《How much are these socks?》SectionB PPT教学课件(第1课时)

人教版七年级英语上册《How much are these socks?》SectionB PPT教学课件(第1课时)，共35页。

Language Goals

To learn to count the numbers over 10 and find out the rules.

To review how to ask about prices. 

Emotional Goal

To learn to know and use more numbers in our daily life. 

Can you count them in English?

How many hands are there in the picture?

Can you deal with these math problems? 

1. One and two is ________.

2. Eleven and twenty-four is _________. 

3. Forty-five plus five is _______.

4. Eight minus three is _______.

5. Sixty-two minus ten is __________.

6. Multiply five by nine is __________.

7. Eight divided by two is ___________.

Language points

1. 基数词的表达

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. 基数词的用法

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

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?

… … …

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