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1、智课网IELTS备考资料雅思阅读材料:Mars出国英语考试有哪些雅思6.5是什么水平雅思阅读评分标准托福阅读评分标准雅思和托福的区别雅思阅读考试中涉及的知识面很广,有的甚至是同学们平时很少接触到的信息,比如关于科技类的的雅思阅读材料,这篇雅思阅读材料的主要内容是介绍了火星以及科学家登陆火星的一些计划等等。以下就是详细内容,供大家参考,希望对大家在冲刺雅思阅读上能有所帮助。MissionstoMars:arockyroadtotheRedPlanetMissionstoMarsmayhavestalled,butthesearchforsignsoflife
2、continues–byanalysingthe'DNA'ofMartianmeteorites,writesRogerHighfield.雅思阅读材料:MarsArewealoneinthecosmos?Forcenturies,thatquestionhasbeenpurelyspeculative.ButinrecentyearsscientistshavegatheredevidenceofalienlifeonMarsthatisastantalisingasitisinconclusive.Wethoughtwemighthaveadefini
3、tiveanswerin2003,whenBritain's£50millionBeagle2probewasscheduledtotouchdownontheRedPlanet,carryinganinstrumentthatcouldhavedetectedtracesoflivingthings.Butweneverheardfromthelittleprobeagain.Thelosswasamassivedisappointmenttotheprofessorbehindthemission,ColinPillingeroftheOpenUniv
4、ersity.DuringthelateNineties,Ihadseenhimdoggedlyenlistsupportfortheprojectfromfellowspacescientists,thegovernmentandeventhelikesofBlurandtheartistDamienHirst.TheEuropeanSpaceAgencypromisedProfPillingerthattherewouldbeafollow-upprogramme,withamissionassoonas2007.Thatdateslippedback
5、againandagain.TheMarsmissionisnowscheduledfor2018,whenajointmissionwithNasaisduetosendtworoverstosearchforlife.Towardstheendofthisyear,NasawilllaunchtheMarsScienceLaboratorymission,whichwillsetdownarovercalledCuriositythatwillstudywhetherconditionshaveeverbeenfavourableformicrobia
6、llife.Thereis,however,anotherwaytoanswerthisgiantquestion.In1989,ProfPillinger'steamfoundorganicmaterial,typicalofthatleftbytheremainsoflivingthingsonEarth,inameteoritecalledEETA79001.Thisisoneofarelativelysmallnumberofrocks–fewerthan100–thatchemicalanalysisrevealsmusthavebeenblas
7、tedoffthesurfaceoftheRedPlanetbyanasteroidimpactandthensubsequentlyfallentoEarth.TheOpenUniversityteamstoppedshortofsayingtheyhaddiscoveredlifeonMars–but,in1996,EverettGibsonandhiscolleaguesatNasaannouncedthattheybelievedthattheyhaddiscoveredafossilnobiggerthanananometreinanotherm
8、eteorite,knownasALH84001,whichhad