StepByStep英语听力入门3册答案.docx
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StepByStep英语听力入门3册答案.docx
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StepByStep英语听力入门3册答案
Unit1WorldNewsUpinSpace
PartIWarmingup
1.EndeavorhasdockedwiththeISS.Whatfor?
Toprovideelectricityforscienceexperiments
WhenwilltheU.S.laboratoryarrive?
Nextmonth
2.WhatdoesISShavenow?
Alivingroomandacommandcenter
3.WhathasbeendeclaiedbyNASA?
Pathfinder's30-daymissiononMarsisa100percentsuccess.
4.WhohasgivenupitshopeofrevivingPathfinder?
NASA
WhendidPathfindermakeitslasttransmissionofscientificdatafromMars?
AttheendofSeptember,83daysafteritslanding
5.WhyisGalileoheadingforanotherpassbyJupitersmoonIOonThursday?
Togetacloserlookatthemostvolcanicbodyinsolarsystem
6.WhatisthedauntingtaskforthecrewofAtlantis?
TodeliverNASA's$1.4billionspacelabDestinytotheInternationalSpaceStation
7.WhatisthepurposeoftheexperimentsconductedbyastronautsonColumbia?
Toconfirmatheorythatparticlesinspacetendtoattracteachotherandformdustclouds
8.WhatisEndeavorpreparingtodoonMonday?
ToreturnhomeattheKennedySpaceCenteraftercompletingrepairsontheHubbleTelescope
9.WhyhasColumbiareturnedtoEarthafteranabbreviatedstayinspace?
Becauseofamechanicalproblem
10.WhatisDiscoverydoingnow?
Anditscrew?
DiscoveryisplayingchasewiththeHubbleTelescopenow.
Itscrewissettinguphousekeepingandrecoveringfromtheeffectsofweightlessness.Tapescript:
1.U.S.spaceshuttleEndeavorhasclockedwiththeInternationalSpaceStation,bearingagiftofenergy.Thefive-manshuttleteamarrivedtoaddasetofgiantsolarpowerpanelstoUnitytoprovideelectricityforscienceexperimentsthatwillbeginsoonaftertheU.S.laboratoryarrivesnextmonth.
2.TheInternationalSpaceStationfinallyhasalivingroomandacommandcenter.TheRussianZvezdamoduledockedearliertodaywiththefledglingoutpost,whichisbeingassembledinspace.Afteracheckoutperiod,itwillbereadyforthefirstcrewtoliveinlaterthisyear.
3.TheU.S.SpaceAgencyNASAhasdeclareditsPathfinderspacecraftmissiontoMarsa100percentsuccess.ThisweekthePathfindercompletedits30-dayplannedmissiononMars.AU.S.spaceofficialsaysthisspacecrafthasfulfilledallitsobjectives.
4.TheUnitedStatesSpaceAgencyNASAsaysit'sgivenupanyrealhopeofrevivingitsspaceprobeonMars.ThespacecraftPathfindermadeitslasttransmissionofscientificdatafromthesurfaceofMarsattheendofSeptember,83daysafterlanding.
5.TheU.S.GalileospacecraftisheadingforanotherpassbyJupitefsfierymoonIOThursdaytogetacloserlookatthemostvolcanicbodyinoursolarsystem.Apassjust600kilometersawaylastmonthhasprovidedabetterunderstandingofjusthowactiveitis.
6.Itcouldbeamission-impossible-typeassignmentforthecrewofthespaceshuttleAtlantis.They'vegotthedauntingtaskofdeliveringNASA's$1.4billionspacelabDestinytotheInternationalSpaceStation.Iftheypullitoff,the15-tonlabwillputNASA'sflightcontrollersincharge.UntilnowRussiancontrollershavedirectedoperationsatthestation.
7.AstronautsontheU.S.spaceshuttleColumbiahaveconductedexperimentstoconfirmatheorythatparticlesinspacetendtoattracteachotherandformdustclouds.
8.TheU.S.spaceshuttleEndeavorispreparingtoreturnhomeintriumphaftercompletingrepairsontheHubbleTelescope.TheEndeavorsscheduledtolandMondayattheKennedySpaceCenteronFlorida'sAtlanticcoast,returningtothesitewherethemissionbeganelevendaysago.
9.TheU.S.spaceshuttleColumbiahasreturnedtoEarthafteranabbreviatedstayinspacebecauseofamechanicalproblem.TheSpaceAgencyorderedtheshuttlebacktoEarthafteroneofthethreepowergeneratorsfailedSunday.Thegeneratorscalled“fuelcells11provideallofshuttle'selectricalpower,andNASAsafetyrulesrequirethespaceshiptoreturntoEarthifanyfuelcellfails.
10.DiscoveryisplayingchasewiththeHubbleSpaceTelescoperightnow.Theshuttlelaunchwasnearlyperfectaccordingtomissionmanagers,andthecrewofsevenastronautsissettinguphousekeepingandrecoveringfromtheeffectsofweightlessness.
PartIINewsreports
Event:
NASAs12-yearprogramofMars
-Startingtime:
1996
-Finishingtime:
2008
Firstinstallment:
nNamesofspacecraft:
theMarsGlobalSurveyorOrbiter/thePathfinderLanderArrivaltime:
1997
Mission:
Tocollectandanalyzerocks
Secondinstallment:
--Namesofspacecraft:
thePolarLander/theMarsClimateOrbiter
Launchtime:
December
Arrivaltime:
NextDecember
Mission:
a.Toinspectforsubsurfacewater
b.Tomeasurethedistributionofwatervapor,dustandcondensates
Grandfinale:
--Launchtime:
2005
--Returntime:
2008
--Mission:
ToreturnsoilandrocksamplestoEarth
Tapescript:
OfalltheU.S.andRussianspacecraftthathavetraveledtoMarssincethe1960s,thePolarLanderistobethefirsttotouchdownneartheplanet'ssouthpole.TheLanderandacompanionorbitingcraftcalledtheMarsClimateOrbiter,launchedinDecemberarethesecondinstallmentofa12-yearNASAprogram(beganin1996)tounlockthesecretsofEarth'sredneighbor.
J
ThefirstinstallmenttheMarsGlobalSurveyorOrbiterandthePathfinderLander--arrivedin1997,withPathfindersroboticrovercollectingandanalyzingrocksonadesertabouthalfaworldawayfromthepolarlandingsite.
TheLanderistotouchdownjustabovethenorthern-mostedgeofthesouthpolaricecap,believedtobeamixtureofwaterandcarbondioxide.
Itwilluseretrorocketstoslowitsdescent.Onceonthegrounditwillemployaroboticarmresemblingachild'stoyconstructionshoveltodiginsearchofsubsurfacewater.TogetherwiththenewestorbiternowonitswaytoMars,theLanderwillalsomeasurethedistributionofwatervapor,dustandcondensatesintheMartianatmosphere.
WhilethePolarLanderdescendsnextDecember,itistoreleasetwospeedingprobes,eachsmallerthanabasketball.Theseruggedinstrumentsaretocrashatabout640kilometersperhourandburythemselvesintotheMartiansurfaceabout100kilometersawayfromtheLandefstouch-downpoint.They,too,willbeinspectingforsubsurfacewater.
ThegrandfinaleofthisseriesofMarsprobesistentativelysetforlaunchin2005.ItwouldreturnsoilandrocksamplestoEarththreeyearslater.
Summary:
Thisnewsreporttellsusthatanailingobservatory,theComptonGammaRayObservatory,hasbeenforcedtofallfromitsorbitandcrashintoaremoteareainthePacificOceantoavoiddeathsandinjuriesfromthefallingdebris.
Answerstothequestions:
1.9years
2.16metrictons
3.6tons
4.About4,000kilometerssoutheastofHawaii
5.4J00kilometerslongand26kilometerswide
6.BecauseoneofitsthreestabilizinggyroscopeshadfailedinDecember
7.Itchangedastronomers*viewoftheheavensaftershowingthattheentireuniverseisbathedintheinvisiblegammarays.
Tapescript.
SpaceAgencyNASAforcedanailingobservatorytofallfromorbitandcrashintothePacificOceanonSunday.NASAengineerspickedaremotespottoavoiddeathsandinjuriesfromthefallingdebris.
NASAsaystheComptonGammaRayObservatoryhasmadeafieryplungethroughtheatmosphereintoanisolatedareaofthePacific.
Mostofthenine-year-oldsatellitewastohaveburnedupinthedive,butaboutsixtonsofhotmetalwereexpectedtohaveshoweredontoanisolatedareaaboutfourthousandkilometerssoutheastofHawaii.NASAhadestimatedthatthedebriswouldscatteroveralong,narrowpath41hundredkilometerslongand26kilometerswide.ThedeliberatecrashcameafterGoddardSpaceFlightCentertechniciansdirectedtheobservatoryearlySundaytofireitsthrusterstwicetodiveintotheatmosphere.
NASAfeltthiswasnecessarybecauseoneoftheCompton'sthreestabilizinggyroscopeshadfailedinDecember.TheSpaceAgencydecidedtobringthe16-metric-tonsatellitebacknowinacontrolledmannertopreventpossiblefurthersystemfailuresfromcausingittodroponapopulatedarea.TheCompton'spathtookitovermanypopulatedareas,includingMexicoCity,Bangkok,andMiami.
Comptonexceededitsoriginalfive-yearmissionbyfouryears,resultinginabouttwothousandscientificpapers.
Theobservatorychangedastronomers*viewoftheheavensaftershowingthattheentireuniverseisbathedintheinvisiblegammarays,thehighestenergyformoflight.Itdiscoveredhundredsofpreviouslyunknownsourcesofgammarays,somestreamingfromblackholes,explodingstars,andthesun.
Questions:
1.HowoldistheCompton?
2.HowheavyistheCompton?
3.HowmanytonsofhotmetalwereexpectedtoplungeintothePacific?
4.WhatistheplacethathasbeenchosenforthecrashoftheCompton?
5.HowbigisthepaththatthedebrisoftheComptonwouldscatterover?
6.WhyisitnecessarytoforcetheComptontofallfromitsorbit?
7.WhatsthesignificanceoftheCompton?
c.
Summary:
ThisnewsreporttellsusthatorganicmoleculeshavebeendetectedonthemoonsoftheplanetJupiterandsomeformoflifemighthaveevolvedthere.
MoonsofJupiterFindings
Ganymede
Wrinkledsurfacepockmarkedwithimpactsfromasteroidsandcomets
Ganymede&Callisto
-Chemicalsignalsshowingthereareorganicmoleculescontainingcarbonandnitrogen
--Evidenceofwaterice
EuropaDeepoceans
Tapescript.
AstronomersintheUnitedStatessaytheyhavedetectedorganicmoleculesonthemoonsoftheplanetJupiterwhichcouldindicatetheconditionsarerightthereforsomeformoflifetohaveevolved.AfterstudyingthelatestfindingssentbackbythespaceprobeGalileo,thescientistssaytheyhavefoundchemicalsignalsshowingthatthereareorganicmolecule
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