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1、Unit1LifeonMarsGrammar1FillintheblanksThismorning×××waslate.Ifhewantedtocomeintotheclassroom,heshouldsay,“________________”IfIwanttoborrowadictionaryfromastudent,Ishouldsay,“_______________________________________”.MayIcomein?CanIuseyourdictionary?NowIfastudentwantstoborrowabookfromme,whatsh
2、ouldhe/shesay?——CouldIuseyourbook,MrZhao?——Yes,you__________.canCouldIuseyourdictionary?CanIuseyourdictionary?Canyoushowuswhatthetwowordsmean?Fromthewordsabove,wecanknowthatwecanuse‘can’,‘could’,‘may’,‘might’totalkaboutpermission,andthesefourwordshavedifferentdegreesofformality.informalcanus
3、edtoaskifitisOktodosthformalcouldoftenusedtoaskpermissionfromstrangers,oldpeople,teachersandbossesFormalandpolitemayusedinformalsituationstoaskifitisOKtodosthVeryformalmightveryformalbutseldomusedUsage1ChoosethebetterwordsforSimon!Dad,_____(may,could)Itakeyourcamera?Yes,you____(can,may).coul
4、dcan_______(May,Can)Iborrowthishelmet?No,you________(couldn’t,maynot).Maymaynot________(Might,Can)Iborrowyourboots?Yes,you_______(can,may).CancanUsage2Afterborrowingthethingsheneeds,Simonspeakstohismum.Readthedialogueandfillintheblankswithmay,can(not),must(not),needn’t,oughtto.S:Mum,________
5、Iuseyourcomputer?Iwanttosearchforsomeinformation.M:Sorry,you________useitnow.Iambusy.AndIthinkyou___________spendmoretimeonyourhomework.S:______Idoitnow?M:Well,you________.Afterlunch,you______havearest.Thendoyourhomework.You_______usethecomputerafteryoufinishyourwork.Butyou_________playcompu
6、tergames.couldcan’toughttoMustneedn’tmay/canmay/canmustn’tUsage3Aftergettingenoughinformation,Simonneedssomefriendstomakethespacekittogether.HecallsDanielandMillie.Readthedialogueandfillintheblankswithmay,can(not),must.M:Someoneisknockingatthedoor.______ItbeLucy?S:It_____beLucy.Ididn’tcallhe
7、r.Ithinkit____beDaniel.Ah,yes!Daniel,comein.(5minuteslater,someoneelseknocksatthedoor.)S:Mum,pleaseopenthedoor.It_____beMillie.I’msure!Cancan’tmaymust1.Whatdodriversdowhenthetrafficlightsturnred? They_____stopandwaittillthegreenlight. A.must B
