學(xué)案：unit-4-natural-disasters-導(dǎo)讀話題妙切入-【含解析】(編輯修改稿)
2025-04-03 02:02 本頁面
【文章內(nèi)容簡(jiǎn)介】 thquakes are under the sea. The bottom of the sea suddenly moves. The powerful forces inside the earth break the rocks. The coast is shaken and great waves appear. These waves, also known as seismic waves (地震波) or tsunamis, can travel long distances and rush over the land when they reach it. They are strong enough to break down houses and other buildings. Very often fires follow the most serious earthquakes. In the 1906 San Francisco earthquake, a numbers of fires were burning in the city. The water pipes were also shaken and broken, so it w
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