2020高考数学模拟试题(理)《集合》分类汇编(含答案)

合集下载
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

2020最新模拟试题(理)《集合》分类汇编
1.(2020•梅河口市校级模拟)已知集合2{|23}A x y x x ==-++,2{|log 1}B x x =>,则全集U R =,则下列结论正确的是( ) A .A B A =I
B .A B B =U
C .()U A B =∅I ð
D .U B A ⊆ð
2.(2020•涪城区校级模拟)集合{||2|4}A x x =-<,{|24}x B x =„,则(A B =I ) A .R
B .(2,2)-
C .[2,6)
D .(2-,2]
3.(2020春•五华区月考)已知集合2{|log 1}A x x =<,集合{|||2}B x N x =∈<,则(A B =U
)
A .{|01}x x <<
B .{|02}x x <„
C .{|22}x x -<<
D .{0,1}
4.(2020•眉山模拟)集合{|10}A x x =+>,2{|320}B x x x =-+>,则(R A B =I ð ) A .(1,1)- B .(1,2)
C .[1,2]
D .(1-,1)(1⋃,)+∞
5.(2020•宜昌模拟)已知集合2{|log (1)1}M x x =-<,集合2{|60}N x x x =+-<,则(M N =U )
A .{|33}x x -<<
B .{|12}x x <<
C .{|3}x x <
D .{|23}x x -<<
6.(2020春•桃城区校级月考)已知全集U R =,集合2{|2A y y x ==+,}x R ∈,集合{|(1)}B x y lg x ==-,则阴影部分所示集合为( )
A .[1,2]
B .(1,2)
C .(1,2]
D .[1,2)
7.(2020春•漳州月考)已知集合12
{|log (12)1}A x x =->,则(R A =ð )
A .(-∞,11
)(42⋃,)+∞
B .(-∞,11
][42
U ,)+∞
C .(
14,1
)2 D .1[4,1
]2
8.(2020•凯里市校级模拟)若全集U R =,4{|0log 1}A x x =<<,则(U A =ð ) A .{|1}x x „
B .{|1x x „或4}x …
C .{|4}x x …
D .{|0x x „或4}x …
9.(2020•五华区校级模拟)已知集合{|213}A x x =-+„,||1}B x lnx =„,则(A B =I
)
A .(1-,]e
B .(1-,1]
C .(1,0)-
D .(0,]e
10.(2020•龙岩一模)已知集合{|M x y ==,{|23}N x x =-<<,则(M N =I
)
A .{|32}x x -<„
B .{|32}x x -<<
C .{|22}x x -<„
D .{|22}x x -<<
11.(2020•咸阳二模)集合{|M x y ==,{1N =-,0,1,2},则(M N =I ) A .{0,1}
B .{1-,0,1}
C .{1,1}-
D .{0,1,2}
12.(2020•内蒙古模拟)已知集合2{|230}M x x x =--<,2{|0}N x x mx =-<,若{|01}M N x x =<<I ,则m 的值为( )
A .1
B .1-
C .1±
D .2
13.(2020•全国一模)已知集合2{|230}A x x x =--<,1|1B x x ⎧⎫
=>⎨⎬⎩⎭
,则()(R A B =U ð
)
A .(-∞,1)(3-⋃,)+∞
B .(-∞,1][3-U ,)+∞
C .[3,)+∞
D .(-∞,1][1-U ,)+∞
14.(2020•全国II 卷模拟)已知集合{|230}A x x =-…,{|(2)0}B x x x =-<,则(A B =I
)
A .3|2x x ⎧
⎫⎨⎬⎩
⎭…
B .3
{|2}2
x x <„
C .{|02}x x <„
D .3|02x x ⎧
⎫<⎨⎬⎩
⎭„
15.(2020•邯郸模拟)已知集合2{|650}M x x x =-+…,2{|1}N y y x ==+,则(M N =I )
A .[5,)+∞
B .{1}[5U ,)+∞
C .[1,5]
D .R
16.(2020•重庆模拟)设集合2{|9}A x x =<,{3B =-,2-,1-,0,1,2},则(A B =I
)
A .{0,1,2}
B .{1-,0,1,2}
C .{2-,1-,0,1,2}
D .{2-,1-,0}
17.(2020春•武昌区校级月考)设集合{|11}A x x =-<<,2{|B y y x ==,}x A ∈,则()(R A B =⋂ð )
A .{|01}x x <<
B .{|10}x x -<<
C .{|01}x x <<
D .{|11}x x -<<
18.(2020•金安区校级模拟)已知集合{|20}M x x =-<,2{|4N y Z y x =∈=-+,}x R ∈,则()R M N I ð的子集有( ) A .2个
B .4个
C .8个
D .16个
19.(2020•德阳模拟)已知集合2{|20}A x x x =-=,集合{1B =,2,3},则下列结论正确的是( ) A .2()A B ⊆I
B .2()A B ∈I
C .A B =∅I
D .A B B =U
20.(2020春•天心区校级月考)已知集合{|}A x Z x a =∈…,集合{|24}x B x Z =∈„,若A B I 只有4个子集,则a 的取值范围是( ) A .(2-,1]-
B .[2-,1]-
C .[0,1]
D .(0,1]
答案解析
1.(2020•梅河口市校级模拟)已知集合{|A x y ==,2{|log 1}B x x =>,则全集U R =,则下列结论正确的是( ) A .A B A =I
B .A B B =U
C .()U A B =∅I ð
D .U B A ⊆ð
【解析】由2230x x -++…,(23)(1)0x x -+„, 则3[1,]2A =-,故(U A =-∞ð,3
1)(2
-⋃,)+∞,
由2log 1x >知,(2,)B =+∞,
因此A B =∅I ,3
[1,](2,)2A B =-+∞U U ,
()(2U A B =I ð,)+∞,
3
(2,)(,1)(,)2
+∞⊆-∞-+∞U ,
故选:D .
2.(2020•涪城区校级模拟)集合{||2|4}A x x =-<,{|24}x B x =„,则(A B =I ) A .R
B .(2,2)-
C .[2,6)
D .(2-,2]
【解析】{|26}A x x =-<<Q ,{|2}B x x =„, (2A B ∴=-I ,2].
故选:D .
3.(2020春•五华区月考)已知集合2{|log 1}A x x =<,集合{|||2}B x N x =∈<,则(A B =U
)
A .{|01}x x <<
B .{|02}x x <„
C .{|22}x x -<<
D .{0,1}
【解析】{|02}A x x =<<Q ,{0B =,1}, {|02}A B x x ∴=<U „.
故选:B .
4.(2020•眉山模拟)集合{|10}A x x =+>,2{|320}B x x x =-+>,则(R A B =I ð ) A .(1,1)- B .(1,2)
C .[1,2]
D .(1-,1)(1⋃,)+∞
【解析】{|1}A x x =>-Q ,{|1B x x =<或2}x >,
{|12}R B x x ∴=剟ð, [1R A B ∴=I ð,2].
故选:C .
5.(2020•宜昌模拟)已知集合2{|log (1)1}M x x =-<,集合2{|60}N x x x =+-<,则(M N =U )
A .{|33}x x -<<
B .{|12}x x <<
C .{|3}x x <
D .{|23}x x -<<
【解析】合2{|log (1)1}(1M x x =-<=,3), 集合2{|60}(3,2)N x x x =+-<=-, 则(3,3)M N =-U , 故选:A .
6.(2020春•桃城区校级月考)已知全集U R =,集合2{|2A y y x ==+,}x R ∈,集合{|(1)}B x y lg x ==-,则阴影部分所示集合为( )
A .[1,2]
B .(1,2)
C .(1,2]
D .[1,2)
【解析】集合2{|2A y y x ==+,}[2x R ∈=,)+∞,集合{|(1)}(1B x y lg x ==-=,)+∞, 图形阴影部分为(1,2)U C A B =I , 故选:B .
7.(2020春•漳州月考)已知集合12
{|log (12)1}A x x =->,则(R A =ð )
A .(-∞,11
)(42⋃,)+∞
B .(-∞,11
][42
U ,)+∞
C .(
14,1
)2 D .1[4,1
]2
【解析】Q 111
{|012}{|}242
A x x x x =<-<=<<,
∴1
1(,][,)42
R A =-∞+∞U ð.
故选:B .
8.(2020•凯里市校级模拟)若全集U R =,4{|0log 1}A x x =<<,则(U A =ð ) A .{|1}x x „
B .{|1x x „或4}x …
C .{|4}x x …
D .{|0x x „或4}x …
【解析】:{|14}A x x =<<,U R =, {|1U A x x ∴=„ð或4}x …
. 故选:B .
9.(2020•五华区校级模拟)已知集合{|213}A x x =-+„,||1}B x lnx =„,则(A B =I
)
A .(1-,]e
B .(1-,1]
C .(1,0)-
D .(0,]e
【解析】{|1}A x x =-…,{|0}B x x e =<„, (0A B ∴=I ,]e .
故选:D .
10.(2020•龙岩一模)已知集合{|M x y ==,{|23}N x x =-<<,则(M N =I
)
A .{|32}x x -<„
B .{|32}x x -<<
C .{|22}x x -<„
D .{|22}x x -<<
【解析】{|2}M x x =Q „,{|23}N x x =-<<, {|22}M N x x ∴=-<I „.
故选:C .
11.(2020•咸阳二模)集合{|M x y ==,{1N =-,0,1,2},则(M N =I ) A .{0,1}
B .{1-,0,1}
C .{1,1}-
D .{0,1,2}
【解析】{|1}M x x =Q „,{1N =-,0,1,2}, {1M N ∴=-I ,0,1}.
故选:B .
12.(2020•内蒙古模拟)已知集合2{|230}M x x x =--<,2{|0}N x x mx =-<,若{|01}M N x x =<<I ,则m 的值为( )
A .1
B .1-
C .1±
D .2
【解析】{|13}M x x =-<<Q ,2{|0}N x x mx =-<,{|01}M N x x =<<I , {|0}N x x m ∴=<<, 1m ∴=.
故选:A .
13.(2020•全国一模)已知集合2{|230}A x x x =--<,1|1B x x ⎧⎫
=>⎨⎬⎩⎭
,则()(R A B =U ð
)
A .(-∞,1)(3-⋃,)+∞
B .(-∞,1][3-U ,)+∞
C .[3,)+∞
D .(-∞,1][1-U ,)+∞
【解析】集合2{|230}(1,3)A x x x =--<=-, 1|1(0,1)B x x ⎧⎫
=>=⎨⎬⎩⎭,
A B B =U ,
则()(R A B =-∞U ð,1][3-U ,)+∞ 故选:B .
14.(2020•全国II 卷模拟)已知集合{|230}A x x =-…,{|(2)0}B x x x =-<,则(A B =I
)
A .3|2x x ⎧
⎫⎨⎬⎩
⎭…
B .3
{|2}2
x x <„
C .{|02}x x <„
D .3|02x x ⎧
⎫<⎨⎬⎩
⎭„
【解析】Q 3
{|}2
A x x =…,{|02}
B x x =<<,
∴3{|2}2
A B x x =<I „.
故选:B .
15.(2020•邯郸模拟)已知集合2{|650}M x x x =-+…,2{|1}N y y x ==+,则(M N =I )
A .[5,)+∞
B .{1}[5U ,)+∞
C .[1,5]
D .R
【解析】{|1M x x =„或5}x …,{|1}N y y =…, {1}[5M N ∴=I U ,)+∞.
故选:B .
16.(2020•重庆模拟)设集合2{|9}A x x =<,{3B =-,2-,1-,0,1,2},则(A B =I
)
A .{0,1,2}
B .{1-,0,1,2}
C .{2-,1-,0,1,2}
D .{2-,1-,0}
【解析】{|33}A x x =-<<Q ,{3B =-,2-,1-,0,1,2}, {2A B ∴=-I ,1-,0,1,2}.
故选:C .
17.(2020春•武昌区校级月考)设集合{|11}A x x =-<<,2{|B y y x ==,}x A ∈,则()(R A B =⋂ð )
A .{|01}x x <<
B .{|10}x x -<<
C .{|01}x x <<
D .{|11}x x -<<
【解析】集合{|11}A x x =-<<,2{|B y y x ==,}[0x A ∈=,1), (,0)[1R B =-∞U ð,)+∞,
则()(1R A B =-⋂ð,0), 故选:B .
18.(2020•金安区校级模拟)已知集合{|20}M x x =-<,2{|4N y Z y x =∈=-+,}x R ∈,则()R M N I ð的子集有( ) A .2个
B .4个
C .8个
D .16个
【解析】Q 集合{|20}{|2}M x x x x =-<=<,
2{|4N y Z y x =∈=-+,}{|4}x R y Z y ∈=∈„, {|2}R M x x ∴=…ð,
则(){2R M N =I ð,3,4}, ()R M N ∴I ð共有328=个子集.
故选:C .
19.(2020•德阳模拟)已知集合2{|20}A x x x =-=,集合{1B =,2,3},则下列结论正确的是( ) A .2()A B ⊆I B .2()A B ∈I
C .A B =∅I
D .A B B =U
【解析】Q 集合2{|20}{0A x x x =-==,2}, 集合{1B =,2,3},
2()A B ∴∈I ,{2}A B =I ,{0A B =U ,1,2,3}.
故A ,CD 均错误,B 正确. 故选:B .
20.(2020春•天心区校级月考)已知集合{|}A x Z x a =∈…,集合{|24}x B x Z =∈„,若A B I 只有4个子集,则a 的取值范围是( ) A .(2-,1]-
B .[2-,1]-
C .[0,1]
D .(0,1]
【解析】Q 集合{|}A x Z x a =∈…,集合{|24}{|2}x B x Z x x =∈=剟, A B I 只有4个子集,
{|2}A B x Z a x ∴=∈I 剟中含有两个元素,
01a ∴<„.
a ∴的取值范围是(0,1].故选:D .。

相关文档
最新文档