Step2：Lead-in

（1）Revision fat、thin、tall、short、big、small these words.

T: Let's say and do some actions. I say "long" and you say "short" Are you ready? Now ,together! （出示幻灯片）

tall---short

fat---thin

old---young

long---short

big---small

（复习巩固所学形容词，为后面的教学做铺垫）

Step3：Presention

Active1 play the cartoon and anser：

Who is the little boy ?(This is Sam.)

How old was he then?（He was two .）

Now let's learn how to discribe the past with Sam.

(1)listen to the tape again, read after it and pay attend the prounaction about "was".(板书"am /is"和"was")

(2)(出示幻灯片)Who is she ? 讲授单词"was,hair ,then".

(3)讲授一般过去时的用法（出示幻灯片）

(3)Discribe the photo with"was".（小组活动）

(4)listen again ，read and act.

Active2