[今日更新]昆明第一中学2024届高中新课标高三第七次高考仿真模拟.物理试卷答案

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[今日更新]昆明第一中学2024届高中新课标高三第七次高考仿真模拟.物理试卷答案试卷答案

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therwisegotosteanddistrbuingpofainghunger.Weworkwithmanufactuersretailers,andfamerstoreduceoodwasteandgetrescudfopeopeed.Weidentfyfoodatriskofgoingaste,offrreseuedfodofodbanks,safeyshipfoodoverlongdistancesandkeepfoodfreshlongeronceitreachesafoodbank.28.WhatdoweknowaboutthefoodinAmerica?A.Itisbarelyenough.B.Itisquiteabundant.C.Itiseasilyavailable.D.Itisincreasinglyinsufficient.29.Whatdoestheunderlinedphrase"equatesto"inparagraph3mean?A.Consumes.B.Multiplies.C.Wastes.D.Equals.30.HowdoestheauthorrevealthefoodwasteinAmerica?A.Bymakingcomparisons.B.Bypresentingdata.C.Bylistingreasons.D.Byofferingexamples.31.WhatdoesFeedingAmericaactuallydo?A.Itteachespeoplehowtogrowfood.B.Iturgesgovernmenttotakeaction.C.Itsavesfoodfrombeingwasted.D.Itaimstorelieveworldhunger.OneofthemostcommonbeliefsamongresearchersisthathumansfirstarrivedinNorthAmerica16,000yearsago.Accordingtoarecentfossildiscovery,thatmightnotbetrue.ThenewfindingsuggeststhathumansmighthavearrivedinNorthAmericafarearlier.In2ol3,adamagedmammoth(猛犸象)skullandotherbonesthatlooked“deliberatelybroken"werefound.Thedamagetothebonessuggestedthathumansweretheoneswhocausedittomaketools.Carbon-datinganalysissuggestedthepiecesareroughly37,000yearsold.Thisdiscoverycouldshiftourunderstandingofhumans'earliestexistenceinNorthAmerica.Thesefossilssuggesthumanskilledanimalsintheareamuchearlierthan16,000yearsago.PreviousresearchledscientiststobelievethefirsthumansthatsettledinNorthAmericabelongedtotheClovisculture.Thiswasagroupofpeoplewholeftbehindcarefullymadetools16000yearsago.However,carbon-datinganalysisofthemammothbonesindicatesthatthesiteisaround36,250to38,900yearsold.Thatmeansit'stheoldestknownsiteleftbe-hindbyancienthumansinNorthAmerica."That'snottheonlyinterestingthingaboutthediscovery,"saidTimothyRowe,apro-fessorattheUniversityofTexas."Thesimilarfindingssupportinganearlierdateforhumanrivahavebeenmostlyignored.Thisisbecausetheyhavecontradictedpreviousresearch.Now,however,hethinksthere'sagoodchancethatresearcherswillfindevidenceofhumansfartherbackintime.Theumshapedbonesnsharpblades,whichweresdotakernmremns,Rowe.Thereareasosignsthattheycookedtheanimalboesvea【高三英语第6页（共10页）】·23-144C·

5如图所示,某小型发电机的转子是匝数为100匝、面积为400cm^2的矩形线圈,线圈在磁感应强度大小为1T的匀强磁场中,绕着垂直磁场方向的轴以100π(rad/s)的角速度匀速转动,线圈的阻值为5Ω,外电路接阻值为95Ω的定值电阻R和理想交流电流表A,导线的电阻不计,若取^2=10,则外电路中定值电阻R上消耗的功率为DRAA.15.8kWB.15.2.kWC.7.9kWD.7.6kW

12.如图所示是某地区使用的“风光互补”景观照明灯,它“头顶”小风扇,“肩扛”光电池板,“腰挎”照明灯,“脚踩”蓄电池。下列解释合理的是CA.蓄电池白天充电时,蓄电池将电能转化为化学能B利用风力发电时,将电能转化为机械能C.光电池板工作时,是将太阳能转化为化学能10a6A61D.照明灯工作时,是将内能转化为电能25/6

2.国产新型磁悬浮列车甲、乙(都可视为质点)分别处于两条平行轨道上开始时(t=0),乙车在前,甲车在后,两车间距为x0,t=0时甲车先启动,t1=3s时乙车再启动,两车启动都是先做匀加速直线运动,后做匀速运动,两车运动的v-t图像如图1所示。下列说法正确的是(A.两车加速过程中,甲车的加速度比乙车大×B.由运动的v-t图像可知,无论X0取何值,甲、乙两车7s末一定相遇C.若x0=130m,,则两车间的距离最小为330mD.从甲车运动开始计时到7s末,甲车的平均速度小于乙车的平均速度t/s图1