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seven fifteen,
eleven thirty,
nine twenty
2. 序数词的用法
（1）序数词主要用作定语，前面要加定冠词，例如：
The first truck is carrying a foot baskets．
John lives on the fifteenth floor．
（2）序数词有时前面可加不定冠词来表示“再一”，“又一”这样的意思，例如：
We‘ll have to do it a second time．
Shall I ask him a third time？
When I sat down，a fourth man rose to speak．
（3）由几个序数词和基数词在拼写时不对应，很容易写错，应特别注意。它们是：one-first, two-second, three-third, five-fifth, eight-eighth, nine-ninth, twelve-twelfth。
（4）表示年，月，日时， 年用基数词表示，日用序数词表示。例如：
1949年十月一日读作: October (the) first, nineteen sixty
2004年九月十日读作：September (the) tenth, two thousand and four
（5）表示分数时，分子用基数词表示，分母用序数词表示。分子大于1时，分母加-s。例如：
three fourths,
one second,
two fifths
（6）序数词有时用缩写形式：
first→1st second→2nd
third→3rd fourth→4th
twenty-second→22nd
【实例解析】
1. (2004年上海市徐汇区中考试题)
About ________ students in our class can describe that place in English.
A. three-fifths B. three-fifth C. third-five D. third-fifths
答案：A。该题考查的是分数的表示法。分子用基数词表示，分母用序数词表示。分子大于1时，分母应加-s，因此应选A。
2. (2004年河北省中考试题)
Nine _______ pounds a week? That’s very good.
A. hundred of B. hundreds of
C. hundreds D. hundred
答案：D。该题考查的是数词的用法。Nine hundred是一个具体的数量，这是数词不能用复数形式，后面也不能加of。所以应选D。
3. (2004年北京市海淀区中考试题)
We often have sports after class, and I like to play _______ basketball.
A. a B. an C. the D. 不填
答案：D。该题考查的是冠词的用法。球类运动之前不加冠词，因此应选D。
4. (2004年江西省中考试题)
This is _______ song I’ve told you about. Isn’t it _______ beautiful one?
A. the; the B. a; a C. the; a D. a; the
答案：C。该题考查的是冠词的用法。第一个空是特指，特指我给你说过的那首歌，第二个空是表示某一个类别。所以应选C。
【中考演练】
一. .单项填空
1. This morning I had ________ egg and a bottle of milk for my breakfast.
A. an B. a C. the D./
2. -What’s the matter with you?
-I caught ________ bad cold and had to stay in ________.
A. a;/ B. a; the C. a; a D. the; the
3. -Have you seen _______ pen? I left it here this morning.
-Is it ________ black one? I think I saw it somewhere.
A. a; the B. the; the C. the; a D. a; a
4. _______ sun is shining brightly.
A. A B. An C. The D. /
5. There is _______ “h” in the word hour.
A. a B. the C. an D./
6. Did you enjoy your stay in Xian?
Yes. I had _______ wonderful time.
A. a B. an C. the D. /
7. ______ sun is bigger than _______ earth.
A. A; the B. A; an C. The; an D. The; the
8. There is _______ apple and some pears on the table.
A. the B./ C. a D. an
9. David has _______ cat. It’s very nice.
A. a B. an C. the D./
10. I’m reading _______ novel. It is _______ interesting story.
A. a; an B. a; a C. the; the D. /; an
11. It is said that SARS has killed more than ________ people worldwide.
A. three hundreds B. three hundreds’
C. three hundred’s D. three hundred
12. -How many workers are there in your factory?
-There are two __________.
A. hundreds B. hundred C. hundred of D. hundreds of
13. -Which is the smallest number of the four?
-_______________.
A. Two-thirds B. A half C. A quarter D. Three-fourths
14. -What do you think of a war, Li Ming?
-I’ve no idea. But it’s a fact that _______ people had to leave their hometown during the War on Iraq.
A. three thousands B. thousand of
C. thousands of D. several thousands
15. We all think that the _______ century will bring us more hopes.
A. twenty-first B. twentieth-first
C. twenty-one D. twentieth-one
