D.They turn grassland into farmland.35.The full-sun method may affect the follo

35、wing EXCEPT_ full sun 方式可能影响以下.A.insects.昆虫B.air.空气C.brids.鸟D.humans人类第二篇More Rural Research is NeededAgricultural research funding is vital if the world is to feed itself better than it does now. Dr. Tony Fischer, crop scientist, said demand was growing at 2.5% per year but with modern technologies

36、 and the development of new ones, the world should be able to stay ahead.“The global decline in investment in international agricultural research must be reversed if significant progress is to be made towards reducing malnutrition(营养不良)and poverty.” he said.Research is needed to solve food productio

37、n, land degradation(贫瘠化)and environmental problems. Secure local food supplies led to economic growth which is turn, slowed population growth. Dr. Fischer painted a picture of the worlds ability to feed itself in the first 25 years, when the worlds population is expected to rise from 5 X to X billio

38、n people. He said that things will probably hold or improve but therell still be a lot of hungry people. The biggest concentration of poor and hungry people would be in sub-Saharan Africa and southern Asia in 2020, similar to the currenti pattern. If there is any change, a slighe improvement will be

39、 seen in southern Asia, but not in sub-Saharan Africa. The major improvement will be in East Asia, South America and South-East Asia.The debeloping world was investing about 0.5%, or $8 billion a year, of its agricultural gross domestic product(GDP)on research and developed world was spending 2.5% o

40、f its GDP. Dr. Fischer said more was needed from all countries.He said crop research could produce technologies that spread across many countries, such as wheat production research having spin-offs(有用的副产品)for Mexico, China or India.“Technologies still need to be refined for the local conditions but

41、a lot of the strategic research can have global application, so that money can be used very efficiently.” Dr. Fischer said.Yields of rice, wheat ad maize(玉米)havegrown impressively in the past 30 years, especially in developing countries. For example, maize production rose from 2 to 8 tonnes per hect

42、are between 1950 and 1995. But technologies driving this growth such as high-yield varieties, fertilizers, and irrigation, were becoming exhausted. “If you want to save the land for non-agricultural activities, for forests and wildlife, youre going to have to increase yield.” Dr. Fischer said.36. Wh

43、at is the passage mainly about?A. Shortage of food supplies. 食物供应短缺B. Development of agricultural technologies. 农业技术的发展C. Impact of agricultural research.农业研究的影响D. Expectation of population growth. 人口增长的期望值37. Which of the following statements is true about the worlds agricultural research funding?

44、关于世界农业研究资金一下正确的是A. It is increasing among developed countries. 发达国家的正在增长B. It is decreasing worldwide. 全球都在下降C. Less is demanded from developing countries. 发展中国际比较不需要D. Most of it is spent very efficiently. 大部分都高效使用38. What is the picture of Asias food supplies in the first 25 years?在第一个25年中， 亚洲食物供应

45、的图景是什么A. Food shortage will not be a problem 食物短缺不再是问题B. There will be more hungry people in southern Asia. 在南亚会有更多饥饿的人C. Population growth will result in more hungry people. 人口增长会导致更多饥饿的人D. There will be fewer hungry people in East Asia. 东亚饥饿的人会减少39. What does Dr. Fischer say about technologies? Dr

46、 Fischer 关于技术说了什么A. They are costly. 他们贵B. They have to be improved to meet local needs. 必须提高来满足当地的需求C. Their application is limited. 应用很少D. They have to be applied locally.必须应用在当地40. It can be infered from the last paragraph that_.从最后一段可以推测出来A. there is a demand for saving land for non-agricultural

47、 activities. 有需要为非农业活动节省土地B. crop production is growing faster in developing countries. 在发展中国家，种植业发展更快C. maize production reached its peak in the 1990s. 玉米产量在1990年代达到最高For example, maize production rose from 2 to 8 tonnes per hectare between 1950 and 1995 只是说上升了 并没有说达到最高 错误D. technologies improving

48、maize production have been well developed. 提高玉米产量的技术已经很好的发展第三篇Dangers await babies with altitudeWomen who live in the world's highest communities tend to give birth to under-weight babies, a new study suggests. These babies may grow into adults with a high risk of heart disease and strokes.Resea

49、rch has hinted that newborns in mountain communities are lighter than average. But it wasn't clear whether this is due to reduced oxygen levels at high altitude or because their mothers are under-nourished many people who live at high altitudes are relatively poor compared with those living lowe

50、r down.To find out more, Dino Giussani and his team at Cambridge University studied the records of 400 births in Bolivia during 1976 and 1998. The babies were born in both rich and poor areas of two cities: La Paz and Santa Cruz. L Paz is the highest city in the world, at 3.65 kilometers above sea l

51、evel, while Santa Cruz is much lower, at 0.44 kilometers.Sure enough, Giussani found that the average birthweight of babies in La Paz was significantly lower than in Santa Cruz. This was true in both high and low-income families. Even babies born to poor families in Santa Cruz were heavier on averag

52、e than babies born to wealthy families in lofty La Paz. "We were very surprised by this result," says Giussani.The results suggest that babies born at high altitude are deprived of oxygen before birth. "This may trigger the release or suppression of hormones that regulate growth of th

53、e unborn child," says Giussani.His team also found that high-altitude babies tended to have relatively larger heads compared with their bodies. This is probably because a fetus starved of oxygen will send oxygenated blood to the brain in preference to rest of the body.Giussani wants to find out

54、 if such babies have a higher risk of disease in later life. People born in La Paz might be prone to heart trouble in adulthood, for example. Low birthweight is a risk factor for coronary(冠状的) heart disease. And newborns with a high ratio of head size to body weight are often predisposed to high blo

55、od pressure and strokes in later life.41. What does the new study discover?A. Babies born to wealthy families are heaver.B. Women living at high altitude tend to give birth to underweight babies.C. Newborns in cities are lighter than average.D. Low-altitude babies have a high risk of heart disease i

56、n later life.42. Giussani and his team are sure that _.A. babies born in Lance Paz are on average lighter than in Santa Cruz.B. people living at high altitudes tend to give birth to underweight babies.C. the birthweight of babies born to wealthy families is Santa Cruz.D. mothers in La Paz are common

57、ly under-nourished.43. It can be inferred from what Giussani says in Paragraph 4 that_.A. the finding was unexpectedB. he was very tired.C. the study took longer than expected.D. he was surprised to find low-income families in La Paz.44. The results of the study indicate the reason for the underweight babies is _.A. lack of certain nutrition.B. pow