六年级-比较级与最高级的用法
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课前准备：检查学生掌握单词情况（听写）
一、形容词、副词的比较级和最高级的构成规则
1
．一般单音节词和少数以
-er
，
-ow
结尾的
双音节词，比较级在后面加
-er
，
最
高级在后面加
-est
；
（
1
）单音节词
如：small→smaller→smallest
short→shorter→shortest
tall→taller→tallest
great→greater→greatest
（
2
）双音
节词
如：clever→cleverer→cleverest
narrow→narrower→narrowest
2
．以不发音
e
结尾的单音节词，比较在原级后加
-r
，最高级在原级后加<
/p>
-st
；
如：large→larger→largest
nice→nicer→nicest
able→abler→ablest
3
．在重读闭音节（即：辅音＋元音
＋辅音）中，先双写末尾的辅音字母，比
较级加
-er
，最高级加
-est
；
如：big→bigger→biggest
hot→hotter→hottest
fat→fatter→fattest
4
．以“辅音字母＋y”结尾的双音节词，
把
y
改为
i
，比较级加
-er
，最高级
加
-est
；
如：easy→easier→easiest
heavy→heavier→heaviest
busy→busier→busiest
happy→happier→happiest
5
．其他双音节词和多音节词，比较级在前面加
more
< br>，最高级在前面加
most
；
如：beautiful→more beautiful→most
beautiful
different→more different→most different
easily→more easily→mo
st
easily
注意：
（
1
）形容词最高级前通常必须用定冠词
the
，副词最高级前可不用。
例句：
The Sahara is the biggest desert in the world.
（
2
）
形容词
most
前面没有
< br>the
，不表示最高级的含义，只表示
< br>非常
。
It is a most
important problem.
=It is a very important problem.
6
．有少数形容词、副词的比较级和
最高级是不规则的，必须熟记。
如：good→better→best
well→better→best
bad→worse→worst
ill→worse→worst
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old→older/elder→oldest/eldest
many/much→more→most little→less→least
far →further/farther→
furthest/farthest
词形变换。
比较级
最高级
large
_________________ ___________________
fast _________________
___________________
easy
_________________ ___________________
wet _________________
___________________
good
_________________ ___________________
important _________________
___________________
well
__________________ ___________________
bad _________________
___________________
many
_________________ ___________________
little _________________
___________________
far
_________________ ___________________
strong _________________
___________________
patient
_________________ ___________________
safe _________________
___________________
expensive
_________________ ___________________
二、形容词、副词的比较级和最高级的句子公式：
比较级
形容词物体
A + am / are / is +
形比
+ than +
物体
B.
I am taller
than you.
Pasta is more delicious than
pizza.
副词物体
A +
行为动词
+
副比
+ than +
物体
B.
Cheetahs run
faster than goats.
He studies better
than me.
最高级
1
）物体
A + am / are
/ is + the +
形最高级
+
比较范围（
of +
人
/
物，
in
+
地方）
.
I am the tallest in the class.
Pasta is the most delicious food of the
three.
2
）物体
A
+
行为动词
+
副词最高级
+
比较范围（
of
+
人
/
物，
in
+
地方）
.
Cheetahs run fastest in the world.
He studies best of us.
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1. She is
________ than ________ .
A. busier / us
B. busier / we
C. more busy / us
D. more busy / we
2. Jane is ________ than Betty.
A. less taller
B. less tallest
C. less tall
D. not as tall
3. China is ________ country in the
world.
A. the third
largest
B. the largest
third
C. the third large
D. a third largest
4. -Which is ____ season in Beijing?
-I think it's
autumn.
best
5
．
- Which
is__________ , the sun, the moon or the earth?
-- Of course,
the moon is.
r
st
smallest
air in Beijing is
getting much _____ now than a few years ago.
A. clean
B. cleaner
C. cleanest
D.
the cleanest
7. Mobile phones are very
popular now and they are _____ than before.
A. cheap
B. cheaper
C.
cheapest
D. the cheapest
8
．
I study English
as_______as my brother.
B. harder
C. hardest
9.
Which is _____ , a bicycle or a computer?
A.
expensive
expensive
most expensive
10. The Yellow River is one of
______rivers in China.
A
long
B longer
C the longest
is the second _______student in our
class.
A. tall
B. taller
C. tallest
用括号里的词的适当形式填空。
1. Tom can jump _______(high). He jumps
_______(high) than the other boys in
his class.
2.
Janet sing _______(well) in her class. She can
sing ______(well) than her music
teacher, too.
3.
My father is ______(handsome). But my brother is
________(handsome) than him.
He is
______(handsome) in my family.
4. I have ______(many)
books in my class. But my teacher has _____(many)
books