【学习目标】 Learn some new words and expressions.
【重点难点】 Master important sentence structure
【学习内容】Reading the whole passage
◆ 课前预习
Step 1. New words review
1.expert ____ ________ 2.attend ____________
3.physician ___________ 4.expose ____________
5.cure ____________ 6.challenge _____________
7.victim ___________ 8.absorb ____________
9.suspect ____________ 10.blame ____________
11.pollute _____________ 12.announce __________
◆ 课堂学习
Step2. Fast reading
