(完整)初中英语数词专项练习
钓鱼记作文-
数
词
数词分
为基数词和序数词两种。表示数目或数量多少的词叫基数词;表示数目顺序的词
叫序数词
。
一
.
基数词
1.
基数词就注意以下几点:
(
1
)几十几的基数词的十位数与个位数之间要用连字符
“
-
”
连接。如:
eighty-five 85
twenty-six 26
(
2
)三位数的基数词须在百位和十位(若无十位则和个位)之间用
and
连接。如:
three hundred and sixty-five 365
two hundred and six 206
(
3
)基数词的复数形式。当基数词
hundred, thousand,
million, billion
等词前有具体数
词或
several
修饰时,必须用单数。如:
several hundred
year’s
ago
几百年前
two
thousand students
两千个学生
2.
基数词的特殊用法:
(
1
)表示
“
几十年代
”
< br>或
“
几十岁
”
< br>时,用逢十的基数词的复数形式。如:
in the
1990’s
20
世纪
90
年代
in
o
ne’s
twenties
在某人
20
多岁时
(
2
)用在习语中。如:
in twos and
threes
三三两两地
二
.
序数词
序数词应注意的几点事项:
1.
多位数的基数词变成序数词时,只需将末位基数词变
成序数词,前边的基数词不变。
如:
forty-two 42 forty-
second
第
42
nine-hundred 900 nine-
hundredth
第
900
2.
当序数词用阿拉伯数字表示时,必须在数字后加上序
数词的最后两个字母。如:
21st
第
21
32nd
第
32
3.
序数词前一般要用定冠词
t
he
,如果序数词前用
a
或
an
时,则表示
“
又一;
再一
”
(没
有具体范围的限制)
。如:
Though he had failed twice, he wanted to try a
third time.
尽管他已失败了两次,他还想再试一次。
The little monkey had
had three apples, and he wanted to eat a fourth
one.
那只小猴子已经
吃了
3
个苹果,他还想再吃一个。
三
.
分数和百分数
1.
分数
(
1
)分数的分子用基数词,分母用序数词。如:
one
fifth
五分之一
one tenth
十分之一
(
2
)当分子大于
1
时,分母用序数词的
复数。如:
two
thirds
三分之二
five
eighths
八分之五
(
3
)当分子是
1
时,可以用
one
也可以用
a
。如:
a second = one second
a third = one third
(
4
)当分母是
2
和
4
时,分别可以用
half
和
qua
rter
代替。如:
1
a
half
二分之一
three quarters
四分之三
2.
百分数
百分数用
percent
表示。如:<
/p>
forty
percent
百分之四十
three
percent
百分之三
3.
分数、百分数与主谓一致
分数、
百分数的考查往往和主谓一致相联系。
当分数、
百分数修饰
可数名词的复数时,
谓语动词用复数形式;当分数、百分数修饰不可数名词时,谓语动词
用单数形式。如:
Eighty percent of the students in our school come
from Henan.
我们学校百分之八十的学生来自河南。
Three fourths of the
students in my class are interested in English.
我们班四分之三的学生对英语感兴趣。
Two thirds of the water
on the earth is sea water.
地球上三分之二的水是海水。
四
.
倍数的表示法
1.
表示
“
几倍大小(长短;数量)
”
,由
“
倍数
+ the
size
(
length, amount...
)
”
结构组成。
如:
The earth is
forth-nine times the size of the moon.
2.
表示
“……
比
……
大几倍
”
,由
“
倍数
+
形容词(副词)比较级
+ than +
被比较部分
”
结构
组成。如:
This box is three
times bigger than that one.
3.
表示
“……
是
……
倍
”
< br>,由
“
倍数
+ as
+
形容词
+ as +
被比较部分
p>
”
结构组成。如:
Our factory is twice as
big as theirs.
2
数
词
(
) 1. Lincoln was born on ________.
A. February 12, 1809
B. 1809, February 12
C.
1809, 12 February
D. February 1809,12
(
) 2. A _______ boy
can sing the English song very well.
A. ten-year-old
B. ten
years old
C. ten-year-old
D. fifth years old
(
) 3. An hour later, _____ minister was
sent to see the “magic cloth” woven by those two
men.
A. two
B.
the second
C. the two
D. second
(
) 4. Abraham Lincoln was _______
President of the United States.
A. 16
B. the 16
C. 16th
D. the 16th
(
) 5. Do you think
there is any room for us ________ ?
A. two
B. the two
C. second
D. the second
(
) 6. --How many
students are there in your class?
--________.
A.
Twenty nine
B. Thirty and two
C. Forty-five
D. fifties
(
) 7. Which number is
wrong? _______.
A. Ninety
B. Ninteen
C. Ninth
D. Nineteenth
(
) 8. The People's Liberation Army was
founded _______.
A.
on
August
1,
1927
B.
in
1927,
1
August
C.
on
August
1st,
1927
D.
in
August
1,
1927
(
) 9.
The number 4,123 is read _______.
A.
four thousand one
hundred and twenty-three
B. four thousand and one hundred
twenty-three
C.
four thousand and a hundred and twenty-
three
D. four
thousands a hundred and twenty-three
(
) 10. The old professor still works
hard though he is _________.
A. in his sixty
B. in his
sixties
C. in sixties
D. in the sixty
(
) 11. This classroom is ________ ours.
A. three times big as B. as three times
big as
C. three times as big as
D. as big three times as
(
) 12. The basketball team of our school
ranks ________ in the match.
A. three
B. third
C. the three
D. the
third
(
) 13. Which is
the car that he drives? It's ________.
A. fifty two
B. the
fifty-two cars
C. the car fifty four
D. the fifty-fourth car
(
) 14. Which of the following is wrong?
________.
A. He is a
fifteen-year-old boy.
B. He is
at the age of 15.
C. He is
a boy of 15.
D. He is fifteen year old.
(
) 15. Our school is not very big. There
are only ________ students.
A. nine hundreds of
B.
nine hundred
C. nine hundreds
D. nine hundred of
(
) 16. --How many new words are there in
________ lesson?
-- There are
only _________.
3