比较级1ppt课件

.,1,形容词(adj.)和副词(adv.),.,2,形容词：用于修饰名词或代词，描述被修饰成分的性质、特征、状态或属性等。Eg.Thisisagoodbook.(修饰名词book)Sheisbeautiful.(修饰代词she),副词：主要用于修饰动词、形容词和副词，描述被修饰成分的特征或状态。Eg.Jimplaysbasketballwell.(修饰动词play)Sheisverybeautiful.(修饰形容词beautiful)Jimplaysbasketballverywell.(修饰副词well),.,3,形容词和副词的比较等级（假设A和B为进行比较的人或事物）,1、原级：使用形容词或副词原形，表示A与B一样（或不一样）。,2、比较级：使用形容词或副词比较级形式，表示A与B二者相比哪一个更。,3、最高级：使用形容词或副词最高级形式，表示三者（或三者以上）相比哪一个最。,形容词或副词比较级和最高级的构成,.,4,1.一般在词尾后加er或est.tall-taller-tallestlong-longer-longestyoung-younger-youngestsoon-sooner-soonestclever-cleverer-cleverestfast-faster-fastestcold-colder-coldestnear-nearer-nearestbright-brighter-brightestshort-shorter-shortestnew-newer-newesthigh-higher-highestlow-lower-lowestslow-slower-slowest2.以不发音的元音“e”结尾的形容词,加er或est.close-closer-closeststrange-stranger-strangestfine-finer-finestlarge-larger-largestwide-wider-widestwhite-whiter-whitestnice-nicer-nicestlate-later-latest,.,5,3.以辅音字母加“y”结尾的形容词,先把“y”变为“i”,再加er或est.angry-angrier-angriestbusy-busier-busiestcloudy-cloudier-cloudiestdirty-dirtier-dirtiestearly-earlier-earliesteasy-easier-easiesthappy-happier-happiestheavy-heavier-heaviest.以重读闭音节结尾的形容词，如末尾只有一个辅音字母，应先写双这一个辅音字母，再加er或est.big-bigger-biggestthin-thinner-thinnestfat-fatter-fattestwet-wetter-wettesthot-hotter-hottestred-redder-reddest,.,6,形容词或副词比较级和最高级的构成1）规则变化单音节词和少数双音节词词尾加er/est变为比较级/最高级。加er/est方法与动词变过去式加ed方法相同。Eg.talltaller/tallestnicenicer/nicestbigbigger/biggesteasyeasier/easiestclevercleverer/cleverest(clever双音节)多音节词和一些双音节词在该词前加more/most变为比较级/最高级。以ly结尾的副词除early以及不规则变化外，也应加more/most。Eerestingmore/mostinterestingcarefulmore/mostcarefulslowlymore/mostslowly,.,7,形容词或副词比较级和最高级的构成2）不规则变化good/wellbetter,bestbad/badly/illworse,worstmany/muchmore,mostlittleless,least*oldolder,oldest年长的；老的；旧的elder,eldest（亲戚关系中）年长的*farfarther,farthest远的further,furthest远的（有更加、进一步的含义）补充说明：fewfewer,fewestfriendlyfriendlier,friendliest(adj.)more/mostfriendlyoftenmore/mostoften,.,8,Exercises:请将下列词变成比较级和最高级,bright-long-late-wide-angry-popular-quickly-good-bad-,brighter,brightest,longer,longest,later,latest,wider,widest,angrier,angriest,more/mostpopular,more/mostquickly,better,best,worse,worst,.,9,形容词或副词各比较等级的基本用法,.,10,1、原级：使用形容词或副词原形，表示A与B一样（或不一样）。主要用于Aas/(notso)asB结构。Eg.1)JimisastallasMike.JimisnotsotallasMike.2)JimworksashardasMike.JimdoesntworksohardasMike.,.,11,2、比较级：使用形容词或副词比较级形式，表示A与B二者相比哪一个更。主要用于AthanB结构。Eg.1)JimistallerthanMike.2)JimworksharderthanMike.比较级用法扩展,.,12,比较级用法扩展1）比较级前面可以有much,alittle,alot,even等修饰语。Thisbookismuchbetterthanthatone.好得多2）比较级比较级，表示越来越hotterandhotter越来越热moreandmorebeautiful越来越漂亮3）than后面的人称代词用主格或宾格都可以。HeistallerthanI(am).Heistallerthanme.补充：Heisthetallerofthetwoboys.,.,13,3、最高级：使用形容词或副词最高级形式，表示三者（或三者以上）相比哪一个最。主要用于thein/among/of+所包含人或事物的数量3的集合短语结构。Eg.1)Jimisthetallestinourclass.2)Jimworks(the)hardestofalltheboys.最高级用法扩展,.,14,最高级用法扩展形容词最高级前的the在以下几种情况下可以省略：1）该形容词前有物主代词或名词所有格。Heismy/Jimsbestfriend.2）比较含义模糊。WearebusiestonMonday.Thisisamostinterestingbook.这里的most相当于very。补充：Chinaisoneofthemostbeautifulcountries.TheYellowRiveristhesecondlongestriverinChina.,.,15,Exercises:根据所给提示词填空。Myhouseis_(large)thanJims.Todayismuch_(warm)thanyesterday.Whichbookis_(interesting),thisoneorthatone?Kateis_(good)thanmeatEnglish.Whois_(tall)boyinyourclass?Mikeruns_(fast)ofallthestudents.Ihave_(much)moneythanyou.8.Yesterdaywasmy_(happy)dayinmylife.9.Mybrotherisnotso_(strong)asme.10.MrSmithisthe_(short)ofthetwomen.,larger,warmer,moreinteresting,better,thetallest,(the)fastest,more,happiest,strong,shorter,.,16,观察下列各句，辨别括号中单词的词类。1.Heisa(fast)worker.2.Heworksvery(fast.)3.Thatsa(hard)mathproblem.4.Youhavetowork(hard)atyourlessons5.Ifeel(better)now.6.Heplaysfootball(better)thanI.7.Tomdraws(worse)thanhisbrother.8.Hewas(worse)thanhisbrother.9.Ofalltheboys,hereads(best.)10.Ofalltheboys,heisthe(best.)11.Thatplaneflew(high)thatday.,.,17,12.Thatplaneis(high)intheskynow.13.A(straight)lineistheshortestbetween2points.14.Stand(straight).15.Healwaysspeaksina(low)voice.16.Heisacleverbusinessman.Healwaysbuys(low)andsellshigh.17.Attheendofthestreeet,thereisa(low)wall.18.Wedidntgo(far)becauseweknewthatfamousplacewastoo(far)away.19.Heisa(slow)boy.Hesalways(slow)tomakeuphismind.Andheevenlikestotakea(slow)trainwhenhetravel.20.Pleasetellthedrivertogo(slower).21.The(last)timeI