初中英语上册第三单元therebe句型讲课件

第三课时ProtectTheEarth第一课时讲授这一单元的单词，以及重点单词拓展开来的各类词性，搭配及短语。课本readingA部分由图片展开的而引出的关于地球的话题。重要的单词,短语：earth---onearth，report---makeareport,land---ontheland,fact---infact,put…into…throwaway重要搭配：providesbwithsth=givesbsth=offersbsth给某人提供某物=providesthforsb=givesthtosb=offersthtosbprotectsbfromsth保护某人免受….的影响protectsbfromdoingsth词性变换:protect(v.)---protection(n.)---protective(adj.)保护pollute(v.)---pollution(n.)---polluted(adj.)污染important(adj.)---importance(n.)重要own(adj.)---owner(n.)自己的，主人第二课时做本单元的reading理解训练，获取信息，分析课文以及各段落内容，理解课文内容。以及引导从认识地球到保护地球的意识上的转变。第三课时1.复习第一课时的重点单词，短语，搭配。做课堂练习一，二，三2.分小组朗读课文，熟悉课文内容。3.由课文的结构引出并讲解therebe句型知识，1）therebe句型，是一个存在句，表示某地有某物/某物在therebe句型中，be动词的具体形式由主语的单数，复数和“就近原则”决定。主语是单数，be动词用is(was):Thereisanappleonthetable.否Thereissomewaterintheglass.否主语是复数,be动词用are(were):Therearesomeapplesonthetable.否“就近原则”，如果说有几件物品时，be动词由与它最近的名词的单复数决定。Thereisanappleandtwoorangesonthetable.否Therearetwoorangesandanappleonthetable.否小结：therebe句型的否定句在be动词后加notsome用在肯定句，any用在否定句或疑问句And用在肯定句，or用在否定句2）疑问句：一般疑问句，把be动词提到句首。①Thereisanappleonthetable.疑Isthereanappleonthetable?----Yes,thereis./No,thereisnot(isn’t).②Therearesomeapplesonthetable.疑Arethereanywaterintheglass?----Yes,thereare./No,therearenot(aren’t).特殊疑问句，一般针对划线部分提问。③Therearetwoappleonthetable.Howmanyapplesarethereonthetable?Thereissomewaterintheglass.④Thereisanappleonthetable.(对主语提问)What’sonthetable?主语是物用what’s提问⑤thereisalittleboyintheroom.(对主语提问)Who’sintheroom?主语是人用who’s提问3）therebe句型与have(has)区别Therebe表示某地有什么(存在状态)sbhave/has某人有什么(拥有)Ihavealotoffriendsintheclassroom.在教室里我有很多朋友。Therearealotofstudentsintheclassroom.教室里有很多学生。课堂练习一．词汇翻译。1.Earth_________________在地球上_________________2.report_________________作报告_________________3.land_________________在陆地上_________________4.protect_________________保护地球_________________5.energy_________________生产能源_________________二．词形转换。1.protect(名词)________________2.pollute(名词)________________3.important(名词)________________4.large(同义词)________________5.problem(同义词)________________三．选出可替换划线单词的选项。()1.TheEarthprovidesuswithair,waterandfood.A.givesB.shows()2.Weburnthingstomakeenergy.A.set…onfireB.make…verystrong()3.Thispollutestheair.A.makes…cleanB.makes…dirty()4.ThispollutestheEarthandkillsanimalsandplants.A.cleansB.makes…die()5.ItisimportantforustoprotecttheEarthforourfuture.A.keep…safeB.change四．选择题。()1.TheEarthprovidesus_________air,waterandfood.A.onB.withC.forD.in()2.There_________grassinaforest.A.haveB.areC.isD.has()3.There_________aruler,threepensandsomeerasersinthepencil-case.A.hasB.isC.areD.have()4.Thereis_________inthebottle.It’s_________.A.anything,fullB.anything,emptyC.nothing,fullD.nothing,empty()5.Thesunprovidesus_________lightandheat.A.forB.withC.inD.of()6.There_________onthewall.Theyareverybeautiful.A.arephotoesB.arephotosC.isaphotoD.isphotos()7.Theboyshavegot_________already.A.twobreadB.twobreadsC.twopiecesofbreadD.twopieceofbread()8.There_________some_________intheriver.A.is,fishB.are,fishsC.is,fishsD.are,fish()9.There_________two_________inthebox.A.is,watchB.are,watchesC.are,watchD.is,watches()10.Mr.Whitehasthree_________.A.childB.childrenC.childsD.childrens()11.Therearemany_________inthefridge.A.fishB.fruitC.eggsD.bread()12.Therearethree_________andseven_________inthepicture.A.cows,sheepsB.cows,sheepC.cow,sheepD.cow,sheeps()13.There_________notanywaterintheglass.A.hasB.isC.areD.have()14._________anyflowersonbothsidesofthestreet?A.IsthereB.ArethereC.HasD.have()15.There_________greatchangesinourcountrysince1979.A.havebeenB.wereC.hasbeenD.Are五．用therebe句型的适当形式填空。1.A:Howmanydays_________(there/be)inMarch?B:_________(there/be)31days.2.A:_________(there/be)alotofATMmachinesinmostbanks?B:Yes,_________(there/be)ATMmachinesinmostbanks.3.A:YuGardenisverycrowded.B:Yes._________(there/be)alwayslotsofpeopleinYuGarden._________(there/be)someverygoodrestaurantsthere.4.A:_________(there/notbe)aswimmingpoolatmyschool.B:Really?_________(there/be)oneatmyschool.A:You’relucky!_________(there/notbe)manyschoolswithswimmingpools.课后作业一．翻译。1.看！天空中有奇怪的东西。Look!____________________________________inthesky.2.没有水，地球上就没有生命。Withoutwater,___________________________nolifeonearth.3.冰箱里有多少冰激凌。__________________icecreams__________________inthefridge?4.黑板在我的课桌面前。__________________ablackboardinfrontofmydesk.5.一些学生在操场上。__________________somestudentsontheplayground.6.我会提供聚会的食物。I’ll_________thefood_________theparty.二．改错。1.Thereare20manteachersinoutschool.__________________________________________________________________2.Thereareabookandtwopensonthedesk.__________________________________________________________________3.Howmuchbananasdoyouhave?__________________________________________________________________4.Istheresomethingwrong?__________________________________________________________________5.Therearemuchpollutionintheworldnow.__________________________________________________________________6.Therewillgoingtobeafootballmatchinourschool.__________________________________________________________________7.Ihavealothomeworktodo._________________________________________