2015年天津市高考数学试卷(理科)答案与解析.pdf
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1、1 2015 年天津市高考数学试卷理科参考答案与试题解析一.选择题在每题给出的四个选项中,只有一项是符合题目要求的1 5 分 2015?天津已知全集U=1,2,3,4,5,6,7,8,集合 A=2,3,5,6,集合 B=1,3,4,6,7,则集合A?UB=A 2,5 B3,6 C2,5,6 D2,3,5,6,8 考点:交、并、补集的混合运算专题:集合分析:由全集 U 及 B,求出 B 的补集,找出A 与 B 补集的交集即可;解答:解:全集 U=1,2,3,4,5,6,7,8,集合 A=2,3,5,6,集合 B=1,3,4,6,7,?UB=2,5,8,则 A?UB=2,5 故选:A点评:此题考查
2、了交、并、补集的混合运算,熟练掌握运算法则是解此题的关键2 5 分 2015?天津设变量x,y 满足约束条件,则目标函数z=x+6y 的最大值为A3B4C18 D40 考点:简单线性规划专题:不等式的解法及应用分析:作出不等式组对应的平面区域,利用目标函数的几何意义,利用数形结合确定z的最大值解答:解:作出不等式组对应的平面区域如图:阴影部分由 z=x+6y 得 y=x+z,平移直线y=x+z,由图象可知当直线y=x+z 经过点 A 时,直线y=x+z 的截距最大,2 此时 z 最大由,解得,即 A0,3将 A0,3的坐标代入目标函数z=x+6y,得 z=3 6=18即 z=x+6y 的最大值
3、为18故选:C点评:此题主要考查线性规划的应用,结合目标函数的几何意义,利用数形结合的数学思想是解决此类问题的基本方法3 5 分 2015?天津阅读如图的程序框图,运行相应的程序,则输出S的值为A10 B6C14 D18 考点:程序框图专题:图表型;算法和程序框图分析:模拟执行程序框图,依次写出每次循环得到的i,S的值,当 i=8 时满足条件i5,退出循环,输出S的值为 6文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4
4、H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4
5、K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4
6、H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4
7、K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4
8、H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4
9、K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4H7C4T3T4文档编码:CK4Z5H4K2X4 HF7T6M1J2M1 ZP4
10、H7C4T3T43 解答:解:模拟执行程序框图,可得S=20,i=1 i=2,S=18 不满足条件i5,i=4,S=14 不满足条件i5,i=8,S=6 满足条件i5,退出循环,输出S 的值为 6故选:B点评:此题主要考查了循环结构的程序框图,正确写出每次循环得到的i,S 的值是解题的关键,属于基础题4 5 分 2015?天津设x R,则“|x2|1”是“x2+x20”的A充分而不必要条件B必要而不充分条件C充要条件D既不充分也不必要条件考点:必要条件、充分条件与充要条件的判断专题:简易逻辑分析:根据不等式的性质,结合充分条件和必要条件的定义进行判断即可解答:解:由“|x2|1”得 1x3,由
11、 x2+x20 得 x1 或 x 2,即“|x2|1”是“x2+x20”的充分不必要条件,故选:A点评:此题主要考查充分条件和必要条件的判断,比较基础5 5 分 2015?天津如图,在圆O 中,M、N 是弦 AB 的三等分点,弦CD,CE 分别经过点 M,N,假设 CM=2,MD=4,CN=3,则线段NE 的长为AB3CD考点:与圆有关的比例线段专题:选作题;推理和证明分析:由相交弦定理求出AM,再利用相交弦定理求NE 即可文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码
12、:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2
13、HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 Z
14、Z10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档
15、编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B
16、2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3
17、 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1
18、文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T14 解答:解:由相交弦定理可得CM?MD=AM?MB,2 4=AM?2AM,AM=2,MN=NB=2,又 CN?NE=AN?NB,3 NE=4 2,NE=故选:A点评:此题考查相交弦定理,考查学生的计算能力,比较基础6 5 分 2015?天津 已知双曲线=1 a0,b0的一条渐近线过点2,且双曲线的一个焦点在抛物线y2=4x 的准线上,则双曲线的方程为A=1 B=1 C=1 D=1 考点:双曲线的标准方程专题:计算题;圆锥曲线的定义
19、、性质与方程分析:由抛物线标准方程易得其准线方程,从而可得双曲线的左焦点,再根据焦点在x轴上的双曲线的渐近线方程渐近线方程,得a、b 的另一个方程,求出a、b,即可得到双曲线的标准方程解答:解:由题意,=,抛物线 y2=4x 的准线方程为x=,双曲线的一个焦点在抛物线y2=4x 的准线上,c=,a2+b2=c2=7,a=2,b=,双曲线的方程为故选:D点评:此题主要考查双曲线和抛物线的标准方程与几何性质,考查学生的计算能力,属于基础题文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T
20、1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5
21、N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S
22、2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H
23、2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3
24、Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B
25、8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y7H2T1文档编码:CI1S3Z5N9B2 HK7I4B8S2Q3 ZZ10H7Y
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