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群力中学九年级上册英语教案总课题Unit6TVprogrammes总课时7第4课时课题Grammar课型新授课教学目标Touseif-clausetotalkabouttheresultofapossibleaction.Touseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.教学重点Touseif-clausetotalkabouttheresultofapossibleaction.Touseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.教学难点Touseif-clausetotalkabouttheresultofapossibleaction.Touseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.教学设计Teachingaids:Acomputer,notebooksandworksheets.acalendaTeachingmethods:Listening、reading、acting&Discussing教学过程教师活动内容、方式学生活动备注(个性化设计)Step1PresentationTranslate1.如果你是个足球迷，你不会想要错过这周的节目。Ifyouareafootballfan,youwillnotwanttomissthisweek'sprogramme.2.这种情况将会持续下去除非人们停止为了皮毛和骨头而猎杀老虎。Thesituationwillcontinueunlesshumansstophuntingtigersfortheirfurandbones.3.如果你很容易被吓坏，别看了。Ifyougetscaredeasily,donotwatchit.Sumup:Weuseiftotalkabouttheresultofapossibleaction.Wemakesentenceswithiflikethis:If-clause(simplepresenttense)Mainclause(will/may/might/…+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Payattention:Weputacommaaftertheif-clausewhenitisthefirstpartofasentence.TranslatePresent教师活动内容、方式学生活动备注(个性化设计)Step2GrammarexplanationSectionA11.Completethesentenceswiththecorrectformsoftheverbsinbrackets.(TheanswersaregivenonPPT）2.Checktheanswers.3.Workouttherule!Weoftenusethesimplepresenttenseintheif-clause.Weusethesimplefuturetenseinthemainclause.SectionA21.AskingaboutanimalsMilliewatchedadocumentaryaboutanimals.HelpMillieanswerherfather'squestionswiththehelpofthewordsinthebox.2.Checktheanswers.(TheanswersaregivenonPPT）SectionB1.Tellthestudents:Wecanuseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.e.g.Hewon'tcometothepartyunlessyouinvitehim.2.Explain:Sometimeswecanuseif...nottoreplaceunless.e.g.Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.→Thesituationwillcontinueifhumansdonotstophuntingthemfortheirfurandbones.e.g.Unlessitrainstomorrow,wearegoingtoplayfootballinthepark.→Ifitdoesnotraintomorrow,wearegoingtoplayfootballinthepark.Theunless-clausecancomefirstorafterthemainclause.e.g.Unlessyoutryyourbest,youwillnotrealizeyourdream.Youwillbelateunlessyouleaverightnow.3.ExercisesonPage86.Matchthetwopartsofthesentencesandwritethecorrectlettersintheblanks.4.Checktheanswers.(TheanswersaregivenonPPT）5.Workouttherule!Weusethesimplepresenttenseintheunless-clause.CompletethesentenceswiththecorrectformsoftheverbsWorkouttheruleAskandanswerGrammarexplanationGrammarexplanationStep3Grammarsummary条件状语从句条件状语从句主要由if或unless引导：if条件句1)if条件句：条件句用于陈述语气，表示假设的情况可能发Learntheusageof“if”Grammarsummary生，其中if是“如果”的意思。e.g.Ifitrains,wewillstayathome.教师活动内容、方式学生活动备注(个性化设计)如果下雨我们就待在家里。2)用法：(1)条件状语从句通常由连词if引导，意为“如果、假如”，主句不能用begoingto表示将来，而应该用shall，will。e.g.Ifyouleavenow,youwillneverregretit.如果你现在离开，你永远都不会后悔。(2)if“如果”，引导条件状语从句，主句用一般将来时，从句则用一般现在时。e.g.Ifitrainstomorrow,Ishan’tclimbthehills.如果明天下雨，我就不爬山了。(3)主句是祈使句或含有情态动词，从句也用一般现在时。如：PleasecallmeifhecomesnextSunday.如果他下周日过来请打电话给我。（注意）宾语从句中的if与条件状语从句if的区别。宾语从句中的if“是否”相当于whether，引导宾语从句，时态需根据语境确定。如果主句用一般现在时，从句可以根据具体情况选用时态，如果主句用一般过去时，从句必须用过去式的某种形式。Unless条件句unless引导的条件句，表示强烈的否定。翻译为“除非……”“非……不可”。e.g.Youwillfailunlessyouworkharder.你不努力就会失败的。=Youwillfailifyoudonotworkharder.（注意）unless从句里的谓语只能是肯定式，因为本身unless表示否定。Learntheusageof“if”GrammarsummaryStep4Exercises单项选择。1.Ifthere________nobuyingandsellingofanimals,there_______nokillinginnature.A.is;willbeB.willbe;willbeC.is;isD.willbe;is2.I'mwaitingformyfriend._______,I'llgoshoppingalone.A.IfshecomesB.Ifshewon'tcomeC.Ifshedoesn'tcome3.Wearegoingtohaveabarbecue_______itrains.A.ifnotB.whenC.exceptthatD.unless4.Eatlessfood_______youwanttoputonweight.A.ifB.unlessC.untilD.assoonasDosomeexercisesDosomeexercisesStep5HomeworkFinishtheexercisesintheworkbook.Finishthehomework板书设计If-clause(simplepresenttense)Mainclause(will/may/might/…+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.教学反思：