北师大版高中英语模块课件.ppt

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1、北师大高二Unit22Unit22EnvironmentalProtectionLesson3NaturalDisastersLookatthefollowingpicturesandwhatarehappeninginthepictures?earthquaketsunamiflooddroughtvolcaniceruptionshurricaneforestfiretyphoonlandslideReviewthewordsdroughts旱灾earthquake地震floods洪水,水灾forestfires森林火灾hur

2、ricanes飓风landslides滑坡,山崩tsunamis海啸typhoons台风volcaniceruptions火山爆发Whichofthedisastersdoyouthinkare:causedbypeople?madeworsebypeople?natural?DiscussionReadthearticleandcheckyouranswertothequestions:Whatcausethedisasters?ReadingStrategies:CompletingtextswithsentencegapsR

3、eadthetexttogetthegeneralidea.Readaparagraphwithasentencegapandidentifythetopic,e.g.disasters.Readthesentencesbeforeandafterthegapandlookforcluesaboutthemissingsentence,e.g.isitanexampleofwhatismentionedbefore?Certainwordsmayhelpyou:timereferences(then),pronounreferen

4、ces(it,that),linkingwords(however).Decidewhichsentencegoesinthegap.Checkthatitfitsthesentencesbeforeandafterit.UsetheStrategiestocompletethegapsinthetext(1-5)withthesesentences(a-g).Therearetwoextrasentencesyoudonotneed.a)Butevidenceshowsthat73,000yearsagotherewasamuc

5、hgreatereruption.b)EvenEuropehassufferedandlargeareashavebeenunderwater.c)Thatisprobablynotthemostimportantfactoreither.d)Third,theotherbitsoflandyoumighthavebeenabletofarmarenowuseless.e)Ontopofthataddglobalwarming.Theanswers:1.b2.f3.g4.e5.af)Forexample,theYellowRive

6、r,oncefamousforflooding,failedtoreachtheseaatallfor226daysin1997.g)Oneanswerisoverpopulation.Readthetextagainandanswerthesequestions.1.Whatistheattitudeofthejournalisttowardsthefuture?Pessimistic/negative2.Whoaremostlikelytobethevictimsofnaturaldisasters?Poorpeople.3.

7、Whyaretherenowmorehurricanes,floodsanddroughts?Overpopulationandmismanagementoftheworld’sresources.4.Whyarevolcanoesandearthquakesmoredangerousnow?Becausearoundhalftheworld’spopulationlivesincities,morethan500millionpeoplenowlivewithintherangeofavolcaniceruptionandane

8、vengreaternumberofpeopleliveatriskfromearthquakes.5.Whatcouldbethebiggestthreattotheplanetinthefuture?Avolcaniceruption.6.Wh