2019年全国高考理科数学试题分类汇编1：集合,推荐文档

2019 年全国高考理科数学试题分类汇编 1：集合
一、选择题
1.．（2019 年普通高等学校招生统一考试重庆数学（理）试题（含答案））已知全集U = {1, 2, 3, 4},集合A ={1，2}, B ={2，3},则ðU (A B )= (
)A.{1，3 ，4}
B.{3，4}
C. {3}
D. {4}【答案】D 2.．（2019 年普通高等学校招生统一考试辽宁数学（理）试题（WORD 版））已知集合
A = {x | 0 < log 4 x < 1},
B = {x | x ≤ 2}，则A B =
A. (0，1)
B. (0，2]
C. (1, 2)
D. (1，
2]【答案】D
3.．（2019 年普通高等学校招生统一考试天津数学（理）试题（含答案））已知集合 A = {x ∈R | |x |≤2},A = {x ∈R | x ≤1}, 则 A ⋂ B =
(A)(-∞, 2](B) [1,2](C) [2,2](D) [-2,1]
【答案】D
4.．（2019 年普通高等学校招生统一考试福建数学（理）试题（纯 WORD 版））设 S,T,是 R 的两个非空子集,如果存在一个从 S 到 T 的函数 y = f (x ) 满足: (i )T = { f (x ) | x ∈ S };(ii )对任意 x 1 , x 2 ∈ S , 当 x 1 < x 2 时,
恒有 f (x 1) < f (x 2 ) ,那么称这两个集合“保序同构”.以下集合对不是“保序同构”的是(
)A. A = N *, B = N
B. A = {x | -1 ≤ x ≤ 3}, B = {x | x = -8或0 < x ≤ 10}
C. A = {x | 0 < x < 1}, B = R
D. A = Z , B = Q 【答案】D 5.．（2019 年高考上海卷（理））设常数 a ∈ R ,集合 A = {x | (x -1)(x - a ) ≥ 0}, B = {x | x ≥ a -1} ,若
A ⋃
B = R ,则 a 的取值范围为(
)(A)(-∞, 2)(B)(-∞, 2](C)(2, +∞)(D)[2, +∞)
【答案】B.
6.．（2019 年普通高等学校招生统一考试山东数学（理）试题（含答案））已知集合 A ={0,1,2},则集合
B = {x - y x ∈ A , y ∈ A }中元素的个数是
(A) 1
(B)3(C)5(D)9
【答案】C
7.．（2019 年高考陕西卷（理））设全集为 R , 函数 f (x ) = M , 则C R M 为(A) [-1,1](B) (-1,1)
(C)(-∞, -1] ⋃[1, +∞)(D)(-∞, -1) ⋃ (1, +∞)
52⎪2{}{}{}R , B.,,
,则(){ }【答案】D
8.．（2019 年普通高等学校招生统一考试大纲版数学（理）WORD 版含答案（已校对））设集合
A = {1, 2, 3},
B = {4, 5}, M = {x | x = a + b , a ∈ A , b ∈ B }, 则 M 中的元素个数为
(A)3(B)4(C)5(D)6
【答案】B
9. ．（2019 年高考四川卷（理））设集合 A = {x | x + 2 = 0},集合 B = {x | x 2 - 4 = 0},则 A B = (
)
(A){-2}(B){2}(C){-2, 2}(D) ∅ [ 【答案】A 10.．（2019 年高考新课标 1（理））已知集合 A = {x | x 2 - 2x > 0}, B = {x | -< x <5},则()
A.A∩B=∅
B.A∪B=R
C.B ⊆A
D.A ⊆B 【答案】B. 11.．（2019 年高考湖北卷（理））已知全
⎪
集为 R ,集合 A = ⎨ x ⎩A. {x | x ≤ 0}⎛ 1 ⎫x ⎪⎝⎭≤ 1⎬ ,
B = {x | x - 6x + 8 ≤ 0},则 A
C R B = ()⎭
B. {x | 2 ≤ x ≤ 4}
C. {x | 0 ≤ x < 2或x > 4}
D.{x | 0 < x ≤ 2或x ≥ 4}【答案】C
12.．（2019 年普通高等学校招生统一考试新课标Ⅱ卷数学（理）（纯 WORD 版含答案））已知集合
M = {x | (x -1)2 < 4, x ∈ R }, N = {-1, 0,1, 2, 3},则 M N =
(A) {0,1,2}(B) {-1,0,1,2}(C) {-1,0,2,3}(D) {0,1,2,3}
【答案】A
13.．（2019 年普通高等学校招生统一考试广东省数学（理）卷（纯 W ORD 版））设集合
M = {x | x 2 + 2x = 0, x ∈ R }N = {x | x 2 - 2x = 0, x ∈ R }M N =00, 2A . B.-2, 0C.-2, 0, 2D.
【答案】D 14.．（2019 年普通高等学校招生统一考试浙江数学（理）试题（纯 WORD 版））设集合S = {x | x > -2},T = {x | x 2 + 3x - 4 ≤ 0},则(C S ) ⋃ T =
A.
(-2,1]【答案】C
B. (-∞,-4]
C. (-∞,1]
D.[1,+∞)
15.．（2019 年普通高等学校招生统一考试广东省数学（理）卷（纯 WORD 版））设整数 n ≥ 4 ,集合X = {1, 2, 3, , n }.令集合S = {(x , y , z )| x , y , z ∈ X ,且三条件x <有y 一<个z ,成y 立< z < x , z < x < y }(x , y , z )(z , w , x )都在 S 中,则下列选项正确的是(
),若和
(y , z , w )∈ S (x , y , w )∉ S (y , z , w )∈ S (x , y , w )∈ S
A .
(y, z, w)∉S (x, y, w)∈S
(y, z, w)∉S (x, y, w)∈S
C.,
D.,
(一)必做题(9~13 题) 【答案】B
16.．（2019 年高考北京卷（理））已知集合A={-1,0,1},B={x|-1≤x<1},则A∩B=()
A.{0}
B.{-1,0}
C.{0,1}
D.{-1,0,1}
【答案】B
17.．（2019 年上海市春季高考数学试卷(含答案)）设全集U =R ,下列集合运算结果为R的是()
(A)Z ðu N(B)N ðu N(C)ðu(ðu∅)(D)ðu{0}
【答案】A
二、填空题
18.．（2019 年普通高等学校招生全国统一招生考试江苏卷（数学）（已校对纯 WORD 版含附加题））集合{-1,0,1} 共有个子集.
【答案】8
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