八年级英语比较级和最高级讲解与练习

比较级和最高级一、比较级的用法:当两个人或事物（A和B）进行比较时，我们需要用到形容词（副词）的原级或者比较级1．表达“A和B一样”，用as…as的结构。公式:A+be动词+as+形容词原级+as…+BA+实义动词+as+副词原级+as…+BEgIamastallasyou.HerunsasfastasI.我的房间和她的一样大。他游得和我一样好。2．表达“A不如B”用notas…as的结构。公式:A+be动词的否定形式+as+形容词原级+as…+BA+助词的否定形式+动词+as+形容词原级+as…+BEgIamnotastallasyou.Hedoesn’trunasfastasI.我的房间没有他的大。我没有他游得好。3.表达“A大于B”用“比较级+than”的结构。公式:A+be动词+形容词比较级+than+B…A+实义动词+副词比较级+than+B…EgIamtallerthanyou.我比你高。HerunsfasterthanI.他跑得比我快。我的房间比他的大。我游得比他的好。4.表示A是...中最大的结构公式：A+be动词+the+形容词最高级+范围A+实义动词+the+形容词最高级+范围Iamthetallestinmyclass.Herunsthefastestinmyclass.我的房间是这里最大的。我游得是我们班最好的。二.形容词和副词的比较级和最高级的变化方法如下(1)符合规则的：(2)几个不规则的形容词和副词的比较级和最高级如下表：原级比较级最高级good,wellbetterbestbad,illworseworstmany,muchmoremostlittlelessleastfarfarther/furtherfarthest/furthest练习1：写出下列词的比较级和最高级tall﹍﹍﹍﹍slow﹍﹍﹍﹍small﹍﹍﹍﹍fast﹍﹍﹍﹍smart﹍﹍﹍﹍few﹍﹍﹍﹍nice﹍﹍﹍﹍fine﹍﹍﹍﹍large﹍﹍﹍﹍late﹍﹍﹍﹍brave﹍﹍﹍﹍pretty﹍﹍﹍﹍easy﹍﹍﹍﹍funny﹍﹍﹍﹍happy﹍﹍﹍﹍lazy﹍﹍﹍﹍heavy﹍﹍﹍﹍dirty﹍﹍﹍﹍dry﹍﹍﹍﹍early﹍﹍﹍﹍情况加法例词一般情况直接加-er;-estall-taller-tallest以不发音e结尾的词去e加–er;-estnice-nicer-nicest以“辅音+y”结尾的词变y为i再加-er;-estdry-drier-driestheavy-heavier-heaviest重读闭音节结尾的词双写末尾辅音字母，再加-er;-estthin-thinner-thinnest多音节和部分双音节单词在词前加more;mostmoredeliciousmostdeliciousbusy﹍﹍﹍﹍slim﹍﹍﹍﹍hot﹍﹍﹍﹍big﹍﹍﹍﹍thin﹍﹍﹍﹍fat﹍﹍﹍﹍wet﹍﹍﹍﹍beautiful﹍﹍﹍﹍﹍﹍﹍﹍interesting﹍﹍﹍﹍﹍﹍﹍﹍important﹍﹍﹍﹍﹍﹍﹍﹍dangerous﹍﹍﹍﹍﹍﹍﹍﹍expensive﹍﹍﹍﹍﹍﹍﹍﹍polite﹍﹍﹍﹍﹍﹍﹍﹍careful﹍﹍﹍﹍﹍﹍﹍﹍exciting﹍﹍﹍﹍bad/badly/ill﹍﹍﹍﹍little﹍﹍﹍﹍many/much﹍﹍﹍﹍old﹍﹍﹍﹍﹍﹍﹍﹍far﹍﹍﹍﹍﹍﹍﹍﹍练习2填空1.Bobis_________(young)thanFredbut___________(tall)thanFred.2.Yingtianisnotas___________(tall)asYongxian.3.Almostallthestudents'facesarethesamebutLiDeminglooks_______(fat)thanbefore.4.Whichis_________(heavy),ahenorachicken?5.Heis______(bad)atlearningmaths.Heismuch_______(bad)atChineseandheisthe_________(bad)atEnglish.6.AnniesaysSallyisthe________(kind)personintheworld.7.Anorangeiaalittle______(big)thananapple,butmuch________(small)thanawatermelon.8.TheChangjiangRiveristhe_______(long)riverinChina.9.Sueisalittle___________(beautiful)thanhersister.10.Myroomisnotas_________(big)asmybrother's.11.--Howdifficultisphysics?--I'mnotsure.--Isit________(difficult)thanmaths?--Idon'tthinkso.12.--Annieplaysthepianovery___________(well).--Sueplaysit_____(well)thanAnnie.AndSallyplaysitthe_______(well).13.Saturdayismy_________(busy)dayinaweek.练习3：选择1.Whichdoyoulike_______,teaorcoffee?A.wellB.betterC.bestD.most2.Thisworkis_______formethanforyou.A.difficultB.mostdifficultC.muchdifficultD.moredifficult3.Whojumped_______ofall?A.farB.fartherC.farthestD.themostfar4.LiLeiis_______studentinourclass.A.tallB.tallerC.tallestD.thetallest5.Tomisoneof_______boysinourclass.A.tallestB.tallerC.thetallestB.thetall6.Englishisoneof_______spokenintheworld.A.theimportantlanguagesB.themostimportantlanguagesC.mostimportantlanguageD.themostimportantlanguage7.Whichis_______,LiLeiorWuTong?A.strongB.strongestC.strongerD.thestrongest8..Jeanworkshardbutshedoesn’twork____Mary.A,asharderthanB,ashardthanC,asharderasD,ashardas9.Thisis____bookinourlibrary.A,themostinterestingB,mostinterestingC,themoreinterestingD,moreinteresting10.TheygotaChristmastreeanditwas____ours.A,sotallasB,sotallerasC,astallasD,astalleras11.Ataxidoesn’trunas____asanundergroundtrain.A,fastB,fasterC,fastestD,morefast12.YangpuBridgeisoneof____intheworld.A,biggerbridgeB,thebiggestbridgeC,thebiggestbridgesD,biggerbridges13.Hercousincandraw____anartist.A,aswellasB,notsowellasC,asbetterasD,asgoodas14.JinmaoToweris____buildinginShanghai.A,highB,tallC,highestD,thetallest15.Thisboxis___thatone.A.heavythanB.soheavythanC.heavierasD.asheavyas16Ithinkthestoryisnotso___asthatone.A.interestingB.interestedC.moreinterestingD.mostinteresting