英语-数词

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一、基数词

基数词表示数量

one

two

three

four

five

six

seven

eight

nine

ten

eleven

twelve

thirteen

fourteen

fifteen

sixteen

seventeen

eighteen

nineteen

twenty

thirty

forty

fifty

sixty

seventy

eighty

ninety

twenty-one

thirty-eight

fifty-three

a hundred

a thousand

a million

a billion

first

second

third

fourth

fifth

sixth

seventh

eighth

ninth

tenth

eleventh

twelfth

thirteenth

fourteenth

fifteenth

sixteenth

seventeenth

eighteenth

nineteenth

 

twentieth

thirtieth

fortieth

fiftieth

sixtieth

seventieth

eightieth

ninetieth

hundredth

twenty-first

ninety-ninty

a hundred and fifty-third

注意:表示具体数目的hundren, thousand, million等均不用复数,百位数和十位数之间通常加连词and;十位数与个位数之间要加连字符。

二、序数词

序数词的缩写形式:由阿拉伯数字后加上序数词的最后两个字母。

first---1st     second --- 2nd    tenth --- 10th

三、时间和年月日表示法

1、时间均用基数词表示:

1)顺读法,先说“点钟”,再说“分钟”,如:

   2:15   two fifteen      6:20    six twenty

2)逆读法

30分钟以内:“分钟数+ past +钟点数”,如:

   3:20 --- twenty past three     2:10 --- ten past two

半小时用 half15分钟用 a quarter :

   2:15 --- a quarter past two    3:30 --- half past three

30分钟以外要用:“分钟数+ to + 下一个钟点”,如:

   4:35 --- twenty-five to five    2:55 --- five to three

2)年月日表示法

   年份读法;月日读法;年月日一起读法。

四、分数的表示法

当分数中表示分子的数只含个位数时一般采用“分子(用基数词)+分母(用序数词)”表示。(分子大于1时,分母序数词用复数)如:

one-third;  two-thirds;  three twenty-seconds

五、数词与名词的搭配

1)数词与名词连用时,它们的次序是“名词+基数词”

   Lesson 15;   Room 1506 或者用the + 序数词 + 名词”

   The Fifteenth Lesson       the third floor

2数词与小时的搭配

   two hours and a half      three hours

   half an hour

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