问题 完形填空
阅读下面短文, 从各题所给的四个选项中选出最佳答案。
      Ben and his classmates are watching a DVD about the environment. A long time ago, most towns and
villages were very small. The number of people   1   lived in every country was much smaller than it is today,
too. There was   2   heavy industry. People did not use chemicals. There were no motor vehicles and there
were no factories. So there was very   3   pollution. 
      Sadly, our environment is much dirtier than   4   was in the past. This is a   5   because the best way for us
to be healthy is to live in a clean environment.
      The air and water are much dirtier than they   6   be. The chemical factories and cars   7   terrible gas. The
water   8   with chemicals from the factories and ships. This means we are destroying our home little by little.
In the DVD we will try to find ways to   9   our environment cleaner and find ways to stop future pollution. We
hope you will learn   10   you can help make the world a cleaner and healthier place.
( ) 1. A. who       
( ) 2. A. not      
( ) 3. A. much     
( ) 4. A. he       
( ) 5. A. question 
( ) 6. A. used to  
( ) 7. A. clone    
( ) 8. A. pollutes  
( ) 9. A. consider  
( ) 10. A. because 
B. which        
B. no         
B. many         
B. she           
B. bridge       
B. are used to    
B. afford       
B. polluted   
B. give         
B. how        
C. whose         
C. few           
C. a little      
C. one           
C. problem       
C. were used to  
C. take          
C. is polluted   
C. make          
C. what        
D. whom          
D. a few         
D. little        
D. it            
D. difficulty    
D. was used to        
D. produce       
D. has polluted   
D. develop     
D. why         
答案

1-5 ABDDC   6-10 ADCCB

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