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1、Unit1Howtallareyou?,绿色圃中小学教育网,绿色圃中小学教育网,tall,taller,old,older,small,smaller,绿色圃中小学教育网,绿色圃中小学教育网,young,younger,strong,stronger,short,shorter,绿色圃中小学教育网,绿色圃中小学教育网,long,longer,big,bigger,Lookatthepicturesandunderstand看图并理解,A,B,绿色圃中小学教育网,绿色圃中小学教育网,thin,thinner,heavy,heavier,形容词比较级,大多数形容词和副词有三个等级：原级,即原形比较
2、级,表示“较”；“更”,Grammar,形容词和副词的比较级,最高级，表示“最,构成的规则变化:1.一般在词尾加ereg.coldcolderoldolder,一、形容词的比较级变化形式,tall-_7.small-_2.short-_8.cool-_3.strong-_9.cold-_4.old-_10.warm-_5.young-_11.deep-_6.long-_12.light-_,taller,shorter,stronger,older,younger,longer,smaller,cooler,colder,warmer,deeper,lighter,2.重读闭音节词末尾只有一个
3、辅音字母时,先双写这个辅音字母,再加-er.bigbiggerthinthinner3.以“辅音字母+y”结尾的双音节词，先改y为i,再加-er。easyeasierhappyhappier,重读闭音节双写的练习,big-_thin-_fat-_hot-_wet-_sad-_,bigger,thinner,fatter,hotter,wetter,sadder,以前学的ing格式也遵守重读闭音节要双写的原则。如run-running，swim-swimming。,去y为i+er的练习,heavy-_funny-_happy-_,heavier,funnier,happier,以前学习名词的复数
4、和单三形式时，格式也遵守不发音的y要去y为i+es的原则。如butterfliesfly-flies,4.多音节词和部分双音节词在词前加more。eg.deliciousmoredeliciousinterestingmoreinterestingserious-moreserious,多音节比较级的练习,多音节是指大于等于3个音节的单词。前面+more（更加），表示更加怎么样。beautifulmorebeautifulexcitedmoreexcited,构成的不规则变化:eg.good/wellbetterbad/badlyworsemany/muchmorelittlelessfarf
5、arther/further,以不发音的e结尾,不发音的e结尾，或者指单个e结尾的，不包括发音的e和字母组合。large-_nice-_fine-_,larger,nicer,finer,综合练习,tallfunnylargebigbeautifulgood,taller,funnier,larger,bigger,morebeautiful,better,1.表示两者(人或事物)的比较。eg.IamtallerthanTom.Mydressismorebeautifulthanhers.,二、形容词的比较级的用法,ZengZhiweiisshort.,PangChangjianis,Pang
6、ChangjianisZengZhiwei.,shorter.,shorterthan,than比,Jordanistall.,YaoMingistaller.,Jordan,2.26m,1.98m,YaoMingistallerthanjordan.,LiuHuanisold.,FeiMaois,FeiMaoisLiuHuan.,80岁,90岁,older.,olderthan,LinXinruisyoung.,LiuYifeiis,LiuYifeiisLinXinru.,18岁,28岁,younger.,youngerthan,Thebluerulerislong.,Theredruler
7、islonger,Theredrulerislongerthantheblueruler.,fast,faster,Lookatthepicturesandunderstand看图并理解,填空题比较级填空,1.Ais10yearsold,Bis11yearsold.Ais_thanB.Tomis160cm,Lucyis170cm.Lucyis_thanTom.Theelephantis893kg,thepigis158kg.Theelephantis_thanthepig.,younger,taller,heavier,填空题计算,1.Ais23yearsold,Bis4yearsoldert
8、hanA.Bis_yearsold.2.Lucyis159cm,Aliceis16cmshorterthanLucy,Aliceis_cm.3.Amyis43kg,Zhangpengis23kgheavierthanAmy,Zhangpengis_kg.,(23+4=27)27,(159-16=143)143,(43+23=66)66,我们已经初步学了比较级的运用，那么在生活中我们如何让运用比较级呢?,问年龄：Howoldareyou?问身高：Howtallareyou?问体重Howheavyareyou?问长短：Howlongisyourleg?问大小：Howbigareyourhands?
9、,Howoldareyou?Im20yearsold.Howtallareyou?Im150centimeters（tall）.sent,mi:tzIm1.50meters（tall）.pointHowheavyareyou?Im46kilograms.kilgrm,1.Jimsbagis_thanKates.A.biggerB.bigC.biggestD.thebigger2.Myshoesarecheaperthan_.A.youB.yourC.yoursD.yourone,Self-check,I.Multiplechoices,4.Thisclassroomis_thanthatone
10、.A.manybigB.muchbigC.manybiggerD.muchbigger,连词成句,shorterYouyouraresisterthan2yearsolderShesmethanheavyyouHowarebigHowfeetareyourHowistallLucyIyoustrongeramthanmeyouAreshorterthan,LetstalkLetstalk,dansdinosaur恐龙,hlhall大厅mitmeter米bboth两个都,Letstalkwhatsizeareyourshoes?Size7,Readandwrite,Countrysidekntrsad乡村Lowerl更低Shadowd影子Smartersm:t更聪明becomebkm成为,