Unit10(Period2)SectionA(GrammarFocus3c)教学课件人教版英语八年级上册

Unit10Ifyougototheparty,you’llhaveagreattime!(Period2)SectionA(GrammarFocus-3c)Lookatthepicturesandmakesentenceswith“if”.IfyougotothepartywithKarenandAnna,you’llhaveagoodtime.Ifyouwearjeanstotheparty,theteacherswon’tletyouin.Lookatthepicturesandmakesentenceswith“if”.Ifyoutakethebustotheparty,you’llbelate.Ifyoustayathome,youwillbesorry.PairworkA:Areyougoingtothepartytomorrownight?B:Yes,Iam.A:Whowillyougowith?B:IthinkI’llgowith...A:Ifyoudo,you’llhaveagreattime.PairworkA:Areyougoingtothepartytomorrownight?B:Yes,Iam.A:Howwillyougototheparty?B:IthinkI’ll...A:Ifyoudo,you’ll…upsetadj.taxi

n.advice

n.难过；失望；沮丧出租汽车；的士劝告；建议FreetalkIfyouhavearobot,whatwillyoudo?‣helpwiththehousework.‣babysitmylittlebrother.‣wakemeupinthemorning.‣teachmeEnglishafterschool.IfIhavearobot,Iwillletit…1．我想我将会乘公共汽车去参加聚会。I______I’lltakethebustothe______.

2．如果你那样做，你将会迟到。Ifyou______,______belate.

3．我想我将待在家里。I____________stayathome.

4．如果你那样做，你将会觉得很遗憾。Ifyou______,____________sorry.

thinkpartydoyou’llthinkI’lldoyou’llbe5．如果他们今天聚会，将会发生什么事？

______

______

______

ifthey______

thepartytoday?What

willhappenhave7．我们应当要求人们带食物来吗？Shouldwe______

peopleto______

food?8．如果我们要求人们带食物来时，他们将会只带薯条和巧克力。

______

we______

peopletobringfood,______

just______

potatochips

andchocolate.

havewon’thalfaskbringIfaskthey’llbring如何使用第一条件句“If…will…”谈论事情的结果？NowreadGrammarFocusloudly.Thenobserveanddiscussthesentences.IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.Whatwillhappeniftheyhavethepartytoday?Iftheyhaveittoday,halftheclasswon’tcome.Shouldweaskpeopletobringfood?Ifweaskpeopletobringfood,they’lljustbringpotatochipsandchocolate.GrammarFocusif引导的条件状语从句1．概念

条件状语从句是表示主句动作发生的前提或条件的从句，即

“在……条件下某事才能发生”。通常由连词if引导。2．位置

if引导的条件状语从句可位于主句之前或之后。位于主句之前

要用逗号与主句隔开；如果放在主句之后，其前不必用逗号。3．时态

若主句为一般将来时、祈使句，或主句含有can、may、must、

haveto等情态动词或短语时，if引导的条件状语从句要用一般现

在时。if引导的条件状语从句e.g.Ifitrainstomorrow,Iwon’tgohiking.

=Iwon’tgohikingifitrainstomorrow.

如果明天下雨，我就不去远足。

Ifhe

watchesTV,IwillwatchTV,too.如果他看电视，我也会看电视。Getupquicklyifyoudon’twanttobelate.

如果你不想迟到，就快点儿起床。Youcanpasstheexamifyoustudyhard.

如果努力学习，你就能通过这次考试。if条件句不一般，几个要点记心间；条件句，放在前，逗号要放句中间；条件句表可能，主将从现是关键。巧学妙记if引导的条件状语从句提醒if引导的条件状语从句典例点拨可用语法判断法解答本题。句意：——我想我会坐公交车去参加会议。——公交车？如果你这样做的话，你就会迟到。if引导的条件状语从句的时态遵循“主将从现”原则，此处空格后的主句用的一般将来时，if从句要用一般现在时。1．—IthinkI’lltakeabustothemeeting.

—Thebus?Ifyou______,youwillbelate.A．doB．havedoneC．willdoD．didAif引导的条件状语从句典例点拨可用词义辨析法解答本题。句意：假如你去参加聚会的话，你就会玩得很开心。so表示因果；if表示条件；although表示让步。因此，正确答案是B。2．You’llhaveagreattime______yougototheparty.A．soB．ifC．althoughD．andBFinishthefollowingsentencesaccordingtotheexample.

notrain

he,havefreetimeI,tellyougohiking,thisafternoongotoShanghaishe,callmeifI,tellheraboutitwillIfshecallsme,Iwilltellheraboutit.Example:Finishthefollowingsentencesaccordingtotheexample.

notrain

he,havefreetimeI,tellyougohiking,thisafternoongotoShanghaiifwillIfitdoesn’train,Iwillgohikingthisafternoon.Ifhehasfreetime,hewillgotoShanghai.Fillintheblankswiththecorrectformsoftheverbsinbrackets.3aDearSuMei,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.Canyougivemesomeadviceplease?TinaknowdothinkgowillbetoldhavewearwilllookgowalkwilltaketakewillbeGroupworkTalkingroupsaboutTina’sworriesusingthesentenceswith“if”.Tina’sworries:togoornottogowhattowearhowtogetthereIfTinagoestotheparty,herparentswill…IfTinawearsjeans,shewill…IfTinatakesataxi,itwill…Let’sgiveTinasomeadvice.If

herparentsdon’tlethergototheparty,shewill…Ifshethinkswearingjeanslooksworst,shewill…Ifshethinks

takingataxiistooexpensive,shewill…Completethesentencesusingyourownideas.3b1．IfIgetuplatetomorrow,_______________________________2．IfIdon’tfinishmyhomework,__________________________3．IfIdon’tgetenoughexercise,___________________________4．Iwillnothaveenoughtimetostudyif____________________5．Iwillnotmakeanyfriendsif___________________________Writeastorywithyourgrouponapieceofpaper.Thefirstpersonbeginsthestorywith“IthinkIwill…”Theothersaddsentenceswith“if”.Passthepaperaroundtwice.Thenreadthestory.3cIthinkIwillgotothemoviestonight.IfIgotothemovies,Iwon’tfinishmyhomework.IfIdon’tfinishmyhomework…1．IfIgototheparty,theywillbeupset.如果我去参加聚会，他们会失望的。upset形容词，意为“难过；失望；沮丧”，在句中作表语。.Thelittleboygotquiteupset.这个小男孩很失望。

—Youlookupset,Mike.What’swrong?迈克，你看起来很沮丧。怎么了？

—Ilostmywatch.我丢了手表。拓展up构成的的常用搭配beupsetaboutsth.对……感到心烦beupsetwithsb.生某人的气e.g.Iwassoupsetaboutwhathappenedyesterday.我对昨天发生的事感到很苦恼。

Don’tbeupsetwithme.不要生我的气。2．IfItakeataxi,itwillbetooexpensive.如果我乘出租车，会很贵。

takeataxi表示“乘出租车”，其中take意为“搭乘”，与交通工具名词搭配时，名词前要用冠词。

.

Ioftentakeataxitoschool.我经常乘出租车上学。拓展①“by+交通工具名词”表示“骑/乘……”，此时表示交通工具的名词只能用单数，且其前不加冠词或形容词性物主代词。e.g.

Mybrothergoestoworkbybike.我哥哥骑自行车去上班。其他表示“乘坐交通工具”的方法2．IfItakeataxi,itwillbetooexpensive.如果我乘出租车，会很贵。拓展②“on/in+限定词+交通工具名词”表示“骑/乘……”，此时表示交通工具的名词只能用单数，且其前要加冠词或形容词性物主代词等限定词。e.g.

Mybrothergoestoworkonhisbike.我哥哥骑自行车去上班。

Timgoestoworkin

acareveryday.蒂姆每天开车去上班。3．Canyougivemesomeadviceplease?你能给我一些建议吗？

（1）advice是不可数名词，意为“劝告；建议”，可用some、apiece