仁爱版英语教学案例九上Unit2 Topic1 B.doc

Pollution causes too many problems.Section Bproduce terrible gascant stand the environment herejoin the armythe day before yesterdaymanage to do sth.短暂性动词延续性动词leave be awaybecome come begoarrivedie be deadbegin be onHow long have you taught in our school?For 7 years/Since 7 years ago.for+时间段=since+时间点The fisherman bought the VCD yesterday.The fisherman has had the VCD since yesterday.The secretary borrowed this book several days ago.The secretary has kept this book for several days.Xiao Li joined the army last year.Xiao Li has been in the army for a year.Section CThe main activities are 1a. 本课重点活动是1a。. Teaching aims and demands 教学目标1. Learn some new words:coal, deaf, print, disturb2. Let the students know something about noise pollution:(1) Noise is also a kind of pollution and is harmful to human health. (2) People who work and live in noisy conditions may become deaf. (3) Quite a few people living near airports also have hearing loss. (4) Making a loud noise in public is also a kind of pollution; it not only disturbs others but also does great harm to hearing. 3. After this section, students can improve the sense of protecting the environment. . Teaching aids 教具录音机/多媒体图片/小黑板 . Five-finger Teaching Plan 五指教学方案Step 1 Review 第一步 复习(时间:6分钟)1. (教师用上两节课的内容引出新的词汇和语言点。)T: We have learnt Section A and B. We have known some kinds of pollution. Can you list them?Ss:Yes. Such as water pollution, soil pollution, light pollution, air pollution, noise pollution and so on. T: Very good. Lets look at the pictures. (教师展示多媒体上的图片。)T: (指着图片。) What are they burning?Ss: (帮学生回答并重复领读解释意思。) Coal.T: Can burning coal cause pollution?Ss:Yes. Burning coal can cause air pollution. T: Youre right.(教师展示多媒体上的图片。) T: Look at the picture. People are producing electricity by wind. (教师释义并领读electricity。 )T: (指图片。) Can it cause pollution? Ss: No. T: Youre right. It cant cause pollution.(让学生重复读。) Ss: Producing electricity by wind cant cause pollution.2. (教师让学生完成1a中的pre-reading questions。) T: OK. Look at the phrases in 1a, and check () which is pollution. (学生可以讨论，然后教师与学生核对答案。)Step 2 Presentation 第二步 呈现(时间:14分钟)T: You know, playing loud rock music at midnight is a kind of pollution. Why?Ss:Because playing loud rock music can make lots of noise. T: Lets look at the pictures. (教师展示多媒体图片。)T: (指图片问。) What are they doing?Ss: (教师帮助回答并释义，领读print。) They are printing newspapers. T: The machines are making loud noise. Can they hear each other clearly?Ss:No.T: They have to say the words again and again. If they work there for a long time, they may become deaf. (教师指着耳朵重复读。)T: That is to say, they will have hearing loss. (板书)print, deaf, hearing loss (教师展示多媒体图片。)T: (教师指着图片。) They are young people, they are teenagers. (教师释义teenager并领读。)T: What are the teenagers doing?Ss:They are listening to pop music. T: Yes, they are listening to loud pop music. Its very harmful to their hearing. It means that loud pop music does harm to hearing. (教师释义“harm”词组，并板书要点。)(板书)do harm to be harmful to (教师展示多媒体图片。)T: What happened in this picture?Ss:There are many cars making lots of noise. T: So cars often cause noise pollution. (教师展示多媒体图片。)T: (教师指着图片。) They are working in the sawmill. And it also makes loud noise. (教师展示多媒体图片。)T: What are they doing?Ss:They are building houses. T: When are they building houses?(教师指着图片上的月亮/星星。)Ss:At night. T: Where are they?Ss:They are in a community. T: Yes, youre right. Some people are sleeping now. So they may disturb the other people in the community. So we shouldnt make loud noises in public. (教师板书解释并领读。)disturb, in public T: From the pictures, we know what causes noise pollution. (再次快速播放上述图片，教师讲述噪音污染的危害，导入1a。)T: Noise pollution can not only cause hearing loss but also make people sick. So noise pullution doesnt make people feel comfortable or pleasant. That is to say, “Noise pollution makes peoples lives uncomfortable and unpleasant. ”(教师领读，并释义。)T: (接着说) So we should do something to solve the noise pollution problems. Now, lets look at the two pictures in 1a, then listen to the tape, answer the question “Is the government trying to do something to solve all sorts of problems?”(播放录音。)(听完录音，让学生回答。)Step 3 Consolidation 第三步 巩固(时间:5分钟)1. (播放1a磁带，学生跟读，注意语音语调。)T: Listen to 1a and repeat, pay attention to the pronunciation and intonation. 2. (齐读课文，以保证全体学生加深对课文的理解。)T: Please read the text together. 3. (根据课文内容，完成1b的练习。)T:Read this passage (1a) again and finish 1b by yourselves. (教师与学生核对答案。)4. (让学生两人一组读课文，讨论1c的四个句子应该分别放在课文中的哪一段。)T: Read the passage again, look at the four sentences in 1c. S1, please read the four sentences. S1: T: Which paragraph would they belong to?(教师与学生核对答案，让学生回答选出正确答案的理由，或教师解释理由。)Step 4 Practice 第四步 练习(时间:10分钟)1. (教师用课文中的噪声污染来启发学生找出周围的噪声污染。)T: We have learnt noise is a kind of pollution. What causes noise pollution around us?(让学生分组讨论，教师给学生一些引导，让学生说出我们身边的噪声污染。)S1: The students in the next room are singing. S2: Some students are talking loudly in the classroom. S3: Someone is typing the keyboard strongly. S4: Some people answer a telephone call loudly. S5: (教师在列出噪声污染的各种来源后，教导学生如何避免出现这些现象。从而培养学生的环境保护意识。)T: Everyone knows noise pollution is harmful to our ears. So how can we solve these problems?S6: Speak to each other in low voice. S7: Try to find a proper place to answer the telephone. S8: Type the keyboard softly. S9: Find a proper place and proper time to have a music lesson. S10: 2. (小组活动，四人一组，引导学生练习身边的实际生活，讨论他们身边实际存在的各种类型的污染及其危害，并由一名小组成员书面记录整理，最终以书信的形式将问题反映到报社。完成2。)T: Work in groups of four, think about what kinds of pollution we have in our hometown and discuss what bad effects caused by them. Write it down and after school mail it to the newspaper.Step 5 Project 第五步 综合探究活动(时间:10分钟)1. (通过本节课的学习，让学生认识到噪音污染的来源及其危害，通过学生的小组活动，调查各种各样的噪音污染以及怎样更加有效地加以改进。)T: Make a survey in groups about the noise pollution. Before you do it, Id like to say something about the noise pollution in our school, in my home and my neighborhoods. (通过教师的示范作用，使此练习变得更加容易。)T: In our school the noise pollution is everywhere And in my home, my son likes NBA games. He often watches it loudly And in some public places, people speak loudlyDiscuss in groups and fill in the form.PlaceNameAt schoolAt homeIn other public places S1S2S32. (让学生根据调查表进行报告。)T: Please report your work to the class. S5: 3. Homework:T: Please write an article, the title is“My Ideal School”or“My Ideal City”. 板书设计：Pollution causes too many problems.Section Cbecome deaf be harmful to quite a fewdo harm to hearing lossMaking loud noises so much in public is also a kind of pollution.no better thanall sorts of =all kinds of Section DThe main activities are 1a和3. 本课重点活动是1a和3。. Teaching aims and demands 教学目标1. Learn some new words:create, industry, rubbish, blood2. Review useful expressions: (1) Oh, my goodness. (2) All the flowers, grass and fish have gone! (3) There are several chemical factories pouring waste water into the streams. (4) Anyway, Ill manage to leave this place.3. Review some kinds of pollution and the problems caused by them: air / soil / light / water / noise / litter pollution4. Review the present perfect: (1) How long have you been like this? (2) Ive been like this since last month. (3) Bobby has been away from the park since two hours ago / 8:00.(4) Bobby has been away from the park for 2 hours. Teaching aids 教具录音机/幻灯片/小黑板/多媒体图片. Five-finger Teaching Plan 五指教学方案Step 1 Review 第一步 复习(时间:15分钟)1. (复习上一课的1a, 引出新的词汇。)T: Is noise a kind of pollution?Ss:Yes. T: What can cause noise pollution?S1:The machines in some factories make loud noises. S2:The planes cause noise pollution.S3:Loud pop music.S4:Cars.S5:The traffic. S6: T: Many things making loud noises can cause noise pollution. What problems does noise pollution cause?S7:Noise pollution can cause hearing loss.S8:It makes people sick or become deaf. S9:It also makes peoples lives uncomfortable and unpleasant. T: Yes, loud noises can cause high blood pressure as well.(教师板书新词并释义。)high blood pressureT: Noise pollution is harmful to people. But its not the only one in our world. Do you know any other kinds of pollution?SS:Air pollution, soil pollution, water pollution, light pollution, litter and so on. (教师展示多媒体图片。)T: Its a picture about soil pollution. What causes soil pollution?S1:People use chemicals too much in their fields. T: So they destroy the soil. (教师板书destroy并释义。)(板书)destroy(教师展示多媒体图片。)T: Look at this picture. Whats on the ground?Ss:(教师引导学生回答。) Waste bottles, waste paper, waste plastic and so on. T: Yes. Its a pile of rubbish. (教师板书并讲解rubbish。)T: (指着图片中的工业区) What place is it?Ss:“工业区”。T: Yes, its an area of industry. (教师板书并讲解industry。)Step 2 Presentation 第二步 呈现(时间:7分钟)1. (教师展示几种类型的污染图片，让学生说出是什么污染。)T: Look at Picture 1. Which kind of pollution is it?S1:Its a picture about air pollution. T: Why?S2:Because burning coal can make terrible gas. So it can cause breathing problems.T: Look at Picture 2. Which kind of pollution is it? S3:Light pollution. T: Yes. Look at the strong, changeable light. Its bad for eyes. T: Look at Picture 3. What is he doing?Ss:He is throwing away lots of rubbish.(教师板书，并释义词组。)(板书)throwaway (教师总结。)T: From the pictures, we know there are many kinds of pollution in the world. They are bad for our health in many ways. If there is no pollution on the earth. What will the earth be like?Ss:Maybe our earth will be greener and more beautiful. T: Yes. We should protect our plants from now on. OK , lets look at 1a. Please fill in the blanks with the words and phrases above. (学生用所给的单词和短语填空，老师与学生核对答案。)(让学生再次阅读1a，同时思考小黑板上的问题。)1. How many kinds of pollution are mentioned in the passage?2. Whats the effects of each pollution?3. How can we make our planet better?(教师让学生回答问题，然后完成1b。)T: Please fill in the form on Page 31 according to the questions on the small blackboard. (学生填表格后，教师与学生一起核对答案。)Step 3 Consolidation 第三步 巩固(时间:5分钟)1. (学生一起朗读1a。)T: Read the passage together. 2. (1)(教师问，学生答。问题可由易到难，由一般疑问句到特殊疑问句。)T: Now answer my questions. First,“Yes”or“No”questions. OK?Ss:Yes. T: No. 1: Are there many kinds of pollution around us? No. 2: Are they bad for our health? No. 3: Can air pollution cause breathing problems? No. 4: Is noise pollution harmful to people? No. 5: Do people like working under strong changeable light? No. 6: Are you sure our planet will become greener?(2)(通过学生和学生之间的Yes/No的问答，巩固对1a的理解。)T: Now pair work. One student asks and the other answers. Just“Yes”or“No”questions. Please use“Yes”or“No”questions as many as possible. 3. (1)(教师用wh-question问，学生回答。)T: Now answer my wh-questions about the text. No. 1: How many kinds of pollution are mentioned in this passage? No. 2: What effects can air pollution cause to children? No. 3: What effects can noise pollution cause? No. 4: What effects can light pollution cause? No. 5: What measures should the government take, in your opinion? No. 6: What is the main idea of 1a? (2)(在学生完全理解上述问句，并回答正确后，展开小组活动，以便于更好地巩固1a。)T: Now its time for pair work.(学生之间分组问答，教师给予指导。)Step 4 Practice 第四步 练习(时间:12分钟)1. (教师通过复习西山的污染引出现在完成时。)T: Without pollution, our earth will be greener. Without pollution, West Hill must be a beautiful place. But now West Hill is polluted. How long have people polluted it?Ss:For a month / Since last month. T: How long have the flowers and grass been dead?S5:Maybe since last month. T: Yes. How long have the animals been away?S6:They have been away for a month / since last month. (板书)how long have / has been deadhave / has been away for a month / since last month(教师让学生看黑板上的句型，说出需注意的问题：时间状语for+时间段/since+时间点。how long的谓语动词需用延续性动词。放录音，让学生跟读2a. )T: Please listen to 2a and read after it. 2. 由一个组说出一个过去式的句子(含有过去式的时间状语)，另外几组把它改成含有for/ since时间状语的现在完成时，让学生进一步掌握语法。Fox example: Group 1: My uncle went to Beijing 2 days ago. Group 2: He has been in Beijing for 2 days / since 2 days ago. Group 3: The shop opened 3 minutes ago. Group 4: The shop has been open for 3 minutes / since 3 minutes ago. T: Well done. You have learnt the present perfect very well. (教师通过复习西山的污染一课中的句式来练习2b的句子。)T: What is West Hill like now?S7: All the grass, flowers and fish have gone. S8: The rabbits, bees and butterflies have gone, too. S9: The water is dirty. S10: The air is terrible. S11: There are several chemical factories pouring waste water into the river. S12: T: Oh, my goodness! West Hill is polluted so seriously. So the Granny will mange to leave there. Now lets listen to the tape of 2b, and read after it.(教师放录音，让学生跟读2b。讲解并强调这些功能用语。)T: How many kinds of pollution are there on the West Hill, can you find them?(学生根据上面谈论的答案或Section A. B的图片回答，并解释原因，让学生用所学知识发现污染。为做环保人作铺垫。)S1: There is air pollution. Because the air is terrible. S2: There is water pollution. Because the fish have gone. S3: There is noise pollution. Because Granny cant sleep well. S4: T: There are so many pollution problems on West Hill. How can we deal with them?(让学生分组讨论。)S1: Write a letter to newspapers and TV stations. S2: Make some rules to stop pollution. S3: Pull down the factories. S4: (教师总结。)Step 5 Project