形容词的比较级及最高级1:单音节词，在词尾加er构成比较级，加est构成最高级。构成比较级，构成最高级。单音节词tall--taller--tallestkind-kinder-kindesttall-taller-tallestgreat--greater--greatestslow-slower-slowestcold-colder-coldestlong—longer—longestquick-quicker-quickestdear-dearer-dearersmall—smaller—smallestcheap-cheaper-cheapestwarm-warmer-warmestshort—shorter—shortestcalm-calmer-calmestwild-wilder-wildestnew—newer—newestold—older—oldestquiet-quieter-quietestweak—weaker—weakestsrong-stronger-strongestnear-nearer-nearestclean—cleaner—cleanestdull-duller-dullestloud-louder-loudestlow—lower—lowesthigh-higher-highestrich-richer-richestpoor-poorer-poorestbright--brighter—brightestclever-cleverer-cleverestdark-darker-darkestsmart-smarter-smartestpoor-poorer-poorestexcited-exciteder-excitedestcool-cooler-coolestclear-clearer-clearestfew-fewer-fewest2:以不发音的e结尾,直接在词的后面加r构成比较级,加st构成最高级nice--nicer--nicestfree-freer-freestsafe-safer-safestfine—finer—finestlarge–larger--largestclose-closer-closestwide-wider-widestcute—cuter—cutestwhite—whiter—whitestlate—later—latest3:重读闭音节词,双写结尾的ㄒ糇帜?再加er构成比较级，加est构成最高级。hot–hotter—hottestfit-fitter-fittestbig—bigger—biggestfat—fatter—fattestthin—thinner—thinnestfun-funner-funnest4:以辅音字母+y的词,去y加er构成比较级，加est构成最高级。easy--easier–easiestdirty-dirtier-dirtiestangry-angrier-angriestbusy–busier--busiestlucky-luckier-luckiestcloudly-cloudier-cloudiestugly—uglier—ugliestfunny-funnier-funniestwindy-windier-windiestheavy—heavier—heaviestearly-earlier-earliestsunny-sunnier-sunniesthappy—happier—happiestunhappy-unhappier-unhappiesthungry—hungrier—hungriestfriendly-friendlier-friendliest(unfriendly)sorry—sorrier—sorriestcurly-curlier-curliestrainy-rainier-rainiesthealthy-healthier-healthiestunhealthy-unhealthier-unhealthiestpretty—prettier—prettiesttrendy-trendier-trendiestshy-shier-shiesttidy—tidier—tidiestmessy—messier—messiestlazy-lazier-laziestthirsty-thirstier-thirstiestnoisy-noisier-noisiest5：双音节词多音节词在前加more构成比较级，加most构成最高级。fantastic—morefantastic—mostfantastic1beautiful--morebeautiful--mostbea