There was one thought that air pollution affected only the area immediately around large cities with factories and heavy traffic.At present, we realize that although these are the areas with the worst air pollution, the problem is really worldwide.On several occasions over the past decade,a heavy cloud of air pollution has covered the east of the United States and brought health warnings in distant areas away from any industrial cities.In fact,the very climate of the entire earth may be infected by air pollution.Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil)is creating a “greenhouse effect”—— keeping heat reflected from the earth and raising the world’s average temperature.If this view is correct and the world's temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York,Boston,Miami,and New Orleans will be in water.
Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’s temperature—a result that would be equally disastrous.A drop of just a few degrees could create something close to a new ice age,and would make agriculture difficult or impossible in many of our top farming areas.Today we do not know for sure that either of these conditions will happen.Perhaps,if we are lucky enough,the two tendencies will offset each other and the world's temperature will stay about the same as it is now.Driven by economic profits, people ignore the damage on our environment caused by the “advanced civilization”.Maybe the air pollution is the price the human beings have to pay for their development.But is it really worth-while?
小題1:People used to think that air pollution_________ .
A.caused widespread damage in the countryside
B.a(chǎn)ffected the entire eastern half of the United States
C.had a very bad effect on health
D.existed merely in urban and industrial areas
小題2:As to the greenhouse effect, the author_________.
A.shares the same view with the scientists.
B.is uncertain of its occurrence
C.rejects it as being ungrounded
D.thinks that it will destroy the world soon
小題3:The underlined word “offset” in the second paragraph could be replaced by_______.
A.counter-actB.break fromC.get alongD.communicate
小題4:This passage is primarily about________ .
A.the greenhouse effect
B.the burning of fossil fuels
C.the potential effect of air pollution
D.the possibility of a new ice age

小題1:D
小題2:B
小題3:A
小題4:C

試題分析:
小題1:根據(jù)There was one thought that air pollution affected only the area immediately around large cities with factories and heavy traffic,故選D。
小題2:根據(jù)Today we do not know for sure that either of these conditions will happen.以及全文內(nèi)容故選B。
小題3:根據(jù)and the world's temperature will stay about the same as it is now.可知offset意思是抵消,故選A
小題4:結(jié)合全文內(nèi)容,可知這篇短文主要講了空氣污染的潛在影響,故選C
點(diǎn)評:本文說明了這篇短文主要講了空氣污染的潛在影響。并且提出了這樣一個(gè)問題:人類文明的進(jìn)步要以空氣被污染為代價(jià),這是否值得?答題前先閱讀問題,然后帶著問題,讀全文,找出答題所需要的依據(jù),完成閱讀。
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科目:高中英語 來源:不詳 題型:閱讀理解

The Iceberg Was Only Part ofIt
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And a second, put forward by a Titanic historian from Britain, contends that the icy waters created ideal conditions for an unusual type of mirage(海市蜃樓) that hid icebergs from lookouts whose duty was to watch carefully for danger ahead and confused a nearby ship as to the liner’s identity, delaying rescue efforts for hours.
Most people know mirages as natural phenomena caused when hot air near the Earth’s surface bends light rays upward. In a desert, the effect prompts lost travelers to mistake patches of blue sky for pools of water. But another kind of mirage occurs when cold air bends light rays downward. In that case, observers can see objects and settings far over the horizon. The images often undergo quick distortions — not unlike the wavy reflections in a funhouse mirror.
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小題2:
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小題3:
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小題4:
A.a(chǎn)s long asB.a(chǎn)s far back asC.a(chǎn)s well asD.a(chǎn)s much as
小題5:
A.basisB.plotC.causeD.meaning
小題6:
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小題7:
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小題9:
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A.As a resultB.At the same timeC.In additionD.On the contrary
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科目:高中英語 來源:不詳 題型:閱讀理解

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D.We should stop our college education to follow in those successful people’s steps.
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科目:高中英語 來源:不詳 題型:閱讀理解

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B.can be harmful to people’s health
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