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1、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:Lookatthephotosandtalkaboutwhattheseacti
2、vitieshavetodowithscience.Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.BapianokeyboardplaywithfeetAA.Ithinkthedishinthisexhibitionisrelatedtosound.Maybetheboyiswhisperingintothesmallercircleandthedishcanmakehisvoicelouder.B.Thislookslikeapianoyouplaywithyourfeet.Maybei
3、tshowshowsoundworks.Pre-listeningagiantdishwhisperCDahallofmirrorsreflectabluescreenbrightlightsC.Imnotsurewhatthisoneshows,butitmustbeaboutlightoreyesight.D.Itisahallofmirrors.Maybeithastodowiththeprinciplesofreflection.Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.Pre
4、-listeningEawhitelightcastshadowsinthecolouroftherainbown.彩虹n.阴影v.投射E.Thisisprobablyanexperimentinvolvingthecompositionoflight.Activity1:Lookatthephotosandtalkaboutwhattheseactivitieshavetodowithscience.Pre-listeningActivity2.Thephotosarerelatedtotheconversationyouwillhear.Usingthephotos,trytopredic
5、ttheanswerstothefollowingquestions.(1)Wherearethepeopleintheconversationgoingtogo?(2)Whatkindofplaceisit,andwhatdoesitfocuson?Theyaregoingtoasciencemuseum.Itisasciencemuseumthatfocusesonlettingvisitorsexperiencesciencethroughinteractive(互动的)learningexhibitions.Pre-listeningWhile-listening1.Listentot
6、heconversationandseeifyouranswersforActivity2arecorrect.Thenwritedowntheletters(A-E)forthephotosintheorderthatyouhearthemdescribed.(P.6Ex.3)TIP:Trytonotedownthekeyphrases.1._2._3._4._5._lightgamesahallofmirrorsabluescreentinybrightlightscastshadowscoloursofrainbowanareaforsoundapianokeyboardagiantdi
7、shspeakinawhisperDCEBAWhile-listening2.Listenagainandcompletethedescriptionsofthephotos.(P.6Ex.4)PhotoA:Agiantdish;whenyouspeakintoit,it_thesoundbackand_.Youcanuseittospeakina_tosomeone17metersaway.PhotoB:Agiant_thatyoucanuseyourfeettoplay.Insteadofplayingthesoundsofapiano,itplaysthevoicesof_.PhotoC
8、:Youlookatabluescreenforawhile,andthensuddenlyyoucansee_movingaroundonit.Theseareour_.PhotoD:A_whereyoucanseeyourselfreflectedthousandsoftimes.PhotoE:Youstandinfrontof_anditcastsdifferentshadowsofyou,in_therainbow.reflectsmakesitlouderwhisperpianokeyboardclassicalsingerstinybrightlightsownbloodcells
9、hallofmirrorsawhitelighteverycolouroflisteningmaterialJudy:Oh,Imsosorrythatyouwereillandcouldntcomewithusonourfieldtrip.Howareyoufeelingnow?Better?Bill:Muchbetter,thanks.Buthowwasit?Judy:Wonderful!IespeciallylikedanareaofthemuseumcalledLightGames.itwasreallycool.TheyhadahallofmirrorswhereIcouldseemy
10、selfreflectedthousandsoftimes!Bill:Ahallofmirrorscanbealotoffun.Whatelsedidtheyhave?Judy:Well,theyhadanexperimentwherewelookedatabluescreenforawhile,andthensuddenlywecouldseetinybrightlightsmovingaroundonit.Youllneverguesswhatthosebrightlightswere!Bill:Comeon,tellme!Judy:Theywereourownbloodcells.For
11、somereason,oureyesplaytricksonuswhenwelookatabluescreen,andwecanseeourownbloodcellsmovingaroundlikelittlelights!ButtherewasanotherthingIlikedbetter.Istoodinfrontofawhitelight,anditcastdifferentshadowsofmeineverycoloroftherainbow!Bill:Oh,IwishIhadbeenthere.Tellmemore!Judy:Well,theyhadanotherareaforso
12、und.Theyhadagiantpianokeyboardthatyoucoulduseyourfeettoplay.Butthen,insteadofplayingthesoundsofapiano,itplayedthevoicesofclassicalsingers!Thentheyhadagiantdish,andwhenyouspokeintoit,itreflectedthesoundbackandmadeitlouder.Youcoulduseittospeakinawhispertosomeone17metresaway.Bill:Itallsoundssocool.Iwis
13、hIcouldhavegonewithyou.Judy:Iknow,butwecangotogetherthisweekend.Idlovetogothereagain!Bill:Thatsoundslikeagreatidea!listeningmaterial1.TheconversationisabouttheCityofScienceandIndustry,amuseuminParis.Wouldyouliketogotothismuseum?Whyorwhynot?No.ItisnotconvenientbecauseitistoofarfromChinaandthereisnone
14、edtogosofarwhenwehavesomanyinterestingplacesathome.WecantspeakFrenchandwillhavetroubleinunderstandingwhattodothere.Post-listening:talkaboutsomethingmoreonthescientificmuseumYes.Iwouldliketogotothismuseumtoseethebluescreen.IamcurioustoknowwhatonearthisgoingonthereandwhyIcanseemybloodcellsmovingaround
15、liketinybrightlights.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
16、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,Iwanttotalktoyouaboutaverystrangephenomenoncall
