英语语法大攻克--数词讲解

数词讲解与练习

数词分为基数词和序数词。表示事物数目的词称为基数词，表示事物顺序的词称为序数词。

1.基数词(1000以内的基数词的读法

365—three hundred and sixty-five 505—five hundred and five

2.基数词变序数词的方法：

eg. one—first two—second three—third

eight—eighth nine—ninth twelve—twelfth

twenty—twentieth twenty-one –-twenty-first

3.数词的应用：

A、时刻表达法：

a. 整点：基数词+ o’clock

eg. It’s eight o’clock now.

b. 几点几分：

1．直接表达法：先小时后分eg. 3:25 three twenty-five

2.间接表达法：先分后小时

1)(<30分钟)用past ：分钟past 小时

eg. 3:25 twenty-five (minutes) past three

2) (>30分钟)用to：(60-分钟数) to (小时数+1)

eg. 3:35 twenty-five (minutes) to four

3) 30分钟= half 15分钟= a quarter

eg. 3:30 three thirty = half past three

3:15 three fifteen = a quarter past three.

3:45 three forty-five = a quarter to four

B、日期表达法：月日，年（或日月年）

1949年10月1日:

October1st , nineteen forty-nine

=the first of October, nineteen forty-nine

2000年: the year two thousand

=twenty hundred

2001年: twenty o one

3月1日: March the first = the first of March

C、表编号：

第207房间：Room 207

第五课：Lesson 5 = the fifth lesson

D、序数词与不定冠词(a; an)连用表―又一；再一‖

eg. You’ve done it three times. Why not try a fourth time?

E、分数的表达：分子（基数）、分母（序数）

eg. one third 三分之一two thirds 三分之二

注意：1.分子超过1时，分母加s

2.含分数的短语作主语由分数后的词决定谓语

eg.1)One third of the students are girls. 2)One third of the milk is mine.

3.分数的特殊形式

1)one third = a third

2)one fourth = a quarter three fourths = three quarters

3)one second = a half

F、一些数词的复数+ of表约数：

hundreds of ; thousands of ; millions of

练习

( )1.If you go out at night, you’ll be able to see ____ starts.

A. thousands of

B. thousand of

C. nine thousands of

D. thousands

( )2.Monday is ___ day of the week.

A. first

B. the first

C. the second

D. second

( )3.You’ve done it twice. Why not try ____ time?

A. third

B. the third

C. a third

D. once

( )4.Which is the____ month? It’s September.

A. nine

B. nineth

C. ninth

D. ninety

( )5.December is ___ of the year.

A. the twelfth months

B. the twelfth month

C. the twelveth months

D. twelve months

( )6.There are ___ floors in the building and he lives on the ____ floor.

A. eighteen, fifteen

B. eighteenth, fifteenth

C. eighteen, fiveteen

D. eighteen, fifteenth

( )7.I was born ___, 1982.

A. on June 2rd

B. in June 2nd

C. on June two

D. on June 2

( )8.It’s ____ from our home to the zoo.

A. two and a half hours’ walk

B. a half and two hours walk

C. two hours and a half hour’s walk

D. two and a half hour’s walk

( )9.What time is it now? It’s ___ to six.

A. quarter

B. a quarter

C. quarto C. a quarto

( )10.Will you be back in ____ ?

A. one or two minutes

B. one minute or two

C. two minutes or one

D. two or one minute

( )11.Mary’s uncle went to France ____.

A. in his thirties

B. on his thirties

C. at his thirties

D. about his thirties

( )12.The headmaster wrote a ___ report.

A. two thousand words

B.two-thousand-words

C. two-thousand words

D. two-thousand-word

( )13.____of the apples in the fruit bowl are soft and sweet.

A. Two-third

B. Second-third

C. Two-thirds

D. Second-thirds

( )14.We have learned about ____ these days.

A. several hundreds English words

B. hundreds of English words

C. hundred of English words

D. several hundred English word

( )15.A UN report says that the word population will pass six billion by the end of ____ century.

A. twentieth

B. twenty

C. the twentieth

D. the twentyth