【经典汇编】2019-2020年河南省郑州市二模:郑州市2019届高三第二次模拟考试文综历史试题-含答案
2019届河南省郑州市高三第二次质量检测数学(文)试卷及解析

2019届郑州市高三第二次质量检测数学(文)试卷第Ⅰ卷(选择题共60分)一、单项选择题:每题均有四个选项,其中只有一个正确的,本大题共12小题,每小题5分,共60分1.已知全集,,,则()A. B. C. D.【答案】B【解析】【分析】由全集U=R,求出B的补集,找出A与B补集的公共部分,即可确定出所求的集合.【详解】∵又由全集U=R,∴={y|y≤0 },则A∩(∁U B)={x|≤0 }=.故选:B.2.已知是虚数单位,复数满足,则()A. B. C. D.【答案】C【解析】【分析】根据复数的定义与运算性质,求出z的值.【详解】∵,则2z=i(1-z),设z=a+bi,代入2z=i(1-z)中,有2a+2bi=i(1-a-bi)=i-ai+b=b+(1-a)i,∴2a=b且2b=1-a,解得a=,b=∴z i.则,故选:C.3.南宋数学家秦九韶在《数书九章》中提出的秦九韶算法至今仍是多项式求值比较先进的算法,已知,程序框图设计的是求的值,在处应填的执行语句是()A. B. C. D.【答案】B【解析】【分析】结合程序的运行过程及功能,可得答案.【详解】由已知中的程序框图可知:该程序的功能是利用循环结构计算并输出变量S的值,结合程序框图的功能可知:n的值为多项式的系数,由2019,2018,2017…直到1,由程序框图可知,处理框处应该填入n=2019﹣i.故选:B.4.已知双曲线的离心率为,则它的一条渐近线被圆截得的线段长为()A. B. C. D.【答案】D【解析】【分析】。
郑州市2019年高三第二次模拟考试 文科数学试题

郑州市2019年高三第二次模拟考试文科数学试题卷2019.4第Ⅰ卷(选择题 共60分)一、单项选择题:每题均有四个选项,其中只有一个正确的,本大题共12小题,每小题5分,共60分。
【1】已知全集R =U ,}11|{<<-=x x A ,}0|{>=y y B ,则=)(B C A R ( )(A ))01(,- (B )]01(,- (C ))10(, (D ))10[, 【2】已知i 是虚数单位,复数z 满足i zz=-12,则=z ( ) (A )5 (B )5 (C )55(D )51【3】南宋数学家秦九韶在《数书九章》中提出的秦九韶算法至今仍是多项式求值比较先进的算法,已知1220182019)(20172018++⋅⋅⋅++=x x x x f ,程序框图设计的是求)(0x f 的值,在M 处应填的执行语句是( )(A )i n -=2018 (B )i n -=2019 (C )1+=i n (D )2+=i n【4】已知双曲线)0,0(12222>>=-b a by a x 的离心率为2,则它的一条渐近线被圆0622=-+x y x 截得的线段长为( ) (A )23 (B )3 (C )223 (D )23【5】将甲、乙两个篮球队5场比赛的得分数据整理成如图所示的茎叶图,由图可知以下结论正确的是( )(A )甲队平均得分高于乙队的平均得分 (B )甲队得分的中位数大于乙队得分的中位数 (C )甲队得分的方差大于乙队得分的方差 (D )甲乙两队得分的极差相等 【6】将函数x x f sin 2)(=的图象向左平移6π个单位,然后纵坐标不变,横坐标变为原来的2倍,得到)(x g 的图象,下面四个结论正确的是( ) (A )函数)(x g 在区间]32,0[π上为增函数 (B )将函数)(x g 的图象向右平移6π个单位后得到的图象关于原点对称 (C )点)0,3(π是函数)(x g 图象的一个对称中心(D )函数)(x g 在]2,[ππ上的最大值为1【7】高斯是德国著名的数学家,近代数学奠基者之一,享有“数学王子”的称号,用其名字命名的“高斯函数”为:设R ∈x ,用][x 表示不超过x 的最大整数,则][x y =称为高斯函数。
郑州市高三语文第二次模拟考试试卷(I)卷

郑州市高三语文第二次模拟考试试卷(I)卷姓名:________ 班级:________ 成绩:________一、选择题 (共1题;共6分)1. (6分) (2019高三上·浙江期中) 阅读下面的文字,完成各题(甲)《长恨歌》是白居易诗作中脍炙人口的名篇,在这首长篇叙事诗里,诗人以精致的语言、优美的形象、浪漫的手法,叙述了这场安史之乱中的悲剧:唐明皇和杨贵妃用自己酿成的叛乱断送了爱情,只能没完没了地啃着这一精神的苦果。
诗人并不拘泥于历史,而是根据当时的传说和街坊的歌唱,从中蜕化出一个宛转动人的故事。
诗中的人物和情节都是艺术化的,是现实中人的复杂心理的再现,因而能在读者的心中漾起涟漪。
(乙)《长恨歌》就是歌“长恨”,“长恨”是诗歌的主题、故事的焦点,也是埋在诗里的一颗牵动人心的种子。
(丙)而“恨”什么,为什么要“长恨”,诗人不是直接铺叙出来,而是通过他笔下诗化的故事一层一层地展示给读者,人们自己去揣摩、去回味、去感受。
(1)文段中加下划线的词语,运用不正确的一项是()A . 脍炙人口B . 拘泥C . 蜕化D . 因而(2)文段中画线的甲、乙、丙句,标点有误的一项是()A . 甲B . 乙C . 丙二、现代文阅读 (共3题;共27分)2. (6分)(2016·南京模拟) 阅读下面的文字,完成小题。
“黑箱”是控制论中的概念,意为在认识上主体对其内部情况全然不知的对象。
“科技黑箱“的含义与此有所不同,它是一种特殊的存贮知识、运行知识的设施或过程,使用者如同面对黑箱,不必打开,也不必理解和掌握其中的知识,只需按规则操作即可得到预期的结果。
例如电脑、手机、摄像机、芯片,以及药品等,可以说,几乎技术的全部中间和最终成果都是科技黑箱。
在科技黑箱的生产过程中,科学知识是基础,价值观和伦理道德则对科学知识进行选择。
除此以外,科技黑箱中还整合了大量人文的、社会的知识,并且或多或少渗透了企业文化和理念。
河南省郑州市2019届高三第二次模拟考试数学(理)试题(Word版)

河南省郑州市2019届高三第二次模拟考试理科数学试题卷本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分.考试时间120分钟,满分150 分.考生应首先阅读答题卡上的文字信息,然后在答题卡上作答,在试题卷上作答无效.交卷时只交答题卡.第Ⅰ卷(选择题 共60分)一、选择题(本大题共12小题,每小题5分,共60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.若复数2b ii++为纯虚数,则实数b 等于 A .3 B .12-C .13D .-1 2.已知全集U =R ,A ={x |y =ln (1-x 2)},B ={y |y =4x -2},则A ∩(C R B )= A .(-1,0) B .[0,1)C .(0,1)D .(-1,0]3.南宋数学家秦九韶在《数书九章》中提出的秦九韶算法至今仍是多项式求值比较先进的算法,已知f (x )=2019x 2018+2018x 2017+…+2x +1,程序框图设计的是求f (x 0)的值,在M 处应填的执行语句是 A .n =2018-i B .n =2019-i C .n =i +1 D .n =i +24.在如图所示的正方形中随机投掷10000个点,则落入阴影部分(曲线C 为正态分布N (-2,4)的密度曲线)的点的个数的估计值为(附:X ~N (μ,σ2)), 则P (μ-σ<X ≤μ+σ)=0.6827, P (μ-2σ<X ≤μ+2σ)=0.9545.) A .906 B .2718 C .1359 D .3413 5.将函数f (x )=2sinx 的图象向左平移6π个单位,然后纵坐标不变,横坐标变为原来的2倍,得到g (x )的图象,下面四个结论正确的是 A .函数g (x )在[π,2π]上的最大值为1 B .将函数g (x )的图象向右平移6π个单位后得到的图象关于原点对称 C .点(3π,0)是函数g (x )图象的一个对称中心 D .函数g (x )在区间[0,23π ]上为增函数 6.设变量x ,y 满足约束条件1y x y x y ⎧⎪⎨⎪⎩≤2,+≥1,-≤,则目标函数313x y +z =() 的最大值为A .1113() B . 313() C .3 D .4 7.在Rt △ABC 中,∠C =90°,CB =2,CA =4,P 在边AC 的中线BD 上,则 CP BP ⋅uu r uu r的最小值为 A .12-B .0C .4D .-18.如图,网格纸上小正方形的边长为1,粗线画出的是某几何体三视图,则此几何体的外接球的体积为 A .4552π B .13552πC .1805πD .905π9.高斯是德国著名的数学家,近代数学奠基者之一,享有“数学王子”的称号,用其名字命名的“高斯函数”为:设x ∈R ,用[x]表示不超过x 的最大整数,y =[x]称为高斯函数.例如:[-2.1]=-3,[3.1]=3,已知函数12312x x f x ++()=+,则函数y =[f (x )]的值域为A .(12,3) B .(0,2] C .{0,1,2} D .{0,1,2,3} 10.已知双曲线22221x y a b-=(a >0,b >0)的左、右焦点分别为F 1,F 2,若双曲线上存在点P 使1221sin 2sin F aF c∠PF =∠PF ,则该双曲线的离心率的取值范围是A .31731722e -+<<B .372e +2<< C .3172e +1<<D .3172e +2<< 11.在△ABC 中,已知AB =23 ,BC =26,∠ABC =45°,D 是边AC 上的一点,将△ABC 沿BD 折叠,得到三棱锥A -BCD ,若该三棱锥的顶点A 在底面BCD 的射影M在线段BC 上,设BM =x ,则x 的取值范围是A .(0,23)B .(3,6)C .(6,23)D .( 23,26) 12.已知抛物线C :y 2=4x 的焦点为F ,直线l 过焦点F 与抛物线C 分别交于A ,B 两点,且直线l 不与x 轴垂直,线段AB 的垂直平分线与x 轴交于点T (5,0),则 S △AOB =A . 22B .3C .6D .36第Ⅱ卷(主观题部分,共90分)本卷包括必考题和选考题两部分.第13—21题为必考题,每个试题考生都必须作答,第22—23题为选考题,考生根据要求作答.二、填空题(本大题共4小题,每小题5分,共20分,把答案填在答题卡上.) 13.已知等比数列{n a }为单调递增数列,设其前n 项和为n S ,若a 2=2,S 3=7,则a 5的值为__________. 14.已知cos (α-3π )+cos α=435,则cos (6π-α)=__________.15.二项式(ax +36)6的展开式中x 5的系数为3,则0a xdx ⎰=__________.16.已知函数f (x )=ae x -12x 2-b ,(a ,b ∈R ),若函数f (x )有两个极值点x 1,x 2,且212xx ≥, 实数a 的取值范围是__________.三、解答题(本大题共6小题,共70分.解答应写出文字说明,证明过程或演算步骤.) 17.(本小题满分12分)已知数列{n a }中,a 1=1,n a >0,前n 项和为n S ,若n a =n S +n 1S - (n ∈N *,且n ≥2).(Ⅰ) 数列{n a }的通项公式;(Ⅱ)记n c =n a ·2n a,求数列{n c }的前n 项和n T .18.(本小题满分12分)如图,等腰直角△ABC 中,∠B =90°,平面 ABEF ⊥平面ABC ,2AF =AB =BE ,∠FAB =60°, AF ∥BE .(Ⅰ)求证:BC ⊥BF ;(Ⅱ)求二面角F -CE -B 的正弦值. 19.(本小题满分12分)目前,浙江和上海已经成为新高考综合试点的“排头兵”,有关其他省份新高考改革的实施安排,教育部部长在十九大上做出明确表态:到2020年,我国将全面建立起新的高考制度.新高考规定:语文、数学和英语是考生的必考科目,考生还需从物理、化学、生物、历史、地理和政治六个科目中选取三个科目作为选考科目.若一个学生从六个科目中选出了三个科目作为选考科目,则称该学生的选考方案确定;否则,称该学生选考方案待确定.例如,学生 甲选择“物理、化学和生物”三个选考科目,则学生甲的选考方案确定,“物理、化学和生物”为其选考方案.某校为了解高一年级840名学生选考科目的意向,随机选取60名学生进行了一次调查,统计选考科目人数如下表:(Ⅰ)估计该学校高一年级选考方案确定的学生中选考生物的学生有多少人?(Ⅱ)将列联表填写完整,并通过计算判定能否有99.9%把握认为选历史是否与性别有关?(Ⅲ)从选考方案确定的16名男生中随机选出2名,设随机变量ξ=⎧⎨⎩0,2名男生选考方案不同1,2名男生选考方案相同 ,求ξ的分布列及数学期望E ξ.20.(本小题满分12分)在直角坐标系xOy 中,已知圆C 1:x 2+y 2=r 2(r >0)与直线l 0:y =x +22相切,点A 为圆C 1上一动点,AN ⊥x 轴于点N ,且动点满足OM AM ON +=uuu r uuu r uuu r,设动点M 的轨迹为曲线C .(Ⅰ)求曲线C 的方程;(Ⅱ)设P ,Q 是曲线C 上两动点,线段PQ 的中点为T ,OP ,OQ 的斜率分别为k 1,k 2,且k 1k 2=14-,求|OT |取值范围.21.(本小题满分12分)已知函数f(x)=(x2+x)ln 1x-ax,g(x)=23x3+(1-a)x2-2ax+b,a,b∈R.(Ⅰ)求函数g(x)的单调区间;(Ⅱ)若f(x)≤g(x)恒成立,求b-2a的最小值.请考生在22、23两题中任选一题作答,如果多做,则按所做的第一题记分.22.[选修4—4:坐标系与参数方程](10分)在平面直角坐标系xOy中,以O为极点,x轴的正半轴为极轴,建立极坐标系,曲线C的极坐标方程为ρ2cos2θ+3ρ2sin2θ=12,直线l 的参数方程为22222x ty t⎧⎪⎪⎨⎪⎪⎩=-+,=(t为参数).直线l与曲线C分别交于M,N两点.(Ⅰ)若点P的极坐标为(2,π),求|PM|·|PN|的值;(Ⅱ)求曲线C的内接矩形周长的最大值.23.[选修4—5:不等式选讲](10分)设函数f(x)=|ax+l|+|x-a|(a>0),g(x)=x2-x.(Ⅰ)当a=1时,求不等式g(x)≥f(x)的解集;(Ⅱ)已知f(x)≥2恒成立,求a的取值范围.数学(理科)参考答案一、选择题:BDBCD CAACD CA 一、填空题:13.16; 14.;5415.;32 16.ln 2(0,].2三、解答题: 17.解:(1)在数列中,①∵②且,∴①式÷②式得:,∴数列以111==a S 为首项,公差为1的等差数列,∴.n S ,n )1n (1S 2n n =∴=-+=……3分当时,12)1(221-=--=-=-n n n S S a n n n , 当时,11=a ,也满足上式,∴数列的通项公式为12-=n a n . ……6分(2)由(1)知,122)12(12-⋅-=∴-=n n n n c n a ,, 则12532)12(252321-⋅-++⋅+⋅+⋅=n n n T ①12127532)12(2)32(2523214+-⋅-+⋅-++⋅+⋅+⋅=n n n n n T ②①-②得,12221212532)12(41)21(8222)12()222(223+-+-----+=--++++=-n n n n n n n T122)235(310+-+-=n n .9102)5n 6(T 1n 2n +-=∴+……12分18.解:(1)证明:等腰直角中 90=∠B ,即,又,,,, 又,. ……4分(2)由(1)知,ABEF BC 平面⊥故建立如图所示空间直角坐标系,设,则由已知可得,,,,,,)0,2,0(=BC ,设平面的一个法向量为,则有⇒令,则,即.设平面BCE 的一个法向量),,(111z y x m =,则有11111113,0,0203200z x y y z y x BC m EC m ==∴⎪⎩⎪⎨⎧==-+⇒⎪⎩⎪⎨⎧=∙=∙,令)1,0,3(,31==m x 则, 设二面角B CE F --的平面角为θ,则515sin ,510102253cos =∴=⨯+=∙=θθnm n m , 所以二面角B CE F --的的正弦值为515. ……12分 19.解:(Ⅰ)由题可知,选考方案确定的男生中确定选考生物的学生有8人,选考方案确定的女生中确定选考生物的学生有20人,则该学校高一年级选考方案确定的学生中选考生物的学生有39284060363628=⨯⨯人.……2分(Ⅱ)选历史 不选历史 总计 选考方案确定的男生 4 12 16 选考方案确定的女生 16 4 20 总计201636由列联表可得,828.1089.1010010891620162011163616201620)161244(362222>==⨯⨯⨯⨯⨯=⨯⨯⨯⨯-⨯⨯=K , 所以有99.9%把握认为选历史与性别有关. ……6分(Ⅲ)由数据可知,选考方案确定的男生中有8人选择物理、化学和生物;有4人选择物理、化学和历史;有2人选择物理、化学和地理;有2人选择物理、化学和政治. 由已知得的取值为0,1.)(或107)0(107)1(1)0(,103)1(21612121414181821622222428=++====-===+++==C C C C C C C P P P C C C C C P ξξξξ所以的分布列为 所以10310311070)(=⨯+⨯=ξE . ……12分 20.解:(1)设动点,由于轴于点又圆与直线22:0+=x y l 即022=+-y x 相切,ξ0 1P1071032222==∴r ,∴圆4:221=+y x C由题意,ON AM OM =+,得⎩⎨⎧==⎩⎨⎧=-=-∴=--+y y xx y y x x x x y y x x y x 2022)0,(),(),(0000000,即, 又点为圆上一动点,4422=+∴y x所以曲线的方程为1422=+y x . ……5分 (2)当PQ 的斜率不存在时,设直线OP 的方程为:x y 21=, 不妨取点)22,2(P ,则)22,2(-Q ,)0,2(T ,2=∴OT . 当PQ 的斜率存在时,设直线PQ 的方程为:m kx y +=,()()2211,,,y x Q y x P由⎩⎨⎧=++=4422y x m kx y 可得()044841222=-+++m kmx x k , 22212214144,418k m x x k km x x +-=+-=+∴.∵1214k k =-,∴042121=+x x y y . ()()()()0441324444144222222212122121=++--=++++=+++∴m km k m m x x km x x k x x m kx m kx化简得:21,412222≥∴+=m k m . ()()()016141644144642222222>=-+=-+-=∆m m k m k m k ,设()00,y x T ,则m k k km x x x 241422210-=+-=+=,mm kx y 2100=+=. )2,2143241422222022⎢⎣⎡∈-=+=+=∴m m m k y x OT ,⎪⎪⎭⎫⎢⎢⎣⎡∈∴222,OT .综上,OT 的取值范围为⎥⎦⎤⎢⎣⎡2,22. ……12分 21.解:(1)函数定义域为(,).-∞+∞2()22(1)2(22)(),g x x a x a x x a '=+--=+- 由()01,,g x x x a '=⇒=-=或①当1a <- 时,(,),()0,()(,)(,1),()0,()(,1)(1,),()0,()(1,)x a g x g x a x a g x g x a x g x g x '∈-∞>-∞'∈-<-'∈-+∞>-+∞在上为增函数,在上为减函数,在上为增函数.②当1a =-时,(,),()0,()(,)x g x g x '∈-∞+∞≥-∞+∞在上为增函数,③当1a >-时,(,1),()0,()(,1)(1,),()0,()(,1)(,),()0,()(,)x g x g x x a g x g x a x a g x g x a '∈-∞->-∞-'∈-<-'∈+∞>+∞在上为增函数,在上为减函数,在上为增函数.……5分(2)()()f x g x ≤⇔ ()()0g x f x -≥ ,设()()()F x g x f x =-则 )1(l n 12)1(221)(ln 12)(22a x x x a x a x xx x x x x F -+++=--+++++=')()(, 因为()0,x ∈+∞,令()'0F x =,得ln +10x x a +-=. 设()ln +1h x x x a =+-,由于()h x 在()0,+∞上单递增, 当0x →时, ()h x →-∞;当x →+∞时, ()h x →+∞, 所以存在唯一()00,x ∈+∞,使得()00h x =,即00l +1n a x x =+ . 当00x x <<时, ()'0F x <,所以()F x 在()00,x 上单调递减; 当0x x >时, ()'0F x >,所以()F x 在()0,x +∞上单调递增. 当()0,x ∈+∞时,()()()()23200000m i n2l n 13F x F x x x xxax =+=++--+ ()()()23200000000002ln ln ln 13x x x x x x x x x x b =+++---+++ 3200013x x x b =---+.因为()()f x g x ≤恒成立, 所以()32000min 103F x x x x b =---+≥,即 3200013b x x x ≥++. 32320000000112222ln 33b a x x x a x x x x -≥++-=---+ . 设()()32000012ln ,0,32x x x x x x ϕ=+-∈--+∞,则()()()23221322+22'21x x x x x x x x x x x xϕ-++--=+--==当01x <<时, ()'0x ϕ<,所以()x ϕ在()0,1上单调递减; 当1x >时, ()'0x ϕ>,所以()x ϕ在()1,+∞上单调递增. 当()0,x ∈+∞时, ()()min '12x ϕϕ==-. 所以当01x =,即3200000171+ln 2,33a x x b x x x =+==++=时,()min 523b a -=- (12)分22.解(1)已知曲线C 的标准方程为221124x y +=,P 的坐标为()2,0-, 将直线l 的参数方程22222x t y t⎧=-+⎪⎪⎨⎪=⎪⎩与曲线C 的标准方程221124x y +=联立, 得2240t t --=,则12||||||4PA PB t t ⋅==. ----------------5分(2)由曲线C 的标准方程为221124x y +=,可设曲线C 上的动点(23cos ,2sin )A θθ,则以A 为顶点的内接矩形周长为4(23cos 2sin )16sin()3πθθθ+=+,02πθ<<.因此该内接矩形周长的最大值为16,当且仅当6πθ=时等号成立.------------10分23.解(1)当1a =时,1x ≤- ()2,1,112,11,2,1,x x f x x x x x x -≤-⎧⎪=++-=-<<⎨⎪≥⎩当1x ≤-,22, 1.x x x x -≥-≤-当11x -<<,22,12x x x x -≥≤-≥或,舍去.当1x ≥,22, 3.x x x x -≥≥综上,原不等式的解集为{|13}x x x ≤-≥或 . ----------------5分(2)()1(1)1,,11(1)1,,(1)1,,a x a x a f x ax x a a x a x a a a x a x a ⎧-+-+≤-⎪⎪⎪=++-=-++-<<⎨⎪++-≥⎪⎪⎩当01a <≤时,2min ()()12,1f x f a a a ==+≥=; 当1a >时,min 11()()2,1f x f a a a a=-=+≥>;综上,[1,)a ∈+∞ . ----------------10分。
2019-2020学年郑州市第二中学高三英语二模试题及答案

2019-2020学年郑州市第二中学高三英语二模试题及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AWhat to See InHarbinParks inHarbin: Snow Sculpture Expo on theSunIslandPark: massive and beautifully carved sculptures of snow. Ice Lantern Festival: where large ice buildings and statues constructed with lights inside that make them glow.SiberianTigerPark: The park has several large caged areas where the tigers roam freely and live as they-would in their natural environment. We enter these caged areas in a specially designed van with large windows to get a look at these beautiful beasts. Live pheasants (雉) are let loose (if you pay) in order to show you the tigers' natural hunting skills.Russian Architecture: Blessed with grace and character, the city is famous for its unique, Russian-influenced architecture. Remnants (残存) from the days when Harbin wasan important stop on the Russian Manchurian Railroad, the dome-shaped structures remind people of pre-revolutionary Russia. The strong Russian flavor continues to impact the city today due to new trade and tourism betweenHarbinandRussia.TheCentral Avenue: Passers-by only street, a perfect remaining part of the busy international business activities at the turn of the 20th century. The 1.4-km long street is a worthy museum of European architectural styles, including Baroque and Byzantine facades, Jewish architectural wonders, little Russian bakeries, French fashion houses, American snack food outlets, and Japanese restaurants.Guogeli Avenue:Harbin's second biggest shopping district dotted with Russian buildings. A tram track is still preserved in the centre of the road. The street is named after Nikolay (Vasilyevich) Gogol (1809-1852); great Russian novelist, dramatist, satirist, founder of the so-called critical realism in Russian literature, best-known for his novel MERTVYE DUSHI I-II (1842, Dead Souls).Saint Sophia Church (built in 1903): The Orthodox church is a wonderful example of Russian Architecture. We only tour the outside of the church. The inside has been turned into some painters' market and is a big disappointment to all who visit it. You are welcome to venture into the church. Entrance fees are RMB20 per person.1. From where does the author look at the tigers?A. Through the windows of his house.B. In the closed areas of tigers.C. In the areas for walking.D. In their natural environment.2. Where can visitors see the most diverse styles of architecture?A. At Ice Lantern Festival.B. On the Russian Manchurian Railroad.C. On TheCentral Avenue.D. OnGuogeli Avenue.3. When walking in the city ofHarbin, what can visitors still strongly feel?A. The Russian flavor.B. The influence of Guogeli's realism.C. The damage to Saint Sophia Church.D. The mixture of American and Japanese cultures.BJanet Fein, aged 84, received her bachelor's degree from the University last week, having waited a long time for her chance to reach that goal.Growing up in the Bronx area ofNew York City, Fein worked at a dress manufacturer after graduating early at the age of 16. After getting married, she spent 18 years staying home with her children. She held several jobs through her life, including 20 years as a secretary at a hospital until her retirement at age 77.Fein has had a full life. But even then, she was not ready to take it easy and rest during a well-earned retirement. She decided to major in sociology because she felt it was “substantial.”Fein took part in a state program that lets people who are 65 and older take free classes at public universities in Texasand kept going to class even as her health conditions worsened. During her studies, it became necessary for her to use a walker to get around and she required oxygen. She also developed knee problems. So, Fein took online classes to finish the last part of her degree requirements.Sheila Rollerson, Fein' scollege advisor, and Carol, the professor told the media that Fein never showed signs of giving up even with all of her difficulties. She would speak up a lot in class and it just made for a more interesting class.Fein has also inspired Renee Brown, one of Fein's caregivers. At 53, Renee plans to begin nursing school to further her career. “Renee, you can do it. If I can do it you can do it, and you will feel so good about it,” Brown remembers what Fein told her.4. What is the second paragraph mainly about?A. Janet Fein's growthB. Janet Fein's aimC. Janet Fein's job experiencesD. Janet Fein's regrets5. What does the underlined phrase “substantial” in paragraph 3 refer to?A. InterestingB. ValuableC. EasyD. Affordable6. What can be learned about Fein according to the passage?A. Fein lived on little money after her retirement.B. Fein had a problem with her arms while at universities.C. The Internet played a role in Fein's university education.D. The good health helped Fein get her bachelor's degree.7. What is Janet Fein like according to the passage?A. Hardworking and humorous.B. Determined and generous.C. Positive and patient.D. Inspiring and perseverant.CWhen you say the word donkey, whatthings come to your mind? A few people might say they’re cute, but the majority think they’re stubborn, dumb and all-round less capable than their horse s.However, this wasn’t the case for a recently unearthed ancient Chinese noblewoman who was unexpectedly found buried with her donkeys. Published in the journal Antiquity in March, Chinese archaeologists (考古学家) first discovered the tomb in Xi’an, Shaanxi, in 2012. The team examined the remains and identified the body as Cui Shi, a Tang Dynasty high-born lady who died in 878 AD.Speaking to Science Magazine in 2012, the study’s co-author, Fiona Marshall, said the finding caused confusion as “donkeys … are not associated with high-status people”.However, following years of further research, the team discovered artworks and artifacts that showed a sport known as “Lvju”. This was similar to modern-day polo (马球)and was popular among noble (高贵的) women at the time. They preferred to use donkeys instead of full-sized horses for safety reasons, due to their smaller size and slower speed.Speaking to CNN, Marshall later said, “Historical documents also showed that ladies of the late Tang court loved to play donkey polo.”At that time in Chinese history, animals were often placed in tombs so that they could be used for a specific purpose in the afterlife. The study determined that Cui Shi likely requested that her beloved donkeys be buried with her, so that she could continue her favorite sport after death. In total, three donkeys were found inside her tomb with riding gear (装备), including stirrups (马镫). “This context provides evidence that the donkeys in her tomb were for polo, not transport,” lead author Hu Songmei of the Shaanxi Academy of Archaeology told Science Magazine.Before the study, it was believed that donkeys were only used to carry loads, but now it may be time to see them as a sign of achieving high social status(地位), well, in ancient times.8. What do most people think of donkeys, according to the text?A. They are as adorable(可爱的) as horses.B. They are stubborn and not so capable.C. They were necessary in ancient sports.D. They were a sign of high social status.9. Why did Fiona Marshall feel confused when she discovered the donkeys?A. She didn’t connect donkeys with nobles.B. She hadn’t seen donkeys in ancient tombs before.C. She didn’t expect to find donkeys in a woman’s tomb.D. She didn’t understand why animals were in human tombs.10. What do we know about the sport “Lvju” from the text?A. Horses were preferred in Lvju.B Lvju was similar to modern-day soccer.C. Lvju was popular among common people.D. Donkeys were preferred in the sport for safety.11. The donkeys were found in the tomb of Cui Shi probably because _______.A. she intended to use them for transport after deathB. her family didn’t want her to be lonely after deathC. she wanted to continue to play Lvju after deathD. noble women needed donkeys to maintain their dignityDMy friend and I went traveling inTasmania,Australialast December. We settled in our Airbnb accommodation, a cozy apartment, not long after we arrived inHobart, the capital city.After briefing us on the kitchen's facilities and the whereabouts of the bedroom and bathroom, our hostess Geraldine resumed her ironing work, which seemed to have been interrupted by our arrival.She was ironing what looked like security guard uniforms, and we soon found out that she worked in a local prison. And when she detected the curiosity in our tones, she offered a tour at the prison in her SUV. My friend and I exchanged a “this is incredible” look and said “yes” immediately.As we drove, she told us about the buildings that we were passing, the local market and how to get to MONA,Tasmania's well-known contemporary art gallery.And of course we got to hear some background information about the prison. According to our hostess, it currently holds Martin Bryant, a notorious criminal who cheated 35 people out of their property. We could see the high level of security from the layers upon layers of wires surrounding the gray structure inside.Getting to know a city in such a local way is something I would never be able to do by talking to a hotel receptionist, and this is what I like best about the apartment-sharing experience, not to mention the fact that it's usually cheaper than hotel rooms.But I'm fully aware of the risks of Airbnb, which is why I did my homework before booking online—I checked the reviews of the accommodation to avoid possible safety problems.That said, it is the mutual trust between a host and a guest that fascinates me—the interesting feeling of building a bond with a total stranger.12. Why did the hostess drive us to the prison?A. She planned to send the uniform to the prison.B. She found our curiosity about the prison.C. She wanted to show off her SUV.D. She needed to offer a tour for us.13. Which of the following can best explain the word “notorious” in Paragraph 5?A. Unfamiliar to everyone.B. Particularly disappointing.C. Well known for being bad.D. Extremely generous to others.14. Compared with hotels, what is the writer's favorite of the Airbnb accommodation?A. It is cheaper in most cases.B. It supplies a better living condition.C. It offers a much safer accommodation.D. It provides a chance to know local culture.15. What does the author think of finding accommodation on Airbnb?A. Disapproving.B. Supportive.C. Neutral.D. Doubtful.第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年郑州第五中学高三语文二模试题及答案解析

2019-2020学年郑州第五中学高三语文二模试题及答案解析一、现代文阅读(36分)(一)现代文阅读I(9分)阅读下面的文字,完成下列小题。
老爱情苏童我这里说的爱情故事也许会让一些读者失望,但是当我说完这个故事后,相信也有一些读者会受到一丝震动。
话说20世纪70年代,我们香椿树街有一对老夫妇,当时是六七十岁的样子,妻子身材高挑,白皮肤,大眼睛,看得出来年轻的时候是个美人;丈夫虽然长得不丑,但是一个矮子。
他们出现在街上,乍一看,不配,仔细一看,却是天造地设的一对。
为什么这么说呢?这对老夫妻彼此之间是镜子,除了性别不同,他们的眼神相似,表情相似,甚至两人脸上的黑痣,一个在左脸颊,一个在右脸颊,也是配合得天衣无缝。
他们到煤店买煤,一只箩筐,一根扁担,丈夫在前面,妻子在后面,这与别人家夫妇扛煤的位置不同,没有办法,不是他们别出心栽,是因为那丈夫矮、力气小,做妻子的反串了男角。
他们有个女儿,嫁出去了。
女儿把自己的孩子丢在父母那里,也不知是为了父母,还是为了自己。
她自己大概一个星期回一次娘家。
这是一个星期天的下午,女儿在外面“嘭嘭嘭”敲门,里面立即响起一阵杂番的脚步声,老夫妇同时出现在门边,两张苍老而欢乐的笑脸,笑起来两个人的嘴角居然都向右边歪着。
但女儿回家不是来向父母微笑的,她的任务似乎是为埋怨和教训她的双亲。
她高声地列举出父母所干的糊涂事,包括拖把在地板上留下太多的积水,包括他们对孩子的溺爱,给他吃太多,穿得也太多。
她一边喝着老人给她做的红枣汤,一边说:“唉,对你们说了多少遍也没用,我看你们是老糊涂了。
”老夫妻一听,忙走过去给外孙脱去多余的衣服,他们面带愧色,不敢争辩,似乎默认这么一个事实:他们是老了,是有点老糊涂了。
过一会儿,那老妇人给女儿收拾着汤碗,突然捂着胸口,猝然倒了下来,死了,据说死因是心肌梗塞。
死者人缘好,邻居们听说了都去吊唁。
他们看见平日不太孝顺的女儿这会儿哭成了泪人儿了,都不觉得奇怪,这么好的母亲死了,她不哭才奇怪呢!他们奇怪的是那老头,他面无表情,坐在亡妻的身边,看上去很平静。
郑州市2019年高三第二次模拟考试 英语试题
郑州市2019年高三第二次模拟考试英语试题注意事项:1.答卷前,考生务必将自己的姓名、考生号等填写在答题卡和试卷指定位置上。
2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What will the woman probably do next?A.Relax in the backyard.B.Make some coffee.C.Wash clothes.2.How did the man get here?A.By subway.B.By train.C.By car.3.What time is it now?A.6:00 pm.B.6:30 pm.C.7:00 pm.4.What was the woman’s problem?A.She lost her train ticket.B.She took the wrong train.C.She forgot her seat number.5.What does the man mean?A.He handles his work with ease.B.He is fully occupied with his work.C.He can’t describe his duty at work.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
2019届河南省郑州市高三第二次质量检测数学(文)试题(解析版)
先根据实数x,y满足的条件画出可行域,如图阴影部分:(含边界)
由 的几何意义是可行域内任意一点P与坐标原点连线的斜率,
观察图形可知,当点P在点A处 取最小值,由 解得A(-1,3)
∴最小值为-3,
当点P在点B处 取最大值,由 解得B(-2, ),
∴最大值为 ,
故 的取值范围是 .
故答案为: .
A. B. C. D.
【答案】D
【解析】分离常数法化简f(x),根据新定义即可求得函数y=[f(x)]的值域.
【详解】
,又 >0,∴ ,∴
∴当x∈(1,2)时,y=[f(x)]=1;
当x∈[2, )时,y=[f(x)]=2.
∴函数y=[f(x)]的值域是{1,2}.
故选D.
【点睛】
本题考查了新定义的理解和应用,考查了分离常数法求一次分式函数的值域,是中档题.
∴2a=b且2b=1-a,解得a= ,b=
∴z i.则 ,
故选:C.
【点睛】
本题考查了复数的模的定义与复数的乘法运算问题,考查了复数相等的概念,是基础题.
3.南宋数学家秦九韶在《数书九章》中提出的秦九韶算法至今仍是多项式求值比较先进的算法,已知 ,程序框图设计的是求 的值,在 处应填的执行语句是()
A. B. C. D.
【答案】B
【解析】由题意设向量 , 的夹角为 ,将 平方运算可得 =120°,再将 平方运算可得关于k的一元二次不等式,利用 <0,求解范围即可.
【详解】
设向量 , 的夹角为 , , , ,
则 = =1+4-2 =7,
∴ ,∴ =120°,∴ ,
又 ∴ ,即 = 对于任意实数 恒成立,∴ 对于任意实数 恒成立,
2019-2020年河南省郑州市二模:郑州市2019届高三第二次模拟考试理综化学试题-附答案精品
路漫漫其修远兮,吾将上下而求索!2019-2020年备考河南省郑州市2019届第二次模拟考试理科综合化学试题注意事项:1.答题前,考生务必用0.5毫米黑色签字笔将自己的姓名、座号、考生号、县区和科类填写到答题卡和试卷规定的位置上。
2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案标号。
写在本试卷上无效。
3.必须用0.5毫米黑色签字笔作答,答案必须写在答题卡各题目指定区域内相应的位置;如需改动,先划掉原来的答案,然后再写上新的答案;不能使用涂改液、胶带纸、修正带。
不按以上要求作答的答案无效。
可能用到的相对原子质量: H 1 C 12 N 14 O 16 Na 23 S 32 Cl 35.5K 39 Fe 56 Cu 647.港珠澳大桥水泥的使用量约198万吨。
水泥熟料的主要成分为CaO、SiO2,并含有一定量的铁、铝和镁等金属的氧化物。
实验室测定水泥样品中钙含量的过程如图所示:下列叙述正确的是A.水泥、玻璃、陶瓷为传统的硅酸盐材料,三者的原料都主要为SiO2B.沉淀A主要成分为SiO2,沉淀B为Fe(OH)3、Al(OH)3C.为了加快溶解速率,使用盐酸代替硫酸处理草酸钙D.草酸钙易溶于水8.化学与生活密切相关,下列有关物质与用途的因果关系错误..的是A. Fe(OH)3胶体具有较强的吸附性,所以可用于制备红色颜料铁红B. NaClO溶液具有强氧化性,所以可用于生活环境的消毒C. NH4Cl溶液呈酸性,所以可用于除去钢板上的铁锈D. KMnO4溶液可以氧化乙烯,所以可用浸泡过KMnO4溶液的硅藻土作水果保鲜剂9.若N A代表阿伏伽德罗常数的值,下列说法正确的是A. 常温常压下,18g的D2O含有的中子数、电子数均为10N AB. 1.0 mol/L的FeCl3溶液中Fe3+的个数小于N AC. 标准状况下,2.24 L甲醛中碳氢键的数目为0.2N AD. 密闭容器中,加入2molHI,发生反应:2HI(g) H2(g)+I2(g),达到平衡后气体分子总数小于2N A10. 用下列装置完成相关实验,合理的是图①图②图③图④A.图①:验证H2CO3酸性强于H2SiO3 B.图②:收集CO2或NH3 C.图③:分离Na2CO3溶液与CH3COOC2H5 D.图④:分离CH3CH2OH 与CH3COOH11. 有关苹果酸的说法正确的是A.苹果酸中能发生酯化反应的官能团有2种B.1 mol苹果酸可与3 mol NaOH发生反应C.1 mol苹果酸与足量金属Na反应生成1 mol H2D.苹果酸与互为同分异构体12.短周期元素X、Y、Z、M的原子序数依次增大,其中X、Y、Z 三种元素。
河南省郑州市2019届高三语文第二次质量检测试题(含解析)
1拿到试卷:熟悉试卷刚拿到试卷一般心情比较紧张,建议拿到卷子以后看看考卷一共几页,有多少道题,了解试卷结构,通览全卷是克服“前面难题做不出,后面易题没时间做”的有效措施,也从根本上防止了“漏做题”。
2答题顺序:从卷首依次开始一般来讲,全卷大致是先易后难的排列。
所以,正确的做法是从卷首开始依次做题,先易后难,最后攻坚。
但也不是坚决地“依次”做题,虽然考卷大致是先易后难,但试卷前部特别是中间出现难题也是常见的,执着程度适当,才能绕过难题,先做好有保证的题,才能尽量多得分。
3答题策略答题策略一共有三点: 1. 先易后难、先熟后生。
先做简单的、熟悉的题,再做综合题、难题。
2. 先小后大。
先做容易拿分的小题,再做耗时又复杂的大题。
3. 先局部后整体。
把疑难问题划分成一系列的步骤,一步一步的解决,每解决一步就能得到一步的分数。
4学会分段得分。
不会做的题会做的题目要特别注意表达准确、书写规范、语言科学,防止被“分段扣点分”目我们可以先承认中间结论,往后推,看能否得到结论。
如果不能,说明这个途径不对,。
如果题目立即改变方向;如果能得出预期结论,就回过头来,集中力量攻克这一“卡壳处”有多个问题,也可以跳步作答,先回答自己会的问题。
5立足中下题目,力争高水平考试时,因为时间和个别题目的难度,多数学生很难做完、做对全部题目,所以在答卷中要立足中下题目。
中下题目通常占全卷的80%以上,是试题的主要构成,学生能拿下这些题目,实际上就是有了胜利在握的心理,对攻克高档题会更放得开。
6确保运算正确,立足一次性成功在答卷时,要在以快为上的前提下,稳扎稳打,步步准确,尽量一次性成功。
不能为追求速度而丢掉准确度,甚至丢掉重要的得分步骤。
试题做完后要认真做好解后检查,看是否有空题,答卷是否准确,格式是否规范。
7要学会“挤”分考试试题大多分步给分,所以理科要把主要方程式和计算结果写在显要位置,文科尽量把要点写清晰,作文尤其要注意开头和结尾。