Earthquakes-warming up and Listening课件.ppt

重点 1.记住有关自然灾害的英文表达：disaster，flood，typhoon，tsunami，queake； 2.猜测地震后果，知道震前现象，地震原理。 会使用英文表达，如： （1）fall down （2）destroy （3）plate 板块 （4） The buildings were destoyed。 （5）Earth quake happens when two different moving plates meet,push against together. 3.记住知识点（1）right away ，right now（2） out of 4. 完成说、听练习题 Why do you think an earthquake will happen? Part 1听写句子 ①Sometimes two paltes ____ ___and____ ____each other. 有时两个板块相对移动，相互挤压。 move towards push against ②Sometimes they__ for years but at other times they jump and _______is felt. 有时他们数年不动,但是有时他们跳动起来,有了震感 ③Because of the movements of theaes plates, California,China and Japan have __　__ ____． ④Do not buil houses along the line where＿＿＿＿＿＿＿. two plates meet ⑤Make sure you build houses on＿＿＿ rather than ＿＿＿. rock sand Why an earthquake will happen? Part 2 China is a country where many_ happen. 1.make sure:一定，确定 2.on rock 在岩层上 3.weaking buildings 危楼 Answer： 作业 1.阅读课本练习册中练习。(课本64页课后阅读填空) * Unit 4 earthquake Natural disasters hurricane tsunami 海啸 sandstorm typhoon 飓风 台风 沙尘暴 drought Mud-rock flow floods volcanic eruption fire 洪水 干旱 泥石流 火山喷发 火灾 What do you think will happen to the city after an earthquake? earth quake bridges buildings billboaeds people Buildings were estroyed. The bridges fell down. The city was in ruins be killed people be injured After a quake What do you think will happen before an arthquake? 1.Give what you see an English name. 2.What do they do or feel? For example: The cow in the cowshed were nervous 牛棚的牛儿很紧张。 Why do you think an earthquake will happen? 1.The surface of the earth 地表 2.The moving plate 飘移板块 5.Some times two palces ___________ and ___________ each other. 有时两个板块相对移动，相互挤压。 4.The North American plate 北美大陆板块 3.The Pacific plate 太平洋板块 move towards push against 1.Do not buil houses along the line where two plates meet. 2.Make sure you build houses on rock rather than sand. 3. You must make sure houses as strong as possible. Weak buildings w