专题限时检测(十五)阅读理解之科普类(共3篇，限时24分钟)A(2014·合肥第三次教学质量检测)ScientistsinUKhavegrownalivinghuman“brain”.TheteamatAstonUniversitycreatedtinybunchofcellswhichactlikeamininervoussystem.TheybelieveitcouldhelpfindacureforworsementalconditionslikeParkinson’sdisease.ProfessorMichaelColemanisleadingtheresearchprogram.Heexplained，“Weareaimingtobeabletostudythehumanbrainatthemostbasiclevel,usinganactuallivinghumancellsystem.Cellshavetobealiveandoperatingefficientlytoenableustoreallyunderstandhowthebrainworks.”Theexperimentinvolveschangingcellsfromacancertumour(肿瘤)andmakingthembehavelikebraincells.Althoughfarfromfinished,researchershopethefalsebraincellswillgivethemagreaterunderstandingofhowrealbrainswork.This,inturn,couldsignificantlyfurtherresearchintoconditionswhichaffectthebrain.NeilHunt,chiefleaderoftheresearchgroup,said，“Itisstillveryearlydays,butinthefuturetheresearchcouldleadtoausefultoolforlookingintodementia(痴呆)．”ThetechniquecouldalsoprovideawaytocarryonanimaltestandisbeingsupportedbytheHumaneResearchTrust(HRT).Thescientistspredictthatoverthenexttenyearsamillionpeoplewilldevelopdementia.ProfessorColemanbelievestheirfindingscouldchangethis.Hesaid，“Wehopeourresearchwillprovidescientistswithanewandhighlyrelationalhumanexperimentalmodeltohelpthemunderstandthebrainbetteranddevelopnewdrugstocontroltherelateddisease.However,thebiggestchallengeatpresentisthatwearegreatlyshortoffund,whichwillslowourresearch.”1．UKscientistsgrowalivinghuman“brain”inorderto________.A．studythestructureofhumanbrainB．makeuseoflivinghumancellsystemC．discoverhowhumanbrainreallyworksD．separatecellsfromacancertumour2．AccordingtoNeilHunt,researchintobraincells________.A．willgetfinishedasearlyaspossibleB．willmakepeoplediscoverdementiaC．willaffectthebraingrowthinmanywaysD．willhelptotreatsomediseasesinnervesystem3．Fromthelastparagraph,wecanknowthat______.A．thetechniqueprovidedbyHRTisimmatureB．animaltestsarenolongerallowedbylawC．amillionpeoplesufferfrombraindiseasesD．theresearchprogramlacksfinancialsupport4．Thetextisintendedto________.A．tellusaboutabreakthroughinmedicalresearchB．introducearesearchprograminhuman’sbrainC．introducetheprogressofdrugsfordementiaD．tellusabouthealthprobleminnervesystemB(2014·天门高三质检)HightechglassesdevelopedatWashingtonUniversitySchoolofMedicineinSt.Louismayhelpsurgeonsvisualizecancercells,whichglowbluewhenviewedthroughtheeyewear.Cancercellsarenotoriouslydifficulttosee,evenunderhighpoweredmagnification.Theglassesaredesignedtomakeiteasierforsurgeonstodistinguishcancercellsfromhealthycells,helpingtoensurethatnotumorcellsareleftbehindduringsurgery.“We’reintheearlystagesofthistechnology,andmoredevelopmentandtestingwillbedone,butwe’recertainlyencouragedbythepotentialbenefitstopatients，”saidbreastsurgeonJulieMargenthaler,MD,anassociateprofessorofsurgeryatWashingtonUniversity.“Imaginewhatitwouldmeaniftheseglassesgotridoftheneedforfollowupsurgeryandtheassociatedpain,inconvenienceandanxiety.”Currentstandardofcarerequiressurgeonstoremovethetumorandsomeneighboringtissuethatmayormaynotincludecancercells.Thesamplesaresenttoapathology(病理)labandviewedunderamicroscope.Ifcancercellsarefoundinneighboringtissue,asecondsurgeryisoftenrecommendedtoremoveadditionaltissuethatisalsocheckedforthepresenceofcancer.Theglassescouldreducet...
