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1、形容词比较级和最高级的构词规则规则变化1.单音节和少数双音节单词，一般在词尾加“er”或“est”。clean,tall,small,cheap,short,long,light,high2.以不发音字母“e”结尾的单词，直接在词尾加“r”或“st”。nice,late,close,fine,large,free,rude以重读闭音节结尾的单词，如果词尾只有一个辅音字母时，应先双写这一辅音字母，再加“er”或“est”。fat,big,red,thin,hot,fat,sad,wet以辅音字母+y结尾的
2、单词，应先改“y”为“i”，在加“er”或“est”。happy,easy,heavy,healthy,busy,lucky,pretty,sunny,funny5.其他双音节单词和多音节单词，都在其前面加“more”或“most”。(beautiful,interesting)6.不规则变化。记忆口诀：合二为一共三对，“坏bad”,“病ill”,两多many/much”和“两好good/well”，一分为二只两个，一是“远far”来二是“老old”，还有一词little含双义，只记“少”来不记“小”。
3、Readandcompare:younglongfullshortsmalloldfineeasyhungryearlyheavybigredyoungeryoungestlongerlongestfullerfullestshortershortestsmallersmallestolderoldestfinerfinesteasiereasiesthungrierhungriestearlierearliestheavierheaviestbiggerbiggestredderreddestheal
4、thymanyfamousillexcitingcarefullywethotlittlefewhealthierhealthiestmoremostmorefamousmostfamousworseworstmoreexcitingmostexcitingmorecarefullymostcarefullywetterwettesthotterhottestlessleastfewerfewestI.原级用法:***1.as+adj/adv.的原级+as(肯,否),(not)so…as(否)eg.Th
5、erulerisaslongasthatone.HesingsaswellasJack.Hedoesn’tsingas(so)wellasJack.2.asmuchas,asmanyas与…一样多eg.Ihavedoneasmuchworkashedidyesterday.Youcantakeasmanybooksasyoucan.II.比较级用法:1.比较级+than比较级+and+比较级,表示“越来越”eg.warmerandwarmer,nicerandnicer,moreandmorebeaut
6、iful,moreandmorefunthe+比较级…the+比较级eg.Themoreyoureadthebook,themoreinterestingyoufound.***4.比较级的修饰语有:much,far,even,alittle,alot,abit,rather,still,agreatdeal(大量)+adj./adv.比较级5.当比较级后没有than,而为ofthetwo的结构,比较级前加the.eg.ThetallerofthetwogirlsisMary.最高级用法:1.形容词最高
7、级用于in,of或among的结构中,形容词最高级前+theegIamthebestof(among)thethree.Heisthethinnestboyinmyclass.2.副词最高级不需+theeg.Jimgoestobedlatestinmyfamily.)(单数)city2.比较级和最高级互换(比较时要把自己排除在外。注意比较的范围)eg.ShanghaiisthelargestcityinChina.ShanghaiislargerthananyotherinChina.Johnisthi
8、nnerthananyotherstudentintheclass.Johnisthinnerthanintheclass.Ex:Johnisthethinneststudentintheclass.anyone/anybodyelseShanghaiislargerthananycityinAfrica.cityIV.Others＊Alice’sdietwaslesshealthythanDanny’sdiet.(不如)(more…tha
