1形容词和副词的比较级和最高级讲解与练习一、变化规则①一般的比较级和最高级在形容词或副词后加-er或-est，如：small---smaller---smallest②以不发音-e结尾的形容词或副词直接加–r或–st，如:large---largest---largest③重读闭音节词尾是一个辅音字母的，需双写该辅音字母，再加-er或-est。如：big---bigger---biggest④以辅音字母加y结尾的形容词和副词，把“y”变“i”，再加–er或-est.如：busy---busier---busiesthappy---happier---happiest⑤一些双音节及多音节形容词或副词前要加more和most，如：slowly---moreslowly---mostslowlybeautiful---morebeautiful---mostbeautiful还有一些不规则的变化：二、形容词和副词的等比句型①as+原级+as⋯和⋯⋯一样原级比较级最高级goo/wellbetterbestmany/muchmoremostbad/badly（坏地）worseworstlittlelessleastoldolder（年龄）/elder(辈份)oldest/eldestfarfarther距离/further（程度）farthest/furthest2I’mastallasyou.②notas(so)+原级+as不和⋯⋯一样（在否定句中常用so来代替as）如：Ican’trunsofastasyou.另外as⋯aspossible为固定结构“尽可能的”如：assoonaspossible,asquicklyaspossible“尽快”等。在以上两个句型中形容词或副词一定要用原级。练习：我的房间不如你的干净。______________________________你必须跟他一样认真。________________________________▲as⋯as前还可以加倍数,如:Theroomistwotimesaslargeasthatone.三、比较级（两者之间）(1)两者相比:Whichis+比较级,AorB?如:Whichisbigger,thesunorthemoon?(2)比较级+than.如:MikeistallerthanJohn.(3)有"ofthetwo”,用the+比较级.如:Lucyisthemorecarefulofthetwo.(4)比较级前可用much/alot/far/alittle/abit/even等修饰.如:Thisbookismuchmoreinterestingthanthatone.TheblouseIboughtyesterdayisalittlelessexpensive.3Toplaybasketballisfarmoreenjoyabletotheboy.(5)比较级+and+比较级,表“越来越⋯⋯”Itbecomeswarmerandwarmer.(6)“the+比较级，the+比较级”,表“越⋯⋯，越⋯⋯”Thehigheryoustand,thefartheryouwillsee.练习：1.你吃的越多,就会越胖._______________________2.Mikelooks_____thanPaul,buttheyareofthesameage.A.youngestB.theyoungestC.youngerD.veryyounger四、最高级(三者或三者以上)1)三者或三者以上相比较用“the＋最高级＋名词＋范围（of/all+---）”。例如：Thisisthecleanestplaceofthecity.这是这个城市最清洁的地方。HuYunisthefastestofallthegirlsinourclass.胡云是我们女生中跑得最快的。2）表示“最⋯⋯之一”，用“oneofthe+形容词最高级＋复数名词”。例如：TheGreatWallofChinaisoneofthegreatestbuildingsintheworld.中国的长城是世界上最伟大的建筑之一。ThisisoneofthemostinterestingbooksthatI'veeverread.这是我读过的最有趣的书之一。4注意：形容词的最高级前面必须加定冠词the，但当形容词最高级前面有物主代词修饰时，则不加the。副词前面的the可以省略。例如：（正）Thisismybestfriend.（误）Thisismythe(themy)bestfriend.（正）Todayisthehappiestdayofmylife.（误）Todayishappiestdayofmylife.练习：Sheisthetallestinhisclass.=Sheis______(tall)thananyotherstudentinhisclass.课堂练习1.Whichlessonis__________(difficult)inBook2?2.Alicewrites_____________(carefully)thanI.3.Thisstoryis____________(interesting)thanthatone.4.Thatwasoneof_________(exciting)momentsin2008.5.Thiskindoffoodmustbe________(delicious)thanthatone.单选1．TheYellowRiverisoneof___inChina.A.thelongestriversB.thelongerriverC.thelongestriverD.thelongriver2.DoeshespeakChinese___hisbrother?A.asbetterasB.asgoodasC.aswellasD.bestthan3.Whichshirtdoyoulike___,thewhiteoneortheblueone?A.betterB.goodC.bestD.much54.Thispicturebookisnot___thatone.A.sointerestingasB.sointerestingthanC.asinterestingthanD.interestingas5.Thisarticleis___thanthatone.A.mucheasierB.moreeasier...
