2021年职称英语考试《理工类》考试共65题，分为单选题和多选题和判断题和计算题和简答题和不定项。小编为您整理精选模拟习题10道，附答案解析，供您考前自测提升！

1、The company has the right to end his employment at any time.【单选题】

A.provide

B.stop

C.offer

D.continue

正确答案:B

答案解析:公司有权利可随时终止与他的雇佣关系。本题难度不大，end是常用词，此处是动词，指“结束”，和stop“停止”是近义词，其他三项都是常用词，和答案意义差异较大，干扰性不强。答案是B。

2、What Is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was - 91℃, which occurred in Antarctica (南极洲) in 1983.We encounter an interesting situation when we discuss temperatures in space.Temperatures in Earth orbit actually range from about +120℃ to - 120℃. The temperature depends upon whether you are in direct sunlight ｏｒshade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science fｏｒwell, de signed space suits that protect astronauts from these temperature extremes.The space temperatures just discussed affect only our areal of the solar _____. Obviously, it is hotter closer to the Sun ａｎｄ　colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about - 210℃. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your location. We are taught it is supposedly impossible to have a temperature below absolute zero, which is - 273℃, at which atoms do not move. Two scientists, whose names are Cornell ａｎｄ　Wieman, have successfully cooled down a gas to a temperature barely above absolute zero. They won a Nobel Prize in Physics in 2001 fｏｒtheir work, not a discovery, in this case.Why is the two scientists\' work so important to science?In the 1920s, Satyendra Nath Bose was studying an interesting theory about special light particles we now call photons (光子). Bose had trouble convincing other scientists to believe his theory, so he contacted Albert Einstein. Einstein\'s calculations helped him theorize that atoms would behave as Bose thought—but only at very cold temperatures.Scientists have also discovered that ultra - cold(超冷) atoms can help them make the world\'s atomic clocks even more accurate. These clocks are so accurate today they would only lose one second every six million years! Such accuracy will help us travel in space because distance is velocity times time 4 ( d = v×t). With the long distances involved in space travel, we need to know time as accurately as possible to get accurate distance.【单选题】

A.system

B.energy

C.year

D.rays

正确答案:A

答案解析:本题难度不大，考查词义辨析，但干扰项干扰不大。可以先看选项得到信息提示。根据上下文逻辑，文章此处是说“太阳系”，答案是A。

3、I\'d very much like to know what your aim in life is.【单选题】

A.thought

B.idea

C.goal

D.plan

正确答案:C

答案解析:我很想知道你的人生目标是什么。本题有一定难度，虽然选项都是常用词汇，但干扰项干扰较大。aim和goal都有“目标”的意思，是近义词，A项指“思想”，B项指“想法”，D项指“计划”，最佳答案是C。

4、The SmogFｏｒover a month, Indonesia was in crisis. Forest fires raged out of control as the country suffered its worst drought fｏｒ50 years. Smoke from the fires mixed with sunlight ａｎｄ　hot dry air to form a cloud of smog. This pollution quickly spread ａｎｄ　within days it was hanging over neighboring countries including Malaysia, Singapore ａｎｄ　Thailand. When the smoke combined with pollution from factories ａｎｄ　cars, it soon became poisonous. Dangerous amounts of CO became trapped under the smog ａｎｄ　pollution levels rose. People wheezed (喘息) ａｎｄ　coughed as they left the house ａｎｄ　their eyes watered immediately. The smog made it impossible to see across streets ａｎｄ　whole cities disappeared as grey soot(烟灰) covered everything. In some areas, water was hosed (用胶管浇) from high-rise city buildings to try ａｎｄ　break up the smog. Finally, heavy rains, which came in November. Put out the fires ａｎｄ　clear the air. But the environmental costs ａｎｄ　health problems will remain. Many people from South-Eastern Asian cities already suffer from breathing huge amounts of car exhaust fumes ａｎｄ　factory pollution Breathing problems could well increase ａｎｄ　many non-sufferers may have difficulties fｏｒthe first time. Wildlife has suffered too. In lowlａｎｄ　forests, elephants, deer, ａｎｄ　tigers have been driven out of their homes by smog. But smog is not just an Asian problem. In fact. was world was first used in London in 1905 to describe the mixture of smoke ａｎｄ　thick fog. Fog often hung over the capital. Sometimes the smog was so thick ａｎｄ　poisonous that people were killed by breathing problems ｏｒin accidents. About 4, 000 Londoners died within five days as a result of thick smog in 1952. Water was used to try to break up the smog. 【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:A

答案解析:题句的意思是“人们用水来驱散烟雾”。第3段第2句就有这层意思，故选A。

5、Radiocarbon DatingNowadays scientists can answer many questions about the past through a technique called radiocarbon (放射性碳), ｏｒcarbon - 14 dating. One key to understanding how ａｎｄ　why something happened is to discover when it happened.Radiocarbon dating was developed in the late 1940s by physicist Willard F. Libby at the University of Chicago. An atom of ordinary carbon, called carbon -12, has six protons (质子) ａｎｄ　six neutrons (中子) in its nucleus (原子核). Carbon - 14, ｏｒC - 14, is a radioactive, unstable form of carbon that has two extra neutrons. It returns to a more stable form of carbon through a process called decay (衰减). This process involves the loss of the extra neutrons ａｎｄ　energy from the nucleus.In Libby\'s radiocarbon dating technique, the weak radioactive emissions(放射)from this decay process are counted by instruments such as a radiation detectｏｒａｎｄ　counter. The decay rate is used to determine the proportion of C -14 atoms in the sample being dated.Carbon - 14 is produced in the Earth\'s atmosphere when nitrogen(氮) - 14, ｏｒN - 14, interacts with cosmic rays (宇宙射线). Scientists believe since the Earth was formed, the amount of nitrogen in the atmosphere has remained constant. Consequently, C -14 formation is thought to occur at a constant rate. Now the ratio of C -14 to other carbon atoms in the atmosphere is known. Most scientists agree that this ratio is useful fｏｒdating items back to at least 50,000 years.All life on Earth is made of organic molecules (分子) that contain carbon atoms coming from the atmosphere. So all living things have about the same ratio of C -14 atoms to other carbon atoms in their tissues (组织). Once an organism (有机体) dies it stops taking in carbon in any form, ａｎｄ　the C -14 already present begins to decay. Over time the amount of C - 14 in the material decreases ａｎｄ　the ratio of C - 14 to other carbon atoms goes down. In terms of radiocarbon dating, the fewer C -14 atoms in a sample, the older that sample is.The radiocarbon dating technique is only about 40 years old.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:B

答案解析:本题有一定难度，需要认真寻找答案依据。主要答案依据在文章第二段第一句：Radiocarbon dating was developed in the late 1940s谈到放射性碳测定法源于20世纪40年代，显然，早就超过了40年历史，所以本题错误，答案是B。

6、Human facial expressions differ from those of animals in the degree to which they can be deliberately controlled ａｎｄ　modified. 【单选题】

A.sufficiently

B.noticeably

C.intentionally

D.absolutely

正确答案:C

答案解析:deliberately和intentionally同义：有意地、故意地；sufficiently：充分地、足够地；noticeably：显而易见地、明显地；absolutely：绝对地、完全地。

7、The leading astronomers of the sixteenth ａｎｄ　seventeenth centuries were fascinated by comets. 【单选题】

A.intrigued

B.infected

C.inconvenienced

D.inclined

正确答案:A

答案解析:fascinate:使…着迷、强烈地吸引住，与intrigue（引起……的兴趣或好奇心）意思相近；infect:传染；inconvemence:使……不便；incline:使……倾向于、使……想要。

8、If we leave now, we should miss the traffic.【单选题】

A.direct

B.stop

C.mix

D.avoid

正确答案:D

答案解析:我们现在走，应能避开交通高峰。本题考查引申意义，miss指“想念”，引申意思是“错过，避开”，和avoid“避免”是近义词，其他三项都是常用词，和答案意义差异较大，干扰性不强。

9、Successful leaders dominate events rather than react to them. 【单选题】

A.control

B.contribute

C.convey

D.contact

正确答案:A

答案解析:dominate:支配，和control（控制）意思接近；contribute:捐助、捐献、贡献、投稿；convey：搬运、传达；contact:接触、联系。

10、A Great Quake Coming?Everyone lives in San Francisco knows that earthquakes are common in the Bay Area ａｎｄ　they can devastate. In 1906, fｏｒexample, a majｏｒquake destroyed about 28000 buildings ａｎｄ　killed hundreds, perhaps thousands of people. Residents now wonder when will the next "Big One" strike. It\'s bound to happen someday. At least seven active fault(断层) lines run through the San Francisco area. Faults are places where pieces of Earth\'s crust (地壳) slide past each other. When these pieces slip, the ground shakes.To prepare fｏｒthat day, scientists are using new techniques to reanalyze the 1906 earthquake ａｎｄ　predict how bad the damage might be when the next one happens.One new finding about the 1906 quake is that the San Andreas Fault split apart faster than scientists had assumed at the time. During small earthquakes, faults rupture(断裂) about 2.7 kilometers persecond. During bigger quakes, however, ruptures can happen faster than 3.5 kilometers persecond.At such high speeds, massive amounts of pressure build up, generating underground waves that can cause more damage than the quake itself. Lucky fｏｒSan Francisco, these pressure pulses (脉冲) traveled away from the city during the 1906 event.Looking ahead, scientists are trying to predict when the next majｏｒquake will occur. Records show that earthquakes were common before 1906. Since then, the area has been relatively quiet. Patterns in the data, however, suggest that the probability of a majｏｒearthquake striking the Bay Area before 2032 is at least 62 percent.New buildings in San Francisco are quite safe in case of future quakes. Still, more than 84 percent of the city\'s buildings are old ａｎｄ　weak. Analyses suggest that another massive earthquake would cause extensive damage.People who live there today tend to feel safe because San Francisco has remained pretty quiet fｏｒa while. According to the new research, however, it\'s not a matter that whether "the Big One" will hit here. It\'s just a matter of when.Earthquakes rarely happened in San Francisco before 1906.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:B

答案解析:本题难度不大，找到答案依据不难。答案依据在第五段。第五段第二句：Records show that earthquakes were common before 1906.谈到记录显示在1906年前地震十分常见的。所以本题错误，答案是B。