单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,The Use of,Yangzhen Middle School Liu Qing,The Use ofYangzhen Middle Scho,1,Good,better,best,Never let it rest.,Till good is better,And better,best.,好上加好，直到最好；,精益求精，永无止境。,Good,better,best,Never l,2,Lets read!,形容词的比较级构成,规则变化,不规则变化,Lets read!形容词的比较级构成规则变化不规则变化,3,一、形容词、副词的比较级构成的,规则变化,：,1、一般在形容词、副词后加上,er,表示比较级,原级 比较级,1）small small,2)young young,3)fast fast,er,er,er,一、形容词、副词的比较级构成的规则变化：er er,4,2、,以不发音的,e,结尾的，只加上,r,表示 比 较级。,原级 比较级,1)large large,2)nice nice,3)fine fine,r,r,r,rrr,5,3、,以,辅音字母,+y,结尾的，把,y改为i,然后加上,er,表示比较级。,原级 比较级,1）early early,2)happy happy,ier,ier,3、以辅音字母+y 结尾的，把y改为i,然后加上er表示,6,4,、重读闭音节结尾、且末尾只有一个辅音字母，,双写最后一个辅音字母,，然后加上,er,表示比较级。,原级 比较级,1）big big,2)thin thin,3)wet wet,4)fat fat,5)hot hot,ger,ner,ter,ter,ter,4、重读闭音节结尾、且末尾只有一个辅音字母，双写最后一个,7,5,部分,双音节和多音节的形容词，副词，在这些形容词和副词,前加上,more,表示比较级。,原级 比较级,1)expensive expensive,2)careful careful,3)exciting,exciting,4)boring boring,5)interesting,interesting,6)carefully,carefully,more,more,more,more,more,more,5 部分双音节和多音节的形容词，副词，在这些形容词和副词,8,二、形容词和副词比较级的不规则变化,原级,good,well,bad(ly),ill,many,much,little,far,old,比较级,说明,巧记：,特殊形式比较级,共有三对二合一,坏病两多,并,两好,little意思不是小,一分为二有两个,一是,老,来二是,远,better,worse,less,more,farther,further,older,elder,二、形容词和副词比较级的不规则变化原级比较级说明better,9,三、部分形容词和副词的比较级的特殊情况：,1、某些单音节形容词，加more 构成比较级。,glad more glad,pleased more pleased,tired more tired,三、部分形容词和副词的比较级的特殊情况：1、某些单音节形容词,10,2、有些双音节和单音节形容词，既可以加er构成比较级，也可以加more 构成比较级。,friendly,friendier more friendly,huge,huger more huge,calm,calmer more calm,true,truer more true,clever,cleverer more clever,2、有些双音节和单音节形容词，既可以加er构成比较级，也可以,11,important,easy wet,happy,careful,thin,good,hot,easily,many,big,heavy,delicious,练习：写出下列词的比较级,more important,easier,wetter,happier,more careful,thinner,better,hotter,more easily,more,bigger,heavier,more delicious,important,12,形容词的比较级,一：,用法,用于两者（人或物）之间，表示“其中一个比另一更”或“较”，后面,通常,用连词,than,连结另一个比较的对象，其基本句型是：,主语谓语（系动词/行为动词）形容词比较级（+其它）,than,对比对象。,eg:,形容词的比较级一：用法,13,Which country is larger?,U.S.A,Australia,USA is,larger than,Australia.,Which country is larger?U.S.AA,14,The,Y,ellow River,Which river is longer?,The Changjian River,The Changjiang River is,longer than,the Yellow River.,The Yellow RiverWhich river is,15,Linda has,longer,hair,than lucy.,Lucy,Linda,Linda has longer hair than luc,16,（3）“比较级+and+比较级”表示,“越来越”,eg:In spring,the days are getting,longer and longer,.,春天，日子越来越长了。,She is,more and more athletic.,她越来越健壮了。,than,后面接代词时，一般要用主格，但在口语中也可以换成宾格。,eg:He is good at math than,I(me).,他比我更擅长数学。,（3）“比较级+and+比较级”表示than 后面接代词时,17,（4）“The+比较级，the+比较级”表示“越，就越”,eg：The busier he is,the happier he feels.,他越忙就越高兴。,（,5）形容词比,较级前可加数词,，表示“大（小）多少”“长（短）多少”,eg:He is,five years younger,than me.,他比我小五岁,。,（,6）表示倍数时用:“times（倍，倍数）+比较级+than”或“times as+原级+as”,eg:My room is,three times,bigger than yours.,我的房间比你的大三倍。,My room is four times as big as yours.,我的房间是你的四倍。,（4）“The+比较级，the+比较级”表示“越，,18,(8),、,用比较级形式表示最高级的意思:,比较级+than any other+,单数,eg:He is,taller than any other boy,in his class.,(8)、用比较级形式表示最高级的意思:,19,vegetables,pizza,Which is more delicious,vegetables or pizza,?,(9)表示两者之间的选择，,可使用,“Which who is+比较级，or?”,vegetablespizzaWhich is more d,20,Who is more popular,Beckham or Zhao Benshan,?,Beckham,Zhao Benshan,Who is more popular,Beckham or,21,(10)形容词原级的常用句型,Tom is as,tall,as Mike.,汤姆和迈克一样高。,as+形容词原形+as,There are as,many students,in our class as yours.,我们班有和你们班一样多的学生。,Tom is as,old,as Mike.,汤姆和迈克一样大。,(10)形容词原级的常用句型Tom is as tall a,22,否定 not as+形容词原形+as,“和 不一样”,或 not so+形容词原形+as,“不及不如,Lucy is,not as,tall,as,Mike.,Lucy is,not so,tall,as,Mike.,露西没有迈克那样高。,否定 not as+形容词原形+as Lucy,23,二.原级和比较级前面通常使用的修饰词：,（一）在原级前面通常使用very,quite,too,much too,a little,as,so 等。,eg:1.The room is,very,big.,2.The person is,quite,clever.,3.Today is,too,hot.,4.He eats too much,so hes,much too,heavy.,5.He is,a little,angry.,二.原级和比较级前面通常使用的修饰词：,24,（二）在比较级前面使用的修饰词有：,even（更，更加），a little（有点），,far/much/a lot（更加，的多）,eg:1.Yesterday was,hot,but today is,even,hotter,.,2.Im,a little,taller,than Mary.,3.This skirt is,far/much/a lot,more beautiful,than,that one.,（二）在比较级前面使用的修饰词有：,25,Follow ups,(,随堂练习,),1、The Changjiang River is _ than any other river in China.,A.shorter B.longer C.shortest D.longest,2、Bob never does his homework _ Mary.He makes lots of mistakes.,A.so careful B.as carefully as,C.carefully as D.as careful as,3、_ she is,_ she feels.,A.The more busy,the more happy B.The busy,the happy,C.Busier,happier D.The busier,the happier,4、The weather is getting c_ a_ c_,.(,越来越冷,),B,B,D D,older nd older,Follow ups(随堂练习)1、The Changjia,26,6.In our city its,in July,but it is even _in August.,A.hotter;hottest B.hot;hot,C.hotter;hot D.hot;hotter,7.An elephant is,than a tiger.,A.Heavy B.very heavy,C.the heaviest D.heavier,8.Which subject is _,physics or chemistry?,A.interesting B.most interesting,C.more interesting D.the most interesting,C,D,D,5.The bread is _ than these cakes,A.very delicious B.much delicious,C.more delicious D.as delicious,C,6.In our city its in,27,Thank you for listening!,Thank you for listening!,28,