比较级/最高级变化规则：
1、规则变化:
(1) 单音节和部分双音节形容词和副词,在原级的后面加上er,est构成比较级和最高级。 情况 一般情况 构成方法 加-er或-est 原级 比较级 最高级 new newer newest long longer longest fine finer finest late later latest early earlier earliest happy happier happiest 以不发音e 结尾的词 加-r或-st 以“辅音+y” 结尾的词 变y为i再加-er 或-est 重读闭音节 原级 useful(有用的) difficult(困难的) delicious（美味的）
hot hotter hottest 先双写辅音字母，再加-er或-est thin thinner thinnest (2) 两个音节或两个以上的音节的,在原级前加more / most.
比较级 more useful more difficult more delicious 最高级 most useful most difficult most delicious 2、不规则变化 (两好两坏两多一少一老一远)
原级 good好的 well好；(身体)好的, bad,badly糟糕的,糟糕地 ill(身体)不舒服的 many许多的(可数) much许多的(不可数)；非常 little少的 far远的；远地
比较级 最高级 better更好的 best最好的 worse更糟糕的,更糟糕地；(身体)更不舒服的 worst最糟糕的,最糟糕地；(身体)最不舒服的 more更多的；更 most最多的；最 less更少的 farther更远的；更远地 further进一步的(地) least最少的 farthest最远的；最远地 furthest最深刻的(地) (1) 形容词older/elder和oldest/eldest的用法区别：
区别：elder与eldest主要用于表明长幼关系，通常用于人，只做定语不做表语，也不与than连用。
This is my eldest son. 这是我的大儿子。
His elder brother works in a clothing factory. 他哥哥在一家服装厂工作。
(2) 形容词farther/further和farthest/furthest的用法区别：
a) 表示距离时，四个词都可用。
I can throw much farther/further than you. 我可以比你扔得更远。
What’s the farthest/furthest distance you’ve ever run? 你跑过最远的距离是多少？
b) 如果用于引申义，表“更进一步”、“更多”、“此外”等义，只能用further。如： We’ll further discuss it. 我们会进一步讨论它。
形容词原级用法
1）A+ 谓语+ as+ adj/adv 原级+ as + B ：表示“A和B一样…… ”
eg: Tom is as tall as Bob./ He does his homework as carefully as Tom.
A+ 谓语+（倍数）+ as+ adj/adv 原级+ as + B ：表示“A是B的几倍…… ”
This apple is threes times as big as that one. 这个苹果是那个苹果的三倍。
A+ 谓语否定形式（not）+ as（so）+ adj/adv 原级+ as + B 表示“A不如B……”
否定形式可用比较级进行句型转换。
Tom is not as/so tall as Bob.= Bob is taller than Tom.
2）as soon as possible\\ as soon as you can：尽可能地快；
as well as和…一样好\\ 也，又
比较级用法
1） …比较级+ than…； eg: A horse is heavier than a sheep.
Which/who is +（the）比较级，A or B?；eg: Which is the older, Tom or Bob?
倍数+比较级+ than… eg: This apple is threes times bigger than that one.
2) 比较级 and 比较级（单音节词） 表示越来越……
more and more +原级（多音节词）
eg: The tree grows taller and taller.
Our environment is becoming more and more beautiful with our hard work.
3）The+ 比较级……，the +比较级……：表示“越……越……”
eg: The more money you make，the more you spend.
4）比较级 前可用much、even、far、a bit、a little 等来修饰；
原级 前可用very、too、so、enough、rather、quite等修饰。
The girl is much more beautiful.
The boy is much taller. (切记不能用more来修饰比较级，more本身的构成多音节形容词的比较级)
The book is quite cheap.
5)“the+比较级+of the two”表示“两者中比较…”
如：He is the cleverer of the two boys.
6) “比任何一个都…” “形容词的比较级+than any other+单数名词”(范围内)
可以与最高级进行互换
“形容词的比较级+ than any+单数名词”（范围外）
如： He is taller than any other boy in his class=He is the tallest boy……
China is larger than any country in Africa. 中国比非洲的任何一个国家都大。
最高级用法
1）the + 最高级+ 由of/ in构成的表示范围的介词短语 在…最…
I am the tallest of all the students in my class.
2）one of the +最高级+名词复数 最…之一
Beijing is one of the biggest cities in China.
3）the+序数词+最高级：表示某个范围内在第几位
The Yellow River is the second longest river in China.
注：形容词的最高级前面一般要加定冠词the，但当形容词最高级前有物主代词、名词所有格等修饰词时，则不用定冠词the。
This is my busiest day. 这是我最忙的一天.
课堂练习
写出以下形容词与副词的比较级与最高级
nice－_______－_______； thick－_______－_______；
small－_______－_______； fine－_______－_______；
hot－_______－_______； heavy－_______－_______；
slowly－_______－_______； carefully－_______－_______；
far－_______－_______； little－_______－_______
beautiful－_________－_________ careful－_______－_______
选择题
1. Don't worry, sir. I'm sure I can run _________ to catch up with them.
A. slowly enough B. enough slowly C. fast enough D. enough fast
2. The text is very easy for you. There are ________ new words in it.
A. a few B. a little C. few D. little
3. It's such an ________ film that all the students are ______ in it.
A. interesting; interested B. interested; interesting
C. interesting; interesting D. interested; interested
4. Most of the people in Guangdong are getting ________.
A. more and more rich B. more rich and more rich
C. richer and richer D. richer and richest
5Which lesson is _______, this one or that one?
A. difficult B. much difficult C. more difficult D. the most difficult
6. . \"A ______ accident happened at 7:30 a.m.\" said the policeman _______.
A. serious, serious B. seriously, seriously C. seriously, serious D. serious, seriously
7. In our city, it is ______ in July, but it is even _______ in August.
A. hotter; hottest B. hot; hot C. hotter; hot D. hot; hotter
8. India has the second _______ population in the world.
A. larger B. most C. smallest D. largest
9.The cake smells ______. Please throw it away.
A. good B. badly C. bad D. well
10. --- What was the weather like yesterday?
--- It was terrible. It rained so ________ that people could _______ go out.
A. hardly…hard B. hardly… hardly C. hard… hardly D. hard… hard
课后作业
( ) 1. 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.Beijing is one of____ in China.
A. the largest city B. the large cities C. the larger cities D. the largest cities
( ) 3. Your room is ___ than mine.
A. three time big B. three times big C. three times bigger D. bigger three times
( ) 4. English is one of____ spoken in the world.
A. the important languages B. the most important languages C. most important language D. the most important language
( ) 5. Maths is more popular than____.
A. any other subject B. all the subjects C. any subject D. other subject ( ) 6. China is larger than ____ in Africa.
A. any other country B. other countries C. the other country D. any country
( ) 7. Tom is stronger than ___ in his class. A. any other boy B. any boys C. any boy D. other boy
( ) 8. When spring comes, it gets____. A. warm and warm B. colder and colder
C. warmer and warmer D. shorter and shorter ( )9. Tom is one of ____ boys in our class. A. tallest B. taller C. the tallest B. the tall
( )10. The fifth orange is____ of all. Give it to that small child.
A. big B. bigger C. the bigger D. the biggest
( )11. When spring comes the days get ____ and nights ____. A. short; long B. long; short C. longer; shorter D. shorter; longer
( )12.Which do you think tastes ____, the chicken or the fish? A. good B. better C. best D. well
( )13. Which is___country, China or Japan? A. the large B. the larger C. larger D. largest ( ) 14. Which do you like ___, tea or coffee? A. well B. better C. best D. most
( ) 15. This work is ____ for me than for you.
A. difficult B. most difficult C. much difficult D. more difficult
用所给词的正确形式填空
1. The town is (clean)than it used to be.
2. Is football (exciting) than volleyball.
3. I think she looks (pretty) than in the photo.
4. Can you walk (far) than a young man?
5. Lily is the (beautiful) of all girls.
6. Hailan is a very large island. It’s the second (large) island in China.
补全对话
A. see B. films C. problem D. making E. watching F. relaxed A: Paul, do you enjoy detective films?
B. Yes, I often watch them. What kind of do you like, Jane?
A: I like comedies(喜剧).
B: Why?
A: Because they are very funny and they can make me .
Do you want to go and a comedy with me this evening? I am sure that you’ll like it.
B: OK. I think we can watch a detective film together sometime.
A: No .
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