问题 改错题

下面语段划线处都有语病,请根据提示加以改正。

       与发达地区相比,①重庆中小学生存在矮个多、胖墩多、近视眼多等。挑食、偏食,②形成了一部分学生营养摄入不足,不利于长高。而过多的食用高油、高热和高糖食品,会让无法消耗的能量转化成脂肪,积蓄在体内,形成“胖墩”身材。学生近视眼越来越多,一方面与他们的胡萝卜素、维生素等缺乏有关,另一方面,课业负担和娱乐负担造成用眼过度,③影响危害了视力健康。④有关部门已专门对这一现状进行研究和调查,并寻找相应对策。

(1)第①处成分残缺,应在句末添加                 

(2)第②处搭配不当,应将                 改为                 

(3)第③处词语赘余,应删去                    

(4)第④处语序不当,应调整为                      

答案

(1)特征

(2)应将“形成”改为“导致”

(3)影响

(4)调查和研究

完形填空
完形填空。
     What is a clone? A clone is a copy-a genetic (基因的) copy. Genes (基因) are the in-structions for
life. They    1    a cell what to do and how to do it. Genes make    2    plant or animal different and unique.
A clone has the same genes    3    the original organism (生物体).
      Cloning is not new.    4    have been cloned for centuries. Many new plants are grown from cuttings
(插枝) from the original plants. One benefit of cloning is that we can make many copies of the best and
healthiest plants. 
      It's     5    more difficult to clone animals than plants. In 1997 scientists succeeded in    6    a sheep.
The creation of Dolly, the Cloned sheep, caused great attention around the world in no time. Scientists had
tried to clone other animals like frogs before that, but they failed Frogs died as tadpoles (蝌蚪), never
living    7    to become adult frogs.
      It may soon be    8    to clone many types of animals. Will we also    9    clone human organs (器官),
or even a whole human being? Maybe now the question is not whether we can clone humans, but   10   
should we clone humans?
( )1.A.keep       
( )2.A.each       
( )3.A.for        
( )4.A.Plants    
( )5.A.many       
( )6.A.clones     
( )7.A.long enough
( )8.A.helpful    
( )9.A.must       
( )10.A.except     
B.make            
B.neither       
B.from          
B.Animals      
B.much            
B.cloning       
B.short enough 
B.difficult      
B.should        
B.except for 
C.tell               
C.both         
C.with           
C.Life         
C.few               
C.cloned       
C.enough long  
C.possible        
C.can            
C.instead  
D.let                   
D.none           
D.as                  
D.Humans         
D.little                 
D.to clone          
D.enough short      
D.new                
D.be able to          
D.instead of 
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