精品文档est的规则：形容词和副词的比较级加er、最高级加faster/fastestfasttaller/talleste.g.tall⑴一般在词尾加er/est，，nicenicer/nicestwide⑵以字母e结尾，加wider/widestr/st⑶以一个元音字母和一个辅音字母结尾，应双写末尾的辅音字母，再加er/est，E.g.hothotter/hottestfatfatter/fattest⑷以辅音字母礫结尾，先把y变i，再加er/est，E.g.easyeasier/easiestheavyheavier/heaviest(5)多音节形容词的比较级在前面加more、最高级在前面加themost、most。E.g.beautifulmorebeautiful/themostbeautifulinterestingmoreinteresting/themostinterestingusefulmoreuseful/themostuseful（6）不规则变化：good/wellbetter/bestbad/badlyworse/worstfarfarther/farthestmany/muchmore/mostlittleless/least练习：写出下列形容词或副词的比较级和最高级oldyoungtalllongshortstrongbigsmallfatthinheavylightnicegoodbeautifullowhighslowfastlateearlyfarwellfantasticbadlylargecoldwarmhotcoolnewclever形容词的比较级一、形容词比较级在句子中的运用：两个事物或人的比较用比较级，比较级后面一般带有单词than。than后的人称代词用主格（口语中可用宾格）。e.g.1.Samistall.Amyistallerthanhe.(Sam是高的。Amy比他高。)．．．．．．2.Eveisold.Simonisolderthanshe.(Eve是大的。Simon比她还大。)．．．．．3.Iamthin.LauraisthinnerthanI.(我是瘦的。Laura比我还瘦。)．．．．．．．4.Wearehungry.Theyarehungrierthanwe.(我们饿了。他们比我们还饿。)5.Picture1isgood.Picture2isbetterthanpicture1.(图片1好。图片2比图片1还好。)．．．．．．6.Ihavegotmanypostcards.LinglinghasgotmorepostcardsthanI(havegot).(我有许多明信片。．．．．玲玲拥有的明信片比我拥有的多。)7.Amyisbeautiful.LauraismorebeautifulthanAmy.(Amy是漂亮的。Laura比Amy还漂．．．．．．．．．．．．．亮。)8.Whoisstronger,SimonorDaming?(Simon和Daming谁更强壮？)．．．．．．．．练习一：根据句意填入单词的正确形式：1.Mybrotheristwoyears____(old)thanme.2.Isyoursister____(young)thanyou?Yes,sheis.3.Whois____(thin),youorHelen?Helenis.4.Whosepencil-boxis___(big),yoursorhers?Hersis.5.Ben___(jump)___(high)thansomeoftheboysinhisclass.6.___Nancysing____(well)thanHelen?7.Myeyesare___(big)than___(she).8.Whichis___(heavy),theelephantorthepig?9.Whogetsup___(early),TimorTom?10.__thegirlsgetup___(early)thantheboys?No,they___.二、比较级前面可以用more,alittle等来修饰表示程度。e.g.1.Iambusy.ButTomismorebusierthanI.(我忙。但是Tom比我忙得多。)2.Australiaislarge.ChinaismorelargerthanAustralia.(澳大利亚是大的。中国比澳大利亚大得多。)3.Youareshort.ButIthinkMaxisalittleshorterthanyou.(你是矮的。但是我认为Max比你还矮一点。)4.Linglingiscute.ButLauraisalittlecuterthanshe.(玲玲是可爱的。但是Laura有点比她可爱。)精品文档．精品文档三、可以用“as+原级+as”来表示两个人或事物一样……。e.g.1.Todayisaswarmasyesterday.(今天和昨天一样暖和。)2.IsthereamountainashighasMountQomalangma?(有没有一座山像珠峰一样高？)3.Isthereananimalascleverasamonkey?(有没有一个动物像猴子一样聪明？)4.Amyisasnaughtyashersister.(Amy像她妹妹一样淘气。)5.WhichcityisasfamousasSanFrancisco?(哪个城市像旧金山一样著名？)6.WhichwallisaslongastheGreatWall?(那一面墙像长城一样长？)7.Whosebookisasdirtyasyours?(谁的书像你的这么脏？)练习三：根据句意填入单词的正确形式：1.Tomisas___(fat)asJim.2.IsMary'shairas____(long)asLucy's？Yes,she_____.3.Fangfangisnotas___(tall)astheothergirls.4.Thechilddoesn't___(write)as__(fast)asthestudents.比较级和最高级练习写出下列单词的最高级1.hot____2.new________3.clean________4.high________5.heavy______6.cold_______7.bad______8.little_________写出下列形容词的比较级和最高级1.nice____...