1形容词和副词的比较级和最高级一.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二.形容词和副词比较级的用法级别比较程度表达方式和意义例句备注原级同等程度肯定形式As+原级+as(像……一样)Artisasinterestingasmusic.Playaswellasyoucan.否定形式not+so(as)+原级+as(不如……那样)Englishisnotsodifficultasscience.ShedoesnotstudysowellasIdo.比较级不同程度(用于两者比较)比较级+than(比……)JimisolderthanLuky.Ilikeporkbetterthanbeef.比较级前面可以加much,far,even,still,alot,alittle,abit等程度加深比较级+and+比较级(越来越……)The+比较级,the+比较级(越…,越…)Heisgrowingtallerandtaller.Hestudiesbetterandbetter.Themorebooksshereads,thebettersheunderstand.最高级最高程度/用于三者或三者以上The+最高级+of/in(最…)Springisthebestseasonoftheyear.LinTaojumped(the)farthestofall.副词最高级前面的the往往省略情况加法例词一般情况直接加-er;-estall-taller-tallest以e结尾的词加–r;-stnice-nicer-nicest以“辅音+y”结尾的词变y为i再加-er;-estdry-drier-driestheavy-heavier-heaviest以一个辅音字母结尾的词辅音字母双写,再加-er;-estthin-thinner-thinnest多音节和部分双音节单词在词前加more;mostmoredeliciousmostdelicious2注意:有些形容词,如dead,empty,round,sure,woolen等受本身含义的限制,没有比较级。三.形容词副词比较级最高级的其他用法(1)和冠词连用the+形容词原级+v(复),指一类人或物the+形容词比较级,指两者中“较…的”的那一个,eg.theyoungerofthetwoa/an+形容词比较级eg.Thepenisexpensive.Iwantacheaperone.(a)+most+形容词最高级“非常…”eg.amostbeautifulcity(2)相关结构1)原级比较:肯定句as….as….,否定句notso/as….as…..2)比较句:比较级+than….或more(less)….than…..Thefurnitureinthisshopislessbeautifulthanthatinthatshop.(注意代词that的用法)3)比较级+and+比较级或moreandmore+比较级“越来越…”richerandricher,moreandmoreinteresting4)Themore…..,themore…..“越…,越…”Themoreyoulookatthepicture,thebetteryouwilllikeit.5)比较级+thananyother+n.(单)(适用于范围一致时)(all)other+n.(复)any+n.(单)(适用于范围不一致时)Heistallerthananyotherstudent/allotherstudentsinhisclass.anystudentinmyclass.6)倍数表达法。Aisthree(four,etc.)timesthesize(height,lengthetc.)ofB.Aisthree(four,etc.)timesasbig(high,long,etc.)asB.Aisthree(four,etc.)timesbigger(higher,longer,etc.)thanB.用times表倍数通常用于三倍以上,两倍可以用twice或double.Thenewbuildingisfourtimesthesize(theheight)oftheoldone.这座新楼比那座旧楼大三倍(高三倍)。AsiaisfourtimesaslargeasEurope.亚洲比欧洲大三倍。Yourschoolisthreetimesbiggerthanours.你们的学校比我们的学校大三倍。7)more…than…结构,其意往往是…ratherthan…,可译为“是……而不是……”或颠倒词序译作“与其说是……,不如说是……”。Thatlittlegirlismoretiredthanhungry.那个小姑娘是累了而不是饿了。Sheismoreamotherthanawife或Sheismoreofamotherthanawife.她是贤妻,更是良母。8)最高级+of/in/among….Heisthetallestofthethree/amongthem/inisclass.3练习与巩固一、写出以下各形容词的比较级和最高级:1.nice______________________2.fat____________________3.slow_____________________4.dry____________________5.happy____________________6.wet____________________7.much____________________8.ill_____________________9.little_____________________10.bad___________________11.thin______________________12.far____________________13.early_____________________14.careful_________________15.exciting___________________16.busy__________________二、根据句意,用所括号内所级形容词的比较等级形式填空:1.Bobis_________(young)thanFredbut___________(tall)thanFred.2.Yingtianisnotas___________(tall)asYongxian.3.Almostallthestudents'facesarethesamebutLiDeminglooks_______(fat)thanbefore.4.Whichis_________(heavy),ahenorachicken?5.--How_________(tall)isSally?--She's1.55metres________(tall).WhataboutXiaoling?--She'sonly1.40metres________(tall).Sheismuch_______(short)thanSally.Sheisalsothe_______(short)girlintheclass.6.Heis______(bad)atlearningmaths.Heismuch_______(bad)atChineseandheisthe_________(bad)atEnglish.7.AnniesaysSallyisthe________(kind)personintheworld.8.Heisoneofthe_________(friendly)peopleintheclass,Ithink.9.Adictionaryismuch(expensive)thanastory-book.10.Anorangeiaalittle______(big)thananapple,butmuch________(small)thanawatermelon.11.TheChangjiangRiveristhe_______(long)riverinChina.12.Sueisalittle___________(beautiful)thanhersister.13.Myroomisnotas_________(big)asmybrother's.14.--Howdifficultisphysics?--I'mnotsure.--Isit________(difficult)thanmaths?--Idon'tthinkso.15.--Annieplaysthepianovery___________(well).--Sueplaysit_____(well)thanAnnie.AndSallyplaysitthe_______(well).16.Saturdayismy_________(busy)dayinaweek.17.Hermotherisgetting____________(fat)and________(fat).18.Ithinkit'stooexpensive.I'dlikea_____________(cheap)one.19.Hecomestoschoolmuch____________(early)thanI.20.Thisbookisnotas_____________(interesting)asthatone.21.Yourclassroomis__________(wide)and___________(bright)thanours.22.Practiseas__________(much)asyoucan.23.The________(much),the____________(good).24.Nowadays(现在)Englishis________(important)thananyothersubject.25.Mostofthestudentsthinkalionismuch________(dangerous)thanabearanditisthe__________(dangerous)animalintheworld.26.Mr.Smithis_________maninthisoffice.(rich)27.Winteris_________seasonoftheyears.(cold)28.Thisradioisnotso________asthatone.(cheap)29.Itismuch_______todaythanyesterday.(hot)30.Sheisalittle________thanherclassmates.(careful)31.________peoplecametothemeetingthanlasttime.(many)32.Whichbookis________,thisoneorthatone?(easy)33.Myroomis_______thanyours.(small)34.Hainanis_______fromBeijingthanHunan.(far)435.Skatingis_______thanswimming.(exciting)36.Jimis_______thanalltheothers.(honest)37.Thingsaregetting_______and_______.(bad)38.Thehigheryouclimb,the_______itwillbe.(cold)39.N