问题 填空题

根据“不在同一直线上的三点确定一个圆”,可以判断平面直角坐标系内的三个点A(3,0)、B(0,-4)、C(2,-3)           确定一个圆(填“能”或“不能”)。

答案

解:先设出过A,B两点函数的解析式,把A(3,0)、B(0,-4)代入即可求出其解析式,再把C(2,-3)代入解析式看是否与A,B两点在同一条直线上即可.

完形填空

完形填空。
     It was raining hard when Jenny planned to go out for shopping.She
stayed at the door for 1 seconds and decided to 2 bus to the shopping
center.
     To her surprise she 3 so many people at the bus stop and the buses 4.
She didn’t know 5 . Another bus came and people crowded on at once.
She didn’t feel like 6like that, and had to 7 the stop. She looked at the
heavy rain and buses.The traffic was 8 at all, but was it possible to take
a taxi? She thought.She looked 9 to see if there were taxis coming or going
by. Maybe because of the bad weather, she didn’t even see a taxi. How
bad she felt! Then she decided to go back home and spent her afternoon
10 TV at home.
( )1  A. few    
( )2  A. by      
( )3  A. found  
( )4  A. crowded
( )5  A. to do  
( )6  A. do      
( )7  A. stand at
( )8  A. busy    
( )9  A. one way
( )10 A. watch  

B. a few        
B. on a          
B. heard        
B.  were crowded
B. to do what    
B. did          
B. wait for      
B. not busy      
B. the two ways  
B. watched      

C. little      
C. take a      
C. looked at    
C. were crowding
C. what to do  
C. to do        
C. stand        
C. heavy        
C. both ways    
C. to watch    

D. a little    
D. take        
D. understood  
D. have crowded
D. how to do    
D. doing        
D. wait        
D. much        
D. some ways    
D. watching    

单项选择题