Directions: For each blank in the following passage there are words or expressions marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.
In the past, man did not have to think about the protection of the environment. There were few people on the earth, and natural resources seemed to be 36 ___________ .
Today things are different, the world has become too 37________. We’re using up our natural resources too quickly, and at the same time we are 38__________our environment with dangerous chemicals. If we continue to do this, human life on the earth will not survive.
Everyone realizes today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishingmethods, more and more fish are caught. We know that if too many 39_____ are cut down, forests will disappear and nothing will grow on the land. Yet, we 40______ to use bigger and more powerful machines to 41_________more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. 42_____, in most countries wastes are still put into rivers or into the sea, and there are 43__________laws to stop this.
We know, too, that if the 44_______ of the world continues to rise at the present rate, in a few years there will not be enoughfood. 45________ can we deal with these problems ?
If we eat more vegetables and lessmeat, there will be more food available for everyone. Land that is used to grow cropson feeds five times more people than land 46_____ animals are kept. Our natural resources will last longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth control. Finally, if we educate people to think about the problems, we 47_____ have a better and clearer planet in the future.

【小题11】

A．that B．which C．where D．what

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____36____ .

Today things are___37_____, the world has become too___38____ . We are using up our natural resources too quickly, and at the same time we are___39____ our environment with dangerous chemicals. If we continue to do this, human life on the earth ___40____survive.

Everyone___41_____ today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing__42_____ , more and more fish are caught. We know that if too many trees are cut down, ___43____will disappear and nothing will grow on the land. Yet, we ___44_____to use bigger and more powerful machines to __45____more and more trees.

We realize that if rivers are polluted with waste products from factories, we will die.___46_____, in most countries wastes are ___47______put into rivers or into the sea, and there are _48_____laws to stop this.

We know, too, that if the___49____ of the world continues to rise at the present rate, in a few years, there will not be enough___50_____. What can we do to solve these problems ?

It we eat more vegetables and less___51____, there will be more food available for everyone. Land that is used to grow crops __52_____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 rise so quickly if people use modern methods of birth__54_______ .

Finally, if we educate people to think about the problems, we shall have a better and clearer ___55____in the future.

1.                A．beautiful        B．unlimited （无限的） 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．may not        B．will not         C．shall not  D．could not

6.                A．wonders        B．realizes         C．consider  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．will go on

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

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

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

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

完形填空

　　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 __1__ 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 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,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 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.

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