EXERCISE：
1. Paragraph 2_____.
2. Paragraph 3_____.
3. Paragraph 4_____.
4. Paragraph 5_____.
A Earthquakes forecast
B Historical records of earthquakes
C Intensities of earthquakes
D Cause of earthquakes
E Indications of earthquakes
F Damaging earthquakes
5. Not all damage during an earthquake is caused ____.
6. Not all earthquakes are strong enough ___.
7. Scientists have been working hard to warn people ___.
8. Earthquakes can be predicted by observing ___.
A by the quake itself
B not be prevented
C to cause damage of property and loss of lives
D of a possible earthquake
E the unusual behaviors of some animals
F the strong behaviors of human beings
參考答案： C D A E A C D E