(共29张PPT)
Unit 7
How much are these socks?
Section B(1a-1c)
A:How much is the ?
B:It’s dollar .
$ 8
$ 9
$ 7
s
Qucik Responce
$9
$8
$2
A:How much are these ?
B:They’re dollar .
s
Qucik Responce
Do you still remeber?
3512
5896
824671
Can you say the numer quickly?
Can you read these numbers?
eleven
twelve
seventeen
fourteen
fifteen
sixteen
nineteen
eighteen
thirteen
12
13
14
16
17
18
19
11
15
10
ten
thirteen 13
fourteen 14
fifteen 15
sixteen 16
seventeen 17
eighteen 18
nineteen 19
规律：
(1)13～19都是以“个位数＋teen”构成。
Exception(特例)：
thirteen 13
fifteen 15
eighteen 18
Learn these numbers and find out the rules.
twenty
30
40
50
60
70
80
90
thirty
forty
fifty
sixty
seventy
eighty
ninety
20
Can you read these numbers?
twenty 20
thirty 30
forty 40
fifty 50
sixty 60
seventy 70
eighty 80
ninety 90
规律：
(2)20～90整十位数由“个位数＋ty”构成。
Exception：
twenty 20 thirry 30
forty 40 fifty 50
eighty 80
21
34
33
22
45
forty-six
fifty-seven
fifty-eight
seventy-nine
twenty-one
twenty-two
thirty-three
thirty-four
forty-five
46
57
79
58
88
eighty-eight
(21~29) twenty-one … twenty-nine
(31~39) thirty-one … thirty-nine
(41~49) forty-one … forty-nine
(51~59) fifty-one … fifty-nine
(61~69) sixty-one … sixty-nine
(71~79) seventy-one … seventy-nine
(81~89) eighty-one … eighty-nine
(91~99) ninety-one … ninety-nine
规律：
(3) 21～99的两位数的表达是 “整十位数+个位数”，中间加上连字符“-” 。
hundred 百
104
115
128
one hundred and four
one hundred and fifteen
one hundred and twenty-eight
thousand 千
one hundred
200 two hundred
900 nine hundred
…
101—999
规律：
(4)
____ hundred and
__
个位
十位
__
个位
hundreds of+复数名词或代词宾格是固定结构，表示“数以百计的” 是个模糊数字，不是具体数字。在此结构中，hundreds of 前面不能加数词，hundreds of 后面只能用复数名词或复数代词宾格形式。
e.g. hundreds of teachers 数以百计的教师
hundreds of them 他/她/它们中数以百计的（人和物）
27
11
11
49
49
13
73
73
27
12
20
164
80
55
12
68
20
73
13
30
Keen-eyed And Quick-wilied
眼疾嘴快
164
80
68
55
11个足球
14个西红柿
23件衬衫
28只红袜子
eleven soccer balls
fourteen tomatoes
twenty-three shirts
twenty-eight red socks
Traslation
35顶帽子
33个乒乓拍
45条短裤
48件毛衣
57双绿鞋子
55个闹钟
thirty-five hats
thirty-three ping-pong bats
forty-five shorts
forty-eight sweaters
fifty-seven green shoes
fifty-five clocks
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
1b
1. Eleven and fourteen is ____________.
2. Twelve and twenty-four is _________.
3. Forty-five plus five is _______.
4. Seventy-nine minus sixteen is ___________.
twenty-five
thirty-six
fifty
sixty-two
Can you deal with these math problems?
计算: 加 and/ plus 减 minus
乘 multiply …by… 除 … divided …by
fifty-two
forty-five
four
5. Sixty-two minus ten is __________.
6. Multiply five by nine is __________.
7. Eight divided by two is ___________.
one hundred and twenty-seven
four hundred and thiry-nine
Can you deal with these math problems?
计算: 加 and/ plus 减 minus
乘 multiply …by… 除 … divided …by
8.One hundres and forty-three minus sixteen is
________________________________.
9.Three hundred and fity-three plus eighty-six is
________________________________
1. 1—12: (记住每个单词)
2. 13—19: -teen
3. 20—90: -ty
4. 21—99:
十位
__
个位
5. 100—900:
_______ hundred
6. 101—999:
____ hundred and
__
个位
十位
_
__
个位
Summary
(thirteen/ fifteen /eighteen)
(twenty/ thirty/forty/ fifty)
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
1c
Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√ ) the thing Kate buys.
√
1d
1e
Ask and answer questions about the things in the picture above.
How much is the white bag?
It’s seventeen dollars.
How much are the black shoes?
Role-play
They are eighteen dollars.
How much is this ?
It’s dollars.
50
100
30
7
$
$
$5
$
seven
T-shirt
sweater
fifty
shirt
one hundred
hat
five
How much are these …?
They’re …
$3
$30
$10
$12
$1
$2
本节课主要进行听说训练，并学习数字的读法及表达。
Summary
谢谢
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