资源简介

(共19张PPT)
Section B 1a-1e
Unit 7
How much are these socks
— How much is this…
— It’s…dollars.
— It’s $ 3.
— It’s $ 7.
— Please down.
— It’s $ 4.
— You are great.
— Please up.
You only have 3 guesses.
($2-$8)
Guess the price
Let's guess
($20-$25)
($15-$20)
($10- $15)
— How much is this…
— It’s… dollars.
$ 18
— How much are these…
— They’re…dollars.
$ 23
$ 2
$ 14
($1-$5)
$ 11
($7-$12)
ten
eleven
twelve
thirteen
fourteen
fifteen
十
十一
十二
十三
十四
十五
Can you count the numbers
sixteen
seventeen
eighteen
nineteen
twenty
thirty
十六
十七
十八
十九
二十
三十
17
12
15
16
13
18
14
11
19
Can you read them
eleven
twelve
seventeen
fourteen
fifteen
sixteen
nineteen
eighteen
thirteen
10
ten
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
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
hundred
Learn these numbers and find out the rules:
掌握基数词的拼写。
基数词的表达法
分类 表达法 示例
1-12 拼音和读写没有什么相似之处，无规律可循 One, two, three
13-19 在相应的个数后加-teen（13, 15, 18较特殊） Thirteen, fourteen, fifteen, sixteen, seventeen, eighteen
20-90 整十数 在相应的个数后加-ty（20, 30, 40, 50, 80较特殊） Twenty, thirty, forty, fifty, eighty
1-99 非整十数 整十数+连字符+个位数 Twenty-one, thirty-two, forty-three
1a
Listen and repeat.
10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31
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
19
17
30
18
31
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
in 1a.
(小组竞赛：你能做出这些数学题吗 )
1. One and two is ________.
2. Eleven and twenty-four is _________.
3. Forty-five plus five is _______.
4. Eight minus three is _______.
three
thirty-five
fifty
five
Can you deal with these math problems
5. Sixty-two minus ten is __________.
6. Multiply five by nine is __________.
7. Eight divided by two is ___________.
fifty-two
forty-five
four
计算： 加 and / plus 减 minus
乘 multiply… by… 除 … divide by…
Look and answer quickly.
How much are the black shoes
How much is the blue sweater
How much are these trousers
How much is the T-shirt
How much is the green sweater
1d
Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.
√
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.
Kate: Oh. How much is the green sweater
Read the conversation after the tape.
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.
Summary
1.Say the numbers in English:
11,12,13,14,15,16,17,18,19,20,30,40,50,60...
2.What do you see
eighteen kids

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