八年级英语下册Unit6EnjoyingCyclingTopic3bicycleridingisgoodrciseSectionB教学仁爱版.ppt

Unit6EnjoyingCyclingTopic3BicycleridingisgoodexerciseSectionB,Teachingaims1.Learnsomenewwordsandexpressions:careless,helmet,light-colored,getafine,beindanger,makeawrongturn.2.Learntheusagesofadverbialclausesofcondition.(1)Ifwebreakthetrafficrules,wemaygetafineandevenbeindanger.(2)Ifwerideatnight,weshouldhavelightsonthebicycleorwearlight-coloredclothes.3.Talkaboutthetrafficrulesandwarnings.,Ifweridetoofast,wemay,gethurt.,Talk,Ifweridetoofast,wemay,haveanaccident.,beindanger.,Infact,weshouldneverridetoofast.,Project,WorkingroupsandplaytheIfChainGame.,Example:StudentOne:Ifyouridetoofast,youmayhaveanaccident.StudentTwo:Ifyouhaveanaccident,youmayhurt.StudentThree:Ifyouarehurt,youwontbeabletogotoschool.StudentFour:,Ifweride,wemust,wear_.,ride_,obey_.,slowly.,helmets(头盔).,thetrafficrules,Trafficlights,Redmeansstop.Greenmeansgo.Yellowmeanswait.,Crossing,Itwarns(警告)ustobemorecareful.,Turnright,Noleftturn,Turnleft,Norightturn,Gostraight,IfIdriveandseethissign,whatshouldIdo?,IfIdriveandseethissign,Ishouldturnleft/right.,IfIrideabikeandseethissign,whatshouldIdo?,IfIrideabikeandseethissign,Ishouldnotrideabike/turnleft.,Lookatthepictures.Theexpressionsundereachpicturemayhelpyou.,IfIbreaktherules,Iwillgetafine.,breaktherulesgetafine,IfIbreaktherules,whatwillhappen?,IfIcrossabusyroad,whatwillhappen?,IfIcrossabusyroad,Iwillbeindanger.,crossabusyroadbeindanger,makeawrongturncausetrouble,IfImakeawrongturn,Imaycausetrouble.,IfImakeawrongturn,whatmayhappen?,Ifyoudontdrivecarefully,whatwillhappen?,Ifyoudontdrivecarefully,youwillgethurt.,notdrivecarefullygethurt,Matchthetwopartsofthesentencestomaketrafficrules.,()1.Ifyourideatnight,()2.Ifyourideonthestreet,()3.IfyoudriveacarinEngland,()4.Ifyoudrivetoofast,()5.Ifeveryoneobeysthetrafficrules,()6.Ifyouparkyourcarinthewrongplace.,A.youmustbecareful.B.youmayhaveanaccident.C.theroadswillbesafer.D.youmustdriveontheleft-handsideoftheroad.E.youshouldhavelightsonthebicycleorwearlight-coloredclothes.F.youwillgetafine.,A/E,A,D,B/F,C,F,条件状语从句(1)常由if引导，从句可以放在主句之前也可以放于主句之后。如：IfIbreaktherules,Iwillgetafine./IwillgetafineifIbreaktherules.(2)条件状语从句的时态：a.若主句的动词是一般将来时，从句的谓语动词就用一般现在时，如：IfIcrossabusyroad,Iwillbeindanger.b.在主句中含有can,should,must等情态动词时，从句要用一般现在时，如:IfImakeawrongturn,Imaycausetrouble.,Exercise:translatethesentences.,1.如果我们违反交通规则，我们将会受罚甚至会有危险。,Ifwebreakthetrafficrules,wewillgetafineandevenbeindanger.,3.如果你骑车不小心，可能会出事故。,Ifyoudontridecarefully,anaccidentmayhappentoyou.,4.如果发生事故，你可能会受伤。,Ifanaccidenthappens，youmaygethurt.,2.如果在大街上骑车，你必须要小心。,Ifyourideonthestreet,youmustbecareful.,Listento1aandpletethesentences.,Weshouldneverride_.Weshouldwearbicycle_whenriding.（句中的whenriding=whenweareriding。当主句和从句的主语相同时，从句的主语和be动词可省去）如：Iwasdancingwhensinging.Weshouldhave_onthebikeorwear_clotheswhileridingatnight.Weshouldlearnmoreaboutthe_.,toofast,helmet,lights,light-colored,trafficrules,Whatshouldwedotostaysafewhenridingbicycles?,Accordingto1aandfillintheblanks:K:Thebicycle_inCaishikouStreetwasreally_.M:Yes,itwas.Theyoungman_thebicyclewastoo_.K:In_,weshouldneverridetoofast.Wecanwearbicycle_whenriding.Ifwerideat_,weshouldhavelightsonthebicycleorwear_clothes.M:Certainly.Weshouldalsoknowmoreaboutthetrafficrules.Ifwe_thetrafficrules,wewillgeta_andevenbein_.K:Whydontwegotothetraffic_tolearnmoretrafficrules?M:Thatsagood_.,accident,terrible,on,careless,fact,night,light-colored,break,fine,danger,station,idea,helmets,Welearn:头盔helmet左边的left-hand罚款fine浅色的light-colored十字路口crossing遵守交通规则obeythetrafficrules违反交通规则breakthetrafficrules“if”clauses:Ifwerideatnight,weshouldhavelightsonthebicycleorwearlight-coloredclothes.Ifwebreakthetrafficrules,wewillgetafineandevenbeindanger.WecanTalkabouttrafficrulesandsigns:Weshouldneverridetoofast.Weshouldwearbicyclehelmetswhenriding.,Summary,Task1ReciteSectionBTas