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题号:1067375
题型:选择题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】. 设函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image080.png)
,若当
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image081.png)
时,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image082.png)
恒成立,
则实数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image083.png)
的取值范围是( )
A.(-3,+ ) | B.(-1,+ ) |
C.(- ,-3) | D.(- ,-1) |
题号:1067376
题型:选择题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 已知
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image071.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image072.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image064.png)
在△
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image073.png)
所在的平面内,且
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image074.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image075.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image076.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image071.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image072.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image064.png)
依次是△
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image073.png)
的
A.重心,外心,垂心 | B.重心,外心,内心 |
C.外心,重心,垂心 | D.外心,重心,内心 |
题号:1067377
题型:选择题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 若
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image040.png)
=1+2+…+
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image050.png)
,令数列
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image051.png)
的前
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image050.png)
项和为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image052.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image053.png)
=( )
题号:1067378
题型:选择题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 从长度为2,3,4,5的四条线段中任意取出三条,则以这三条线段为边可以构成三角形的
概率是
题号:1067379
题型:选择题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 已知等比数列
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image035.png)
的前6项和为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image036.png)
=21,且4
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image037.png)
,2
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image038.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image039.png)
成等差数列,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image040.png)
等于( )
题号:1067380
题型:选择题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】设集合A={
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image026.png)
|
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image027.png)
},B={
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image028.png)
|
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image029.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image030.png)
},则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image031.png)
∩
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image032.png)
=( )
题号:1067381
题型:选择题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】一个几何体的三视图如图所示,则这个几何体的表面积是( )
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image020.jpg)
题号:1067382
题型:选择题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 执行如图所示的程序框图,则输出的结果是( )
![](http://static.zujuan.xkw.com/Upload/2012-10/22/a7d88b75-1b20-4e30-a347-ad8ee6af0d85/paper.files/image001.png)
题号:1067383
题型:选择题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 若抛物线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image015.png)
的焦点与椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image016.png)
的右焦点重合,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image017.png)
的值为( )
题号:1067384
题型:选择题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 已知
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image007.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image008.png)
等于( )
题号:1067385
题型:选择题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 若复数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image001.png)
是纯虚数(
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image002.png)
是实数,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image003.png)
是虚数单位),则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image002.png)
=( )
A.-2 | B.![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image004.png) | C.![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image005.png) | D.2 |
题号:3810158
题型:选择题
难易度:较易
日期:2013-01-05
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 已知
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image060.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image061.png)
分别是双曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image062.png)
=1的左右焦点,若以坐标原点O为圆心,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image063.png)
为半径
的圆与双曲线在第一象限有一个交点为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image064.png)
,则当△
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image065.png)
的面积等于
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image066.png)
时,双曲线的离心
率为( )
题号:1067373
题型:填空题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 下列命题中:
①若角
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image100.png)
满足条件
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image101.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image102.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image100.png)
是第三象限角
②已知
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image103.png)
是锐角,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image104.png)
能取的值
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image105.png)
③函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image106.png)
的一个对称中心点是(
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image107.png)
,0)
④要得到
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image108.png)
的图象,只需将
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image109.png)
的图象向左平移
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image110.png)
个单位
⑤对于函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image111.png)
(A,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image112.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image113.png)
均为不等于0的常数),在[0,2
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image114.png)
]上至少存在一个
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image115.png)
,使
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image116.png)
以上命题中正确的序号为___________.
题号:1067374
题型:填空题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 已知向量
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image093.png)
=(-1,2),
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image094.png)
=(3,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image083.png)
),若
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image093.png)
⊥
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image095.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image083.png)
=___________.
题号:3810159
题型:填空题
难易度:容易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image026.png)
和
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image028.png)
满足约束条件
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image091.png)
,则目标函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image092.png)
的最小值是___________.
题号:3810160
题型:填空题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 一个球与一个正三棱柱的三个侧面和两个底面都相切,已知这个球的体积是
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image097.png)
,那么这
个三棱柱的体积是____________.
题号:1067348
题型:解答题
难易度:较易
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本小题满分10分)选修4—5:不等式选讲
设函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image302.png)
=
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image303.png)
+ 1.
(Ⅰ)画出函数y=
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image302.png)
的图像:
(Ⅱ)若不等式
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image302.png)
≤ax的解集非空,求n的取值范围
题号:1067349
题型:解答题
难易度:一般
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本题满分12分)
已知函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image194.png)
,
(Ⅰ)当
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image195.png)
时,求函数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image196.png)
的单调递增区间;
(Ⅱ)在区间
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image197.png)
内至少存在一个实数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image198.png)
,使得
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image199.png)
成立,求实数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image200.png)
的取值范围.
题号:1067350
题型:解答题
难易度:一般
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】 (本题满分12分)
设椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image152.png)
:
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image153.png)
的离心率为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image154.png)
,点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image155.png)
(
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image156.png)
,0),
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image032.png)
(0,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image157.png)
)原点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image071.png)
到直线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image158.png)
的距离为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image159.png)
(Ⅰ)求椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image152.png)
的方程;
(Ⅱ)设点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image160.png)
为(
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image161.png)
,0),点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image064.png)
在椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image152.png)
上(与
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image155.png)
、
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image160.png)
均不重合),点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image162.png)
在直线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image163.png)
上,若直线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image164.png)
的方程为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image165.png)
,且
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image166.png)
,试求直线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image167.png)
的方程.
题号:1067351
题型:解答题
难易度:一般
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本小题满分12分)
在四棱锥
P-
ABCD中,∠
ABC=∠
ACD=90°,∠
BAC=∠
CAD=60°,
PA⊥平面
ABCD,
E为
PD的中点,
PA=2
AB=2.
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image144.png)
(Ⅰ)求四棱锥
P-
ABCD的体积
V;
(Ⅱ)若
F为
PC的中点,求证
PC⊥平面
AEF;
题号:1067372
题型:解答题
难易度:一般
日期:2012-08-03
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本小题满分12分)
有两枚大小相同、质地均匀的正四面体玩具,每个玩具的各个面上分别写着数字1,2,3,5.同时投掷这两枚玩具一次,记
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image083.png)
为两个朝下的面上的数字之和.
(Ⅰ)求事件“
m不小于6”的概率;
(Ⅱ)“
m为奇数”的概率和“
m为偶数”的概率是不是相等?证明你作出的结论.
题号:3810161
题型:解答题
难易度:一般
日期:2012-09-08
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本小题满分12分)
已知等比数列
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image123.png)
中,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image124.png)
,公比
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image125.png)
.
(I)
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image126.png)
为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image123.png)
的前
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image050.png)
项和,证明:
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image127.png)
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image128.png)
(II)设
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image129.png)
,求数列
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image130.png)
的通项公式.
题号:3810162
题型:解答题
难易度:较易
日期:2012-08-15
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本小题满分10分)选修4—1;几何证明选讲.
如图,
A,
B,
C,
D四点在同一圆上,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image246.png)
与
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image247.png)
的延长线交于点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image162.png)
,点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image248.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image249.png)
的延长线上.
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image250.png)
(Ⅰ)若
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image251.png)
,求
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image252.png)
的值;
(Ⅱ)若
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image253.png)
,证明:
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image254.png)
.
题号:3810163
题型:解答题
难易度:一般
日期:2012-08-15
来源:2012届河北省涿鹿中学高考预测试文科数学试卷(带解析)
【题文】(本小题满分10分)选修4—4;坐标系与参数方程.
在平面直角坐标系
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image269.png)
中,曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image270.png)
的参数方程为
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image271.png)
(
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image272.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image273.png)
为参数),在以
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image071.png)
为极点,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image026.png)
轴的正半轴为极轴的极坐标系中,曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image274.png)
是圆心在极轴上,且经过极点的圆.已知曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image270.png)
上的点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image275.png)
对应的参数
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image276.png)
,射线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image277.png)
与曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image274.png)
交于点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image278.png)
.
(I)求曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image270.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image274.png)
的方程;
(II)若点
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image279.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image280.png)
在曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image270.png)
上,求
![](http://static.zujuan.xkw.com/Upload/2012-08/03/1f444fe9-400c-46b8-9608-d05198b97de5/paper.files/image281.png)
的值.