《Unit2Topic1SectionC》由会员分享，可在线阅读，更多相关《Unit2Topic1SectionC（5页珍藏版）》请在金锄头文库上搜索。
1、Unit 2 Saving the EarthTopic 1 Pollution causes too many problems.Section CThe 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:coal, deaf, print, disturb, rubbish2. Learn some useful sentences about noise pollution: (1) noise is also a kind of pollution and is
2、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
3、 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 p
4、eople 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.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.
5、(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: Good.(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
6、 pollution? Ss: No. T: Great! 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 it can make lots of noise. T:Excellent. It not only
7、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
8、clearly?Ss:No.T: Yes. 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 peopl
9、e 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 t
10、hey 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:Ar
11、e 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。1. (根据课文内容，完成1b。)T:OK. Read 1a again and finish 1b by yourselve
12、s. (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. Which paragraphs should they belong to?(核对答案，让学生回答这样选择的理由。)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
13、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 peop
14、le 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 sof
15、tly. 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。方案一：1. (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 everywher
