牛津译林版七年级下Unit 1 Dream Homes Grammar 课件（27张）

(共27张PPT)
Grammar
Unit 1 Dream homes
导学讲解
基数词和序数词的样子
基数词和序数词的用法
语言知识点

Useful Numbers
7,059

seven thousand and fifty-nine
28,444

thirty-two million six hundred and ninety-eight thousand one hundred and eighty-seven
32,698,187

twenty-eight thousand four hundred and forty-four
2008年8月8日

August the eighth, two thousand and eight
第一百页

Page One Hundred/ the one hundredth page
七点四十五

Number Twenty-one Middle School
第二十一中学

seven forty-five
304房间

Room Three O Four
练习五

Exercise Five
花园路88号

Number Eighty-eight, Garden Road


Cardinal
Ordinal



Cardinal
Numbers
1. 13—19，皆由3—9加后缀-teen构成。(注意：thirteen, fifteen, eighteen的拼法)
2. 20—90等十位数均由2—9加后缀-ty构成。(注意：twenty, thirty, forty, fifty, eighty的拼法)
3. 21—29由十位数20加个位数1—9构成，中间须有连字符“-”, 其它的十位数照此类推。如：forty-four, ninety-nine
基数词(共10个知识点)
注意单词的重音



Cardinal
Numbers
4. 百位数由1—9加hundred构成，hundred后面不加s，如包含十位数及个位数，中间用and连接；如只包含个位数，即十位数为零时，and也不可省。如：234 two hundred and thirty-four，706 seven hundred and six
5. 千位数由1—9加thousand构成，其后的百、十、个位数构成方法同前。如： 1,149 a/one thousand one hundred and forty-nine (此处hundred之前不可用a)，在非正式文体中，也可以写作eleven hundred and forty-nine
基数词(共10个知识点)



Cardinal
Numbers
6. 英语里没有“万”这一单位，万也用thousand表示。如：10,000 ten thousand
7. 在用阿拉伯数字记录较大数目时，通常用逗号或空格将大数目分隔，从个位开始，三个一组。
123,456,789
one hundred and twenty-three million four hundred and fifty-six thousand seven hundred and eighty-nine
基数词(共10个知识点)



Cardinal
Numbers
8. hundred, thousand是数词，原则上没有复数形式，即400说four hundred, 但表示不确定的数目时以复数形式出现。
e.g. hundreds of exercise books 数百本练习本
Many thousands of volunteer doctors have been in the hospitals in Wuhan to save the patients. 数以千计的志愿医生在武汉的医院里拯救病人。
基数词(共10个知识点)



Cardinal
Numbers
9. 表示“几十”的数词，其复数形式可以表示年龄或年代。如：in his twenties 在他二十多岁时；in the 1980s 二十世纪八十年代。
基数词(共10个知识点)

中考链接(2015年)
Tony’s mum looks young and beautiful. It’s hard to imagine she is already in her _____.
A. fifties B. fifty C. fiftieths D. fiftieth



Cardinal
Numbers
10. 一些习惯用法：
The chickens went back to the coop in twos and threes. 小鸡三三两两地回到了鸡窝里。
基数词(共10个知识点)



Ordinal
Numbers
1. 序数词第1—19(first，second与third有特殊形式外)，其余均由基数词加后缀-th构成。如：19th nineteenth
序数词(共6个知识点)

中考链接(2019年)
He seems to have a __________(第六) sense for knowing that his brother will win.
sixth



Ordinal
Numbers
2. 十位数的序数词的构成方法是：先将十位数的基数词的词尾ty中的y变为i，然后加后缀-eth。如：20th twentieth
序数词(共6个知识点)

中考链接(2016年)
Toni Morrison is considered as one of the best writers of the __________(第二十) century.
twentieth



Ordinal
Numbers
3. 十位数的序数词如包含1—9的个位数时，十位数用基数词，个位数用序数词，中间须有连字符“-”。如：21st twenty-first
4. 百、千、万等的序数词由hundred, thousand等加-th，前面加有关的基数词构成。如：100th one hundredth
5. 多位数序数词的后位数如包含1—9时，最后位数用序数词，前位数用基数词，中间出现零时，须用and连接。如：201st two hundred and first
序数词(共6个知识点)



Ordinal
Numbers
6. 基数词变为序数词的口诀：
一二三，特殊记(first , second, third)，
ve要用f替(five---fifth, twelve---twelfth)，
eight去t, nine去e(eight---eighth, nine---ninth)，
ty改成tie(thirty---thirtieth)，
最后th通通加上去。
要是遇上几十几，只变个位就可以(twenty-first)。
序数词(共6个知识点)
容易考到的基数词和序数词：
基数词
13 15 18 20 30 40 50 80 44
序数词
1st 2nd 3rd 5th 8th 9th 12th 20th 40th 99th
表示顺序或编号。由单数名词 + 基数词，此时名词和基数词第一个字母大写。
e.g. Grade Three
Room Five
Lesson Ten
Page 108
No. 3 High School
用法(共5个知识点)
= the third grade
= the fifth room
= the tenth lesson
= the 108th page
2. 确数与概数的表达
确切的数词用：基数词+ hundred, thousand, million, billion + 名词复数。如：six hundred students 六百个学生
大概的数词用：短语hundreds/thousands/millions/billions of +名词的复数，表示“数以百/千/百万/十亿计的……”。(例句见前面基数词知识点第8点)
注意：six hundred of the students 学生中的六百个
用法(共5个知识点)
3. 用序数词来表示日期、世纪、生日、楼层等。
6月5日，写作：June 15或June 15th，读成：the fifth of June (=June the fifth)
the twentieth century 二十世纪
Today is my twelfth birthday. 今天是我12岁生日。
在5楼的那家饭店周一不营业。
用法(共5个知识点)
序数词前要加定冠词the，有物主代词或名词所有格不需要加the。
The restaurant on the fifth floor isn’t open on Mondays.
4. 序数词在一些句型中的使用。
e.g. It is my eighth time to have an online class. 这是我第8次上网上课。
Was Tabby the fourth one to pass the test? 泰比是第四个通过考试的人吗？
用法(共5个知识点)
5. I can’t believe such _____ 11-year-old kid wrote _____ 8-thousand-word essay in such a short time.
A. a; a B. an; a C. a; an D. an; an
遇到和8、11、one相关的数字要注意它们的读音。
e.g. This is a one-month-long holiday.
用法(共5个知识点)
单词拼写
1. The _______(九) lesson is very interesting.
2. I was born on the _______(第二) of July.
3. The _____________(二十九) Olympic Games took place in Beijing.
4. The f_____ day of a week is Sunday.
5. There are eight _________(hundred) students in our school.
__________ of them come from the same town.
6. Do you live on the _____(第五) floor?
7. Next Friday is my father’s ________(forty) birthday.
8. We will have the ______________(第三十四) lesson next week.
9. Women’s Day is on March the _______.
10. On the ________(twelve) of December, they will
have a sports meeting.
ninth
second
twenty-ninth
irst
hundred
Hundreds
fifth
fortieth
thirty-fourth
eighth
twelfth
1
1. be + 面积 + in size/area 占…面积；有…(多大)
e.g. Our living room is twenty square feet in area/size.
How large is your living room?
There is a balcony of 3 square meters in size/area.
语言点(共3个知识点)
2
2. have an area of + 面积 = be + 面积 + in size/area
e.g. China has an area of 9,600,000 square kilometers.
China is 9,600,000 square kilometers in area/size.
语言点(共3个知识点)
3
3. be the first to come 是第一个来
be the last to leave 是最后一个离开
e.g. My mom is the first to get up in the morning.
Who wants to be the last to do the test?
比较：come first
e.g. The hard-working student always comes first in exams. His hard work pays off.
语言点(共3个知识点)
完成句子
1. The balcony is only 10 square feet in size. (改为同义句)
____________________________________________________
2. 那个工厂占地31,000,000平方米。
The factory has ____________ 31,000,000 _______________.
3. 露希是第一个完成所有回家作业的。
____________________________________________________
4. 这是这位英雄第三次回到家乡吗？
Is this __________ time for the hero ______________________
____________?
The balcony has an area of only 1o square feet.
an area of
square meters
Lucy was the first to finish all the homework.
the third
to come back to his
hometown
Homework
在笔记本上默写《课前导学》第二部分的8句句子。
在家中找出10个不同的数词，用英语说出并记录下来。
完成课后检测。
Thank you for participation!