【预讲练结】人教选修七Unit 3 Under the sea预习
学点整合
1. witness v. 目击; 是发生……的地点（时间，组织等），见证
n.目击者，证人;证明……真实
I thought, at the time, that this was just a story but then I witnessed it with my own eyes many times.
当时我认为只是一个故事罢了，但是后来我亲眼见过多次。(P20)
1)几位居民称目击了这个袭击事件。
Several residents claim _____________________________
2)This city has witnessed great changes since the earthquake.
___________________________________________________
3)一位事故的目击者说司机看起来像醉酒了。
________________________ said the driver appeared to be drunk.
4)The past 30 years ______ many wonders in the development of China.
A. witness B. are witnessing C. have witnessed D. witnessed
2. opposite adj.对面的，另一边的
