For years scientists have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.
Indoor air pollution can cause a person to feel tired, to suffer eye pain, headache and other problems. Some pollutants can cause breathing disorders, diseases of blood and even cancer. Most scientists agree that every modern house has some kind of indoor pollution.
People have paid more attention to the problem now. It is true that when builders began making houses and offices they did not waste energy. To do this they build buildings that limited the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to let out harmful gases.
As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control system for building—green plants. Scientists do not really know how plants control air pollution. They believe that a plant’s leaves absorb or take in the pollutants. In exchange the plant lets out oxygen through its leaves and tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each absorbs different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and more healthy place.
【小題1】Generally speaking, indoor air pollution may be more harmful than the air outside because ______.

A.indoor air pollution can often make people seriously ill
B.man-made building materials give off dangerous gases
C.there may be more harmful gases outside the buildings
D.the air indoors is polluted, which is very harmful
【小題2】Some kind of indoor pollution can be found in______.
A.every modern house          B.every old house
C.a(chǎn)ll kinds of houses           D.a(chǎn)ll kinds of offices
【小題3】The indoor air pollution is caused by ______.
A.the limit of the flow of air between inside and outside
B.the building way that the builders want to save energy
C.the building things that are made of man-made materials
D.the man-made building materials and the limit of air-flow
【小題4】The reason why we should use different kinds of plants to clean the air is that ______.
A.plants can let out all kinds of pollutants indoors
B.plants may take in more oxygen which people need
C.plants can absorb all kinds of harmful indoor chemicals
D.plants can make our houses prettier and more healthy


【小題1】B
【小題2】A
【小題3】D
【小題4】C

解析試題分析:本文講述了室內(nèi)空氣污染的原因并提出了解決的方法,就是在家里種植綠色植物。
【小題1】B 細(xì)節(jié)題。根據(jù)文章第三段最后2句They also began using man-made building materials. These materials are now known to let out harmful gases.可知B項(xiàng)是室內(nèi)空氣污染的主要原因。
【小題2】A 細(xì)節(jié)題。根據(jù)第二段最后一句Most scientists agree that every modern house has some kind of indoor pollution.可知在每一所現(xiàn)代的房子里都有室內(nèi)空氣污染的現(xiàn)象。故A正確。
【小題3】D 細(xì)節(jié)題。根據(jù)文章第三段To do this they build buildings that limited the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to let out harmful gases.可知室內(nèi)空氣污染的主要原因是空氣流通不夠和材料的污染。故D正確。
【小題4】C 細(xì)節(jié)題。根據(jù)文章最后一段They believe that a plant’s leaves absorb or take in the pollutants. 和Studies of different plants show that each absorbs different chemicals. 可知不同的綠色植物能夠吸收不同的污染的物質(zhì)。故C正確。
考點(diǎn):考察環(huán)保類短文閱讀
點(diǎn)評(píng):本文講述了室內(nèi)空氣污染的原因并提出了解決的方法,就是在家里種植綠色植物。本文考查細(xì)節(jié)題為主,細(xì)節(jié)題可以在文章中直接找到與答案有關(guān)的信息?或是其變體。搜查信息在閱讀中非常重要它包括理解作者在敘述某事時(shí)使用的具體事實(shí)、數(shù)據(jù)、圖表等細(xì)節(jié)信息。在一篇短文里大部分篇幅都屬于這類圍繞主體展開(kāi)的細(xì)節(jié)。做這類題一般采用尋讀法?即先讀題,然后帶著問(wèn)題快速閱讀短文,找出與問(wèn)題有關(guān)的詞語(yǔ)或句子,再對(duì)相關(guān)部分進(jìn)行分析對(duì)比,找出答案。

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