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北京师大附中2018-2019学年上学期高二年级期末考试数学试卷(AP)本试卷有两大部分,考试时长120分钟,满分100分。第一部分:学考数学(76分)一、选择题:本大题共15小题,每小题3分,共45分。1.已知集合}21{,M,集合}3,1,0{N,则NMA.},,{321B.{1,2}C.{0,1}D.{1}2.已知函数211)(xxxf,则)(xf的定义域是A.)2,1[B.),1[C.),2(D.),2()2,1[3.函数2xy,3xy,xy)21(,xylg中,在区间(0,)上为减函数的是A.2xyB.3xyC.xy)21(D.xylg4.如下图,给出了奇函数)(xf的局部图象,那么f(1)等于A.-4B.-2C.2D.45.已知二次函数)3(2mmxxy有两个不同的零点,则m的取值范围是A.[-2,6]B.(-2,6)C.),6()2,(D.}6,2{6.8log2log44等于A.-2B.-1C.1D.27.函数5)(3xxf的零点所在的区间是A.(1,2)B.(2,3)C.(3,4)D.(4,5)8.角的终边经过点P(4,y),且53sin,则tanA.-4/3B.4/3C.-3/4D.3/49.在ABC中,角A,B,C所对的边分别为a,b,c,如果a=3,2b,22c,那么ABC的最大内角的余弦值为A.1/8B.1/4C.3/8D.1/210.把函数xysin的图象向右平移4个单位得到)(xgy的图象,再把)(xgy图象上所有点的纵坐标伸长到原来的2倍(横坐标不变),所得到图象的解析式为A.)4sin(2xyB.)4sin(2xyC.)4sin(21xyD.)4sin(21xy11.已知直线m,n,l,平面,,,给出下面四个命题:①//②//////③nmnlml//④//////nnmm其中正确的命题是A.①B.②C.③D.④12.某几何体的三视图如下图所示,那么该几何体的体积是A.32B.35C.38D.213.已知直线l经过点O(0,0),且与直线03yx垂直,那么直线l的方程是A.03yxB.03yxC.0yxD.0yx14.某市共有初中学生270000人,其中初一年级,初二年级,初三年级学生人数分别为99000,90000,81000,为了解该市学生参加“开放性科学实验活动”的意向,现采用分层抽样的方法从中抽取一个容量为3000的样本,那么应该抽取初三年级的人数为A.800B.900C.1000D.110015.口袋中装有大小、材质都相同的6个小球,其中有3个红球、2个黄球和1个白球,从中随机摸出1个球,那么摸到红球或白球的概率是A.61B.31C.21D.32二、填空题:本大题共5小题,每小题3分,共15分16.已知圆M的方程是016622yxx,则该圆的半径是___________。17.已知21cos,那么)2cos(a等于________。18.如果正方形ABCD的边长为1,那么ABAC等于______________19.函数122xxy在区间]1,1[上的最小值为_________。20.已知200辆汽车通过某一段公路时的时速的频率分布直方图如下图所示,则a=________三、解答题:共2道大题,每大题8分,共16分,请写出解题步骤。21.已知函数xxxf2cos2sin3)(,Rx(I)求f(x)的最小正周期和振幅。(II)求)(xf的单调递减区间。22.如下图,在三棱锥P-ABC中,PA底面ABC,BCAB,D,E分别为PB,PC的中点。(I)求证:BC//平面ADE;(II)求证:PABBC平面第二部分:SAT数学(共24分)(选择题,共8小题,每小题3分)1.16)5()6(22yxInthexy-plane,thegraphoftheequationaboveisacircle.PointPisonthecircleandhascoordinates(10,-5).IfPQisadiameterofthecircle,whatarethecoordinatesofpointQ?A.(2,-5)B.(6,-1)C.(6,-5)D.(6,-9)2.Whichofthefollowingcouldbetheequationofthegraphabove?A.)3)(2(xxxyB.)3)(2(2xxxyC.)3)(2(xxxyD.)3)(2(2xxxy3.Thetableaboveshowsthedistributionofagesofthe20studentsenrolledinacollegeclass.Whichofthefollowinggivesthecorrectorderofthemean,median,andmodeoftheages?A.modemedianmeanB.modemeanmedianC.medianmodemeanD.meanmodemedian4.Whichofthefollowingexpressionsisequivalentto3522xxx?A.3205xxB.3105xxC.381xxD.321xx5.Onemethodofcalculatingtheapproximateage,inyears,ofatreeofaparticularspeciesistomultiplythediameterofthetree,ininches,byaconstantcalledthegrowthfactorforthatspecies.Thetableabovegivesthegrowthfactorsforeightspeciesoftrees.Ifawhitebirchtreeandapinoaktreeeachnowhaveadiameterof1foot,whichofthefollowingwillbeclosesttothedifference,ininches,oftheirdiameters10yearsfromnow?(1foot=12inches)A.1.0B.1.2C.1.3D.1.46.xxxxf462)(2323)(2xxxgThepolynomialsf(x)andg(x)aredefinedabove.Whichofthefollowingpolynomialsisdivisibleby2x+3?A.)()()(xgxfxhB.)(3)()(xgxfxpC.)(3)(2)(xgxfxrD.)(2)(3)(xgxfxs7.Todetermineifgenderandnumberofsiblingsarerelatedtowhether9-year-oldchildrenliketoread.Sarahselectedarandomsampleof40boyswithfewerthan3siblingsandarandomsampleof30girlswith3ormoresiblingsfromthe9-year-oldchildreninhercity.Foreachchild,sherecordedthechild’sage,gender,andwhetherthechildreportedlikingtoread.WhyisitinappropriateforSarahtodrawaconclusionfromherstudy?A.Thetwosamplesarenotofequalsize.B.Thetwosamplesshouldhavebeenchosenfromdifferentcities.C.Thereisnoupperhoundonthenumberofsiblingsofthe30girls.D.Sarahwillnotbeabletotellwhetheradifferenceinlikingtoreadisrelatedtothedifferenceingenderortothedifferenceinnumberofsiblings.8.Startingin1970,thepopulationofacitydoubledevery10yearsuntil2010.Thepopulationofthecitywas36,000in1970.Whichofthefollowingexpressionsgivesthepopulationofthecityin2010?A.36,000(2)4B.36,000(2)10C.36,000(2)40D.36,000(2)(40)【试题答案】一、选择题:本大题共15小题,每小题3分,共45分。1.D2.D3.C4.B5.C6.B7.A8.C9.A10.A11.B12.A13.C14.B15.D二、填空题:本大题共5小题,每小题3分,共15分16.517.2118.119.-220.0.04三、解答题:共2道大题,每大题8分,共16分,请写出解题步骤。21.(8分)(I)(4分))6sin2cos6cos2(sin2)2cos212sin23(2)(xxxxxf)62sin(2x(2分)最小正周期(1分)振幅=2(1分)(II)(4分)由)(xf递减可得:3262326222kxkkxk(2分)单调递减区间:kk32,6,Zk(2分)22.(8分)(I)(4分)在PBC中,D、E分别为PB、PC的中点,BCDE//BC平面ADE,DE平面ADE,//BC平面ADE。(II)(4分)PA平面ABC,BC平面ABC,BCPA,BCAB,AABPA,BC平面PAB第二部分:SAT数学(共24分)(选择题,共8小题,每小题3分)1.A2.B3.A4.D5.C6.B7.D8.A
本文标题:北京师大附中20182019学年上学期高二年级期末考试数学试卷
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