Unit3Iammoreoutgoingthanmysister.IsTomsmarterthanSam?No,heisn’t.SamissmarterthanTom.IsTaramoreoutgoingthanTina?No,sheisn’t.TinaismoreoutgoingthanTara.Areyouasfriendlyasyoursister?No,I’mnot.I’mfriendlier.DoesTaraworkashardasTina?Yes,shedoes.Who’smorehard-workingatschool?Tinathinkssheworksharderthanme.GrammarFocusGrammarFocus当两个人或两件事物进行比较时,形容词和副词要用比较级,也就是词尾-er形式,比较级常常用than来连接被比较的两个人或事物。e.g.Iamshorterthanyou.Theredcariscute.Thebluecar______________theredcar.(蓝车比红车更可爱)iscuterthanTheredappleisbig.Thegreenappleis_______theredone.biggerthan56.1kgheavy58kgGarfieldisheavy.Doraemonis____________Garfield.heavierheavierthanGarfieldDoraemonshort-shortersmall-smallernicenicersafesafer------bigthinheavyheavierhappyhappierbigbiggerthinthinner大多数形容词和副词有三个等级:原级、比较级、最高级。一、形容词比较级的构成1.构成的不规则变化:2.构成的规则变化:1.构成的不规则变化:e.g.good/well–betterbad/badly–worsemany/much–more2.构成的规则变化:1)单音节词和少数双音节词一般在词尾后加-er构成比较级如:原级比较级cold–——colderbright———brighteryoung——younger2)以字母e结尾的词只加–r构成比较级。原级比较级最高级nice———nicerfine———finerlarge——larger3)重读闭音节词末尾只有一个辅音字母时,先双写这个辅音字母,再加-er。如:big–biggerthin–thinner4)以“辅音字母+y”结尾的双音节词,先改y为i,再加-er。如:easy–easierhappy–happier5)多音节词和部分双音节词在词前加more。如:delicious–moredeliciousinteresting–moreinterestingimportant—moreimportant原级的用法1.表示两者之间没有差别时,使用句型:A+谓语动词+as+形容词/副词原级+as+B+….如:Heisasexcitedashisyoungersister.他和他妹妹一样兴奋。Lilyrodeherbikeasslowlyasanoldlady.莉莉骑车像老太太一样慢。Thistreeisas____asthattree.Thegreenbagisas____asthered.Thispenisas____asthatpen.HecomesasearlyasLily.tallbiglong2.表示第一个人比不上第二个人时,使用句型:A+谓语动词(否定式)+as/so+形容词/副词原级+as+BHeisnotso/asexcitedashisyoungersister.他没他妹妹那么兴奋。Thispenisnotas/solongasthatpen.1、讲述两者有差异,第一个人物超过第二个人物时用比较级。基本句型:A+be+形容词比较级+than+BA+动词+动词比较级+than+Be.g.Atrainisfasterthanacar.现代的火车比轿车快多了。Sarajumphigherthanherfriend.这本书花费我的钱不比那本多。2、在形容词比较级前还可用much,even,still,alittle来修饰,表示“……的多”,“甚至……”,“更……”,“……一些”。e.g.1)Thiscityismuchmorebeautifulthanbefore.2)She’salittlemoreoutgoingthanme.3)It’salittlecoldertoday.3.“比较级+and+比较级”意为“越来越……”。多音节比较级用“moreandmore+形容词原级”形式。如:Heistallerandtaller.Ourtownismoreandmorebeautiful.the+比较级,the+比较级。意为“越来越......”thethinner,thebetter.themore,thehappier.4.“Which/Whois+比较级…?”比较A、B两事物,问其中哪一个较……时用此句型。如:WhichT-shirtisnicer,thisoneorthatone?Whoiscuter,MaryorKate?Whichoneismorepopularamongstudents,goingtoconcertsorgoingtomovies?5.A+谓语+less+原级+B表示A不如B......(less,adv。不是little的比较级)more:提升,递增。less:减弱Itislesscoldthanitwasyesterday.6.使用形容词比较级时需注意以下2点:1)than后面接代词时,一般要用主格形式,但在口语中也可使用宾格形式。如:MybrotheristallerthanI/me.2)进行比较的人和物必须是同一类。Mybooksaremorethanyours.Ihavemorebooksthanyou.Exercise一将下列形容词变成比较级形式:old→fat→young→ugly→high→low→light→white→sunny→hot→cool→olderfatteryoungeruglierh...