英語人教新目標(biāo)八年級(jí)上冊(cè)if引導(dǎo)的條件狀語從句的基本用法

Lookatthepicturesandmakesentenceswith“if”.If

you

go

tothepartywithKarenandAnna,you’llhaveagoodtime.If

you

wearjeanstotheparty,theteacherswon’tletyouin.RevisionIf

you

takethebustotheparty,

you’ll

belate.Ifyoustay

athome,you

willbesorry.GrammarFocusCanyoutelltheconjunction(連詞)thatconnectsthetwopartsofthesentences?Whatdoesitmean?ifclause:thesimplepresenttenseMainclause:thesimplefuturetense(will)Whattensesdothesentencesuse?What’sthemeaningof“do”here?Wewillgototheparkifit_____________(notrain)tomorrow.

含if條件狀語從句的主從復(fù)合句1.Ifyougotherebybike,youwillbelate.if條件狀語從句中，主句用一般將來時(shí)，從句用___________表示將來。遵從_________原則。doesn’t主將從現(xiàn)

rain一般現(xiàn)在時(shí)Summary2.Ifyouareill,youmustgotothedoctor.if條件狀語從句中，如果主句有must，can，may

等情態(tài)動(dòng)詞，從句用___________。

Youmuststopifthetrafficlight____(be)red.is一般現(xiàn)在時(shí)Don’twaitformeifI_____(be)late.3.Pleasecallmeifyoucomeback.if條件狀語從句中，主句是祈使句，從句用____________表示將來。am一般現(xiàn)在時(shí)Exercises_______________________,ifI’mill.

Ifitrainstomorrow,he______________________.Iwill/mustseeadoctorwon't/can'tplaybasketballMakesentencesaccordingtothepictures.Hecaneatsomerice,if___________________.

hefeels/ishungryTakearest,if_________________________.

youfeeluncomfortableyoudon'tfeelcomfortableThinkingChallengeIdon’tknowifMary________(come)tothemeetingtomorrow.Ifshe________(come),I_________(come),too.willcomeco