形容词的比较级(一)八年级英语专题课件

八年级英语专题八年级英语专题形容词的比较级形容词的比较级(一一)(The Comparative Degrees(The Comparative Degrees of Adjectives)of Adjectives)八年级英语专题学习目标（学习目标（2 2分钟分钟）1.通过类比总结，学生能够正确说出比较级通过类比总结，学生能够正确说出比较级句子的句子的构成构成。2.通过习题练习，学生能够总结出单音节通过习题练习，学生能够总结出单音节词和部分双音节词词和部分双音节词变比较级的变比较级的变化规律变化规律。3.通过学习，学生能够学会形容词的通过学习，学生能够学会形容词的同级同级比较和其他比较级的常用表达方式比较和其他比较级的常用表达方式。学习目标（2分钟）通过类比总结，学生能够正确说出比较级句子的任务一任务一 RevisionRevision要求：要求：1.1.个人自主完成；个人自主完成；2.2.不会的对子相互讨论；不会的对子相互讨论；3.3.用时用时5 5分钟。分钟。任务一 Revision要求：Lilys hair is long.Lucys hair is .longerLucys hair is longer than Lilys hair.LilyLucyThan：“比”，连词或介词。用于比较级，连接比较对象。Lilys hair is long.Lucys haiThe woman is strong.The man is stronger.The man is stronger than the woman.The woman is strong.The man istallThis building is tall.That building is taller.That building is taller than this building.tallThis building is tall.ThatLilys hair is long.Lucys hair is longer than Lilys hair.The woman is strong.The man is stronger than the woman.This bread is cheap.That bread is cheaper than this bread.This building is tall.That building is taller than this building.形容词比较级的构成形容词比较级的构成A is.than B.比较级的一般形式是在单词结尾比较级的一般形式是在单词结尾+er。注意：注意：1.比较对象放于句末。比较对象放于句末。2.比较对象具有一致性。指比较对象具有一致性。指前后的比较对象之间是前后的比较对象之间是同类事物同类事物的的对比。对比。人与人比，物与物比，事与事比，人与人比，物与物比，事与事比，是一致的。是一致的。Lilys hair is long.形容词比较级的构成他比他的父亲高。他比他的父亲高。He is _ than his father.我们的教室比你们的大。我们的教室比你们的大。Our classroom is _ than your classroom.地球比月亮大。地球比月亮大。The earth is _ than the moon.这节课比那节课容易。这节课比那节课容易。This lesson is _ than that lesson.大象比猴子强壮。大象比猴子强壮。An elepant is _ than a monkey.Elepants are _ than monkeys.tallerbiggerlargereasierstrongerstronger根据汉语意思填空根据汉语意思填空他比他的父亲高。tallerbiggerlargereasi1.上海比杭州繁华。（上海比杭州繁华。（busy）Shanghai is busier than Hangzhou.2.伦敦比剑桥大。伦敦比剑桥大。(London,Cambridge,big)London is bigger than Cambridge.3.上海比深圳的历史悠久。上海比深圳的历史悠久。(old)Shanghai is older than Shenzhen.4.汤姆比我儿子高。汤姆比我儿子高。(tall)Tom is taller than my son.Tom is a taller boy than my son.根据汉语意思写句子根据汉语意思写句子上海比杭州繁华。（busy）根据汉语意思写句子任务二任务二 比较级变化规律比较级变化规律要求：要求：1.1.个人自主完成；个人自主完成；2.2.不会的对子相互讨论；不会的对子相互讨论；3.3.用时用时1010分钟。分钟。任务二 比较级变化规律要求：smallstrong clever late large easyhappyearlyhotthinfatvsmaller vstrongervcleverervlatervlargerveasiervHappiervearliervhottervthinnervfatter试写出下列形容词的比较级试写出下列形容词的比较级smallsmaller 试写出下列形容词的比较级形容词的比较级变化规律形容词的比较级变化规律1.比较级的比较级的一般形式一般形式实在词尾实在词尾+er,如：如：older,taller,longer,smaller等等.2.以以不发音的单个字母不发音的单个字母e结尾结尾+r，如：，如：larger,nicer,finer等等.3.以以辅音辅音+y结尾结尾把把y变成变成i+er，如：，如：busier,easier,earlier等等.4.辅元辅结尾的辅元辅结尾的重读闭音节重读闭音节双写最后的辅音双写最后的辅音字母字母+er，如：，如：bigger,hotter,thinner,fatter,redder,wetter等等.形容词的比较级变化规律1.比较级的一般形式实在词尾+er,elderheaviersweeterfewerheavy sweet few nice bright oldbusy round longshort light smoothred wet hardgood/well bad/badly many/much little far nicerbrighterolderbusierrounderlongershorterlightersmootherredderwetterharderbetterworselessfartherfurthermore写出下列形容词的比较级写出下列形容词的比较级elderheaviersweeterfewerheavy任务三任务三 其他比较级句式其他比较级句式要求：要求：1.1.个人自主完成；个人自主完成；2.2.不会的对子相互讨论；不会的对子相互讨论；3.3.用时用时1313分钟。分钟。任务三 要求：vI am as happy as John.v我和约翰一样高兴。vShanghai is as busy as Shenzhen.v上海和深圳一样繁忙。as.as（中间用原级）（中间用原级）和。一样和。一样（1）同级比较句式：I am as happy as Johv肯定形式:A+be+as+形容词原型+as+Bv Im as tall as my brother.v我和我的哥哥一样高。v否定形式为:not as/so+形容词原型+asvIm not as tall as my brother.v我不如我的哥哥高。肯定形式:A+be+as+形容词原型+as+B1.1.贝蒂和你一样开心。贝蒂和你一样开心。2.2.大明和汤姆一样大。大明和汤姆一样大。Betty is as happy as you.Betty is not as/so happy as you.Daming is as old as Tom.Daming is not as/so old as Tom.1.贝蒂和你一样开心。同级比较练习：Betty is as 3.她的头发和我的一样长。她的头发和我的一样长。Her hair is _mine.4.他不是和他不是和 我一样外向我一样外向(outgoing)。He _me.as long asisnt so outgoing as5.Tom is two meters tall,Jack is two meters tall,too.(合为一句合为一句,句意不变句意不变)Tom is _Jack.as tall as 3.她的头发和我的一样长。as long asisntEg:Its getting darker and darker.越来越年轻、越来越强壮、.youger and younger,stronger and stronger,表示表示“越来越越来越”（2）比较级+and+比较级 Eg:Its gettingThe more careful you are,the fewer mistakes youll make.表示表示“越越，越，越”你笑得越多，你越年轻。你笑得越多，你越年轻。The more you smile,the younger you are.The more you eat,the heavier you are.你吃得越多你吃得越多,你就会越胖你就会越胖。（3）the+比较级，the+比较级 The mor.可以修饰比较级的词有可以修饰比较级的词有much，a lot，far，even 多多.a little，a bit，一点儿一点儿Lesson One is _ （容易得多）than Lesson Two.Tom looks _(年轻一点)than before.much easier a little younger.可以修饰比较级的词有much，a lot，far，eve 当堂检测当堂检测要求：要求：1.1.个人自主完成；个人自主完成；2.2.不会的对子相互讨论；不会的对子相互讨论；3.3.用时用时 1010 分钟。分钟。当堂检测要求：1 本书跟那本书一样有趣。This book is _ _ _ that one.2 今天比昨天冷的多。It is _ _ today than it was yesterday.3 这个故事不如那个有趣。This story is _ _ _ _ that one.4 她的身体状况一天天好起来。He is getting _ _ _ every day.5.他吃的越多，人越胖。The more he eats,the _ he gets.as interesting asmuch coldernot as interesting asbetter and betterheavier根据句意填空。根据句意填空。1 本书跟那本书一样有趣。as interestin1.He isnt as tall as I.Im _than him.taller同义句转换同义句转换2.Shanghai is the biggest city in China.Shanghai is _than _city in China.biggerany other3.Daming is 16 years old,and Tom is 16 years old,too.Daming _ _ _ _ Tom.isbigasas1.He isnt as tall as I.Im 4.Tony has 3 pens,and his sister has 2 pens.Tonys sister has _ _ than Tony.5.My uncle is fatter than my father.My father is _ _ than my uncle.6.The place was not so noisy as it usually is yesterday.The place was _ _ it usually is yesterday.thinner thanthanquieterpensfewer4.Tony has 3 pens,and his si 反思升华反思升华1.1.本节课你学到了什么知识？本节课你学到了什么知识？2.2.你还有哪些不会的知识？你还有哪些不会的知识？反思升华本节课你学到了什么知识？See you