1970 was the World Conservation(保护)Year. Everyone must know that the world is in danger.   16    is one example of the   17  .At one time there were 1,300 different kinds of trees and flowers in Holland(荷兰),but now only 866 remain(继续存在),   18  have been destroyed by modern man. We are changing the earth, the air and the water, and    19  that grows and lives. If we go on like this , we shall destroy ourselves.

   What will happen in the future? Perhaps   20    is more important to ask “What must we do now?” The people who will be living in the world tomorrow are   21   young of today. A lot of them know that conservation is necessary. Many are helping to save   22 .

   Now fifteen million young people in many countries are studying   23   and the country around him. In some countries they spend much time as “conservation volunteers.” They plant trees and help to   24   wild birds and animals.

   But everyone,   25  young people, must work to save our world.

1.A. Here       B. It            C. He          D. There

2.A.trouble      B. question       C. problem     D. difficult

3.A.some       B. others         C. the other     D. the others

4.A.everything   B. nothing        C. something   D. all things

5.A.this         B. that           C. one        D. it

6.A.a           B. an            C. /           D. the

7.A.ourselves    B. our world       C. our lives    D. living things

8.A.man       B. men        C. a man       D. the men

9.A.find       B. protect      C. catch        D. keep

10.A.not only    B. except      C.  also       D. together with

In the past, man did not have to think about the protection of his environment. There were not many people on earth, and natural resources seemed to be unlimited.
Today, things are different. 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 continue like this, human life on earth will not survive (继续生存).
Everyone realizes today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing methods, more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the land. Yet, we continue to use bigger and more powerful machines to cut down more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. However, in most countries waste products are still put into rivers or into the sea, and there are few laws to stop this.
We know, too, that if the population 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 solve these problems?
If we eat more vegetables and less meat, we will easily get more food. Land that is used to grow crops can feed five times more people than land where animals are kept.
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 shall have a better and cleaner living place in the future.
【小题1】. If we use up our natural resources and go on              our environment, human beings will die out.
【小题2】 If we catch too many fishes from the sea,               will be left.
【小题3】. The world is becoming too                 , so we should use modern methods of
birth control to reduce the population.
【小题4】. Educate people to think about the problems so that the earth will be better and               .
【小题5】. The passage mainly tells us the importance of protecting the environment and
to solve the environmental problems.

根据所给汉语写出正确的单词
【小题1】You will ________ (吸引) by its beautiful design.
【小题2】You can experience its _____(美) and greatness through climbing it step by step.
【小题3】Beijing is in _________ (北方) China.
【小题4】The Great Wall is __________ (令人吃惊).
【小题5】Although there’s still a long way to go. We must ______ (继续) to the end.
【小题6】Please write a guide to an ______ (亚洲) country for the American exchange students.
【小题7】I’d like to go on holiday in __________ (泰国).
【小题8】It is one of the ___________ (奇迹) of the world.
【小题9】It _________ (位于) on the two sides of the River Li.
【小题10】You can ride around the city __________ (安全).

Mary parents buy everything their children want. If they go on(继续) doing so, the children won’t know that money  61  from hard work. When they grow up, they will waste(浪费) money but not  62  it.

Some parents like having birthday parties  63  their children. If they go on doing so, the children will think they  64  enjoy birthday parties every year. They may forget their parents’ birthdays and only remember  65 .

Many parents don’t let their children do chores. They think children have only one thing  66  . They should study hard  67  be good at their lessons. If parents go on doing so, children will think their parents should do  68  and won’t like cleaning the floor or the desk   69  they find a job. Parents should teach children to do chores because it can make them  70  and help them like work.

1.A. keeps  B. leaves  C. comes  D. goes

2.A. save  B. take  C. make  D. cost

3.A. with  B. without  C. to  D. for

4.A. need  B. should  C. may  D. would

5.A. theirs  B. they  C. them  D. themselves

6.A. do  B. to do  C. did  D. doing

7.A. but  B. also  C. and  D. so

8.A. chores  B. homework  C. shopping  D. reading

9.A. after  B. before  C. until  D. till

10.A. bored  B. nervous  C. sad  D. healthy

Mary parents buy everything their children want. If they go on(继续) doing so, the children won’t know that money  61  from hard work. When they grow up, they will waste(浪费) money but not  62  it.
Some parents like having birthday parties  63  their children. If they go on doing so, the children will think they  64  enjoy birthday parties every year. They may forget their parents’ birthdays and only remember  65 .
Many parents don’t let their children do chores. They think children have only one thing  66  . They should study hard  67  be good at their lessons. If parents go on doing so, children will think their parents should do  68  and won’t like cleaning the floor or the desk   69  they find a job. Parents should teach children to do chores because it can make them  70  and help them like work.