【课件】Unit+1Using+Language+课件高中英语人教版（2019）选择性必修第二册.pptx

选择性必修二Unit1ScienceandScientistsUsingLanguage(1)TalkaboutscientificexperiencesWhatcanyouseeinthevideo?FreetalkCanyoutellusmoreamazingscientificphenomena?non-Newtonianfluid非牛顿流体distortingmirrors哈哈镜lightning闪电Pre-listeningWherearethey?Whatishe/shedoing?Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.BapianokeyboardplaywithfeetAA.Ithinkthedishinthisexhibitionisrelatedtosound.Maybetheboyiswhisperingintothesmallercircleandthedishcanmakehisvoicelouder.B.Thislookslikeapianoyouplaywithyourfeet.Maybeitshowshowsoundworks.Pre-listeningagiantdishwhisperCDahallofmirrorsreflectabluescreenbrightlightsC.Imnotsurewhatthisoneshows,butitmustbeaboutlightoreyesight.D.Itisahallofmirrors.Maybeithastodowiththeprinciplesofreflection.Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.Pre-listeningEawhitelightcastshadowsinthecolouroftherainbown.彩虹n.阴影v.投射E.Thisisprobablyanexperimentinvolvingthecompositionoflight.Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.Pre-listeningActivity2.Thephotosarerelatedtotheconversationyouwillhear.Usingthephotos,trytopredicttheanswerstothefollowingquestions.(1)Wherearethepeopleintheconversationgoingtogo?(2)Whatkindofplaceisit,andwhatdoesitfocuson?Theyaregoingtoasciencemuseum.Itisasciencemuseumthatfocusesonlettingvisitorsexperiencesciencethroughinteractive(互动的)learningexhibitions.Pre-listeningWhile-listening1.ListentotheconversationandseeifyouranswersforActivity2arecorrect.Thenwritedowntheletters(A-E)forthephotosintheorderthatyouhearthemdescribed.(P.6Ex.3)TIP:Trytonotedownthekeyphrases.1._2._3._4._5._lightgamesahallofmirrorsabluescreentinybrightlightscastshadowscoloursofrainbowanareaforsoundapianokeyboardagiantdishspeakinawhisperDCEBAWhile-listening2.Listenagainandcompletethedescriptionsofthephotos.(P.6Ex.4)PhotoA:Agiantdish;whenyouspeakintoit,it_thesoundbackand_.Youcanuseittospeakina_tosomeone17metersaway.PhotoB:Agiant_thatyoucanuseyourfeettoplay.Insteadofplayingthesoundsofapiano,itplaysthevoicesof_.PhotoC:Youlookatabluescreenforawhile,andthensuddenlyyoucansee_movingaroundonit.Theseareour_.PhotoD:A_whereyoucanseeyourselfreflectedthousandsoftimes.PhotoE:Youstandinfrontof_anditcastsdifferentshadowsofyou,in_therainbow.reflectsmakesitlouderwhisperpianokeyboardclassicalsingerstinybrightlightsownbloodcellshallofmirrorsawhitelighteverycolouroflisteningmaterialJudy:Oh,Imsosorrythatyouwereillandcouldntcomewithusonourfieldtrip.Howareyoufeelingnow?Better?Bill:Muchbetter,thanks.Buthowwasit?Judy:Wonderful!IespeciallylikedanareaofthemuseumcalledLightGames.itwasreallycool.TheyhadahallofmirrorswhereIcouldseemyselfreflectedthousandsoftimes!Bill:Ahallofmirrorscanbealotoffun.Whatelsedidtheyhave?Judy:Well,theyhadanexperimentwherewelookedatabluescreenforawhile,andthensuddenlywecouldseetinybrightlightsmovingaroundonit.Youllneverguesswhatthosebrightlightswere!Bill:Comeon,tellme!Judy:Theywereourownbloodcells.Forsomereason,oureyesplaytricksonuswhenwelookatabluescreen,andwecanseeourownbloodcellsmovingaroundlikelittlelights!ButtherewasanotherthingIlikedbetter.Istoodinfrontofawhitelight,anditcastdifferentshadowsofmeineverycoloroftherainbow!Bill:Oh,IwishIhadbeenthere.Tellmemore!Judy:Well,theyhadanotherareaforsound.Theyhadagiantpianokeyboardthatyoucoulduseyourfeettoplay.Butthen,insteadofplayingthesoundsofapiano,itplayedthevoicesofclassicalsingers!Thentheyhadagiantdish,andwhenyouspokeintoit,itreflectedthesoundbackandmadeitlouder.Youcoulduseittospeakinawhispertosomeone17metresaway.Bill:Itallsoundssocool.IwishIcouldhavegonewithyou.Judy:Iknow,butwecangotogetherthisweekend.Idlovetogothereagain!Bill:Thatsoundslikeagreatidea!listeningmaterial1.TheconversationisabouttheCityofScienceandIndustry,amuseuminParis.Wouldyouliketogotothismuseum?Whyorwhynot?No.ItisnotconvenientbecauseitistoofarfromChinaandthereisnoneedtogosofarwhenwehavesomanyinterestingplacesathome.WecantspeakFrenchandwillhavetroubleinunderstandingwhattodothere.Post-listening:talkaboutsomethingmoreonthescientificmuseumYes.Iwouldliketogotothismuseumtoseethebluescreen.IamcurioustoknowwhatonearthisgoingonthereandwhyIcanseemybloodcellsmovingaroundliketinybrightlights.Iamsureitwillbealotoffun.2.Ifyouwereaguideinthesciencemuseum,whatsciencephenomenonwillyouintroducetovisitors?LetstalkaboutscientificphenomenaToday,I want to talk to you about a verystrangephenomenoncalledanon-Newtonian liquid.You can make it easilyusing equal parts of water and cornflour,like I have here.A non-Newtonian fluid isstrange because you can pour it like aliquid,butifyouputanypressureonit,itsuddenlybecomeshardasconcrete.Infact,itbecomeshardenoughtostandon.Then,as soon as you take the pressure off,itbecomesaliquidagain.Thisshowthatitispossiblethatsomethingcanexistasaliquidandasolidatthesametime.topicexplanationsummaryPost-listening:SampleStudyTalkaboutthe“WaterFilmExperiment”intheTiangongspacestation.EXAMPLEToday,IwanttotalktoyouaboutaverystrangephenomenoncalledYoucanmakeiteasilyusingThisshowsthatPost-listening:talkaboutscientificphenomenausefulexpressions:usefulexpressions:Talkaboutascientificphenomenoninyourdailylife.temperature/temprt(r)/(n.)温度humidity/hjumdti/(n.)湿度moisture/mst(r)/(n.)水分condense/kndens/(v.)冷凝WordBank图片来源于网络Eg.Have you ever seen a foggywindowof a car?When does it happen?Why?2.Homework:Talkaboutascientificphenomenoninyourdailylife.foggycarwindowstopicToday,I want to talk to you about aninterestingphenomenoninourdailylife.ProcessTheory图片来源于网络Sometimes,ourcarwindowsgetfoggy.Thisoccurs when there is a difference in airtemperatureandhumiditybetweentheinsideofthecarandtheoutside.Phenomenon If you get into the car when it is coldoutside,your warm body temperature andthe moisture coming from your breath willincreasethehumidityinthecar.Whenthishumidandwarmairtouchesthecoldglass,thewaterintheaircondensesontheglasstocreatefog.Thoughthis,weknowthatwatercondenseswhenwarmairtouchesthecoldglass.Thisishowfogisformedonthecarwindows.3.Thinkaboutthefunctionofscience:Whydowestudyscience?Whatcanwedowithscientificknowledge?LifeBring new inventions.Make peoples lives easier.MindInspire curiosity and an attitude of discovery.Increase our understanding of the world.SocietyMake further advances in various fields.Shape our modern world.Thank you for your attention！