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形容词、副词得比较级与最高级得构成与用法。(一)比较级与最高级得构成:1加-er,-est构成比较级与最高级。【1】单音节形容词与副词high-higher-highesthard-harder-hardest【2】以不发音得-e结尾得safe-safer-safestlate-later-latest【3】辅音字母要双写得情况:big-bigger-biggesthot-hotter-hottest【4】以辅音加-y结尾得情况dry-drier-driestmerry-merrier-merrist2加more,most构成比较级与最高级。【1】多音节得形容词与副词expensive-moreexpensive-mostexpensivecarefully-morecarefully-mostcarefully【2】由形容词加-ly构成得副词slowly-moreslowly-mostslowlyhighly-morehighly-mosthighly【3】以-ful,-less,-able,-ous,-ive,-ing等结尾得双音节形容词useless-moreuseless-mostuselessserious-moreserious-mostseriuos【4】分词形容词tired,pleased及glad,often,real,right,wrong等单音节形容词tired-moretired-mosttiredglad-moreglad-mostglad(3)形容词、副词得比较级与最高级得不规则构成法。good/well-better-bestbad/ill/badly-worse-worstmany/much-more-mostlittle-less-leastfar-farther/further-farthest/furthestold-older/elder-oldest/eldest(二)比较级与最高级得用法1比较级得表示法:主语+be+比较级+than…;主语+谓语+比较级+than…(1)不同主语得比较:HeistwoyearsyoungerthanI、Thismachineworksbetterthanthatone、LiMingstudiesharderthanWangLing、(2)同一主语不同方面得比较:Sheisnowhappierthanshehaseverbeen、Theexamwaseasierthanweexpected、Wehavehadmuchmorerainthisyearthanlastyear、(3)用于修饰比较级得词:even,(very)much,far,alot,stillThisbookismuchthickerthanthatone、Heworksevenharderthanbefore、2最高级得用法以及most/mostly/almost/atmost得含义(1)形容词与副词最高级得用法三者或三者以上得比较用最高级。表示最高程度时,用“the+最高级”得结构表示。最高级中表示比较范围得常用among,in,of引导得介词短语或从句表示。Yesterdaywasthehottestdayoftheyear、Heworks(the)hardestinhisclass、Shanghaiisamongthelargestcitiesintheworld、Thisisthetallestbuildinginourschool、Ofallthebooks,thisisthemostusefuloneforusstudents、ItisthebiggestzooI’veevervisited、(2)修饰最高级得词最高级可以用序数词以及much,byfar,nearly,almost修饰TheYellowRiveristhesecondlongestinChina、OfthethreeboysJackisalmostthecleverest、(3)可以不加冠词得情况作状语得副词最高级前可以不加定冠词Ofalltheboyshecame(the)earliest、Ilikespringbest、(4)most,mostly,almost,atmost得用法Amost作副词,构成形容词与副词得最高级most作副词,构成大多数双音节或多音节形容词与副词得最高级形式,前面常有定冠词。Whichdoyouthinkisthemostfortablehotelinthistown?Bmost作副词,修饰形容词与副词,用来加强语气,表示“极”“十分”,前面不用定