Unit 7 How much are these socks? Period 3 (共15张PPT)

(共15张PPT)
Unit 7
How much are these socks
Section B 1e-1e
17
12
15
16
13
18
14
11
19
Can you count the number from 10 to 31
eleven
twelve
seventeen
fourteen
fifteen
sixteen
nineteen
eighteen
thirteen
10
ten
Lead in
21
24
23
22
thirty
25
twenty-six
twenty-seven
twenty-eight
twenty-
nine
twenty-
one
twenty-
two
twenty-
three
twenty-
four
twenty-
five
30
26
27
29
28
thirty-one
31
twenty
20
Lead in
Discussion (组长注意合理把控时间)
Work in pairs:
Check the numbers in 1b.
(前后两人相互提问1b的数字， 小号提问大号,一个说英文，一个说中文)
Work in groups:
1.Speak out the numbers(10-31)
(从大号到小号依次说出下列数字)
2.Check the answers of the task6.(讨论任务六的答案，集思广益)
Show time
1. Show your words. (口展, 车轮战，两两PK)
十一
十二
十三
十八
十四
十五
二十
二十五
三十
eleven
twelve
thirteen
eighteen
fourteen
fifteen
twenty
twenty-five
thirty
分类 表达法 示例
1-12 (有/无)规律，需逐个记忆。 1one 2 two 3three 4four 5five 6six 7seven 8eight 9nine 10ten 11eleven 12twelve
13-19表示“十几” 在个位数后加________。注意特例：___________, ___________, ___________。 13thirteen 14fourteen 15fifteen 16sixteen 17seventeen 18eighteen 19nineteen
teen
thirteen, fifteen, eighteen
Explanation
1.基数词构成
20 - 90表示“整十” 在个位数后加_______。注意特例：________, _______, ______,_______, ________。 20twenty 30thirty 40forty 50fifty 60sixty 70seventy 80eighty 90ninety
21-29…91 - 99:表示“几十几” 由“几十”的单词加上个位数构成，中间用_______连接。如：thirty-two 21twenty-one 29twenty-nine 21thirty-one 39thirty-nine41forty-one
ty
twenty thirty forty fifty eighty
连字符
100-900表示“几百” 用“具体数字+________”表示。 100 one hundred 800 eight hundred
100-999表示“几百几十几” 用“百位数+______+末位数”表示。 208 two hundred and eight
921nine hundred and twenty one
hundred
and
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
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
Explanation
Explanation
He is twelve years old .
1.表示年龄，基数词放在__________之前。
I have three balls.
2.用来表示人/物的数量，放在_______之前；基数词只能修饰(可数名词/不可数名词)。
Class Four Grade 3
3.表示顺序常用格式：名词+数词
Two and three is five.
4.用来计算。几加几看作（单数/复数）。
The shoes are 96 dollars.
He goes home at 6 o'clock
5.用来表示________、________、________。
years old
名词
价格 时间 号码等
Explanation
Have a try
There are___________students in our class, twelve boys and eighteen girl.
What’s six and seven It’s____________.
My father likes baseballs. He has_________
baseballs.
A. twenty nine B.twenty-nine
C.two ten nine D. twenty and nine
thirty-eight
thirteen
B
Recite
整理并背诵笔记
Self-check
( )1.We have ________ students.
A.fourty four B.forty four
C.forty four D.four forty
( )2.—How much are the white shoes？
—Thirty five yuan.　　
—OK. ________.
A.Here you are B.I'll take it
C.I'll take them D.You're welcome
C
C