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The effects of air pollution on natural ...

The effects of air pollution on natural conditions have been a disturbing problem for many years. Some scientists hold the view that the air inside houses may be more dangerous than the air outside. It may even be one hundred times worse.

Most scientists agree that every modern house has some kind of indoor pollution, which can cause a person to feel tired, to suffer eye pain, headache and other problems. Believe it or not, some pollutants can cause breathing diseases of blood and even cancer.

What made us feel relieved is that there’s growing concern about the problem now. It is true that when builders began constructing houses and offices they did not want to waste energy. To do this they built buildings that prevented or limited the flow of air between inside and outside. For the same purpose, man-made building materials were employed to build houses, which are now known to let out some harmful gases.

Facing the serious challenge, scientists have been searching for a way to handle the problem. To everyone’s delight, they discovered a natural pollution control system for building—green plants, though they do not really know how plants control air pollution. Scientists suppose that a plant’s leaves absorb or take in the pollutants and in exchange gives out oxygen through its leaves and tiny organizations on its roots. Therefore they recommend that all buildings should have one large plant or several small plants inside for every nine square meters of space. Because studies indicate that different plants absorb different chemicals, the most effective way to clean the air is to use different kinds of plants. In conclusion, having green plants inside your house can make it a prettier and healthier place. Why not try?

1.Which of the following statements is TRUR?

A.Outside air pollution is more harmful than the air inside.

B.Scientists have discovered how plants control air pollution

C.Indoor air pollution may cause diseases including cancer.

D.Only large plants can absorb harmful gases indoors.

2.According to scientists, some kind of indoor pollution can be found in ________.

A.every old building

B.every modern house

C.all kinds of houses

D.all kinds of offices

3.What does the underlined part “To do this” refer to in Para3?

A.To build houses and offices

B.To limit the air flow inside

C.To use man-made materials

D.In order not to waste energy

4.The reason why we should use different kinds of plants to clean the air is that ___.

A.plants can drive out all kinds of pollutants indoors

B.plants can absorb different harmful indoor chemical

C.plants can take in all pollutants inside and outside

D.plants may give out more oxygen than people need

 

1.C 2.B 3.D 4.B 【解析】文章介绍了室内空气污染的问题,并提出了用植物来吸收这些有害的化学物质的方法。 1.C 细节题。根据文章第二段which can cause a person to feel tired, to suffer eye pain, headache and other problems.  some pollutants can cause breathing diseases of blood and even cancer. 可知室内空气污染会导致很多疾病,甚至癌症。故C正确。 2.B 细节题。根据第二段第1行Most scientists agree that every modern house has some kind of indoor pollution可知在每一个现代的房子里都会有室内空气污染的情况,故B正确。 3.D 推测词义题。根据上文did not want to waste energy. To do this 可知为了节省资源,很多建筑商都会这样做,故to do this指did not want to waste energy故D正确。 4.B 细节题。根据文章最后一段Because studies indicate that different plants absorb different chemical可知不同的植物可以吸收不同的有害的室内化学物质。故B正确。
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