Unit4FunwithscienceExtendedReading课件高中英语牛津译林版（2020）选修第一册

B8U4ExtendedReadingHowtolifttheseicecubeswithapieceofstring?Step1:LeadinStep1:LeadinDoyouknowitsprinciple?Step1:LeadinBecauseofthechemicalstructureofsalt,addingsaltmakeswater’sfreezingpointlower,sothesurfaceoftheicecubesmeltsfaster.However,sinceonlyasmallamountofsaltisadded,therestoftheiceisstillfrozen,andthemeltedicesoonrefreezes.Asaresult,thestringontheicecubes’surfacebecomesattachedtothem.Doesithaveanyapplicationinourdailylife?Step1:LeadintomelticeontheroadStep2:Activity1-UnderstandingthewholepassageintroductionoriginfourstagesapplicationatpresentinthefutureimportancenatureStep2:Activity1-Understandingthewholepassage1.Bionicsisborn________．A.becausehumansareborncuriousB.becausenatureprovidesuswithendlessresourcesC.becauseofurgentdemandforbetterlifeD.becauseofthe

inspirationfromnatureforbettermentoflife2.The

secondparagraphismainlyaboutthe____ofabionicproduct.A.exploration

B.design C.application D.futureStep2:Activity1-Understandingthewholepassage3.Fromthepassagewecaninfer________．A.thesunflowerreflectsmaximumofthesunlightB.alivingorganismhasthepotentialtooffersolutionstohuman problemsC.thefuturewillwitnessexplodinginspirationfromnature benefitingushumansD.technologicalinnovationsinbionicsposeapotentialdangerto humanbeings4.What'sthemainwritingtechniqueofthistext?A.Usingmetaphor.

B.Makingcomparisons.C.Givingexamples.

D.Analysingcauses.ReadParas1-2andanswer:1.Howdoyouunderstandthesentence“Humansarecuriousbynature,andaboutnature”?2.Whatisthedefinitionofbionics?Bionicsisascienceoftakinginspirationfromnaturetoimproveourlife.Humans’curiosityistheirnaturefromtheirbirth,asaresultofwhichtheyarecuriousabouttheworldofnature.Step3:Activity2-SAQsReadPara1andanswer:ReadPara2andputstepsbelowintocorrectorder.Whatdoscientistsoftendotoeffectivelycombinenatureandinnovation?________A.Todofurtherexplorationtodeterminehowthenaturalsolutionwillfitinwithhumanneeds.________B.Toobservealivingorganismwiththepotentialforofferingsolutionstoaparticularhumanproblem.________C.Todecidewhetherthesolutioncanberecreatedtodevelopanewproductorperhapsimproveanexistingone.________D.Toidentifynature’sownsolutionsduringobservationanddataanalysis.Step4:Activity3-Ranking1234observeidentifyexplorerecreateStep5:Activity4-FillingblanksPresentapplicationsofbionics--inspirationfromplants(Para3)SunflowerSolarPowerPlantsOneideagrewfromobserving(1)_________________________________.Theseedsgrowatthe(2)_______________________,ensuringallofthemreceivesunlight.Tocapturemaximumsunlight,thesunflower’sfacealso(3)____________________.Solarmirrorsarearrangedto(4)_____thespiralseedpatternand(5)__________atthesame“goldenangle”.Themirrorsarealso(6)_____________tofollowthesun.Thesolarpowerplantis(7)_____________,requiringlesslandtobuildonandlessenergytooperate.thesunflower’sspiralseedpatternfollowsthesun’spath“goldenangle”of137.5°copypositionedprogrammedeco-friendlyStep6:Activity5-GrammarClozePresentapplicationsofbionics--inspirationfromanimals(Para4)ButterfliesMicrostructures&PaintsEquallyexciting(1)___(be)thediversepossibilitiesprovidedbytheanimalkingdom.Forexample,researchintothebrilliantbluewingsof(2)___speciesofbutterflyhasledto(3)___________(innovate)technologiessincescientists(4)_________(cover)thesecretbehindtheirbrightcolor.Thewingsofthesebutterfliesarecoveredwithtinydiamond-shapedstructuresthatinteractwithlight,(5)_______(cause)somecolorwavelengthstobecancelledoutwhileintensifyingandreflectingothers.Inspired,scientistshaverecreatedthesemicrostructuresthatcanbeinsetintolegaldocumentsandbanknotesandproduceauniquevisualeffectalmostimpossibletocopy.Abetterunderstandingofthebutterfly’s(6)________(vivid)coloredwingshasalsoledscientists(7)____(develop)paintswithoutusingharmfulsubstances,(8)_______notonlylastlongerbutarealsomoreeco-friendly.areinnovativeacausingvividlytodevelopwhichuncoveredStep7:Activity6-MultipleChoiceFutureapplicationsofbionics(Para5)

Whatcanbegreatlyimprovedifsomeonewearsroboticsuitsinspiredbythestrongexoskeletonofinsects?(Morethanoneansweriscorrect.)A.MobilityB.StrengthC.Load-bearingcapabilitiesStep8:TextrewritingNaturehasbeen(1)________ustoimitateitanddevelopmaterialsandtechnologiesforthe(2)________ofourlife,whichhaswitnessedconstantbreakthroughsinthefieldofbionics.Afterdrawinginspirationfromnature,scientistshavetosparenoefforttocombinenatureand(3)________effectively.Manynewideaswill(4)________uponcethegapbetweennatureandinnovationis(5)________.Solarpowerplantsaredesignedaccordingto(6)________inaneco­friendlyway.(7)________，theinspirationfromanimalkingdomhasenabledscientiststorecreatemicrostructureswhichcanbeinsetintolegaldocumentsand(8)________，andtodevelopeco­friendlypaintswithalonglife.Definitely,(9)________researchintothewonderofnaturewillwitnessmoreexplodingtechnologicalinnovationsinmanyfields,whichwillhavealastingeffectonourlife.(10)________rapidadvancementsbeingmadeinbionics,itisbeyonddoubtthatnothingisimpossible.inspiringbettermentinnovationspringbridgedsunflowersSimilarlybanknotescontinuousWithStep9:Sentencecompletion1.LuBan,acarpenterinancientChina,______________(从事)bionics whenheproducedasawbycopyingtheshapeofaleaf’ssharpteeth.

2.Scientistsoften_______________________________________________(需

要不遗余力地将自然和创新有效结合起来)

3.______________________________________(为了最大限度地获得光照), thesunflower’s