2015年职称英语理工类A级考试真题及答案汇总

[应聘英语面试自我介绍]My name is John Jones and I am an experienced problem solver for marketing departments. I know that you he an opening here in your West Coast Marketing Group， an...+阅读

答案

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1622：BACBABC

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4650：CDEFA

5165：BADCD CBDCB ABABA

真题

第1部分：词汇选项(第1～15题，每题1分，共15分)

1. I will not tolerate that sort of behior in my class.

A. control B. observe C. regulate D. accept

2. She showed a natural aptitude for the work.

A. sense B. talent C. flor D. taste

3. Most people find rejection hard to accept.

A. excuse B. client C. refusal D. destiny

4. The anization was bold enough to face the press.

A. pleased B. powerful C. bre D. sensible

5. They were locked in mortal bat.

A. deadly B. open C. actual D. active

6. We were attracted by the lure of quick money.

A. amount B. supply C. tempt D. sum

7. The procedures were perceived as plex and less transparent.

A. clear B. necessary C. special D. correct

8. The Stock Exchange is in turmoil following a huge we of selling.

A. Service B. danger C. disorder D. threat

9. He believes that Europe must change or it will perish.

A. survive B. last C. die D. move

10. There was a simultaneous trial taking place in the next build.

A. fair B. full C .coexisting D. public

11. They promote assimilation of ethnic groups into the main-stream culture.

A. policy B. value C .equality D. integration

12. A salesmans cardinal rule is to satisfy customers.

A. principal B. official C. simple D. legal

13. I must pliment you on your handling of a very difficult situation

A. silence B. praise C .assure D. plain

14. We lived for years in a perpetual state of fear

A. emotional B. nervous C. terrible D. Continuous

15. The starving children were a pathetic sight.

A. mon B. unexpected C. unfettable D. pitiful

第2部分：阅读判断(第16～22题，每题l分，共7分)

Lack of Oxygen Delayed the Rise of Animals on Earth

Scientists he long speculated as to why animal species didnt flourish sooner, once sufficient 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 a study published Oct. 31 in Science, Yale researcher Noah Plansky 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 he supported a diversity of creatures, no matter what geic advancements were poised to occur.

There is no question that geic and ecological innovation must ultimately be behind the rise of animals, but it is equally unoidable that animals need a certain level of oxygen, said Plansky, co-lead author of the research along with Christopher Reinhard of the Geia 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 United 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 pared their data with other samples taken from younger locales known to he 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, Plansky said. Chromium ge us the proxy. Previous estimates put the oxygen level at 40% of todays conditions during pre-animal times, leing 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 said, 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 plex life, and their relationships to the co-evolving environment, said co-author Tim Lyons of the University of California-Riverside. This could be a game changer.