Unit 7 How much are these socks？ Section B 1a-1e 课件(共20张PPT及音频)

Unit 7 How much are these socks？ Section B 1a-1e 课件(共20张PPT及音频)
＄9
＄3
＄12
＄19
Look at the pictures and answer.
1. How much are these things
2. Do you know more numbers in our life
Warming-up
ten
eleven
twelve
thirteen
fourteen
four
+
teen
→
sixteen
seventeen
nineteen
fifteen
eighteen
10
11
12
13
14
15
18
16
17
19
Numbers
/ten/
/ levn/
/twelv/
/ θ ti n/
/ f ti n/
/ f f ti n/
/ s ks ti n/
/ sev( )n ti n/
/ e ti n/
/ na n ti n/
twenty
thirty
twenty-one
twenty-two
thirty-one
20
30
21
22
31
/ twenti/
/ θ ti/
1. 基数词表达
1) one到twelve，拼写和读音无规律。
2) thirteen到nineteen, “十几”, 在个位数后加后缀-teen, 注意thirteen, fifteen和eighteen。
3) twenty到ninety, “几十”, 以ty结尾, 注意twenty, thirty, forty, fifty, eighty。
4) 21~29直到91~99, “几十几”, 用整十位数加个位表示, 中间用连字符“-” 把十位和个位连接起来。
5) one hundred “一百”, 也可说 a hundred, 可加具体数字, 如nine hundred (900)。此时, hundred要用单数。
2. 基数词用法
基数词只能修饰可数名词，要注意数词和名词在数上要保持一致。如：
一名学生 one student
两名男孩 two boys
二十个苹果 twenty apples
三十三个鸡蛋 thirty-three eggs
1: 1---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:
十位
_+
个位
5: 100---900:
___ hundred
6: 101---999:
___ hundred and
__
个位
十位
__
_+
个位
Let's play a number game!
1, 2, , 4, 5, , 7, 8, ….
I am happy.
逢3或3的倍数，说“I am happy.”
1a
Listen and repeat.
1a
Can you read these numbers
10
11
12
13
14
15
16
17
18
19
ten
eleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
30
31
32
33
34
35
36
37
38
39
thirty
thirty-one
thirty-two
thirty-three
thirty-four
thirty-five
thirty-six
thirty-seven
thirty-eight
thirty-nine
1b
Write the numbers in 1a next to the correct words. Which rows of numbers are in the wrong places
ten___ eleven___ twelve___ thirteen___ fourteen___
twenty-five____ twenty-six_____ twenty-seven____ twenty-eight____ twenty-nine____
twenty____ twenty-one____ twenty-two____
twenty-three_____ twenty-four____
fifteen______ sixteen______ seventeen______
eighteen_____ nineteen_____
thirty____ thirty-one_____
10
11
12
13
14
25
26
27
28
29
20
21
22
23
24
15
16
17
18
19
30
31
15...
25...
1b
Look at the pictures and answer the questions.
1. Where are the people in the picture
2. Can you guess their relationship (关系)
3. Can you read the price on the price tag
1c
Listen and circle the numbers you hear in 1a.
1d
Listen again. Circle the things in the picture that Kate and her mom talk about.Check (√) the things Kate buys.
√
Listen again and answer the questions.
1d
1. Why doesn’t Kate’s mother buy the socks
2. Why doesn’t Kate’s mother buy the T-shirt
3. Why doesn’t Kate’s mother buy the green sweater
She doesn’t like red.
It’s eleven dollars.It’s a little expensive(昂贵的).
Kate has a green one.
1e
Ask and answer questions about the thing in the picture.
A:How much is the white bag
B:Umm,It’s seventeen dollars.
I. 将下列算式与相应的结果连起来。
1. 4×5=_____
2. 3+8=_____
3. 5×6=_____
4. 2×9=_____
5. 7+8=_____
6. 3+7=_____
A. ten
B. thirty
C. eleven
D. twenty
E. eighteen
F. fifteen
20
11
30
18
15
10
II. 将下列句子翻译成英语。
1. - 这双红色的袜子多少钱？
- 12美元。
2. - 那两件毛衣多少钱？
- 26美元。
How much is this pair of red socks
It's twelve dollars.
How much are the two sweaters
They're twenty-six dollars.