Unit4AstronomythescienceofthestarsⅠ.阅读理解A(2018·浙江杭州期中检测)CycleforScience—thebrainchildofRachelWoods-RobinsonandElizabethCase—isa4,000milebikeridefromSanFranciscotoNewYork.Alongtheway,RachelandElizabethwillmakestopsatclassroomsandsummerprogramstoteachscience,talkwithteachersandencouragegirlstocontinuestudyingscience,technology,engineeringandmath(STEM).RachelandElizabethmetatUCLAwheretheybothstudiedphysics.Inadditiontobeingenthusiasticaboutscienceandsustainability(可持续性),theyalsoshareacommoninterestincycling.CycleforSciencecombinesthesetwointerests.What’scoolisthatthescience“lessons”arenotboringtextbookcoursesbutfunhands-onlearning,centeredaroundasmallsolar-poweredbicyclethattheyarecurrentlydesigning.CalledSolCycle,thetinytwo-wheelerhasbeenproducedusinga3Dprinter.Inadditiontosharingtheirconceptwithstudents,theyplantoreleasethedesignfilesonline,sothatanyonewithaccesstoa3Dprintercan“produce”theircopy.Thoughneitherareeducators,theyoungwomenarenostrangerstoteachingothersaboutscientificconceptsandsustainability.Whileincollege,RachelorganizedEcochella,a“green”concertwithasoundsystemthatwaspoweredentirelybyabicycle-poweredgeneratorthatshedesigned.Herinitiative(积极性)hasinspiredanannualengineeringcompetitionwherestudentteamscompeteagainsteachothertocreateuniquesustainablegeneratorstopowerEcochellaeveryyear.Theircuriosityaboutphysicsledthemtoattendaone-unitseminaron“TheArrowofTime”asfreshmen.Thebestpartisthephysicsmajorsaresointerestedinsciencethattheybothplantopursuefurthereducationinthefield.1.HowdidRachelandElizabethteachkidsaboutscience?A.Byrequiringkidstodesignabike.B.Bymakinguseofsciencetextbooks.C.Byusingabicyclepoweredbysunshine.D.Byaskingkidstorememberscienceconcepts.2.WhatdoweknowaboutSolCycle?A.Itcanbeproducedonline.B.Ithastwosolar-poweredwheels.C.Itismadewiththetechnologyof3D.D.Itisspeciallydesignedforthejourney.3.Thetextismainlyabout.A.thebeginningofCycleforScienceB.adangerousjourneyacrossAmericaC.twogirls’hobbyforscienceincollegeD.across-countryadventurewithamission导学号〚23280060〛B(2018·安徽省江淮十校2018届高三第二次联考)AstronautScottKellyhasbeenlivingontheInternationalSpaceStation(ISS)sinceMarch28,2015.Andjustlikeanyotherhome,theISSrequiressomehousekeepingintheformofrepairs.ThatiswhyKellyandfellowastronautKjellLindgrenperformedextravehicular(舱外的)activity(EVA)outsidethestation.Theoperationbeganat8:03amandlastedformorethansevenhours.Itwasthefirstspacewalkforbothmen.TheISShasbeeninconstantusefor15yearsandhashostedover200people,includingastronautsandprivatetourists.DuringtheirEVA,KellyandLindgrendidbasicelectricalwork,suchasattachingnewcablesthatwouldprovidepowertodockingports(对接舱门)onthestation.Thetwoastronautsalsofixedathermal(保暖的)coveronakeyscientificinstrumentonthestationtoprotectitfromtheharshtemperaturesofspace.Astheseniorastronaut,Kellyledthespacewalk.However,LindgrendealtwithsomeofthemorechallengingpartsofthejobashehaslongerarmsthanKelly.Duringaspacewalk,thesimplestworkbecomesadifficulttask.KellyandLindgrenspentmonthstrainingandpracticingfortheoperation.ThepreparationbeganinNASA’sNeutralBuoyancyLab(NBL),whereastronautsweremadetoworkinanenvironmentsimilartotheoneoutsidethespacestation.Evengettingthespacesuitsreadycantakedays.Whileeachsuitisbuilttofitperfectlytheastronautwhowillwearit,adjustmentsneedtobemaderightuptothem...
