4. (让学生观察2a中的这四个数词，101，185，315，999，找出他们的读写规律。播放这四个数词的录音，让学生跟读。)

T:　 What can you find?

Ss: (用汉语表达：在百位与十位之间加and。在十位与个位之间加连字符“-”)

T:　 You are right.

3. (播放2a录音，让学生跟读到ninety即停。)

T: Listen to 2a and read after the tape.

T:　 Now, listen to the next number. (继续播放2a，让学生听hundred的发音。)

(老师提问全体学生。)

T:　 How to pronounce(发音) the number?

Ss: One hundred.

(板书)

2. (让学生观察2a，学习几十几的读法和写法。)

T:　 Now look at 2a carefully, and find out how to read and write the numbers from 21 to 29.

(让学生试总结：①在十位和个位之间加连字符“-”。②读法：先读十位，再读个位即可。)

1. (老师通过小黑板展示如下内容，学习整十数词。让学生通过观察、比较，找出这两组数词之间在写法上的内在联系。注：用彩色来凸现-teen与-ty。)

T:　 Look at the small blackboard, can you find some rules of the two groups?

(让学生自主归纳、总结，教师最后补充说明。)

T:　 Very good. Let’s read Group A.

(老师指着Group B的数词，让学生朗读。因twenty已学过，学生可能模仿它读出后面的数词。)

T: Now look at Group B, try to read them.

S₄: Twenty.

S₄: Thirty.(老师指向thirty，若学生把重音读错，教师必须及时纠正。)

…

(然后让学生齐声朗读，老师观察有没有读错或不会读的学生。待齐读完毕后，及时纠正读错或不会读的数词。)

(链式操练，纠正个别学生的读音。)

T: Now, let’s read one by one.

S₅: twenty.

S₆: thirty.

(学生依次操练，若有个别学生读音不准，老师要及时纠正。)

2. (由数词0-20的复习，引入整十整佰的学习。)

(运用“What’s … and …?”句型来引入整十的数字。)

T:　 What’s five and fifteen?

S₂: Twenty.(教师帮助学生回答。)

T:　 What’s fourteen and sixteen?

S₃: thirty. (教师帮助学生回答。)

…

(板书)

Step 2　 Presentation 第二步 　呈现(时间:10分钟)

Step 1　 Review 第一步 　复习(时间:10分钟)

1. (师生问候过后，老师在黑板上贴一张大白纸，上面已事先画好一个动物，但线条很浅，在线条上分布0-20之间的数字，直到数字连接完毕，方可显现动物轮廓。)

T:　 Who can help me?

S₁: I can.

T: Good, listen and match (翻译成“连接”)the numbers, OK?

S₁: OK.

T:　 Please match number“0”and“20”.

(学生连线0与20，完毕，老师面向大家。)

T: What can you see now?

Ss: A cat.

T:　 You’re right. Let’s go on(翻译成“继续”).

图片/彩笔/自制价格牌/小黑板/实物/录音机

3. Learn how to ask for and state prices.

How much is it?

It’s only 70 yuan.

2. Learn some expressions about shopping:

(1)-What can I do for you, madam?

-I want to buy some clothes for my daughter.

(2)-May I help you?

-Yes, please. I like the yellow coat.

(3)-Can I try it on?

-Sure.

(4)That’s fine. We’ll take it.

1.(1)Learn some useful words and expressions:

madam, buy, over, there, over there, try, try on, How much …?

(2)Learn words about numbers:

thirty, forty, fifty, sixty, seventy, eighty, ninety, hundred