GrammarWhatwillhappenifwegrowmorebamboo?Ifwegrowmorebamboo,giantpandaswillhavemorefood.Whatwillabeardoifitisindanger?Ifabearisindanger,itwillattackpeople.Whatwillapolarbeardoifitishungry?Ifapolarbearishungry,itwillcatchfishfromthewater.Whatwillelephantsdoiftheyarethirsty?Elephantswillwalktilltheyfindariveriftheyarethirsty.Whatwilltigerdoiftheyliveinthewild?Tigerswillhuntfortheirownfoodiftheyliveinthewild.Whatwillmalewolvesdoifthereisdanger?Malewolveswillprotecttheirfamiliesifthereisdanger.1.__youareafootballfan,youwillnotwanttomissthisweek’sprogramme.2.__youenjoysolvingmysteries,youmightlikethisfilm.However,__yougetscaredeasily,donotwatchit!3.__youareananimal-lover,youmayfeelsadaboutit.IfIfifIfif引导的条件状语从句If-clause(simplepresenttense)Mainclause(will/may/might/…+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouenjoysolvingmysteries,youmightlikethisfilm.Ifyouareananimal-lover,youmayfeelsadaboutit.Weputacommaaftertheif-clausewhenitisthefirstpartofasentence.Whatcanyoudoifyourchildbehavebadlyinapublicplace?Wecanalwaysgetataxiifthere’saproblemwiththecar.Plasticwillmeltifitgetstoohot.Wedonotuseacommaifthemainclausecomesfirst.•1.Ifyoueatmyfood,Iwon’ttalktoyou.-----Iwon’ttalktoyouifyoueatmyfood.2.IfIdon’thavefood,Iwilldie.-----IwilldieifIdon’thavefood.一般现在时从句一般将来时主句主将从现主将从现1.Diana(willgo/go/goes)toEuropeifshe(willpass/pass/passes)theexams.2.Thegraduates(willteach/teach/teaches)inthepoorvillageiftheMinistryofEducation(willagree/agree/agrees)soon.3.Ifthere(willbe/are/is)acaraccident,they(willcall/call/calls)110forhelpatonce.if引导的条件状语从句条件状语从句在复合句中表示主句动作发生的条件。If意思是“如果；假如”，表示在某种条件下某事很可能发生，如：•Ifitdoesnotraintomorrow,wewillgohiking.•Youwillgetgoodgradesifyoustudyhard.在if引导的条件状语从句中，主句中的动词常用一般将来时，从句中的动词用一般现在时。如：•Ifyouaskhim,hewillhelpyou.•TheyaregoingtohaveapicniciftheyarefreenextSaturdayif引导的条件状语从句•在if引导的条件状语从句中，主句也可含有情态动词或是祈使句。如：•Ifitisfinetomorrow,wecangoandflythekite.•Don’tmisstheprogrammeifyoulikemusic.注意：在if引导的条件状语从句中,如果谈论的是某一个动作发生后势必会产生某个结果，那么主从句都用一般现在时态。e.g.Ifyouboilwater,itbecomessteam.Ifyoudropaglass,itbreaks.Ifyouheatmetal,itmelts.Ifyourun,yousweat.Afish_________(die)ifyoutakeitoutofwater.dieif引导的条件状语从句主现从现主现从现1.Ifhe_______(watch)theanimalcarefully,he________(get)enoughinformation.2.Ican’tfinishtheworkifyou_________(nothelp)me.3.Ifyoudon’tgotheretomorrow,I________(notgo),either.4.____________(notcross)theroadifthelight______(be)red.5.Ifagiantpanda_______(have)nofood,it_______(die).watcheswillgetdon’thelpwon’tgoDon’tcrossishaswilldie用所给词的适当形式填空。•6.Ifyou____(feel)tired,you_____(have)tohavearest.•7.Where___he____(see)thefilmifhe___(have)time?•8.Ifthere___(be)fewertrees,there______(be)morepollution.•9.He_________(dress)morecasuallyifhe___________(notwork)onweekends.•10.Ifyouputwoodintowater,it__________(float)漂浮.用所给词的适当形式填空。feelhavewillseehasarewillbewilldressdoesn’tworkfloatsA:Mum,canIplaybaseballnow?B:Haveyoufinishedyourhomework?A:Oh,notyet.B:Unlessyouhavefinishyourhomework,Iwon'tallowyoutoplayoutside.1.Unlessyoutakemorecare,you’llhaveanaccident.2.You’llfailinE...
