数 词
什么是数词？
表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。
基数词
one
two
three
four
five
six
seven
eight
seven
six
three
zero
nine
two
one
eight
four
five
numbers
seven
six
three
zero
nine
two
one
eight
four
five
Numbers are widely used.
Hello ，
86861873 ---
Title
Number song
Let’s sing a song ！
Let’s count!
1-10
one two three four five
six seven eight nine ten

11-19
eleven twelve thirteen
forteen fifteen sixteen
seventeen eighteen nineteen
Let’s review
10
20
30
40
50
60
70
80
90
100
ten
thirty
forty
seventy
sixty
One hundred
fifty
ninety
twenty
eighty
Dragon
1-100
1
3
2
4
Look and Read
100
one hundred
1,000
one thousand
1,000,000
one million
1,000,000,000
one billion
100                
2,000              
30,000             
400,000             
5,000,000            60,000,000          700,000,000        
8,000,000,000       
90,000,000,000                    
100,000,000,000
Can you read them ?
hundred
thousand
million
billion
one hundred
one thousand
ten thousand
one hundred thousand
one million
ten million
one hundred million     
one billion
ten billion
one hundred billion
tens/ hundreds/thousands/ millions of
一百                          
 一千            
 一万                                             
十万       
一百万                       
一千 万                         
 一亿        
 十亿              
 一百亿                     一千亿
数十/百/千/百万
看谁译得快：
,
Step1:one hundred and twenty-three billion,
Step2:four hundred and fifty-six million,
Step3:seven hundred and eighty-nine thousand,
Step4:one hundred and three
103
789
456
123
,
,
625
six hundred and twenty-five
8,961
eight thousand, nine hundred
and sixty-one
95,680
ninety-five thousand, six hundred
and eighty
Look and Practice
Look and Practice
6,302,876
six million, three hundred and two thousand,
eighty hundred and seventy-six

45,690,510,810
forty-five billion ,six hundred
and ninety million, five hundred
and ten thousand ,eight hundred and ten
8
3
9
1
What is the largest / smallest 4-digit number?

9831
1389
Let’s do a practice!
face to face
number to number
one ---first
two---second
three---third
four---fourth
five---fifth
six---sixth
seven---seventh
eight---eighth
nine---ninth
ten----tenth
序数词
twenty---twentieth
thirty---thirtieth
forty---fortieth
fifty---fiftieth
sixty---sixtieth
seventy---seventieth
eighty---eightieth
ninety---ninetieth
tenth
ninth
eighth
seventh
sixth
fifth
fourth
third
second
first
ordinal
numbers
tenth
ninth
eighth
seventh
sixth
fifth
fourth
third
second
first
一、二、三，特殊记，
加th从4起，
八少“t”，九去“e”，
“ve”要用“f”替，(five, twelve)
见“y”变成“i”和“e”，词尾加上“th”，
(twenty,thirty,---ninety)
若是遇到几十几，只变个位就可以。
ordinal numbers(序数词 )
Can you write their ordinal numbers?
2
5
44
12
9
18
72
19
101
90
40
14
8
100
1000
December is the ________ month of the year.
Monday is the _______ day of the week.
English is spoken by most people as their _______
language in the USA, Great Britain, Australian,
and Canada.
The Games of the _____________ Olympic in 2008
will be held in the city of Beijing.
I’m hungry. I’ve eaten three apples. Would you
please give me a_______ one?
At the beginning of the _____________ century the
world’s population has passed 6 billion.
He got off this bus and got on a ______ one.
twelfth
second
first

twenty-ninth
fourth
twenty-first
second
Practice:
Thank You !