三、Read and choose. 放学后，Lucy 和朋友们在教室里面做什么呢？请你读一读，选择合适的句子补全对话，将序号写在横线上。
Lucy: Hey, boys and girls! The classroom is messy. 1.
Jack: OK.
Lucy: 2.
Jack: I can clean the blackboards.
Lucy: 3.
Susan: I can sweep the floor.
Lucy: But(但是) the classroom is big. 4.
Betty: I can help Susan.
Lucy: You are so nice. The doors and windows need cleaning. 5.
Mike: Yes, of course(当然).
Lucy: Thank you, Mike. You are nice.
A. What about you, Susan?
B. What can you do, Jack?
C. Can you clean the doors and windows, Mike?
D. Who can help Susan sweep the floor?
E. Let's work together to keep the classroom clean.

1. E 2. B 3. A 4. D 5. C

四、Think and say. 你在学校的日常生活中遇到过哪些不文明行为呢？你会怎样劝诫对方呢？请你想一想，并用英语说一说吧。
自我评价
完成度：☆☆☆☆☆
自我满意度：☆☆☆☆☆

参考示例：
1. 看到同学在走廊追逐跑闹：Don't run in the hallway. It's not safe.
2. 看到同学随手扔垃圾：Don't litter. We should keep our school clean.
3. 看到同学在课桌上乱涂乱画：Don't draw on the desk. It's impolite.

本题为结合校园生活的口语运用题，贴合四年级已学的祈使句、日常行为相关词汇知识点，我们可以先梳理校园里常见的简单不文明行为，再用简单的否定祈使句给出对应的劝诫内容，表达要简单易懂，符合该年级的英语掌握水平即可。