Unit10Conditionalsentences（課件）人教版英語八年級(jí)上冊

Goodmorning!CherryLifeislongifyouknowhowtouseit.——BySeneca塞內(nèi)加如能善于利用,生命乃長。Ifyoumakethepicturebig,strangeorsilly,youwillrememberitbetter.ReviewthesimplepresenttensethesimplefuturetenseWehavealreadylearnttouseconditionalsentencestotalkaboutprobableresults.ConditionalsentencesIfI’mhungry,Iwill______________.IfI’m

tired,Iwill_____________.eatsomefoodhavearestLookandsayReviewIfI’mill,__________________.IwillseeadoctorIfI’mlate,_______________.Iwillsaysorry

Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,_________________.I’llplaybasketballdoesn’trainScene1:IfIputsaltintowater,whathappenstoit?Areyousure?Itdisapears.IfIputsaltintowater,____________.itdisappearsapossibleactiontheresultthatwillcertainlyhappenOfcourse,I’msure.Scene2:WhathappensifIwateraplant?Itgrows.Areyousure?IfIwateraplant,____________.itgrowsapossibleactiontheresultthatwillcertainlyhappenOfcourse,I’msure.Scene3:WhathappensifIswitchoffthelight?Theroombecomesdark.Areyousure?IfIswitchoffthelight,_____________________.theroombecomesdark

theresultthatwillcertainlyhappenOfcourse,I’msure.Ifyoutakeafishoutofwater,_______.itdiestheresultthatwillcertainlyhappenScene4:Whathappensifyoutakeafishoutofwater?Itdies.Areyousure?Ofcourse,I’msure.Ifyouheatice,__________________itturnsintowater.apossibleactiontheresultthatwillcertainlyhappenScene5:Whathappensifyouheatice?Itturnsintowater.Areyousure?Ofcourse,I’msure.if-clause(條件)mainclause(結(jié)果)IfIputsaltintowater,itdisappears.IfIwateraplant,itgrows.IfIswitchoffthelight,theroombecomesdark.Ifyoutakeafishoutofwater,itdies.Ifyouheatice,itturnsintowater.WorkouttheruleWhenweuseaconditionalsentencetotalkaboutsomethingthatwillcertainlyhappen,bothverbsshouldbein(thesimplepresenttense/thesimplefuturetense).if從句可以放在句首，也可以放在句末。如果把if從句放在句首，常用逗號(hào)將其與主句隔