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1、原级比较级最高级一、原级的用法1.句型：A+动词+as+原级+as B.（表示A和B两者比较，程度相同）Tom is as honest as John.汤姆和约翰一样诚实。This jacket is as cheap as that one.这件夹克和那一件一样便宜。注意为了避免重复，我们常用that, those和one一类的代词代替as后重复前面出现的名词。2.否定句：A+not +as +原级+as B.=A+not +so +原级+as B.（表示A、B两者程度不同，即A不如B那么）He is not as（so）tall as I. 他不如我高。3.疑问句：Be动词+A+ as+
2、形容词原级+as B.Is he as busy as before?他还像以前那么忙吗？Is there as much water in this glass as in that one?这个杯子里的水和那个杯子里的一样多吗？2 需注意的原级用法1.表示倍数的句型times as +形容词原级+as（是的几倍）This garden is ten times as large as that one.这个花园是那个的十倍。There are now twice as many schools in the town as in 1972.这个城镇里的学校是1972年的两倍。注意在英语中，
3、两倍用twice，而不用two times，三倍以上用three、fourtimes。2.half as+形容词原级+as（表示“的一半”）My handwriting is not half as good as yours.我的书法不如你的一半儿（好）。3.asas possible（表示“尽可能”）He is as fast as possible.他尽可能的快。二、比较级的用法1. than是比较级中最常见的标志词。than连接另一个所比较的人或物。John is taller than me. 2. 在使用比较级时，than的前后必须是同类事物的比较。（错）His bag is bi
4、gger than you.（对）His bag is bigger than yours (your bag).3. much, a little这些可以用来修饰形容词的比较级，表示程度。Lucy is a little taller than Lily.注意very, quite等程度副词一般只能修饰原级，不能修饰比较级。4. get / become.and.表示变得越来越.。and连接同一个形容词的比较级。Its getting hotter and hotter when summer comes.注意：表示越来越.时，若形容词比较级是原级+er构成的，则常用比较级 + and +
5、比较级形式；若其比较级是more + 原级构成的，则须用more and more + 原级形式。He runs faster and faster.Our hometown is getting more and more beautiful.5.The more, the more越。越。三、最高级的用法 用于三者或三者以上的比较时,表示“最.”这个概念 1、形容词最高级前必须加定冠词the，但如果最高级前有物主代词、指示代词、名词所有格等修饰时，则不用定冠词。My oldest daughter is 16 years old.2、形容词最高级常与由介词in或of引导的表示范围的短语连用
6、。若介词后的名词或代词与句中的主语是同一事物时，则用of短语；当只说明是在某一空间、时间范围内的比较时，则用in短语。This apple is the biggest of all.He is the youngest in his class. 3、形容词最高级前可用序数词限定，共同修饰后面的名词，其结构为：the+序数词+形容词最高级+名词。My father is the second busiest person in my family.This is the most difficult book of all.练习一1. This box is_ that one.A. hea
7、vy than B. so heavy than C. heavier as D. as heavy as2 When we speak to people， we should be .A. as polite as possible B. as polite as possibly C. as politely as possible D. as politely as possibly3 This book is_ that one， but_ than that one.A. as difficult as; expensive B. as more difficult as; mor
8、e expensiveC. as difficult as; more expensive D. more difficult as; as expensive4 I think the story is not so _ as that one.A. interesting B. interested C. more interesting D. most interesting5 His father began to work_ he was seven years old.A. as old as B. as early as C. since D. while练习二（ ）1. I t
9、hink science is _ than Japanese.A. much important B. important C. much more important D. more much important( ) 2 This pencil is_ than that one. A. longest B. long C. longer D. as long( ) 3 My mother is no _ young. A. shorter B. longer C. little D. few( ) 4 These children are _ this year than they w
10、ere last year. A. more tall B. more taller C. very taller D. much taller( ) 5 It was very hot yesterday， but it is_ today. A. even hotter B. more hotter C. much more hot D. much hot（ ）6. Mrs Black has got_ instead of getting any better. A. more bad B. a little worse C. much badly D. a lot of worse练习
11、三( ) 1 When we arrived， we found the meeting room crowded with_ students.A. quite a few B. only a few C. few D. a few quit（ ）2 The house is small for a family of six. A. much too B. too much C. very much D.so（ ）3 Through the window we can see nothing but _ buildings.A. tall very many B. very many ta
12、ll C. very tall many D. many very tall（ ）4 -Whats your brother like?-He is_.A. a driver B. very tall C. my friend D. at school（ ）5 The jacket was so_ that he decided to buy it. A. much B. little C. expensive D. cheapl（ ）6 Our classroom is_ larger than theirs.A. more B. quite C. very D. much练习四( ) 1
13、The earth is about_ as the moon.A. as fifty time big B. fifty times as big C. as big fifty times D. fifty as times big( ) 2 Your room is mine. A. twice as large than B. twice the size ofC. bigger twice than D. as twice large as( ) 3 Your room is _ than mine.A. three time big B. three times big C. th
14、ree times bigger D. bigger three times( ) 4 His father is_than his mother. ;A. older four years B. as four years older C. four years older D. bigger four years练习五( ) 1 Maths is more popular than_.A. any other subject B. all the subjects C. any subject D. other subject( ) 2 China is larger than _ in
15、Africa .A. any other country B. other countries C. the other country J 1% D. any country( ) 3 Tom is stronger than _ in his class.A. any other boy B. any boys C. any boy D. other boy练习六（ ）1 When spring comes， it gets_.A. warm and warm B. colder and colder C. warmer and warmer D. shorter and shorter（
16、 ）2 By and by， _ students in our class came to like English. A. more and more B. much and much C. many and many D. less and least（ ）3 At last he began to cry _.A. hard and hard B. more hard and more hard C. harder and harder D. less hard and less harder（ ）4 When spring comes the days get _ and night
17、s _.A. short; long B. long; short C. longer; shorter D. shorter; longer练习七（ ）1_ I look at the picture，_ I like it. A. The best; the more B. The more; the less C. The more; less D. More; the more（ ）2 _ he read the book， _ he got in it. A. The more; the more interesting B. The less; the more interesti
18、ng C. The more; the more interested D. More; more interested （ ）3 _ you come back， _ it will be.A The quicker; the best B. The sooner; the better C. Faster; the better D. The sooner; better练习八（ ）1 I like_ one of the two books. A. the older B. oldest C. the oldest D. older( )2 Which is_country， China or Japan? A. the large B. the larger C. larger D. largest( ) 3 Of the two cups， he bought . A. the smaller B. the smallest C. small D: smaller