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题号:1066374
题型:选择题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】正四棱柱
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image076.png)
的底面边长为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image077.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image078.png)
,点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image079.png)
是
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image039.png)
的中点,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
是平面
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image080.png)
内的一个动点,且满足
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image081.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
到
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image082.png)
和
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image056.png)
的距离相等,则点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
的轨迹的长度为
题号:1066375
题型:选择题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】已知点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
在抛物线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image069.png)
上,则点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
到直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image070.png)
的距离和到直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image071.png)
的距离之和的最小值为
题号:1066376
题型:选择题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】在直角梯形
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image055.png)
中,已知
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image039.png)
∥
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image056.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image057.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image058.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image059.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image060.png)
,若
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image062.png)
的中点,则
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image063.png)
的值为
题号:1066377
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
题号:1066378
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
题号:1066379
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
题号:1066380
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】右图给出的是计算
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image023.png)
的值的一个程序框图,其中判断框内应填入的条件是
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image024.png)
题号:1066381
题型:选择题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
题号:1066382
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】若集合
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image011.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image012.png)
,则“
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image013.png)
”是“
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image014.png)
”的
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
题号:1066383
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
题号:3828938
题型:选择题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】某小区有排成一排的
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image033.png)
个车位,现有
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image008.png)
辆不同型号的车需要停放,如果要求剩余的
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image009.png)
个车位连在一起,那么不同的停放方法的种数为
题号:3828939
题型:选择题
难易度:较易
日期:2012-09-03
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image090.png)
若方程
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image091.png)
有且只有两个不相等的实数根,则实数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image001.png)
的取值范围是
题号:1066370
题型:填空题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】如图,在边长为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image008.png)
的正方形
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image055.png)
中,点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image079.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image056.png)
上,正方形
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image055.png)
以
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image056.png)
为轴逆时针旋转
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image107.png)
角
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image108.png)
到
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image109.png)
的位置,同时点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image079.png)
沿着
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image056.png)
从点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image110.png)
运动点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image111.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image112.png)
,点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image113.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image114.png)
上,在运动过程中点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image113.png)
始终满足
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image115.png)
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image116.png)
,记点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image113.png)
在面
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image055.png)
上的射影为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image117.png)
,则在运动过程中向量
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image118.png)
与
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image119.png)
夹角
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image120.png)
的正切值
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image121.png)
的最大值为
.![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image122.jpg)
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image123.png)
题号:1066371
题型:填空题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】抛物线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image103.png)
的准线方程为 ;此抛物线的焦点是
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image104.png)
,则经过
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image104.png)
和点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image105.png)
,且与准线相切的圆共有
个.
题号:1066372
题型:填空题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】在如图所示的茎叶图中,乙组数据的中位数是
;若从甲、乙两组数据中分别去掉一个最大数和一个最小数后,两组数据的平均数中较大的一组是
组.
![](http://static.zujuan.xkw.com/Upload/2014-07/04/25338ff1-03e3-45aa-8864-c2ebe76573a1/paper.files/image001.png)
题号:1066373
题型:填空题
难易度:容易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
题号:1066364
题型:解答题
难易度:一般
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】选修4—5;不等式选讲
已知a和b是任意非零实数.
(1)求
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image365.png)
的最小值.
(2)若不等式
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image366.png)
恒成立,求实数x的取值范围.
题号:1066365
题型:解答题
难易度:一般
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】已知椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image280.png)
:
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image281.png)
的左、右顶点分别为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image282.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image283.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image284.png)
为短轴的端点,△
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image285.png)
的面积为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image031.png)
,离心率是
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image286.png)
.
(Ⅰ)求椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image280.png)
的方程;
(Ⅱ)若点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
是椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image280.png)
上异于
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image282.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image283.png)
的任意一点,直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image186.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image287.png)
与直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image288.png)
分别交于
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image079.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image289.png)
两点,证明:以
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image290.png)
为直径的圆与直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image291.png)
相切于点
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image292.png)
(
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image292.png)
为椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image280.png)
的右焦点).
题号:1066366
题型:解答题
难易度:一般
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image240.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image241.png)
处的切线斜率为零.
(Ⅰ)求
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image242.png)
和
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image243.png)
的值;
(Ⅱ)求证:在定义域内
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image244.png)
恒成立;
(Ⅲ) 若函数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image245.png)
有最小值
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image246.png)
,且
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image247.png)
,求实数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image001.png)
的取值范围.
题号:1066367
题型:解答题
难易度:一般
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】如图1,在边长为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image008.png)
的正三角形
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image176.png)
中,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image177.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image104.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image061.png)
分别为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image178.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image179.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image039.png)
上的点,且满足
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image180.png)
.将△
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image181.png)
沿
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image182.png)
折起到△
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image183.png)
的位置,使二面角
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image184.png)
成直二面角,连结
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image185.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image186.png)
.(如图2)
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image188.png)
(Ⅰ)求证:
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image189.png)
⊥平面
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image190.png)
;
(Ⅱ)求直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image189.png)
与平面
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image191.png)
所成角的大小.
题号:1066368
题型:解答题
难易度:一般
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】某工厂生产甲、乙两种产品,甲产品的一等品率为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image154.png)
,二等品率为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image155.png)
;乙产品的一等品率为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image156.png)
,二等品率为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image157.png)
.生产
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image006.png)
件甲产品,若是一等品,则获利
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image009.png)
万元,若是二等品,则亏损
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image006.png)
万元;生产
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image006.png)
件乙产品,若是一等品,则获利
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image158.png)
万元,若是二等品,则亏损
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image007.png)
万
元.两种产品生产的质量相互独立.
(Ⅰ)设生产
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image006.png)
件甲产品和
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image006.png)
件乙产品可获得的总利润为
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image159.png)
(单位:万元),求
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image159.png)
的分布列;
(Ⅱ)求生产
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image009.png)
件甲产品所获得的利润不少于
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image160.png)
万元的概率.
题号:1066369
题型:解答题
难易度:一般
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】 已知函数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image127.png)
.
(Ⅰ)求
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image128.png)
的最小正周期;
(Ⅱ)若函数
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image129.png)
的图象是由
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image130.png)
的图象向右平移
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image131.png)
个单位长度,再向上平移1个单位长度得到的,当
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image132.png)
[
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image133.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image134.png)
]时,求
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image129.png)
的最大值和最小值.
题号:3828940
题型:解答题
难易度:较易
日期:2012-08-08
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】选修4-1:几何证明选讲
在
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image035.png)
中,AB=AC,过点A的直线与其外接圆交于点P,交BC延长线于点D.
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image333.png)
(1)求证:
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image334.png)
;
(2)若AC=3,求
![](http://static.zujuan.xkw.com/Upload/2012-08/08/6641218c-1aec-47f3-a77f-ddce87bc40b4/paper.files/image335.png)
的值.
题号:3828941
题型:解答题
难易度:一般
日期:2012-09-07
来源:2012届河北省唐山一中高三第一次高考仿真测试理科数学试卷(带解析)
【题文】选修4—4;坐标系与参数方程
在平面直角坐标系xOy中,已知曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image001.png)
,以平面直角坐标系xOy的原点O为极点,x轴的正半轴为极轴,取相同的单位长度建立极坐标系,已知直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image002.png)
.
(1)将曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image003.png)
上的所有点的横坐标、纵坐标分别伸长为原来的
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image004.png)
、2倍后得到曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image005.png)
试写出直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image006.png)
的直角坐标方程和曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image005.png)
的参数方程;
(2)在曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image005.png)
上求一点P,使点P到直线
![](http://static.zujuan.xkw.com/Upload/2012-08/08/ad28c7f2-ff87-4e4a-96e6-1d272aecce00/paper.files/image006.png)
的距离最大,并求出此最大值.