Unit13 Section B 1a-1e教案2022-2023学年人教版九年级全册英语

九年级英语教学案例 We are trying to save the earth!Section B la-le (What do you think we should do to improve our environment?) 一、教学背景： 本案例是9A英语教材Unit 13课文“We are trying to save theearth!”拓展而成的。本文所设计的问题实际上是英语课与生物课中 的“环保”章节的整合。教师让学生列举污染源，学生讲出了很多的污染 源一一空气污染、水污染、土壤污染、噪音污染等等。实际上让学生复 习了生物课中刚学的“大气与健康”、“土壤与健康”、“水与健康”等的环 保知识。 二、活动过程： T:There is much pollution all over the world now.Can you tell me what it is? (学生很快地回答) Ss:Water pollution;Air pollution;Noise pollution:soil llution T:Do you know what causes water pollution? Ss:Factories pour waste water into rivers and lakes. T:All the factories? Ss:No T:What factories? Ss:Chemical factories,paper factories,printing and dyeing mills,plasticfactories,,ect. (在我们课本中有出现化工厂，因此学生首先想到的化工厂，在教学 过程中很多学生不会用英语说而是用中文说一些没有学过的词，如：印染 厂及塑料厂，塑料厂等。他们说中文，我就用英文帮他们解说。) T:What else can cause water pollution,too? Ss:Some people throw rubbish into rivers and lakes. T:How can we help to solve this problem? (学生们分组讨论解决办法。) Ss:We can advise the directors of these factories to stop pouring waste water into rivers and lakes. T:If they don't accept your advice,what else can we do? (学生们讨论更热烈了，他们七嘴八舌地说各式各样的方案：) Ss:1.We can write a letter to Green China about it. 2.We can also ask newspaper reporters and TV station reporters to report these factories. T:There is a paper factory in my hometown.It pours waste water into the river every day.The people in the town drink the water of the river every day.They have advise the leader to stop pouring waste water into the river many times.But he never accepts it.Can you write a letter about it to the Green China? (学生异口同声说“Ys”。由于写作太费时间，这封信作为回家作业， 请同学们写在作业本上。) T:You have told me what causes water pollution and how to solve this problem.You're very clever.Thank you very much.But can you tell me what causes air pollution? Ss:The smoke of factories,the smoke given out by ses,cars, trucks,motorbikes,ect.(空气污染在我们周围处处都是，所以学生能够 很快地回答。) T:There aren't many factories in our city,Hangzhou.But the air is not good enough.Why? Ss:Because ther