八年级英语比较级和最高级讲解与练习.doc

比较级和最高级
一、比较级的用法:
当两个人或事物（A和B）进行比较时，我们需要用到形容词（副词）的原级或者比较级
1． 表达“A和B一样”，用as…as的结构。
公式: A+be动词+as+形容词原级+as…+B
A+实义动词+as+副词原级+as…+B
Eg I am as tall as you.
He runs as fast as I.
我的房间和她的一样大。
他游得和我一样好。
2．表达“A不如B”用not as…as的结构。
公式: A+be动词的否定形式+as+形容词原级+as…+B
A+助词的否定形式+动词+as+形容词原级+as…+B
Eg I am not as tall as you.
He doesn’t run as fast as I.
我的房间没有他的大。
我没有他游得好。
3. 表达“A大于B”用“比较级+than”的结构。
公式: A+be动词+形容词比较级+than+B…
A+实义动词+副词比较级+than+B…
Eg I am taller than you.我比你高。
He runs faster than I. 他跑得比我快。
我的房间比他的大。
我游得比他的好。

4. 表示A 是...中最大的结构
公式： A+be动词+the +形容词最高级+范围
A+实义动词+the+形容词最高级+范围
I am the tallest in my class.
He runs the fastest in my class.
我的房间是这里最大的。
我游得是我们班最好的。
二.形容词和副词的比较级和最高级的变化方法如下
(1) 符合规则的：

情 况
加 法
例 词
一 般 情 况
直接加 -er ; -est
all-taller-tallest
以不发音e结尾的词
去e加 –er ; -est
nice-nicer-nicest
以“辅音+y”结尾的词
变y为i再加-er ; -est
dry-drier-driest
heavy-heavier-heaviest
重读闭音节结尾的词
双写末尾辅音字母，再加-er ; -est
thin-thinner-thinnest
多音节和部分双音节单词
在词前加 more ; most
more delicious
most delicious
(2)几个不规则的形容词和副词的比较级和最高级如下表：

原 级
比较级
最高级
good , well
better
best
bad , ill
worse
worst
many , much
more

most
little
less
least
far
farther / further
farthest / furthest

练习1：写出下列词的比较级和最高级
tall ﹍﹍ ﹍﹍ slow ﹍﹍ ﹍﹍ small ﹍﹍ ﹍﹍ fast ﹍﹍ ﹍﹍ smart ﹍﹍ ﹍﹍ few ﹍﹍ ﹍﹍

nice ﹍﹍ ﹍﹍ fine ﹍﹍ ﹍﹍ large ﹍﹍ ﹍﹍
late ﹍﹍ ﹍﹍ brave ﹍﹍ ﹍﹍

pretty ﹍﹍ ﹍﹍ easy ﹍﹍ ﹍﹍ funny ﹍﹍ ﹍﹍
happy ﹍﹍ ﹍﹍ lazy ﹍﹍ ﹍﹍ heavy ﹍﹍ ﹍﹍
dirty ﹍﹍ ﹍﹍ dry ﹍﹍ ﹍﹍ early ﹍﹍ ﹍﹍
busy ﹍﹍ ﹍﹍

slim ﹍﹍ ﹍﹍ hot ﹍﹍ ﹍﹍ big ﹍﹍ ﹍﹍
thin ﹍﹍ ﹍﹍ fat ﹍﹍ ﹍﹍ wet ﹍﹍ ﹍﹍

beautiful ﹍﹍﹍﹍ ﹍﹍﹍﹍ interesting ﹍﹍﹍﹍ ﹍﹍﹍﹍
important ﹍﹍﹍﹍ ﹍﹍﹍﹍ dangerous ﹍﹍﹍﹍ ﹍﹍﹍﹍
expensive ﹍﹍﹍﹍ ﹍﹍﹍﹍ polite ﹍﹍﹍﹍ ﹍﹍﹍﹍
careful ﹍﹍﹍﹍ ﹍﹍﹍﹍ exciting ﹍﹍ ﹍﹍

bad/badly/ill ﹍﹍ ﹍﹍ little ﹍﹍ ﹍﹍
many/much ﹍﹍ ﹍﹍ old ﹍﹍﹍﹍ ﹍﹍﹍﹍
far ﹍﹍﹍﹍ ﹍﹍﹍﹍

练习2 填空
1. Bob is _________ ( young ) than Fred but ___________ (tall) than Fred.
2. Yingtian is not as ___________ (tall) as Yongxian.
3. Almost all the students' faces are the same but Li Deming looks _______(fat) than before .
4.Which is _________ (heavy), a hen or a chicken?
5. He is ______ (bad) at learning maths. He is much _______ (bad) at Chinese and he is the _________ (bad) at English.
6. Annie says Sally is the ________ (kind) person in the world.

7. An orange ia a little ______ (big) than an apple, but much ________ (small) than a watermelon.
8. The Changjiang River is the _______ (long) river in China.
9. Sue is a little _______ __ (beautiful) than her sister.
10.My room is not as _________ (big) as my brother' s.
11.--How difficult is physics? --I' m not sure.
-- Is it ________ (difficult) than maths? -- I don' t think so.
12.-- Annie plays the piano very ___________ (well).
-- Sue plays it _____ (well) than Annie. And Sally plays it the _______(well).
13. Saturday is my _________ (busy) day in a week.

练习3：选择
1. Which do you like _______, tea or coffee?
A. well B. better C. best D. most
2.This work is _______ for me than for you.
A. difficult B. most difficult C. much difficult D. more difficult
3.Who jumped_______of all?
A. far B. farther C. farthest D. the most far
4.Li Lei is_______ student in our class.
A. tall B. taller C. tallest D. the tallest
5. Tom is one of _______ boys in our class.
A. tallest B. taller C. the tallest B. the tall
6. 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
7. Which is_______, Li Lei or Wu Tong?
A. strong B. strongest C stronger D. the strongest
8..Jean works hard but she doesn’t work ____ Mary.
A, as harder than B, as hard than C, as harder as D, as hard as
9.This is ____ book in our library.
A, the most interesting B, most interesting C, the more interesting D, more interesting
10.They got a Christmas tree and it was ____ ours.
A, so tall as B, so taller as C, as tall as D, as taller as
11.A taxi doesn’t run as ____ as an underground train.
A, fast B, faster C, fastest D, more fast
12.Yangpu Bridge is one of ____ in the world.
A, bigger bridge B, the biggest bridge C, the biggest bridges D, bigger bridges
13.Her cousin can draw ____ an artist.
A, as well as B, not so well as C, as better as D, as good as
14.Jinmao Tower is ____ building in Shanghai.
A, high B, tall C, highest D, the tallest
15. This box is___ that one.
　A. heavy than B. so heavy than　 C. heavier as D. as heavy as
16 I think the story is not so ___ as that one.
　A. interesting B. interested C. more interesting D. most interesting