1. What does the word“cover"” mean inParagraph 1?
It means“覆盖”.

2. Why are rainforests the lungs of the earth ?
Because the plants in the forests helpto make the air fresher and cleaner.

3. Why should we protect rainforests well ?Because they help to hold the water andkeep the water cycling. They play animportant part in controlling the climate.

4.Can you guess what the next part of the passagewill talk about ?
Yes. The next part may talk about whatwe should do to protect rainforests.

5. What should we do to protect rainforests ?
we should save paper and mustn't usethe chopsticks for only once.