2019-2020年九年级英语上册《Unit 2 Saving the Earth》Topic 2 SectionC 教案 仁爱版

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1、2019-2020年九年级英语上册《Unit2SavingtheEarth》Topic2SectionC教案仁爱版Themainactivityis1a.本课重点活动是1a。Ⅰ.Teachingaimsanddemands教学目标1.Learnsomenewwordsandphrases:onearth,period,millionsof,takeaway,rise,level,referto2.Learnsomeusefulsentences:(1)Whenitrainsorwhenthewindblows,theearthistakenaway.(2)Theh

2、eatfromthesuncan’tescapesothetemperatureisrising.3.Learntotalkabouttheharmofpollution:(1)Forestshavebeedeserts,somoreandmoresortsofanimalsandplantsaredisappearing.(2)Asaresult,manyriversandlakesarenowdead.(3)Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirect

3、ly.(4)Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.4.Developthestudents’senseofenvironmentalprotection.Ⅱ.Teachingaids教具图片/小黑板Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:4分钟)通过检查作业，引导学生开拓思维，提出保护环境和水资源的具体措施，复习不定代词和副词。为学习新词汇作准备。(检查作业，并找学生汇报结果，引导学生如何保护水资源。)T:How

4、doyouprotectourenvironmentandsavewater?S1:Everyoneshouldplantmoretrees.S2:Weshoulddoeverythingwecantosavewater.S3:Everybodyshouldknowtheimportanceofforests.S4:Passlawsagainstwaterpollution.S5:Collectandreusewastewater.…Step2Presentation第二步呈现(时间:18分钟)教师通过日常对话，借助1a中的图片，创设情景，导入新课，呈现新的词汇。

5、1.(教师由日常对话，引出本课话题，呈现部分新词汇。)T:What’stheweatherliketoday?Ss:It’s…T:Asweknow,Beijingoftenhassandstormsinspring.Whatcausesthebadweather?Ss:Cuttingdowntoomanytrees.(展示1a第二幅图画。)T:Yes.Allovertheworld,peoplehavecutdownmillionsoftrees.Andtreesbeefewer.(板书并要求学生掌握。)millionsofT:Cuttingdowntoomany

6、treescausesthebadweather.Howcantreesaffecttheweather?S1:Theycankeepwaterfromrunningaway.S2:Theycanstop…S3:…T:Yes.Treescanstopthewindandwaterfromtakingtheearthaway.(板书并要求学生掌握。)takeaway2.(继续探讨上述问题，引出新词汇。)T:Anythingelse?(如果没有学生回答，继续如下问题。)T:What’stheairlikeintheforest?Ss:It’sfresh.T:Yes.W

7、hy?Ss:(允许学生用汉语回答。)树能吸收二氧化碳并释放氧气。T:That’sright.Treescanbreatheincarbondioxideandbreatheoutoxygen.(展示1a第五幅图。)Pleaselookatthepicture.(板书并要求学生理解。)carbondioxide:CO2oxygen:O2T:WheredoesCO2efrom?S4:Animals’breathing.S5:Burningoil.Forexample,carsandbuses.T:Yes.Theyhavepollutedtheair.Carbondio

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