2.Brainstorming: When it comes to a disaster,we may think of Wenchuan Earthquake.Doyou know what damage an earthquake will bring about? It is the result of a sudden release of energy in the Earth's crust. 2 Earthquakes may result in diseases，lack of basic necessities.loss of life，generalproperty damage，road and bridge damage and sometimes landslides， fires,floods and even tsunamis.