综合填空。选择方框中所给词的正确形式填空，每词限用一次。we,

问题填空题

综合填空。选择方框中所给词的正确形式填空，每词限用一次。

we, if, machine, kill, little, bring, on, pollute

     Hundreds of years ago, life was much harder than it's today. People didn't have modern 1            .
     Life today has 2            new problems. One of the biggest problems is pollution. Water pollution has
made our rivers and lakes dirty. It 3             our fish and affects our drinking water. Noise pollution makes 4            talk louder and louder. Air pollution is the most serious kind of pollution. It affects every living
thing in the world.
    We need to do many things to fight 5            . We can put waste things in the dustbin and not throw it 6            the ground. We can go to work by bus or with our friends in the same car. 7            there are
fewer people driving, there will be 8             pollution. Laws are not enough. Every person must help to
fight pollution.

答案

1. machines 2. brought 3. kills 4. us 5. pollution 6. on 7. If 8. less