Unit 4 Earthquakes Free talk:Have you ever experienced any natural disasters? Can you tell some kinds of natural disasters?fire台风台风/飓风飓风 typhoon/hurricanetornado龙卷风龙卷风snow slide雪崩雪崩mudflow泥石流泥石流volcano eruption火山爆发火山爆发sandstorm沙尘暴沙尘暴flood水灾水灾旱灾旱灾海啸海啸droughttsunamiearthquakeDo you know some earthquakes happened in China?July28th,1976A terrible earthquake happened in Tangshan.Can you describe how terrible the earthquake was?2008.5.12 Wenchuan Earthquake2010.4.14 Yushu EarthquakeImagine there has been a big earthquake.TangshanSan FranciscoThe city lay in ruins(废墟）废墟）.The buildings fell down.倒塌倒塌 Roads might crack. 开开 裂裂Many people were killed or injured.受伤的受伤的A great number of people lost their homes.许多，大量许多，大量1. The roads, bridges and railways are destroyed.2. The buildings fall down.3. Roads may crack.4. The electricity and water power are cut off.5. The whole city lies in ruins.6. All things are cut into pieces.7. Many people are killed or injured.8. A large number of people are homeless. Is it always calm before a storm?wellfishanimalsskymicewhat may happen before an earthquake?Guess: There There are are bright lightbright lights s in the sky.in the sky. The animals are too nervous to sleep/eat, such as dogs, pigs,snakes and chickens.Mice run outof the fields.Fish jump out ofbowls and ponds.There are cracks on the wells.The water in the well rise and fall.汶川地震汶川地震的前兆的前兆震前动物有预兆，群测群防很重要。震前动物有预兆，群测群防很重要。 牛羊骡马不进圈，猪不吃食狗乱咬。牛羊骡马不进圈，猪不吃食狗乱咬。 鸭不下水岸上闹，鸡乱上树高声叫。鸭不下水岸上闹，鸡乱上树高声叫。 冰天雪地蛇出洞，大猫携着小猫跑。冰天雪地蛇出洞，大猫携着小猫跑。 兔子竖耳蹦又撞，鱼跃水面惶惶跳。兔子竖耳蹦又撞，鱼跃水面惶惶跳。 蜜峰群迁闹轰轰，鸽子惊飞不回巢。蜜峰群迁闹轰轰，鸽子惊飞不回巢。 家家户户都观察，综合异常作预报。家家户户都观察，综合异常作预报。What shall we do if an earthquake happens?DiscussionDont be nervous and keep calm.Dont try to run out of the classroom.Protect your head by putting your bag on your head.Squat or sit down under your desk.Leave the classroom after the earthquake.Imagine your home begins to shake and you must leave it right away. You have time to take only one thing. What will you take? Why?I want to take money, books, food, water, clothes Because Discussionwatermoneyidentity cardfoodbooksclothescomputermappictures of familymobile phoneradioThank you for your attending!