全新版大学英语第一册教师用课件Unit3_Public_Attitudes_Toward_Scien

HomeBeforeReadingGlobalReadingDetailedReadingAfterReadingBeforeReading1.Warm-upExercisesJourneyonthePaperBrainstormingClone2.BackgroundInformationStephenHawkingAlbertEinsteinFrankensteinBR_MainJourneyonthePaperBR_warm_JourneyonthePaperNowlet’sgoonajourneythroughthemostspectacular100yearsinthehistoryofscienceandtechnologytohaveanoverviewofhowourunderstandingoftheworldhasgrownfrom1900totoday.BeforeReadingGlobalReadingDetailedReadingAfterReadingHome1900:MATTERSOFLIFEANDDEATH--MedicineandHealthToday:BR_warm_Journey-MATTERS-BeforeReadingGlobalReadingDetailedReadingAfterReadingHomePatientsbattleillness,whiledoctorscandolittlemorethancounsel（劝告）andcomfortthemandkeepthemclean.Doctorstreatandoftencurepatientswithavastarray(一大批)ofmedicinesandmedicaltechnologies,butsomediseasesarestillincurable.1900:MYSTERIESOFTHEUNIVERSE--PhysicsandAstronomyToday:BR_warm_Journey-MYSTERIESBeforeReadingGlobalReadingDetailedReadingAfterReadingHomeTheMilkyWaygalaxy（星系）(includingsomeunexplainednebularclouds（星云）)istheknownuniverse.Newton’slawsexplainthephysicalworld.Matteriscomposedofatoms.TheMilkyWayisjustonegalaxyamongcountlessmillionswehaveobservedintheuniverse.Thereisnosetoflawsthatexplainsallphenomenainthephysicalworld,althoughtherearemanytheories.Atomsarecomposedofmanysubatomicparticles,allofwhichderivefrom（来自于)energy.1900:Today:BR_warm_Journey-RESEARCHRESEARCHINTOOURSELVES--HumanBehaviorBeforeReadingGlobalReadingDetailedReadingAfterReadingHomeMentalillnesscanbetreatedwitharangeoftherapies(治疗)andmedications.Weknowagreatdealaboutthechemistryandthepartsofthebrainthatcontrolourbehaviorandthoughts.Thereisnocureforthementallyill,whoareconfinedtoinsaneasylums(精神病院).“Mind”and“body”arethoughtofastwoseparatethings.1900:TheonlywaytoviewtheOlympicGamesinParisisinperson.NewsabouttheGamestravelstoAmericavia（通过）telegraphandisprintedinnewspapers.Today:BR_warm_Journey-FCBFASTER,CLOSER,BETTER--TechnologyBeforeReadingGlobalReadingDetailedReadingAfterReadingHomeMillionsworldwidewillwatchthe2008BeijingOlympicsontelevision,transmittedinstantaneously(瞬间地)bysatellite.Thenewswillspreadaswellbyradio,newspaper,andtheWorldWideWeb.1900:Thereisnogoodexplanationforcatastrophiceventssuchasearthquakes.TheEarthisthoughttobeamere50millionyearsold,andtheevolutionofspeciesishotlydebated.ORIGINS--EarthandLifeScienceToday:BR_warm_Journey-ORIGINSBeforeReadingGlobalReadingDetailedReadingAfterReadingHomeTheplates(板块)thatmakeuptheEarth’scrust(地壳)moveovertime,causingearthquakesandvolcanoes.TheEarthisknowntobe4,500millionyearsold.ThegeneticcodeofDNA,whichdrivesevolution,isbetterunderstoodeveryday.BrainstormingBR__warm-Brainstorming-Brainstormsome…1.Brainstormsomeofthescientificandtechnologicalinventions.e-mailmobilephoneclonenuclearweaponslaptop(笔记本电脑)nanotechnology(纳米技术)geneticengineeringBeforeReadingGlobalReadingDetailedReadingAfterReadingHomeBrainstormingBR__warm_Brainstorming-Discussion2.DiscussionDoalltheseinventionsalwayschangeourlivesforthebetter?Giveexamplestoexplainyouropinion.BeforeReadingGlobalReadingDetailedReadingAfterReadingHomeBR_warm__Clone-new1.newsListentothethreepiecesofnewsaboutclone.News2InApril1998News1InFeb.1997News3InFeb.2003BeforeReadingGlobalReadingDetailedReadingAfterReadingHomeBR_warm__Clone-new-1InFebruary1997agroupofgeneticists(遗传学家)ledbyIanWilmutattheRoslinInstituteinEdinburgh,Scotland,announcedthattheyhadclonedasheepfromthemammaryglandtissue(乳腺组织)ofasix-year-oldewe(母羊),thefirsttimescientistshavebeenabletocloneanadultmammal(哺乳动物).BeforeReadingGlobalReadingDetailedReadingAfterReadingHomeBR_warm__Clone-new-2Dolly,thefirst-evermammaltobesuccessfullyclonedfromanadultcell,withherfirstlamb,namedBonnie,isseenattheRoslinInstituteinEdinburgh,ScotlandinthisimageonApril23,1998.Dolly,whowasnaturallymatedattheendoflastyearwithaWelshMountainram（公羊）,gavebirthtoBonnieonApril13,provingthatdespiteherunusualorigins,sheisabletobreednormallyandproducehealthyoffspring.BeforeReadingGlobalReadingDetailedReadingAfterReadingHomeBR_warm_Clone-new-3Dolly,thesheep,thefirstmammaltobesuccessfullyclonedfromanadultcell,hasbeenputdownaftershewasfoundtohavealungdisease,theRoslinInstituteinScotland’scapitalEdinburghsaidonFeb17,2003.“Shewassufferingfromanincurabledisease,”saidDrHarryGriffin,afterRoslinreleasedastatementsayingthedecisionhadbeentakentoputDollydownaftershecontracted（感染）progressivelungdisease.------------------BeforeReadingGlobalReadingDetailedReadingAfterReadingHomeBR_warm_Clone-Discussion2.DiscussionWhatisyourattitudetowardsclone?Cloneisamemberofagroupoforganismsorplantsproducednon-sexuallyfromoneancestor.Thesuggestedethicalandpracticalargumentsbothforandagainstcloning：For:Close1.Animalsfromendangeredspeciescouldbeclonedtopreventextinction.2.Cloningwouldbeagoodsourcefororganandbonemarrow(骨髓)transplants.3.Sterile（不育的）coupleswillbeabletohaveoffspringwhowillhaveeitherthemother’sorfather’sgeneticpattern.1.Technologyisnotwelldeveloped.Ithasalowfertilityrate（出生率）.IncloningDolly,277eggswereused,30startedtodivide,nineinducedpregnancy,andonlyonesurvivedtoterm(临产).2.Clonesmaybe