一、听录音，选择合适的应答句。(听两遍)
()1. A. Drive to school. B. Walk to school. C. Cut down some trees.
()2. A. Because I slipped on the banana skin and fell.
B. Because I ate a banana.
C. Because I had some bananas.
()3. A. Put the rubbish on the floor.
B. Throw rubbish in the river.
C. Keep the water clean.
()4. A. Don't worry. B. I'm sorry. C. No，thanks.
()5. A. He's making a poster.
B. We're doing a project.
C. They're making a poster.

1.B；2.A；3.C；4.B；5.C

本题为听力理解题，需依据录音内容，结合本单元“环保与文明行为”的主题，匹配语境选择对应应答句：
1. 选符合环保的出行方式，对应B；
2. 选合理的情绪触发原因，对应A；
3. 选正确的环保行为，对应C；
4. 选针对不当行为的恰当回应，对应B；
5. 选匹配问句主语的答语，对应C。