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1、形容词、副词的比较级和最高级的构成和用法。（一 ）比较级和最高级的构成：1 加-er,-est构成比较级和最高级。【1】单音节形容词和副词high-higher-highest hard-harder-hardest 【2】以不发音的-e结尾的safe-safer-safest late-later-latest【3】辅音字母要双写的情况：big-bigger-biggest hot-hotter-hottest【4】以辅音加-y结尾的情况dry-drier-driest merry-merrier-merrist2 加more,most构成比较级和最高级。【1】多音节的形容词和副词expen
2、sive-more expensive-most expensivecarefully-more carefully-most carefully【2】由形容词加-ly构成的副词slowly-more slowly-most slowlyhighly-more highly-most highly【3】以-ful,-less,-able,-ous,-ive,-ing等结尾的双音节形容词useless-more useless-most useless serious-more serious-most seriuos 【4】分词形容词tired,pleased及glad,often,real,
3、right,wrong等单音节形容词tired-more tired-most tiredglad-more glad-most glad（3）形容词、副词的比较级和最高级的不规则构成法。good/well-better-bestbad/ill/badly-worse-worstmany/much-more-mostlittle-less-leastfar-farther/further-farthest/furthestold-older/elder-oldest/eldest（二） 比较级和最高级的用法1 比较级的表示法：主语+be +比较级+than;主语+谓语+比较级+than（1）不
4、同主语的比较：He is two years younger than I.This machine works better than that one.Li Ming studies harder than Wang Ling.（2）同一主语不同方面的比较：She is now happier than she has ever been.The exam was easier than we expected.We have had much more rain this year than last year.（3）用于修饰比较级的词：even,(very) much,far,a lo
5、t,stillThis book is much thicker than that one.He works even harder than before.2最高级的用法以及most/mostly/almost/at most 的含义（1） 形容词和副词最高级的用法三者或三者以上的比较用最高级。表示最高程度时，用“the+最高级”的结构表示。最高级中表示比较范围的常用among,in,of引导的介词短语或从句表示。Yesterday was the hottest day of the year. He works (the) hardest in his class.Shanghai i
6、s among the largest cities in the world.This is the tallest building in our school.Of all the books,this is the most useful one for us students.It is the biggest zoo Ive ever visited.（2） 修饰最高级的词最高级可以用序数词以及much,by far,nearly,almost修饰The Yellow River is the second longest in China.Of the three boys Ja
7、ck is almost the cleverest.（3）可以不加冠词的情况作状语的副词最高级前可以不加定冠词Of all the boys he came (the) earliest.I like spring best.（4） most,mostly,almost,at most的用法A most作副词，构成形容词和副词的最高级most 作副词，构成大多数双音节或多音节形容词和副词的最高级形式，前面常有定冠词。Which do you think is the most comfortable hotel in this town?B most 作副词，修饰形容词和副词，用来加强语气，
8、表示“极”“十分”，前面不用定冠词。Its most dangerous to play with fire.C most 作形容词修饰名词。most 作形容词，意为“大多数的，大部分的，几乎全部的”，修饰名词，前面不用冠词。与most of 同义，但most of 名词前必须加冠词。Most English words are not difficult to remember.Most of the students had left when she came.D mostly意为主要地，多半地，相当于mainly.He uses his bike mostly for going to
9、 school.The students are mostly young people between the ages of sixteen and twenty.E almost 意为几乎 ，相当于very nearly.He spent almost the whole day reading English.F at most 意为最多，与at least相对。I can pay only twenty dollars at most.课堂练习：一 用适当的形容词比较级或最高级形式完成下列句子。1 Its too noisy here. Can we go somewhere _?2
10、 The hotel was surprisingly big.I expected it to be_.3 The weather is too cold in this country.Id like to live somewhere_4 My job is a bit boring sometimes.Id like to do something_5 Your work isnt very good.Im sure you can do_.6 I was surprised how easy it was to use the computer.I thought it would
11、be _.二 选择最佳答案填空：1 The world is becoming smaller and smaller because the Internet brings us_.A the close B closer C the closer D close2 What do you think of her singing?Oh,no one sings_.A good B well C better D best3 _ terrible weather it is!It is said that it will get_later.A What,bad B What,worse C
12、 What a,bad D What a ;worse4 We spent all our money because we stayed at the most expensive hotel in town.Why didnt you stay at_ one? A a cheap B a cheaper C the cheap D the cheaper5 Mom,could you have an MP3 like this?Certainly,we can buy _ one ,but as good as this.A a cheap B a cheapest C a cheape
13、r D the cheapest6 Who is Tom?A great policeman.She always thought _ of others than herself.A more B much C less D most7Tom is good at drawing.How about Mike?Mike is _, I think.He has got more prizes than Tom.A well B worse C good D better8 Which is _,the sun,the moon or the earth? Of course,the moon
14、 is.A small B smaller C smallest D the smallest9 Who can reach the book on the top shelf?Jack can. He is _ boy of us all.A taller B a tall C the tallest D much taller10 All the students in our class are over fifteen except Li Lei.He is _ in our class. A younger B older C the oldest D the youngest11 My sister sings English songs_ of us all.A badly B worse C more badly D worst12 Mr Zhang ,of all the students in our school,who lives_?I think Li Lei does.A far B farther C farthest D the farther13 Who used to get up _ in
