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【题目】根据短文内容,选择最佳答案。Pollution
Hundreds of years ago, life was much harder than it is today. People didn't have modern machines. There was no modern medicine, either.
Life today has brought new problems. One of the biggest is pollution (污染). Water pollution has made our rivers and lakes dirty. It kills our fish and polluted our drinking water. Noise pollution makes us talk louder and become angry more easily. Air pollution is the most serious kind of pollution. It's bad to all living things in the world.
Cars, planes and factories all pollute our air every day. Sometimes the polluted air is so thick that it is like a quilt over a city. This kind of quilt is called smog(烟雾).
Many countries are making rules to fight pollution. Factories must now clean their water before it is thrown away, they mustn't blow dirty smoke into the air.
We need to do many other things. We can put waste things in the dustbin and not throw it on the ground. We can go to work by bus or with our friends in the same car. If there are fewer people driving, there will be less pollution.
Rules are not enough. Every person must help to fight pollution.
(1)Hundreds of years ago, life was much harder than it is today because _______.
A.there were not any modern machines
B.there was no modern medicine
C.both A and B
D.there were not many people
(2)What is the biggest problem in today's life?
A.Water pollution
B.Air pollution
C.Noise
D.Pollution
(3)The most serious kind of pollution is ________.
A.noise pollution
B.air pollution
C.water pollution
D.A, B and C
(4)Factories must clean their water ________.
A.before they are thrown away
B.when they are thrown away
C.after it is thrown away
D.before it is thrown away
(5)From the passage we know that ________.
A.a few years ago, there was no smog at all
B.today people don't have to talk to each other in a loud voice
C.we can drink water from the polluted rivers and lakes'
D.people are making rules in order to fight pollution

【答案】
(1)C
(2)D
(3)B
(4)D
(5)D
【解析】本文主要介绍的内容为现在的生活给我们带来了污染,包括空气污染,声音污染,水污染等。并介绍了一些能够保护环境的方法。
(1)C细节理解题。根据People didn't have modern machines.“他们没有现代机器。”可知他们生活比现在困难的原因是没有现代工具。故选C。
(2)D :细节理解题。根据第一段第四句话One of the biggest is pollution.“污染是最大的问题中的一个。”可知四个选项中污染是最大的问题。故选D。
(3)B细节理解题。由第一段倒数第二句话Air pollution is the most serious kind of pollution.“空气污染是最严重的污染。”可知。故选B。
(4)D细节理解题。由第二段第四句话Factories must now clean their water before it is thrown away.“工厂在排出废水之前必须先清理。”可知。故选D。
(5)D推理判断题。文章最后一段都在介绍通过什么方式能够减小污染。可知人们正在制定规则来抗击污染。故选D。

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