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1、Unit2SavingtheEarthTopic1Pollutionisharmfultopeopleshealth.SectionAThemainactivitiesare1a,1band3a.本课重点活动是1a、1b和3a。.Teachingaimsanddemands教课目的1.Learnsomenewwordsandphrases:bee,mygoodness,waste,stream,breathe,beharmfulto,influence2.Learnsomeusefulsentences:(1)Oh,mygoodness!(2)Look,thereareseveralchemi
2、calfactoriespouringwastewaterintothestream.3.Learndirectspeechandindirectspeech:(1) Kangkangsaidthatitwasabeautifulplacewithflowersandgrass.(2) Kangkangsaidthattheflowersandgrasshadgone.4. Learnandtalkaboutdifferentkindsofpollution:(1)Airpollutionmakespeoplesick.(2)Lightpollutionisharmfultooureyes.(
3、3)Litterinfluencesourenvironment.Teachingaids教具幻灯片/小黑板/录音机/图片.Five-fingerTeachingPlan五赐教课方案Step1Review第一步复习(时间:3分钟)回首第一单元有关家乡变化的内容，运用此刻达成时态，导入新课。(经过对第一单元的复习，导入被污染的西山情景。)T: Lastunit,wehavelearnedsomechangesinourhometown.Canyousaysome?S1:Theroadsarewider.S2:Thebuildingsarehigherandhigher.S3:Thelivingc
4、onditionshaveimprovedS4:T: Yes.Manychangeshavehappenedinourhometown.LetslookatthetwopicturesabouttheWestHillanddiscussthechangesbetweenthem.Step2Presentation第二步表现(时间:15分钟)经过比较1a的两幅图画的差别，睁开对话，学习部分生词，表现1a。1. (利用幻灯片展现1a中的两幅图，师生问答。)T: Arethereanydifferencesbetweenthem?Ss:Yes.T: LetslookatPicture1.Whatca
5、nyousee?S1:Icanseesomeflowersandgrass.S2:Icanseesomebutterfliesdancing.T: Yes,therearesomebutterfliesdancing.(板书并要修业生掌握。)thereis/aredoingsth.专心爱心专心-1-T: Whatelsecanyousee?S3:Icanseearabbit.S4:Icanseesomehouses.S5:T: (指着蜜蜂。)Whatsit?Ss:蜜蜂。T: Itsabee.Thereisabeeflying.(板书并要修业生掌握。)beeT: (指着小溪。)Whatsit?S
6、s:小溪。T: Itsastream.Andtherearesomefishesswimminginthestream.(板书并要修业生掌握。)streamT:WeknowtheWestHillwasabeautifulplace.LookatPicture2.Oh,mygoodness!WhathashappenedtotheWestHill?(板书并要修业生掌握。)mygoodnessS6:Therabbithasdisappeared.S7:Thefishhavedied.S8:Thetreeshavedied.S9:Therearenoflowers,butterflies,grass
7、,andsoon.S10:Therearesomefactories.T: (指着工厂。)Yes,thereareseveralfactories.Theyarechemicalfactories.(板书并要修业生理解。)chemicalT:(指着工厂冒的黑烟，并捂住鼻子做呼吸困难状。)Theyaremakingmuchsmoke.Itcancausebreathingproblems.(板书并要修业生掌握。)breatheT: (指着排放的废物。)Andtheyarepouringwastewaterintothestream.(板书并要修业生掌握。)wasteT: FromPicture2
8、,weknowthechemicalfactoriesareharmfultotheanimalsandplants.(板书并要修业生掌握。)harmfulbeharmfulto2.(要修业生不看书，只听录音，捕获重点，回答下列问题，提高听力水平。)T: Closeyourbooks.Listentothetapecarefully,thenanswerthesequestions.(出示小黑板上的问题，听录音1a。)(1)Wherearetheygoingtohavethepicnic?(2)WhydoesKangkangsay“Oh,mygoodness!”?3.(查对答案，板书1a的重点
9、词。)专心爱心专心-2-beautifulfreshcleangonedirtyterriblewastewaterStep3Consolidation第三步稳固(时间:12分钟)复述1a，引入本课重点，解说和演练“直接引语”与“间接引语”，达成1b。1.(要修业生在限准时间内，依据黑板上的重点词复述对话。)T: Trytousethekeywordsontheblackboardtoretell1a.Example:Inthepast,theWestHillwasabeautifulplacewithflowersandgrass.Wecouldseebeesandbutterfliesda
10、ncing.Theairwasfresh,thewaterwasverycleanandwecouldseefishswimming.Butnow,alltheflowers,grass,bees,butterfliesandfishhavegone.Thewaterissodirtyanditsmellsterrible.Why?Becausethereareseveralchemicalfactoriespouringwastewaterintothestream.Soweshouldprotecttheenvironment.2.(引入语法“直接引语”和“间接引语”。要修业生依据1a回答
11、教师的问题。)T: WhatdidKangkangsay?(要修业生轮番回答。)S1:Ivebeentherebefore.T:Yes.Kangkangsaidthathehadbeentherebefore.T: Next,please.S2:Itsabeautifulplacewithlotsofflowersandgrass.T:OK.Kangkangsaidthatitwasabeautifulplacewithlotsofflowersandgrass.T: Next,please.S3:Theairisfreshandthewaterisclean,andyouwillseeT:S
12、oKangkangsaidthattheairwasfreshandthewaterwasclean,andtheywouldsee(板书以上三个画线句子，要修业生将板书与1a中的原句对照找出不一样之处，教师指引和补充。学习“直接引语”和“间接引语”。)Kangkangsaidthathehadbeentherebefore.Kangkangsaidthatitwasabeautifulplacewithlotsofflowersandgrass.Kangkangsaidthattheairwasfreshandthewaterwasclean,andtheywouldsee3. (让学生达成
13、1b，并作报告。)T:Filloutthetablein1b,thengiveareport,using“Kangkang/Mariasaid”.Step4Practice第四步练习(时间:10分钟)经过听力训练，引出污染的看法，充分调换学生的踊跃性，加深对各样污染及其危害的理解，达成2和3b。1.(播放2录音，学生听后达成2。)T:Weknow,withoutplantsandanimals,theWestHillisntbeautiful.Soplantsandanimalsareimportant.Letslookatthelovelyanimalsinthepicturesin2.Li
14、stentothetapeandwritedownthenumbersofthecorrectpictures.(若学生没听懂，可再放一遍，查对答案。)2.(学生看图达成3a。)T: Afterlistening,doyouknowwhatdoesgreatharmtoanimals?Ss:Pollution.T:Yes.Thereremanykindsofpollution.Letslookatthepicturesin3aand专心爱心专心-3-matchthemwiththephrasesgiven.Trytoguessthemeaningofsoil.(板书并要修业生理解。)soil(查对答案。)3. (让学生用3a的短语达成3b。)T:Pollutionhascausedmanyproblems.Whatproblemshasitcaused?Pleasecomplete3bwiththephrasesin3a.(查对答案，并板书influence，要修业生掌握。)influenceStep5Project第五步综合研究活动(时间:5分钟)经过游戏及检查的方式，加深学生对污染及其危害的印象，增强学生的环保意识。1.Gue
