Question

　　Recycling is nothing new.Water，paper，used bags，and many other things have been recycled and used again in many different ways for many years.It is only the world that is new.But now that natural materials are becoming more difficult to find，many countries are experimenting with other ways of keeping materials.

　　In the U.S.A.，a publishing film has brought out several books on pollution and waste.The books are made of recycled paper — that has used as papers before.In this way，several thousand trees are saved.If those books are multiplied(大大增加) by a hundred，or even a thousand，the whole forest will be saved.One school boy has got the conclusion that if every school book in the U.S.A.was recycled，there would be enough paper for fifty packets of peanuts(花生)，and these peanuts are enough for every child in the world for a period of time.

　　Several firms are experimenting with making containers(集装箱) from hard plastic which，when the containers are finished，can be used as building materials，a kind of brick.If mountains of empty cans all over the world can be changed into building materials that are not too expensive，that，is a new source of material.

　　根据短文内容，完成下列各题。

　　1.Recycling is to use materials for the _______ time.

　　2.Why are people looking for ways of making use of the waste materials?

　　Because it is _______ to find _______ materials

　　3.What is the result of using the recycled paper?

　　A large number of _______ are saved.

　　4.What can be used to building houses according to the passage?

　　It's _______ _______ that containers are made of.

　　5.What can be used as building materials besides containers?

　　They're _______ _______ all over the world.

Answer 1

　　1.second 回收再利用就是对物质材料的第二次利用。

　　2.difficult/hard;natural 根据短文中 ...natural materials are becoming more difficult to find，可知。

　　3.trees 由文章中 In this way，several thousand trees are saved.可知答案。

　　4.hard plastic 由文章中 Several firms ale experimenting with making containers(集装箱) from hard plastic... 可知答案。

      5．empty cans 根据短文最后一句可知答案。