仁爱版九年级英语优质课Unit 2 Saving the EarthTopic 1 Pollution causes too many problems. Se

1、编号：时间：2021年x月x日学海无涯页码：第5页 共5页仁爱版九年级英语优质课unit 2 saving the earthtopic 1 pollution causes too many problems. se教案the main activities are1a, 1b and3a. 本课重点活动是1a、1b和3a。. teaching aims and demands 教学目标1. learn some new words and phrases:bee, my goodness, waste, stream, breathe, be harmful to, influence2.

2、 learn some useful sentences:(1) oh, my goodness!(2) look, there are several chemical factories pouring waste water into the stream.3. learn direct speech andindirect speech:(1)kangkang said that it was a beautiful place with lots of flowers and grass.(2)kangkang said that the flowers and grass had

3、gone.4. learn and talk about different kinds of pollution:(1) air pollution makes people sick.(2) light pollution is harmful to eyes.(3) litter influences our environment. teaching aids 教具幻灯片/小黑板/录音机/图片. five-finger teaching plan 五指教学方案step 1review 第一步复习(时间:3分钟)回顾第一单元有关家乡变化的内容，复习现在完成时态，导入新课。(通过对第一单元

4、的复习，导入被污染的西山景象。)t: last unit, we have learned some changes in our hometown. can you say some?s1:the roads are wider.s2:the buildings are higher and higher.s3:the living conditions have improveds4:t: yes. many changes have happened in our hometown. lets look at the two pictures about the west hill and discuss the changes between them.step 2presentation 第二步呈现(时间:15分钟)通过比较1a的两幅图画的差异，展开对话，学习部分生词，呈现1a。1. (利用幻灯片展示1a中的两幅图，师生问答。)t:are there any differences between them?ss: yes.t:lets look at picture 1. what can you see?s1: i can see some flowers and grass.s2: i ca