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听下面一段材料,回答 听下面一段材料,回答第1至4题.   1.Why does the write

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听下面一段材料,回答
听下面一段材料,回答第1至4题.  
1.Why does the writer think our world is becoming much smaller?  
A.Because people are using modern traffic and modern communication means.  
B.Because the earth is being polluted day and night.  
C.Because the earth is blown away by the wind every year.
2.Pollution comes in many ways.We can even hear it.What does “it” mean here?  
A.Water pollution.                
B.Noise pollution.        
C.Air pollution.  
3.Why is air pollution the most serious kind of pollution?  
A.Because it makes us angry more easily.  
B.Because it makes our rivers and lakes dirty.  
C.Because it is bad for all living things in the world.  
4.Which of the following is NOT true?  
A.Many countries are making rules to fight against pollution.  
B.The pollution of the earth doesn't grow as fast as the world population does.  
C.Life today is much easier than it was hundreds of years ago.  
1-4：ABCB
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