(共27张PPT)
Section B (1a-1e)
Unit 7 How much are these socks
学习目标
Key words & phrases :
ten; eleven; twelve; thirteen; fifteen; eighteen; twenty; thirty.
Key sentences:
1. —How much is the green sweater
—It’s twenty dollars.
2.—How much are they
—Only sixteen dollars.
To learn to count the numbers over 10 and find out the rules.
Warming up
— How much is this…
— It’s…dollars.
— It’s $ 3.
— It’s $ 7.
— Please down.
— It’s $ 4.
— You are great.
— Please up.
You only have 3 guesses.
($2-$8)
Guess the price
Let's guess
Let's guess
($20-$25)
($15-$20)
($10- $15)
— How much is this…
— It’s… dollars.
$ 18
— How much are these…
— They’re…dollars.
$ 23
$ 2
$ 14
($1-$5)
$ 11
($7-$12)
Lead in
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
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
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。
Can you read these numbers
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。
Can you read these numbers
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。
Can you read these numbers
Doggerel (打油诗)
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
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
Count from 10 to 31
Group competition
比一比哪个小组最先数完
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.
数字接龙游戏
Three.
Six.
Nine.
Twelve.
...
Count by three
Group work
Look and say
How much is this skirt
It's ten dollars.
$10
$18
How much are the trousers
They're eighteen dollars.
Look and say
$22
$31
How much is this bag
Twenty-two dollars.
How much is the sweater
Thirty-one dollars.
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
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
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. 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
Read the conversation after the tape.
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.
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 23***271. 我的电话号码是23***271。
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。
Exercises
一、用英文快速说出你看到的数字。
31
13
22
12
25
36
24
19
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
1. — 这双红色的袜子多少钱？
— 12美元。
2. — 那件白色的毛衣多少钱？
— 26美元。
— How much are the red socks
— They’re twelve dollars.
— How much is that white sweater
— It’s twenty-six dollars.
三、翻译下列对话。
Homework
Preview the passage in Section B 2b.
Do the exercises in students’ book.
