介绍火山喷发英语课件省公开课金奖全国赛课一等奖微课获奖PPT课件.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2021/10/3,#,How much do you know aboutvolcano eruption(,火山喷发,)?,011219 李亮,1/18,Part one,：,what is volcano?,Some words about volcano：,active volcano,活火山,extinct volcano,死火山,volcanic ash,火山灰,reawaken,再度觉醒,2/18,volcanologist,火山学家,rock-magma,岩浆,crustal movement,地壳运动,lava flow,熔岩流,Volcanic Explosivity Index,火山暴发指数,3/18,volcano,A volcano is a place on the Earths surface(or any other planets or moons surface)where molten rock,gases and pyroclastic debris（火山碎屑）erupt through the earths crust.,4/18,Volcanic classification,active volcano(,活火山,),extinct volcano,（,死火山,）,dormant volcano（,休眠火山,）,5/18,Eruption type,Quiet eruption（,宁静式喷发,）,Blasting fierce type eruption（,爆烈式喷发,）,Middle type eruption（,中间式喷发,）,6/18,7/18,8/18,9/18,Part two:,Volcanic eruption is how creates?,Originally,the interior of the earth filled with hot magma.Under tremendous pressure,from weak magma will break through the earths crust and,where spouted out,causing the volcano.,10/18,This picture show us the process about the forming of volcano.,11/18,Part three:,Several big active volcanos in the world,12/18,1,.The,Laki(拉基),volcano in Iceland,2.Kilauea（基拉维厄）,Volcano,3.Mauna Loa(冒纳罗亚),volcano,4.Vesuvius(维苏威),Volcano,13/18,5.Mount St Helens(圣海伦斯),volcano,6.Monte Etna(埃特纳),volcano,7.Sangay(桑盖),National Park volcano,14/18,Part four:,the harms and benefits of volcano,Harm,1.Cause great bad impact on the global climate,2.Ash and rain mixed form mudslides（泥石流）,3.ash can cause respiratory diseases（呼吸道疾病）,15/18,many of the volcanic materials have important industrial and chemical uses.,2.Volcanic ash that has been weathered(风化)greatly improves soil fertility.,Benefits,16/18,Part five:,how to protect yourself in the volcano eruption?,The only way,Go while the going is good.,(三十六计，走为上计。),17/18,Thank you for your watching!,18/18,