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1、Unit3I’mmoreoutgoing thanmysister.SectionALiuXiangistall.PanChangjiangisshort.LiuXiangistallerthanPanChangjiang.PanChangjiangisshorterthanLiuXiangtallershorter比较级than比Thepurplerulerislong.Thebluerulerisshort.Thepurplerulerislongerthantheblueruler.Thebluerulerisshorterthanthep
2、urpleruler.Theredboxislarge.Thegreenboxissmall.Theredboxislargerthanthegreenbox.Thegreenboxissmallerthattheredbox.LinXinruisthin.LiuYifeiisthinner.LiuYifeiisthinnerthanLinXinru.45kg48kgThewomenareheavy.Themanandthewomanarethin.Thewomenareheavierthanthemanandthewoman.LiYongism
3、oreoutgoingthanChenglong.ChengLongisoutgoing.LiYongismoreoutgoing.形容词和副词的比较级和最高级。大多数形容词和副词有三个等级：原级、比较级、最高级。构成:GrammarFocus一、规则变化1.单音节和少数双音节单词，一般在词尾加“er”。clean,tall,small,cheap,short,long,light,high2.以不发音字母“e”结尾的单词，直接在词尾加“r”。nice,late,close,fine,large,free,rude3.以重读闭音节结尾的单词，如果
4、词尾只有一个辅音字母时，应先双写这一辅音字母，再加“er”。fat,big,red,thin,hot,fat,sad,wet以辅音字母+y结尾的单词，应先改“y”为“i”，在加“er”。happy,easy,heavy,healthy,busy,lucky,pretty,sunny,funny5、其他双音节单词和多音节单词，都在其前面加“more”。(beautiful,interesting)不规则形容词副词goodwellbetterbestbadbadlyworseworsemanymuchmoremostlitterlessleas
5、tfarfartherfarthestfurtherfurthest用法:一、比较级表示两者(人或事物)的比较。eg.IamtallerthanTom.Mydressismorebeautifulthanhers.二、原级as…as…用法:1.as+adj/adv.的原级+as(肯,否),(not)so…as(否)eg.Therulerisaslongasthatone.HesingsaswellasJack.Hedoesn’tsingas(so)wellasJack.2.asmuchas,asmanyas与…一样多eg.Ihavedoneasm
6、uchworkashedidyesterday.Youcantakeasmanybooksasyoucan.GaoYuanyuanisas________(漂亮)asSunLi.SunLiworksas_____(努力)asGaoYuanyuan.hardbeautifulas…as…同级比较,两个“as”之间必须使用形容词或副词原级。意为“如同……一样……”,notas/so…as“不如……一样……”3）as表示同级比较用法tallrunfastfunnyTinaisastallasTara.TinarunsasfastasTara.Tinai
7、sasfunnyasTara.Readandcompare:younglongfullshortsmalloldfineeasyhungryearlyheavybigredyoungeryoungestlongerlongestfullerfullestshortershortestsmallersmallestolderoldestfinerfinesteasiereasiesthungrierhungriestearlierearliestheavierheaviestbiggerbiggestredderreddesthealthymany
8、illexcitingcarefullywethotlittlefewhealthierhealthiestmoremostworsew
