约1700字。

　　仁爱版九年级英语上册Unit 2
　　Topic 2  All these problems are very serious.
　　Section D
　　The main activities are 1a和4. 本课重点活动是1a和4。
　　Ⅰ. Teaching aims and demands 教学目标
　　1. Learn a new phrase:
　　tap
　　2. Learn some useful sentences:
　　(1) This harms the environment …
　　(2) At the same time, dealing with …
　　(3) Of all the garbage, about 35 percent can be recycled while the rest can’t.
　　(4) How shall we deal with it?
　　3. Review the indefinite pronoun and adverb:
　　(1) None of us likes pollution.
　　(2) Don’t spit anywhere in public.
　　(3) Everyone should care for wild animals and plant more trees.
　　(4) We should do everything we can to protect the environment.
　　4. Talt the harm of rubbish.
　　5. Go on developing the students’ sense of environmental protection.
　　Ⅱ. Teaching aids 教具
　　图片/录音机/小黑板
　　Ⅲ. Five-finger Teaching Plan
　　Step 1  Review
　　检查作业，然后通过师生对话，复习Section C的内容，为学习新词汇作准备。
　　1. (复习讨论Section C的综合探究活动，教师作总结。)
　　2. (教师通过复习上一课的内容为学习新词汇做准备。)
　　T:  After learning Section C, we have known that many kinds of pollution affect our environment. How do factories affect our environment?
　　S1: They / Factories have polluted the land and the water.
　　S2: Factories make some rivers and lakes dead now.
　　S3: …
　　T:  Very good. How do cars and buses affect our environment?
　　S4: They have polluted the air.
　　S5: They have caused noise pollution.
　　S6: …
　　T: How does cutting down too many trees affect our environment?