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1、在使用形容词或者副词时，我们需要表达“更怎么样”时，就会用到形容词或副词的比较级。第1页/共28页Liu Xiang is tall.Yao Ming is taller than LiuXiang.Yao MingLiu Xiang第2页/共28页The small dog runs fast.The horse runs faster than the small dog.fastfaster第3页/共28页 形容词和副词的比较级形容词和副词的比较级（The Comparative and Superlative degrees of Adjectives and Adverbs)英语中有
2、时需要对两者进行比较，这时就英语中有时需要对两者进行比较，这时就需用形容词或者副词的比较等级。需用形容词或者副词的比较等级。比较等级分为：比较等级分为：原级原级 old late 比较级比较级 older later 最高级最高级 oldest latest第4页/共28页1.1.形容词比较级和最高级的构成 ：单音节形容词、单音节形容词、副词的构成方法副词的构成方法原级原级比较级比较级最高级最高级一般在词尾加一般在词尾加-er 或或-est tall taller tallest以字母以字母e结尾的结尾的单词加单词加-r 或或-st nice fine nicer finer nicest f
3、inest 以以“辅音字母辅音字母+y”结尾的双音节词，结尾的双音节词，先改为先改为i,再加再加-er或或-estearly heavy earlier heavier eariest heaviest规则变化第5页/共28页more carefullymorebeautifulthinnerbiggerhottermostcarefullymostbeautifulthinnestbiggesthottestcarefully beautiful多 音节词或少数双音节词，在词前加more 或mostthinbighot重读闭音节词尾只有一个辅音字母时，应先双写这个辅音字母，再加-er 或-e
4、st第6页/共28页第7页/共28页Summer is hot.Summer is hot.Summer is _ than spring.Summer is _ than spring.Winter is cold.Winter is cold.Winter is _ than autumn.Winter is _ than autumn.第8页/共28页Zen Zhiwei is short.Xiao xin is shorter than Zen Zhiwei.Zen ZhiweiXiao xin第9页/共28页Liu Yifei is thin.Mike is thinner than
5、 Liu Yifei.Liu YifeiMike第10页/共28页JackJohnJack jumps high.John jumps higher.第11页/共28页Li Yong is funny.Pan Changjiang is funnier than Li Yong.Li YongPan Changjiang第12页/共28页7:50They got up late this morning.He got up later than them/they.第13页/共28页Q3：通常在什么情况用形容词比较级？地球比月球大The earth is larger than the moo
6、n.1、两者之间的比较，句中有明显的标志词 than。数学和英语，哪个更容易？变式练习：这本书比那本书有趣。Which is easier,maths or English?2、Which/Who is+比较级,A or B?变式练习：周杰伦和张杰，谁更受欢迎？注意：注意：asas虽然用的是形容词副词的原级，但虽然用的是形容词副词的原级，但是也有表达比较的意思，否定形式是也有表达比较的意思，否定形式not as/so asEg:He is as tall as me.他跟我一般高。他跟我一般高。He works as hard as Tom.他跟他跟Tom一样刻苦。一样刻苦。第14页/共28页
7、Q4：有哪些特殊情况下也使用形容词的比较级？汤姆是这两个男孩中 较高的一个Tom is the taller of the two boys.1、is the+比较级+of the two.(两者中较）天变得越来越黑。变式练习：曙光学校是两所学校中较好的一所。Its getting darker and darker.2、越来越比较级+and+比较级 “越来越”（单音节词和部分双音节词）变式练习：他有越来越多的朋友。第15页/共28页保山变得越来越美丽Baoshan is becoming more and more beautiful.2）More+and+more+原级 越来越”（多音节
8、词和部分 双音节词）你吃得越多，就变得越胖。变式练习：英语越来越重要。The more you eat,the fatter you will become.3、The+比较级，the+比较级 “越，就越”变式练习：你锻炼的越多就越健康。第16页/共28页4.比较级形式用来表示最高级概念 than any other+单数名词 比较级+than the other+复数名词 （比其他任何一个都）Tom在他班上比其他任何一个男孩都高。Tom is taller than any other boy in his class.=Tom is taller than the other boys i
9、n his class=Tom is the tallest boy in his class.变式练习：这个教室比任何一个教室都大。第17页/共28页5.much,a lot,a bit,a little,even,far 等修饰比较级 Lucy比她姐姐胖的多。Lucy is much heavier than her sister.变式练习：她今天比我更高兴。第18页/共28页课堂总结I 形容词的比较的基本构成单音节和 部分双音节词一般在词尾加 er,以字母e 结尾的词,加 r,重读闭音节词只有一个辅音字母时,双写辅音字母,加 er,以辅音字母加“y”结尾的双音节词,先改“y”为“i”再加
10、er,多音节和部分双音节词在词前加moreII 形容词比较级的五个特殊变化.good/wellbetter bad/ill/badlyworse many/muchmore littlelessfarfarther第19页/共28页III 形容词的比较级基本运用than用比较级Which/Who is+比较级,A or B?IV 形容词比较级在特殊情况下的几个用法 is the+比较级+of the two.(两者中较）比较级+and+比较级 “越来越”The+比较级the+比较级“越越”比较级形式用来表示最高级概念than any other+单数名词 比较级+than the other+
11、复数名词 much,a lot,a bit,a little,even,far 等修饰比较级第20页/共28页一、写出下列形容词的比较级Shortillbiglateeasydelicious shorter目标检测worsebiggerlatereasiermore delicious第21页/共28页1、His pencil is very more expensive than mine.2、Which is more useful of the two dictionaries?3、The careful you are,the few mistakes you will make.v
12、ery改为muchmore useful改为the more usefulThe careful改为The more careful the few 改为the fewer第22页/共28页1.A horse is _ than a dog A.much heavy B.more heavier C.much heavier 2.Emma always makes a lot of mistakes.She is _ A.care B.careful C.carefully D.careless3.Which subject is _,physics or chemistry?A.intere
13、sting B.most interesting C.more interesting D.the most interesting CDC第23页/共28页4.In our city its _ in July,but it is even _ in August A.hotter hottest B.hot hot C.hotter hot D.hot hotter5.The bread is _ than these cakes A、Very delicious B.much delicious C.more delicious D.as delicious6._ you work,_y
14、our future wil be.A.Harder;better B.The more hardly;the more beautiful C.The more hard;the better D.The harder;the brighterDcD第24页/共28页 7.This book is more interesting than _ A.anything B.any books C.any other books D.any other book 8.Everyone knows China is getting_ A.strong and strong B.stronger and stronger C.more strong and strong D.strongest and strongest 9 In order to keep healthy,you should eat _fast food,_fresh vegetables and take enough exercise.Afewer,fewer B.less,more C.fewer,more D.less,less DBB第25页/共28页 additional expressions第26页/共28页第27页/共28页谢谢您的观看！第28页/共28页