1. 阅读短文，完成以下小题。

    The world is in danger. At one time there were 1,300 different plants, trees and flowers in Holland, but now only 860 remain(剩余). The others have been destroyed(破坏) by man. We are changing the earth, the air, the water and everything that grows and lives. We can't live without these things. If we continue doing like this, we will destroy ourselves.

    What will happen in the future? Perhaps it is more important to ask "What must we do now?" The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation(对自然环境的保护) is necessary. Many are helping to save our world. They plant trees and protect animals in forest. In a small town in the United States, a large group of volunteers cleaned the banks of their rivers. Young people may hear about conservation through a record called No One's Going to Change Our World. It was made by the Beatles, Cliff Richard and other singers. The money from it will help to protect wild animals.

1. （1） How many kinds of plants,trees and flowers have been destroyed by man in Holland?

   A . 1,300 B . 860 C . 440 D . 1,000
3. （2） The underlined word "them" in Paragraph 2 refers to ___.

   A . old and young people B . old people C . all the people D . young people
5. （3） Many people ___ to help to save the world.

   A . read books B . plant trees and protect animals in forest C . play games with children D . go to work by car
7. （4） We can guess that No One's Going to Change Our World is ___.

   A . a book about saving the earth B . a song calling on people to conserve nature C . a film about protecting wild animals D . a song loved by young people
9. （5） We can learn from the passage that ___.

   A . something must be done to improve our lives B . the young of today should do more to change the world C . it is men themselves that can help save the world D . to conserve wild animals can save much money