比较级及比较结构课件.ppt

1、Be slow is choosing a friend,slower in changing.A good book is the best of friends,the same today and forever.A friend is easier lost than found.1形容词和形容词和副词副词 的的比较等级比较等级2比较比较 结结构构3关于比较关于比较结构用法结构用法的补充说的补充说明明 比较等级和比较结构比较等级和比较结构形容形容词规词规则形则形式式 副词规副词规则形式则形式 不规则不规则 三音节及以上三音节及以上双音节双音节单音节单音节综合形式综合形式 Kind cl

2、ear old cold long分析形式分析形式InstructiveBeautifulDifficultcomplicated contemptible两种形式两种形式Tender，Clever以以-y，-ow结结尾的综合形式尾的综合形式HappyPrettyNarrowshallow综合形式综合形式（Synthetic Form)：-er,-est分析形式分析形式（Analytic Form）:加加more，mostFastHardSoonlate单音节单音节:综合形式综合形式以以 ly 结尾：结尾：分析形式分析形式ClearlyWiselyFrugallyoften少数不规则少数不规则

3、 Bad Good Well old Far Much Badly wellAsas 1.Morethan 2.The most 3.三种结构三种结构基本模式：基本模式：as+形容词或副词原级形容词或副词原级+as-分句分句John is as bright as Bob.John behaves as politely as Bob(does).否定形式：否定形式：John is not as/so bright as Bob.John does not behave as/so politely as Bob.还可以用还可以用lessthan 结构来表示否定：结构来表示否定：John is

4、 less bright than Bob.John behaves less politely than Bob.Asas结构结构 基本模式：形容词或副词比较级基本模式：形容词或副词比较级 +than-分句分句John is brighter than Bob.John behaves more politely than Bob.否定形式：否定形式：lessthan not so/asasMorethan 结构结构 基本结构：基本结构：(the)+形容词形容词/副副词最高级词最高级+比较范围比较范围John is the brightest of the three boys.Of the

5、 three boys john behaves(the)most politely.The most结构结构 在在asas 结构中，通常是主句主语和分句主结构中，通常是主句主语和分句主语不同，而比较项目相同语不同，而比较项目相同:John is as bright as Bob(is).有时也可能主语相同，而比较项目不同：有时也可能主语相同，而比较项目不同：The swimming pool is as wide as it is long.也可能两个主语和两个比较项目都不同：也可能两个主语和两个比较项目都不同：The swimming pool isnt twice as wide as

6、that one is long.另一种模式：另一种模式：as much/many（限定词）（限定词）+名词名词+as-分句分句He took as much butter as he needed.否定形式：否定形式：He didnt take so/as much butter as he needed.另一个变体：另一个变体：as+形容词原级形容词原级+名词词组名词词组+as-分句分句George is as efficient a worker as Jack.=George is a worker(who is)as efficient as Jack.读起来调核（读起来调核（nuc

7、leus）位置不同：）位置不同：变体中，名词；基本形式，形容词。变体中，名词；基本形式，形容词。不定冠词不定冠词+单数名词单数名词 or 零冠词零冠词+不可数名词不可数名词 的使用没有的使用没有那样频繁。那样频繁。有时，有时，听起来不够自然，另一种方法：听起来不够自然，另一种方法：This street is less wide than that one.This street is narrower than that one.Bill speaks French less well than he writes it.Bill speaks French worse than he wr

8、ites it.另一种模式：限定词另一种模式：限定词more/less/fewer+名词名词+than 分句分句She has written more essays than he.变体：变体：不定冠词不定冠词/零冠词零冠词+形容词比较级形容词比较级+名词名词+than 分句分句John is a more efficient worker than Jack.转换为：名词词组转换为：名词词组+more than 结构结构John is a worker more efficient than Jack.定冠词定冠词+形容词或副词比较级形容词或副词比较级+of 词词组组(只用于两者之间的比较

9、）只用于两者之间的比较）John is the brighter of the two boys.More/less 还可用作代词，与某些可等还可用作代词，与某些可等级名词级名词(gradable noun)搭配搭配He is more /less of a sportsman than his brother.=He is more/less sportsmanlike than his brother.比较级范围不表示的情况：比较级范围不表示的情况：在一定上下文中在一定上下文中A:Six juicy oranges,please.B:These are our juiciest.有些最高级

10、结构并不是和其他事物相有些最高级结构并不是和其他事物相比比Please accept my deepest gratitude.I shall do it with the greatest pleasure.表示最高级的相反意义，表示最高级的相反意义，the least 结构结构This is the least difficult book Ive ever read.在实际使用上常用最高级在实际使用上常用最高级This is the easiest book Ive ever read.其他结构：其他结构：MorethanGeorge did more work this morning

11、 than anyone else.=George did the most work.AsasNothing in my life shook me so deeply as my first visit to China.=My first visit to China shook me the most deeply.否定词否定词+比较级比较级I like nothing better.=Its the best thing I like.morethan 结结构的其他用法构的其他用法 not so as与与not so muchas not more/-er than与与 no mor

12、e/-er than the more the more 与more and moreThe concert was more enjoyable than the lecture.The living room is larger than the dining room.John is more daring than quick-witted.George is more intelligent than aggressive.The present crisis is much more a political than an economic crisis比较五句中的不同用法比较五句

13、中的不同用法 London isnt so large as Tokyo.It wasnt so much his appearance I liked as his personality.John is not better than Tom.John is no better than Tom.No nicer than=as poor asNo bigger than=as small asNo later than=as early as The morethe more 表示表示“越越越越”The older I get,the happier I am.省略：省略：The sooner this is done,the better.More and more 表示表示“越来越越来越”The car was running faster and faster.Better the last smile than the first laughter.