数词

数词"/>

数词

数词

基数词

0-10
zero
one
two
three
four
five
six
seven
eight
nine10-20
ten
eleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen20-90
twenty
thirty
forty
fifty
sixty
seventy
eighty
ninety几十几 各位各位十位用十位
twenty one
ninety nine英文的划分规则 三位一划分
one 一
ten 十
hundred 百
thousand 千  倒数第一个逗号
ten thousand 万
one hundred thousand 十万
million 百万  倒数第二个逗号
ten million 千万
one hundred million  亿
billion  十亿 倒数第三个逗号
trillion 万亿100-999
one hundred
one hundred and one
nine hundred and ninrty nine1000-9999
one thousand
one thousand and one
nine thousand nine hundred and ninety nine使用的特点
做数词的时候，前面可以加数词，但是不能加s 只能是 ten thousand
如果数词用来做名词的时候，意思是好几。。。的，前面可以加 some many several这种词或者加数词
hundreds of(好几百) five hundred of (五百左右)  many millions of (数百万)用法
表示年龄
I'm twenty表示编号
Room one 0 one表示年代
nineteen forty's表示月份
twenty thousand and eight 2008
nineteen forty-nine 1949时间
six o'clock = six on the dot 6:00
6:05 five past six
6:15 a quarter past six
6:45 a quarter to seven时区 time zones  上午 ante meridiem = a.m  下午 post meridiem = p.m24小时制 
21:00 twenty one hours
21:20 twenty one twenty电话
647-300-2516 six four seven three double 0 two five one six讲价格通常省略dollars and cents表示小数(经常省略zero，或者读成o)
0.5 = point five
0.05 = point 0 five连个一样的数字，三个一样的数字
007 = double 0 seven
boeing 777 = boeing trip seven

序数词

0-9
zeroth
first
second
third
fourth
fifth
sixth
seventh
eighth
ninth10-19
tenth
eleventh
twelfth
thirteenth
fourteenth
fiftenth
sixteenth
seventeenth
eighteenth
nineteenth20-90
twentieth
thirtieth
fortieth
fiftieth
sixtieth
seventieth
eightieth
ninetieth序数词前面加a/an表示再一，序数词前面加the表示顺序
We read the book a third times 我们读了三篇这本书
The second door of the romm is closed 房间的第二扇们是关的