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形容词和副词的比较级和最高级ComparativeandSuperlativeDegreesofAdjectivesandAdverbs请你思考：什么是形容词和副词？形容词用于修饰名词，表示人或事物的属性或特征等。副词是用来说明动作或状态的特征,说明时间，地点，程度等概念。它用来修饰动词、形容词、副词、短语或句子。形容词和副词的级别大多数形容词和副词有三个等级：原级比较级最高级请你观察：形容词和副词比较等级的变化规律longlongerlongestnicenicernicestbigbiggerbiggestearlyearlierearliestinterestingmoreinterestingmostinterestingcarefullymorecarefullymostcarefullyfriendlymorefriendlymostfriendlyfriendlierfriendliestgoodbetterbestmany/muchmoremost原级比较级最高级请你总结：形容词和副词比较等级构成的规律一.规则变化：1.单音节和部分双音节词,在词尾直接加-er,-est2.以字母e结尾的,加-r,-st3.以重读闭音节结尾且末尾只有一个辅音字母，双写此字母,再加-er,est4.以“辅音字母+y”结尾的，把y变成i，再加-er,est5.多音节词和大部分双音节词,在词的前面加more或most6.有些双音节词既可用more,most形式，又可用-er,-est形式二.不规则变化请给出下列形容词或副词的比较级和最高级tallnearlargeablethinhotfunnyhappybeautifulquicklyquietlittletallertallestnearernearestthinnerthinnestablerablestlargerlargesthotterhottestfunnierfunniesthappierhappiestmorebeautifulmostbeautifulmorequicklymostquicklyquieterquietestmorequietmostquietlessleast请你牢记：一，要双写再加-er,-est的词有哪些？hotbigfatthinredwetsadglad…二.不规则变化的词有哪些？原级比较级最高级good/wellbetterbestbad/ill/badlyworseworstmany/muchmoremostlittlelessleastoldolderoldesteldereldestfarfartherfarthestfurtherfurthest温馨提示：1.类似slowly,quickly这样的双音节词，虽然也是辅音字母加y结尾，但这里的-ly是表示副词的后缀，因此比较级和最高级的构成是在单词前加more和most。2.强调程度时，形容词和副词前可加上too,very,so,quite等。比较级前则要加上much,even,alittle,alot,still,abit等词(组)，表示程度。3.farther常指时间、距离上的远。further可以代替farther，还常用于引伸和抽象的意义，表示“进一步，更深刻，更深入等”。4.older表示年龄大小或年代的久远，elder表示兄弟姐妹之间的长幼关系。形容词和副词原级的用法：2.…as+原级+as…“……和……一样”Youareastallasme.=YouareastallasI(am).HehasasmanybooksasI(have).Thiscomputerrunsasfastasthatone.3.…notas(so)+原级+as…“……不如/没有……”Thisjacketisnotas(so)cheapasthatone.Shehasnotas(so)manybooksasIhave.Henrydoesn’tstudyas(so)hardashiselderbrother.注：as在这里既可作介词又可作连词。作介词时，后接人称代词的宾格。作连词时，后接一个省略的比较状语从句。1.用来直接描述人物或动作。Johnisatallboy.Rabbitsrunfast.Ourcountryisbeautifulandstrong.形容词和副词比较级的用法：1.…比较级+than…“……比……更……”Youaretallerthanme.=YouaretallerthanI(am).Idon’tthinkhiswritingismorebeautifulthanyours.3.比较级+and+比较级“越来越……”Theweatherisgettingwarmerandwarmer.Ourschoolisgettingmoreandmorebeautiful.注：than在这里既可作介词又可作连词。作介词时，后接人称代词的宾格。作连词时，后接一个省略的比较状语从句。4.the+比较级…,the+比较级…“越……,越……”Themoreexerciseyoudo,thehealthieryouwillbecome.2.比较级(特殊疑问句)，…or…?“哪个更……?”Whichislonger,thisoneorthatone?形容词和副词最高级的用法：1.…the+最高级+(名词)+表示范围的短语或从句“……是最……”Bobisthetallestboyinourschool.HeisthekindestmanthatIhaveevermet.LiTaojumps(the)farthestofall.Sheisthemostcarefulstudentofusthree.4.…oneofthe+最高级(形)+名词(复)+表示范围的短语“……是……当中最……之一”ShanghaiisoneofthebiggestcitiesinChina.注:形容词最高级前一般要加the,副词最高级前可加可不加3.最高级(特殊疑问句)，…，…or…?“哪个更……?”Whoistheyoungest,Jim,TomorJenny?2.…thesecond(third…)+最高级+(名词)+表示范围的短语“……是第二(三……)……”TheChongmingIslandisthethirdbiggestislandinChina.Correctthemistakes:1.Mary’shairislongerthanmysister.2.TheweatherinBeijingiscolderthaninShanghai.3.Theapplesinthisbasketarebetterthantheminthatbasket.4.TheChangjiangRiverislongerthananyriverinChina.5.ChinaislargerthananyothercountryinEurope.6.HisolderbrotheriselderthanI.7.Ourcountryisgettingmorebeautifulandmorebeautiful.8.Thisclassroomisthreetimesasbiggerasthatone.9.Whoistalleststudentinourschool?10.Whichdoyoulikebetter,apples,bananasorpears?_______mysister’s__________that…____those___anyother________any____elder____older_____________________moreandmore_____big_____thetallest_____(the)bestCorrectthemistakes:11.Thisboxismoreheavierthanthatone.12.Tomistheyoungestinthethree.13.Heistallerofthetwo.14.Todayisourthebusiestday.15.IthinkmathisverymoredifficultthanChinese.16.Therearemuchmorepeopleinthestreetthanusual.17.MikeissotallasJack.18.LiYingjumpedfartherthanJimjumped.19.TheYellowRiveristhesecondlongerriverinChina.20.Wemustgetfartherinformation.___________heavier__of____thetaller______our____much_____many__as______(did)_____longest______further用括号内形容词或副词的适当形式填空:1.Thishorseisvery________(strong),butthathorseismuch_________(strong)thanthisone.2.It’ssolate,soIdrivethecar___________(slowly)thanusual.3.Hewent______________(far)thantheotherexplorers.4.The____(little)youeat,the_________(thin)youare.5.TheBeijingLibraryisoneof__________(big)librariesinChina.6.Thestreetisas_______(long)asthatone,butitis_____(wide)thanthatone.7.Hisdrawingisn’tso_______(good)asyours.8.Whenapieceoficeistakenintoawarmroom,itbecomes__________(small)and__________(small).9.Thispianois______________(expensive)thantheothertwo.Itis__________________(expensive)ofthethree.10.Whichis________________(difficult),English,physicsorbiology?strongstrongerlessfarther/furtherlongsmallermoreexpensivethemostdifficultmoreslowlygoodthebiggestwidersmallerthemostexpensivethinner合并句子，每空一词：1.Lucyis8yearsold.Lilyis8yearsold,too.Lucyis__________________Lily.2.Dannyis15.Jennyis12.Jennyis______________________thanDanny.3.Jimjumps2metreshigh.Tomjumps3metreshigh.Tomjumps_______________Jim.4.Jennyjumpsfar.BrainjumpsfartherthanJenny.DannyjumpsfartherthanBrain.Dannyjumps_______________thethree.5.Acarruns150kilometresperhour.Abikeruns50kilometresperhour.Acarruns_________________________asabike.Acarruns____________thanabikehigherthanfarthestofthreetimes