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阅读下面材料,从每题所给的三个选项中,选出最佳选项。
People usually check whether their keys, wallets and phones are with them before going out . But many people in China now have one more important thing to take -- a face mask (面罩). They hope that it can protect them from polluted air.
Since January, many cities in China have seen a lot of foggy days.In Beijing, only five days in January were free of smog . It is dirty air that looks like a mixture(混合物) of fog and smoke caused mainly by smoke from cars and factories in cities. Poor air has done harm to people’s health, especially for children and old people. They fall ill easily and the hospitals are full of the the patients of respiratory (呼吸道的) problems.
To respond to the air  problems, the Chinese government and many Chinese people have  started to take action. Beijing announced plans to use cle an fuel in government vehicles and plant trees. It also asked citizens to set off fewer fireworks for celebrations.
Three students from No.4 High School in Beijing wrote a report to advise how to fight the air pollution. They suggested that cars with large emissions (排放)should not be allowed to use and factories should be closely watched.
We hope more people will join us in making a difference. With all our efforts , the blue skies will certainly return for good。
【小题1】People will take   with them before going out, hoping to protect them from the polluted air.
A.keysB.wallets
C.phonesD.face masks
【小题2】What does the underline word mean?
A.阴雨的B.阳光明媚的
C.雾蒙蒙的D.月光下的
【小题3】What are the main factors for PM2.5 according to the Chinese Academy of Sciences?
A.driving cars and having fewer trees
B.burning coal and having fewer trees
C.having fewer trees and no rain
D.driving cars and burning coal
【小题4】Why do the air problems and environmental protection become a concern for the whole nation?
A.Because people can’t see things clearly.
B.Because there are many hazy days.
C.Because the poor air is bad for people’s health.
D.Because there are so many cars in China.
【小题5】What can people do to prevent pollution?
A.use less coal than now
B.cut down on energy use
C.use less resources
D.reduce and make full use of energy and resources
答案:【小题1】D
【小题2】C
【小题3】D
【小题4】C
【小题5】D
试题分析:本文介绍了中国的许多城市的空气都被污染了,造成空气污染的主要因素有两个,开车和煤炭燃烧。很差的空气对身体健康危害很大,特别是对孩子和老人。我们政府正在采取措施防止污染,给人们一个健康的生活环境。
【小题1】细节理解题。根据But many people in China now have one more important thing to take, a face mask.现在中国许多人有一个更重要的东西要带,面具。.故选D。
【小题2】词义猜测题。根据下句,people can only see things that are very near them。人民只能看到离他们很近的东西。可知hazy是雾蒙蒙的。故选C。
【小题3】细节理解题。根据driving cars and burning coal are two major factors for PM2.5。开车和煤炭燃烧是空气污染的主要因素。故选D。
【小题4】细节理解题。根据Poor air is bad for people’s health, especially for children and the elderly. 很差的空气对身体健康危害很大。故选C。
【小题5】细节理解题。根据It calls on people to make full use of energy and resources and cut down on energy use.它号召人们充分利用能源和资源减少能源的使用。故选D。
考点:环境类短文阅读。