二、完形填空 (共20小题，计20分)

阅读下面短文，从短文后所给各题的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

In the United States, it is not customary to telephone someone very early in the morning. If you telephone him early in the morning,    51   he is shaving or having breakfast, the   52    of the call shows that the matter is very important and    53    immediate attention. The same meaning   54  with telephone calls made after 11:00 pm. If someone    55   a call during sleeping hours, he considers it a matter of life and   56  . The time chosen for the call communicates its importance.

In   57  life, time plays a very important part. In the U.S.,   58    may feel they are not highly    59    if the invitation to a dinner party is extended only three or four days before the party date. But it is   60    in all countries. In other areas of the world, it may be considered   61     to make an appointment too far in    _62    because plans made for a date more than a week away may be    _63   . The meaning of time differs in different parts of the world. Thus, misunderstandings    64   between people from cultures that treat time differently. Promptness(准时) is    65   highly in American life, for example. If not prompt, they may be regarded as impolite or not fully  66  . In the U.S. no one would think of keeping a business    67   waiting for an hour, it would be too impolite. A person who is five minutes late is   68   to make a short    69   . If he is less than five minutes late, he will say a few words of  70   , though perhaps he will not complete the sentence.

51. A. and             B. but               C. while                D. for which

52. A. time          B. reason             C. person            D. place

53. A. pays             B. explains         C. declares              D. requires

54. A. comes        B. goes               C. deals                D. happens

55. A. receives       B. phones            C. sends             D. replies

56. A. help          B. trouble          C. death                D. disturbance

57. A. local         B. city                C. trade                D. social

58. A. hosts          B. guests            C. waiters            D. postmen

59. A. thought       B. regarded          C. praised             D. served

60. A. true         B. same               C. different           D. common

61. A. foolish        B. waste               C. impolite             D. impossible

62. A. future        B. delivery           C. advance            D. preparation

63. A. missing      B. changeable        C. helpless          D. forgotten

64. A. cause           B. appear             C. spread             D. transfer(转移)

65. A. valued       B. looked              C. believed             D. followed

66. A. capable      B. respectable        C. forgivable         D. believable

67. A. merchant     B. company         C. partner               D. competitor

68. A. ordered      B. expected              C. suggested          D. requested

69. A. apology      B. speech             C. fine               D. performance

70. A. regret               B. enjoyment        C. introduction         D. explanation

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 　1 ．

　 Today things are 　2 　, the world has become too 　3 　．We are using up our natural resources too quickly and at the same time we are 　4 　our environment with dangerous chemicals．If we continue to do this, human life on the earth 5 survive．

　 Everyone 　6 　today that if too many fishes are taken from the sea, there will soon be none left． Yet, with modern fishing 　7　 , more and more fishes are caught．We know that if too many trees are cut down, 　8　 will disappear and nothing will grow on the earth．Yet we __9 to use bigger and more powerful machines to 　 10　 more and more trees．

　 We realize that if rivers are polluted with waste products from factories, fish will die． 11 , in most countries wastes are 　12 　put into rivers or into the sea, and there are 　13 laws to stop this．

　 We know, too, that if the 　14 of the world continues to rise at the present rate , in a few years there will not be enough 　15 ．What can we do to solve these problems?

　 If we eat more vegetables and less 　16 ,there will be more food available for everyone．Land that is used to grow crops 　17 five times more people than land where animals are kept．

　 Our natural resources will 　 18 longer if we learn to recyclethem．

　 The world population will not rise so quickly if people use modern methods of birth 19 ．

　 Finally, if we educate people to think about the problems, we shall have a better and cleaner 　20　 in the future．

1．A．beautiful　　 B．unlimited　　 C．unusual　　　 D．valuable

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

．A．crowded 　　　 B．small 　　　　 C．dirty 　　　　 D．busy

4．A．protecting 　 B．saving 　　　 C．polluting 　　 D．fighting

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

6．A．wonders 　　　 B．realizes 　　 C．considers 　　 D．discovers

7．A．poles 　　　　 B．boats 　　　　 C．methods 　　　 D．ideas

8．A．mountains 　　 B．the sea 　　　 C．trees 　　　　 D．forests

9．A．continue 　　 B．have 　　　　 C．ought 　　　　 D．go on

10．A．grow 　　　　 B．plant 　　　　 C．save 　　　　 D．cut down

11．A．Thus 　　　　 B．However 　　　 C．Generally 　　 D．Therefore

12．A．still 　　　 B．even 　　　　 C．also 　　　　 D．certainly

13．A．many 　　　　 B．none 　　　　 C．some 　　　　 D．few

14．A．production 　 B．pollution 　　 C．population 　 D．development

15．A．houses 　　　 B．vegetables 　 C．food 　　　　 D．places

16．A．fruit 　　　 B．meat 　　　　 C．fish 　　　　 D．grain

17．A．feeds 　　　 B．increases 　　 C．supplies 　　 D．helps

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

19．A．control 　　 B．born 　　　　 C．plan 　　　　 D．pay

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

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（资源） seemed to be    26  .

     Today things are 27 , the world has become too   28   . We are using up our natural resources too quickly, and at the same time we are  29  our environment with dangerous chemicals. If we continue to do this,  human life on the earth will not   30  .

Everyone 31  today that if too many fish are taken from the sea, there will soon be none left.  Yet, with modern fishing  32   , more and more fish are caught.  We know that if too many trees are cut down,  33 will disappear and nothing will grow on the land. Yet, we  34  to use bigger and more powerful machines to 35  more and more trees.

    We realize that if rivers are polluted with waste products from factories, we will die. ___36,    in most countries wastes are 37   put into rivers or into the sea, and there are 38   laws to stop this. We know, too, that if the   39  of the world continues to rise at the present rate, in a few years there will not be enough food. What can we do to  40  these problems ?

    If we eat more vegetables and less   41 , there will be more food available for everyone.  Land that is used to grow crops   42  five times more people than land where animals are kept.  Our natural resources will  43  longer if we learn to recycle them.  The world population will not rise so quickly if people use modern methods of birth 44    .

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

1. A. beautiful      B. unlimited       C. rare       D. valuable

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

3.A. crowded       B. small        C. dirty          D. busy

4.A. protecting      B. saving       C. polluting    D. fighting

5.A. breathe        B. survive        C. drink          D. move

6.A. wonders       B. realizes     C. considers     D. discovers

7.A. poles         B. boats       C. methods        D. ideas

8.A. mountains      B. the sea       C. trees      D. forests

9.A. continue         B. stop       C. keep        D. go on

10.A. grow          B. plant          C. save         D. cut down

11.A. Thus         B. However        C. But           D. Therefore

12.A. still         B. even          C. also         D. certainly

13.A. too many       B. a few        C. some      D. few

14.A. production   B. pollution    C. population     D. pronunciation

15.A. work       B. deal         C. solve         D. serve

16.A. fruit        B. meat         C. fish         D. grain

17.A. feeds        B. increases        C. supplies         D. helps

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

19.A. control        B. born        C. plan        D. reward

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

In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural   36  seemed to be unlimited.

Today things are   37  . The world has become too   38  . We are   39  our natural resources too quickly, and at the same time we are   40  our environment with dangerous chemicals. If we   41  to do this, human life on earth will not   42 .

People realize today that if too many   43  are taken from the sea, there will soon be none left. Yet, with modern fishing   44  , more and more fish are caught.

We know that if too many trees are cut down,   45  will disappear and nothing will  46  on the land. Yet, we continue to use bigger and more powerful machines to   47  more and more trees.

We realize that if rivers are polluted with waste products from factories, we will die.   48  , in most countries waste products are still put into rivers or into the sea, and there are few laws to   49  this.

We also know that if the   50  of the world continues to rise at the present rate, in a few years, there won't be enough food. What can we do to solve the   51  ? If we eat more vegetables and less   52  , there will be more food available for everyone. Land that is used to grow crops feeds five times more people than land where animals are kept.

Our natural resources will   53   longer if we learn to recycle them. The world population will not   54  so quickly if people use modern methods of birth control.

Finally, if we   55  people to think about the problems we shall have a better and cleaner planet in the future.

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   1  .

Today things are   2  . The world has become too   3  . We are using up our natural resources too quickly, and at the same time we are   4  our environment with dangerous chemicals. If we   5  to do this, human life on the earth will not survive.

Everyone   6  today that if too many fish are taken from the sea, there will soon be none left. Yes, with modern fishing   7  , more and more fish are caught. We know that if too many trees are cut down,  8  will disappear and nothing will grow on the land. Yet we  9  to use bigger and more powerful machines to   10  more and more trees.

We realize that if rivers are polluted with waste products from factories, we will die.  11  , in most countries waste products are   12  put into rivers or into the sea, and there are   13  laws to stop this.

We know, too, that if the   14  of the world continues to rise at the present rate, in a few years, there will not be enough   15  . What can we do to solve these problems?

If we eat more vegetables and less   16  , there will be more food available for everyone. Land that is used to grow crops   17  five times more people than land where animals are kept.

Our natural resources will   18  longer if we learn to recycle them.

The world population will not rise so quickly if people use modern methods of birth   19  .

Finally, if we educate people to think about the problems, we shall have a better and cleaner   20  in the future.

1．A．beautiful                B．unlimited             C．rare                    D．valuable

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

3．A．crowded               B．small                   C．dirty                   D．busy

4．A．protecting             B．saving                 C．polluting              D．fighting

5．A．try                        B．continue              C．decide                 D．have

6．A．wonders               B．realizes                C．considers            D．discovers

7．A．poles                    B．boats                   C．methods              D．ideas

8．A．mountains             B．the sea                C．trees                   D．forests

9．A．continue                B．have                    C．ought                  D． stop

10．A．grow                  B．plant                   C．save                    D．cut down

11．A．Thus                   B．However             C．Generally speaking   D．Therefore

12．A．still                     B．even                    C．also                    D．certainly

14．A．production           B．pollution              C．population           D．revolution

15．A．houses                B．vegetables            C．food                   D．lives

16．A．fruit                    B．meat                   C．fish                     D．grain

17．A．feeds                  B．increases             C．supplies               D．helps

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

19．A．control                B．born                    C．plan                    D．reward

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