复习目标：1.Words and useful expressions in this unit .
2. Make requests and apologize.
重难点：Would you mind +v-ing …?
Could you please +v… ?
一.课前预习：
Read through this unit and finish these exercises :
Task 1. Words and useful phrases in this unit :
1任务________ 2 海报__________ 3 或许__________ 4 礼节_________
5亚洲的___________ 6 允许_________ 7 声音___________ 8 公众 ____________
9 抽烟__________ 10 香烟___________11 批评 __________12 垃圾 ____________
