问题 问答题

论述人与环境的关系。

答案

参考答案:人与环境的关系密切,这种密切的关系一方面指的是人类受环境的制约;另一方面,则表明人类有能力改变环境。
(1)人口增长对土地资源的压力,使人均耕地不断减少。
(2)人口对森林资源的影响:随着人口的剧增,森林面积急剧减少。
(3)人口对土地资源的影响:人口剧增造成了粮食的短缺,使土地资源严重退化,大量土地沙漠化。
(4)人口对能源的影响:使能源紧张。
(5)人口对物种的影响:使物种减少。
(6)人口对城市环境的影响:造成城市环境污染加剧。
(7)人口对水资源的影响:人口剧增对水的需求量也剧增,但水是不可再生资源,必然会导致水资源短缺。
总之,地球所以能产生生物,特别是产生人类,是因为地球有一个适合生物生存的环境。但地球上的陆地和空间毕竟是有限的,不能总是无节制地容纳不断增长的人口。因此,有计划地严格控制人类自身的生产,是符合人类的根本利益和长远利益的。

问答题 简答题
完形填空
完形填空
     There are many different ways of seeing a town for the first time. One of them is to walk around it,
guidebook in hand. Of course, we may __1__ with our guidebooks the history and __2__developments
of a town and get to know them. But then, if we __3__ our time and stay in a town for a while, we may get
to know it better. When we __4__ it as a whole, we begin to have some __5__, which even the best
guidebooks do not answer. Why is the town just like this, this shape, this plan, this size? Why do its
streets __6__in this particular way, and not in any __7__ way?
     Here even the best guidebook __8__ us. One can't find in it the information about how a town has
developed to the __9__ appearance. It may not describe the original __10__ of a town. However, one
may get some ideas of what it __11__look like by walking around the town. One can also imagine how
the town was first planned and built. Then one can learn more about in what direction the town __12__ to
develop. 
     What is the __13__ of studying towns in this way? For me, it is __14__ that one gets a greater depth
of pleasure by visiting and seeing a town with one's own eyes. A personal visit to a town may help one
better understand why it is attractive than just reading about it in a __15__.
( )1. A. write  
( )2. A. swift  
( )3. A. take  
( )4. A. look after
( )5. A. ideas  
( )6. A. open  
( )7. A. one  
( )8. A. fails  
( )9. A. old  
( )10. A. capital  
( )11. A. used to  
( )12. A. stops    
( )13. A. point  
( )14. A. simply  
( )15. A. magazine  
B. tell      
B. similar  
B. treasure  
B. look at  
B. opinions  
B. run      
B. more      
B. tricks    
B. normal    
B. meaning  
B. seemed to
B. appears  
B. view      
B. nearly    
B. guide-book
C. study  
C. separate  
C. put  
C. look for  
C. feelings
C. begin  
C. other  
C. helps  
C. first  
C. design  
C. had to
C. starts      
C. problem  
C. generally  
C. newspaper  
D.  remember    
D.  special    
D.  limit      
D.  look up    
D.  questions  
D.  move        
D.  such        
D.  satisfies  
D.  present    
D.  change      
D.  happened to
D.  continues  
D.  difficulty  
D.  hardly      
D.  fiction