2015年1月高三期末试卷
2015年1月青岛莱西市高三期末考试数学(文)参考答案
高三教学质量检测（二）文科数学试题参考答案及评分标准一、选择题：(本大题共10个小题，每小题5分，共50分。
在每小题给出的四个)11.2sin3x x -+; 12.430x y ±=；13.π；14.3；15.④ 三、解答题：（本大题共6个小题，满分75分，解答应写出必要的文字说明、证明过程和演算步骤。
） 16．（本小题满分12分）解：(Ⅰ)1cos 211()22cos 2122222x f x x x x +=--=-- sin(2)16x π=-- ……………………………………………………………………4分51212x ππ-≤≤，22363x πππ∴-≤-≤，从而sin(2)16x π≤-≤ 当sin(2)16x π-=，即262x ππ-=，亦即3x π=时，()f x 取得最大值；……5分当sin(2)62x π-=-，即263x ππ-=-，亦即12x π=-时，()f x 取得最小值 ………………………………………………6分(Ⅱ)因为向量(1,sin )m A =与向量(2,sin )n B =平行， 所以sin 2sin B A =，即2b a =1a =，2b ∴= ……………………………………………………………………8分由()0f C =sin(2)16C π⇒-=0C π<<，112666C πππ-<-<，262C ππ∴-=3C π⇒=………………10分214212cos 33c c π∴=+-⨯⨯=⇒=12分17．（本小题满分12分）解：若命题p 为真,2[,]23x ππ∈-，0a >，223a ax a ππ∴-≤≤ ()2cos f x a ax =在区间2[,]23ππ-上恒大于零，22232a a ππππ⎧->-⎪⎪∴⎨⎪<⎪⎩，又0a >，304a ∴<<…………………………………………5分若命题q 为真，直线50ax y +-=的斜率为k a =-，又直线50ax y +-=的斜率11[,]24k ∈--，1124a ∴-≤-≤-1142a ⇒≤≤ ……………………………………………………9分()p q ∧⌝为真命题，∴p 为真命题，q 为假命题304110,42a a a ⎧<<⎪⎪∴⎨⎪<<>⎪⎩或104a ⇒<<，或1324a <<……………………………12分 18．（本小题满分12分） 解：（Ⅰ）削前棱柱为直三棱柱，AE ∴⊥面ABC AB ⊂面ABC ，AB AE ∴⊥ 由俯视图可知AB AC ⊥AC AE A =，AB ∴⊥平面ACDE …………………………………………1分 由俯视图、侧视图可知：4,2====CD AE AB AC ，ACDE 为直角梯形∴该几何体的体积13B ACDE ACDE V V S AB -==⋅1(42)22432+⨯=⨯⨯=…4分（Ⅱ）连接MN ，M 是BD 的中点，N 是BC 的中点，1//2MN CD ∴，12MN CD =AE 、CD 为棱柱侧棱的一部分，//AE CD ∴2AE =，4CD =，12AE CD ∴=//AE MN ∴，AE MN =∴四边形ANME 为平行四边形，EM AN //∴ ………………………………………7分 ⊄AN 平面CME ,⊂EM 平面CME ,直观图MDEBAC N∴//AN 平面CME ……………………………………………………………8分（Ⅲ）几何体是直三棱柱被削去包括上底在内的一部分后剩下的，CD ∴⊥面ABC ，CD ⊂面BCD ∴平面ABC ⊥平面BCD由俯视图可知AB AC =，N 是BC 的中点， AN BC ∴⊥⊥∴AN 平面BCD …………………………………………………………………10分 由(Ⅱ)知：EM AN // ⊥∴EM 平面BCD 又⊂EM 平面BDE ，∴平面BDE ⊥平面BCD ………………………………12分 19．（本小题满分12分） 解: （Ⅰ）∵221n n n a S a -=，∴当2n ≥时，2112()()1n n n n n S S S S S -----=， 整理得：2211n n S S --=（2n ≥），令1n =，则211121a S a -=，由于数列}{n a 各项均为正数，所以2111, 1a S == ∴数列2{}n S 为首项和公差都是1的等差数列． ………………………………5分 ∴2n S n =，由于数列}{n a 各项均为正数，0n S ∴>，∴n S = ∴2n ≥时，1n n n a S S -=-=11a =适合此式∴数列}{n a的通项公式为n a = ……………………………………8分（Ⅱ）4221141(21)(21)2121n n b S n n n n ===---+-+ ∴2221335(21)(21)n T n n =+++⨯⨯-+ 11111(1)()()3352121n n =-+-++--+1212121n n n =-=++………………12分20．（本小题满分13分）解：（Ⅰ）由题意得3c c a=⎧⎪⎨=⎪⎩⇒a =．……………………………………2分结合222a b c =+，解得23b =．所以，椭圆的方程为131222=+y x ． ………………………………………………4分 （Ⅱ）由22221,,x y a b y kx ⎧+=⎪⎨⎪=⎩得222222()0b a k x a b +-=．设1122(,),(,)A x y B x y ，则2212122220, a b x x x x b a k +==-+， ………………………………………………5分 进而22221212222k a b y y k x x b a k ==-+．因为点M 、N 的坐标分别为113(,)22x y M +、223(,)22x y N +， 依题意OM ON ⊥，∴1OM ON k k ⋅=-，即1212133y yx x ⋅=-++，⇒12121293()0y y x x x x ++++=，∴222222(1)90a b k a k b+-+=+， ……………………………………………………9分22229b a c a =-=-，∴222222(9)(1)90(9)a a k a k a -+-+=+-． ⇒()42224242218818181111818981a a k a a a a a -+==--=---+---………………11分2322≤<e ，∴a ≤<21218a ≤<． ∴218k ≥，即2(,][,)44k ∈-∞-+∞．……………………………………13分 21．（本小题满分14分）解: （Ⅰ）当2a =-时，2()(222)x f x x x e =--，2()(42)(222)2(1)(2)x x x f x x e x x e x x e '=-+--=-+………2分由()0f x '=1x ⇒=，或2x =-当x 变化时，()f x '，()f x 变化如下表2分由表可知：210()(2)f x f e=-=极大，()(1)2f x f e ==-极小…………………………………4分 （Ⅱ）2()(22)(2)x x f x ax e ax x a e '=--+--+ 2[2(1)2]x ax a x a e =--++-要使()f x 在[1,1]-上单调递减，只要()22120ax a x a --++-≤ ……………5分令2()2(1)2g x ax a x a =--++-①当0a =时，()22g x x =--，在[1,1]-内()(1)0g x g ≤-=，∴()0f x '≤ 函数()f x 在[1,1]-上单调递减………………………………………………………7分 ②当0a >时，2()2(1)2g x ax a x a =--++-是开口向下的二次函数，其对称轴为1(1)1x a=-+<-，∴()g x 在[1,1]-上递减，为使()f x 在[1,1]-上单调递减，必须max ()(1)20g x g a =-=≤0a ⇒≤ 而此时0a >，产生矛盾∴此种情况不符合题意 ………………………………………………10分 ③当0a <时，2()2(1)2g x ax a x a =--++-是开口向上的二次函数，为使()f x 在[1,1]-上单调递减，必须()0f x '≤，即()0g x ≤在[1,1]-上恒成立， ∴(1)0(1)0g g ≤⎧⎨-≤⎩ ⇒0240a a ≤⎧⎨--≤⎩⇒20a -≤< ………………………………13分综合①②③得实数a 的取值范围为[2,0]- ………………………………………14分。
2015年北京高考语文朝阳区第一学期期末试题(附答案)解析
北京市朝阳区2014—2015学年度高三年级第一学期期末统一考试语文试卷（满分150分考试时长150分钟） 2015.1本试卷共8页。
考生务必将答案答在答题卡上，在试卷上作答无效。
考试结束后，将本试卷和答题卡一并交回。
一、本大题共7小题，共22分。
阅读下面的文章和链接材料，完成1—7题。
①饱受雾霾之苦的今人，不免感叹：“要是在古代该多好啊！”古代没有现代工业，没有汽车尾气，环境污染没有现在严重，但不能说古代没有雾霾。
“霾”字在甲骨文卜辞中就已出现，《诗经》中也有关于霾的记载，说明霾很早就有了，并非现在才出现。
②在古代，霾主要指由于刮风、雨雾和尘土飞扬造成的空气混浊，大面积灰蒙昏暗的现象。
《晋书・天文志》中对霾有确切解释：“天地四方昏蒙若下尘，十日五日已上，或一月，或一时，雨不沾衣而有土，名曰霾。
”③搜罗史料，我们发现古代关于霾的记载，通常并不使用“霾”一词，而是仅描述现象，如《汉书》中的“蒙黄浊”“蒙，微而赤”。
也偶有直接用“霾”字记载的，比如《明宪宗实录》记载:“自春徂．夏，天气寒惨，风霾阴翳……近一二日来，黄雾蔽日，昼夜不见星日。
”再如，《清史稿》载，康熙六十年，“会试出榜，黄雾四塞，霾沙蔽日”。
④面对严重的霾灾，古人如何治理呢？⑤皇帝下罪己诏算是一种“治理”之法。
中国古代有“天人感应”的哲学思想，汉代董仲舒加以理论阐述，有“灾异谴告”之说，将灾异的发生视为帝王治理国家失职造成的后果。
一旦发生灾异，皇帝就有可能下罪己诏，对施政方针进行反省。
《汉书》记载：“西北有如火光。
壬寅晨，大风从西北起，云气赤黄，四塞天下，终日夜下著地者黄土尘也。
”这是由大风卷起尘土所形成的黄霾天气，情形严重，朝野震恐，以为上天降下灾异来“谴告”当政者。
汉成帝看这阵势，赶紧下罪己诏说：“朕承先帝圣绪，涉道未深，不明事情，是以阴阳错谬，日月无光，赤黄之气，充塞天下。
咎在朕躬。
”⑥第二个“治理”的办法是推荐贤才，贬黜奸佞和贪腐。
高中英语真题：2015届高三第一学期期末考试试卷 试题.doc
Persuasion has produced three film adaptations: a 1995 version starring Amanda Root and Ciaran Hinds, a 2007 TV miniseries with Sally Hawkins and Rupert Penry-Jones, and a 1971 miniseries with Ann Firbank and Bryan Marshall.
Jane Austen once compared her writing to ____37___(paint) on a little bit of ivory（象牙）, two inches square. Readers of Persuasion will see that ___38____ her skill of delicate, ironic(讽刺的) observations on social custom, love, and marriage nor her ability____39___ ( apply) a sharp focus to English manners and morals has abandoned her in her final finished work.
山东省烟台市2015年1月高三期末考试英语试题含答案
高三期末自主练习英语参考答案听力：1—5 CBBAB 6—10 CBAAB 11—15 BCABC 16—20 ACAAC 阅读理解：21—25 CBBDB 26—30 CBDBC 31—35 AACDB 36—40 DFGAC 完形填空：41—45 CBABD 46—50 DABCB 51—55 ADDDC 56—60 AADBC语法填空：61. one 62. why 63. smoking 64. to meet 65. a 66. what 67. actually68. are69. uncomfortable 70. but短文改错：When I went to high school on the first day, I felt exciting. A fter 9 years’ study, I felt I was so closelyexcitedcloseto university. During the first year, I made many friends. I got to know all of my classmates. Because theThough/Al thoughschool work was tough, I shared happiness and sorrow for my friends. When∧ second year came, I waswith the arranged to other class. I was worried that no one could talk to me, but I made new friends quickly. Now itanotherwas the last year of my high school life, but I’m determined to study more harder and make greateris andprogress. High school life is challenging for me, but I won’t give out.in书面表达(One possible version)Dear Sir/Madam,After careful consideration and investigation, I think your college is an ideal place for my college education, where I want to major in English literature. I’m obsessed with English literature due to its long history and a long list of world-famous writers. I’m sure I can get along well with itbecause English is my favorite subject in high school, which will be helpful for my further study in college.As to my hobbies, I’m a keen basketball fan and I play a lot of it at school. What’s more, I’m crazy about rock music and my dream is to found a rock group. I hope my dream will come true in college.I am looking forward to receiving your early reply.Yours sincerely,Li Hua附：听力录音材料1. W: The weather forecast said that we will have another wonderful day tomorrow. Shall we goand climb Mount Tai?M: Good idea. But we’d better leave early, or else we’ll get caught in traffic.2. M: Honey, do you know what time Katie will be home?W: Uh, she should be here any minute. She took the car to pick up something from the bookstore.3. M: Mom asked me to go grocery shopping before she left for work this morning, but I need tofinish my school project. Can you do it, Martha?W: I guess so. I just finished my homework. What did mom want you to buy?4. W: Hey, I want to buy some books, but I don’t have any money right now. Can you lend mesome?M: Sorry, I don’t have any either. Why don’t you ask Amelia? She never seems to have money problem.5. W: Hello, may I help you?M: Hi, we’re interested in seeing the rooms for rent.W: Oh, OK! Well, we have two bright, sunny rooms available, and the house is very quiet. Each room is $40 a month.6. W: Why are you so wet? It’s not raining.M: I know… I was playing with our son, and he pushed me in the pool.W: Ha-ha! With all of your clothes on?M: Yes. He thought it was very funny. I think he is still laughing about it. I’m still laughing, too. W: You poor thing. I’ll get you a towel before you catch a cold.M: Thank you. And tell our son that next time, I’m throwing him in first.W: Not until you teach him how to swim.M: Of course.7. W: Do you think dad is ok? He seems a bit sad.M: I know. Mom told me that he lost his job a few weeks ago.W: What? That’s terrible. Why wouldn’t she tell me?M: She probably didn’t want to worry you.W: I understand. I just wish he felt comfortable talking to me about things like this. He’s such a great father.M: I wouldn’t worry. Dad is a very smart man. He’ll find another job very quickly.W: I know. But in the meantime, we should try to cheer him up. Let’s cook him his favorite dinner tonight. Roast beef and potatoes, remember?M: That’s a great idea! I’m sure that will make him happy.8. W: Hi, I scheduled an appointment with Dr. Smith, but I can’t make it on that day.M: When was your appointment?W: Monday.M: At what time?W: 10:00 in the morning.M: OK, I’m looking at your appointment now. What day would you like to change it to?W: I would prefer next Thursday.M: And what time would be best for you?W: I’d like to come at 2:00 in the afternoon.M: Sorry, that time isn’t available. How about 8:00 in the morning?W: OK, I can make that.M: Fine. I’ve put you down for that time.9. W: Hey, you don’t look so good.M: I only got two hours of sleep last night. I went to bed at four in the morning and got up at six.W: What? You need to sleep more than that!M: I know, but I have to finish this essay for my American history class. It’s due the day after tomorrow. And I have to write an English literature exam in three days.W: But if you’re too tired, you won’t be able to think properly.M: You’re right. I’ve hardly written anything since nine.W: Why don’t you take a nap? It’s only eleven in the morning. You’ll still have the rest of the day to write.M: But then there’s art history class at two.W: Maybe you can skip it. I’ll be attending it. You can borrow my notes tomorrow.M: Oh, that’d be great. Hey, maybe we can meet for lunch later in the cafeteria.W: Sure.10. Please listen carefully. We’ll be hiking down into the Grand Canyon soon. But even though it’sa comfortable 26 degrees here now, it’ll get much hotter as we go down. In fact, when we getto the bottom four hours from now, it’ll be 43 degrees down there. So, everyone must take along at least three liters of water, and something to eat. The heat can kill! In fact this year four people have already died in the canyon from heat exhaustion. One of them, a healthy 24-year-old man, just died one week ago. These have been the first heat-related deaths in the canyon in five years. Normally, people died in the canyon when they fall into it. Sometimes they also just get lost or get bitten by snakes, but this year has been extremely hot. The average daily temperature has been 41 degrees at the bottom. So, be careful and tell me if you feel uncomfortably hot.。
2015年泰安高三上期期末1月考试
高三年级考试物理试题2015．1 本试卷分第I卷(选择题)和第Ⅱ卷(非选择题)两部分，共6页，满分100分，考试时间90分钟．第I卷(选择题共40分)注意事项：1．答第I卷前，考生务必将自己的姓名、考号、试卷类型、考试科目用铅笔涂写在答题卡上．2．每小题选出答案后，用铅笔把答题卡上对应题目的答案标号涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，不能答在试卷上．3．考试结束后，监考人员将本试卷和答题卡一并收回．一、选择题：(本题共10小题，每小题4分，共40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4分，选对但不全的得2分，有选错的得0分．)1．关于力和运动的关系，下列说法中正确的是A．物体做曲线运动，其速度一定改变B．物体做曲线运动，其加速度可能不变C．物体在恒力作用下运动，其速度方向一定不变D．物体在变力作用下运动，其速度大小一定改变2．利用霍尔效应制作的霍尔元件，广泛应用于测量和自动控制等领域。
如图是霍尔元件的工作原理示意图，磁感应强度B垂直于霍尔元件的工作面向下，通入图示方向的电流I，C、D两侧面会形成电势差U CD，下列说法中正确的是A．电势差U CD仅与材料有关B．仅增大磁感应强度时，C、D两面的电势差变大C．若霍尔元件中定向移动的是自由电子，则电势差U CD>0D．在测定地球赤道上方的地磁场强弱时，元件的工作面应保持水平方向3．如图，用OA、OB两根轻绳将花盆悬于两竖直墙之间，开始时OB绳水平。
现保持O点位置不变，改变OB绳长使绳右端由B点缓慢上移至B’点，此时OB’与OA之间的夹角θ< 90°。
设此过程OA、OB绳的拉力分别为F OA、F OB，则下列说法正确的是A．F OA一直减小B．F OA一直增大C．F OB一直减小D．F OB先减小后增大4．如图两颗卫星1和2的质量相同，都绕地球做匀速圆周运动，卫星2的轨道半径更大些。
闸北区2015年一月度第一学期高三数学(理科)期末考试及评分标准
闸北区2014学年度第一学期高三数学（理科）期末练习卷考生注意：1. 本次测试有试题纸和答题纸，解答必须在答题纸上，写在试题纸上的解答无效．2. 答卷前，考生务必在答题纸上将姓名、学校、考试号，以及试卷类型等填写清楚，并在规定区域内贴上条形码．3. 本试卷共有16道试题，满分150分．考试时间120分钟．一、填空题（54分）本大题共有9题，要求在答题纸相应题序的空格内直接填写结果，每个空格填对得6分，否则一律得零分． 1．若复数i21i2+-a （i 是虚数单位）是纯虚数，则实数a = ． 2．若)(x f 为R 上的奇函数，当0<x 时，)2(log )(2x x f -=，则=+)2()0(f f ． 3．设定点)1,0(A ，若动点P 在函数)0(2>+=x xx y 图像上，则PA 的最小值为 ． 4．用数字“1,2”组成一个四位数，则数字“1,2”都出现的四位偶数有 个．5．设*∈N n ，圆122141:()(1)41n n n C x y n +--+-=+的面积为n S ，则=+∞→n n S lim ．6．在Rt ABC ∆中，3==AC AB ，,M N 是斜边BC 上的两个三等分点，则AM AN ⋅的值为 ． 7．设函数)sin(215)(x x f π=，若存在)1,1(0-∈x 同时满足以下条件：①对任意的R ∈x ，都有)()(0x f x f ≤成立；②22200[()]x f x m +<，则m 的取值范围是 ．8．若不等式21x x a <-+的解集是区间()33-，的子集，则实数a 的取值范围为 ． 9．关于曲线1:34=-y x C ，给出下列四个结论： ①曲线C 是双曲线； ②关于y 轴对称；③关于坐标原点中心对称； ④与x 轴所围成封闭图形面积小于2． 则其中正确结论的序号是 ．（注：把你认为正确结论的序号都填上） 二、选择题（18分）本大题共有3题，每题都给出四个结论，其中有且只有一个结论是正确的，必须把答题纸上相应题序内的正确结论代号涂黑，选对得6分，否则一律得零分. 10．“2≠a ”是“关于y x ,的二元一次方程组⎩⎨⎧=-+=+1)1(32y a x y ax 有唯一解”的 【 】A ．必要不充分条件；B ．充分不必要条件；C ．充要条件；D ．既不充分也不必要条件．11．已知等比数列}{n a 前n 项和为n S ，则下列一定成立的是 【 】A ．若30a >，则20150a <；B ．若40a >，则20140a <；C ．若30a >，则20150S >；D ．若40a >，则20140S >．12．对于集合A ，定义了一种运算“⊕”，使得集合A 中的元素间满足条件：如果存在元素e A ∈，使得对任意A a ∈，都有e a a e a ⊕=⊕=，则称元素e 是集合A 对运算“⊕”的单位元素．例如：R =A ，运算“⊕”为普通乘法；存在R 1∈，使得对任意R ∈a ，都有11a a a ⨯=⨯=，所以元素1是集合R 对普通乘法的单位元素． 下面给出三个集合及相应的运算“⊕”： ①R =A ，运算“⊕”为普通减法；②A ={m n m n A A ⨯⨯表示m n ⨯阶矩阵，**∈∈N ,N n m }，运算“⊕”为矩阵加法； ③{}A X X M =⊆（其中M 是任意非空集合），运算“⊕”为求两个集合的交集． 其中对运算“⊕”有单位元素的集合序号为 【 】A ．①②；B ．①③；C ．①②③；D ．②③．三、解答题（本题满分78分）本大题共有4题，解答下列各题必须在答题纸的规定区域（对应的题号）内写出必要的步骤．13．（本题满分18分，第（1）小题9分，第（2）小题9分）请仔细阅读以下材料：已知()f x 是定义在(0,)+∞上的单调递增函数．求证：命题“设+∈R ,b a ，若1>ab ，则)1()1()()(bf a f b f a f +>+”是真命题．证明 因为+∈R ,b a ，由1>ab 得01>>ba ． 又因为()f x 是定义在(0,)+∞上的单调递增函数，于是有)1()(b f a f >． ①同理有)1()(af b f >． ②由① + ②得)1()1()()(bf a f b f a f +>+．故，命题“设+∈R ,b a ，若1>ab ，则)1()1()()(bf a f b f a f +>+”是真命题．请针对以上阅读材料中的()f x ，解答以下问题：（1）试用命题的等价性证明：“设+∈R ,b a ，若11()()()()f a f b f f a b+>+，则：1>ab ”是真命题；（2）解关于x 的不等式11()(2)()(2)x x x x f a f f a f ---+>+（其中0a >）．14．（本题满分20分，第（1）小题6分，第（2）小题6分，第（3）小题8分）如图，在海岸线EF 一侧有一休闲游乐场，游乐场的前一部分边界为曲线段FGBC ， 该曲线段是函数sin()(0,0,(0,))y A x A ωφωφπ=+>>∈，[4,0]x ∈-的图像，图像的最高点为(1,2)B -．边界的中间部分为长1千米的直线段CD ，且C D E F ∥．游乐场的后一部分边界是以O 为圆心的一段圆弧．（1）求曲线段FGBC 的函数表达式； （2）曲线段FGBC 上的入口G 距海岸线EF 最近距离为1千米，现准备从入口G 修一条笔直的景观路到O ，求景观路GO 长；（3）如图，在扇形ODE 区域内建一个平行四边 形休闲区OMPQ ，平行四边形的一边在海岸线EF 上，一边在半径OD 上，另外一个顶点P 在圆弧上，且POE θ∠=，求平行四边形休闲区OMPQ 面积的最大值及此时θ的值． 15．（本题满分20分，第（1）小题6分，第（2）小题7分，第（3）小题7分）已知12,F F 分别是椭圆2222:1(0,0)x y C a b a b +=>>的左、右焦点，椭圆C 过点()且与抛物线28y x =-有一个公共的焦点．（1）求椭圆C 方程；（2）斜率为k 的直线l 过右焦点2F ，且与椭圆交于B A ,两点，求弦AB 的长； （3）P 为直线3x =上的一点，在第（2）题的条件下，若△ABP 为等边三角形，求直 线l 的方程． 16．（本题满分20分，第（1）小题6分，第（2）小题6分，第（3）小题8分）设数列{}n a 满足：①11=a ；②所有项*∈N n a ；③⋅⋅⋅<<<⋅⋅⋅<<=+1211n n a a a a ． 设集合{}*∈≤=N ,|m m a n A n m ，将集合m A 中的元素的最大值记为m b ．换句话说，m b 是 数列{}n a 中满足不等式m a n ≤的所有项的项数的最大值．我们称数列{}n b 为数列{}n a 的 伴随数列．例如，数列1,3,5的伴随数列为1,1,2,2,3．（1）若数列{}n a 的伴随数列为1,1,1,2,2,2,3，请写出数列{}n a ； （2）设13n n a -=，求数列{}n a 的伴随数列{}n b 的前100之和； （3）若数列{}n a 的前n 项和23122n S n n c =-+（其中c 常数），试求数列{}n a 的伴随 数列{}n b 前m 项和m T ．C y 2EQ P xDBGF (- 4,0)理科答案一．填空题：4.1； 2.2-； 3.2； 7.4； π4.5； 4.6； ),2()2,.(7+∞--∞ ； 8.(,5]-∞； 9.②④二．选择题：10.11.12.A C D三．解答题： 13. 解：（1）原命题与原命题的逆否命题是等价命题.原命题的逆否命题：设+∈R b a ,，若1≤ab ，则：11()()()()f a f b f f a b+≤+ ……4分下面证明原命题的逆否命题为真命题： 因为+∈R b a ,，由1≤ab 得：10a b<≤， …………………………1分 又()f x 是定义在(0,)+∞上的单调递增函数所以1()()f a f b≤…………（1） …………………………1分同理有：1()()f b f a≤…………（2） …………………………1分 由（1）+（2）得：11()()()()f a f b f f a b +≤+ …………………………1分所以原命题的逆否命题为真命题所以原命题为真命题. …………………………1分（2）由（1）的结论有：121x xa -⋅>，即：(2)x a a > ………………………3分 ①当21a >时，即12a >时，不等式的解集为：2(log ,)a a +∞ ……………2分 ②当021a <<时，即102a <<时，不等式的解集为：2(,log )a a -∞ ………2分③当21a =时，即12a =时，不等式的解集为：R ……………2分14. 解：（1）由已知条件，得2,A = ……………………………1分又∵23,12,46T T ππωω===∴= ……………………………2分又∵当1x =-时，有22sin()263y ππφφ=-+=∴= ……2分∴ 曲线段FBC 的解析式为22sin(),[4,0]63y x x ππ=+∈-． ………1分 （2）由22sin()163y x ππ=+=得 6(1)4()kx k k Z =+--∈ …………2分又[4,0]0,3(3,1)x k x G ∈-∴==-∴-…2分OG = ……………………1分∴ 景观路GO……………1分C1y 2EQ P xD F (- 4,0)(3)如图，1,2,6OC CD OD COD π==∴=∠=……………………………………1分作x PP ⊥1轴于1P 点，在1OPPRt ∆中， θθsin 2sin 1==OP PP ……………1分 在OMP ∆中，)60sin(120sin 00θ-=OMOP …………………1分 ∴θθθθsin 332cos 2)60sin(34120sin )60sin(00-=-⋅=-⋅=OP OM ……………1分 θθθsin 2)sin 332cos 2(1⋅-=⋅=PP OM S OMPQ 平行四边形 …………………1分 θθθ2sin 334cos sin 4-=3322cos 3322sin 2-+=θθ 332)62sin(334-+=πθ )3,0(πθ∈ …………………2分 当262ππθ=+时，即6πθ=时：平行四边形面积最大值为332 …………………1分15.解（1）由题意得 1(2,0)F - 2c = …………………2分又223114a a +=-， 得，428120a a -+=，解得26a =或22a =（舍去）， …………………2分则22b =， …………1分故椭圆方程为22162x y +=． …………………1分（2）直线l 的方程为(2)y k x =-． …………………1分联立方程组22(2),1.62y k x x y =-⎧⎪⎨+=⎪⎩消去y 并整理得2222(31)121260k x k x k +-+-=． …………………3分设11(,)A x y ，22(,)B x y ．故21221231k x x k +=+，212212631k x x k -=+． …………………1分 则]4))[(1(1212212212x x x x k x x k AB -++=-+== …2分（3）设AB 的中点为00(,)M x y ．可得202631k x k =+， …………………1分02231ky k =-+． …………………1分 直线MP 的斜率为1k-，又 3P x =，所以2023(1)(31)P k MP x x k +=-=+． …………………2分当△ABP 为正三角形时，AB MP 23=，22223(1)1)(31)231k k k k ++=⋅++， …………………1分 解得1k =±． …………………1分 即直线l 的方程为20x y --=，或20x y +-=． …………………1分16. 解：（1）1,4,7． ………………6分 （2）由13n n a m -=≤，得*31log ()n m m N ≤+∈∴ 当*12,m m N ≤≤∈时，121b b == …………………………1分 当*38,m m N ≤≤∈时，3482b b b ==⋅⋅⋅== …………………1分 当*926,m m N ≤≤∈时，910263b b b ==⋅⋅⋅== …………………1分 当*∈≤≤N m m ,8027时，4802827==⋅⋅⋅==b b b ……………1分 当*∈≤≤N m m ,10081时，51008281==⋅⋅⋅==b b b ……………1分 ∴384205544183622110021=⨯+⨯+⨯+⨯+⨯=+⋅⋅⋅++b b b …………1分 （3）∵1111a S c ==+= ∴ 0c = …………………1分当2n ≥时，132n n n a S S n -=-=-∴ *32()n a n n N =-∈ …………………2分由32n a n m =-≤得：*2()3m n m N +≤∈ 因为使得n a m ≤成立的n 的最大值为m b ，所以 *123456323131,2,,()t t tb b b b b b b b bt t N --======⋅⋅⋅===∈ ……1分 当*32()m t t N =-∈时：21(1)313(1)(1)(2)226m t t t T t t m m +--=⋅⋅-+==++ …………………1分当*31()m t t N =-∈时：21(1)313(1)2(1)(2)226m t t t T t t m m +-+=⋅⋅-+==++ …………………1分当*3()m t t N =∈时：213()13(3)226m t t t T t m m ++=⋅⋅==+ …………………1分所以 **(1)(2)(3231,)6(3)(3,)6m m m m t m t t N T m m m t t N ++⎧=-=-∈⎪⎪=⎨+⎪=∈⎪⎩或 ……………1分。
2015年1月2015届高三上学期期末统考(浙江版)英语卷(正式考试版)
绝密★启用前2015年1月高三上学期期末统考【浙江卷】英语试卷选择题部分（共80分）第一部分：英语知识运用（共两节，满分30分）第一节：单项填空（共20小题；每小题0．5分，满分1 0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，并在答题纸上将该选项标号涂黑。
1．— Where were you last night? We had a wonderful party.— Oh, ________ If you had called me, I would n’t have gone to the cinema.A. What a shame!B. Who cares?C. bad luck!D. What a coincident!2．At the annual meeting, the mayor of Jingmen Xiao Juhua urged the related departments to take _______ measures to ensure equal rights for migrant children.A. apparentB. effectiveC. elegantD. reasonable3．China is willing to ___________ cooperation and exchange with other countries in regards to the Internet and share the opportunities created by the Internet in the spirit of mutual opening-up and respect.A. come outB. carry outC. take outD. make out4．TV series Where Are We Going, Dad have made an _______ on kids since it was broadcast on Hunan TV.A. explanationB. destinationC. imaginationD. impression5．The word “media” basically refers to ________ we commonly call newspapers, magazines, radios and televisions.A. whichB. thatC. whatD. where6．Teachers should allow their students to study ________ from the start, and it is bound to result in their ability to deal with problems on their own.A. theoreticallyB. sociallyC. optionallyD. autonomously7．_______we work hand-in-hand and redouble our efforts, our relations will surely embrace an even brighter future.A．So long as B.However C. Which D.Now that8．“The money _________all go to his son, according to the will made by Mr Green,” declared the judge.A. shouldB. must C .shall D. may9．The magnificent land of Australia has ______ worldwide attention with its exotic, charming landscape, dynamic economy, vibrant people and diversified culture.A.attractedB.spreadC.updatedD. described10．—Why does the River smell terrible?—Because large quantities of water .A. have pollutedB. have been pollutedC. has been pollutedD. is being polluted11．It has been said that “happiness is like a butterfly, which, when________ , is always beyond our grasp, but which, i f you will sit down quietly, may alight upon you.” (pursue)A. pursuingB. pursuedC. to pursueD. having pursued12．Your ideas are very interesting, but we need ______ suggestions to get us out of the trouble.A. impressiveB. brilliantC. practicalD. permanent13．I look forward to my fifth trip to this land _______ I will pay a state visit to Australia and attend the ninth G20 summit, in Brisbane.A. during whichB. on whichC.at whichD. which14．________ in the pervasive sunshine in the Southern Hemisphere of November, the Australian continent is brimming with vigour and vitality.A. BathingB.BathedC.To batheD.Having been bathed15．A British education official has urged primary schools in his country to return to _______ traditional "whole class teaching" method in order to reproduce its success in China, _______ Daily Mail reported on Sunday.A.a; theB. a;aC.the; theD.the; a第3页共14页◎第4页共14页16．—Have you got the ticket to the football match? —No. When I got to the ticket office, ______ was left.A. nothingB. noneC. no oneD. few17．Most of the old are somewhat cut off from the fast developing world and that’s why they are so easily ________ by the cheaters.A. taken inB. taken upC. taken onD. taken off18．Those kind-hearted donators would like to set up a special school to accept all disabled students, ________ education level and background.A. in need ofB. in honor ofC. in favor ofD. regardless of19．We will have six-day holiday during the coming APEC meetings traffic on the roads.A to easeB easingC easeD having eased20．—People often don't appreciate what they have, do they?—No, _________ they lose it.A. ifB. afterC. untilD. when第二节：完形填空（共20小题；每小题1分：满分20分）阅读下面短文，掌握其大意，然后从21～40各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。
2015年1月2015届高三上学期期末统考(福建版)英语卷(正式考试版)
第3页共16页◎第4页共16页A. Children.B. Old people.C. Women.第二部分英语知识运用第一节单项填空（共15小题;每小题1 分,满分15分）21. _______recent article blamed Facebook’s ability to ruin friendship, saying that it limits _______communication to typing and encourages people to spend far too much time with friends they have never met.A. A, theB. The ; theC. A; /D. The; a22. He explained that if I looked for the best in people, I would get the best _________.A. in needB. in placeC.in timeD. in return23. In the hunt for a safer cigarette, e-cigarettes are becoming a popular choice among those either trying to quit or looking to replace standard tobacco smoke with a(n) ________that manufacturers claim to be safer.A. praticeB.solutionC. alternativeD. addiction24. However, don't suppose that just because you have found out about housing from a friend it is necessarily going to be better than________ found through any other source.A.thoseB. oneC.thatD. it25. With social networking and the tools that are _______ to students today, we expect that they willhave formed these social bonds really for life.A. accurateB. availableC.abnormalD. apparent26. Whenever there is a latest phone model being produced by companies such as Apple, Samsung, LG, Sony, etc., the public is all eyes and all ears on ______consists of the latest product______is in the market.A．what , what B．that, that C．that, which D．what, that27. We should well balance our work and relaxation, and ____________, as everybody would agree , can we have a good state of mind.A. if we keep doing thatB. in that caseC. only by doing thatD. due to that28. It was on the plane _____ I was travelling to Japan _____ I came across my former teacher.A. that; whereB. that; thatC. which; thatD. where; that 29. Kroc was a salesman who met the McDonald brothers in 1954, when he _______ milkshake-mixing machines.A.had soldB. was sellingC.would sellD.has sell30. Not only are students in China suffering from this problem, but kids in the United States are also ________ heavy school bags..A.kept up withB. come down withC.ended up withD. fed up with31. Mother’s Day, which accounts for a one-quarter of annual holiday purchases, according to the Society of American Florists, is ________ the day when flowers are delivered to the doorsteps of many mothers.A. transparentlyB. theoreticallyC. traditionallyD. thankfully32. _________during the last days of the “cultural revolution” (1966-76), he finally returns home only ______that his beloved wife has amnesia and is unable to recognize him.A. Released ;to findB. Releasing ; foundC. Released ;findingD. Releasing ;to find33. Meanwhile, ________ Wal-Mart succeed at shrinking its environmental footprint and lowering prices for green products, both the planet and the company will profit．A. wouldB. couldC.shouldD. might34. So do take each subject seriously, and __________what you learn is of no practical use in real life, the learning skills you get will be something you will value forever.A. even ifB.so thatC.as ifD.in case35. —I’m sorry to tell you that you made a mistake in your test.—______________ I did it as told in class.A.Never mind .B. How can that be?C. No doubt.D. I can’t agree with you more!第二节完形填空（共20小题;每小题1.5分,满分30分）Albert was an excellent painter. He had a happy family. One night, his oldest son developed a severe stomachache. Thinking it was only some _____36_____ intestinal disorder, neither Albert nor his wife ______37____ the condition very seriously. But the disease was ____38______ acute diseaseErnie sat quietly and ____52_____ for a few moments. Then he said, "From my earliest memories第7页共16页◎第8页共16页us navigate, record our thoughts and memorable events, and even talk to us. So infatuated, we no longer merely "own" our gadgets -- we have relationships with them, according to clinical psychologist and life transition therapist Francine Lederer.“It’s a lot easier to have, right, a one-sided relationship with your computer, your phone, than it is with a live person. So that at the end of the day, you don’t need to worry about somebody being angry with you, you don’t need to worry about getting blamed for anything,” she said.Magical devicesAlthough having a thousand Facebook friends may be perceived as equivalent to having a thousand real, authentic friendships, Lederer said in reality it is not so.“It comes down to a lot of the internal stuff. How we feel about ourselves, our own sense of self-esteem, our self-worth, a lot of th ose things,” she said.But gadgets are magical. They fascinate us the same way we are intrigued by a magician’s trick, said psychology professor at the University of the South Pacific, Robert Epstein.“If you don’t know how they’re doing it, that’s very fa scinating and intriguing. But if they do it 10 times or 20 times or 100 times, it gets boring and you want something else. That’s why magicians do not repeat the same trick over and over again,” he said.Plugged in, isolatedEpstein, former editor-in-chief of Psychology Today magazine, said he is concerned that gadgets will take on a life of their own.“All we’re seeing so far is a little bit of the so-called wearable technology that you might wear on your wrist or in your glasses, but we’re moving very rap idly, whether the public knows it or not, toward real biological interfaces so that the gadgets will be built into us to some extent,” he said.Lederer said the danger is that our dependence on electronic gadgets is increasingly being perceived as normal.“I think our society in a way, and the media, often times normalizes the extent to which we use these gadgets and phones, but the reality is, it’s really not healthy for us,” she said.Scientists predict that gadgets with biological interfaces may be available within the next 20 years and, coupled with strong artificial intelligence, will be much smarter than today.56. What does the underlined phrases “be infatuated with” mean？A. be worried aboutB.be used toC. be attached toD. be popular with57. Why do people like to have relationships with gadgets?A.Because they are cleverer.B. Because they will not have burden with the gadgets.C.Because they have no feelings.D.Because they are easier to operate.58. What’s the similarity betwe en gadgets and magicians according to the passage?A. They both make people happy.B. We will be bored with them.C. They both cheat people.D. They both don’t use the same trick repeatedly.59. What is Lederer’s opinion?A. It’s abnormal for us to rely on electronic gadgets too much.B. Gadgets will take on a life of their own.C. It’s healthy for us to use model electronic gadgets.D. The gadgets will be built into us to some extent.BLike many developing countries, Cambodia’s mainly agricultural soci ety is changing fast, driven by urbanization and falling fertility rates. As young workers move to the cities, older people are staying back in the villages, where they have little support.After Sok Soeun’s husband died 12 years ago, she left her village for the Saravan pagoda in Phnom Penh.Twenty elderly people - most of them women - live here assisting the monks with Buddhist ceremonies.In return, attendees donate cash that the women spend on food and medicine.Although former civil servants and soldie rs get a pension, more than 80 percent of Cambodia’s 850,000 elderly did not have formal employment and so do not qualify.Like 73-year-old Soeun, many are widows and struggle to get by.B.two after the song went to number one on iTunes. Jessie also says she want ed第11页共16页◎第12页共16页Holding in third place is Tove Lo with “Habits (Stay High).” Where did that name come from? This Swedish artist’s real name is Ebba Tove Elsa Nillso n. “Lo” is Swedish for lynx - a species of wildcat that Tove says she fell in love with as a little girl.After eight weeks, Meghan Trainor falls off the Hot 100 pedestal: “All About That Bass” falls to second place. Last week, she and Miranda Lambert sang this song at the Country Music Association Awards in Nashville, and Meghan kicks off a headlining North American tour next February in Vancouver, Canada.Taylor Swift re-takes the Hot 100 title, with "Shake It Off" - giving her three total weeks at the top - but that’s only the beginning of her phenomenal week. Taylor’s 1989 album just opened at number one by selling 1.2 million domestic copies. That’s the largest sales week since The Eminem Show sold 1.3 million copies, way back in 2002.That’s a wrap for this week, but as you know, the chart i s always changing. Come back in seven days for an all-new lineup.64.What is TRUE according to the passage？A.There are many news songs this week.B.The article introduces from the first place song.C. “Do It Like A Dude” is sung by Jessie J, Ariana Grande, and Nicki Minaj.D. “Habits (Stay High)” is sung by a Swedish singer Ebba Tove Elsa Nillson.65. How long has the band Maroon 5 been around under this name?A.17.B.18C.20D.1366.We can infer from the passage?A.Taylor’s 1989 album created the l argest sales.B.The chart is updated every week.C. Meghan kicks off a headlining North American tour next February.D.“All About That Bass” has never taken the Hot 100 title.DChina will soon put its first domestically（国内地）developed electric aircraft into mass production, and designers expect a huge market at home and abroad."The RX1E is scheduled to receive its airworthiness（耐飞性，适航性，适航）certificate from the Civil Aviation Administration of China before the end of this year, with production expected to start next year," Yang Fengtian, an academic at the Chinese Academy of Engineering told China Daily on Thursday."This will be the first electric aircraft to be certified by our civil aviation authority. The success of the plane means China has become a technology leader in this filed," he added.An electric aircraft runs on electric motors, with electricity coming from fuel cells, solar cells, ultracapacitors, power beaming or batteries.Most of today's electric aircraft are experimental demonstration models. The first manned, electrically powered flight was made in 1973."We plan to reach an annual production of 100 such aircraft within three years, and the construction of a manufacturing plant that can make 100 RX1Es each year has begun in Shenyang," Yang said, adding that the plane, together with a set of batteries, will sell for nearly 1 million yuan ($163,000).The convenience of use, easy maintenance, low operating costs, high safety levels and eco-friendliness will bring the RX1E many buyers to serve a wide range of purposes, such as police patrols, flight training, entertainment and mapping surveys, he added.Yang said he expects that the Chinese market will need at least 1,000 RX1Es to meet the demand from general aviation businesses.With a maximum takeoff weight of 480 kg and a cruise speed of up to 160 kilometers per hour, the RX1E can fly 90 minutes based on a full charging of its batteries.It is able to carry loads for 230 km and fly at an altitude of nearly 3,000 meters.Yang said, "In addition to the domestic market,_______________________________________."67.In which section is this article most li kely to be found in a newspaper?A. EnvironmentB. TechnologyC. MilitaryD. Travelling68.We can learn from the passage EXCEPT_________.A. Both the production of RX1E and construction of plant are yet to start.pink back to many a cheek. This return to the heels has revolutionized the clothi Families now stay at home more to have fun.第15页共16页◎第16页共16页75.What is the main idea of this passage?A. This passage mainly shows the chain reactions of the rising gas priceB. This passage mainly discusses whether it's necessary to work on new fuelsC. This passage mainly warns people not to use too much gasolineD. Thi s passage mainly pictures what life will be like if gas runs out第II卷（非选择题共35分）第四部分写作（共两节,满分35分）第一节短文填词（共10小题;每小题1分,满分10分）.Global warming is ___76___（导致）more than 300,000 deaths and about $125 billion in economic losses each year, according to a report b___77___ the Global Humanitarian Forum, an organization ___78___ (领导) by Kofi Annan, the former United Nations secretary general.The report, to be released Friday, ____79__（分析）data and existing studies of health, disaster, population and economic trends. It f___80____ that human-influenced climate change was raising the global death rates from illnesses i____81____ malnutrition and heat-related health problems.But even before its r____82__, the report drew criticism from some experts on climate and risk,___83___ questioned its methods and conclusions. Along with the deaths, the report said that the lives of 325 million people, primarily in poor countries,were being ___84___(严重) affected by climate change. It projected that the number would d___85____ by 2030.第二节、书面表达(满分25分）每个人都受一些电影或书的影响，请写一篇短文介绍对你影响最大的一部电影或一本书。
贵阳市2015届高三上学期期末试卷物理试题及答案
贵阳市普通高中2015届高三年级第一学期期末监测考试试卷物理一、选择题（本大题共12小题，每小题4分，共48分。
其中1～8小题每题给出的四个选项中，只有一个选项符合题意，9～12小题有多个选项符合题意。
） 1．关于物理学家和他们的贡献，下列说法中正确的是( ) A 、奥斯特发现了电流的磁效应，并发现了电磁感应现象 B 、牛顿发现万有引力定律，并通过实验测出了引力常量C 、法拉第认为电荷间的相互作用力是通过电荷激发的电场而产生的D 、库仑通过扭秤实验得出了任意两个电荷间的库仑力122Q Q F k r = 【答案】C【考点】物理学史2．从同一地点同时开始沿同一直线运动的两个物体I 、II 的速度图像如图所示，在0～t 2时间内，下列说法中正确的是( )A 、I 、II 两个物体在t 1时刻相遇B 、I 、II 两个物体的平均速度大小都是122v v +C 、I 、II 两个物体所受的合外力都在不断减小D 、I 物体的加速度不断增大，II 物体的加速度不断减小 【答案】C【解析】图线与坐标轴围成图形的面积Ⅰ大于Ⅱ，所以I 、II 两个物体在t 1时刻不相遇，A 错误；图线与时间轴包围的面积表示对应时间内的位移大小，如果物体的速度从v 2均匀减小到v 1，或从v 1均匀增加到v 2，物体的位移就等于图中梯形的面积，平均速度就等于122v v +故Ⅰ的平均速度大于122v v +，Ⅱ的平均速度小于122v v +，故B 错误；【考点】对运动图像物理意义的理解3．2012年我国宣布北斗导航系统正式商业运行。
北斗导航系统又被称为“双星定位系统”，具有导航、定位等功能。
“北斗”系统中两颗工作卫星均绕地球做匀速圆周运动，轨道半径为r ，某时刻两颗工作卫星分别位于轨道上的A 、B 两位置（如图所示）。
若卫星均顺时针运行，地球表面处的重力加速度为g ，地球半径为R ，不计卫星间的相互作用力，则以下判断中正确的是( )A 、这两颗卫星的加速度大小相等，均为22R grB 、卫星1由位置A 运动至位置BC 、卫星1向后喷气就一定能追上卫星2D 、卫星1由位置A 运动到位置B 的过程中万有引力做正功 【答案】A若卫星1向后喷气，则其速度会增大，卫星1将做离心运动，所以卫星1不可能追上卫星2．故C 错误；卫星1由位置A 运动到位置B 的过程中，由于万有引力始终与速度垂直，故万有引力不做功，故D 错误．【考点】卫星运行参量的比较与运算4．如图所示，在水平向右做匀加速直线运动的平板车上有一小球，其质量为m 且与竖直挡板及斜面间均无摩擦，若车的加速度为a ，斜面的倾角为θ，斜面对小球的弹力为F 1和挡板对小球的弹力为F 2，则F 1、F 2的大小分别是( )A 、F 1=sin mgθB 、1tan F ma mg θ=+C 、F 2=cos mgθD 、2tan F ma mg θ=+ 【答案】D【解析】以小球为研究对象，分析受力情况，如图：设斜面的加速度大小为a ，根据牛顿第二定律得：【考点】牛顿第二定律；正交分解的应用5．如图所示，PQ为等量异种点电荷A、B连线的中垂线，C为中垂线上的一点，M、N分别为AC、BC的中点，若取无穷远处的电势为零，则下列判断正确的是( )A、M、N两点场强相同B、M、N两点电势相等C、负电荷由M点移到C处，电场力做正功D、负电荷由无穷远处移到N点时，电势能一定增加【答案】C【解析】根据等量异种电荷周围的电场线分布知，M、N两点的场强大小相等，方向不同，故A错误．沿着电场线方向电势逐渐降低，可知M、N两点电势不等．故B错误．负电荷由M点移到C处，电势增加，电势能减小，故电场力做正功，故C正确等量异种电荷连线的中垂线是等势线，将负电荷从无穷远处移到N点处，电场力做正功，电势能一定减小，故D错误．【考点】辨析电场强度、电势、电势差、电势能6．如图所示，上表面光滑的半圆柱体放在水平面上，小物块从靠近半圆柱体顶点O的A点，在外力F作用下沿圆弧缓慢下滑到B点，此过程中F始终沿圆弧的切线方向且半圆柱体保持静止状态。
2015年1月高三上学期期末统考【新课标1卷】语文试题
2015年1月高三上学期期末统考【新课标1卷】语文试题2015年1月高三上学期期末统考【新课标1卷】语文试题一松柏【学科网学易大联考】2015年1月高三上学期期末统考【新课标1卷】语文试题第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。
争论除夕是否放假莫忘春节“核心价值”苑广阔7日，中国人民大学调查中心就春节法定节假日安排以社会抽样调查和网上调查等方式公开征求意见。
该调查中心称，此次调查“受有关部门和单位委托”。
这是全国假日办“改编”成立国务院旅游工作部际联席会议制度后，首个关于放假的调查问卷。
调查问卷呈现“一边倒”的情况，约七成受访者支持春节长假从除夕开始放。
争论仍旧在持续，而按照有关专家的说法，解决争论的最好办法是增加一天假期，然后从除夕开始放假，这样大家就都没有意见了。
如果真能增加假期长度，那也就没有现在的争论了，问题在于至少从目前的情况来看，国家不会突然把春节假期从三天变为四天甚至是五天。
虽然目前的网络调查问卷显示，约有七成的受访者支持春节长假从除夕开始放，可毕竟还有三成左右的受访者支持春节从初一开始放，原因在于他们觉得自己的单位不会要求员工非等到除夕当天正常下班以后再回家过年，而是会放松要求，可能从中午甚至是上午就“自由活动”了。
这样一来，如果从除夕开始放假的话，他们等于是间接“损失”了半天或者是一天的假期。
但问题的关键在于，一方面不是所有的用人单位都会这么人性化，同意自己的员工可以在除夕当天提前下班回家；另一方面，这种依赖于单位领导或企业管理者的“提前放假”太不稳定，万一今年换了一个领导或管理者，可能就从去年的允许提前放假变成了不允许提前放假。
更何况，这种不是国家法定节假日的“私假”，显得总不是那么名正言顺。
比如某家政府机关除夕当天提前下班了，但是偏偏有市民前来办事却找不到人，怎么办？所以在我看来，在春节假期长度不变的情况下，国家还是统一从除夕开始放假好，笔者持这种观点的一个重要原因，就是春节这一传统节日的“核心价值”。
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2015年1月高三期末试卷一、选择题（本共17小题。
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．感染埃博拉病毒的患者在清除体内埃博拉病毒的过程中，不一定参与的是() A．记忆细胞B．吞噬细胞C．浆细胞D．效应T细胞2．下列操作不能达到实验预期的是（）A．运用双缩脲试剂的成分来鉴定甘蔗中的糖是否为还原性糖B．用纸层析法比较新叶和落叶中色素的种类C．用同位素标记和离心法探究DNA的复制方式D．采用样方法或标志重捕调查土壤动物的物种丰富度3．2014年诺贝尔生理学或医学奖授予三位发现大脑“内置GPS”的科学家。
大脑定位系统的一关键组成部分是“网格细胞”，这种神经细胞的兴奋能形成坐标系，可以精确定位和寻找路径。
下列相关叙述不正确的是（）A．“网格细胞”能释放信号分子，可能与其他细胞形成较多的突触B．看到酸梅流口水与大脑“内置GPS”有关C．不同个体内“内置GPS”的性能存在差异D．“内置GPS”上兴奋的传导都是双向的4．科学家往小球藻培养液中通入14CO2后，分别给予小球藻不同时间的光照，结果如下表。
．．．A．本实验利用小球藻研究的是光合作用的暗反应阶段B．每组照光后需将小球藻进行处理使酶失活，才能测定放射性物质分布C．CO2进入叶绿体后，最初形成的主要物质是12种磷酸化糖类D．实验结果说明光合作用产生的有机物还包括氨基酸、有机酸等5．肺炎双球菌转化实验中，由于S型菌中含控制荚膜多糖合成的基因的DNA片段进入R 型菌内并整合到R型菌的DNA分子上，使这种R型菌能合成荚膜多糖，结果R型菌转化为S型菌。
下列有关叙述正确的是()A．这种变异的原因是染色体畸变B．荚膜多糖是基因表达的产物C．一个环状DNA分子上与RNA聚合酶结合的启动部位有多个D．转录产生的mRNA须经过加工后才与核糖体结合进行翻译6．图1表示生态系统中各成分之间的联系，甲、乙、丙、丁为生态系统的组成成分。
A、B、C、D是丙中关系密切的四种生物，其生物量所占比例如图所示。
图2表示生态系统中，能量流经第二营养级的示意图，下列相关叙述，错误的是（）A．图中丁是生态系统的分解者B．图中存在的食物链(网)：C．图2中B表示用于自身生长发育和繁殖的能量D．生物D色彩绚丽，形状怪异，在市场非常名贵，这体现生物多样性的直接价值。
7．下列说法不正确．．．的是（）A．用石灰石或石灰乳进行燃煤烟气脱硫(除SO2)可获得副产品石膏B．金属的电化学防护措施有牺牲阳极的阴极保护法和外加电流的阴极保护法C．若在水果贮藏室中，放几块被KMnO4溶液浸透过的“砖块”，可延长水果保存时间D．常温时，某可逆反应的平衡常数越大则其反应速率越快8．下列有关实验的操作、原理和现象的叙述正确的是（）A．容量瓶、量筒和滴定管上都标有使用温度，量筒、容量瓶无“0”刻度，滴定管有“0”刻度；使用时滴定管水洗后还需润洗，但容量瓶水洗后不用润洗B．检验某溶液是否含有SO42－时，应取少量该溶液，依次加入BaCl2溶液和稀盐酸C．为观察Mg条在CO2中的燃烧，在一个底部铺有少量玻璃棉的集气瓶中收集满CO2气体，取一小段除去表面氧化膜的Mg条用坩埚夹持点燃后迅速投入上述集气瓶底部D．用干燥且洁净的玻璃棒蘸取NaClO溶液，滴到放在表面皿上的pH试纸上测pH值9．元素周期表的形式多种多样，右图是扇形元素周期表的一部分，对比中学常见元素周期表，分析其元素的填充规律，判断下列说法正确的是 （ ）A ．③元素形成的单质晶体均属于原子晶体B ．④元素的气态氢化物易液化，是因为其分子间存在氢键C ．②、⑦、⑧对应的简单离子半径依次减小D ．实验室可根据⑥、⑦单质分别与⑤单质反应的难易程度来比较两元素的非金属性强弱10．下列说法不正确．．．的是 （ ） A ．某芳香烃的分子式为C 10H 14，它不能使溴水褪色，但可使酸性KMnO 4溶液褪色，且分子结构中只有一个烷基，符合条件的烃有3种B ．某有机化合物完全燃烧生成等物质的量的CO 2和H 2O ，则该有机物的分子式一定C n H 2nC ．甲烷、甲醛、甲酸都不存在同分异构体，则甲醚(CH 3OCH 3)也无同分异构体D ．HOCH 2COOH 既可发生取代反应，也可发生加聚反应11．下图是CO2电催化还原为CH 4的工作原理示意图。
下列说法不正确．．．的是 （ ） A ．该过程是电能转化为化学能的过程B ．一段时间后，①池中n (KHCO 3)不变C ．一段时间后，②池中溶液的pH 一定下降D ．铜电极的电极反应式为：CO 2＋8H +＋8e －==CH 4＋2H 2O12．下列说法正确的是 （ ）A ．N A 代表阿伏加德罗常数，1molC 4H 10中含共价键数目为14N A 。
B ．某反应的△H =－88kJ·mol －1，则正反应活化能一定小于88kJ·mol －1。
C ．已知某温度下，K w =l×10－13，若将pH=8的NaOH 溶液与pH=5的H 2SO 4溶液混合，保持温度不变，欲使混合溶液pH=7，则NaOH 溶液与H 2SO 4溶液的体积比为11︰9D ．将浓度为0.1 mol·L －1 HF 溶液加水不断稀释过程中，电离度和K a (HF)保持不变，(F )(H )c c ++始终保持增大 13．某试液中只可能含有K ＋、NH 4＋、Fe 2＋、Al 3＋、Cl －、SO 42－、CO 32－、AlO 2－中的若干种离子，离子浓度均为0.1 mol·L－1，某同学进行了如下实验：下列说法正确的是（）A．无法确定原试液中是否含有Al3＋、Cl－B．滤液X中大量存在的阳离子有NH4＋、Fe2＋和Ba2＋C．无法确定沉淀C的成分D．原溶液中存在的离子为NH4＋、Fe2 2－＋、Cl－、SO414．如图所示是滑沙场地的一段，可视为倾角为30°的斜面，设参加活动的人和滑车总质量为m，滑沙人从距底端高为h处的顶端A沿滑道由静止开始匀加速下滑，加速度为0.4g，人和滑车可视为质点，则从顶端向下滑到底端B的过程中，下列说法正确的是（）A．人和滑车减少的重力势能全部转化为动能B．人和滑车获得的动能为0.4mghC．整个下滑过程中人和滑车减少的机械能为0.2mghD．人和滑车克服摩擦力做功为0.6mgh15．一铁球通过3段轻绳OA、OB、OC悬挂在天花板上的A点，轻绳OC拴接在轻质弹簧秤上。
第一次，保持结点O位置不变，某人拉着轻质弹簧秤从竖直位置缓慢转动到水平位置，如图1所示，弹簧秤的示数记为F1。
第二次，保持轻绳OC垂直于OA，缓慢释放轻绳，使轻绳OA转动到竖直位置，如图2所示，弹簧秤的示数记为F2。
则（）A．F1恒定不变，F2逐渐增大B．F1、F2均逐渐增大C．F1先减小后增大，F2逐渐减小D．F1逐渐增大，F2先减小后增大16．如图所示，一平行板电容器的两极板与一电压恒定的电源相连，极板水平放置，极板间距为d，在下极板上叠放一厚度为l的金属板，其上部空间有一带正电粒子P静止在电容器中，当把金属板从电容器中快速抽出后，粒子P 开始运动，重力加速度为g 。
则下列判断正确的是（ ）A ．上极板带正电B ．粒子开始向上运动C ．粒子运动的加速度大小为g d lD ．粒子运动的加速度大小为g ld d 17．如图所示，一圆环上均匀分布着负电荷，x 轴垂直于环面且过圆心O 。
下列关于x 轴上的电场强度和电势的说法中正确的是（ ）A ．O 点的电场强度不为零，电势最低B ．O 点的电场强度为零，电势最高C ．从O 点沿x 轴正方向，电场强度减小，电势降低D ．从O 点沿x 轴正方向，电场强度先增大后减小，电势一直升高二、选择题（本题共3小题，在每题给出的四个选项中，至少有一个选项是符合题目要求的。
全部选对得6分，选对但不全的得3分，有错选的得0分）18．如图甲所示，质量m =2 kg 的物体在水平面上向右做直线运动。
过a 点时给物体作用一个水平向左的恒力F 并开始计时，选水平向右为速度的正方向，通过速度传感器测出物体的瞬时速度，所得v －t 图象如图乙所示。
取重力加速度g =10 m/s 2。
则（ ）A ．10 s 末物体在a 点右侧2 m 处B ．物体减速时的加速度大于加速时的加速度C ．力F 的大小为3ND ．物体与水平面间的动摩擦因数μ=0.519．如图所示电路中，小灯泡规格相同，且均能发光，当逐一闭合开关，接入灯泡增多时，以下说法正确的是（ ）-QA．各灯变暗C．通过电源的电流变大D．电源的输出功率变大20．如图所示，倾角为α的光滑导轨上端接入一定值电阻，Ⅰ和Ⅱ是边长都为L的两正方形磁场区域，其区域内的磁场方向都垂直于导轨平面向上，区域Ⅰ中磁场的磁感强度为B1，区域Ⅱ中磁场随时间按B2=kt变化，一质量为m、电阻为r的金属杆ab穿过区域Ⅰ垂直地跨放在两导轨上，并恰能保存静止。
则（）A．通过金属杆的电流大小为B．通过金属杆的电流方向为从a到bC．定值电阻的阻值为D．定值电阻的阻值为第Ⅱ卷（非选择题，共180分）非选择题部分共12小题，180分21．（10分）如图所示是利用光电门探究“滑块加速度与外力关系”的实验装置。
实验中，将力传感器固定在滑块上，然后把绳的一端固定在传感器的挂钩上，用来测量绳对滑块的拉力，探究在滑块及传感器总质量不变时加速度跟它们所受拉力的关系。
本实验，需要直接测量的物理量有：滑块上的挡光板的宽度为d，滑块出发点到光电门位置距离为l，使滑块从起点由静止开始运动，光电计时器记录下滑块上挡光板通过光电门的时间为t∆。
（1）本实验中是否仍需要细沙和桶的总质量远小于滑块和传感器的总质量________（填“是”或“否”）；（2）滑块小车的通过光电门时的瞬时速度v=；（3）滑块小车的加速度a=；（4）换用不同钩码拉，测出多组不同外拉力F对应的t ，用图像法处理获得的数据，若以拉力F为纵坐标，则应以为横坐标，才能得出加速度与合外力的正比关系。
22.（10分）某同学通过实验描绘小灯泡的伏安特性曲线，可用的器材如下：电源（电动势为3 V，内阻为1 Ω）、电键、滑动变阻器（最大阻值为20 Ω）、电压表、电流表、小灯泡、导线若干。
（电压表和电流表均视为理想电表）（1）在图甲中把缺少的导线补全，连接成实验的电路（画在答题卷上）。
（2）开关闭合前变阻器的滑片应置于端（填“左”或“右”）（3）实验中得到了小灯泡的U－I图象如图乙所示，则可知小灯泡的电阻随电压增大而（选填“增大”“减小”或“不变”），当I=0.5A时，小灯泡的电阻R= Ω。
（4）若某次连接时，把AB间的导线误接在AC之间，合上电键，任意移动滑片发现都不能使小灯泡完全熄灭，则此时的电路中，小灯泡获得的最小功率是W。