一、形容词、副词的比较级和最高级的构成规则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－smallestyoung－younger－youngesttall－taller－tallestlong－longerlongestshort－shorter－shorteststrong－stronger－strongestwarm－warmer－warmestslow－slower－slowestold－older－oldesthigh－higher－highestlight－lighter－lightestfast－faster－fastestgreat—greater—greatestcool－cooler－coolestclean－cleaner－cleanestcheap－cheaper－cheapestquick－quicker－quickestdear---dearer---dearest2、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；nice－nicer－nicestlate－later－latestable－abler－ablestbrave－braver－bravest(勇敢的)cute－cuter－cutestlarge－larger－largestclose－closer－closest（亲密的）fine－finer－finestwhite－whiter－whitestfree－freer－freest(免费的)3、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－easiesthappy－happier－happiestearly－earlier－earliestbusy－busier－busiestheavy－heavier－heaviestdirty－dirtier－dirtiestlazy－lazier－laziestdry－drier－driestpretty－prettier－prettiestfunny－funnier－funniest4、在重读闭音节（即：辅音＋元音＋辅音）中，先双写末尾的辅音字母，比较级加-er，最高级加-est；fat－fatter－fattestthin－thinner－thinnesthot－hotter－hottestfit－fitter－fittest(合适的)red－redder－reddestwet－wetter－wettestbig－bigger－biggestsad－sadder－saddest5、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－mostbeautifulcareful－morecareful－mostcarefulintelligent－moreintelligent－mostintelligentfriendly－morefriendly－mostfriendlyexpensivedelicious（美味的）popular（流行的）important（重要的）interesting（有趣的）afraid（害怕）quickly（迅速地的）quietly(安静地)dangerous(危险的)6、少数单音节词也是这样；pleased－morepleased－mostpleasedtired－moretired－mosttired7、少数不规则形容词、副词的比较级和最高级,必须熟记。good/well—better—bestlittle—less—leastbad/ill/badly—worse—worstold—older/elder—oldest/eldestmany/much—more—mostfar—further/farther—furthest（表示程度）/farthest（表示距离）
