(共34张PPT)
Unit 1 Dream homes
Grammar
牛津译林版 七年级下
Lead-in
12 o’clock
No.28 Bus
No.30 player
We use Cardinal numbers everyday.
Lead-in
Presentation
基数词定义及拼写
表示数目的词称为基数词(Cardinal numbers)。其形式如下：
1－12, 独立成词。
one two three four five six seven
eight nine ten eleven twelve
20－90, 以-ty结尾。
20—twenty 30－thirty 40—forty 50—fifty
80—eighty 60—sixty 70—seventy 90—ninety
基数词定义及拼写
Presentation
13－19, 由3－9 + teen构成。
14–fourteen 16－sixteen 17－seventeen 19—nineteen
特殊拼写: 13— thirteen 15—fifteen 18—eighteen
21－99， 两位数，十位与个位之间有 “－”。
twenty-one 55 fifty-five 99 ninety-nine
基数词定义及拼写
Presentation
101—999，三位数，百位与十位/个位之间加and。
101 one hundred and one
840 eight hundred and forty
693 six hundred and ninety-three
英语基数词顺口溜
英语数词不难记，找出规则就容易。
零至十二形各异，一个一个单独记。
后面加teen变十几，thirteen, fifteen看仔细。
eighteen只有一个t，两个音节念清晰。
表示“几十”要加-ty, twenty, thirty 是特例。
表示数字“几十几”，连字符号别忘记。
631
789,
500,
5,
thousand
hundred
million
billion
and
1，000以上数目,从右向左每三位用“，”分开,分别读为thousand , million, billion
Presentation
基数词定义及拼写
Practice
4,056=
23,813=
567,110=
6,425,200=
four thousand and fifty-six
twenty-three thousand, eight hundred and thirteen
five hundred and sixty-seven
thousand, one hundred and ten
six million, four hundred and
twenty-five thousand, two hundred
How do we say them
Practice
How do we read them
Simon is collecting some information about different
countries.Help him read the numbers correctly.
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 miles.
one hundred and eighty
one thousand eight hundred and fifteen
ninty-one thousand
Practice
How do we read them
Simon is collecting some information about different
countries.Help him read the numbers correctly.
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.
two hundred and sixty thousand
eight million
thirteen million
Practice
How do we write them
1. one hundred and twenty-five
2. two thousand three hundred and eleven
3. ten thousand and eleven
4.one hundred thousand one hundred and two
5. Two million three hundred and two
6. nine hundred million eight thousand seven
hundred and eight
125
2,311
10,011
100,102
2,000,302
9,008,708
基数词的用法
表示具体数目,hundred, thousand, million不用复数。
特殊基数词的用法
Extension
Our country has a population of 1,300 million people.
There are three thousand students in our school.
特殊基数词的用法
After the war, thousands of people became homeless.
Several / Many thousands of trees must be planted every year.
表示不确定数目,用复数。即hundreds of(数百),
thousands of(数千), millions of(数百万)+ 名词复数,
可以用many/several修饰，但不能与具体数目连用。
Extension
“基数词+名词” 的合成形容词作定语，中间有连字符“－”,当中的名词用单数。
其他基数词的用法
表计量: 基数词+度量单位+形容词
a 3 – year – old girl a seven-day holiday
The classroom is 7 meters long,
6 meters wide and 3 meters high.
Extension
Presentation
基数词和序数词的区别
数
词
基数词
序数词
表数量
表顺序
We use ordinal numbs to order things and events.
We use them to talk about dates,floors,positions,etc.
序数词的构成
1－3, first, second, third 。
4－19, 相应基数词+ th,
特殊拼写:fifth, eighth, ninth, twelfth。
20－90, y变成ie +th,如twentieth。
21－99, 只把个位的基数词变成序数词
如twenty-first。
序数词缩写：数字＋最后两字母
如1st, 2nd, 3rd ,4th…
Presentation
基数词 序数词 序数词缩写 基数词 序数词 序数词缩写
one first 1st nine ninth 9th
two second 2nd twelve twelfth 12th
three third 3rd twenty twentieth 20th
five fifth 5th thirty thirtieth 30th
eight eighth 8th thirty-one thirty-first 31st
序数词的缩写
序数词的构成规律
基变序,有规律,
一、二、三，特殊记，面目全非要注意，
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。
序数词缩写记清楚,数字后跟两字母。
序数词的构成
Presentation
Extention
序数词前的冠词
(1)序数词作定语，前面要加the；
The first truck is carrying a food basket．
John lives on the fifteenth floor．
She is my first English teacher.
有时加a/an，“再一”，“又一” 的意思
We’ll have to do it a second time．
Shall I ask him a third time？
When I sat down, a fourth man rose to speak．
They had a second child in 1988
Extention
序数词前的冠词
编号在前，名词在后，用序数词，前面有the。
编号在后，名词在前，用基数词，注意首字母大写。房间号码和电话号码要一个一个分别读
序数词表编号
第一课
第32页
第305房间
第12路公共汽车
The First Lesson；Lesson One
the thirty-second page
Page 32 / Page Thirty-two
Room 305
Bus No.12
Extention
Practice
基数词 序数词
3 three
12
13
15 fifteen
8 eight
20 twenty
third
twelve
twelfth
thirteen
thirteenth
fifteenth
eighth
twentieth
按提示填空
Practice
1 = one 2 = 3 = 4 = four 5 = five 6 = 7 = 8 = 9 = nine 10 =
11 = eleven 12 = 13 =
19 = nineteen 20 =
21 = twenty-one
30 = thirty 40 =
100 =
101 =
Help Millie write the numbers .
Cardinal numbers
two
three
six
seven
eight
ten
twelve
thirteen
twenty
forty
one hundred
one hundred and one
Practice
11th = eleventh 12 = twelfth 19th =
20th = twentieth
21 = twenty-first
22nd =
23rd =
30th =
40th = fortieth
100th=
Help Millie write the numbers .
Ordinal numbers
1st = first 2nd = second 3rd = third 4th = fourth 5th = fifth 6th = 7th = 8th = 9th = ninth 10th =
sixth
seventh
eighth
tenth
nineteenth
twenty-second
twenty- third
thirtieth
one hundredth
Practice
Complete the sentences .
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
read and write
January 1
February 2
March 3
April 4
① January the first
② the first of January
① February the second
② the second of February
① March the third
② the third of March
① April the fourth
② the fourth of April
Practice
Practice
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 NJ.
5. Mr. Green has children. Tom is the
youngest. He is the child. (nine)
6. He is the (twenty-one) League
Member in our class.
first
twelfth
seven
seventh
third
nine
ninth
twenty-first
中考链接
1.Dick, it is the ________ time in ________ days that you’ve made the same mistake.（2015恩施模拟）
A. two, three B. second , three
C. two, third D. second, third
B
[解题技巧]
以此立意的试题要求考生能正确使用基数词和序数词：基数词用来表达事物的量；序数词用来表达事物的顺序。本题的第一空表示顺序用序数词second；第二空用基数词three，答案为B。
2.How many people will come to Beijing next year
It’s hard to say, ________ people, I think.（2017年仁寿县模拟）
A. million of B. millions of C. three millions D. three millions of
B
[解题技巧]
以此立意的试题考查考生能否正确使用hundred等单位数词。表示单位的数词用法分两种情况：1.当放在具体的数字后边，表示具体的“百、千、百万、十亿”时，不能用复数形式，可以直接修饰名词复数，如two thousand students；2.当表示大概的“几百、几千、几百万、几十亿”时，用“复数形式＋of”结构，前边不能用具体的数字，如：thousands of students。
本题中只有B项正确。
中考链接
1.Do the
exercises .
Homework
2.Preview the
next lesson.
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牛津译林版英语七年级下册
Unit1 Dream homes 第三课时教学设计
课题 Dream homes 单元 Unit 1 学科 English 年级 7
学习目标 Knowledge aims: 1. Cardinal numbers2. Ordinal numbers Ability aims: 1.To learn to use cardinal numbers correctly.2.To learn to use ordinal numbers correctly.Emotional aims: To love numbers
重点 How to read and write some big cardinal numbers.
难点 How to read and write some big cardinal numbers.
教学过程
教学环节 教师活动 学生活动 设计意图
导入新课 让学生看一些带有数字的图片并交流图片中的数字。 看图片并自由交流图片中的数字 培养学生热情快乐，积极向上的生活态度利用图片，创设情境让学生在视觉上受到刺激，自然导入课本主题。
讲授新课 讲解基数词的定义及拼写1－12, 独立成词。one two three four five six seven eight nine ten eleven twelve13－19, 由3－9 + teen构成。14–fourteen 16－sixteen 17－seventeen 19—nineteen 特殊拼写: 13— thirteen 15—fifteen 18—eighteen20－90, 以-ty结尾。20—twenty 30－thirty 40—forty 50—fifty 80—eighty 60—sixty 70—seventy 90—ninety 21－99， 两位数，十位与个位之间有 “－”。twenty-one 55 fifty-five 99 ninety-nine101—999，三位数，百位与十位/个位之间加and。101 one hundred and one840 eight hundred and forty693 six hundred and ninety-three1，000以上数目,从右向左每三位用“，”分开,分别读为thousand , million, billion 英语基数词顺口溜：英语数词不难记，找出规则就容易。 零至十二形各异，一个一个单独记。 后面加teen变十几，thirteen, fifteen看仔细。 eighteen只有一个t，两个音节念清晰。 表示“几十”要加-ty, twenty, thirty 是特例。表示数字“几十几”，连字符号别忘记。组织学生练习怎样拼读基数词4,056= 23,813= 567,110=6,425,200=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 miles.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.三、组织学生练习怎样书写基数词。1. one hundred and twenty-five2. two thousand three hundred and eleven3. ten thousand and eleven4.one hundred thousand one hundred and two5. Two million three hundred and two6. nine hundred million eight thousand seven hundred and eight观看关于基数词的用法视频，并讲解特殊基数词的用法1.表示具体数目,hundred, th ( http: / / www.21cnjy.com )ousand, million不用复数。表示不确定数目,用复数。即hundreds of(数百),thousands of(数千), mil ( http: / / www.21cnjy.com )lions of(数百万)+ 名词复数,可以用many/several修饰，但不能与具体数目连用。“基数词+名词” 的合成形容词作定语，中间有连字符“－”,当中的名词用单数。表计量: 基数词+度量单位+形容词讲解基数词和序数词区别讲解序数词的构成及缩写1.列举1－3, first, second, third 。4－19, 相应基数词+ th, 特殊拼写:fifth, eighth, ninth, twelfth。 20－90, y变成ie +th,如twentieth。21－99, 只把个位的基数词变成序数词 如twenty-first。2.序数词缩写：数字＋最后两字母 如1st, 2nd, 3rd ,4th…3.序数词的构成规律4.序数词前的冠词5.拓展：序数词表编号六、组织学生练习基数词、序数词书写及转变应用。七、中考链接 学习基数词的含义及拼读。练习怎样拼读基数词练习书写基数词 学习特殊基数词用法学习基数词和基数词区别学习序数词的构成及有关序数词的运用做基数词序数词练习 通过教师讲解，夯实学生的语言基础。通过及时练习，巩固所学语言知识。通过练习掌握语言基础知识。全面理解掌握知识过渡到下面序数词的学习。牢固掌握语言知识基础巩固所学语言知识
课堂小结 基数词、序数词的构成转换及应用 和老师一块总结 梳理本节课所学知识，加深记忆，巩固知识。
作业 ( http: / / www.21cnjy.com ) expressions. 2. Preview the next lesson. 做课下作业 课下巩固与课堂学习相结合。
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牛津译林版英语七年级下册
Unit 1 Dream homes
Grammar
练习
一、根据所给的数字写出他们的基数词和序数词形式。
1 2 3 5 8 9
基数词
序数词
12 14 19 30 40 90
基数词
序数词
二、根据句意,用所给数词的适当形式填空：
1.Look, there are ______pictures of the Great Wall on the wall.21教育网
The ______one is bi ( http: / / www.21cnjy.com )gger. I go to visit the Great wall______ a year. (two)
2. The ______ girl in the line is Amy. (four)
3. Tomorrow is my _______(twelve) birthday. Would you like to come to my party
4. Who came ______in the English exam (nine)
5. Today we are going to learn Unit ______(eight). 21·世纪*教育网
三、单项选择：
（ ）1. There is an air conditioner _______ the window,21cnjy.com
A. above B. between C.besides D.in
（ ）2. Wednesday is the __________ day of a week .2-1-c-n-j-y
A. third B. fourth C. four D. three
（ ）3. Look ! They are swimming _________ the river .21*cnjy*com
A, in mi ( http: / / www.21cnjy.com )ddle of B. in the middle of C. between D.behind【来源：21cnj*y.co*m】
（ ）4. We will arrive _____ Tokyo _____ the morning of March 3rd .
A. at,in B. in ,on C. in,in D. at ,at 21世纪教育网版权所有
（ ）5.We usually make dinner in the ____________.
A. dining room B. sitting room C. bedroom D. kitchen
（ ）6、Paul lives on ___________ floor .
A. thirteenth B. thirteen C. the thirteen D. the thirteenth
（ ）7、February is ________ month of a year .
A. a two B. the second C. the seconds D a second .
四、完成句子：
1.她将在星期六到达南京。
She will Nanjing on Saturday.
2.他迫不及待地打开了门。
He the door.
3.他和他弟弟共享一个卧室吗？
He a bedroom his brother
4.老师得办公室在教学楼对面。
The teachers’ offices are .
5.教室里没有其他的学生了。
There are in the classroom
答案：
一、根据所给的数字写出他们的基数词和序数词形式。
1 2 3 5 8 9
基数词 one two three five eight nine
序数词 first second third fifth eighth ninth
12 14 19 30 40 90
基数词 twelve fourteen nineteen thirty forty ninety
序数词 twelfth fourteenth nineteenth thirtieth fortieth ninetieth
二、根据句意,用所给数词的适当形式填空：
1.Look, there are _two_____pictures of the Great Wall on the wall.www.21-cn-jy.com
The __second____one is bigger. I go to visit the Great wall_twice__ a year. (two)
2. The _fourth___girl in the line is Amy. (four)
3. Tomorrow is my twelfth(twelve) birthday. Would you like to come to my party
4. Who came ninth in the English exam (nine)
5. Today we are going to learn Unit eight(eight). 2·1·c·n·j·y
三、单项选择：
1. A 2. B 3. C 4. B 5.D 6.D 7.B
四、完成句子：
1.She will arrive in Nanjing on Saturday.21·cn·jy·com
2.He can’t wait to open the door.【来源：21·世纪·教育·网】
( http: / / www.21cnjy.com / )5. There are not any students in the classroomwww-2-1-cnjy-com
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