英语词性-数词

[TOC]

数词

数词是指表示数目多少和顺序多少的词。

基数词

基数词是用表示数量的多少。

1-10	11-19	20-90	22-99	100-10亿
1 one	11 eleven			100 a hundred
2 two	12 twelve	20 twenty	22 twenty-two	1000 a thousand
3 three	13 thirteen	30 thirty	33 thirty-three	10000 ten thousand
4 four	14 fourteen	40 forty	44 forty-four	十万 one hundred thousand
5 five	15 fifteen	50 fifty	55 fifty-five	一百万 a million
6 six	16 sixteen	60 sixty	66 sixty-six	千万 ten million
7 seven	17 seventeen	70 serventy	77 seventy-seven	一亿 one hundred million
8 eight	18 eighteen	80 eighty	88 eighty-eight	十亿 a billion
9 nine	19 nineteen	90 ninety	99 ninety-nine
10 ten

变化规则

• 13-19 在个位数的词后加-teen
• 20-90 整十数，在个位数后加-ty
• 十位数与个位数之间用"-"连接，百位数与十位数之间用"and"连接，千位数与百位数之间用","连接: 7456: seven thousand , four hundred and fifty-six 或 seventy-four hundred and fifty-six

序数词

序数词表示排列的顺序。也就是“第几”。

1-10	11-19	22-99	20-100
1 first	11 eleventh
2 second	12 twelfth	22 twenty-second	20 twentieth
3 third	13 thirteenth	33 thirty-third	30 thirtieth
4 fourth	14 fouteenth	44 forty-fourth	40 fortieth
5 fifth	15 fifteenth	55 fifty-fifth	50 fiftieth
6 sixth	16 sixteenth	66 sixty-sixth	60 sixtieth
7 seventh	17 seventeenth	77 seventy-seventh	70 seventieth
8 eighth	18 eighteenth	88 eighty-eight	80 eightieth
9 ninth	19 nineteenth	99 ninety-ninth	90 ninetieth
10 tenth			100 hundredth

分数

英语中的分数是有基数词和序数词构成，基数词代表分子，序数词代表坟墓，分子非1以外序数词要使用复数形式（后加-s）。

1/3: one third

1/4: one fourth

2/3: two thirds

3/4: three fourths 或 three quarters

1/2: 只能是 a half 或 one half

小数

6.4 six point four

0.9 zero point nine

0.03 zero point zero three

12.89 twelve point eight nine

日期时间

1、年份

2011年:

twenty eleven ( 推荐 ) 或 two thousand and eleven 或 two thousand and eleven

2、年月日

2011.10.17: October seventeenth , twenty eleven

3、时间

3点钟: three o'clock

5点半: five thirty / half past five

9点45分: nine forty-five / a quarter to ten

上午7点20分: seven twenty a.m.

4、其他

电话号码850324: eight five zero three two four

20%: twenty percent

4+3=7: four and/plus three is seven

十亿: one thousand million 或 one billion

5、惯用法

There are thousands of apples in our garden. 在我家花园有好几千个苹果。

in one's teens. 在某人十几岁时

In one's thirties 在某人三十几岁时

日期

5月10日:

the tenth of may 或 May the tenth 或 May 10th

帝王第几世

Charles the First s

其他

1、做形容词

Sunday is the first day of the week. 星期日是一周的第一天。

2、做名词

The first is better than this. 第一个比这个好。

3、做副词

He first went to Tianjin , and then to Beijing. 他先去天津，再去北京。

4、惯用语

I found English difficult at first. 起初我觉得英语很难。

You need a second pair of shoes. 你需要另一双鞋。

I like English from the first. 我从一开始就喜欢英语。

If you want me to trust you , first of all , be honest. 如果我信任你，首先，你要诚实。