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The year 1970 was World Conservation(保護(hù))year．Everyone must know that the world is in 　　1　　 Here is one example of the problem．At one time there was 1300 different kinds of trees and flowers in Holland(荷蘭), 　　2　　 only 866 remains(繼續(xù)存在)．The others have been destroyed by modern man．We are 　　3　　 the earth, the air and the water, and everything that grows and lives．If we go on like this, we shall destroy 　　4　　 What will happen in the future? Perhaps it is more 　　5　　 to ask“what must we do now?”The people 　　6　　 will be living in the world tomorrow are the young of today．A lot of them know that conservation is necessary．　　7　　 are helping to save our world．Now fifteen million young people in many countries are paying attention to the relationship between man and the country 　　8　　 them．In some countries they 　　9　　 much time as“conservation volunteers(志愿者)”．They plant trees and help to 　　10　　 wild birds and animals．But everyone, not only young people, must work to save our world．

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完形填空。

　　The year 1970 was World Conservation(保護(hù))Year．Everyone must know that the world is in 　　1　　．Here is one example of the problem．At one time there was 1300 different kinds of trees and flowers in Holland(荷蘭)，　　2　　 only 866 remains(繼續(xù)存在)．The others have been destroyed by modern man．We are 　　3　　 the earth, the air and the water, and everything that grows and lives．If we go on like this, we shall destroy 　　4　　．

　　What will happen in the future?Perhaps it is more 　　5　　 to ask “ what must we do now?” The people 　　6　　 will be living in the world tomorrow are the young of today．A lot of them know that conservation is necessary．　　7　　 are helping to save our world．Now fifteen million young people in many countries are paying attention to the relationship(關(guān)系)between man and the country 　　8　　 them．In some countries they 　　9　　 much time as “conservation volunteers”．They plant trees and help to 　　10　　 wild birds and animals．

　　But everyone, not only young people, must work to save our world．

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　　In some science fiction movies, the robots are just like humans．They help with the housework and do the most 　　1　　 jobs．

　　Some scientists believe that there will be such robots in the future．　　2　　, they agree it may 　　3　　 hundreds of years．Scientists are now trying to make robots 　　4　　 people and do the same things as us．

　　But robot scientist James White 　　5　　．He thinks that it will be 　　6　　 for a robot to do the same things as a person．　　7　　, it's easy for a child to wake up and know where they are．Mr．White thinks that robots won't be able to do this．But other scientists disagree．They think that robots will be able to talk to people 　　8　　 25 to 50 years．

　　Robot scientists are not just trying to make robots look like people．For example, there are already robots 　　9　　 in factories．They do simple jobs over and over again．People would not like to do such jobs and would get bored．But robots will 　　10　　 get bored．

　　In the future, there will be more robots everywhere, and humans will have 　　11　　 work to do．New robots will have many different 　　12　　．Some will look like humans, and 　　13　　 might look like snakes．After an earthquake(地震), a snake robot could help look for people under buildings．That may not seem possible now, but computers, space rockets and even electric toothbrushes 　　14　　 impossible a hundred years ago．We never know 　　15　　 will happen in the future!

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