小学英语比较级

一、形容词、副词的比较级和最高级的构成规则1．大多数单词的变法small→smaller→smallestshort→shorter→shortestgreat→greater→greatestclever→cleverer→cleverestnarrow→narrower→narrowesttall→taller→tallest2．以不发音e结尾的单音节词，比较在原级后加-r，最高级在原级后加-st；large→larger→largestnice→nicer→nicest3．先双写末尾的辅音字母，比较级加-er，最高级加-est；big→bigger→biggesthot→hotter→hottestfat→fatter→fattestthin-thinner-thinnestnew--newer/newestsad-sadder--saddestred--redder--reddest4．以“辅音字母＋y”结尾的双音节词，把y改为i，比较级加-er，最高级加-est；easy→easier→easiestheavy→heavier→heaviestbusy→busier→busiesthappy→happier→happiest5．其他双音节词和多音节词，比较级在前面加more，最高级在前面加most；beautiful→morebeautiful→mostbeautifuldifferent→moredifferent→mostdifferent注意：（1）形容词最高级前通常必须用定冠词the，副词最高级前可不用。6．有少数形容词、副词的比较级和最高级是不规则的，必须熟记。good-----better------best好的well------better------best身体好的bad------worse------worst坏的ill--------worse-------worst病的many--------more------most许多much------more--------most许多few------less-------least少数几个little-------less------least少数一点儿far------further------furthest更进一步，程度far------farther------farthest更远，路程old-------older------oldest年老的（指年纪）old------elder-------eldest年老的（指兄弟姐妹的排行）二、形容词、副词的比较级和最高级的用法1．“A+be+形容词比较级+than+B”意思为“A比B更……”。如：Thistreeistallerthanthatone.这棵树比那棵树高。注意：①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。②在比较级前面使用much，表示程度程度“强得多”。如：Awatermelonismuchbiggerthananapple.2．“比较级+and+比较级”或“moreandmore+原级”表示“越来越……”Itbecomeswarmerandwarmerwhenspringcomes.春天来了，天气变得越来越暖和了。Itisgettingcoolerandcooler.天气越来越凉爽。Thewindbecamemoreandmoreheavily.风变得越来越大。Ourschoolisbecomingmoreandmorebeautiful.我们的学校变得越来越美丽。3.“the+比较级……,the+比较级”，表示“越……越……”。Themoremoneyyoumake,themoreyouspend.钱你赚得越多，花得越多。Thesooner，thebetter.越快越好。4.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。5.比较级与最高级的转换：Mikeisthetallestintelligentinhisclass.Mikeismoretallerthananyotherstudentinhisclass.【练习】一．1.Myschoolis_____,butTom’sschoolis_____thanmine.AndSally’sschoolisthe_________.(small)2.Rabbitscanrun_______,buttigerscanrun_____thanrabbits,andcheetahscanrun___________ofthethree.(fast)3.Pigis________,butdeeris______thanpig,andelephantisthe______________(heavy)4.I’m___________,butsheis_______thanme.(beautiful)5.Everydayis_______.Buttodayisthe______dayIhaveeverhad.(busy)6.Ithinkpizzaisthe________foodofall.(delicious)7．Mybrotheristwoyears______(old)thanme.8.Isyoursister_______(young)thanyou?Yes,sheis.9.Whois________(thin),youorHelen?Helenis.10.Whosepencil-boxis_____(big),yoursorhers?Hersis.11．Benjumps______(high)thansomeoftheboysinhisclass.12．DoesNancysing______(well)thanHelen?Yes,shedoes.13．Myeyesare________(big)thanhers.14．Whichis________(heavy),theelephantorthepig?15．Whogetsup______(early),TimorTom?16．Dothegirlsgetup____(early)thantheboys?No,they______.17．Jimruns____(slow).ButBenruns_____(slow).二，根据句意写出所缺的单词(1)I’m12yearsold.You’re14.I’mthanyou.(2)Arabbit’stailisthanamonkey’stail.(3)Anelephantisthanapig.(4)Alakeisthanasea.(5)Abasketballisthanafootball.三，选出合适的单词完成句子heavytalllongmuchmanybig(1)HowistheYellowRiver?(2)HowisMrGreen?He’s175cm.(3)Howareyourfeet?Iwearsize18.(4)HowisthewhiteT-shirt?It’s100yuan.(5)Howapplesarethereinthebag?Thereare5.(6)Howisthefish?It’s2kg.四，连词成句1.is,my,this,computer(.)2.your,is,that,computer(.)3.teacher’sdesk,this,is,a(?)4.is,it,time,what(?)5.o’clock,it’s,two(.)6.time,math,for,it’s,class(.)7.this,is,your,T-shirt(?)8.colour,it,is,what(?)9.warm,it’s,today(.)10.play,let’s,football(.)11.much,how,it,is(?)12.yuan,it’s,ten(.)