河南省林州市第一中学分校(林虑中学)2017-2018学年上学期开学检测高二---化学试题
河南省林州一中2017-2018学年高二上学期开学考试英语试题扫描版含答案
林州一中高二开学检测英语试题第一部分阅读理解（共两节，满分40分）第一节（共15小题，毎小题2分，満分30分）A阅读下面的短文•从毎題所给的四个选项A.B.C、D中•选出最佳选项.English is fast becoming the language of science around the world, but what is its future among everyday speakers? One expert points out that the percentage（比率）of native English speakers is declinmg（降低）while the languages of other rapidly growing regions are being spoken by increasing numbers of people・ But English will continue to remain widespread and important.However> British language scholar David Graddol says English will probably drop in dominance（主导）by the middle of this century to rank after Chinese• about equally with Arabic* Hindi > and Urdu. * The number of people speaking English as a first language continues to rise*but it isn't rising nearly as fast as the numbers of many other languages around the world• simply because the main population group has been largely in the less developed countries where languages other than English have been spoken,w he says.In a recent article in the journal Science♦ Mr・ Graddol noted that three languages that are not near the top of the list of the most widely spoken now might be there soon. Th”。
河南省林州市第一中学分校(林虑中学)高二地理上学期开学检测试题(含解析)
林州一中高二分校开学检测地理试题一、选择题(40个，每题1.5分，共60分)2015年12月21日上午，十二届全国人大常委会第十八次会议审议《人口与计划生育法修正案（草案）》。
草案废除了独生子女政策，提倡一对夫妻生育两个子女。
结合左图和右图，回答下列各问题。
1. 我国计划生育政策调整的主要依据是( )A. 人口数量持续减少B. 人口老龄化加剧C. 劳动力严重不足D. 环境压力加大2. 右图中，能够反映我国2010年人口年龄构成的是( )A. ①点B. ②点C. ③点D. ④点【答案】1. B 2. A【解析】试题分析：1. 我国计划生育政策调整主要是针对中国人口老龄化问题日益突出的现象而提出的。
考点：本题组考查人口结构和人口问题（人口老龄化问题）。
与2014年相比，2015年上海市常住人口减少了10.41万人，外来常住人口更是减少了14.77万人，这是近20年首次出现的人口负增长。
调查发现减少的外来常住人口主要流向上海周边的中小城市。
上海市已制定“十三五”期间人口增长由数量型向质量型转变的策略。
据此完成下列各题。
3. 导致2015年上海市外来常住人口减少的主要原因是近年来上海市( )A. 产业转型升级B. 食品价格大增C. 环境质量下降D. 交通拥堵加重4. 上海市减少的外来常住人口多流向周边中小城市，主要原因是这些中小城市( )①服务设施齐全②承接了上海市转移的产业③适宜就业机会多④生态环境较好A. ①③B. ①④C. ②③D. ②④【答案】3. C 4. D【解析】........................4. 本题考查人口迁移及产业转移，考查获取和解读地理信息，调动和运用地理知识，基本技能的能力。
考查描述和阐释地理事物、地理基本原理与规律的能力。
考查论证和探讨地理问题的能力。
影响人口迁移最主要的因素是经济因素。
外来常住人口来上海的目的是务工，因此上海减少的外来常住人口多流向周边中小城市，主要原因是这些中小城市承接了上海市转移的产业和适宜就业机会多，D正确。
河南省安阳市林州一中2017-2018学年高二上学期开学物理试卷含解析
2017-2018学年河南省安阳市林州一中高二（上）开学物理试卷一、选择题1．质点由静止开始做直线运动,加速度与时间关系如图所示,t2=2t1，则（）A．质点一直沿正向运动B．质点在某个位置附近来回运动C．在0~t2时间段内，质点在t1时刻的速度最大D．在0～t2时间段内，质点在t2时刻的速度最大2．如图，在倾角为α的固定光滑斜面上，有一用绳子栓着的长木板，木板上站着一只猫．已知木板的质量是猫的质量的2 倍．当绳子突然断开时，猫立即沿着板向上跑,以保持其相对斜面的位置不变．则此时木板沿斜面下滑的加速度为( ）A．1。
5gsinα B．sinαC．gsinαD．2gsinα3．人在距地面高h、离靶面距离L处，将质量m的飞镖以速度v0水平投出，落在靶心正下方，如图所示．只改变h、L、m、v0四个量中的一个,可使飞镖投中靶心的是（）A．适当减小v0 B．适当提高h C．适当减小m D．适当减小L 4．如图所示的直角三角板紧贴在固定的刻度尺上方，现假使三角板沿刻度尺水平向右匀速运动的同时，一支铅笔从三角板直角边的最下端，由静止开始沿此边向上做匀加速直线运动，下列关于铅笔尖的运动及其留下的痕迹的判断中，正确的有（）A．笔尖留下的痕迹是一条倾斜的直线B．笔尖留下的痕迹是一条抛物线C．在运动过程中，笔尖运动的速度方向始终保持不变D．在运动过程中，笔尖运动的加速度方向始终保持不变5．冥王星绕太阳的公转轨道是个椭圆，公转周期为T0，其近日点到太阳的距离为a,远日点到太阳的距离为b，半短轴的长度为c,如图所示．若太阳的质量为M,万有引力常量为G，忽略其他行星对它的影响，则（)A．冥王星从A→B→C的过程中,机械能逐渐增大B．冥王星从A→B所用的时间等于C．冥王星从B→C→D的过程中，万有引力对它先做正功后做负功D．冥王星在B点的加速度为6．运动员从悬停在空中的直升机上跳伞，伞打开前可看做是自由落体运动,打开伞后减速下降，最后匀速下落．如果用h表示下落高度，t表示下落的时间，F表示人受到的合力，E表示人的机械能，E p 表示人的重力势能，v表示人下落的速度，在整个过程中，如果打开伞后空气阻力与速度平方成正比，则下列图象可能符合事实的是（）A．B． C． D．7．游乐场中的一种滑梯如图所示．小朋友从轨道顶端由静止开始下滑,沿水平轨道滑动了一段距离后停下来，则（)A．下滑过程中支持力对小朋友做功B．下滑过程中小朋友的重力势能增加C．整个运动过程中小朋友的机械能守恒D．在水平面滑动过程中摩擦力对小朋友做负功8．如图所示，光滑水平面上，质量为m的小球A和质量为m的小球B通过轻质弹簧相连并处于静止状态，弹簧处于自由伸长状态；质量为m的小球C以初速度v0沿AB连线向右匀速运动，并与小球A发生弹性正碰．在小球B的右侧某位置固定一块弹性挡板（图中未画出），当小球B与挡板发生正碰后立刻将挡板撤走，不计所有碰撞过程中的机械能损失,弹簧始终处于弹性限度以内,小球B与固定挡板的碰撞时间极短，碰后小球B的速度大小不变,但方向相反，则B与挡板碰后弹簧弹性势能的最大值E m可能是( ）A．mv02B． C．D．二、非选择题9．利用如图1实验装置探究重锤下落过程中重力势能与动能的转化问题．①图2为一条符合实验要求的纸带，O点为打点计时器打下的第一点．分别测出若干连续点A、B、C…与O点之间的距离h1、h2、h3…．已知打点计时器的打点周期为T，重锤质量为m，重力加速度为g，可得重锤下落到B点时的速度大小为．②取打下O点时重锤的重力势能为零,计算出该重锤下落不同高度h 时所对应的动能E k和重力势能E p．建立坐标系，横轴表示h，纵轴表示E k和E p，根据以上数据在图3中绘出图线Ⅰ和图线Ⅱ．已求得图线Ⅰ斜率的绝对值k1=2.94J/m,请计算图线Ⅱ的斜率k2= J/m（保留3位有效数字)．重锤和纸带在下落过程中所受平均阻力与重锤所受重力的比值为（用k1和k2表示）．10．如图所示，跳台滑雪运动员经过一段加速滑行后从O点水平飞出，从水平飞出时开始计时，经t=3.0s落到斜坡上的A点．已知O 点是斜坡的起点，斜坡与水平面的夹角θ=37°，运动员的质量m=50kg，不计空气阻力．取重力加速度g=10m/s2，sin37°=0。
河南省林州市第一中学分校(林虑中学)2017-2018学年高二上学期开学检测英语试题
林州一中高二分校开学检测英语试题选题人：第I卷（选择题）第一部分：听力（略）第二部分：阅读理解（40分）AI really love my job because I enjoy working with small children and like the challenges and awards from the job. I also think my work is important. There was a time when I thought I would never have that sort of career.I wasn’t an excellent student because I didn’t do much schoolwork. In my final term I started thinking what I might do and found I didn’t have much to offer. I just accepted that I wasn’t the type to have a career.I then found myself a job —looking after two little girls. It wasn’t too bad at first. But the problems began when I agreed to live in so that I would be there if my boss had to go out for business in the evening. We agreed that if I had to work extra hours one week, sh e’d give me time off the next. But unfortunately, it didn’t often work out. I was getting extremely tired and fed up, because I had too many late nights and early mornings with the children.One Sunday, I was in the park with the children, and met Megan who used to go to school with me. I told her about my situation. She suggested that I should do a course and get a qualification（资格证书）if I wanted to work with children. I didn’t think I would be accepted because I didn’t take many exams in school. She persuaded me to phone the local college and they were really helpful. My experience counted for a lot and I got on a part-time course. I had to leave my job with the family, and got work helping out at a kindergarten.Now I’ve got a full-time job there. I shall always be thankful to Megan. I wish I had known earlier that you could have a career, even if you aren’t top of the class at school.21．What is the author’s present job?A. Working part-time in a college.B. Taking care of children for a family.C. Helping children with their schoolwork.D. Looking after children at a kindergarten. 22．When staying with the two girls’ family, the author ________.A. was paid for extra workB. often worked long hoursC. got much help from her bossD. took a day off every other week23．Why did the author leave her first job?A. She found a full-time job.B. She was fed up with children.C. She decided to attend a part-time course.D. She needed a rest after working extra hours. 24．What has the author learned from her own experiences?A. Less successful students can still have a career.B. Qualifications are necessary for a career.C. Hard work makes an excellent student.D. One must choose the job one likes.BYou never played the video dance game? Now such games are used to help lose weight!Like many other teenage boys, Jones loves sports. But at 5 feet, 175 pounds, he found his weight in trouble. His doctor wanted him to lose 50 pounds so that he may be a good football game player by the end of the summer.Jones chose the popular Dance Revolution video game at home to increase his activity. He had lost about 10 pounds by changing his diet. Now, after two weeks’ playing the game, he has lost another 10!A health study is being done by an insurance company. The company hopes that the game will lead to better health and lower costs. “Obesity claims last year cost us $ 77 million. We have to cut those costs,” said a member of the insurance group. The company provides a game console (游戏主机), a dance mat andsoftware for the six-month, $ 60,000 study.The study is more than a commercial thing of an insurance company. It is widely supported by physical education and health professionals.In West Virginia, 43% of the nearly 6,000 children examined for heart disease risk were considered over-weighted; more than 25% were too fat. “We are in a crisis of childhood obesity not only in West Virginia but in America,” said a researcher.Researchers are now looking at the potential for improving effects by using the game. A teacher in West Virginia has been using the video games in her classes since last fall. She reported that the game does improve heart health as well as eye-hand coordination (协调能力), and her students take the video game as a great alternative to jumping rope or ball games.The US Education Department is putting the game in 20 schools to control childhood obesity. Well, are you going to try such to dance away your extra weight?25．The underlined part is trying to tell us _____.A. the study involves many insurance companiesB. the study is only an insurance company’s businessC. the study is less important than the insurance company’s moneyD. it’s not only the insurance company that is concerned about the study26．It can be inferred that _____.A. the government thinks highly of the dance gameB. in West Virginia, more than 25 % of the adults were too fatC. a teacher is a failure in using the video game in her classesD. the US Education Department isn’t interested in the game27．The most suitable title of the passage is _____.A. Dance Away Your WeightB. Play the Video Dance GameC. Solve the Problem of ObesityD. Cut the Cost of Obesity ClaimsCThe United States has always been a country of many cultures. Before Europeans came to North America, many groups of Native Americans lived here. Different Native American groups had different cultures. The first Europeans in the United States were from England and Holland, but immigrants came from all European countries. Many people also immigrated from Asia and Africa. Sadly, many Africans were brought to the United States as slaves. Many immigrants come from Latin America too. Today, the United States has people from more cultures than ever.In the 19th century, people spoke of the United States as a “melting pot.” People thought that all immigrates should forget their native cultures and languages and become English-speaking Americans. They felt that people should assimilate-join American culture. However, not everyone wanted to assimilate completely. Many people tried to keep parts of their cultures, such as foods, customs, and languages. However, their children often forgot their parents’ or grandparents’ language. But most Americans, even those whose families have been here a long time, can tell the countries their relatives came from. And of course, new immigrants take great pride in their curare and language.For all of these reasons, melting pot is no longer a good way to describe the United States. Instead, people now call the United States a “salad bowl.” They say salad bowl because in a salad, you can still see all of the individual parts (lettuce, tomato, and so on), but all the different parts mixed together and begin to take on the flavor of one another.28．Who are not mentioned as immigrants to America?A. EuropeansB. AsiansC. AustraliansD. Latin Americans29．The underlined word “assimilate” in paragraph 2 means .A. delightB. AcceptC. challengeD. reject30．Why is a “salad bowl” a better way to call the United States instead of a “melting pot”?A. Immigrants love to eat salads instead of hot potB. Immigrants take pride in their culture and languageC. Immigrants join American culture only partiallyD. Immigrants remain independent completely31．What would be the best title for the passage?A. America and ImmigrantsB. Different Groups, Different CulturesC. America – A Salad BowlD. America – A Great CountryDGenetically modified (转基因) foods have become a focus point of agriculture throughout the news today. This has an effect on many different aspects of the agriculture world. From the seed dealer, to the farmer that buys the seed, to the workers that the farmer sells to; all are affected by the new technologies that are involved in this part of production agriculture.Genetically modified foods have come under heavy fire lately. There are some countries that are against buying these types of foods. They are tested for safety by the best scientific experts in Europe, the US and the rest of the world. They are not for sale until they have gone through this complete safety process. Since they are a new product, and any slight problem with them could affect a whole country, these tests are very necessary.These safety tests are carried out because of the new rules that were made with the Novel Foods Regulation. Begun in May of 1997, the Novel Foods Regulation set up an EU-wide pre-market system for all novel foods. A novel food is described as one that has not been eaten by EU consumers widely in the past. By setting up this program the EU hopes to keep its consumers safe from any possible side effects of any new food products.There are a variety of ways in which genetic modification has helped food producers. They can improve the nutritional (营养的) value or the storage conditions of the food. Today there are only two genetically modified foods that have been allowed for use, these are GM soybean and GM maize.Despite any safety checks, many people are still cautious about eating genetically modified foods. By providing these people with the necessary information, we can allow them to make decisions about these foods.32．What do we know about the novel food?A. It’s very popular in EU.B. It’s bad for people’s health.C. It’s a new kind of food.D. Its story has been published. 33．Genetically foods are allowed to be sold if they are .A. tested for safetyB. of high qualityC. more nutritionalD. grown in Europe 34．From paragraph 2, we can learn that genetically modified foods .A. do no harm to peopleB. have caused some problemsC. are well received after being testedD. are criticized and attacked by many people 35．What’s the writer’s attitude towards genetically modified foods?A. We should warn people that they are too dangerous to be eaten.B. We should give people information about them so that they can decide whether to buy themC. We should encourage people to eat them because they are more nutritional.D. We should tell people that they are trying to fool the farmers.七选五The person behind you constantly kicks the back of your seat. Your talkative seatmate doesn't understand your need for sleep. And the aircraft's bathroom is a total mess. These situations can make even a short flight unbearable. Hopefully you don't cause these unpleasant experiences for others. _36．__Always recline (向后倾斜) your seat slowly. There's nothing worse than suddenly being hit in the knees by the seat in front of you. In addition, don't keep your seat reclined for the entire flight. Always keep it upright during mealtimes. And remember to put it in the upright position before going to the restroom or anytime you leave your seat.__37．__ Wait until the meal is done and all the food trays (盘子) have been collected. It's hard for passengers to stand up to let you pass when they still have their food trays. And when using the bathroom, always clean up after yourself—the next user will be grateful!Keep your body—and your possessions—to yourself as much as possible so as not to crowd your in-flight seatmate(s). Share the armrest, especially on a long flight. Also, be careful not to kick or push on the seat in front of you.While some people enjoy chatting with other passengers during a flight, not everyone does. Somepeople may want to nap, read or work. __38．__If you are traveling with someone and want to chat, keep your voices low. __39．__ People can still hear through your headphones if the volume is too high.When exiting the plane, if others are having trouble with their carryon luggage, help them if you can. If you can't help, wait patiently, and don't push past people to get off the airplane. On your flight, remember the golden rule：_40．__A．Treat others the way you want to be treated!B．If the conversation seems one-sided, you should notice it.C．Don't leave your carryon in the aircraft.D．Instead, you can set an example by following these common airplanene courtesies (礼貌)E．Avoid going to the bathroom during mealtimes.F．It is not polite to talk loudly in the aircraft.G．If using electronic gadgets(小装置), keep the volume down.三、完形填空（30分）An old man wanted to retire because of his poor health．The 41 was in deciding which son would take his place．As his children gathered to 42 his birthday, the father announced his43 ．The old man took out two boxes and said to his two sons．“Each of you take one．I want each of you to_44__ it with what you believe to be the most 45 thing for our successful business．46 your choices, I will decide who will take 47 the business,” father said．The next days the families and employees could sense the spirit of 48 between the boys.It was January 1st and the family 49 to celebrate again．“Please_50__with me what’s in your box!” father s aid．The first son said, “It’s outside on the back of truck．The box you gave me was much too 51 ” Father walked to the window and from that distance could see all．With a deep tone of 52 , he asked the other son，“What do you have to give?”The son53 his father the box．The old man looked inside and with great 54 looked up at his son .“It’s55 !” father said .“Are you telling me that you have found nothing of value in our business?”“On the contrary,” he said．“I could not place 56 I found most valuable in a box．How doesone measure the value of quality and honesty? What size box would 57 the loyalty（忠诚）of our employees and customers? How big of a room would I need for our workers who have _58_ from our generous pay and health plan? Finally, father, the most valuable possessions（财富）I 59 hold are the love of you and mother.”It was 60 what decision was made that day．There will come a time when each of us will be asked by our father to share what we value most．I hope your box is empty.41．A．praise B．challenge C．suggestion D．advice42．A．enjoy B．concern C．celebrate D．honor43．A．retirement B．experience C．money D．knowledge44．A．cover B．provide C．combine D．fill45．A．comfortable B．beautiful C．valuable D．adjustable46．A．Based on B．Stood for C．Protected from D．Dressed up47．A．up B．over C．down D．off48. A. teamwork B. achievement C．competition . D．communication49. A．forced B．refused C．adjusted D．gathered50．A．send B．publish C．share D．write51．A．big B．small C．light D．large52．A．happiness B．illness C．sadness D．loneliness53．A．posted B．packed C．wrapped D．handed54．A．delight B．shock C．mystery D．devotion55．A．empty B．wonderful C．terrible D．ugly56．A．where B．when C．how D．what57．A．sensed B．measured C．hold D．compared58．A．benefited B．suffered C．learned D．heard59．A．severely B．luckily C．sadly D．slightly60．A．obvious B．nervous C．anxious D．mysterious第II卷（非选择题）四、语法填空（15分）阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
河南省林州市第一中学分校(林虑中学)2017-2018学年高二上学期开学检测生物试题
林州一中2017-2018学年高二分校开学检测生物试题一、单选题1. 下列有关孟德尔遗传实验的叙述正确的是（）A. 杂种后代中只显现出显性性状的现象，叫做性状分离B. 隐性性状是指生物体不能显现出来的性状C. 测交是指F1与隐性纯合子杂交D. 杂合子的后代不能稳定遗传【答案】C【解析】试题分析：杂种后代中同时出现显性性状和隐性性状的现象，叫做性状分离，A项错误。
隐性性状是也可能会表现，B项错误。
测交是指F1与隐性纯合子杂交，C项正确。
杂合子的后代也有纯合子，能稳定遗传，D项错误。
考点：本题考查遗传的基本概念，意在考查考生能理解所学知识的要点，把握知识间的内在联系，形成知识的网络结构。
2. 已知A与a、B与b、C与c 3对基因自由组合，基因型分别为AaBbCc、AabbCc的两个体进行杂交。
下列关于杂交后代的推测，正确的是（）A. 表现型有8种，AaBbCc个体的比例为1/16B. 表现型有4种，aaBbcc个体的比例为1/16C. 表现型有8种，Aabbcc个体的比例为1/8D. 表现型有8种，aaBbCc个体的比例为1/16【答案】D【解析】试题解析：亲本基因型分别为AaBbCc、AabbCc，并且基因独立遗传，因此后代表现型种类=2×2×2=8种，AaBbCc个体的比例=1/2×1/2×1/2＝1/8，A错误；后代表现型应为8种，后代中aaBbcc个体的比例=1/4×1/2×1/4＝1/32，B错误；后代中Aabbcc个体的比例=1/2×1/2×1/4＝1/16，C错误；后代表现型应为8种，后代中aaBbCc个体的比例=1/4×1/2×1/2＝1/16，D正确。
考点：本题考查自由组合定律的实质和运用的相关知识，意在考查考生能理解所学知识的要点，把握知识间的内在联系，能用文字和数学方式等多种表达形式准确地描述生物学方面的内容以及数据处理能力。
河南省林州市第一中学高二上学期入学考试数学试题含答案
林州一中2018级高二开学检测数学试题第I 卷（选择题)一、单选题(60分)1．已知2{20}A x x x =--<{}ln(1)B x y x ==-,R A C B ⋂=( )A ．(]1,2-B ．[]1,2-C ．[)1,2D ．[]1,2-2．已知奇函数()f x 是[0)+∞，上的减函数，2(log 3)a f =-，2(log 3)b f =，3(log 2)c f =，则 A ．a b c <<B ．a c b <<C ．c b a <<D ．b c a <<3．函数()f x 是奇函数，且在∞（0，+）内是增函数，(3)0f -=，则不等式()0xf x <的解集为（ ） A ．∞U （-3,0）（3，+） B ．∞U （-，-3）（0,3） C ．∞∞U （-，-3）（3，+）D ．U （-3,0）（0,3）4．已知ABC △的三个顶点在以O 为球心的球面上，且2AB =，4AC =，BC =三棱锥O ABC -的体积为43，则球O 的表面积为（ ）A ．22πB ．743πC ．24πD ．36π5．湖北省2019年新高考方案公布，实行“312++”模式，即“3”是指语文、数学、外语必考，“1”是指物理、历史两科中选考一门，“2”是指生物、化学、地理、政治四科中选考两门，在所有选科组合中某学生选择考历史和化学的概率为（ ）A ．12B ．18C ．14D ．166．在区间[1,1]-上随机取一个数k ，使直线(3)y k x =+与圆221x y +=相交的概率为（ ）A ．12 B ．13 C ．4 D ．37．已知1,a b ==r r ()()3a b a b +⊥+r r r r ，则向量a r 与b r的夹角为（ ）A ．60°B ．120°C ．30°D ．150°8．已知两个向量())1a cos sin b θθ==-r r，，则2a b -r r的最大值是（ ）A ．2B ．C ．4D ．9．已知等差数列{}n a 的前n 项和为n S ，4567835a a a a a ++++=，则11S =（ ）A ．77B ．70C ．154D ．14010．在ABC ∆中，角A ，B ，C 的对边分别是a ，b ，c ，且cos (2)cos a B c b A =-，则角A 的大小为（ ）A ．6π B ．4π C ．3π D ．2π 11．三角形ABC 的三边分别是,,a b c ，若4c =，3C π∠=，且sin sin()2sin 2C B A A +-=，则有如下四个结论：①2a b = ②ABC ∆的面积为833③ABC ∆的周长为443+ ④ABC ∆外接圆半径43R =这四个结论中一定成立的个数是（ ） A ．1个B ．2个C ．3个D ．4个12．已知函数122,0()2,()()2,0x acosx x f x g x a R x a x -+≥⎧==∈⎨+<⎩，若对任意11)[x ∈+∞，，总存在2x R ∈，使12()()f x g x =，则实数a 的取值范围是（ ）A ．1,2⎛⎫-∞ ⎪⎝⎭B ．2,3⎛⎫+∞⎪⎝⎭C ．1,[1,2]2⎛⎫-∞ ⎪⎝⎭U D ．371,,224⎛⎤⎡⎤ ⎥⎢⎥⎝⎦⎣⎦U第II 卷（非选择题)二、填空题（20分）13．如图，PA ⊥平面ABC ，90ACB ∠=︒且PA AC =，2AC BC =，则异面直线PB 与AC 所成的角的正切值等于_________.14．已知直线1:(3)(4)10l k x k y -+-+=与直线2:2(3)230l k x y --+=.若12l l ⊥则k 的值是___.15．已知tan 4πα⎛⎫+= ⎪⎝⎭-2，则3sin cos sin cos αααα-=+________． 16．设等差数列的前项和为，若，，则的值为_______．三、解答题17．记为等差数列的前项和，已知，．（Ⅰ）求的通项公式；（Ⅱ）求，并求的最小值．[]上的最大值和最小值。
河南省林州市第一中学分校(林虑中学)2017_2018学年高二语文上学期开学检测试题(含解析)
林州一中高二分校开学检测语文试题第Ⅰ卷阅读题一、现代文阅读（一）论述类文本阅读阅读下面的文字，完成下面小题。
微文学：传统文学与现代技术的新融合进入21世纪以来，随着媒介、数码技术的飞速发展，以短信、微博、微信为主要载体的传播手段逐渐普及，衍生出了微文学这种崭新的文学样式。
从范围上它包括短信文学、微博文学、微电影文学、微图文文学等众多文学子类，从内容上它承继了传统文学道义担当、弘扬真善美的精神品格，又呈现出了快捷、互动、多样的技术特质，更容易为广大受众所接受。
基于技术上对“微”的要求，微文学在内容表达上也随之转变适应，改变了普通文学作品文字繁复、结构宏大的写作风格，产生出了迥异于传统的文学特质。
微文学作品一般语言都高度凝结精练、情感表达直率自然，较少用华丽的辞藻。
从内容类别上看集中在哲理类、社会类等愉情喻理的主题范围，这些主题贴合大众的情绪需求，容易用简练的语句取得较好的效果，类似于佛教中用“顿悟”的方式以一个微小的细节瞬间引发受众的共鸣。
因此微文学特别强调“炼字”，强调言简而意浓。
这种对语言提炼的重视在很大程度上克服了当代一些文学作品尤其是网络文学作品等的码字、注水现象。
微文学的“微”是一把双刃剑，体量的“微”很容易造成思考的浅薄和言说的局限，不能很好地表达深刻的思想。
与此同时，技术上的“微”却又有效地克服了这种“浅言说”的缺陷。
作为微文学载体出现的微博、微信等传播方式的便捷、多样，以及数码技术日新月异的变化，使微文学可以通过多样化、炫目化的技术方式实现内容的“深表达”。
微文学作品中大量的内容是作者即时发布的、亲身感知的真实事件，在以往许多难以被捕捉、只能通过文学作品假想的现实故事也能够即时地呈现，而这种真实的现实一旦呈现，在一定意义上就比刻意创作的小说更深刻、更震撼，从而具备了深层次的审美体验。
在传统的文学作品中，读者只能进行阅读、评价，很难有效地参与创作、修改。
微文学能很好地克服这种缺点，微博、微信本身群体化或部落化的特征，使其对微文学作品评论、转发十分便利，读者与作者联系沟通的交互性强。
【政治】河南省林州市第一中学分校(林虑中学)2017-2018学年高二上学期开学检测试题(解析版)
河南省林州市第一中学分校（林虑中学）2017-2018学年高二上学期开学检测试题一、选择题1. 假设人民币对美元贬值一段时间，这种情况产生的后果是A. 以美元计价的大宗商品价格上涨B. 世界新兴经济体将增加美元储备C. 我国产品在美国市场竞争力上升D. 我国经销商将增加美国商品进口【答案】C【解析】本题考查外汇和汇率。
根据题意可知人民币对美元贬值一段时间，意味着美元的汇率升高，人民币的汇率跌落，美元升值，有利于出口，不利于进口．A 表述错误，人民币对美元贬值，以美元计价的大宗商品价格下降；B表述错误，世界新兴经济体将减少美元储备；C符合题意，人民币对美元贬值，有利于出口，因此，我国产品在美国市场竞争力上升；D表述错误，人民币对美元贬值，不利于进口，因此，我国经销商将减少美国商品进口；故本题选C。
2. 前不久，宁波一餐厅推出机器人送餐服务，既减少了服务人员和开支，新奇的创意又吸引了许多市民前来体验。
可见①该餐厅机器人送餐服务能创造更大的价值②新奇的创意有利于更好地实现商品的价值③机器换人有利于提高劳动生产率④消费需求有助于创造生产的动力A. ①③B. ②③C. ①④D. ②④【答案】B【解析】试题分析：价值是凝结在商品中的无差别的人类劳动。
生产商品的劳动是抽象劳动和具体劳动的统一,抽象劳动是价值的唯一源泉。
机器人是具体劳动过程中使用的劳动工具，本身不能创造价值。
故①选项错误，排除。
②③选项符合题意，如下。
④选项的表述强调的是消费的作用，与题意无关。
3. 有调查称，消费者不是爱买便宜的商品，而是喜欢占便宜。
这给经营者的启示是①要给市场提供价格低廉的商品②要给市场提供性价比高的产品③要重视研究消费者的消费心理④要形成自己的竞争优势A. ①②B. ②③C. ①③D. ①④【答案】B【解析】试题解析：针对题目中的现象，经营者应研究消费者的消费心理，提供性价比高的产品，故选B。
①④与题意不符。
4. 移动4G技术使手机上网的速度越来越快，视频通话、互联网游戏、高清电影在线观看等将成为智能手机的主流应用，用户在乘坐公交、购物就餐等场合也将实现刷手机付费。
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林州一中高二分校开学检测化学试题选题人：一、选择题（每题3 分，共48 分）1、下列物质的水溶液能导电，但属于非电解质的是( )A．CH3COOH B．Cl2C．Na2CO3 D．CO22、砹是原子序数最大的卤族元素，推测砹或砹的化合物最不可能具有的性质是（）①砹化氢很稳定②砹单质与水反应，使砹全部转化成氢砹酸和次砹酸③砹是黑色固体④砹化银难溶于水⑤砹易溶于某些有机溶剂．A．只有①②B．只有①②⑤C．只有③⑤D．只有②⑤3、关于碱金属的性质叙述错误的是（）A．还原性随原子电子层数的增加而增加B．在空气中燃烧的生成物都是过氧化物C．与水反应的剧烈程度随核电荷数增加而增强D．最高价氧化物对应水化物的碱性随核电荷数增加而增强4、下列有关化学用语使用不正确的是（）A．苯的分子式：B．羟基的电子式：C．甲烷分子的比例模型：D．原子核内有10个中子的氧原子： O5、下列关于烷烃的说法中，正确的是（）A．通式为C n H2n B．可以使酸性高锰酸钾溶液褪色C．在光照下可与氯气发生加成反应D．随分子中碳原子数的增加，烷烃的熔沸点升高6、关于铝热反应，下列说法不正确的是（）A．该反应是吸热反应B．铝热剂是混合物C．可以利用该反应焊接铁轨D．该反应需在高温条件下进行7、右图是关于反应A2(g)+3B2(g) 2C(g)(正反应为放热反应)的平衡移动图形，影响平衡移动的原因是（）A．升高温度，同时加压B．降低温度，同时减压C．增大反应物浓度，同时使用适宜的催化剂D．增大反应物浓度，同时减小生成物浓度8、对于可逆反应：2A（g）＋B（g）2C（g）△H＜0，下列各图中正确的是( )9、铝与稀硝酸发生反应的化学方程式为；Al+HNO3=Al(NO3)3+NO↑+H2O，若配平方程式后，HNO3的计量系数应该是( )A ．2B ．4C .6 D．810、可逆反应N 2＋3H2 2NH3的正、逆反应速率可用各反应物或生成物浓度的变化来表示。
下列各关系中能说明反应已达到平衡状态的是( )A.3v正（N2）＝v正（H2）B.v正（N2）＝v逆（NH3）C.2v正（H2）＝3v逆（NH3）D.v正（N2）＝3v逆（H2）11、将等物质的量的A、B混合于2L的密闭容器中，发生下列反应：3A（g）+B（g）⇌xC（g）+2D（g），经2min后测得D的浓度为0.5mol/L，c（A）：c （B）=3：5，以C表示的平均速率v（C）=0.25mol•L﹣1•min﹣1，下列说法正确的是（）A．该反应方程式中，x=1 B．2min时，A的转化率为50%C．2min时，A的物质的量为0.75mol D．反应速率v（B）=0.25 mol•L﹣1•min﹣112、可逆反应：2NO22NO＋O2在体积固定的密闭容器中进行，达到平衡状态的标志是( )①单位时间内生成n mol O2的同时生成2n mol NO2②单位时间内生成nmol O2的同时生成2n mol NO ③用NO2，NO，O2表示的反应速率的比为2：2：1的状态④混合气体的颜色不再改变的状态⑤混合气体的密度不再改变的状态⑥混合气体的压强不再改变的状态⑦混合气体的平均相对分子质量不再改变的状态A．①④⑥⑦B．②③⑤⑦ C．①③④⑤⑤ D．全部13、下列反应不属于可逆反应的是( )。
A.SO2溶于水和H2SO3分解B.H2和I2化合生成HI和HI分解C.SO2跟O2化合生成SO3和SO3分解D.H2O电解生成H2和H2燃烧生成H2O14、关于元素周期表和元素周期律，下列说法正确的是（）A.若某元素的原子最外层电子数为2，则一定是第ⅡA族元素B.在周期表中，元素从上到下金属性逐渐增强，从左到右非金属性逐渐增强[来源:学#科#C.同主族含氧酸的酸性随着核电荷数的增加而减弱D.最高价氧化物对应水化物酸性最强的是HClO4，所以Cl非金属性最强15、分析下列反应在任何温度下均能自发进行的是( )A．2N2(g)＋O2(g)===2N2O(g) ΔH＝＋163 kJ·mol－1B．Ag(s)＋1/2Cl2(g)===AgCl(s) ΔH＝－127 kJ·mol－1C．HgO(s)===Hg(l)＋1/2O2(g) ΔH＝＋91 kJ·mol－1D．H2O2(l)=== 1/2O2(g)＋H2O(l) ΔH＝－98 kJ·mol－116、一定条件下，下列反应不能自发进行的是( )A．2O3(g)＝3O2(g) ΔH＜0 B．(NH4)2CO3(s)＝NH4HCO3(s) + NH3(g) ΔH＞0 C．2CO(g)＝2C(s) + O2(g) ΔH＞0 D．3Fe(s)+2O2(g)＝Fe3O4(s) ΔH＜0二、填空题（每空2 分，共52分）17、（每空2 分，共14分）向某体积固定的密闭容器中加入0.3 mol A、0.1 mol C和一定量（未知）的B三种气体，一定条件下发生反应，各物质浓度随时间变化如图所示。
已知在反应过程中混合气体的平均相对分子质量没有变化。
请回答：（1）密闭容器的体积是_____L；（2）若t1=15时，则t0~t1 s内以C物质浓度变化表示的反应速率v(C)=_______；[来源:Z（3）写出反应的化学方程式：________________________；（4）t1 s时，A的转化率为__________，此时v(A)正______v(B)逆（选填“>”、“<”或“=”）；（5）B的起始的物质的量是_____；（6）平衡时体系内的压强为初始状态的___________倍。
18、（每空2 分，共14分）（I）工业上制取冰晶石(Na3AlF6)的化学方程式如下：2Al(OH)3+ 12HF+ 3Na2CO3=2Na3AlF6+ 3CO2↑+ 9H2O根据题意完成下列填空：（1）在上述反应的反应物和生成物中，属于非极性分子的电子式，属于弱酸的电离方程式。
（2）反应物中有两种元素在元素周期表中位置相邻，下列能判断它们的金属性或非金属性强弱的是（选填编号）。
a．气态氢化物的稳定性b．最高价氧化物对应水化物的酸性c．单质与氢气反应的难易d．单质与同浓度酸发生反应的快慢（Ⅱ）X、Y、Z、W为原子序数依次增大的四种短周期主族元素，X的最外层电子数比内层电子数多1，Y是短周期元素中金属性最强的元素，Z的最外层电子数与次外层电子数之比为3：4。
（3）Z元素在周期表中的位置；W的最高价氧化物对应水化物的化学式为（4）隔绝空气加热，Y单质可与X的氧化物反应制备X单质，该反应的化学方程式为（5）0.2mol 化合物Z2W2与水反应转移电子的物质的量为0.3mol ,生成一种能使品红褪色的气体，该反应过程中只有一种元素化合价发生变化，该反应的化学方程式19、（每空2 分，共12分）甲醇是一种低碳能源，在全球能源危机和环境污染的背景下具有良好的发展前景。
在催化剂作用下可用H2和CO合成甲醇，反应的化学方程式为2H2(g)+CO(g)催化剂CH3OH(g)，三种物质的物质的量浓度随时间变化的关系如图所示。
回答下列问题：(1)代表H2浓度变化的曲线为_______(填“a”、“b”或“c”)。
(2)提出一条可以加快反应速率的措施：______________________________。
(3)0〜4 min内，CH3OH的平均反应速率为_________________。
(4)我国某高校化学研究所在甲醇燃料电池技术方面获得新突破，组装出了自呼吸电池及主动式电堆。
甲醇燃料电池的工作原理如图所示。
①该电池工作时，c口通入的物质为_____________，该电极为____(填“正极”或“负极”)。
②该电池工作一段时间后,，当6.4 g甲醇完全反应生成CO2时，消耗的氧气的体积为_____L(标准状况下)。
20、（每空2 分，共12分）用①H2O ②H2O2③Ba(OH)2 ④Na2O2⑤MgCl2⑥Ar ⑦CO2⑧CaF2⑨NH4Cl ⑩CaO2Ca(ClO)2N2H4等物质填空。
(1)只存在离子键的是________(2) 由离子键和极性键构成的是_________(3)由离子键和非极性键构成的是_________(4) 由极性键和非极性键构成的是_________(5)写出下列物质的电子式：Na2S2：_________(NH4)2S:______林州一中高二分校开学检测化学答案1、【答案】D【解析】试题解析：A ．CH 3COOH 水溶液能导电，属于电解质；A 错误；B ．Cl 2水溶液为盐酸和次氯酸混合物，能导电，但是Cl 2为单质，不是非电解质；B 错误；C ．Na 2CO 3水溶液能导电，但是Na 2CO 3属于电解质；D ．CO 2水溶液中含有碳酸电离出的离子，所以能导电，但是CO 2属于非电解质；2、A3、B4、A5、D6、A7、【答案】D【解析】试题分析：此反应是放热反应，升高温度，平衡向逆反应方向进行，故错误；B 、降低温度、减压，化学反应速率降低，故错误；C 、增大反应物浓度，正反应方向速率增大，使用催化剂，化学反应速率增大，故错误；D 、增大反应物浓度，正反应方向速率增大，减小生成物的浓度，逆反应方向速率降低，故正确。
8、A 9、B 10、C 11、B 12、A 13、D 14、B15、【答案】D【解析】试题分析：根据ΔG ＝ΔH －T ΔS 可知，当ΔG ＜0时，即ΔH ＜T ΔS 时，反应能自发进行，ΔG ＞0时，即ΔH ＞T ΔS 时，反应不能自发进行。
A ．反应是气体体积减小的吸热反应，在低温下非自发进行，在高温下可自发进行，错误；B ．反应是气体体积减小的放热反应，在低温下自发进行，在高温下非自发进行，错误；C ．反应是气体体积扩大的吸热反应，在低温下非自发进行，在高温下可自发进行，错误；D ．反应是气体体积扩大的放热反应，在任何温度下都可自发进行，正确。
故选D 。
16、C17、（1）2 （2）0.004 mol ·L -1·s -1（3）3A B+2C （4）60% > （5）0.04 mol（6）1 （1）密闭容器的体积是2 L ；（2）若t 1=15时，则t 0~t 1 s 内以C 物质浓度变化表示的反应速率v (C)= ==0.004 mol ·L -1·s -1；（3）反应的化学方程式为3AB+2C ； （4）t 1 s 时，A 的转化率为 15.009.0×100%=60%，此时正反应速率与逆反应速率相等，其数值之比等于其化学计量数之比，所以v (A)正=3v (B)逆，v (A)正>v (B)逆；（5）由A 和C 的变化量之比为(0.15-0.06):(0.11-0.05)=0.09:0.06=3:2，可以推出B 的变化量为0.03mol/L,容器的体积为2L ，所以B 起始的物质的量是(0.05-0.03) ×2mol=0.04mol ；（6）根据阿伏加德罗定律可知，在同温同体积条件下，气体的压强之比等于其物质的量之比，也等于其分子数之比。