形容词比较级（一）英语形容词、副词比较级的构成英语形容词比较等级有三个：原级，比较级和最高级。形容词比较等级形式变化有规则的和不规则的两种。1、规则变化1）单音节词末尾加-er（比较级），-est（最高级）【例】原级比较级最高级greatgreatergreatestsmallsmallersmallestcleancleanercleanest2）单音节如以e结尾，只加-r（比较级），-st（最高级）【例】widewiderwidest3）闭音节单音节词如末尾只有一个辅音字母，须先双写这个辅音字母，再加-er（比较级），-est（最高级）【例】bigbiggerbiggesthothotterhottestredredderreddest4）少数以-y，-er，ow，-ble结尾的双音节词，末尾加-er（比较级），-est（最高级）。以-y结尾的词，如-y前是辅音字母，则变y为-i，再加-er和-est。以-e结尾的词只加-r和-st。【例】clevercleverercleverestnarrownarrowernarrowestableablerablest（不常用）easyeasiereasiest5）其它双音节和多音节词皆在前面加单词more和most。【例】carefulmorecarefulmostcarefuldifficultmoredifficultmostdifficultdeliciousmoredeliciousmostdelicious2、不规则变化原级比较级最高级good/wellbetterbestbadworseworstmany/muchmoremostlittlelessleastfarfarther/furtherfarthest/furthest（距离）（程度）注：有些形容词一般没有比较等级。如：right,wrong,woolen等。（二）形容词/副词的比较级的用法：1、原级（同级）比较：as…as…;notas(so)…as…We’llgiveyouasmuchhelpaswecan.Sheisn’tas(so)activeinsportsasbefore.2、可修饰比较级的词：much,alittle,even,far,alot,ratherHemadefewermistakesthanIdid.HeisevenricherthanI.3、不含“than”，但蕴含着比较意义。Whichislager,CanadaorAustralia?Johnisthecleverofthetwoboys.ThisT-shirtistoobigforme,couldyougivemeasmallerone?4、too…to…太…以至于…(1)too…to与so…thatsb.can’t…的句型转换：前者为简单句，主语只有一个，而后者为复合句，主语有两个，试比较：Themanwastooangrytobeabletospeak.=Themanwassoangrythathewasn’tabletospeak.Themilkwastoohottodrink.=Themilkwassohotthatwecan’tdrinkit.(2)too…to…与notenoughto句型的转换：Heistooyoungtogetmarried.=Heisnotoldenoughtogetmarried.Thebookistoodifficultformetoread.=Thebookisnoteasyenoughformetoread.5、用比较级表示倍数关系：(1)Ais…timesthesize/height/length/width(名词)ofBThenewbuildingisthreetimestheheightoftheoldone.(2)Ais…timesasbig/high/long/wide/large(形容词原级)asB（用法类似于1）AsiaisfourtimesaslargeasEurope.(3)Ais…timeslarger/higher/longer/wider(形容词比较级)thanB.Ourschoolistwicebiggerthanyours.6、用比较级表示最高级：形容词或副词比较级+than+alltheother+名词复数/anyother+名词单数。如：约翰是班里最高的男生。Johnisthetallestboyintheclass.Johnistallerthanalltheotherboys/anyotherboyintheclass.7、themore…..themore….表示“越……越……”:Themorebooksyouread,thewideryour