高中英语 Unit 22 Period Four Lesson 3 Natural Disasters课件 北师大版选修8.ppt

unit22environmentalprotectionperiodfourlesson3naturaldisasters课件（北师大版选修8，广东专用）,.单词识记1_ntheamountofrainthatfallsinacertainplace2_adj.huge；verypleasant3_adj.changingoften4_ntheactofsupplyingwatertoland5_vtogiveweaponstosb6_adj.notfarfromthecoast,7_adj.notsmooth；unpleasant8_ntheactofseparating9_nmethodsbywhichathingmaybedone10_vtobuild；toputtogether11_vtoslideorloseonesbalanceoffooting12_vtorunaway13_nthepossibility,答案1.rainfall2.grand3.changeable4.irrigation5.arm6.offshore7.rough8.separation9.means10.construct11.slip12.flee13.potential,.短语天地1_大规模的2_进行武装冲突3_导致4_消除，摧毁5_从恢复6getover_7turnon_8earnonesliving_,9warnsbinadvance_10getalotworse_11inadvance_12tosomedegree_答案1.onagrandscale2.inarmedconflict3.resultin4wipeout5.recoverfrom6.克服，恢复7.攻击8谋生9.提前预警10.变得糟糕11.提前12.在某种程度上,.句型搜索1ifallthebeastsweregone，menwoulddiefromagreatlonelinessofspirit，forwhateverhappenstothebeastsalsohappenstotheman.信息提取whatever在此引导主语从句。例句仿写小孩要什么给什么是不对的。itiswrongtogive_.,2asamatteroffact，averageurbannoisepollutionlevelshavedecreasedby3decibelssince1989.信息提取since表示“自从以来”。例句仿写从那时起到现在他就一直住在这里。sincethenhe_.答案1.achildwhateverhewants2haslivedhere,.预读理解1fastreadingscanthetextandchoosethebestansweraccordingtoit.(1)whichofthefollowingexamplesdoesntbelongtonaturaldisasters?ain2008，aterribleearthquakehitwenchuan.binthespringof2009，alargeareaoffarmlandinchinasuffereddrought.calotofpeopleinsomeafricancountriesareinfectedwithaids.dpompeiiwasburiedundergroundfornearly2,000yearsafteravolcaniceruption.,(2)theattitudeofthejournalisttowardsthefutureis_.aoptimisticbpessimisticcindifferencedambiguous(3)accordingtothepassagewhoshouldbetoblamefortheincreasingnumbersofnaturaldisasters?anatureitself.bhumanbeings.coveradvertising.dthedevelopmentofmodernscience.,(4)whichofthefollowingstatementsisrightaccordingtothepassage?atherecanbeanevenworsevolcaniceruptioninthefuture.bnaturaldisastersmayoccuratregulartimes，whichhumanbeingscanpredict.cwiththedevelopmentofmodernscienceandtechnologies，fewerandfewerpeoplesufferfromnaturaldisasters.dglobalwarminghasnoconnectionwithnaturaldisasters.,(5)whichofthefollowingissimilarto“turnon”inmeaning?aswitchon.bdependon.ctakeon.dstrike.答案(1)c(2)b(3)b(4)a(5)d,2carefulreadingreadthetextandfillintheblanks.,答案(1)disasters(2)threatened(3)catastrophe(4)tsunami(5)rapidly(6)produced(7)destruction(8)dangerous(9)believed(10)alot,1.fleevt.泄露；取出,【单项填空】wemakehimeatsomuchthathewont_itforaovernight.agetthroughbgetovercgetawaydgetbeyondifanythinghappenedthathurthismarriageheknewhewouldnever_it.agetbetweenbgetoutcgetawaydgetover答案bd,1(课文重现)ifallthebeastsweregone，menwoulddiefromagreatlonelinessofspirit，forwhateverhappenstothebeastsalsohappenstotheman.如果所有的动物都灭绝了，人类就会死于精神上的寂寞，因为发生在动物身上的事同样也会发生在人类身上。,【句式分析】本句为由两个复合句组成的并列句，由for连接。第一个分句包含if引导的虚拟条件句，在第二个分句中whatever引导主语从句。ifiwereabird，iwouldflytothesky.如果我是一只小鸟，我就会飞向天空。ifhehadtakenmyadvice，hewouldnthavelosthisjob.如果他当初听我的建议，他就不会失去工作了。ifishouldhavealotofmoney，iwouldbuyabighouse.如果我将来有很多钱，我会买座大房子。whateverhesaysisright.无论他说什么都是正确的。,【单项填空】theweatherhasbeenveryhotanddry.yes.ifithadrainedevenadrop，thingswouldbemuchbetternow！andmyvegetables_.awouldntdiebdidntdiechadntdieddwouldnthavedied解析句意：“天气又干又热。”“是啊。哪怕下一滴雨，事情比现在都要好得多！我的蔬菜也就不会死了。”由句意及题干中的ifithadrainedevenadrop可知事实上第二个人的菜已经死了，题中是对过去的虚拟，所以主句用wouldhave过去分词，因此选d。答案d,_somepeopleregardasadrawbackisseenasaplusbymanyothers.awhetherbwhatcthatdhow解析句意：“一些人认为是缺点的东西，会被其他许多人看做长处。”通过分析从句中的结构，可判断出填空处需要连接代词作宾语，可先排除a、d两项，又因为that在名词性从句中不作任何成分，只起连接作用，所以又可排除c项。故用what，表示“什么东西”。答案b,【感悟高考】sorry,iamtoobusynow.ifi_time,iwouldcertainlygoforanoutingwithyou.(2012湖南)ahavehadbhadhadchavedhad解析考查虚拟语气，从句中用一般过去时表示对现在的假设。答案d,ifmycar_morereliable,iwouldhavedriventolhasainsteadofflyinglastsummer.(2012陕西)awasbhadbeencshouldbedwouldbe解析考查虚拟语气。根据主语的谓语动词可知题干是表示与过去事实相反的虚拟语气，从句谓语动词用haddone，选b。答案b,2(课文重现)asamatteroffact，averageurbannoisepollutionlevelshavedecreasedby3decibelssince1989.事实上，自从1989年以来，人均城市噪音污染已经降低了3分贝。【句式分析】句中since表示“自从以来”，引导状语从句时后接终止性动词，主句常用现在完成时态。hehasstudiedveryhardsincehecametoourschool.从来我们学校后，他学习非常努力。,【拓展】since可以表示原因，语气比because弱，意为“既然”，引导原因状语从句。since引导的从句既可放在主句之前，也可放在主句之后。sinceyoucantanswerthequestion，perhapswedbetterasksomeoneelse.既然你不能回答这个问题，我们只好问其他人了。,【单项填空】jamesknewthathevaluedhisbicyclefarmore_hehadboughtitwithhisownmoney.asincebifcthandthough答案a,【感悟高考】hisfirstnovel_goodreviewssinceitcameoutlastmonth.(2011陕西)areceivedbisreceivingcwillreceivedhasreceived解析句意：他的第一本小说自从上个月出版以来受到了良好的评价。根据sinceitcameoutlastmonth可知本句应用现在完成时，故选d。答案d,3thelastfewyearshaveseenenvironmentaldisastersonagrandscale,andexpertsarepredictingfarworsetocome.近几年来，自然灾害大规模地发生，专家们预测情况会越来越糟。句中thelastfewyears作主语，see是谓语，是一种拟人化的句式，用来增加句子的表现力。在英语中，表示时间和地点的一些名词有时候可以作主语，此时谓语动词多为“see,witness,find”等。,thefollowingyearsawthedeathofherfather.第二年她爸爸去世了。thecityhaswitnessedmanychangesinthelastfiveyears.这座城市见证了最近五年的许多变化。thenextfewyearssawaseriesofbadharvests.接下来的几年里粮食连年欠收。,【单项填空】theearthquakeinyushu，qinghai_thefactthatallpeoplesshouldteamup.aseesbhasse