三年级上形容词比较级的用法
1、形容词比较级：在英语中，两者进行比较，强调"一方比另一方……"，可使用"形容词比较级＋than" 结构
主语+
2、需要掌握常见的形容词比较级的形式：
tall, taller, short, shorter, old, older, young, younger, strong, stronger, heavy, heavier, long, longer, thin, thinner, big, bigger, small, smaller.
3．语法归纳（形容词比较级）
一般情况
加er small---smaller 以e结尾的词
加r large--larger
以辅音字母+y结尾的词
变y为i，再加er easy--easier
以一个辅音字母结尾的词
将这辅音字母双写再加er hot—hotter thin--thinner
形容词比较级的练习
I.Write the answers.（根据题意，写出答案。）
1.The black dog is _____ (thin) than the white dog. 2.This balloon is _____ (big) than yours. 3.My bag is _____ (heavy) than yours. 4.John is _____ (strong) than Mike. 5.I am _____ (short) than Lucy.
II.用所给词的正确形式填空，每词用一次。
Young
long
tall
heavy
old
thin
1.Monkey’s tail is
than the rabbit’s tail.
2.Dick is 11 years old.Nina is 12 years old.Dick is
than Nina.
.
3.I’m 40 kg.You’re 42 kg.I’m
than you.
4.How
are you? I’m 45 kg.
III.选择填空。
1.
How heavy are you? __________.
A.I’m 48 years old. B.I’m 48 kg.
C.I’m 48 cm.
2.
Tom is 120 cm.Jack is __________than him.
A.tall
B.taller
C.heavier
3.
How heavy is the whale? __________.
A.
It’s strong. B.It’s heavier. C.It’s 3600 kg.
4.
How __________ are you?
A.old
B.older C.taller
5.
The monkey has a __________ tail.
A.tall
B.long C.longer
6.
Jim is 40 kg.Tom is 38 kg.Tom is ________ than Jim.
A.taller
B.thinner C.heavier
7.
I am ________ than my aunt.
A.strong
B.big
C.shorter
8.
My father is ________ than my grandpa.
A.older
B.younger
C.smaller
IV.写出下列形容词的比较级形式
Tall_____
strong_____
old_____
long_____
wide ______
thin_____
heavy_____
big _____
long_____
wide ______
fat ____
heavy ______
slow _______
few____
bright______
far____
many_____
happy_____
V.连词成句。
1.
I’m, than, taller, 6 cm, you ____________________________________________ 2.
my pencil, longer, yours, is, than ______________________________________ 3
Tall, 21, I，,am, meters _______________________________________________ (二)用所给词的正确形式填空：
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 after the summer holidays.
4.Which is _________ (heavy), a hen or a chicken?
