约1750字。

　　Unit 2 Saving the world
　　Topic 2 None of us likes pollution
　　一、教学课题：Topic 2 None of us likes pollution
　　二、教学内容：
　　1. Master some new words and useful expressions：
　　None, rubbish, anybody, steal, in public, punish, earth, die out, sand, cut down, behavior, prevent, prevent…from…, although, cut off
　　2. Learn the infinitive pronoun and adverb:
　　3. Learn and sum up the words, phrases about pollution.
　　4. Learn to talt pollution and its harm.
　　5. Develop the students’ sense of environment protection.
　　6. Learn about some knowledge of pollution and environment.
　　三、教学目标:
　　1. Learn the usage of infinitive pronoun and adverb.
　　2. Go on learning the present perfect tense.
　　3. Learn how to asggestions and give advice.
　　4. Further learn something about pollution and realize the importance of protecting environment.
　　5. Learn and discuss the harm of pollution to the earth develop the students’ awareness of protection environment.
　　6. Learn to express the numerals.
　　7. Learn How to write an e-mail.
　　四、教学重点：
　　1. Learn the usage of infinitive pronoun and adverb.
　　2. Go on learning the present perfect tense.
　　3. Learn how to asggestions and give advice.
　　五、教学难点：
　　1. Learn the usage of infinitive pronoun and adverb.
　　2. Learn and discuss the harm of pollution to the earth develop the students’ awareness of protection environment.
　　3. Learn to express the numerals.
　　4. Learn How to write an e-mail.
　　六、教学准备： 课前让学生准备一些有关空气污染的一些图片。
　　七、教具：教学挂图, 录音机, 简笔画, 单词卡片.
　　八、课型：New lesson
　　九、教学过程：
　　活动设计 设计意图
　　空气污染的危害 通过学生对空气污染的危害的讨论，使学生认识其危害性。
　　树木的重要性 通过学生列举的形式，说说树木对人类的重要性。
　　如何节约水资源 通过学生小组汇报的形式，让学生说说节约水资源的方法。
　　电子邮件写作比赛 通过学生比赛的方式,让学生掌握e-mail的书写。
　　Section A
　　Step 1 Review
　　Ask the students to go over all kinds of pollution and the harm.
　　Talt some pollution around us.
　　Step 2 Presentation
　　The teacher is coughing heavily as he walks into the classroom. Then he says, “ There is too much heavy smoke, I can’t stand it. Smoking is really a kind of air pollution.