问题 选择题

下列有关环境问题和能源问题的说法不正确的是(  )

A.酸雨的产生是由于大量燃烧化石燃料而造成的

B.使用乙醇汽油可以减少对空气的污染

C.鼓励农民大量使用农药和化肥,以促进农业增产丰收

D.大量使用含磷洗衣粉会导致水体富营养化

答案

A、酸雨主要由化石燃料燃烧产生的二氧化硫、氮氧化物等酸性气体形成的,故A正确;

B、乙醇燃烧可生成二氧化碳和水,二氧化碳和水不是空气污染物,所以使用乙醇汽油可以减少对空气的污染,故B正确;

C、大量使用农药和化肥,会造成环境污染,所以不可大量使用,故C错误;

D、大量使用含磷洗衣粉会导致水体富营养化,造成水体的污染,故D正确.

故选C

完形填空
完形填空。
  Daniel is an American young man. He lives on the    1    floor of a tall
building. His office is more than ten kilometers away. He must get up early 
   2    a quarter past six, and    3    home at seven. The lift takes him down. Then
he    4    to the bus stop. The stop is only two    5    metres from the building.
There he   6   No. 11 Bus. He begins     7    at eight and finishes it at five. Then
he comes back. He takes the lift up to the   8    floor. Then he     9  up the three
floors on foot, just for exercise. He cooks and eats his supper, and watches TV
until   10  . After that Daniel usually falls into bed for night.
( )1. A. fifte en      
( )2. A. in            
( )3. A. leave          
( )4. A. walk          
( )5. A. hundred        
( )6. A. drives        
( )7. A. to work        
( )8. A. twelve        
( )9. A. climb          
( )10. A. nine twentieth
B. fifteenth  
B. on        
B. left      
B. run        
B. hundreds  
B. takes      
B. works      
B. fifteen    
B. jumps      
B. nine twenty
C. fiveteen      
C. about        
C. le aves      
C. went          
C. hundreds of  
C. by            
C. work          
C. twelfth      
C. go            
C. nine-twentieth
D. fiveteenth  
D. at          
D. lives      
D. walks      
D. hundred of  
D. catch      
D. worked      
D. fifteenth  
D. climbs      
D. ninth twenty
单项选择题