问题 操作题

如图所示,一束光射到两个相互垂直的平面镜上,请画出经两个平面镜反射的光路图.

答案

完形填空
完形填空。
       In America, when people say "man's best friend", they don't mean     1    person. Instead they are
talking about a lovely animal: a dog! These words show the friendship between people and     2   . Dogs
and other pets can give     3    to people's lives. Some people think of their pets as their children. A few
even leave all their money to their     4    when they die! 
       Animals can help people, too. Dogs can be taught to become the "   5   "for a blind (瞎的) person or
"   6    "for a deaf (聋的) person. Scientists have found that pets help people live    7   ! They make people
happier, too. Because of that animals are brought into hospitals for "visits".
       Americans hold "Be    8    to Animals Week", the first week of May. Pet shows are held during the
week. Even if you don't live in America, you, too, can do this. How? If you have a pet, take     9    time
this week to play with it. Remember to give it delicious    10 
      If you don't have a pet, be kind to animals around you. If you see a    11   dog, don't kick it or throw
things at it. Instead, just leave it alone, or better yet, make friends with it. If others around you do bad things
to an animal, try to   12   them. As people, we must protect animals who can't speak for themselves.
( )1. A. another 
( )2. A. persons  
( )3. A. sadness  
( )4. A. family  
( )5. A. eyes   
( )6. A. eyes   
( )7. A. alone  
( )8. A. Bad    
( )9. A. less   
( )10. A. food   
( )11. A. lovely  
( )12. A. help   
B. the other
B. people  
B. sad   
B. pets   
B. ears   
B. ears   
B. together 
B. Happy  
B. more   
B. meat   
B. little            
B. catch  
C. other   
C. plants   
C. happiness  
C. children   
C. hands    
C. hands     
C. shorter   
C. Nice    
C. no        
C. drink     
C. street    
C. beat   
D. others  
D. animals   
D. happy     
D. parents    
D. feet       
D. feet                           
D. longer  
D. Sad        
D. some       
D. milk       
D. home      
D. stop     
问答题 简答题