(共39张PPT)
新目标(Go for it)版七年级上册
SectionB(1a-1e)
Unit7 How much are these socks
Warming-up
Let’s sing together!
Presentation
Ask and answer.
T-shirt
sweater
hat
jacket
skirt
bag
A: How much is …
B: It's … dollars.
$4
$6
$5
$4
$3
$9
A: How much are …
B:They're … dollars.
shorts
trousers
shoes
$4
$7
$8
Revision
Try to make conversations according to the pictures.
$9
$1
ten
10
$9
$2
eleven
11
$10
$2
twelve
12
If we buy these things,how much will we need to pay in total
基数词10-12
1.one~twelve(1-12)的拼写和读音各不相同，无规律可循，应逐一记忆。
Lead-in
thirteen
13
fourteen
14
fifteen
15
sixteen
16
seventeen
17
eighteen
18
nineteen
19
4 four
5 five
6 six
7 seven
8 eight
9 nine
基数词13-19
2.thirteen~nineteen(13-19)表示“十几”，在个位数词后加后缀-teen,读作[ti:n]，单词有两个重音。还要注意thirteen(13)、fifteen(15)和eighteen(18)在拼写上的差别之处。
Presentation
twenty
20
thirty
30
forty
40
fifty
50
sixty
60
seventy
70
基数词20,30,40...
eighty
80
ninety
90
3.twenty~ninety(20-90)表示“几十”，
几十的整十位数是在个位数后加后缀-ty,读[ti]。但要注意加了-ty之后，个位数上的听定就有变化。eg：twenty(20), thirty(30), forty(40), fifty(50)...
Presentation
twenty
-one
21
twenty
-two
22
twenty
-three
23
twenty-four
24
twenty-
five
25
twenty
-six
26
基数词21-29
4.21-29直到91-99表示“几十几”，用整数十位数加个位数，中间用连字符“-”把整十位数加个位数，中间用连字符“-”把整十位数和个位数连起来。
eg：twenty-three(23); thirty-seven(37);
forty-five(45); fifty-two(52); sixty-one(61); ninety-nine(99).
Presentation
one hundred
100
5.one hundred“一百”，表示“一百” 用a hundred。要表示200-900，用“数词（two至nine）+hundred”构成。在此结构中，无论“几百”，hundred都不能加-s变复数形式。
500 five hundred
600 six hundred
200
two hundred
105
one hundred and five
125
one hundred and twenty-five
6.几百几十几
需要在几百后用and和几十几连接。
Presentation
1. 0 - 12: (记住每个单词)
2. 13 - 19: -teen (thirteen fifteen eighteen)
3. 20 - 90: -ty (twenty thirty forty fifty eighty)
4. 21 - 99:
十位
个位
5. 100 - 900:
1-9 hundred
6. 101 - 999:
___ hundred and
__
__
个位
十位
__
个位
(ninety-three )
(five hundred )
基数词的规律总结
Summary
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。
基数词的规律顺口溜
Summary
1a
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
While-listening
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
Row 2 should be row 4; row 4 should be row 2.
Post-listening
and / plus
minus
times
Five and six is .
Eight plus nine is .
Eight minus seven is .
Twenty-three times two is .
eleven
seventeen
one
forty-six
Practice
How much is the ______
It’s __________.
$12
$15
$13
jacket
15 dollars
Work in pairs and guess the price.
Practice
How much are the ______
They’re __________.
$25
$28
$29
shoes
29 dollars
Work in pairs and guess the price.
Practice
How much are the _______
They’re __________.
$40
$20
$50
trousers
80 dollars
$90
$80
Work in pairs and guess the price.
Practice
Q1: Who are they
Kate and her mom.
Q2: What are there in the clothes store
a blue sweater
black shoes
red socks
a white T-shirt
blue socks
a white bag
a green hat
a black hat
a green sweater
blue trousers
Prediction
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
Pre-listening
Listen and circle the numbers you hear in 1a.
1c
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27
28 29 30 31
While-listening
Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.
1d
√
While-listening
Mom: Oh, look! I like that blue sweater. __________ is it
Kate: ______________. Oh, I like these socks.
Mom: Oh, no. I don’t like red.
Kate: Do you like this T-shirt
Mom: Yes, I do, but it’s _____ dollars.
Kate: Oh, how much is the green _______
Mom: It’s _____ dollars. But you have a green sweater.
Kate: Mmm.
Mom: Oh, do you like these ______
Kate: Oh, yes. How much are they
Mom: Only ______ dollars.
Kate: OK, I’ll take them.
How much
Fifteen dollars
eleven
sweater
trousers
sixteen
twenty
Listen again and complete the conversation.
Post-listening
Listen and repeat.
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.
Kate: Mmm.
Mom: Oh, do you like these trousers
Kate: Oh, yes. How much are they
Mom: Only sixteen dollars.
Kate: OK, I’ll take them.
Post-listening
Role play the conversation with your partner.
Mom: Oh, look! I like that __________. __________ is it
Kate: ______________. Oh, I like _________.
Mom: Oh, no. I don’t like _____.
Kate: Do you like _________
Mom: Yes, I do, but it’s _____ dollars.
Kate: Oh, how much is the ___________
Mom: It’s _____ dollars. But you have a ____________.
Kate: Mmm.
Mom: Oh, do you like these ______
Kate: Oh, yes. How much are they
Mom: Only ______ dollars.
Kate: OK, I’ll take them.
Post-listening
120
230
460
350
30
80
10
How much is the dress
It’s 460 yuan.
How much is the red cap
It’s 30 yuan.
How much are these black trousers
They’re 80 yuan.
How much are these shorts
They’re 120 yuan.
Talk about the price with your partner.
Practice
Presentation
1e
How much is/are …
It’s/They’re … dollars.
Ask and answer questions about the things in the picture above.
Post-listening
Presentation
Make a passage according to information in the form below.
Things Price
the blue sweater 15 dollars
T- shirt 11 dollars
the green sweater 20 dollars
trousers 16 dollars
Come and buy your clothes at our great sale! We sell all our clothes at very good prices. … are only … dollars. We have … for only… dollars.
Post-listening
Language points
1.英语中数词分为两大类：表示“数目多少”的词为_______,表示“第几”的词为_________。基数词表达方法如下：
1）1~12:没有什么规律,应逐一记忆.3_____8_____11_____12_____
2）13~19规律：其后均有后缀______,表示_______.13________;15
_______;18________,其余的在相应的_________后加teen.
3）20～90规律：其后均有后缀______,表示_______.20________;30
______;40_____,50_____;80_______,其余的在相应的_________后加ty.
4）21～99规律：用________________________,表示_________,25
____________;78____________;96__________
5）100～900规律：用___________________,表示_________
基数词
序数词
eight
eleven
three
twelve
“十几”
thirteen
teen
fifteen
eighteen
个位数
ty
“几十”
twenty
thirty
forty
fifty
eighty
个位数
“几十几”
“整十数+连字符+个位数”
twenty-five
seventy-eight
ninety-six
“具体数字+hundred”
“几百”
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。
3) 表示号码。
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
Language points
My phone number is 239-8271. 我的电话号码是239-8271。
4) 表示年龄。
5) 表示时间。
6) 表示计算。
My father is forty now. 我的爸爸四十岁了。
It's eight twenty now. 现在八点二十分。
Five and three is eight. 五加三等于八。
基数词的用法
Language points
1.—What's the ________ of this sweater
—It's 20 dollars.
A. price B. color C. size D. number
3. They have white T shirts________girls.
A. in B. on C. for D. at
4. —Who is the boy ________ black
—He's my cousin.
A. at B. on C. with D. in
A
C
D
一、单项选择。
Exercises
二、翻译下列短语。
11个篮球 __________________________
14个西红柿 ________________________
23件衬衫 __________________________
28只红袜子 ________________________
35顶帽子 __________________________
1
2
3
4
5
eleven basketballs
fourteen tomatoes
twenty-three shirts
twenty-eight red socks
thirty-five hats
Exercises
1.This bag is three dollars. (对划线部分提问)
____________ is this bag
2.How much are these black shoes (回答)
_________four dollars.
3.I want green.(对划线部分提问)
____________ do you want
How much
They’re
What color
三、根据要求完成句子。
Exercises
三、根据要求完成句子。
4. I like oranges. (变成一般疑问句)
_________ like oranges
5. She likes the green sweater. (变成否定句)
She ______________ the green sweater.
Do you
doesn’t like
Exercises
四、根据要求完成句子。
1．这件白色的毛衣多少钱？(翻译句子)
the
2．那些黑色的鞋18美元。(翻译句子)
Those $18.
3．二十八加二十七是五十五。(翻译句子)
and is ．
How much is
white sweater
black
shoes
are
Twenty-eight
twenty-seven
fifty-five
Exercises
五. 补全对话
A: ________________________
B: Yes, please. I _________ a hat.
A: ___________________________
B: Black.
A: Here you are.
B: ____________________
A: 5 dollars.
B: I’ll take it. Thanks.
A: _______________________
Can I help you
want
What color do you want
How much is it
You’re welcome.
Exercises
Unit 7 How much are these socks (Section B 1a-1e)
ten, eleven, twelve, thirteen, fifteen, eighteen, twenty, thirty
—How much is the green sweater
—It’s twenty dollars.
基数词的构成和用法
—How much are they
—Only sixteen dollars.
Sentences
Grammar
Key words
Summary
Homework
1.Make up a dialogue when you buy the gifts in clothes shop for Mary.（口语）
2.Grasp the numbers 11-31 and finish the exercises on Workbook.（书面）
3.Preview the words in 2a-2c and do the exercises on students’ books in 2a-2c.（预习）
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