Some countries have large numbers of earthquakes. Japan is one of them. One of the most serious earthquakes in world history took place in Japan in1923. The shock and fires caused by it destroyed much than 7000 dead.Other countries do not have many .For examples,there are few ear thquakes in Britain,France,Germany 第一段
第二段∶ There is often a great noise during an earthquake,but Railway lines are broken. sometimes many people arekilled in an earthquake. people think earthquakes often happen near volcanoes(火山),but this is not always true . For example,the big earthquake happened in Japan on March,11th. the centers of some are under the sea. The bottom of the sea suddenly moves. the powerful forces inside the earth break the rocks .the coast is rocking and great waves are caused there. these waves travel long
接上面∶ distances and rush over the land when they reach it. then a tsunami(海啸)comes. It is strong enough to break down houses and other buildings,sometimes it breaks more buildings than earthquake itself。 第二段完
第三段∶What kind of building stands up best in an earthquake? A building with concrete (水泥) walls is perhaps the best .A steel frame(框架) will make it even stronger. The frame holds the different parts together and the walls do not easily fall. There is less chance of fire because concrete and steel (钢材)does not burn. This kind of building is the safest . Today modern concrete and steel apartment buildings are commonly seen in cities of japan全文完