单元主题写作
主题分析
本单元通过跟着 Bobby 改正乱扔香蕉皮的错误，和苏海、刘涛一起“拾荒慢跑”守护城市整洁，让我们学会了描述文明与不文明行为，更懂得保护环境要从小事做起：不乱扔垃圾、主动清理杂物，用行动让家园更加干净美好。请谈谈你将如何为保持城市/校园整洁贡献自己的一份力量。
思路点拨

范文赏析
Keep our city clean
Our city is beautiful, but sometimes it is dirty. Rubbish makes the streets messy and dirty. We should work hard to keep our city clean.（开头介绍城市现状，引出写作主题）
What will we do to protect our city? We will put rubbish into the bins. We will not throw rubbish anywhere. We can walk or ride bikes to school. We will plant more trees. They will keep the air fresh. In our free time, we can help clean parks.（中间使用 will 介绍多种保护环境的做法）
Everyone should work together. I believe our city will become clean and beautiful in the future.（结尾发出倡议，表达对未来环境的美好期盼）
小试身手
Mike 准备以“Keep our school clean”为题在班上演讲，请你从日常教室卫生，校园清洁维持等方面帮他用英文写一篇演讲稿。
要求：
1. 不少于5句话；
2. 语句通顺，意思清楚。
Keep our school clean

单元主题写作
Keep our school clean
Dear teachers and classmates,
Our school is big and beautiful. We all like our school. We need to do something to keep our school clean.
We will put rubbish in the bins. We will put our things in order. We will clean the doors and windows.
If everyone works together, our school will be clean and beautiful.
Thank you!

【分析】
本题要求以“Keep our school clean”为题写英语演讲稿，需遵循思维导图的结构：开头点明校园现状并引出保持整洁的必要性，中间介绍校园清洁的具体行动，结尾表达对校园的美好憧憬并发出倡议。写作时要注意演讲稿格式，语句通顺，不少于5句话，结合校园日常卫生与清洁维持的内容。
【解析】
1. 开头：先写演讲稿称呼，点明校园特点，说明需要保持整洁的原因；
2. 中间：列举校园清洁的具体行动，如将垃圾放入垃圾桶、整理物品、打扫门窗等；
3. 结尾：发出倡议，表达对校园未来的期望，最后致谢，符合演讲稿格式要求。
【答案】
Keep our school clean
Dear teachers and classmates,
Our school is big and beautiful. We all like our school. We need to do something to keep our school clean.
We will put rubbish in the bins. We will put our things in order. We will clean the doors and windows.
If everyone works together, our school will be clean and beautiful.
Thank you!
【知识点】
英语单元写作、演讲稿写作、校园环保话题
【点评】
该写作紧扣主题，结构清晰，符合演讲稿格式，内容具体贴合校园实际，语句通顺，满足题目要求，是一篇符合标准的单元主题写作。
【难度系数】
0.5