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Unit 2 Repeat these three words daily：reduce，reuse andrecycle本单元的教学内容是第十二模块中的第二单元。
本单元首先通过提问的方式使学生思考自己日常生活中的行为是否环保，进而引出三个关于环保的关键词“reduce”“reuse”和“recycle”，并详细解释如何在日常生活中做到这三个方面。
【教学准备】黑板，录音机，卡片，多媒体等。
【教学过程】Step 1 Warming up1．通过上单元的学习，我们对环保有了一个初步认识，并感受到了环境问题的严重性，下面请同学们思考几个问题：Do you walk or ride a bike to school?Do you buy new clothes just because they are modern?Do you turn off the lights when you leave the room?Do you take your own bag when shopping and not ask for a plastic bag?Do you buy drinks in bottles？And what do you do with the bottles when they are empty?Do you divide the waste into things to recycle and things to throw away?2．教师再出示P99上的两幅图片，让学生看图，讨论问题：Which things are good for the environment and why?活动小结：让学生们通过思考这几个问题引入课文，打下基础。
Step 2 Presentation1．学习新单词。
(1)教师出示瓷器图片，教学生学习单词“china”，让学生跟读单词，并让学生区别“China”和“china”。
Unit 2 Repeat these three words daily：Reduce，reuse and recycle.重点单词divide v．分开plastic n．塑料adj.塑料的policy n．政策；方针reuse v．再次使用；重复利用bottle n．瓶repeat v．重说；重新做reduce v．减少；减低；缩小cloth n．布；布料ton n．吨rubber n．橡胶rapid adj.快速的；迅速的step n．步骤；措施grandson n．(外)孙子granddaughter n．(外)孙女重点短语be good for 对……有好处do with 处理；对付divide...into...把……分成……throw away 扔掉；丢弃be harmful to 对……有害as...as possible 尽可能地……change...into...把……变成……tons of 许多；很多take steps 采取措施raise money 筹款重点句子you divide the waste into things to recycle and things to throw away？你把要回收和扔掉的垃圾都分开了吗？all need a healthy environment，but we produce waste every day，and it is harmful to our environment.我们都需要一个良好的环境，但是我们每天都会制造垃圾，而这些垃圾对我们的环境有害。
means “change things into something else to be reused”．再利用是指“把一种东西变成另一种东西再次使用”。
教学难点让学生理解短文并了解如何更绿色地生活根据句意及首字母或汉语提示写出单词。
1．Supermarkets and shops in China are not allowed to offer free p__lastic__ bags.2．According to the new family planning __policy__(政策)in China，a couple can have a second child.3．When learning new information，the more you __repeat__(重说)it，the more likely you will be able to remember that information.4．If you r__educe__ something，you make it smaller in size or amount.Step 1lead-inFree talk：What kind of pollution do you know in you everyday life ?How to protect our environment? What is a green life?Step 2activity 1－31．让学生查看99页上的图片，老师询问学生每一种行为是否对环境有利并说明原因。
