47.A.At B.On C.In D.From 查看更多

 

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She often watches TV ________ Saturday evening.

[  ]

A.

at

B.

on

C.

in

D.

from

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Helen was born          August 8th, 2000.

A.in

B.on

C.a(chǎn)t

D.From

 

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I was born _________ May 1991.

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

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I like to watch football games______ TV.

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

 

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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

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