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Jane doesn't intend to hunt work in no time because she supposes that if she ______ a job she probably wouldn't be able to care for her sick parents as often as possible.
A. has to get B. had got C. were to get D. could have got
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As we all know, the Internet will let people have ______ to huge amounts of information from their own homes.
A.entrance B.way C.means D.a(chǎn)ccess
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In this hotel, the bread and butter ______served for breakfast. Meanwhile, a knife and fork _____very useful for a foreigner.
A. is; is B. are; are C. is; are D. are; is
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Jim is _________ person, and everyone is willing to be _________ with him.
A. so kind a, friends B. so a kind, friends C. so kind a, friend D. so a kind, friend
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A month’s _____ is required from whichever party wishes to end the agreement.
A. message B. letter C. sentence D. notice
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It is midnight on September 22,2012.The sky above Manhattan,New York is filled with a curtain of colorful light. New Yorkers are fascinated by the beautiful aurora(極光).However, their fascination is short-1ived.
Within a few seconds,electric bulbs dim(變暗)and flicker(閃爍),then become unusually bright for a few seconds.Then all the lights second go out.Within 90 seconds,the entire eastern half of the US is without power.
Besides the US,Europe,Japan and China are also hit by the same terrible event.It is a violent solar flare(太陽耀斑),150 million kilometers away on the surface of the sun.
Science fiction? No.A report funded by NASA and issued by the US National Academy of Sciences in January this year says it could happen.
A massive solar flare is most likely on a spring or autumn night in 2012,according to the report.
Solar flares are huge explosions on the surface of the sun.In a matter of just a few minutes they heat material to many millions of degrees and release as much energy as a billion megatons(百萬噸)of TNT explosives.Solar flares release a stream of charged high-energy particles(粒子).They are called“solar winds”
If one solar‘‘wind’’should hit the Earth's magnetic shield(磁揚(yáng)),the result could be terrible for humans.
But there’s no need to run for cover from solar winds. They do not harm 1ife on Earth,they only affect the way we live,especially since we depend so much on modern technology.They can pump extra electricity into power line, and pipelines,causing blackouts and fuel leaks(泄漏). Solar winds are also known to affect mobile phone operations, and may disrupt wireless Internet services.
Moreover, solar winds can prevent normal satellite operations,and disrupt radio communications and navigation systems such as the Global Positioning System.
Auroras are powered by solar wind.This wind blows past the Earth at about 400-700 km per second and creates storms in the Earth’s magnetic environment.In the polar regions these explode into southern or northern polar lights.
The most serious solar storm that hit Earth in history happened in 1859. It caused the failure of telegraph(電報(bào))systems in Europe and North America.
So, for humans,the sun is a double-edged sword. Without1 the sun, there would be no 1ife on Earth. Without the sun, Earth would be a frozen dark ball floating in space.However, on the other hand,the sun can disorder our 1ives from time to time.
10.What is the main idea of the passage?
A.It introduces to readers the advantages and disadvantages of the sun.
B.It describes a science fiction set in Manhattan on 22 September 2012.
C.It shows readers the way in which solar winds form inside the sun.
D.It explains what solar flares are and their effects on human life.
11.The first two paragraphs are written_________.
A.to show a beautiful scene in a true story
B.to describe the beautiful scenery of Manhattan
C.to describe the power problem around the world
D.to introduce the topic of this passage
12.What can we conclude from the passage?
A.Solar flares will do great harm to those who are using the Internet.
B.Solar flares cannot reach as far as the polar regions.
C.Solar flares are huge explosions that happen inside the sun.
D.1f it weren’t’t for our reliance on technology, solar flares probably wouldn’t affect us.
13.Solar winds will likely affect us in the following ways EXCEPT that .
A.normal satellite operations will be stopped
B.the lights in the areas affected will go out at the same time
C.people on the streets will be struck to death
D.some navigation systems will be out of order
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It was ___ cool autumn night. ___ bright moon hung high in ___ sky.
A. the…The… the B.a ….The…a C.a…The..the D.a…A…the
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The foreigner is learning ___ Chinese and he is sure that ___ Chinese language is very difficult.
A. /…./ B. …the C. the…./ D.the….the
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I'm afraid you have no _____ but to come along with us.
A. possibility B. permission C. choice D. selection
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She is so _____ that she cried for days when her pet rabbit died.
A. sensitive B. sensible C. imaginative D.impressive
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