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数词归纳总结附视频

数词的用法

目录

    数词的用法

    1、分类:

    2、基数词:

    3、序数词:

    4、数词的用法:

      数词的用法讲解视频

      1、分类:

      数词有基数词和序数词两种。英语的数词可以作句子的主语、宾语、表语和定语。

      2、基数词:

      表示数目的词叫基数词。

      1、 英语中常用的基数词有:

      1

      2

      3

      4

      5

      6

      7

      8

      9

      10

      11

      12

      one

      two

      three

      four

      five

      six

      seven

      eight

      nine

      ten

      eleven

      twelve

      13

      14

      15

      16

      17

      18

      19

      thirteen

      fourteen

      fifteen

      sixteen

      seventeen

      eighteen

      nineteen

      20

      30

      40

      50

      60

      70

      80

      90

      100

      twenty

      thirty

      forty

      fifty

      sixty

      seventy

      eighty

      ninety

      one(a) hundred

      23

      35

      101

      twenty-three

      thirty-five

      one hundred and one

      1000→one(a) thousand,10000→ ten thousand,100000→one hundred thousand ,1000000→one million,10000000→ten million, 100000000→one hundred million,

      108→one hundred and eight, 146→one hundred and forty-six, 500→five hundred , 1001→one thousand and one, 1813→one thousand eight hundred and thirteen.  

      2、[注]:(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,倒数第一个逗号之前要用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)

      3、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。

      2、序数词如下:

      1st

      2nd

      3rd

      4th

      5th

      6th

      7th

      8th

      9th

      10th

      11th

      12th

      ※first

      ※second

      ※third

      fourth

      fifth

      sixth

      seventh

      eighth

      ninth

      tenth

      eleventh

      twelfth

      13th

      14th

      15th

      16th

      17th

      18th

      19th

      thirteenth

      fourteenth

      fifteenth

      sixteenth

      seventeenth

      eighteenth

      nineteenth

      20th

      30th

      40th

      50th

      60th

      70th

      80th

      90th

      100th

      twentieth

      thirtieth

      fortieth

      fiftieth

      sixtieth

      seventieth

      eightieth

      ninetieth

      one undredth

      21st

      22nd

      23rd

      35th

      101st

      twenty-first

      twenty-second

      twenty-third

      thirty-fifth

      one hundred and first

      1000th→one thousandth,  1000000th →one millionth., 第703→the seven hundred and third,   

      第5480→the five thousand four hundred and eightieth.

      3、注:(1)两位以上的序数词仅个位数部分用序数词,其余部分仍用基数词。如:thirty-sixth,

      (2) 使用序数词时一般加定冠词the. 如:I’m in the third grade.

      (3) 序数词作“几分之几”讲时,有复数形式。如:1/5→one fifth ; 2/3→ two thirds ; 4/7→ four sevenths ; 1/2→ a half ; 1/4→a quarter ; 3/4→ three quarters ; 50%→ fifty hundredths ( fifty per cent).

      4、数词的用法:

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

      2、表示日期: 12月1日: Dec.1st或the first of December;2002年11月8日: Nov. 8th, 2002.

      3、表示时刻: 5:15→ five fifteen或a quarter past five ; 8:30→ eight thirty或half past eight ; 10:45→ ten forty-five或a quarter to eleven.

      4、表示编号:Room 105→Room one 0 five; Bus No.13→Bus Number Thirteen; P.5→Page Five; Tel.No.7658659→Telephone 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: 1/2→half, 半小时→half an hour, 1.5小时→one and a half hours或one hour and a half.  

      7、序数词前面加the时,表示顺序,加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?)

      数词的用法讲解视频

      数词的用法讲解

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