Module3 Natural elements Unit 6 Electricity 课件2

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1、Unit6Module3NaturalelementsGrammarandSyllables1.GrammarGrammar:ModalverbsIcanspellallthewordswehavelearnt.Canyoudothat?Yes,Ican.No,Icannot/can’t.AcanandcannotGametimeWhatcanyoudo?Tellthestudentbehindyouandaskifhe/shecandoit.Thenextstudentshouldrepeatthiswithanotherstudent.Example:No,Ican’t.Icansing

2、.Canyousing?Yes,Ican.Ican…Canyou…?Icanswim.Canyouswim?Weusethemodalverbscanandcannot(can't)tosayweableorunabletodosomething.Wecanuseelectricitytodomanythings.Wecannot/can'tseeelectricity.Canyouthinkofanexample?Yes,Ican./No,Icannot/can't.Nowreadthefollowingsentences.Hiplayfootall.Lopaint.Hispeakas

3、manylanguagesasLo.BothHiandLodance.Lodriveacar,butheplaychess.Hiswim,butheplaytheguitar.cancannotcannotcancannotcancancannotYouwillbegivenseveralsituations.Afterreadingthedescriptionsandlookingatthepictures,decidewhatyouwouldsayinthesesituations.a.Amanisgoingtoseehisboss.Heisstandingatthedoorway.May

4、Icomein?b.Astudentisgoingtoasktheteacheraquestion.MayIaskyouaquestion?c.Aboyisthirsty.Heisaskinghismotherforsomething.MayIhavesomewater?d.Ashopassistantisservingacustomer.MayIhelpyou?Weusemayandmaynottoaskforandgivepermission.Inlessformalsituations,somepeopleliketousecanandcannot(can’t)forthesamepur

5、pose.“May”canbeinterchangedwith“can”,butit’salittlemorepolitetouse“may”.BmayandmaynotMay/CanIuseyourmobilephone?Yes,youmay/can.No,youmaynot/can’t.Youmay/canturnontheTV.Youmaynot/cannotplayinthekitchen.Readthefollowingsentences.CmustandmustnotWhatdothesesignsmean?（Youmustn’tsmokehere.）（Youmustn’tcli

6、mbthisladder.）（Youmustn’tswimhere.）（Youmustn’tuseyourmobilephonehere.）Weusemustandmustnot/mustn’ttotellpeoplewhattodoorwhatnottodo.Readthefollowingsentences.Youmustnot/mustn’tdothat,Benny!Wemustalwaysbecarefulwithelectricity.Theymustnot/mustn’tplayneartheheater.Aftermodalverbssuchascan,mayandmust,w

7、euse(thebaseform/the-ingform/the-edform)ofaverb.WorkouttheruleSpeakupa.Whatishegoingtodo?Heisgoingtochangethebulb.b.Canhedoitnow?No,hecan’t.c.Whyorwhynot?Becausehemustswitchofftheelectricityfirst.2.Le