nine---nin th
two--- second four---four th six---six th eight---eigh th ?ten----ten th
20
twenty---twent ieth forty---fort ieth sixty---sixt ieth eighty---eight ieth
数词
LOGO
1
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。
2
基数词
one two
five
three
eight four
seven
six
3
zero one nine eight
seven six
two three four
? 1000000000 0ne billion:['bilj?n]
10
Dragon
?1-100
11
Look and Read
100
1
one hundred
1,000
2
one thousand
3 1,000,000 one million
1,000,000,000
4
one billion
12
Can you read them ?
?
70 seventy [ 'seven'ti]
?
80 eighty [ 'ei'ti]
?
90 ninety [ 'nainti ]
? 100 one hundred [ 'handred]
? 1000
one
thousand [ 'θauz?nd ]
? 1000000 one million:['milj?n]
billion million thousand
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
hundred
13
看谁译得快：
一百
one hundred
five
4
zero one two
nine numbers three
eight
four
seven six five
5
Numbers are widely used.
Hello ， 86861873 ---
6
Let's count!
? 1-10 ? one two three four five ? six seven eight nine ten
一千
one thousand
一万
ten thousand
十万
one hundred thousand
一百万
one million
一千 万
ten million
一亿
one hundred million
十亿
one billion
一百亿
ten billion
一千亿
one hundred billion
数十/百/千/百万tens/ hundreds/thousands/ millions of
16
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
17
What is the largest / smallest 4-digit number?
9831
1389
8 193
18
Let's do a practice!
face to face number to number
19
序数词
?one --- first three--- third five---fif th seven---seven th
Step4:one hundred and three
15
Look and Practice
625 six hundred and twenty-five
8,961 eight thousand, nine hundred
and sixty-one 95,680
ninety-five thousand, six hundred and eighty
14
123 ,456 , 789 , 103
Step1:one hundred and twenty-three billion,
Step2:four hundred and fifty-six million, Step3:seven hundred and eighty-nine thousand,
11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteen
7
?
1 one [ w^n ]
?
4 four: [ fo: ]
?
7 seven: [ 'seven ] 8 eight: [ eit ]
?
?
19 nineteen [ 'nain'ti:n ]
?
20 twenty: [ 'twenti ]
2 two: [ tu: ] 5 five: [ faiv ]6 six: [ siks ]
3 three: [ θri: ]
10 ten: [ ten ]
14 fourteen: [ 'fo:'ti:n ] 16 sixteen: [ 'siks'ti:n ]
9 nine: [ nain ]
?
11 eleven: [ i'leven ] 12 twelve: [ twelv ]
?
13 thirteen: [ 'θ?:'ti:n ]
?
15 fifteen: [ 'fif'ti:n ]
?
17 seventeen: [ 'seven'ti:n ]
?
18 eighteen: [ 'ei'ti:n ]
8
Let's review
ten sixty
thir ty
for ty
seventy
One hundred
eighty
fifty
nine ty
twen ty
9
?
30 thirty [ 'θe:ti ]
?
40 forty [ 'fo:ti ]
?
50 fifty [ 'fifti ]
?
60 sixty [ 'siks'ti]