(共17张PPT)
Unit 7
How much are these socks
Section B（1a-1e）
核心单词
1.____________num. 十
2.____________num. 十一
3.____________num. 十二
4.____________num. 十三
5.____________num. 十五
6.____________num. 十八
7.____________num. 二十
8.____________num. 三十
ten
eleven
twelve
thirteen
fifteen
eighteen
twenty
thirty
Self-study
9.___________n. (pl.) 衣服；服装
10.___________n. 商店
11.___________v. 购买；买
12.___________v. 出售；销售；卖
13.___________adj. 所有的；全部的
14.___________adv. 很；非常
15.___________n. 价格
16.___________n. 男孩
clothes
store
buy
sell
all
very
price
boy
Review
ten eleven twelve thirteen fourteen
fifteen sixteen seventeen eighteen nineteen
twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one
1a
Listen and repeat.
Row 1: ten___ eleven___ twelve___ thirteen___
fourteen___
Row 2: twenty-five____ twenty-six_____ twenty-seven___
twenty-eight____ twenty-nine___
Row 3: twenty____ twenty-one____ twenty-two___
twenty-three___ twenty-four____
Row 4: fifteen______ sixteen______ seventeen______
eighteen_______ nineteen_____
Row 5: thirty____ thirty-one_______
1b
Write the numbers in 1a next to the correct words. Which rows of numbers are in the wrong places
10
11
12
13
14
25
26
27
28
29
20
21
22
23
24
15
16
17
18
19
30
31
Row 2
Row 4
one two three four five six seven
eight nine ten eleven twelve
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 one hundred and one
Find out the rules:
基数词的规律
[基数词]，不难记，找出规律很容易：
零至十二形各异，一个一个单独记。
如果表示是“十几”，后面要加-teen。
thirteen，fifteen形异需留意，eighteen只有一个t
表示“几十”要加-ty， twenty, thirty, forty, fifty, eighty是特例
表示数字“几十几”，连字符号别忘记。
hundred不可数，所以不加s
Can you count these numbers in English
1 2 3 4 5 6 7 8 9 10
11
12 20 21 22 23 24 25 26 27 28 29
13 30 31 32 33 34 35 36 37 38 39
14 40 41 42 43 44 45 46 47 48 49
15 50 51 52 53 54 55 56 57 58 59
16 60 61 62 63 64 65 66 67 68 69
17 70 71 72 73 74 75 76 77 78 79
18 80 81 82 83 84 85 86 87 88 89
19 90 91 92 93 94 95 96 97 98 99
100
Groupwork
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31
Listen and circle the number you
hear in 1a.
1C
1d
Listen and circle the things in the picture that Kate and her mom talk about. Check (∨) the things Kate buys.
Pairwork:
Mom: Oh, look. I like that blue sweater. How much is it
Lisa: Fifteen dollars. Oh, look. I like these socks.
Mom: Oh, no. I don’t like red.
Lisa: Do you like this T-shirt
Mom: Mmm, yes, I do, but it’s eleven dollars.
Lisa: Oh. How much is the green sweater
Mom: It’s twenty dollars. But you have a green sweater.
Lisa: Mmm.
Mom: Oh, do you like these trousers
Lisa: Oh, yes. How much are they
Mom: Only sixteen dollars.
Lisa: OK, I’ll take them.
1e
How much is the blue sweater
It’s 15 dollars.
Ask and answer questions about the things in the picture above. (就上图中的物品与同伴进行问答。）
Summary
numbers
one two there 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
tewnty-two
twenty-three
...
thirty-five
...
ninety-eight
无规则 各自独立
以teen结尾
整十-个位
以ty结尾
一、Fill in the blanks with the correct numbers.
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
Exercise:
二. Translate the following expressions.
1. 1个商店
2. 12个橘子
3. 15件衬衫
4. 20张照片
5. 31天
6. 23岁
7. 18美元
8. 27件T恤
a store
twelve oranges
fifteen shirts
twenty photos
thirty-one days
twenty-three years old
eighteen dollars
twenty-seven T-shirts
1. 复习记忆本课时所学的生词。
2. 做个小调查，编写三个问答句，询问
一下你的朋友所穿衣服的价格，注
意名词的单复数形式哟！
—How much is/are…
—It’s/They’re.
