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1、Unit4What’sthebestmovietheater?SelfCheckyoung-yonger-yongestold–older-oldestearly-earlier-earliestthirsty-thirstier-thirstiest1.一般情况下加-er或－est:2.以字母e结尾的形容词，加-r或-st4.以 “辅音字母＋y”结尾的双音节词，先改“y”为“i”，再加-er或-est.big—bigger-biggestfat—fatter-fattestnice–nicer-nicestsafe–safer-safest
2、3.重读闭音节词只有一个辅音字母时，应先双写辅音字母，再加-er或-est.Revision一、形容词比较级和最高级的变化规则5.部分双音节词或多音节词前面加more,most.如:interestingmoreinterestingmostinterestingfamousmorefamousmostfamous不规则变化原级比较级最高级good/wellbetterbestbad/illworseworstmany/muchmoremostlittlelessleastfaroldolderelderoldesteldestfarther
3、furtherfarthestfurthest两多、两坏、两多、一少、一老、一远.Readandcompare:younglongfullshortsmalloldfineeasyhungryearlyheavybigredyoungeryoungestlongerlongestfullerfullestshortershortestsmallersmallestolderoldestfinerfinesteasiereasiesthungrierhungriestearlierearliestheavierheaviestbiggerbig
4、gestredderreddesthealthymanyfamousillexcitingcarefullywethotlittlefewhealthierhealthiestmoremostmorefamousmostfamousworseworstmoreexcitingmostexcitingmorecarefullymostcarefullywetterwettesthotterhottestlessleastfewerfewest二.比较级、最高级的用法1.原级:可用very,quite,so,too,等词修饰.e.gJimisve
5、rytall.2.比较级:可用much,many,alot,alittle,abit等修饰.其主要句型有：⑴比较级+thane.gMaryismuchyoungerthanSue.⑵疑问句+动词+比较级,AorB?e.gWhodrawsbetter,TomorJim?⑶Which…likebetter,AorB?e.gWhichdoyoulikebetter,mathsorEnglish?⑷比较级+and+比较级，表示越来越…e.gthedaysaregettingshorterandshorter.⑸the+比较级,the+比较级,表示越…
6、越…e.ghesays,”thebusier,thebetter.”3.最高级:形容词的最高级要加定冠词the,副词最高级可省略the,主要句型有:⑴the+最高级+ofinJimworkshardestofusall.Mymotheristhebusiestinmyfamilye.g⑵疑问词+动词+最高级⑶which…likebest,A,BorC?练习:Fillintheblankswiththeproperformofthewordsgiven.Mysisteris______thanRichard.(old)Hehas_______b
7、ooksthanI.(much)Isfootball____________thanvolleyball?(exciting)Thetownis________thanitusedtobe.(clean)He’s________thanhisbrother,Jim.(clever)Ithinkshelooks_________thaninthephoto.(pretty)oldermoremoreexcitingcleanerclevererprettier7.Thetigeris________________thanthelion.(da
8、ngerous)8.Englishis________________thanIthought.(important)9.Hisgrandmacanwalk____
