文/董桂荣
一、教学课型：阅读课。
二、教材分析：
TheViolenceofNature是外研版Book3Module3的一篇阅读文章，文章共分3部分，分别介绍了两种自然灾害——龙卷风和飓风的形成和危害及一次异常事件。
三、教学目标：
1.让学生识记并能正确运用以下词汇：ash,bury,current,disaster,erupt,flow,latitude,lava,occur,tornado,tropical,hurricane,pickup,takeoff,onaverage,endup。
2.学习过去完成时的被动语态的用法。
3.理解含有所学生词、含有过去完成时的被动语态和间接引语的句子和段落，读懂其意义并获取信息；理解模块提供的和来自其他渠道的对不同自然灾害的介绍并获取信息。
4.引导学生整体把握文章主旨，提高阅读效率；鼓励学生开展小组合作，运用副词表达好消息和坏消息。
5.了解自然灾害的危害，结合发生在我国的两次大地震及甘肃省舟曲县的泥石流，激发学生学好科学文化知识的决心和信心，以实际行动作好与自然灾害作斗争的准备，为人类造福。
四、教学重点和难点：
1.通过阅读理解词汇，通过词汇学习掌握文章主旨，加深对文章的理解。
2.理解文章中含有定语从句的句子及含有过去完成时的被动语态的句子。
3.联系实际，了解不同的自然灾害带来的危害，激发学生利用所学知识与自然灾害作斗争的决心。
五、教学过程：
StepⅠWarmingup
Showavideo“StormChasers”andsomepicturesabouttornado,hurricaneandothernaturaldisasterstoleadinthetopicofthispassage.
[设计说明]
使用多媒体视频及图片生动、形象地展示与文章相关资料，更直观地展现自然灾害的威力，吸引学生注意，激发他们的学习兴趣和决心。
StepⅡSkimming
Letthestudentsreadthewholetextquicklyandsaythemainideaofeachpart.
●Part1:Atornadoisarotatingcolumnofairandintroduceitspower.
●Part2:Hurricanesarestrongtropicalstormsandintroduceitspowerandtheworstdisasterbyit.
●Part3:CharlesCoghlan?sstoryintheworsthurricanedisaster.
[设计说明]
通过快速阅读让学生初步了解文章大意，归纳每一部分的主旨大意，提高阅读技能。
StepⅢScanning
1.Letthestudentsreadthepassageagainandthenworkinpairsorgroupstofillinthechartaccordingtothetext.
Keys:①Arotatingcolumnofairfromathunderstormtotheground②IntheUS③Morethan400kms/h④Pickupcars,trainsandevenhousesandputthemdowninthenextstreet—oreveninthenexttown;takethefuroffthebackofacatandthefeathersoffachicken;destroythehouses⑤In1925,intheUS;killedmorethan700people;injured2,700people⑥Strongtropicalstorms⑦InthesouthernAtlanticOcean,theCaribbeanSeaandtheGulfofMexico⑧120kms/hormore⑨Causehugewaves,heavyrainandfloods⑩Septemberthe8th,1900;killed6,000people;destroyed3,600buildings
[设计说明]
通过练习使学生有目的地进行阅读，了解文章的细节信息，提高学生获取信息和处理信息的能力。
2.Doactivity2andactivity3onPage22bythemselves.
Activity2:Readthepassagesonpage23andanswerthesequestions.
(1)Howstrongaretornadowinds?
(2)Whatcanhappentofurniturewhenahouseisdestroyedbyatornado?
(3)HowmanytornadoesarethereintheUSeveryyear?
(4)Howmanypeoplediedintheworsttornadoofalltime?
(5)Whathappensatseaduringahurricane?
(6)Whenwastheworsthurricaneofalltime?
(7)WastheactorCharlesCoghlankilledinit?
(8)Whathappenedtohimafterthehurricane?
Keys:(1)Morethan400km/h.(2)Itstayswhereitwas.(3)About800.(4)Morethan700.(5)Ithashugewaves.(6)Onthe8thSeptember,1900.(7)No,hewasn?t.(8)HiscoffinwasdroppedintheseabyahurricaneandcarriedtoCanadabytheGulfStream.
Activity3:Findthewordsandexpressionsinthepassagesandmatchthemwiththedefinitions.
(1)youcanseethisonananimal_____
(2)describingthehottestpartsoftheearth,northandsouthoftheequator_____
(3)aterribleevent_____
(4)youcanseetheseonabird_____
(5)toplaceinthegroundortomb_____
(6)tohappen_____
Keys:(1)fur(2)tropical(3)disaster(4)feathers(5)bury(6)occur
[设计说明]
让学生通过练习进一步获取文章信息，提高阅读理解能力及用英语思维的能力。
StepⅣCarefulreading
Letthestudentsreadthetextcarefullyanddothefollowingexercises.
Decideifthesestatementsaretrue(T)orfalse(F).
(1)Alltornadoeshavewindsofmorethan400kilometresperhour.(F)
(2)TherearemoretornadoesoccurringintheUSthaninotherpartsoftheworld.(T)
(3)Tornadoescan?tdestroyfurniturebecausetheyarenotviolentenough.(F)
(4)IntheUS,thereareusuallyabout80peoplekilledintornadoeseveryyear.(F)
(5)Theworsttornadoinhistorykilledatleast700people.(T)
(6)EveryyeartherearesixAtlantichurricanes.(F)
(7)BoththeworsttornadoandtheworsthurricaneoccurredintheUS.(T)
(8)Theworsthurricaneofalltimekilledaboutone?sixthofthepopulationintheUS.(F)
(9)CharlesCoghlandidn?tbecomefamousuntilhemovedtoNewYork.(T)
(10)Coghlan?scoffinwasdestroyedbythe1900Galvestonhurricane.(F)
(11)ItwasonlybecauseofthehurricanethatCoghlan?sbodycouldtravelbacktoCanada.(F)
[设计说明]
通过细读了解文章细节，指导学生掌握一定的阅读技巧，提高阅读效率。
StepⅤImportantlanguagepoints
1.AlmostallofthemoccurintheUS,intheareafromTexasinthesoutheasttoSouthDakotainthenorth.
occur:
①发生
e.g.Hetoldmehowtheaccidentoccurred.
②Sthoccurtosb...想起，浮现
e.g.AnexcellentideaoccurredtomewhenIwokeupthismorning.
ItoccurredtomethatIwouldtraveltoEurope.
2.Onaverage,thereare800tornadoesintheUSeachyear,causingabout80deathsand1,500injuries.
causingabout80deathsand1,500injuries作结果状语。现在分词短语作结果状语表示两个动作之间具有必然的因果关系，通常放在句末。
e.g.Footballisplayedinmorethan80countries,makingitthemostpopulargameintheworld.
3.ThecemeterywhereCoghlanwasburiedwasdestroyedbythehurricaneandCoghlan?scoffinendedupinthesea.
endupwith以……告终
e.g.Withoutyourhelp,theexperimentwillendupwithfailure.
[设计说明]
让学生掌握重点单词、短语和句型的用法，分析长难句，提高阅读水平和写作技能。
StepⅥDiscussion
TheteachershowsthetopicandsomeinformationabouttheWenchuanearthquake.First,letthestudentsdiscussingroups.Second,eachgroupwilldisplayapassageaccordingtothegivenmaterials.Then,theteacherandstudentscorrectthemistakesandchoosethebestonetogether.Finally,showthepossibleversionforthestudentstoreferto.
Discussionandwriting:根据下面的提示写一篇120~150词的短文，可适当增添细节。
2008年5月12日，一次特大地震袭击了汶川，数以万计的人员伤亡，更有许多人无家可归。震后，交通阻断，水电供应也中断了，灾区情况严峻。消息传出后，全国人民纷纷伸出援助之手，众多国际组织和外国政府实施紧急救援，帮助灾区人们渡过难关。
Someexpressionstohelpyou.
●beinruins变成废墟
●inaflash顷刻间
●asaresult结果
●becomehomeless无家可归
●what?sworse更糟糕的是
●loseone?slife丧生
●takeaction采取行动
●donatemoney捐钱
●raise/collectmoney筹集资金
●callonsb.todo号召某人做
●sharepainsandsorrowswith...与……分担痛苦与伤悲
●inashorttime在短时间内
●makecontributionsto为……作出贡献
[设计说明]
以小组形式展开讨论，激发学生的积极性，提高他们的合作意识；利用所学知识组织文章，使之掌握写作技巧，提高写作能力。
StepⅦHomework
1.Retellthetextusingabout100words.
2.Combinethenaturaldisasterswhichhappenedinourcountryinrecentyears,andwriteanessaybasedonthemainidea“Facedwithanaturaldisaster,whatshouldyoudotofightwithitandbenefitthehumanbeings?”
[设计说明]
通过复述课文，培养学生利用所学知识进行英语口头表达的能力；自己组织一篇开放式作文，鼓励学生巩固所学知识，并通过多种渠道收集信息，提高学习英语的积极性和主动性。
作者单位：山东省齐河县第一中学