2017届高考英语词汇复习教学案4

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1、理科（普通）英语练习013使用时间第6周班级姓名Unit22EnvironmentalProtectionLesson3NaturalDisastersPeriod1　ReadingComprehensionStep1:LearningAims（学习目标）:1.Tolearnaboutsomenaturaldisasters.2.Topracticestudents'readingskills—fastreadingandcarefulreading.ImportantandDifficultPoints（重难点）:Toimprovestudents’reading

2、skills.Step2:Lead-in（情景导入）Let’sappreciatesomepicturestogether.Step3:Previewdetection(检查预习)Usethestrategiestocompletethegapsinthetext(1-5)withthesesentences(a-g).Therearetwoextrasentencesyoudonotneed.(a)Butevidenceshowsthat73.000yearsagotherewasamuchgreatereruption.(b)EvenEuropehassuffe

3、redandlargeareashavebeenunderwaer.(c)Thatisprobablynotthemostimportantfactoreither.(d)Third,theotherbitsoflandyoumighthavebeenabletofarmarenowuseless.(e)Ontopofthat,addglobalwarming.(f)Forexample,theyellowriver,oncefamousforflooding,failedtoreachtheseaatallfor226daysin1997(g)Oneansweri

4、soverpopulation.Step4:Self-study(学生自学)Readthetextagainandanswerthesequestions.1.Whatistheattitudeofthejournalisttowardsthefuture?2.Whoaremostlikelytobethevictimsofnaturaldisasters?3.Whyaretherenowmorehurricanes,floodsanddroughts?4.Whyarevolcanoesandearthquakesmoredangerousnow?5.Whatcou

5、ldbethebiggestthreattotheplanetinthefuture?6.Whateffectsmightthisthreathave?Step5:Group-work(合作探究)Inthelast___years,therearemoreandmoredisasterssuchas_____,________,thunderstorms,earthquakes,________,volcanic_________and_____firesallovertheworld.Whyaresomanydisasters?Oneofthereasonsiso

6、ver-__________.__addition,______changeandthespectreofglobal________causedbythemismanagementoftheworld’sresourcescanleadtothedisastersormakethemworse.Atpresent,volcanoesandearthquakesaremore_________withthefast______ofpeople.Earthquakestakethelivesof1.6millionPeopleinthelasthundredyears

7、.Whatisworse,thedisasterprofessionalspredictthatthethingswillget_____.Step6:Test(当堂检测)Importantphrases1.onrecord2.resultin3.wipeout4.turnon5.attherateof6.quantitiesof7.forinstance8.withintherangeof9.atrisk10.insomedegree11.ontopof…Step7:Summary(课堂小结)1.Askoneormorestudentstosummarizew