2015年第二学期会宁二中期中考试
会宁县第二中学2015-2016学年高二下学期期中考试数学试题及答案试题(理)
2015——2016第二学期期中高二数学试卷第Ⅰ卷（选择题共60分）一．选择题（下列各小题只有一个正确选项，每小题5分，共60分）1.复数z ＝－3+i2+i 的共轭复数是 ( )A .2+iB .2－iC .－1+iD .－1－i2.函数f (x )在x = x 0处导数存在，若()000p f x q :x x '==：，是f (x )的极值点，则( ) A .p 是q 的充分必要条件 B .p 是q 的充分非必要条件 C .p 是q 的必要非充分条件 D .p 是q 的既非充分也也非必要条件3．“三角函数是周期函数，y ＝tan x ，x ∈⎝⎛⎭⎫－π2，π2是三角函数，所以y ＝tan x ，x ∈⎝⎛⎭⎫－π2，π2 是周期函数．”在以上演绎推理中，下列说法正确的是( ) A ．推理完全正确 B ．大前提不正确 C ．小前提不正确 D ．推理形式不正确4.用反证法证明命题“220,0(a b a b a b +=∈R 若则、全为、)”,其反设正确的是（ ） A .0a b 、至少有一个不为 B . 0a b 、至少有一个为 C . 0a b 、全不为 D . 0a b 、中只有一个为5．观察(x 2)′＝2x ，(x 4)′＝4x 3，(cos x )′＝－sin x ，若定义在R 上的函数f (x )满足f (－x )＝f (x )，f´(x )为f (x )的导函数，则f´(-x )＝( )A ．f (x )B ．－f (x )C ．f´(x )D ．－f´(x )6．用数学归纳法证明不等式1＋12＋13＋…＋12n －1<n (n ∈N *且n >1)时，第一步应验证不等式( )A ．1＋12<2B ．1＋12＋13<2C ．1＋12＋13<3D ．1＋12＋13＋14<37．当a>b ，且f(x)>0，则⎠⎛ab f(x)dx 的值( )A ．一定是正的B ．一定是负的C ．当a>b>0时是正的，当0>a>b 时是负的D ．正、负都有可能8．已知实数a ，b ，c ，d 成等比数列，且曲线y ＝3x －x 3的极大值点坐标为(b ，c )，则ad 等于( )A ．2B ．1C ．－1D ．－29. 已知函数f (x )＝f ′⎝⎛⎭⎫π4cos x ＋sin x ，则f ⎝⎛⎭⎫π4的值为( ) A . π2 B . 1 C . π4 D . 010．由抛物线y ＝x 2－x ，直线x ＝－1及x 轴围成的图形的面积为( ) A . 23B ．1C . 43D . 5311．已知f (x )＝sin(x ＋1)π3－3cos(x ＋1)π3，则f (1)＋f (2)＋f (3)＋…＋f (2011)＝( )A ．2 3 B. 3 C ．－ 3 D ．012．设直线x ＝t 与函数f (x )＝x 2，g (x )＝ln x 的图象分别交于M ，N ，则当|MN |最小时t 的值为( ) A ．1B. 12C. 52D.22第Ⅱ卷（非选择题共90分）二．填空题（每题5分，共20分,把答案填在答题纸的横线上.） 13.复数1＋i 1－i ＋i 2 012对应的点位于复平面内的第 象限．14．=⎰xdx 202sin 2π15．已知等差数列{a n }中，有a 11＋a 12＋…＋a 2010＝a 1＋a 2＋…＋a 3030，则在等比数列{b n }中，会有类似的结论 16．用数学归纳法证明122＋132＋…＋1n ＋2>12－1n ＋2，假设n ＝k 时，不等式成立，则当n ＝k ＋1时，应推证的目标不等式是三.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.（本小题10分）已知复数z 满足|z |＝2，z 2的虚部是2，(1)求复数z ；(2)设z ，z 2，z －z 2在复平面内的对应点分别为A ，B ，C ，求△ABC 的面积．18．(本小题12分) 在曲线y ＝x 2(x ≥0)上某一点A 处作一切线使之与曲线以及x 轴所围成的图形的面积为112，试求：(1)切点A的坐标；(2)过切点A的切线方程．19．(本小题12分)已知函数f(x)＝ax3＋bx2的图象经过点M(1,4)，曲线在点M处的切线恰好与直线x＋9y＝0垂直．(1)求实数a，b的值；(2)若函数f(x)在区间上单调递增，求m的取值范围20．(本小题12分)如下图，在直三棱柱ABC—A1B1C1中，E，F分别是A1B，A1C的中点，点D在B1C1上，A1D⊥B1C.求证：(1)EF∥平面ABC；(2)平面A1FD⊥平面BB1C1C.21.（本小题12分）已知数列{a n }的首项a 1＝23，a n ＋1＝2a na n ＋1，n ＝1,2，….(1)求数列{a n }的通项公式；(2)求数列⎩⎨⎧⎭⎬⎫n a n 的前n 项和S n .22.（本小题12分）设函数f (x )= e x －ax －2 (1)求f (x )的单调区间(2)若a =1，k 为整数，且当x >0时，(x －k ) f´(x )+x +1>0，求k 的最大值参考答案二、填空 13.第一象限．14. 2π15. 等差数列与等比数列的对应关系有：等差数列中的加法对应等比数列中的乘法， 等差数列中除法对应等比数列中的开方，故此我们可以类比得到结论=16. 假设n =k 时，不等式成立，则当n =k +1时，应推证的目标不等式是()2221111123221k k +++>-++17.(1)z =1+i 或z =-1-i; (2)△ABC 的面积为1.18. 解：如图所示，设切点A (x 0,y 0)，由y ′＝2x ，得过点A 的切线方程为 y -y 0=2x 0(x -x 0)即y =2x 0x -x 02.……..3分令y ＝0，得x ＝02x ，即C 0,02x ⎛⎫ ⎪⎝⎭. 设由曲线和过A 点的切线及x 轴所围成图形的面积为S ，S 曲边△AOB ＝x 2dx ＝x 3＝x 03，S △ABC ＝|BC |·|AB |＝·x 02＝x 03.所以S ＝x 03－x 03＝x 03＝.所以x 0＝1，从而切点A (1,1)，切线方程为y ＝2x －1.19. 解：（1）∵f (x )=ax 3+bx 2的图象经过点M （1,4）,∴a +b =4.①f ′(x )=3ax 2+2bx ,则f ′(1)=3a +2b , 由条件f ′(1)·(-19)=-1,即3a +2b =9,② 由①②式解得a =1,b =3. （2）f (x )=x 3+3x 2,f ′(x )=3x 2+6x , 令f ′(x )=3x 2+6x ≥0得x ≥0或x ≤-2,经检验知函数f (x )在区间［m ,m +1］上单调递增,则［m ,m +1］(-∞,-2］∪［0,+∞)，∴m ≥0或m +1≤-2,即m ≥0或m ≤-3为所求m 的取值范围20.证明：（1）因为E,F 分别是A 1B,A 1C 的中点，所以EF //BC ，又EF ABC ⊄面，BC ABC ⊄面，所以EF ABC ⊄面；（2）因为直三棱柱ABC -A 1B 1C 1，所以1111BB A B C ⊄面，11BB A D ⊥，又11A DB C ⊥，所以111A D BBC C ⊥面，又11 AD A FD ⊥面，所以平面111 A FD BB C C ⊥平面。
甘肃省会宁县第二中学2015-2016学年高二英语下学期期中试题
会宁二中2015-2016学年度第二学期期高二英语试卷时间:100分钟满分120分-第工卷选择题阅读理解(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。
AFor their nick-of-time acts, Toby, a 2-year-old dog, and Winnie, a cute cat, were named Dog and Cat of the Year by the American Society for the Prevention of Cruelty to Animals.As Amy Paul choked(哽住) on a piece of apple at her home, her dog jumped up, landing hard on her chest and forcing the piece in her throat out. When the Keesling family of Indiana was about to be killed by carbon monoxide, their cat clawed at the wife Cathy’s hair until she woke up and called for help.No one could explain their timely heroics.Both pets were rescued by their owners in infancy-----Toby as a 4-week-old thrown into a garbage bin to die, and Winnie as a week-old orphan hiding under a barn, so helpless that Cathy’s husband, Eric, had to feed her milk with an eyedropper.As the Keeslings recalled it, a gas-driven pump being used broke down, spreading carbon monoxide through the house. By the time Winnie went to rescue, the couple’s 14-year-old son was already unconscious. “Winnie jumped on the bed and was clawing at me, with a kind of angry sound,” Cathy Keesling said. The state police responding to her 911 call said the family was only minutes from death, judging by the amount of poisonous gas in the house.Amy Paul’s husband was at his job when she took a midday break from making jewelry and bit into an apple. “Normally I peel them, but I read in Good Housekeeping Magazine that the skin has all the nutrients, so I ate the skin, and that’s what caused me to choke,” she recalled. “I couldn’t breathe and I was in panic when Toby jumped on me. He never does that, but he did, and saved my life.”Both Toby and Winnie accompanied their owners to the awards luncheon.21. What would be the suitable title for the passage?A. Great Honors for Cat and DogB. Dog and Cat Honored for Saving Their MastersC. Unforgettable ExperiencesD. So Smart Animals Are22. Winnie saved the lives of its owner’s w hole family in an accident by __________.A. jumping onto its ownerB. calling for helpC. making some strange noisesD. clawing at Cathy’s hair23. Which of the following has the similar meaning to the underlined word “infancy” in Paragraph 4?A. babyhoodB. YouthC. Middle ageD. agedness24. What caused the carbon monoxide spreading through the house?A. A pump breaking down.B. A driver breaking into the house.C. The burning gas.D. The poisonous gas.BFinland is perhaps the most beautiful and mysterious(神秘的)of the countries of northern Europe. Two - thirds of its surface is covered with thick forests and among them lie lakes, connected with rivers and canals. The northern part of this country is inside the Arctic Circle, where almost no trees can grow because of its cold weather and the people use their deer for transport, clothing and food.The Finnish history began in the Middle Ages. In about 1155, Finland was conquered by its western neighbouring Sweden. After a period of rule by Denmark in the 14th century, the Swedes won back independence and power in 1523 under their brave king. During the Napoleonic Wars (1814 - 1818) Finland was passed finally from Sweden to Russia. The opportunity came in 1917. when the Russian Revolution brought foreign rule of Finland to an end. Shortly after Soviet Russia made peace with Germany, 1919 saw the founding of the Finnish Republic.The years between the First and Second World Wars were years of progress and growing development. Finland has no coal or oil, and the nation's wealth lies in the timber (木材) from its forests, which supplies material for paper and furniture making, and in the electric power from its water.25．From the passage, we learn that Finland ________.A．lies inside the Arctic CircleB．is next to the countries of northern EuropeC．lies east of SwedenD．is entirely covered with forests and lakes26．In the history, Finland was sequentially(相继的) ruled by ________. A．Sweden, Germany, Denmark and RussiaB．Sweden, Denmark, Sweden and RussiaC．Sweden, Denmark, Russia and GermanyD．Sweden, Russia, Denmark and Russia27．Finland must have been under the control of ________ for as long as one hundred years or so .A．RussiaB．DenmarkC．SwedenD．foreign countries28．Finland won its complete independence in ________.A．1523B．1917C．1155D．1919CThe Healthy habits survey(调查) shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.29. What is found out about American seniors?A. Most of them have good habits.B. Nearly 30% of them bathe three days a week.C. All of them are fighting germs better than expected.D. About one third of them brush their teeth only once a day.30. Doctors suggest that people should wash their hands ________.A. twice a dayB. three times a dayC. four times a dayD. eight times a day31. Which of the following is true according to the text?A. We should keep from touching our faces.B. There are less than 300 types of bacteria in the mouth.C. A kitchen sponge can carry more germs than a toilet.D. We should wash our hands before touching a door handle.DIt was once thought that air pollution affected only the area immediately around large cities with factories and/or heavy automobile traffic．Today, we know that although these are the areas with the worst air pollution, the problem is actually worldwide．On several occasions over the past decade, a heavy cloud of air pollutionhas covered the entire eastern half of the United States and led to health warnings even in rural areas away from any major concentration of manufacturing and automobile traffic．In fact, the very climate of the entire earth may be affected by air pollution．Some scientists feel that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels (coal and oil） is creating a “greenhouse effect" ----- holding in heat reflected from the earth and raising the world's average temperature．If this view is correct and the world's temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York, Boston, Miami, and New Orleans will be under water．Another view, less widely held, is that increasing particulate (废气排往空中而形成的微粒、颗粒）matter in the atmosphere is blocking sunlight and lowering the earth's temperature ─ a result that would be equally disastrous．A drop of just a few degrees could create something close to new ice age and would make agriculture difficult or impossible in many of our top farming areas．At present we do not know for sure that either of these conditions will happen (though one recent government report prepared by experts in the field concluded that the greenhouse effect is very likely）．Perhaps, if we are very lucky, the two tendencies willoffset each other and the world's temperature will stay about the same as it is now．32．As pointed out at the beginning of the passage, people used to think that air pollution ______．A．caused widespread damage in the countrysideB．affected the entire eastern half of the United StatesC．had damaging effects on healthD．existed merely in urban and industrial areas33．The underlined word “offset" in Para．2 could best be replaced by______．A．slip into B．make up forC．set up D．catch up with34．It can be inferred from the passage that ______．A．lowering the world's temperature merely a few degrees would lead many major farming areas to disasterB．raising the world's temperature only a few degrees would not do much harm to life on earthC．almost no temperature variations have occurred over the past decadeD．the world's temperature will remain constant in the years to come35．This passage is mainly concerned with ______．A．the greenhouse effectB．the burning of fossil fuelsC．the potential effect of air pollutionD．the likelihood (可能性） of a new ice age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中选出能填入空白处的最佳选项，选项中有两项为多余选项。
甘肃省会宁县第二中学2015_2016学年高一物理下学期期中试题
会宁二中2015~2016学年度第二学期中期考试高一物理试卷考试时间：90分钟总分：110分一、选择题：本大题共10小题，每题6分，共60分，1-6小题在列出的四个选项中，只有一项符合题目要求。
7-10小题在列出的四个选项中，有不止一个选项是符合题目要求的，全部选对得6分，少选且正确的得3分，未选、错选不得分,把正确选项的序号涂在答题卡上。
1、下列说法正确的是( )A. 平抛运动是一种匀变速运动B. 平抛运动的物体落地时的速度可能是竖直向下的C．匀速圆周运动是一种匀变速运动D．因为物体做圆周运动才产生向心力2. 甲、乙两个质点间的万有引力大小为F，若甲物体的质量不变，乙物体的质量增加到原来的2倍。
同时，它们之间的距离减为原来的，则甲、乙两物体间的万有引力大小将变为（）A. FB.C. 8FD. 4F3.某行星质量为地球质量的，半径为地球半径的3倍，则此行星的第一宇宙速度约为地球第一宇宙速度为（）A. 9倍B. 倍C. 3倍D. 倍4、同步卫星是指相对于地面不动的人造地球卫星( )A．它可以在地面上任一点的正上方，且离地心的距离可按需要选择不同值B．它可以在地面上任一点的正上方，但离地心的距离是一定的C．它只能在赤道的正上方，但离地心的距离可按需要选择不同值D．它只能在赤道的正上方，且离地心的距离是一定的5、我国发射的神州五号载人宇宙飞船的周期约为90min。
如果把它绕地球的运动看作匀速圆周运动，飞船运动和人造地球同步卫星的运动相比( )A. 飞船的轨道半径大于同步卫星的轨道半径B. 飞船的运行速度小于同步卫星的运行速度C. 飞船运动的向心加速度大于同步卫星运动的向心加速度D. 飞船运动的角速度小于同步卫星运动的角速度6、轻杆一端固定质量为m的小球，以另一端O为圆心，使小球在竖直平面内作半径为R 的圆周运动，则( )A. 小球过最高点时的最小速度是B. 小球过最高点时，杆所受弹力不能为零C. 小球过最高点时，球的速度时，杆对球产生向下的拉力D. 小球过最高点时，球的速度时，球对杆产生向上的拉力7、某物体受到大小分别为3N、4N和8N的三个共点恒力作用，若某时刻速度为5m/s，则该物体：( )A、一定做匀速直线运动B、一定做匀变速直线运动C、可能做曲线运动D、速度一定变化8、如图所示，一条小船过河，河宽d=120m，河水流速V1=3m/s，船在静水中速度V2=4m/s，关于小船的运动，以下说法正确的是：( )A、小船合运动的速度大小一定是5m/s，B、小船渡河的最短时间为30sC、小船若以最短时间渡河，则其实际运动轨迹与河岸垂直D、小船实际运动的最短位移是120m9、生活中的圆周运动是很常见的。
甘肃省会宁县第二中学2015-2016学年高一下学期期中考试地理试题Word版含答案
会宁二中2015-2016学年第二学期高一地理期中测试卷（满分100分，时间90分钟）一、选择题（30个小题，每小题2分，共60分）1．我国当前人口迁移的主要类型是A．由农村到农村的人口迁移B．由城市到城市的人口迁移C．由农村到城市的人口迁移 D．由城市到农村的人口迁移2．对于人口迁移所造成的影响，正确的是A．在迁出地，缓解了当地的人地矛盾B．在迁入地，有利于加强当地与外界的各种联系C．在迁出地，经济得到发展，同时产生一定环境问题D．在迁出地，对环境造成一定的压力读不同国家人口增长示意图，完成3～4题。
3.与目前我国人口增长状况相似的类型是A．① B．② C．③ D．④4.图中国家类型④所反映的人口问题主要是A．城市人口比重大，劳动力过剩 B．少年儿童比重大，就业压力过重C．人口老龄化严重，社会负担过重 D．人口总数太少，劳动力严重缺少下图表示人口数量变动状况（迁移差额率正值表示人口迁入），据此完成5～6题。
5．图中丙点表示的人口变动状况正确的是（）A．人口增加B．人口减少C．变动较大 D．基本不变6．能正确反映目前伦敦市区人口变动状况的是（）A．甲 B．乙 C．丙 D．丁下图是不同城市间的人口流动趋势示意图，据此完成7-8题。
7、符合图中所示人口流动趋势的国家和地区是A．20世纪60年代的中国 B．20世纪80年代的美国C．20世纪90年代的欧洲 D．20世纪90年代的中国8、引发图中所示人口流动的最主要的因素是A. 政治因素 B．环境因素 C．经济因素 D．文化因素读下面两幅漫画，回答9～10题。
9. 图示信息显示，影响环境人口容量的首要因素是A. 人口密度B. 资源的丰富程度C.经济发展水平D. 人口消费水平10.与环境人口容量呈负相关的因素是A．生产能力 B．科技水平 C．资源量 D．消费水平11.对于制定一个国家或地区的人口战略和人口政策有着重要的意义，进而影响区域经济社会发展战略的是A. 环境承载力B. 人口合理容量C. 人口容量D. 环境的限制性12．一个城市一般都具有的功能区是A．商业区、文化区、交通区 B．住宅区、工业区、商业区C．行政区、仓库区、娱乐区 D．工业区、农业区、商业区13．大城市和特大城市的市中心，往往形成A．中心商务区 B．豪华游乐区C．无污染工业区 D．豪华住宅区14. 城市住宅区是城市居民A．体育锻炼和娱乐的场所 B．共同学习和相互监督的场所C．相互联系和相互交流的场所 D．休养生息的场所15．距离市中心的远近，对下列活动影响最大的是A．住宅 B．工业 C．商业 D．行政16. 目前，一些城市选择近郊到远郊建造公租房、经济适用房。
甘肃省会宁县第二中学2015-2016学年高一英语下学期期中试题
会宁二中2015-2016学年度高一英语期中测试卷注意事项：1.本试卷分第I卷（选择题）和第II卷(非选择题)两部分。
2.本试卷满分150分，考试时间120分钟。
3.答案写在答题纸上，试卷上答题无效。
第I卷第一部分：阅读理解（共两节，满分40分）第1节，阅读下列短文，从每题所给的四个选项（A﹑ B﹑ C﹑ D）中选出最佳选项。
（共15小题；每小题2分，共30分）AI found out one time that doing a favor for someone could get you into a lot of trouble.I was in the eighth grade at the time, and we were having a final test. During the test, the girl sitting next to me whispered something, but I didn’t understand. So I leaned over her way and found out that she was trying to ask me if I had an extra pen. She showed me that hers was out of ink and would not write. I happened to have an extra one, so I took it out of my pocket and put it on her desk.Later, after the test papers had been turned in, the teacher asked me to stay in the room when all the other students were dismissed. As soon as we were alone she began to talk to me about what it meant to grow up; she talked about how important it was to stand on your own two feet and be responsible (负责任) for your own acts. For a long time, she talked about honesty and emphasized the fact that when people do something dishonest, they are really cheating themselves. She made me promise that I would think seriously about all the things she had said, and then she told me I could leave. I walked out of the room wondering why she had chosen to talk to me about all those things.Later on, I found out that she t hought I had cheated on the test. When she saw me lean over to talk to the girl next to me, it looked as if I was copying answers from the girl’s test paper. I tried to explain about the pen, but all she could say was it seemed very very strange to her that I hadn’t talked of anything about the pen the day she talkedto me right after the test. Even if I tried to explain that I was just doing the girl a favor by letting her use my pen, I am sure she continued to believe that I had cheated on the test.1. The story took place exactly ____ .A. in the teacher’s officeB. in an exam roomC. in the schoolD. in the language lab2. The girl wanted to borrow a pen, because ____ .A. she had not brought a pen with herB. she had lost her own on her way to schoolC. there was something wrong with her ownD. her own had been taken away by someone3. The thing(s) emphasized(强调) in her talk was(were) ____ .A. honestyB. sense of dutyC. seriousnessD. all of the above4. The boy knew everything ____ .A. the moment he was asked to stay behindB. when the teacher started talking about honestyC. only some time laterD. when he was walking out of the roomBWhen I lived in Spain, some Spanish friends of mine decided to visit England by car. Before they left, they asked me for advice about how to find accommodation (住所). I suggested that they should stay at ‘bed and breakfast’ houses, because this kind of accommodation gives a foreign visitor a good chance to speak English with the family. My friends listened to my advice, but they came back with some funny stories.“We didn’t stay at bed and breakfast houses,” they said, “because we found that most families were away on holiday.”I thought this was strange. Finally I understood what had happened. My friends spoke little English, and they thought ‘VACANCIES’ meant ‘holidays’, because the Spanish w ord for ‘holidays” is ‘vacancies’. So they did not go to house where the sign outside said ‘VACANCLES’, which in English means there are free rooms. Then my friends went to house wherethe sign said ‘NO VACANCLES’, be cause they thought this meant the people who owned the house were not away on holiday. But they found that these houses were all full. As a result, they stayed at hotels!We laughed about this and about mistakes my friends made in reading other signs. In Spanish, the word ‘DIVERSION’ means fun. In English, it means that workmen are repairing the road, and that you must take a different road. When my friends saw the word ‘DIVERSION’ on a road sign, they thought they were going to have fun. Instead, the road ended in a large hold.English people have problems too when they learn foreign languages. Once in Paris. When someone offered me some more coffee, I said ‘Thank you’ in French. I meant that I would like some more, However, to my surprise the coffee pot was taken away! Later I found out that ‘Thank you’ in French means ‘No, thank you.’5. My Spanish friends wanted advice about ______.A. learning EnglishB. finding places to stay in EnglandC. driving their car on English roadsD. going to England by car6. I suggested that they stay at bed and breakfast houses because ______.A. they would be able to practice their EnglishB. it would be much cheaper than staying in hotelsC. it would be convenient for them to have dinnerD. there would be no problem about finding accommodation there7. “NO VACANCIES” in English means ______.A. no free roomsB. free roomsC. not away on holidayD. holidays8. When someone offered me more coffee and I said ‘Thank you’ in French, I ______.A didn’t really want any more coffee B. wanted them to take the coffee pot awayC. really wanted some more coffeeD. wanted to express my politenessCSometimes you’ll hear people say that you can’t love others until you love yourself. Sometimes you’ll hear people say that you can’t expect someone else to love you until you love yourself. Either way, you’ve got to love yourself first and this can be tricky. Sure we all know that we’re the apple of our parents’ eyes, and that our Grandmas think we’re great talents and our Uncle Roberts think that we will go to the Olympics. But sometimes it’s a lot harder to think such nice thoughts about ourselves. If you find that believing in yourself is a challenge. It is time you build a positive self-image and learn to love yourself.Self-image is your own mind’s picture of yourself. This image includes the way you look, the way you act, the way you talk and the way you think. Interestingly, our self-images are often quite different from the images others hold about US. Unfortunately, most of these images are more negative than they should be. Thus changing the way you think about yourself is the key to change your self-image and your whole world.The best way to defeat a passive self-image is to step back and decide to stress your successes. That is, make a list if you need to, but write down all of the great things you do every day. Don’t allow doubts to occur in it.It very well might be that you are experiencing a negative self-image because you can’t move past one flaw or weakness that you see about yourself. Well, roll up your sleeves and make a change of it as your primary task. If you think you’re silly because you aren’t good at math, find a tutor. If you think you’re weak because you can’t run a mile, get to the track and practice. If you think you’re dull because you don’t wear the latest trends, buy a few new clothes. But remember, just because you think it doesn’t mean it’s true.The best way to get rid of a negative serf-image is to realize that your image is far from objective, and to actively convince yourself of your positive qualities. Changing the way you think and working on those you need to improve will go a long way towards promoting a positive self-image. When you can pat(拍) yourself on the back, you’ll know you’re well on your way. Good luck!9. You need to build a positive self-image when you _________.A. dare to challenge yourselfB. feel it hard to change yourselfC. are unconfident about yourselfD. have a h igh opinion of yourself10. According to the passage, our self-images _________.A. have positive effectsB. are probably untrueC. are often changeableD. have different functions11. How should you change your self-image according to the passage?A. To keep a different image of others.B. To make your life successful.C. To understand your own world.D. To change the way you think.12. Who are the intended readers of the passage?A. ParentsB. AdolescentsC. EducatorsD. People in generalDEuropeans should try to stay indoors if ash from Iceland's volcano starts settling, the World Health Organization warned Friday as small amounts fell in Iceland, Scotland and Norway.WHO spokesman Daniel Epstein said the microscopic(微小的) ash is potentially dangerous for people when it starts to reach the Earth because inhaled(吸入) particles can enter the lungs and cause respiratory problems. And he also said Europeans who go outside might want to consider wearing a mask.Other experts, however, weren't convinced the volcanic ash would have a major effect on peoples' health and said WHO's warnings were "hysterical." They said volcanic ash was much less dangerous than cigarette smoke or pollution. Volcanic ash is made of fine particles of fragmented volcanic rock. It is light gray to black and can be as fine as talcum powder. During a volcanic eruption, the ash can be breathed deep into the lungs and cause irritation even in healthy people. But once it falls from a greater distance — like from the cloud currently hovering above Europe — its health effects are often minimal, experts say."Not all particles are created equal," said Ken Donaldson, a professor of respiratory toxicology at the University of Edinburgh, "In the great scheme of things, volcanic ash is not all that harmful." And he said most Europeans' exposure to volcanic ash would be negligible and that only those in the near districts of the Icelandic volcano would likely be at risk.Dr. Stephen Spiro, a professor of respiratory medicine and deputy chair of the British Lung Foundation, said the further the particles travel, the less dangerous they will be. "The cloud has already passed over northern Scotland and we haven't heard of any ill effects there," he said. Spiro said to wear masks or stay indoors to avoid volcanic ash was "over the top" and "a bit hysterical."13. The text is mainly about ______ .A. the effect of volcanic ashB. the health risk of volcanic ashC. the disadvantages of volcanic ashD. the opinions on health risk of volcanic ash14. Which one is true according to Paragraph3?A. The volcanic ash’s effects on Europeans were little.B. The ash caused irritation even in healthy people.C. Other experts thought WTO’S warnings were useful.D. The volcanic ash was more dangerous than cigarette smoke or pollution.15. What can we learn from the passage?A. The volcanic ash wouldn’t be harmful to people.B. All experts thought the volcanic ash did great harm to our health.C. People close to the volcano would likely be at risk according to some experts.D. Europeans should stay indoors because Iceland's volcano starts settling.第2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。
甘肃省会宁县第二中学2015-2016学年高一下学期期中考试数学试题 含答案
2015-2016学年度会宁二中第二学期高一期中试卷第I 卷(选择题）评卷人得分一、选择题（每题5分，共60分）1．在0到2π范围内，与角终边相同的角是（ ）A ．B ．C ．D ．【答案】C2．将十进制的数2015化成二进制的数是（ ）A ．()2111101111 B ．()21111011111 C ．()21111101111 D ．()211111011111【答案】D3．如图是一个算法的流程图．若输入x 的值为2，则输出y 的值是（ ）A ．0B ．1-C ．2-D ．3-【答案】C4．如图是某工厂对一批新产品长度（单位：mm）检测结果的频率分布直方图．估计这批产品的中位数为（)A．20 B．25 C．22.5 D．22。
75【答案】C5．某校共有高一、高二、高三学生1290人，其中高一480人，高二比高三多30人，为了解该校学生的身体健康情况，现采用分层抽样方法进行调查，在抽取的样本中有高一学生96人,则该样本中的高三学生人数为（）A．84 B．78 C．81 D．96【答案】B6．为比较甲、乙两地某月14时的气温情况，随机选取该月中的5天，将这5天中14时的气温数据(单位：℃）制成如图所示的茎叶图。
考虑以下结论:①甲地该月14时的平均气温低于乙地该月14时的平均气温；②甲地该月14时的平均气温高于乙地该月14时的平均气温;③甲地该月14时的气温的标准差小于乙地该月14时的气温的标准差；④甲地该月14时的气温的标准差大于乙地该月14时的气温的标准差.其中根据茎叶图能得到的统计结论的编号为（ ） A.①③ B.①④ C 。
②③ D.②④ 【答案】B7．一支田径队有男运动员56人,女运动员42人，用分层抽样方法从全体运动员中抽出一个容量为28的样本，则该样本中男运动员的人数为( ）A 。
12B 。
14 C.16 D 。
18【答案】C8．从某高中随机选取5名高三男生,其身高与体重的数据如下表所示:根据上表可得回归直线方程为0.56y x a =+，据此模型预报身高为172cm 的高三男生体重为 （ )A ．70.09kgB ．70.12kgC ．70.55kgD ．71.05kg 【答案】B9．在区间]2,0[上随机地取一个数x ,则事件“1)21(log 121≤+≤-x "发生的概率为( ）A ．32 B. 43 C 。
2015-2016年甘肃省白银市会宁二中高一(下)期中物理试卷(解析版)
2015-2016学年甘肃省白银市会宁二中高一（下）期中物理试卷一、选择题：本大题共10小题，每题6分，共60分，1-6小题在列出的四个选项中，只有一项符合题目要求．7-10小题在列出的四个选项中，有不止一个选项是符合题目要求的，全部选对得6分，少选且正确的得3分，未选、错选不得分，把正确选项的序号涂在答题卡上．1．（6分）下列说法正确的是（）A．平抛运动是一种匀变速运动B．平抛运动的物体落地时的速度可能是竖直向下的C．匀速圆周运动是一种匀变速运动D．因为物体做圆周运动才产生向心力2．（6分）甲、乙两个质点间的万有引力大小为F，若甲质点的质量不变，乙质点的质量增大为原来的2倍，同时它们间的距离减为原来的，则甲、乙两个质点间的万有引力大小将变为（）A．B．F C．4F D．8F3．（6分）某行星质量为地球质量的，半径为地球半径的3倍，则此行星的第一宇宙速度约为地球第一宇宙速度的（）A．9倍B．C．3倍D．4．（6分）同步卫星是指相对于地面不动的人造地球卫星，则（）A．它可以在地面上任一点的正上方，离地心的距离可以按需要选择不同值B．它可以在地面上任一点的正上方，但离地心的距离是一定C．它只能在赤道的正上方，但离地心的距离是一定的D．它只能赤道的正上方，但离地心的距离可以按需要选择不同值5．（6分）我国发射的神州五号载人宇宙飞船的周期约为90min，如果把它绕地球的运动看作是匀速圆周运动，飞船的运动和人造地球同步卫星的运动相比，下列判断中正确的是（）A．飞船的轨道半径大于同步卫星的轨道半径B．飞船的运行速度小于同步卫星的运行速度C．飞船运动的向心加速度大于同步卫星运动的向心加速度D．飞船运动的角速度小于同步卫星运动的角速度6．（6分）轻杆一端固定质量为m的小球，以另一端O为圆心，使小球在竖直平面内作半径为R的圆周运动，则（）A．小球过最高点时的最小速度是B．小球过最高点时，杆所受弹力不能为零C．小球过最高点时，球的速度v＜时，杆对球产生向下的拉力D．小球过最高点时，球的速度v＞时，球对杆产生向上的拉力7．（6分）某物体受到大小分别为3N、4N和8N的三个共点恒力作用，若某时刻速度为5m/s，则该物体（）A．一定做匀速直线运动B．一定做匀变速直线运动C．可能做曲线运动D．速度一定变化8．（6分）如图所示，一条小船过河，河宽d＝120m，河水流速V1＝3m/s，船在静水中速度V2＝4m/s，关于小船的运动，以下说法正确的是（）A．小船合运动的速度大小一定是5m/sB．小船渡河的最短时间为30sC．小船若以最短时间渡河，则其实际运动轨迹与河岸垂直D．小船实际运动轨迹的最短位移是120m9．（6分）生活中的圆周运动是很常见的．下列说法中正确的是（）A．火车在弯道处拐弯的速度越大，则火车受到铁轨对轮缘的作用力越大B．汽车通过拱形桥最高点时，在不离开桥面的情况下，速度越大，汽车对路面的压力越小C．洗衣机脱水时利用离心运动把附着在物体上的水分甩掉D．飞船绕地做匀速圆周运动时，航天员受到的地球引力消失10．（6分）如图为某品牌自行车的部分结构．A、B、C分别是飞轮边缘、大齿盘边缘和链条上一个点．现在提起自行车后轮，转动脚蹬子，使大齿盘和飞轮在链条带动下转动，则下列说法正确的是（）A．A、B、C三点线速度大小相等B．A、B两点的角速度大小相等C．A、B两点的向心加速度与飞轮、大齿盘半径成反比D．由图中信息，A、B两点的角速度之比为3：1二、非选择题：本大题共6小题，共50分，按题目要求作答，解答题应写出必要的文字说明、方程式和主要演算步聚，只写出最后答案的不能得分，有数值计算的题，答案中必须明确写出数值和单位．11．（6分）在研究平抛物体运动的实验中，用一张印有小方格的纸记录轨迹，小方格的边长L＝5cm，若小球在平抛运动途中的几个位置如图中的a、b、c、d所示，则小球平抛的初速度的计算式为v0＝（用L、g表示）．12．（9分）某同学利用如图所示的实验装置来测量小钢球在光滑水平桌面上运动的速度（1）表格中给出了一些实验器材，为了完成实验，请写出所需器材名称前面的序号：（2）实验中需要测的物理量：（3）写出用测量的物理量表达速度大小的计算式：．13．一水平放置直径D＝40cm的圆盘绕过其圆心的竖直轴匀速转动，盘边缘上固定一宽度L＝10mm的竖直挡光片，盘上距转轴r＝10cm处有一质量为20kg的零件随盘一起匀速转动，测得挡光片通过光电门的时间为50.0ms（1ms＝1×10﹣3s），求圆盘转动的角速度和零件受到的摩擦力．14．（6分）某人在墙壁前练习壁球，在离地面高度h＝0.8m，距墙壁L＝0.4m的A点，将球以v0＝2m/s的速度水平击出，如图所示，求球第一次碰撞点的位置．（g取10m/s2）．15．宇航员在某行星上自高h处自由释放一物体，落到行星表面的时间为t，靠近行星表面的卫星运转角速度为ω．求：此行星的半径R．16．（10分）如图所示，飞机离地面高度为H＝500m，水平飞行速度为v1＝100m/s，追击一辆速度为v2＝20m/s同向行驶的汽车，欲使炸弹击中汽车，飞机应在距离汽车的水平距离多远处投弹？（g＝10m/s2）2015-2016学年甘肃省白银市会宁二中高一（下）期中物理试卷参考答案与试题解析一、选择题：本大题共10小题，每题6分，共60分，1-6小题在列出的四个选项中，只有一项符合题目要求．7-10小题在列出的四个选项中，有不止一个选项是符合题目要求的，全部选对得6分，少选且正确的得3分，未选、错选不得分，把正确选项的序号涂在答题卡上．1．（6分）下列说法正确的是（）A．平抛运动是一种匀变速运动B．平抛运动的物体落地时的速度可能是竖直向下的C．匀速圆周运动是一种匀变速运动D．因为物体做圆周运动才产生向心力【解答】解：A、平抛运动只受重力，故根据牛顿第二定律，加速度的大小和方向都恒定，是匀变速曲线运动，故A正确；B、平抛运动因为有水平方向的初速度，故落地速度与水平地面有一定夹角，故不可能竖直向下，故B错误；C、匀速圆周运动的加速度方向始终指向圆心，加速度变化，所以匀速圆周运动是变加速运动，故C错误；D、物体做匀速圆周运动需要一个指向圆心的合外力，即向心力，不是因为圆周运动而产生向心力，故D错误；故选：A。
甘肃省会宁县第二中学2015_2016学年高一历史下学期期中试题
会宁二中2015--2016学年度第二学期高一级历史期中试题一、选择题(本大题共30小题，每小题2分，共60分)1．应劭《风俗通义·佚文》述：“牛乃耕农之本，百姓所仰，为用最大，国家之为强弱也。
”材料表明( ) A．牛耕在农业中具有举足轻重的作用 B．牛耕在当时开始出现C．自给自足的小农经济的生产特点 D．农耕经济在国家中的重要地位2.《三字经》里有“稻粱菽，麦黍稷，此六谷，人所食。
马牛羊，鸡犬豕，此六畜，人所饲”几句。
中国人最早养殖这“六谷”“六畜”的时代是( )A.原始社会末期B.西周时期C.战国时期D.明朝时期3．“凡士工商贾，皆赖食于农，以故农为天下之本务，而工贾皆其末也。
”形成上述观念的根源（）A．重农抑商政策B．资本主义萌芽C．自给自足的自然经济 D．君主专制制度4．新疆吐鲁番等地发现的丝织品中，出现了一些中亚、西亚流行的对禽、对兽纹饰图案；明代烧制了带有阿拉伯文和梵文装饰图案的瓷器。
这主要是（）A.适应对外贸易的需求B.适应中原贵族生产多样化的要求C.反映了汉唐时期民族之间联系的加强D.体现了唐朝兼收并蓄的对外政策5．中国古代瓷器和丝织品的图案、画面普遍有吉祥的寓意，这表明（）A．人们追求和向往美好的生活 B．中国古代封建迷信意识浓厚C．中国人普遍有较高的艺术素质 D．人们对封建黑暗统治强烈不满6．．1847年，英国商人的一个组织的报告书中写道：“中国人所织的白而结实的布比我们的货物贵得多。
我在上海发现，由于我们的布代替了他们的布，他们的织布业已迅速下降了。
”材料实质上反映了( )。
A．洋布物美价廉，竞争力强 B．封建自然经济开始解体C．土布做工粗糙，价格昂贵 D．外国商品完全占据中国市场7．促进隋唐时期商品流通范围扩大的因素有（）①国家的统一②农业经济的发展③手工业的进步④大运河的开通A. ①②③④B. ①②④C. ①③④D. ①②③8．在封建社会一度出现过“富者田连阡陌，贫者亡立锥之地”的现象，其根本原因是（）A.富者具有较强的生产能力B.贫者农业生产积极性不高C.土地私有制的发展D.国家支持富者兼并土地9．诗歌是时代风貌的体现。
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2015年第二学期会宁二中期中考试
高一英语试题答案
阅读理解
1-5 A B D C B 6-10 D A B C C 11-15 B C B C A
16-20 D A B C B 21-25 E D C G A
完型填空
26-30 A B D D C 31-35 C B D C A 36-40 B C A D C 41-45 D A D B C
语法填空
46. in 47. because 48. lead 49. overcoming
50.easier 51. ways 52. for 53. successful 54. most 55. learned/learnt 英汉互译
1.根据，以……为基础2 打赌 3 出发，动身，使爆炸4 从……中受益5．盯着 6 有时，偶尔7 相反8 抄近路，与……相抵触9.关心某人10.被放过，（做坏事）不受惩罚
11.take a chance 12.be in rags 13.as for 14. bring up
15.in memory of 16.take sth.into account/take account of sth. 17.look forward to 18.hold one’s breath 19.earn one’s living 20.before long
短文改错
1.before→ago 2 去掉for 3.unfortunate→unfortunately 4.week →weeks 5.so→but 6.will→would 7.mysely→me 8.farther→far 9.interested→interesting 10.truth前加the
书面表达
参考例文：
I still remember the night when it was a cold , late afternoon and it
was showering．Without an umbrella to shelter me from the heavy rain, I had to stand still and wait for my father．After seemingly long hours’ waiting, my father finally arrived．I was about to rush home when I found that my English teacher, Miss Wang was also waiting for the rain to stop．Without any hesitation, I went to her and gave my umbrella to her．Surprised but happy, she accepted it．Seeing Miss Wang walking in the rain with my umbrella, I smiled and a sense of happiness sprung up in my heart．As a famous saying goes, happiness is only real when shared．As long as we are willing to share, we’ll find happiness everywhere．。