as...as,比较级,最高级.ppt

as.as.,比较级,最高级3.Tim is the tallest of the three.1.Lucy is as tall as a tree.2.Sally is taller than Ben.3.Tim is the tallest of the three.1.Lucy is as tall as a tree.2.Sally is taller than Ben.as.as.比较级比较级最高级最高级1.Lucy is as tall as a tree.asas 像一样两个人或事物的比较A be as as B.1.as 和as 中间要加形容词2.be 动词要随着A变化3.Chinese left等词不能用在as as中间as tall as a treeas green as grassas big as an elephantas black as a sheepas small as an antas white as snowas red as an appleas cold as iceas quiet as a mouseas happy as a bird她的脸和苹果一样红。他们像树一样高大。地面像雪一样白。它和大象一样大。They are as tall as a tree.The floor is as white as snow.It is as big as an elephant.Her face is as red as an apple.round,square,loud,strong,weak,fat,new,thin,hungry,thirsty,quick,fast,slow,hot,cold,tired,famous,different,interesting,straight,curly,dirty,clean,beautiful,pretty,big,small,angry,lovely,excitingThe clock is as round as an orange.2.Sally is taller than Ben.A+be+形容词比较级+than+B（比较对象）.两个人或事物之间进行比较。1.直接+er2.以不发音的e结尾，直接+r3.以“辅元辅”结尾，双写最后一个字母+er4.以辅音+y结尾，变y为i+er5.较长的词前+moreeasier,prettier,happier,thirstier,dirtiermore beautiful,more interestingtaller,longer,younger,fasternicer,larger,later,wider,cuterfatter,bigger,redder,thinner,sadderlong_ wide _ fat _ heavy_ slow _ happy_ exciting_different_longerwiderfatterheavierslowerhappiermore differentmore excitingYao Ming is_ _ _ _ _.taller than Liu XiangThe brown car _ _ _ _ _ _ _ _.is nicer than the red oneMark is _ _ _ _.thinner than Liu Yifei3.Tim is the tallest of the three.主语主语+Be动词动词+the+形容形容词词最高最高级级+比比较较的的范范围围 意意为为“最最”形容词最高级用于同类三个或三个以上的人或事物的比较形容词最高级用于同类三个或三个以上的人或事物的比较1.直接+est2.以不发音的e结尾，直接+st3.以“辅元辅”结尾，双写最后一个字母+est4.以辅音+y结尾，变y为i+est5.较长的词前+the mosteasiest,prettiest,happiest,thirstiest,dirtiestthe most beautiful,the most interestingtallest,longest,youngest,fastestnicest,largest,latest,widest,cutestfattest,biggest,reddest,thinnest,saddestthethethethe有些形容词比较级的变化是不规则的，需要单独记忆:many-more-the most good-better-the best bad-worse-the worst1.old _ 2.easy _3.thin _ _ 4.nice _5.slow _ _ 6.hot _一.写出下列单词的比较级和最高级。1.She is _ _ us.A.happier/as B.happier/than C.more happy/as D.more happy/than2.Jane is _ than Betty.A.taller B.tallest C.much tall D.not as tall3.-Which is_,the cat,the monkey or the elephant?-Of course,the cat is.A.small B.smaller C.smallestD.the smallest4.The Yellow River is one of _rivers in China.A long B longer C the longestBADC二.选出正确的答案。1 I think this coat is _ than that coat.(big)2 Oh,this shirt is _ than that shirt.(beautiful)3 My Maths _in my class.(good)4 Jim_mouse.(not small)biggermore beautifulthe bestnot as small as三.用所给词的适当形式填空。5.Bob is _(young)than Fred but _(tall)than him.6.Kitty is not as _(tall)as Pat.7.Which is _(heavy),a hen or a chicken?8.-How _(tall)is Sally?-She s 1.55 metres _(tall).youngertallertallthe heaviesttalltall句子结构句子结构对象对象形容词变化形容词变化相同点相同点as.as.比较级最高级都有Be动词句子里都有形容词