(共25张PPT)
0
人教版七年级(初中)英语上册
Unit 7
How much are these socks
Section B (1a-1e)
Learning objectives
0
1）To learn to count the numbers over 10 and find out the rules.
2）Learn to know and use more numbers in our daily life.
3）Use the numbers freely in the real situation and spend money in a wise way and save money.
Lead in
Let's sing a song:
Lead in
one
two
three
four
five
six
seven
eight
nine
ten
Can you read the numbers
Presentation
17
12
15
16
13
18
14
11
19
Let's learn more numbers:
eleven
twelve
seventeen
fourteen
fifteen
sixteen
nineteen
eighteen
thirteen
10
ten
从one到twelve， 拼写和读音没有什么规律，逐一记忆；
从thirteen 到nineteen, 表示“十几”，其后均有后缀-teen。注意thirteen, fifteen, eighteen的拼写。
Presentation
21
24
23
22
thirty
25
twenty-six
twenty-seven
twenty-eight
twenty-nine
twenty-one
twenty-two
twenty-three
twenty-four
twenty-five
30
26
27
29
28
thirty-one
31
twenty
20
表示“几十几”， 用“整十数+个位数”表示，中间用连字符“-”把十位数和个位数连接起来。
Presentation
twenty 二十
thirty 三十
forty 四十
fifty 五十
sixty 六十
seventy 七十
eighty 八十
ninety 九十
one hundred 一百
从twenty到ninety，表示“整几十”，其后均有后缀-ty。但需注意以下几个词的拼写：twenty, thirty, forty, fifty, eighty。
表示“几百”，用“具体数字+hundred”，注意hundred应用单数形式。
Presentation
1b Listen and repeat.
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27
28 29 30 31
Presentation
1b Write the numbers in 1a next to the correct words. Which rows of numbers are in the wrong places
ten ___
twenty-five ___
twenty ___
fifteen ___
thirty ___
eleven ___
twenty-six ___
twenty-one ___
sixteen ___
thirty-one ___
twelve ___
twenty-seven ___
twenty-two ___
seventeen ___
thirteen ___
twenty-eight ___
twenty-three ___
eighteen ___
fourteen ___
twenty-nine ___
twenty-four ___
nineteen ___
10
11
12
13
26
29
14
25
27
28
20
21
22
23
24
15
16
17
18
19
30
31
Presentation
(小组竞赛：你能做出这些数学题吗 )
1. One and two is ________.
2. Eleven and twenty-four is _________.
3. Forty-five plus five is _______.
4. Eight minus three is _______.
5. Sixty-two minus ten is __________.
6. Multiply five by nine is __________.
7. Eight divided by two is ___________.
three
thirty-five
fifty
five
Can you deal with these math problems
fifty-two
forty-five
four
and / plus ＋
minus －
multiply… by… ×
divide by… ÷
Presentation
数字接龙游戏
Three.
Six.
Nine.
Twelve.
...
Count by three/two/...
Presentation
10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31
1c Listen and circle the numbers you hear in 1a.
Presentation
Look and answer quickly.
How much are the black shoes
How much is the blue sweater
How much are these trousers
How much is the T-shirt
How much is the green sweater
Presentation
1d Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.
√
Presentation
Listen and choose
How much is the blue sweater
Fifty dollars. B. Fifteen dollars. C. Twenty dollars.
2. Kate buys ____.
a blue sweater B. a T-shirt C. the trousers.
Presentation
Answer the questions:
1. Does Kate like the red socks
Yes, she does.
2. Why doesn’t Kate buy the green sweater
Because she has a green sweater.
Presentation
How much are the black shoes
They are eighteen dollars.
1e Ask and answer questions about the things in the picture above.
Language points
1) 表示数量，置于名词前。
2) 表示编号，置于名词后。名词和基数词首字母通常大写。
I have five apples. 我有五个苹果。
I'm in Class Two, Grade Seven. 我在七年级二班。
基数词的用法
数词是表示数量或顺序的词， 可分为基数词和序数词两种。 表示数目多少的词叫基数词， 如one, two, three等。 基数词可指代或修饰可数名词。
Language points
3) 表示号码。
4) 表示年龄。
5) 表示时间。
6) 表示计算。
My phone number is 13305517686. 我的电话号码是13305517686。
My father is forty now. 我的爸爸四十岁了。
It's eight twenty now. 现在是八点二十分。
Five and three is eight. 五加三等于八。
Language points
数词“几十几”
(1) 表达“几十几”用:
“几十”+连字符“-”+“几”
37→thirty-seven; 98→ninety-eight
(2) “几十几”是一个单词, 不能漏掉连字符。
Exercise
完成句子。
1. —这件白色的T恤衫多少钱 —25元。
— is the white T-shirt
— yuan.
2. —这短裤15元吗 —是的。
— the shorts yuan
—Yes, they are.
How much
Twenty-five
Are
fifteen
Exercise
3. —你喜欢什么颜色
—我喜欢黄色。
— do you like
—I like yellow.
4. —十五加十六等于多少 —三十一。
— fifteen and sixteen — .
5. 这十双袜子35元。
These pairs of socks are yuan.
What color
What’s
Thirty-one
ten
thirty-five
Homework
1. Copy the numbers in 1a for three times.
2. Finish the exercises in students' book.
谢谢
21世纪教育网（www.21cnjy.com)
中小学教育资源网站
兼职招聘：
https://www.21cnjy.com/recruitment/home/admin
