1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
Teaching Procedures：
Pre-task preparations
1. Greetings.
2. Revision---read and complete.
Air has no ______ or _______.
Air has no _______ or _______.
We cannot ____ it, but we can ____ it.
Look at the _____ and the ______.
Look at the _____ and the _____.
They all need it too.
It keeps them _____ in the sky.
While-task procedures
Look and learn.
Look at the pictures and learn the new words.
Listen and answer
1).What’s the matter with Kitty?
2).What hurts her eyes?
3). Where is the smoke from?
?Enjoy the flah
1).See the flash.
2).Read and repeat the dialog.
3).Role-play.
Post-task activities
Look and think.
Think and discuss; How can we make the air clean?
Homework:1.Copy the new words; 2.Listen,read and recite the dialog.
反思：大部分学生能掌握本课的核心词汇和核心句型，小组讨论，谈一谈对空气及空气污染的认识，学生积极踊跃，大胆表达，教学效果较好。