[今日更新]2023-2024学年度下学期高三自我提升三[HZ].物理试卷答案

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ofthisthatthebookseedganthebookisritteforchildre.Differentihavetheirownwaystounderstandthebookandwillconsideritinteresting.28.Whatisthebookmainlyabou?dd好学义3i会士半J者A.Aboy'sgreatloveforatree.:克培的销的转B.Aboy'sdependenceonaforest.容内特奥指，C.Aboy'srelationshipwithatree张意生D.Aboy'sinterestinglifeinaforest.:去00以婆厨29.Whyisthebooksuitableforyoungreadersintheauthor'sopinion?A.Itsstoryistouching器火天1H20551在B.Itsexpressionsaresimple.1019AC.ItswritingstyleishumorousD.Itstopicsarevaried.30.WhatmakesTheGivingTreepopular?A.Thecommentskidsgave.B.Thewritingstyle.C.Thepicturesinit.D.Thetruthitmirrors.31.Whatistheauthor'spurposeinwritingthetext?A.TocommentonabookB.Tointroduceawriter.C.Torecommendastory.D.Togivereadersalesson.DUptoonefifthoftheAmazonrainforestisemittingmorecarbondioxide(CO2),thanitabsorbs,newresearchsuggests.Resultsfromadecade-longstudyofgreenhousegasesovertheAmazonrainforestappeartoshowaround20%ofthetotalareahasbecomeanetsourceofCO2intheatmosphere.Oneofthemaincausesisdeforestation.Whiletreesaregrowing,theyabsorbCOfromtheatmosphere;deadtreesreleaseitagain.However,thefactisthatmillionsoftreeshavebeenlosttologgingandfiresinrecentyears.Theresultsofthestudy,whichhavenotyetbeenpublished,haveimplicationsfortheefforttocombatclimatechange.TheysuggestthattheAmazonrainforest,avitalcarbon"store",or"sink",thatslowsthepaceofglobalwarmingmaybeturningintoacarbonsourcefasterthanpreviouslythought.Everytwoweeksforthepast10years,ateamofscientistsledbyProfessorLucianaGatti,aresearcheratBrazil'sNationalInstituteforSpaceResearch(INPE),hasbeenmeasuringgreenhousegasesbyflyingaireraftfittedwithsensorsoverdifferentpartsofthe英语试题第7页（共12页）

1.2023年,中国全超导托卡马克核反应实验装置(EAST)创造新的世界纪录,成功实现稳态高约束模式等离子体运行403秒。核技术于现代社会的应用非常广泛,人类对于核反应的研究已经覆盖到电力、医疗、军事、工业等各个领域,下列核反应方程中括号内的粒子为α粒子的是A90^234Th91^234Pa+HeB.(He)+9225U56^144Ba+36^89Kr+30^1nC.410+7^14N8^17O+1^1HD.0^1n+()1^2H+y

8.如图所示,理想变压器原、副线圈匝数比为2:1,,定值电阻R1=100、R2=10,,滑动变阻器R3的最大阻值为40Ω,c、d为滑动变阻器的两个端点,两电表均为理想电表,a、b两端接入电压为a=1502100t(V))的交流电。初始时滑动变阻器的滑片P置于,下列说法正确的是A.电流表示数为1AB.电压表示数为75VC.滑片P由c向d缓慢滑动时,变压器的输出功率最大值为56.25wD.滑片P由c向d缓慢滑动时,电阻R1消托功率变小

(水水>乙5.质量相等的水、硫酸、酒精(p酸>>P),分别装在规格相同的A、B、C三个试管中,如图所示,则可判断出A.C中装的是硫酸B.A中装的是硫酸C.B中装的是酒精D.A中装的是水