2020 职称英语理工类 A 真题及答案第1 部分：词汇选项( 第1～15 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. controlB. observeC. regulateD. accept2. She showed a natural aptitude for the work.A. senseB. talentC. flavorD. taste3. Most people find rejection hard to accept.A. excuseB. clientC. refusalD. destiny4. The organization was bold enough to face the press.A. pleasedB. powerfulC. braveD. sensible5. They were locked in mortal combat.A. deadlyB. openC. actualD. active6. We were attracted by the lure of quick money.A. amountB. supplyC. temptD. sum7. The procedures were perceived as complex and less transparent.A. clearB. necessaryC. specialD. correct8. The Stock Exchange is in turmoil following a huge wave of selling.A. ServiceB. dangerC. disorderD. threat9. He believes that Europe must change or it will perish.A. surviveB. lastC. dieD. move10. There was a simultaneous trial taking place in the next build.A. fairB. full C .coexisting D. public11. They promote assimilation of ethnic groups into the main-stream culture.A. policyB. value C .equality D. integration12. A salesman ’s cardinal rule is to satisfy customers.A. principalB. officialC. simpleD. legal13. I must compliment you on your handling of a very difficult situationA. silenceB. praise C .assure D. complain14. We lived for years in a perpetual state of fearA. emotionalB. nervousC. terribleD. Continuous15. The starving children were a pathetic sight.A. commonB. unexpectedC. unforgettableD. pitiful第2 部分：阅读判断( 第1 6～22 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：如果该句提供的是准确信息，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 speciesdidn ’t flourish sooner, once sufficient oxygen covered theEarth ’s surface. Animals began to prosper at the end of theProterozoic period, about 800 million years ago —but whatabout the billion-year stretch before that, when mostresearchers 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 researcherNoah Planavsky and his colleagues found that oxygen levelsduring the “boring billion ”period were only 0.1% of whatthey are today. In other words, Earth ’s atmosphere couldn ’thave supported a diversity of creatures, no matter whatgenetic advancements were poised to occur.“There is no question that genetic and ecologicalinnovation must ultimately be behind the rise of animals, butit is equally unavoidable that animals need a certain levelof 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 potentiallyprevent 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 theEarth ’s continental crust, and chromium oxidation isdirectly 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 comparedtheir data with other samples taken from younger localesknown to have higher levels of oxygen.Oxygen’s role in controlling the first appearance ofanimals 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 tosupport 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 inthe nature of Earth surface Cr cycling ”b efore and after the rise of animals.“If we are right, our results will really change howpeople 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. ”“There’s a lot of interest right now in a broader discussion surrounding the role that environmental stabilityplayed in the evolution of complex life, and we think ourresults are a significant contribution to that, ”R einhard said.16. The study discovered the rise of animals occurredearlier than the Proterozoic period.A. RightB. WrongC. Not mentioned17. Many researchers believe the oxygen level was high during pre-animal times.A. RightB. WrongC. Not mentioned。