3.　　　 据调查发现，大量的空气污染实际上是由于普通人导致的，而非仅仅是大工厂的责任。

It was ________out that a lot of air pollution is ________　 ________by ordinary people, not just by big factories.

2.　　　 我写信是为了表达我对于使用塑料袋购物的反对。

I am writing to _______that I’m _______　 _______plastic bags for shopping.

1.　　　 为了拯救大熊猫，我们可以做演讲，筹集资金。

To save the Giant Panda, we can_____　 _________and _______ money.

4.　　　 It is hard to see. How will small things like this help?(合并为一句)

It is hard to see How small things like this ________　 ________.

5.　　　 Can you tell me?　 What can one person do?(合并为一句)

　 Can you tell me_____ one　 person ______ do?

3.　　　 If I volunteer in a hospital, I really feel I am helping.(改为同义句)　

If I _____　 ______in a hospital, I really feel I am helping.

2.　　　 A book was left on his desk.(划线提问)

　　　　 　was ________ on his desk?

1.　　　 Have you posted the letters yet? (变被动语态)

　 Have the letters _______　 __________yet?

A: I think the environment is one of our biggest worries. You know…like the pollution in big cities, and the rainforests____1______, and um…

B: Yes, I agree, and ____2_____it is important, too. I’m just not ___3___that there is much we can do about it.

A: Oh, I ____4____. we can make_____5____, or we can help ___6___. For example, we can help to ___7___up events to teach people about ___8___ for the environment.

C: That’s right! You know, it was ____9____out that a lot of air ____10____is actually ____11____by ordinary people, not just by big factories. For example, when we use too many plastic bags for shopping, we are ____12______the environment. So, there are so many things each of us can do every day. We can ___13___down on waste as much as possible.

A: And you know what? Many things that help the environment can help us too. Using __14____energy or water saves us money. And eating more natural food, like fruit and vegetables, is much healthier than eating ____15____food like hamburgers.

B: That’s very true. Everyone should be taking care of our planet.

1.____________2.___________3.____________4.____________5.___________

6.____________7.___________8.____________9.____________10.__________

11.___________12.__________13.___________14.___________15.__________

5.The robot is _________(make)from ________(discard)tiles.

4.The wild plants are ________(danger), the government need more______(support)to save them.