适用年级:{{getGradeNameByProperty('高三|高考模拟|广东|2011年')}} 试卷类型:{{getTestPaperTypeName('高三|高考模拟|广东|2011年')}} 使用省份:{{getAreaName('高三|高考模拟|广东|2011年')}}
试卷年份:{{getYear('高三|高考模拟|广东|2011年')}}上传日期:2011-03-28题数:21
提示:单击题文可显示答案与解析。
题号:1167445
题型:选择题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】下面为某几何体的三视图,则该几何体的体积为( )
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image051.gif)
题号:1167446
题型:选择题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】若函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image039.gif)
(
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image040.gif)
,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image041.gif)
,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image042.gif)
)在 一个周期内的图象如图2所示,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image043.gif)
分别是这段图象的最高点和最低点,且
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image044.gif)
(
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image045.gif)
为坐标原点),则
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image046.gif)
( )
题号:1167447
题型:选择题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】甲、乙两名运动员的5次测试成绩如下图所示设
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image030.gif)
分别表示甲、乙两名运动员测试成绩的标准差,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image031.gif)
分别表示甲、乙两名运动员测试成绩的平均数,则有 ( )
甲
|
| 乙
|
3 5
| 1
| 4 6
|
6 6 0
| 2
| 1 4 5
|
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image038.gif)
题号:1167448
题型:选择题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】已知等差数列
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image016.gif)
的前
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image017.gif)
项和为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image018.gif)
,且满足
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image019.gif)
,则数列
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image016.gif)
的公差是( )
题号:1167449
题型:选择题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】设集合
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image010.gif)
,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image011.gif)
,那么“
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image012.gif)
”是“
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image013.gif)
”的( )
A.充分不必要条件![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image014.gif) | B.必要不充分条件
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image015.gif) | C.充要条件 | D.既不充分也不必要条件 |
题号:1167450
题型:选择题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】复数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image005.gif)
的虚部是( )
题号:4211374
题型:选择题
难易度:一般
日期:2012-06-21
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】根据表格中的数据,可以判定函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image024.gif)
的一个零点所在的区间为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image025.gif)
,则
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image026.gif)
的一个值为( )
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image027.gif)
| -1
| 0
| 1
| 2
| 3
|
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image028.gif)
| 0.37
| 1[。
| 2.72
| 7.39
| 20.09
|
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image029.gif)
| 1
| 2
| 3
| 4
| 5
|
题号:4211375
题型:选择题
难易度:一般
日期:2012-08-27
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】图3中的阴影部分由底为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image021.gif)
,高为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image021.gif)
的等腰三角形及高
为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image022.gif)
和
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image023.gif)
的两矩形所构成.设函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image056.gif)
是图
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image023.gif)
中
阴影部分介于平行线
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image057.gif)
及
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image058.gif)
之间的那一部分的面积,
则函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image059.gif)
的图象大致为 ( )
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image060.gif)
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image061.gif)
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image062.gif)
题号:1167399
题型:填空题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】(坐标系与参数方程选做题)
在极坐标系中,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image083.gif)
圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
的极坐标方程为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image085.gif)
,过极点的一条直线
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image086.gif)
与圆相交于
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image087.gif)
,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image088.gif)
两点,且∠
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image089.gif)
,则
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image090.gif)
=
.
题号:1167400
题型:填空题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】
(几何证明选讲选做题)
如图,正
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image076.gif)
的边长为2,点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image043.gif)
分别是边
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image077.gif)
的中点,直线
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image078.gif)
与
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image076.gif)
的外接圆的交点为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image079.gif)
、Q,则线段
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image080.gif)
=
.
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image081.gif)
题号:1167401
题型:填空题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】按下列程序框图运算:若输入
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image073.gif)
,则输出k=
▲ ;
若输出k=3,则输入
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image027.gif)
的取值范围是
▲ .
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image074.gif)
题号:1167442
题型:填空题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】若双曲线
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image069.gif)
-
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image070.gif)
=1的渐近线与圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image071.gif)
相切,则此双曲线的离心率为
▲ .
题号:1167443
题型:填空题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】若平面区域
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image067.gif)
是一个梯形,则实数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image026.gif)
的取值范围是[
▲ .
题号:1167444
题型:填空题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】.将一颗骰子掷两次,观察出现的点数,并记第一次出现的点数为
m,第二次出现的点数为
n,向量
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image064.gif)
=(
m,
n),
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image065.gif)
=(3,6),则向量
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image064.gif)
与
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image065.gif)
共线的概率为[
▲ .]
题号:4211376
题型:填空题
难易度:一般
日期:2012-05-24
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】二项式
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image063.gif)
的展开式中常数项是第
▲ 项。
题号:1085661
题型:解答题
难易度:一般
日期:2012-04-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】如图,圆柱的高为2,底面半径为3,AE、DF是圆柱的两条母线,B、C是下底面圆周上的两点,已知四边形ABCD是正方形.
(1)求证:
![](http://static.zujuan.xkw.com/Upload/2012-04/28/2b701607-6316-4ff2-b77e-9b1df9aebff7/paper.files/image182.png)
;
(2)求正方形ABCD的边长;
(3)求直线
![](http://static.zujuan.xkw.com/Upload/2012-04/28/2b701607-6316-4ff2-b77e-9b1df9aebff7/paper.files/image183.png)
与平面
![](http://static.zujuan.xkw.com/Upload/2012-04/28/2b701607-6316-4ff2-b77e-9b1df9aebff7/paper.files/image184.png)
所成角的正弦值.
![](http://static.zujuan.xkw.com/Upload/2012-04/28/2b701607-6316-4ff2-b77e-9b1df9aebff7/paper.files/image185.png)
题号:1167395
题型:解答题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】((本小题满分14分)
已知函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image227.gif)
是函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image228.gif)
的极值点。
(Ⅰ)当
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image229.gif)
时,求
a的值,讨论函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image230.gif)
的单调性;
(Ⅱ)当
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image231.gif)
R时,函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image232.gif)
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image233.gif)
有两个零点,求实数m的取值范围.
(Ⅲ)是否存在这样的直线
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image086.gif)
,同时满足:
①
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image086.gif)
是函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image228.gif)
的图象在点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image234.gif)
处的切线
②
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image086.gif)
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image083.gif)
与函数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image235.gif)
的图象相切于点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image236.gif)
,
如果存在,求实数
b的取值范围;不存在,请说明理由。
题号:1167396
题型:解答题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】((本小题满分14分)
设数列
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image016.gif)
为等比数列,数列
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image196.gif)
满足
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image197.gif)
,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image198.gif)
,已知
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image199.gif)
,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image200.gif)
,其中
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image201.gif)
.
(Ⅰ)求数列
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image016.gif)
的首项和公比;
(Ⅱ)当
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image202.gif)
时,求
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image203.gif)
;
(Ⅲ)设
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image018.gif)
为数列
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image016.gif)
的前
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image017.gif)
项和,若对于任意的正整数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image017.gif)
,都有
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image204.gif)
,求实数
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image205.gif)
的取值范围.
题号:1167397
题型:解答题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】(本小题满分12分)
日销售量
| 1
| 1.5
| 2
|
频数
| 10![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image003.gif)
| 25
| 15
|
频率
| 0.2
|
|
|
某批发市场对某种商品的日销售量(单位:吨)进行统计,最近50天的统计结果如下:
(Ⅰ)填充上表;
(Ⅱ)若以上表频率作为概率,且每天的销售量相互独立.
①5天中该种商品恰好有2天的销售量为1.5吨的概率;
②已知每吨该商品的销售利润为2千元,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image113.gif)
表示该种商品两天销售利润的和(单位:
千元),求
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image113.gif)
的分布列.
题号:1167398
题型:解答题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】(本小题满分l2分)
已知△ABC的三个内角A,B,C所对的边分别为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image096.gif)
且
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image097.gif)
(Ⅰ)求
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image098.gif)
的大小;
(Ⅱ)若
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image100.gif)
求
△ABC。
题号:4211377
题型:解答题
难易度:一般
日期:2011-03-28
来源:2011届广东省汕头市高三第一次模拟考试数学理卷
【题文】((本小题满分14分)
给定椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
:
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image168.gif)
,称圆心在坐标原点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image087.gif)
,半径为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image169.gif)
的圆是椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
的“伴随圆”. 已知椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
的两个焦点分别是
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image170.gif)
,椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
上一动点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image171.gif)
满足
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image172.gif)
.
(Ⅰ)求椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
及其“伴随圆”的方程
(Ⅱ)试探究y轴上是否存在点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image079.gif)
(0,
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image173.gif)
)
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image174.gif)
,使得过点
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image079.gif)
作直线
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image175.gif)
与椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
只有一个交点,且
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image175.gif)
截椭圆
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image084.gif)
的“伴随圆”所得的弦长为
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image176.gif)
.若存在,请求出
![](http://static.zujuan.xkw.com/Upload/2011-03/28/9e481007-f2ba-4dc3-8d3e-76ad83291738/paper.files/image177.gif)
的值;若不存在,请说明理由。