搜题，就来5TiKU.com题库【问题】 ScientistsatUniversityCollegeLondonhavediscoveredsetsofregulatorygenes，whichareresponsibleformaintaininghealthyhearing.Thefinding，madeinfruitflies，couldleadtotreatmentsforage-relatedhearingloss（ARHL）inhumans. Globally，one-thirdofpeopleagedover65experience
ScientistsatUniversityCollegeLondonhavediscoveredsetsofregulatorygenes，whichareresponsibleformaintaininghealthyhearing.Thefinding，madeinfruitflies，couldleadtotreatmentsforage-relatedhearingloss（ARHL）inhumans. Globally，one-thirdofpeopleagedover65experiencehearingimpairment，andwhiletherearethoughttobemorethan150genesthatmayaffecthearingloss，thereisnounifiedviewonhowtousethesetodevelophearinglosstreatments. Inthestudy，publishedinScientificReports，researchersattheUCLEarInstituteassessedthehearingabilityofthecommonfruitflyacrossitslifespan（around70days）toseeiftheirhearingdeclineswithage. Afruitfly'searssharemanymolecularsimilaritieswiththeearsofhumans，makingitanidealtoolforthestudyofhumanhearingloss. ResearchersfoundthattheantennalearsoffruitfliesalsodisplayARHLwithnearlyallsensitivehearingmeasuresstartingtodeclineafter50daysofage.Thismadetheresearcherswanttoknowiftherewereany"age-variable"genesintheflies'innerearswhichhavekepttheearshealthyfor50daysoftheirlives. Aftercloserexamination，researchersidentifiedanewsetofregulatorygenes-homeostasisgenes.Thesegenesareoftenresponsibleforpickingupsoundandtheoverallsensitivityoftheear.Usingthisinformation，scientistswerethenabletogeneticallymodifythegenesandpreventthefliesfromgettingARHL. ProfessorJoergAlbert，leadauthorofthestudy，said："Whilemanystudieshavebeenconductedintothehearingfunctionoffruitflies，oursisthefirsttolookatthemechanisticandmoleculardetailoftheirauditorylifecourse." "Thefactthatthesegenesareconservedinhumanswillalsohelptofocusfutureclinicalresearchinhumansandtherebyacceleratethediscoveryofnewpharmacologicalorgene-therapeuticstrategies."（1）WhatdidscientistsatUCLdiscover？______A.Homeostasisgenesmaintainone'sabilitytohear.B.One-thirdofpeopleagedover65havehearingproblems.C.Thereareregulatorygenesthatarerelatedtoaging.D.Humanshaveover150genesthatcanaffecthearingloss.（2）Whywerefruitfliesusedintheresearch？______A.Theysharemanygeneswithhumans.B.TheydisplayARHLduringtheirlifespan.C.Theirhearingabilityalsodeclineswithage.D.Theirhearingsystemissimilartothatofhumans'.（3）Whatisthemainpurposeofthelasttwoparagraphs？______A.Thediscoveryofnewtreatments.B.Thesignificanceofthestudy.C.Theresultofthestudy.D.Thefuturecommercialprospects.（4）Whichofthefollowingwouldbethebesttitleforthetext？______A.Age-relatedhearingloss：fruitfliesandhumansB.Hearingloss：acommonproblemforolderadultsC.GenediscoverycouldleadtohearinglosstreatmentsD.Thebody'sabilitycanbeunlockedtotreatlosthearing
正确答案：（1）A.细节理解题。根据第六段"After closer examination，researchers identified a new set of regulatory genes-homeostasis genes. These genes are often responsible for picking up sound and the overall sensitivity of the ear. "（经过更仔细的研究，研究人员发现了一组新的调节基因--稳态基因。这些基因通常负责
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