九年级英语上册《Unit 2 Saving the Earth》Topic1 SectionC 教案 仁爱版.doc

Unit 2 Saving the EarthTopic 1 Pollution is harmful to peoples health.SectionCThe main activity is 1a. 本课重点活动是1a。. Teaching aims and demands 教学目标1. Learn some new words and phrases:coal, deaf, print, disturb, rubbish2. Learn some useful sentences about noise pollution: (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 America can hear no better than 65-year-old people do, 3. Improve the sense of protecting the environment. . Teaching aids 教具图片/录音机/小黑板 . Five-finger Teaching Plan 五指教学方案Step 1 Review 第一步 复习(时间:5分钟)总结Section A与Section B内容，以环境污染的危害为主题，展开复习。(教师用上两节课的内容进行复习，导入1a。)T: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: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 what kinds of noise pollution are.Step 2 Presentation 第二步 呈现(时间:15分钟)利用图片导入生词教学，同时结合环境污染内容，创设情景，呈现1a。1. (展示图片，导入生词。)T: Lets look at the picture. (教师展示图片一。)T: (指着图片。) What is he burning?Ss: Coal. (帮学生回答。)(板书并要求学生掌握。)coalT: Can burning coal cause pollution?Ss:Yes. Burning coal can cause air pollution. T: Youre right.(教师展示图片二。) T: Look at the picture. People are producing electricity by wind. (教师让学生猜测词义。 )(板书并要求学生理解。)electricityT: (指着图片。) Can it cause pollution? Ss: No. T: Youre right. It cant cause pollution.2. (完成1a中的读前问题，核对答案。) T: OK. Look at the phrases of 1 in 1a, and check () which causes pollution. (一分钟后。) 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:Yes. It not only disturbs others but also does great harm to peoples hearing.(板书并要求学生掌握。) disturbdo harm to=be harmful toT: Lets look at the picture. (教师展示图片三。)T: (指着图片。) What are they doing?Ss: They are printing newspapers. (教师帮助学生回答。)(板书并要求学生掌握。)printT: 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 go deaf. (教师指着耳朵领读go deaf并解释。)T: That is to say, they will have hearing loss. (板书并要求学生掌握deaf，理解hearing loss。)deafhearing loss(教师展示图片四。)T: (指着图片。) They are working in the sawmill. And it also makes loud noise. It may disturb the people nearby. They cant sleep well. (板书并解释，要求学生了解sawmill；理解nearby。)sawmillnearbyT:So noise pollution is harmful to humans health. Right?Ss:Yes.3. (播放1a录音，学生跟读并找出文中涉及的几种噪音污染。) T:OK. Lets listen to the passage in 1a. Try to find out how many kinds of noise pollution are mentioned in the passage and what they are. (小黑板出示答案，师生共同核对。)5种噪音污染：noise from a printing factorynoise from airportsnoise caused by loud pop musica loud noise made in publicnoise produced by cars and machines (核对答案后，继续呈现生词。)T:What are the bad effects caused by noise pollution?(板书，解释并要求学生理解。) effectSs:It makes people sick or deaf.T:Are there any countries trying to solve the environmental problems, including noise pollution?Ss:Yes, there are.(板书，解释并要求学生了解。)including4. (呈现1a，学生找出疑难点，教师解释。) (板书要点并要求学生掌握。)no better thanStep 3 Consolidation 第三步 巩固(时间:10分钟)继续巩固1a，完成1b与1c，利用关键词进行复述，提高学生的口语表达能力。1. (根据课文内容，完成1b。)T:OK. Read 1a again and finish 1b by yourselves. (板书并要求学生掌握rubbish；理解title。核对答案。)rubbish, title2. (让学生两人一组读课文，讨论1c的四个句子分别描述的是课文中的哪一段。)T: Read the passage again, and look at the four sentences in 1c. S1, please read the four sentences. S1: T: Which paragraphs should they belong to?(核对答案，让学生回答这样选择的理由。完成1c。)3. (要求学生利用小黑板上的关键词复述1a。)T:Retell the passage with the key words given. Three minutes for preparation.a. noiseb. go deafc. print/living near airports/no better than/in public/cars and machinesd. uncomfortable and unpleasante. trying to solve (抽查几名同学，检测复述情况。教师作点评。)Step 4 Practice 第四步 练习(时间:10分钟)将1a中与噪音污染有关的内容，与现实结合，引导学生列举噪音污染的各种来源，并提出处理意见。1. (教师用课文中的噪音污染来启发学生找出身边的噪音污染。)T: We have learnt noise is a kind of pollution. What cause noise pollution around us?(让学生分组讨论，教师引导学生说出身边的噪音污染。)S1: The students in the next room are knocking on the desk.S2: Some students are talking loudly in the classroom.S3: Someone is typing the keyboard strongly.S4: Some people answer the telephone call aloud.S5: 2. (教师在列出噪音污染的各种来源后，引导学生提出解决问题的方法，从而培养学生的环保意识。)T: Everyone knows noise pollution is harmful to our ears. But how can we solve these problems?S6: Talk to each other in a 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 enjoy music. S10: Step 5 Project 第五步 综合探究活动(时间:5分钟)提出两种不同方案（可任选其一），通过小组活动，采取调查的方式加强学生的环保意识，完成2。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。并通过学生的小组活动，即调查各种各样的噪音污染，更加有效地改善环境，加强学生的环保意识。)T: Make a survey in groups about the noise pollution. Before you do it, Id like to say something about noise pollution in our school, in my home and neighborhood.(通过教师的示范，降低练习难度。)T:In our school there is noise pollution everywhere And in my home, my son likes NBA games, and he often keeps the TV in a high volume And in some public places, people speak loudlyDiscuss in groups and fill out 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. 3. (小组活动，四人一组，引导学生思考并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 the bad effects caused by them. Write them down and mail it to the newspaper after school.4. Homework:Write a letter to an editor according to the report.Example:Dear editor, Im writing to you because 板书设计：Pollution is harmful to peoples health.Section Ca kind ofbe harmful to go deafdo harm to Noise is also a kind of pollution and is harmful to humans health. many teenagers in America can hear no better than 65-year-old people do.