1.When and where was the worst earthquake ever reported?
In 1556 in China.
2.What may be talked about in the seventh paragraph?
What people will do to prepare for earthquakes.
[积累]
1.regularly adv. 有规律地,定期地
2.mountainous adj. 多山的
3.worry vt. 使……担心
4.prepare for 为……准备