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1、大多数形容词和副词有三个等级：原级、比较级、最高级。一、构成1.构成的不规则变化:eg.good/well–better–bestbad/badly–worse–worstmany/much–more–mostlittle–less–leastfar–farther/further–farthest/furthestGrammar:形容词和副词的比较级和最高级2.构成的规则变化:(1)单音节词和少数双音节词一般在词尾后加-er或-est.如：cold–colder–coldestnice—nicer–nicest(2)重读闭音节词末尾只有一个辅音字母时
2、,先双写这个辅音字母,再加-er或-est。如:big–bigger–biggestthin–thinner–thinnest(3)以“辅音字母+y”结尾的双音节词，先改y为i,再加-er或-est。如：easy–easier–easiesthappy–happier–happiest(4)多音节词和部分双音节词在词前加more或most。如：delicious–moredelicious–mostdeliciousinteresting–moreinteresting–mostinteresting二、用法1.比较级表示两者(人或事物)的比较。eg.
3、IamtallerthanTom.Mydressismorebeautifulthanhers.2.最高级表示三者或三者以上(人或事物)的比较,其中有一个在某一方面超过其他几个时,用最高级。最高级的前面一般要加定冠词the,后面可带of(in)短语来说明比较的范围。如：Sheistheyoungestintheclass.Jasonisthetallestofthethree.Whosehandwritingisthebestofall?3.在形容词比较级前还可用much,even,still,alittle来修饰,表示“……的多”,“甚至……”,“更
4、……”,“……一些”。如：Thiscityismuchmorebeautifulthanbefore.She’salittlemoreoutgoingthanme.It’salittlecoldertoday.4.“比较级＋and＋比较级”意为“越来越……”。多音节比较级用“moreandmore＋形容词原级”形式。如：It’sgettingworseandworse.Thegroupbecamemoreandmorepopular.5.“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-shirti
5、snicer,thisoneorthatone?Whoismoreactive,MaryorKate?Whichoneismorepopularamongstudents,goingtoconcertsorgoingtomovies?Greg:Hi,I’mGreg.I’mnewintown.Helen:Hi,I’mHelen.Welcometotheneighborhood!Howdoyoulikeitsofar?Greg:It’sfantastic,butIstilldon’treallyknowmywayaround.Helen:Well,theb
6、estsupermarketisonCenterStreet.Youcanbuythefreshestfoodthere.Greg:Oh,great.Isthereacinemaaroundhere?Ilovewatchingmovies.Helen:Yes,SunCinemaisthenewestone.Youcansitthemostcomfortablybecausetheyhavethebiggestseats.Greg:Thanksfortellingme.Helen:Noproblem.2d.Role-playtheconversation
7、.Read2dandanswerthequestions.IsGregnewintown?Whereisthebestsupermarket?Whatcanyoubuythere?Whichcinemaisthenewest?WhatdoesHelenthinkofit?Yes,heis.It’sonCenterStreet.Youcanbuythefreshestfoodthere.SunCinemaisthenewest.Youcansitthemostcomfortablybecausetheyhavethebiggestseats.3a.Fil
8、lintheblankswiththecorrectformsofthewordsinbrac
