Lesson 5 形容词副词比较级最高级课件

1、Lesson 5 形容词、副词比较级和最高级一、规则变化形容词、副词比较级规则变化表词尾变化原级比较级最高级单音节词在词尾加-er(比较级)或-est(最高级)以字母e接尾的词加-r或-sttall hard large -er-est以重读闭音节（辅音+元音+辅音）结尾的词末尾只有一个辅音字母应双写辅音字母再加er或estbig hot thin fat wet 双写-er双写-est以辅音字母+y结尾的词变为i再加-er,或-esthappy dry earlyi-eri-est narrow clever -er-est多音节词和多数双音节词在其前面加more 和most difficu

2、lt popular slowly-more-most二、不规则变化比较级、最高级不规则变化 Adj.Adv.good、well-better-bestbad、ill-worse-worstmany、much-ore-mostlittle-less-least*far-farther（further）-farthest（furthest）*old-older(elder)-oldest(eldest)Well-better-bestbadly-worse-worstlittle-less-leastmuch-more-mostlate-later-latestfar-farther-farth

3、est*形容词、副词同形词1.原级用法：1）表肯定：和相同as + 形容词原级+ as e.g. her skin is as white as snow.2）表否定：和 不一样not as+形容词原形+as 或not so+形容词原形+ase.g. Tom is not as tall as Mike. Tom is not so tall as Mike. 形容词高频句3）so+ 形容词原级+that丛句 such+名词that丛句e.g.He is so big that he cant enter the room bythe door . 4） too+原级+ to do sth.e

4、.g.He is too young to join the army.5）形容词原级+ enough to do sth. e.g.This truck is big enough to carry 5 tons.4.“The+比较级，the+比较级”表示越越The smaller the house is, the less it will cost us the heat.5.“比较级+and+比较级”表示越来越怎么样 e.g. In spring, the days are getting longer and longer. 3.最高级用法1）who/which + be +形容词最

5、高级，A or B or C?e.g. which is the most expensive, a bicycle, a motor, or a car?2) A is one of the + 形容词最高级 + 复数名词：表示最.之一e.g. The Yellow River is one of the longest rivers in China.3) A is the + 序数词 + 最高级 + 可数名词单数 + 范围： 表示是的第几e.g. She is the second tallest student in our class.4) A is the + 最高级 + that

6、 has ever + 过去分词e.g. This is the most interesting book that I have ever read.辨析1.no/ not + 比较 级 + than 1）A is no more careful than B. A和B两人都不仔细。2）A is not more careful than B. A不如B仔细。2.more. than与其说倒不如说1）It is more like a wall than a spear.2）They are more like father and son than teacher and student

7、.3.more than + n. / num. / adj.1）There are more than fifty students in our class.2）He is more than a teacher; he is our friend.3）She is more than kind to us all.1) 如果后接名词时， much more + 不可数名词 many more + 可数名词复数2) old有两种比较级和最高级形式: older / oldest 和elder / eldest 。 elder，eldest 只用于兄弟姐妹的长幼关系。My elder bro

8、ther is an engineer.Mary is the eldest of the three sisters.3) far有两种比较级： farther，further 它们在英语中都可指距离。在美语中，farther 表示距离，further则表示进一步。I have nothing further to say.特殊形容词比较级区分副词比较级特殊变化3.有些副词有两种形式，都可以slowly slower / more slowly quickly quicker / more quicklyloudly louder / more loudly softly softer /

9、more softlyneatly neater / more neatly4.不规则变化：well betterbadly- worselittle lessmuch morelate laterfar-farther同理，最高级也是一样，把er-est more-most1.Enough 的用法Enough 修饰形容词或别的副词时必须放在所修饰词的词后He is old enough to join the army.如果是名词，位置可前可后I have got enough books.=I have got books enough.副词特殊句型和用法3. sothat和suchtha

10、t 如此.以至于.区别：So +形容词/副词+ that Such+ a/an + 形容词+单数名词+that e.g.The box is so heavy that I cant move it. He is such an honest boy that he never tells lies.翻译句子：那本书如此有趣以至于我一天就把它读完了That book was so interesting that I finished it in a day.That was such a interesting book that I finished it in a day.他是一个如此热

11、情的男孩以至于班上的每个同学都喜欢他.He is such a warm-hearted boy that each of his classmates likes him.Exercise 4. Very和much 区别Very 修饰形容词和副词的原级.e.g.He works very hard.Much修饰形容词和副词的比较级.e.g.He works much harder than before.*5.易混副词辨析1.Ago和before2.Also, too和either3.Already, yet和still1.Ago和beforeHe got to the place one

12、month _._ 1998, he had finished writing that book.That was over 20 years _, but Tom remembered it clearly.It will be 5 months _ we meet again. Ago：从现在起的若干时间以前 需用过去时或过去进行时Before：从过去起的若干时间以前 需用完成时agoBeforeagobefore2.Also, too和eitherMary wont go and Peter wont go _.I didnt sing that song _.He sings and _ paints sometimes.