if條件狀語(yǔ)從句-語(yǔ)法課件

If從句（條件狀語(yǔ)從句）if條件狀語(yǔ)從句-語(yǔ)法Completethesentenceswiththecorrectformofthewords.1.Ifyou_______(listen)tothemusic,_____(buy)aCD.2.Ifhe______(be)lateforschool,______(notwait)forhim.3.Ifyou____(buy)anewcamera,____(get)agoodone.4.Ifthelight____________(notcome)on,____(wait)foroneminute.isbuygetdoesn’tcomewaitdon’twaitlistenbuyRevisionif條件狀語(yǔ)從句-語(yǔ)法Revision祈使句+if條件狀語(yǔ)從句

if條件狀語(yǔ)從句，+祈使句（從句后加逗號(hào)）if條件狀語(yǔ)從句要用一般現(xiàn)在時(shí)。句型結(jié)構(gòu)時(shí)態(tài)If條件狀語(yǔ)從句（1）if條件狀語(yǔ)從句-語(yǔ)法Let’ssingthesonginChinese:Ifyouarehappyif條件狀語(yǔ)從句-語(yǔ)法Whatwillyoudoifyou’rehappy?IfI’mhappy,Iwill____________.IfI’mhappy,Iwill____________.IfI’mhappy,Iwill____________.IfI’mhappy,Iwill______________.clapmyhandsstampmyfeetwinkmyeyesnodmyheadif條件狀語(yǔ)從句-語(yǔ)法IfI’mhungry,Iwill______________.IfI’m

tired,Iwill_____________.Lookandsayeatsomefoodhavearestif條件狀語(yǔ)從句-語(yǔ)法IfI’mill,__________________.

IwillseeadoctorLookandsayIfI’mlate,_________________.Iwillsaysorryif條件狀語(yǔ)從句-語(yǔ)法

Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketballif條件狀語(yǔ)從句-語(yǔ)法Ifyouarefreethisweekend,whatwillyoudo?IfIamfree,…sleepwatchTVplaycomputergamespracticeif條件狀語(yǔ)從句-語(yǔ)法grammarif條件狀語(yǔ)從句(2)句子特點(diǎn)：1.if從句中用一般現(xiàn)在時(shí)，表示未來(lái)的一種條件，從句中可以加時(shí)間狀語(yǔ)。2.當(dāng)if表示未來(lái)的條件時(shí)，主句中用一般將來(lái)時(shí)。句型結(jié)構(gòu)：主句+if條件狀語(yǔ)從句

if條件狀語(yǔ)從句，+主句（從句后加逗號(hào)）3.時(shí)態(tài)：if一般現(xiàn)在時(shí)，+主句一般將來(lái)時(shí)或（can/may/must+v.)if條件狀語(yǔ)從句-語(yǔ)法e.g.1.Ifyoudon’tgetupearly,youwillbelateforschool.你如果不早點(diǎn)起床，上學(xué)就會(huì)遲到。2.IfIplaygamesonit,itwillgowrong.如果我用它玩游戲，它就會(huì)壞掉。3.Ifyoufinishthehomework，youcangohome．如果你作業(yè)做完了就可以回家了。4.Ifyouwanttoloseweightyoumust/shouldeatlessbread.如果你想減肥，你必須少吃面包。5.Ifyouheaticeitturnstowater.(也可用willturn)如果把冰加熱，它就會(huì)化成水。if條件狀語(yǔ)從句-語(yǔ)法if條件句不一般,幾個(gè)要點(diǎn)記心間。條件句放在前,逗號(hào)要放句中間。條件句表可能,主句多用將來(lái)時(shí)；條件句表事實(shí),主句常用現(xiàn)在時(shí)。if條件句有特點(diǎn),現(xiàn)在時(shí)把將來(lái)替；這個(gè)規(guī)則要牢記!if條件句歌訣if條件狀語(yǔ)從句-語(yǔ)法1.Ifhe____________(not,do)it,I___________(do)it.2.Ifyou____(be)lateforschool,myteacher________(be)angry.arewillbe3Ifshe________(win)theprize,we_______(be)happy.winswillbe4.IfI_________(not,eat)somuch,I_________(get)thinner.5.Ifyou______(tell)them,they_____________(not,believe)you.don’teatwillgettellwon’tbelieve6I_________(stay)athome,Ifit__________(rain).7.Ifit____________(not,rain),I_________(go)out.8.we__________(play)football,Ifitis_________(sun).9.Ifshe__________(become)astar,herparents____________(not,send)heraway

10.He_________(watch)TV,ifhe______(be)free.willstayrainsdoesn’trainwillgowillplaysunnybecomeswon’tsendwillwatchisdoesn’tdowilldoExerciseTimeif條件狀語(yǔ)從句-語(yǔ)法---I’malwaystiredinthemorning.---Ifyougotobedearly,youwon’tbetiredinthemorning.Givingsuggestions:if條件狀語(yǔ)從句-語(yǔ)法---IgetthirstywhenIrun.---Ifyoutakesomewaterwithyou,youwon’tgetthirstywhenyourun.if條件狀語(yǔ)從句-語(yǔ)法Iworrysomuchaboutmyschoolwork.---Ifyoualways

workhard,youwon’tworryaboutyourschoolwork.Youshould

workhard!if條件狀語(yǔ)從句-語(yǔ)法activity1Rewritethesentenceswithif:Listeninclass,oryouwon’tunderstandwhattodo.Ifyoudon’t

listeninclass,youwon’tunderstandwhattodo.1)Eatsomebreakfast,oryou’llgethungryatschool.2)Hurryup!We’llbelate!3)Readtheinstructionscarefully.Thenyou’llknowwhattodo.Ifyoudon’teatsomebreakfast,you’llgethungryatschool.Ifyoudon’thurryup,we’llbelate.Ifyoureadtheinstructionscarefully,you’llknowwhattodo.if條件狀語(yǔ)從句-語(yǔ)法pletethesentences—Iwanttogethighscores.—If__________________________(workhard/dowell)youworkhard,youwilldowell.1.-howcanIremembermyfriends’birthdays?-If_______________________________________(keepanoteinyourdiary/notforget).2.-It’slate,butIdon’twanttogotosleep.-If_______________________________________(notgetenoughsleep/feeltiredatschool).youkeepanoteinyourdiary,youwon’tforget.youdon’tgetenoughsleep,you’llfeeltiredatschool.if條件狀語(yǔ)從句-語(yǔ)法3.-Idon’tlikespeakingEnglishoutsidetheclassroom.-If_______________________________________(notpractice/notimprove).4.-ShouldItellmyteacherIdon’tunderstandthehomework?-If_______________________________________(nottellher/shenotabletohelpyou).5.-IsitOKifIwatchTVforsixhours?-If_______________________________________(youwatchtoomuch/eyeshurt).youdon’tpractice,youwon’timprove.youdon’ttellher,shewon’tbeabletohelpyou.youwatchtoomuchTV,youreyeswillhurt.if條件狀語(yǔ)從句-語(yǔ)法summaryif的用法2.引導(dǎo)條件狀語(yǔ)從句：譯為“如果，假如”(1)if從句+祈使句(2)if從句+主句（一般將來(lái)時(shí)）1.引導(dǎo)賓語(yǔ)從句：譯為“是否”，表示不確定的概念。Idon’tknowifyourfathercancometogether.Canyoutellmeifmissyourparents?if條件狀語(yǔ)從句-語(yǔ)法e.g.IfIwereyou,Iwouldinvitehimtotheparty.如果我是你，我會(huì)邀請(qǐng)他參加聚會(huì)。Ifhehadhurried,hecouldhavecaughtthetrain.如果他抓緊點(diǎn)，他會(huì)趕上火車的。IfIweretogoabroad,IwouldgotoAmerica.如果我出國(guó)了，我會(huì)去美國(guó)。3.非真實(shí)條件句（虛擬語(yǔ)氣）：表示不可實(shí)現(xiàn)的條件或根本不存在的條件。從句多用一般過(guò)去時(shí)或過(guò)去完成時(shí)，表示對(duì)現(xiàn)在或過(guò)去的一種假設(shè)。if條件狀語(yǔ)從句-語(yǔ)法()6.─Mikewantstoknowif____apicnictomorrow.

─Yes.Butifit_______,we'llvisitthemuseuminstead.A.youhave/willrain

B.youwillhave/willrain

C.youwillhave/rains

D.willyouhave/rains()7.Ireallydon'tknowifshe_______itwhenshe________.

A.finds/arrives

B.finds/willarrive

C.willfind/willarrive

D.willfind/arrives（）4.Idon’tknowif______tomorrow.A.itdoesn’trainB.therainwillstopsC.therainswon’tstopD.itwon’train（）5.Thevolleyballmatchwillbeputoff(推遲）ifit______.A.willrainB.rainsC.rainedD.israining（