Unit 1 Dream Homes Grammar 课件 牛津译林版七年级英语下册 (共20张PPT)

(共20张PPT)
7B Unit 1 Dream homes
Grammar
What kind of home do you live in
How many rooms does it have
How many people are there in your family
Do you and your family spend the Spring Festival together
What time do you often go to bed on New Year’s Eve
How much money do you get during the
Spring Festival
How old are you now
Have a free talk
It has three/four/five/... rooms.
There are three/four/... people in my family.
I often go to bed at 10:00/11:30/12:00/...on New Year’s Eve.
I get 100/200/500/...yuan.
I am twelve/thirteen/fourteen years old.
★We use cardinal numbers to talk about the numbers of people or things, time, money, age and so on.
Have a free talk
0=zero 10=ten 20=twenty 21=twenty-one
1=one 11=eleven 30=thirty 22=twenty-two
2=two 12=twelve 40=forty 23=twenty-three
3=three 13=thirteen 50=fifty 24=twenty-four
4=four 14=fourteen 60=sixty 25=twenty-five
5=five 15=fifteen 70=seventy 26=twenty-six
6=six 16=sixteen 80=eighty 27=twenty-seven
7=seven 17=seventeen 90=ninety 28=twenty-eight
8=eight 18=eighteen 100=hundred 29=twenty-nine
9=nine 19=nineteen
Cardinal numbers
★Rule 1:
13-19这几个数均以teen结尾
★Rule 2:
20以上100以内的整十数，均以ty结尾
★Rule 3:
20以上的非整十数，书写时要在十位和个位之间加连字符。
Cardinal numbers
100
1,000
10,000
100,000
1,000,000
1,000,000,000
Cardinal numbers
one hundred
[ h ndr d]百
one thousand
ten thousand
one hundred thousand
one million
[ θa znd]千
[ m lj n]百万
one billion
[ b lj n]十亿
百位数(百=hundred)
234=
204=
千位数(千=thousand)
2,345=
4,056=
2,008=
★Rule 4:读三位数或三位以上的基数词时，要在十位前加and，如果十位为0，则在个位前加and。
Cardinal numbers
two hundred and thirty-four
two hundred and four
two thousand three hundred and forty-five
four thousand and fifty-six
two thousand and eight
较大数字(百万=million)
567,110=
6,425,279=
Cardinal numbers
five hundred and sixty-seven thousand one hundred and ten
six million four hundred and twenty-five thousand two hundred and seventy-nine
★Rule 5:在用阿拉伯数字记录较大数目时，通常用逗号将大数目分隔，从个位开始，三个一组。从右往左逗号依次代表thousand, million和billion。
9 3 0 5 1 0 4 6 0 7
,
,
,
thousand
million
billion
nine billion three hundred and five million one hundred and four thousand six hundred and seven
★数字+hundred/ thousand/ million ...百/千/百万
three hundred/five thousand/nine million
hundreds of/ thousands of/ millions of成百上千/成千上万/数百万
Thousands of people visit Lianyungang every year.
Practice
There are (hundred) of players. Four (hundred) of them are girls.
Cardinal numbers
hundreds
hundred
Practice
1. People from about 180 countries and areas live in New York.
180=one hundred and eighty
2. The CN Tower is 1,815 feet tall.
1,815=one thousand eight hundred and fifteen
3. Red Square in Moscow is about 91,000 square metres in size.
91,000=ninety-one thousand
4. France has an area of over 260,000 square miles.
260,000=two hundred and sixty thousand
5. There are about 8,000,000 people living in London.
8,000,000=eight million
6. Tokyo, the capital of Japan, has over 13,000,000 people
13,000,000=thirteen million
The summer holiday starts from the first of July.
日期读法：the+序数词+of+月份=月份+the+序数词
·I live on the eleventh floor.
on the+序数词+floor 在......楼
·The team comes first in the basketball match.
come first/second/... 得第一/第二/...
·Sandy is the first student to go to school every morning.
the+first/second/...+(名词)+to do sth.第一个/第二个/...做某事的（...）
★We use ordinal numbers to talk about dates, floors, positions, etc.
Ordinal numbers
1st=first 10th=tenth 19th=nineteenth
2nd=second 11th=eleventh 20th=twentieth
3rd=third 12th=twelfth 30th=thirtieth
4th=fourth 13th=thirteenth 40th=fortieth
5th=fifth 14th=fourteenth 50th=fiftieth
6th=sixth 15th=fifteenth 60th=sixtieth
7th=seventh 16th=sixteenth 70th=seventieth
8th=eighth 17th=seventeenth 80th=eightieth
9th=ninth 18th=eighteenth 90th=ninetieth
Ordinal numbers
一般的序数词的构成是在基数词词尾加上th，而first、second、third是特殊的。
以ve结尾的基数词，ve要变为f，再加th。
five---fifth twelve---twelfth
以ty结尾的基数词，y要变为ie，再加th。
twenty---twentieth thirty---thirtieth
十位或百位的基数词，只将其个位上的基数词变为序数词。
fifty-five---fifty-fifth
two hundred and sixty-one---two hundred and sixty-first
Ordinal numbers
Ordinal numbers
★基数词变序数词口诀：
基变序，有规律。
1，2，3，特殊记，结尾字母tdd;
th要从4加起；
8加h，9去e；
ve要用f替；
逢十改y为ie；
几十几，几百几，只变个位就可以。
seventh
fifteenth
fourth
second
ninth
twelfth
1. volunteers will take part in the Youth Olympic Games in Nanjing this summer vacation.
A. Ten thousands B. Thousand of
C. Ten thousands of D. Thousands of
2. the students will go to the island for the picnic.
A. Three hundreds of B. Three hundred
C. Three hundred of D. Hundreds of
Practice
3. --- Could you tell me how to read the number 567,043 in English
--- It’s .
A. five hundred sixty-seven thousand forty-three
B. five hundred sixty-seven thousand and forty-three
C. five hundred and sixty-seven thousand forty-three
D. five hundred and sixty-seven thousand and forty-three
4. The new bridge is about long.
A. six hundred meter B. six hundred meters’
C. six-hundred-meter D. six hundred meters
5. 7,069
27,483
632,516
8,137,527
6. Several (百) families take part in the game.
7. September is the (nine)month of the year.
8. Amy came (two) in the Maths exam.
9. There is a shopping mall on the (twelve) floor.
seven thousand and sixty-nine
twenty-seven thousand four hundred and eighty-three
six hundred and thirty-three thousand five hundred and sixteen
eight million one hundred and thirty-seven thousand five hundred and twenty-seven
hundred
ninth
second
twelfth
For all:
Recite the rules.
Finish the related exercises in exercise books.
For some:
Make up five sentences with cardinal numbers and ordinal numbers.
Homework
Thank you!