初中英语形容词比较级和最高级

形容词说明人或事物的特征、性质或状态，常用来修饰名词或不定代词的词叫形容词。一、形容词原级的用法1.说明人或事物自身的特征、性质或状态时用形容词的原级。如：Theflowersinthegardenarebeautiful.2.有表示绝对概念的副词very，so，too，enough，quite等修饰时用原级。如：Theboyistooyoung.3.表示A与B在某方面程度相同或不同时用形容词原级。1）肯定句中的结构：“A……+as+形容词原级+as+B”如：EnglishisasinterestingasChinese.2）否定句中的结构：“A……not++as/so+形容词原级+as+B”如：Thisbookisn’tsonewasthatone.（注：否定句的结构中部分双音节和多音节形容词除了使用“not……as/so+形容词原级+as”结构外，还可以使用“less+形容词原级+than”结构。如：HethinksChineseislessinterestingthanEnglish.3）表示“A是B的…….倍”时，“A+倍数+as+形容词原级+as+B”结构（一倍：once，两倍：twice，三倍及以上：基数词+times）如：Ourschoolisthreetimesasbigastheirs.4）“halfas+形容词原级+as”表示“……是……的一半”如：Herroomishalfasbigasyours.小试牛刀：1.Itis______formetofollowtheAustralianguestsbecauseIamgoodatEnglish.A.badB.easyC.hardD.right2.Ican’tseeanythingintheboxbecauseitis______.A.heavyB.thinC.fullD.empty3.Theairinthecountrysideis______,somanypeoplefromthecitydrivecarsthereonweekends.A.freshB.prettyC.deliciousD.beautiful4.–Whatdoyouthinkofyourneighbor?--He’sso______thathelikestomeetandtalktonewpeople.A.seriousB.outgoingC.quietD.smart5.–InourEnglishstudyreadingismoreimportantthanspeaking,Ithink.--Idon’tagree.Speakingis______reading.A.asimportantasB.soimportantasC.themostimportantD.thesameas6.Nowadayssciencefictionisn’tas_______ascartoonsamongteenagers.A.popularB.themostpopularC.lesspopularD.morepopular二、形容词比较级的用法1.单音节词和少数双音节词比较级和最高级的规则变化：规则原级比较级最高级1.在词尾后直接加-er/esttalltallertallest2.词尾是e，只加-r/stnicenicernicest3.以辅音字母加y结happyhappierhappiest尾的，把y变i再加-er/est4.重读闭音节，末尾只有一个辅音字母，双写这个辅音字母，再加-er/estthinthinnerthinnest2.其他双音节词或多音节词,在该词前面加-more/mostbeautiful—morebeautiful—(the)mostbeautiful3.不规则变化:goodbetterbestbad/illworseworstmanymoremostlittlelessleastfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest4.比较级用法1）表示两者进行比较时用形容词的比较级，其结构为“A+形容词比较级+than+B”如：Lily’sroomisbiggerthanmine.2）有表示程度的副词（alittle，abit，agreatdeal，alot，much，even，still，far等）修饰形容词时，该形容词可以用比较级。如：Itismuchhottertodaythanyesterday.3）表示两者之间进行选择“哪一个更……”时，用句型“Which/Who+be+形容词比较级，AorB？”表示。如：Whoistaller,LiMingorWangTao?4）表示“几倍于……”时，用“倍数+比较级+than”表示。如：Yourroomisthreetimesbiggerthanmine.5）表示“两者之间比较…….的一个（ofthetwo）”时，常用“the+比较级”结构，如：Maryisthetallerofthetwins.6）表示“越来越…….”用比较级重叠结构，即“比较级+and+比较级”，当形容词是多音节词或部分双音节词时，用“moreandmore+形容词原级”。如：It’sgettingwarmerandwarmerinspring.7）表示“越……越……”时，用“the+比较级，the+比较级”结构。如：Themore,thebetter.小试牛刀：1.Theairinmountainareasis______thatinbigcities.A.asfreshasB.fresherthanC.asdirtyasD.dirtierthan2.Travelingabroadismuch_____thanbefore.A.easyB.easierC.easiestD.theeasiest3.–Doctor,I’mgetting_______.--Well,you’dbettereat_____food.A.fatandfat;moreB.fatterandfatter;fewerC.moreandmorefatter;lessD.fatterandfatter;less4.–Tim,doyouthinktimeismoney?--Yes,butIthinkitis_____money.A.moreimportantthanB.veryimportantasC.thesameasD.notimportantas5.Airpollutionisbecoming______thaneverbefore.Wemustdosomethingtostopit.A.seriousB.moreseriousC.mostseriousD.themostserious6.–Therelationbetweenthetwocountriesgets______.Awarseemstobreakoutsoon.--Ihopetheywillmakepeacewitheachother.A.worseandworseB.betterandbetterC.moreandmorebeautiful7.–Whichis______,Tom,teaorcoffee?--Coffee,Ithink.Idrinkiteveryday.A.moredeliciousB.muchdeliciousC.lessdeliciousD.mostdelicious三、形容词最高级的用法1.表示三者或三者以上的人或物进行比较时，用最高级形式。形容词最高级前必须加定冠词the,句末常跟一个in/of短语来表示范围。如：ShanghaiisthebiggestcityinChina.2.表示在三者或三者以上的人或物中进行选择时，用“Which/Who+be+the+最高级，A,BorC？“结构。如：Whichcityisthemostbeautiful,Beijing,ShanghaiorChangsha?3.表示“最…..的…..之一”时，用“oneofthe+形容词最高级”结构，该形容词后面的名词要用复数。如：JayChouisoneofthemostpopularsingers.4.形容词最高级前面可以加序数词，表示“第几最……”如：TheYellowRiveristhesecondlongestriverinChina.5.形容词最高级前面可以用物主代词、指示代词、名词所有格等修饰，此时不能再用定冠词。如：Thisisourbestlessontoday.6.形容词比较级结构可以表示最高级含义。如：LiLeiisthetalleststudentinhisclass.=LiLeiistallerthananyotherstudentinhisclass.=LiLeiistallerthantheotherstudentsinhisclass.=LiLeiistallerthananyoneelseinhisclass.=NooneistallerthanLiLeiinhisclass.=NooneisastallasLiLeiinhisclass.=LiLeiistallerthananyoftheotherstudentsinhisclass.=LiLeiistallerthantherestofthestudentsinhisclass.小试牛刀：1.MoYanisoneof_______writersintheworld.A.FamousB.morefamousC.mostfamousD.themostfamous2.–Whois______runningstarinyourschool?--IthinkWuTaois.A.famousB.morefamousC.themostfamousD.lessfamous3.–Whichcityhas______population,Beijing,GuiyangorXingyi?--Xingyi,ofcourse.A.thelargestB.thesmallestC.themostD.theleast4.–LifeofPibyLiAnisoneof______filmsIhaveeverseen.--Ilikeitverymuch,_____.A.thegreatest;eitherB.greater;tooC.greater;eitherD.thegreatest;too实战演练：Part1用of，than，in，as填空。1.Thistableisasbig_______thanone.2.Theyellowbookislarger______theblueone.3.Tomisthebeststudent_____theclass.4.Thislessonismoreinteresting______thatone.5.Thisappleisthelargest______alltheapples.Part2单项选择。1.Johnismy_______friendofalltheclassmates.A.goodB.betterC.bestD.thebest2.E-mailingismuch______thanlong-distancecalling.A.cheapB.cheaperC.cheapestD.thecheapest3.Beijingisoneof______citiesinChina.A.verybeautifulB.muchbeautifulC.morebeautifulD.themostbeautiful4.TheYellowRiverisn’tso______astheChangjiangRiver.A.longB.longestC.longerD.thelongest5.ThecoatIboughtlastweekistoobigfor