试题与答案

何谓质粒?试述其特点及其在基因工程中的作用。

题型:问答题 简答题

题目:

何谓质粒?试述其特点及其在基因工程中的作用。

答案:

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参考答案:A

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     As long as I can remember I was overweight. Actually that isn't entirely true because I can   1   remember
one summer when I was "normal". After that it seems like I was always   2  . I wanted so eagerly (急切地) to
be like all of the other kids. I would look in the mirror with my shirt off   3   cover my stomach,   4   it wasn't
there just so I could keep a positive   5   of myself.
     I can remember when my mom first found out I weighed over 200 pounds. I was 12 and   6   go to the
asthma (哮喘) doctor. When I got on the   7   it read 212 pounds. My heart   8  . I   9   to her because I didn't
want her to find out. I was  10  of being overweight and afraid of her  11 , which was a fear in my own mind
rather than a reality.
     I can remember going to the " 12 " store with my grandma so I could get a suit for my 8th grade graduation.
They  13  me at size 46. I couldn't believe it. I was used to the 40s that I had let down around my hips (臀部)
where most kids my  14  wore them. Can you  15  being a size 46 at 14 years old? It took me a week to look
myself in the face again without self-pity.
     Not only was the high weight bad for my physical health, but it was  16  to my mental health. I never  17  
how it made me shy, lonely or depressed. I kept all of these bottled up (抑制) inside because I knew that I
would just be  18  as the depressed fat kid who wanted everyone to feel  19  for him. And you know they were
right not to feel sorry for me because it was my  20  : I was lazy.
( )1. A. never         
( )2. A. overweight    
( )3. A. but           
( )4. A. managing      
( )5. A. view          
( )6. A. had to        
( )7. A. platform      
( )8. A. broke         
( )9. A. lied          
( )10. A. fond         
( )11. A. judgement    
( )12. A. cheap & easy 
( )13. A. showed       
( )14. A. sex          
( )15. A. confirm      
( )16. A. tough        
( )17. A. admitted     
( )18. A. honored      
( )19. A. sorry        
( )20. A. idea         

B. also          
B. healthy       
B. or          
B. pretending    
B. look          
B. would       
B. stairs        
B. sank          
B. replied       
B. tired         
B. comfort       
B. fast & right     
B. dressed     
B. age           
B. suggest       
B. harmful       
B. considered  
B. blamed        
B. secure        
B. decision    

C. hardly     
C. energetic  
C. then       
C. ensuring   
C. image      
C. could      
C. table      
C. pumped     
C. explained  
C. ashamed    
C. punishment    
C. big & tall 
C. counted    
C. race       
C. approve    
C. dangerous  
C. wondered   
C. adopted    
C. proud      
C. fault      

D. soon           
D. easygoing      
D. and            
D. deciding       
D. quality        
D. might          
D. scale          
D. stopped        
D. whispered      
D. accused        
D. scold          
D. good & worthy           
D. measured       
D. time           
D. imagine        
D. serious        
D. doubted        
D. regarded       
D. guilty         
D. intention      
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