小学英语形容词的比较级和最高级-ppt课件

.,Lesson1:,形容词、副词的比较级和最高级,.,Adj.adv.,.,用来修饰动词、形容词、其它副词、全句或名词词组及句子的词。e.g.,very,early,quickly,etc.,Herunsfast.Todayisveryhot.Pleasereaditloudly.,.,用以修饰名词，表示事物的特征的词。e.g.long,tall,short，cheap,hungry,etc.,一般来说，中文意思是“的”的词是形容词，而中文意思是“地”的词是副词。,.,形容词比较级用于两者（人或事物）之间的比较，表示其中一个比另一个“更”或“较”，后面用连词than连接另一个所比较的人或事物。例如：,1.Thatrulerislongerthanthisone.2.Maryisyoungerthanme(I).,“A+be+形容词比较级+than+B”意思为“A比B更”,比较级用法：,.,在含有连词than的比较级中，前后的比较对象必须是同一范畴，即同类事物之间的比较*比较应在同类事物中进行.在比较级前面使用much，表示程度程度“强得多”。如：Awatermelonismuchbiggerthananapple.very,quite一般只能修饰原级，不能修饰比较级。,比较级注意,.,young-yonger-yongestoldolder-oldesttall-taller-tallestsmall-smaller-smallest,early-earlier-earliestthirsty-thirstier-thirstiest,1.一般情况下在形容词或副词后加-er（比较级）或est（最高级）:,2.以字母e结尾的形容词，加-r或-st,4.以“辅音字母y”结尾的形容词，先改“y”为“i”，再加-er或-est.,bigbigger-biggestfatfatter-fattest,形容词比较级最高级规则,nicenicer-nicestsafesafer-safest,3.重读闭音节词只有一个辅音字母时，应先双写辅音字母，再加-er或-est.,一,.,5.部分双音节词或多音节词前面加more,most.如:interestingmoreinterestingmostinterestingfamousmorefamousmostfamous,.,不规则变化,两好、两坏、两多、一少、一远、一老.,.,Readandcompare:,younglongfullshortsmalloldfineeasyhungryearlyheavybigred,youngeryoungest,longerlongest,fullerfullest,shortershortest,smallersmallest,olderoldest,finerfinest,easiereasiest,hungrierhungriest,earlierearliest,heavierheaviest,biggerbiggest,redderreddest,.,healthymanyfamousexcitingcarefullywethotlittlefew,healthierhealthiest,moremost,morefamousmostfamous,moreexcitingmostexciting,morecarefullymostcarefully,wetterwettest,hotterhottest,lessleast,fewerfewest,.,tallerharderlargerwider,tallesthardestlargestwidest,biggerhotterfatterwetter,biggesthottestfattestwettest,happierdrierearlier,happiestdriestearliest,narrowercleverer,narrowestcleverest,moredifficultmorepopularmoreslowly,mostdifficultmostpopularmostslowly,少数以-er,-ow结尾的双音节词可加-er或-est,规则变化,.,better,best,worse,worst,less,more,most,farther/further,older/elder,least,farthest/furthest,oldest/eldest,不规则变化,巧记：特殊形式比较级共有三对二合一坏病两多并两好little意思不是小一分为二有两个一是老来二是远,.,.其主要句型有：(1)A+be+比较级+than+Be.gMaryismuchyoungerthanSue.(2)(3)疑问句+动词+比较级,AorB?e.gWhodrawsbetter,TomorJim?(4)比较级+and+比较级，表示越来越e.gthedaysaregettingshorterandshorter.,二.形容词、副词比较等级的用法,A+行为动词+副比+than+物体B.Dogsrunfasterthangoats.Hestudiesbetterthanme,.,最高级概念：,形容词、副词的最高级形式主要用来表示三者或三者以上人或事物的比较，表示“最”的意思。句子中有表示范围的词或短语。如：ofthethree,inourclass等等。如：Heisthetallestinourclass.他在我们班里是最高的。,.,最高级用法：,1）A+am/are/is+the+形最高级+比较范围（of+人/物，in+地方）.Iamthetallestintheclass.Pastaisthemostdeliciousfoodofthethree.,2）A+行为动词+副词最高级+比较范围（of+人/物，in+地方）.Dogsrunfastestintheworld.Hestudiesbestofus.,.,Jimworkshardestofusall.,Mymotheristhebusiestinmyfamily,e.g,4）疑问词+动词+最高级5)whichlikebest,A,BorC?,最高级用法：,.,一、形容词比较等级的规则变化如下：,.,二、不规则形容词的比较级最高级,.,练习,1.tall_2.nice_3.strong_4.old_5.big_6.thin_7.heavy_8.beautiful_9.good_,taller,stronger,older,tallest,stronges,oldest,bigger,biggest,thinner,thinnes,nicer,nicest,heavier,heaviest,morebeautiful,mostbeautiful,better,best,.,形容词和副词的比较级和最高级构成：规则变化1单音节词在词尾加-er比较级，加-est最高级。原级比较级最高级brightbrighterbrightestyoungyoungeryoungestlonglongerlongest,.,2.以字母e结尾的词只加-r或-st构成比较级和最高级。nicenicernicestfinefinerfinestwhitewhiterwhitest3.重读闭音节以一个辅音字母结尾的，应先双写辅音字母，再加-er或-est.bigbiggerbiggest,.,4.以辅音字母加-y结尾的词，先把-y变为I，再加-er-est.easyeasiereasiest5.部分双音节词和多音节词分别在原级前加more构成比较级和most构成最高级，eg.slowly-moreslowly-mostslowly；beautiful-morebeautiful-mostbeautiful,.,不规则变化:个别形容词的比较级和最高级是不规则变化，需个别记忆。e.g.good(well)betterbestbad(badly,ill)worseworstmany(much)moremostlittlelessleastfarfather/furtherfarthest/furthest,.,改错：1.Imthanyou.2.Heisthanme.3.Youreinourschool.4.Whois,youorme?5.Sheisinherfamily.,tall,youngger,shortest,fat,taller,younger,theshortest,fatter,thethinnest,thinest,.,选择填空1.WhichdoesJimmylike,ChineseorArt?A.wellB.bestC.betterD.much2.TheChangjiangRiverisoneofintheworld.thelongestriverB.longestriversC.thelongestriversD.longerrivers3.ofthetwowomenisMrsBrown.A.ThebeautifulB.ThemorebeautifulC.MorebeautifulD.Themostbeautiful4.Mymooncakeisnicerhis.A.likeB.withC.forD.than5.Youarefatterthan.A.heB.hisC.himD.heistall6.Myhairislongerthan.A.mysisterB.KateC.mybrothersD.Lucys,C,C,B,D,A,C,.,16.Motherisinmyfamily.A.busyB.busierC.thebusiestD.morebusy18.Thedumplingsarethanthenoodles,Ithink.A.morenicerB.muchdeliciousC.veryniceD.muchmoredelicious19.Sheisthanmeatdrawings.A.betterB.bestC.goodD.harder20.-Thisbluesweateristoobigforme.-Willyoupleaseshowmeaone?A.smallB.smallerC.thesmallestD.smallest,C,D,A,B,.,改错,Lesson9ismoreeasierthanLesson10.Mymotherisyoungerthanyour.Heisoneoftallestboysinhisclass.Bettyistheyoungestonthethreegirls.Motheristhebusiestofmyfamily.Jimisshorterofthetwoboys.,you,thetallest,of,theshorter,in,.,一1.Myschoolis_,butTomsschoolis_thanmine.(small)2.Rabbitscanrun_,buttigerscanrun_thanrabbits.(fast)3.Pigis_,butelephantis_thanpig.(heavy)4.Im_,butsheis_thanme.(beautiful)5.Everydayis_.Buttodayis_thanbefore.(busy)6Mybrotheristwoyears_(old)thanme.7.Isyoursister_(young)thanyou?Yes,sheis.8.Whois_(thin),youorHelen?Helenis.,Exercise,small,fast,faster,heavier,heavy,morebeautiful,beautiful,busier,busy,older,younger,thinner,smaller,.,9.Whosepencil-boxis_(big),yoursorhers?Hersis.10Benjumps_(high)thansomeoftheboysinhisclass.11DoesNancysing_(well)thanHelen?Yes,shedoes.12Myeyesare_(big)thanhers.13Whichis_(heavy),theelephantorthepig?14Whogetsup_(early),TimorTom?15Dothegirlsgetup_(early)thantheboys?No,they_.16Jimruns_(slow).ButBenruns_(slow).,bigger,higher,better,bigger,heavier,earlier,earlier,dont,slow,slower,.,二、根据句意写出所缺的单词(1)Im12yearsold.Youre14.Im_thanyou.(2)Arabbitstailis_thanamonkeystail.(3)Anelephantis_thanapig.(4)Alakeis_thanasea.(5)Abasketballis_thanaping-pong.,older,shorter,heavier,smaller,bigger,.,以How开头的问句（仅限小学阶段）：,Howareyou?Howold?Howtall?Howlong?Howbig?Howheavy?Howmany?Howmuch?,问身体状况。,问年龄,问身高,问长度,问大小（指外型、形体的大小）,问体重、重量,问多少，物体的数量,问价格,.,三，选出合适的单词完成句子heavytalllongmuchmanybig(1)How_istheYellowRiver?(2)-How_isMr.Gr