仁爱版九年级英语上册精品教案U2T1SD.doc

Unit 2 Saving the Earth Topic 1 Pollution causes too many problems. Section D The main activities are 1a和3. 本课重点活动是1a和3。 Ⅰ. Teaching aims and demands 教学目标 1. Learn some new words: create, industry, blood 2. Review direct speech and indirect speech: (1) Mrs. Zhou said that she was feeling even worse. (2) The journalist asked Mrs. Zhou if/whether she was feeling better then. (3) The journalist asked what the environment around that place was like. 3. Review some kinds of pollution and the problems caused by them. Ⅱ. Teaching aids 教具 图片/录音机/小黑板 Ⅲ. Five-finger Teaching Plan 五指教学方案 Step 1 Review 第一步 复习(时间:2分钟) 复习噪音污染，巩固Section C。 T: Is noise a kind of pollution? Ss: Yes. T: What can cause noise pollution? S1: The machines in some factories. S2: Planes. S3: Loud pop music. S4: Cars. S5: Making a loud noise in public. S6: … T: Great! Please list some other kinds of pollution around us. Ss: Air pollution, light pollution … T: OK, let’s talk about the harm that the pollution causes. Step 2 Presentation 第二步 呈现(时间:15分钟) 利用图片，设置对话，重现不同种类的污染，导入生词，呈现1a。 1. T: Many things making loud noise can cause noise pollution. What problems does noise pollution cause? S1: Noise pollution can cause hearing loss. S2: It makes people sick or become deaf. S3: It also makes people uncomfortable and unpleasant. T: Very good, too much noise can cause high blood pressure as well. (教师板书新词并释义，且要求掌握blood；理解pressure。) blood, pressure 2. T: Noise pollution is harmful to people. Do you know any other kinds of pollution? Let’s look at this picture. (教师展示图片一。) T: What kind of pollution is it? Ss: Soil pollution. T: That’s right. What causes soil pollution? S4: People use too many chemicals in their fields. T: So they destroy the soil. And it causes unhealthy food. (教师板书，释义并要求学生理解。) destroy (教师展示图片二。) T: Look at this picture. What kind of pollution is it? Ss: Litter. T: Good. Litter is everywhere. It makes our environment dirty. (教师展示图片三。)  T: (指着图片中的浓烟。)What kind of pollution is it? S