[今日更新]陕西省西安市碑林区2023-2024学年度上学期高二期末考试.物理试卷答案

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[今日更新]陕西省西安市碑林区2023-2024学年度上学期高二期末考试.物理试卷答案试卷答案

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So,ifyou'reconvincedthatthisisforyou,takeadvice:approachitwithcaution,swimwithafriend,andmaybestartinthesummer,whenthewatertemperaturesarehigher.A.Cold-waterswimmingcansubstituteformedicine.B.However,manyparticipantssaytheygetusedtoit.C.Ifyoudon'tmindgettingwet,itcanbefuntoo.D.It'salsothoughttostrengthenourdigestivefunction.E.Weallknowexercisecanextendpeople'slifespan.F.Forexample,ithelpsreducethestressofexercisingathighaltitudes.G.Cold-waterswimmingcanfunctionasadoseofmedicine.【语篇导读】本文是一篇说明文

文章主要介绍了冷水游泳的诸多好处，比如强身健体、提升幸福感、缓解压力、锻炼意志力等

5.C根据上下文可知，设空处应是承上启下的句子，继续补充说明游泳带来的好处，尤其是精神层面的

结合选项可知，C项切题

6B根据上下文可推知，设空处与上文构成转折，表明冷水游泳虽冷，但许多参与者都已经习惯了冷水游泳，承接下文讲冷水游泳的好处，结合选项可知，B项切题

7G设空处位于本段段首，应为本段的主题句

根据下文可知，本段主要说明冷水游泳可以治愈某些健康问题

故G项能够概括本段的主要内容，切题

8.D根据设空处上文Doctorssaygettingintocoldwatermakesastressresponse,butthemoreyoudoit,yourreactiontostressisreduced..以及下文Inaddition,cold-waterswimmingcanexerciseswimmers'willpower.可知，设空处应是继续介绍冷水游泳的其他好处，D项切题

9.F根据上文Someexpertsbelievecold--waterswimminghelps“cross-adaptation'”,whereoneformofstresspreparesthebodyforanother.可知，这个表述显然有些抽象，F项正好对此进行举例说明，切题

三、完形填空（共20小题；每小题2分，满分40分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项

Youarewhatyoueat,somaybeit'stimethatyoustartedeatingwisely.ExpertsatthefirstChineseStudentsNutritionandHealthFestivalinKunmingdidasurveylastweek10youngpeople'sbadeatinghabit:watchingtelevision11havingmealsorsnacks.Doingthismeansyoudon'tpay12toyourfood,forgethowfullyouare,andsoovereat.Itcanalso13digestiondiseases.Onewayto14thisisonlytoeatincertainareasofyourhome.Itisnotgoodtohavesnacksinsteadof15.Manystudentsthinkthateatingsmallsnackscanhelp16.Butitoftenresultsinovereatingandhealthproblemsrelated17ashortageofvegetables,carbohydrates(a碳水化合物)andvitamins.Snackingonlyworks18itiswellplannedandifit19healthyfoodssuchasnuts,vegetables.20ratherthanwaterisverybad,too.Gaswhichcancause21problems.Waterisimportantinmakingyourbraincellsandevery22inyourbodyworkproperly.Foryourbodyto23fat,itneedsatleasteightglassesof24wateraday.Liquidslikesodaandcoffeeactuallywill25waterfromyourbody.Refusingtodrinkmilkisanotherunhealthyhabit.Milkisthebestnaturalfood-it26youwithprotein,whichmakesyourbonesstrongandteethhealthy.Choosingmeatandcertainvegetablesoverothers.Differentfoodsprovidedifferentkindsof27.Ifyoudon'thaveabalanceddiet,thiscanresultinaweakerbody.Childrenlovebright-coloredfoods.Somefoodmanufacturers(制造厂，生产商)addextrapigments(色素)to28kids,Buttheseareinfact29.Eatingthroatpillsasiftheyweresweetsisanunhealthyeatinghabit,too.10.A.findingoutB.foundoutC.findingD.found11.A.butB.whileC.orD.and12.A.moneyB.billsC.attentionD.back13.A.causeB.affectC.produceD.make14.A.keepB.causeC.avoidD.get15.A.vegetablesB.mealsC.foodD.fruit16.A.readB.thinkC.studyD.diet·42·

初度向端的一条直径,现将小球从B点正上方R处的A点以初速度v沿水平方向物出,球球落到圆环上的D点,,∠BOD=37°。第二次由AB连线上的某点水平抛出,绕BOD=37^。∠Bsin6.g,37^=0.6,37^球的运动轨迹与圆环相切于D点。已知重力加速度为g,sin37°=0.6,cos370.8,忽略空气阻力,所有轨迹与圆环都在同一竖直平面内,则下列说法正确的是A.小球从A点抛出到落在圆环上的时间为14R5gB.小球从A点平抛的初速度为920gRC.小球两次平抛的初速度相等D.小球第二次抛出时距D点的高度为940R

待测电源(电动势约1.5V,内阻小于.1Ω),,定值电阻(阻值开关S,导线若干A.电压表,内阻约(0∼2V,.1Ω)(0∼10V,20kΩB.电压表,内阻约10kΩ),内阻约D.电流表(0-3A,内阻约C.电流表(0∼0.6A,F.滑动变阻器(20Ω,2A)E.滑动变阻器(500Ω,1A)

6.在空间技术发展过程中,喷气背包曾经是宇航员舱外活动的主要动力装置,它能让宇航员保持较高的机动性。如图所示,宇航员在距离空间站舱门为d的位置与空间站保持相对静止,v1速度为vi。若宇航员连同整套舱外太空服的质量为M,不计喷出气体后宇航员和装备质量启动喷气背包,压缩气体通过横截面积为S的喷口以速度v;持续喷出,宇航员到达舱门时的v2。的变化,忽略宇航员的速度对喷气速度的影响以及喷气过程中压缩气体密度的变化,则喷出压缩气体的密度为A.2Mv1^2Sd222B.Mv1^22Sdv2^2C.2Mv2^2Sdv1^2D.Mv2^22Sdv1^2