中石油(华东)《科技英语》2014年春学期在线作业（四）

《科技英语》2014年春学期在线作业（四）
试卷总分：100 奥鹏学习网（aopeng123.cn) 发布
单选题
一、单选题（共 20 道试题，共 100 分。）
V
1. By the time he arrives in Beijing, we ________ here for two days.
A. will stay
B. have been staying
C. will have stayed
D. have stayed
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2. They are trying to ______ the waste discharged by the factory for profit.
A. expose
B. exhaust
C. exhibit
D. exploit
此题选: D 满分：5 分
3. Every country tries to maintain a(n) ______ balance of trade, which assures it of the means to buy necessary imports.
A. organic
B. favorite
C. compound
D. favorable
此题选: D 满分：5 分
4. He left orders that nothing ______ until the police arrived.
A. was touched
B. had been touched
C. should be touched
D. was to be touched
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5. The views of young people today on politics, social attitudes and life goals greatly ______ from their baby boomer parents.
A. distinct
B. differ
C. different
D. distinctive
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6. It seemed as though nothing could stop the ship from wrecking itself on the shore, where leaking fuel or an escape of Norway rats could ______ an ecological catastrophe(灾难) for wildlife.
A. release
B. blunt
C. trigger
D. boost
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7. ____ twice, the postman refused to deliver our letters unless we chained our dog.
A. Being bitten
B. Bitten
C. Having bitten
D. To be bitten
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8. My uncles house in the downtown area is much smaller than ours, but it is twice______expensive.
A. as
B. so
C. too
D. very
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9. The methods used to achieve these aims will be described later, and ______ can be seen broadly as a focusing on to a target.
A. up to now
B. so far
C. as yet
D. for the present
此题选: D 满分：5 分
10. Hearing the joke, all the students burst into ______ laughter.
A. visual
B. long-standing
C. spontaneous
D. contributing
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11. It was in 2005 _____we began to introduce this new technique into our company.
A. which
B. then
C. when
D. that
此题选: D 满分：5 分
12. Scientists have discovered genetic variations that make people more likely to get ______ on cigarettes and more prone to develop lung cancer.
A. retained
B. hooked
C. tired
D. hanged
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13. We must put the ______ side of the policy into consideration to avoid possible mistakes.
A. converse
B. reverse
C. reserve
D. revise
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14. How many more decades will have to pass ______ scientists succeed in providing a cure for cancer？
A. when
B. before
C. since
D. until
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15. For the time being, Philips could not say when such a product as this might be ______ available, however.
A. vertically
B. commercially
C. horizontally
D. rapidly
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16. It is the business of the petroleum industry to find crude oil and gas and to ______ them from the earth on-shore and off-shore.
A. retrieve
B. exchange
C. proceed
D. change
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17. Thank heavens! You have come back home. You should be thankful that you have escaped with only ______ injuries.
A. minor
B. major
C. significant
D. abundant
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18. You must speak slowly, so that you can make yourself ________.
A. understood
B. understand
C. understanding
D. to understand
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19. If it_____tomorrow, we will stay indoors to have our training class.
A. rains
B. rained
C. will rain
D. is raining
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20. The annual income of school teachers in this place was ______ at＄900.
A. processed
B. assessed
C. summarized
D. valued
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