甘肃省兰州第一中学2017-2018学年高二上学期期中考试英语试题 Word版含答案 (2)

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甘肃省兰州第一中学2017-2018学年高二下学期第一次月考生物试题 Word版含解析

甘肃省兰州第一中学2017-2018学年高二下学期第一次月考生物试题 Word版含解析

兰州一中2017-2018-2学期高二年级3月月考试题生物第I卷单项选择题1. 如图表示人体中部分体液的关系图,则下列叙述正确的是A. 内环境的稳态不需要细胞参与B. 甲表示细胞内液C. 红细胞存在于乙液中D. 丁液中O2浓度比甲液中高【答案】C【考点定位】内环境的组成【名师点睛】理清脉络,弄清内环境三个成分之间关系2. 12岁的小明被诊断为下丘脑发生病变,下列生命活动中可能受到影响的是①睾丸生长发育受影响②血糖调节受影响③血浆pH剧烈变化④言语功能障碍⑤细胞外液渗透压不稳定A. ①②⑤B. ②③④C. ③④⑤D. ①④⑤【答案】A【解析】试题分析:下丘脑分泌的促性腺激素释放激素作用于垂体,促使垂体分泌促性腺激素,促性腺激素能够促进性腺的生长发育,因此若下丘脑发生病变,睾丸生长发育可能受影响,①正确;血糖浓度的变化引起下丘脑有关神经兴奋,进而调节胰岛B细胞或胰岛A细胞分泌相关的激素,因此若下丘脑发生病变,血糖调节可能受影响,②正确;血浆pH的调节与血浆中存在的缓冲物质密切相关,所以若下丘脑发生病变,不会影响到血浆pH的变化,③错误;言语功能是由大脑皮层的相应言语区进行调控的,与下丘脑无关,④错误;由下丘脑合成经垂体释放的抗利尿激素能够促进肾小管、集合管对水的重吸收,导致尿量减少,从而使细胞外液渗透压降低,所以若下丘脑发生病变,可能导致细胞外液渗透压不稳定,⑤正确。

综上所述,供选答案组合,A项正确,B、C、D三项均错误。

考点:人和高等动物的激素调节【名师点睛】本题关键在于抓住“下丘脑发生病变”这一前提,联系下丘脑的功能分析相应的问题情境。

这提示我们在平时的学习中要善于进行横向联系,即对教材中与某一知识有关的内容横向辐射,进行归纳。

例如本题,可以“下丘脑在人体生命活动调节中的功能”为中心,横向辐射水盐平衡调节、性激素分泌的分级调节、血糖平衡调节等知识。

3. 下列过程,不发生在内环境中的生理生化反应是①神经递质和激素的合成②抗体和抗原的特异性结合③丙酮酸氧化分解成二氧化碳和水④神经递质和突触后膜受体的作用⑤乳酸与碳酸氢钠作用生成乳酸钠和碳酸⑥蛋白质在消化道中的消化分解A. ②④⑤B. ②⑤⑥C. ①③④D. ①③⑥【答案】D【解析】试题分析:内环境是指细胞外液,主要包括血浆、组织液和淋巴。

甘肃省兰州第一中学2017-2018学年高一下学期第一次月考英语试题 含答案 精品

甘肃省兰州第一中学2017-2018学年高一下学期第一次月考英语试题 含答案 精品

兰州一中2017-2018-2学期3月月考高一月考试题英语 2018-3第I卷I.阅读理解(共两节,每小题2分,共30分)第一节阅读下列短文,从每题所给的四个选项(A、B、C、D)中,选出最佳选项。

(每小题2分,满分20分)ADo you like air travel with a service dog? Air travel makes some people very nervous. The crowds, the noise and flying itself can cause unease. But there are classes people can take to help them defeat their fear of flying. And, let me introduce similar training for service dogs that suffer the same problemService dogs almost never leave the side of the people they care for. You will see them working on buses, trains and other public transport systems. But the busy environment found at an airport can trouble even the best trained working dog.People with disabilities depend on their dogs. They want the animals to safely guide them through security areas. They also need the dogs to remain calm on duty on the plane, even when the flying is not smooth. This takes special training. The Air Hollywood K9 Flight School is one place where such help can be found.The school has a piece of equipment that provides the sights, sounds and even the feel of an airplane in flight. It is called a flight simulator, which was built for filming airplane scenes in movies.Sandy Alexander has a disability that requires his two-year-old dog, Doc, to be always at his side. Mr. Alexander took the dog to the flight school to get him ready for plane trips. He says Doc did not like the bumpy part of the flight simulation( 模拟).Dog trainer Mary Segall is with Canine Companions for Independence. It provides dogs for people with disabilities. Ms Segall says successful training is based on a simple rule: preparation." Dogs need to be exposed gradually and repetitively to stimulation, to the environment, to loud noises, to sounds and to other dogs so that when this experience happens to them on a daily basis, they are able to act in a way that they're used to actin g and that they don't get excitable."Dog owners who attended the training at Air Hollywood K9 Flight School say they now feel much more at ease about future fli ght. Their dogs also seem ready for take-off.1. How does the author introduce the topic of the text?A. By asking a question.B. By introducing a novel.C. By comparing fear of flying.D. By giving an example.2. Why is Sandy Alexander's example given in Paragraph 5?A. Because he likes dogs.B. Because his dog is clever.C. Because he will play a role in a film.D. Because the author wants to develop the following paragraphs.3. From the last paragraph we can draw a conclusion that ________.A. the training is very easyB. service dogs don't like flying with their ownersC. service dogs adapt themselves to the stimulation slowly.D. dog owners are satisfied with trainingBIt is quite reasonable to blame traffic jams, the cost of gas and the great speed of modern life, but manners on the road are becoming horrible. Everybody knows that the nicest man would become fierce tigers behind the wheel. It is all right to have a tiger in a cage, but to have one in the driver's seat is another matter.Road politeness is not only good manners, but good sense. It takes the most cool-hearted drivers great patience to give up the desire to beat back when forced to face rude driving. On the other hand, a little politeness goes a long way towards reducing the possibility of quarrelling and fighting. A friendly nod or a wave, or thanks in answer to an act of politeness helps to create an atmosphere of good will and becomes so necessary in modern traffic conditions. But suc h behaviors of politeness are by no means enough. Many drivers nowadays don't even seem able to recognize politeness when they see it.However, misplaced politeness can also be dangerous. Typical example is the driver who waves to a child crossing the street at a wrong place into the path of oncoming cars that may not be able to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they want to.An experienced driver, whose manners are faultless, told me it would help if drivers learnt to correctly join in traffic stream without causing total jams that give rise to unpleasant feelings. Unfortunately, modern drivers can't even learn to drive, let alone master the roadmanship(驾车技能). Years ago, experts warned us that th e fast increase of the car ownership would demand more give-and-take from all road users. It is high time that all of us took this message to heart.4. According to the writer, a good driver should __________.A. beat back when forced to face rude drivingB. be able to recognize politeness when he sees itC. join in traffic stream quickly however other people feelD. encourage children to cross the roads whenever they want to5. Troubles on the road are often caused by _______.A. great speedB. traffic jamsC. terrible road conditionsD. the behaviors of the drivers6. It is not always right for drivers to ________.A. master roadmanshipB. create atmosphere of good willC. encourage old ladies to cross the roadD. give a friendly nod to show politeness7. What's the best title of the passage above?A. Road PolitenessB. Traffic JamsC. Good MannersD. Modern DriversCParents who help their children with homework may actually be bringing down their school grades. Other forms of parental involvement, including volunteering at school and observing a child's class, also fail to help, according to the most recent study on the topic.The findings challenge a key principle of modern parenting where schools expect them to act as partners in their children's education. Previous generations concentrated on getting children to school on time, fed, dressed and ready to learn. Keith Robinson, the author of the study, said, "I really don't know if the public is ready for this but there are some ways parents can be involved in their kids' education that leads to declines in their academic performance. One of the thingsthat was consistently negative was their parents' help with homework." Robinson suggested that may be because parents themselves struggle to understand the tasks."They may either not remember the material their kids are studying now, or in some cases never learnt it themselves, but they're still offering advice."Robinson assessed parental involvement performance and found one of the most damaging things a parent could do was to punish their children for poor marks. In general, about 20% of parental involvement was positive, about 45% negative and the rest statistically insignificant.Common sense suggests it was a good thing for parents to get involved because "children with good academic success do have involved parents", admitted Robinson. But he argued that this did not prove parental involvement was the root cause of that success. "A big surprise was that Asian-American parents whose kids are doing so well in school hardly involved. They took a more reasonable approach, conveying to their children how success at school could improve their lives."8. The underlined expression "parental involvement" in paragraph 1 probably means _______.A. parents' participation in children's educationB. parents' expectation on children's healthC. Parents' plan for children's futureD. parent s' control over children's life9. What is the major finding of Robinson's study?A. Parents are not able to help with children's homework.B. Parental involvement is not so beneficial as expected.C. Punishing kids for bad marks is mentally damaging.D. Modern parents raise children in a more scientific way.10.The example of Asian-American parents implies that parents should _______.A. help children realize the importance of schoolingB. take a more active part in school managementC. set a specific life goal for their childrenD. spend more time improving their own lives第二节(共5小题,每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

甘肃省兰州新区舟曲中学2017-2018学年高一下学期期中考试数学试题 Word版含答案

甘肃省兰州新区舟曲中学2017-2018学年高一下学期期中考试数学试题 Word版含答案

2017-2018学年度第二学期期中考试高一年级 数学一、选择题(本大题共12小题 ,每小题5分,共60分,在每小题给出的四个选项中,只有一项是符合题目要求的)1.设α角属于第二象限,且2cos2cosαα-=,则2α角属于 ( )A .第一象限B .第二象限C .第三象限D .第四象限2.若角α的终边落在直线0=+y x 上,则ααααcos cos 1sin 1sin 22-+-的值等于( ).A .2B .2-C .2-或2D .03.若θ为锐角且2cos cos 1-=--θθ,则θθ1cos cos -+的值为( )A .22B .6C .6D .44.运行右面的算法程序输出的结果应是( )A.2B.4C.8D.16 5.已知x ,y之间的一组数据:则y 与x 的线性回归方程a bx y +=ˆ必过点( )A .(20,16)B .(16,20)C .(4,5)D .(5,4)6.将甲、乙两名同学5次物理测验的成绩用茎叶图表示如图,若甲、乙两人成绩的中位数分别为乙甲、xx ,则下列说法正确的是( ) A.乙甲x x <;乙比甲成绩稳定 B.乙甲x x >;甲比乙成绩稳定 C.乙甲x x >;乙比甲成绩稳定 D.乙甲x x <;甲比乙成绩稳定7.给出下面的程序框图,那么其循环体执行的次数是 ( ) A . 500 B. 499C. 1000D. 998x=4 y=2x=yPRINT x^y END7 8 99 8 27 911 2 5 6甲 乙(第6题)8.360和504的最大公约数是 ( ) (第7题)A.72B.24C.2520D.以上都不对9.若()1033=a ,()652=b ,()211111=c ,则三个数的大小关系是( )A .a b c >>B . a c b >>C .b a c >>D .c b a >>10.一枚质地均匀的硬币,如果连续抛掷1000次,那么第999次出现正面朝上的概率是( )A .9991B .10001C .1000999D .2111.甲、乙两人做“石头、剪刀、布”游戏,两人平局的概率为( )A .91B .92C .31D .9412.将参加夏令营的600名学生编号为:001,002,…,600.采用系统抽样方法抽取一个容量为50的样本,且在第一段中随机抽得的号码是003.这600名学生分别住在三个营区,从001到300在第一营区,从301到495在第二营区,从496到600在第三营区.则三个营区被抽到的人数分别为 ( ) A .25,17,8 B .25,16,9 C .26,16,8 D .24,17,9二、填空题(共4小题,每小题5分,共20分)13.如果,0sin tan <αα且,1cos sin 0<+<αα那么α的终边在第 象限。

甘肃省兰州第一中学2017-2018学年高一下学期期中考试

甘肃省兰州第一中学2017-2018学年高一下学期期中考试

兰州一中2018-2018-2学期高一年级期中考试试题物理说明:本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,满分100分,考试时间为100分钟。

答案写在答题卡上,交卷时只交答题卡。

第Ⅰ卷(选择题,共48分)一、选择题(本题共12小题,每小题4分,共48分。

第1至第8题为单选,9至12题为多选。

全部选对得4分,选对但不全的得2分,有选错或不答的得0分。

)1.下列说法中符合物理史实的是()A.开普勒发现了万有引力定律B.伽利略发现了行星的运动规律C.牛顿首次在实验室里较准确地测出了万有引力常量D.牛顿将行星与太阳、地球与月球、地球与地面物体之间的引力规律推广到宇宙中的一切物体,得出了万有引力定律2.“神舟”十号飞船于2018年6月11日发射升空,如图所示,在“神舟”十号靠近轨道沿曲线从M点到N点的飞行过程中,速度逐渐减小.在此过程中“神舟”十号所受合力的方向可能是()4.质量为m的物体随水平传送带一起匀速运动,A为传送带的终端皮带轮。

皮带轮半径为r,要使物体通过终端时能做平抛运动,皮带轮的转速n至少为()A. C. D.5.如图所示,竖直面内的光滑圆轨道处于固定状态,一轻弹簧一端连接在圆轨道圆心的光滑转轴上,另一端与圆轨道上的小球相连,小球的质量为1 kg,当小球以2 m/s的速度通过圆轨道的最低点时,球对轨道的压力为20 N,轨道的半径r=0.5 m,重力加速度g=10 m/s2,则小球要能通过圆轨道的最高点,小球在最高点的速度至少为()A.1 m/s B.2 m/s C.3 m/s D.4 m/s6.如图所示,中间有孔的物块A套在光滑的竖直杆上通过滑轮用不可伸长的轻绳将物体拉着匀速向上运动,则关于拉力F及拉力F的功率P,下列说法正确的是( )A. F不变, P减小B. F增大, P增大C. F增大, P不变D. F增大, P减小7.在遥远的太空中有三颗星体A、B、C,已知三颗星体的质量均为M,且在空间上组成一正三角形,如图所示,其中的任意一颗星体在另两个星体的作用下,围绕着正三角形的中心做匀速圆周运动.已知正三角形的边长为L,星体的线速度为v、角速度为ω、周期为T、运行的加速度为a,则下列说法中正确的是()A. B. 星体的周期为C. D.8 . 有A、B两小球,B的质量为A的两倍.现将它们以相同速率沿同一方向抛出,不计空气阻力.图中①为A的运动轨迹,则B的运动轨迹是( )A.①B.②C.③D.④9.如图所示是质量1kg的滑块在水平面上做直线运动的v-t图象.下列判断正确的是().A .在t =1 s 时,滑块的加速度为零B .在4 s ~6 s 时间内,滑块的平均速度为3 m/sC .在3 s ~7 s 时间内,合力做功的平均功率的大小为2 WD .在5 s ~6 s 时间内,滑块受到的合力为2 N10. 如图所示,甲、乙两船在同一条河流中同时开始渡河,MN 分别是甲、乙两船的出发点。

二项式定理(1)

二项式定理(1)

x 二项式定理1.【来源】浙江省 2017 届高三“超级全能生”3 月联考数学试题 在二项式(2x - 1)6的展开式中,常数项是( C )xA .-240B .240C .-160D .160答案及解析:2.【来源】安徽省黄山市 2019 届高三第一次质量检测(一模)数学(理)试题在(1+x )6(1-2x )展开式中,含 x 5 的项的系数是( D ) A. 36B. 24C. -36D. -243.【来源】新疆维吾尔自治区 2018 届高三第二次适应性(模拟)检测数学(理)试题若⎛ 2 1 ⎫n- x ⎪ 展开式中含 x 项的系数为-80,则 n 等于( A )⎝ ⎭A .5B .6 C.7 D .84.【来源】浙江省金丽衢十二校联考 2017 届高考二模数学试题在(1+x 3)(1﹣x )8 的展开式中,x 5 的系数是( A ) A .﹣28B .﹣84C .28D .84答案及解析:【考点】二项式定理的应用.【分析】利用二项式定理的通项公式求解即可.【解答】解:由(1+x 3)展开可知含有 x 3 与(1﹣x )8 展开的 x 2 可得 x 5 的系数; 由(1+x 3)展开可知常数项与(1﹣x )8 展开的 x 5,同样可得 x 5 的系数; ∴含 x 5 的项+=28x 5﹣56x 5=﹣28x 5;∴x 5 的系数为﹣28, 故选 A【点评】本题主要考查二项式定理的应用,求展开式的系数把含有 x 5 的项找到.从而可以利用通项求解.属于中档题5.【来源】北京东城景山学校 2016-2017 学年高二下学期期中考试数学(理)试题设(3x -1)4 = a + a x + a x 2 + a x 3 + a x 4 ,则 a + a + a + a的值为( A ).12341234A .15B .16C .1D .-15答案及解析: 在(3x -1)4= a + a x + a x 2 + a x 3 + a x 4 中,令 x = 0 ,可得 a = 1 ,1234再令 x = 1可得 a 0 + a 1 + a 2 + a 3 + a 4 = 16 , 所以 a 1 + a 2 + a 3 + a 4 = 15 .n 7 7 7 故选 A .6.【来源】北京西城八中少年班 2016-2017 学年高一下学期期末考试数学试题在(x + y )n的展开式中,若第七项系数最大,则 n 的值可能等于( D ).A .13,14B .14,15C .12,13D .11,12,13答案及解析:(x + y )n 的展开式第七项系数为 C 6 ,且最大,可知此为展开式中间项,当展开式为奇数项时: n= 6 , n = 12 ,2当有偶数项时 n + 1= 6 , n = 11, 2 或 n + 1 = 7 , n = 13 ,2故 n = 11,12 ,13 . 选 D .7.【来源】广东省广州市海珠区 2018 届高三综合测试(一)数学(理)试题(x + y )(2x - y )6 的展开式中 x 4 y 3 的系数为( D )A .-80B .-40C. 40D .808.【来源】广东省潮州市 2017 届高三数学二模试卷数学(理)试题 在(1﹣2x )7(1+x )的展开式中,含 x 2 项的系数为( B ) A .71 B .70 C .21 D .49答案及解析:【分析】先将问题转化为二项式(1﹣2x )7 的系数问题,利用二项展开式的通项公式求出展开式的第 r+1 项,令 x 的指数分别等于 1,2 求出特定项的系数【解答】解:(1﹣2x )7(1+x )的展开式中 x 2 的系数等于(1﹣2x )7 展开式的 x 的系数+(1﹣2x )7 展开式的 x 2 的系数,(x+1)7 展开式的通项为 T r+1=(﹣2)r C r x r ,故展开式中 x 2 的系数是(﹣2)2C 2+(﹣2)•C 1=84﹣14=60,故选:B .9.【来源】浙江省新高考研究联盟 2017 届第四次联考数学试题 在二项式(x 2- 1)5 的展开式中,含 x 7的项的系数是( C )xA . -10B. 10C. -5D. 510.【来源】辽宁省重点高中协作校 2016-2017 学年高二下学期期末考试数学(理)试题 已知(1 + x )n的展开式中只有第 6 项的二项式系数最大,则展开式奇数项的二项式系数和为( D ) A .212B .211C.210D .2911.【来源】上海市浦东新区 2018 届高三上学期期中考试数学试卷展开式中的常数项为( C )x -A.-1320B.1320C.-220D.22012.【来源】浙江省绍兴一中2017 届高三上学期期末数学试题在(x﹣y)10 的展开式中,系数最小的项是(C )A.第4 项B.第5 项C.第6 项D.第7 项答案及解析:【考点】二项式定理的应用.【分析】由二项展开式可得出系数最小的项系数一定为负,再结合组合数的性质即可判断出系数最小的项.【解答】解:展开式共有11 项,奇数项为正,偶数项为负,且第6 项的二项式系数最大,则展开式中系数最小的项第 6项.故选C.13.【来源】浙江省金华十校联考2017 届高三上学期期末数学试题在(1﹣x)n=a0+a1x+a2x2+a3x3+…+a n x n中,若2a2+a n﹣5=0,则自然数n的值是(B)A.7 B.8 C.9 D.10答案及解析:【考点】二项式定理的应用.【分析】由二项展开式的通项公式T r+1=•(﹣1)r x r可得a r=(﹣1)r•,于是有2(﹣1)2+(﹣1)n﹣5=0,由此可解得自然数n 的值.【解答】解:由题意得,该二项展开式的通项公式•(﹣1)r x r,∴该项的系数,∵2a2+a n﹣5=0,∴2(﹣1)2+(﹣1)n﹣5=0,即+(﹣1)n﹣5•=0,∴n﹣5 为奇数,∴2==,∴2×=,∴(n﹣2)(n﹣3)(n﹣4)=120.∴n=8.故答案为:8.14.【来源】浙江省重点中学2019 届高三上学期期末热身联考数学试题⎛ 2 ⎫5 1⎪1展开式中,x2的系数是( B )⎝⎭A、80B、-80C、40D、-4015.【来源】山东省德州市2016-2017 学年高二下学期期末考试数学(理)试题a 2 4如果x + x - 的展开式中各项系数之和为2,则展开式中x 的系数是( C ) x xA.8 B.-8 C.16 D.-1616.【来源】云南省昆明市第一中学2018 届高三第八次月考数学(理)试题x x2 ⎪ ⎛1- 1 ⎫ (1+ x )6x 3⎝ ⎭ 展开式中 x 的系数为(B )A .-14B .14C. 15D .3017.【来源】安徽省安庆一中、山西省太原五中等五省六校(K12 联盟)2018 届高三上学期期末联考数学(理)试题在二项式(x - 1)n 的展开式中恰好第 5 项的二项式系数最大,则展开式中含有 x 2项的系数是( C )xA .35B .-35C .-56D .56答案及解析:第五项的二项式系数最大,则,通项,令,故系数.18.【来源】辽宁省实验中学、沈阳市东北育才学校等五校 2016-2017 学年高二下学期期末联考数学(理)试题 在( - 2)n 的展开式中,各项的二项式系数之和为 64,则展开式中常数项为( A )xA .60B .45C . 30D .1519.【来源】湖北省武汉市 2018 届高三四月调研测试数学理试题 在(x + 1-1)6 的展开式中,含 x 5项的系数为( B )xA .6B .-6C .24D .-24答案及解析:的展开式的通项 .的展开式的通项=. 由 6﹣r ﹣2s=5,得 r+2s=1,∵r ,s ∈N ,∴r=1,s=0. ∴的展开式中,含 x 5 项的系数为 . 故选:B .20.【来源】辽宁省抚顺市 2018 届高三 3 月高考模拟考试数学(理)试题在(2 -1)6 的展开式中,含 1项的系数为( C )xA. -60B. 160C. 60D. 6421.【来源】2018 年高考真题——数学理(全国卷Ⅲ)(x 2+ 2)5 的展开式中 x 4 的系数为( C )xA .10B .20C .40D .80答案及解析:由题可得 令 ,则所以x2× 4x9 n故选 C.22.【来源】浙江省金华市十校联考 2016-2017 学年高二下学期期末数学试卷在(x 2﹣4)5 的展开式中,含 x 6 的项的系数为( D ) A .20 B .40 C .80 D .160答案及解析:【分析】=(﹣4)r,令 10﹣2r=6,解得 r=2,由此能求出含 x 6 的项的系数.【解答】解:∵(x 2﹣4)5, ∴T r+1==(﹣4)r,令 10﹣2r=6,解得 r=2, ∴含 x 6 的项的系数为=160. 故选:D .23.【来源】浙江省诸暨市牌头中学 2018 届高三 1 月月考数学试题 在⎛x 2 - ⎝2 ⎫6的展开式中,常数项为( D )⎪⎭ A .-240 B .-60 C .60 D .24024.【来源】浙江省湖州市 2017 届高三上学期期末数学试题在(1﹣x )5+(1﹣x )6+(1﹣x )7+(1﹣x )8 的展开式中,含 x 3 的项的系数是( D ) A .121 B .﹣74C .74D .﹣121答案及解析:【考点】二项式定理的应用.【分析】利用等比数列的前 n 项公式化简代数式;利用二项展开式的通项公式求出含 x 4 的项的系数,即是代数式的含 x 3 的项的系数.【解答】解:(1﹣x )5+(1﹣x )6+(1﹣x )7+(1﹣x )8 ==,(1﹣x )5 中 x 4 的系数 ,﹣(1﹣x )9 中 x 4 的系数为﹣C 4=﹣126,﹣126+5=﹣121. 故选:D25.【来源】甘肃省兰州市第一中学 2018 届高三上学期期中考试数学(理)试题在(x 2-1)(x +1)4 的展开式中,x 3 的系数是( A ) A .0B .10C .-10D .20答案及解析:(x +1)4 的展开式的通项, 因此在(x 2-1)(x +1)4 的展开式中,x 3 的系数是26.【来源】山西重点中学协作体 2017 届高三暑期联考数学(理)试题在二项式 + 1的展开式中,前三项的系数成等差数列,把展开式中所有的项重新排成一列,有理项都互 x xx 1 ⎝ ⎭不相邻的概率为( D ) A . 16B . 14C. 1 3D . 51227.【来源】湖北省孝感市八校 2017-2018 学年高二上学期期末考试数学(理)试题已知C 0- 4C 1+ 42C 2- 43C 3+ + (-1)n 4nC n= 729 ,则C 1+ C 2+ + C n的值等于( C )nnnnnA .64B .32 C.63 D .31答案及解析:nnn因为 ,所因,选 C. 28.【来源】辽宁省重点高中协作校 2016-2017 学年高二下学期期末考试数学(理)试题若òn(2x -1)dx = 6 ,则二项式(1 - 2x )n的展开式各项系数和为( A ) A .-1 B .26 C .1 D . 2n29.【来源】浙江省金华十校 2017 届高三数学模拟试卷(4 月份)数学试题若(x -1)8=1+a 1x +a 2x 2+…+a 8x 8,则 a 5=( B ) A .56B .﹣56C .35D .﹣35答案及解析:利用通项公式即可得出. 解:通项公式 T r+1=(﹣1)8﹣r x r ,令 r=5,则(﹣1)3=﹣56.故选:B .30.【来源】广东省茂名市五大联盟学校 2018 届高三 3 月联考数学(理)试题6⎛ 1 ⎫ x 4在( + x ) 1+ y ⎪ 的展开式中, y 2 项的系数为( C )A .200B .180 C. 150 D .120答案及解析:展开式的通项公式,令可得:,,展开式的通项公式 ,令可得,据此可得: 项的系数为 .本题选择 C 选项.31.【来源】吉林省长春外国语学校 2019 届高三上学期期末考试数学(理)试题 (2-x )(1+2x )5 展开式中,含 x 2 项的系数为( B )x x 0 1 2 2017 3n nx A . 30 B . 70 C .90 D .-15032.【来源】浙江省新高考研究联盟 2017 届第三次联考数学试题若(1 + x )3 + (1 + x )4 + (1 + x )5 + + (1 + x )2017 = a + a x + a x 2 + + a x 2017 ,则 a 的值为( D )3 2017 32018 420174201833.【来源】广东省肇庆市 2017 届高考二模数学(理)试题若(x 6+ 1 )n的展开式中含有常数项,则 n 的最小值等于( C )A .3B .4C .5D .6答案及解析:【分析】二项式的通项公式 T r+1=C )r ,对其进行整理,令 x 的指数为 0,建立方程求出 n 的最小值.【解答】解:由题意 )n 的展开式的项为)r =C n r=C r令r=0,得 r ,当 r=4 时,n 取到最小值 5故选:C .【点评】本题考查二项式的性质,解题的关键是熟练掌握二项式的项,且能根据指数的形式及题设中有常数的条 件转化成指数为 0,得到 n 的表达式,推测出它的值.34.【来源】上海市金山中学 2017-2018 学年高二下学期期中考试数学试题 设(3x -1)6= a x 6+ a x 5+ + a x + a ,则| a | + | a | + | a | + + | a| 的值为…( B )651126(A) 26(B) 46(C) 56(D) 26+ 4635.【来源】浙江省台州市 2016-2017 学年高二下学期期末数学试题x -已知在( 2 1 )n的展开式中,第 6 项为常数项,则 n =( D )A .9B .8C .7D .6答案及解析:【考点】二项式系数的性质. 【分析】利用通项公式即可得出. 【解答】解:∵第 6 项为常数项,由 =﹣ •x n ﹣6,可得 n ﹣6=0.解得 n=6. 故选:D .36.【来源】山东省潍坊寿光市 2016-2017 学年高二下学期期末考试数学(理)试题⎛ 1 ⎫6+ 2x ⎪ ⎝ ⎭的展开式中常数项为( B ) A .120B .160C. 200D .24037.【来源】北京西城八中少年班 2016-2017 学年高一下学期期末考试数学试题 (2x + 3)4 = a + a x + a x 2 + a x 3 + a x 4(a + a + a )2 - (a + a )2若0 1 2 3 4,则 0 2 41 3 的值为( A ). 5 x A . C B . C C . C D . Cx x A .1 B .-1 C .0 D .2答案及解析:令 x = 1, a + a + + a = (2 + 3)4 ,1 4令 x = -1, a - a + a - a + a= (-2 + 3)4 ,1234而 (a + a + a )2 - (a + a )22413= (a 0 + a 2 + a 4 + a 1 + a 3 )(a 0 - a 1 + a 2 - a 3 + a 4 )= (2 + 选 A .3)4 (-2 + 3)4 = (3 - 4)4 = 1. 38.【来源】云南省曲靖市第一中学 2018 届高三 4 月高考复习质量监测卷(七)数学(理)试题设 i 是虚数单位,a 是(x + i )6的展开式的各项系数和,则 a 的共轭复数 a 的值是( B ) A . -8iB . 8iC . 8D .-8答案及解析:由题意,不妨令 ,则,将转化为三角函数形式,,由复数三角形式的乘方法则,,则,故正确答案为 B.39.【来源】福建省三明市 2016-2017 学年高二下学期普通高中期末数学(理)试题 a 2 52x + x - 的展开式中各项系数的和为-1,则该展开式中常数项为( A ) x xA .-200B .-120 C.120 D .20040.【来源】甘肃省天水一中 2018 届高三上学期第四次阶段(期末)数学(理)试题已知(1+ax )(1+x )5 的展开式中 x 2 的系数为 5,则 a =( D )A.-4B.-3C.-2D.-141.【来源】广东省深圳市宝安区 2018 届高三 9 月调研测数学(理)试题(1 + 1)(1 + x )5 展开式中 x 2 的系数为 ( A )xA .20B .15C .6D .142.【来源】甘肃省民乐一中、张掖二中 2019 届高三上学期第一次调研考试(12 月)数学(理)试题⎛ a ⎫ ⎛1 ⎫5x + ⎪ 2x - ⎪ ⎝ ⎭ ⎝⎭ 的展开式中各项系数的和为 2,则该展开式中常数项为( D )A .-40B .-20C .20D .4043.【来源】浙江省名校协作体 2018 届高三上学期考试数学试题⎛ 1+ 2⎫(1- x )4 展开式中 x 2 的系数为( C ) x ⎪ ⎝ ⎭A .16B .12C .8D .444.【来源】山西省太原市 2018 届高三第三次模拟考试数学(理)试题已知(x -1)(ax +1)6展开式中 x 2 的系数为 0,则正实数a = ( B ) 22 A .1B .C.53D . 2x 4 5 5 答案及解析:的展开式的通项公式为.令 得 ;令得.展开式 为. 由题意知,解得(舍).故选 B. 45.【来源】吉林省松原市实验高级中学、长春市第十一高中、东北师范大学附属中学 2016 届高三下学期三校联合模拟考试数学(理)试题(x +1)2 (x - 2)4的展开式中含 x 3 项的系数为( D )A .16B .40 C.-40 D .846.【来源】海南省天一大联考 2018 届高三毕业班阶段性测试(三)数学(理)试题若(2x - 3)2018= a + a x + a x 2 + L + ax 2018 ,则 a + 2a + 3a + L + 2018a= ( D )122018A .4036B .2018C .-2018D .-4036123201847.【来源】湖北省天门、仙桃、潜江 2018 届高三上学期期末联考数学(理)试题(1 + x )8 (1 + y )4 的展开式中 x 2y 2 的系数是 ( D )A .56B .84C .112D .168答案及解析:因的展开式 的系数 ,的展开式 的系数 ,所的系数.故选 D.48.【来源】北京西城八中 2016-2017 学年高一下学期期末考试数学试题 ⎛ x 2 - 在二项式⎝ 1 ⎫5⎪⎭ 的展开式中,含 x 的项的系数是( C ). A .-10B .-5C .10D .5答案及解析:解: ⎛ x 2 - 1 ⎫5⎪ 的展开项T = C k (x 2 )k (-x -1 )5-k = (-1)5-k C k x 3k -5 ,令3k - 5 = 4 ,可得 k = 3, ⎝x ⎭ k +1 5 5∴ (-1)5-k C k = (-1)5-3 C 3= 10 . 故选 C .49.【来源】广东省化州市 2019 届高三上学期第二次模拟考生数学(理)试题 已知(x +1)(ax - 1)5的展开式中常数项为-40,则 a 的值为( C )xA. 2B. -2C. ±2D. 450.【来源】福建省“华安一中、长泰一中、南靖一中、平和一中”四校联考 2017-2018 学年高二下学期第二次联考试题(5 月)数学(理)试题若(1 - 2 x )n(n ∈ N *) 的展开式中 x 4的系数为 80,则(1 - 2 x )n的展开式中各项系数的绝对值之和为( C ) A .32B .81C .243D .256。

甘肃省兰州第一中学2018_2019学年高一英语上学期期中试题201811060220

甘肃省兰州第一中学2018_2019学年高一英语上学期期中试题201811060220

兰州一中2018-2019-1学期高一年级期中考试试题英语说明:本试卷分第I卷(选择题)和第II卷(非选择题)两部分,满分120分。

考试时间100分钟。

答案写在答题卡上,交卷时只交答题卡。

第I卷选择题(共60分)第一节阅读理解(共10小题;每小题2分,满分20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。

AA Language Programme for TeenagersWelcome to Teenagers Abroad! We invite you to join us on an amazing journey of language learning.Our CoursesRegardless of your choice of course, you’ll develop your language ability both quickly and effectively. Our Standard Course guarantees a significant increase in your confidence in a foreign language, with focused teaching in all 4 skill areas----speaking, listening, reading and writing. Our Intensive Course builds on our Standard Course, with 10 additional lessons per week, guaranteeing(确保) the fastest possible language learning (see table below).Course Type Days Number of Lesson Course Timetable Standard Course Mon-Fri 20 lessons 9:00——12:30Intensive Course Mon-Fri20 lessons 9:00——12:3010 lessons 13:00——14:30 EvaluationStudents are placed into classes according to their current language skills. The majority of them take on online language test before starting their programme. However, if this is not available, students sit the exam on the first Monday of their course. Learning materials are provided to students throughout their course, and there will never be more than 15 participants in each class.Arrivals and TransferOur programme offers the full package—students are taken good care of from the start through to the very end. They are collected from the airport upon arrival and brought to their accommodation(住宿) in comfort. We require the student’s full details at least 4 weeks in advance.Meals / Allergies(过敏) / Special Dietary RequirementsStudents are provided with breakfast, dinner and either a cooked or packed lunch(which consists of a sandwich, a drink and a dessert). Snacks outside of mealtimes may be purchased by the student individually. We ask that you let us know of any allergies or dietary requirements as well as information about any medicines you take. Depending on the type of allergies and/ or dietary requirements, an extra charge may be made for providing special food.1. How does Intensive Course differ from Standard Course?A. It is less effective.B.It includes extra lessons.C. It focuses on speaking.D. It gives you confidence.2. Before starting their programme, students are expected to _____.A. take a language testB. have an online interviewC. prepare learning materialsD. report their language levels3. With the full package, the programme organizer is supposed to_____.A. inform students of their full flight detailsB. offer students free sightseeing tripsC. collect students’ luggage in advanceD. look after students throughout the programmeBOf course, she wasn’t really my aunt and, out of fear, I never called her that to her face. I only referred to her as “My Aunt Fannie” because the name always made my father laugh quietly and gave my mother cause to look strictly at both of us—at me for being disrespectful of my elder and at my father for encouraging my bad behavior. I enjoyed both reactions so I looked for every opportunity to work thename into as many conversations as possible.As a young woman, my mother had worked in the kitchen of a large Victorian farmhouse. During those years my mother helped Aunt Fanny make the best blueberry jam ever tasted by anyone in Glenfield. She was well-known for her jam and for never sharing the recipe(食谱) with others. Even though my mother knew the recipe by heart, as long as Aunt Fannie was alive, she never made the jam without Aunt Fannie in our kitchen to direct the process and keep the secret.Each August, my mother would prepare me for Aunt Fannie’s visit. One year, after I had helped with the jam process Aunt Fannie gave me a coin and then made me promise that I would never spend it. “Hold onto this coin,” she said, “and someday you will be rich. I still have my very first coin, given to me by my grandmother.” So I kept the coin in a small box and waited to become rich.I now have the blueberry jam recipe and the coin from Aunt Fannie. In people’s eyes Aunt Fannie's success resulted from that secret recipe. But to me, it was just a common recipe. Neither have made me become a rich person, but I keep them as reminders to hold onto the valuable things in life. Money can make you feel rich for a while, but it is the relationships and the memories of time spent with friends and family that truly leave you wealthy. And that is a fortune that anyone can build.4. Why did the author always use the name “My Aunt Fannie” in conversations?A. She was frightened of Aunt Fannie.B. She enjoyed her parents’ reactions.C. She liked Aunt Fannie’s recipe.D. She greatly respected “Aunt Fannie”.5. The underlined word “she” in Paragraph 2 refers to ______.A. Aunt FannieB. the author’s grandmotherC. the author’s motherD. Aunt Fannie’s grandmother6. In the last paragraph, the author encourages readers to______.A. hold onto the first coin in lifeB. make as many friends as possibleC. spend more time with family and friendsD. make money with their own hands7. What could be the best title for this passage?A. The Key to SuccessB. A Fortune Built from a CoinC. Blueberry Jam RecipeD. A Relationship of TrustCIt is widely acknowledged that nearly every kid might come across some kind of school bullying(欺侮), however, the age at which kids were first bullied could influence how strongly they are affected, suggests a new study. And, surprisingly, it is not the youngest kids who are hurt the most in the long term.Bullying can have long-lasting effects, but particularly when it begins in adolescence(青春期), the researchers say. people subjected to either verbal or physical bullying are known to be at greater risk of developing depression, anxiety disorders or to behave violently. But not everyone reacts in this way.Children who were bullied for the first time before they hit adolescence seem to get over it, but those who are bullied for the first time later on in adolescence seem to become more aggressive(富有攻击性的) or are more likely to turn to drinking as a means of coping with it. These are the conclusions of psychologists Matthew Newman and colleagues of Texas at Austin, US.The team gave questionnaires to nearly 1,500 college students about their experience of physical and psychological bullying before adolescence- before high school- and in late adolescence- at high school. They assessed mood and mental state, judging by signs of anxiety or depression, such as sleeplessness. The group was also questioned about how they would react to certain challenges, such as humiliation.People who were bullied all showed slightly higher levels of stress. But while those bullied earlier in life seemed to respond normally to provocation (煽动), people bullied for the first time late in adolescence are more withdrawn and sensitive to violence.There are also sex differences between those bullied for the first time duringadolescence: females are more likely to react aggressively when provoked and males are much more likely to turn to drinking to escape bad situations. The best solutionin all cases was strong social support, whether from friends, family or school. Those with no one to share their problems with suffered the most.So perhaps it is best not to shelter children completely from bullying early on, suggests Newman, “They may get stressed, but unhealthy coping really jumps out when they are bullied for the first time later on.”8. What determines the degree of bullying’s effect on people according to the study?A. The reason why they are bullied.B. The place where they are first bullied.C. The person who first bullies them.D. The age at which they are first bullied.9. What may happen to those first bullied later on in adolescence according to Newman and his colleagues?A. They seem to easily get over the effect of bullying.B. Some are likely to be more aggressive.C. Most of them will respond to bullying normally.D. Most of them are afraid of sharing their problems.10. The sex differences between people bullied for the first time during adolescence are reflected in _______.A. the support they get from the societyB. the effect bullying has on themC. the way they react to provocationD. the type of bullying they receive 第二节阅读补全 (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填入空白处的最佳选项。

甘肃省兰州第一中学2017-2018学年高二下学期第一次月考生物试题 含答案 精品

兰州一中2017-2018-2学期高二年级3月月考试题生物说明:本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。

满分100分,考试时间100分钟。

答案写在答题卡上,交卷时只交答题卡。

第I卷(单项选择题)1.如图表示人体中部分体液的关系图,则下列叙述正确的是A.内环境的稳态不需要细胞参与B.甲表示细胞内液C.红细胞存在于乙液中D.丁液中O2浓度比甲液中高2.12岁的小明被诊断为下丘脑发生病变,下列生命活动中可能受到影响的是①睾丸生长发育受影响②血糖调节受影响③血浆pH剧烈变化④言语功能障碍⑤细胞外液渗透压不稳定A.①②⑤B.②③④C.③④⑤D.①④⑤3.下列过程,不发生在内环境中的生理生化反应是①神经递质和激素的合成②抗体和抗原的特异性结合③丙酮酸氧化分解成二氧化碳和水④神经递质和突触后膜受体的作用⑤乳酸与碳酸氢钠作用生成乳酸钠和碳酸⑥蛋白质在消化道中的消化分解A.②④⑤B.②⑤⑥C.①③④D.①③⑥4.下列选项中,不能引起病人组织水肿的是A.长期蛋白质营养不足B.淋巴管阻塞C.胰岛素分泌不足,出现糖尿D.肾炎导致血浆蛋白丢失5.下表为人体细胞外液(血浆、组织液)和细胞内液的物质组成和含量的测定数据,相关叙述错误的是A. ④属于细胞内液,因为其含有较多的蛋白质、K+等B. ②属于血浆,③属于组织液,②的蛋白质含量减少将导致③增多C. ③与④的成分存在差异的主要原因是细胞膜的选择透过性D.肝细胞中的CO2从产生场所扩散到②至少需穿过5层磷脂分子层6.下列关于兴奋在神经纤维上传导和在神经元之间传递的叙述,正确的是A.神经纤维膜外局部电流的流动方向与兴奋传导方向一致B.兴奋在神经元之间的传递是双向的C.神经递质的合成和释放都是不需要消耗能量的过程D.兴奋传至突触时,在突触后膜上完成“化学信号-电信号”的转变7.利用不同的处理使神经纤维上膜电位产生不同的变化,处理方式及作用机理如下:①利用药物Ⅰ阻断Na+通道;②利用药物Ⅱ阻断K+通道;③利用药物Ⅲ打开Cl-通道,导致Cl-内流;④将神经纤维置于低Na+溶液中。

甘肃省兰州第一中学2015-2016届高一下学期期中考试英语试题 Word版含答案.doc

兰州一中2015-2016-2学期高一年级期中考试试题英语说明:本试卷共分为第I卷(选择题) 和第II卷(非选择题)两部分。

满分100分,考试时间为100分钟。

答案写在答题卡上,交卷时只交答题卡。

第I 卷I.阅读理解(共两节,满分30分)第一节(共10小题;每小题2分,满分20分)阅读下列短文,从每题所给的四个选项中,选出最佳选项,并填写在答题卡上。

AWhen you tidy your messy bedroom, it gets a lot easier to find things. Dreams may work the same way for a messy brain, helping you learn by organizing memories and ideas.To test how much dreams can help learning, Robert Stickgold had some students play a shape-fitting game called Tetris (俄罗斯方块) for a few hours and then go to sleep. Soon they were dreaming of falling Tetris shapes. Interestingly, the worst Tetris players had the most Tetris dreams and improved their game the most. Similar tests have shown the same results for all kinds of skills.As we dream, many important tasks are getting done. The brain decides what to keep and what to forget. It is connecting new experiences to older learning. In fact, the brain is learning all night long.Another important task of dreams may be to help us deal with emotions(情绪). People who have had an upsetting experience often dream about it afterward. Often the dream event changes somehow----another way the brain tries to make the memory less upset. So if your best friend moves away, you might dream that you're the one who's moving. In fact, dreams have a proven power to improve mood, and people who dream about what's bothering them usually feel better sooner than those who don't.Everybody dreams for a couple of hours every night----in the course of your life, you'll spend about 25 years asleep and 6 years dreaming. There's probably no single answer to the questionwhy we dream, but there doesn't have to be. One dream might help you remember your math facts, while another might lead to a new invention, or give you a fun, crazy story to tell your friends. It's all in a night's work for our busy, mysterious brains.1. Robert Stickgold's test shows that________.A. dreams can help improve skillsB. tasks can only be settled through dreamsC. games are useful for memoryD. players stop learning in dreams2. We can learn from Paragraph 4 that_______ .A. dreams can get rid of sufferingsB. only drivers can deal with emotionsC. one may be less upset after a dreamD. dreams can copy what one experienced3. What does the text focus on?A. Dreams and memories.B. The patterns of dreams.C. Dreams and emotions.D. The benefits of dreams.BIn today’s consumer world, we’ve never had so much, yet it seems we’ve never been so unsatisfied. The cost of housing has been rising for decades, and the cost to the planet has been huge, too. But there is a way to live a simpler, greener, and more affordable life: buy a TinyDwelling home!TinyDwelling homes are very small, yet comfortable houses at affordable prices. Each TinyDwelling home includes a living room, kitchen, bathroom, upstairs sleeping area, and convenient storage space. TinyDwelling homes are cheap to run and ecologically-friendly, too. All you need is a small heater to keep your house warm in cold weather, and solar panels (太阳能电池板) to provide light and electricity.TinyDwelling is part of the small-living movement that began in the late 1990s. Back then, a growing number of people began to live in very small homes. They wanted to reduce their possessions, living space, and energy costs, so as to lead more ecologically-friendly lives. But thesmall-living movement really took off after the economic crisis of 2008, when many people realized that they couldn’t afford to keep large homes.Lizzy Morriaon, a small-living lover, started TinyDwelling homes in 2008 to meet the needs of these people. Since then, Lizzy has been designing and building homes nonstop, and TinyDwelling homes have become so popular that thousands of people have bought one. And Lizzy hasn’t only designing and building houses. She has also been teaching people how to build them. Simply buy the plans and materials so that you can build your own home, and save even more money!4. What do we know about the small-living movement?A. It aimed to handle the economic crisis.B. It did not become quite popular until 2008.C. It was well received by house designers.D. It was started by people without houses.5. What is the main attraction of TinyDwelling homes?A. They have upstairs sleeping area.B. They provide storage space.C. They are affordable.D. They are equipped with solar panels.6. Besides designing TinyDwelling homes, Lizzy also ___________.A. helped people to build themB. urged people to buy themC. taught people to save moneyD. offered courses to train designersCAt a fundraising dinner for a school that serves learning-disabled children, the father of one studentdelivered a speech that would never be forgotten by those who attended. He began with a question. ―Everything God does is done with perfection. Yet, my son, Shay, cannot learn and understand things as other children do. Where is God's plan reflected in my son?‖The audience was stilled by the question. The father continued,―I believe that when God brings a child like Shay into the world, an opportunity to realize the Divine(意图) Plan presents itself. And it comes in the way people treat that chil d.‖Then he told the following story:Shay and I walked past a park where some boys Shay knew were playing baseball. Shay asked,―Do you think they will let me play?‖I knew that most boys would not want him on their team. Shay didn't even know how to hold the bat properly, much less connect with the ball. So I approached one of the boys on the field and asked if Shay could play. The boy looked around for guidance from his teammates. Getting none, he took matters into his own hands and said, ―We are losing by six runs(得分). The game is in the eighth inning(回合). He can be on our team and we will try to put him up to bat in the ninth inning.‖In the bottom of the eighth inning, Shay's team scored a few runs but was still behind by three. At the top of the ninth inning, Shay put on a glove and played in the outfield.In the bottom of the ninth inning, Shay's team scored again. They had the potential to win. Would the team actually let Shay bat at this juncture and give away their chance to win the game?Surprisingly, Shay was given the bat. At last, understanding what the boy's intentions had been, the boys from both teams helped Shay win the game for the team and Shay was cheered as the hero.―That day.‖ said the father softly with te ars now rolling down his face,―the boys from both teams helped bring a piece of the Divine Plan into this world.‖7. Why did the father think most of the boys wouldn't let Shay join them?A. Because they knew Shay was anything but good at playing baseball.B. Because they knew Shay was physically disabled.C. Because they didn't get on well with Shay.D. Because it was a very important game and they couldn't afford to lose it.8. The sentence ―Although no hits came his way, he was obviously very happy just to be on the field.‖should be put at the end of ________.A. Paragraph 5B. Paragraph 8C. Paragraph 6D. Paragraph 99. What can we infer from the passage?A. The opponent team let Shay score purposely.B. Shay's team would have lost the game without him.C. It was quite by accident that Shay scored.D. Shay's team let him play because they didn't take the game seriously.10. The underlined word ―juncture‖ can be explained by ________.A. an important gameB. a particular placeC. a puzzling momentD. a critical point第二节(共5小题:每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

甘肃省兰州市第一中学2017-2018学年高一上学期期中考试化学试题Word版含答案

兰州一中2017-2018-1学期期中考试试题高一化学说明:本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。

满分100分,考试时间100分钟。

答案写在答题卡上,交卷时只交答题卡。

相对原子质量: H -1 C-12 O -16 N-14 S-32 Cl-35.5 K -39 He-4Fe-56 Na-23第Ⅰ卷(共50分)选择题(每小题只有一个选项符合题意,每题2分,共50分)1.下列实验中,①pH试纸的使用②过滤③蒸发④配制一定物质的量浓度溶液,均用到的仪器是A.蒸发皿 B.玻璃棒 C.试管 D.分液漏斗2.兰州地区进入秋冬季节后,经常早晨有雾。

从物质的分类来看雾属于胶体,他区别于溶液等其他分散系的本质特征是A. 胶体有丁达尔效应B. 胶体是混合物C. 胶体的粒子直径在1—100nm之间D. 胶体的分散剂为气体3.如果你家里的食用胡麻油不小心混入了大量的水,利用你所学的知识,最简便的分离方法是A. B. C D.4.下列叙述正确的是①氧化还原反应的实质是电子的转移。

②若1 mol气体的体积为22.4 L,则它一定处于标准状况下。

③标准状况下,1 L HCl和1 L H2O的物质的量相同。

④溶于水得到的溶液可以导电的化合物就是电解质。

⑤利用丁达尔现象区别溶液和胶体。

⑥两种物质的物质的量相同,则它们在标准状况下的体积也相同。

⑦在同温、同体积时,气体物质的物质的量越大,则压强越大。

⑧同温同压下,气体的密度与气体的相对分子质量成正比。

A.①②③④B.②③⑥⑦⑧ C .①⑤⑦⑧ D.④⑤⑦⑧5.想一想:Ba(OH)2(固态)、CuSO4(固态)、CH3COOH(液态)这些物质为什么归为一类,下列哪个物质还可以和它们归为一类A.75%的酒精溶液B.硝酸钠C.Fe(OH)3胶体 D.豆浆6.下列反应不能用离子方程式:CO32-+2H+= CO2↑+H2O来表示的是A.BaCO3+HCl B.K2CO3+H2SO4C.Na2CO3+HNO3 D.(NH4)2CO3+HCl7.苹果汁是人们喜欢的饮料。

甘肃省兰州第一中学高一英语下学期期末考试试题(含解析)(2021年整理)

甘肃省兰州第一中学2017-2018学年高一英语下学期期末考试试题(含解析)编辑整理:尊敬的读者朋友们:这里是精品文档编辑中心,本文档内容是由我和我的同事精心编辑整理后发布的,发布之前我们对文中内容进行仔细校对,但是难免会有疏漏的地方,但是任然希望(甘肃省兰州第一中学2017-2018学年高一英语下学期期末考试试题(含解析))的内容能够给您的工作和学习带来便利。

同时也真诚的希望收到您的建议和反馈,这将是我们进步的源泉,前进的动力。

本文可编辑可修改,如果觉得对您有帮助请收藏以便随时查阅,最后祝您生活愉快业绩进步,以下为甘肃省兰州第一中学2017-2018学年高一英语下学期期末考试试题(含解析)的全部内容。

兰州一中2017—2018-2学期期末考试试题高一英语说明:本试卷分第I卷(选择题)和第II卷(非选择题)两部分。

满分120分,考试时间100分钟。

答案写在答题卡上,交卷时只交答题卡。

第I卷(选择题)第一部分阅读理解(共两节,满分30分)第一节阅读理解(共10小题每小题2分,满分20分)阅读下列短文,从每题所给的四个选项中,选出最佳选项,并在答题卡上将该选项涂黑。

AWe are busy talking about and using the Internet, but how many of us know the history of the Internet?Many people are surprised when they find that the Internet was set up in the 1960s。

At that time, computers were large and expensive. Computer network didn't work well. If one computer in the network broke down, then the whole network stopped。

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兰州一中2017-2018学年1学期期中考试 高二英语 说明:本试卷分第I卷(选择题)和第II卷(非选择题)两部分。满分100分,考试时间100分钟。答案写在答题卡上,交卷时只交答题卡。 第I卷(选择题) 第一部分: (共三节,满分50分) 第一节 阅读理解(共10小题,每小题2分,满分20分) A I was waiting for a phone call from my agent. He had left a message the night before, telling me that my show was to be cancelled. I called him several times, but each time his secretary told me that he was in a meeting and that he would call me later. So I waited, but there was still no call. Three hours passing by, I became more and more impatient. I was certain that my agent didn’t care about my work, and he didn’t care about me. I was overcome with that thought. I started to shout at the phone, “Let me wait, will you? Who do you think you are?”At that time I didn’t realize my wife was looking on. Without showing her surprise, she rushed in, seized the phone, tore off the wires, and shouted at the phone, “Yeah! Who do you think you are? Bad telephone! Bad telephone!” And she swept it into the wastebasket. I stood watching her, speechless. What on earth„? She stepped to the doorway and shouted at the rest of the house, “Now hear this! All objects in this room – if you do anything to upset my husband, out you go!” Then she turned to me, kissed me and said calmly, “Honey, you just have to learn how to take control.” With that, she left the room. After watching a crazy woman rushing in and out, shouting at everything in sight, I noticed that something in my mood(情绪) had changed. I was laughing. How would I have trouble with that phone? Her antics helped me realize I had been driven crazy by small things. Twenty minutes later my agent did call. I was able to listen to him and talk to him calmly. 1. Why did the author shout at the telephone? A. He was mad at the telephone. B. He was angry with his agent. C. He was anxious about his wife D. He was impatient with the secretary. 2. What did the author’s wife do after she heard his shouting? A. She said nothing B. She shouted at him. C. She called the agent D. She threw the phone away 3. What made the author laugh? A. His own behavior. B. His wife’s suggestion C. His changeable feelings D. His wife’s sweet kiss. 4. What does the underlined word “antics” refer to? A. Smart words B. Unusual actions C. Surprising Looks D. Anxious feelings B Every kid wishes to be an adult. But now as grown-ups, some adults find they cannot leave childhood behind. They become "kidults" (kid+adult). Being a kidult has become a lifestyle-choice among young people across Asia. Some kidults collect toys they once played with. Hello Kitty, Garfield, and Snoopy have many adult fans around the world. It is not unusual to see a 20-something woman with a big, Garfield-shaped cushion on her sofa or a Hello Kitty mobile phone accessory.(配件) Other kidults still enjoy children's stories and fairy tales. For example, Bloomsbury even published the Harry Potter novels with an adult cover. That way, no one else on the subway will know that an adult is actually reading a children's book! "Kidults can be like vitamins to society. Adults who value their childhood and hold on to pure, child-like emotion may be needed in such a rough and dry society," said Lee Sojung, professor of Foreign Studies at Hankuk University(韩国外国语大学). He added that kidult culture may fill the generation gap between adults and kids. It could give children and their parents books, movies, and cartoon shows to enjoy together. He may be right. Tim Greenhalgh, a professor , explained that some kidults just refuse to grow up. They value childhood because life in a busy and stressful city frightens them. Kidults would like to forget their age and openly show their fear of society and adulthood. 5. We can infer from the article that _________. A. Kidults miss their childhood so much that they can't give up their toys B. Bloomsbury knows some kidults don't want people to know that they are kidults C. Kidults like to have vitamins very much D. Some toys are so interesting that even adults like them very much 6. According to the author, being a kidult is good in some way EXCEPT that _______. A. it can improve the relationship between parents and their kids

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