選修6選修6Unit5The-power-of-nature公開(kāi)課優(yōu)質(zhì)課件

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

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tornadoearthquaketsunamilandslidesnowstormdroughtnaturaldisasterssandstormtyphtsunamiearthquakesnowstormfloodtsunamiearthquakesnowstormflotyphoonsandstormdroughthurricanetyphoonsandstormdroughthurricacyclonetornadolandslidecyclonetornadolandslideHaveyoueverseenavolcano?Haveyouevervolcano-eruptionvolcano-eruptionVesuviusvolcanoVesuviusvolcanoPompeiiPompeii公元79年維蘇威火山的爆發(fā)掩埋了一座城市！雖然地球史上每一次火山爆發(fā)無(wú)不令地貌滄海桑田,但公元79年維蘇威火山的爆發(fā)卻的卻令一座城市獲得了永生--龐貝無(wú)法躲過(guò)火山的劫難,但它被掩埋封存在漸漸冷卻、凝固、變硬的火山灰中,最終竟躲過(guò)了上千年歲月的侵蝕。Pompeii公元79年維蘇威火山的Pompeiianextinctvolcano(死火山)anactivevolcanotypesofvolcanoesadormantvolcano(休眠火山)anextinctvolcano(死火山)anactWhereismostpossibleforavolcanotoerupt?Neartheoceans.WhereismostpossibleforavWhatdoyouknowaboutvolcano?Doyouknowhowavolcanoerupts?Whatdoyouknowaboutvolcano選修6選修6Unit5The-power-of-nature公開(kāi)課優(yōu)質(zhì)課件Howisavolcanoformed?Therocksundertheearthbecomehotterandhotteranderuptfromthemountain.Howisavolcanoformed?TheroBoilingrockeruptsfromthecrater(火山口);thelava(熔巖)flowsslowlydownthemountain.Boilingrockeruptsfromthecgasliquidsolidlava(熔巖)vapour,carbondioxide,nitrogen(氮),sulphur(硫磺)bitsofrockandvolcanicash,etc.gasliquidsolidlava(熔巖)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