第三套湖北高二上学期期末试卷
湖北省部分重点中学高二上学期期末考试试题(9科10份,P
2015-2016学年度上学期高二期末考试英语试卷答案听力1-5 CBACA 6-10 BCABB 11-15 ACCAA 16-20 BABCB阅读理解21-24 ACBD 25-28 DDBA 29-32 BADC 33-35 BCA 36-40 GFACE完形填空31-35 BCADC 36-40 CADBD 41-45 CABAD 46-50 ABCBC语法填空61. written 62. provides 63. to express 64.Really 65. from 66. yourself / yourselves 67. a 68. that 69. definition 70. but短文改错71. go—goes 72. took—taken 73. that—which 74. same前加the 75.去was 76. role—roles 77. But—And 78. back—off 79. much—many 80. challenged—challenging书面表达With the Winter Holiday approaching, I want to make a travel plan for the whole family. It’s what we learned in the English book that makes me interested in Hong Kong.My parents and I are setting out by plane on February 21st. Then, after a good rest, we will visit the famous Disneyland, which attracts tourists from all over the world. I hope to get into the magical world to travel through space, visit a pirate ship and meet my favorite cartoon characters. For the third day, we will go to Ocean Park by bus. There are hundreds of animals, among which my mother and I like dolphins best. We are eager to see their performance as well as learn something about protecting endangered species. Besides, we can enjoy the local food and go shopping on the fourth day. On the evening of February 24th, we are going home by air.It must be a wonderful trip, to which we are looking forward.。
高二上学期期末考试试卷试题1 2(共18页)
三中2021-2021学年(xuénián)度高二语文上学期期末考试试卷本套试卷分为选择题和非选择题两局部,选择题 1至10题,非选择题11至21题。
全卷满分是150分,考试时间是是150分钟。
一、〔18分,每一小题3分〕1、以下括号中读音全都正确的一项是哪一项A、溺〔nì〕水濒〔bīn〕临数见不鲜〔xiǎn〕大煞(shà)风景B、瑰〔guǐ〕怪嗜〔shì〕好怏〔yàng〕怏不乐威名显赫〔hè〕C、禅〔shàn〕让虔〔qián〕诚吹毛求疵〔cī〕性情怪癖〔pǐ〕D、宫阙〔què〕恬〔tián〕淡熠〔yì〕熠生辉畸〔qí〕形外表2、以下字形全都正确的一项是哪一项A、飓风睿智顶顶大名愤世嫉俗B、琐碎编篡直截了当才华卓著C、瑕疵敷衍朝三暮四心悦臣服D、罪孽国粹芸芸众生怨天尤人3、以下加点的词语错误的一项是哪一项A、研究者不愿抒发感情,只是铁板着脸,一钻几十年,文献。
..B、统治者厘定..规那么:怎样纳粮,怎样磕头,怎样颂圣。
C、好习惯已经到了根深蒂固....的程度,就没有什么好担忧的了。
D、三十年的HY开放(kāifàng),使国家天下太平....,人民幸福。
4、以下句子没有语病的一项是哪一项A、为什么对于这种浪费人才的现象,至今没有引起有关部门的重视呢?B、孩子的教育问题,是一个复杂的过程,它远不是一两句话就能奏效的。
C、搞好学习,取决于有没有一个勤奋认真学习的态度。
D、她是国家队的一位有20多年教学经历的优秀的篮球女教练。
5、依次填入以下各句横线处的虚词,最恰当的一组是①比尔从他父母处可以得到一些资助作为建立公司的启动资金,但是他并不想这样向父母开口讨钱。
②当然,干这样一番非凡的慈善事业,在微软和盖茨创造了惊人的财富之后成为可能。
③没有做到这一点,人们不可能将你从?财富?或者?福布斯?杂志的世界富豪排行榜拉下来,却有可能从心里的排行榜上将你除名。
湖北省部分重点中学高二上学期期末考试试题(9科10份,P
湖北省部分重点中学2015-2016学年度上学期高一期中考试数学试卷答案(理科)13、4 14、 15、 16、 2317、(本题10分)解:|1|221231m m x +≤⇒-≤+≤⇒-≤≤即命题有实数根2(2)40m ⇒∆=--≥,即 …………………………5分因为为假命题,为假命题则为真命题,所以为假命题,为真命题,: 由311111x m m -≤≤⎧⇒-<<⎨-<<⎩即的取值范围是: …………………………10分18.(1)解:依题意有:这组数据的中位数是7,即,故的展开式中17237177()()(1)r r r r r r r T C x x C x ---+=-=-,由可知,故展开式中的项的系数为 .......6分(2)的展开式中共8项,其中第4项和第5项的二项式系数最大,而第5项的系数等于第5项二项式系数,故第5项的系数最大,即最大项为()()5423147535x x x C T =-=-,第4项的系数等于第4项二项式系数的相反数,故第4项的系数最小,即最小项为()()2324137435x x x C T -=-=- .......12分19、解析:(I)2221124c a b e a a -==⇒=……① 矩形ABCD 面积为,即……②由①②解得:,∴椭圆M 的标准方程是.………………………………6分(Ⅱ)设则0002,02x x y y +⎧=⎪⎪⎨+⎪=⎪⎩ 222200(2)(2)1,116121612x y x y +=∴+=又 所以点Q 的轨迹方程为………………………………12分21. 解: (1),…… 2分= 0×5+1×7+2×8+3×11+4×19=132,=222220123430++++=…… 4分1221ˆˆˆ 3.6n i ii n i i x y nx y b ay bx x nx==-∴==-=-∑∑=3.2, …… 6分 故y 关于x 的线性回归方程为=3.2x+3.6 …… 8分(2)当x=5时, =3.2*5+3.6即=19.6 …… 10分据此估计2016年该城市人口总数约为196万. …… 12分21.解:(1)设“从这12人中随机抽取2人,这2人恰好来自同一班级”的事件为M 则2222323421213()66C C C C P M C +++==. ....................5分 答:从这12人中随机抽取2人,这2人恰好来自同一班级的概率是1366. (2)0123ξ=、、、由题设知,每个人选软件C 概率均为23. ∴311(0)()327P ξ===, 123122(1)()339P C ξ==⋅=, 223124(2)()339P C ξ==⋅⋅=, 328(3)()327P ξ===. ..............................9分的分布列如下的期望是124801232279927E ξ=⨯+⨯+⨯+⨯=. ..........12分22、(Ⅰ)因为, ,所以.因为原点到直线:的距离,解得,.故所求椭圆的方程为. ……………………4分(Ⅱ)因为点关于直线的对称点为,所以 010*******,2.22y y x x y y x x -⎧⨯=-⎪-⎪⎨++⎪=⨯⎪⎩ 解得,.所以.因为点在椭圆:上,所以2222201100344x x y x y +=+=+. 因为, 所以.所以的取值范围为. …8分(Ⅲ)由题意221,1164y kx x y =+⎧⎪⎨+=⎪⎩消去,整理得22(14)8120k x kx ++-=.可知. 设, ,的中点是,则2324214M x x k x k +-==+,21114M M y kx k =+=+. 所以. 所以.即 224201414k k k k k-++=++. 又因为, 所以.所以 ................................................12分。
湖北省高二上学期化学期末考试试卷
湖北省高二上学期化学期末考试试卷姓名:________ 班级:________ 成绩:________一、单选题 (共16题;共32分)1. (2分) (2016高三上·成都期中) 室温下,用0.100mol•L﹣1 NaOH溶液分别滴定20.00mL 0.100mol•L ﹣1的盐酸和醋酸,滴定曲线如图所示.下列说法正确的是()A . Ⅱ表示的是滴定醋酸的曲线B . pH=7时,滴定醋酸消耗的V(NaOH)小于20mLC . V(NaOH)=20.00mL时,两份溶液中c(Cl﹣)=c(CH3COO﹣)D . V(NaOH)=10.00mL时,醋酸溶液中c(Na+)>c(CH3COO﹣)>c(H+)>c(OH﹣)2. (2分) (2018高二上·江苏期末) 通过以下反应均可获取CO。
下列有关说法正确的是()①木炭不完全燃烧制CO:2C(s)+O2(g)=2CO(g) ΔH1=-221kJ·mol-1②木炭还原CO2制CO:C(s) +CO2(g)=2CO(g) ΔH 2 =+172.5 kJ·mol-1③焦炭还原Fe2O3制CO:Fe2O3(s) + 3C(s) 2Fe(s) + 3CO(g) ΔH 3=+489.0kJ·mol-1A . 反应①中化学能全部转化为热能B . 反应②为吸热反应,在任何情况下都不能自发进行C . 反应③中使用催化剂或移走部分CO,均可提高Fe2O3的转化率D . 反应Fe2O3(s)+ 3CO(g)=2Fe(s)+ 3CO2(g) ΔH=-28.5 kJ·mol-13. (2分)已知室温时0.1mo1/L某一元酸HA在水中有0.1%发生电离,叙述错误的是:A . 该溶液的pH=4B . 升高温度,溶液的KW增大C . 此酸的电离平衡常数约为1×10-7D . 该溶液里不存在HA分子4. (2分) (2018高二上·许昌期中) 常温下,等体积的酸溶液和碱溶液混合后pH一定等于7的是()A . pH=3的盐酸和pH=11的KOH溶液B . pH=3的硝酸和pH=11的氨水C . pH=3的硫酸和pH=13的NaOH溶液D . pH=3的醋酸和pH=11的KOH溶液5. (2分) (2017高二上·新疆期末) 升高温度,下列数据不一定增大的是()A . 化学反应速率vB . 化学平衡常数KC . 水的离子积常数KwD . 弱酸的电离常数Ka6. (2分) (2018高一下·江苏期末) 下列陈述Ⅰ、Ⅱ正确并且有因果关系的是()A . AB . BC . CD . D7. (2分) (2015高二上·望城期末) 已知:Ksp(AgCl)=1.8×10﹣10;Ksp(Ag2S)=6.3×10﹣50 .向盛0.1mol/L AgNO3溶液的试管中滴加0.1mol/L Na2S溶液至沉淀完全,再滴加足量NaCl溶液,产生的现象或生成的物质是()A . 黑色沉淀完全转化为白色沉淀B . 既有氯化银也有硫化银C . 只产生黑色硫化银沉淀D . 只有氯化银白色沉淀8. (2分)下列化学实验事实及其解释或结论都正确的是()A . 取少量溶液X,向其中加入适量新制氯水,再加几滴KSCN溶液,溶液变红,说明X溶液中一定含有Fe2+B . 用乙醇、冰醋酸及pH=0的H2SO4加热可制乙酸乙酯,用饱和的Na2CO3溶液可以洗去其中含有的乙醇和乙酸,说明乙酸乙酯在Na2CO3溶液中的溶解度很小C . 向浓度均为0.1mol•L﹣1的MgCl2、CuCl2混合溶液中逐滴加入氨水,首先生成蓝色沉淀,说明Ksp[Cu(OH)2]>Ksp[Mg(OH)2]D . 配制0.10mol/L NaCl溶液,俯视容量瓶的刻度线定容,所配溶液浓度偏大9. (2分)下列根据实验操作和现象所得出的结论正确的是()D向含H2SO4的淀粉水解液中加入新制的Cu(OH)2 ,煮沸没有砖红色沉淀淀粉未水解A . AB . BC . CD . D10. (2分)(2018·西宁模拟) 使用新型电极材料,以N2、H2为电极反应物,以溶有M的稀盐酸为电解质溶液,制成新型燃料电池,装置如图所示。
湖北省部分重点中学高二上学期期末考试(语文)
湖北省部分重点中学高二上学期期末考试(语文)试卷说明:湖北省部分重点中学—学年度上学期高二期末考试语文试卷命题人:武汉四中张明胜审题人:武汉中学陈碧玉一、语文基础知识(共15分,每小题3分)1.下列各组中加点字读音全都正确的一项是()A.绣衾(qīn)啮齿(niè)圈养(quān)哥哥行(háng)B.?火(wēn)车辇(niǎn) 古冢(zhǒng)鲈鱼堪脍(kuài)C.挑剔(tī )扳连(lěi)楔子(xiē)汗涔涔(cén)D.馥郁(fù)瞅见(qiǔ)蹩进(bié)黑??(xū )2.下列各组词语中,书写无误的一项是()A.踊跃拥上街头截流开源节流B.行迹形迹可疑抱怨以德抱怨C.摧藏摧人泪下厮打撕心裂肺D.罪愆繁衍生息清秀山清水秀3.下列各句中加点的词语,使用恰当的一句是()A.母女俩沿着杏树阴暗暗地走进小镇,尽量不去惊扰别人的午睡。
她们径自朝神父家走去。
B.传统小说家竭力把人物刻画得像一个现实生活中的真人,卡夫卡则心不在焉地将K打发成了一个无足轻重的符号。
C.海明威有着极具丰富的人生经历,他的一生都在历险,他是一个名副其实的“硬汉”,我们这些温室里的花朵只能望其项背。
D.素芭的这种语言琳琅满目,从蟋蟀鸣叫的草地到星空无言的世界,只有手势、表情、音乐、哭泣和叹息,充盈在那广阔的语言世界。
4. 下列句子中没有语病的一项是:()A.《炼金术士》是一部以事件辅佐人物成长的小说,它讲述的是西班牙少年圣地亚哥梦见在埃及金字塔附近埋着一批宝藏,在吉卜赛老妇人和撒冷之王麦基洗德的引导下踏上寻梦之旅和抵达梦想。
B.“迷惘的一代”这个称呼的来历,出自于侨居巴黎的美国老一辈女作家格特鲁德?斯坦因之口。
C.中国拥有航母之后,更具大国“气质和形象”,特别是在当前和今后一个时期内,中国与周边国家还存在海洋领土主权争端,无疑增大中国有效解决问题的筹码和力度。
湖北省高二上册期末数学文科试题与答案
湖北省高二上册期末数学文科试题与答案一、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.用秦九韶算法求多项式当时的值,有如下说法:①要用到6次乘法;②要用到6次加法和15次乘法;③v3=12;④v0=11.其中说法正确的是A. ①③B. ①④C. ②④D. ①③④【答案】A根据秦九韶算法求多项式的规则变化其形式,把等到价转化为,就能求出结果.解:需做加法与乘法的次数都是6次,,,,,的值为12;其中正确的是①④故选:A.本题考查算法的多样性,正确理解秦九韶算法求多项式的原理是解题的关键,属于基础题.2.把[0,1]内的均匀随机数x分别转化为[0,2]和内的均匀随机数y1,y2,需实施的变换分别为( )A. ,B. ,C. ,D. ,【答案】C先看区间长度之间的关系:故可设或,再用区间中点之间的对应关系得到,解出,问题得以解决.解:将[0,1]内的随机数x转化为[0,2]内的均匀随机数,区间长度变为原来的2倍,因此设=2x+(是常数),再用两个区间中点的对应值,得当时,=1,所以,可得=0,因此x与的关系为:=2x;将[0,1]内的随机数x转化为[-2,1]内的均匀随机数,区间长度变为原来的2倍,因此设=3x+(是常数),再用两个区间中点的对应值,得当时,=,所以,可得,因此x与的关系为:=3x-2;故选C.本题考查均匀随机数的含义与应用,属于基础题.解决本题解题的关键是理解均匀随机数的定义,以及两个均匀随机数之间的线性关系.3.抛物线的准线方程是,则的值为()A. B. C. 8 D. -8【答案】B方程表示的是抛物线,,,抛物线的准线方程是,解得,故选A.4.执行如图所示的程序框图,若输出n的值为9,则判断框中可填入( )A. B. C. D.【答案】D执行程序框图,根据输出,可计算的值,由此得出判断框中应填入的条件.解:执行程序框图,可得该程序运行后是计算,满足条件后,输出,由此得出判断框中的横线上可以填入?.故选:D.本题主要考查了程序框图的应用问题,正确判断退出循环的条件是解题的关键,属于基础题.5.将二进制数110 101(2)转化为十进制数为( )A. 106B. 53C. 55D. 108【答案】B由题意可得110101(2)=1×25+1×24+0×23+1×22+0×21+1×20=53.选B。
2020-2021学年湖北省高二(上)期末数学试卷(附答案详解)
2020-2021学年湖北省高二(上)期末数学试卷一、单选题(本大题共8小题,共40.0分)1.若直线l的斜率为−√3,则直线l的倾斜角为()A. 30°B. 60°C. 120°D. 150°2.若等差数列{a n}满足a1+a3=4,a5+a7=−4,则等差数列{a n}的公差d=()A. 2B. 1C. 0D. −13.已知a=20.3,b=0.32,c=log0.32,则()A. b<c<aB. b<a<cC. c<a<bD. c<b<a4.将全班50名同学排成一列,则甲在乙的前面,且丙在乙的后面的概率是()A. 12B. 16C. 13D. 3505.已知数列{a n}的前n项和为S n,若3S n=2a n−1,则a1a3a5=()A. 8B. −8C. 64D. −646.1766年,德国有一位名叫提丢斯的中学数学老师,把数列0,3,6,12,24,48,96,……经过一定的规律变化,得到新数列:0.4,0.7,1,1.6,2.8,5.2,10,……,科学家发现,新数列的各项恰好为太阳系行星与太阳的平均距离,并据此发现了“天王星”、“谷神星”等行星,这个新数列就是著名的“提丢斯−波得定则”.根据规律,新数列的第8项为()A. 14.8B. 19.2C. 19.6D. 20.47.已知抛物线C:x2=2py(p>0)的焦点是F,A,B,D是抛物线C上的点.若△ABD的重心是点(2,3),且|AF|+|BF|+|DF|=15,则p=()A. 4B. 6C. 8D. 128.已知圆M:x2+y2+2x=0,点P是曲线C:y=1x+1(x>−1)上的动点,过点P 作圆M的切线PA,PB,切点为A,B,当四边形PAMB的面积最小时,线段AB 的长为()A. √2B. √3C. 12D. 1二、多选题(本大题共4小题,共20.0分)9.已知直线l:x−ay+1=0(a∈R),则下列说法正确的是()A. 直线l过定点(−1,0)B. 直线l一定不与坐标轴垂直C. 直线l与直线l′:−x+ay+m=0(m∈R)一定平行D. 直线l与直线l′:ax+y+m=0(m∈R)一定垂直10.已知正数x,y满足x+y=2,则下列结论正确的是()A. xy的最大值是1B. 1x +1y的最小值是2C. x2+y2的最小值是4D. 1x +4y的最小值是9211.已知函数f(x)=|√3sin(2x−π6)|,则下列结论正确的是()A. 函数f(x)的最小正周期为πB. 函数f(x)的最大值为√3C. 函数f(x)的图象关于点(π12,0)对称D. 函数f(x)的图象关于直线x=7π12对称12.设数列{a n}、{b n}的前n项和分别为S n、T n,S1=1,S n+1=n+2n S n,且b n=a n+12a n a n+2,则下列结论正确的是()A. a2020=2020B. S n=n(n+1)2C. b n=1−1n(n+2)D. 13≤T n−n<34三、单空题(本大题共4小题,共20.0分)13.已知向量a⃗=(1,−1),b⃗ =(−2,t),若a⃗//b⃗ ,则a⃗⋅b⃗ =______ .14.若方程x2+y2+2ax−2√5y+12a−15=0表示圆,则实数a的取值范围是______ .15.已知双曲线C:x2a2−y2b2=1(a>0,b>0)的离心率为e,直线l:y=x与双曲线C交于M,N两点,若|MN|=√2b,则e的值是______ .16.如图,正二十面体是由20个等边三角形组成的正多面体,共有12个顶点,30条棱,20个面,是五个柏拉图多面体之一.如果把sin36°按35计算,则棱长为6的正二十面体的外接球半径等于______ .四、解答题(本大题共6小题,共70.0分)17.①2bsinA=atanB;②a2+c2+bc−6b=2accosB;③sin2B−sin2C=sinB+sinC4,在这三个条件中任选一个,补充在下面问题中的横线上,并加以解答.在△ABC中,内角A,B,C的对边分别是a,b,c,若a=4,A=π6,且______,求△ABC的面积.18.已知正项数列{a n}的前n项和为S n.若a2=4,S n+1=S n+√a n+1+a n+√a n.(1)求证:数列{√a n}是等差数列;(2)设b n=a a,求数列{b n}的前n项和T n.19.已知α∈(0,π),a⃗=(−1,cos(π2−α)),b⃗ =(sin(3π2+α),1),且a⃗⋅b⃗ =15.(1)求sinα−cosα的值;(2)若β∈(π,2π),tan(α−β)=7,求β的值.20.已知直线l的斜率为−2,且与两坐标轴的正半轴围成的三角形的面积等于1.圆C的圆心在直线l上,且被x轴截得的弦长为4.(1)求直线l的方程;(2)若直线l′:x−2y−1=0与圆C相切,求圆C的方程.21.如图,在四棱锥S−ABCD中,平面SAD⊥平面ABCD,∠ASD=∠ADC=∠BCD=90°,AD.SA=SD且BC=DC=12(1)求证:SC⊥BD;(2)若点M是线段SD的中点,求二面角M−AB−D的余弦值.22.设曲线C:mx2+ny2=1(m>0,n>0)过M(2,3),N(2√2,√6)两点,直线l:y=k(x−2)与曲线C交于P,Q两点,与直线x=8交于点R.(1)求曲线C的方程;(2)记直线MP,MQ,MR的斜率分别为k1,k2,k3,求证:k1+k2=λk3,其中λ为定值.答案和解析1.【答案】C【解析】解:设直线l的倾斜角为α(0≤α<π),∵l的斜率为−√3,∴tanα=−√3,又∵0≤α<π,∴α=120°;故选:C.由直线l的倾斜角α与斜率k的关系:当α≠90°时,斜率k=tanα,当α=90°时,斜率k不存在,求出α的范围.本题考查了利用直线的斜率求倾斜角的问题,是基础题.2.【答案】D【解析】解:∵等差数列{a n}满足a1+a3=4,a5+a7=−4,∴(a5+a7)−(a1+a3)=(a1+a3+8d)−(a1+a3)=8d=−8,解得d=−1.故选:D.利用等差数列通项公式直接求解.本题考查等差数列的公差的求法,考查等差数列的性质等基础知识,考查运算求解能力,是基础题.3.【答案】D【解析】【分析】本题考查三个数的大小的判断,考查对数函数、指数函数的单调性等基础知识,考查运算求解能力,是基础题.利用对数函数、指数函数的单调性直接求解.【解答】解:∵a=20.3>20=1,0<b=0.32<0.30=1,c=log0.32<log0.31=0,∴c<b<a.故选:D.4.【答案】B【解析】解:可以不考虑其他人,则甲、乙、丙三人的不同排法有:(甲,乙,丙),(甲,丙,乙),(乙,丙,甲),(乙,甲,丙),(丙,甲,乙),(丙,乙,甲),共6种,其中甲在乙的前面,且丙在乙的后面的排法只有1种,.故甲在乙的前面,且丙在乙的后面的概率是p=16故选:B.可以不考虑其他人,利用列举法求出甲、乙、丙三人的不同排法有6种,其中甲在乙的前面,且丙在乙的后面的排法只有1种,由此能求出甲在乙的前面,且丙在乙的后面的概率.本题考查概率的求法,考查古典概型、列举法等基础知识,考查运算求解能力,是基础题.5.【答案】D【解析】解:当n=1时,3S1=3a1=2a1−1,解得a1=−1,当n≥2时,3S n=2a n−1,3S n−1=2a n−1−1,=−2,两式相减得3a n=2a n−2a n−1,即a na n−1∴a n=−(−2)n−1,a3=−4,a5=−16,∴a1a3a5=a33=−64,故选:D.利用数列的递推关系式求解首项,然后求解通项公式,即可求解a1a3a5.本题考查数列的递推关系式的应用,通项公式的求法,考查转化首项以及计算能力,是中档题.6.【答案】C【解析】解:观察两组数列0,3,6,12,24,48,96,……,0.4,0.7,1,1.6,2.8,5.2,10,……,发现规律是将原数列的每一项加4,再除以10,故第8项为(96×2+4)÷10=19.6.故选:C.利用两组数列,观察它们之间的关系,寻找到规律为将原数列的每一项加4,再除以10,求解即可.本题考查了推理的运用,解题的关键是寻找到两个数列之间的关系,属于基础题.7.【答案】A【解析】解:设A,B,D的坐标分别为(x1,y1),(x2,y2),(x3,y3),=3,由△ABD的重心是点(2,3)得y1+y2+y33p=15,解得p=4,由抛物线的定义可知|AF|+|BF|+|DF|=y1+y2+y3+32故选:A.设A,B,D的坐标分别为(x1,y1),(x2,y2),(x3,y3),利用重心坐标公式,结合抛物线的性质,求解p即可.本题考查抛物线的简单性质,三角形的重心坐标公式的应用,是基础题.8.【答案】A【解析】解:由x2+y2+2x=0,得(x+1)2+y2=1,则M(−1,0),半径为1,)(a>−1),则|PM|2=(a+1)2+设P(a,1a+11≥2,(a+1)2当且仅当(a+1)2=1,即a=0时上式取等号,∴S=|PA|⋅|AM|=|PA|=√|PM|2−|AM|2=√|PM|2−1≥1,四边形PAMB当且仅当|PM|=√2时取等号,此时P为(0,1),四边形PAMB是正方形,故|AB|=√2,故选:A.由题意画出图形,求出曲线C上的点到点M的最小值,写出四边形PAMB的面积,可知当四边形PAMB为正方形时,面积最小,由此求得线段AB的长.本题考查圆与圆锥曲线的综合,训练了利用基本不等式求最值,考查运算求解能力,是中档题.9.【答案】AD【解析】解:对于A:由于直线l:x−ay+1=0(a∈R),−1−a×0+1=0,故A 正确;对于B:当a=0时,直线l与x轴垂直,故B错误;对于C:当m=−1时,两直线重合,故C错误;对于D:因为1×a+1×(−a)=0,故直线l与直线l′一定垂直,故D正确.故选:AD.直接利用直线间的位置关系和直线平行和垂直的充要条件的应用判断A、B、C、D的结论.本题考查的知识要点:直线与直线的位置关系,直线平行的充要条件和垂直的充要条件的应用,主要考查学生的运算能力和转换能力及思维能力,属于基础题.10.【答案】ABD【解析】解:由x+y=2,得2≥2√xy,所以xy≤1(当且仅当x=y=1时取等号),故A正确;1 x +1y=x+yxy=2xy≥2(当且仅当x=y=1时取等号)故B正确;∵2(x2+y2)≥(x+y)2=4,∴x2+y2≥2(当且仅当x=y=1时取等号),故C错误;1 x +4y=12(1x+4y)(x+y)=12(5+yx+4xy)≥92(当且仅当x=23,y=43时取等号),故D正确.故选:ABD.由基本不等式及其结论分别检验各选项即可判断.本题主要考查了基本不等式及相关结论的应用,解题的关键是公式的灵活利用,属于基础题.11.【答案】BD【解析】解:由题意,将g(x)=√3sin(2x −π6)在x 轴下方的图象沿x 轴翻折(x 轴上方的图象不变),可以得到函数f(x)的图象,对于A :函数f(x)的最小正周期为:g(x)=√3sin(2x −π6)的周期的一半, 即函数g(x)的周期T =2π2=π的一半为π2,故A 错误;对于B :根据函数的性质,函数f(x)的最大值为√3,故B 正确;对于C :由于函数进行了翻折,函数f(x)的图象不是中心对称图形,故C 错误, 对于D :由于f(7π12)=0,得D 正确. 故选:BD .直接利用三角函数的性质和函数的关系式的应用判断A 、B 、C 、D 的结果.本题考查的知识要点:三角函数的关系式的变换,正弦型函数的性质的应用,主要考查学生的运算能力和转换能力及思维能力,属于基础题.12.【答案】ABD【解析】解:由题意得,S n+1S n=n+2n,∴当n ≥2时,S n =S nSn−1⋅S n−1S n−2…S 2S 1⋅S 1=n+1n−1⋅n n−2 (31)⋅1=n⋅(n+1)2,当且当n =1时也成立, ∴S n =n(n+1)2,易得a n =n , ∴a 2020=2020, 故A ,B 正确;∴b n =(n+1)2n(n+2)=1+1n(n+2)=1+12(1n −1n+2),∴T n =n +12(1−13+12−14+13−15+⋯+1n−1−1n+1+1n −1n+2)=n +12(1+12−1n+1−1n+2)=n +34−12(1n+1+1n+2)<n +34, 又T n −n 随着n 的增加而增加,∴T n −n ≥T 1−1=13,∴13≤T n −n <34,C 错误,D 正确,故选:ABD .直接利用叠乘法的应用求出数列的通项公式,进一步利用裂项相消法的应用求出数列的和,进一步判断A 、B 、C 、D 的结论.本题考查的知识要点:数列的递推关系式,叠乘法的应用,裂项相消法在求和中的应用,主要考查学生的运算能力和转换能力及思维能力,属于基础题.13.【答案】−4【解析】解:由向量a ⃗ =(1,−1),b ⃗ =(−2,t),a ⃗ //b ⃗ 得t =2, 故a ⃗ ⋅b ⃗ =1×(−2)+(−1)×2=−4. 故答案为:−4.通过向量平行,求解t ,然后求解向量的数量积即可.本题考查平面向量的数量积的应用,平行的共线添加的应用,是基础题.14.【答案】(−∞,2)∪(10,+∞)【解析】解:由题意得,a 2−12a +20>0, 解得a <2或a >10.则实数a 的取值范围是:(−∞,2)∪(10,+∞). 故答案是:(−∞,2)∪(10,+∞).利用圆的一般式方程,D 2+E 2−4F >0即可求出a 的范围. 本题考查圆的一般式方程的应用,不等式的解法,考查计算能力.15.【答案】√6【解析】解:不妨设点M(x,y)在第一象限,联立{x 2a 2−y 2b 2=1y =x ,得x 2=y 2=a 2b 2b −a ,又|MN|=√2b ,∴x2+y2=b22,则2a2b2b2−a2=b22,整理得b2=5a2,所以e=√1+b2a2=√6.故答案为:√6.联立直线与双曲线方程,求解|MN|,然后推出椭圆的离心率即可.本题考查双曲线的简单性质的应用,考查转化思想以及计算能力,是基础题.16.【答案】18√1111【解析】解:由图,正二十面体的外接球即为上方正五棱锥的外接球,设其半径为R,正五边形的外接圆半径为r,则3r =sin360=35,得r=5,所以正五棱锥的顶点到底面的距离是√36−25=√11,所以R2=25+(R−√11)2,解得R=18√1111.故答案为:18√1111.根据条件得到3r =sin360=35,得r=5,进而求得球半径即可.本题考查球的半径的求法,是中档题,解题时要认真审题,注意空间思维能力的培养.17.【答案】解:选择①:∵2bsinA=atanB,∴2bsinA=asinBcosB,由正弦定理可得2sinBsinA=sinAsinBcosB,∵sinA≠0,sinB≠0,∴cosB=12,∵B∈(0,π),∴B=π3,C=π2,∵asinA =bsinB,可得412=√32,解得b=4√3,∴S=12absinC=12×4×4√3×1=8√3.选择②:∵a2+c2+bc−6b=2accosB,∴a2+c2+bc−6b=2ac×a2+c2−b22ac,∴b+c=6,又∵a2=b2+c2−2bccosA,∴16=(b+c)2−2bc−√3bc,∴bc=20(2−√3),∴S=12bcsinA=12×20(2−√3)×12=5(2−√3).选择③:∵sin2B−sin2C=sinB+sinC4,∴sinB−sinC=14=12sinA,∴b−c=12a=2,又∵a2=b2+c2−2bccosA,∴16=(b−c)2+2bc−√3bc,∴bc=12(2+√3),∴S=12bcsinA=12×12(2+√3)×12=3(2+√3).【解析】选择①:利用同角三角函数基本关系式,正弦定理化简已知等式,结合sinA≠0,sinB≠0,可求cos B的值,结合B∈(0,π),可求B,C的值,利用正弦定理可求b的值,根据三角形的面积公式即可求解.选择②:由已知利用余弦定理可求bc的值,进而根据三角形的面积公式即可求解.选择③:利用正弦定理化简已知等式可得b−c=12a=2,进而根据余弦定理可求bc的值,根据三角形的面积公式即可计算得解.本题主要考查了同角三角函数基本关系式,正弦定理,三角形的面积公式,余弦定理在解三角形中的综合应用,考查了计算能力和转化思想,属于中档题.18.【答案】解:(1)由题意得,S n+1−S n=√a n+1+a n+√a n,则a n+1−a n=√a n+1+√a n,∴√a n+1−√a n=1,由√a2=2可得√a1=1,∴数列{√a n}是首项为1,公差为1的等差数列.(2)由(1)可得√a n=n,∴a n=n2,依题意,b n =a a =2n(n+1)=2(1n −1n+1), ∴T n =2(1−12+12−13+⋯+1n−1n+1)=2(1−1n+1)=2nn+1.【解析】(1)利用数列的递推关系式推出√a n+1−√a n =1,然后判断数列{√a n }是首项为1,公差为1的等差数列.(2)化简b n =a a =2(1n −1n+1),利用裂项消项法,求解数列的和即可.本题考查数列的递推关系式的应用,通项公式的求法,数列求和的方法,考查综合化思想以及计算能力,是中档题.19.【答案】解:(1)由题意得,a ⃗ =(−1,sinα),b ⃗ =(−cosα,1),∴a ⃗ ⋅b ⃗ =sinα+cosα=15,∴1+2sinαcosα=125, ∴2sinαcosα=−2425<0,∴(sinα−cosα)2=1−2sinαcosα=4925, 又∵α∈(0,π), ∴sinα>0,cosα<0, ∴sinα−cosα=75;(2)联立{sinα+cosα=15sinα−cosα=75,解得{sinα=45cosα=−35,∴tanα=sinαcosα=−43, ∴tan(α−β)=tanα−tanβ1+tanαtanβ=7,即−43−tanβ1−43tanβ=7,解得tanβ=1, 又∵β∈(π,2π), ∴β=5π4.【解析】(1)由已知条件求得a ⃗ 、b ⃗ ,然后代入a⃗ ⋅b ⃗ =15求得2sinαcosα=−2425<0,再利用完全平方公式求得(sinα−cosα)2=1−2sinαcosα=4925,结合角的取值范围对所求的结果进行取舍即可;(2)联立方程组并解答求得{sinα=45cosα=−35,然后利用两角和与差的正切三角函数解答.本题考查两角和与差的三角函数,考查计算能力.20.【答案】解:(1)设所求的直线l 的方程为y =−2x +b(b >0),它与两坐标轴的正半轴的交点依次为(0,b),(b2,0),因为直线l 与两坐标轴的正半轴所围成的三角形的面积等于1, 所以12b ×b2=1,解得b =2,所以直线l 的方程是y =−2x +2,即2x +y −2=0. (2)由题意,可设圆C 的圆心为C(a,2−2a),半径为r , 所以圆心C 到直线l′:x −2y −1=0的距离,d =5=√5|a −1|=r ,又圆C 被x 轴截得的弦长等于4, 所以r 2−(2−2a)2=4, 所以5(a −1)2=4+(2−2a)2, 解得:a =−1或a =3,当a =−1时,圆心C(−1,4),r =2√5; 当a =3时,圆心C(3,−4),r =2√5;所以圆C 的方程是(x +1)2+(y −4)2=20或(x −3)2+(y +4)2=20.【解析】(1)设所求的直线l 的方程为y =−2x +b(b >0),由坐标与图形的性质和三角形的面积公式求得b 的值即可;(2)利用圆的圆心到直线的距离与半径相等,列出方程求解即可. 本题考查圆的切线方程,直线与圆的位置关系的应用,考查计算能力.21.【答案】(1)证明:过点S 作SO ⊥AD ,垂足为O ,连接OB ,OC .∵平面SAD ⊥平面ABCD ,平面SAD ∩平面ABCD =AD ,∴SO ⊥平面ABCD ,∴SO ⊥BD . ∵△SDA 是等腰三角形,∴OD =12AD =BC ,又OD//BC ,∠BCD =90°,∴四边形OBCD 是正方形,∴BD ⊥OC . 又OC ∩SO =O ,SO ⊂平面SOC ,CO ⊂平面SOC , ∴BD ⊥平面SOC ,SC ⊂平面SOC ,∴SC ⊥BD . (2)解:由(1)知,OS ,OA ,OB 两两垂直,以O 为坐标原点,分别以OA ,OB ,OS 所在直线为x 轴,y 轴,z 轴,建立如图所示的空间直角坐标系O −xyz .不妨设BC =1,则B(0,1,0),D(−1,0,0),S(0,0,1),A(1,0,0),M(−12,0,12),∴AB ⃗⃗⃗⃗⃗ =(−1,1,0),AM ⃗⃗⃗⃗⃗⃗ =(−32,0,12),设平面MAB 的法向量为m ⃗⃗⃗ =(x,y,z),则{m ⃗⃗⃗ ⋅AB ⃗⃗⃗⃗⃗ =0m ⃗⃗⃗ ⋅AM ⃗⃗⃗⃗⃗⃗ =0,即{−x +y =0−32x +12z =0,令x =1,得m⃗⃗⃗ =(1,1,3), 平面ABD 的一个法向量为n ⃗ =(0,0,1), ∴cos〈m ⃗⃗⃗ ,n ⃗ 〉=m ⃗⃗⃗ ⋅n ⃗⃗|m ⃗⃗⃗ ||n ⃗⃗ |=1×√1+1+32=3√1111,即二面角M −AB −D 的余弦值是3√1111.【解析】(1)过点S 作SO ⊥AD ,垂足为O ,连接OB ,OC.证明SO ⊥BD ,BD ⊥OC ,然后证明BD ⊥平面SOC ,推出SC ⊥BD .(2)OS ,OA ,OB 两两垂直,以O 为坐标原点,分别以OA ,OB ,OS 所在直线为x 轴,y 轴,z 轴,建立如图所示的空间直角坐标系O −xyz.求出平面MAB 的法向量,平面ABD 的一个法向量利用空间向量的数量积求解即可.本题考查直线与平面垂直的判断定理的应用,二面角的平面角的求法,考查空间想象能力,转化思想以及计算能力,是中档题.22.【答案】解:(1)由已知得{4m +9n =18m +6n =1,解得{m =116n =112,所以曲线C 的方程为x 216+y 212=1; (2)令x =8,则R(8,6k),联立{x 216+y 212=1y =k(x −2),整理得(4k 2+3)x 2−16k 2x +16(k 2−3)=0,设P(x 1,y 1),Q(x 2,y 2), 则x 1+x 2=16k 24k 2+3,x 1x 2=16(k 2−3)4k 2+3,∴k 1+k 2=y 1−3x 1−2+y 2−3x 2−2=y 1x 1−2+y 2x 2−2−3(1x 1−2+1x 2−2) =2k −3×x 1+x 2−4x 1x 2−2(x 1+x 2)+4=2k −3×16k 24k 2+3−416(k 2−3)4k 2+3−32k 24k 2+3+4=2k −1,又k 3=6k−38−2=k −12,∴k 1+k 2=2k 3,∴λ等于定值2,得证.【解析】(1)通过点满足椭圆方程,然后求解m ,n ,得到椭圆方程.(2)令x =8,则R(8,6k),联立直线与椭圆方程,设P(x 1,y 1),Q(x 2,y 2),利用韦达定理,转化求解斜率的和,然后转化求解证明即可.本题考查直线与椭圆的位置关系的综合应用,考查转化思想以及计算能力,是难题.。
湖北省2022-2023学年高二上学期期末联考测试语文试卷(含答案解析)
湖北省2022-2023学年高二上学期期末联考测试语文试卷学校:___________姓名:___________班级:___________考号:___________ 一、现代文阅读阅读下面的文字,完成下面小题。
材料一中国古典戏曲是一种具有鲜明特色的综合艺术,它融合了文学、音乐、舞蹈、美术等多种元素,具有独特的审美观念和完整的表演体系。
中国古典戏曲与古希腊戏剧、印度梵剧并称“世界三大古老戏剧文化”。
虽然中国古典戏曲在宋元时期才正式形成,但它积蓄既久,源头亦多,具有旺盛的生命力。
在长期的表演、传唱过程中,古典戏曲弘扬正气、褒奖忠义、鞭挞丑恶,使观众在潜移默化中受到熏陶。
中国戏曲的独到之处,是它的虚拟性。
西方戏剧基本上是不承认这一点的。
他们的演出,是“现在进行式”,十分重视舞台上的真实感。
他们的道具、布景等等,总是面面俱到,力求真实。
但是,这种做法其实是吃力不讨好的。
花钱多不说,也未必有效果。
因为道具布景做得再像,也是假的,而且其真实性也总是有限的。
中国的戏曲艺术家就高明得多。
他们干脆公开承认是在演戏,一切都是假的,不过是“以歌舞演故事”,即中国戏曲的演出是“过去叙述式”的。
咱们姑妄言之,你们也姑妄听之,对付着看好了。
古典戏曲具有很强的程式化特征。
戏曲的程式是按照美的规律创造出来的,蕴含了人们的生活体验和审美积淀。
舞台上呈现的以桨代舟、以鞭代马及戏曲中的台步、云手、起霸、水袖等动作,以虚代实,形成了一套固定的程式。
京剧《天女散花》运用“绸子舞”的身段技巧和程式来展现天女的缥缈和婀娜。
梅兰芳从国画《散花图》中得到灵感,经过反复研究和揣摩,感悟天女的姿态、气质和神韵,在舞台上再现了画中仙女的神态,将散花的动作表现得如云雾般变幻无穷,给人以美的享受。
在舞台美术方面,传统戏曲以“一桌二椅”为主要呈现形式,没有具象的舞美元素,为观众营造出一个写意的舞台空间。
这一点在当代新编戏曲中也得到了很好的体现。
比如,新编昆曲的代表作《白罗衫》,它的舞台和布景都相对简单,延续了传统戏曲的呈现形式,在典雅、写意美学的基础之上,努力适应现代的剧场环境和观众的审美变化。
2021-2022学年湖北省高二(上)期末数学试卷+答案解析(附后)
2021-2022学年湖北省高二(上)期末数学试卷一、单选题(本大题共8小题,共40分。
在每小题列出的选项中,选出符合题目的一项)1.与空间向量共线的一个向量的坐标是( )A. B.C.D.2.抛物线的焦点坐标是( )A.B.C. D. 3.在单调递减的等比数列中,若,,则( )A. 9B. 3C.D.4.若、、为空间三个单位向量,,且与、所成的角均为,则( )A. 5B.C.D.5.雅言传承文明,经典浸润人生.某市举办“中华经典诵写讲大赛”,大赛分为四类:“诵读中国”经典诵读大赛、“诗教中国”诗词讲解大赛、“笔墨中国”汉字书写大赛、“印记中国”学生篆刻大赛.某人决定从这四类比赛中任选两类参赛,则“诵读中国”被选中的概率为( )A. B. C.D.6.由直线上的点向圆引切线,则切线长的最小值为( )A.B.C. 4D. 27.围棋起源于中国,据先秦典籍世本记载:“尧造围棋,丹朱善之”,至今已有四千多年历史.围棋不仅能抒发意境、陶冶情操、修身养性、生慧增智,而且还与天象易理、兵法策略、治国安邦等相关联,蕴含着中华文化的丰富内涵.在某次国际围棋比赛中,规定甲与乙对阵,丙与丁对阵,两场比赛的胜者争夺冠军,根据以往战绩,他们之间相互获胜的概率如下:甲乙丙丁甲获胜概率/乙获胜概率/丙获胜概率/丁获胜概率/则甲最终获得冠军的概率是( )A. B. C. D.8.在xOy平面上有一系列点,,⋯,,⋯,对每个正整数n,点位于函数的图象上,以点为圆心的与x轴都相切,且与彼此外切.若,且的前n项之和为,则( )A. B. C. D.二、多选题(本大题共4小题,共20分。
在每小题有多项符合题目要求)9.过点且在两坐标轴上的截距互为相反数的直线方程为( )A. B. C. D.10.关于双曲线,下列结论正确的是( )A. 离心率为B. 实轴长为6C. 渐近线方程为D. 焦点F到一条渐近线的距离为311.先后抛掷两颗质地均匀的骰子,第一次和第二次出现的点数分别记为a,b,则下列结论正确的是( )A. 时的概率为B. 时的概率为C. 时的概率为D. 是6的倍数的概率是12.如图,P是椭圆与双曲线在第一象限的交点,且,共焦点,,,,的离心率分别为,,则下列结论正确的是( )A. ,B. 若,则C. 若,则的最小值为2D.三、填空题(本大题共4小题,共20分)13.直线倾斜角为 .14.等差数列的前n项之和为,若,则 .15.由曲线围成的图形的面积为 .16.已知平行四边形ABCD内接于椭圆,且AB,AD的斜率之积为,则椭圆的离心率为 .四、解答题(本大题共6小题,共70分。
武汉三中高二上期末考试语文复习题(一)(含答案)
2、A 、罢黜 国萃 涣散 挑肥拣瘦B 、检点 揣测 赔偿 残羹冷灸C 、瞌睡 罪蘖 炫耀 相形见绌D 、厮打 弊病 倾覆 归根结蒂高二上期末考试语文复习题(一)出题: 审题:1、下列各项中,读音全部正确的是(3分) 下列各项中,没有错别字的是(3分)A 、自诩.x ǔ 给.予j ǐ 冠.冕gu ān 脑髓.su íB 、翅.膀zh ì 孱.头c àn 芦苇.w ěi 休戚.相关q ì C 、推衍.y ǎn 剔.透t ī 横.财h âng 咄.咄逼人du ō D 、囊.括n áng 蹩.脚bi â 古刹.ch à 蜿.蜒w ān 3、依次填入下列横线处的词语,最恰当的一组是( 3分 )“(有)XX ,就是任性;也是醉了;那画面太美我不敢看;且行且珍惜;你懂的;那么,问题来了”等十条网友们 的流行语入围“2014年十大网络流行语”,立即引起网友们的强烈共鸣。
网络流行语,顾名思义就是在网络上流行的语言,是网民们 的表达方式。
它作为一种在虚拟社会中广泛流行并影响到现实生活的语言形式,能得以迅速 ,其原因 是符合语言省力的原则。
它对于缓解人的紧张情绪、释放压力、放松心情具有重要的作用。
A.家喻户晓 相沿成俗 传播 不啻B.耳熟能详 约定俗成 蹿红 无非C.口授心传 习以为常 传扬 大概D.通俗易懂 司空见惯 蹿升 也许 4、下列各句中,没有语病的一项是(3分)A.对于马航MH370客机失联调查结果的可靠性,许多人提出质疑:为何英国空难调查处能在未发现飞机残骸的情况下确定飞机坠毁?B.如何在新的互联网环境下更加有效地发挥政务微博的作用,为公众提供更好的公共服务,将成为未来政务微博发展的关键。
C.中国梦,首先是百姓的安居梦。
房子,在中国老百姓心中,不仅是向希望起航的港湾,更是一个遮风挡雨的住所。
D.新一轮医改以来,围绕保基本、强基层、建机制为中心,政府加大投入,推动医改向纵深发展,让人民群众共享医改红利。
第三套湖北高二上学期期末试卷
第三套高二上学期期中英语试卷第二部分阅读理解(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,从每题所给的四个选项(A 、B 、C和D)中,选出最佳选项,并在题卡上将该项涂黑。
AThere are more to enjoy in the city this summer than beaches. Some of Toronto’s biggest attractions have new and exciting features for summer 2012, both indoors and outdoors. Here’s a look at what’s new this summer.Art Gallery of OntarioIf you’re looking to get some culture, there’s plenty to see and do at the Art Gallery of Ontario, including art exhibits and collections from the world. Right now there’s Picasso: Masterpieces from the Musee National Picasso, Paris, which runs until August 26.Canada’s wonderlandJust outside the city limits is Canada’s Wonderland, the biggest theme park in Canada. This year sees a lot of new additions t o the park, most notably Leviathan, one of the world’s longest and tallest roller coasters. There is also an interactive dinosaur park, stage shows for the kids and Splash Works water park.Casa LomaThe city’s only historic castle is a great place to take the kids for a day of exploration through the castle grounds, gardens and stables. The venue has many events going on throughout the year, and this summer’s activities include archery courses and Teddy Bear Picnic for kids ages two and up.Black Creek Pioneer VillageThe village features people dressed up for the 19th century, living the old fashioned way. There are gardens, farms filled with domestic animals and more than 30 historical buildings to explore. During the week visitors can tour the grounds, meet with historians, practice Victorian traditions, taste samples in the brewery and more. The site has activities on holidays, like a Revolutionary War Re-enactment and BBQ on Father’s Day and a Canada Day Celebration.Toronto ZooThe Toronto Zoo has more than 5,000 animals on display, including some new faces this year.A polar bear cub named Hudson made his debut in March, and starting in May there is a pair of rare White Lions in the African Savannah section. Be sure to stay for informative talks and presentations from the animals handlers, presented daily.21.What is the main idea of the passage?A. New attractions appear this summer.B. Tourists are especially fond of Toronto.C. Tourism has been advancing rapidly.D. Beaches are out of people’s attenti on.22.What is the feature of Art Gallery of Ontario?A. It is about the cultural difference.B. It has too many relics on show.C. You can enjoy world-famous painting.D. You can have a close look at Picasso.23.If your child enjoys theme parks, you will go to ______.A. Black Creek Pioneer VillageB. Canada’s WonderlandC. Art Gallery of OntarioD. Casa Loma24.As a person seeking a rural life you prefer ________.A. Black Creek Pioneer VillageB. Canada’s WonderlandC. Art Gallery of OntarioD. Toronto ZooBFor the past few months, Steven Pitts has woken up each morning to a landscape (风光) of pines, rivers and changing leaves on the Appalachian Trail (A.T.), one of the famous trails (路径) for hikers in the US. The 19-year-old is a recent graduate of East Mecklenburg High School. He hiked the A.T. as a part of his gap year plan.Pitts discovered the thrill of exploring from reading adventure novels. At 15, he began to plan a gap year to relieve his eager for adventure. As part of this, he decided to hike the A.T.“I grew up being a huge fan of high fantasy novels,” Pitts said. “Whenever I went camping, I felt like I was living out some of my favorite stories.” For him, hiking the trail “seemed like the perfect way to have my own personal big adventure”.To celebrate the f inish of his hike, Pitts’ family climbed to the summit (顶峰) of Spring Mountain in Georgia to greet him.“The entire trek (长途跋涉) was demanding,” Pitts said. “But not in the ways I expected. It demanded that I bear long days over rough terrain (地形) and often in poor weather. But it also demanded me not to take the hike too seriously and ... enjoy the sights and experiences that the trail had to offer.“Sometimes, the hardest thing for me to do was to enjoy myself, but once I did, the trail became a breeze.”Traveling above the tree line in New England was a highlight on the trail, Pitts said. The views along the White Mountains and the Presidential Mountain Range were breathtaking.“You could see for hundreds of miles in the distance, which was really luck y because the White Mountains, particularly Mount Washington, are known for having horrible weather,” Pitts said. “When I got up there, there was not a cloud in the sky.”But Pitts also faced many difficulties along the way. It was the support of his parents, he said, that kept him going.“Whenever I was really down, they would remind me this is a once-in-a-lifetime opportunity,” he explained.“In this day and age, I don’t feel like everyone should study a four-year college degree after graduation,” said his mom Ann Pitts. “What a better time to explore when you’re young?”25.Why did Pitts decide to hike the Appalachian Trail?A. To fulfill his parents’ expectations.B. To satisfy his desire for adventure.C. To explore his choices before college.D. To gather writing material for his fantasy novel.26. What was the greatest difficulty for Pitts while hiking the Appalachian Trail according to the text?A. He had to endure long days over rough terrain.B. He had to put up with the terrible weather there.C. He had to deal with unexpected dangers sometimes.D. He had to try not to see the journey just as a task.27. What is Pitts’ parents’ attitude towards his gap year plan?A. Doubtful.B. Opposed.C. Supportive.D. Uncaring.CWhen you think of a typical American, who do you picture? A pretty blond white American like Taylor Swift? Or a handsome black American like basketball star Kobe Bryant? In fact, there was a time when the average American looked like neither of these people.Back in the year 1500, the average American was a brown-skinned hunter-gatherer who probably rode a horse and wore clothing made from animal skins. Today, the ancestors of these people – who usually identify themselves based on their individual tribes such as Iriquois, Apache and Navajo –are broadly referred to as “Native Americans”, “American Indians” or simply “Indians”.There’s a chance that you’ve never even heard of American Indians. That’s because there aren’t very many left. When the European settlement of Nort h America began, there was fierce conflict between settlers from overseas and these native people. After the British government and military were driven in the Revolutionary War, conflicts with natives continued as the states were created that would later make up the US. In these conflicts, millions of natives were killed.In 1830, former US President Andrew Jackson signed the Indian Removal Act. This act required all Indians to moved to west of the Mississippi River to allow for the expansion of the US. Am erican Indians were treated as a military “enemy” until 1924, when the few Indians still aliveat that point were granted (准予) US citizenship. That was the first time that the US government formally recognized the rights of Indians.While the story of the American Indians has been a sad one, their legacy (遗产) is still felt every day in the US. Many US geographical names come from Indian languages, such as Ohio, Topeka, Kansas, and the Potomac River. At the same time, there are many successful academics and other important US leaders who are descended (是……的后裔) from Indians. And nowadays, more and more history classes in US public schools are educating students about how Indians suffered during the settlement of the US.Although what happened cannot be undone, we can learn at least one thing from the sad history of the Indians: If we want a better future, we must look carefully and honestly at the past.28.What is the article mainly about?A. The history of the settlement of the US.B. What a typical American is like.C. The sad story of American Indians.D. American Indians’ economic impact on the US.29. It can be inferred from the article that in the middle of the 19th century, American Indians_______.A. were driven from the US by the British governmentB. were regarded as a military “enemy” of the USC. were finally granted US citizenshipD. were required to live along the Mississippi River30. What can we learn about American Indians from the article?A. There are few influential American Indians in US history.B. Some of their languages are still used today.C. The majority of them lived in the states of Ohio and Kansas.D. American youths are becoming more informed of the suffering of the Indians.31. What is the author’s attitude toward the history of American Indians?A. It’s miserable to be reminded of it.B. It’s important to learn from it.C. He doesn’t have much interest in it.D. Every school should teach classes about it.DIn 1969, as US astronaut (宇航员) Neil Armstrong became the first human to set foot on the moon, he famously declared, “That’s one small step for a man, one giant leap for mankind.” And as many countries come together to celebrate World Space Week from Oct 4-10, it seems that there are still many leaps to take.During ancient times, our only steps were back and forth across the surface of our own planet. We climbed to the top of mountains, or sailed in boats across oceans. But we didn’t, and couldn’t, leave the surface of our planet.It’s not surprising that back then, the so-called heavens fascinated us so much. How could they not? How could people not be obsessed with the great object in the sky that arrived each day with light and then left, taking the light with it? Or the mysterious moon, stars and planets that lit up the night sky? Compared with us, these things seemed so free and exciting.Different cultures created stories about the heavens. The Chinese referred to a “King of the Sky” who created the heavens and decorated them with stars; the ancient Greeks had “the Sky Gods” who controlled the weather.Few of us believe those stories anymore – science has taught us better. And yet the heavens, or what we now call “space” and “outer space”, are still a source of mystery and fascination for us. Yes, there are space stations, satellites and trips to other planets. None of this modern science, however, has made space any less fascinating to us.As the American scientist Neil deGrasse Tyson said, “The universe is under no obligation (义务) to make sense to you.” The more we know, the more our curiosity grows.Even today, the most popular novels and movies are set on other planets, solar systems or galaxies (星系). Space is still mysterious, as it was for the ancient Chinese, Greeks and Romans. And perhaps it always will be.32. The author used Neil Armstrong’s story to ______.A. draw attention to great achievements in space explorationB. describe how the celebration of World Space Week beganC. explain why human beings are curious about outer spaceD. predict future space programs that might change history33. The underline word “obsessed” in Paragraph 3 is closest in meaning to ______.A. happyB.boredC. satisfiedD. interested34. Compared with modern people, ancient Greeks ______.A. didn’t leave many records of space objectsB. believed the King of the Sky controlled the weatherC. shared a similar curiosity about the universeD. showed little respect for the power of nature35. What’s the article mainly about?A. Important events in space exploration history.B. Human’s unchangeable interest in space.C. Ancient stories inspired by the heavens.D. What we have learned about the universe.第二节(共5小题;每小题2分,满分10 分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
湖北省2021-2022学年高二上学期期末考试化学试卷(PDF版)
2021-2022学年湖北省新高考联考高二上学期期末考试高二化学试卷试卷满分:100分可能用到的相对原子质量:H-1C-12N-14O-16V-51一、选择题:本题共15小题,每小题3分,共45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.下列过程中,反应速率的增大对人类有益的是A.金属的腐蚀B.海水的淡化C.食物的腐败D.橡胶的老化2.已知:相同条件下,①2H2(g)+O2(g)=2H2O(g)ΔH1②2H2(g)+O2(g)=2H2O(l)ΔH2。
下列说法正确的是A.ΔH1>ΔH2B.ΔH1<ΔH2C.ΔH1=ΔH2D.无法比较ΔH1与ΔH2的大小3.在容积不变的密闭容器中,A与B反应生成C,其化学反应速率分别用υ(A),υ(B),υ(C)表示。
已知:2υ(A)=3υ(B),3υ(B)=2υ(C),则此反应可表示为A.2A+3B=2C B.3A+2B=3C C.3A+B=2C D.A+B=C 4.相同温度和压强下,关于物质熵的大小比较,合理的是A.1mol I2(g)<1mol I2(s)B.1mol H2O(g)<2mol H2O(g)C.1mol H2O(l)<1mol H2O(s)D.1mol H2O(g)<1mol H2O(l) 5.下列叙述中错误的是A.生铁是铁合金,其抗腐蚀能力比纯铁强B.在铁制品上镀铜时,铁制品为阴极C.用锡焊接的铁质器件,焊接处易生锈D.铁管上镶嵌锌块,铁管不易被腐蚀6.为了除去MgCl2溶液中的Fe3+,可在加热并搅拌的条件下加入一种试剂,过滤后,再向滤液中加入适量盐酸,这种试剂是A.NH3·H2O B.NaOH C.Mg(OH)2D.Na2CO37.几种短周期元素的原子半径及某些化合价见下表。
判断下列说法错误的是元素代号L M Q R T X Y Z化合价−1−2+4、−4−1、+7+5、−3+3+2+1原子半径/nm0.0710.0740.0770.0990.1100.1430.1600.186 A.L的简单氢化物的键长小于R的简单氢化物的键长B.L、X、Z的简单离子半径由大到小的顺序是L>Z>XC.X、Y、Z的第一电离能大小顺序是X>Y>ZD.QM2分子中所有原子均满足8电子的稳定结构8.下列说法正确的是A.p能级能量一定比s能级的能量高B.原子的核外电子仅从激发态跃迁到基态才产生原子光谱C.2p、3p、4p能级的轨道数依次增多D.2p和3p轨道的形状均为哑铃形9.下列实验操作正确且能达到实验目的的是ABCD测反应生成2H 的体积用标准NaOH 溶液滴定盐酸测定中和热验证K sp (Ag 2SO 4)>K sp (Ag 2S)10.由γ-羟基丁酸(HOCH 2CH 2CH 2COOH )生成γ-丁内酯(OO)的反应如下:HOCH 2CH 2CH 2COOHOO+H 2O 。
湖北省部分地区2022-2023学年高二上学期元月期末数学试题(含答案解析)
湖北省部分地区2022-2023学年高二上学期元月期末数学试题学校:___________姓名:___________班级:___________考号:___________一、单选题A .3B .5.曲线21169y yx +=与直线A .3B .6.已知双曲线22:45x y C -标为()3,1,则1MD MF -A .3B .7.为建设宜居之城,某市决定每年按当年年初住房总面积的面积为(b 单位:2m )的旧住房(二、多选题则(则(A .821a =C .2462022a a a a ++++ 三、填空题13.已知数列{}n a 为正项等比数列,且212223log log log a a a ++++ 14.已知双曲线1C 与双曲线的标准方程为.15.如图所示,在棱长均为A AB A AD BAD ''∠=∠=∠=16.已知O 为坐标原点,直线与抛物线点O 在直线AB 上的射影,则点四、解答题17.为弘扬宪法精神,某校举行宪法知识竞赛乙同学晋级的概率为12,甲、乙两人是否晋级互不影响(1)求甲、乙两人同时晋级的概率;(2)求甲、乙两人中至少有一人晋级的概率(1)求证:PB ⊥平面ADF ;(2)是否存在点E ,使得平面DEP 线段BE 的长;若不存在,请说明理由.21.在数列{}n a 中,已知1a =(1)证明:数列{}1n a +为等比数列;(2)记13n n n n b a a +=,数列{}n b 的前22.已知平面内点P 与两定点(1)求点P 的轨迹连同点12,Q Q (2)设不过坐标原点且不垂直于坐标轴的直线的中点.①求证:直线OM 与直线l 的斜率之积为定值;②过点M 作直线l 的垂线交曲线直线l 交于点T ,若有ON λ=参考答案:1.D【分析】根据平行得到斜率,结合点坐标得到答案.【详解】直线21y x =-+的斜率为2-,两直线平行,故所求直线方程为()121y x -=--.整理得:230x y +-=.故选:D 2.A【分析】直接由焦点位置及焦点到准线的距离写出标准方程即可.【详解】由焦点在y 轴的正半轴上知抛物线开口向上,又焦点到准线的距离为2,故抛物线的标准方程是24x y =.故选:A.3.C【分析】根据题意和空间向量的基本定理列出方程组,解之即可.【详解】因为三向量a 、b 、c共面,设c ma nb =+,其中m 、R n ∈,则2024m n n m n z-=⎧⎪=⎨⎪+=⎩,解得123m n z =⎧⎪=⎨⎪=⎩.故选:C.4.C【分析】建立空间直角坐标系,得到各点坐标,再根据向量公式计算得到距离.【详解】如图所示:以,,DA DC DD '分别为,,x y z 轴建立空间直角坐标系.则()2,0,2A ',()2,2,0B ,()0,2,1E ,()0,2,2A B '=-,()2,0,1BE =- ,则()0,2,0AD = ,(1,,1)2tAF = ,BP = 于是0BP AD ⋅= ,0BP AF ⋅=,有BP 又AD AF A = ,AD ⊂平面ADF ,因此PB ⊥平面ADF .(2)由(1)平面ADF 的法向量为BP 又()2,2,0DE t =- ,()0,2,2PD =-,设平面则()220220x t y y z ⎧+-=⎨-=⎩,不妨令2y =,则故平面DEP 的一个法向量为(2n t =-设平面DEP 与平面ADF 所成角为θ,则解得4t =或12t =,此时点E 在线段BC 所以,不存在这样的点E .21.(1)证明见解析(2)5【分析】(1)计算()131111n n n n a a a a +++++==【点睛】关键点点睛:本题求解的关键有三个:,x y表示出λ;三是利用基本不等式求解系;二是利用00。
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第三套高二上学期期中英语试卷第二部分阅读理解(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,从每题所给的四个选项(A 、B 、C和D)中,选出最佳选项,并在题卡上将该项涂黑。
AThere are more to enjoy in the city this summer than beaches. Some of Toronto’s biggest attractions have new and exciting features for summer 2012, both indoors and outdoors. Here’s a look at what’s new this summer.Art Gallery of OntarioIf you’re looking to get some culture, there’s plenty to see and do at the Art Gallery of Ontario, including art exhibits and collections from the world. Right now there’s Picasso: Masterpieces from the Musee National Picasso, Paris, which runs until August 26.Canada’s wonderlandJust outside the city limits is Canada’s Wonderland, the biggest theme park in Canada. This year sees a lot of new additions t o the park, most notably Leviathan, one of the world’s longest and tallest roller coasters. There is also an interactive dinosaur park, stage shows for the kids and Splash Works water park.Casa LomaThe city’s only historic castle is a great place to take the kids for a day of exploration through the castle grounds, gardens and stables. The venue has many events going on throughout the year, and this summer’s activities include archery courses and Teddy Bear Picnic for kids ages two and up.Black Creek Pioneer VillageThe village features people dressed up for the 19th century, living the old fashioned way. There are gardens, farms filled with domestic animals and more than 30 historical buildings to explore. During the week visitors can tour the grounds, meet with historians, practice Victorian traditions, taste samples in the brewery and more. The site has activities on holidays, like a Revolutionary War Re-enactment and BBQ on Father’s Day and a Canada Day Celebration.Toronto ZooThe Toronto Zoo has more than 5,000 animals on display, including some new faces this year.A polar bear cub named Hudson made his debut in March, and starting in May there is a pair of rare White Lions in the African Savannah section. Be sure to stay for informative talks and presentations from the animals handlers, presented daily.21.What is the main idea of the passage?A. New attractions appear this summer.B. Tourists are especially fond of Toronto.C. Tourism has been advancing rapidly.D. Beaches are out of people’s attenti on.22.What is the feature of Art Gallery of Ontario?A. It is about the cultural difference.B. It has too many relics on show.C. You can enjoy world-famous painting.D. You can have a close look at Picasso.23.If your child enjoys theme parks, you will go to ______.A. Black Creek Pioneer VillageB. Canada’s WonderlandC. Art Gallery of OntarioD. Casa Loma24.As a person seeking a rural life you prefer ________.A. Black Creek Pioneer VillageB. Canada’s WonderlandC. Art Gallery of OntarioD. Toronto ZooBFor the past few months, Steven Pitts has woken up each morning to a landscape (风光) of pines, rivers and changing leaves on the Appalachian Trail (A.T.), one of the famous trails (路径) for hikers in the US. The 19-year-old is a recent graduate of East Mecklenburg High School. He hiked the A.T. as a part of his gap year plan.Pitts discovered the thrill of exploring from reading adventure novels. At 15, he began to plan a gap year to relieve his eager for adventure. As part of this, he decided to hike the A.T.“I grew up being a huge fan of high fantasy novels,” Pitts said. “Whenever I went camping, I felt like I was living out some of my favorite stories.” For him, hiking the trail “seemed like the perfect way to have my own personal big adventure”.To celebrate the f inish of his hike, Pitts’ family climbed to the summit (顶峰) of Spring Mountain in Georgia to greet him.“The entire trek (长途跋涉) was demanding,” Pitts said. “But not in the ways I expected. It demanded that I bear long days over rough terrain (地形) and often in poor weather. But it also demanded me not to take the hike too seriously and ... enjoy the sights and experiences that the trail had to offer.“Sometimes, the hardest thing for me to do was to enjoy myself, but once I did, the trail became a breeze.”Traveling above the tree line in New England was a highlight on the trail, Pitts said. The views along the White Mountains and the Presidential Mountain Range were breathtaking.“You could see for hundreds of miles in the distance, which was really luck y because the White Mountains, particularly Mount Washington, are known for having horrible weather,” Pitts said. “When I got up there, there was not a cloud in the sky.”But Pitts also faced many difficulties along the way. It was the support of his parents, he said, that kept him going.“Whenever I was really down, they would remind me this is a once-in-a-lifetime opportunity,” he explained.“In this day and age, I don’t feel like everyone should study a four-year college degree after graduation,” said his mom Ann Pitts. “What a better time to explore when you’re young?”25.Why did Pitts decide to hike the Appalachian Trail?A. To fulfill his parents’ expectations.B. To satisfy his desire for adventure.C. To explore his choices before college.D. To gather writing material for his fantasy novel.26. What was the greatest difficulty for Pitts while hiking the Appalachian Trail according to the text?A. He had to endure long days over rough terrain.B. He had to put up with the terrible weather there.C. He had to deal with unexpected dangers sometimes.D. He had to try not to see the journey just as a task.27. What is Pitts’ parents’ attitude towards his gap year plan?A. Doubtful.B. Opposed.C. Supportive.D. Uncaring.CWhen you think of a typical American, who do you picture? A pretty blond white American like Taylor Swift? Or a handsome black American like basketball star Kobe Bryant? In fact, there was a time when the average American looked like neither of these people.Back in the year 1500, the average American was a brown-skinned hunter-gatherer who probably rode a horse and wore clothing made from animal skins. Today, the ancestors of these people – who usually identify themselves based on their individual tribes such as Iriquois, Apache and Navajo –are broadly referred to as “Native Americans”, “American Indians” or simply “Indians”.There’s a chance that you’ve never even heard of American Indians. That’s because there aren’t very many left. When the European settlement of Nort h America began, there was fierce conflict between settlers from overseas and these native people. After the British government and military were driven in the Revolutionary War, conflicts with natives continued as the states were created that would later make up the US. In these conflicts, millions of natives were killed.In 1830, former US President Andrew Jackson signed the Indian Removal Act. This act required all Indians to moved to west of the Mississippi River to allow for the expansion of the US. Am erican Indians were treated as a military “enemy” until 1924, when the few Indians still aliveat that point were granted (准予) US citizenship. That was the first time that the US government formally recognized the rights of Indians.While the story of the American Indians has been a sad one, their legacy (遗产) is still felt every day in the US. Many US geographical names come from Indian languages, such as Ohio, Topeka, Kansas, and the Potomac River. At the same time, there are many successful academics and other important US leaders who are descended (是……的后裔) from Indians. And nowadays, more and more history classes in US public schools are educating students about how Indians suffered during the settlement of the US.Although what happened cannot be undone, we can learn at least one thing from the sad history of the Indians: If we want a better future, we must look carefully and honestly at the past.28.What is the article mainly about?A. The history of the settlement of the US.B. What a typical American is like.C. The sad story of American Indians.D. American Indians’ economic impact on the US.29. It can be inferred from the article that in the middle of the 19th century, American Indians_______.A. were driven from the US by the British governmentB. were regarded as a military “enemy” of the USC. were finally granted US citizenshipD. were required to live along the Mississippi River30. What can we learn about American Indians from the article?A. There are few influential American Indians in US history.B. Some of their languages are still used today.C. The majority of them lived in the states of Ohio and Kansas.D. American youths are becoming more informed of the suffering of the Indians.31. What is the author’s attitude toward the history of American Indians?A. It’s miserable to be reminded of it.B. It’s important to learn from it.C. He doesn’t have much interest in it.D. Every school should teach classes about it.DIn 1969, as US astronaut (宇航员) Neil Armstrong became the first human to set foot on the moon, he famously declared, “That’s one small step for a man, one giant leap for mankind.” And as many countries come together to celebrate World Space Week from Oct 4-10, it seems that there are still many leaps to take.During ancient times, our only steps were back and forth across the surface of our own planet. We climbed to the top of mountains, or sailed in boats across oceans. But we didn’t, and couldn’t, leave the surface of our planet.It’s not surprising that back then, the so-called heavens fascinated us so much. How could they not? How could people not be obsessed with the great object in the sky that arrived each day with light and then left, taking the light with it? Or the mysterious moon, stars and planets that lit up the night sky? Compared with us, these things seemed so free and exciting.Different cultures created stories about the heavens. The Chinese referred to a “King of the Sky” who created the heavens and decorated them with stars; the ancient Greeks had “the Sky Gods” who controlled the weather.Few of us believe those stories anymore – science has taught us better. And yet the heavens, or what we now call “space” and “outer space”, are still a source of mystery and fascination for us. Yes, there are space stations, satellites and trips to other planets. None of this modern science, however, has made space any less fascinating to us.As the American scientist Neil deGrasse Tyson said, “The universe is under no obligation (义务) to make sense to you.” The more we know, the more our curiosity grows.Even today, the most popular novels and movies are set on other planets, solar systems or galaxies (星系). Space is still mysterious, as it was for the ancient Chinese, Greeks and Romans. And perhaps it always will be.32. The author used Neil Armstrong’s story to ______.A. draw attention to great achievements in space explorationB. describe how the celebration of World Space Week beganC. explain why human beings are curious about outer spaceD. predict future space programs that might change history33. The underline word “obsessed” in Paragraph 3 is closest in meaning to ______.A. happyB.boredC. satisfiedD. interested34. Compared with modern people, ancient Greeks ______.A. didn’t leave many records of space objectsB. believed the King of the Sky controlled the weatherC. shared a similar curiosity about the universeD. showed little respect for the power of nature35. What’s the article mainly about?A. Important events in space exploration history.B. Human’s unchangeable interest in space.C. Ancient stories inspired by the heavens.D. What we have learned about the universe.第二节(共5小题;每小题2分,满分10 分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。