SectionCThemainactivitiesare1aand2.本課重點活動是1a和2。Ⅰ.Teachingaimsanddemands教學目標1.Learnnewword:electric2.Learnsomecompoundsentences:(1)Thoughthecarworked,itsmelledterrible!(2)Theyworkwell,buttheyareslowandcan’trunforlong.(3)ThewatertrainsinWalesusewatertopushonetraindownahillwhilepullinganothertrainupthehill.3.Learnsomekindsofenergyandtheiradvantagesanddisadvantages.Ⅱ.Teachingaids教具錄音機/圖片/小黑板Ⅲ.Five-fingerTeachingPlan五指教學方案Step1Review第一步復習(時間:12分鐘)1.(1)(通過對上一課1a的復習，強調(diào)怎樣做才能成為綠色使者,進一步增加學生的環(huán)保意識，同時也創(chuàng)造一種英語氛圍。)T: CanyourememberwhatwehavelearnedinSectionB?Ss: Yes.(教師可以出示上一課1a圖片。)T: WhatareJaneandMichaeldoing?Ss: Theyaretalkingabouthowtobeagreenerperson.T: Canyoutellmehowtobeagreenerperson?Ss: First,turnoffthelightswhenweleavearoom.T: Whataboutthenext?Ss: Walkorrideabikeinsteadoftakingabusorataxi…T: Verygood.Pleasegoon.Ss: Takeaclothbagwhenwegoshopping.T: Great.It’seasiersaidthandone.Sojustdoitfromnowon.2.(學生小組討論節(jié)約能源的各種方法，以舊帶新，導入新課主題。)T:Wemustnotonlyprotectourenvironmentbutalsosaveenergylikeelectricity.Nowdiscussthisprobleminpairs:Whatshouldwedotosaveenergy?(學生分組討論，鼓勵學生說出日常所觀察到的情況。)T:Well,I’msureyouhavesomenewideastosaveenergy.Pleasetellmeonebyone.Nowlet’scomparewhoseideasarebetterandgreener.Who’sthevolunteer?Pleasehandsup!S1:Don’tdriveacarifyoutravelashortdistance.S2:Writeonbothsidesofthepaper.S3:Don’tusethethingsthatcanbeusedonlyonce.S4:Afterwewashfaces,wecanusetheusedwatertowashclothes.S5:Takeaclothbagwhenwegoshopping.S6:TurnofftheTVsetwhileyouareaway.S7:…T:Goodideas!Thankyou,boysandgirls!Whichideaisbetterandgreener?S8:IthinkS7’3.(通過學生對節(jié)能環(huán)保知識的討論，老師引出文中所講的新環(huán)保事物，出示1a的掛圖，導入新課內(nèi)容，教授生詞。)T:Lookatthepictures.Maybetheyarethenewthingsthatyouhaven’tknown.Theyshowussomeformsofenergy.Someofthemmaydolessharmtoourenvironment.What’sitinPicturea?Ss:It’sacar.T: Yes.Whatabeautifulcar!Thewindowmatchesthecolorofthecar.Isitstrange?Ss:Yes.T:It’sanelectriccar.Itworkswell,butit’sslowandcan’trunforlong.(板書并講解，要求掌握)electric—electricityelectriccarT:What’sitinPictureb?Whoknowsit?S9:It’satrain.Itcanrunfast.T:You’reright.It’saMaglevTrain.Itusesmagnets.Itsadvantagesarequiet,fastandclean,butit’stooexpensive.(教師領(lǐng)讀并解釋。)(學生復述句子。)(通過同樣的方法，讓學生了解1a幾幅圖中新的制造能量的方法。)Step2Presentation第二步呈現(xiàn)(時間:10分鐘)1.(1)(要求學生在字典中快速地查出1a中生詞的意義，培養(yǎng)學生快速查閱字典的能力。)T:Takeoutyourdictionary.Lookupthenewwordsin1aasquicklyaspossible.(2)(抽查個別學生，核對單詞的發(fā)音與漢語意思。理解power,nuclear和acidrain。)(3)(以小組比賽、男女生比賽、接力比賽等形式對單詞的發(fā)音進行操練，讓學生達到會讀的目的。)(4)(以同樣的方法讓學生理解詞意，避免枯燥的記憶。)2.(1)(讓學生快速閱讀1a中的2，為每段文章找到正確的圖片。)T:Readthepassagequickly,andchoosetherightpictureforeachparagraph.(2)(再次閱讀，判斷下列句子正誤。用小黑板出示句子。)T:Readthepassageagain,andthenmarkTrue(T)orFalse(F).①()It’sgoodthatpeopleproducepowerfromcoal.②()Nuclearpowerisdangerous.Sowecan’tuseit.③()Thecarthatusedanimalwasteworkedwell.④()Theelectriccarscanrunalongdistance.⑤()TheMaglevTraincanbeusedinmostofChina.⑥()InWaleswaterpushesthetrainsupanddownthehill.3.(播放1a的錄音，學生跟讀，注意語音語調(diào)，訓練學生讀的能力并再次理解課文。)4.(學生再次閱讀1a，找出疑難點后，鼓勵其他學生作答。)T:()2.(要求學生閱讀1a課文，并準備填寫1b表格。明確讀的任務，有助于提高閱讀效率。)T:Lookattheformin1b.Readthepassageagainandfillouttheform.(幾分鐘后。)T:Discusstheanswersinyourgroup.Thenlet’scheckthemtogether.(先讓學生在小組內(nèi)討論，然后師生一起核對答案。)(教師板書。)MaterialAdvantageDisadvantageUsedornotinChinacoalproducepowerdirtyanddangeroususednuclearenergyproducepowerdangeroususedanimalwastecheapsmellterriblenotusedmagnetsquiet,fastandcleanexpensiveusedwaterproducepowerslownotused3.(通過學習1b的表格，為學生復述課文打下了基礎。)Step3Consolidation第三步鞏固(時間:8分鐘)(根據(jù)1b表格，以問答形式復述1a課文。)T:Let’sretell1aaccordingtothetablein1bbyaskingandanswering.Forexample:(1)T:Whataretheadvantagesanddisadvantagesofcoal?Ss:Cheap,dirty,dangerous.(2)T:Canyousaysomethingaboutnuclearpower?Ss:Dangerousandexpensive.(3)T:Whataboutanimalwaste?Ss:Cheapbutitsmellsterrible.(4)T:Andelectriccar?Ss:Workwellbutcannotrunforlong.(5)T:WhataretheadvantagesanddisadvantagesofMaglevTrain?Ss:Quiet,fast,cleanbuttooexpensive.(6)T:Whataboutthewatertrains?Ss:Verycheapbutslow.(7)T:Whatisthemainideaofthispassage?Canyougiveapropertitleforthispassage?Ss:Somedifferentwaysofproducingpower.Step4Practice第四步練習(時間:10分鐘)1.(小組討論更多更新發(fā)電的方法，導入下文。)T:powerandanimalwaste.Therearealsoelectriccarsinmanycountries.MaglevTrainisusedinJapan.TheWatertrainsinWalesusewatertopushatraindownahillwhilepullinganothertrainupthehill.Nowwhocantellussomewaysofproducingelectricity?(板書push…down,pull…up)S1:Usethesunlighttoproduceelectricity.S2:Usewindtoproduceelectricityinthedeserts.S3:Usewaterintheseatoproduceelectricity.S4:…2.(教師出示2中的圖片，并完成2。)(1)T:Nowpleaselookatthefourpictures.Whatwaysdotheyhavetoproduceelectricity?Matchthepictureswiththepropersentences.(2)(核對答案后，讓學生說出四幅圖中采用四種方式發(fā)電的優(yōu)點。)T:What’stheadvantageoftheseways?Ss:Lesspollution.T:That’sright.Lightningispowerful.Ifitcanbemadeuseof,thatwouldbegreat.I’msureyoucandoitoneday.Comeon,mychildren.(3)(再次閱讀，加深理解。)(4)(教師出示2中圖片，讓學生看圖說話。)Step5Project第五步綜合探究活動(時間:5分鐘)1.(填寫表格，讓學生學會如何節(jié)約能源，更加合理地利用能源，以增強學生的環(huán)保意識。)T:DayThingNameMon.Tue.Wed.Thur.Fri.Sat.Sun.todonottodotodonottodotodonottodotodonottodotodonottodotodonottodotodonottodoS1S2S3S4T:Discussingroupsandfinishitasquicklyaspossible.(幾分鐘后)T: Who’dliketobeavolunteer?Reportittotheclass.S5:…2.(和同桌一起討論，列出環(huán)保的好習慣，鼓勵學生列得越多越好。完成3。)3.(要求學生在本課找出含有but,and,while的復合句，老師核對答案并板書。)(依照文中的句子，說出類似的句子。)T:Couldyoumakesentenceswiththem?Now,