2022版高考英语一轮复习必修3Unit5Canada_“TheTrueNorth”课件新人教版.ppt

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1、Unit5Canada—“TheTrueNorth”Step1诵读经典·渗透文化意识Ⅰ.细品味经典文章(2020·全国Ⅰ卷阅读理解D)Theconnectionbetweenpeopleandplantshaslongbeenthesubjectofscientificresearch.Recentstudieshavefoundpositiveeffects.AstudyconductedinYoungstown,Ohio,forexample,discoveredthatgreenerareasofthecityexperiencedlesscrime.Inanother,emplo

2、yeeswereshowntobe15%moreproductivewhentheirworkplacesweredecoratedwithhouseplants.TheengineersattheMassachusettsInstituteofTechnology(MIT)havetakenitastepfurther—changingtheactualcompositionofplantsinordertogetthemtoperformdiverse,evenunusualfunctions.Theseincludeplantsthathavesensorsprintedontot

3、heirleavestoshowwhenthey’reshortofwaterandaplantthatcandetectharmfulchemicalsingroundwater.“We’rethinkingabouthowwecanengineerplantstoreplacefunctionsofthethingsthatweuseeveryday,”explainedMichaelStrano,aprofessorofchemicalengineeringatMIT.Oneofhislatestprojectshasbeentomakeplantsglow(发光)inexperi

4、mentsusingsomecommonvegetables.Strano’steamfoundthattheycouldcreateafaintlightforthree-and-a-halfhours.Thelight,aboutone-thousandthoftheamountneededtoreadby,isjustastart.Thetechnology,Stranosaid,couldonedaybeusedtolighttheroomsoreventoturntreesintoself-poweredstreetlamps.Inthefuture,theteamhopest

5、odevelopaversionofthetechnologythatcanbesprayedontoplantleavesinaone-offtreatmentthatwouldlasttheplant’slifetime.Theengineersarealsotryingtodevelopanonandoff“switch”wheretheglowwouldfadewhenexposedtodaylight.Lightingaccountsforabout7%ofthetotalelectricityconsumedintheUS.Sincelightingisoftenfarrem

6、ovedfromthepowersource(电源)—suchasthedistancefromapowerplanttostreetlampsonaremotehighway—alotofenergyislostduringtransmission(传输).Glowingplantscouldreducethisdistanceandthereforehelpsaveenergy.Ⅱ.按要求完成任务1.写出文章中表“人类身份”的单词和短语。___________________________________________2.Inthefuture,theteamhopestodev

7、elopaversionofthetechnologythatcanbesprayedontoplantleavesinaone-offtreatmentthatwouldlasttheplant’slifetime.翻译:_______________________________________________________________________________subject(研究主体),employee;engi