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seven fifteen,
eleven thirty,
nine twenty
2. 序數(shù)詞的用法
（1）序數(shù)詞主要用作定語，前面要加定冠詞，例如：
The first truck is carrying a foot baskets．
John lives on the fifteenth floor．
（2）序數(shù)詞有時(shí)前面可加不定冠詞來表示“再一”，“又一”這樣的意思，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）由幾個(gè)序數(shù)詞和基數(shù)詞在拼寫時(shí)不對應(yīng)，很容易寫錯(cuò)，應(yīng)特別注意。它們是：one-first, two-second, three-third, five-fifth, eight-eighth, nine-ninth, twelve-twelfth。
（4）表示年，月，日時(shí)， 年用基數(shù)詞表示，日用序數(shù)詞表示。例如：
1949年十月一日讀作: October (the) first, nineteen sixty
2004年九月十日讀作：September (the) tenth, two thousand and four
（5）表示分?jǐn)?shù)時(shí)，分子用基數(shù)詞表示，分母用序數(shù)詞表示。分子大于1時(shí)，分母加-s。例如：
three fourths,
one second,
two fifths
（6）序數(shù)詞有時(shí)用縮寫形式：
first→1st second→2nd
third→3rd fourth→4th
twenty-second→22nd
【實(shí)例解析】
1. (2004年上海市徐匯區(qū)中考試題)
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。該題考查的是分?jǐn)?shù)的表示法。分子用基數(shù)詞表示，分母用序數(shù)詞表示。分子大于1時(shí)，分母應(yīng)加-s，因此應(yīng)選A。
2. (2004年河北省中考試題)
Nine _______ pounds a week? That’s very good.
A. hundred of B. hundreds of
C. hundreds D. hundred
答案：D。該題考查的是數(shù)詞的用法。Nine hundred是一個(gè)具體的數(shù)量，這是數(shù)詞不能用復(fù)數(shù)形式，后面也不能加of。所以應(yīng)選D。
3. (2004年北京市海淀區(qū)中考試題)
We often have sports after class, and I like to play _______ basketball.
A. a B. an C. the D. 不填
答案：D。該題考查的是冠詞的用法。球類運(yùn)動(dòng)之前不加冠詞，因此應(yīng)選D。
4. (2004年江西省中考試題)
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。該題考查的是冠詞的用法。第一個(gè)空是特指，特指我給你說過的那首歌，第二個(gè)空是表示某一個(gè)類別。所以應(yīng)選C。
【中考演練】
一. .單項(xiàng)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
