【目标呈现】
知识目标：
词汇：outgoing , more , than , calm , wild , athletic , twin ,tall , short , thin .
短语：a photo of, look the same , look different, enjoy doing, in common, the same as
句型：1. Is that Sam?
No, that’s Tom. He has shorter hair than Sam.
2. He’s calmer than Sam.
Tom is more athletic than Sam.
3. Liu Ying is not as good at sports as her sister.
Lin Ping is a little more outgoing than me/ I am.
4. I am a little taller than her/ she is.
5. My friend is the same as me. We are both quiet.
My friend is different from me.
语法：形容词的比较级
