高三英语课外阅读 Light pollution公开课课件.ppt

Guidanceonreadingexpositorywriting,说明文阅读微技巧指导,LightPollution,1.Whattypeofarticleisit?A.Narrative(记叙文)B.Expositorywriting(说明文)C.Practicalwriting(应用文)D.Argumentation(议论文),Prediction,2.Whatdoyouthinkisthemostchallengingwhenreadingexpositorywriting?,Newwords,especiallyscientifictermsaredifficulttounderstand.Itischallengingforusstudentstounderstandthemainidea.,LearningAims,Bytheendoftheclass,wellbeableto1.getsomeideaofhowtoreadexpositorywriting;2.learnsomemini-skillsandputthemintopractice.,Readingforstructure,opic,ffects,Tipsfortheformatofexpositorywriting:introductionofthesubject;examplesconclusion.,1-2,3-6,Whattopicdoesthewriterintroduceinthearticle?,Whatmightbethebesttitleforthepassage?TheMagicLightB.TheOrangeHazeC.TheDisappearingNightD.TheRhythmsofNature,Mini-skillatfindingthetopicinexpositorywriting:首段为主；二段为辅。,Fastreading,Whathavewehumanbeingsdonetothenight?Whatislightpollution?,Readingfordetails,Part1(Para.1-2),1.Whathavewehumanbeingsdonetothenight?,Readingfordetails,Part1(Para.1-2),Weveengineeredittoreceiveusbyfillingitwithlight.,=Wevetransformedthenightbyfillingitwithlight.,Whatdoes“it”mostprobablyreferto?ThenightB.ThemoonC.TheskyD.Theplanet,2.Whatislightpollution?,Readingfordetails,Part1(Para.1-2),Lightpollutionislargelytheresultofbadlightingdesign,whichallowsartificiallighttoshineoutwardandupwardintothesky.,Readingfordetails,Part2(Para.3-6),beemptiedofstars,collidewith,throwoutofjoint,losesightof,Readingfordetails,Part2(Para.3-6),Inmostcitiestheskylooksasthoughithasbeenemptiedofstars,leavingbehindavacanthazethatmirrorsourfearofthedark.,=Inmostcitiesstarsintheskyisinvisibleagainstartificiallight,andasaresult,theskyleavesbehindavacanthazemirroring/reflectingourfearofthedark.,Readingfordetails,Part2(Para.3-6),Migratingatnight,birdstendtocollidewithbrightlylittallbuildings.,=Whenbirdsmovefromoneplacetoanotheratnight,theytendtostrikeviolentlyagainstbrightlylittallbuildings.,Readingfordetails,Part2(Para.3-6),Frogslivingnearbrightlylithighwayssuffernocturnallightlevelsthatareasmuchasamilliontimesbrighterthannormal,throwingnearlyeveryaspectoftheirbehavioroutofjoint,includingtheirnighttimebreedingchoruses.,=,whichdisturbtheirbiologicalsystem,includingtheirnighttimebreedingchoruses.,Readingfordetails,Part2(Para.3-6),Wehavecutourselvesofffromourevolutionaryandculturalheritage.Lightpollutioncausesustolosesightofourtrueplaceintheuniverse,toforgetthatscaleofourbeing.,Whatdoesthewriterimplybymentioningit?Lightpollutiondoesharmtotheeyesightofanimals.Lightpollutionhasdestroyedsomeoftheworldheritages.Humanbeingscannotgototheouterspace.Humanbeingshouldreflectontheirpositionintheuniverse.,1.Whatdoyouthinktheword“diurnal”meansinPara.1?2.Whatdoesthephrase“lightrhythms”refertoinPara.2?3.Whatdoesthephrase“theoriginalgloryofanunlitnight”inPara.3standfor?4.WhatisourevolutionaryandculturalheritageinPara.6?5.Whatdoesthephrase“theMilkyway”meaninPara.6?,Readingforchallenges,1.Whatdoyouthinktheword“diurnal”meansinPara.1?,Readingforchallenges,Itistheoppositeof“nocturnal”anddiurnalcreaturesareusedtolivinginthesuns(day)light.,Mini-skillsatguessinganewword:运用同义或反义关系；,Thekey:instead;witheyesadaptedtolivinginthesunslight,2.Whatdoesthephrase“lightrhythms”refertoinPara.2?,Readingforchallenges,Itreferstotherhythmsofdayandnight.(thechangefromdaytonightandbackagain),Thekey:therhythmsofdayandnight(Para.6),Mini-skillsatguessinganewword:运用上下文信息；,3.Whatdoesthephrase“theoriginalgloryofanunlitnight”inPara.3standfor?4.WhatisourevolutionaryandculturalheritageinPara.6?,Readingforchallenges,ItreferstodarkenoughfortheplanetVenustothrowshadowonEarth.,Itreferstothelightofthestarsandtherhythmofdayandnight.,Mini-skillsatguessinganewword:运用同位关系；（冒号或破折号）,5.Whatdoesthephrase“theMilkyway”meaninPara.6?,Readingforchallenges,Itmeansourgalaxy.,Mini-skillsatguessinganewword:运用构词法。,Conclusion,Mini-skillatfindingthetopicinexpositorywriting:首段为主；二段为辅。,Mini-skillsat