问题 填空题
已知函数f(x)=
kx+2,x≤0
Inx,x>0
(k∈R),若函数y=|f(x)|+k有三个零点,则实数k的取值范围是______.
答案

由y=|f(x)|+k=0得|f(x)|=-k≥0,

所以k≤0,作出函数y=|f(x)|的图象,

由图象可知:要使y=-k与函数y=|f(x)|有三个交点,
则有-k≥2,即k≤-2,
故答案为:k≤-2.

完形填空
完形填空。
       In China, most people's names have    1     parts, the family names and the    2     names.
Most people may each have many names. For example, when they are very    3     at home,
they usually have nicknames (昵称). At school, they use their     4     names. If someone is a
writer, he or she has a    5     name. Now new couples (夫妇) are very    6    when they name
their children. Most of the names have     7     meanings. Some show their parents'    8   .Girls'
names show that their parents want them to be beautiful and nice.     9     names often show their
parents want them to be strong; and    10     to the country.
( )1. A. one    
(     )2. A. family 
(     )3. A. young  
( )4. A. family 
(     )5. A. good   
(     )6. A. sad      
(     )7. A. no     
(     )8. A. work   
( )9. A. Mothers'
( )10. A. bad   
B. two     
B. middle' 
B. old     
B. given   
B. bad     
B. careful 
B. bad     
B. question
B. Fathers'
B. important        
C. three     
C. last      
C. right     
C. full           
C. interesting        
C. sorry     
C. happy     
C. hope               
C. Children's
C. favorite  
D. four          
D. given                                               
D. happy         
D. middle        
D. pen           
D. interesting   
D. special (特殊的)
D. worry         
D. Boys'         
D. young         
选择题