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1、（1）山東省實驗中學高三第三次診斷性測試第一節(jié)：閱讀表達(共0.5小題．每小題3分，滿分15分)閱讀下面的短文，請根據(jù)短文后的要求答題(請注意問題后的字數(shù)要求)Asinthefieldofspacetravel,sointheunderseaexploration(探險)newtechnologiescontinuetoappear,Theywitheachother-aswellassomeimportantdifferencesMannedsubmersibles(潛水器),likespaceships,mustmainta
2、inlivingconditionsinanunnaturalenvironment.Butwhileaspaceshipmustsimplybescaled（密封）againstthevacuum(真空)ofspace,asubmersiblemustbeabletobearextremepressureifitisnottobreakupindeepwaterInexploringspace,unmannedvehicleswereemployedbeforeastronauts,Intheunderseaexplorati
3、on,ontheotherhand,menpavedtheway,andonlyrecentlyhaveunmannedremoteoperatedvehicles(ROVS)beenputtouseOnereasonforthisisthatcommunicatingwithvehiclesinorbitismucheasierthantalkingtothoseunderwater,Avacuumisanidealmediumforradiocommunications,butunderwater,communication
4、sarelimitedtomuchslowersoundwaves,.Thus,mostunderseavehicles,particularlyROVS,operateattheendoflongropesForasimilarreasonknowingwhereyouareunderseaismuchmoredifficultthaninspace,Aspaceship’spositioncanbelocatedbyfollowingitsradiosignal,orbyusingtelescopesandradars,Fo
5、rspaceship’spositioncanbelocatedbyfollowingitsradiosignal,orbyusingtelescopesandradars,Foranunderseavehicle,however,aspecialnetworkofsonar(聲納)devicesmustbelaidoutinadvanceonth3oceanfloorintheareaofadivetolocatethevehicle’spositionThoughunderseaexplorationismorechalle
6、ngingthanouterspaceinanumberofrespects,ithasadistinctadvantage:Goingtotheoceandepthsdoesn’trequirethepowernecessarytoescapeEarth’sgravity.Thusitremainsfarlessexpensive76Whatisthebesttitleforthispassage‘’(within10words)77．Whichsentenceinthepassageistheclosestinmeaning
7、tothefollowingone?Similarly,itismoredifficulttoknowwhereyouareunderwater——————————————————————————————————————78Whatdoyouthinkoftheunderseaexploration?Why?(withinords)——————————————————————————————————————79Fillintheblankinthefirstparagraphwithaproperphrase(within10w
8、ords)——————————————————————————————————————80TranslatetheunderlinedsentenceinthelastparagraphintoChinese———————————————————————————
