题目内容：

完形填空

It’s very important that we all recycle.In nature,everything_____again.For example,when an animal dies,it becomes____animal’s food.Nothing is wasted.But humans have created things like plastic bags which can’t be____down by nature.Our_____kills animals and pollutes water and soil_____we continue making too much rubbish,the problem will only get worse.If nature can’t reuse the rubbish,we must recycle_____We should clean up the rubbish we’ve made because nature can’t.

Recycling is also the right thing to do for another reason.The earth is rich in natural materials like water and trees,_____these materials are not endless(无尽的).We use up our natural materials_____faster than the earth is able to reproduce(再生)them.For example,each year we cut_____more than 6,000 square miles of forest.But it takes an average of 25 years for a new tree_____

Recycling can help us save the earth,so let’s take action right now.

1.A.use B.is used C.used D.uses

2.A.other B.others C.the other D.another

3.A.lain B.broken C.written D.put

4.A.rubbish B.nature C.material D.bags

5.A.When B.Why C.If D.Unless

6.A.them B.it C.itself D.we

7.A.but B.so C.and D.or

8.A.very B.more C.much D.many

9.A.out B.down C.up D.off

10.A.grows B.growing C.to grow D.grown