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问题 解答题
解方程
①
1
4
x-
1
2
=
3
4

②
2x+1
3
-
5x-1
6
=1．
答案

①去分母，得

x-2=3，

移项，得

x=5．

②去分母，得

4x+2-5x+1=6，

移项，合并同类项，得

-x=3，

化系数为1，得

x=-3．

完形填空
完形填空。
     Lucy lives in the Zhongshan Road. She_1  in the No.6 Middle School. Every day she gets up early
and goes to school early. Her home is a little far_2  her school. So she usually _3_ a bus. _4  the bus
stop there is a fruit shop. It sells different_5_. Lucy often buys_6_in it and she is good at_7_fruit. From
the bus stop she walks along the Nanjing Road. Then she takes the third turning_8_the right. Her school
is_9_ 50 metres. _10_it there is a park.
( )1.A. studies          
( )2.A. to              
( )3.A. has              
( )4.A. At              
( )5.A. kinds of fruits  
( )6.A. them            
( )7.A. selling          
( )8.A. along            
( )9.A. about            
( )10.A. At the front of 		B. leaves        
B. at            
B. takes        
B. Near to      
B. kinds of fruit
B. any          
B .buying        
B. at            
B. at            
B. In front of       		C. likes          
C. from          
C. goes          
C. Next to        
C. fruit          
C. some          
C. sells          
C. to            
C. away          
C. In the front of      		D. lives      
D. away      
D. by        
D. Next      
D. fruits    
D. it        
D. buys      
D. on        
D. on        
D. At front of               
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单项选择题

下列的（）不属于多媒体教材编制所依据的传播效果原理。

A、共同经验原理

B、重复作用原理

C、最小代价原理

D、信息增值原理
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