形容词的比较级(theComparativeDegree)和最高级(theSuperlativeDegree)的构成和使用1．构成形容词有原级，比较级和最高级三种构成，比较级和最高级有规则和不规则变化，变化如下：（1）单音节词和少数以er，ow结尾的双音节词在词尾后加er，est原级比较级最高级eg.calmcalmercalmestclevercleverercleverestsmartsmartersmartest(quiet,long,short,tall,clean,high,new,young,fast,wild)（2）以e结尾的单音节词，词尾只加-r,-st原级比较级最高级eg.finefinerfinestlatelaterlatest(large,nice,cute)(3)重读闭音节以一个辅音字母结尾的单词，双写辅音字母加-er–est原级比较级最高级eg.bigbiggerbiggesthothotterhottest(thin,red,fat)(4)以辅音字母加y结尾，变y为i加-er–est原级比较级最高级eg.happyhappierhappiestdrydrierdriest(heavy,lazy,easy,healthy,early,dirty,funny,curly,friendly,lovely,ugly,hungry)(5)在多音节词和部分双音节词前用more,most表示:eg:beautifulmorebeautifulmostbeautifulimportantmoreimportantmostimportantdeliciousmoredeliciousmostdelicious(tired,often,difficult,serious,athletic,outgoing,careful,interesting,interested,exciting,popular,quickly,slowly,carefully,quietly)(6)不规则变化原级比较级最高级eg.good/wellbetterbestlittlelessleastmany/muchmoremostbad/ill/badlyworseworstoldolder/elderoldest/eldestfarfartherfarthestfurtherfurthest1.比较级用法结构比较级用于2个人或2个事情之间的比较①“A比B更怎样”：Abe+比较级+thanB.Ahave+比较级sththanB.Eg.Heistaller/shorterthanI.Myhairislongerthanyours.=Ihavelongerhairthanyou.Igetupearlierthanmysister.注意:有时比较的对象不出现,或者没有than.Whichstudentismoreathletic,MayorTim?Whatdoyoulikebetter,singingordancing?Tobethinner,youshouldeatmorevegetablesandlessmeat.①.他比我高。Heis________(tall)thanme.②.他的头发比我的短。Hishairis________(short)than_________.Hehas________(short)hairthan________.③.Tom比我胖。Tomis_____(fat)thanme.④.谁跑得快些，Lucy还是Lily？Whoruns_________,LucyorLily?⑤.英语比语文重要。Englishis_______________(important)thanChinese.⑥.我来的比你晚。Icome_______(late)thanyou.⑦.他比你小2岁。He’s2years_________thanyou.“两者中更…的那个”：the+比较级+of+thetwoThiswatchisthecheaperofthetwo.Heisthebetterofthetwo.Ofthetwogirls,Lilyisthesmarter.③越来越怎样Adj.+erandadj.+er/moreandmore+adj.Eg.It’sbiggerandbigger.Thetreeismoreandmorebeautiful.Theearthisgetting______and______.(warm)Chinais_____________beautiful.Iam________