一、上午8点30分，讲座准时开始。舒老师走上讲台，由个例展开迅速切入正题。从方框中选择合适的内容填空，补全舒老师的部分发言。
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1. There are many bikes and e-bikes at the school .
2. Sometimes we can see some fruit on the floor in our classroom.
3. It's a bad habit to rubbish here and there.
4. I hope our city be cleaner and more beautiful.
5. We can take part in more voluntary activities in the public areas.

二、接着，本次讲座的嘉宾——市民代表李先生上台，分享了他参与志愿活动的经历。从方框中选择合适的句子，补全李先生与舒老师的对话。（有两项多余）
A. In cities, pollution is mainly from cars and household waste(生活垃圾).
B. How many members are there in your team?
C. It's good for your health and the environment, isn't it?
D. How did you come up with the idea?
E. What about rubbish pollution?
F. We don't want it to be polluted.
G. After dinner every evening, we take a long walk along the side of the river.
Mr Shu: Good morning, Mr Li. Tell us what you do, please.
Mr Li: Good morning! I help collect rubbish along the Star River with other members in our volunteer team.
Mr Shu: That's great. 1.
Mr Li: As we all know, the Star River is our mother river. It provides us with clear water. 2.
Mr Shu: I agree with you. 3.
Mr Li: Um ... 10 men and 12 women. We work together happily.
Mr Shu: When do you do this work?
Mr Li: We live near the river. 4. And when we see the rubbish, we collect it. We're happy to do this.
Mr Shu: 5. Mr Li: Yeah, I think so.