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初中仁爱版八年级下册Unit6EnjoyingCyclingTopic3Bicyclesarepopular.SectionBLookatthetrafficsigns.Read1abyyourselves.Kangkang:ThebicycleaccidentinCaishikouStreetwasreallyterrible.Michael:Yes,itwas.Theyoungmanonthebicyclewasverycareless.Kangkang:Infact,weshouldneverridetoofast.Wecanwearbicyclehelmetswhenriding.Ifwerideatnight,weshouldhavelightsonthebicycleorwearlight-coloredclothes.Michael:Certainly.Weshouldalsoknowmoreaboutthetrafficrules.Ifwebreakthetrafficrules,wewillgetafineandevenbeindanger.Kangkang:Whydon’twegotothetrafficstationtolearnmoretrafficrules?Michael:That’sagoodidea.Nowlistentothetapeandtalkaboutitingroups.Thenretell1a.Keypoints1.Wecanwearbicyclehelmetswhenriding.当我们骑车时，我们要戴上头盔。1)wear用作及物动词，除表示“穿衣戴帽”之外，还可以表示“戴眼镜、首饰”等。如：Sheneverwearsnecklace.她从来不戴项链。Anyonecantellshe’sblindasabat,butshewon’twearglasses.任何人都知道她视力不好,但是她却不愿戴眼镜。2)whenriding=whenweride，当主从句的主语一致时，从句可用连词+分词的形式代替，复合句变为简单句。又如：Youmustbecarefulwhenyoucrosstheroad(=whencrossingtheroad).过马路时，你一定要小心。[拓展]类似用法的词还有：while,if等。如：Whilewalking,hetalkstohisfriend.他一边走路，一边跟朋友交谈。2.Ifwerideatnight,weshouldhavelightsonthebicycleorwearlight-coloredclothes.如果在晚上骑车,我们就得使用车灯或穿亮色的衣服。if在引导条件状语从句时,主句是一般将来时,祈使句、或含有情态动词时,从句用一般现在时。如:Ifit’sfinetomorrow,wewillgotothepark.Ifweweardifferentcolorsofclothes,itcanchangeourfeelings.1bWorkaloneTrafficlightsRedmeans_______Greenmeans_____Yellowmeans“wait”PleasehelpMichaelandKangkangcompletethetrafficrulesandsigns.Fillintheblanksordrawthetrafficsigns.stopgoCrossingThereisacrossingahead.Itwarnsustobemore_________.carefulDangerIt’sdangerous.NoleftturnYoucan’tturnlefthere.GostraightaheadGoalongtheraod,please.KeypointsItwarnsustobemore…它提醒我们要更……warnsb.todosth.警告/提醒某人做某事warnsbagainst/nottodosth.警告/提醒某人不要做某事如：Thedoctorwarnsustodrinkmorewater.医生告戒我们要喝水。Thepolicewarnchildrennottoplayontheroad.警察警告孩子们不要在马路上玩。Hewarnedmeagainstgoingthereatnight.他警告我晚上不要到那里去。Matchthesentencesaccordingtothetrafficrules.2Workalone1.Ifyourideatnight,2.Ifyourideyourmotorcycleonthestreet,3.IfyoudriveacarinBritain,4.Ifyoudrivetoofast,5.Ifeveryoneobeysthetrafficrules,a.youmustbecareful.b.youmayhaveanaccident.c.theroadswillbesafer.d.youmustdriveontheleft-handsideoftheroad.e.Youshouldhavelightsonthebicycleorwearlight-coloredclothes.GroupworkLookatthepictures.Use“if”todiscusstheresultsofbreakingthetrafficrules.Thefollowingexpressionsmayhelpyou.Ifyoubreaktherules,youwillgetafine.breaktherules,getafineIfyoucrossabusyroad,youmaybeindanger.crossabusyroad,beindangerIfthedrivermakesawrongturn,hewillcausetrouble.makeawrongturn,causetroubleIfthedriverdoesn’tdrivecarefully,hewillgethurt.notdrivecarefully,gethurt1.Manypeoplearoundtheworldusebicyclesfor______or________.2.Carsoftencost____________timesasmuchasbicycles.workpleasureonehundred4WorkaloneListentothepassageandfillintheblanks.3.Bicyclesneed___________thancars.4.Cyclingdoesnotcause____________.5.Cyclingisauseful_______anditisgoodforour______.lessspaceairpollutionsporthealthHomework1.FindmoretrafficrulesandsignsontheInternet.2.Retell1ausingyourownwords.