比较级.doc

一)形容词、副词比较级和最高级的构成：1.单音节词和少数双音节词比较级和最高级的规则变化：规则 原级 比较级 最高级1.在词尾后直接加-er/est tall taller tallest2.词尾是e，只加-r/st nice nicer nicest3.以辅音字母加y结尾的，把y变i再加-er/est happy happier happiest4.重读闭音节，末尾只有一个辅音字母，双写这个辅音字母，再加-er/est thin thinner thinnest5.由形容词加ly构成的双音节词和多音节词,都是在该词前加-more/most. quickly morequickly mostquickly6.由动词加-ing/ed构成的形容词，在该词前加-more/most. bored morebored mostbored7.其他双音节词或多音节词,在该词前面加-more/most beautiful morebeautiful mostbeautiful2.不规则变化:good/well better bestbad/badly worse worstmany/much more mostlittle less leastfar farther/further farthest/furthest（一）形容词比较级和最高级的用法：1.原级的用法:用于两者之间对比，意思为“和(不)相同”A+be+(not)as/so.+形容词原级asBMydogisasoldasthatone.Heisnotas/sotallasI.Theweatherhereisnotas/socoolastheweatherinHarbin.2.比较级的用法:1）A+be+形容词比较级+than+BSusanishappierthanJane.Hisbrotherisyoungerthanme.BeijingismorebeautifulthanOsaka.形容词比较级前还可以用much,even,still,alittle来修饰。2）A+be数字+形容词比较级+than+B.Imtwoyearsolderthanyou.Sheisaheadtallerthanme.3）比较级+and+比较级，表示“越来越”Theearthisgettingwarmerandwarmer.Chinabecomesmoreandmorestronger.4）the+比较级，the+比较级结构，表示“越就越”ThemoreIstudyit,themoreIlikeit.5）which/who+is+比较级,AorB?Whichcityisbigger,BeijingorTianjin?Whoishappier,youorme?3.最高级用法：用于三者及以上的人或事物的比较,最高级前要加定冠词the，最高级前有物主代词，序数词和名词所有格时，不加定冠词，后面跟带in或of表范围的短语。1）oneofthe+最高级ShanghaiisoneofthemostbeautifulcitiesinChina.Ourcityisoneofthesafestcitiesintheworld.Itisournearestneighborinspace.2）最高级意义的表达方法:例句 最高级 Sheisthebestinherclass.比较级 Sheisbetterthananyotherstudentinherclass.Nootherstudentinherclassisbetterthanshe.原级 Nootherstudentinherclassisasgoodasshe.（三）副词比较级和最高级的用法：1.原级主要的句型：1）A+v.+as+副词原级+as+BTomrunsasfastasJones.A+v.+notas/so+副词原级+as+BHedidntcomeas/soearlyasLiLei.2）too+副词原级+todosth.Jeanridestooslowlytocatchupwithme.3）so+副词原级+thatJeanridessoslowlythatshecantcatchupwithme.4）副词原级+enoughtodosth.Jeandoesntridefastenoughtocatchupwithme.2.比较级的用法：1）比较级+than。当前后使用的动词相同时，通常用助动词来代替后面的动词，该动词或助动词可以省略。LilyrunfasterthanMary(did).2）比较级+and+比较级Thedaysaregettinglongerandlongerinsummer.3）themorethemoreTheharderyouwork,thebetteryouwilllearn.3.最高级的用法：副词最高级前一般有the，也可省略。Heworks(the)hardestofallthestudentsintheclass.（四）课堂练习：单选：1.TheairinBeijingisgettingmuchnowthanafewyearsago.A.cleanB.cleanerC.cleanestD.thecleanest2.isyourgrandpa,Emma?Heswateringtheflowersinthegarden.A.WhenB.WhatC.WhereD.How3.Nowadayssciencefictionisntasascartoonsamongteenagers.A.popularB.morepopularC.lesspopularD.themostpopular4.WearegladtoseethatShanghaiisdevelopingtheseyearsthaneverbefore.A.quicklyB.lessquicklyC.morequicklyD.themostquickly5.Thecheesecaketastedsothatthekidsaskedformore.A.deliciousB.wellC.badD.badly6.Shelooksvery.Ithinksheneedstohavearest.A.tiredB.hardC.wellD.hardly7.doyouplaycomputergames?Onceaweek.A.HowsoonB.HowoftenC.HowlongD.Howmany8.ThepopulationofTianjinisthanthatofShanghai.A.larger B.less C.smaller D.fewer9.Itsraining.Wehavetostayathomeinsteadofgoingfishing.A.badly B.hardly C.heavily D.strongly10.Canyougiveahandwiththistable?Iwanttomoveit.Sure.areyougoingtoputit?A.Why B.How C.Where D.When11.GuoYuedidquiteattheWorldTableTennisChampionship,butZhangYiningdideven.A.better,wellB.well,wellC.well,betterD.better,better12.TomissixandheishissisterJane.HowoldisJane?Three.A.twiceasoldas B.twoyearsolderthanC.threeyearsyoungerthan D.asoldas13.Remember,boysandgirls.youwork,resultyouwillget.Weknow,MissGao.A.Thebetter,theharderB.Theharder,thebetterC.Thehard,thebetterD.Theharder,thegood14.Jackhasthreefriends.Mikeistheofthefour.A.mostcleverest B.moreclever C.cleverest D.clever15.InourEnglishstudyreadingismoreimportantthanspeaking.Ithink.Idontagree,speakingisthanreading.A.asimportantas B.soimportantasC.themostimportant D.thesameas【模拟试题】（答题时间：25分钟）I.用Of,than,in,as填空。1.Thistableisasbigthatone.2.Theyellowbookisbiggertheblueone.3.Tomisthebeststudenttheclass.4.Thislessonismoreinterestingthatone.5.Thisappleisthelargestalltheapples.II.单选。1.Johnismyfriendofalltheclassmates.A.goodB.betterC.bestD.thebest2.E-mailingismuchthanlong-distancecalling.A.cheapB.cheaperC.cheapestD.thecheapest3.BeijingisoneofcitiesinChina.A.verybeautifulB.muchbeautifulC.morebeautifulD.themostbeautiful4.TheYellowRiverisntsoastheChangjiangRiver.A.longB.longestC.longerD.thelongest5.ThecoatIboughtlastweekistoobigforme.Idliketochangeitforaone.A.smallB.largerC.nicerD.smaller6.Whoisthe,Jim,LiLeiorLingFeng?A.tallB.tallerC.tallestD.muchtaller7.Ofallthestudents,WuDongruns.A.fastB.fasterC.fastestD