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1、Unit7What'sthehighestmountainintheworld?SectionA1a-1clatelater-latestearlyearlier–earliestbigbigger-biggestfluently/difficultmore～,most～重读闭音节、末尾只有一个辅音字母双写加–er或–est单音节词在词尾比较级加-er或最高级加-est以e结尾的词，只需加－r或－st以辅音字母加y结尾双音节词变y为i加–er或–est部分双音节和多音节词在原级前加more或mosttalltaller-tallestcheap,col
2、d,small,warm,young,highfine,nice,safehappy,busy,dirty,easy,lazy,prettyfat,hot,red,thin,wet,sadquickly,slowly,useful,careful,popular,modern,形容词和副词比较级和最高级构成(规则变化)不规则变化good/well–better-bestmuch/many–more-mostbad/badly/ill–worse–worstlittle–less–leastfar–farther/further–farthest–fur
3、thestold–older/elder–oldest/eldest1.表示两者之间的选择,可用“Which/Who…+比较，…or…?”.2.表示两者之间的比较，通常用连词than引导，表示“更······一些”．3.much/far/alot,even,still,alittle/abit…修饰比较级,表示程度.Whorunsfaster,heorshe?Herunsfasterthanshe.Herunsmuchfasterthanshe.4.“比较级+and+比较级”表示“越来越……”5.“the+比较级,the+比较级”表示“越…,越…”6.
4、表示不及另一方时，用“less+原级+than…”(双音节和多音节词)Hebecomeshealthierandhealthier.Themoreyouexercise,thehealthieryouwillbe.Sheislesshealthythanhe.Heishealthierthanshe.Shanghaiisbecomingmoreandmoremodern.1.比较级+and+比较级越来越…2.the+比较级,the+比较级 越…,越…3._______________youare,_________mistakesyouwillmake
5、.(你越仔细，做错的题目就越少）4.__________youeat,_________you’llbe.(你吃得越多,就越胖)5.Alicewriteswell.Marywrites_________________thanshe.(甚至更好）ThemorecarefulthefewerThemorethefatter1.Thegirlbecomes______________________.(越来越漂亮）moreandmorebeautiful2.Theweatherisgetting_________________.(越来越槽糕）worsea
6、ndworseeven/stillbetter1.表示三者或三者以上比较,可用”Which/Who…+最高级,…,…or…?”表示.2.最高级+of/among(同类比较)in…(范围比较)4.oneof+形容词最高级+名词复数表示“最…之一”3.序数词修饰最高级形容词和副词的最高级的用法Whoisthetallest,Tom,Mike,orJack?Tomisthetallestofthethree.Mikeisthesecondtalleststudentinourclass.Jackisoneofthetalleststudentsinourcl
7、ass.Tomruns(the)fastestinourclass.Let’senjoythenaturalbeautyofChina.YangtzeRiverQinghaiLakesaltlakelongestbiggestTheYangtzeRiveristhelongestriverinChina.theHimalayasTheHimalayasisthehighestmountainrangeintheworld.theCaspianSeasaltlakebiggestTheCaspianSeaisthebiggestlakeintheworl
8、d.1,025metersdeepLet’senjoythenaturalbeautyofCh
