高考数学模拟预测试题 文-人教版高三全册数学试题.doc

2015届蓟县二中高三数学（文）6月冲刺模拟试卷参考公式：数据x1,x2,…,xn的平均值SKIPIF1<0\*MERGEFORMAT，方差为：s2=SKIPIF1<0\*MERGEFORMAT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．已知全集U={1,2,3,4,5}，集合M＝{1,2,3}，N＝{3,4,5}，则M∩(SKIPIF1<0\*MERGEFORMATUN)＝()A.{1,2}B.｛4,5｝C.｛3｝D.｛1,2,3,4,5｝2.复数z=i2(1+i)的虚部为()A.1B.iC.-1D.-i3.如图是一个几何体的三视图，则该几何体的体积为()A.SKIPIF1<0\*MERGEFORMATB.SKIPIF1<0\*MERGEFORMATC.SKIPIF1<0\*MERGEFORMATD.SKIPIF1<0\*MERGEFORMAT4．在等比数列SKIPIF1<0\*MERGEFORMAT中，SKIPIF1<0\*MERGEFORMAT，SKIPIF1<0\*MERGEFORMAT，则SKIPIF1<0\*MERGEFORMAT的值为()A．–24B．24C．±24D．–125．在四边形ABCD中，“SKIPIF1<0\*MERGEFORMAT”是“四边形ABCD是梯形”的（）A．充要条件B.充分不必要条件C.必要不充分条件D.既不充分也不必要条件6.方程SKIPIF1<0\*MERGEFORMAT的解一定位于区间（）A．（1，2）B．（2，3）C．（3，4）D．（5，6）7．如图所示，墙上挂有一边长为SKIPIF1<0\*MERGEFORMAT的正方形木板，它的四个角的空白部分都是以正方形的顶点为圆心，半径为SKIPIF1<0\*MERGEFORMAT的圆弧，某人向此板投镖，假设每次都能击中木板，且击中木板上每个点的可能性都一样，则他击中阴影部分的概率是（）A．SKIPIF1<0\*MERGEFORMATB．SKIPIF1<0\*MERGEFORMATC．SKIPIF1<0\*MERGEFORMATD．与a的取值有关8.在三角形ABC中，SKIPIF1<0\*MERGEFORMAT的值为（）A．SKIPIF1<0\*MERGEFORMATB．SKIPIF1<0\*MERGEFORMATC．SKIPIF1<0\*MERGEFORMATD．SKIPIF1<0\*MERGEFORMAT9.设SKIPIF1<0\*MERGEFORMAT，若SKIPIF1<0\*MERGEFORMAT，则实数SKIPIF1<0\*MERGEFORMAT的取值范围是()A．SKIPIF1<0\*MERGEFORMATB.SKIPIF1<0\*MERGEFORMATC．SKIPIF1<0\*MERGEFORMATD.SKIPIF1<0\*MERGEFORMAT10．设SKIPIF1<0\*MERGEFORMAT表示平面，SKIPIF1<0\*MERGEFORMAT表示直线，给定下列四个命题：①SKIPIF1<0\*MERGEFORMAT②SKIPIF1<0\*MERGEFORMAT③SKIPIF1<0\*MERGEFORMAT④SKIPIF1<0\*MERGEFORMAT其中正确命题的个数有()A.1个B.2个C.3个D.4个11．SKIPIF1<0SKIPIF1<0SKIPIF1<06SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<05右图是某次歌唱比赛中，七位评委为某选手打出分数的茎叶统计图，去掉一个最高分和一个最低分后，所剩数据的平均数和方差分别为（）A.SKIPIF1<0\*MERGEFORMAT，SKIPIF1<0\*MERGEFORMATB.SKIPIF1<0\*MERGEFORMAT，SKIPIF1<0\*MERGEFORMATC.SKIPIF1<0\*MERGEFORMAT，SKIPIF1<0\*MERGEFORMATD.SKIPIF1<0\*MERGEFORMAT，SKIPIF1<0\*MERGEFORMAT12．设SKIPIF1<0\*MERGEFORMAT是函数SKIPIF1<0\*MERGEFORMAT的导函数，将SKIPIF1<0\*MERGEFORMAT和SKIPIF1<0\*MERG