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问题 单项选择题

五只相套接的彩色圆环是现代奥林匹克运动会最显著的标志，象征五大洲运动员的友谊和团结。奥运会五环旗首次出现在哪个城市？（）

A.巴黎

B.伦敦

C.华盛顿

D.雅典

答案

参考答案：A

解析：五环旗是1913年根据当时国际奥委会 * * 顾拜旦的建议设计的，并在1914年法国巴黎举行的奥林匹克代表大会上首次使用。故选A。

完形填空
完型填空。
     Our dog named Zip always brings things home for us to keep! Many of
them were toy bears, lambs and ducks. We never could     1     the owners.
     One day Dad was     2     the newspaper, "Listen to this, everybody," he
said. "To the person who took a Teddy bear from a child's wagon(推车)
please bring back the toy bear. Our two-year-old son is very     3     ."
     "Zip does something     4     again. He must have taken others' toys." said
Anita.
     "Yes," said Dad, "Well, the paper gives the     5     . This time I can take
back Zip's     6    ."
     "Do you think it is    7     to do that?" Mom asked. "If you tell others about Zip, who will believe you?"
     "I will     8     until dark. Then I'll just put the Teddy bear at the front door and walk away.    9 will see me."
     Dad's idea     10     worked. He put Teddy at the gate. He turned to walk
away and knocked into a chair!
     Dad started to     11     . But he didn't get very far. The gate light came on. A man opened the door."    12     is over here?" he called out.
     Dad kept silent and didn't even try to     13     . He just wanted to get away. Then the man saw     14    .
     He shouted after Dad, "How    15     you are!" he said, "Taking toys from
babies!"
( ) 1.A. pay  
( ) 2.A. buying
( ) 3.A. sad  
( ) 4.A. wrong
( ) 5.A. picture
( ) 6.A. food  
( ) 7.A. wrong
( ) 8.A. speak
( ) 9.A. Someone
( ) 10.A. never
( ) 11.A. speak
( ) 12.A. What
( ) 13.A. help  
( ) 14.A. the bear
( ) 15.A. angry 		B. agree  
B. reading
B. surprised
B. important
B. story  
B. name    
B. clever  
B. wait    
B. Everyone
B. always  
B. drive  
B. Who     
B. answer  
B. Zip     
B. kind    		C. find        
C. writing    
C. happy      
C. interesting
C. address    
C. idea        
C. dangerous  
C. watch      
C. No one      
C. already    
C. run        
C. How         
C. listen      
C. nothing    
C. bad        		D. choose      
D. sending    
D. afraid      
D. worried    
D. time        
D. present    
D. free        
D. think      
D. Anyone      
D. almost      
D. cry        
D. Which      
D. knock      
D. the baby    
D. sorry      


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单项选择题

关于DNA指导RNA合成的叙述中哪一项是错误的（）

A.只有DNA存在时，RNA聚合酶才能催化生成磷酸二酯键

B.转录过程中RNA需要引物

C.大多数情况下只有一股DNA作为RNA合成的模板

D.RNA链的合成方向是5′→3′端

E.合成的RNA链没有环状的
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