数词分为基数词和序数词两种，基数词表数目，序数词表顺序。

1.         分数表达法：先写基数词表示分子，后写序数词表示分母，如果分子大于1时，分母要加 “s”。如：one-fourth, two-fifths, three-tenths

2.         小数表达法：小数点写作point, 小数后的数字应按其数字直接表示出来。如：18.38可写成：eighteen point three eight。

3.         年、月、时间表达法：年份用基数词，日期用序数词，时间用基数词，其顺序由小到大。

4.         英语中没有 “万”和 “亿”，要按十进位法来推算。如：35，845，可写成thirty-five thousand eight hundred and forty-five。又如：100，000，000可写成a hundred million。

5.         Hundred, thousand, million, dozen, score这些词前面如又表示具体数字的词，它们不能加 “s”,反之则须加 “s”。如：three hundred people, thousands of people。

6.         两组与数词有关的介词短语：

⑴ in+定冠词the+数词的复数形式，表示年代。如：in the 1870s或1870’s

⑵ in+物主代词+数词的复数形式，表示某人的年龄。如：in one’s thirties。

一、容易写错的序数词

one___________________    two____________________   three___________________

four___________________   five___________________     nine____________________ 

twelve_________________   twenty_________________              twenty-one______________

二、写出下列分数

1/3______________            2/3_______________          3/5_____________

1/2______________            1/4_______________          3/4______________

三、选择

1.       May is ________ month of _______ year.
A. five, the       B. fifth, a       C. the five, the     D. the fifth, a

2.       He promised to give me ________ time to finish reading the magazine.
A. two-days     B. two days      C. two day’s       D. two days’

3.       He said he had been waiting there for __________.
A. one and a half hours          B. one and half hour
C. one and the half hour         D. one and half a hour

4.       _________ of the students have handed in their papers.
A. Two-three     B. Two-third     C. Two-thirds      D. two-threes

5.       “2000” reads ________________
A. the year two thousand            B. the year of the two thousand
C. the year two thousands           D. the year of the two thousands

6.       He was born _______________

A.      on the fifth of October, nineteen ninety

B.      on the five of October, nineteen ninety

C.      in the fifth of October, nineteen ninety

D.     in the five of October, nineteen ninety

7.       India had a population of _________________.

A.      five hundred and ninety-six million      

B.      five hundred and ninety-six million people

C.      five hundred and ninety-six millions     

D.     five hundred and ninety-six millions people

8.       The medicine is to be taken ________________

A. three time a day        B. a day three times       

C. three times a day       D. a day three time

9.       The Yangtse River is __________ longest river in the world.

A. The fourth         B. fourth          C. the four          D. a four

10.   ________ of the land ________ covered with trees.

A. three fourth, is     B. three fourth, are    C. three fourths, is     D. three fourths, are

11. In our city, _____ middle school students want to work as a teacher in the future.

A. thousand                 B. thousand of　　       C. thousands of            D. two thousand of

12．The wall is ______ high.

A. three-foot      B. three foot      C. three-feet      D. three feet 

13．It’s only ______ walk from here to the station.

A. ten-minute’s    B. ten minutes’     C. ten-minutes    D. ten minutes

14．Last Sunday, my grandma had her _______ birthday.

A. ninety        B. ninetieth     C. nineties      D. ninetieth’s

15．Open your books and turn to page _______. Let’s read aloud Lesson _______.

         A. thirty…Six                                                    B. thirtieth…Six

         C. thirtieth…Sixth                                              D. thirty…Sixth

16. We have learned about _______  in recent years．

   A．several hundreds English words                  B．hundreds of English words

   C．hundred of English words                   D．several hundred English word

17. Kate is _______  girl．

   A．a eighteen-year-old               B．an eighteen-years-old

   C．a eighteen-years-old              D．an eighteen-year-old

18. The American film TITANIC will begin at two this afternoon．Shall we meet at _______  at the cinema gate？

   A．forty past one    B．half past two    C．two to two    D．fifty to two

四、词形变换

1. Winter is the _________ season and the last season. （four）

2. Our English teachers’ office is on the _______ floor.  (five)

3. My father is a businessman. He flies to America ______________ a month. (two)

4. The French artist said, “It’s my _______ (two) time to visit Shanghai. I love this city so much.”

5. Jack will come back on the ________________ of next month. (twelve)

6. The _______ story is very interesting. (one)

7. There are _______  children in the room．The _______  one from the left is my brother．(nine)

8. A UN report says that the world population will pass six billion by the end of the _______ century．(twenty-one)

 

 

 

 

数词

一、容易写错的序数词

first  second  third  fourth  fifth  ninth  twelfth  twentieth  twenty-first

二、写出下列分数

one third   two seconds   three fifths   a half/ one second    a quarter/ one fourth  

three quarters/ three fourths

三、选择

1-5 DDACA     6-10 AACAC    11-15 CABBA   16-18 BDC  

四、词形变换

1. fourth              2. fifth                3. twice              4.second  

5. twelfth            6. first                7. nine, ninth       8. twenty-first

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