题目内容
完形填空
Hundreds of years ago, life was 1 than it is today. People didn't have modern machines. There was no modern medicine, either.
Life today 2 new problems. One of the biggest is pollution(污染). Water pollution has made our rivers and lakes dirty. It kills our fish and affects (影响) our drinking water. Noise pollution makes us 3 louder and louder. Air pollution is the most serious kind of pollution. It affects 4 living thing in the world.
Cars, planes and factories all pollute(污染)our air every day. Sometimes the pollution is so thick that it is like a quilt 5 a city. This kind a quilt 6 smog(烟雾).
Many countries are making new laws (法律) to fight pollution. Factories must now clean their water 7 away, they mustn't blow dirty smoke into the air.
We need to do many other things. We can put waste things(废物)in the dustbin(垃圾箱)and 8 it on the ground. We can go to work by bus or with our friends in the same car. If 9 people driving, there will be less pollution.
Laws are not 10 . Every person must help to fight pollution.
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