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　　1970 was the World Conservation(保護)Year．Everyone must know that the world is in danger．　　1　　 is one example of the 　　2　　．At one time there were 1,300 different kinds of trees and flowers in Holland(荷蘭),but now only 866 remain(繼續存在),　　3　　 have been destroyed by modern man．We are changing the earth, the air and the water, and 　　4　　 that grows and lives．If we go on like this , we shall destroy ourselves．

　　What will happen in the future? Perhaps 　　5　　　is more important to ask “What must we do now?” The people who will be living in the world tomorrow are 　　6　　 young of today．A lot of them know that conservation is necessary．Many are helping to save 　　7　　．

　　Now fifteen million young people in many countries are studying 　　8　　 and the country around him．In some countries they spend much time as “conservation volunteers．” They plant trees and help to 　　9　　 wild birds and animals．

　　But everyone, 　　10　　 young people, must work to save our world．

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完形填空。

　　The year 1970 　　1　　 World Conservation Year．Everyone must know that the world is in danger．Here is one example of the 　　2　　．At one time there were 1,300 different kinds of trees and flowers in Holland, but only 866 remains．Some have been destroyed by modern man．We are changing the earth, the air and the water, and 　　3　　 that grows and lives．If we go on 　　4　　 this, we shall destroy ourselves．

　　What will happen in the future? Perhaps it is 　　5　　 to ask “what must we do now?” The people who will be living in the world tomorrow are the young of today．A lot of them know that conversation is necessary．Many are helping to save our world．Now fifteen million young people in many countries are 　　6　　 attention to the relationship 　　7　　 men and the country around them．In some countries, they 　　8　　 much time as “conservation volunteers”．They plant trees and help to protect wild birds and animals．

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