问题 选择题
无论是木锯还是钢锯,它们的锯齿都是东倒西歪的不在一个平面上,这是因为(  )

A.使锯齿更锋利

B.使锯更耐受撞击

C.可以使锯口加宽,减小材料对锯的摩擦力

D.锯用得太久,齿被撞歪

答案

答案:C

完形填空
完形填空。
Dear Bob,
       My name is Wang Jie. I want __1__ your pen pal. I live in Beijing, __2__  . I think Canada is a
  very beautiful __3__.I'm 14 years old and my birthday is __4__  September. I can __5__ a little
  English. I have __6__  brother or sister. I like to stay __7__  my classmates. We often play __8__ 
  after school, such as football, basketball, tennis and running. My favorite __9__  at school is math. I
  don't like English. It's too _10__ . Let's be good pen pals.
                                                                                                                                              Yours ,
                                                                                                                                           Wang Jie
( )1.  A. be          
( )2.  A. Shanghai    
( )3.  A. country      
( )4.  A. on          
( )5.  A. speak      
( )6.  A. a          
( )7.  A. at          
( )8.  A. the guitar  
( )9.  A. color        
( )10.A. difficult  
B. to be      
B. Singapore  
B. city        
B. at          
B. say        
B. some        
B. up          
B. soccer      
B. subject    
B. different  
C. to do    
C. China    
C. town      
C. of        
C. talk      
C. for      
C. for      
C. sports    
C. fruit    
C. easy      
D. to have      
D. Chinese      
D. village      
D. in            
D. tell          
D. no            
D. with          
D. with          
D. teacher      
D. interesting  
问答题 案例分析题