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完形填空.Sc 完形填空.     Scientists are trying

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完形填空.Sc
完形填空.
     Scientists are trying to make the desert into good land again.They want to bring     1      to the desert,  
so people can live and grow food.  They are     2     a lot about the desert.But     3    of the earth is
becoming desert all the time,scientists may not be able to     4     .the deserts. Scientists think that
people make deserts.  People are doing    5     things to the earth. 
     Some places on the earth don't get    6    .  But they still don't become deserts.This is _ 7   _ some
green plants are growing there.  Small green plants and grass are very     8     to dry places.Plants don't
let the wind blow the earth away.When    9   _ bit of rain falls,  the plants hold the water.    10    plants,  
the land can become a desert much more easily.
(     )1.A.food            
(     )2.A.learning        
(     )3.A.fewer and fewer  
(     )4.A.use              
(     )5.A.good            
(     )6.A.little rain      
(     )7.A.because          
(     )8.A.careful          
(     )9.A.a little        
(     )10.A.With            
B.water        
B.writing      
B.less and less
B.change      
B.better      
B.much warm    
B.for          
B.helpful      
B.a few        
B.Without      
C.money          
C.buying        
C. more and more
C.lose          
C.bad            
C.much rain      
C.as            
C.forgetful      
C. a lot        
C.For            
完形填空.Sc 完形填空.     Scientists are trying
1-5 BACBC   6-10 CABAB