Unit10SectionA(GrammarFocus-3c)課件人教版八年級(jí)英語(yǔ)上冊(cè)

Unit10Ifyougototheparty,you’llhaveagreattime.初中英語(yǔ)人教版八上SectionA(GrammarFocus-3c)IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.WhatwillhappeniftheyhavethepartytodayIftheyhaveittoday,halftheclasswon’tcome.ShouldweaskpeopletobringfoodIfweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.ReviewReadthesentences.Let’splayagameIfyou'rehappyandyouknowit_______________.clapyourhandssqueezetheeyesstretchyourbodystampyourfeetMakesentencesbyusingthestructure“if”conditionalsentences.doesn'traintomorrow,playfootballIfitdoesn'traintomorrow,I'llplayfootball.I'llplayfootballifitdoesn'traintomorrow.befreetomorrow,playbasketballIfIamfreetomorrow,I'llplaybasketball.I'llplaybasketballifIamfreetomorrow.finishone'shomework,goswimming

IfIfinishmyhomework,I'llgoswimming.I'llgoswimmingifIfinishmyhomework.Ifitissunnythisweekend…Ifitissunnythisweekend,Iwillgocamping.Iwillgotothepark.Iwillplayfootball.Ifitrainsthisweekend…Ifitrainsthisweekend,Iwillstayathome.Iwilldomyhomework.Iwilllistentosomemusic.she,callme,I,tellheraboutitIfshecallsme,Iwilltellheraboutit.

he,come,nextweekend,I,tellyouIfhecomesnextweekend,Iwilltellyou.if

will

notrain,

gohiking,thisafternoonIfitdoesn’train,Iwillgohikingthisafternoon.

nowar,

theworld,morebeautifulIfthereisnowar,theworldwillbemorebeautiful.

he,havefreetime,

gotoShanghaiIfhehasfreetime,hewillgotoShanghai.SentencesReviewMakesentenceswiththewordsinthebox.Grammarfocus

IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.Whatwillhappeniftheyhavethepartytoday?Iftheyhaveittoday,halftheclasswon’tcome.Shouldweaskpeopletobringfood?Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.句子類型簡(jiǎn)單句復(fù)合句一個(gè)主語(yǔ)（或者并列主語(yǔ)）+一個(gè)謂語(yǔ)（或者并列謂語(yǔ)）構(gòu)成的句子一個(gè)主句+一個(gè)從句（或者多個(gè)從句語(yǔ)）構(gòu)成的句子I‘mhappy.Ithinkthatyoucanpasstheexam.Iwillhaveagoodtimetomorrow.Iwillgotothepartytomorrow.（將以上兩個(gè)句子合并為一個(gè)句子）IfIgotothepartytomorrow,I’llhaveagoodtime.注意:if引導(dǎo)一個(gè)條件狀語(yǔ)從句，當(dāng)主句是一般將來時(shí)時(shí),if引導(dǎo)的從句必須用現(xiàn)在時(shí)來表示將來可能發(fā)生的動(dòng)作或存在的狀態(tài)。語(yǔ)法聚焦If條件句Whatdoyoufindinthesesentence?A:Ifyoulose,youwillbeintrouble.B:WhatwillIhavetodoifIwanttowinyou.A:Ifyoucanjumpoffmyhand,youwillwin.B:IfIdoit,Iwillbetheruleroftheheaven.句子的時(shí)態(tài)是什么？將來時(shí)一般現(xiàn)在時(shí)YouwilltakeYudiawayifIgobacknow.Youwillshowmeifyowantmetobelieveyou.Iwillwritemynameonthiswallifyoudon’tbelieveme.Youwon’twinifyoudon’tletmyhand.Youwon’tbeangryifIdon’tyougo.IwillbeangryifIstayhere.Haveadiscussion句子的從句部分是什么？IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.Whatwillhappeniftheyhavethepartytoday?Iftheyhaveittoday,halftheclasswon’tcome.Shouldweaskpeopletobringfood?Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.GrammarFocusIf

是連詞，意思是如果；假若；倘若它所引導(dǎo)的句子稱之為從句，用一般現(xiàn)在時(shí)表示將來可能發(fā)生的動(dòng)作或存在的狀態(tài)。另一個(gè)句子則為主句，用一般將來時(shí)時(shí)態(tài)。這里if所引導(dǎo)的是真實(shí)條件句,

即所假設(shè)的條件有可能成為現(xiàn)實(shí),表達(dá)假定所假設(shè)的條件實(shí)現(xiàn)時(shí)會(huì)出現(xiàn)的情況或會(huì)采取的行為。if引導(dǎo)的條件狀語(yǔ)從句提醒

（1）if引導(dǎo)的條件狀語(yǔ)從句，通常可與以下句型相互轉(zhuǎn)換：

①祈使句+and/or+一般將來時(shí)的句子

e.g.Ifyouarequick,youwon’tbelateforclass.

=Bequick,andyouwon’tbelateforclass.

②含有介詞with或without的句子

e.g.Ifthereisnowater,wecan’tlive.=Wecan’tlivewithoutwater.（2）if除可引導(dǎo)條件狀語(yǔ)從句外，還可引導(dǎo)賓語(yǔ)從句，意為“是否”。

e.g.Idon’tknowifhewillcometoJim’sbirthdaypartytomorrow.if引導(dǎo)的條件狀語(yǔ)從句典例點(diǎn)撥可用語(yǔ)法判斷法解答本題。句意：——我想我會(huì)坐公交車去參加會(huì)議?！卉?？如果你這樣做的話，你就會(huì)遲到。if引導(dǎo)的條件狀語(yǔ)從句的時(shí)態(tài)遵循“主將從現(xiàn)”原則，此處空格后的主句用的一般將來時(shí)，if從句要用一般現(xiàn)在時(shí)。1．—IthinkI’lltakeabustothemeeting.—ThebusIfyou______,youwillbelate.A．doB．havedoneC．willdoD．didAIfIdon’tfinishmyhomeworkontime,myteacherwillbemadatme.Ifmyteacheraremadatme,hewillcallmyparents.Ifhecallsmyparents,myparentswillbemadatme.Ifmyparentsaremadatme,Iwon’tgetanypocketmoney.IfIcan’tgetanypocketmoney,Iwillbeverypoor.IfIamverypoor,Iwon’tbuythethingsIlike.Ifhedoesn’tworkhard,hewillgetabadgrade.Ifhegetsabadgrade,hisparentswillbemadathim.Ifhisparentsaremadathim,hewon’tgetanypocketmoney.Ifhecan’tgethispocketmoney,lifewillbedifficultandhecan’tbuythethingshelikes.PracticeWorkingroupsandmakesentenceswithif

onebyone.YouwilltakeYudiawayifIgobacknow.Youwillshowmeifyowantmetobelieveyou.Iwillwritemynameonthiswallifyoudon’tbelieveme.Youwon’twinifyoudon’tletmyhand.Youwon’tbeangryifIdon’tyougo.IwillbeangryifIstayhere.條件狀語(yǔ)從句的時(shí)態(tài)主句將來時(shí)從句一般現(xiàn)在時(shí)主句為以下三種情況.if從句要用一般現(xiàn)在時(shí)主句是一般將來時(shí).主將從現(xiàn)Ifhecomes,hewilltellme.一般現(xiàn)在時(shí)一般將來時(shí)從句主句他如果要來,他會(huì)告訴我的。Ifyoustudyhard,youcangetgoodgrades.主句謂語(yǔ)含有情態(tài)動(dòng)詞may/might/can等主情從現(xiàn)從句一般現(xiàn)在時(shí)情態(tài)動(dòng)詞如果你努力學(xué)習(xí),你就能夠取得好成績(jī).主句if引導(dǎo)的條件狀語(yǔ)從句時(shí)態(tài)運(yùn)用主句是祈使句.主祈從現(xiàn)Ifyouwanttopasstheexam,pleaseworkhard.一般現(xiàn)在時(shí)祈使句從句主句如果你想要通過考試，請(qǐng)你努力學(xué)習(xí).助記：

if引導(dǎo)條件狀語(yǔ)從句if條件句,放句前，逗號(hào)要放主句前；if條件句,表可能.主講從現(xiàn)是關(guān)鍵.在英語(yǔ)里,當(dāng)句子的主句為將來時(shí)態(tài)時(shí),它所引導(dǎo)的時(shí)間狀語(yǔ)從句和條件狀語(yǔ)從句都使用一般現(xiàn)在時(shí)來表示將來時(shí)間,這在英語(yǔ)里被稱為“主將從現(xiàn)”。主句的將來時(shí)態(tài)并不僅限于我們這一課里所學(xué)習(xí)到的“will＋動(dòng)詞原形”構(gòu)成的一般將來時(shí),還包括begoingto＋動(dòng)詞原形、bedoing所表示的一般將來時(shí)以及我們以后會(huì)學(xué)到的其他的將來時(shí)態(tài)。例如:Whatishegoingtodowhenhegrowsup他長(zhǎng)大了想干什么？WeareleavingforAmoytomorrowifitdoesn’train.如果明天不下雨,我們就去廈門。Wewillbuythatmicrowavenextweekifitspricekeepsgoingdown.如果價(jià)格持續(xù)下降,下個(gè)禮拜我們就買那臺(tái)微波爐。語(yǔ)法拓展DearSuMei,Idon’t______(know)whatto______(do)aboutgoingtoMike’sbirthdaypartytomorrownight.Myparents______(think)IshouldstudyformyEnglishexamnextweek.IfI______(go)totheparty,they________(be)upset.Mike______(tell)ustowearniceclothes,butIdon’t______(have)any.IfI_____(wear)jeans,I________(look)theworst.Also,I’mnotsurehowto____(go)totheparty.IfI______(walk),it_________(take)metoolong.IfI_____(take)ataxi,it_________(be)tooexpensive.CanyougivemesomeadvicepleaseTinaknowdothinkgowillbetellshavewearwilllookgowalkwilltaketakewillbe3aFillintheblankswiththecorrectformsoftheverbsinbrackets.Languagepoints

Idon’tknowwhattodo...結(jié)構(gòu)：_____________________________Exercises:1)Iwanttoknow_______________(何時(shí)離開).2)Canyoutellme_________________next(如何做)特殊疑問詞+動(dòng)詞不定式（todo）whentoleavehowtodoLanguagepoints

beupset_________sth.(對(duì)某事失望)_________sb.(對(duì)某人失望)at/aboutwithExercises:1)Myparentswillbeupset______meifIdon’tgetgoodgrades.2.Marywasnotupset______thegiftyousent,butshewasupset_______you.withaboutwith1.IfIgetuplatetomorrow,________________________________

2.IfIdon’tfinishmyhomework,

________________________________

3.IfIdon’tgetenoughexercise,

________________________________4.Iwillnothaveenoughtimetostudyif________________________________

5.Iwillnotmakeanyfriendsif

________________________________

Iwillmisstheschoolbus.my

teacherwillbeangry.Iwon’tbestrong.Iplaycomputergamesalltheday.Ialwaysmakethemupset.3bCompletethesentencesusingyourownideas.3bCompletethesentencesusingyourownideas.1.IfIgetuplatetomorrow,________________________________

2.IfIdon’tfinishmyhomework,

________________________________

3.IfIdon’tgetenoughexercise,

________________________________

4.Iwillnothaveenoughtimetostudyif________________________________

5.Iwillnotmakeanyfriendsif

________________________________

IwillmisstheschoolbusmyteacherwillbeangryIwon’tbestrongIplaycomputergamesalltheday.Ialwaysmakethemupset.giveconsequences

giveconditions

3b1.WhenisMike’sbirthdayparty2.WhatdoesTina’sparentsthink3.CanTinagotothepartyTomorrownight.

TheythinkTinashouldstudyforherEnglishexam.Sorry,wedon’tknow.PracticeReadthepassagein3aandanswersomequestions.Let’sgiveTinasomeadvice.If

herparentsdon’tlethergototheparty,shewill…Ifshethinkswearingjeanslooksworst,shewill…Ifshethinks

takingataxiistooexpensive,shewill…Completethesentencesusingyourownideas.3b1．IfIgetuplatetomorrow,_______________________________2．IfIdon’tfinishmyhomework,__________________________3．IfIdon’tgetenoughexercise,___________________________4．Iwillnothaveenoughtimetostudyif____________________5．Iwillnotmakeanyfriendsif___________________________IthinkIwillgotothemoviestonight.IfIgotothemovies,Iwon’tfinishmyhomework.IfIdon’tfinishmyhomework…IfIdon’tfinishmyhomework,Iwon’tdowellinmytest.IfIdon’tdowellinmytest,myparentswillbeupset.…3cWriteastorywithyourgrouponapieceofpaper.Thefirstpersonbeginsthestorywith“IthinkIwill…”Theothersaddsentenceswith“if”.Passthepaperaroundtwice.Thenreadthestory.Ifherparentsdon’tlethergototheparty,shewill…Ifshethinkswearingjeanslooksworst,shewill…Ifshethinks

takingataxiistooexpensive,shewill

…PracticeLet’sgiveTinasomeadvice.Summary1.if條件狀語(yǔ)從句的含義：if意為“如果”，如果從句動(dòng)作（不）發(fā)生，主句動(dòng)作就（不）會(huì)發(fā)生。主將從現(xiàn)主情從現(xiàn)主祈從現(xiàn)2.if條件狀語(yǔ)從句的位置：主現(xiàn)從現(xiàn)3.if條件狀語(yǔ)從句的時(shí)態(tài)：在主句前或者主句后，在主句前時(shí)要用逗號(hào)隔開structureIf+……,I'll/you'll+……↘↙↘↙條件結(jié)果條件狀語(yǔ)從句的“主將從現(xiàn)”結(jié)構(gòu)

2.Ifyouworkhard,youwillbesuccessful.3.Ifitdoesn’train,Iwillgoshoppingthisafternoon.1.

IfIgetuplate,

Iwillbelateforschool.1.IfIgototheparty,myparents__________________.2.IfI_____________________,I___________________.3.IfI_____________________,it___________________.4.IfI_____________________,it___________________.willbeupsetwearjeanswilllooktheworstwalkwilltakemetoolongtakeataxiwillbetooexpensive

PracticeReadthepassagein3aandfillintheblankswith“If…,…will…“.3cWriteastorywithyourgrouponapieceofpaper.Thefirstpersonbeginsthestorywith“IthinkIwill…”Theothersaddsentenceswith“if”Passthepaperaroundtwice.Thenreadthestory.IthinkIwillgotothemoviestonight.IfIgotothemovies,Iwon’tfinishmyhomework.IfIdon’tfinishmyhomework,...will/won’t...interestingimaginativecreativelogical3cpresent,youarehappy.Ihopeitwon’trainthatday.

③Becauseifitwon’train,mylittlesonwillcome,too.④I’ll

gototheparty.AndIthinkifIwillgiveyoua

②

DearJenny,

Thanksforinvitingmetotheparty.Ofcourse①Ifhecomes,youaren’tdisappointed.Heisreallyfunny.⑤OK,seeyouontheparty.Yours,

RoseExercise閱讀下面短文，把文中出現(xiàn)的語(yǔ)法錯(cuò)誤改正過來willbedoesn’tgivewon’tbe一、用括號(hào)內(nèi)所給單詞的正確形式填空。1.I’llbuyacomputerifI_______(have)enoughmoney.2.I’msureifhe____(go)totheparty,he________(have)agreattime.3.You_________(notget)nervousifyou____(do)enoughexercise.4.Ifshe_______(finish)workearly,she______(go)home.5.Ifit_____(rain),we________(stay)athome.6.IfI______(watch)TVthisweekend,mymother_______(be)angry.7.Ifhe_____(have)astrangehaircut,theteachers___________(notagree).havegoeswillhavedofinisheswillgorains