Puqxpg旧托福听力听写必备.docx
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Puqxpg旧托福听力听写必备.docx
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Puqxpg旧托福听力听写必备
生命是永恒不断的创造,因为在它内部蕴含着过剩的精力,它不断流溢,越出时间和空间的界限,它不停地追求,以形形色色的自我表现的形式表现出来。
--泰戈尔
旧托福听力PartC
2004年8月
演讲1:
I’dliketosharewithyoutodaymyexperiencewithanewapproachtobuildingahouse.It’scalledEnvelopBuilding.Essentially,whatitmeansisthatasyouarebuildingahouse,youtrytoleavethelandscapefeatureontheland,especiallythevegetationintheoriginalcondition.Sowhatyouarenotdoingistheusualpracticeoflandscraping.BywhichImeanliterallyscrapingorcleaningthelandofanyandalltheoriginalplants.WhyistheapproachcalledEnvelopBuilding?
Becauseinsteadofclearingeverythingaway,youletyouroriginallandscapeelementsenveloporsurroundyourhouse.Letthevegetationphysicalfeaturessuchashillsandslopesorinterestingrockformations,constitutedasignificantpartofthecharacterofthebuildingsight.Thedesignofthehouseshouldtakethesefeaturesofthepropertyintoaccount.Actuallyintegratingyouroriginalwildlandscapewithahouseisnotthatnew.ThefamousAmericanarchitectWrightwasdoingitabout65yearsago.Soweareingoodcompany.EnvelopBuildingisnotaseasyasitsoundsthough.It’snotjustthatyoubuildyourhouseandleavethelandalone.Bybuilding,youarealreadydamagingtheoriginallandscape.Butasarchitects,weshouldtrytoworkwithenvironment,notagainstit.Acreativearchitectcanfindwaystoincorporatenaturallandscapeintotheoveralldesign.Forexample,whyusedthemassivebouldersonthesideofoneofthemostfamoushousesaspartofthehousefoundation?
演讲2:
Todaywearegoingtotalkaboutcopyrightingworksofart.Acopyrightisaproofofauthorship.Itprotectsartistsagainstsomeoneelseusingtheirworkwithouttheirpermission.It’simportanttorememberthatUnitedStatesCopyrightLawprotectsartisticexpressionssuchaspaintings,butdoesnotprotectanyideas,concept,procedureortechnique.InalltheUnitedStatesCopyrightLaw,Artistsneededtotakeseveralstepstoobtaincopyrightprotection.Thelawaschangedin1978andagain1989.Forartiststhecurrentlawmeanseverythingtheycreateisautomaticallyandimmediatelycopyrighted.Theydon’thavetofileanydocumentsandundertheprotectionoftheCopyrightLaw,anyrecreationoftheiroriginalworksuchasprintsarealsocoveredbytheartistscopyright.Furthermore,anychangesartistsmadetotheiroriginalworksarecovered.TheLawalsomakesitclearthatwhensomeonebuystheworkofart,theyarenotallowedtodestroyorchangethatworkofart.Artistskeepthecopyrightevenaftersellingtheworkofart.Thepurchasermaybuythephysicalwork,buttherighttomakeprintsorcopiesisstilltheartists’andbuyersdoesnotautomaticallyhaveanyrighttomakeandsellprintsorcopiesofwork.Althoughworksareautomaticallycopyrighted,artistsareencouragedtoregistertheirworkwithUnitedStatesCopyrightOffice.Registeringartprovidesadditionallegalprotectionandalsogivesthepeoplearoundtheworldtheabilitytoapproachthehonorsaboutlicensingandpurchasingright.
演讲3:
Todaylet’stalkaboutsynesthesia,that’sabrainconditioninwhichaperson’ssense arecombinedinaunusualways.Forexample,apersonwithsynesthesiamaytastesounds.Tothem,amusicalnotemaytastelikeapickle.Manypeoplewhohavesynesthesiaexperienceintensecolorswhentheyhearspecificwords.Forexample,theymightseeaflashofpinkeverytimetheyheartheword“jump”.Foralongtime,manyscientistswereunconvincedthatsynesthesiareallyexists.Sointhe1990sanexperimentwasdonetofindourforsure.Twogroupswerestudied.Onewasagroupofpeoplewhoclaimtoexperiencecolorswhentheyheardcertainwords.Theotherwasacontrolledgroup,peoplewhoexperiencenothingoutoftheordinarywhenhearingwords.Eachgroupwasaskedtodescribethecolorstheythoughtofwhentheyheardalistofspokenwords.Whenthetestwasrepeated,thedifferencebetweenthetwogroupswasstartling.Afterjustaweek,thecontrolledgroupgavethesameanswersonlyathirdofthetime.Butevenayearandahalflater,thesynestheticgroupgavethesameanswers92%ofthetime.Clearly,thisisnotjustamatterofmemory.Scientistsarestillnotsurejustwhysynesthesiahappens.Butcertaindrugsarereportedlyabletoproduceitartificially.Soweallprobablyhavebrainswithconnectionsthatcouldsynesthesia.It’sjusttheconnectionsnormallyweusedinthatway.
2004年5月
演讲1:
Todaylet’sconsidertheneutrinoandtheresolvesofsomeexperimentsdowninthe1995attheLosAlamosnationallaboratoryinNewMexico,whichbearontheneutrino.Theseresolvessuggestthatthislittleparticledoesindeedhavemassthattinybettobesurebutmeasurablebytheverysensitiveinstrumentsofthatlab.Theneutrino’soriginhasalwaysbeenaninterestingcase,thoughacasenotunusualinthehistoryofphysics.Asyouknow,ordinarilyscientificobservationprecedesscientifictheory.Oceantideswereobserved,oceantideswereexplained;gravityisobserved,gravityisexplained.However,let’sconsiderwhathappenedintheneutrino’scase.Whentheneutrinowasproposedoversixtyyearsago,itwasaconvenientfiction.Scientistshadnotobservedsuchaparticlenorevenasafact.Sowhatletthemtoconceiveofthisimaginaryobject?
Theyhadbeenwritingequationsaboutneutrondecayinwhichtheenergyamountsoneachsideoftheirequationswereunequal.Inordertokeepthisenergyamountsthesameonbothsidesoftheequations,theyaddedlittleparticlenamedneutrinoandgaveitpreciselyenoughenergytobalancetheequationsandtheloanbeholdyearslater.Aboutthirty-fiveyearsagorealneutrinoswerefound.Nowwehavethemorerecentdevelopments.Originally,theneutrinowasthoughtnottohaveanymassatall.ButLosAlamosexperimentsseemtodisprovethispremise.Theyindicatedthatneutrinosdohavemass—aboutone-millionththemassofelectron.
演讲2:
TheforestsofNewEnglandconstitutedbothareresourceandbarrierforthefirstBritishsettlerswhoreachtheseshores.Inadditiontothemaples,firs,oaksandbircheswerewhitepineswhosescientificnameisPinusstrobus.Thesewhitepineswerestraightandtall,perfectforuseasmastsonthesailingshipsofthetime.Britainhadusedupitssupplyofmasttrees,soiseagerforthisproductofitsyoungcolony.BythefirstloadofmastsreachedBritainin1634andBritainwasmarveledthesizeofthetrees,whichhaddiametersofupto4feetatthewideend.Foreveryyardofmastheight,thebodyendneededtobeoneinchindiameter.In1705,Britainpassedalawstatingthatallwhitepinesover24inchesatthebodyendwerereservedfortheuseofking’snavy.Suchtreesweremarkedbyblazingtheking’sarrowsymbolonthetreewiththreecutsofthehatchet.Thesetreeswereselectedbythesurveyorgeneral,whoseworkoftenmetwithresistancesofcolonists.
演讲3:
NowtheAustraliajumpingspiderasyoucanimagegotitsnameforitsabilitytoleap.Butitcanswimtoo.What’smostinterestingthoughisitsabilitytousetryanderrortacticswhensolvingproblems.Nowthejumpingspiderattacksandeatsotherspiders.It’llsitattheedgeofanotherspider'swebandattractthespiderbytappingoutdifferentsignalstomimicthestrugglesofatrappedinsectandit’llkeepchangingthesignalstillsuccessfullylureditspreyout.Well,toseeifthejumpingspidercouldapplythesameproblemsolvingtechnique,tryanderrortounfamiliarsituations,scientistsconductedanexperiment.Theyfieldatrapfullofwaterandthenputsomesandinthemiddle,likeanisland.Inbetweentheislandandtheedgeofthetrap,theyputarock.Whentheyputthespiderontheisland,sometriedjumpingtotherock,andsometriedswimming.Allthespidersthatsuccessfullyreachedtherockeitherbyjumpingorbyswimmingusethesamemethodtomakeitfromtherocktotheedgeofthetree.Ifthespiderfailedtoreachtherock,itwasplacedbackontheisland,butthenexttimetheytrytoleave,spidersdidoppositeofwhateverdidn’tworkthefirsttime,leapingifithadswum,orswimmingifithadleaped.Soweseethespidersusingthesametryanderrorincrossingthewaterastheyusedinhunting.
04年1月:
演讲1:
I’mgoingtopassthispieceofamberaroundsoyoucanseethisspidertrappedinsideit.It’sagoodexampleofamber-inclusion,oneoftheinclusionsthatscientistsareinterestedinthesedays.Thisparticularpieceisestimatedtobeabout20millionyearsold.Pleasebeextremelycarefulnottodropit.Ambershattersaseasilyasglass.OnethingIreallylikeaboutamberisitsbeautifulgoldencolor.
Now,howdoesthespidergetinthere?
Amberisreallyfossilizedtreeresin.Lotsofchunksofambercontaininsectslikethisoneoranimalpartslikefeathersorevenplants.Hereishowithappens.Theresinoozesoutofthetreeandthespiderorleafgetsincasedinit.Overmillionsandmillionsofyears,theresinhardensandfossilizesintothesemipreciousstoneyouseehere.
Amberscanbefoundinmanydifferentplacesaroundtheworld.ButtheoldestdepositsarerighthereintheUnitedStates,inAppalachian.It’sfoundinseveralothercountries,too,thoughrightnowscientistsaremostinterestedinambercomingfromtheDomincianRepublic.Becauseithasagreatanyinclusions,somethinglikeoneinsectinclusionforeveryonehundredpieces.Onepossibleexplanationforthisitthattheclimateistropicalandagreatervarietyofnumberofinsectsthriveintropicsthaninotherplaces.What’sreallyinterestingisthescientistsarenowabletorecoverDNAfromthesefossilsandstudythegeneticmaterialfor
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