2023年英語中考語法專題講解

If條件從句總結(jié)及練習(xí)If條件狀語從句

如果1.如果沒下雨，我們會去購物。Ifitdoesn'train,wewillgoshopping.（主將從現(xiàn)）2.如果沒下雨，我們?nèi)メ烎~吧。Ifitdoesn'train,let'sgofishing.(主祈從現(xiàn))3.如果沒下雨，我們可以去看電影。Ifitdoesn'train,wecangotoamovie.（主情從現(xiàn)）1.如果你起晚了，上學(xué)將會遲到Ifyougetuplate,youwillbelateforschool.2.如果明天下雨，我們就不去長城了。Ifitrainstomorrow,wewon’tgototheGreatWall.一，主句中有will,won’t等表示將來的意義，從句用一般現(xiàn)在時，也就是________________。主將從現(xiàn)如果她足夠友好的話，我可能會幫助她。Ifsheisfriendlyenough,Imay/mighthelpher.二,情態(tài)動詞可以表將來，主句中含有can,may,must,should,might等情態(tài)動詞時，從句用一般現(xiàn)在時。也就是__________。主情從現(xiàn)1.如果你想看點讓人愉悅的，選擇《木蘭傳》吧。

Ifyouwanttoseesomethingenjoyable,chooseMulan.2.如果他來了，要讓我知道。Ifhecomes,letmeknow.三，祈使句發(fā)生的動作也在將來，主句是祈使句，從句用一般現(xiàn)在時，也就是___________。主祈從現(xiàn)他一回來我就打電話給你。1.Iwillcallyouassoonashecomesback.2.Iwillcallyouwhenhecomesback.3.Iwillcallyouaslongashecomesback.4.Iwon'tcallyouuntilhecomesback.主將從現(xiàn)，還有unless,when，assoonas,aslongas,not…until

1.Ifyouworkhard,you’llpasstheexam.=Workhard,andyouwill

passtheexam.轉(zhuǎn)換:2.Ifyoudon’thurryup(快點),youwillbelate.=Hurryup,oryouwillbelate.=Youwillbelate

unlessyouhurryup.除非正面結(jié)果用and；反面結(jié)果用or或unless1.Ifhe___harder,hewillcatchupwithussoon.AstudyBstudiesCwillstudy2.IwillgoswimmingwithyouifI___freetomorrow.AwillbeBwasCam

3.Ifyou___achancetostudyinaforeigncountry,justtakeit.AgettingBwillgetCgetBCC4.Don’tleaveuntilhe___back.AhavecomeBcomesCwillcome5－Tellhimaboutthenewswhenhe____,

John.－Yes,Iwill.AcomesBwillcomeCiscoming6Pleasedon’tleaveuntilyourteacher___back.AwillcomeBiscomingCcomesBACIf條件狀語從句

是否if是否（賓語從句）1.Iwanttoknowifhe_____(play)sportseveryday.2.Iwanttoknowifhe__________(come)tomorrow.3.Iwanttoknowifhe______(go)

toChangshayesterday.

willcomewentplaysif/whether引導(dǎo)的賓語從句，從句與主句的時態(tài)保持一致；即主句一般現(xiàn)在時，從句用任意時態(tài)；主句過去時，從句用與過去的某一種時態(tài)

我想知道他是否是對的。Iwonderwhetherheisrightornot.=Iwonderifheisright.

if=whether...(ornot)

只能用whether不能用if的情況1.在介詞后面：I’mthinkingofwhetherweshouldgofishing.Wedidn’tthinkaboutwhetheritwouldrainthenextday.2.在動詞不定式前：Theyaskedmewhethertositatthefront.3.當(dāng)與ornot連用，或提出兩種選擇

時:Idon’tknowwhetherhe’sfreeornot.MaryaskedwhetherIwasdoingmyhomeworkornot.Tellmewhetheryou’dliketogoshoppingor

tidytheroom.4.賓語從句提前時：Whetherthisistrueornot,Ican’tsay.5.在動詞discuss后的賓語從句中:Wediscussedwhetherwewouldhaveasportsmeetingnextweek.用if不用whether的情況:1.引導(dǎo)否定概念的賓語從句時：HeaskedmeifIhadn’tfinishedmyhomework.2.引導(dǎo)條件狀語從句，if意為

“如果”時:We’llgohikingifitdoesn’traintomorrow.1.Mymotherwantstoknowifit______sunnytomorrow.A.willbeB.isC.was2.Canyoutellme______helikesitornot?A.ifB.whetherC.weatherAB3.Theoldwomanaskedm