搜题，就来5TiKU.com题库【问题】 Thefarsideofthemoonisastrangeandwildregion，quitedifferentfromthefamiliarandmostlysmoothfaceweseenightlyfromourplanet.Soonthisroughspacewillhaveevenstrangerfeatures：itwillbecrowdedwithradiotelescopes. Astronomersareplanningtomakethemoon'sdistantsideournewe
Thefarsideofthemoonisastrangeandwildregion，quitedifferentfromthefamiliarandmostlysmoothfaceweseenightlyfromourplanet.Soonthisroughspacewillhaveevenstrangerfeatures：itwillbecrowdedwithradiotelescopes. Astronomersareplanningtomakethemoon'sdistantsideournewestandbestwindowonthecosmic（宇宙的）darkages，amysteriouserahidingearlymarksofstarsandgalaxies.Ouruniversewasnotalwaysfilledwithstars.About380，000yearsafterthebigbang，theuniversecooled，andthefirstatomsofhydrogenformed.Gigantichydrogencloudssoonfilledtheuniverse.Butforafewhundredmillionyears，everythingremaineddark，withoutstars.Thencamethecosmicdawn：thefirststarsflickered，galaxiescameintoexistenceandslowlytheuniverse'slarge-scalestructuretookshape. Theseedsofthisstructuremusthavebeenpresentinthedark-agehydrogenclouds，buttheerahasbeenimpossibletoprobeusingoptical（光学的）telescopes-therewasnolight.Andalthoughthishydrogenproducedlong-wavelength（orlow-frequency）radioemissions，radiotelescopesonEarthhavefounditnearlyimpossibletodetectthem.Ouratmosphereeitherblocksordisturbsthesefaintsignals；thosethatgetthrougharedrownedoutbyhumanity'sradionoise. Scientistshavedreamedfordecadesofstudyingthecosmicdarkagesfromthemoon'sfarside.Nowmultiplespaceagenciesplanlunarmissionscarryingradio-wave-detectinginstruments-somewithinthenextthreeyears-andastronomers'dreamsaresettobecomereality." "If I were to design an ideal place to do low-frequency radio astronomy， I would have to build the moon，" saysastrophysicistJackBurnsoftheUniversityofColoradoBoulder."Wearejustnowfinallygettingtotheplacewherewe'reactuallygoingtobeputtingthesetelescopesdownonthemooninthenextfewyears."（1）What'sthepurposeofbuildingradiotelescopesonthemoon？______A.Toresearchthebigbang.B.Todiscoverunknownstars.C.Tostudythecosmicdarkages.D.Toobservethefarsideofthemoon.（2）Whatdoestheunderlinedword"probe"inParagraph3possiblymean？______A.Explore.B.Evaluate.C.Produce.D.Predict.（3）Hydrogenradioemissionscan'tbedetectedonEarthbecause______.A.therewasnolightinthedarkagesB.theycannotpossiblygetthroughouratmosphereC.gigantichydrogencloudsnolongerfilltheuniverseD.radiosignalsonEarthcausetoomuchinterference（4）Whatcanweinferfromtheunderlinedsentenceinthelastparagraph？______A.Scientistshavetorebuildthemoon.B.Wewillfinallygettothemoon'sdistantside.C.Themoonisaperfectplacetosetupradiotelescopes.D.Afavorableresearchenvironmentwillbefoundonthemoon.
正确答案：（1）C. 推理判断题。根据第一段"The far side of the moon is a strange and wild region， quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features： it will be crowded with radio telesco
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本文是一篇说明文。文章介绍了科学家们想要在月球背面架设射电望远镜，以此来研究宇宙暗黑纪元。
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