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吉安市高一上学期期末教学质量检测(2024.1)物理试卷答案试卷答案

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28.Whatistheprogrammeanttodo?A.Developgoodreadinghabits.C.Raiseenvironmentalawareness.B.Helplocalfarmersinneed.29.Whatisthelocalfamilies'attitudetotheprogram?D.Spreadknowledgeoffarming.A.Doubtful.B.Supportive.C.Surprised.D.Uncertain.30.WhydidMeDowellreadthebooktochildren?A.Toenrichtheirafter-classactivities.B.Toteachthemtochoosehealthyfood.C.Toencouragethemtotakeupfarming.D.Tobuildagoodrelationshipwiththem.31.WhatdoestheauthorpointoutinParagraph4?A.Farmingeducatorsfailtolearnfromotherindustries.B.Localagriculturalindustriesareinadifficultsituation.C.Youngpeopleshowaninterestintheagriculturalprocess.D.Agriculturalindustriesplayamoreimportantrolethanotherindustries.D中论合燕，节调共Whatareblackandyellow,producehoneyandliveatanairport?Don'tletthatlastpartfoolyou.Theanswerisbees.BeesarebeingwelcomedontothelandsurroundingPittsburghInternationalAirporttohelprebuildcolony()numbersinthestate.Thisisaftertheairportswildlifeadministrator,BenShertzer,foundseveralcoloniesfixedontotheundersideofaplane'swings.Surprised,ShertzerhadtohireSteveRepasky,amasterbeekeeper,toremovethehives()fromtheDeltaaircraft'swings,butitalsogothiminterestedintheinsects-aninterestwhichledhimtolearnaboutthetroublebeeswerehavingaroundtheworld.Beekeepersmovetheirhivesacrossthecountrypollinatingorchards(给果园授粉)，andabout35ofagriculturalgoodsintheUSrelytosomedegreeonbees.Afterknowingthat,thetwomencameupwithaplantousethewoodsaroundtheoutsideareaoftheairporttohostacollectionofhives.Now,spreadacrs000acresand110colons,fourmillionbeeslivearoundtheairport.Swarming(成群移动)behaviorwheninspringahiveseparatesandthebeesflyamileormoreknhomeokdasifitwasgoingtobeabitofaproble,sinceatonepointRepaskywasremoving15hivesayearfromrunwayvehiclesandplanes.Yettoolscalled"swarmtraps”placedthesideofthetam(停机坪)havereducedthisnumberdowntothree..Air&.SpaceMagazinereportsthatmanyairportsinthecountryandaroundtheworldareactualybeginngokeepbeesincudingSeatle-Tacoma,Austin-Bergstrom,andMinneapolisSaintPaulInterationalAirport.It'sacurioustrendthatcouldhelpchangedecadesoffallinginbeeopuionwhicharebeginningtoriseagainthankstoreductionsinchemicaluseandtheeffortsofpeoplelikeShertzer.32.InwhatwaydidRepasky'sremovalofhivesinfluenceShertzer?A.Itexcitedhisinterestinbees.B.Itimprovedhisunderstandingofsafety.C.Itchangedhisviewaboutthefunctionofhives.D.Itrenewedhisappreciationofbeekeepers'work.

吉安市高一上学期期末教学质量检测(2024.1)物理试卷答案第一部分

14.(8分)用如图所示装置研究平抛运动。将白纸和复写纸对齐重叠并固定在竖直硬板上。钢球沿斜槽轨道PQ滑下后从Q点飞出,落在水平挡板MN上。由于挡板靠近硬板一侧较低,钢球落在挡板上时,钢球侧面会在白纸上挤压出一个痕迹点。移动挡板,重新释放钢球,如此重复,白纸上将留下一系列痕迹点。

吉安市高一上学期期末教学质量检测(2024.1)物理试卷答案第二部分（待更新）

15.(18分)如图所示,倾角为θ的光滑斜面体固定在水平面上,斜面底端固定一挡板。三个相同θ的小物块A、B、C,质量均为m,小物块A紧靠挡板放置,小物块A和小物块B通过劲度系数kk=mg2L的轻质弹簧相连,开始时A、B均静止。现让小物块C沿斜面从小物块B上端L处由静止释放,小物块B、C碰后一起向下运动(未粘连),当B、C再次分离后撤去小物块C。为弹簧的劲度系数,x为弹簧的形变量,重力加已知弹簧的弹性势能可表示为Ep=12kx^2,k速度为g。(1)求小物块B碰后瞬时速度的大小;(2)求小物块B向下运动的最大位移;(3)现让小物块C沿斜面从小物块B上端另一位置由静止释放,若小物块B沿斜面向上运动到最高点时,小物块A恰好离开挡板,求小物块C开始下落时距小物块B的距离。