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1、Section D . Material analysis 本课是第二单元第一话题的第四课时，主活动是 1a 和 Project。通过 Grammar 来巩固总结一般过去时和现在完成时的区别，通过 Functions 来复习重要的表达法。1a 按照“总分总”的模式分别介绍了各种污染的成因及危害。通过完成文章后的表格，训练和提 高学生获取信息的能力。教师还可以利用表格内容，引导学生整合信息复述课文，巩固课文内容。1b 属于同义转换练习。Project 部 分培养学生动手动脑的能力，让学生运用收集的信息和所学知识，通过墙报的形式来宣传污染带来的危害，让更多的人关注环境污 染，树立环保意识，增强人们
2、的忧患意识和社会责任感。 .Teaching aims 1.Knowledge aims： 掌握本课的重点词汇和短语。 总结一般过去时和现在完成时的区别；复习本话题的重点表达法。 2.Skill aims: 能读懂与环境污染问题有关的文章。 能根据关键词复述课文。 3. Emotional aims: (optional) 通过了解各种污染带来的危害，帮助学生树立环保意识，爱护环境，保护地球。 4.Culture awareness: (optional) 通过学习，引导学生了解环境污染对人类健康有巨大的危害，不同种类的污染体现在不同的方面。 . The key points and diff
3、icult points 1. Key points: Words and phrases: coal, create, blood, planet, in many ways, with the development of industry, high blood pressure Grammar: the differences between the simple past and present perfect 2. Difficult points： 能根据关键词复述课文。 能够进行同义句转换，用不同的短语表达相同的意思。 . Learning strategies 能自己归纳总结
4、所学的知识。 学会利用关键词复述课文。 学会运用所学知识，宣传生活中的常识。 . Teaching aids 与污染相关的图片；词性辨析的试题；幻灯片。 . Teaching procedures Stage (time period) Interaction patterns Teacher activityStudent activityRemarks 1 Getting students ready for learning （5 mins) Class activity Step 1: Let the Ss fill in the blanks with the correct for
5、ms of the given words. T: Hello, boys and girls. Please fill in the blanks with the correct forms of the given words. 1）The man working in a _ factory goes deaf because of the loud _.(noise / noisy) 2）Burning coal can _ the air, and we call it air _. (pollute / pollution) 3）Using too many chemicals
6、in the land can cause _food and its bad for peoples _. (health / healthy / unhealthy) 4）Strong light is _ to our eyes and does great _ our body. (harm / harmful) 5）Mrs. Zhou can hardly _ because of the bad air. And she often coughs day and night, out of _. Fill in the blanks with the correct forms o
7、f the given words. 学生在做“用所给单词的 适当形式填空”这种题型 时，稍有困难。因此，教 师要进行引导。先通过二 选一的方式简化题目难度， 再让学生体会到词性不同， 用法也不同。 (breath / breathe) T: OK, now lets check the answer.S1: noisy and noise S2: pollute and pollution S3: unhealthy and health S4: harmful and harm S5: breathe and breath 2 Lead-in (3 mins) Group work Let
8、 the Ss list what they have learnt in this topic with their group members, and then finish Grammar and Functions. T: Wonderful! Now list what you have learnt in this topic with your group members, and then finish the Grammar and Functions. T: If you have finished, hands up to let me know. OK, lets c
9、heck the answers. List what they have learnt in this topic with their group members, then finish Grammar and Functions. 3 Pre-reading (5 mins) Class activity Check the Ss HMK and encourage the Ss to read their passages about pollution to the class. T: Please take out your homework. I have checked yo
10、ur work. Most of you did very well. But a few students have to improve it. I believe you will be better next time. Now I want some Ss to share your work with us. Any volunteers? S1: Water pollution is very serious and we can find it almost everywhere Read out their passages to the class. 4 While-rea
11、ding (10 mins) Individual workStep 1: Let the Ss scan 1a and find the main idea of this passage. T: You are right. Pollution is harmful to peoples health. Now, please read 1a as quickly as you can and try to get the main idea of this passage. T: OK. What is the passage about? Read 1a quickly and fin
12、d the main idea of this passage. Ss: The harm of different pollutions. 建议：阅读部分可以采取 两个步骤，一是泛读，二 是精读。泛读让学生了解 文章大意，精读可以让学 生注意段落、语句之间的 逻辑关系，培养学生写作 思维能力。 Pair workStep 2: Let the Ss read the passage again and work in pairs to complete the table on Page 34. Then check the answers in pairs. T: Yes, please
13、read the passage carefully and complete the table on Page 34. You can discuss the answers with your partner. T: Lets check the answers together. Read the passage again and work in pairs to complete the table on Page 34. S1: gas, oil and coal S2: sore eyes and breathing problems S3: litter everywhere
14、, use too many chemicals S4 5 Post-reading (10 mins) Individual work Step 1: Let the Ss read the article sentence by sentence and find the key points they think. Write them down on the Bb and encourage the Ss to explain them. T: Now read the article sentence by sentence, circle the key phrases you t
15、hink and try to explain them in your own words. Read the article, circle the key points and try to explain them. 做完阅读练习后，让学生 自己划出文章中重要的词 组、连词，并自己做出解 释。这样可以帮助他们更 好的理解所读和所学，并 且利于复述课文。复述时 可以选择用原文章中的短 Individual work T: Volunteers? Step 2: Let the Ss finish 1b. T: Very good. You learnt so well. Now plea
16、se finish 1b yourselves. T: OK, lets check your answers together. S1: are harmful S2: hearing loss S3: go, because of T: Well done! S1: “including” means “包括” S2: “with the increase in population” means “随着人口 的增长” S3: Finish 1b according to the given sentences. S1:are harmful S2:hearing loss S3:go, because of 语，也鼓励学生自由发挥， 进行知识的再巩固。 6 Project (12 mins) Group work Project: Let the Ss make a wal
