新标准人教版-选修6-unit5-the-power-of-nature-reading公开课课件.ppt

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1、Globalwarmingnaturaldisastersearthquakethunder/lightningforestfireflooddroughtsnowstormsandstormlandslidehurricanetyphoontornado/cycloneTsunamiVolcanoHaveyoueverseenavolcano?Neartheoceans.Whereisitprobablyforavolcanotoerupt?Howmanytypesofvolcanoesarethere?anextinctvol

2、canoanactivevolcanoadormantvolcano(nolongeractive)(notactivenow,butbeabletobeactiveinthefutre)活火山死火山休眠火山1.Howisavolcanoformed?Therocksundertheearthbecomehotterandhotteranderuptfromthemountain.Boilingrockeruptsfromthecrater;thelavaflowsslowlydownthemountain.gasliquidso

3、lidlava(熔岩)vapor,carbondioxide,nitrogen(氮),sulphur(硫磺)bitsofrockandvolcanicash,etc.cratereruptv.eruptionn.lavaabsolutelyfantasticvolcanicashThehotlavais______________hundredsofmetresintotheair.fountainingfountainManyhouses______________________.areburnttothegroundinpa

4、nicThecrowd__________________asaferplace.aremakingtheirwaytoThedestructionofPompeiiInAugustofAD79,MountVesuviuserupted.Theentireofthemountainexploded,andahugeblackcloudroseintotheair.SoonstonesandhotashbegantofallonPompeii.Whentheeruptionendedtwodayslater,Pompeiiwasbu

5、riedunder20feetofstonesandashes.Almostallthepeopleweredead.AnExcitingJobWhowillclimbintoalivevolcanototakethetemperatureoftheboilingrockinside?volcanologistsCollectandevaluateinformationaboutvolcanoes.Whatkindofthingsmightavolcanologistdo?QuestionsYesNo1Doyoulikeworki

6、ngoutsideaswellasinside?2Doyouenjoytravellingtounusualplaces?3Doyouenjoytakingrisks?4Doyoudislikedoingthesamethingeveryday?5Doyoulikeadventureinyourlife?6Areyouinterestedinstudingrocksandotherthingsthatmakeupthesurfaceoftheearth?Areyousuitableforthiswork?Part1(Para1-2

7、)Part2(Para3-4)Part3(Para5)Thewriter’sjobanditsimportanceThewriter’sexperienceofwatchingthevolcaniceruptionThereasonsforthewriter’senthusiasmabouthisjob.Skimmingthetextandtrytofindoutmainideasofeachpart.ScanningthetextandchoosethebestanswerWhatisthewriter?AHeisadoctor

8、BHeisateacherCHeisascientistDHeisavolcanologistD2.Whendidhefirstseeaneruption?AItwasinthesecondweekafterIarrivedinHawaiiBItw