2009年高考试题——数学理(宁夏卷)Word版缺答案

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2009宁夏高考数学试题答案(理数)

2009宁夏高考数学试题答案(理数)

工商管理专业学位外语考试模拟试题(1)2004.12一、语音题(每空1分,共10分)1、breach A. break B. theatre C. meadow D. least2、notice A. stomachs B. houses C. mouths D. reasonable3、opposite A. companion B. balloon C. stroll D. historic O:4、scatter A. laboratory B. separate C. gravity D. various5、twinkle A. windy B. drink C. footprint D. interesting6、shook A. shoot B. food C. shoe D. wood7、occasionally A. population B. Russian C. question D. television8、pressure A. directly B. oxygen C. absence D. camera9、float A. flower B. brown C. hometown D. bellows10、bulletin A. bury B. Prussian C. bullet D. punishment二、单选题(每空1.5分,共30分)11、Y ou are lucky since you've never ____anything in your life.A. lostB. gotC. stolenD. found12、W ould you please help me to ____up the present for the old gentleman?A. wrapB. tieC. coverD. send13、Since your supervisor has _____ the time for a talk, you must make sure that you will be there on time.A. predictedB. specifiedC. yieldedD. classified14、His _____ handwriting resulted from haste and carelessness rather than from the inability to form the letters correctly.A. unreadableB. beautifulC. carefulD. undecided15、My friend was full of _____ for the way in which I had so quickly learned to drive a car.A. prideB. surpriseC. admirationD. jealousy16、What time does my flight leave ____Tuesday?A. atB. inC. byD. on17、It has been a long time _____I saw you last time.A. sinceB. forC. beforeD. after18、What are you doing? I'm _____the bedroom for my wallet.A. lookingB. findingC. searchingD. searching for19、The little girl woke up screaming because she had had a_____.A. daydreamB. nightmareC. fantasyD. sweet dream20、The manager ___that the new employees go through professional training before they started working.A. persistedB. insistedC. resistedD. assisted21、She talked to him for a long time and ___him from doing that dangerous job.A. persuadedB. dissuadedC. overcameD. conquered22、The textile industry _____ greatly to the economy of Hong Kong.A. addsB. amountsC. contributesD. leads23、They decided to chase the cow away ______ it did more damage.A. unlessB. untilC. beforeD. what24、All _______ is a continuous supply of the basic necessities of life.A. what is neededB. for our needsC. the thing neededD. that is needed25、The manufacturers _____ carried out one of the Chairman's proposals, but they didn't.A. must haveB. couldn't haveC. ought to haveD. shouldn't have26、They are believed ____ in their experiment.A. to have already succeededB. to succeed alreadyC. to be succeededD. to be succeed27、Y ou ought not to ____ him the news that day.A. tellB. be tellingC. have toldD. had told28、I know you're planning to travel this summer, but do you know_____?A. how much cost it will beB. how much has it costC. how much will it costD. how much it will cost29、Y our little girl is becoming very rude. Y ou _____scold her.A. mayB. canC. oughtD. ought to30、Please listen to me. It's inappropriate for you to persist in ___ this.A. to doB. doC. doingD. having done三、词形变换(每空1分,共5分)31、(explode) Did you hear the terrible __explosion____last night?32、(disappoint) To his great __disappointment___, Mrs. White won't be able to join us in the party this weekend.33、(promote) He looks happy today. I guess he has got a_promotion_____.34、(economic)I am a college student now. My major is__economics___.35、(add)They need_additional__ help to get the work done as planed.四、完形填空(每空1分,共20分)It was the night before the composition was due. As I looked at the list of topics (题目) , "The Art of Eating Spaghetti (意大利面条) " caught my eye. The word "spaghetti" brought back the 36 of an evening at Uncle Alien' s in Belleville 37 all of us were seated around the table and Aunt Pat 38 spaghetti for supper. Spaghetti was an exotic treat in 39 days. Never had I eaten spaghetti, and 40 of the grown-ups had enough experience to be 41 it. What laughing 42 we had about the 43 respectable method for moving spaghetti from plate to mouth. 44 , I wanted to write about that, but I wanted to 45 it down simply for my own 46 , not for Mr. Fleagle, my composition teacher. 47 , I would write something else.When I finished it the night was half gone and there was no 48 left to write a proper composition for Mr. Fleagle. There was no choice next morning but to 49 my work. Two days passed before Mr. Fleagle returned the 50 papers. He said, "Now, class, I want to read you a composition, "The Art of Eating Spaghetti'. "My words! He was reading my words out 51 to the whole class. 52 laughed, then the whole class was laughing with open-hearted enjoyment.I did my best not to show 53 , but what I was feeling was pure happiness, 54 my words had the power to make people 55 .36 A. memory B. thought C. knowledge D. experience37 A. when B. where C. since D. after38 A. cooked B. served C. got D. made39 A. their B. past C. last D. those40 A. none B. one C. earns D. neither41 A. careful about B. good at C. fond of D. interested in42 A. speeches B. lessons C. sayings D. arguments43 A. nearly B. naturally C. officially D. socially44 A. Especially B. Probably C. Suddenly D. Fortunately45 A. settle B. put C. bite D. let46 A. work B. story C. luck D. joy47 A. However B. Therefore C. As for him D. Except for that48 A. time B. excuse C. way D. idea49 A. give up B. continue C. hand in D. delay50 A. written B. graded C. collected D. calmly51 A. loud B. fast C. publicly D. calmly52 A. People B. Nobody C. Somebody D. I53 A. shock B. wonder C. worry D. pleasure54 A. if B. for C. while D. although55 A. excited B. satisfied C. think D. laugh五、阅读理解(每题1分,共20分)(一)Most great inventors in the capitalist society meet with much opposition to their inventions from the people who place their own interests before those of the people. Big monopolies try to buy inventions and turn them to their own profits. When they fail, they resort to other tricks. Inventors have to overcome thousands of difficulties put in their path before they can see their dreams realized.When George Stephenson was experimenting with the stream engine, there was much opposition from the Parliament, the newspaper, and landlords. They claimed that the noise and the smoke would kill cows, horses and sheep, that the engine would burst or that hot coals from it would set fire to their houses.So it was a very difficult matter for George Stephenson to persuade the people that trains could go on smooth rails, could pull carriages and wagons full of people and goods, and that there was no great danger of accidents.However, he was able to do it, and the first train driven by Stephenson himself showed that the newly invented steam engine was a complete success.56. The word "those" in the first sentence refers toA. inventorsB. inventionsC. interestsD. monopolies57.Why do big monopolies buy inventions?A. They want to make a further research.B. They want to improve them.C. They want to make more money.D. They want to play tricks with inventors.58.Which of the following is not the very reason for the opposition to Stephenson's experiment?A. It would make terrible noise.B. It would give off heavy smoke.C. It would waste coal.D. It would set fire to houses.59. The word "dream" in the first paragraph refers to _____A. inventors' interests in inventionsB. inventors' plans for inventionsC. the profits inventors would makeD. the difficulties in their inventions.60. What is the main idea of this paragraph?A. Stephenson invented the stream engine.B. Big monopolies opposed to inventions.C. Inventors' difficulties in their invention.D. Oppositions to Stephenson the inventor.(二)As a young girl, Elizabeth Barrett (Browning英国作家勃朗宁) ruptured a blood vessel on the lungs which did not heal. The physician consigned her to a milder climate for the winter and she went Devonshire for restoration. Among the members of her family who accompanied her to those healing shores was her eldest brother.For a whole year they lived side by side in affectionate companionship, she all the while being greatly benefited by mild sea breezes of Torquay.One summer morning her brother went board a small sailboat with two friends for a trip of several hours around the coast. Just as the vessel came in sight of the window where Miss Barrett sat watching, the boat struck a sunken reef; and all who were in it went down and perished in the sea, before assistant could be rendered. None of the bodies were ever found although the whole village, full of sympathy, assembled in search. This was the tragedy which utterly prostrated for some years afterwards the health and soul of Elizabeth Barrett. Somehow she felt that she herself had in some measure been the cause of all this horror, and she suffered accordingly. Her whole being seemed shattered, and a year longer elapsed before, she was able to be more to London. This fatal event, which so saddened her youth gave also a still deeper devotional feeling to hue ofsorrow so apparent in many of her earlier pieces.61.What sort of climate did Elizabeth's doctor prescribe?A. Temperate.B. Tropical.C. Humid.D. Arid.62.How many people were drowned when the boat sank?A. OneB. TwoC. ThreeD. The article doesn't indicate63. How did the tragedy affect Elizabeth?A. It affected her physically but not emotionally.B. It affected her emotionally but not physically.C. It did not affect her in any way.D. It affected her both physically and emotionally.64. Whom did she blame for the accident?A. Her brother.B. Herself.C. No one.D. The villagers.65. The incident had _____ on her poetry.A. no influenceB. very little influenceC. a superficial influenceD. a strong influence(三)SYDNEY: As they sat sharing sweets beside a swimming pool in 1999 , Shane Gould and Jessicah Schipper were simply getting along well , chatting about sport , life and " anything else that came up . "Y et in Sydney next month , they will meet again by the pool , and for a short time the friends will race against each other in the 50-meter butterfly(蝶泳)in the Australian championships at Homebush Bay .Gould , now a 47-year-old mother of four , has announced she will be making a return to elite competition(顶级赛事)to swim the one event , having set a qualifying(合格的)time of 30.32 seconds in winning gold at last year's United States Masters championships . Her comeback comes 32 years after she won three golds at the Munich Olympics .Schipper , now a 17-year-old from Brisbane with a bright future of going to Athens for her first Olympics , yesterday recalled(回忆)her time with Gould five years ago ." I was at a national youth camp on the Gold Coast and Shane had come along to talk to us and watch us train , " Schipper explained . " It seemed as if we had long been good friends . I don't know why . W e just started talking and it went from there . "" She had a lot to share with all of us at that camp . She told us stories about what it was likeat big meets like the Olympics and what it's like to be on an Australian team . It was really interesting . "Next time , things will be more serious . " I will still be swimming in the 50m butterfly at the nationals , so there is a chance that I could actually be competing against Shane Gould , " said Schipper , who burst onto the scene at last year's national championships with second places in the 100m and 200m butterfly .66. What is the passage mainly about ?A. Stories happening in swimming competitions .B. Two women swimmers winning Olympic golds .C. Lessons learned from international swimming championships .D. Friendship and competition between two swimmers .67. Gould and Schipper are going to .A. talk about sport and lifeB. go back to elite competitionC. set a qualifying time and win goldD. take part in the same sports event68. Gould won her three Olympic golds when she was .A. 15B. 17C. 22D. 3069. The underlined word " it " in the fifth paragraph probably refers to .A. the OlympicsB. the youth campC. the friendshipD. the Australian team70. What Schipper said showed that she .A. was no longer Gould's friendB. had learned a lot from GouldC. was not interested in Gould's storiesD. would not like to compete against Gould(四)Giving BackFair W ayThe W estborough High School golf team had taken the official photos with the state prize. The other teams, disappointed, were on the bus heading home. And then W estborough instructor Greg Rota noticed something wrong with one of the score cards. A 9 had been recorded as a 7. They were not the state prize winner; W obum High had won. "No one would have known," saidW obum's instructor, Bob Doran. For Rota, it wasn't a difficult decision: "The prize wasn't ours to take."Coin Stars"College students are lazy, but they also want to help," says University of Pennsylvania graduate Dana Hork. So she made it easy, placing cups in rooms where students could leave their spare coins, and handing out cups to first-year students to keep in their rooms. Her " Change for Change" effort has collected $40,000 for charities 慈善机构) , which were decided upon by students.Never ForgottenA school in Massachusetts received a $ 9.5 million check from Jacques LeBermuth. But it took officials several days of digging to discover his connection to the school. Records showed the LeBermuth came from Belgium and studied in the school in the 1920s. When his family fell on hard times, he was offered free room and board. LeBermuth became a trader, owned shares of AT&T and lived off the earnings until he died, at age 89.71. What did Greg Rota probably do in the end?A. Took photos of Doran.B. Had a meeting with Doran.C. Returned the prize to the organizer.D. Apologized to W obum High School.72. Greg Rota's decision shows that he was _______.A. honestB. politeC. carefulD. friendly73. The underlined word "Change" in the second paragraph means _______.A. ideaB. decisionC. cupsD. coins74. What did the school officials do after receiving the check from Mr. LeBermuth?A. They tried to find out why he gave them the money.B. They went to Belgium to pay their respects to him.C. They dug out the records that were buried underground.D. They decided to offer their students free room and board.75. Jacques LeBermuth gave the money to the school because _______.A. the school asked for itB. he had no need for that much moneyC. the school had helped him in the pastD. he wanted to be remembered by the students六、写作题(共15分)Directions: For this part, you are required to write a composition on the topic Is Competition a Good or Bad Thing? Y our composition should be based on the following outline. Y our composition should be no less than 120 words.Outline: 1. The seriousness of the present competition2. The advantages of competition3. The disadvantages of competitionCompetition is the method or practice of trying to do better than other people to win or become successful in a specific skill. As a camp, I believe competition is a way of nurturing one's ability and talent in such a way that the person is encouraged to excel more than other skilled person. In some cases and situation, competition may mean a struggle between two or more different competitors.In the workplace, competition has received some bad press in recent years. Greed and layoffs are the two most frequently touted sins of competition. These two sins, however, can always be minimized with new rules (if the appropriate governing bodies are willing to live up to this responsibility of making such new rules) such as increased taxes on the greedy and work replacement/ training/ length-of-workweek rules for employees.参考答案1、D.2、A.3、B.4、C.5、 B.6、 D.7、D.8、A.9、 D.10、C.11、A.12、A.13、 B.14、 A. 15、C.16、 D.17、A.18、C. 19、B.20 B.21、B.22、C.23、C. 24、 D.25、C.26、A.27、C.28、D.29、D. 30、C.31、explosion32、disappointment33、promotion34、economics35、additional36、A.37、A.38、B.39、B. 40、A41、B42、D43、D44、C45、B46、D47、C48、A49、C50、B51、A52、C53、D54、B55、D56、C57、C58、C59、B60、D61、A62、C63、D64、B65、D66、D67、D68、A69、C70、B71、C72、A73、D74、A75、C。

2009年宁夏高考试卷及解答

2009年宁夏高考试卷及解答

绝密 ★ 启封前2009年普通高等学校招生全国统一考试(宁夏卷)理科综合能力测试第Ⅰ卷二、选择题:本题共8小题,每小题6分,在每小题给出的四个选项中,有的只有一个选项正确,有的有多个选项正确,全部选对的得6分,选对但不全的得3分,有选错的得0分。

14. 在力学理论建立的过程中,有许多伟大的科学家做出了贡献。

关于科学家和他们的贡献,下列说法正确的是A. 伽利略发现了行星运动的规律B. 卡文迪许通过实验测出了引力常量C .牛顿最早指出力不是维持物体运动的原因D .笛卡尔对牛顿第一定律的建立做出了贡献答案BD 。

15. 地球和木星绕太阳运行的轨道都可以看作是圆形的。

已知木星的轨道半径约为地球轨道半径的5.2倍,则木星与地球绕太阳运行的线速度之比约为A. 0.19B. 0.44C. 2.3D. 5.2 答案B 。

16. 医生做某些特殊手术时,利用电磁血流计来监测通过动脉的血流速度。

电磁血流计由一对电极a 和b 以及磁极N 和S 构成,磁极间的磁场是均匀的。

使用时,两电极a 、b 均与血管壁接触,两触点的连线、磁场方向和血流速度方向两两垂直,如图所示。

由于血液中的正负离子随血流一起在磁场中运动,电极a 、b 之间会有微小电势差。

在达到平衡时,血管内部的电场可看作是匀强电场,血液中的离子所受的电场力和磁场力的合力为零。

在某次监测中,两触点的距离为3.0mm ,血管壁的厚度可忽略,两触点间的电势差为160µV ,磁感应强度的大小为0.040T 。

则血流速度的近似值和电极a 、b 的正负为A. 1.3m/s ,a 正、b 负B. 2.7m/s , a 正、b 负C .1.3m/s ,a 负、b 正 D. 2.7m/s , a 负、b 正答案A 。

17. 质量为m 的物体静止在光滑水平面上,从t=0时刻开始受到水平力的作用。

力的大小F与时间t 的关系如图所示,力的方向保持不变,则A .03t 时刻的瞬时功率为mt F 0205B .03t 时刻的瞬时功率为mt F 02015 C .在0=t 到03t 这段时间内,水平力的平均功率为mt F 423020 D. 在0=t 到03t 这段时间内,水平力的平均功率为mt F 625020 答案BD 。

2009年普通高考宁夏区试题(理综)

2009年普通高考宁夏区试题(理综)

金太阳新课标资源网

1 a1 1 a1 1 a1 * 当2- d >1 时,若(2- d )∈N ,Sn 的最小值是 f(2- d ),即当 n 1 a1 1 a1 1 a1 1 a1 * =2- d 时, n 取最小值; 2- d )∉N , 2- d ]表示不超过2- d S 若( 设[ 1 a1 1 a1 1 a1 1 a1 的最大整数,当|[2- d ]-(2- d )|<|[2- d ]+1-(2- d )|时,Sn 的最 1 a1 1 a1 1 a1 1 a1 1 a1 小值是 f([ - ]);当|[ - ]-( - )|=|[ - ]+1-( - )|时, 2 d 2 d 2 d 2 d 2 d 1 a1 1 a1 1 a1 1 a1 1 Sn 的最小值是 f([2- d ])=f([2- d ]+1);当|[2- d ]-(2- d )|>|[ 2- a1 1 a1 1 a1 d ]+1-(2- d )|时,Sn 的最小值是 f([2- d ]+1).
金太阳新课标资源网

n-1 当 n 为奇数时,数列中共有 对还多余中间一项,则有 2 n-1 n+1 n+1 Sn= (a1+an)+a ,而 a1+an=2a ,即有: 2 2 2 n-1 1 n Sn= (a1+an)+ (a1+an)= · 1+an). (a 2 2 2
金太阳新课标资源网

• (2)我们知道有如下的实数运算规律:实数加 上负数,越加越小;实数加上正数,越加越 大;实数加上0,不变化. • 设数列{an}是等差数列,首项是a1,公差是d, 则其前n项和是Sn. • 当d>0,a1>0时,等差数列{an}中所有项都是 正数,则Sn存在最小值S1,不存在最大值;

2009宁夏高考数学试题答案(理数)

2009宁夏高考数学试题答案(理数)

小班下学期美术教学进度表2012.2附页:(一)小刺猬背果果本活动是让孩子学习用半圆加线条来画刺猬,同时可以激发孩子用圆加线等画出各种果子。

在本学期中开始让孩子有目的地先勾线,再涂色。

目标:学习用半圆画出不同形状的刺猬;学习用水笔先勾图。

准备:范画、水笔、蜡笔、纸。

过程:1、出示范画,介绍内容,引导观察。

(1)、画上有谁?它在干什么?小刺猬的身体是什么形状的?身体上又有什么?有什么用?(2)、介绍内容:小刺猬来到树林,看到树上有很多果果,可是它不会爬树。

正在这时,风姑娘帮助它把果子吹下来了,小刺猬想把果子背回家,就在地上打滚,把果子插在刺上,手里又捧了几个果子回家了。

(3)、小刺猬背果子时,肚子是直直的还是平平的?弯弯的背在肚子上面还是旁边?果子是怎么背上去的?什么地方还可以拿果子?2、教师示范用水笔勾线的方法画刺猬。

3、幼儿创作,教师指导。

提示幼儿画平的和直立的半圆形,可变换方向;在刺上插果子;多画些刺猬和果子。

4、引导评价(二)我和妈妈拍照妈妈是孩子最爱的人,他们对妈妈有很深的感情,在三八节之时,让孩子来画画自己和妈妈,进行爱妈妈的教育是非常好的,本次活动中可以让孩子学习用两个图形连接与线条的组合来画出人,对小班下学期的孩子是适合的。

目标:初步学习用两个图形连接与线条组合画人。

准备:水笔与蜡笔,幼儿与妈妈的合影数张,以贴好花边的纸像架。

过程:1、欣赏与讨论。

出示小朋友与妈妈的合影,引导观察:这是谁和妈妈的照片?照片上谁是宝宝?谁是妈妈?哪个大?哪个小?妈妈梳着怎样的头发?穿着什么衣服?宝宝呢?他们在哪里拍的照片?2、操作与思考(1)、请幼儿尝试画人,边画边提问:照片上的人头是什么形状?妈妈的身体是什么形状?再请幼儿画手和脚。

谁会画妈妈的头发、眼睛、鼻子、嘴巴?教师引导孩子想一想妈妈的头发是长的还是短的,及眼睛、嘴巴的大小等。

(2)、教师在孩子画的旁边画另一个人,边画边请幼儿说出特征。

3、幼儿作画,教师指导。

2009年高考试题精选2009年高考试题(宁夏卷)1000

2009年高考试题精选2009年高考试题(宁夏卷)1000

2009年高考试题精选2009年高考试题(宁夏卷) 测试题 2019.91,2.进入20世纪该区域:A.气候持续干旱B.大力发展畜牧业C.种植业产值降低D.实施了退耕还林2,南极中山站(,)时间(区时)2009年2月2日9时25分,我国在南极最高点附近建立的昆仑站(,)正式开站。

根据此完成3-5题。

3.昆仑站正式开站时,北京时间为2009年2月2日:A.5时25分B.6时25分C.12时25分D.13时25分3,4.昆仑站与中山站的直线距离约为:A.820千米B.1020千米C.1220千米D.1420千米4,5.与中山站相比,昆仑站所在的地点:A.年降雪量较大B. 气压较高C.年太阳辐射较强D.年均风力较小5,图2示意的甲、乙两国分别为传统、新兴的鲜切花生产国。

读图2,完成6-8题。

6.比较甲、乙两国降水特点及其原因①甲国受西风带和暖流影响,全年降水较丰沛且季节分配均匀 6922'24''S ︒7622'40''E ︒8025'01''S ︒7706'58''E︒②甲国受副热带高压带和西风带的交替影响,降水季节差异大③乙国受赤道低压带影响,全年降水丰沛且季节分配均匀④乙国受地形影响,降水季节差异大A. ①③B. ①④C. ②③D.②④6,7.与甲国相比,乙国发展鲜切花生产的优势自然条件是①热量丰富②光照充足③地形平坦④水源丰富A ①②B ①④C ②③D ③④7,8.与乙国相比,甲国维持其在世界鲜切花市场竞争力的优势条件是A.专业化、规模化生产,鲜切花价格较低B.土地丰富,天然花卉品种较多C.培植历史久,劳动力成本较低D.技术含量高,鲜切花质量较优8, 中国最大的淡水湖--鄱阳湖有多条河流从东、南、西三面注入,北部有水道通往长江,湖泊水面呈现“冬季一条线,夏季一大片”的景象变化。

鄱阳湖是候鸟迁徙途中的重要栖息地。

2009年宁夏高考数学试题(理数)

2009年宁夏高考数学试题(理数)

2009年普通高等学校招生全国统一考试(宁夏卷)数学第I 卷一, 选择题:(本大题共12题,每小题5分,在每小题给出的四个选项中 ,中有一项是符合题目要求的。

(1) 已知集合}{{}1,3,5,7,9,0,3,6,9,12A B ==,则N A C B = (A) }{1,5,7 (B) }{3,5,7 (C) }{1,3,9 (D) }{1,2,3 (2) 复数32322323i i ii+--=-+(A )0 (B )2 (C )-2i (D)2i(3)对变量x, y 有观测数据理力争(1x ,1y )(i=1,2,…,10),得散点图1;对变量u ,v 有观测数据(1u ,1v )(i=1,2,…,10),得散点图2. 由这两个散点图可以判断。

(A )变量x 与y 正相关,u 与v 正相关 (B )变量x 与y 正相关,u 与v 负相关 (C )变量x 与y 负相关,u 与v 正相关 (D )变量x 与y 负相关,u 与v 负相关(4)双曲线24x-212y=1的焦点到渐近线的距离为(A ) (B )2 (C (D )1 (5)有四个关于三角函数的命题:1p :∃x ∈R, 2sin2x +2cos2x =122p : ∃x 、y ∈R, sin(x-y)=sinx-siny3p : ∀x ∈[]0,π 4p : sinx=cosy ⇒x+y=2π其中假命题的是(A )1p ,4p (B )2p ,4p (3)1p ,3p (4)2p ,4p(6)设x,y 满足(A )有最小值2,最大值3 (B )有最小值2,无最大值 (C )有最大值3,无最小值 (D )既无最小值,也无最大值(7)等比数列{}n a 的前n 项和为n s ,且41a ,22a ,3a 成等差数列。

若1a =1,则4s = (A )7 (B )8 (3)15 (4)16(8) 如图,正方体1111ABC D A B C D -的棱线长为1,线段11B D 上有两个动点E ,F ,且2EF =(A )AC BE ⊥ (B )//EF ABCD 平面(C )三棱锥A BEF -的体积为定值 (D )异面直线,AE BF 所成的角为定值(9)已知O ,N ,P 在A B C ∆所在平面内,且,0O A O B O C N A N B N C ==++=,且PA PB PB PC PC PA ∙=∙=∙,则点O ,N ,P 依次是A B C ∆的(A )重心 外心 垂心 (B )重心 外心 内心(C )外心 重心 垂心 (D )外心 重心 内心 (注:三角形的三条高线交于一点,此点为三角型的垂心)(10)如果执行右边的程序框图,输入2,0.5x h =-=,那么输出的各个数的合等于(A )3 (B ) 3.5 (C ) 4 (D )4.5(11)一个棱锥的三视图如图,则该棱锥的全面积(单位:c 2m )为(A )48+12(B ) (C ) (D )(12)用min{a,b,c}表示a,b,c 三个数中的最小值设f (x )=min{, x+2,10-x} (x ≥ 0),则f (x )的最大值为(A )4 (B )5 (C )6 (D )7第II 卷二、填空题;本大题共4小题,每小题5分。

2009宁夏高考数学试题答案(文数)

2009普通高等学校招生全国统一考试(宁夏卷)文科数学本试卷分第Ⅰ卷和第Ⅱ卷两部分,共4页,满分150分,考试时间120分钟。

考试结束后,将本试卷和答题卡一并交回. 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、准考证号、县区和科类填写在答题卡和试卷规定的位置上.,并将准考证号条形码粘贴在答题卡上指定位置。

2. 第Ⅰ卷每小题选出答案后,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,答案不能答在试卷上。

3. 第Ⅱ卷必须用0.5毫米黑色签字笔在答题卡各题的答题区域内作答;不能写在试题卷上; 如需改动,先画掉原来的答案,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。

4. 填空题请直接填写答案,解答题应写出文字说明,证明过程或演算步骤。

参考公式:柱体的体积公式V=Sh ,其中S 是柱体的底面积,h 是锥体的高。

锥体的体积公式V=13Sh ,其中S 是锥体的底面积,h 是锥体的高。

第一部一、填空题:(本大题共14小题,每小题5分,共70分,请将答案填写在答题卷相应的位置上)1.已知集合21{|340},{|0}A x x x B x x=+-==>,则A B = .2.复数512i-的实部为 .3.已知1sin ,3α=且(,)2παπ∈,则tan α= .4.执行右边的流程图,得到的结果是 .5.已知,x y 满足不等式组0,40y y x x y ≥⎧⎪≤⎨⎪+-≤⎩则2x y -的最大值是 .6.为了解某校男生体重情况,将样本数据整理后,画出其频率分布直方图(如图),已知图中从左到右的前3个小组的频率之比为1:2:3,第3小组的频数为12,则样本容量是 . 7.设,l m 为两条不同的直线,,αβ为两个不同的平面,下列命题中正确的是 .(填序号) ①若,//,,l m αβαβ⊥⊥则l m ⊥; ②若//,,,l m m l αβ⊥⊥则//αβ; ③若//,//,//,l m αβαβ则//l m ;④若,,,,m l l m αβαββ⊥=⊂⊥ 则l α⊥.8.设直线2310x y ++=和圆22230x y x +--=相交于A ,B 两点,则弦AB 的垂直平分线方程是 .9.先后掷两次正方体骰子(骰子的六个面分别标有点数1、2、3、4、5、6),骰子朝上的面的点数分别为,m n ,则mn 是奇数的概率是 .10.已知等比数列{}n a 中,公比1q >,且14239,8a a a a +==,则2011201220092010a a a a +=+ .11.在边长为6的等边△ABC 中,点M 满足2BM MA =,则CM CB ⋅ 等于 .12.已知椭圆2222:1(0)x y E a b ab+=>>过点P (3,1),其左、右焦点分别为12,F F ,且126F P F P ⋅=-,则椭圆E 的离心率是 . 13.若关于x 的方程2||1x kx x =-有四个不同的实数根,则实数k 的取值范围是 .14.已知,,x y z R ∈,且2221,3x y z x y z ++=++=,则xyz 的最大值是 . 二、解答题:(本大题共6道题,计90分.解答应写出必要的文字说明、证明过程或演算步骤)15.(本小题满分14分)已知())cos 3f x x x π=+-.(I )求()f x 在[0,]π上的最小值;(II )已知,,a b c 分别为△ABC 内角A 、B 、C的对边,3cos 5b A ==,且()1f B =,求边a 的长.16.(本小题满分14分)如图,在三棱柱111ABC A B C -中,底面△ABC 是等边三角形,D 为AB 中点. (I )求证:1//BC 平面1A C D ;17.(本小题满分15分)某工厂利用辐射对食品进行灭菌消毒,现准备在该厂附近建一职工宿舍,并对宿舍进行防辐射处理,建房防辐射材料的选用与宿舍到工厂距离有关.若建造宿舍的所有费用p (万元)和宿舍与工厂的距离()x km 的关系为:(08)35k p x x =≤≤+,若距离为1km 时,测算宿舍建造费用为100万元.为了交通方便,工厂与宿舍之间还要修一条道路,已知购置修路设备需5万元,铺设路面每公里成本为6万元,设()f x 为建造宿舍与修路费用之和. (I )求()f x 的表达式;(II )宿舍应建在离工厂多远处,可使总费用()f x 最小,并求最小值.18.(本小题满分15分) 如图,正方形ABCD 内接于椭圆22221(0)x y a b ab+=>>,且它的四条边与坐标轴平行,正方形MNPQ 的顶点M ,N 在椭圆上,顶点P ,Q 在正方形的边AB 上,且A ,M 都在第一象限.(I )若正方形ABCD 的边长为4,且与y 轴交于E ,F 两点,正方形MNPQ 的边长为2. ①求证:直线AM 与△ABE 的外接圆相切; ②求椭圆的标准方程.(II )设椭圆的离心率为e ,直线AM 的斜率为k ,求证:22e k -是定值.19.(本小题满分16分) 已知函数()ln f x x x =.(I )求函数()f x 的单调递减区间;(II )若2()6f x x ax ≥-+-在(0,)+∞上恒成立,求实数a 的取值范围; (III )过点2(,0)A e --作函数()y f x =图像的切线,求切线方程. 20.(本小题满分16分)设数列{}n b 满足*2121(),2n n n b b b n N b b ++=--∈=.(I )若33b =,求1b 的值;(II )求证数列12{}n n n b b b n +++是等差数列;(III )设数列{}n T 满足:*11()n n n T T b n N ++=∈,且1112T b ==-,若存在实数,p q ,对任意*n N ∈都有123n p T T T T q ≤++++< 成立,试求q p -的最小值.第二部分(加试部分)21.选修4-2:矩阵与变换(本小题满分10分) 求矩阵1426M -⎡⎤=⎢⎥⎣⎦的特征值和特征向量.22.选修4-4:坐标系与参数方程(本小题满分10分) 已知(,)P x y 是椭圆2214xy +=上的点,求2M x y =+的取值范围.23.(本小题满分10分)口袋中有3个白球,4个红球,每次从口袋中任取一球,如果取到红球,那么继续取球,如果取到白球,就停止取球,记取球的次数为X .(I )若取到红球再放回,求X 不大于2的概率;(II )若取出的红球不放回,求X 的概率分布与数学期望.24.(本小题满分10分)已知(2)p p ≥是给定的某个正整数,数列{}n a 满足:111,(1)()k k a k a p k p a +=+=-,其中1,2,3,,1k p =- .(I )设4p =,求234,,a a a ; (II )求123p a a a a ++++ .数 学 参 考 答 案第一部分一、填空题:1. )1,0( 2.1 3. 42-4.785. 86. 327. ②④8. 0323=--y x9.1410. 4 11. 24 12.32213. 4k <- 14. 527二、解答题: 15.(Ⅰ)sin ()cos cos 22x f x x x ⎫=+-⎪⎪⎝⎭1cos sin 226x x x π⎛⎫=+=+ ⎪⎝⎭ 4分 6766πππ≤+≤x ∴当π=x 时m in 1()2f x =-; 7分(Ⅱ)∵2,62x k k Z πππ+=+∈时()f x 有最大值,B 是三角形内角∴3B π=10分∵3cos 5A = ∴4sin 5A = ∵正弦定理sin sin a b AB=∴8a =. 14分16.(Ⅰ)连1AC ,设1AC 与1A C 相交于点O ,连D O ,则O 为1AC 中点,∵D 为AB 的中点 ∴1//D O BC 4分(Ⅱ)∵等边A B C ∆,D 为A B 的中点 ∴C D A B ⊥∵1CD DA ⊥,1D A AB D = ∴C D ⊥平面11ABB A∵1B B ⊂平面11ABB A ∴1BB CD ⊥ ∵矩形11BCC B ∴1BB BC ⊥ 11分 ∵BC CD C = ∴1B B ⊥平面ABC∵底面A B C ∆是等边三角形 ∴三棱柱111ABC A B C -是正三棱柱. 14分 17.(Ⅰ)根据题意得100800315k k =∴=⨯+ 3分800()56,0835f x x x x ∴=++≤≤+ 7分 (Ⅱ)800()2(35)580535f x x x =++-≥-+ 11分 当且仅当8002(35)35x x =++即5x =时m in ()75f x =. 14分答:宿舍应建在离厂5km 处可使总费用()f x 最小为75万元. 15分 18.(Ⅰ)①依题意:(2,2)A ,(4,1)M ,(0,2)E -(2,1),(2,4)AM AE ∴=-=--0AM AE AM AE ∴∙=∴⊥3分AE 为Rt ABE ∆外接圆直径∴直线A M 与A B E ∆的外接圆相切; 5分②由⎧⎪⎨⎪⎩22224411611a b ab+=+=解得椭圆标准方程为221205xy+=. 10分(Ⅱ)设正方形A B C D 的边长为2s ,正方形M NPQ 的边长为2t ,则(,)A s s ,(2,)M s t t +,代入椭圆方程22221x y ab+=得⎧⎪⎨⎪⎩222222221(2)1s s abs t t ab+=++=⇒⎧⎪⎨⎪⎩22221(3)14(3)s t a s s t t bs s t -=+=+222514b t s e at-∴=-=14分(2)2t st s k s t st--==+- 222e k ∴-=为定值. 15分19.(Ⅰ)'()ln 1f x x =+ '()0f x ∴<得ln 1x <- 2分 10x e ∴<<∴函数()f x 的单调递减区间是1(0,)e; 4分(Ⅱ) 2()6f x x ax ≥-+-即6ln a x x x≤++设6()ln g x x x x=++则2226(3)(2)'()x x x x g x xx+-+-== 7分当(0,2)x ∈时'()0g x <,函数()g x 单调递减; 当(2,)x ∈+∞时'()0g x >,函数()g x 单调递增;∴()g x 最小值(2)5ln 2g =+∴实数a 的取值范围是(,5ln 2]-∞+; 10分 (Ⅲ)设切点00(,)T x y 则0'()AT k f x =∴00002ln ln 11x x x x e=++即200ln 10e x x ++=设2()ln 1h x e x x =++,当0x >时'()0h x >∴()h x 是单调递增函数 13分∴()0h x =最多只有一个根,又2222111()ln10h e eee=⨯++=∴021x e=由0'()1f x =-得切线方程是210x y e++=. 16分20.(Ⅰ)∵21n n n b b b ++=--∴32113b b b b =--=-=3∴1b =-1; 3分 (Ⅱ)∵21n n n b b b ++=--①∴321n n n b b b +++=--②,②-①得3n n b b += 5分 ∴(1231n n n b b b n +++++)-(12n n n b b b n +++)=123()1n n n n b b b b +++-+=1为常数 ∴数列{12n n n b b b n +++}是等差数列. 7分 (Ⅲ)∵11n n n T T b ++=⋅=11n n n T b b -+=211n n n n T b b b --+=……=1231n b b b b + 当2n ≥时123n n T b b b b = (*),当1n =时11T b =适合(*)式∴123n n T b b b b = (*n N ∈). 9分 ∵112b =-,2121b b ==-,31332b b =-=,3n n b b +=,∴1112T b ==-,21212T T b ==,32334T T b ==,43431134T T b T b T ===,54523452123234T T b T b b b T b b b T ====,65634563123334T T b T b b b T b b b T ====,……313233323133131331323313233n n n n n n n n n n n n n n n T T T T b b b T b b b T b b b +++--+-+++++++=++ =32123311233123n n n T b b b T b b b T b b b --++=323133()4n n n T T T --++,*首项12334T T T ++=且公比34q =11分记123n n S T T T T =++++①当*3()n k k N =∈时1234563231()()()n k kkS T T T T T T T T T --=++++++++ =33[1()]44314k--=33[1()]4k- ∴334n S ≤<; 13分②当*31()n k k N =-∈时12345632313()()()n k k k S T T T T T T T T T --=++++++++ -3k T=33[1()]4k --123()kb b b =334()4k -⋅∴03n S ≤<; 14分 ③当*32()n k k N =-∈时12345632313()()()n k k k S T T T T T T T T T --=++++++++ -31k T --3k T=33[1()]4k --112312()k b b b b b --123()kb b b =33[1()]4k --113()24k --3()4k =1433()34k -⋅ ∴132n S -≤< 15分 综上得132n S -≤<则12p ≤-且3q ≥∴q p -的最小值为72. 16分第二部分(加试部分)21.2()(1)(6)8514(7)(2)f λλλλλλλ=+--=--=-+由()0f λ=可得:17λ=,22λ=-. 4分 由⎧⎨⎩(71)402(76)0x y x y +-=-+-=可得属于17λ=的一个特征向量为12⎡⎤⎢⎥⎣⎦7分由⎧⎨⎩(21)402(26)0x y x y -+-=-+--=可得属于12λ=-的一个特征向量为41⎡⎤⎢⎥-⎣⎦. 10分 22.∵2212xy +=的参数方程⎧⎨⎩2cos sin x x θθ==(θ是参数)∴设P (2cos ,sin )θθ 4分∴22cos 2sin M x y θθ=+=+)4πθ=+ 7分∴2M x y =+的取值范围是[-. 10分 23.(Ⅰ)∵3(1)7P X ==,23412(2)749P X ⨯===∴33(1)(2)49P P X P X ==+==; 4分(Ⅱ)∵X 可能取值为1,2,3,4,5,∴13173(1)7A P X A===,1143272(2)7A A P X A===,2143376(3)35A A P X A ===,3143473(4)35A A P X A ===,4143571(4)35A A P X A ===∴32631()12345277353535E X =⨯+⨯+⨯+⨯+⨯=答:X 的数学期望是2. 10分24.(Ⅰ)由1(1)()k k k a p k p a ++=-得11k ka k p p a k +-=⨯+,1231k p =- ,,,,即2141462a a -=-⨯=-,2166a a =-=-;32428433a a -=-⨯=-,316a =4343414a a -=-⨯=-,416a =-; 3分(Ⅱ)由1(1)()k k k a p k p a ++=-得:11k ka k p p a k +-=⨯+,1231k p =- ,,,,即2112a p p a -=-⨯,3223a p p a -=-⨯,…,1(1)k k a p k p a k---=-⨯,以上各式相乘得11(1)(2)(3)(1)()!k k a p p p p k p a k -----+=-⨯5分∴1(1)(2)(3)(1)()!k k p p p p k a p k -----+=-⨯11(1)!()!()!()!!()!k k p p p p k p k pk p k ----=-⨯=⨯--221()()k kk kp p p C C p p-=--⨯=--,123k p = ,,,, 7分∴123p a a a a ++++ 11223321[()()()()]p pp p p p C p C p C p C p p=--+-+-++-21[(1)1]pp p=--- 10分。

2009年高考数学(宁夏)理(word版含答案)


锥体体积公式 V=
1 ( x1 x )2 ( x2 x )2 … ( xn x )2 n
1 Sh 3
其中 x 为样本平均数 柱体体积公式 V=Sh 其中 S 为底面面积,h 为高
其中 S 为底面面积,h 为高 球的表面积、体积公式
S 4R2 , V
4 3 R 3
2
B
NA NB NC 0 ,且 9.已知点 O,N,P 在 △ ABC 所在平面内,且 OA OB OC ,
,则点 O,N,P 依次是 △ ABC 的( PA ·PB PB· PC PC PA · A.重心、外心、垂心 B.重心、外心、内心 C.外心、重心、垂心 D.外心、重心、内心 (注:三角形的三条高线交于一点,此点为三角 形的垂心) 10 . 如 果 执 行 右 边 的 程 序 框 图 , 输 入 x 2,h 0 . ,那么输出的各个数的和等于 5 ( ) A.3 B. 3.5 C. 4 D.4.5 11.一个棱锥的三视图如图,则该棱锥的全面积 (单位:cm2)为( ) A.48+12 2 C.36+12 2 3 4 6 6 B.48+24 2 D.36+24 2 3 4 )
2009 年普通高等学校招生全国统一考试(宁夏卷) 理 科 数 学
本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分.其中第Ⅱ卷第(22)~(24) 题为选考题, 其它题为必考题. 考生作答时, 将答案答在答题卡上, 在本试卷上答题无效. 考 试结束后,将本试卷和答题卡一并交回. 注意事项: 1.答题前,考生务必先将自己的姓名、准考证号填写在答题卡上,认真核对条形码上的姓 名、准考证号,并将条形码粘贴在答题卡的指定位置上. 2.选择题答案使用 2B 铅笔填涂,如需改动,用橡皮擦干净后,再选涂其它答案标号;非 选择题答案使用 0.5 毫米的黑色中性(签字)笔或碳素笔书写,字体工整、笔迹清楚. 3.请按照题号在各题的答题区域(黑色线框)内作答,超出答题区域书写的答案无效. 4.保持卡面清洁,不折叠,不破损. 5.做选考题时,考生按照题目要求作答,并用 2B 铅笔在答题卡上把所选题目对应的题号 涂黑. 参考公式: 样本数据 x1,x2, „,xn 的标准差 s=

2009年高考宁夏理科综合试题及参考答案(估分)-中大网校

2009年高考宁夏理科综合试题及参考答案(估分)总分:300分及格:180分考试时间:150分本题共13小题,每小题6分,在每小题给出的4个选项中,只有一项是符合题目要求的。

(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)本题共8小题,每小题6分,在每小题给出的四个选项中,有的只有一个选项正确,有的有多个选项正确,全部选对的得6分,选对但不全的得3分,有选错的得0分。

(1)(2)(3)(4)(5)(6)(7)(8)包括必考题和选考题两部分。

第22题~第32题为必考题,每个小题考生都必须做答。

第33题~第41题为选考题,考生根据要求做答。

(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)答案和解析本题共13小题,每小题6分,在每小题给出的4个选项中,只有一项是符合题目要求的。

(1) :B(2) :B(3) :D(4) :B(5) :C(6) :B(7) :A(8) :B(9) :C(10) :D(11) :D(12) :D(13) :B本题共8小题,每小题6分,在每小题给出的四个选项中,有的只有一个选项正确,有的有多个选项正确,全部选对的得6分,选对但不全的得3分,有选错的得0分。

(1) :B, D(2) :B(3) :A(4) :B, D(5) :D(6) :C(7) :B, C(8) :A, C包括必考题和选考题两部分。

第22题~第32题为必考题,每个小题考生都必须做答。

第33题~第41题为选考题,考生根据要求做答。

(1) :(2) :(3) :(4) :(5) :(6) :(7) :(8) :(9) :(10) :(11) :(12) :(13) :(14) :(15) :(16) :(17) :(18) :(19) :(20) :。

年高考理科综合宁夏卷含答案


B. 17%
C. 25%
D.33%
二、选择题:本题共8小题,每小题6分,在每小题给出的四个选项中,有的只有一 个选项正确,有的有多个选项正确,全部选对的得6分,选对但不全的得3分,有 选错的得0分。 14.
在力学理论建立的过程中,有许多伟大的科学家做出了贡献。关于科学家和 他们的贡献,下列说法正确的是 A. 伽利略发现了行星运动的规律 B. 卡文迪许通过实验测出了引力常量 C.牛顿最早指出力不是维持物体运动的原因 D.笛卡尔对牛顿第一定律的建立做出了贡献
3、请按照题号在各题的答题区域(黑色线框)内作答,超出答题区域书写的答案无效。
4.保持卡面清洁,不折叠,不破损。
5.做选考题时,考生按照题目要求作答,并用2B铅笔在答题卡上把所选题目 对应的题号涂黑。
可能用到的相对原子质量:H1 C12 N14 O16 N23 CL35.5 CU63.6
第I卷
一、选择题:本题共13小题,每小题6分,在每小题给出的4个选项中,只有一项是 符合题目要求的。 1. 下列关于动物细胞编程性死亡的叙述,正确的是 A.细胞癌变属于细胞编程性死亡 B. 细胞编程性死亡属于正常生理过程 C.细胞编程性死亡属于细胞分化过程 D.细胞编程性死亡与基因表达无关 2. 右图表示酶活性与温度的关系。下列叙述正确的是 A.当反应温度由t2调到最适温度时,酶活性下降 B.当反应温度由t2调到最适温度时,酶活性上升 C.酶活性在t2时比t1高,故t2时更适合酶的保存 D.酶活性在t1时比t2低,表明t1时酶的空间结构破坏更严重 温度/℃
12.能正确表示下列反应的例子方程式是 A. 向次氯酸钙溶液通入过量 CO2 :
Ca 2 2ClO H 2O CO2 CaCO3 2HClO
B. 向次氯酸钙溶液通入 SO2 : Ca 2 2ClO H 2O SO 2 CaSO3 2HClO
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2009年普通高等学校招生全国统一考试(宁夏卷)
数学(理工农医类)
第I 卷
一, 选择题:(本大题共12题,每小题5分,在每小题给出的四个选项中 ,中有一项是符合题目要求的。

(1) 已知集合}{
{}1,3,5,7,9,0,3,6,9,12A B ==,则N A C B = (A) }{1,5,7 (B) }{
3,5,7 (C) }{1,3,9 (D) }{
1,2,3 (2) 复数
32322323i i
i i
+--=-+ (A )0 (B )2 (C )-2i (D)2i
(3)对变量x, y 有观测数据理力争(1x ,1y )(i=1,2,…,10),得散点图1;对变量u ,v 有观测数据(1u ,1v )
(i=1,2,…,10),得散点图2. 由这两个散点图可以判断。

(A )变量x 与y 正相关,u 与v 正相关 (B )变量x 与y 正相关,u 与v 负相关 (C )变量x 与y 负相关,u 与v 正相关 (D )变量x 与y 负相关,u 与v 负相关
(4)双曲线24x -2
12
y =1的焦点到渐近线的距离为
(A ) (B )2 (C (D )1 (5)有四个关于三角函数的命题:
1p :∃x ∈R, 2sin 2x +2cos 2x =12
2p : ∃x 、y ∈R, sin(x-y)=sinx-siny
3p : ∀x ∈[]0,π=sinx 4p : sinx=cosy ⇒x+y=2π
其中假命题的是
(A )1p ,4p (B )2p ,4p (3)1p ,3p (4)2p ,4p
(6)设x,y 满足
(A )有最小值2,最大值3 (B )有最小值2,无最大值 (C )有最大值3,无最小值 (D )既无最小值,也无最大值
(7)等比数列{}n a 的前n 项和为n s ,且41a ,22a ,3a 成等差数列。

若1a =1,则4s = (A )7 (B )8 (3)15 (4)16
(8) 如图,正方体1111ABCD A BC D -的棱线长为1,线段11B D 上有两个动点E ,F ,且EF =,则下列结论中错误的是
(A )AC BE ⊥ (B )//EF ABCD 平面
(C )三棱锥A BEF -的体积为定值 (D )异面直线,AE BF 所成的角为定值
(9)已知O ,N ,P 在ABC ∆所在平面内,且,0OA OB OC NA NB NC ==++=,且
P A P B P B P C P C P A ∙=∙=∙,则点O ,N ,P 依次是ABC ∆的
(A )重心 外心 垂心 (B )重心 外心 内心 (C )外心 重心 垂心 (D )外心 重心 内心
(注:三角形的三条高线交于一点,此点为三角型的垂心)
(10)如果执行右边的程序框图,输入2,0.5x h =-=,那么输出的各个数的合等于
(A )3 (B ) 3.5 (C ) 4 (D )4.5
(11)一个棱锥的三视图如图,则该棱锥的全面积(单位:c 2
m )为
(A ) (B ) (C ) (D )
(12)用min{a,b,c}表示a,b,c 三个数中的最小值
设f (x )=min{, x+2,10-x} (x ≥ 0),则f (x )的最大值为
(A )4 (B )5 (C )6 (D )7
第II 卷
二、填空题;本大题共4小题,每小题5分。

(13)设已知抛物线C 的顶点在坐标原点,焦点为F(1,0),直线l 与抛物线C 相交于A ,B 两点。

若AB 的中点为(2,2),则直线ι的方程为_____________. (14)已知函数y=sin (ωx+ϕ)(ω>0, -π≤ϕ<π)的图像如图所示,则 ϕ=________________
(15)7名志愿者中安排6人在周六、周日两天参加社区公益活动。

若每天安排3人,则不同的安排方案共有________________种(用数字作答)。

(16)等差数列{n a }前n 项和为n S 。

已知1m a -+1m a +-2m a =0,21m S -=38,则m=_______
三、解答题:解答应写出说明文字,证明过程或演算步骤。

(17)(本小题满分12分)
为了测量两山顶M ,N 间的距离,飞机沿水平方向在A ,B 两点进行测量,A ,B ,M ,N 在同一个铅垂平面内(如示意图),飞机能够测量的数据有俯角和A ,B 间的距离,请设计一个方案,包括:①指出需要测量的数据(用字母表示,并在图中标出);②用文字和公式写出计算M ,N 间的距离的步骤。

(18)(本小题满分12分)
某工厂有工人1000名, 其中250名工人参加过短期培训(称为A 类工人),另外750名工人参加过长期培训(称为B 类工人),现用分层抽样方法(按A 类、B 类分二层)从该工厂的工人中共抽查100名工人,调查他们的生产能力(此处生产能力指一天加工的零件数)。

(I )求甲、乙两工人都被抽到的概率,其中甲为A 类工人,乙为B 类工人; (II )从A 类工人中的抽查结果和从B 类工人中的抽插结果分别如下表1和表2.
(i)先确定x,y,再在答题纸上完成下列频率分布直方图。

就生产能力而言,A类工人中个体间的差异程度与B类工人中个体间的差异程度哪个更小?(不用计算,可通过观察直方图直接回答结论)
(ii)分别估计A类工人和B类工人生产能力的平均数,并估计该工厂工人的生产能力的平均数,同一组中的数据用该组区间的中点值作代表)
(19)(本小题满分12分)
如图,四棱锥S-ABCD P为侧棱SD上的点。

(Ⅰ)求证:AC⊥SD;
(Ⅱ)若SD⊥平面P AC,求二面角P-AC-D的大小
(Ⅲ)在(Ⅱ)的条件下,侧棱SC上是否存在一点E,
使得BE∥平面PAC。

若存在,求SE:EC的值;
若不存在,试说明理由。

(20)(本小题满分12分)
已知椭圆C 的中心为直角坐标系xOy 的原点,焦点在s 轴上,它的一个顶点到两个焦点的距离分别是7和1.
(Ⅰ)求椭圆C 的方程;
(Ⅱ)若P 为椭圆C 上的动点,M 为过P 且垂直于x 轴的直线上的点,OP OM
=λ,求点M 的轨迹方程,
并说明轨迹是什么曲线。

(21)(本小题满分12分)
已知函数32()(3)x f x x x ax b e -=+++
(I ) 如3a b ==-,求()f x 的单调区间;
(II )
若()f x 在(,),(2,)αβ-∞单调增加,在(,2),(,)αβ+∞单调减少,证明
βα-<6.
请考生在第(22)、(23)、(24)三题中任选一题作答,如果多做,则按所做的第一题记分。

作答时用2B 铅笔在答题卡上把所选题目对应的题号涂黑。

(22)本小题满分10分)选修4-1:几何证明选讲
如图,已知ABC ∆的两条角平分线AD 和CE 相交于H ,0
60B ∠=,F 在AC 上, 且AE AF =。

(I ) 证明:B,D,H,E 四点共圆: (II ) 证明:CE 平分DEF ∠。

(23)(本小题满分10分)选修4-4:坐标系于参数方程 已知曲线14cos :3sin x t
c y t =-+⎧⎨
=+⎩
(t 为参数),
(24)(本小题满分10分)选修4-5:不等式选讲
如图,O 为数轴的原点,A,B,M 为数轴上三点,C 为线段OM 上的动点,设x 表示C 与原点的距离,y 表示C 到A 距离4倍与C 道B 距离的6倍的和. (1)将y 表示成x 的函数;
(2)要使y 的值不超过70,x 应该在什么范围内取值?。

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