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1、亿折网第Ⅰ卷(共60分)一、选择题:本大题共12个小题,每小题5分,共60分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.设全集U是实数集R,集合M={x|>2x},N={x|≤0},则(CUM)∩N=()A.{x|1<x<2}B.{x|1≤x≤2}C.{x|1<x<≤2}D.{x|1<x<2}2.对任意复数z=a+bi(a,b∈R),i为虚数单位,则下列结论中正确的是()A.z-=2aB.z·=|z|2C.=1D.≥03.双曲线的离心率为()A.B.C.D.ofwork,relationships,n
2、eedandpossibility,putqualityfirst."Improvestructure",referspartycarefully".IsamustadheretotheindividualabsorptionTheprincipleofthedevelopmentofamatureone,andstrictlyperformintheadmissionprocedure,topreventthePartymember一折网亿折网4.某学生在一门功课的22次考试中,所得分数如下茎叶图所示,则此学生该
3、门功课考试分数的极差与中位数之和为()5.在△ABC中,M是AB边所在直线上任意一点,若=-2+λ,则λ=()A.1B.2C.3D.46.公差不为0的等差数列{}的前21项的和等于前8项的和.若,则k=()A.20B.21C.22D.23考点:等差数列的性质.ofwork,relationships,needandpossibility,putqualityfirst."Improvestructure",referspartycarefully".Isamustadheretotheindividualabsor
4、ptionTheprincipleofthedevelopmentofamatureone,andstrictlyperformintheadmissionprocedure,topreventthePartymember一折网亿折网7.设函数f(x)=-lnx,则y=f(x)()A.在区间(,1),(1,e)内均有零点B.在区间(,1),(1,e)内均无零点C.在区间(,1)内有零点,在区间(1,e)内无零点D.在区间(,1)内无零点,在区间(1,e)内有零点8.某几何体的三视图如图所示,则该几何体的表面积为()
5、9.已知函数f(x)是定义在R上的增函数,则函数y=f(|x-1|)-1的图象可能是()ofwork,relationships,needandpossibility,putqualityfirst."Improvestructure",referspartycarefully".IsamustadheretotheindividualabsorptionTheprincipleofthedevelopmentofamatureone,andstrictlyperformintheadmissionprocedur
6、e,topreventthePartymember一折网亿折网10.在△ABC中,a,b,c分别是角A,B,C的对边,若=2014,则的值为()A.0B.1C.2013D.201411.若=+++…+(x∈R),则+++…+()A.-B.C.-D.,所以,所以+++…+ofwork,relationships,needandpossibility,putqualityfirst."Improvestructure",referspartycarefully".Isamustadheretotheindividual
7、absorptionTheprincipleofthedevelopmentofamatureone,andstrictlyperformintheadmissionprocedure,topreventthePartymember一折网亿折网12.四面体ABCD中,AD与BC互相垂直,AD=2BC=4,且AB+BD=AC+CD=2,则四面体ABCD的体积的最大值是()A.4B.2C.5D.第Ⅱ卷(共90分)二、填空题(每题4分,满分16分,将答案填在答题纸上)13.圆-2x+my-2=0关于抛物线=4y的准线对称
8、,则m=_____________.试题分析:易知,圆心坐标为,抛物线的准线方程为,依题意有,所以.考点:1.圆的性质;2.抛物线的性质.ofwork,relationships,needandpossibility,putqualityfirst."Improvestructure",referspartycarefully".Isamustadheret