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Ability aim:
1.Make the students the real masters in class while the teacher himself acts as the director.
2.Improve the students’ reading comprehension ability and written ability
Emotion aim:
1. Arise students’ awareness of protecting our environment
2.Encourage the students to do something to save and protect the earth and our environment.
Teaching Important Points:
1.Improve the students’ listening, speaking, reading and writing skills.
2.Matery the functions in this unit.
教学难点：
1. Encourage the students to do something to save and protect the earth and our environment.
教学手段：多媒体，录音机
教学方法：多媒体教学法，创设情境法，任务型阅读法，小组合作法，分层教学法
教学过程：
Step1：warm-up:
1.游戏：whisper。借助游戏复习上几节课学过的短语和句型。
2.出示一张喘着粗气的地球的图片，it says：What’s wrong with me? I can’t breath. 并搭配两组图片，其中一组是未经污染的环境的图片，另一组是被污染的环境的图片。图片出示完之后，最后地球又问道“Who can save me?”
(设计思路：通过两组图片直观性的对比，使学生能够身临其境的意识到环境污染的严重性，以及增强环保的思想意识。最后一个问题的出示为下一环节组做个铺垫。)
3.出示问题：What should people do to save our world?及答语：People should…, 最后出示it’s our duty to protect our environment.
(设计思路：这一问题的出示及答语目的是在练习本单元的功能项目：Talking about cause, effect and purpose. 最后一句话的出示是为了导入新课。)
Step2: Lead- in: Talk about the questions in groups.
1.Do you have any ideas for reducing waste?
The students may say: Take short shower, turn off the tap, sort the garbage, make the waste into new things, reuse the plastic bags…
2. What can you do for protecting environment？
（设计思路： 学生小组讨论这一问题，既培养了学生的小组合作精神，锻炼了口语也为下一步中的听力做了语言铺垫。）
Step3: Listen to the 3nd paragraph and do the exercises:
1.What do we waste the most?
Water B. Paper C. Electricity
2.Katie doesn’t want to _______water.
3.Katie tries to ________ in many ways.