比较级的详细用法.ppt

关于比较级的详细用法现在学习的是第1页，共22页Jack is heavy.Guo Shanshan is heavier than Jack.JackGuo Shanshan现在学习的是第2页，共22页Li Yong is funny.Pan Changjiang is funnier than Li Yong.Li YongPan Changjiang现在学习的是第3页，共22页Liu Yifei is thin.Mr.Wang is thinner than Liu Yifei.Liu YifeiMr.Wang现在学习的是第4页，共22页 在对在对两者两者进行比较时，形容词要采用进行比较时，形容词要采用比比较级较级形式。形容词比较级之后多用形式。形容词比较级之后多用than引引出比较的对象。出比较的对象。即：即：比较级比较级+than，than后面连接另一个后面连接另一个作比较的人或物。作比较的人或物。概念及结构概念及结构现在学习的是第5页，共22页形容词比较级形容词比较级1.比较级的构成比较级的构成单音节词和少数双音节词，在词尾加单音节词和少数双音节词，在词尾加er。单音节形容词比较级变化口诀：单音节形容词比较级变化口诀：比较级要变化比较级要变化，一般词尾加一般词尾加er。词尾若有哑音词尾若有哑音e，直接加直接加r就可以就可以。一般重读闭音节一般重读闭音节，末尾辅音须双写末尾辅音须双写。辅音字母加辅音字母加y型型，变变y为为i加加er。多音节有规则多音节有规则，原形前面加上原形前面加上more。现在学习的是第6页，共22页二、不规则形容词的比较级最高级二、不规则形容词的比较级最高级原 级比 较 级最 高 级good/wellbetterbestmany/muchmoremostlittlelessleastill/bad/badlyworseworstfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest注：注：older 一般指一般指年龄大小年龄大小；My father is older than my mother.elder指指长幼关系长幼关系(一般修饰名词一般修饰名词作定语作定语);My elder brother is a driver.farther指指距离更远距离更远；further指指抽像的抽像的.I want to study English further.further reading现在学习的是第7页，共22页用所给的形容词副词的适当形式填空。1.Tom is _(tall)than Jim.2.Li Lei is _ (young)boy in his class.3.David has _(many)story books of all the students.4.Li Lei speaks English _(well)in his group.5.Lucy runs _(slow)than Lily.tallerthe youngestthe mostthe bestslower现在学习的是第8页，共22页改正下列句子中一处的错误。A Tom comes to school late than Jim._B.Which do you like better,cats,dogs,or chickens?_C.Who is oldest in our class?_D.He thinks math is importanter than Chinese._E.This work is very harder than that one._F.He lives farer than any other student in your class._very+原形，very-much现在学习的是第9页，共22页比较级的运用比较级的运用1.A+be+比较级比较级+than B。表示。表示“A比比B更更”eg:I am taller than Li Lei.This room is bigger than that one.练习：练习：我的自行车比你的新。我的自行车比你的新。My bike is newer than your bike.My bike is newer than _.注：比较必须在注：比较必须在同类事物同类事物之间进行。之间进行。yours现在学习的是第10页，共22页比较级中的代替词比较级中的代替词1.that：代替前文中的单数名词代替前文中的单数名词或或不可数名不可数名词词。eg:The engine of your car is better than _ of mine.The population of China is larger than _ of America.the enginethatthe populationthat现在学习的是第11页，共22页2.those：代替前文中的人或物的复数名词代替前文中的人或物的复数名词。eg:The girls in your class are more beautiful than _ in ours.The ears of a rabbit are longer than _ of a cat.thosethose现在学习的是第12页，共22页2.A+be+数词数词+名词名词+比较级比较级+than B.eg:Tom is two years older than I.Nancy is three years younger than Sam.练习：练习：长江比黄河长长江比黄河长1000千米。千米。The Changjiang River is 1000 _ _ _ the Yellow River.姚明比我高姚明比我高1米。米。Yaoming is 1 _ _ _ I.现在学习的是第13页，共22页3.“比较级比较级+and+比较级比较级”表示表示“越来越越来越，又又又又”。eg:It is getting warmer and warmer.You are taller and taller.练习：练习：In winter the weather is getting _ _ _.(越来越冷越来越冷)I hope you will be _ _ _.(越来越聪明越来越聪明)The life for us is becoming _ _ _.(越越来越好来越好)现在学习的是第14页，共22页注：在运用注：在运用“比较级比较级+and+比较级比较级”时，时，如果遇到多音节的形容词，如：如果遇到多音节的形容词，如：beautiful，其比较级是，其比较级是more beautiful，“越来越漂越来越漂亮亮”more beautiful and more beautiful，应该表达为：，应该表达为：“more and more beautiful”。即：即：more and more+多音节形容词多音节形容词。练习：练习：The questions are _ _ _ _.(越来越难越来越难)The cars are _ _ _ _.(越来越贵越来越贵)Computers are _ _ _ _.(越来越重要越来越重要)现在学习的是第15页，共22页4.“The+比较级比较级+主语主语+动词动词，the+比较级比较级+主语主语+动词动词”表示表示“越越，就越，就越”。eg:The harder you study,the better you are.The more you eat,the fatter you are.练习：练习：我们种植越多的树木，空气就会越新鲜。我们种植越多的树木，空气就会越新鲜。_ _ trees we plant,_ _(fresh)air we will have.现在学习的是第16页，共22页5.相同程度比较相同程度比较的句型：的句型：as+形容词或副词形容词或副词原形原形+as，表示，表示“与与一样一样”。eg:Jack is as tall as Peter.This dress is as espensive as that one.He runs as fast as I.练习：练习：1.This bridge is _ _ _(和和一样长一样长)that one.2.My dad is _ _ _(与与一样一样大大)my mum.现在学习的是第17页，共22页拓展：拓展：A+数词数词+time(s)+as.as+B。表示。表示“A是是B.几倍几倍。”eg:My house is three times as big as yours.这棵树的高度是那棵树两倍。这棵树的高度是那棵树两倍。This tree is _ that one.HJX的体重是的体重是Mr.Wang的十倍。的十倍。HJX is _ Mr.Wang.twice as tall asthree times as heavy as现在学习的是第18页，共22页A+be+the+形容词比较级形容词比较级of the twoA是是两者中较两者中较她是她是两个女孩中较美丽的。两个女孩中较美丽的。She is the more beautiful of the two.现在学习的是第19页，共22页比较级前的修饰语比较级前的修饰语在英语中常修饰比较级的词有：在英语中常修饰比较级的词有：much,a little,a bit,even,far等。等。eg:The sun is much bigger than the moon.I am a little taller than Sam.现在学习的是第20页，共22页小贴士：小贴士：哪些词后用哪些词后用形容词原形容词原形形1.very、so、quite、too等词后用原级等词后用原级。2.too to(太太.而不能而不能.);so that(如此如此.以致于以致于.);as(so)as 中间用中间用原级原级。eg:The question is too hard to answer.The boy is so young that he cant go to school.现在学习的是第21页，共22页感感谢谢大大家家观观看看现在学习的是第22页，共22页