安徽省凤台片区2023-2024学年度第一学期九年级期末教学质量检测(试题卷)数学.考卷答案

安徽省凤台片区2023-2024学年度第一学期九年级期末教学质量检测(试题卷)数学.考卷答案试卷答案,我们目前收集并整理关于安徽省凤台片区2023-2024学年度第一学期九年级期末教学质量检测(试题卷)数学.考卷答案得系列试题及其答案，更多试题答案请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)

安徽省凤台片区2023-2024学年度第一学期九年级期末教学质量检测(试题卷)数学.考卷答案试卷答案

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DCanexerciseduringchildhoodprotectyouagainstmemorylossmanyyearslater?Exerciseearlyinlifeseemstohavelifelongbenefitsforthebrain,inratsatleast."Thisisananimalstudy,butitshowsthatphysicalactivityatayoungageisveryimportant-notjustforphysicaldevelopment,butforthewholelifelongtrackofcognitivedevelopmentduringageing,saysMartinoftheUniversityofToronto,Canada."Inhumans,itmayputofftheappearanceofAlzheimer's(阿a兹海默症)symptoms,possiblytothepointofpreventingthem.“Martin'steamdivided80youngmaleratsintotwoequalgroups,andplacedrunningwheelsinthecagesofonegroupforaperiodofsixweeks.Aroundfourmonthslater-whentheratshadreachedmiddleage-theteamtaughtalltheratstoconnectanelectricshockwithbeinginaspecificbox.Whenplacedinthebox,theyfrozewithfear.Twoweekslater,theteamtestedtheratsinthreesituations:exactlythesameboxinthesameroom,thesameboxwiththeroomarrangeddifferently,andacompletelydifferentboxinadifferentroom.Theratswithoutaccesstoarunningwheelwhentheywereyoungnowfrozethesamepercentageoftimesineachofthesesituations,suggestingtheycouldn'trememberwhichonewasdangerous.Butthosethathadbeenabletorunintheiryouthfroze40to50percentlessinbothchangedboxsettings."Theresultssuggesttheamountofphysicalactivitywhenwe'reyoung,atleastforrats,hasinfluenceonbrainandcognitivehealth-intheformofbettermemories-whenwe'reolder,"saysArthurKramerofNortheasternUniversityinBoston,whohasfoundthat,inhumans,exerciseimprovesthegrowthofnewbraincells.32.ThestudyshowsthatA.exercisewhenyoungcanpreventmemorylosswhenolderinratsB.physicalactivityisimportantforphysicalhealthC.usingtherunningwheelsisofbenefittotherats'growthD.physicalactivitycanpreventhuman'sAlzheimer'ssymptoms33.Whatdoestheunderlinedword"it"inParagraph2referto?A.studyB.developmentC.benefitD.exercise34.HowareParagraph3and4mainlydeveloped?A.Byanalyzingcauses.B.Bygivinganexample.C.Byshowingdifferences.D.Bydescribingtheprocess.35.Whatistheauthor'sattitudetowardstheanimalstudy?A.Surprised..B.Critical(批判性的).C.Objective(客观的).D.Doubtful.第二节（共5小题：每小题2.5分，满分12.5分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项

选项中有两项为多余选项

Aeyouthinkingabouttravelingalone?Youmusthaveamillionquestions:Whereshouldyougo?Willtherebesomeonetotalkto?36Andisitallrighttotravelalone?Infact,travelingaloneisnotasscary()asitseems.HerearesomegoodtipsChooseaplacewhereyoufeelcomfortableandsafeTruthbetold,travelingaloneforthefirsttimeismoreabouttheexperiencethanthedestination.37Itcouldbesomewhereclosetohomeorsomewhereyou'vealreadybeenwithfriends.Makeaplan高一英语学科试题第5页（共8页）

6.实验发现同时切除胰腺及垂体的动物生长停滞,如果单独给予胰岛素或生长激素,促进动物生长但()作用不显著,但如果这两种激素同时给予,则动物生长明显加快。下列叙述错误的是A.生长激素具有促进生长发育、提高神经系统的兴奋性等作用B.该实验应用了自变量控制中的“加法原理”和“减法原理”C.在促进机体生长方面,胰岛素与生长激素具有协同作用D.胰岛素能抑制肝糖原分解和非糖物质转变成葡萄糖