人教版八年级下册Unit5SectionA课件PPT.ppt 68页

'Unit5Ifyougototheparty,you’llhaveagreattime. TeachingaimsTeachingcontent:SectionA:1a,1b,1cAims:Talkaboutconsequences.Introduceconditionalclausewith“if”Structure:IthinkIamgoingtotakethebustotheparty.Ifyoudo,youwillbelate. Ifheishappy,hewill…Let’sguessplaytheguitar Ifsheishappy,shewill......eatsomefood Ifsheishappy,shewill… Iftheyarehappy,theywill…dance PlayaguessinggameWhatwillhappenifItouch(触摸)it?Ifyoutouch(触，碰)it,itwill______getangryWillit…?crybehappybeexcited A:Ifyouarehappy,whatwillyoudo?B:IfI’mhappy,Iwill___WatchTVplaysportsgototravelplaycomputerwatchcartoon Whendoyougetuponweekends? Whatwillhappenifyougetupat9:00thismorning?IfIgetupat9:00,Iwillbelate. Whatwillhappenifyouarelate?IfIamlate,myteacherwillbeangrywithme. Whatwillhappenifyourteacherisangrywithyou?Ifmyteacherisangrywithme,Iwillbesad. Whatwillhappenifyouaresad?IfIamsad,Iwillchatwithmyfriends. Ifitrainsthisweekend,But,ifitrainsthisweekend…Iwillstayathome. Ifitissunnythisweekend…Ifitissunnythisweekend,Iwillgototheparty.party!Ifyougototheparty,you"llhaveagreattime. willhaveagreattime.Ifyougototheparty,you(haveagreattime) 1.IthinkI’mgoingtogotothepartywithKarenandAnn.2.IthinkI’mgoingtowearjeanstotheparty.3.IthinkI’mgoingtotakethebustotheparty.4.IthinkI’mgoingtostayathome.a.Ifyoudo,theteacherswon’tletyouin.b.Ifyoudo,you’llbelate.c.Ifyoudo,you’llbesorry.d.Ifyoudo,you’llhaveagreattime.1bListenWereyouranswerstoactivity1acorrect?备注：do(does/did),是代替上文出现的，是避免重复的出现，例子：Hedoesn’twanttobuyabook.ButIdo.Idon’twanttogoshopping,butshe______(do)Shedidn’tgotoLondon,butLucy_____(do)doesdid 一条牛仔裤apairofjeansletsbin让某人进入（来）是动副结构代词是宾语时必须放在中间。其反义词为letsbout让某人出去别让那个男孩儿进来！Don’tlettheboyin!让他出去！Lethimout.organizethepartygames组织聚会游戏 sorry难过的，不安的，懊悔的；抱歉，对不起e.g.Iamsorrytohearyourbadnews.Youwillbesorryaboutthislater. eattoomuchicecream(fat)If……,……will…… watchtoomuchTV(tired)If……,……will…… notfinishhomework(angry)If……,……will…… 如果明天下雨，我将在家弹钢琴。Ifitisrainytomorrow,IwillplaythepianoAthome.berainyplaythepiano notgetupearly(missthebus)If……,……will…… 从句主句主句从句（一般现在时）（一般将来时）（一般现在时）（一般将来时）主将从现 Whatwillhappentomorrow?Itwillbesunnytomorrow.Wewillhaveatriptomorrow.用if合并成一句Wewillhaveatripifitissunnytomorrow.If在此引导一个条件状语从句。当主句是一般将来时时，if引导的从句必须用现在时来表示将来可能发生的动作或存在的状态。 CompetitiongameVS she,callme,I,tellheraboutitIfshecallsme,Iwilltellheraboutit. he,come,nextweekend,I,tellyouIfhecomesnextweekend,Iwilltellyou. notrain,hiking,thisafternoonIfitdoesn’train,Iwillgohikingthisafternoon. nowar,theworld,morebeautiful,Ifthereisnowar,theworldwillbemorebeautiful. she,notexerciseenough,heavierIfshedoesn’texerciseenough,shewillbeheavier. he,freetime,Shanghai,Ifhehasfreetime,hewillgotoShanghai. she,studyhard,dream,cometrueIfshestudieshard,herdreamwillcometrue. alotofmoney,build,school,poorIfIhavealotofmoney,Iwillbuildaschoolforpoorchildren.go it,sunny,she,flyakiteIfitissunny,shewillflyakite. you,eattoomuch,stomachacheIfyoueattoomuch,youwillhaveastomachache.go Ifyouhavearobot,whatwillyoudo?IfIhavearobot,Iwill… FreeTalkWhatwillyoudowiththemoneyifyouhavehavelotsofmoney?Iwill… MarkAndrea Task2:2aListenandnumberthesephrasesintheorderyouhearthem.a.studyfortheirtestsb.helpmeorganizeitc.tooearlyd.makesomefoode.Saturdayafternoonf.playpartygames组织123456AndreaMark玩舞会游戏 Task3:2b:fillintheblanksWhatwillhappeniftheyhavethepartytoday?Whatwillhappeniftheyhavethepartytomorrow?Whatwillhappeniftheywatchavideoattheparty?WhatisMarkgoingtoorganize?WhatisAndreagoingtodo?Markisgoingtoorganizethepartygames.Somestudentswillbebored.Studentswillleaveearlytostudyfortheirtest.Halftheclasswon’tcome.Andreaisgoingtomakesomefood.MarkAndrea半数的学生 Halftheclasswon’tcome.一半的同学将不会来。half的用法：1halfadj.一半的，一般要放在冠词、物主代词或指示代词之前。半小时_______“half+名词”作主语时，谓语动词的单、复数形式由所接名词的单、复数形式来决定，名词是中心词。Halftheapples_____bad.这些苹果中有一半是坏的。Halftheapple_____bad.这个苹果一半是坏的2Half还可作名词，意为“半，一半”其复数形式为_____.“……个半……”可表达为“数词+名词+andahalf”或“数词+andahalf+名词（复数）”。例如：三个半小时threehoursandahalfthreeandahalfhourshalfanhourareishalves Whenisagoodtimetohavetheparty?举行聚会的最佳时间是在什么时候？tohavetheparty是动词不定式作后置定语，修饰名词time,不定式作定语时，常放在被修饰的词语之后①.Wouldyoulikesomething______?A.drink　　B.drinking　　C.todrinkD.drinks②.Ihavealotofhomework______.A.do　　B.doing　　C.did　　D.todoCD Idon’tknowifmybrother______(come)tomorrow.Ifhe_______(come),I’llbehappy.注意宾语从句中的if与条件状语从句if的区别。宾语从句中的if“是否”相当于whether，宾语从句通常位于主句之后。引导宾语从句，时态需根据语境确定。　　我不知道明天是否会下雨。Idon"tknowifit_______(rain)tomorrow.willcomecomeswillrain if引导的条件状语从句时态－－主将从现主句一般将来时，从句一般现在时e.g1.如果你努力工作，你的梦想将会实现．Ifyouworkhard,yourdreamwillcometrue.2.　如果明天下雨，我将不出去散步．Ifitrainstomorrow,Iwon’tgooutforawalk. 条件状语从句通常由连词if引导，意为“如果、假如”，主句不能用begoingto表示将来，而应该用will,shall(主语为第一人称） if条件状语从句中，主句用一般将来时，从句用一般现在时表示将来。Ifyouwon’thurryup,youwillmisstheearlybus.Ifyoudon’thurryup,youwillmisstheearlybus.What’stherule?（1）Ifyou...,youwill...条件状语从句 if条件状语从句中，如果主句有must，can，may等情态动词，从句用一般现在时。Youmuststopifthetrafficlightisred.Youmaygofishingifyouarefree.Hecangohomeifhefinisheshishomework.What’stherule?（2） if条件状语从句中，如果主句是祈使句，从句用一般现在时。Letmeknowifhecomes.Don’twaitformeifIamlate.Putupyourhandsifyouhaveanyquestions.What’stherule?（3） 2.If条件状语从句中，如果主句有must，can，may等情态动词，从句用一般现在时。（主情从现）3.If条件状语从句中，如果主句是祈使句，从句用一般现在时。（主祈从现）1.If条件状语从句中，主句用一般将来时，从句用一般现在时表示将来。（主将从现）Rules If条件句歌诀:条件句，放在前，逗号要放句中间;①条件句表可能，从句多用现在时,主句多用将来时.② 3.IfMary(buy)thebook,shewilluseupallhermoney.1.IfI(be)free,I’llvisitmyauntnextSunday.4.Ifshe(study)hard,she’llwintheEnglishcompetition.2.Ifit(be)coldtomorrow,Iwillwearmysweater.amisbuysstudiesExercise(1):5.IfaUFO(land)infrontofme,I(go)intolookforthealien.landswillgo Exercise(2):1.Callmeiftheboss(willcome/comes).comes2.Shemustseeadentistifshe(has/willhave)atoothache.has3.Haveagoodrestifyou(willbe/are)tired.are4.Youcangoshoppingwithyoursisterifyou(have/willhave)timethisafternoon.have5.Ifthere(willbe/is)acaraccident,they(willcall/call)110atonce.iswillcall DearJenny,Thanksforinviting（邀请）metotheparty.Ofcoursepresent,youarehappy.Ihopeitwon’trainthatday.②Becauseifitwon’train,mylittlesonwillcome,too.③Ifhecomes,youaren’tdisappointed,heisreallyfunny.④OK,seeyouontheparty.Yours,willbedoesn’tgivewon’tbeI’llgototheparty.AndIthinkifIwillgiveyoua①Pleasehelpmecorrectthesentences.RoseCorrectandWrite（礼物） Homework练习册sectionA每人写8个if引导的条件状语从句 1.Ifit______,theywillnotgobikeriding.A.rainsB.won’trainC.wasrainingD.doesn’train2.—IthinkGinaisgoingtowearjeanstotheparty.—Ifshe______,theteacherswillnotletherin.AisB.doC.hasD.doesMultiplechoice 3.—IthinkI’mgoingtowalkthere.—______A.Ifyoudo,you’llbelate.B.Notreally.C.Whyso?D.Thankyou.4.Willyougototheparkifit____fine?A.willbeB.wasC.isD./ 1.Ifhe______(go)tothemovies,hewon’tfinishhiswork.2.Ifhe________(become)adoctor,hecanhelpothers.3.Ifyou_______(have)time,wewillgototheparktomorrow.4.I’msureifhe_____(go)totheparty,he________(have)agreattime.5.I’llbuyacomputerifI______(have)enoughmoney.用括号内所给动词的适当形式填空goesbecomeshavegoeswillhavehave ExercisesFillintheblankswiththewordsgiven.ThestudentswillgototheGreatWallifit___________(notrain)tomorrow.Ifhe___________(notdo)hishomework,he’llbelate.Ifshelikesit,she_____________(read)itsoon.Ifyouplaycomputergamesonweekdays,you_________(be)tired.IfyouwatchTVtonight,you__________(notstudy)forthetest.doesn’traindoesn’tdowillreadwillbewon’tstudy 用所给词的正确形式填空。1.Ifyou______(be)late,theteacherwillbeangry.2.Wedon’tknowifit__________tomorrow(snow).3.He______________(become)asoccerplayerifheworkshard.4.You_________(be)famousifyousingwell.arewillsnowwillbecomewillbe5Halfofthesebananas_____________(be)bad.6Halfoftheboys__________(like)basketball.arelike Ifyouarehappy…Thankyou! Unit5Ifyougototheparty,youwillhaveagreattime!(sectionB) Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye!Goodbye! Thankyou! Summary条件状语从句1.常用关联词if（如果）引导。2.if引导的状语从句可放在主句前，也可在主句后3.主句谓语动词是一般将来时，从句时态通常用一般现在时。 找一找规律，你能发现什么？Ifyougototheparty,you’llhaveagreattime.Ifshedoesexercise,shewillbehealthy.Ifheworkshard,hewillbesuccessful.Ifyouarelateforschool,theteacherswon’tletyouin..'