The comparatives and superlatives of adverbs,形容词、副词的等级构成,其他双音节词和多音节词, 在前面加more, the most来构成比较级和最高级。 e.g.,1. comfortable more comfortable the most comfortable 2. beautifully more beautifully the most beautifully,不规则变化,知识拓展,比较级的用法,比较级/最高级中一些特殊的用法,The sooner, the better. The days are getting shorter and shorter after September. John is the taller of the two boys. He is taller than any other student in the school .,1. “the more , the more”结构,它的确切形式为: “ The + 比较级 , the + 比较级 ”, 表示“ 越 , 越”。 例：,In fact, the_ (busy) he is, the_ (happy) he feels.,The _(many) you listen to English, the _ (easy) it becomes.,busier,happier,more,easier,1. 可以修饰比较级的词: much, a lot, far(的多), a little, a bit(一点儿), even(甚至), still(仍然)。 e.g. Lesson One is much easier than Lesson Two. 第一课比第二课容易得多。,比较级的用法,2. 比较级常用的句型结构 (1)“甲+be+(倍数)+形容词比较级+than+乙” 表示: “甲比乙”或“甲比乙几倍”。 e.g. Tom is taller than Kate. 汤姆比凯特高。 This room is three times bigger than that one. 这个房间比那个大三倍。,(2)“甲+be+形容词比较级+than+ any other +单数名词(+介词短语)” 表示: “甲比同一范围的任何一个人/物都”, 含义是“甲最”。 e.g. The Yangtze River is longer than any other river in China. =The Yangtze River is longer than any of the other rivers in China.,“甲+be+ the+形容词比较级+of the two+” 表示：“甲是两者中较的”。 e.g. Look at the two boys. My brother is the taller of the two. 看那两个男孩, 我弟弟是两个当中较高的那个。,(4) “比较级+and+比较级” 表示: “越来越”。 e.g. He is getting taller and taller. 他变得越来越高了。 The flowers are more and more beautiful. 花儿越来越漂亮。 He does his homework more and more carefully. 他做作业越来越认真了。,(5) “the+比较级, the+比较级” 表示: “越, 越”。 e.g. The more careful you are, the fewer mistakes youll make. 你越认真, 犯的错误越少。,(6) “特殊疑问词+be+形容词比较级, 甲or乙?” 表示: “甲和乙中, 哪一个?”。 e.g. Which is bigger, the earth or the moon? 哪一个大, 地球还是月球？,as.as意为 “和一样 ”, 表示同级的比较。使用时要注意第一个as为副词, 第二个as为连词。其基本结构为： as+ adj./ adv. +as。,(1)This film is as interesting as that one.这部电影和那部电影一样有趣。 (2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。,as.as的用法,其否定式为not as/so +adj./ adv. +as。,This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。,若有修饰成分, 如twice, three times, half, a quarter等, 则须置于第一个as之前。,Your bag is twice as expensive as mine. 你的袋子比我的贵一倍。,(1) as.as possible,Please answer my question as soon as possible. 请尽快回答我的问题。,(2) as.as usual/before,She looks as pretty as before. 她看起来和以前一样漂亮。,关于as.as的常见句型,(3) as long as . (引导条件状语从句),It took us as long as three years to carry out the plan. 我们花了长达三年的时间才完成这项计划。,(4) as far as,He walked as far as the railway station yesterday evening. 昨天傍晚, 他一直散步到火车站。,She cooks as well as her mother does. 她烧菜烧得跟她母亲一样好。,(5) as well as,1. The Yellow river is one of the _ river in China. (long) 2. My father gets up _. I get up _ than my father but my mother gets up the _ in my family. (early) 3. Shi Jiazhuang is a _ city. Guang Zhou is _ than it. (big),longest,earlier,earliest,early,请根据句意用括号内所给单词的适当形式填空。,big,bigger,4. Mike sings _. Mary sings _ than him but Betty sings the _ of the three. (well),well,better,best,5. I have _ books. Li Lei has _ books than I. Our teacher has the _ books. ( many ),many,more,most,Sandy is 14 years old. Jennys sister is 14 years old.,Sandy is as old as Jennys sister.,This story isnt so interesting as that one.,Rewrite the following sentences with “as (so)as”.,2. This story is interesting. That one is more interesting.,Linda plays ping-pong as well as I.,The bike doesnt go so fast as the train.,I dont talk so much as I used to.,3. Linda plays ping-pong well. I also play ping-pong very well.,4. The bike goes about 20 miles an hour. The train goes about 150 miles an hour.,5. I used to talk a lot. Now, I dont talk so much.,Practice 1,1. My father is as_ (old) as your father. 2. It is as_ (cold) today as it was yesterday. 3.Your school is not as (so ) _(large )as mine. 4. I am not as_ (strong) as a camel.,5.John is 170 cm tall. Mike is 170 cm tall, too. 6. He is fast. She is fast ,too. 7.Kitty is careful. Jane is careful, too.,old,cold,large,strong,John is as tall as Mike.,He is as fast as she.,Kitty is as careful as Jane.,Practice 2 (用最高级填空）,1.Tom is _ of the boy students in our class. ( old) 2.This is _ city that we have ever visited.(good) 3.This question is of_ importance of all.(little) 4.It was _ of his life.( bad) 5.Susans flowers are _ of all.( beautiful) 6.Our hospital is the third_ hospital in the city.( big),the oldest,the best,the least,the worst,the most beautiful,biggest,Practice ( a. 形容词) 1. It was _ yesterday than today. A. much hot B. more hotter C. the hottest D. hotter 2. This box is _ that one. A. heavy than B. so heavy than C. heavier as D. as heavy as 3. Of all the stars, the sun is _ to us. A. near B. nearer C. the nearest D. farther,1. I think Yao ming, the famous basketball player , will be _ new Star in NBA hot B. hotter C. hottest D. the hottest 2. In our city it