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完型填空。      Throughout history man has ha

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完型填空。
     Throughout history man has had to accept the fact that all living things must die. But people now live
longer than they   1  .Yet, all living things still show the   2   of aging, which will eventually    3   death.    
     Aging is not a disease, but as a person passes maturity (成熟期), the cells of the body and the    3   
they form do not function as well as they    5   in childhood and teenage years. The body provides less    6  against disease and is more   7   to have an accident.
     A number of related causes may    8   to aging. Some cells of the body have a fairly long life, but they
are not    9   when they die. As a person ages,    10   of brain cells and muscle cells decreases.    11   body
cells die and are replaced by new cells. In an aging person the    12   cells may not be as workable or as
capable    13   growth as those of a young person.
     Another    14   in aging may be changes within the cells    15  . Some of the protein chemicals in cells are known    16   with age and become less elastic (有弹性). This is why the skin of old people wrinkles and
  17  . This is also the reason why old people    18   in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and    19   information
that the cells need. Aging may affect this    20   and change the informationcarrying molecules so that they
do not transmit the information as well.
(     )1．A.would          
(     )2．A.function        
(     )3．A.lead in        
(     )4．A.hands          
(     )5．A.do              
(     )6．A.energy          
(     )7．A.likely          
(     )8．A.attend          
(     )9．A.replaced        
(     )10．A.a number      
(     )11．A. The others    
(     )12．A.old            
(     )13．A.to            
(     )14．A.factor        
(     )15．A.for themselves
(     )16．A.change        
(     )17．A.hangs loose    
(     )18．A.increase      
(     )19．A.pass away      
(     )20．A.improvement    		 B．be used to        
B．effect            
B．give in          
B．feet              
B．has done          
B．protection        
B．probable          
B．contribute        
B．rebuilt          
B．the amount        
B．Others            
B．left              
B．for              
B．effect            
B．of themselves    
B．to have changed  
B．hangs loosely    
B．shrink            
B．pass by          
B．procession        		 C．used to          
C．affect            
C．run into          
C．heart            
C．did              
C．vigor            
C．possible          
C．add              
C．recovered        
C．the number        
C．Another          
C．new              
C．of                
C．reason            
C．themselves        
C．to change        
C．is hanging loosely
C．lengthen          
C．pass off          
C．approach          		 D．used            
D．sign            
D．result in        
D．organs        &nb
完型填空。      Throughout history man has ha
1-5 CBDDC  6-10 BABAC  11-15 DCCAC  16-20 CABDD
阅读理解.     Throughout history,people had dream 完形填空。      Hello! __ 1__ name is Jack Ha 完型填空七下英语     完形填空。      One day a rich man met Tom. T 英语填空,      完形填空          Mr and 完形填空。      The Great Wall of China has a 完形填空,    完型填空  完型填空,  求助英语完型填空   综合填空。     Reading newspapers has becoming an