陕西历年高考真题Word

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2015陕西高考数学试题及答案word版

2015陕西高考数学试题及答案word版

2015陕西高考数学试题及答案word版2015年陕西省高考数学试题(文科)一、选择题:本题共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. 若集合A={x|x^2+x-2=0},B={x|x^2-3x+2=0},则A∩B=A. {1}B. {2}C. {1,2}D. {-1,2}2. 若复数z满足z^2+z+1=0,则z的实部为A. -1B. 0C. 1D. 23. 若函数f(x)=x^3-3x+1在x=1处取得极值,则f'(x)=A. 3x^2-3B. 3x^2-2C. 3x^2+3D. 3x^2+24. 若直线l:y=kx+b与圆C:x^2+y^2=1相交于点A和点B,且|AB|=√2,则k的取值范围是A. (-∞,-1]∪[1,+∞)B. (-1,1)C. [-1,1]D. (-∞,-1)∪(1,+∞)5. 若等差数列{an}的前n项和为Sn,且S3=3,S6=9,则S9=A. 15B. 12C. 9D. 66. 若a,b,c是等比数列{bn}的连续三项,则A. ac=b^2B. a^2=bcC. ab=c^2D. a^2=c^27. 若函数f(x)=x^2-4x+m在区间[2,+∞)上单调递增,则实数m的取值范围是A. m≥-4B. m≤4C. m≥4D. m≤-48. 若双曲线C:x^2/a^2-y^2/b^2=1(a>0,b>0)的一条渐近线方程为y=√2x,则A. a=bB. a=√2bC. b=√2aD. b=2a9. 若从4名男生和3名女生中选出3人参加比赛,其中至少有1名女生,则不同的选法种数为A. 35B. 42C. 45D. 4810. 若从52张扑克牌中随机抽取一张,抽到红桃的概率为1/4,则A. 有13张红桃B. 有26张红桃C. 有39张红桃D. 有52张红桃11. 若函数f(x)=x^3-3x+1在区间[1,2]上存在零点,则A. f(1)f(2)<0B. f(1)f(2)>0C. f(1)f(2)=0D. f(1)=f(2)12. 若抛物线C:y^2=2px(p>0)的焦点为F,点P在抛物线上,且|PF|=2p,则点P的坐标为A. (p,2p)B. (p,-p)C. (2p,2p)D. (2p,-p)二、填空题:本题共4小题,每小题5分,共20分。

【全科】陕西省高考真题卷精校版文档版(有答案)-2015年普通高等学校招生统一考试

【全科】陕西省高考真题卷精校版文档版(有答案)-2015年普通高等学校招生统一考试

【全科】陕西省高考真题卷精校版文档版(有答案)-2015年普通高等学校招生统一考试语文 (1)英语试题 (17)理科综合能力测试试题 (33)文科综合 (58)理科数学 (71)文科数学 (84)绝密★启用前新课标Ⅰ2015年普通高等学校全国统一考试语文注意事项:1.本试卷分第I卷(阅读题)和第II卷(表达题)两部分.2.考生务必将自己的姓名、考生号填写在答题卡上。

3.作答时,将答案写在答题卡上。

写在本试卷上无效。

4.考试结束后.将本试卷和答题卡一并交回。

第I卷阅读题甲必考题一、现代文阅读(9分,毎小题3分)阅读下面的文字,完成1〜3题宋代的农业、手工业、商业在唐代的基础上又有了新的发展,特别是商品经济出现了空前的繁荣,在此背景下,宋代的货巾流通和信用进入迅速发展时期,开创了古代金融的新篇章。

宋代在信用形式和信用工具方面都呈现出新的特点。

信用形式有借贷、质、押、典、赊买赊卖等多种形式。

借贷分为政府借贷和私人借贷。

政府借贷主要表现为赈贷的形式,在紧急情况下通过贷给百姓粮食或种子的方式,帮助他们度过困境。

私人借贷多为高利贷,它可以解决社会分化和“钱荒”带来的平民百姓资金严重不足的问题,满足特殊支付和燃眉之急的需要。

质、押是借贷的担保形式,由质库、解库等机构经营。

质属于动产担保,它必须转移动产的占有;押属于不动产担保,通常将抵押物的契约交付债权人即可。

债务人违约时,债权人可用变卖价款优先受偿。

典作为不动产转移的一种形式是在宋代形成和发展起来的。

其特点是典权人向出典人支付典价后,在典期内就占有了出典人典产的使用权和收益支配权,出典人也不必向典权人支付利息。

宋代的商业贸易非常发达,但存在着通货紧缩现象,故赊买赊卖行为也很普遍,几乎生产、流通、消费领域的所有物品都能进行赊买赊卖。

从实际效果看,它解决了军需、加强了流通,更重要的一点,它对束缚生产流通扩大和发展的高利贷构成了冲击。

随着社会经济的发展,宋代商业贸易对货币的要求越来越高,但是社会中货币供给和流通状况不尽理想,表现为货币流通区域的割据性、货币供给数量的有限性,以及大量流通的铜铁钱细碎和不便携带的特性,其结果是抑制了经济发展。

陕西英语往年高考试题文档含答案

陕西英语往年高考试题文档含答案

绝密★启用前2018年普通高等学校招生全国统一考试英语(考试时间:120分钟试卷满分:150分)注意事项:1. 答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。

2. 作答时,务必将答案写在答题卡上,写在本试卷及草稿纸上无效。

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短对话,每段对话后有一个小题,从题中给的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。

例:How much is the shirt?A.£19.15.B.£9.18.C.£9.15.1.What does John find difficult in learning German?A.Pronunciation.B.Vocabulary.C.Grammar.2.What is the probable relationship between the speakers?A.Colleagues.B.Brother and sister.C.Teacher and student.3.Where does the conversation probably take place?A. In a bank.B. At a ticket office.C. On a train.4. What are the speakers talking about?A.A restaurant.B.A street.C.A dish.5.What does the woman think of her interview?A.It was tough.B.It was interesting.C.It was successful. 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,每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。

高考真题——英语(陕西卷)Word版含解析

高考真题——英语(陕西卷)Word版含解析

第一部分:英语知识运用(共四节,满分55分)第一节语音知识(共5小题;每小题1分,满分5分)从每小题的A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项,并在答题卡上将该选项涂黑。

1. stomachA. technologyB. exchangeC. chairD. church2. uncleA. concertB. strangeC. blanketD. autumn3. exactA. excellentB. exampleC. exerciseD. expensive4. tableA. cottageB. basketC. wakeD. family5. doubleA. soulB. groupC. pronounceD. couple【答案】1.A2.C3.B4.C5.D5.double和couple里面的字母ou都是读/ ? /,soul里面的字母ou读/??/,group里面的字母ou读/u:/,pronounce里面的字母ou读/au/,选D。

【考点定位】考查单词辨音第二节情景对话(共5小题;每小题1分,满分5分)根据对话情境和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项,并在答题卡上将该选项涂黑。

选项中有两个为多余选项。

Doctor: Good morning, Sir. 6Johnson :Yes, doctor. I'm always tired but when I go to bed I can't sleep.Doctor: 7Johnson : Since I started my new job two months ago.Doctor : What is your job ?Johnson : I’m in advertising. 8Doctor : It depends. How many hours do you work?Johnson: About 80 hours a weekDoctor: 9 . Do you often take exercise?Johnson: Not very often. 10 .Doctor; Well, you do need to find some time. Try to work less, or look for a more stress-free job.A. That's a lot!B. I like my job.C. Does it matter?D. How can I help you?E. I don't have the time.F. What time do you usually go to bed?G.. How long have you had this problem?【答案】6.D7.G8.C9.A10.E10.根据上句:Not very often,可知这里是:我没有时间(锻炼)。

陕西高考试题及答案

陕西高考试题及答案

陕西高考试题及答案一、选择题(每题4分,共40分)1. 下列关于秦朝历史的说法,正确的是:A. 秦朝是中国历史上第一个统一的多民族国家B. 秦朝的都城是长安C. 秦始皇统一了度量衡D. 秦朝实行的是分封制答案:A2. 西安是陕西省的省会,其古称是:A. 长安B. 洛阳C. 咸阳D. 镐京答案:A3. 陕西的省花是:A. 牡丹B. 玫瑰C. 菊花D. 月季答案:A4. 下列关于陕西地理的描述,错误的是:A. 陕西位于中国西北部B. 陕西是中国的历史文化名省C. 陕西的省会是西安D. 陕西是中国最大的省份答案:D5. 陕西的著名旅游景点兵马俑位于:A. 西安B. 北京C. 南京D. 上海答案:A6. 陕西的著名小吃有:A. 肉夹馍B. 煎饼果子C. 热干面D. 肠粉答案:A7. 陕西的著名历史人物有:A. 秦始皇B. 孔子C. 诸葛亮D. 李白答案:A8. 下列关于陕西的描述,正确的是:A. 陕西是中国的农业大省B. 陕西是中国的工业大省C. 陕西是中国的科技大省D. 陕西是中国的经济大省答案:B9. 陕西的著名山脉秦岭位于:A. 陕西南部B. 陕西北部C. 陕西东部D. 陕西西部答案:A10. 陕西的著名民间艺术有:A. 秦腔B. 京剧C. 川剧D. 越剧答案:A二、填空题(每题2分,共20分)1. 陕西的简称是______。

答案:陕或秦2. 陕西的省会是______。

答案:西安3. 陕西的省花是______。

答案:牡丹4. 陕西的著名历史人物有______。

答案:秦始皇5. 陕西的著名旅游景点有______。

答案:兵马俑6. 陕西的著名小吃有______。

答案:肉夹馍7. 陕西的著名山脉有______。

答案:秦岭8. 陕西的著名民间艺术有______。

答案:秦腔9. 陕西位于中国的______部。

答案:西北10. 陕西的省会西安的古称是______。

答案:长安三、简答题(每题10分,共20分)1. 简述陕西在中国历史文化中的地位。

陕西高考真题2019-2019年汇编(含答案)word资料60页

陕西高考真题2019-2019年汇编(含答案)word资料60页

2019年陕西省高考英语真题第一部分第一大题英语知识运用(共三节,满分50分)第一节语音知识(共5小题;每小题1分,满分5分)从A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项,并在答题卡上将该项涂黑。

例:haveA. gaveB. saveC. hatD. made答案是C。

1.honestA. hostB. hourC. habitD. husband2.occurA. oceanB. possibleC. positionD. offer3.enoughA. touchB. mouthC. soulD. shout4.wearA. nearB. requireC. cheerD. share5.watchedA. judgedB. workedC. refusedD. wanted语法和词汇知识(共15小题;每小题1分,满分15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

例:We ________ last night, but se went to the concert instead.A. must have studiedB. might studyC. should have studiedD. would study答案是C。

6. I used to earn _______ than a pound a week when I first started work.A. a littleB. a fewC. fewerD. less7. —You look very tired _______ at all last night?—No, not really. I’m tired out now.A. Do you sleepB. Were you sleepingC. Did you sleepD. Had you slept8.She as educated at Beijing University, ________, she went on to have her advanced study abroad.A. after whichB. from whichC. from thatD. after that9. His plan was such a good one _________we all agreed to accept it.A. soB. andC. thatD. as10. My sister was against my suggestion while my brother was _________ it.A. in favor ofB. in memory ofC. in honor ofD. in search of11. —I’m terribly sorry that I made your table cloth dirty.—___________.A. Never mindB. Don’t mention itC. That’s rightD. Sorry12. The construction of the two new railway lines __________ by now.A. has completedB. have completedC. have been completedD. has been completed13. It is difficult to imagine his ________ the decision without any consideration.A. acceptB. acceptingC. to acceptD. accepted14. With no one to ________ in such a frightening situation, she felt very helpless.A. turn toB. turn onC. turn off C. turn over15. According to _________ World Health Organization, health care plans are needed in all big cities to prevent _________ spread of AIDS.A. the; 不填B. the; theC. a; aD. 不填; the16. Only then ___________ how much damage had been caused.A. she realizedB. she had realizedC. had she realizedD. did she realize17.Faced with a bill for $10,000,________.A. John has taken an extra jobB. the boss has given john an extra jobC. an extra job has been takenD. an extra job has been given to John18. He hurried to the booking office only _________ that all the tickets had been sold out.A. to tellB. to be toldC. tellingD. told19. As you worked late yesterday, you_________ have come this morning.A. mayn’tB. can’tC. mustn’tD. needn’t20. This is a very interesting book. I’ll buy it, __________.A. how much may it costB. no matter how it may costC. however much it may costD. how may it cost完形填空(共20小题;每小题1.5分,满分30分)阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

2019陕西省高考试题及答案word版

2019陕西省高考试题及答案word版

2019陕西省高考试题及答案word版一、语文试题及答案1. 阅读下列文言文,回答问题。

(1)请解释文中“踌躇”的含义。

答案:踌躇,指犹豫不决的样子。

(2)文中“之”字的用法是什么?答案:文中“之”字用作代词,指代前文提到的事物。

2. 现代文阅读。

(1)文章中作者表达了哪些观点?答案:作者表达了对环境保护的重视和对自然美景的赞美。

(2)文章的结尾有何深意?答案:文章结尾暗示了人类与自然和谐共存的重要性。

二、数学试题及答案1. 解下列方程。

(1)x^2 - 5x + 6 = 0答案:x = 2 或 x = 3(2)求函数y = 2x + 3在x = 1时的值。

答案:y = 52. 几何题。

(1)证明三角形ABC是等边三角形。

答案:由于AB = BC = CA,所以三角形ABC是等边三角形。

(2)计算圆的面积,半径为5。

答案:面积= π * 5^2 = 25π三、英语试题及答案1. 单选题。

(1)What is the best title for the passage?A. Environment ProtectionB. Technology AdvancesC. Health and Fitness答案:A2. 阅读理解。

(1)What does the author think about the new policy?答案:The author thinks the new policy is beneficial for the community.(2)What is the main idea of the passage?答案:The main idea is that teamwork is essential for success.四、综合试题及答案1. 政治题。

(1)解释“科学发展观”的含义。

答案:科学发展观是指坚持以人为本,全面、协调、可持续的发展观。

(2)我国的基本经济制度是什么?答案:我国的基本经济制度是以公有制为主体,多种所有制经济共同发展。

历年真题:陕西高考理科数学试题含答案(Word版)

历年真题:陕西高考理科数学试题含答案(Word版)

陕西高考数学试题(理)一.选择题:本大题共10小题,每小题5分,共50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.已知集合2{|0},{|1,}M x x N x x x R =≥=<∈,则M N =( ).[0,1]A .[0,1)B .(0,1]C .(0,1)D 【答案】 B【解析】B N M N M 选,).1,0[),11-(),,0[=∩∴=+∞=2.函数()cos(2)6f x x π=-的最小正周期是( ).2A π .B π .2C π .4D π【答案】 B 【解析】B T 选∴,π2π2||π2===ω 3.定积分1(2)xx edx +⎰的值为( ).2Ae + .1B e + .C e .1De -【答案】 C 【解析】C e e e e x dx e x x x 选∴,-0-1|)()2(1001102∫=+=+=+4.根据右边框图,对大于2的整数N ,输出数列的通项公式是( ).2n A a n = .2(1)n B a n =- .2n n C a = 1.2n n D a -=【答案】 C 【解析】C q a a a a a n 选的等比数列是.2,2∴,8,4,21321=====5.已知底面边长为1则正四棱柱的各顶点均在同一个球面上,则该球的体积为( )32.3A π .4B π .2C π 4.3D π【答案】 D 【解析】D r r r r 选解得设球的半径为.π3434V ∴,1,4)2(11)2(,32222====++=π6.从正方形四个顶点及其中心这5个点中,任取2个点,则这2个点的距离不小于该正方形边长的概率为( )1.5A2.5B3.5C 4.5D 【答案】 C 【解析】C p 选反向解题.53C 4C 4-1.2525=== 7.下列函数中,满足“()()()f x y f x f y +=”的单调递增函数是( )(A )()12f x x =(B )()3f x x = (C )()12xf x ⎛⎫= ⎪⎝⎭(D )()3xf x =【答案】 D 【解析】D y f x f y x f D C y x y x y x 选而言,对不是递增函数只有.333)()(,3)(.++=•=•=+8.原命题为“若12,z z 互为共轭复数,则12z z =”,关于逆命题,否命题,逆否命题真假性的判断依次如下,正确的是( )(A )真,假,真 (B )假,假,真 (C )真,真,假 (D )假,假,假 【答案】 B 【解析】Bz z b a z b a z bi a z bi a z 选选择完成判断逆命题的真假即可逆否名称也为真,不需,原命题为真,则设,逆命题和否命题等价原命题和逆否名称等价.,||||∴,||||,-,.2122222111=+=+==+=设样本数据1210,,,x x x 的均值和方差分别为1和4,若i i y x a =+(a 为非零常数,1,2,,10i =),则12,10,y y y 的均值和方差分别为( )(A )1+,4a (B )1,4a a ++ (C )1,4 (D )1,4+a【答案】 A 【解析】A 选变均值也加此数,方差不样本数据加同一个数,.10.如图,某飞行器在4千米高空水平飞行,从距着陆点A 的水平距离10千米处下降, 已知下降飞行轨迹为某三次函数图像的一部分,则函数的解析式为( )(A )3131255y x x =- (B )3241255y x x =-(C )33125y x x =- (D )3311255y x x =-+【答案】 A【解析】AA f x f f x f A f x 选符合只有,,而言,对即为极值点且),三次奇函数过点..053-53)5(53-1253x )(2-3-1)5(∴x 53-x 1251)(.0)5(,5,2-5(),0,0(23==′=′====′= 第二部分(共100分)二、填空题:把答案填写在答题卡相应题号后的横线上(本大题共5小题,每小题5分,共25分).11.已知,lg ,24a x a==则x =________. 【答案】10【解析】.1010,21lg 12a ∴,lg ,224212aa========x a x a x 所以,12.若圆C 的半径为1,其圆心与点)0,1(关于直线x y =对称,则圆C 的标准方程为_______.【答案】11-(22=+)y x 【解析】.11-(1),1,0(∴)1,0()0,1(22=+=)的标准方程为半径为圆心为,的对称点关于点y x x y 设20πθ<<,向量()()sin 2cos cos 1a b θθθ==,,,,若b a //,则=θtan _______.【答案】 21【解析】.21t a n θθ,cos θcos θsin 2θcos θ2sin ∴//).1,θ(cos ),θcos ,θ2(sin 22=====解得即 14.猜想一般凸多面体中,E V F ,,所满足的等式是_________. 【答案】 2+=+E V F 【解析】.2+=+E V F 经观察规律,可得15.(考生注意:请在下列三题中任选一题作答,如果多做,则按所做的第一题评分).A (不等式选做题)设,,,a b m n R ∈,且225,5a b ma nb +=+=的最小值为.B (几何证明选做题)如图,ABC ∆中,6BC =,以BC 为直径的半圆分别交,AB AC于点,E F ,若2AC AE =,则EF =.C (坐标系与参数方程选做题)在极坐标系中,点(2,)6π到直线sin()16πρθ-=的距离是 【答案】 A 5 B 3 C 1【解析】A5.≤5)φθsin(∴5)φθsin(5os θ5θsin 5,os θ5,θsin 5∴,52222222222的最小值为所以,,则设n m n m n m n m c n m nb ma c b a b a ++=++=++=+=+===+B.3,2,6∴Δ=∴===ΔEF AE AC BC CBEFAC AE ACB AEF ,且相似与 C1|1323-3|023-1,3(∴,2-3121os θρ-23θsin ρ)6π-θsin(ρ,1,3()6π,2(=++==+==••=d y x x y c 的距离)到直线点即对应直线)对应直角坐标点极坐标点 三、解答题:解答应写出文字说明、证明过程或演算步骤(本大题共6小题,共75分) 16. (本小题满分12分)ABC ∆的内角C B A ,,所对的边分别为c b a ,,. (I )若c b a ,,成等差数列,证明:()C A C A +=+sin 2sin sin ; (II )若c b a ,,成等比数列,求B cos 的最小值. 【答案】 (1) 省略 (2)21【解析】(1)C)sin(A sinC sinA .∴C),sin(A sinB sinC.sinA 2sinB c,a b 2∴,,+=++=+=+= 即成等差,c b a(2).,21cosB 212ac ac -2ac 2ac b -2ac ≥2ac b -c a cosB ac.b ∴,,22222这时三角形为正三角形取最小值时,仅当又成等比,b c a c b a ====+==17. (本小题满分12分)四面体ABCD 及其三视图如图所示,过棱AB 的中点E 作平行于AD ,BC 的平面分 别交四面体的棱CA DC BD ,,于点H G F ,,.(I )证明:四边形EFGH 是矩形;(II )求直线AB 与平面EFGH 夹角 的正弦值.【答案】 (1) 省略 (2)510【解析】 (1).FG.⊥BCD ⊥,//∴,,AD//HG AD//EF,∴ADHG ADEF EFGH ⊂HG EF,EFGH,AD//HC AH EH//BC,∴EHBC EFGH,⊂EH EFGH,//B BCD⊥AD DC,⊥BD Δ,Δ为矩形所以,四边形,即面,且且共面和,面面同理且共面面面面且为等腰由题知,EHGF EF EF HG EF HG EF GC DG FB DF C RT BCD ====(2)510|,cos |sin 510252||||,cos ),0,1,1(0),,,()0,1-1(),2100(),1-20()0,0,1(),211,0(),0,1,0(),020(),100(,,,,(1)=><==<∴=======∴n AB n AB n FG n FE n z y x EHGF G E F B A z y x θ所以,,解得一个则法向量,设面,,,,,,,,,,轴建系,则为知,分别以由18.(本小题满分12分)在直角坐标系xOy 中,已知点)2,3(),3,2(),1,1(C B A ,点),(y x P 在ABC ∆三边围成的 区域(含边界)上(1)若=++,;(2)设),(R n m n m ∈+=,用y x ,表示n m -,并求n m -的最大值.【答案】 (1) 22 (2)m-n=y-x, 1【解析】 (1)22|OP |22|OP |,2,2,0-2-3-1,0-3-2-1(0,0))-2,-3()-3,-2()-1,-1(PC PB PA ∴),,(),2,3(),3,2(),11(22==+=∴===++=++∴=++=++所以,解得,y x y x y y y x x x y x y x y x y x P C B A (2)1---.1-)3,2(.,,-.--.2,2),1,2()2,1(y)x ,(∴,最大值为,所以,取最大值时,经计算在三个顶点求线性规划问题,可以代含边界内的最大值,属在三角形即求解得即n m x y n m x y B C B A ABC x y x y n m n m y n m x n m n m ==+=+=+=+= 19.(本小题满分12分)在一块耕地上种植一种作物,每季种植成本为1000元,此作物的市场价格和这块地上 的产量具有随机性,且互不影响,其具体情况如下表:(1)设X 表示在这块地上种植1季此作物的利润,求X 的分布列;(2)若在这块地上连续3季种植此作物,求这3季中至少有2季的利润不少于...2000元 的概率.【答案】 (1)(800,0.2)(2000,0.5)(4000,0.3) (2) 0.896【解析】 (1)3.06.0*5.0)4000(,5.04.0*5.06.0*5.0)2000(,2.04.0*5.0)800(.4000,2000,80040001000-10*50020001000-6*50020001000-10*3008001000-6*300.-*====+==========X p X p X p X X 三个,即,,,可以取考虑产量和价格,利润成本价格产量利润(2)896.020*******.08.02.0*8.0*3)-1()-1(200023.8.03.05.02000)1(8001000-6*300.-*32333223的概率是季的利润不少于季中至少有所以,的概率季的利润不少于季中至少有则的概率知,一季利润不少于由,可以取考虑产量和价格,利润成本价格产量利润=+=+==+===p p C p p C P p X X20.(本小题满分13分)如图,曲线C 由上半椭圆22122:1(0,0)y x C a b y a b+=>>≥和部分抛物线22:1(0)C y x y =-+≤连接而成,12,C C 的公共点为,A B,其中1C 的离心率为2. (1)求,a b 的值;(2)过点B 的直线l 与12,C C 分别交于,P Q (均异于点,A B ),若AP AQ ⊥,求直线l的方程.【答案】 (1) a=2,b=1 (2) )1-(38-x y =【解析】 (1)14,3,1,2∴,23.1∴)0,1(),0,1-(1-2222222=+===+===+=x yc b a c b a a c b x y 椭圆方程为联立解得又,交于点抛物线 (2))1-(38-.38-,0)2(4-)2,1)(4-,(,0)2k -k - -k,()4k8- 1,44-(,0∴⊥),0,1-()2k --k ,1--k (,2k --k )1-(,1--k 0,1-k -:1-)4k8-,44-(,4k 8-)1-(,44-04-2-)4(,44)12x -(14),,(),,(),1-()0,1(222222222222222112212222222222211x y k k k k k k k k A Q x k y x kx x x y k k k P k x k y k k x k x k x k x x k x y y x Q y x P x k y B ===+=+=•+++=•====++=+++==+==++=++=+=所以,所求直线方程为解得即即即由韦达定理得联立得与即由韦达定理得,即联立得与的直线方程为设过21.(本小题满分14分) 设函数()ln(1),()'(),0f x x g x xf x x =+=≥,其中'()f x 是()f x 的导函数.(1)11()(),()(()),n n g x g x g x g g x n N ++==∈,求()n g x 的表达式;(2)若()()f x ag x ≥恒成立,求实数a 的取值范围;(3)设n N +∈,比较(1)(2)()g g g n +++与()n f n -的大小,并加以证明.【答案】 (1) nx x x g n +=1)((2),1](-∞ (3) 前式 > 后式【解析】 (1)+++++=++=+=++=+++=+==+=+++=+===+=+=′′=+=N n nx xx g xk xx g k n x k x kxx kx xx g kx x x g k n x xxx x xx g x x x g x g g x g x g x g xx x g x x f x x f x x g x x f n k k k n n ∈,1)(,.)1(1)(1∴)1(1111)(.1)(1≥21111)(1)(∴))(()()()(1)(,11)(∴,0≥),()(),1ln()(112111综上也成立时,当则时,假设当,,, (2),1](-a 1.a 0.≥-1),0[∈∃0≥(x)h ,0),,0[∈∃∴0≥0≥h(x),0h(0))1(-1)1()-1(-11(x)h ,0.≥,1-)1ln(h(x)0.≥,≥1-)1ln(∴1)(),(≥)(22∞∈≤+′>=++=+++=′++=+++=所以,解得,即使上恒成立在则令a x t x t t x x x ax x x x a x x x ax x x x axx x x x g x ag x f(3)+∈>++++>>++∴>∈++=+++++++++=+++++••••=++++=+++++=+=+=N n f(n)-n )()3()2()1(0)(,011-n 1n ln .0)()2(],1,0,1 -)1ln()((a) )11-n 1n (ln )311-34(ln )211-23(ln )111-12(ln 11--311-211-111-n 1n 342312ln 11--311-211-111-f(n)f(n)]-[n -)()3()2()1(∴11-11)(∴,1)(,所以,恒成立式恒成立恒成立知,则由(令)(n g g g g a nx h x xxx x h nnnn g g g g nn n n g x x x g。

XXXX高考真题——文科数学(陕西卷)精校版_Word版含答案

XXXX高考真题——文科数学(陕西卷)精校版_Word版含答案

XXXX高考真题——文科数学(陕西卷)精校版_Word版含答案|xxxx全国高校招生统一考试(陕西卷)文科数学注意事项:1。

本试卷分为两部分,第一部分是选择题,第二部分是非选择题。

2。

考生收到试卷后,按照规定,必须在试卷上填写姓名和准考证号,并在答题纸上填写相应的试卷类型信息。

3。

所有答案必须填写在答题纸上的指定区域。

考试结束后,请将试卷和答题卡一起交回。

第一部分(共50分)1。

多项选择题:在每项中给出的四个选项中,只有一个符合问题要求(共10项,每项5分,共50分)1。

将整个集合设置为函数f(x)的R?1?如果x的定义域是m,CRM 是(a) (-∞,1) (b) (1,+∞) (c)(??,1] 2。

已知的矢量A?(1,m),b?(m,2),如果a//b,那么实数m等于(A)?2 (C)?2或2(b)(d)02(d)[1,??)3。

如果a,b,c都是不等于1的正实数,那么logcb由下面的等式建立?对数对数?对数?洛加?c)?logab?Logac4。

根据以下算法语句,当输入X为60时,输出y的值为输入x (a) 25如果x ≤ 50则(b) 30 y = 0.5 * x否则(c)31y = 25+0.6 *(X-50)(d)61结束如果输出y5。

取样测试一批产品的长度(单位:mm ),并给出测试结果的频率分布直方图,如下图所示。

根据标准,产品的长度以[·XXXX年龄为间隔分为5组]。

每组人数如下:D E组人数A组人数B组人数50 100 150 150 50(一)为了调查评委对7名歌手的支持情况,采用分层抽样的方法从每组中选出若干名评委。

从b组抽取了六个人,请填写下表。

(1)中的A、B、c、d、e、50、100、6、150、150、50、、(ii)组的人数,如果A组和B组的两位评委都支持1号歌手,现在从、两位评委中选择一位,找出他们都支持1号歌手的概率(该分数为13分)从已知移动点M(x,y)到直线l:x = 4的距离是它到点N(1,0)的距离的两倍。

陕西高考试题及答案详解

陕西高考试题及答案详解

陕西高考试题及答案详解一、选择题1. 下列关于细胞结构的描述,哪一项是错误的?A. 细胞壁是细胞的外层结构B. 细胞膜具有选择性通透性C. 线粒体是细胞的能量工厂D. 核糖体是细胞内蛋白质的合成场所答案:A2. 根据题目所给的化学方程式,下列哪种反应类型是正确的?A. 合成反应B. 分解反应C. 置换反应D. 氧化还原反应答案:D二、填空题1. 请填写下列生物分类的层级顺序:界、门、____、科、属、种。

答案:纲2. 根据题目所给的物理公式 \( F = ma \),其中 \( F \) 表示力,\( m \) 表示质量,\( a \) 表示加速度。

若已知 \( m = 5 \) 千克,\( a = 2 \) 米/秒²,求力 \( F \) 的值。

答案:10牛顿三、简答题1. 请简述光合作用的过程及其意义。

答案:光合作用是植物、藻类和某些细菌通过叶绿素等色素吸收光能,将二氧化碳和水转化为有机物(如葡萄糖)和氧气的过程。

它的意义在于为生物体提供能量和氧气,是地球上生命活动的基础。

2. 请解释牛顿第三定律及其在日常生活中的应用。

答案:牛顿第三定律指出,对于两个相互作用的物体,作用力和反作用力大小相等、方向相反。

在日常生活中,例如当我们推墙时,墙也会对我们施加一个相等大小、方向相反的力。

四、计算题1. 已知某物体从静止开始做匀加速直线运动,加速度为 4 米/秒²,经过 3 秒后的速度为多少?答案:首先,根据速度公式 \( v = at \),其中 \( v \) 为速度,\( a \) 为加速度,\( t \) 为时间。

代入已知数值,\( v = 4\times 3 = 12 \) 米/秒。

2. 一个物体从高度 \( h = 20 \) 米自由落下,忽略空气阻力,求落地时的速度。

答案:根据自由落体的速度公式 \( v = \sqrt{2gh} \),其中\( g \) 为重力加速度,取 \( g = 9.8 \) 米/秒²。

高考卷,普通高等学校招生全国统一考试,文科数学(必修+选修Ⅰ)(陕西卷)(附答案,完全word版)

高考卷,普通高等学校招生全国统一考试,文科数学(必修+选修Ⅰ)(陕西卷)(附答案,完全word版)

高考卷 , 一般高等学校招生全国一致考试, 文科数学(必修+选修Ⅰ)(陕西卷)(附答案,完整word 版)高考卷 , 一般高等学校招生全国一致考试 , 文科数学(必修 +选修Ⅰ)(陕西卷)(附答案,完整 word 版)综合文章时间: _-_-29_年一般高等学校招生全国一致考试(陕西卷)文科数学(必修 +选修Ⅰ)一、选择题:在每题给出的四个选项中,只有一项为哪一项切合题目要求的(本大题共 _小题,每题 5 分,共 60 分). 1 .等于( B )A. B . C. D . 2 .已知全集,会合,,则会合( D )A .B . C. D . 3 .某林场有树苗棵,此中松树苗 4_0 棵.为检查树苗的生长状况,采纳分层抽样的方法抽取一个容量为 _0 的样本,则样本中松树苗的数目为(C )A.30 B .25 C._ D._ 4 .已知是等差数列,,,则该数列前 _项和等于( B )A A .64B .1_ C.1_ D._0 5 .直线与圆相切,则实数等于( A ).或 B .或C .或D .或 6 .“”是“对随意的正数,”的( A )A .充足不用要条件B .必需不充足条件C .充要条件 D.既不充足也不用要条件7 .已知函数,是的反函数,若(),则的值为( D )A ._ B.4 C.1 D. 8 .长方体的各极点都在半径为 1 的球面上 , 此中 , 则两点的球面距离为 ( C ) A.B.C.D.9.双曲线(,)的左、右焦点分别是,过作倾斜角为的直线交双曲线右支于点,若垂直于轴,则双曲线的离心率为( B )A. B . C. D . _ .如图,到的距离分别是和,与所成的角分别是和,在内的射影分别是和,若,则( D )A B a b l A.B.C.D._.定义在上的函数知足(),,则等于(A)A.2 B .3 C. 6 D. 9 _ .为提升信息在传输中的抗扰乱能力,往常在原信息中按必定规则加入有关数据构成传输信息.设定原信息为(),传输信息为,此中,运算规则为:,,,,比如原信息为 _1,则传输信息为 __1.传输信息在传输过程中受到扰乱可能致使接收信息犯错,则以下接收信息必定有误的是( C )A. B . _1_ C. D .__1 二、填空题:把答案填在答题卡相应题号后的横线上(本大题共 4 小题,每题 4 分,共 _分)._ .的内角的对边分别为,若,则._ .的睁开式中的系数为 84 .( 用数字作答 ) _ .对于平面向量.有以下三个命题:①若,则.②若,,则.③非零向量和知足,则与的夹角为.此中真命题的序号为②.(写出全部真命题的序号)_ .某地奥运火炬接力传达路线共分 6 段,传达活动分别由 6 名火炬手达成.如果第一棒火炬手只好从甲、乙、丙三人中产生,最后一棒火炬手只好从甲、乙两人中产生,则不一样的传达方案共有 96 种.(用数字作答).三、解答题:解答应写出文字说明,证明过程或演算步骤(本大题共 6 小题,共 74 分)_ .(本小题满分 _分)已知函数.(Ⅰ)求函数的最小正周期及最值;(Ⅱ)令,判断函数的奇偶性,并说明原因. _ .解:(Ⅰ).的最小正周期.当时,获得最小值;当时,获得最大值 2.(Ⅱ)由(Ⅰ)知.又...函数是偶函数. _ .(本小题满分 _分)一个口袋中装有大小同样的 2 个红球 ,3 个黑球和 4 个白球 , 从口袋中一次摸出一个球 , 摸出的球不再放回 . (Ⅰ)连续摸球 2 次 , 求第一次摸出黑球 , 第二次摸出白球的概率;(Ⅱ)假如摸出红球 , 则停止摸球 , 求摸球次数不超出 3 次的概率.解:(Ⅰ)从袋中挨次摸出 2 个球共有种结果,第一次摸出黑球、第二次摸出白球有种结果,则所求概率.(Ⅱ)第一次摸出红球的概率为,第二次摸出红球的概率为,第三次摸出红球的概率为,则摸球次数不超出 3 次的概率为._.(本小题满分_分)三棱锥被平行于底面的平面所截得的几何体如下图,截面为,,平面,,,为中点. A1 A C1 B1 B D C(Ⅰ)证明:平面平面;(Ⅱ)求二面角的大小.【解法一】(Ⅰ)∵ ,∴ . 在 RT中, AB=AC,D为BC中点,∴ BC⊥A D,又∴,∴ . (Ⅱ)如图,作 AE⊥交于 E 点,连结BE,由已知得 AB⊥平面,∴ AE是 BE在平面内的射影,由三垂线定理知 , ∴ ∠AEB 是二面角的平面角 . 过,则 CF=AC-AF=1,∴ . 在 RT 在 RT ∴,即二面角为 . 【解法二】(Ⅰ)如图,成立空间直角坐标系,则 A(0,0,0) ,B(2,0,0) ,C(0,2,0) ,∵D为 BC的中点,∴ D点坐标为( 1,1,0). ∴ ∵ ∴ BC⊥AD,∴ , ∴(Ⅱ)∵BA⊥平面 , 如图,可取为平面的法向量 , 设平面的法向量为如图,可取 m=1,则∴二面角 _ .(本小题满分 _分)已知数列的首项,,.(Ⅰ)证明:数列是等比数列;(Ⅱ)数列的前项和.解:(Ⅰ),,,又,,数列是认为首项,为公比的等比数列.(Ⅱ)由(Ⅰ)知,即,.设,①则,② 由①②得,.又.数列的前项和. _ .(本小题满分 _分)已知抛物线:,直线交于两点,是线段的中点,过作轴的垂线交于点.(Ⅰ)证明:抛物线在点处的切线与平行;(Ⅱ)能否存在实数使,若存在,求的值;若不存在,说明原因.解法一:(Ⅰ)如图,设,,把代入得, _ A y 1 1 2 MN B O 由韦达定理得,,,点的坐标为.设抛物线在点处的切线的方程为,将代入上式得,直线与抛物线相切,,.即.(Ⅱ)假定存在实数,使,则,又是的中点,.由(Ⅰ)知.轴,.又.,解得.即存在,使.解法二:(Ⅰ)如图,设,把代入得.由韦达定理得.,点的坐标为.,,抛物线在点处的切线的斜率为,.(Ⅱ)假定存在实数,使.由(Ⅰ)知,则,,,解得.即存在,使. _ .本小题满分 _分)设函数此中实数.(Ⅰ)若,求函数的单一区间;(Ⅱ)当函数与的图象只有一个公共点且存在最小值时,记的最小值为,求的值域;(Ⅲ)若与在区间内均为增函数,求的取值范围.解:(Ⅰ),又,当时,;当时,,在和内是增函数,在内是减函数.(Ⅱ)由题意知,即恰有一根(含重根).≤,即≤≤,又,.当时,才存在最小值,.,.的值域为.(Ⅲ)当时,在和内是增函数,在内是增函数.由题意得,解得≥;当时,在和内是增函数,在内是增函数.由题意得,解得≤;综上可知,实数的取值范围为.高考卷 , 一般高等学校招生全国一致考试数学(全国Ⅰ·理科)(附答案,完整word 版)高考卷 ,_ 届 , 一般高等学校招生全国一致考试数学(全国Ⅰ·文科)(附答案,完整 word 版)高考卷 ,_, 一般高等学校招生全国一致考试数学(湖北卷·文科)(附答案,完全 word 版)高考卷 ,_, 一般高等学校招生全国一致考试数学(广东卷·文科)(附答案,完全 word 版)高考卷 , 一般高等学校招生全国一致考试, 理科数学(山东卷)(附答案,完整 word 版)。

年高考语文(陕西卷)WORD解析版

年高考语文(陕西卷)WORD解析版

2013年普通高等学校招生全国统一考试陕西卷—语文第Ⅰ卷阅读题甲必考题一、现代文阅读(9分,每小题3分)阅读下面的文字,完成1~3题老子其人其书的时代,自司马迁《史记》以来只有异说,清代学者崇尚考据,对此议论纷纷,如汪中作《老子考异》,力主老子为战国时人,益启争端。

钱穆先生说:“老子伪迹不彰,真相大白,则先秦诸子学术思想之系统条贯始终不明,其源流派别终无可言.”大家都期待这个问题有新的解决线索。

过去对于古书真伪及年代的讨论,只能以材料证明纸上材料,没有其它的衡量标准,因而难有定论。

用来印证《老子》的古书,大多收到辨伪家的怀疑,年代确不可移的,恐怕要数到《林非子》。

《吕氏春秋》和《淮南子》,但这几木书戍书太晚,没有多少作用.近年战国秦汉简帛侠籍大黄出上,为学术界提供了许多前所未见的地下材料,这使我们有可能重新考虑《老子》的时代问题。

1973牛长沙马王堆三亏汉基出土的串书,内有《老子》两种版本,甲本字体比较早,不避汉高祖讳,应抄写于高祖即帝位前,乙本避高祖讳,可以抄写于文帝初。

这两本《老子》抄写年代都晚,无益于《老子》著作年代的推定,但乙本前面有《黄帝书》四篇,系。

黄”、“老”合抄之本,则从根本上改变了学术界对早期道家的认识。

郭沐若先生曾指出,道家都是以“发明黄老道德意”为其指归,故也可称之为黄老学派.《老子》和《黄帝书》是道家的经典,在汉初被妙写在《老子》前面的《黄帝书》显然在当时公众心目中已据有崇高位置,不会是刚刚撰就的作品。

同时,《黄帝书》与《申子》、《慎子》、《韩非子》等有许多共通文句,而申不害、慎到、韩非二人均曾学黄老之术,这些共通之处可认作对《皇帝书》的引用阐发。

申不害和慎到的年代,前人推为战国中期,《皇帝书》不应更晚。

至于《皇帝书》与《老子》的共通之处也甚多,入《皇帝书·经法》篇云“王天下者有玄德”,什么是“玄德。

”文中未见解释,查《老子》五十一章:“生而不有,为而不持,长而不宰,之谓玄德。

陕西省2024年高考试题及答案

陕西省2024年高考试题及答案

陕西省2024年高考试题及答案一、单项选择题(本题共10小题,每小题3分,共30分)1. 下列哪个选项是陕西省的省会城市?A. 西安B. 成都C. 兰州D. 郑州答案:A2. 以下哪位诗人是唐代的?A. 李白B. 苏轼C. 辛弃疾D. 王安石答案:A3. 根据中国历史,秦始皇统一六国的时间是?A. 公元前221年B. 公元前202年C. 公元前221年D. 公元202年答案:A4. 以下哪个选项不是陕西省的著名景点?A. 兵马俑B. 华山C. 故宫D. 华清池答案:C5. 以下哪种植物是陕西省的省花?A. 牡丹B. 玫瑰C. 菊花D. 荷花答案:A6. 以下哪个选项是陕西省的简称?A. 陕B. 秦C. 晋D. 鲁答案:A7. 以下哪位科学家是陕西省的?A. 牛顿B. 爱因斯坦C. 钱学森D. 霍金答案:C8. 以下哪个选项是陕西省的著名小吃?A. 肉夹馍B. 煎饼果子C. 灌汤包D. 火锅答案:A9. 以下哪个选项是陕西省的著名历史事件?A. 红军长征B. 抗日战争C. 辛亥革命D. 五四运动答案:A10. 以下哪个选项是陕西省的著名历史人物?A. 秦始皇B. 孔子C. 孙中山D. 毛泽东答案:A二、填空题(本题共5小题,每小题4分,共20分)1. 陕西省位于中国的______部。

答案:西北2. 陕西省的省会城市西安,是中国历史上的______个朝代的都城。

答案:十三3. 陕西省的省花牡丹,被誉为“______”。

答案:花中之王4. 陕西省的著名景点兵马俑,位于西安市的______区。

答案:临潼5. 陕西省的著名小吃肉夹馍,是陕西省______市的特色。

答案:咸阳三、简答题(本题共2小题,每小题10分,共20分)1. 简述陕西省的地理位置及其在中国历史中的重要性。

答案:陕西省位于中国西北地区,东邻山西、河南,西连宁夏、甘肃,南抵四川、重庆、湖北,北接内蒙古。

陕西省是中国历史上的重要省份,曾是多个朝代的都城,拥有丰富的历史文化遗产,如兵马俑、大雁塔等,对中国历史的发展产生了深远影响。

2024陕西高考试题真题及答案

2024陕西高考试题真题及答案

2024陕西高考试题真题及答案一、语文1. 阅读下面的文字,完成下列各题。

(1)下列词语中,加点字的读音全都正确的一项是:A. 绯红(fēi)恣意(zì)蹉跎(cuō)怏怏不乐(yàng)B. 蹒跚(pán)旌旗(jīng)颔首(hàn)呱呱坠地(gū)C. 踌躇(chóu)缄默(jiān)桎梏(gù)锃光瓦亮(zèng)D. 潦草(liáo)踯躅(zhú)箴言(zhēn)栩栩如生(xǔ)答案:C2. 下列各句中,没有语病的一项是:A. 通过这次活动,使我们对环保有了更深刻的认识。

B. 他虽然学习成绩优异,但是热爱劳动,乐于助人。

C. 为了防止这类事故不再发生,我们必须采取有效措施。

D. 他那和蔼可亲的笑容,至今还深深地印在我的脑海中。

答案:D二、数学1. 已知函数f(x) = 2x^2 - 4x + 1,求f(x)的最小值。

答案:f(x)的最小值为-1,当x=1时取得。

2. 解方程:3x^2 - 5x - 2 = 0。

答案:x = 2 或 x = -1/3。

三、英语1. 单选题:The book is said ________ a bestseller.A. to writeB. to be writtenC. to beD. to have been written答案:C2. 阅读理解:阅读下列短文,回答3-5题。

[短文内容省略]3. What is the main idea of the passage?A. The importance of reading.B. The benefits of exercise.C. The impact of technology on education.D. The role of parents in children's development.答案:D4. According to the passage, which of the following is NOTa reason for children's poor performance in school?A. Lack of sleep.B. Poor diet.C. Excessive use of technology.D. Good relationship with parents.答案:D5. What does the author suggest parents should do to helptheir children?A. Limit the use of technology.B. Encourage physical activities.C. Provide a healthy diet.D. All of the above.答案:D以上为2024陕西高考部分真题及答案示例。

2017年陕西高考试题及答案word版

2017年陕西高考试题及答案word版

2017年陕西高考试题及答案word版一、语文试题1. 阅读下面的文言文,完成下列各题。

(1)解释文中划线词语的含义。

A. 觥筹交错B. 箪食瓢饮(2)翻译文中划线句子。

A. 子曰:“学而时习之,不亦说乎?”B. 孟子曰:“天将降大任于斯人也,必先苦其心志,劳其筋骨。

”2. 现代文阅读(1)分析文章中主人公的心理变化。

(2)文章中运用了哪些修辞手法,并举例说明其作用。

3. 作文请以“我眼中的家乡”为题,写一篇不少于800字的文章。

二、数学试题1. 选择题(1)下列函数中,哪一个是奇函数?A. f(x) = x^2B. f(x) = x^3C. f(x) = sin(x)D. f(x) = cos(x)2. 填空题(1)计算极限:lim (x→0) [(x^2 + 1) / (x^2 - 1)]。

(2)解方程:2x^2 - 5x + 2 = 0。

3. 解答题(1)证明:若a > b > 0,则a^2 > b^2。

(2)求曲线y = x^3 - 3x^2 + 2x在点(1,0)处的切线方程。

三、英语试题1. 阅读理解阅读下列短文,回答文后问题。

2. 完形填空阅读下列短文,从每题所给的选项中选择最佳答案填空。

3. 写作以“环境保护”为主题,写一篇不少于120词的短文。

四、综合试题1. 物理(1)选择题A. 光的折射现象说明了光在不同介质中的传播速度不同。

B. 电磁感应现象是由变化的磁场产生的。

(2)计算题计算一个物体在自由落体运动中,从10米高处落到地面所需的时间。

2. 化学(1)选择题A. 元素周期表中,同一周期的元素具有相同的电子层数。

B. 化学反应中,质量守恒定律是基本定律之一。

(2)实验题描述实验室中制备氢气的过程。

3. 生物(1)选择题A. DNA是遗传信息的主要载体。

B. 细胞分裂过程中,染色体数量会加倍。

(2)简答题简述光合作用的过程。

五、答案1. 语文1.(1)A. 觥筹交错:形容宴会上酒杯交错,气氛热烈。

2018-2019-陕西高考试题-范文模板 (19页)

2018-2019-陕西高考试题-范文模板 (19页)

本文部分内容来自网络整理,本司不为其真实性负责,如有异议或侵权请及时联系,本司将立即删除!== 本文为word格式,下载后可方便编辑和修改! ==陕西高考试题篇一:201X陕西高考理科综合试题及答案201X陕西高考理科综合试题及答案篇二:201X年陕西高考数学(理科)试题及答案(word版)201X年普通高等学校招生全国统一考试(陕西卷)理科数学一、选择题(本大题共12个小题,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.)1.1.设集合M?{x|x2?x},N?{x|lgx?0},则MN?()A.[0,1]B.(0,1]C.[0,1)D.(??,1]【答案】A 2试题分析:??xx?x??0,1?,??xlgx?0?x0?x?1,所以??????? ???0,1?,故选A.考点:1、一元二次方程;2、对数不等式;3、集合的并集运算.【分析及点评】本题主要考察了集合的表示及其相关运算,并结合一元二次方程以及对数运算,属于基础题型,难度不大。

2.某中学初中部共有110名教师,高中部共有150名教师,其性别比例如图所示,则该校女教师的人数为()A.167 B.137 C.123 D.93【答案】B考点:扇形图.【分析及点评】本题主要考察了统计以及统计图表的相关知识,难度系数很小,属于基础题型。

3.如图,某港口一天6时到18时的水深变化曲线近似满足函数y?3sin(可知,这段时间水深(单位:m)的最大值为()A.5 B.6 C.8 D.10 ?6x??)?k,据此函数【答案】C试题分析:由图象知:ymin?2,因为ymin??3?k,所以?3?k?2,解得:k?5,所以这段时间水深的最大值是ymax?3?k?3?5?8,故选C.考点:三角函数的图象与性质.【分析及点评】本题重在转化,将实际问题转化成三角函数问题,对三角函数的图像、性质有较高要求,但作为基础题型,难度不大。

2n4.二项式(x?1)(n?N?)的展开式中x的系数为15,则n?()A.4B.5C.6D.7【答案】C考点:二项式定理.【分析及点评】本题主要考察了学生对二项式定理的理解,以及二项式系数的计算,难度不大,属于基础题型。

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2009年普通高校招生统一考试陕西卷(英语)英语知识应用(共三大题,满分50分)语音知识(共5小题,每小题1分,满分5分)从每小题的A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项,并在答题卡上将该选项涂黑。

1.permitA.first B.behind C.island D. smile2.questionA.revolution B.exhibition C.suggestion D.education3.emptyA.toilet B.dozen C.general D.connect4.socialA.precious B.certain C.discovery D.Decision5.forgetA.ordinary B.major C.world D.Report(二)语法和词汇知识(共15小题,每小题1分,满分15分)从每小题的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项涂黑。

6.What____ pity that you couldn’t be there to receive____ prize!A.a;a B.the;a C.a;the D.the;the7.Dr.Smith, together with his wife and daughters, ______visit Beijing this summer.A.is gong to B.are going to C.was going to D.were going to8.He invited me to a dance after the show____ Christmas Eve.A.at B.on C.in D.by9.This is the first time we______ a film in the cinema together as a family.A.see B.had seen C.saw D.have seen10.Jane was asked a lot of questions, but she didn’t answer_____ of them.A.other B.any C.none D.some11.Gun control is a subject ____ Americans have argued for a long time.A.of which B.with which C.about which D.into which12.I still remember _______to the Famen Temple and what I saw there.A.to take B.to be taken C.taking D.being taken13.My parents don’t mind what job I do _________ I am happy.A.even though B.as soon as C.as long as D.as though14.--My mother is preparing my favorite dishes, Go with me and have a taste, okay?--_______. And I’ll be glad to meet your parents.A.I think so B.I’d love to C.I’m sure D.I hope so15.A notice was _____in order to remind the students of the changed lecture time.A.sent up B.given up C.set up D.put up16.He must be helping the old man to water the flowers,_______?A.is he B.isn’t he C.must he D.mustn’t he17.The bow-to book can be of help to _______ wants to do the job.A.who B.whomever C.no matter who D.whoever18.Little _______ about her own safety, though she was in great danger herself.A.did Rose care B.Rose did care C.Rose does care D.does Rose care 19.--Have you finished your first paper?--_______, Just half of it, how about you?A.Not at all B.Not likely C.Not a bit D.Not yet20.From their _____on the top of the TV Tower, visitors can have a better view of the city.A.stage B.position C.condition D.situation(三)完形填空(共20小题,每小题1.5分,满分30分)阅读下面短文,从短文后各题的A、B、C、D四个选项中,选取出适合填入空白处的最佳选项,并在答题卡上将该选项涂黑。

One afternoon,my son Adam asked me,“Are all people the same even if they are different in color?”I thought for a minute,and then I said,“I’ll explain, _21_ you can just wait until we make a quick 22 at the grocery store. I have something 23 to show you."At the grocery store,we 24 some apples—red,green and yellow ones.Back home.I told Adam,"It’s time to 25 your question.”I put one apple of each 26 on the table.Then I looked at Adam, who had a 27 look on his face.“People are like apples.They come in all 28 colors,shapes and sizes.On the 29 ,some of the apples may not 30 look as delicious as the others.”As I was talking, Adam was 31 each one carefully.Then, I took each of the apples and peeled(削皮)them, 32 them back on the table, but 33 a different place.“okay, Adam, tell me which is which.”He said, “I 34 tell. They all look the same now.” “Take a bit e of 35 . See if that helps you 36 which one is which.”He took 37 , and then a huge smile came across his face. “People are 38 like apples! They are all different, but once you 39 the outside, they’re pretty much the same on the inside.”He totally 40 it. I didn’t need to say or do anything else.21.A.although B.so C.because D.if22.A.stop B.start C.turn D.stay 23.A.expressive B.encouraging C.informative D.interesting 24.A.bought B.counted C.saw D.collected25.A.check B.mention C.answer D.improve26.A.size B.type C.shape D.class27.A.worried B.satisfied C.proud D.curious28.A.ordinary B.normal C.different D.regular29.A.outside B.whole C.table D.inside30.A.still B.even C.only D.ever31.A.examining B.measuring C.drawing D.packing32.A.keeping B.placing C.pulling D.giving33.A.on B.toward C.for D.in34.A.mustn’t B.can’t C.shouldn’t D.needn’t35.A.each one B.each other C.the other D.one other36.A.admit B.consider C.decide D.believe37.A.big bites B.deep breaths C.a firm hold D.a close look38.A.just B.always C.merely D.seldom39.A.put away B.get down C.hand out D.take off40.A.made B.took C.got D.did二、阅读理解(共25小题,阅读部分每小题2分,补全对话每小题1分,满分45分)(一)阅读下列五篇短文,从每小题后所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该选项涂黑。

AIt was the first snow of winter – an exciting day for every child but not for most teachers. Up until now, I had been old enough to dress myself, but today I would need some help. Miss Finlayson, my kindergarten teacher, had been through first snow days many times, but I think she may still remember this one.I managed to get into my wool snow trousers. But I Struggled with my jacket because it didn’t fit well. It was a hand-me-down from my brother, and it made me wonder why I had to wear his ugly clothes. At least my hat and scarf were mine, and they were quite pretty. Finally it was time to have Miss Finlayson help me with my boots(靴子).In her calm, motherly voice she said, “By the end of winter, you wi ll all be able to put on your own boots.” I didn’t realize at the time that this was more a statement of hope than of confidence(信心).I handed her my boots and stuck out my foot. Like most children, I expected grown-ups to do all the work. After much pushing, she managed to get the first one into place and then, with a sigh, worked the second one on too.I announced, “They’re on the wrong feet.”She struggled to get the boots off and went through the joyless task of putting them on again.“They’re my brother’s boots, you know,” I said. “I hate them!”Somehow, from long years of practice, she managed to act as though I wasn’t an annoying (烦人的)little girl, She pushed and pushed, less gently this time. With a greater sigh, seeing the end of her struggle with me, she asked, “Now, where are your mittens(连指手套)?”I looked into her eyes and said, “I didn’t want to lose them, so I hid them in the toes of my boots.”41.The little girl was more satisfied with her__________.A.trousers B.jacket C.boots D.hat42.Miss Finlayson had difficulty with the girl’s boots mainly because_____.A.the girl got them from her brother B.the girl put something in themC.they were on the wrong feet D.they did not fit the girl well43.Why does the author say Miss Finlayson would remember that first snow day?A.Because the little girl was in her brother’s clothes.B.Because it was the most exciting day of the winter.C.Because the little girl played a trick on her.D.Because the little girl wore a pretty scarf.44.We can learn from the text that Miss Finlayson_________.A.was losing confidence in the little girlB.gradually lost patience with the little girlC.because disappointed with the little girlD.was getting bored with the little girlBWhen people hear a president speak, they seldom think about others helping to shape the presentation(报告). Today, however, presidents depend on writers such as J. Terry Edmonds to help them communicate(交流)effectively. Edmonds is the first African American ever to work as a full-time speechwriter for a U.S. president; he is also the first African American to serve as director of speechwriting for the White House. His is an all-American story of success.Edmonds grew up in Baltimore, Maryland; his father drove a truck, and his mother worked as a waitress. A great reader, Edmonds showed a gift for writing at his high School, Baltimore City College. After graduating in 1967, Edmonds went on to Morgan State University.Edmonds began his career in business, with jobs in public relations and communications, He joined the world of politics as news secretary for his congressman (国会议员) from Baltimore, During Bill Clinton’s presidency, he worked speeches for Health and Human Ser vices Secretary Donna Shalala and worked in a number of jobs in the White House and in governmental departments. President Clinton then appointed (任命) him to the office of director of speechwriting, Following the 2000 elections, Edmonds returned to Morgan State University as the school’s special assistant to the president for 2001-2002.45. Which of the following statements is TRUE according to the text?A. Edmonds proved himself to be good at writing at high school.B. Edmonds graduated from Morgan State University in 1967.C. Edmonds was the first full-time speechwriter.D. Edmonds served the White House after 2000.46. Edmonds entered the world of politics first asA. news secretary for a congressmanB. a speechwriter for President ClintonC. news secretary in the White HouseD. a speechwriter for Secretary Donna Shalala47. The text is most likely to be found in a book aboutA. popular scienceB. historical eventsC. successful peopleD. political systemsC“Old wives tales” are beliefs passed down from one generation to another, For Example, most of us remember our parents’ telling us to eat more of certain foods or not to do certain things. Is there any truth in these teachings? Some of them agree with present medical thinking, but others have not passed the test of time.Did your mother ever tell you to eat your carrots because they are good for your eyes? Scientists now report that eating carrots can help prevent a serious eye disease called macular degeneration. Eating just one carrot a day can reduce the possibility of getting this disease by 40%. Garlic (蒜) is good for you, too. It can kill the type of virus that causes colds.Unfortunately, not all of Mom’ s advice passed the test of medical studies, For example,generations of children have been told not to go swimming within an hour after eating. But research suggests that there is no danger in doing so. Do sweets cause tooth problems? Well, yes and no. Sticky sweets made with grains tend to cause more problems than sweets made with simple sugars.Even though science can tell us that some of our traditional beliefs don’t hold water, there is still a lot of truth in the old wives’ tales. After all, much of this knowledge has been accumulated (积累) from thousands of years of experience in family health care. We should respect this body of knowledge even as we search for clear scientific support to prove it true or false.48. Which of the following is TRUE according to the test?A. Eating garlic is good for our eyes.B. Sticky sweets are damaging to our teeth.C. Swimming after a meal is dangerous.D. Carrots prevent people from catching colds.49. The author develops the third paragraph mainly .A. by cause and effectB. by order in spaceC. by order in timeD. by examples50. The phrase “hold water” in the last paragraph most probably means”_____”.A. to be believableB. to be valuableC. to be admirableD. to be suitable51.What is the author’s attitude toward “old wives tales” in the text?A. SubjectiveB. ObjectiveC. DissatisfiedD. CuriousDBrian arrived at the San Francisco airport two hours before the flight to Paris. He was wearing three shirts, a jacket, two pairs of socks, a pair of shorts, and two pairs of jeans. He was carrying one small backpack, which was very full, but he didn’t have any other luggage. Brian needed to meet a man named Tony before he checked in for his flight. He found Tony near the Air France counter. Tony gave him a round-trip ticket and a small package.“Give this package to Jean-Paul at the airport in Paris. He will have a sign with your name on it. I think you can find him easily ,” Tony said, ”You don’t have any luggage, right?”“Only this backpack,” Brian answered. ”You said I could bring one carry-on bag.”“That’s right. One carry-on bag is fine. Have a good trip.”“Thanks.”Is Brian a criminal(罪犯)? Not at all. He is an air-courier. And he paid only $110 for the round-trip ticket to Paris. Air couriers get cheap airline tickets because they take important packages and papers to foreign countries. Businesses sometimes need to get packages and papers to people in foreign countries by the next day. Often, the only way they can do this is to use an air-courier company. It is not cheap for a business to send a package with an air courier, but it is quick.Every year about 80,000 people worldwide travel as air couriers. The number of tickets for courier travel is growing by about 10 percent a year. However, air-courier travel isn’t for everyone. But if you have very little money, can be flexible(灵活的) about your travel plans, and don’t mind wearing the same clothes for a week, it can be a great way to take a vacation!52.Why was Brian wearing so many clothes for his travel?A. Because they were the uniforms for air couriers.B. Because that made him easier to be recognized.C. Because his backpack had no room his clothes.D. Because he did not have any luggage with him53. An air courier is a person who_________A .manages a business company in foreign countriesB. organizes international flights for touristsC. travels around the world with cheap ticketsD delivers papers and packages to foreign countries.54. Business choose the air-courier service because_____.A. it costs lessB. it is flexibleC. it saves timeD. it grows fast55. One of the disadvantages of traveling as an air courier is that he_____.A. cannot decide when and where to travelB. cannot take any luggage with himC. has to wear two pairs of jeansD .saves little money from the travel56. The author of the text mainly______.A. describes the activities of a law-breakerB. suggests an ideal way to travelC. argues against the air-courier travelD. tells us about a developing businessESuccessful people in international business understand the cultures of other countries and learn to change their practices in different cultures. They understand the importance of avoiding business decisions based on misconceptions-mistaken ideas.One cause of misconceptions is ethnocentrism, the belief that one’s own culture’s way of doing things is better than the way of other cultures. It’s ethnocentrism that leads to failure in international business. To avoid ethnocentris m, it’s necessary to study the different elements(组成部分) of culture: language, values and attitudes ,and customs and manners.LanguageA knowledge of the local language can help international business people in four ways. First, people can communicates directly. Second, people are usually more open in their communication With someone who speaks their language. Third, an understanding of the language allows people to infer meanings that are not said directly. Finally, knowing the language helps people to understand the culture better.Values and AttitudesValues are people’s basic beliefs about the difference between right and wrong, good and bad. An attitude is way of thinking or acting. Values and attitudes influence international business. For Example, many people in the United States believe that chocolate from Switzerland is better than chocolate from other countries, and they buy a lot of it.Customs and MannersCustoms are common social practices. Manners are ways of acting that the society believes are polite. For example, in the United States, it is custom to have salad(色拉) before the main course at dinner, not after. It’s not acceptable to talk with food in mouth at table. Failure tounderstand the customs and manners of other countries will bring difficulty selling their products. Orange juice as a breakfast drink of an American company in France doesn’t sell well because the French don’t usually drink juice with breakfast.57. A knowledge of the local language allows international business people __________.A. to be more open with their customersB. to communicate without outside helpC. to express their thoughts indirectlyD. to have a better idea of their own culture58. The act of many people buying chocolate of Switzerland shows the role of __________.A. mannersB. valuesC. attitudesD. customs59. What would be the best title for the text?A. Misconceptions in BusinessB. Basic Beliefs in BusinessC. International Business CultureD. Successful International Business60. The author’s purpose of writing this article is to tell people _________.A. how to take a right attitude in businessB. how to avoid misunderstandings in businessC. how to use a local language in businessD. how to act politely and properly in business(二)根据对话情景内容,从对话后所给的选项中选出能填入每一空白处的最佳选项。

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