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就是将二者进行比较产生的词形，是由形容词原级转化而来的Itisshorter.它更矮Itisshorterthanhim.Sheisolder.她更老。Sheisolderthanhim.她比他老。Sheisyounger.她更年轻。Sheisyoungerthanhim.她比他年轻。nererterer(1)一般在形容词词尾+er：young-youngershort-shorter(2)以不发音的e结尾的单词+r，如late-later(3)以重读闭音节结尾的词，词尾只有一个辅音字母时，双写辅音字母再+er，如thin-thinner，big-bigger(4)以辅音字母加y结尾的单词，变y为i，再+er，如heavy-heavier(5)多音节词，在词前加more，如quickly-morequickly(6)不规则变化。如good-better，many-moreoldyoungheavystrongthinshortlongtallbigsmallererierernerererergererangryhappysadworriedafraidfreshhotcoldwarmbeautifulangrierhappiersaddermoreworriedmoreafraidfresherhottercolderwarmermorebeautiful1.他更瘦。2.我的书更旧3.你爸爸更强壮。4.我们更开心。5.他们更重。6.它更小。7.他的脚更大。8.她的头发更长。9.大象更强壮。Heisthinner.Mybookisolder.YourfatherisstrongerWearehappier.Theyareheavier.Itissmaller.Hisfeetisbigger.Herhairislonger.Theelephantisstronger.1.他比你瘦。2.我的书比你的旧。3.你爸爸比我爸爸强壮。。4.我们比他开心。5.他们比我们重。6.它比蚂蚁小。7.他的脚比你的脚大。8.她的头发比你的长。9.大象比猴子强壮。Heisthinnerthanyou.Mybookisolderthanyours.Yourfatherisstrongerthanmine.Wearehappierthanhim.Theyareheavierthanus.Itissmallerthanants.Hisfeetisbiggerthanyours.Herhairislongerthanyours.Theelephantsarestrongerthanthemonkeys.1.越来越年轻2.越来越老3.越来越开心4.越来越大5.越来越重6.越来越瘦7.越来越强壮8.越来越聪明9.越来越高youngerandyoungerolderandolderhappierandhappierbiggerandbiggerheavierandheavier.thinnerandthinnerstrongerandstrongersmarterandamartertallerandtaller1.How____areyou?你多高？Iam1.61meterstall.tall2.Howtall____he?他多高？Heis1.63meterstall.is3.______tallisshe?她多高？Sheis1.60meterstall.How1.How_______areyou?你多重？Iam52kilograms.2.Howheavy____he?他多重？Heis53kilograms.3.______heavyisshe?她多重？Sheis56kilograms.heavyisHow1.Theblackdogis_______(thin)thanthewhitedog.2.Thisballoonis________(big)thanyours.3.Mybagis_________(heavy)thanyours.4.Johnis__________(strong)thanMike.5.Iam_________(short)thanLucy.thinnerbiggerheavierstrongershorter用所给词的正确形式填空，每词用一次。（10分）younglongtallheavyoldthin1.Monkey'stailis________thantherabbit'stail.2.Dickis11yearsold.Ninais12yearsold.Dickis________thanNina.3.I'm140cm______.4.I'm40kg.You're42kg.I'm________thanyou.5.How_______areyou?I'm45kglongeryoungertallthinnerheavy1.Howheavyareyou?__________.A.I'm48yearsold.B.I'm48kg.C.I'm48cm.2.Tomis120cm.Jackis________Thanhim.A.tallB.tallerC.heavier3.Howheavyisthewhale?__________.A.It'sstrong.B.It'sheavier.C.It's3600kg.4.How__________areyou?A.oldB.olderC.taller5.Themonkeyhasa________tail.A.tallB.longC.longer6.Howbigareyourfeet?_________.A.IwearSize17.B.I'mbiggerthanyou.C.I'm17bigger.7.Jimis40kg.Tomis38kg.Tomis___thanJim.A.tallerB.thinnerC.heavier8.I'm11yearsold.Mysisteris2yearsolderthanme.Sheis________.A.11B.12C.139.Iam________thanmyaunt.A.strongB.bigC.shorter10.Myfatheris________thanmygrandpa.A.olderB.youngerC.smaller11.Myarmsare87cm____________.A.longB.tallC.old12.Hislittlebrotheris3kg____thanme.A.olderB.shorterC.heavierIV.改错题。(8分)1.Howoldareyou?Iam170cmtall.()___ABC2.Youareyoungthanme.()____ABC3.Peoplegrowoldandolder.()____ABC4.Howoldisyoumother?()______ABCAHowtallByoungerBolderCyour1.your,is,big,roomhow(?)______________________________________2.I'm,than,taller,6cm,you(.)_____________________________________3.mypencil,longer,yours,is,than(.)_____________________________________4.Tall,21,I，,am,meters(.)_____________________________________5.stronger,he,me,than,is(.)______________________________________Howbigisyourroom?I'm6cmtallerthanyou.Mypencilislongerthanyours.Iam21meterstall.Heisstrongerthanme.6.short,its,is,tail(.)_________________________________________7.wear,I,17,size(.)_________________________________________8.are,tall,you,how(?)_________________________________________9.size,shoes,what,are,his(?)_________________________________________10.taller,are,your,than,you,brother(.)_________________________________________Itstailisshort.Iwearsize17.Howtallareyou?Whatzisearehisshoes?Youaretallerthanyourbrother.Yourbrotheraretallerthanyou