选修6选修6Unit5The-power-of-nature公开课优质课件

Unit5ThepowerofnatureWarmingup&ReadingUnit5ThepowerofnatureWaHumanbeings’power…Humanbeings’power…Haveyoueverconsideredhowweakhumansarecomparedwithavolcano,hurricaneorearthquake?Canyoulistsomenaturaldisasters?Haveyoueverconsideredhowwnaturaldisasterssandstormtyphoon

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tornadoearthquaketsunamilandslidesnowstormdroughtnaturaldisasterssandstormtyphtsunamiearthquakesnowstormfloodtsunamiearthquakesnowstormflotyphoonsandstormdroughthurricanetyphoonsandstormdroughthurricacyclonetornadolandslidecyclonetornadolandslideHaveyoueverseenavolcano?Haveyouevervolcano-eruptionvolcano-eruptionVesuviusvolcanoVesuviusvolcanoPompeiiPompeii公元79年维苏威火山的爆发掩埋了一座城市！虽然地球史上每一次火山爆发无不令地貌沧海桑田,但公元79年维苏威火山的爆发却的却令一座城市获得了永生--庞贝无法躲过火山的劫难,但它被掩埋封存在渐渐冷却、凝固、变硬的火山灰中,最终竟躲过了上千年岁月的侵蚀。Pompeii公元79年维苏威火山的Pompeiianextinctvolcano(死火山)anactivevolcanotypesofvolcanoesadormantvolcano(休眠火山)anextinctvolcano(死火山)anactWhereismostpossibleforavolcanotoerupt?Neartheoceans.WhereismostpossibleforavWhatdoyouknowaboutvolcano?Doyouknowhowavolcanoerupts?Whatdoyouknowaboutvolcano选修6选修6Unit5The-power-of-nature公开课优质课件Howisavolcanoformed?Therocksundertheearthbecomehotterandhotteranderuptfromthemountain.Howisavolcanoformed?TheroBoilingrockeruptsfromthecrater(火山口);thelava(熔岩)flowsslowlydownthemountain.Boilingrockeruptsfromthecgasliquidsolidlava(熔岩)vapour,carbondioxide,nitrogen(氮),sulphur(硫磺)bitsofrockandvolcanicash,etc.gasliquidsolidlava(熔岩)vapour,Whowillclimbintoalivevolcanototakethetemperatureoftheboilingrockinside?ImagineWouldyouliketobeavolcanologisttoobserveandstudyvolcanoes?Doyouwanttobeavolcanologist?WhowillclimbintoalivevolQuizAreyousuitableforbeingavolcanologist?QuizAreyousuitableforbeingAnExcitingJobAnExcitingJobWhatdoesavolcanologistdo?Istheworkimportant?Hisjobistocollecttheinformationaboutthevolcanoandpredictwherelavawillflowandhowfastsothatthepeopleinthepathofthelavacanbewarnedtoleavetheirhouse.Skimming

Whatdoesavolcanologistdo?Thewriterexpresseshisloveforhisjobandwhyhelovesit.Thewriterdescribeshisjobanditsimportance.Thewriterdescribeshisfirstsightofavolcanoeruption.Thewriterdescribeshisfirstcloserlookatavolcanoeruption.Thewriterstatesagainhisloveforhisworkandvolcanoes.Thewriterexpresseshislove(Para1-2)(Para3-4)(Para5)Whatthewriter’sjobisandtheimportanceofhisjob.Thewriter’sexperienceofwatchingthevolcanoeruption.Thereasonswhythewriterisenthusiasticabouthisjob.(Para1-2)(Para3-4)(Para5)WhPartone(Para.1-Para.2)Whyisavolcanologist’sjobimportant?2)WhereisMountKilauea?3)Whatdoestheword“alive”mean?A.Livingornotdead. B.Activeorlively.C.Continuing. D.Healthy.Itcanwarnpeoplewhenthevolcanoisgoingtoeruptandsavemanylives.InHawaii.CarefulreadingPartone(Para.1-Para.2)Parttwo(Para.3-Para.4)WhyisthelavathatflowsonMountKilaueamoredangerousthantheactualeruption?Thelavacancoveruporburnvillagesinitspath.Therocksfromthevolcanousuallydon’tdamageanythingbecausenoonelivesnearthecrater.Parttwo(Para.3-Para.4)2.Whatmadetheauthorrealizethataneruptionoccurred?MybedbeganshakingAstrangesoundMybedroombecameasbrightasdayRedhotlavawasfountaininghundredsofmetresintotheairAnabsolutelyfantasticsight2.Whatmadetheauthorrealize3.Whatdidthescientistsdoaftertheeruption?Putonwhiteprotectivesuitshelmets,bigbootsSlowlymadeourwaytotheedgeofthecraterLookeddownintothered,boilingcentreClimbeddownintothecratertocollectsomelava3.WhatdidPutonwhiteprotectWhydidthescientistshavetogetclosetothevolcanoafteritbeganerupting?Togetsomelavaforlaterstudy.5.Whywasitdifficultforthewritertowalktowardstheedgeofthecrater?Thewriterworespecialprotectivesuitsthatmadeitdifficulttowalk.WhydidthescientistshavetoPartthree(Para.5)Whatdoesthewriterfindimpressiveevenafterstudyingvolcanoesformorethantwentyyears?Theauthorisimpressedbythebeautyoftheeruptionandalsobyitspotentialtocausegreatdamage.Partthree(Para.5)Whatd1Thewriterdoesn’tmindtheoccasionaldangerofhisjobbecause______.A.Hetravelstounusualplacesandmeetsinterestingpeoplefromallovertheworld.B.Helikesthedifferentwaysofworking.C.Hethinkshisjobthemostimportant.D.Heisexcitedaboutdangersandfeelsalive.Choosethebestanswer:D1Thewriterdoesn’tmindtheAsaresultofthevolcanologist’swork,____.A.otherscientistspredicttheprogressoflavafromthevolcano.B.manypeoplehavebeenwarnedtoleavetheirhomes.C.theeruptioncauseslessdamage.D.theeruptionmaybepreventedbreakingout.

AAsaresultofthevolcanologiWhydidthevocalnologistrunoutofthehouseintobackgarden?A.Becausehisbedbeganshaking.B.Becausehisbedroomsuddenlybecameasbrightasday.C.BecausehethoughttherewasanearthquakeinHawaii.D.Becausehewantedtocollectinformationabouteruption.BWhydidthevocalnologistrun4.Whatdoesthewritermeanbyusing‘lucky’in