高中英语 module 4 sandstorms in asia section ⅰ introduction & reading pre-reading教学案 外研版必修3

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1、Module4SandstormsinAsiaSectionⅠIntroduction&ReadingPre-readingInApril2012,aduststormthatoriginatedinChinaandMongoliatookasixdayjourneyacrossmorethantenthousandkilometersofseaandopenlandtoArizonaintheUnitedStates.Thecloudwassodensethatitseemedasifthesunweresettingearly.Atl

2、eastonepersonthoughtavolcanohaderupted.Althoughtravelingduststormsarenothingnew,thedustnowoftencontainschemicalormetallicsubstancesthatcontributetorespiratoryillnesses(呼吸道疾病)anddamagetheenvironment.Atpresent,agroupofresearchersinAsiaisstudyingaerosolparticlesandtheireffectson

3、theenvironment—andtheyhaveplentyofdusttoworkwith.Duststormsareoneoftherepercussions(后果)ofhumansmessingaroundwithMotherNature.Althoughtheyareanaturalphenomenon,duststormshavebeenoccurringmoreoften,atshorterintervals,andwithgreaterforceinrecentyears,andhumanactivityisthecause.I

4、tisafactthatexcessiveherdingofanimalsandexploitationofgrasslandsareresponsibleforthemajorityofduststorms.Thismeansthatduststormsarelargelyaresultofhumanactions;inotherwords,theyarecontrollable.非常感谢上级领导对我的信任，这次安排我向股份公司述职，既是对我履行职责的监督，也是对我个人的关心和爱护，更是对**百联东方商厦有限公司工作的高度重视和支持。Secti

5、on_ⅠIntroduction&Reading—PrereadingSandstorms①inAsiaSandstormshavebeenamajor②disasterformanyAsiancountriesforcenturies.ScientistshavetriedmanywaystosolvethisproblemandinChina,amass③campaign④hasbeenstartedtohelpsolveit.Sandstormsarestrong,drywindsthatcarrysand⑤.Theyareoftensot

6、hickthatyoucannotseethesun⑥，andthewindissometimesstrongenoughtomovesanddunes⑦.Thefourmainplacesintheworldwheretherearesandstorms⑧areCentralAsia,NorthAmerica,CentralAfricaandAustralia.RenJianbo,fromInnerMongoliadescribedaterriblesandstormheexperienced⑨asachildinthedesert.“Toha

7、vebeencaughtinasandstorm⑩wasaterribleexperience，”hesaid.“Therewasnothingtobedone⑪.ItwasthemostfrighteningandthemostdangeroussituationI’veeverbeenin⑫.Youjusthadtohopeyou’dsurvive.IthoughtIwasgoingtodisappearunderthesand.”①sandstorm/'sændˌstɔːm/n.沙尘暴②major/'meIdʒə/adj.主要的；多数的③m

8、ass/mæs/adj.大量的；大规模的④campaign/kæm'peIn/n.战役；活动⑤thatcarrysand是定语从句，修饰