2016年職稱英語考試將於3月26日舉行，為了各位考生可以更好地備戰職稱英語考試，下面YJBYS小編為大家帶來2015職稱英語理工類A級考試真題（含答案），供大家參考學習，預祝考生備考成功!
第1部分：詞彙選項(第1——15題，每題1分，共15分)
下面每個句子中均有1個詞或短語劃有底橫線，請為每處劃線部分確定1個意義最為接近的選項。
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. flavor 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 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 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 isting D. public
11. They promote assimilation of ethnic groups into the main-stream culture.
A. policy B. value C lity D. integration
12. A salesman’s 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 re D. complain
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. common B. unexpected C. unforgettable D. pitiful
第2部分：閱讀判斷(第16〜22題，每題1分，共7分)
下面的'短文後列出了 7個句子，請根據短文的內容對每個句子做出判斷;如果該句提供的是 正確資訊，請選擇A;如果該句提供的是錯誤資訊，請選擇B;如果該句的資訊文中沒有提及，請 選擇C。
Lack of Oxygen Delayed the Rise of Animals on Earth
Scientists have long speculated as to why animal species didn’t flourish sooner, once sufficient oxygen covered the Earth’s surface. Animals began to prosper at the end of the Proterozoic period, about 800 million years ago 一 but what about the billion-year stretch before that, when most researchers think there also was plenty of oxygen?
Well, it seems the air wasn’t 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 other words, Earth’s atmosphere couldn’t 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 level of oxygen，’，said Planavsky, co-lead author of the research along with Christopher Reinhard of the Georgia Institute of Technology. “We’re 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 Earth，s 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 taken from younger locales known to have higher levels of oxygen.
Oxygen’s 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 today’s 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 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 complex life, and their relationships to the co-evolving environment，，，said co-author Tim Lyons of the University of Califomia-Riverside. “This could be a game changer.”
“There’s 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 contribution to that，，’ Reinhard said.
study discovered the rise of animals occurred earlier than the Proterozoic period.
A. Right B. Wrong C. Not mentioned
researchers believe the oxygen level was high during pre-animal times.
A. Right B. Wrong C. Not mentioned
team was funded by several research institutes.
A. Right B. Wrong C. Not mentioned
tic advancements triggered the rise of animals.
A. Right B. Wrong C. Not mentioned
samples studied in the research were collected in ocean areas.
A. Right B. Wrong C. Not mentioned
study revealed that chromium found in Earth’s continental crust remained stable before and afterthe rise of animals.
A. Right B. Wrong C. Not mentioned
Lyons liked to play computer games in his spare time.
A. Right B. Wrong C. Not mentioned
