SectionA3a-3cObjectivesToreviewtheconditional

if+will:—Whatwillhappenifthey…—Ifthey...,…will/won’t…Towriteastorywithif……if從句主句位置：if引導(dǎo)的條件狀語(yǔ)從句，既可放在主句之前，也可放在主句之后。當(dāng)從句置于主句之前時(shí)，常用逗號(hào)與主句隔開(kāi)。Ifyoutakethebustotheparty,youwill

belate.這個(gè)句子可以改寫(xiě)為：Youwillbelateifyoutakethebustotheparty.if從句主句

條件狀語(yǔ)從句表示主句動(dòng)作發(fā)生的條

件，通常由if來(lái)引導(dǎo)，意為“如果”。時(shí)態(tài)：1.如果主句是一般將來(lái)時(shí)，從句常用一般現(xiàn)在時(shí)。即應(yīng)遵循“主將從現(xiàn)”的原則，If

shecomestoseemetomorrow,I’ll

behappy.Ifitsnowstomorrow,Iwillnotgotothepark.won’t2.如果主句含有must/can/may

等情態(tài)動(dòng)詞，從句一般用___________。

Youmuststopifthetrafficlight____(be)red.is一般現(xiàn)在時(shí)3.如果主句是祈使句，從句也常用___________。

一般現(xiàn)在時(shí)Pleasestayathomeifit_____

(rain)tomorrow.rainsWhattensesdothesentencesuse?一般現(xiàn)在時(shí)一般將來(lái)時(shí)HaveALk1.—IthinkI’lltakethebustotheparty.—Ifyoudo,you’llbelate.2.—IthinkI’llstayathome.—Ifyoudo,you’llbesorry.3.—Whatwillhappeniftheyhavethepartytoday?—Iftheyhaveittoday,halftheclasswon’tcome.4.—Shouldweaskpeopletobringfood?—Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.1.—IthinkI’lltakethebustotheparty.—Ifyou_____(do),you__________(be)late.2.—IthinkI’llstayathome.—Ifyou_____(do),you___________(be)sorry.3.—Whatwillhappeniftheyhavethepartytoday?—Ifthey______(have)ittoday,halftheclass____________(notcome).4.—Shouldweaskpeopletobringfood?—Ifwe_____(ask)peopletobringfood,they______just_____(bring)potatochipsandchocolate.dowillbedowillbehavewon’tcomeaskwillbringgo

Ready?Combine

two

sentences.Example:a.Youthinkyou’regoingtovisitNewYorkCity.b.Youwillseesometallbuildings.→IfyougotovisitNewYorkCity,you’llseesometallbuildings.1.a.Youthinkyou’regoingtostudyEnglishhard.b.YouwilldobetterinEnglish.2.a.Youthinkyou’regoingtoeatanddrinkmore.b.Youwillbefatter.→IfyoustudyEnglishhard,you’ll

dobetterinEnglish.→Ifyoueatanddrinkmore,you’ll

befatter.3.a.Theythinktheyaregoingtodomoreexercise.b.Theirhealthwillbebetter.4.a.IthinkyouaregoingtoletmewatchTV.b.Iwillstayathome.→Theirhealthwillbebetterifthey

domoreexercise.→IwillstayathomeifyouletmewatchTV.1.IfIgetuplatetomorrow,________________________________2.IfIdon’tfinishmyhomework,________________________3.IfIdon’tgetenoughexercise,____________________________4.Iwillnothaveenoughtimetostudyif____________________5.Iwillnotmakeanyfriendsif______________Completethesentencesusingyourownideas.I’llmissthebus.myteacherwillbeunhappy.Iwillbeunhealthy.Iplaycomputergameseveryday.Iamtooshy.

Writeastorywithyourgrouponapieceofpaper.Thefirstpersonbeginsthestorywith“IthinkIwill…”Theothersaddsentenceswith“if”.Thenreadthestory.GroupworkIthinkIwillgototheconcerttonight.IfIgototheconcert,Iwon’tfinishmyhomework.IfIdon’tfinishmyhomework,…Ⅰ.根據(jù)句意及所給提示完成句子。1.Ifyoudon’tgotoschool,________________________(teacher,beangry).2.IfTinadoesn’tstudyhard,__________

_____________(failtheexamagain).3.Ifyougototheparkwithus,________

______________(haveagreattime).4.Ifyoudon’tleavenow,_____________

__________(catchthelastbus).5.Ifyouareamoviestar,_____________

__________

(befamous).

theteacherwillbeangry

shewillfailtheexamagain

youwillhaveagreattime