北师大版模块8-Unit-22-lesson3-Natural-Disasters课件

Unit22EnvironmentalProtection北师大高中英语第八模块NaturalDisastersStep1LeadtoLookatthefollowingpicturesandpointoutwhatkindofdisasterstheyare?Aretheycausedbypeople?Aretheymadeworsebypeople?Aretheynatural?图为因干旱而龟裂的河道droughtfloodearthquakeVolcaniceruptionVolcaniceruptionForestfireshurricane飓风卡特里娜袭击美国Typhoon台风Tsunami海啸Landslide:山崩,泥石流BeforeyoustartExercise1WhichofthedisastersintheKeyWordsdoyouthinkare:KeyWords:Disastersdroughts,earthquakes,floods,forestfires,hurricanes,landslides,tsunamis,typhoon,volcaniceruptions,Causedbypeople?Madeworsebypeople?Natural?forestfires,hurricanesearthquakes,floods,droughts,tsunamis,hurricanes,volcaniceruptions,forestfires,landslidesStep2:Task:LearntouseReadingStrategies:Completingtextswithsentencegaps(Inlesson3,P38,Unit21,Module7,wehavelearnthereadingstrategies:Sequencingofinformation,whicharequitesimilartostrategieslearntinthislesson.)1stReadingReadingstrategy1→skimmingReadthetexttogetgeneralidea.(2m’)(Whenyouencounternewvocabulary,skipit.)Naturaldisastersaregettingworsebecauseofhumanactivities.Readingstrategy2→skimmingReadaparagraphwithasentencegapandidentifythetopic,e.gdisasters.Para1:Para2:Para3:Para4:Para5:AAnexampleofvolcaniceruption&earthquakeshowtheirthreattoourworld.E.Causesofnaturaldisasters—Urbanization&industrializationC.OverpopulationincitiesmakesmorepeopleinthedangerofnaturaldisastersD.ExpertspredictthatnaturaldisasterswillgetworseB.Examplesshownaturaldisastersbecomecommon2ndreadingReadingstrategy3→Readthesentencesbeforeandafterthegapandlookforcluesaboutthemissingsentence,e.g.isitanexampleofwhatismentionedbefore?Readingstrategy4→Certainwordsmayhelpyou:timereferences(then),pronounreferences(it,that),linkingwords(however).namely,Scanning:Lookforclues/referencewords+1.Tsunamis,floodingunderwaterB2.Irrigationcanals,watertheYellowRiverF4.Thishasbeencausedbycarbondioxide&destructionofforest.GlobalwarmingE5.难（排除法）…studiesvolcanoes,theworsteruptiontherewasamuchgreatereruption.AReferences3.Population,growingatthedisturbingrateoverpopulationGReadingstrategy5→Decidewhichsentencegoesinthegap.Checkthatitfitsthesentencesbeforeandafterit.(Areallparagraphscoherent?)Step3:Readthetextagainandanswerthesequestions.1Whatistheattitudeofthejournalisttowardsthefuture?2Whoaremostlikelytobethevictimsofnaturaldisaster?3Whyaretherenowmorehurricanes,floodsanddroughts?Pessimistic/negativePoorpeopleOverpopulationandmismanagementoftheworld’sresourcesBecausehalftheworld’spopulationlivesincities,morethan500millionpeoplenowlivewithintherangeofvolcaniceruptionandanevengreaternumberofpeopleliveatriskfromearthquakes.5Whatcouldbethebiggestthreattotheplanetinthefuture?avolcaniceruption6Whateffectsmightthisthreathave?Itmightsendtheplanetintowinterforyears.4Whyarevolcanoesandearthquakesmoredangerousnow?Step4:lookatSomepicturesaboutdroughtsinthesouthwestofChina土地的裂缝触目惊心节水进行时---山村学生的节水生活大旱面孔---无泪诉说温家宝到云南指导抗旱救灾工作letˊtakeactionFreetalk:Whatisyouropinionaboutthedroughts?Whatwillyoudo?Step5:Homework1.Readthetextagainandagain,findsomeimportantlanguagepoints.2.DoEx5,6onpage113.Writeashortpassageaboutanaturaldisaster.5-8sentenceswillbeenough.