形容词的比较级和最高级

ComparativeandsuperlativebyJiangxueTeachingaims：1掌握形容词比较级和最高级的构成规则2掌握形容词比较级和最高级的基本用法Teachingdifficulties掌握形容词比较级和最高级的构成方法及用法Teachingsteps：Stepone：比较级和最高级的规则变化表构成法原级比较级最高级1.单音节词末加-er和-estgreatgreatergreatest2.单音节词以-e结尾,只加-r和-stbravefinebraverfinerbravestfinest3.闭音节单音节词如末尾只有一个辅音字母,须先双写这个辅音字母,再加-er和-estbighotbiggerhotterbiggesthottest4.以辅音字母加y,则变y为i,再加-er和-esthappyhappierhappiest5.双音节和多音节词在前面加more和mostdifficultmoredifficultmostdiffcult规则词语变化口诀：形容词有比较级，一般词尾加er；结尾若有哑音e，直接加r就能够；辅元音，闭音节，最后字母要双写；辅音字母叫上y，去y变i加er；单词若是多音节，前面再来加上more.不规则变化表：good/wellbetterbestbad/badly/illworseworstmany/muchmoremostLittle（少）/fewlesslestfarfarther（更远）/further（表水准）farthest/furthestoldolder(新旧或年龄)/elder（长幼关系）oldest/eldest不规则口诀：合二为一共三对；坏，病，两多并两好；一分为二有两个；一是“远来”，二是“老”;有一词含双义，只记“少”来不记“小”。Steptwo：比较级的基本用法及常用的句型结构：含义：两个人或事物之间的比较标志词：than能够修饰比较级的副词：muchalotfar(…得多)alittleabit(一点)even（甚至）rather（更）eg：LessononeismucheasierthanLessontwo.Tomlooksalittleyoungerthanbefore.常用句型：A+谓语+形容词比较级+than+B表示“A比B…”Eg:TomistallerthanKate.汤姆比凯特高。Igetupearlierthanmymothereverymorning.我每天早晨起床比我妈妈还早。2.A+谓语+形容词比较级+than+anyother+单数名词表示“A比其他任何一个都…”（甲最…）Eg:TheYangtzeRiverislongerthananyotherriverinChina.TheYangtzeRiveristhelongestriverinChina.3.”比较级+and+比较级”（moreandmore）表示“越来越……”Eg:Heisgettingtallerandtaller.Thestorybecamemoreandmoreinteresting.(注意：多音节形容词或副词表示越来越用：moreandmore+adj/adv原级)4.“the+比较级，the+比较级”表示“越…,越…”Eg:Themore,thebetter.Themoreweget,thehappierwewillbe.最高级的基本用法及常用句型：用法：三者或者三者以上的人或者事物的比较。标志词①in+短语（在…之中）②of+短语（在…当中）主语+the+最高级+in/of短语表示“…是…中最…的”Eg:Tomisthetallestinhisclass/ofallthestudents.Thisappleisthebiggestofthefive.Ijumpthefarthestinmyclass.2.”主语+be+oneofthe+形容词最高级+复数名词”，表示“…是…中最…之一”Eg:BeijingisoneofthelargestcitiesinChina.原级比较用法：两者就同一事物进行比较。句型结构：肯定句as+形容词原级+as表示“与…一样”否定句notso/as+形容词原级+as表示“…不如…”Eg:Sheisastallashersister.Herunsnotsofastashisclassmates.翻译句子这本书跟那本书一样有趣。Thisbookis____________________thatone.你游泳没有你弟弟好。Youcannotswim_________________yourbrother.她的身体状况一天天好起来。Sheisgetting________________everday.他对英语越来越感兴趣。Heisbecoming_______________________English.写出下列形容词的比较急和最高级Nice____　_____late___________large___________-Much____________little___________bad_____________Hot_____________thin____________big_____________Early_____________happy_______　_______easy_____________Careful________________________exciting_______________________单项选择1.Sheis________than________.A.busier/usB.busier/weC.morebusy/usD.morebusy/we2.Janeis________thanBetty.A.lesstallerB.lesstallestC.lesstallD.notastall3.Chinais________countryintheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargest4、-Whichis____seasoninBeijing?--Ithinkit'sautumn.A.goodB.betterC.bestD.thebest5、-Whichis__________,thesun,themoonortheearth?--Ofcourse,themoonis.A.smallB.smallerC.smallestD.thesmallest6.TheairinBeijingisgettingmuch_____nowthanafewyearsago.A.cleanB.cleanerC.cleanestD.thecleanest7.Mobilephonesareverypopularnowandtheyare_____thanbefore.A.cheapB.cheaperC.cheapestD.thecheapest8．IstudyEnglishas_______asmybrother.A.hardB.harderC.hardest9.Whichis_____,abicycleoracomputer?A.expensiveB.moreexpensiveC.themostexpensive10.TheYellowRiverisoneof______riversinChina.AlongBlongerCthelongest