gravitational waves are the ripples(波纹) in the pond of space 阅读理解答案

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1、Gravitationalwavesaretheripples(波纹)inthepondofspace阅读理解答案　　Gravitationalwavesaretheripples(波纹)inthepondofspacetime.Thegravityoflargeobjectswarpsspaceandtime,or“spacetime”asphysicistscallit,thewayabowlingballchangestheshapeofatrampoline(蹦床)asitrollsaroundonit.

2、Smallerobjectswillmovedifferentlyasaresult—likemarblesspiraling(盘旋)towardabowling-ball-sizeddent(凹迹)inatrampolineinsteadofsittingonaflatsurface.　　Scientistsannouncedthattheyhavesucceededindetectinggravitationalwavesfromtheviolentmerging(兼并)oftwoblackholesinde

3、epspace.Thedetectionwasregardedasavictoryforacontroversial,delicatelycrafted,billion-dollarphysicsexperimentandasconfirmationofakeypredictionofAlbertEinstein’sGeneralTheoryofRelativity.　　Thereisnoobvious,immediateconsequenceofthisphysicsexperiment,butthescien

4、tistssaythisopensanewwindowontheuniverse.Untilnow,astronomyhasbeenalmostexclusiv　　　　elyavisualenterprise:Scientistshavereliedonlight,visibleandotherwise,toobservethecosmos.　　Butnowgravitationalwavescanbeusedaswell.Theycouldpotentiallytakeacensusofblack-holeme

5、rgers,spotthecollisionsofultra-denseneutronstars(中子星),probetheinnerdynamicsofexplodingstarsanddiscovertheoretical“cosmicstrings”leftoverfromthebigbang.　　Thesewaveswillbeparticularlyusefulforstudyingblackholes(theexistenceofwhichwasfirstimpliedbyEinstein’stheo

6、ry)andotherdarkobjects,becausethey’llgivescientistsabrightbeacontosearchforevenwhenobjectsdon’temitactuallight.Mappingtheabundanceofblackholesandfrequencyoftheirmergerscouldgetaloteasier.　　Sincetheypassthroughmatterwithoutinteractingwithit,gravitationalwavesw

7、ouldcometoEarthcarryingundistortedinformationabouttheirorigin.Theycouldalsoimprovemethodsf　　　　orestimatingthedistancestoothergalaxies.　　Itwillalsostartaneweraofastronomyinwhichgravitationalwavesaretoolsforstudyingthemostmysteriousandexoticobjectsintheuniverse

8、.　　33.Accordingtothepassage,whichofthefollowingistrueabouttheexperimentofgravitationalwaves?　　A.Itisasuccessandwasapprovedofbyall.　　B.Itiswelldesignedthoughtimeandmoneyconsuming.　　C.Itpro