题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Earthquakes are quite common. In fact, thousands of earthquakes happen each day. Most of them are   1.  weak to feel, though. During a big earthquake, there is often a big noise first. Then the earth shakes   2.  (terrible) and many houses fall down.

As one of the most deadly natural disasters in the world, earthquakes often result   3. many people being injured or killed. In 2008, a severe earthquake struck China’s Sichuan Province,   4. (kill) more than 80,000 people there.

5.  the great damage and deaths caused by the earthquake itself, other accidents such as fires often follow. More buildings may be destroyed and more deaths may be caused.

For centuries, man 6.  (make) studies of earthquakes. About 2,000 years ago, for example, a Chinese scientist named Zhang Heng invented a machine, 7.  could find out from which direction the earthquake waves came. With the rapid   8. (develop) of modern science and technology, we now know a lot   9.  (much) about earthquakes. However, scientists still have difficulty predicting exactly when and where 10.  earthquake will happen, and can’t stop it from happening.