(共34张PPT)
7B Unit 1 Grammar B
numbers(数词)
We use cardinal numbers almost every day.
No.11 Bus
No.28 Shangwuneihuan Road
No.21 player
Page 28
10 yuan
表示班级、年级、学校人数等;(Class 2 , Grade 7 )
表示城市和国家的人口数量等;
表示电话号码、车牌号、门牌号、价格、年份等。
基数词(表个数)的用法
Let’s read from o to 9.
0 1 2 3 4 5
zero one two three four five
6 7 8 9
six seven eight nine
Can you read the phone numbers
three,six,five,eight;six,three,nine,o
eight,five,two,six;seven,three,nine,five
five,five,five,three;two,nine,o,one
Millie 5553 2901
__________________________________
Amy 3658 6390 __________________________________
Kitty 8526 7395
__________________________________
Let’s count from 10 to 100.
13 14 15
11 12
16 17 18 19
eleven twelve
thirteen fourteen fifteen
sixteen seventeen eighteen nineteen
20 30 40 50
60 70 80 90
21 22 23
100
twenty thirty forty fifty
sixty seventy eighty ninety
twenty-one twenty-two twenty-three
one hundred
Can you read the numbers
102 (one hundred and two)
(four hundred and twenty-nine)
(thirteen)
(forty-five)
(thirty-three)
(eighty-two)
(ninety-one)
(fourteen)
13
45
33
82
91
14
429
Can you read the numbers
911
715
422
554
218
nine hundred and eleven
seven hundred and fifteen
four hundred and twenty-two
five hundred and fifty-four
two hundred and eighteen
特别用法:hundred前面有数词,则不用其复数
基数词很容易,
0至12词各异,单独记。
13至19,以teen结尾不要丢;
20至90,整十后面有个ty;
几十几,也容易:
先说几十,再说几,中间短杠“-”加上去。
hundred是一百,
百内数字记心怀。
几百几,挺容易:
先说几百,再说几,中间and加上去。
thousand是一千,
千内数字记心间。
10,000
ten thousand
1,000
one thousand
1,000,000
one million
100,000
one hundred thousand
180
1,815
91,000
260,000
8,000,000
13,000,000
one hundred and eighty
one thousand eight hundred and fifteen
ninety-one thousand
two hundred and sixty thousand
eight million
thirteen million
9 3 0 5 4 0 0 6 0 7
,
,
,
billion
million
thousand
nine billion three hundred and five million four hundred thousand six hundred and seven
hundred
4. hundred, thousand, million的
特别用法:
前面有数词,则不用其复数,如
two hundred, five thousand等。表示上百、上千、上百万时,用hundreds of, thousands of , millions of 来表示。
1. People from about 180 countries and areas live in New York.
2. The CN Tower is 1,815 feet tall.
3. Red Square in Moscow is about 91,000 square metres in size.
4. France has an area of over 260,000 square miles.
5. There are about 8,000,000 people living in London.
6. Tokyo, the capital of Japan, has over 13,000,000 people.
Learn about different countries
How do we say it
4,056= ___ thousand and ______
23,813= ___________ thousand,
__________________
567,110= ______________________ thousand,__________________
6,425,200= __ million, _________________
_________ thousand, __________
four fifty-six
twenty-three eight hundred and thirteen
five hundred and sixty-seven one hundred and ten
six four hundred and twenty-five two hundred
How do we say it
There are 1280 students in our school.
There are 230100 books in the library.
The house is 1509998 yuan.
,
,
one million, five hundred and nine thousand, nine hundred and ninety-eight
two hundred and thirty thousand, one hundred
, ,
one thousand, two hundred and eighty
Find the right numbers.
__ 1. ten thousand, two hundred and six
__ 2. one hundred and twenty-six
__ 3. one hundred thousand, two hundred and sixty
__ 4. twelve thousand and twenty-six
__ 5. one million, two hundred thousand and twenty-six
__ 6. one thousand and twenty-six
__ 7. one hundred and ten thousand, two hundred and
six
a. 1,026 b. 10,206 c. 110,206 d. 126
e. 100,260 f. 12,026 g. 1,200,026
b
d
e
f
g
a
c
Exercise
Write the numbers in English.
a. 123 b. 458
c. 2358 d. 9632
e. 77414 f. 52588
g. 363584 h. 158779
i. 1234567 j. 9998876
表示日期,楼层,排序等;
(the eighth of March)
(the tenth floor)
( the second one)
Note: 序数词一般情况下必须和定冠词the连用。
序数词(表顺序)的用法
We use them to talk about dates(日期), floors(楼层), results(结果)…
Its birthday is on the fifth of June.
The flat is on the seventh floor.
I get the first in this exam(考试).
序数词前要加“the”
基数词变序数词的口诀
基变序,有规律
词尾加上th,(fourth, sixth)
一、二、三,特殊例
结尾字母 t, d, d (first, second, third)
八去 t,九去 e (eighth, ninth)
ve要用f替 (fifth, twelfth)
ty将y改成ie (twenty ----twentieth)
若要碰到几十几
前用基来后用序(twenty-four--twenty-fourth)
序数词
1 = one 1st = first 2 = two 2nd = second 3 = three 3rd = third 4 = four 4th = fourth 5 = five 5th = fifth 6 = six 6th = sixth 7 = seven 7th = seventh 8 = eight 8th = eighth 9 = nine 9th = ninth 10 = ten 10th = tenth
How do you write it
Ordinal numbers
1st = first 10th =
2nd = second 11th =eleventh
3rd = third 12th =twelfth
4th = fourth 13th=
5th = fifth 20th =twentieth
6th = 21st=twenty-first
7th = 22nd=
8th = 23rd=
9th = ninth 30th=
10th= 100th=
sixth
seventh
eighth
tenth
thirteenth
twenty-second
twenty-third
thirtieth
tenth
a hundredth
Where does everyone live
Sandy
Millie
Ivan
Wilson
Ricky
Mary
Peter
1. Elsa lives on the _________ floor.
2. Ivan lives on the __________ floor.
3. Mary lives on the ________ floor.
4. Peter lives on the ________ floor.
5. Ricky lives on the ________ floor.
6. Wilson lives on the _________floor.
seventh
fifteenth
fourth
second
ninth
twelfth
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
G
Wilson
Ivan
Mary
Peter
Ricky
Elsa
1. Do you live on the _____ (nine) floor
2. Next Friday is my father’s _______ (forty) birthday.
3. We will have the ____ (five) lesson next week.
ninth
fortieth
fifth
4. There are eight ________ (hundred) students in our school. _________ of them come from the same town.
5. On the ________ (twelve) of December, they will have a sports meeting.
hundred
Hundreds
twelfth
4. There are eight ________ (hundred) students in our school. _________ of them come from the same town.
5. On the ________ (twelve) of December, they will have a sports meeting.
hundred
Hundreds
twelfth
用所给词的适当形式填空.
He gets the (one) in the English test this time.
2.Tom will come on the (twelve) of this month.
3.There are days in a week. Saturday is the
_________ day . (seven)
4.This is my (three) time to come to Shanghai.
5.Mr. Green has children. Tom is the
youngest. He is the child. (nine)
6.He is the (twenty-one) member in the football team.
first
twelfth
seven
seventh
third
nine
ninth
twenty-first
( )1. There are some _____ in our classroom.
A. hundred of books B. the hundreds of books
C. hundreds of books D. hundred of book
( )2. There are ____ students in our school.
A. four—hundred and forty—five
B. four hundred and forty—five
C. four hundreds and forty—five
D. four hundred and forty five
( )3. May is ____ of a year.
A. the fifth months B. the fifth month
C. the five months D. the five month
( )4. Is Sunday the ____ day of the week
A. a B. one C. once D. first
( )5. September is _____month of the year.
A. nine B. nineth C. ninth D. the ninth
( )6. March the _____ is Women’s Day.
A. eighth B. ninth C. tenth D. eight
( )7. December the ____ is Christmas.
A. twenty-five B. twenty-fifth
C. twentieth-five D. twenty-five
( ) 8. The teacher asks me to go over _____ lessons.
A. thirst three B. the three first
C. three the first D. the first three
( )9. We live in ______.
A. the twenty-first century(世纪)
B. the century twenty-one
C. century twenty-one D. the century twenty-first
4,056
7,350
12,320
800,555
four thousand and fifty-six
seven thousand three hundred and fifty
twelve thousand three hundred and twenty
eight hundred thousand five hundred and fifty-five
20,450,209
twenty million four hundred and fifty thousand two hundred and nine