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1、2015年东北三省四市教研联合体高考模拟试卷(一)数 学(理 科 类)一、选择题(本大题共12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、设集合,则( )a b c d2、复数(为虚数单位)在复平面上对应的点位于( )a第一象限 b第二象限 c第三象限 d第四象限3、下列四个命题中真命题的个数是( )“”是“”的充分不必要条件命题“,”的否定是“,”“若,则”的逆命题为真命题命题,命题,则为真命题a b c d4、执行如图所示的程序框图,则输出的结果为( )a bc d5、将函数的图象向右平移个单位后得到函数,则具有性质( )a最大值为,图象关于直线对称
2、b在上单调递增,为奇函数c在上单调递增,为偶函数 d周期为,图象关于点对称6、等比数列中,则数列的前项和等于( )a b c d7、某由圆柱切割获得的几何体的三视图如图所示,其中俯视图是圆心角为的扇形,则该几何体的侧面积为( )a bc d8、已知抛物线()与椭圆()有相同的焦点,点是两曲线的一个公共点,且轴,则椭圆的离心率为( )a b c d9、已知,平面,若,则四面体的外接球(顶点都在球面上)的表面积为( )a b c d10、在如图所示的坐标平面的可行域内(阴影部分且包括边界),若目标函数取得最小值的最优解有无数个,则的最大值是( )a bc d11、若是的重心,分别是角,的对边,若,
3、则角( )a b c d12、已知数列中,则( )a b c d二、填空题(本大题共4小题,每小题5分,共20分)13、设随机变量服从正态分布,若,则 14、设,则的展开式中常数项为 15、在直角梯形中,梯形所在平面内一点满足,则 16、已知函数,则满足的实数的取值范围为 三、解答题(本大题共6小题,共70分解答应写出文字说明、证明过程或演算步骤)17、(本小题满分12分)的内角,的对边分别为,求角;若,求的面积18、(本小题满分12分)2014年7月16日,中国互联网络信息中心发布第三十四次中国互联网发展状况报告,报告显示:我国网络购物用户已达亿为了了解网购者一次性购物金额情况,某统计部门随
4、机抽查了6月1日这一天100名网购者的网购情况,得到如下数据统计表已知网购金额在2000元以上(不含2000元)的频率为确定,的值,并补全频率分布直方图;为进一步了解网购金额的多少是否与网龄有关,对这100名网购者调查显示:购物金额在2000元以上的网购者中网龄3年以上的有35人,购物金额在2000元以下(含2000元)的网购者中网龄不足3年的有20人请将列联表补充完整;网龄3年以上网龄不足3年合计购物金额在2000元以上35购物金额在2000元以下20合计100并据此列联表判断,是否有%的把握认为网购金额超过2000元与网龄在三年以上有关?参考数据:(参考公式:,其中)19、(本小题满分12
5、分)已知四棱锥,侧面底面,侧面为等边三角形,底面为菱形,且求证:;求平面与平面所成的角(锐角)的余弦值20、(本小题满分12分)设抛物线的顶点在坐标原点,焦点在轴正半轴上,过点的直线交抛物线于,两点,线段的长是,的中点到轴的距离是求抛物线的标准方程;在抛物线上是否存在不与原点重合的点,使得过点的直线交抛物线于另一点,满足,且直线与抛物线在点处的切线垂直?并请说明理由21、(本小题满分12分)已知函数()讨论的单调性;若对任意恒成立,求实数的取值范围(为自然常数);求证(,)请考生在第22、23、24三题中任选一题作答,如果多做,则按所做的第一题计分22、(本小题满分10分)选修4-1:几何证明
6、选讲如图,为上的三个点,是的平分线,交于点,过作的切线交的延长线于点证明:平分;证明:23、(本小题满分10分)选修4-4:坐标系与参数方程已知在直角坐标系中,圆锥曲线的参数方程为(为参数),定点,、是圆锥曲线的左、右焦点以坐标原点为极点,轴正半轴为极轴建立极坐标系,求经过点且平行于直线的直线的极坐标方程;设中直线与圆锥曲线交于,两点,求24、(本小题满分10分)选修4-5:不等式选讲设函数,当时,解不等式;画出函数的图象,根据图象求使恒成立的实数的取值范围2015年数学科模拟试题答案(理科)123456789101112dadbbdcbcad c 13. 2 14. 15. -1 16. 1
7、7.(1)解:2分4分(2)6分8分10分0.511.522.530.20.10.30.40.50.6(千元)12分18.答案:因为网购金额在2000元以上的频率为,所以网购金额在2000元以上的人数为100=40所以,所以,1分,2分所以4分所以频率分布直方图如右图5分由题设列联表如下网龄3年以上网龄不足3年合计购物金额在2000元以上35540购物金额在2000元以下402060合计75251007分所以=9分因为10分所以据此列联表判断,有%的把握认为网购金额超过2000元与网龄在三年以上有关.12分19.证明:(1)取中点,连结. 侧面为等边三角形,底面为菱形且2分4分5分(2)侧面底
8、面,侧面底面=, 7分以为坐标原点,方向为轴,方向为轴,方向为轴建立空间直角坐标系,设点坐标为则8分设面的法向量为,则,令,解得9分设面的法向量为,同理解得10分面与面所成的角(锐角)的余弦值为12分20.解:(1)设抛物线的方程是,,由抛物线定义可知2分又中点到轴的距离为3,p2,所以抛物线的标准方程是.4分 (2)设,则在处的切线方程是,直线代入得,6分故,所以8分而10分,得,所以,存在点.12分(说明:没求出,但说明关于的方程有解,也给分。例如令,所以有解)21解:(1) , 当时,的单调增区间为,单调减区间为;3分 当时,的单调增区间为,单调减区间为;4分(2)令 若, 是增函数,
9、无解. 5分若,,,是减函数;, 是增函数 , . 6分 若, 是减函数,,7分综上所述8分(3)令(或)此时,所以,由()知在上单调递增,当时,即,对一切成立,9分,则有,10分 要证只需证11分所以原不等式成立12分22.因为是的切线,所以2分又因为4分所以,即平分.5分由可知,且,所以,7分又因为,所以8分所以,9分所以10分23.解:(1)圆锥曲线的参数方程为(为参数),所以普通方程为: 2分 3分直线极坐标方程为:5分(2)直线的参数方程是(为参数),7分代入椭圆方程得8分9分10分24.解:,2分(1),或或,4分不等式的解集为5分(2)图象8分所以10分9jwkffwvg#tym
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33、amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89
34、amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa
35、5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz84!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv
36、*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u
37、*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpaz
38、adnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnugk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qyp
39、eh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tng
40、k8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!
41、z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#q
42、cue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcv
43、r9cpbk!zn%mzadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcadnu#kn&muwfa
44、5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#
45、&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazad
46、nu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazad
47、nu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz84!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x
48、4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3t
49、ngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnugk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wew
50、z#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn
51、&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqvue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*
52、3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp
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