Unit2SavingtheEarthTopic1Pollutionisharmfultopeople’shealth.SectionCThemainactivityis1a.本课重点活动是1a。Ⅰ.Teachingaimsanddemands教学目标1.Learnsomenewwordsandphrases:coal,deaf,print,disturb,rubbish2.Learnsomeusefulsentencesaboutnoisepollution:(1)…noiseisalsoakindofpollutionandisharmfultohumans’health.(2)Peoplewhoworkandliveinnoisyconditionsgodeafeasily.(3)…manyteenagersinAmericacanhearnobetterthan65-year-oldpeopledo,…3.Improvethesenseofprotectingtheenvironment.Ⅱ.Teachingaids教具图片/录音机/小黑板Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:5分钟)总结SectionA与SectionB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:Wehaveknownsomekindsofpollution.Canyoulistthem?Ss:Yes.Suchaswaterpollution,soilpollution,lightpollution,airpollution,noisepollutionandsoon.T:Whatproblemsdotheycause?S1:Waterpollutioncanmakepeoplesick.S2:Soilpollutioncausesunhealthyfood.S3:Lightpollutionhurtsoureyes.S4:Airpollutioncausesbreathingproblems.…T:Verygood.Inthislesson,let’stalkaboutwhatkindsofnoisepollutionare.Step2Presentation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:Let’slookatthepicture.(教师展示图片一。)T:(指着图片。)Whatisheburning?Ss:Coal.(帮学生回答。)(板书并要求学生掌握。)coalT:Canburningcoalcausepollution?Ss:Yes.Burningcoalcancauseairpollution.T:You’reright.(教师展示图片二。)T:Lookatthepicture.Peopleareproducingelectricitybywind.(教师让学生猜测词义。)(板书并要求学生理解。)electricityT:(指着图片。)Canitcausepollution?Ss:No.T:You’reright.Itcan’tcausepollution.2.(完成1a中的读前问题，核对答案。)T:OK.Lookatthephrasesof1in1a,andcheck(√)whichcausespollution.…(一分钟后。)T:Youknow,playingloudrockmusicatmidnightisakindofpollution.Why?Ss:Becauseplayingloudrockmusiccanmakelotsofnoise.T:Yes.Itnotonlydisturbsothersbutalsodoesgreatharmtopeople’shearing.(板书并要求学生掌握。)disturbdoharmto=beharmfultoT:Let’slookatthepicture.(教师展示图片三。)T:(指着图片。)Whataretheydoing?Ss:Theyareprintingnewspapers.(教师帮助学生回答。)(板书并要求学生掌握。)printT:Themachinesaremakingloudnoise.Cantheyheareachotherclearly?Ss:No.T:Theyhavetosaythewordsagainandagain.Iftheyworkthereforalongtime,theymaygodeaf.(教师指着耳朵领读godeaf并解释。)T:Thatistosay,theywillhavehearingloss.(板书并要求学生掌握deaf，理解hearingloss。)deafhearingloss(教师展示图片四。)T:(指着图片。)Theyareworkinginthesawmill.Anditalsomakesloudnoise.Itmaydisturbthepeoplenearby.Theycan’tsleepwell.(板书并解释，要求学生了解sawmill；理解nearby。)sawmillnearbyT:Sonoisepollutionisharmfultohumans’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.Let’slistentothepassagein1a.Trytofindouthowmanykindsofnoisepollutionarementionedinthepassageandwhattheyare.(小黑板出示答案，师生共同核对。)5种噪音污染：①noisefromaprintingfactory②noisefromairports③noisecausedbyloudpopmusic④aloudnoisemadeinpublic⑤noiseproducedbycarsandmachines(核对答案后，继续呈现生词。)T:Whatarethebadeffectscausedbynoisepollution?(板书，解释并要求学生理解。)effectSs:Itmakespeoplesickordeaf.T:Arethereanycountriestryingtosolvetheenvironmentalproblems,includingnoisepollution?Ss:Yes,thereare.(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。)nobetterthanStep3Consolidation第三步巩固(时间:...
