(共32张PPT)
Unit 7 How much are these socks
人教新目标版 七年级上
SectionB 1a-1e优质课
Learning objectives
1. 掌握词汇: ten, eleven, twelve, thirteen, fifteen, eighteen, twenty, thirty等。
2. 能够正确使用基数词描述商品价格。
3. 掌握基数词0-100的构成和用法。
4.提高学生获取信息的能力和口语交流能力。
Warming-up
Let’s enjoy a song.
pants $77
socks $23
jacket $12
trousers $50
skirt $18
shorts $44
shoes $20
bag $36
hat $15
T-shirt $11
A:Can I help you
B: Yes,please.I need...
A:Ok.What color do you want
B:...
A:How about this one
B:It's/They are nice/beautiful/great.
How much is it/are they
A:...dollars /yuan.
B:I'll take it/them. Thank you .
A：You're welcome.
玩转盘编对话。
Revision
Work in two and make a conversation.
I want two T-shirts. How much are they
$5
数量x2
ten dollars
立即支付
Lead-in
I want a T-shirt
and a bag. How much are they
数量x2
eleven dollars
立即支付
I want a T-shirt and
a pair of shoes. How
much are they
数量x2
twelve dollars
立即支付
I want a T-shirt
and a pair of trousers.
How much are they
数量x2
thirteen dollars
立即支付
I want a T-shirt
and a jacket. How
much are they
数量x2
fifteen dollars
立即支付
ten 十
eleven 十一
twelve 十二
thirteen 十三
fourteen 十四
fifteen 十五
sixteen 十六
seventeen 十七
eighteen 十八
nineteen 十九
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。
Can you read these numbers
Presentation
twenty 二十
twenty-one
二十一
twenty-two
二十二
twenty-three
二十三
twenty-four
二十四
twenty-five
二十五
twenty-six
二十六
twenty-seven
二十七
twenty-eight
二十八
twenty-nine
二十九
3.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。
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。
Let’s count from 10-31.
Work in groups.
Let’s see which group is the quickest to count all the numbers.
Practice
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27
28 29 30 31
Listen and repeat.
1a
Row 1: ten___ eleven___ twelve___ thirteen___
fourteen___
Row 2: twenty-five____ twenty-six_____ twenty-seven___
twenty-eight____ twenty-nine___
Row 3: twenty____ twenty-one____ twenty-two___
twenty-three___ twenty-four____
Row 4: fifteen______ sixteen______ seventeen______
eighteen_______ nineteen_____
Row 5: thirty____ thirty-one_______
Write the number in 1a next to the correct word.
Which rows of numbers are in the wrong places
10
11
12
13
14
25
26
27
28
29
20
21
22
23
24
15
16
17
18
19
30
31
1b
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。
表示数量，置于名词前。
eg.I have five apples. 我有五个苹果。
表示编号，置于名词后。名词和基数词首字母通常大写。
eg.I'm in Class Two, Grade Seven. 我在七年级二班。
基数词
表示号码。
eg.My phone number is 23***271.
我的电话号码是23***271
表示年龄。
eg.My father is forty now.
我的爸爸四十岁了。
表示时间。
eg.It's eight twenty now.
现在是八点二十分。
表示计算。
eg.Five and three is eight.
五加三等于八。
基数词的用法
从one到twelve， 拼写和读音没有什么规律，逐一记忆；
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。
1. 个位数、十几、几十几
从thirteen 到nineteen, 表示“十几”，其后均有后缀-teen。注意thirteen, fifteen, eighteen的拼写。
基数词构成：
整几十
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。
整百
表示“几百”，用“具体数+hundred”，
注意hundred应用单数形式。
2. 整几十、整百
Let's find out the rules
1. 0 - 12: (记住每个单词)
2. 13 - 19: -teen (thir-; fif-; eigh-)
3. 20 - 90: -ty (twen-; thir-; for-; fif-; eigh-)
4. 21 - 99:
5. 100 - 900:
1-9 hundred
6. 101 - 999:
___ hundred and
个位
十位
个位
十位
个位
Doggerel (魔法记忆)
英语数词不难记，
找出规律就容易。
零至十二词不同，
一个一个单独记，
后面加teen变十几，
thirteen , fifteen辨仔细，
eighteen 只有一个t，
两个音节念清晰。
二十至九十后加ty，
twenty不同重点记，
forty去掉字母u，
thirty, fifty更出奇，
十位数后个位数，
表示数值几十几，
按序排列不费力，
连字符号莫丢弃。
Summary
99
23
56
13
16
26
28
17
14
25
29
20
11
30
青蛙跳
（当青蛙跳到荷叶时, 快速说出其中的英文数字）
Game time
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27
28 29 30 31
Listen and circle the numbers you hear in 1a.
1c
Kate and her mother are shopping at the clothes store.
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
Check: The black shoes are eighteen dollars.
Pre-listening
Check (√) the thing Kate buys.
1d
Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.
Mom: Oh, look! I like that blue sweater. _____ _____ is it
Kate: _______ dollars. Oh, I like these _____.
Mom: Oh, no. I don’t like ___.
Kate: Do you like this ______
much
red
How
Fifteen
socks
T-shirt
Listen again. Fill in the blanks
Mom: Mmm, yes. I do, but it’s ______ dollars.
Kate: Oh. How much is the _____ _______
Mom: It’s ______ dollars. But you have a green sweater.
Kate: Mmm.
Mom: Oh, do you like these _______
Kate: Oh, yes. How much ____ ____
Mom: Only _______ dollars.
Kate: OK, ____________.
eleven
green
sweater
twenty
trousers
are
they
sixteen
I’ll take them
Mom: Oh, look! I like that blue sweater. How much is it
Kate: Fifteen dollars. Oh,I like these socks.
Mom: Oh, no. I don't like red.
Kate: Do you like this T-shirt
Mom:Mmm, yes, I do, but it's eleven dollars.
Kate:Oh.How much is the green sweater
Mom:It's twenty dollars.But you have a green sweater.
Mom: Oh, do you like these trousers
Kate:Oh, yes.How much are they
Mom:Only sixteen dollars.
Kate:OK,I'll take them.
Listen and repeat.
What do you think of the prices
When we talk about the price, we usually use: It’s expensive(贵的) / cheap(便宜的) / reasonable(合理的).
Tip:
Work in groups and talk about the prices of the things in our classroom. Choose the things you want to buy. How much should you pay
1e
The Single’s Day
12.12
There are many shopping days.
We should only buy things that we need.
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