小学英语比较级完整ppt课件

.,1,Unit3,Lesson11,.,2,写出下列单词的比较级和最高级,bigtallnicegoodlongeasyyounghot,biggerbiggesttallertallestnicernicestbetterbestlongerlongesteasiereasiestyoungeryoungesthotterhottest,.,3,.,4,形容词/副词比较级变化规则,一般在词尾加-er,tallerlongerolder,以字母e结尾，直接加-r,largernicer,以重读闭音节结尾的，如末尾只有一个辅音字母，应先双写该字母，再加-er,thinnerbiggerhotterredder,以“辅音字母+-y”结尾的，先把y变成i，再加-er,angriereasierbusier,.,5,形容词的比较级。1.单音节词在词尾加-er构成比较级原级比较级brightbrighteryoungyoungerlonglonger,.,6,Thedogisbiggerthanthemouse.,Thehorseisthebiggestofall.,Theboyisyoungerthantheman.,Thebabyistheyoungestofthethree.,big,bigger,biggest,youngyounger,youngest,.,7,Jim,LiLei,Tom,LiLeiistallerthanTom.,Jimisthetallestofall.,￥30,￥20,￥10,Theyellowcoatischeaperthanthepurpleone.,Thebrowncoatisthecheapestofthethree.,.,8,Thedogisbiggerthanthemouse,Theboyisyoungerthantheman.,LiLeiistallerthanTom.,Theyellowcoatischeaperthanthepurpleone.,Conclusion,A+be+比较级+than+B,形容词比较级句式的结构：,.,9,Conclusion,Thehorseisthebiggestofall.Thebabyistheyoungestofthethree.Thebrowncoatisthecheapest.Jimisthetallestinourclass.,主语+be+the+最高级+of/in.,形容词最高级句式的结构：,.,10,￥30,￥20,￥10,Tom,LiLei,Jim,youngcheaptall,.,11,pumpkin南瓜,WhydoesLucywanttobuyapumpkin?,Lucy,.,12,Jimisstrong.LiLeiis.Tomis.,stronger,thestrongest,Exercise,.,13,Thebluecarisnice.Theredcartheblu