日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

Helen was born          August 8th, 2000.

A．in

B．on

C．a(chǎn)t

D．From

 

I was born _________ May 1991．

A．in                 B．on                C．a(chǎn)t                 D．from

I like to watch football games______ TV.

A．on               B．a(chǎn)t                C．in                D．from

 

In the past, man did not have to think about the protection of his environment．There were few people on the earth, and natural resources seemed to be enough.

　　 Today things are　 36　 , the world has become too crowded. We are using up our natural resources too quickly and at the same time we are polluting our environment with dangerous chemicals. If we keep doing this, human life on the earth 　 37　 survive(生存）.

　　 Everyone realizes today that if 　 38　 fishes are taken from the sea, there will soon be none left. Yet, with modern fishing ways, more and more fishes are caught. We know that if lots of trees are cut down, forests will disappear and nothing will grow on the earth. Yet we　 39　 to use bigger and more powerful machines to cut down trees.

　 We realize that if rivers 　 40　 with waste products from factories, fish will die.　 41　 , in most countries wastes are still put into rivers or into the sea.

We know, too, that if the　 42　 of the world keep on rising at the present rate, in a few years there will not be enough food. What can we do to solve these problems? If we eat 　 43　 , there will be more food for everyone．Land that is used to grow crops feeds　 five times more people than land where animals are kept．

　 Our natural resources will　 44　 longer if we learn to recycle them．

　 Finally, if we educate people to think about the problems, we shall have a better and cleaner　 45　 in the future.

36. A. common 　　B. the same 　　C. changeable 　　D. different

37. A. may not 　　B. will not 　　 C. shall not 　　　 D. could not

38. A. too many　　 B. many too　　 C. too much　　　 D. much too

39. A. continue 　　B. have 　　　C. ought 　　　D. decide

40. A. pollute　　 　B. will pollute　 　C. are polluted 　　　D. are polluting

41. A. And 　　　　B. However 　　　C. Generally 　　　D. Therefore

42. A. production 　　B. pollution 　　 C. population 　　D. Development

43. A. more vegetables and less meat　　　 B. less vegetables and more meat

　 C. more vegetable and more meat　　　 D. less vegetable and less meat

44. A. use 　　 B. stay 　　　C. keep 　　　 D. last

45. A. nature 　　　B. sea 　　 C. planet 　　　D. forest