2. Learn to listen to the key words （学会听关键词）
3. Learn to make the description. （学会作描述）
4. Lead the students to cultivate the good personal traits and the spirit of loving motherland （引导学生培养良好的性格和爱国情操）
II. The focus and difficult points :
1. the focus : the target language
Is that Sam? No, that’s Tom. He has shorter hair than Sam.
He’s calmer than Sam.
主语（sb / sth）+ be +形容词比较级 + than +…
2. the difficult points: the comparatives with –er/ier and more
