问题 解答题

直径为8厘米的圆的面积与两个直径为4厘米的圆的面积之和相等.______.

答案

直径为8厘米的圆的面积:3.14×(8÷2)2=50.24(平方厘米),

两个直径为4厘米的圆的面积之和:3.14×(4÷2)2×2=25.12(平方厘米),

50.24平方厘米>25.12平方厘米,

所以“直径为8厘米的圆的面积与两个直径为4厘米的圆的面积之和相等”是错误的.

故答案为:×.

完形填空
完形填空。
     A man was driving at 70 miles in a 40-mile zone, when a   1   came behind him. Right away the man
started thinking of   2   to give.
     As the policeman came to him, he said, "Hi, officer, I guess you   3   me a little bit over the speed limit.
I was in a rush to get   4  , to be with my wife and kids. You know my younger son wasn't feeling too   5   
when I left home this morning. I'm afraid he's ill."
     The policeman said, "Well, I guess so," and started   6   something in his notebook. As minutes went by,
he could see from the side view mirror, the police-man was   7   writing. When the man was wondering why
he hadn't asked for his driving   8   so far, the policeman came to his window,   9   him a piece of paper, and
returned to his car without saying a single word. The man wondered: how much was this  10  going to be?
However, the man was  11  it was not a ticket at all and he began to  12 :
     "I had a daughter who was  13  by a speeding car at the age of six by a speeding driver. He got a fine, a
few months in  14 , and then was free, free to hug his two daughters. I only had one, and now I have to  15  
until I get to heaven before I can hug her again. I have tried to  16  that man a thousand times, and I thought
I had. Maybe I really did forgive (原谅) him. So pray (祈祷) for me, and be  17  when you drive again. My
son is all I have been left with."
     The man was completely  18  and could not move for the next few minutes. When finally he did, he drove
  19 , even a few miles  20  the speed limit, praying for forgiveness.
( )1. A. truck    
( )2. A. excuses   
( )3. A. remembered  
( )4. A. to school 
( )5. A. well      
( )6. A. writing   
( )7. A. even      
( )8. A. Insurance  
( )9. A. sent      
( )10. A. paper    
( )11. A. excited   
( )12. A. laugh    
( )13. A. hit      
( )14. A. fear      
( )15. A. wait      
( )16. A. attack    
( )17. A. honest     
( )18. A. disappointed 
( )19. A. quickly   
( )20. A. under    
B. mail car   
B. information
 B. recognized    
 B. home     
B. happy    
B. looking for 
B. really    
B. License   
B. handed    
B. note     
B. upset    
B. smile    
B. knocked     
B. trouble   
B. stay     
B. forgive   
B. thankful  
B. nervous   
B. slowly    
B. over     
C. police car 
C. advice    
C. mistook  
C. out     
C. free     
C. listing   
C. still   
C. Journal   
C. rewarded   
C. ticket    
C. angry    
C. read     
C. trapped   
C. prison    
C. remain    
C. educate   
C. patient   
C. shocked   
C. fortunately    
C. to       
D. taxi        
D. views       
D. caught      
D. to hospital 
D. bad         
D. looking up  
D. never       
D. route       
D. pushed      
D. notice      
D. surprised                  
D. think       
D. killed      
D. danger      
D. escape      
D. support     
D. careful     
D. frightened  
D. rapidly     
D. with        
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