1. 分基数词（cardinal numbers）和序数词（ordinal numbers）
Grammar
数 词
分基数词（cardinal numbers）和序数词（ordinal numbers）
一、基数词（cardinal numbers）
1~12
one two three four five six seven eight nine ten eleven twelve
13~ teen
thirteen fourteen fifteen sixteen seventeen eighteen nineteen
20~ ty
twenty thirty forty fifty sixty seventy eighty ninety
21~99
twenty-one thirty-two forty-three ninety-nine
one hundred two hundred and one one hundred and twenty-one
1, , , ,000
one thousand one thousand five hundred and thirty-two
ten thousand one hundred thousand
1,000, ,000,000, one million one billion

2. 二、序数词（ordinal numbers）
Grammar
二、序数词（ordinal numbers）
first (1st) second (2nd) third (3rd)
4 ~ 基数词后加 -th
fourth fifth sixth seventh eighth ninth tenth eleventh
twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth
20 ~ 变 -ty 为 -tieth
twentieth thirtieth ……. Ninetieth
21 ~ 十位数用基数词，个位数用序数词
twenty-first fifty-fourth ……. ninety-ninth
, ,000, ,000,000, 直接加 -th
one hundredth one thousandth
one millionth one billionth
, 只在个位数用序数词，其它用基数词。
two hundred and eight
one thousand nine hundred and thirty-seventh

3. 练习
用英语读出下列数字：
，098
4， ，137
425， ，306，527
2，032， ，441，000
900，745， ，280，532，866
one hundred and one
two hundred and twenty-six
seven hundred and five
one thousand and ninety-eight
four thousand, five hundred and sixty-eight
seventy-five thousand,one hundred and thirty-seven
four hundred and twenty-five thousand, seven hundred and twelve
one million, three hundred and six thousand, five hundred and twenty-seven
two million, thirty-two thousand, six hundred and seventy-eight
thirty-six million, four hundred and forty-one thousand
nine hundred million, seven hundred and forty-five thousand, and twenty-two
one billion, two hundred and eighty million, five hundred and thirty-two thousand, eight hundred and sixty-six

4. 练习 用基数词或序数词填空： 1. The ___________ day of the year is New Year’s Day.
2. There’s only __________ Sunday in a week.
3. July’s the ____________ month of the year.
4. Three times four equals ____________.
5. The number 195 has three digits.
The _________ digit is a ‘nine’ and the ________digit is a ‘five’.
6. Next Wednesday is my eleventh birthday.
That means I’ll be ___________ years old by then.
first
one
seventh
twelve
second
third
eleven

5. 练习 7. I’ve just done the fourth exercise, and am now working on
8. Teacher: Have you any questions about the _________ chapter?
Student: No. I think chapter six is quite simple.
9. Teacher: What’s five plus ten?
Student: It’s _____________,
10. Manager: How many tickets were sold today?
Clerk: One thousand.
Manager: Who sold the last one?
I mean the ________________ ticket.
Clerk: Judy did.
five
sixth
fifteen
one thousandth

6. 练习 Write down the noun phrases using numbers given in brackets.
e.g. bag (2) two bags
girl (8) eight girls
bike (3)__________________ box (2) __________________
bus (6) __________________ carrot (4) ________________
case (2) __________________ child (9) ________________
factory (12) ______________ foot (2) _________________
glass (4) _________________ house (5) ________________
knife (10) ________________ potato (15) _______________
radio (8) _________________ scarf (7) _________________
watch (6) ________________ woman (20) _______________
three bikes
two boxes
six buses
four carrots
two cases
nine children
twelve factories
two feet
four glasses
five houses
ten knives
fifteen potatoes
eight radios
seven scarves
six watches
twenty women