职称英语综合类概括大意练习题十三_第2页

　　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

　　KEY： C D A E A C D E