2022英语周报综合训练答案

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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（污染物）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.

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．there may be more harmful gases outside the buildings

C．man-made building materials give off dangerous gases

D．the air indoors is polluted, which is very harmful

2. Some kind of indoor pollution can be found in _______.

A．every old house B．every modern house

C．all kinds of houses D．all kinds of offices

3. The indoor air pollution is caused by ______.

A．the man-made building materials and the limit of air-flow

B．the building way that the builders want to save energy

C．the building things that are made of man-made materials

D．the limit of the flow of air between inside and outside

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 make our houses prettier and more healthy

D．plants can absorb all kinds of harmful indoor chemicals

试题答案

1.C

2.B

3.A

4.D

【解析】

试题分析：本文是一篇科技说明文。主要是讲的室内空气污染现在已经被更多的人关注了，科学家们也正在寻找一系列的方法来解决这些问题。

1. also began using man-made building materials. These materials are now known to let out harmful gases可以知道，室内空气污染比室外空气污染更严重的原因就是人工材料产生的气体。所以答案是C。

2.

3.They also began using man-made building materials. These materials are now known to let out harmful gases.可以知道，造成室内空气污染的原因，一个是limited the flow of air 一个是man-made material。所以答案选A。

4.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.可以得知，不同的植物能够吸收不同的化学气体，所以才要在房间内摆放不同的植物。所以答案是D。

考点：科技说明类短文

— John, have you seen the program＂I am a singer＂ which______ hosted by Hunan TV?

— Yeah, of course. Each boy and each girl in our class ____ it.

A. are; love B. are; loves

C. is; loves D. is; love

试题答案

C

【解析】

试题解析：考查主谓一致。第一空所在定语的先行词是a singer，为单数，故用is；第二空表示每一个男孩和女孩，并不强调一个男孩和一个女孩的搭配，故视为单数。句意：约翰，你看过由湖南卫视主办的我是歌手这个节目吗？当然，我们班每个男生和女生都喜欢看。故选C。

考点：考查主谓一致。

.2022英语周报综合训练答案。