高考英语冲刺复习 英语精练20.doc

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1、英语冲刺复习英语精练（20）AAPlanForExploringMarsNASAismovingaheadwithplanstoputalong-armedLanderonMars’icyNorthPoletosearchforcluesforwaterandpossiblesignsoflife．The$386millionPhoenixMarsisplannedtotouchdownintheMartianarcticin2008．Thestationaryprobewilluseitsroboticarmtodigintotheicyla

2、ndandpickupsoilsamplestoanalyze．In2002,theMarsOdysseyorbiterspottedevidenceofice-richsoilnearthearcticsurface．ScientistshopethePhoenixmissionwillfindcluestothegeologichistoryofwaterontheRedPlanetanddeterminewhethermicrobesexistedintheice．PhoenixwillbethefirstmissionoftheMars

3、Scoutprogram,arenewed,low-costefforttostudytheRedPlanet．“ThePhoenixmissionexploresnewterritoryinthenorthernplainsofMarsanalogoustothepermafrostregionsonEarth,”PeterSmithsaid．Truetoitsname,Phoenixrosefromtheashesofpreviousmissions．ThelanderforPhoenixwasbuilttoflyaspartofthe20

4、01MarsSurveyorprogram．Buttheprogrambrokedownafterthewell-knowndisappearanceoftheMarsPolarLanderin1999．ThePolarLanderlostcontactduringalandingattemptneartheplanet’ssouthpoleafteritsrocketengineshutoffprematurely,causingthespacecrafttofallabout130feettoalmostcertaindestruction

5、．ThePhoenixprobehadbeeninstorageataLockheedMartincleanroominDenverbeforeitwasreusedforitspresentmission．ItwillcarryscienceinstrumentsthatweredesignedfortheMarsSurveyorprogramincludinganimprovedpanoramiccameraandatrench-diggingroboticarm．PhoenixwillliftofffromtheKennedySpaceC

6、enterinAugust2007andlandontheplanetninemonthslater．41．Thepassagemainlytellsreadersthat_________．A．cluesofwaterwillbefoundinPhoenixB．PhoenixwillbesenttofindcluesofwateronMarsC．August2007willseePhoenixliftoffD．theMarsScoutprogramwillbecarriedout42．Accordingtothepassage,weknowP

7、hoenixwilllandonMars_________．A．inMay2008B．inAugust2007C．inAugust2008D．inSeptember200843．AfterPhoenixlandsonMars,wecaninferitwillfirstly_________．A．findsoilsamplesandsendthemtotheearthB．lookfortheicylandtodigforthesoilsamplesC．takephotosandsendthemtotheearthD．findtheremainso

8、ftheMarsPolarLanderBSomeweight-losscamps,whicharerareinChinajustafewyearsag