(板书This ……is ……，强调this 大写)
Ss: Red. (Point to the flower)
T: Yes,(引领学生一起说)This flower is red
Ss:……
Step 2 lead in and presentation
联系上一环节，T拿出一本书来，问“What color is it?”
Ss: Green. (Point to the book)
T: Yes. This book is green. I bought it yesterday. It’s 1 yuan. So it’s very cheap. (板书cheap, 并渗透语音和拼写)
This book is only 1yuan. So this book is cheap.
然后教师出示投影仪上的图片（紫色的长铅笔，标价0.2元）
T: Is it cheap?
Ss: Yes, this pencil is cheap.
教师引导学生说出铅笔的其他特征
S1: This pencil is new.
S2: This pencil is long.
S3: This pencil is … .
(T 教授新词purple用Perfect进行评价，然学生感知perfect的含义)
T: What about this one?
出示另一张图片，上面有一黑白相间形状小巧的MP4,但无标价.
S1: This MP4 is black.
S2: This MP4 is …..
S3: This MP4 is … .
教师出示标价，1200元
T: It’s 1200 yuan. Is it cheap?
Ss: No, it isn’t.
T: It isn’t cheap. It’s expensive. (把expensive板书，领读，操练)
教师出示两张电视的图片。(green and blue)
T: Guess, which one is cheap? Which one is expensive?
让认为绿色电视便宜的同学起立。
Ss: (point to the green TV)This TV is cheap, (point to the blue TV) and this TV is expensive.
让认为蓝色电视便宜的同学起立。
Ss: (point to the blue TV) This TV is cheap, (point to the green TV) and this TV is expensive.