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Unit22Lesson3NaturalDisastersWhatdoyouknowaboutnaturaldisasters?WarmupLet’sdoaquiz.1.Whatistheworld'smostexpensivetypeofnaturaldisaster?A.EarthquakesB.Floods2.Ahurricaneisastormwithwindspeedofmphormore?A.90B.743.Whichcountryhasthelargestnumberofactivevolcanoes?A.JapanB.Indonesia4.Mosttsunamis(海啸)arecausedby.A.EarthquakesB.Hurricanes5.Wheredomostearthquakesoccur?A.atmountainousareasB.atplate（板块）boundaries6.Whatdoyoudoinanearthquake?A.RuntoabrickbuildingB.GettoanopenareaLookatthefollowingpictures.Tellwhatkindofdisasterstheyare?droughtsfloodsforestfirestyphoonshurricanestsunamislandslidesvolcaniceruptionsearthquakesDifferenttypesofdisasters:droughts,earthquakes,floods,forestfires,hurricanes,landslides,tsunamis,typhoons,volcaniceruptionsUsefulexpressionsinthetext:1.turnonsb.对…发怒,反对,攻击2.environmentaldisasters环境灾难3.onagrandscale大规模地4.weatherpattern天气模式5.irrigationcanals灌溉渠道6.anumberof许多7.inarmedconflict武装冲突8.resultin导致,造成9.forestfires森林火灾10.wipeout去除,抹去11.havearoughtime饱受痛苦12.killerquakes致命地震13.recoverfrom从…中恢复14.inthemindsof在…记忆中15.getover恢复16.separationfrom与…的分离17.earnone’sliving谋生18.constructshabbyhomes搭建破烂房屋19.poorclaysoil贫瘠土地20.falldown倒塌21.thelargeamountsof大量的22.thedestructionof破坏23.asaresult结果24.withintherangeof在…范围内25.atrandomtimes随时26.inadvance提前,预先27.beaboutto将要做…28.atrisk遭受危险29.tosomedegree从某种程度而言30.rollacross席卷While-readingTask1.Readthetextandcompletethegapsinthetext,usingthereadingstrategies.Readingstrategies:completingtextswithsentencegaps(a)readthetexttogetthegeneralidea.(b)readaparagraphwithasentencegapandidentifythetopic.(c)readthesentencesbeforeandafterthegapandlookforcluesaboutthemissingsetence.(d)certainwordsmayhelpyou:timereferences,pronounreferences,linkingwords.(e)decidewhichsentencegoesinthegap.checkthatitfitsthesentencesbeforeandafterit.(a)Butevidenceshowsthat73,000yearsagotherewasamuchgreatereruption.(b)EvenEuropehassufferedandlargeareashavebeenunderwater.(c)Thatisprobablynotthemostimportantfactoreither.(d)Third,theotherbitsoflandyoumighthavebeenabletofarmarenowuseless.(e)Ontopofthataddglobalwarming.(f)Forexample,theYellowRiver,oncefamousforflooding,failedtoreachtheseaatallfor226daysin1997.(g)Oneanswerisoverpopulation.(5)(1)(4)(2)(3)Task2.Readagainandtellwhichofthefollowingstatementsaretrue(T)andwhicharefalse(F).①Thejournalist’sattitudetowardsthefutureisoptimistic.②Thepopulationgrowthismostlyinthedevelopedworld.③Overpopulationaddstoglobalwarmingandthuscausesmorehurricanes.④Therearemorethan300activevolcanoeswhicherupteachyear.⑤DustfromtheeruptionofMtTamborain1815cooleddownthefollowingsummerinEuropeandAmerica.①Thejournalist’sattitudetowardsthefutureisoptimistic.②Thepopulationgrowthismostlyinthedevelopedworld.③Overpopulationaddstoglobalwarmingandthuscausesmorehurricanes.(F)(F)(T)④Therearemorethan300activevolcanoeswhicherupteachyear.⑤DustfromtheeruptionofMtTamborain1815cooleddownthefollowingsummerinEuropeandAmerica.(T)(F)Task3.FillinthefollowingtablewithinformationfromthetextAreasDisastersstorms&hurricanesearthquakestsunamisdroughtsfloodsAsia,Africa,AmericaandOceaniatheUS,CentralAmericalargeareasofAfrica,thewestoftheUSmanypartsofAsia,EuropeandSouthAmericaIndonesiaandsomeotherpartsofAsiaTask4.Workinpairs.UnderlinethewordsorphrasesthathavethefollowingChinesemeaningsinthetext.①大规模地(headline)②有矛盾；有冲突(A)③导致(A)④彻底毁灭(B)⑤克服；恢复(B)⑥突然袭击(C)⑦以…速度(C)⑧在…范围内(D)⑨处于危险之中(D)⑩在某种程度上(D)onagrandscaleinconflictresultinwipeoutgetoverturnonsbattherateofin/withintherangeofatrisktosomedegreePost-readingTask5.Completethesummaryofthetextwiththephrasesintask4.Summaryandconsolidation①大规模地②有矛盾；有冲突③导致④彻底毁灭⑤克服；恢复⑥突然袭击⑦以…速度⑧在…范围内⑨处于危险之中⑩在某种程度上onagrandscaleinconflictresultinwipeoutgetoverturnonsbattherateofin/withintherangeofatrisktosomedegreeInthelastdecade,environmentaldisastershavebrokenout______________.Forexample，reducedrainfallhas__________droughtsinmanyareas.Somenationshaveevenbeen__________overwater.onagrandscaleresultedininconflictVolcanoesandearthquakesareevenmoredangerous.Avolcaniceruptionin1997nearly_________asmallisland.Morethan500millionpeoplenowlive_________________avolcaniceruption,whileanevengreaternumberofpeoplelive________fromearthquakes.wipedoutwithintherangeofatriskWhyisnaturebeginningto______us?Oneanswerisoverpopulation.Theworld’spopulationisgrowing____________10000peopleanhour._______________,thishasleadtosomeofthemostsevereenvironmentalproblems.turnonattherateofTosomedegreeIfthissituationcontinued,itseemsimpossibleforustocompletely_______theenvironmentaldisasters.getoverWorkingroupsanddiscusswhatwecandotosaveourselveswhen:SpeakingSelf-rescueindisasters①afirebreaksout②anearthquakeoccurs1.Reviewthetextanddoexercisesonpage56,57.2.Workingroupanddesignapostertointroduceself-rescuemeansindisasters.HomeworkThankyou!