数词语法讲解及练习题
数词分两类:基数词和序数词.表示数目的词叫基数词,表示须序的词叫序数词。下面本站小编为大家带来数词语法讲解及练习题，欢迎大家学习!
一、数词语法讲解
1.基数词
1)基数词一般可写成如345或three hundred and forty-five。
2)基数词一般是单数形式，但遇下列情况，常用复数：
a. 与of 短语连用，表示概数，不能与具体数目连用，如scores of people 指许多人;
b. 在一些表示"一排"或"一组"的词组里。例如：
They arrived in twos and threes. 他们三三两两的到了。
c. 表示"几十岁"。
d. 表示"年代"，用 in +the +数词复数。
e. 在乘法运算的一种表示法里，如Three fives is(are)fifteen。
2.序数词
序数词的缩写形式如first---1st second---2nd thirty-first---31st等。
3.数词的用法
1)倍数表示法
a. 主语+谓语+倍数(或分数)+ as + adj. + as。例如
I have three times as many as you. 我有你三倍那么多。
b. 主语+谓语+倍数(分数)+ the size (amount，length…) of…。例如：
The earth is 49 times the size of the moon. 地球是月球的49倍。
c. 主语+谓语+倍数(分数)+ 形容词(副词)比较级+ than…。例如：
The grain output is 8 percent higher this year than that of last year. 今年比去年粮食产量增加8%。
d. 还可以用by+倍数，表示增加多少倍。例如：
The production of grain has been increased by four times this year. 今年粮食产量增加了4倍。
2)分数表示法的构成：基数词代表分子，序数词代表分母。分子大于1时，分子的序数词用单数，分母序数词用复数。例如：
1/3 one-third; 3/37 three and three-sevenths.
二、练习题
( ) 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 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 _________.
A. five; fifth B. fifth; five C. the fifth; the five D. the fifth; five
( ) 17. ________, Coca-Cola began to enter China’s market.
A. In 1970’s B. In 1970s C. In the 1970s’ D. In the 1970s
( ) 18. There was no bus in that small town. We had a ________.
A. ten miles walk B. ten-mile walk C. ten mile’s walk D. tenth mile walk
( ) 19. Today is the first day and ________.
A. Tuesday is fourth B. Thursday is the fourth C. second is Tuesday D. a second is Thursday
( ) 20. Which room do you live in? ________.
A. The 201 Room B. Room 201 C. Room 201st D. The 201’s Room
( ) 21. How many magazines do you have? I have ________.
A. two B. both C. twice D. the second
( ) 22. Three hundred thousand one hundred and seventy means ________.
A. 3,170 B. 3,117 C. 300,170 D. 30,170
( ) 23. On May ________, ________ people traveled round the country.
A. the first, millions B. the first, millions of C. first, the millionth D. first, millions
( ) 24. ________ of them are dining at school.
A. Twelve B. Twelfth C. The twelve D. the 12th
( ) 25. It’s 7:17 is read ________.
A. seven and seventeen B. seven seven C. seven one seven D. seven seventeen
( ) 26. Four ________ two is two.
A. plus B. minus C. times D. divided by
( ) 27. Three ________ five is eight.
A. plus B. minus C. times D. divided by
( ) 28. Three ________ seven is twenty-one.
A. plus B. minus C. times D. divided by
( ) 29. Forty-two ________ seven is six.
A. plus B. minus C. times D. divided by
( ) 30. There are ________ days in a year.
A. three hundred sixty and five B. three hundred and sixty-five
C. three hundreds and sixty-five D. three hundred sixty-five
参考答案：
1. A 2. C 3. B 4. D 5. A 6. C 7. B 8. A 9. A 10. B 11. C 12. D 13. D 14. D 15. B 16. D 17. D 18. B 19. B 20. B 21. A 22. C 23. B 24. A 25. D 26. B 27. A 28. C 29. D 30. B
