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1、比较级和最高级的用法1规则变化1)一般情况下，单音节或双音节的形容词/副词比较级＋er，最高级＋est。如:clever—cleverer—cleverestfew—fewer—fewestsmall—smaller—smallest等。形容词、副词的比较级和最高级规则变化和不规则变化22)以e结尾的词，比较级＋r，最高级＋st即可。如：nice—nicer—nicestcute—cuter—cutestlarge—larger—largest3)以辅音字母＋y结尾的变y为i＋er或est如:easy—easier—eas
2、iesthappy—happier—happiest再如：early,busy,heavy,dirty,lazy也如此。34)重读闭音节，单辅音结尾的词，双写这个辅音字母＋er或est：①fat—fatter—fattest②thin—thinner—thinnest③hot—hotter—hottest④red—redder—reddest⑤wet—wetter—wettest⑥big—bigger—biggestzx。xk45)加more,most构成比较级和最高级。【1】多音节的形容词和副词expensive-mor
3、e expensive-most expensivecarefully-more carefully-most carefully【2】由形容词加-ly构成的副词slowly-more slowly-most slowlyhighly-more highly-most highly5【3】以-ful,-less,-able,-ous,-ive,-ing等结尾的双音节形容词useless-more useless-most uselessserious-more serious-most seriuos【4】分词形容词tir
4、ed,pleasedglad,often,real,right,wrong等单音节形容词tired-more tired-most tiredglad-more glad-most glad6b)不规则变化：good—better—bestwell—better—bestbad—worse—worstmany/much—more—mostfar—farther—farthest(距离远)far—further—furthest(程度深)old—elder—eldest(长幼)old—older—oldest(年龄)7原级比
5、较8表示两者之间没有差别时,使用原级比较：主语A+谓语动词+as+形容词/副词原级+as+B+….如：Heisasexcitedashisyoungersister.他和他妹妹一样兴奋。Lilyrodeherbikeasslowlyasanoldlady.莉莉骑车像老太太一样慢。Theypickedasmanyapplesasthefarmers.他们摘的苹果和农民一样多。9表示第一个人比不上第二个人时,使用句型:主语A+谓语动词(否定式)+as/so+形容词/副词原级+as+BHe isnot so / as excit
6、ed ashis younger sister.他没他妹妹那么兴奋。Lily didnotride her bikeso / as slowly asanold lady.莉莉骑车不像老太太那样慢。They didn’tpickso / as many apples asthefarmers (did).他们摘的苹果不如农民多。10比较级用法111.比较级表示两者(人或事物)的比较。eg.IamtallerthanTom.Mydressismorebeautifulthanhers.2.“比较级＋and＋比较级”意为“越来
7、越……”。多音节比较级用“moreandmore＋形容词原级”形式。如：It’sgettingworseandworse.Thegroupbecamemoreandmorepopular.123.“Which/Whois+比较级…？”比较A、B两事物,问其中哪一个较……时用此句型。如：WhichT-shirtisnicer,thisoneorthatone?Whoismoreactive,MaryorKate?Whichoneismorepopularamongstudents,goingtoconcertsorgoing
8、tomovies?134.使用形容词比较级时需注意以下几点：1)than后面接代词时,一般要用主格形式，但在口语中也可使用宾格形式。如：MybrotheristallerthanI/me.2)当需要表示一方超过另一方的程度时，可以用much,alot,alittle,abit,even,still等来修
