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1、Section C. Material analysis本课是第二单元第一话题的第三课时，主活动是1a和4。学生通过阅读1a，了解噪音污染是如何产生的，是怎样影响人们健康的。1b则训练学生通过语境，推断词义，选出与该词匹配的英文解释。1c先让学生找出主旨句，再通过找出细节来论证段落的中心思想，以及通过语境判断重点词汇和句子的意思。2继续谈论噪音污染，通过选词填空的方式辨析单词的用法。3让学生模仿1a 来讨论其它的污染。为了让学生顺利地完成讨论任务，还给出了可能涉及到的讨论内容，很有指导性。4是在2和3的基础之上进行的写作练习，让学生学习运用中心句来组织文章。通过了解噪音污染，让学生进一步了解各
2、种污染的现状。引导学生关注环境问题，关注各种污染，树立正确的环保意识。.Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，初步感知定语从句。了解与噪音污染有关的常识。区别不同词性的单词的用法。2.Skill aims: 能读懂有关环境污染的文章。能看懂和听懂简单的英文解释。能够理解段落中各个句子间的逻辑关系。能用合适的英语对环境污染问题进行口头和书面语表达。3.Emotional aims: (optional) 通过学习，加深对环境问题的认知，树立环保意识。4.Culture awareness: (optional) 了解各种不同种类的污染，关注全球的
3、环境现状。. The key points and difficult points1. Key points: Words and phrases: deaf, print, recently, sentence, meaning, hearing, loss, disturb, uncomfortable, unpleasant, sort, environmental, including, on to go deaf, do harm to/be harmful to, lose ones hearing/ have hearing loss, in noisy condition/
4、too much noise, no better than not onlybut also, cause sb. to do sth., all sorts of environmental problems, including noise problemsSentences: (1) noise is also a kind of pollution and is harmful to humans health. (2) People who work and live in noisy conditions go deaf easily. (3) many teenagers in
5、 America can hear no better than 65-year-old people do Grammar: Simple past, present perfect.2. Difficult points： 能根据所学内容，表达与污染相关的话题。能区别使用不同词性的单词。能大致理解含有定语从句的句子。能正确理解和使用“no better than”,“do harm to”等短语。. Learning strategies 能通过思维导图，对课文内容进行读前预测。能根据不同阅读材料，运用不同的阅读策略获取信息。 善于利用教材插图理解有关污染和环保的对话或文章。 能积极地加入
6、小组，合作探究，学会表达自己的观点。能根据写作要求，搜集、准备有关污染和环保的素材。. Teaching aids与污染相关的图片；单词卡片（如harm/ harmful; hear/ hearing; lose/ loss等）；录音机；幻灯片；音频（rock music）等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Getting students ready for learning and revision（2 mins）Class
7、activityShow some pictures about pollution and let the Ss speak out the effects of different sorts of pollution. T: Hi, everyone. We have known some kinds of pollution. Can you list them?Ss:Yes. Water pollution, soil pollution, light pollution, air pollution, and noise pollution and so on. T:Now loo
8、k at these pictures carefully. What problems do they cause?S1:Water pollution can make people sick.S2:Soil pollution causes unhealthy food.S3:Light pollution hurts our eyes.S4:Air pollution causes breathing problems.T:Very good. In this lesson, lets talk about noise pollution.Speak out the effects o
9、f different sorts of pollution.Ss:Yes. Such as water pollution, soil pollution, light pollution, air pollution, noise pollution and so on. S1:Water pollution can make people sick.S2:Soil pollution causes unhealthy food.S3:Light pollution hurts our eyes.S4: Air pollution causes breathing problems.通过图
10、片复习不同种类的污染情况，为学习噪音污染进行热身，打开思维。2 Lead-in (2 mins)Class activity Play some loud rock music and let the Ss discuss their feelings.T: Now lets listen to some music. Then talk about your feelings.T: What do you think of the music?Ss: I dont like it. / I think its cool.T: If I play rock music very loud at
11、 midnight, will you enjoy it? Ss: No. / Terrible.T: Why?Ss: Because it makes lots of noise. We cant sleep at all.Listen to some loud music and discuss their feelings.Ss: I dont like it. / I think its cool.Ss: No. / Terrible.Ss: Because it makes lots of noise. We cant sleep at all.摇滚乐能够吸引学生的兴趣，有很多年轻人
12、喜欢，教师在使用摇滚乐引出噪音时，要注意提前预测学生的反应，如果有学生回答的结果不是你想要的，要继续引导如：T: What do you think of the music?Ss: I think its cool.T: If I play rock music loud at midnight, will you enjoy it? Ss: No. /Terrible.T: Why?Ss: Because it makes lots of noise.3Pre-reading (5mins)Group work Guide the Ss to discuss the things that
13、 can make noise and write them down.T: Excellent. It not only disturbs others but also does great harm to peoples hearing. Now discuss with your group members about the things that can make noise. Write them down in your books.T: What else can make noise?S1: The cars and buses.S2: The pets at home.S
14、3: The little kids.S4: MachinesDiscuss the things that can make noise and write them down. S1: The cars and buses.S2: The pets at home.S3: The little kids.S4: Machines教师要合理利用教材资源，在读前活动中，利用图表训练学生的发散思维，帮助学生拓展视野，进行交流。在日常教学中，教师也可以自己创设这样的图表。4While-reading (10 mins)Individual workIndividual workGroup work
15、Step 1: Let the Ss read 1a quickly, check what things can make noise in 1a.T: Excellent. Now read 1a quickly, check what things can make noise in 1a.S1: Printing machines. S2: The airplanes.S3: Loud pop musicStep 2: Lead the Ss to read 1a, find the words in 1b and guess the meanings of them according to the content. Then match the words w
