汕头市金山中学高三期末模拟考试(2012.12)
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广东省汕头市金山中学2013届高三英语上学期期末模拟考试试题本试卷共三部分,满分135分,考试用时120分钟。
I . 语言知识及应用(共两节,满分45分)第一节: 完形填空(共15小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从1―15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
When I was a law professor, a student reported that I made an error in grading his exam by giving him too many points. He was right , and after thanking him for his honesty, I changed the grade in my 1 . His beaming face turned to shock. “You’re 2 my grade?” he said angrily. “I would never have come in if ……”He didn’t finish the sentence , but it was obvious that his display of honesty was 3 . He thought he’d have it all—praise and the higher grade.Several colleagues thought I should have let the higher grade 4 because all I’d accomplished was to discourage him from being honest in the future. And every time I tell this story some people agree with this 5 .But I can’t see how I could give good reason for worsening my 6 in grading by undermining (损害) the honesty of all my grades by failing to correct an error. The grade itself would bea dishonest 7 of his knowledge and it would have been 8 to other students. How could I9 give a student a gift of an unearned grade?I know 10 reporting an error in one’s favor is unusual, but, like 11 too much change, it’s clearly the right thing to do. People of character, those with real honesty, hate to give up 12_ as much as anyone else. The difference is that for them a good conscience and reputation is _13 enough to give reason for the cost of doing the right thing.Perhaps lowering the student’s grade did 14 him from being honest in the future, but bribing (贿赂)him to be honest so that he does the right thing when it’s cost-free would have _15him even more. The duty to be honest is about right and wrong, not risks and rewards.1. A. files B. books C. records D. notes2. A. lowering B. correcting C. changing D. making3. A. good B. false C. special D. impressive4. A. remove B. change C. stand D. add5. A. remark B. complaint C. praise D. achievement6. A. crime B. mistake C. doubt D. guilty7. A. reaction B. sense C. sign D. reflection8. A. unfair B. cruel C. tough D. funny9. A. reluctantly B. responsibly C. impossibly D. impatiently10. A. actively B. secretly C. voluntarily D. curiously11. A. receiving B. paying C. earning D. returning12. A. benefits B. honors C. awards D. gifts13. A. pleasure B. reward C. content D. honor14. A. protect B. influence C. discourage D. separate15. A. improved B. encouraged C. blamed D. ruined第二节:语法填空(共10小题,每小题1.5分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为16-25的相应位置上。
广东省汕头市金山中学高三上学期期末考试数学试卷一、选择题 (本题共12小题,每小题5分,共60分.每小题的四个选项中,只有一项符合题目要求.)1.已知集合P =(−∞,1]∪(4,+∞),Q ={1,2,3,4},则(∁R P )∩Q =( ) A .{1,4}B .{2,3}C .{2,3,4}D .{x |1≤x <4}2. 已知复数21z i=-,则下列结论正确的是( ) A .z 的虚部为iB .2z =C .z 的共轭复数1z i =-+D . z 2为纯虚数3. 设a,b,c,d 是非零实数,则“ad=bc ”是“a,b,c,d 成等比数列”的( ) A .充分而不必要条件 B .必要而不充分条件 C .充分必要条件 D .既不充分也不必要条件4.在等差数列{a n }中,前n 项和S n 满足S 7−S 2=45,则a 5=( ) A . 7 B . 9 C . 14 D . 185. 已知0.223log 7,log 8,0.3a b c ===,则a ,b ,c 的大小关系为( ) A .c b a << B .a b c << C .b c a << D .c a b <<6. 定义在R 上的奇函数f(x)满足f(1+x)=f(1−x),且当x ∈[0,1]时,f(x)=x(3−2x),则f(312)= ( ) A .−1B .−12C .12D .17.在ΔABC 中,AM 为BC 边上的中线,点N 满足AN ⃑⃑⃑⃑⃑⃑ =12NM ⃑⃑⃑⃑⃑⃑⃑ ,则BN ⃑⃑⃑⃑⃑⃑ =( ) A .5166AC AB - B .5166AC AB + C .1566AC AB - D . 1566AC AB + 8. 已知tan (α+π4)=−2,则sin 2α=( )A. 310B. 35C. −65D. −1259. 函数f (x )=A sin (ωx +φ),(A >0,ω>0,|φ|<π2)的部分图象如图所示,下列说法正确的是( )A.f (x )的图象关于直线x =2π3对称B.f (x )的图象关于点(−5π12,0) 对称C.将函数y =√3sin 2x −cos 2x 的图象向左平移π2个单位得到函数f (x )的图象 D.若方程f (x )=m 在[−π2,0]上有两个不相等的实数根,则m 的取值范围是(−2,−√3] 10. 如图,网格纸上小正方形的边长为1,粗线画出的是某个三棱锥的三视图, 则该三棱锥的外接球表面积是( )A .4πB .9πC .41π4D .12π11. 设数列{}n a 满足12a =,且a n+1=a n +2(n +1),若[]x 表示不超过x 的最大整数, (例如[][]1.61, 1.62=-=-)则[22a 1]+[32a 2]+⋯+[20192a2018]=( )A .2020B .2019C .2018D .201712. 已知函数f (x )={2x +1,x <0|12x 2−2x +1|,x ≥0方程[f (x )]2−af (x )+b =0有5个不同的实根,则ba 取值范围是( )A .(0,23) B .[0,23) C .(0,1) D .[0,1)二、填空题 (本题共4小题,每小题5分,共20分)13. 已知曲线 y =ax 3+x 2−a 在(1,1)处的切线过点(2,6),那么实数a = _______. 14. 设向量a =(√3,1),b ⃑ =(x,−3),且a ⊥b ⃑ ,则向量a −b⃑ 在向量b ⃑ 方向上的投影是 .15.如图,在直三棱柱ABC −A 1B 1C 1中,∠ABC =900,AB =2,BC =CC 1=1, 则异面直线AB 1与BC 1所成角的余弦值为 .16. 分形几何学是一门以不规则几何形态为研究对象的几何学.分形的外表结构极为复杂,但其内部却是有规律可寻的.一个数学意义上分形的生成是基于一个不断迭代的方程式,即一种基于递归的反馈系统.下面我们用分形的方法来得到一系列图形,如图1,线段AB 的长度为a ,在线段AB 上取两个点C ,D ,使得AC =DB =14AB ,以CD 为一边在线段AB 的上方做一个正六边形,然后去掉线段CD ,得到图2中的图形;对图2中的最上方的线段EF 作相同的操作,得到图3中的图形;依此类推,我们就得到了以下一系列图形:记第n 个图形(图1为第1个图形)中的所有线段长的和为S n ,则(1)S 3=_________;(2)如果对∀n ∈N ∗,S n <2019恒成立,那么线段AB 的长度a 的取值范围是_______.三、解答题(解答应写出文字说明,证明过程或演算步骤) 17.(本小题满分12分)已知数列{a n }的前n 项和为S n ,点(n ,S n )(n ∈N *)在函数f (x )=12x 2+12x 的图像上.(1)求数列{a n }的通项公式;(2)设数列21n n a a +⎧⎫⎨⎬⎩⎭的前n 项和为T n ,证明:T n < 34 .18.(本小题满分12分)如图,三棱柱ABC−A1B1C1的所有棱长都是2,AA1⊥面ABC,D,E分别是AC,CC1的中点.(1)求证:AE⊥平面A1BD;(2)求三棱锥B1−ABE的体积.19.(本小题满分12分)汕头市有一块如图所示的海岸,OA,OB为岸边,岸边形成120°角,现拟在此海岸用围网建一个养殖场,现有以下两个方案:方案l:在岸边OA,OB上分别取点E,F,用长度为1km的围网依托岸边围成三角形EOF(EF为围网).方案2:在∠AOB的平分线上取一点P,再从岸边OA,OB上分别取点M,N,使得∠MPO=∠NPO=θ,用长度为1km的围网依托岸边围成四边形PMON(PM,PN为围网).记三角形EOF的面积为S1,四边形PMON的面积为S2. 请分别计算S1,S2的最大值,并比较哪个方案好.20.(本小题满分12分)设椭圆x 2a2+y2b2=1(a>b>0)的左焦点为F1,离心率为12,F1为圆M:x2+y2+2x−15=0的圆心.(1)求椭圆的方程;(2)已知过椭圆右焦点F2的直线l交椭圆于A,B两点,过F2且与l垂直的直线l1与圆M交于C,D两点,求四边形ACBD面积的取值范围.21. (本小题满分12分)已知函数f(x)=x cos x−2sin x+1,g(x)=x2e ax (a∈R).(1)证明:f(x)的导函数f′(x)在区间(0,π)上存在唯一零点;(2)若对任意x1∈[0,2],均存在x2∈[0,π],使得g(x1)≤f(x2),求实数a的取值范围.注:复合函数y=e ax的导函数y′=a∙e ax.请考生从第22、23两题中任选一题作答。
正常男正常女患病男金山中学2012届高三期末试题理综试卷一、单项选择题:本题共16小题,每小题4分,满分64分.每小题给出的四个选项中,只有一个选项最符合题目要求,选对的得4分,多选、选错或不答的得0分.1.下列关于细胞共性的描述正确的是A.所有细胞内都含有糖原B.细胞都能进行分裂和分化C.细胞都具有细胞质和细胞膜D.用龙胆紫给细胞染色都能观察到深色的染色体2.下列是几种常见的单细胞生物结构示意图。
有关该组生物的叙述错误..的是A. 图中各细胞中共有的细胞器只有核糖体B.具有核膜、核仁的细胞是①②③C.生物②③④一定是异养生物D.图中各生物的遗传物质都是DNA3.某同学为了研究酶的专一性问题,做了淀粉酶对淀粉和蔗糖的水解作用实验,则: A.淀粉酶能否催化淀粉和蔗糖的水解,可通过有无还原糖特定的颜色反应来证明B.实验中有两次控制温度,目的是一样的C.该实验也可用碘液替代斐林试剂的作用D.蔗糖的纯度与新鲜程度如何并不影响实验4.右图为一个家族中某种单基因遗传病的传递情况,若③号个体为纯合子的概率是1/2,则该病最可能的遗传方式为A.细胞质遗传B.Y染色体遗传C.X染色体隐性遗传D.常染色体隐性遗传5.有关生物科学史的说法正确的是A.细胞学说是罗伯特·虎克和施旺共同提出的B.赫尔希和蔡斯的实验证明了DNA是遗传物质C.沃森和克里克提出了细胞膜的流动镶嵌模型D.萨顿用类比推理法证明了基因位于染色体上6.一百多年前,人们就开始了对遗传物质的探索历程。
对此有关叙述错误的...是A.最初认为遗传物质是蛋白质,是推测氨基酸的多种排列顺序可能蕴含遗传信息B.在艾弗里肺炎双球菌转化实验中,细菌转化的实质是发生了基因重组C.噬菌体侵染细菌实验之所以更有说服力,是因为其蛋白质与DNA完全分开D.噬菌体侵染细菌实验中,只有在离心后的沉淀物中才能测到放射性同位素32P7.下列有关化学用语表示正确的是A.NH4Cl的电子式:H N H∶∶¨¨+HHCl-B.中子数为7的碳原子:7CC.Cl-的离子结构示意图:D.次氯酸的结构式:H-Cl-O24.下列关于细胞器的描述正确的是A.溶酶体内含有多种水解酶,能分解衰老、损伤的细胞器B.动植物细胞都有两个互相垂直排列的中心粒C.所有酶、抗体、激素都在核糖体上合成D.高尔基体与细胞壁的形成有关25.基因型为YyRr(♂)× YyRR(♀)的两黄色圆粒豌豆杂交,下列叙述正确的是A.杂交需要人工授粉B.子代有9种基因型C.子代表现出3∶1的性状分离比D.基因遗传不符合自由组合定律三、非选择题:本题共11小题,满分182分.26.(16分)阅读下图,回答问题:(1)乙图过程发生的场所是___________,GGU称为_______________。
2012汕头金山中学高三校摸数学试卷 (云压题卷) (理)2012-5-25 班级 姓名 座号 评分 一、选择题(以下题目从4项答案中选出一项,每小题5分,共40分)1、函数x y 2cos =在下列哪个区间上是减函数A 、]4,4[ππ-B 、]43,4[ππC 、]2,0[πD 、]23,2[ππ2、函数,93)(23-++=x ax x x f 已知3)(-=x x f 在时取得极值,则a = A .2 B .3 C .4 D .53、函数2()ln f x x x=-的零点所在的大致区间是A 、(1,2)B 、(2,e )C 、(e ,3)D 、(e ,+∞)4、已知向量a =(x -5,3),b =(2,x ),且a ⊥b,则由x 的值构成的集合是A 、{}2B 、{}6C 、{}3,2D 、 {}6,1-5、直线1)1(02322=+-=-+yx y x 被圆所截得的弦长为A 、1B 、2C 、3D 、26、若0≥x ,0≥y ,且1=+y x ,那么24y x +的最小值为A 、4B 、3C 、2D 、1 7、函数a x x x x f --+-=34)(2有三个不同的零点,则实数a 的值是A .1-B .43-C .431--或 D .431或8、一船向正北匀速前进,看见正西方两座相距10浬的灯塔恰好与该船在同一直线上,继续航行半小时后,看见其中一座灯塔在南偏西60方向上,另一灯塔在南偏西75方向上,试测算该船的速度应该是A 、10浬/小时B 、310浬/小时C 、5浬/小时D 、35浬/小时二、填空题(每小题4分,共30分)9、已知函数)(x f y =是偶函数,且当0>x 时,xx x f 4)(+=,记)(x f 在区间[]1,3--上的最大、最小值分别为M 、m ,则实数m M -的值为 。
10、双曲线)0(122≠=-mn nymx离心率为2,有一个焦点与抛物线x y42=的焦点重合,则mn 的值为11、已知变量x 、y 满足20,350,x y x y -≤⎧⎨-+≥⎩则2z x y =+-的最大值为__________。
百度文库.... -. 让每个人平等地提升自我.............广东省...汕头市金山中学高三校模...........英语..试题..&.参考答案....本试卷共三部分,满分..........135...分(..120×1.125.........)。
考试时间......120...分钟。
...注意事项:.....1..答卷前,考生务必分别将答题卷上的姓名、考试号用黑色字迹的签字笔填写,...................................用.2B ..铅笔将考试号对应的信息点涂黑。
...............2..选择题每小题选出答案后,用..............2B ..铅笔把答题卡上对应题目选项的答案信息..................点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷.................................上。
..第一部分....: .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,..........并在答题卡上将该项涂黑。
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This was one more weapon for her ......................................................................to defeat my strange problem inability to read.........................................In the library, I found my way into the "Children's ..........................................Room." I sat down on the floor ........................and pulled a few books off the shelf at random. The cover of a book caught my eye. It ...................................................................presented a picture of a beagle. I had recently had a beagle, the first and only animal .......................................................................companion I ever had as a child. He was my secret s ........................................harer, but one morning, he was .........................gone, given away to someone who had the space and the money to care for him. 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Though pages were turned slowly, I got the main idea of the story about .........................................................................a dog who, like mine, had been separated from his family and who finally found his ...................................................................way back home. That dog was my dog, and I was the little boy in the book. At the ..............................................................end of .....the story, my mind continued the final scene of reunion, on and on, until my own lost .....................................................................dog and I were, in my mind, running together......................................My mother's call returned me to the real world. I suddenly realized something: I ...................................................................had read a book, and I had loved rea ............................ding that book. Everyone knew I could not read. .......................................But I had read it. Books could be incredibly wonderful and I was going to read them.....................................................................I never told my mother about my "miraculous".....................................(奇迹般地)......experience that summer, .....................but she saw a slow but remarkable improvement in ........................................my classroom performance during ............................the next year. And years later, she was proud that her son had read thousands of books, .......................................................................was awarded a PhD in literature, and authored his own books, articles, poetry and ....................................................................fiction. The power of the words has held...................................百度文库.... -. 让每个人平等地提升自我........... 14.. 4.The author ...........'s mother told him to borrow a book in order to ..................................... .. A. encourage him to do more walking .............................B. let him spend a meaningful summer ..............................C. help cure him of his reading problem ................................D. make him learn more about .......................weapons ....... 5..Why could the author manage to read the .................................book through?............A. He was forced by his mother to read it..................................B. He identified with the story in the ...............................book......C. The book told the story of his pet dog..................................D. The happy ending of the story ..........................attracted him.............. 6.What can be inferred from the last paragraph?........................................A.The author ...........has become a successful writer............................B.The author’s mother saw ......................his ... remarkable improvement.......................C.The author’s mother rewarded him with books.........................................D.The author has had happy summers ever since........................................7.Which one could be the best title of the passage?..........................................A. My Passion for Readin ....................g .B. Mum’s Strict Order ..................C. Reunion with My Beagle .....................D. The Charm of a Book .................C .A new study has discovered that meditation and oxygen sport together reduce ................................................................depression ............The Rutgers University study found that this mind and body .................................................combination, ............done twice a week for only two months ..............................,.reduced the symptoms for a group of students .....................................by 40 percent.............“We are excited by the findings because we saw such a meaningful .....................................................improvement in both clinically depressed and non ..........................................-.depressed students .................,.”said lead ......... author Dr ..........Brandon Alderman .................“It is the first time that both of these two behavioral .............................................ways have been looked at together for dealing with depression ......................................................”.Researchers ........... believe the two activities have an interactive effect in ................................................combating ......... depression ............Alderman and ...........Dr.Tracey ......... Shors discovered that a combination of mental .......................................百度文库.... -. 让每个人平等地提升自我........... 14.. and physical training (MAP)enabled students with major depressive disorder not to let ..........................................................................problems or negative thoughts defeat them ......................................Rutgers researchers say those who participated in the study began ........................................................with 30 ......minutes of focused attention meditation followed by 30 minutes of oxygen sport .....................................................................They ....were told that if their thoughts drifted to the past or the future they should refocus on .........................................................................their breathing ..............,.enabling those with depression to accept moment .........................................-.to ..-.moment ......changes .......in attention .............Shors .....,.who studies the production of new brain cells in the ...........................................hippocampus ...........—.part of the brain involved in memory and learning .........................................—.says scientists have ..................shown in animal models that oxygen sport exercise keeps a large number of certain ....................................................................cells al .......ive .....The idea for the human intervention(...............................干预..)came from her laboratory studies .............................,.she says .......,.with the main goal of helping individuals acquire new skills so that they can ................................................................learn to recover from stressful life events .......................................By learning to focus their attention and ex ....................................ercise ......,.people who are fighting ....................depression can acquire new learning skills that can help them process information and .........................................................................reduce the overwhelming recollection of memories from the past ......................................................,.Shors says ...........“We know these treatments can be practiced over a lifetime .................................................and that they will ...............be effective in improving mental health ....................................”said Alderman ...............“The good news is that this ......................intervention can be practiced by anyone at any time and at no cost ........................................................”.8...What made the research so different?...............................A ...Adopting a way of meaningful talk ..............................B ...B ...Combining ......... the two ways to treat depression .............................C ...C ...Treating depression with special medicine .......................................D ...D ...Comparing the depressed with the non ...............................-.depressed ...........9...The underlined word “combating” in Paragraph 3 can be replaced by______............................................................... A ...fighting ........B ...identifying ...........C ...distinguishing ..............D ...examining .........百度文库.... -. 让每个人平等地提升自我........... 14..1.0...What did the participants do in the research?......................................A ...They did oxygen sport half an hour before thinking ............................................B ...They thought quietly and then took exercise .......................................C ...They took exercise longer than they thought .......................................D ...They took exercise while thinking quietly ......................................1.1...What is Shors’ main purpose of her studies?....................................A ...To find out certain brain cells of humans ....................................B ...To study the production of new brain cells .....................................C ...To offer people a new method to treat stress ......................................D ...To decide the links between stress and exercise ..........................................D .Why I’ve taken a .............break from holidays .................It is a wonderful morning .....................,.as I write this ............:.hot ...,.but without being too hot. Outside .............................my window ........,.I can see the sunniest sky of the year reflected in a huge natural expand of .............................................................water. It is the kind of sun that makes you well aware of summer’s ..................................................... temporary nature ...............—.a .reminder that if I am ever to go around to book this year's holiday ......................................................,.time is running out .................. It is now close to four years since I last took a holiday. This is because I have come to ......................................................................the conclusion, over the course of my adult life, th ...........................................at I am not very good at it...................... You might ........say this sounds like saying you are not very good at drinking tea or listening to ..................................................................music....... What could possibly be difficult about the natural act of putting your working ..................................................................life on hold for a couple of weeks and going some .......................................where to do nothing?.................I was a model holidaymaker as a kid ..............................However .......,.the problems started during my ..........................twenties ..........A trip to the south of France was ended after just two days ...............................................,.mainly because .............I had an urge to check my e ....................-.mails .......Similarly .........,.my honeymoon was cut short by ........................48 ..hours .....—.not because my wife and I weren’t enjoying ourselves ............................................,.but because we were ................missing our cats ................百度文库....-.让每个人平等地提升自我...........14..So what is my problem? On the surface ..............................,.I’m probably a bit of a..................homebody..........And I just find the pressure of being on holiday too severe................................................:.it always feels.............like....having a gun held to my head and being forced to have fun...............................................Somehow.......,.packing a........list of possessions and meeting a scheduled flight has none of the excitement of ...................................................................suddenly deciding to take a day off and driving somewhere for the fun of it ...............................................................Thankfully..........,.I’m not a.......lone......This summer..........,.most of my friends have decided not.............................to have a break..............And a recent survey proved the downside of holidays...........................................,.with the results..............showing that nearly two thirds of people found that the calming effects of a holiday ......................................................................wore off within 24 hours ....................,.as stres.......s levels returned to normal.........................And this year The Idler...................magazine published its Book of Awful Holidays .........................................Here you will find a list of the five.............................most ecologically................-.damaging vacations it’s possible to take...................................,.along with 50 painful..................holiday experiences voted for on The Id .................................ler website............What interests me is what the concept of a “holiday” says about our lives..............................................................For...me..,.the point of living is to have a life you enjoy for 52 weeks a year......................................................The more I like............my life and the better I structure it ..............................,.the less I want to go away......................Maybe I’m........an unusual.........person for not liking holidays ..........................,.but I just feel the time when I’m not working is too.........................................valuable to waste on them.......................12...According to the first paragraph we can know that the writer .....................................................A.has a strong desire to book a holiday ................................B.wishes that the...............weather would change..................C.finds it is too late to enjoy the sunshine ....................................D.realizes it's time to decide whether to go on a holiday ...............................................13...What can be inferred from the sentence underlined in the second paragraph?................................................................A...people may find the man unbelievable...............................B...People thin..........k traveling is not so easy an act as drinking tea.......................................C. The writer often regrets not taking a holiday ..........................................D...The writer doesn't like drinking tea or listening to music.................................................百度文库.... -. 让每个人平等地提升自我........... 14..1.4..What does the author think of holidays .................................?.A.They are often well organized in order to please ..........................................other people .............B.He feels embarrassed when other people are having fun but he isn’t ...........................................................C.He tends to be made responsible for too much of the organization of them ...............................................................D.They are less enjoyable than breaks that have not been planned in advance .................................................................1.5.The writer takes ................ the book of Awful Holidays as an example to ................................... .. A.damage the reputation of the magazine ..................................B. prove the idea of living an easy, lazy life to be wrong ..............................................C. indicate that his dislike of holidays is widely shared ................................................D. focus entirely on bad personal experiences of ......................................... holidays ........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。
第一学期金山中学高三级期末考试综合能力测试试卷第一卷选择题一、单项选择题。
每小题3分,共108分。
每小题只有一个正确答案。
将你所选的正确答案填写在答题表上。
1.春季,正当全国人民众志成城抗击“非典”时,有一些人见利忘义,制假售假、哄抬物价。
对此,国家有关部门及时下发《关于加强防治非典药品监督和管理工作的紧急通知》,要求依据《价格法》等法律、法规严肃处理,从重处罚。
其中体现的国家宏观调控的手段是:①法律手段②经济手段③行政手段④舆论手段A.②B.①③C.①②④D.①②③④2.联合国在当代国际社会中发挥着多方面的重要作用。
在联合国参观中心入口处,有一座雕塑,是一枝枪管弯曲打结的枪。
此雕塑寓意联合国所行使的主要的职责是:A.推动发展中国家和整个世界经济的发展B.协调国际间的经济和贸易关系C.以和平方式解决国际争端,维护世界和平D.促进世界各国经济、科技、文化的合作和交流3.南水北调工程是重要的基础设施,是实现我国可持续发展战略的重大举措。
该工程的建设体现的最主要的国家职能是:A.组织和领导社会主义现代化建设B.依法治国,建设社会主义法治国家C.以德治国,加强社会主义精神文明建设D.加强国际经济合作与交流,促进经济全球化4.南水北调工程经长期论证,由全国人大审议通过,终于开工。
这说明:①认识的发展需要一个过程②国家对经济实行宏观调控③全国人大具有最高决定权④国家机构实行民主集中制A.①②③④B.②③④C.①④D.①②④党的十六大报告指出:“坚持以信息化带动工业化,以工业化促进信息化,走出一条科技含量高,经济效益好、资源消耗低、环境污染少、人力资源优势得到充分发挥的新型工业化路子。
”据此回答5—6题。
5.走新型工业化道路坚持以信息化带动工业化,提高科技含量。
这是因为:A.世界各国经济已经信息化B.科学技术是第一生产力C.我国国民经济信息化水平较高D.我国劳动者的现代信息素养较高6.在党的十六大报告中,突出的一个字是“新”。
汕头市金山中学2012届摸底测试文科综合一.选择题(每题4分,共35题144分)下图为世界某地某时刻等压线分布图(单位:百帕),回答1-2题。
1.P天气系统的名称及其可能出现的天气是:A.暖锋、梅雨 B.高压脊、干旱 C.低压、台风 D反气旋、伏旱2.Q处气压值可能是:A. 1007B.1008C.1009D.1010下图为云南石林景观,回答3-4题。
3.该地区岩石是:A.花岗岩 B.石灰岩 C.大理岩 D.流纹岩4.形成该景观的主要原因是:A.风力侵蚀 B.流水搬运 C.风力沉积 D.流水侵蚀下图是以极点为中心的部分地区日照图,图中阴影部分为黑夜,地平面与北极星仰角大于零,回答5-6题。
5.图中Q点此时的地方时可能是A.5点 B.7点 C.17点 D.19点6.假设M点所在纬线的纬度是80,那么M点与图中极点的距离是:A.111千米 B.1555千米 C.1110千米 D.5550千米读近三十年来我国某省四个不同年份的人口年龄构成示意图,回答7题。
7.图中四个年份的先后顺序是A.①②③④ B.④③②① C.③②①④ D.④①②③据2009年12月4日中央电视台报道,截止到11月份我国今年累计产销汽车超1200万辆。
结合2002-2007年我国汽车产量走势图,回答8-9题。
8.近些年来,我国汽车产量变化特点是A.汽车产量增长速度持续上升B.汽车产量持续增加C.2002年以来,每年增加的汽车产量数持续增加D.汽车产量的同比增长率仍低于我国人口增长率9.我国要从汽车生产大量跃升为汽车生产强国,正确的途径是①我国汽车产业应加强技术改造,增强品牌意识②我国汽车生产企业应注重提升规模效益③我国汽车产业要充分发挥劳动力丰富的优势④我国的汽车产业应向西部地区转移A.①② B.②③ C.③④ D.①③读我国西南地区某特大城市的空间形态图,完成10-11题。
10.该城市空间布局的平面形态为A.组团式 B.分散式C.团块状 D.条带状11.图中某服务网点很有可能是A.金融机构B.家具卖场C.星级宾馆D.高层写字楼12.《礼记-表记》说:“夏道尊命,殷人尊神,周人尊礼。
高三文科数学期末考试一、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. 设全集,集合,,则等于A .B .C .D .[0,5]2. 已知 0.30.3a =, 1.30.3b =,0.31.3c =,则它们的大小关系是A .c a b >>B .c b a >>C .b c a >>D .a b c >> 3. 复数41iz i -=+的共轭复数的虚部为 A . 52i - B .52- C .52i D .524. 已知命题p :“∀x ∈[0,1],a ≥e x ,命题q :“∃x 0∈R ,x 20+4x 0+a =0”,若命题“p ∧q ”是真命题,则实数a 的取值范围是A .(4,+∞)B .[1,4]C .[e,4]D .(-∞,1]5. 将函数()sin(2)6f x x π=-的图象向左平移3π个单位长度后,得到函数()g x 的图象,则函数()g x 的图象的一条对称轴方程可以是x = A .4π-B .2πC .6π-D .3π6. 已知公比不为1的等比数列{}n a 的前n 项和为123451,1024n S a a a a a =,且243,,a a a 成等差数列,则5S = A .3316B .3116C .23D .11167. 运行如图所示的程序框图,若输出的S 的值为480,则判断框中可以填A .60i >B .70i >C .80i >D .90i > 8. 设,m n 是两条不同的直线,,αβ是两个不同的平面,则A .若,,m n n ββα⊥⊥⊥,则m α⊥B .若,,m n αββα⊂⊂⊥,则m n ⊥C .“直线m 与平面α内的无数条直线垂直”是“直线m 与平面α垂直”的充分不必要条件D .若,,m n n m βα⊥⊥⊥,则αβ⊥9. 已知抛物线2:2(0)C y px p =>的焦点为F ,准线3:2l x =-,点M 在抛物线C 上,点A 在准线l 上,若MA l ⊥,且直线AF 的斜率AF k =AFM ∆的面积为A ... D .10. 如图,网格纸上小正方形的边长为1,粗实线画出的是某几何体的三视图,则该几何体的体积为A .2483π+ B .88π+ C .3283π+ D .32243π+11、函数23ln(44)()(2)x x f x x -+=-的图象可能是(A ) (B ) (C ) (D )12. 对于函数()f x 和()g x ,设(){|0}x f x α∈=, (){|0}x g x β∈=,若存在,αβ,使得1αβ-≤,则称()f x 和()g x 互为“零点相邻函数”,若函数()ln(1)2f x x x =-+-与2()8g x x ax a =--+互为“零点相邻函数”,则实数a 的取值范围是A.179,42⎡⎤⎢⎥⎣⎦ B.94,2⎡⎤⎢⎥⎣⎦ C. 7,33⎡⎤⎢⎥⎣⎦D. []2,4 二、填空题(每题5分,满分20分,将答案填在答题纸上)13. 已知在长方形ABCD 中,24AB AD ==,点E 是边AB 上的中点,则BD CE ⋅= .14. 《九章算术》第三章“衰分”中有如下问题:“今有甲持钱五百六十,乙持钱三百五十,丙持钱一百八十,凡三人俱出关,关税百钱,欲以钱数多少衰出之,问各几何?”其意为:“已知甲带了560钱,乙带了350钱,丙带了180钱,三人一起出关,共需要交关税100钱,依照钱的多少按比例出钱”,则丙应出 钱(所得结果四舍五入,保留整数).15. 在等腰梯形ABCD 中,AB=2DC=2,0DAB=60∠,E 为AB 的中点,将ADE∆与BEC ∆分布沿ED 、EC 向上折起,使A B 、重合于点P ,则三棱锥P-DCE 的外接球的体积为16. 已知实数,x y 满足22222x yx y x y +≥⎧⎪-≤⎨⎪+≤⎩,若(0)z x my m =->的最大值为4,则(0)z x my m =-> 的最小值为 .三、解答题 (本大题共6小题,共70分.解答应写出文字说明、证明过程或演算步骤.)17. (12分)在ABC ∆中,内角,,A B C 的对边分别为,,a b c,已知cos sin (1)22C Aa +=. (1)求C ; (2)若c =ABC ∆的面积S 取到最大值时a 的值.18. (10分)在彩色显影中,由经验可知:形成染料光学密度y 与析出银的光学密度x 由公式()0bxy Aeb =<表示,现测得试验数据如下:试求y 对的回归方程。
汕头市金山中学2012届高三高考模拟考试文数试卷一、选择题:本大题共10小题,每小题5分,满分50分,在每小题给出的四个选项中,只有一项是符合要求的.1. 设集合{0,1234,5}{12}U A ==,,,,,,{}2540B x x x =∈-+<Z ,则=⋃)(B A C U ( )A .{0,1,2,3}B .{5}C .{124},,D .{0,4,5}2. 如果命题“p 且q ”是假命题,“q ⌝”也是假命题,则( )A .命题“⌝p 或q ”是假命题B .命题“p 或q ”是假命题C .命题“⌝p 且q ”是真命题D .命题“p 且q ⌝”是真命题3. 已知△ABC 中,2AB = ,3AC =,33=⋅,则BAC ∠=( )A .150B .120C .60或120D .30或1504.“2a =”是“函数()||f x x a =-在)3[∞+上是增函数”的( )A. 必要非充分条件B. 充分非必要条件C.充要条件D.非充分非必要条件 5.执行如图所示的程序框图,输出的S 值为( ) A.3 B.-6 C. 10 D.-156. 已知双曲线2215x y m -=(0m >)的右焦点与抛物线212y x =的焦点相同,则此双曲线的离心率为( )A .6B .32C .D .34 7.若实数,x y 满足约束条件0,0,2240,360;x y x y x y ≥⎧⎪≥⎪⎨+-≤⎪⎪-++≥⎩则目标函数23z x y =-的最小值是( )A .6B .0C .72-D .24-8.直线3y kx =+与圆22(3)(2)4x y -+-=相交于,M N两点,若MN ≥k 的取值范围是( )A. 3,04⎡⎤-⎢⎥⎣⎦ B.[)3,0,4⎛⎤-∞-⋃+∞ ⎥⎝⎦C. 33⎡-⎢⎣⎦D. 2,03⎡⎤-⎢⎥⎣⎦9.已知函数)2cos()(ϕ+=x x f 满足()(1)f x f ≤对R x ∈恒成立,则( ) A. 函数(1)f x -一定是奇函数; B. 函数(1)f x -一定是偶函数; C .函数(1)f x +一定是奇函数; D. 函数(1)f x +一定是偶函数 .10.已知函数12,02()122,12x x f x x x ⎧≤≤⎪⎪=⎨⎪-<≤⎪⎩,且1()()f x f x =,21()(())f x f f x =.则满足方程2()f x x =的根的个数为( )A.0个B.2个C.4个D.6个二、填空题:本大题共5小题,考生作答4小题,每小题5分,满分20分. (一)必做题:第11、12、13题为必做题.11.复数z =1(其中i 是虚数单位),则z =______.13.已知数列21n n n n --,且12,则2011a =______.(二)选做题:第14、15题为选做题,考生只能从中选做一题. 14.(几何证明选讲选做题)如图,AB 是圆O 的直径,DE AD =,6,8==BD AB ,则ADAC= .15.(坐标系与参数方程选做题)已知直线l 方程是11x ty t =+⎧⎨=-⎩(t 为参数),,以坐标原点为极点,x 轴的正半轴为极轴建立极坐标系,圆C 的极坐标方程为1ρ=,则圆C 上的点到直线l 的距离最小值是___.三、解答题:本大题共6小题,满分80分.解答须写出文字说明、证明过程和演算步骤. 16.(本小题满分12分)某校高一某班的一次数学测试成绩(满分为100分)的茎叶图和频率分布直方图都受到不同程度的破坏,但可见部分如下,据此解答如下问题:(1)求分数在[50,60)的频率及全班人数;(2)求分数在[80,90)之间的频数,并计算频率分布直方图中[80,90)间的矩形的高;(3)若要从分数在[80,100]之间的试卷中任取两份分析学生失分情况,在抽取的试卷中,求至少有一份分数在[90,100]之间的概率.17.(本小题满分12分)已知向量)cos ,(sin ),sin 3,(sin x x x x -==,设函数n m x f ⋅=)(.(1)求函数()f x 在3[0,]2π上的单调递增区间; (2)在ABC ∆中,a ,b ,c 分别是角A ,B ,C 的对边,A 为锐角,若1)62sin()(=-+πA A f ,7=+c b ,ABC ∆的面积为32,求边a 的长.18.(本小题满分14分)如图,矩形ABCD 中,3AB =,4=BC .E ,F 分别在线段BC 和AD 上,EF ∥AB ,将矩形ABEF 沿EF 折起.记折起后的矩形为MNEF ,且平面⊥MNEF 平面ECDF .(1)求证:NC ∥平面MFD ;(2)若3EC =,求证:FC ND ⊥; (3)求四面体NFEC 体积的最大值.19.(本小题满分14分)已知集合{}21,N A x x n n *==--∈,{}63,N B x x n n *==-+∈,设n S 是等差数列{}n a 的前n 项和,若{}n a 的任一项B A a n ∈,且首项1a 是A B 中的最大数, 10750300S -<<-. (1)求数列{}n a 的通项公式; (2)若数列{}n b 满足139()2n a n n b +-=,求12233445212221n n nn a b ba ab ba a b b a -+-+-++- 的值.20.(本小题满分14分)已知椭圆)0(1:22221>>=+b a by a x C 的离心率为33,直线l :02=+-y x 与以原点为圆心,以椭圆C 1的短半轴长为半径的圆相切. (1)求椭圆C 1的方程;(2)设椭圆C 1的左焦点为F 1,右焦点F 2,直线1l 过点F 1且垂直于椭圆的长轴,动直线2l 垂直直线1l 于点P ,线段PF 2的垂直平分线交2l 于点M ,求点M 的轨迹C 2的方程. (3)若)2,(1x A 、),(22y x B 、),(00y x C 是C 2上不同的点,且BC AB ⊥,求0y 的取值范围. 21.(本小题满分14分)已知函数1)(-+=ax e x f x (a ∈R ,e 为自然对数的底数). (1)求函数)(x f 的单调区间;(2)当0<a 时,若方程0)(=x f 只有一解,求a 的值;(3)若对任意的),0[+∞∈x ,均有)()(x f x f -≥,求a 的取值范围.AB CD EF参考答案DCABC BCADC 11.11i 22+ 12. π32 13.2 14.4315.12-16.解:(1)分数在[50,60)的频率为0.008×10=0.08, …………2分由茎叶图知:分数在[50,60)之间的频数为2,所以全班人数为20.08=25, …………4分(2)分数在[80,90)之间的频数为25-2-7-10-2=4; …………6分 频率分布直方图中[80,90)间的矩形的高为425÷10=0.016. …………8分(3)将[80,90)之间的4个分数编号为1,2,3,4,[90,100]之间的2个分数编号为5,6,在[80,100]之间的试卷中任取两份的基本事件为:(1,2),(1,3),(1,4),(1,5),(1,6),(2,3),(2,4),(2,5),(2,6),(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)共15个,……10分其中,至少有一份在[90,100]之间的基本事件有 (1,5),(1,6), (2,5),(2,6), (3,5),(3,6),(4,5),(4,6),(5,6)共9个,故至少有一份分数在[90,100]之间的概率是915=0.6. …………12分17.解:(1)由题意得21cos 2()sin cos 22x f x x x x x -==1sin(2)26x π=-+ ………………………………3分 令3222262k x k πππππ+≤+≤+,Z k ∈ 解得:263k x k ππππ+≤≤+,Z k ∈ 30,2x π⎡⎤∈⎢⎥⎣⎦,263x ππ∴≤≤,或7362x ππ≤≤ 所以函数()f x 在3[0,]2π上的单调递增区间为2[,]63ππ,73,62ππ⎡⎤⎢⎥⎣⎦…………………6分 (2)由1)62sin()(=-+πA A f 得:1)62sin()62sin(21=-++-ππA A 化简得:212cos -=A 又因为02A π<<,解得:3π=A ………………………9分 由题意知:32sin 21==∆A bc S ABC ,解得8=bc , 又7=+c b ,所以22222cos ()2(1cos )a b c bc A b c bc A =+-=+-+14928(1)252=-⨯⨯+= 故所求边a 的长为5.……………12分18.(1)证明:因为四边形MNEF ,EFDC 都是矩形, 所以 MN ∥EF ∥CD ,MN EF CD ==.所以 四边形MNCD 是平行四边形,……………2分 所以 NC ∥MD , ………………3分 因为 NC ⊄平面MFD ,所以 NC ∥平面MFD . ………………4分 (2)证明:连接ED ,设ED FC O = .因为平面⊥MNEF 平面ECDF ,平面⋂MNEF 平面ECDF EF = 且EF NE ⊥, ⊂NE 平面MNEF所以 ⊥NE 平面ECDF ,………………5分又⊂FC 平面ECDF , 所以 FC NE ⊥. ……6分 又 EC CD =, 所以四边形ECDF 为正方形,所以 FC ED ⊥. …………7分 所以 ⊥FC 平面NED , ………………8分 所以 FC ND ⊥. ………………9分 (3)解:设x NE =,则x EC -=4,其中04x <<.由(2)得⊥NE 平面FEC , 所以四面体NFEC 的体积为11(4)32NFEC EFC V S NE x x ∆=⋅=-. …………11分 所以 21(4)[]222NFEC x x V +-≤=. ………………13分 当且仅当x x -=4,即2=x 时,四面体NFEC 的体积最大. ……………14分19.解: (1)由题设知: 集合A 中所有元素可以组成以3-为首项,2-为公差的递减等差数列;集合B 中所有的元素可以组成以3-为首项,6-为公差的递减等差数列. 由此可得,对任意的N n *∈,有B B A =A B 中的最大数为3-,即13a =- …………………………………………………3分设等差数列{}n a 的公差为d ,则3(1)n a n d =-+-,1101010()45302a a S d +==-因为10750300S -<<-, ∴7504530300d -<-<-,即616-<<-d 由于B 中所有的元素可以组成以3-为首项,6-为公差的递减等差数列, 所以)0,(6≠∈-=m Z m m d ,由1666m -<-<-2m ⇒=,所以12-=d所以数列{}n a 的通项公式为912n a n =-(*∈N n ) …………………………………9分(2)139n a n n n b +-== ……………………10分 于是有12233445212221n n n n a b b a a b b a a b b a -+-+-++-21343565722121()()()()n n n b a a b a a b a a b a a -+=-+-+-++-246211[1()]12224()2424(1)1212n n n b b b b -=++++=⨯=-- ……………………14分20.解:(1)33=e ,∴31222222=-==a b a a c e , ∴2a 2=3b 2 ………………2分∵直线l:02=+-y x 与圆x 2+y 2=b 2相切,∴22=b ,∴b=2,b 2=2, ………3分∴a 2=3. ∴椭圆C 1的方程是.12322=+y x ……… 4分 (2)∵|MP|=|MF 2|,∴动点M 到定直线l 1:x =-1的距离等于它的定点F 2(1,0)的距离. ………5分 ∴动点M 的轨迹是以l 1为准线,F 2为焦点的抛物线,………6分 ∴12=p,p=2 , ………7分 ∴点M 的轨迹C 2的方程为x y 42= ………8分(3)由(2)知A (1,2),200020222,2),,4(),,4(y y y y y C y y B ≠≠,y 2≠2,①则),4(),2,44(202220222y y y y y y --=--=, ………10分又因为0,=⋅⊥BC AB 所以 , 0))(2(444202222022=--+-⨯-y y y y y y ,整理得0216)2(02022=++++y y y y , ………12分则此方程有解,∴0)216(4)2(020≥+⋅-+=∆y y 解得60-≤y 或100≥y ,………13分 又检验条件①:∵y 2=2时y 0=-6,不符合题意.∴点C 的纵坐标y 0的取值范围是).,10[)6,(+∞⋃--∞ ………14分21.解:(1)()x f x e a '=+, ………1分 当0a ≥时,()0f x '>,()f x 在(,)-∞+∞上是单调增函数. ………2分 当0a <时,由()0f x '>,得ln()x a >-,()f x 在(ln(),)a -+∞上是单调增函数;由()0f x '<,得ln()x a <-,()f x 在(,ln())a -∞-上是单调减函数.………4分 综上,0a ≥时,()f x 的单调增区间是(,)-∞+∞.0a <时,()f x 的单调增区间是(ln(),)a -+∞,单调减区间是(,ln())a -∞-.(2)由(1)知,当0a <,ln()x a =-时,()f x 最小,即min ()(ln())f x f a =-,……5分 由方程()0f x =只有一解,得(ln())0f a -=,又考虑到(0)0f =,所以ln()0a -=,解得1a =-. ………7分 (3)当0x ≥时,()()f x f x -≥恒成立,即得x x e ax e ax -+-≥恒成立,即得20x x e e ax --+≥恒成立, ………8分 令()2x x h x e e ax -=-+(0x ≥),即当0x ≥时,()0h x ≥恒成立.又()2x x h x e e a -'=++,且()222h x a a '=+≥,当0x =时等号成立.……9分 ① 当1a >-时,()0h x '>,所以()h x 在[0,)+∞上是增函数,故()(0)0h x h =≥恒成立.…10分②当1a =-时,若0x =,()0h x '=,若0x >,()0h x '>,所以()h x 在[0,)+∞上是增函数,故()(0)0h x h =≥恒成立.…11分③当1a <-时,方程()0h x '=的正根为1ln(x a =-, 此时,若1(0)x x ∈,,则()0h x '<,故()h x 在该区间为减函数.所以,1(0)x x ∈,时,()(0)0h x h <=,与0x ≥时,()0h x ≥恒成立矛盾.……13分 综上,满足条件的a 的取值范围是[1,)-+∞.……14分。
2012年高中毕业班第三次高考模拟考试题数学(文科)本试卷共4页,21小题,满分150分.考试用时l20分钟. 注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上.2.选择题每小题选出答案后,用2B 铅笔把答题卡上对应题目选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上.3.非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液,不按以上要求作答的答案无效.4.考生必须保持答题卡的整洁,考试结束后,将试卷和答题卡一并交回. 参考公式:锥体的体积公式:13V Sh =,其中S 是锥体的底面积,h 为锥体的高. 一.选择题:本大题共10小题,每小题5分,满分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. 已知全集U =R ,集合{10}A x x =+<,{30}B x x =-<,那么集合()U C A B = ( ) (A ){13}x x -≤< (B ){13}x x -<< (C ){1}x x <- (D ){3}x x >2.设i 是虚数单位,则设i 是虚数单位,则31ii=- ( ) A.1122i - B.112i + C.1122i + D.112i -3.已知向量p ()2,3=-,q (),6x =,且//p q ,则+p q 的值为( )A B.C. 5 D .134. 已知函数⎩⎨⎧><=,0,ln ,0,)(x x x e x f x 则)]1([e f f =( )A .e 1 B .e C .-e1D .-e 5.等比数列{}n a 中 13a =,424a =,则345a a a ++=( )A . 33B . 72C . 84D . 1896. “1k =”是“直线0x y k -+=与圆221x y +=相交”的( ) A .充分不必要条件B .必要不充分条件C .充要条件D .既不充分又不必要条件7. 已知一个四棱锥的高为3,其底面用斜二测画法所画出的水平放置的直观图是一个边长为1的正方形,则此四棱锥的体积为( )A.2 B .6 2 C.13D .2 28由22()()()()()n ad bc K a d c d a c b d -=++++ 算得,22110(40302020)7.860506050K ⨯⨯-⨯=≈⨯⨯⨯ 附表:参照附表,得到的正确结论是( ) A .有99%以上的把握认为“爱好该项运动与性别有关” B .有99%以上的把握认为“爱好该项运动与性别无关”C .在犯错误的概率不超过0.1%的前提下,认为 “爱好该项运动与性别有关”D .在犯错误的概率不超过0.1%的前提下,认为 “爱好该项运动与性别无关”9. M ,N 是曲线y =πsin x 与曲线y =πcos x 的两个不同的交点,则|MN |的最小值为( )A .π B.2π C.3π D .2π10. 设()f x 与()g x 是定义在同一区间[,]a b 上的两个函数,若函数()()y f x g x =-在[,]x a b ∈上有两个不同的零点,则称()f x 和()g x 在[,]a b 上是“关联函数”,区间[,]a b 称为“关联区间”.若2()34f x x x =-+与()2g x x m =+在[0,3]上是“关联函数”,则m 的取值范围为 ( )A. 9(,2]4--B.[1,0]-C.(,2]-∞-D.9(,)4-+∞二、填空题:本大题共5小题,考生作答4小题,每小题5分,满分20分. (一)必做题(11-13题)11. 如图,设A 、B 两点在河的两岸,一测量者在A 的同侧所在的河岸边选定一点C ,测出AC 的距离为50m ,105,45=∠=∠CAB ACB 后,就可以计算出A 、B 两点的距离为12.在可行域内任取一点,规则如流程图所示,则能输出数对(x ,y )的概率为________.13.设F 1,F 2分别是双曲线x 2-y 29=1的左、右焦点.若点P 在双曲线上,且PF →1·PF →2=0,则|PF →1+PF →2|=________.(二)选做题(14、15题,考生只能从中选做一题)14.(几何证明选讲选做题)已知圆O 的半径为3,从圆O 外一点A 引切线AD 和割线ABC ,圆心O 到AC 的距离为22,3AB =, 则切线AD 的长为 ____ _.15.(坐标系与参数方程选做题) 已知曲线C 的参数方程为1cos ,sin .x y θθ=+⎧⎨=⎩(θ则曲线C 上的点到直线220x y -+=的距离的最大值为 .三.解答题:本大题共6小题,满分80分.解答须写出文字说明、证明过程和演算步骤. 16.(本小题满分12分) 已知函数()2cos 2cos 3f x x x π⎛⎫=-- ⎪⎝⎭. (1)先列表再用“五点法”画出函数)(x f 在5[0,]3π的简图; (2)在∆ABC 中,a ,b ,c 分别是角A ,B ,C 的对边,()1f A =,a =3,b c b c +=>3(),求b ,c 的长。
汕头市金山中学2013届高三上学期期末模拟考试英语试题本试卷共三部分,满分135分,考试用时120分钟。
I . 语言知识及应用(共两节,满分45分)第一节: 完形填空(共15小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从1―15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
When I was a law professor, a student reported that I made an error in grading his exam by giving him too many points. He was right , and after thanking him for his honesty, I changed the grade in my 1 . His beaming face turned to shock. “You’re 2 my grade?” he said angrily. “I would never have come in if ……”He didn’t finish the sentence , but it was obvious that his display of honesty was 3 . He thought he’d have it all—praise and the higher grade.Several colleagues thought I should have let the higher grade 4 because all I’d accomplished was to discourage him from being honest in the future. And every time I tell this story some people agree with this 5 .But I can’t see how I could give good reason for worsening my 6 in grading by undermining (损害) the honesty of all my grades by failing to correct an error. The grade itself would be a dishonest 7 of his knowledge and it would have been 8 to other students. How could I 9 give a student a gift of an unearned grade?I know 10 reporting an error in one’s favor is unusual, but, like 11 too much change, it’s clearly the right thing to do. People of character, those with real honesty, hate to give up 12_ as much as anyone else. The difference is that for them a good conscience and reputation is _13 enough to give reason for the cost of doing the right thing.Perhaps lowering the student’s grade did 14 him from being honest in the future, but bribing (贿赂)him to be honest so that he does the right thing when it’s cost-free would have _15 him even more. The duty to be honest is about right and wrong, not risks and rewards.1. A. files B. books C. records D. notes2. A. lowering B. correcting C. changing D. making3. A. good B. false C. special D. impressive4. A. remove B. change C. stand D. add5. A. remark B. complaint C. praise D. achievement6. A. crime B. mistake C. doubt D. guilty7. A. reaction B. sense C. sign D. reflection8. A. unfair B. cruel C. tough D. funny9. A. reluctantly B. responsibly C. impossibly D. impatiently10. A. actively B. secretly C. voluntarily D. curiously11. A. receiving B. paying C. earning D. returning12. A. benefits B. honors C. awards D. gifts13. A. pleasure B. reward C. content D. honor14. A. protect B. influence C. discourage D. separate15. A. improved B. encouraged C. blamed D. ruined第二节:语法填空(共10小题,每小题1.5分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为16-25的相应位置上。
When times become difficult, remember a moment in your life that was filled with joy and happiness. Remember 16 it made you feel, and you will have the strength you need to get through any trial.When life throws you one more obstacle 17 you think you can handle, remember something you achieved through 18 (persevere) and by struggling to the end. In doing so, you will find you have the ability 19 (overcome) each obstacle in our path.When you find 20 exhausted , remember to find a place to rest.Take 21 necessary time in your own life to dream your dreams and renew your energy, 22 you will be ready to face each new day.When you feel tension 23 (build), find something fun to do. You’ll find that the stress you feel will fade away and your thoughts will become clearer.When you 24 (face) with so many negative and draining situations, and you view your life 25 a whole and remember the positive things, you will realize how small problems may seem.II.阅读理解(共两节,满分50分)第一节:阅读理解(共20小题;每小题2分,满40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,并在答题卡上将该项涂黑。
AInventor, physicist, surveyor, astronomer, biologist, artist… Robert Hooke was all these and more. Some say he was the greatest experimental scientist of the seventeenth century. Once he worked with renowned men of science like Christian Huygens, Antony van Leeuwenhoek, Robert Boyle, Isaac Newton and the great architect, Christopher Wren.Hooke’s early education began at home, under the guidance of his father. He entered Westminster School at the age of thirteen, and form there he went to Oxford, where he came in contact with some of the best scientists in England. Hooke impressed them with his skill at designing experiments and devising instruments. In 1662, at the age of twenty—eight, he was named Curator of Experiments of the newly formed Royal Society of London. Hooke accepted the job, even though he knew that it had no money to pay him!Watching living things through the microscope was one his favorite occupations. He devised a compound microscope for this purpose. One day while observing a cork(软木) under a microscope, he saw honeycomb—like structures. They were cells—the smallest units of life. In fact, it was Hooke who coined the term “cell” as the boxlike cells of the cork reminded him of the cells of a monastery(修道院).Perhaps because of his varied interests, Hooke often left experiments unfinished. Others took up where he left off and then claimed sole(独占的)credit. This sometimes led to quarrels with colleagues. One work that he finished was his book MICROGRAPHIA, a volume that reveals the immense potential of the microscope. The book also includes, among other things, ideas on gravity and light which may have helped scientists like Newton while they were developing their own theories on these phenomena.Hooke made valuable contributions to astronomy too. A crater(陨石坑) on the moon is named after him in appreciation of his services to this branch of science.26. Robert Hooke probably went to school in .A.1647 B.1634 C.1662 D.166427. From the first paragraph, we can know that Robert Hooke .A.was famous because he worked with many scientistsB.liked making friends with the famous peopleC.received a lot from other scientistsD.made contributions to many different fields28. Robert Hooke made himself known to some of the best scientists in England by . A.learning by himself with his father’s helpB.introducing himself to themC.designing experiments and instrumentsD.refusing any reward from Royal Society of London29. Robert Hooke couldn’t get along well with his colleagues because .A.he cou ldn’t finish his work on time sometimesB.he had all kinds of interests in his daily lifeC.he was too proud to look up to themD.the other scientists took the fruits of his experiments30. Which of the following about the book MICROGRAPHIA is TRUE?A.It has been used in many fields.B.Its ideas on gravity and light might have been helpful for Newton.C.Newton realized the importance of it.D.Hooke thought highly of Newton’s scientific theory in i t.BEaster(复活节) is still a great day for worship, randy in baskets and running around the yard finding eggs, but every year it gets quite a bit worse for bunnies.And no, not because the kids like to pull their ears. The culprit is climate change, and some researchers found that rising temperatures arc having harmful effects on at least five species of rabbit in the US.Take the Lower Keys March rabbit, for instance. An endangered species that lives in the Lower Florida Keys, this species of cottontail is a great swimmer — it lives on the islands! — but it is already severely affected by development and now by rising levels. According to the Center for Biological Diversity, an ocean level rise of only 0. 6 meters will send these guys jumping to higher ground and a 0.9-meter rise would wipe out their habitat completely.The snowshoe hare, on the other hand, has a color issue. Most of these rabbits change their fur color from white in the wintertime to brown in the summer, each designed to give them better cover from predators(捕食者). As the number of days with snow decreases all across the country, however, more and more bunnies arc being left in white fur during brown dirt days of both fall and spring, making them an easier mark for predators. Researchers know that the color change is controlled by the number of hours of sunlight, but whether the rabbit will be able to adapt quick enough to survive is a big question. The National Wildlife Federation has reported that hunters have noticed their numbers are already markedly down.American pikas or rock rabbits, a relative of rabbits and hares, might be the firs' of these species to go extinct due to climate change. About 7-8 inches long, pikas live high in the cool, damp mountains west of the Rocky Mountains. As global temperatures rise, they would naturally migrate to higher ground — but they already occupy the mountaintops. They can't go any higher. The National Wildlife Federation reports that they might not be able to stand the new temperatures as their habitat beats up.The volcano rabbit has the same problem. These rabbits live on the slopes of volcanoes in Mexico, and recent studies have shown that the lower range of their habitat has already shifted upward about 700 meters, but there are not suitable plants for them to move higher, so they are stuck in the middle. Scientists are concerned about their populations.Native to the US, pygmy rabbits weigh less than 1 pound and live in the American West. They are believed to be the smallest rabbits in the world. Their habitats have been destroyed by development. Several populations, such as the Columbia Basin pygmy, almost went extinct and were saved by zoo breeding programs. Pygmy rabbits also rely on winter cover by digging tunnels through the snow to escape predators, but lesser snowfall is leaving them exposed.All of this gives new meaning to dressing up in a giant bunny costume this Easter.31. The writer mentions Easter at the beginning of the passage in order to_______.A. show the importance of Easter DayB. introduce the issue about bunniesC. remind people of Easter traditionsD. discuss the relationship between Easter and bunnies32. The word "culprit" ( Paragraph 2) is closest in meaning to______.A. criminalB. judgeC. victimD. producer33. According to the passage, some rabbits can now be easily Uncovered by predators because they_______A. are exposed lo more skillful huntersB. have moved to habitats with fewer plantsC. haven't adapted themselves to climate changeD. can't change their fur color into white in the fall and the spring34. The problem faced by volcano rabbets and rock rabbits is that________.A. both are affected by 1ess snowB. both are affected by rising sea levelsC neither can find enough food D. neither can migrate to higher places35. Which best describes the writer's tone in the postage?A. Approving.B. Concerned.C. Enthusiastic.D. Doubtful.C36.Tim wants to polish his writing, it is best for him to attend the related activity on________.A. MondayB. TuesdayC. ThursdayD. Friday37.Which of the following descriptions about the annual Children’ s Gathering is true?A. Tickets are a must in order to attend it.B. Only those who have received an invitation are admitted in the Gathering.C. You have to make a reply to the invitation to make sure you get a seat.D. You’ d better apply in advance because there are not enough seats for everyone.38.Which of the following is NOT true according to the announcement?A. The children who are interested in the mysteries of killer dinosaurs can attend the Ellen DeGeneresShow on Friday.B. Children can’ t attend all the activities with their parents.C. Children can choose more than one of the activities.D. Children can borrow some relevant books for the activities.39.If there is an emergency, you should________.A. call the Help DeskB. contact hld @ wnbl. corgC. stay in the library and waitD. ring 926 363740.The announcement is mainly intended for________.A. staff members of the libraryB. parents of the school childrenC. the school childrenD. volunteers of the activitiesDPop stars today enjo y what once only belonged to the royalty. Wherever they go, people turn out in their thousands to greet them. The crowds go wild trying to catch a brief glimpse of theirsmiling, colorfully dressed idols. The stars are transported in their chauffeur driven RollsRoyces, private helicopters or executive aeroplanes . They are surrounded by a permanent entourage(随从) of managers, press agents and bodyguards. Photographs of them appear regularly in the press and all their comings and goings are reported,for, like royalty, pop stars are news. If they enjoy many of the privileges of royalty, they certainly share many of the inconveniences as well. It is dangerous for them to make unscheduled appearances in public.They must be constantly shielded from the adoring crowds who idolize them. They are no longer private individuals, but public property. The financial rewards they receive for this sacrifice cannot be calculated, for their rates of pay are great.And why not? Society has always rewarded its top entertainers lavishly. The great days of Hollywood have become legendary: famous stars enjoyed fame, wealth and adulation (奉承) onan all time scale. By today’ s standards, the excesses of Hollywood do not seem quite sospectacular. A single gramophone record nowadays may earn much more in royalties than the films of the past ever did. The competition for the title “Top of the Pops” is fierce, but the rewards are truly huge.It is only right that the stars should be paid in this way. Don’t the top men in industry earn enormous salaries for the service they perform to their companies and their countries? Pop stars earn vast sums in foreign currency —often more than large industrial companies —and the taxman can only be grateful for their massive annual contributions to the exchequer(国库). So who would begrudge them their rewards?It’ s all very well for people in boring jobs to complain about the successes and rewards of others. People who make envious remarks should remember that the most famous stars represent only the tip of the iceberg. For every famous star, there are hundreds of others struggling to earn a living. A man working in a steady job and looking forward to a pension at the end of it has no right to expect very high rewards. He has chosen security and peace of mind, so there will always be a limit to what he can earn. But a man who attempts to become a star is taking enormous risks. He knows at the outset that only a handful of competitors ever get to the very top. He knows that years of concentrated effort may be rewarded with complete failure.But he knows, too, that the rewards for success are very high indeed: they are the payback for the huge risks involved and once he makes it, he will certainly earn them. That’ s the essence of private enterprise.41.The author develops the passage mainly by ________.A. comparing different ideasB. giving explanationsC. inferringD. listing typical examples42.The underlined word “begrudge” in the third paragraph is closest in meaning to ________. A. be jealous of B. be satisfied with C. be anxious about D. be crazy about 43.According to the passage, which of the following can match the view of the author?A. He who laughs last laughs best.B. If you venture nothing, you will gain nothing.C. He who makes no mistakes makes nothing.D. Success belongs to the persevering.44.The author holds a(n) ________attitude towards the high income of pop stars.A. criticalB. approvalC. optimisticD. indifferent45.Which of the following is true according to the passage?A. People are blind in idolizing stars.B. There is fierce competition in becoming pop stars.C. The government taxes pop stars very little.D. Pop stars’ life is more luxurious than that of royalty.第二节信息匹配(共5小题;每小题2分,满分10分)请阅读下列应用文和相关信息,并按照要求匹配信息。