Unit 7 How much are these socks? Section B (1a-1e) 课件(共26张PPT，无音频)2023-2024学年人教版七年级英语上册

(共26张PPT)
How much are these socks
Unit Seven
Section B
(1a-1e)
数词
1.基数词：表示数量多少的词，如 one， six...
2.序数词：表示先后顺序的词：第一 first，第二second...
Numbers(0-9)
four
zero
one
two
three
five
six
seven
eight
nine
Numbers(10-12)
ten
eleven
twelve
规则1：
从zero到twelve， 拼写和读音没有什么规律，
逐一记忆；
Numbers(13-19)
规则2：
从thirteen 到nineteen, 表示“十几”，其后均有后缀-teen。注意thirteen, fifteen, eighteen的拼写。
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
Numbers(20-90)
规则3：
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。
twenty
thirty
forty
fifty
sixty
seventy
eighty
ninety
Numbers(21-28)
规则4：
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-one
twenty-two
twenty-three
twenty-four
twenty-five
twenty-six
twenty-seven
twenty-eight
one two three four five six seven eight nine
ten eleven twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
twenty
thirty
forty
fifty
sixty
seventy
eighty
ninety
twenty-one … twenty-nine
thirty-one … thirty-nine
forty-one … forty-nine
fifty-one … fifty-nine
sixty-one … sixty-nine
seventy-one … seventy-nine
eighty-one … eighty-nine
ninety-one … ninety-nine
one hundred
Learn these numbers and find out the rules
Find out the rules of the numbers
1） 13~19 规律：个位数字后加 -teen
注意：thirteen, fifteen, eighteen
2）21～29及31~39等数字的规律：
twenty或thirty后加连字符，再加个位数
3）20、30等表示几十的数，大部分构成形式为：个位数后加ty，
注意twenty, thirty, fifty
Try it
1. twenty-six － twelve － nine = _______
2. sixteen ＋ eight ＋ eleven = _________
3. eighteen － seven ＋ fifteen = ___________
4. thirteen＋fourteen－twenty-five = _____
5. twenty-nine－thirteen－ten = _________
6. thirty-nine － twenty － five =_________
five
thirty-five
twenty-six
two
six
fourteen
1,234,567,890
349位教师
995位学生
几百名教师
One billion two hundred and thirty-four million five hundred and sixty-seven thousand eight hundred and ninety
three hundred and forty-nine teachers
nine hundred and ninety-five students
hundreds of teachers
Read and guess what is the relationship(关系) between them.
Listen and write down the items(物品) they are talking about.
blue sweater
socks
T-shirt
green sweater
trousers
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
1b Compete with your partner. Who reads more quickly
和你的同伴比一比，谁读得更快？
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
29
25
27
28
30
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
They’re eighteen dollars.
It’s fifteen dollars.
They’re sixteen dollars.
It’s eleven dollars.
It’s twenty dollars.
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.
1d Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.
√
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.
Listen again and answer
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.
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.
Tapescripts:
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 above.
一、填表格，记数字。
10 11 15
ten thirteen twelve
20 18 30
sixteen nineteen
26 28 39
twenty-one thirty-five
eleven
13
fifteen
12
twenty
16
eighteen
19
thirty
twenty-six
21
twenty-eight
35
thirty-nine
Exercises
二、做数学题，学英语。
1. twenty-six － twelve － nine = _______
2. sixteen ＋ eight ＋ eleven = _________
3. eighteen － seven ＋ fifteen = ___________
4. thirteen＋fourteen－twenty-five = _____
5. twenty-nine－thirteen－ten = _________
6. thirty-nine － twenty － five =_________
7. twelve ＋ thirteen － fifteen= _________
8. nineteen －eleven ＋ twenty =___________
five
thirty-five
twenty-six
two
six
fourteen
ten
twenty-eight
Homework
1. Ask and answer price with partners.
2. write the numbers 0~31.
10，20，30，40...100.
参照1b。