外研版七年级英语上册《I'm twelve》PPT免费课件，共20页。
New words
eleven sixteen
twelve seventeen
thirteen eighteen
thirteen nineteen
fourteen twenty
fifteen
Langage point
“How old are you?”用于询问对方的年龄，回答用“I am / I’m+数词+years old.”结构，其中years old可省略。
知识探究 how many… are there?用法
How many … are there?有多少……？
这是询问人或物的数量的句子，结构为______________________________。其答语为________________________________。
如：—How many students are there?
—There are twenty students./Twenty.
Practice
Ask and answer.
-How many pens are there?
-Seventeen./There are seventeen pens.
-How many cars are there?
-Eighteen. /There are eighteen cars.
Homework
1、Must do:
Remember the words and phrases.
2、Choose to do:
Use the key sentences to make more dialogues.
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