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ID:37518624
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页数:17页
时间:2019-05-11
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1、条件状语从句的用法巴州和静县第一中学设计者:李彩凤条件状语从句由引导词if或unless引导的状语从句叫做条件状语从句。在英文中,条件是指某一件事情实现之后(状语从句中的动作),其它事情(主句中的动作)才能发生,通常译作“假如”。(注意:在含有条件状语从句的复合句中,表示将来时态,主句是一般将来时态,从句要用一般现在时,[主将从现原则](主将从现,将并非指将来时,还只表示将来含义的,跟着if后的那句话是从句。)Itwillbesunnytomorrow.Findtherule(1)Wewillhaveapicnictomorrow.Findth
2、erule(1)Wewillhaveapicnicifit’ssunnytomorrow.Itwillbesunnytomorrow.Wewillhaveapicnictomorrow.IwilltakepartintheEnglishcompetition.Findtherule(2)Dadwillbuyapenforme.Findtherule(2)DadwillbuyapenformeifItakepartintheEnglishcompetition.IwilltakepartintheEnglishcompetition.Dadwil
3、lbuyapenforme.Wewillgotothepark.Itwon’traintomorrow.Wewillgototheparkifitdoesn’traintomorrow.Findtherule(3)if条件状语从句中,主句用一般将来时,从句用一般现在时表示将来。Ifyouwon’thurryup,youwillmisstheearlybus.Ifyoudon’thurryup,youwillmisstheearlybus.What’stherule?(1)Ifyou...,youwill...if条件状语从句中,如果主句有mus
4、t,can,may等情态动词,从句用一般现在时。Youmuststopifthetrafficlightisred.Youmaygofishingifyouarefree.Hecangohomeifhefinisheshishomework.What’stherule?(2)if条件状语从句中,如果主句是祈使句,从句用一般现在时。Letmeknowifhecomes.Don’twaitformeifIamlate.Putupyourhandsifyouhaveanyquestions.What’stherule?(3)2.If条件状语从句中,如
5、果主句有must,can,may等情态动词,从句用一般现在时。(主情从现)3.If条件状语从句中,如果主句是祈使句,从句用一般现在时。(主祈从现)1.If条件状语从句中,主句用一般将来时,从句用一般现在时表示将来。(主将从现)Rules3.IfMary(buy)thebook,shewilluseupallhermoney.1.IfI(be)free,I’llvisitmyauntnextSunday.4.IfI(study)hard,I’llwintheEnglishcompetition.2.Ifit(be)coldtomorrow,Iwi
6、llwearmysweater.amisbuysstudyExercise(1):5.IfaUFO(land)infrontofme,I(go)intolookforthealien.landswillgoExercise(2):1.Callmeiftheboss(willcome/comes).comes2.Shemustseeadentistifshe(has/willhave)atoothache.has3.Haveagoodrestifyou(willbe/are)tired.are4.Youcangoshoppingwithyours
7、isterifyou(have/willhave)timethisafternoon.have5.Ifthere(willbe/is)acaraccident,they(willcall/call)110atonce.iswillcall你会了吗?只要你常练习,你一定能掌握知识!谢谢你的观看!下次我们再相见!
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