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ID:56477661
大小:5.03 MB
页数:50页
时间:2020-06-19
《新标准人教版_选修6_unit5_the_power_of_nature_reading公开课课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Globalwarmingnaturaldisastersearthquakethunder/lightningforestfireflooddroughtsnowstormsandstormlandslidehurricanetyphoontornado/cycloneTsunamiVolcanoHaveyoueverseenavolcano?Neartheoceans.Whereisitprobablyforavolcanotoerupt?Howmanytypesofvolcanoesarethere?anex
2、tinctvolcanoanactivevolcanoadormantvolcano(nolongeractive)(notactivenow,butbeabletobeactiveinthefutre)活火山死火山休眠火山1.Howisavolcanoformed?Therocksundertheearthbecomehotterandhotteranderuptfromthemountain.Boilingrockeruptsfromthecrater;thelavaflowsslowlydownthemoun
3、tain.gasliquidsolidlava(熔岩)vapor,carbondioxide,nitrogen(氮),sulphur(硫磺)bitsofrockandvolcanicash,etc.cratereruptv.eruptionn.lavaabsolutelyfantasticvolcanicashThehotlavais______________hundredsofmetresintotheair.fountainingfountainManyhouses______________________
4、.areburnttothegroundinpanicThecrowd__________________asaferplace.aremakingtheirwaytoThedestructionofPompeiiInAugustofAD79,MountVesuviuserupted.Theentireofthemountainexploded,andahugeblackcloudroseintotheair.SoonstonesandhotashbegantofallonPompeii.Whentheerupti
5、onendedtwodayslater,Pompeiiwasburiedunder20feetofstonesandashes.Almostallthepeopleweredead.AnExcitingJobWhowillclimbintoalivevolcanototakethetemperatureoftheboilingrockinside?volcanologistsCollectandevaluateinformationaboutvolcanoes.Whatkindofthingsmightavolca
6、nologistdo?Areyousuitableforthiswork?Part1(Para1-2)Part2(Para3-4)Part3(Para5)Thewriter’sjobanditsimportanceThewriter’sexperienceofwatchingthevolcaniceruptionThereasonsforthewriter’senthusiasmabouthisjob.Skimmingthetextandtrytofindoutmainideasofeachpart.Scannin
7、gthetextandchoosethebestanswerWhatisthewriter?AHeisadoctorBHeisateacherCHeisascientistDHeisavolcanologistD2.Whendidhefirstseeaneruption?AItwasinthesecondweekafterIarrivedinHawaiiBItwasintheseconddayafterIarrivedinHawaiiCItwasinthethirdnightafterIarrivedinHawai
8、iDItwasinthefirstnightafterIarrivedinHawaiiA3What’sthejobofthewriter?ACollectinginformationfordatabaseaboutMountKilaueaBAnalyzetheinformationCHelpthevillagerstomovetheirhomeDTravel
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