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Ability objective
To understand a conversation about pollution and a green school.
Moral objective
To learn the crisis of the earth and save the world.
【教学重点】
1. To learn and review some words and expressions：
factory, pollute, recycle, waste, enemy, crop, kill, oil, less, such as, hopeless …
2. To learn how to live a green life.
【教学方法】
PWP method, task-based method and interactive approach
【教学手段】
A tape recorder, multimedia and some pictures
【教学过程】
Teaching Procedures:
Step 1 Show learning aims
1. 掌握有关环境的词汇、短语和句子。
2. 能听懂读懂有关环保的对话内容。
3. 通过学习，提高保护环境的自觉性。
设计意图：学生在课前清楚本节课所学习的目标，更有针对性地进行学习。
Step 2 Go over the new words
出示本课词汇音标，让学生识音标拼单词。
设计意图：通过音标拼读法帮助学生复习本课词汇，为之后的课文学习打好基础。
Step 3 Lead-in
通过几大污染的图片进行导入，认读各污染英文表述。
设计意图：用污染的图片导入，以此来引出话题，并能在课的开始让学生有思考应对污染方法的措施。为之后的学习打下基础。
Step 4 Listening and complete the sentences.
Work in pairs. Look at the pictures and talk about them. Use the words in the box to help you.
factory pollute recycle waste
1. The factory is causing a lot of _____________.
2. There should be some ________ to stop the pollution.