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【正文】 o west Amer ica near the sea _____ always ____ a bad place for earthquakes. The number move stop jump felt has been biggest quake ________ in 1906. It ________ a great part of the city and _____ 700 people. Though earthquake cannot be_____, we can do things to make they don39。t destroy the whole city. We mustn39。t build houses _____ the lines ______ earth’s plates join together. We must build them on ____ not on ___ happened destroyed killed stopped along where rock sand San Francisco 1906250,000 people lost homesSan Francisco, 1989A road fell onto another road50 kilometers awayBuildings, not strong enoughPa c ifi c pl a te, N ort h A m eric a n pla t e Build houses, not along... Rocks, not sandWeak fall down, strong stay upDiscuss the following questions: 1. Why do earthquakes happen? 2. What can we do to reduce(減少 ) the damage(破壞 )of the earthquakes? 1. Finish on page 89 in the workbooks。 2. Review Lesson 26 and 27.
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