人教版八年级英语上册Unit3完整课件.ppt

教学目标教学目标 l1.学习学习adj.和和adv.比较级的构成比较级的构成l2.掌握下列句型掌握下列句型：lA+谓语谓语+比较级比较级+than+B.lA+系动词系动词+as+形容词原级形容词原级+as+B.重重 难难 点点 l1.复习形容词和副词的用法复习形容词和副词的用法,学习学习adj.和和adv.比较级的构成比较级的构成l2.掌握句型：掌握句型：lA+谓语谓语+比较级比较级+than+B.lA+系动词系动词+as+形容词原级形容词原级+as+B.outgoingbothbetterloudlyquietlyhard-workingadj.外向的、爱交际的外向的、爱交际的adj.两个都两个都adj.较好、更好较好、更好adv.喧闹地、大声地喧闹地、大声地adv.轻声地、安静地轻声地、安静地adj.勤勉的、辛勤的勤勉的、辛勤的New Wpetitionfantasticwhichclearlywinthoughn.比赛、竞争、竞赛比赛、竞争、竞赛adj.极好的、了不起的极好的、了不起的adj.哪一个、哪一些哪一个、哪一些adv.清楚地、明白地清楚地、明白地v.获胜、赢获胜、赢adv./ conj.不过、虽然不过、虽然New Words. HeighttallshortYiJianlianistall.HeJiongisshort. Hairshort hairlong hairFanBingbinghaslonghair.WangFeihasshorthair.Weight体重heavythinHanHongisheavy.ZhaoLiyingisthin.Personality性格like to talk, laugh a lotoutgoing外向的外向的dont like to talk, like to be very quietserioussiris严肃的严肃的XieNaisoutgoing.BaiYansongisserious.两者如何进行比较？两者如何进行比较？l1、表达、表达“A和和B一样一样”，用，用asas的结构。

的结构l公式公式:lA+be动词动词+as+形容词形容词原级原级+as+BlA+实义动词实义动词+as+副词副词原级原级+as+BlIamastallasyou.我和你一样高我和你一样高lHerunsasfastasI.他跑得和我一样快他跑得和我一样快l2表达表达“A不如不如B”用用notas/soas的结构l公式公式:lA+be动词的否定形式动词的否定形式+as/so+形容词原级形容词原级+as+BlA+助词的否定形式助词的否定形式+动词动词+as/so+副词原级副词原级+as+BlIamnotastallasyou.我没有你高我没有你高lHedoesntrunasfastasI.他没有我跑得快他没有我跑得快l3、表达、表达“A大于大于B”用用“比较级比较级+than”的结构l公式公式:lA+be动词动词+形容词比较级形容词比较级+than+BlA+实义动词实义动词+副词比较级副词比较级+than+BlEg.Iamtallerthanyou.我比你高我比你高lHerunsfasterthanI.他跑得比我快他跑得比我快如何将如何将adj.&adv.变成比较级？变成比较级？. talltallerfastfasternicenicerthinthinner(以不发音的字母以不发音的字母e结尾的结尾的+r)(一般在词尾一般在词尾+er)原形原形比较级比较级(重读闭音节词词尾只有一个辅音重读闭音节词词尾只有一个辅音字母时，先双写辅音字母再字母时，先双写辅音字母再+er). earlyearlieroutgoingmoreoutgoing(以辅音字母以辅音字母+y结尾的单结尾的单词，变词，变y为为i+er)(多音节词和部分双音节词多音节词和部分双音节词前加前加more).归纳形容词或副词比较级的构成：归纳形容词或副词比较级的构成： 3.重读闭音节词词尾只有一个辅音重读闭音节词词尾只有一个辅音字母时，先双写辅音字母再字母时，先双写辅音字母再+er4.以辅音字母以辅音字母+y结尾的单词，变结尾的单词，变y为为i+er2.以不发音的字母以不发音的字母e结尾的结尾的+r1.一般在词尾一般在词尾+er5.多音节词和部分双音节词前加多音节词和部分双音节词前加more.将下列形容词变成比较级形式：将下列形容词变成比较级形式：oldfatyounguglyhighlowlightwhitesunnyhotcoololderfatteryoungeruglierhigherlowerlighterwhitersunnierhottercooler.tallshortLiuXiangis_YaoMing.YaoMingis_LiuXiang.shorterthantallerthan.Lilyis_Lucy.Lucy Lily LucyandLilyaretwins(双胞胎双胞胎).funnierthanfunny.2._1._shortfatthintallWrite the Write the opposite wordsopposite words（反义词）（反义词）（反义词）（反义词） according to the pictures.according to the pictures.1a.3._quietlyloudly4._shorthairlonghair.Matchthewordswithitsopposite.把词语和它的反义词匹配起来。

把词语和它的反义词匹配起来tallloudlythinshorthairlonghairheavyquietlyshort.Listenandnumberthepairsoftwinsinthepicture1-3.1231b.TapescriptA:IsthatSamplayingtheguitar?B:No,thatsTom.SamhaslongerhairthanTom.C:BothTomandSamcanplaythedrums,butSamplaysthembetterthanTom.Conversation1.A:ThatsTara,isntit?B:No,itisnt.ItsTina.TinaistallerthanTara.AndshealsosingsmoreloudlythanTara.Conversation2.A:IsthatPaul?B:No,thatsPeter.PetersheavierthanPaul.AndPaulsshorterthanPeter.Conversation3.1cPractice the conversation then make conversations about the other twins.A:ThatsTara,isntit?B:No,itisnt.ItsTina.TinaistallerthanTara.AndshealsosingsmoreloudlythanTara.Letspractice!IsthatTara?No,itisnt.ItsTina.TarasshorterthanTina.TaraTina .No,itisnt.ItsPaul.PaulsthinnerthanPeter.PeterstallerthanPaul.IsthatPeter?.Listen.Arethewordsintheboxusedwith(i)erormore?Completethechart.2afunny(run)fastfriendly(jump)highoutgoing(work)hardhard-working(getup)earlysmartlazy.-er/-iermore friendlyoutgoingfunnyfunniersmartsmarterlazylazierfastfasterhardharderhard-workingmorehard-workinghighhigherearlyearlier.Interviewer:Tina,doyouthinkyouaredifferentfromyoursisterTara?Tina:Oh,sure.Welooksimilarbutwereverydifferent.Interviewer:Really?Inwhatwaysareyoudifferent?Tina:Well,ImmoreoutgoingthanTara.Imfriendlierandfunnier,too.AndIlovesports.Tara:Yes,shecanrunfasterandjumphigherthanme.Interviewer:Whosmorehard-workingatschool?Tara:Tinathinkssheworksharderthanme,butIworkashardasTina.Butshessmarterthanme.Tina:Notreally.IthinkImlazierthanTara.Shealwaysgetsupearlierthanme.talltallerMr.YaoistallerthanMr.Yi.Mr.Yiis_thanMr.Yao.shorter 更高的更高的Mr. Yi is tall.姚比易更高。

易比姚更矮heavyheavierMiss BlackMiss. Black is _.heavier than Miss. HanMiss. Han is heavy.Mrs. Smith80 years oldMr. Smith78 years oldMrs. Smith is _ than Mr. Smith.Mr. Smith is _ than Mrs. Smith .youngerMr. Smith is old.older.funnyfunnierKungfu Panda is _.funnier than Tom and Jerry Tom and Jerry is funny.8:00Bob gets up _.earlier than Julie Julie gets up early.thinthinnerMiss. Brown is thinner than Miss. Liu.Miss BrownMiss Liu is thin.bigThe volleyball is bigger than the tennis.biggerThe tennis is big.yesterday37 today40 Today is hotter than yesterday.Yesterday was hot.outgoingmore outgoingMiss. Xu is _ than Miss. Xie.more outgoing更外向的更外向的.Listenagain.HowareTinaandTaradifferent?2bTina ismoreoutgoingthanTara.isfriendlierandfunnier.runsfasterandjumpshigherthanTara.issmarterthanTara.islazierthanTara. Tara worksashardasTina.getsupearlierthanTina.IsTomfunnierthanSam?No,heisnt.SamisfunnierthanTom.IsSammorehard-workingthanTom?Yes.Hesmorehard-workingthanTom.2dRole-playtheconversation.Julie:Didyoulikethesingingcompetitionyesterda。