◎ 题干
完形填空。
    We know that trees are useful in our everyday life. They   1   us many things, such as wood, oxygen, rubber,
medicines and many other things. They can   2   tell us a lot about our climate. The following are the reasons. If
you   3   a tree, you can see that it has many rings (年轮). Most trees grow one new ring   4   year. Because of
this reason, we know   5   a tree is. A tree over a hundred years old means that it has more than a hundred   6  .
When the climate is dry or very cold, the trees do not grow very much and their rings are usually   7  . When it is
wet and warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means
that the   8   changed suddenly. If we look at the rings of this tree, we can   9   about the climate for a hundred
years. We can see  10   our climate is changing today.
(     ) 1. A. tell     
(     ) 2. A. not      
(     ) 3. A. cut down 
(     ) 4. A. many     
(     ) 5. A. how big  
(     ) 6. A. trees    
(     ) 7. A. big      
(     ) 8. A. climate  
(     ) 9. A. study    
(     ) 10. A. how      
B. ask        
B. too        
B. climb up   
B. every      
B. how long       
B. leaves     
B. thin       
B. trees      
B. get        
B. why      
C. give        
C. to          
C. walk past   
C. some        
C. how old        
C. people      
C. things      
C. sky         
C. learn       
C. when      
D. get         
D. also        
D. look at     
D. only        
D. how much       
D. rings       
D. small       
D. animal      
D. teach       
D. while     
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“完形填空。 We know that trees are useful in our everyday life. They1 us many things, such as wood, oxygen, rubber, medicines and many other things. They can2 t…”主要考查了你对  【科教类阅读】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。