2011-2015年职称英语考试理工类a级试题及答案

上传人:luoxia****01808 文档编号:46063328 上传时间:2018-06-21 格式:DOC 页数:45 大小:349KB
返回 下载 相关 举报
2011-2015年职称英语考试理工类a级试题及答案_第1页
第1页 / 共45页
2011-2015年职称英语考试理工类a级试题及答案_第2页
第2页 / 共45页
2011-2015年职称英语考试理工类a级试题及答案_第3页
第3页 / 共45页
2011-2015年职称英语考试理工类a级试题及答案_第4页
第4页 / 共45页
2011-2015年职称英语考试理工类a级试题及答案_第5页
第5页 / 共45页
点击查看更多>>
资源描述

《2011-2015年职称英语考试理工类a级试题及答案》由会员分享,可在线阅读,更多相关《2011-2015年职称英语考试理工类a级试题及答案(45页珍藏版)》请在金锄头文库上搜索。

1、2015 年职称英语考试理工类年职称英语考试理工类 A 级试题级试题第第 1 部分:词汇选项部分: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 not tolerate that sort of behavior 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. fla

2、vor D. taste 3. Most people find rejection hard to accept. A. excuse B. client C. refusal D. destiny 4. The organization was bold enough to face the press. A. pleased B. powerful C. brave D. sensible 5. They were locked in mortal combat. A. deadly B. open C. actual D. active 6. We were attracted by

3、the lure of quick money. A. amount B. supply C. tempt D. sum 7. The procedures were perceived as complex and less transparent. A. clear B. necessary C. special D. correct 8. The Stock Exchange is in turmoil following a huge wave of selling. A. Service B. danger C. disorder D. threat 9. He believes t

4、hat 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. integr

5、ation 12. A salesmans cardinal rule is to satisfy customers. A. principal B. official C. simple D. legal 13. I must compliment you on your handling of a very difficult situation A. silence B. praise C .assure D. complain 14. We lived for years in a perpetual state of fear A. emotional B. nervous C.

6、terrible D. Continuous 15. The starving children were a pathetic sight. A. common B. unexpected C. unforgettable D. pitiful第第 2 部分:阅读判断部分: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 Anim

7、als on Earth Scientists have 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 re

8、searchers 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 Planavsky and his colleagues found that oxygen levels during the “boring billion” period were only 0.1% of what they are today. In oth

9、er words, Earths atmosphere couldnt have supported a diversity of creatures, no matter what genetic advancements 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

10、level of oxygen,” said Planavsky, co-lead author of the research along with Christopher Reinhard of the Georgia 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 ev

11、idence 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

12、deposited in shallow, iron-rich ocean areas, near the shore. They compared their data with other samples taken 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

13、now,” Planavsky said. “Chromium gave us the proxy.” Previous estimates put the oxygen level at 40% of todays conditions 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 le

14、vels 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

15、how people view the origins of animals and other complex 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.” “Theres a lot of interest right now in a broader discussion surrounding the role

16、 that environmental stability played in the evolution of complex life, and we think our results are a significant 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 mentioned 17. Many researchers believe the oxygen leve

展开阅读全文
相关资源
相关搜索

当前位置:首页 > 中学教育 > 教学课件 > 初中课件

电脑版 |金锄头文库版权所有
经营许可证:蜀ICP备13022795号 | 川公网安备 51140202000112号