初中英语人教版八年级上册Unit3 课件.ppt

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1、Unit3I’mmoreoutgoingthanmysister.I’mtall.I’mtaller.I’mthin.I’mthinner.JimJohnJimistallerthanJohn.JimisthinnerthanJohn.Sentenceintroduction:I’mheavy.I’mheavier.I’mhappy.I’mhappier.PaulPeterPaulisheavierthanPeter.PaulishappierthanPeter.Sentenceintroduction:I’myoung.I’myounger.I’mfunn

2、y.I’mfunnier.LilyLucyLilyisyoungerthanLucy.LilyisfunnierthanLucy.Sentenceintroduction:I’mquiet.I’moutgoing.TinaTaraTaraisquieterthanTina.TinaismoreoutgoingthanTara.Sentenceintroduction:short-shortersmall-smallernicenicersafesafer------heavyheavierhappyhappier找规律：bigbiggerthinthinner

3、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.构成的规则变化:2.构成的不规则变化:形容词和副词的比较级1.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或-est.如：cold–colder–coldestnice—nicer–nicest2)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或-est。如:big–bigger–biggestthin–thinner–thinnest3)以“辅音字母+y”结尾的双音节词，先改y为i,再加-er或-est。如：easy–easier–easies

4、thappy–happier–happiest4)多音节词和部分双音节词在词前加more或most。如：delicious–moredelicious–mostdeliciousinteresting–moreinteresting–mostinteresting2.构成的不规则变化:eg.good/well–better–bestbad/badly–worse–worstmany/much–more–mostlittle–less–leastfar–farther/further–farthest/furthest知道这些词的比较级吗tallshortthi

5、nheavysmartfunnyquietlateoutgoingtallershorterthinnerheaviersmarterfunnierquieterlatermoreoutgoing原级比较级XiaoMingisthanXiaoHong.XiaoHongislate.XiaoMinglaterXiaoMingislaterThewomenarefat.Themanandthewomanarethin.Thewomenarefatterthanthemanandthewoman.IsLiuXiangisshorterthanPanChangjian

6、g?No,heisn't.PanChangjiangisshorterthanLiuXiang.LiuXiangistall.PanChangjiangisshort.Theredboxissmall.Theyellowboxisbig.Istheredboxbiggerthantheyellowbox?No,itisn't.Theredboxsmallerthantheyellowbox.￥20￥30Thereddressis_______________theblackone.Theblackdressis___________theredone.chea

7、perthanmoreexpensivethan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：主语(‘A’)+谓语动词+形容词/副词比较级+than+主语(‘B’)+….e.g.A modern train isfaster thana car.现代的火车比轿车快多了。This book didn’t cost memore thanthat one.这本书花费我的钱不比那本多。比较级的用法Thistreeisas____asthattree.Thegreenbagisas____asthered.Thispencilisas____astha

8、tpencil.tallbiglong