问题 选择题

社会的文明和进步离不开化学,下列做法不值得提倡的是(  )

A.发展低碳经济,保护环境

B.广泛使用一次性塑料袋,一次性木筷以利于卫生

C.开发新能源,使用新技术节约能源

D.使用合适的添加剂让使食品更美味

答案

解;A、发展低碳经济,就是减少二氧化碳排放,这样有利于减少空气的污染,故A正确;

B、使用一次性塑料袋,由于塑料难以降解会造成白色污染,使用一次性木筷,会消耗大量的木材,不利于保护环境,故B错误;

C、开发新能源,可以减少化石燃料的使用,保护环境,有利于社会的进步和文明,故C正确;

D、在食品中添加合适的添加剂更有利于人们的需要,使人们的饮食更加丰富,有利于社会的进步和文明,故D正确.

故选:B.

完形填空
完形填空
                                                           Ain’t What I Used to Be
     It has been said, "Be contented with what you have, but never too__1__with what you are." There is
a story about a farmer who saw a tiger’s tail__2__between two large rocks.In a hurry, he seized the tail
and__3__. All of a sudden he realized he had an angry tiger by the__4__and only two__5__stood
between him and the tiger's teeth and claws! So there he remained, __6__to loosen his hold on the__7__
animal's tail in case he will surely be killed.
     A monk happened to go by and the farmer called out in__8__, "Come over here and help me.__9__
this tiger!"
     The monk said, "Oh, no. I cannot do that. I cannot take the__10__of another." Then he went on to
deliver a long__11__against killing. All the while, the farmer was holding__12__to the tail of the angry
tiger. When the monk finally finished his__13__, the farmer asked, "If you won't kill the tiger, then__14__
come and hold its tail while I kill it."
     The monk thought that perhaps, it would be all right to__15__hold the tiger's tail, so he__16__and
pulled.The farmer, however, turned and walked away down the road.
     The monk__17__after him, "Come back here and kill the tiger!"
     "Oh, no," the farmer replied. "You have__18__me!" If the largest room in the world is "room for
improvement", then it is good to leave__19__of room for change. A life of change! A life of growth! And
always leaving room for__20__.
     It's the only way to live.
( )1. A. relaxed      
( )2. A. waving      
( )3. A. cut          
( )4. A. head      
( )5. A. trees        
( )6. A. afraid      
( )7. A. wild        
( )8. A. surprise    
( )9. A. feed        
( )10. A. life        
( )11. A. message    
( )12. A. loosely    
( )13. A. blame      
( )14. A. at least    
( )15. A. basically  
( )16. A. refused    
( )17. A. ran        
( )18. A. frightened  
( )19. A. plenty      
( )20. A. rest        
B. excited  
B. dropping
B. examined
B. ear      
B. rocks    
B. read y  
B. big      
B. fear    
B. save    
B. wealth  
B. teaching
B. securely
B. work    
B. at most  
B. simply  
B. hesitated
B. laughed  
B. changed  
B. much    
B. sleep    
C. ontented  
C. urning    
C. ulled      
C. rm        
C. ills      
C. ager      
C. ngry      
C. erson      
C. atch      
C. hing      
C. rayer      
C. ightly    
C. eal        
C. fter all  
C. ardly      
C. greed      
C. omplained  
C. elped      
C. ess        
C. mprovement
D. surprised    
D. trembling    
D. appreciated  
D. tail          
D. fences        
D. anxious      
D. hungry        
D. order        
D. kill          
D. heart        
D. information  
D. closely      
D. lesson        
D. first of all  
D. mainly        
D. arranged      
D. shouted      
D. comforted    
D. more          
D. relaxation    
名词解释