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同单元异构教案

Unit4Roadsafety(Thesecondperiod)
-------GrammartimeandFuntime
常开娟

Step1.Greetings.
Step2.Songtime.
T:Todaywe’llgoonlearningUnit4Roadsafety.First,let’ssingasong.Twinkle,twinkle,trafficlight.
S:…
T:Good.Howmanycolorsdoestrafficlightshave?
S:…
T:Whatcolorarethey?
S:….
T:Whatdoesred/green/yellowmanmean?
S:Itmeans…
Step3.Talkshow
T:Wecanseethetrafficlightsinthepicture.Whatelsecanwesee?
What’sthis?
S:It’sazebracrossing….(reviewsomenewwords)
T:Trytosaysomethingaboutthispicture,please.
S:…
Step4.Revisiontime
T:Good,Ithinkyou’regoodatEnglish.Doyoudowellontheroad?
S:Yes.
T:There’resomebusyroadsinthecity.Howcanyoucrossthemsafely?
S:…
T:Howcanyoucrossthemsafelywhenthereisnozebracrossing?
S:…
T:Whatmustwenotdoontheroad?
S:…
Step4.Videotime.
T:Ithinkyouknowtheruleswell,buthowabouttheoldgrandma?Doessheknowtherule?Nowlet’slookather.
S:…
Step5.Showtime
T:Isitfunny?
S:Yes.
T:Whatdoesshesay?
S:Thecricketisreallylucky.
T:Ithinkthegrandmaisverylucky.Doessheknowtherule?
S:No.
T:Nowlet’shelpher.Let’stellherhowtocrosstheroadsafely.
Firstofall,workinpairs.Andthenshowyourperformancetothewholeclass.
Step6Grammartime
T:Boysandgirls,payattentiontotheredwords.Whatisit?Isitanoun?
Isitaverb?It’samodalverb.Canwedeletethemodalverbs?
S:…
T:Nowlet’scomparethetwosentences.
Youlookforazebracrossing.
Youmustlookforazebracrossing.
Whocanreadthem?
S:…
T:Whocantryagain?
Youfirstlookleft.
Youmustfirstlookleft.
S:…
T:Whichoneisbetter?Why?YoucanspeakinChinese.
S:…
T:Yes.“must”hereisusedtosaythatsomethingisnecessaryandit’sveryimportanttodothat.Thefirstoneisjustdescribeonething,thereisnoemotion.
Youmustfirstlookleftmeansyoumustn’tfirstlookright.
讲解mustn’t
Andwemustaddoriginalformafterthemodalverbs.
Step7Practicetime
1.T:Let’stalkaboutthepicturesandknowmorerules.Let’strytousemustandmustn’tcorrectly.Lookatthepicturesandsayoutasentence.Wemust…/Wemustn’t…
P1.S1:Wemustn’tjumptheredlight.
T:Ifyouwerethepoliceman,whatdoyousaytohim?
S:…
P2.S2:Wemustwalkonthepavement.
P3.S3:Wemustn’tclimbovertherail.
T:Whatmayh