黑龙江齐齐哈尔市2021-2022学年高二上学期期末考试数学试题(Word版含答案)

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名称 黑龙江齐齐哈尔市2021-2022学年高二上学期期末考试数学试题(Word版含答案)
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齐齐哈尔市2021-2022学年高二上学期期末考试
数 学 试 卷
本试卷分第I卷(选择题)和第II卷(非选择题)两部分.
全卷共150分,考试时间120分钟.考生作答时,将答案答在答题卡上,在本试卷上答题无效.考试结束后,将本试卷和答题卡一并交回.
注意事项:
1.答题前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在条形码区域内.
2.选择题必须使用2B铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚.
3.请按照题号顺序在各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试题卷上答题无效.
4.作图可先使用2B铅笔填涂;非选择题必须用黑色字迹的签字笔描黑.
5.保持卡面清洁,不要折叠、不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀.
第I卷
一. 单选题:本大题共8小题,每小题5分,共40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. 直线的方程为,则直线的倾斜角为
A.30° B.45° C.60° D.90°
2. 复数(为虚数单位),则在复平面内对应的点位于
A.第一象限 B.第二象限 C.第三象限 D.第四象限
已知互不重合的直线,互不重合的平面,下列命题正确的是
A.若,则 B.若 ,则
C.若,则 D.若,则
4.1202年,意大利数学家斐波那契(Leonardo Fibonacci,约1170-约1250)出版了他的《算
盘全书》(Liber Abaci),在书中他向欧洲人介绍了东方数学.书中有这样一个数列:
,,且,这个数列就是著名的“斐波那契数列”,则此数列的前项和为
A.10 B.88 C.143 D.232
5.如图所示,在平行六面体中,,,,则
A. B.
C. D.
6. 如图所示,将绘有函数部分图像的纸片沿轴折成直二面角,若之间的空间距离为,则
A. B. C. D.
7.已知圆,过点的直线将圆的面积分割成两个部分,若使得这两部分的面积之差最大,则直线的方程为
A. B. C. D.
8. 如图所示,已知是椭圆的左、右焦点,为椭圆的上
顶点,在轴上,,且是的中点,为坐标原点,若点到直线的距离为,则椭圆的方程为
A. B.
C. D.
多选题:本大题共4小题,每小题5分,共20分.在每小题给出的选项中,有多项符合题目要求,全部选对的得5分,有选错的得0分,部分选对得2分.
9. 下列叙述正确的是
A.集合,,,则“任取,使得”的概率为
B.向量,,若,则
C.若构成空间的一个基底,则也可以构成空间的一个基底
D.“直线与互相平行”是“直线与的斜率相等”的充分不必要条件
10. 扎马钉(图1),是古代军事战争中的一种暗器.
如图2所示,四个钉尖分别记作、、、,
连接这四个顶点构成的几何体为正四面体,组成
该“钉”的四条等长的线段公共点为,设,
则下列结论正确的是
A.
B.为正四面体的中心
C.
D.四面体的外接球表面积为
11. 古希腊著名数学家阿波罗尼斯发现“若为平面上相异的两点,则所有满足:且的点的轨迹是圆”,后来人们称这个圆为阿波罗尼斯圆.在平面直角坐标系中,,若,则下列关于动点的结论正确的是
A. 点的轨迹方程为
B. 面积的最大值为
C. 在轴上必存在异于的两定点,使得
D. 若点,则的最小值为
12.抛物线的焦点为,点,,都在抛物线上,且,则下列结论正确的是
A.抛物线方程为 B.是的重心
C. D.
第II卷
填空题:本大题共4小题,每小题5分,共20分. 把正确答案写在答题卡相应题的横
线上.
13.已知分别是椭圆的左、右焦点,为椭圆的上顶点,且,则椭圆的离心率
14.四叶草也叫幸运草,四片叶子分别象征着:成功、幸福、平安、
健康,表达了人们对美好生活的向往.梵克雅宝公司在设计四叶草
吊坠的时候,利用了曲线方程(如图所示)
进行图案绘制.试求曲线围成的封闭图形的面积
15.如图,棱长为的正方体中,为线段上的动点,为线段上的动点,则长度的最小值为
16.已知一元二次函数满足:,且恒成立,则
若,则数列的前项和为
四. 解答题:共70分,解答应写出文字说明、解答过程或演算步骤.
17.本小题满分10分
已知直线
(1)求过点,且与直线平行的直线的方程;
(2)直线与圆相交于两点,求线段的长.
18.本小题满分12分
已知等差数列满足:,
(1)求等差数列的通项公式;
(2)若,求数列的前项和.
19.本小题满分12分
在中,角所对边分别为,且.
(1)求角的大小;
(2)若,,求的面积.
20.本小题满分12分
如图,某种风筝的骨架模型是四棱锥,四边形是等腰梯形,,,平面,,,
,在上.
(1)为保证风筝飞行稳定,需要在处引一尾绳,使得,
求证:直线平面;
(2)实验表明:当时,风筝表现最好,求此时直线与平面
所成角的正弦值.
21.本小题满分12分
已知双曲线的渐近线方程为,
且虚轴长为.
(1)求双曲线的方程;
(2)若直线与双曲线相交于不同的两点,且满足,
求的取值范围.
22.本小题满分12分
已知函数的图象上有一点列,
点在轴上的射影是,且,且,.
(1)求证:是等比数列,并求数列的通项公式;
(2)对任意的正整数,当时,不等式恒成立,
求实数的取值范围;
(3)设四边形的面积是,求证:.
高二数学试卷 第 1 页 共8页高二数学试卷参考答案及评分标准
一. 单选题:本大题共 8 小题,每小题 5 分,共 40 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.
题号 1 2 3 4 5 6 7 8
答案 B C D C A A C D
二. 多选题:本大题共 4 小题,每小题 5 分,共 20 分.在每小题给出的选项中,有多项符合题目要求,全部选
对的得 5 分,有选错的得 0 分,部分选对得 2 分.
题号 9 10 11 12
答案 AB AB ACD ABD
三. 填空题:本大题共 4 小题,每小题 5 分,共 20 分. 把正确答案写在答题卡相应题的横线上.
3
13、 14、8 4 15、 1 16 x 2 2n、 (注:第一空 2 分;第二空 3 分)
2 n 1
四. 解答题:共 70 分,解答应写出文字说明、解答过程或演算步骤.
17.(10 分)
解: (1)【解法一】
2
直线 l的斜率为 kl ··················································································································································1分3
l //m 2 直线m的斜率为 km ·························································································································2分3
2
直线m的方程为 y 3 (x 2) ······················································································································3分
3
即 2x 3y 13 0 ····························································································································································4分
【解法二】
l //m 直线m的方程为 2x 3y C 0 ············································································································1分
直线m过点 (2,3) 2 2 3 3 C 0 C 13 ························································································3分
直线m的方程为 2x 3y 13 0 ··························································································································4分
(2)易知圆心C(1,2),半径 r 1 ······························································································································5分
C l d | 2 1 3 2 6 | 2 2 13 圆心 到直线 的距离 ······································································7分
22 32 13 13
| AB | 2 r 2 d 2 2 1 4 6 13 ··················································································································9分
13 13
6 13
线段 AB的长为 ···············································································································································10分
13
高二数学试卷参考答案及评分标准 第 1 页(共 4页)
18.(12 分)
a2 2a5 12 3a1 9d 12 a1 1
解:(1)设等差数列{an}的公差为 d ·····································3 分
3a4 2a1 10 a1 9d 10 d 1
an 1 (n 1) 1 n 等差数列{an}的通项公式为 an n ···········································································5 分
(2) bn n 2
n ··································································································································································6 分
S 1n 1 2 2 2
2 3 23 (n 1) 2n 1 n 2n ①·····················································································7 分
2Sn 1 2
2 2 23 3 24 (n 1) 2n n 2n 1 ②·····················································································8 分
①-② S 2 22 23 2n n 2n 1得: n ·······································································································9 分
2(1 2n )
Sn n 2
n 1 ············································································································································10 分
1 2
数列{bn}的前 n项和 Sn (n 1) 2
n 1 2 ············································································································12 分
19.(12 分)
3csin B bcos(C 解:(1) ) ,由正弦定理可得: 3 sinC sin B sin Bcos(C ) ····················1分
3 3
0 B sin B 0 3 sinC 1 cosC 3 sinC ·····················································································3分
2 2
tanC 3 ··········································································································································································5分
3
0 C C 角C的大小为 ·····················································································································6分
6 6
(2) c2 a2 b2 2abcosC c2 12 b2 6b ·······························································································7分
3c2 3b2 2a2 c2 8 b2 8 b2 12 b2 6b b2 3b 2 0 b 1,或b 2 ···················9分
①当b 1 c 7 S 1 3 时, ABC absinC ·····························································································10分2 2
②当b 2时, c 2 S 1 ABC absinC 3 ································································································11分2
ABC的面积为 3 3或 ·········································································································································12 分
2
高二数学试卷参考答案及评分标准 第 2 页(共 4页)
20.(12 分)
证明:(1)四边形 ABCD是等腰梯形, AD // BC OD 1,OB 2 ··················1 分
EO PE DO 1连接 , EO // PD ··································································2 分
PB DB 3
EO 平面 AEC, PD 平面 AEC ·····································································3 分
PD //平面 AEC ·············································································································4 分
(2) PO 平面 ABCD, AC 平面 ABCD PO AC
tan PAC 2 OP 2 OP 2 ·························································································································5 分
OA
OB OC 以O为坐标原点,分别以OB,OC,OP所在直线为 x,y,z轴,建立空间直角坐标系
Oxyz O(0,0,0),P(0,0,2), A(0, 1,0),C(0,2,0),B(2,0,0) ······························································7 分
PA (0, 1, 2), PC (0,2, 2),PB (2,0, 2),···························································································8 分
n PC 2y 2z 0
设平面 PBC 的法向量为 n (x, y, z)
n PB 2x 2z 0
令 x 1 y 1, z 1 n (1,1,1) ···························································································································10 分
PA PBC sin | PA n | 3 15设 与平面 所成角为 | cos PA ,n | ··························11 分
| PA || n | 5 3 5
PA 与平面PBC 15所成角的正弦值为 ···············································································································12 分
5
21.(12 分)
b 3

解: (1)由题,可知 a 2 ········································································································································2 分

2b 2 3
a 2
解得 ·······································································································································································3 分
b 3
2
C x y
2
双曲线 的方程为 1.·······························································································································4 分
4 3
x2 y2
1 2 2
(2) 4 3 ,消 y得: (3 4k )x 8kx 16 0 ·······················································································6 分
y kx 1
高二数学试卷参考答案及评分标准 第 3 页(共 4页)
3 4k 2 0 3 1 k 1,且k ··············································································7分
2 ( 8k) 64(3 4k
2) 0 2
设 A(x1, y1) B(x , y ) x
8k 16
, 2 2 1 x2 2,x1x2 2 ··············································································8分3 4k 3 4k
OA OB x1x2 y1y2 x1x2 (kx 1)(kx 1) (1 k
2
1 2 )x1x2 k(x1 x2) 1 1 ·······························9分
16(1 k 2) 8k 2 10 16k 2
2 2 2 0 2 0 3
3 3
4k 2 0 k ,或k ··················11分
3 4k 3 4k 3 4k 2 2
k的取值范围为 1 k 3 3 ,或 k 1 ································································································12 分
2 2
22.(12 分)
y log3(xn 1) 解:由题可知 n (xn 0,n N ),·········································································································1分xn 1
n 2 n x 1(1) ,且 N * , xn 3xn 1 2 xn 1 3(xn 1 1), n 3(常数) ··································2分xn 1 1
x1 1 3 {xn 1}是首项为3,公比为3的等比数列································································································3分
xn 1 3 3
n 1 3n x nn 3 1 数列{x
n
n}的通项公式为 xn 3 1 ···························································4分
n
(2) y log 3 n y n 1n 3n n 0
n 1 1 yn 1 yn 数列{yn}单调递减··········································5分3 3 yn 3n
y 1n 最大值为 y1 · 9t
2 18mt 0恒成立···········································································································6分
3
9t 2 18t 0 m [ 1,1] t 2,或t 2
9t
2 18t 0
t的取值范围为 ( , 2) (2, ) ···························································································································7分
(y y )(x x ) 4n 1
(3)四边形 PQ Q n n 1 n 1 nn n n 1Pn 1的面积是Tn ································································8分2 3
3 3 3(1 1 ) ·························································································································10分
n(4n 1) n(n 1) n n 1
1 1 1 3[(1 1) (1 1) (1 1 1 1 1 ) ( )] 3(1 ) ·······················11分
T1 2T2 nTn 2 2 3 3 4 n n 1 n 1
n N * 1 3 3(1 ) 3 3
n 1 n 1
1 1 1
3 .············································································································································12分
T1 2T2 nTn
如有其他解法,保证各问分值不变的前提下,酌情给分.
高二数学试卷参考答案及评分标准 第 4 页(共 4页)
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