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数词的用法有哪些

来源:南京美联英语时间:2019/7/31 10:08:21

英语当中的数词分别有基数词和序数词,下面小编为您介绍数词的用法

英语中常用的基数词有:

1

2

3

4

5

6

7

8

9

10

one

two

three

four

five

six

seven

eight

nine

ten

11

12

13

14

15

16

17

18

19

20

eleven

twelve

thirteen

fourteen

fifteen

sixteen

seventeen

eighteen

nineteen

twenty

21

22

23

30

31

32

33

40

twenty-one

twenty-two

twenty-three

thirty

thirty-one

thirty-two

thirty- three

forty

41

42

50

60

70

80

90

100

101

forty-one

forty-two

fifty

sixty

seventy

eighty

ninety

one(a) hundred

one hundred and one

 

   (1)百位与十位之间要加and;十万位和万位,亿位和千万位之间通常也要加and(2)英语用千、百万等单位计数,大数字从右向左看, 每隔三位划一逗号,倒数个逗号之前要用thousand,倒数第二个逗号之前要用million,倒数第三的逗号之前要用billion表示。(3) hundred thousand million作数词时,不用复数,前面可以加上one, two, …等其它数词。用作名词时复数表示“成…上…”,后面必须要有of,前面可以加上some,many,several等词。如:five hundred(五百), hundreds of(成百上千的), ten thousand(一万), thousands of(成千上万的), millions of(成百万的)

序数词:表示顺序的数词叫序数词

1英语的序数词基本变法:(1) 一般在基数词后加th,(2)-ve结尾的改为-fth,(3)-ty结尾的改为-tieth (4)熟记特殊词。

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

10th

first

second

third

fourth

fifth

sixth

seventh

eighth

ninth

tenth

11th

12th

13th

14th

15th

16th

17th

18th

19th

20th

eleventh

twelfth

thirteenth

fourteenth

fifteenth

sixteenth

seventeenth

eighteenth

nineteenth

twentieth

21st

22nd

23rd

30th

31st

35th

40th

twenty-first

twenty-second

twenty-third

thirtieth

thirty- first

thirty-fifth

fortieth

50th

60th

70th

80th

90th

100th

101st

fiftieth

sixtieth

seventieth

eightieth

ninetieth

one undredth

one hundred and first

 

数词的用法:

1、表示年份:2002: twenty thousand and two ; 1976 : nineteen seventy-six.

2、表示日期: 121: Dec.1stthe first of December2002118: Nov. 8th, 2002.

3、表示时刻: 515five fifteena quarter past five ;

830 eight thirtyhalf past eight ;

1045 ten forty-fivea quarter to eleven.

4、表示编号:Room 105Room one 0 five;

Bus No.13Bus Number Thirteen;

P.5Page Five;

Tel.No.7658659Telephone Number seven-six-five-eight-six-five-nine

5、小数的读法:5.7 five point seven,  0.16 zero point one six.

6、“半”的表达: 1/2half, 半小时half an hour, 1.5小时one and a half hoursone hour and a half.  

7序数词前面加the,表示顺序,a/an时表示“再一、又一”。

如:The third lesson is rather difficult.(第三课相当难)

  Shall we read the text a third time?(我们把课文读第三遍,好吗?)

 

 

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