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形容词副词的比较级与最高级一.定义比较级comparativedegree在英语中通常用下列方式表示的词：在形容词或副词前加more(如morenatural,moreclearly)或加后缀-er(newer,sooner)。典型的是指形容词或副词所表示的质、量或关系的增加。英语句子中，将比较两个主体的方法叫做“比较句型”。其中，像“A比B更……”的表达方式称为比较级。组成句子的方式是将形容词或副词变化成比较级的形态。二.形容词、副词比较级和最高级有规则变化和不规则变化（1）一般情况下，单音节或双音节的形容词（或副词）比较级＋er最高级＋estclever－cleverer－cleverestfew－fewer－fewestsmall－smaller－smallest等（2）以e结尾的词，比较级＋r，最高级＋st即可nice－nicer－nicestcute－cuter－cutestlarge－larger－largest（3）以辅音字母＋y结尾的变y为i＋er或esteasy－easier－easiesthappy－happier－happiest再如：early,busy,heavy,dirty,lazy.也如此（4）双写最后一个辅音字母＋er或est的词同学要用心去记。1.fat－fatter－fattest2.thin－thinner－thinnest3.hot－hotter－hottest4.big－bigger－biggest（5）多音节和部分双音节的词需要在形容词原级前＋more构成比较级,＋themost构成最高级。beautiful－morebeautiful－themostbeautiful.delicious,popular,important,interesting,expensive双音节的词如careful－morecareful－themostcarefuluseful－moreuseful－themostuseful.少数单音节词也是这样如：pleased－morepleased－themostpleasedtired－moretried－themosttired.比较级练习（一）I.Writetheanswers.（根据题意，写出答案。）1.Theblackdogis_____(thin)thanthewhitedog.2.Thisballoonis_____(big)thanyours.3.Mybagis_____(heavy)thanyours.4.Johnis_____(strong)thanMike.5.Iam_____(short)thanLucy.6.Turtleswalk__moreslowly__________(slowly)thananyotheranimal.7.Mybrotheristwoyears__elder/older_(old)thanme.8.Benjumps___higher(high)thansomeoftheboysinhisclass.9.DoesNancysing___better_(well)thanHelen?Yes,shedoes.10.Whogetsup_earlier_(early),TimorTom?11.Thechilddoesn’twriteas___fast__(fast)asthestudentsII.用所给词的正确形式填空，每词用一次。Younglongtallheavyoldthin1.Monkey’stailisthantherabbit’stail.2.Dickis11yearsold.Ninais12yearsold.DickisthanNina.3.I’m140cm.4.I’m40kg.You’re42kg.I’mthanyou.5.Howareyou?I’m45kg.III.选择填空。()1.Howheavyareyou?__________.A.I’m48yearsold.B.I’m48kg.C.I’m48cm.()2.Tomis120cm.Jackis__________.Thanhim.A.tallB.tallerC.heavier()3.Howheavyisthewhale?__________.A.It’sstrong.B.It’sheavier.C.It’s3600kg.()4.How__________areyou?A.oldB.olderC.taller()5.Themonkeyhasa__________tail.A.tallB.longC.longer()6.Howbigareyourfeet?_________.A.IwearSize17.B.I’mbiggerthanyou.C.I’m17bigger.()7.Jimis40kg.Tomis38kg.Tomis________thanJim.A.tallerB.thinnerC.heavier()8.Tomisbetterthananyother______inhisclass.A.StudentsB.studentC.studntsD.studentes()9.Iam________thanmyaunt.A.strongB.bigC.shorter()10.Myfatheris________thanmygrandpa.A.olderB.youngerC.smallerIV.选出形容词的比较级形式tall-strong-old-thin-heavy-big-V.连词成句。1.your,is,big,roomhow____________________________________________2.I’m,than,taller,6cm,you____________________________________________3.mypencil,longer,yours,is,than______________________________________4.tall,21,I，,am,meters_______________________________________________