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1、定义：形容词用来修饰名词或代词，表示人或事物的性质、特征、状态或属性。第1页/共25页形容词在句子中的作用形容词在句子中的作用形容词在句子中可作为定语、表语、同位语、宾语补足语、状语等；例：1、She is a bright(定语)girl and she does well in study.2、The student was absent because he was ill(表语).3、Mount tai,the famous(同位语)in our country,has been visited by millions of travellers.4、We should keep ou
2、r classroom clean(宾语补足语).5、I went to bed hungry(状语)yesterday.第2页/共25页 1)前置修饰 2)当形容词修饰 something,nothing,everything,somebody,someone,anybody,anyone,nobody,no one等不定代词时要后置修饰形容词在名词短语中的位置第3页/共25页He is my good friend.I am reading an interesting book.I have something important to tell you.There is somethi
3、ng wrong with my computer.第4页/共25页并列形容词的排序不同种类的形容词同时修饰一个名词时，其常用排列顺序如下：限：指限定词，如冠词、指示代词、不定代词、基数词、序数词等。观：指表示主观看法的词。形：指大小、长短、高低、方圆等形状的词。龄：指年龄、新、旧的词。色：指颜色的词。国：指国籍的词。材：指材料、种类的词。第5页/共25页形容词的比较级和最高级 形容词比较级和最高级的构成规则变化(1)单音节形容词，一般直接在词尾加 er和 est,分别构成比较级和最高级 talltallertallest small smaller smallest long longer
4、longest第6页/共25页(2)以 e 结尾的单词直接在词尾接 r 和 st,分别构成比较级和最高级 large larger largest late later latest safe safer safest(3)以辅音字母+y 结尾的词，先变 y 为 i,再加 er 和 est 分别构成比较级和最高级 heavy heavier heaviest happy happier happiest 第7页/共25页(4)以“辅音+元音+辅音”结尾的词，要双写词尾的辅音字母，然后再加er 和 est 分别构成比较级和最高级 hot hotter hottest big bigger big
5、gest fat fatter fattest 第8页/共25页双音节和多音节形容词双音节和多音节形容词，直接在前面加more 和 most分别构成比较级和最高级 beautiful-more beautiful-the most beautiful interesting-more interesting-the most interesting第9页/共25页不规则变化good-better-bestbad-worse-worst little-less-least far-farther/further-farthest/furthest 第10页/共25页形容词比较级和最高级的用法形容
6、词比较级的用法1.than 的比较级句型,than (prep./conj.)注意两点：(1)在than的前面必须有形容词或副词的比较级形式。(2)被比较的两个对象应该是同类事物，即事物的可比性。常见句型：A+比较级+than+B Paul is taller than Sophie.The blue suitcase is heavier than the brown one.第11页/共25页2.(more)比较级 and(more)比较级 句型用more and more 双重比较来表示事物持续不断地变化，翻译为“越来越”The city is becoming more and mor
7、e beautiful.The weather is getting warmer and warmer.第12页/共25页The more ,the more 句型此句型第一个the more 引导的部分相当于一个条件状语从句。第二个the more 引导的相当于一个主句。The more you practice,the easier it becomes.The more you give them,the more they want.第13页/共25页3.可以修饰比较级的词形容词的比较级前可以用一下表示程度的词或短语修饰：a bit,much,a little,a lot,even,
8、no 等等我现在感觉舒服多了。I feel much better now.注意：这些词一般不用来修饰比较级，very,many,quite 和 fairy 等My girl friend is very older than me.()第14页/共25页形容词最高级的用法形容词最高级的一般结构：the+形容词/副词的最高级+比较范围1.the+最高级+in+地方It is the most expensive car in the world.The Nile River is the longest river in the world.2.the+序数词+最高级+in+地方The Hua
9、nghe River is the second longest river in China.3.the+形容词/副词的最高级+of+所属范围The youngest of the family is the most successful.第15页/共25页同级比较.as 作副词，表示程度，意为“同样地”。在“asas”,“not as/soas”结构中的第一个as是副词，作“和/与(不)一样”解。Jack is as tall as his father.Jack is not as/so tall as his father.He doesnt speak English as/so
10、fluently as you.第16页/共25页1.主语+谓语+倍数+形容词/副词的比较级+than2.主语+谓语+倍数+as+形容词/副词的原级+as3.主语+谓语+倍数+the+名词+of This building is five times higher than that one.The building is five times as high as that one.The building is five times the height of that one.英文当中的倍数表到方法：英文当中的倍数表到方法：第17页/共25页练习用括号内形容词的适当形式填空。1.Mary
11、s hair is _(long)than hers.2.I think Jimmy runs _(fast)than me.从括号内选择适当的词填空。1.What a _(nice,nicer)picture it is!2.The more you eat,the _(fat,fatter)you will become.longerfasternicefatter第18页/共25页单选1._lady is very rich.A.This Chinese oldB.This old ChineseC.Old this ChineseD.Chinse this old第19页/共25页2.
12、I have_ to tell you.A.important somethingB.important anythingC.anything importantD.something important第20页/共25页3.If you want to speak English well,its_for you to practice as often as possible.A.necessaryB.differentC.difficultD.wrong第21页/共25页4.The young man is _ carry that heavy bag.A.strong enough toB.enough strong toC.not strong enoughD.strong enough第22页/共25页4.This room is _ that one.A.five times as big asB.five times as big thanC.bigger five times thanD.five times than第23页/共25页THANK YOU第24页/共25页感谢您的观看！第25页/共25页