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(湖北专用)高考英语二轮复习 专题限时检测(二十一)阅读理解之自然类VIP免费

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专题限时检测(二十一)阅读理解之自然类(共3篇,限时23分钟)A(2014·武昌区高考适应性测试)Browncowsmaynotactuallymakechocolatemilk,butpinksilkworms(蚕)doproducepinksilk,ateamofscientistshasdiscovered.Toseeiftheycouldproducepredyedsilk—silkthatcomescolored,straightfromthesource—theteamfedordinarysilkwormsmulberry(桑树)leavesthathadbeensprayed(喷洒)withfabric(织物)dyes(染色剂).Outofseventesteddyes,onlyoneworked,producingathreadthatremindedmeofpinkdyedhair.Andyes,thewormsthemselvestakeonsomecolorbeforetheyproducesilk.Theircolorfuldietsdidnotaffecttheirgrowth,theteam,whichincludedengineersandbiologistsfromtheCSIR—NationalChemicalLaboratoryinIndia,reportsinthejournalACSSustainableChemistry&Engineering.(Theresearchersdidn’tlooktoodeeplyintohowthedyesaffectedthesilkworms’health.Afterall,silkwormsdiewhenpeopleharvesttheirsilk.)Theteammadedyeingsilkthiswaybecausecoloringfabricnormallyuseslargeamountsoffreshwater.Thewatergetspollutedwithdangerouschemicalsintheprocess,requiringcostlytreatmentbeforefactoriescansenditbackintowaterways.Dyeingsilkdirectlybyfeedingsilkwormswouldavoidthosewaterwashingsteps.Scientistsarejuststartingtostudythisidea.However,itremainstobeseenifit’scommerciallysuccessful.Inthisexperiment,theIndianteamtestedsevendyes,whicharecheapandpopularintheindustry.Thescientistsfounddifferentdyesmovedthroughsilkworms’bodiesdifferently.Somenevermadeitintotheworms’silkatall.Otherscoloredthewormsandtheirsilk,butthecolordisappearsbeforethesilkisturnedintofabric.Onlyonedye,named“directacidfastred”,showedupinthefinal,washedsilkthreads.Bythetimeitmadeitthere,itwasapleasant,lightpink.1.Thetextismostprobablya(n)________.A.sciencereportB.touristguideC.animalexperimentD.fashionadvertisement2.Silkwormscanproducepinksilkbecause________.A.theyarebornpinkB.theyaredyedpinkC.theygrowinpinkwaterD.theyarefeddyedfood3.Wherewastheexperimentcarriedout?A.InAmerica.B.InIndia.C.InIsrael.D.InChina.4.Howmanydyeshavebeenprovedsuccessfulintheexperiment?A.One.B.Three.C.Five.D.Seven.B(2014·武汉七校第一次联合考试)It’sthebeginningof2014,butasUSATodaysays,“it’snevertooearlytoplanyour2014travels”.Withsomanyhotdestinationsaroundtheglobe,“whereshouldIgo?”canbedifficulttoanswer.AccordingtoLonelyPlanet,though,Brazilisafinechoice—onOct29th,thetravelguidenamedthatcountrythetoponetovisitin2014.“Asifendlesscoastandmountainssplashed(飞溅)withrainforestdidn’talreadyadduptoanunfairshareofheaven,Brazilwillholdtwoofthegreatestsportingeventsintheworld,beginningwiththe2014FIFAWorldCupandfollowedbythe2016SummerOlympics,”explainedLonelyPlanet.Brazilisthelargestandmostpopulous(人口稠密的)countryinSouthAmerica.Itboasts(自豪拥有)theAmazon,theworld’slargestjungle,whichishometoavarietyofplantsandanimals.ButthegreatsceneryisnottheonlythingBrazilianstakepridein.ThecolorsgreenandyellowmightmakemostpeoplethinkofBrazil’ssoccerteamevenmorethanitsnationalflag.SoccerismorethanasportinBrazil;it’sawayoflife.Infact,theWorldCupbringsBrazilianstogether.ItisinterestingtonotethatthegeneralelectionsinBrazilareusuallyheldduringthesameyearastheWorldCup.Politicalpartiestrytotakeadvantageofthepatrioticenthusiasm(爱国热情)createdbysoccertoinspirepoliticalenergy.Alongsidesoccer,sambaisanothersymbolofBrazil.Thecountry’smosttraditionaldanceishighlightedeveryFebruaryattheRioCarnival,whichisoneoftheworld’sbi...

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(湖北专用)高考英语二轮复习 专题限时检测(二十一)阅读理解之自然类

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