2020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。小编每天为您准备了5道每日一练题目（附答案解析），一步一步陪你备考，每一次练习的成功，都会淋漓尽致的反映在分数上。一起加油前行。

1、We were shocked to find that Mary didn't know her guest's name【单选题】

A.frustrated

B.disturbed

C.relieved

D.surprised

正确答案:D

答案解析:shocked:震惊的，和surprised（吃惊的）意思相近；frustrated:泄气的；disturbed：打扰的、焦虑不安的；relieved:宽慰的。

2、Michael is now merely a good friend.【单选题】

A.largely

B.possible

C.just

D.rarely

正确答案:C

答案解析:题干大意：迈克仅仅是个好朋友。画线词merely：仅仅。选项中，just：仅仅。largely：很大程度上。如：I use the Web largely to communicate information about the organization. 我大量地使用网络技术来交流有关组织的信息。possible：可能的。如：We think every day about how to ensure that our staff can operate under the best possible conditions. 我们每天都在思考怎样确保我们的工作人员在尽可能最佳的条件下工作。rarely：很少的。如：Rarely would a single concern have the entire facilities required for a complete testing program. 很少有一个公司能拥有为完成整个测试程序所需要的全部设备。

3、A Great Quake Coming?
Everyone lives in San Francisco knows that earthquakes are common in the Bay Area and they can devastate. In 1906, for example, a major quake 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 for that 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 for San 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 major quake 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 major earthquake 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 for a 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.
San Francisco is fully prepared for another big earthquake.【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，需要认真吃透句意，做好判断。答案依据在第六段。第六段第二句：Still, more than 84 percent of the city's buildings are old and weak. Analyses suggest that another massive earthquake would cause extensive damage谈到旧金山84%以上的建筑物又旧又不结实，分析还指出下一次的大规模地震将造成巨大破坏。说明旧金山并没有做好充分准备，本题错误，答案是B。

4、Walking to Exercise the Brain
Do you think sitting and studying all the time will improve students grades? Think again. Getting some exercise may help, too.
New research with older people suggests that taking regular walks helps them pay attention better than if they didn't exercise.
Previous research had shown that mice learn, remember and pay attention better after a few weeks of working out on a running wheel. Mice that exercise have greater blood flow to the brain than those who don't. Their brain cells also make more connections.
Neuroscientists (神经科学家) from the University of Illinois at Urbana Champaign wanted to find out if the same thing is true for people. First, they measured the physical fitness of 41 adults, ages 58 to 77, after each person walked I mile. Then, participants looked at arrows on a computer screen and had to use computer keys to show which way one particular arrow was pointing.
Adults who were physically fit were faster at the arrow task, and their answers were just as accurate as their less - fit peers, the researchers found. The fitter participants also had more blood flow to a part of their brain responsible for paying attention and making decisions.
In a second study, 15 elderly people who completed a 6 - month aerobic - training (有氧运动) course were faster at attention tasks compared with 14 seniors who just did stretching and toning (韵律操) exercises for the same amount of time.
So, even going for a walk every 2 or 3 days for just 10 to 45 minutes can help. That should be good news for the elderly.
The effects of exercising on the brains of younger people haven't been studied yet. Still, it can't hurt to take occasional breaks and go for a walk or run around with friends. Whatever you do, though, don't try to read and walk at the same time. You could end up hurting yourself!
The first study on 41 elderly people found ______.【单选题】

A.the less - fit participants did arrow tasks faster

B.the fitter participants did arrow tasks faster

C.the less - fit participants gave more accurate answers

D.the fitter participants gave more accurate answers

正确答案:B

答案解析:本题有一定难度，需要认真阅读文章。答案依据在文章第五段。带着题干信息词回到文章定位。第五段第一句谈到，研究者发现身体健康的成年人完成箭头测试的速度更快，回来看选项，很明显，B是近义解释，是答案。

5、Light Night, Dark Stars
Thousands of people around the globe step outside to gaze at their night sky. On a clear night, with no clouds, moonlight, or artificial lights to block the view, people can see more than 14,000 stars in the sky, says Dennis Ward, an astronomer(天文学家) with the University Corporation for Atmospheric Research( UCAR) in Boulder, Colo. But when people are surrounded by city lights, he says, they're lucky to see 150 stars.
If you've ever driven toward a big city at night and seen its glow from a great distance, you've witnessed light pollution. It occurs when light from streetlights, office buildings, signs, and other sources streams into space and illuminates (照亮) the night sky. This haze (朦胧) of light makes many stars invisible to people on Earth. Even at night, big cities like New York glow from light pollution, making stargazing difficult.
Dust and particles of pollution factories and industries worsen the effects of light pollution. "If one city has a lot more light pollution than another," Ward says, "that city will suffer the effects of light pollution on a much greater scale."
Hazy skies also make it far more difficult for astronomers to do their jobs.
Cities are getting larger. Suburbs are growing in once dark, rural areas. Light from all this new development is increasingly obscuring (使变模糊) the faint (微弱的) light give off by distant stars. And if scientists can't locate these objects, they can't learn more about them.
Light pollution doesn't only affect star visibility. It can harm wild life too. It's clear that artificial light can attract animals, making them go off course. There's increasing evidence, for example, that migrating (迁徙) birds use sunsets and sunrises to help find their way, says Sydney Gauthreaux Jr. , a scientist at Clemson University in South Carolina, "When light occurs at night," he says, "it has a very disruptive (破坏性的) influence." Sometimes birds fly into lighted towers, high - rises, and cables from radio and television towers. Experts estimate that millions of birds die this way every year.
On a clear night, people can see ______.【单选题】

A.150 stars

B.hundreds of stars

C.one thousand stars

D.more than 14,000 stars

正确答案:D

答案解析:本题难度不大，答案依据比较明显，在文章第一段第二句，这句话主要谈到，在晴朗的夜晚人们能看到14，000多颗星星，回来看选项，D项符合原文句意，是答案。