(共34张PPT)
Section B 1a-1e
Unit 7 How much are these socks
七年级上册RJ
初中英语
1. New words: ten, eleven, twelve, thirteen, fifteen, eighteen,
twenty, thirty
2. Sentences:
① —How much is the green sweater
—It’s twenty dollars.
② —How much are they
—Only sixteen dollars.
Learning goals
Say the price of the following products one by one.
A: These eggs are one dollar.
$2
$5
$1
$4
$3
B: These socks are two dollars.
C: This pencil box is three dollars.
D: This pen is four dollars.
E: That hat is five dollars.
Warming up
$9
$8
$6
$7
F: This T-shirt is six dollars.
G: These apples are seven dollars.
H: That skirt is eight dollars.
I: Those shorts are nine dollars.
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
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.
Compete with your partner. Who reads more quickly
ten ___
fifteen ___
twenty ___
twenty-five ___
thirty ___
eleven ___
sixteen ___
twenty-one ___
twenty-six ___
thirty-one ___
twelve ___
seventeen ___
twenty-two ___
twenty-seven ___
thirteen ___
eighteen ___
twenty-three ___
twenty-eight ___
fourteen ___
nineteen ___
twenty-four ___
twenty-nine ___
10
11
12
13
26
29
14
25
27
28
20
21
22
23
24
15
16
17
18
19
30
31
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, 其后均有后缀-teen。注意thirteen、 fifteen、eighteen的拼写。
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
thirty
三十
thirty-one三十一
thirty-two
三十二
thirty-three
三十三
thirty-four
三十四
thirty-five
三十五
thirty-six
三十六
thirty-seven
三十七
thirty-eight
三十八
thirty-nine
三十九
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。
数字接龙游戏
Two.
Four.
Six.
Eight.
...
（1）表示数量，置于名词前。
（2）表示编号，置于名词后。
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。
（3）表示号码
（4） 表示年龄
（5） 表示时间
（6） 表示计算
My phone number is 239-8271. 我的电话号码是239-8271。
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。
How much is this skirt
It's ten dollars.
$10
Make conversations with your partner.
How much are the trousers
They're eighteen dollars.
$18
How much is this bag
Twenty-two dollars.
$22
How much is the sweater
Thirty-one dollars.
$31
Where are the people in the picture
Can you guess their relationship
How much are the black shoes
How much is the blue sweater
How much are the trousers
How much is the T-shirt
How much is the green sweater
1c Listen and circle the numbers you hear in 1a.
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27
28 29 30 31
1d Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.
√
Read the conversation with your partner.
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.
1e Ask and answer questions about the things in the picture.
A: How much is the white bag
B: It's seventeen dollars.
一、用英文快速说出你看到的数字
31
13
22
12
25
36
24
19
Exercises
二、汉译英
11个篮球 __________________________
14个西红柿 ________________________
23件衬衫 __________________________
28只红袜子 ________________________
35顶帽子 __________________________
eleven basketballs
fourteen tomatoes
twenty-three shirts
twenty-eight red socks
thirty-five hats
三、 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.
ten, eleven, twelve, thirteen, fifteen, eighteen, twenty, thirty
①—How much is the green sweater
—It’s twenty dollars.
②—How much are they
—Only sixteen dollars.
Sentences
Key
words
Summary
1. 试着用英语从1数到100，并默写基数词10-31。
2. 假如你和好友Anna正在服装店购物，仿照课本1d编写一段对话。
Homework
THANKS
谢谢聆听！
