2017-2018学年甘肃省武威市第六中学高一下学期第三次学段考试(期末)化学(理)试题

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甘肃省武威市第六中学2017_2018学年高一数学下学期第三次学段考试期末试题2018071701118

甘肃省武威市第六中学2017_2018学年高一数学下学期第三次学段考试期末试题2018071701118

甘肃省武威市第六中学学年高一数学下学期第三次学段考试(期末)试题一、选择题(本大题共小题,每小题分,共分,在每小题给出的四个选项中,只有一项是符合题目要求的).0000sin 45cos15cos 45sin165-的值是().2.21 .21- .23- .下列各式中,值为12的是().sin15cos15 .22cos sin 1212ππ-2tan 22.51tan 22.5-.已知、、是共起点的向量,、不共线,且存在、∈使=+成立,若、、的终点共线,则必有().+=.-=.+=.+=-.如图,正方形中,点、分别是、的中点,那么=().+.--.-+.-.已知为△的一个内角,向量=(-,-),=(,+).若⊥,则∠等于().....三个正数、、成等比数列,则、 、 是( ).等比数列 .既是等差又是等比数列.等差数列 .既不是等差又不是等比数列.在△中,=,=,=°,则此三角形解的情况是 ().一解 .两解 .一解或两解 .无解.已知向量(2,3)=a ,(1,2)=-b ,若m n +a b 与2-a b 共线,则n m 等于( ) .2-; .2 .21- .21.为了得到函数x x y 2cos 2sin +=的图像,只需把函数x x y 2cos 2sin -=的图像( ).向左平移4π个长度单位 .向右平移4π个长度单位 .向左平移2π个长度单位 .向右平移2π个长度单位 .在ABC ∆中,2sin sin cos 2A B C =,则ABC ∆的形状是() .等边三角形 .等腰三角形 .直角三角形 .直角三角形.设函数()满足*)(2)(2)1(N n n n f n f ∈+=+,且(),则()( ).一个项数为偶数的等差数列,其奇数项之和为,偶数项之和为,最后一项比第一项大221,则最后一项为 ( ) . . . .以上都不对二、填空题(本大题共小题,每小题分,共分).已知两个单位向量、的夹角为°,=+(-),若·=,则=..在△中,已知a £½,则B c C b cos cos +等于..已知等差数列{}n a 的公差,0<d 若,10,219173=+=a a a a 则使前n 项和0>n S 成立的最大正整数n 是..已知cos 2θ=,则44sin cos θθ+的值为. 三、解答题(本大题共小题,共分.解答应写出文字说明,证明过程或演算步骤).(本小题满分分) 已知0=++c b a ,||a ,||b ,||c . ()求与的夹角; ()是否存在实数,使k +与2-垂直?.(本小题满分分)已知函数()=- .()求()的最小正周期;()求证:当∈时,()≥-..(本小题满分分)如图所示,在山顶铁塔上处测得地面上一点的俯角为α,在塔底处测得处的俯角为β.已知铁塔部分的高为,求山高..(本小题满分分)已知{}是等差数列,{}是等比数列,且=,=,=,=.()求{}的通项公式;()设=+,求数列{}的前项和..(本小题满分分)在△中,角,,的对边分别为,,,向量=((-),(-)),=( ,- ),且·=-.()求的值;()若=,=,求角的大小及向量在方向上的投影..(本小题满分分)已知{}是各项均为正数的等比数列,且+=,=.()求数列{}的通项公式;(){}为各项非零的等差数列,其前项和为,已知+=+,求数列的前项和.高一数学第三次答案一、选择题. . . . . . . . . . .二、填空题 . . 1118三、解答题.解:()由=++,得-=+, 所以||||c b a =+,即22)(c b a =+,则2222c b a b a =∙++, 所以)(21222b a c b a --=∙215,则><b a ,cos ||||b a b a ∙21 所以3,π>=<b a ; ()由于(b a k +)·(b a 2-)k k ∙+∙--22222856--k , 所以1285-时,b a k +与b a 2-垂直. (分) . 解:()=- = + -= + =,所以()的最小正周期==π.()证明 由()知()= .∵∈,∴+∈,∴当+=-,即=-时,()取得最小值-.∴()≥-成立.(分).解:由已知得,∠=°+β,∠=°-α,∠=α-β,∠=β.在△中,由正弦定理得=,即=,∴=α(α-β))=α(α-β)).在△中,=∠=β=αβ(α-β)).故山高为αβ(α-β)). (分) .()设等差数列{}的公差为,等比数列{}的公比为,由得∴=-=-,又==,==-=,∴+(-)=,解得=.∴=+(-)=+(-)×=-(=,,,…).()由()知=-,=-,因此=+=-+-.从而数列{}的前项和=++…+(-)+++…+-=+=+. (分).解:()由·=-,得(-) -(-) =-,所以=-.因为<<π,所以===.()由正弦定理,得)=),则=)==,因为>,所以>,且是△一内角,则=.由余弦定理得()=+-××,解得=,=-舍去,故向量在方向上的投影为==×=.(分)解: ()设{}的公比为,由题意知=,)) 又>,解得所以=.()由题意知:+==(+)+,又+=+,+≠,所以=+.令=,则=,因此=++…+=+++…++,又=+++…++,两式相减得=+-,所以=-.(分).。

甘肃省武威市第六中学2017_2018学年高一物理下学期第三次学段考试期末试题理2018071701119

甘肃省武威市第六中学2017_2018学年高一物理下学期第三次学段考试期末试题理2018071701119

甘肃省武威市第六中学学年高一物理下学期第三次学段考试(期末)试题理(本试卷共页,大题个,小题个。

答案要求写在答题卡上)一、选择题(每题分,共分,其中题为单项选择题,为多项选择题,选对但不全的得分,错选或不选得分).关于能量和能源,下列说法中正确的是 ( ).能量在转化和转移过程中,其总量有可能增加.能量在转化和转移过程中,其总量会不断减少.能量在转化和转移过程中总量保持不变,故节约能源没有必要.能量的转化和转移具有方向性。

且现有可利用的能源有限,故必须节约能源.如图所示,一轻弹簧固定于点,另一端系一重物,将重物从与悬点在同一水平面且弹簧保持原长的点无初速度释放,让它自由摆下。

不计空气阻力,在重物由点摆向最低点的过程中 ( ).重物的重力势能增加 .弹簧的弹性势能不变.重物的机械能减少 .重物和弹簧组成的系统机械能减少.如图所示,一小孩从公园中粗糙的滑梯上自由加速滑下,其能量的变化情况是.重力势能减小,动能不变,机械能减小,总能量减小.重力势能减小,动能增加,机械能减小,总能量不变.重力势能减小,动能增加,机械能增加,总能量增加.重力势能减小,动能增加,机械能守恒,总能量不变.如图所示,小球在竖直放置的光滑圆形管道内做圆周运动,内侧壁半径为,小球半径为,则下列说法正确的是( )...小球在水平线以下的管道中运动时,内侧管壁对小球一定无作用力.小球在水平线以上的管道中运动时,外侧管壁对小球一定有作用力.如图所示,质量分别为和3m 的小球和可视为质点,系在长为的细线两端,水平桌面光滑,高为(<)球无初速度从桌面滑下,落在沙地上静止不动,则球离开桌面时的速度.2gh .gh 2 . 3gh . 6gh .如图所示,固定的竖直光滑长杆上套有质量为的小圆环,圆环与水平状态的轻质弹簧一端连接,弹簧的另一端连接在墙上,且处于原长状态。

现让圆环由静止开始下滑,已知弹簧原长为,圆环下滑到最大距离时弹簧的长度变为2L (未超过弹性限度),则在圆环下滑到最大距离的过程中( ).圆环的机械能守恒..圆环下滑到最大距离时,所受合力为零.圆环重力势能与弹簧弹性势能之和保持不变.如图所示,质量为的小球在竖直光滑圆形轨道内侧做圆周运动,周期为,则:①每运转一周,小球所受重力的冲量的大小为②每运转一周,小球所受重力的冲量的大小为③每运转一周,小球所受合力的冲量的大小为以上结论正确的是( ).①④ .②③ .②③④ .①③④.如图所示,一个木箱原来静止在光滑水平面上,木箱内粗糙的底板上放着一个小木块.木箱和小木块都具有一定的质量,现使木箱获得一个向右的初速度,则( ).小木块和木箱最终都将静止.小木块最终将相对木箱静止,二者一起向右运动.小木块在木箱内壁将始终来回往复碰撞,而木箱一直向右运动.如果小木块与木箱的左壁碰撞后相对木箱静止,则二者将一起向左运动.质量为的物体置于倾角为α的斜面上,物体和斜面间的动摩擦因数为μ,在外力作用下斜面以加速度向左做匀加速直线运动,如图7-1-16所示,运动过程中物体与斜面之间保持相对静止,则下列说法正确的是( ).斜面对物体的支持力一定做正功.斜面对物体的摩擦力一定做正功 .斜面对物体的摩擦力可能不做功 .斜面对物体的摩擦力可能做负功.光滑水平地面上,、两物体质量都为,以速度向右运动,原来静止,左端有一轻弹簧,如图所示,当撞上轻弹簧,轻弹簧被压缩到最短时,下列说法正确的是、系统总动量仍然为的动量变为零的动量达到最大值、的速度相等.如图所示,一粗糙的四分之一圆弧轨道,半径为,轨道圆心与点等高。

甘肃省武威市第六中学最新高一物理下学期第三次学段考试试题

甘肃省武威市第六中学最新高一物理下学期第三次学段考试试题

武威六中2018—2019学年度第二学期第三次学段考试高一物理试卷一、选择题(共56分,每题4分,1—10为单选,11—14为单选,漏选得2分,错选不得分)1.下列说法正确的是( )A. 卡文迪许为了检验万有引力定律的正确性,首次进行了“月—地检验”B。

 系统内一对相互作用的滑动摩擦力做功的代数和一定为负值C. 物体做匀速圆周运动时,合外力做功为零,动量不变D. 开普勒通过深入研究第谷的数据提出了万有引力定律2。

下列说法正确的是( )A.做曲线运动的物体的合力一定是变化的ﻩB。

两匀变速直线运动的合运动一定是曲线运动ﻩC。

做平抛运动的物体在相同的时间内速度的变化是不同的D.做匀速圆周运动的物体的加速度大小恒定,方向始终指向圆心3。

在同一高度以不同的初速度水平抛出质量相等的两小球,不计空气阻力,则有( ) A. 两小球落地时间不同 B. 重力对两小球做功的平均功率相同C. 两小球落地前一瞬间的动能相同 D. 两小球总是落在水平面上的同一点4.2012年6月24日12时55分,航天员刘旺驾神舟再会天宫,这是中国人第一次在太空手控交会对接,“天宫一号”和“神舟九号”绕地球做匀速圆周运动的示意图如图所示,A代表“天宫一号",B代表“神舟八号",虚线为各自的轨道。

由图,可以判定( )A.“天宫一号”的运行速率大于“神舟九号"的运行速率B。

“天宫一号”的周期小于“神舟九号”的周期C .“天宫一号”的向心加速度大于“神舟九号”的向心加速度D.“神舟九号”适度加速有可能与“天宫一号"实现对接5.汽车以恒定功率P由静止开始在水平路面上启动,其所受阻力大小恒为f ,经过时间t,汽车的运动速度1v 刚好满足1P fv ,在此过程中( )A 。

汽车做匀加速直线运动 B.汽车牵引力做功为2112mv C.汽车牵引力做功为Pt D.汽车最终做匀速运动时的速度大小大于1v 6.一物体做直线运动的v —t 图象如图所示,下列判断正确的是( )A 。

甘肃武威第六中学高一下学期第三次学段(期末)英语含答案

甘肃武威第六中学高一下学期第三次学段(期末)英语含答案

武威六中2017-2018学年度第二学期高一英语《必修4》第三次终结性检测试卷(本试卷共4页,分Ⅰ、Ⅱ卷,答案要求写在答题卡上)第Ⅰ卷第一部分阅读理解(共两节,满分40分)第一节(共15小题:每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中选出最佳选项,并在答题卡上将该项涂黑。

ABefore traveling around the world, take some time and find out what sightseeing destinations are. Some of those spots that most guides mention are the following thrilling attractions.Victoria FallsVictoria Falls has always been considered to be an incredible place worth taking pictures of. There are a lot of spots that tourists love. Some of them are very dangerous for people. Yet the brave are ready to overcome their fear for a shot of lifetime.Arctic Cliff FaceCliff does not make the most comfortable place for camping. Being camped on the ground is far safer anyway. Despite all the inconvenience, the new trend is rapidlygaining popularity among climbing enthusiasts and outdoor addicts.Auckland’s Sky TowerAuckland’s Sky Tower is popular with bungee jumpers. Some celebrities, such as Beyonce, have already tried it, which proves that the place is not only safe but popular as well. The tower is 630 feet Call. At the top of the structure there is an observation deck. Trust us, most of those reading this article would prefer to stay on the ground rather than climb up this scary structure.North Yung as RoadThe Road of Death is the right name given to a road in Bolivia. Hundreds of peopledie here every year. The major cause of all those accidents is the road. The problem is that it is too narrow and badly maintained while here the traffic is heavier than anywhere else. Nevertheless, it seems like tourists will continue visiting this strange road despite its scary nickname.1. What is Victoria Falls famous for?A. Its narrow and badly maintained roadB.Its thrillingcampingC. Its dangerous but attractive spots for taking picturesD. Its scary structure2. North Yung as Road is called “the Road of Death” because.A. there is no necessary protection equipmentB. each year many people lose their lives thereC. it is built on the edge of the rockD. the traffic is the heaviest3. If you like bungee, you can go to .A. Victoria FallsB. Arctic Cliff FaceC. Auckland’ Sky TowerD.North Yung as Road4. What do the four places have in common?A. They are popular with climbers.B. They are a bit life-threatening.C. They all have beautiful scenery.D. They have been visited bycelebrities.BWhen I woke up, I made myself breakfast, sat and listened to the traffic. Some of my friends ask me how I can stand living somewhere so noisy. It’s true that there’s always some kind of noise in my neighborhood, but to me, these are the sounds of life.It was Saturday morning, so I decided to go to the park. The taxi is the fastest way to go but I took the bus instead.When you ride the bus, you get to see so much more of the city. It can be kind of loud on the bus, with some people talking on their phones, others chatting with their friends, and others playing music. It’s just like the traffic’s sounds, thou gh the noise on the bus represents people working, relaxing and living.Once I got to the park, I picked a bench over near the play area where kids play while their parents sit nearby. I can see and hear almost everything from there. People-watching is one of my favorite things to do. However, I like listening even better. The only problem is that there’s so much to see and hear in the park!Usually, I like to close my eyes. That way, I can pay more attention to the sounds and not get distracted by what I see. With my eyes closed, I could pick out parts of two old men’s conversation. One of them was telling the other about something his grandson said. I couldn’t hear the rest, but it must have been hilarious because his friend’s laugh was so loud.When I’m o ld, I hope that I too will have a friend who will sit in the park with me, and who will enjoy listening to the sounds of the city as much as I do.5. Some of the author’s friends think “the sounds of life” are very_____.A. magicalB. unpleasantC. uniqueD. interesting6. The author took the bus to the park because________.A. it was the most convenient wayB. his friend advised him to do soC. there was no other transport to go thereD. he wanted to see more aboutpeople’s life7. The author closed his eyes in order to________.A. avoid talking with the two old menB. enjoy the sounds of lifeC. hide himself from viewD. have a good rest8. The underlined word “hilarious” in Paragraph 5 probably means“________”.A. quite popularB. truly differentC. extremely funnyD. rather strangeCIs there anything more important than health? I don't think so. "Health is the greatest wealth." wise people say. You can't be good at your studies or work well when you are ill.If you have a headache, toothache, backache, earache or bad pain in the stomach, if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor’s. The doctor will examine your throat, feel your pulse, test your blood pressure, takeyour temperature, sound your heart and lungs, test your eyes, check your teeth or have your chest X-rayed. After that he will advise some treatment, or some medicine. The only thing you have to do is to follow his advice.Speaking about doctor's advice, I can't help telling you a funny story. An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease. He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule:"Eat with pleasure, drink with pleasure and enjoy life as it is." The doctor also said that if the man wanted to be well again, he shouldn't smoke more than one cigarette a day. A month later the gentleman came into the doctor's office. He looked cheerful and happy. He thanked the doctor and said that he had never felt a healthier man. "But you know, doctor," he said, "it's not easy to begin smoking at my age."9. The writer thinks that _____.A. work is as important as studiesB. health is more importantthan wealthC. medicine is more important than pleasureD. nothing is more important thanmoney10. The doctor usually tells his patient what to do _____.A. without examining the patientB. after he has examined the patientC. if the patient doesn't take medicineD. unless the patient feels pain11. The underlined part means "_____".A. he will be well againB. he wasn't a healthy manC. he was feeling worse than beforeD. he was feeling better than ever12. From the last sentence of the passage, we learn the man _____ before the doctor told him not to smoke more than one cigarette a day.A. was a heavy smokerB. didn't smoke so muchC. didn't smokeD. began to learn to smokeDMany Chinese students who have learnt English for more than ten years are still unable to speak English very well when they meet a foreigner. They seem to have mastered the basic language structure(结构), but a conversation in English will make them feel uneasy. They are afraid that other people might find out their mistakes.It's uncommon that many students who are bad speakers of English can write English perfectly. This proves that they are unable to organize their idea in English. The center of the problem is that they lack practice and confidence (自信).Why should you be afraid? Do you fear those foreigners with whom you are speaking? Don't be shy, they will not laugh at you just for a little mistake you make. The best way to get rid of trouble is to learn to speak by speaking more. I am sure that constant (持续的)practice will help you succeed.13. What's the best topic for the passage?A. How to Speak to ForeignersB. How to Study English WellC. How to Organize the Idea in EnglishD. Practise Speaking English All the Time14. Many Chinese students can write English very well, but they cannot speak English fluently because ________A. they seldom meet foreignersB. they seldom practise speaking EnglishC. they had no chance to speak EnglishD. they think it's enough to master the basic language structure only15. So many Chinese students are afraid speak to foreigners becauseA. they are afraid they can't understand foreignersB. they don't think their English is poorC. they worry about making mistakes in their speakingD. they didn't tike speaking to foreigners第二节(共5小题;每小题2分,满分10 分)(7选5题)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。

甘肃省武威市第六中学2017-2018学年高一第二学期第三次学段考试(期末)物理试卷理

甘肃省武威市第六中学2017-2018学年高一第二学期第三次学段考试(期末)物理试卷理

甘肃省武威市第六中学2017-2018学年高一物理下学期第三次学段考试(期末)试题理(本试卷共2页,大题3个,小题16个。

答案要求写在答题卡上)一、选择题(每题4分,共48分,其中1-8题为单项选择题,9-12为多项选择题,选对但不全的得2分,错选或不选得0分)1.关于能量和能源,下列说法中正确的是 ( )A.能量在转化和转移过程中,其总量有可能增加B.能量在转化和转移过程中,其总量会不断减少C.能量在转化和转移过程中总量保持不变,故节约能源没有必要D.能量的转化和转移具有方向性。

且现有可利用的能源有限,故必须节约能源2.如图所示,一轻弹簧固定于O点,另一端系一重物,将重物从与悬点O在同一水平面且弹簧保持原长的A点无初速度释放,让它自由摆下。

不计空气阻力,在重物由A点摆向最低点B的过程中 ( )A.重物的重力势能增加B.弹簧的弹性势能不变C.重物的机械能减少D.重物和弹簧组成的系统机械能减少3.如图所示,一小孩从公园中粗糙的滑梯上自由加速滑下,其能量的变化情况是A.重力势能减小,动能不变,机械能减小,总能量减小B.重力势能减小,动能增加,机械能减小,总能量不变C.重力势能减小,动能增加,机械能增加,总能量增加D.重力势能减小,动能增加,机械能守恒,总能量不变4.如图所示,小球在竖直放置的光滑圆形管道内做圆周运动,内侧壁半径为R,小球半径为r,则下列说法正确的是( )A.小球通过最高点时的最小速度v minB.小球通过最低点时的最小速度v minC.小球在水平线ab以下的管道中运动时,内侧管壁对小球一定无作用力D.小球在水平线ab以上的管道中运动时,外侧管壁对小球一定有作用力5.如图所示,质量分别为m 和3m 的小球A 和B 可视为质点,系在长为L 的细线两端,水平桌面光滑,高为h (h <L ).A 球无初速度从桌面滑下,落在沙地上静止不动,则B 球离开桌面时的速度 A.2gh B.gh 2 C. 3gh D. 6gh 6.如图所示,固定的竖直光滑长杆上套有质量为m 的小圆环,圆环与水平状态的轻质弹簧一端连接,弹簧的另一端连接在墙上,且处于原长状态。

甘肃省武威市第六中学高一历史下学期第三次学段考试(期末)试题 文

甘肃省武威市第六中学高一历史下学期第三次学段考试(期末)试题 文

甘肃省武威市第六中学2017-2018学年高一历史下学期第三次学段考试(期末)试题文注意事项:1.答题前填写好自己的姓名、班级、考号等信息2.请将答案正确填写在答题卡上第I卷(选择题,共60分)一、选择题(本题共30小题,每小题2分,共60分,在每小题给出的四个选项中只有一个选项是符合题意的)1.在我国古代,“社稷”是国家的代称。

其中,“社”指土地之神,“稷”指主管五谷之神。

关于国家的这种理解,反映了我国古代A.非常重视祭祀 B.以农业为立国之本C.农业与土地的关系 D.小农经济的特点2.“大街小巷叫卖食品杂务的小贩‘吟叫百端’,大小商店铺席连绵不断,夜市直至三更尽,五更又开晓市。

”上述历史现象最早出现于A.西汉长安B.唐朝洛阳C.北宋开封D.南宋临安3.鸦片战争前夕,清政府实行的闭关锁国政策的含义是A. 严格限制对外交往B. 禁绝中国对外贸易C.一概排斥西方事物D.封闭边界、固守疆域4.1522年9月6日,西班牙国王举行褒奖仪式,特地制作了一个地球仪赠给远航归来的勇士,他说:“你们第一个拥抱了地球。

”以下属于这次远航经历的是A.第一次横跨大西洋到达美洲B.第一次到达非洲最南端C.第一次经印度洋到达印度D.第一次完成环球航行5.马克思说:“它创立了巨大的城市,使城市人口比农村人口大大增加起来,因而使很大一部分居民脱离了农村生活的愚昧状态。

”“巨大的城市”的形成,主要基于A. 商业革命,贸易中心转移B. 农民失去土地,被迫流向城市C. 工业革命,生产力巨大发展D. 资产阶级政治统治地位的确立6.从三聚氰胺事件的重击、瘦肉精事件的炸雷、上海染色馒头的喧闹,到塑化剂事件的刺激,食品安全问题已然成为国人心中挥之不去的梦魇。

而这一系列食品安全问题的出现,背后都有化学添加剂的阴影。

这类因化学工业的发展而导致的问题最早出现可以追溯到A.新航路开辟B.第一次工业革命C.第二次工业革命D.第三次科技革命7.20世纪初,民国政府颁布了大量发展实业的法律、法规,如《公司条例》《商人条例》《矿业条例》等,这种做法A. 有利于保障民族资本主义的合法地位B. 有效遏制了外国资本主义对中国的侵略C. 奠定了近代中国民族工业发展的基础D. 促使资本主义经济成为中国经济的主体8.史学家费正清教授把“一战”期间中国民族工业的发展称为“没有前途的经济奇迹”。

2017-2018学年甘肃省武威市第六中学高一下学期第三次学段考试(期末)英语试题

2017-2018学年甘肃省武威市第六中学高一下学期第三次学段考试(期末)英语试题

2017-2018学年甘肃省武威市第六中学高一下学期第三次学段考试(期末)英语试题第Ⅰ卷第一部分阅读理解(共两节,满分40分)第一节(共15小题:每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中选出最佳选项,并在答题卡上将该项涂黑。

ABefore traveling around the world, take some time and find out what sightseeing destinations are. Some of those spots that most guides mention are the following thrilling attractions.Victoria FallsVictoria Falls has always been considered to be an incredible place worth taking pictures of. There are a lot of spots that tourists love. Some of them are very dangerous for people. Yet the brave are ready to overcome their fear for a shot of lifetime.Arctic Cliff FaceCliff does not make the most comfortable place for camping. Being camped on the ground is far safer anyway. Despite all the inconvenience, the new trend is rapidly gaining popularity among climbing enthusiasts and outdoor addicts.Auckland’s Sky TowerAuckland’s Sky Tower is popular with bungee jumpers. Some celebrities, such as Beyonce, have already tried it, which proves that the place is not only safe but popular as well. The tower is 630 feet Call. At the top of the structure there is an observation deck. Trust us, most of those reading this article would prefer to stay on the ground rather than climb up this scary structure.North Yung as RoadThe Road of Death is the right name given to a road in Bolivia. Hundreds of people die here every year. The major cause of all those accidents is the road. The problem is that it is too narrow and badly maintained while here the traffic is heavier than anywhere else. Nevertheless, it seems like tourists will continue visiting this strange road despite its scary nickname.1. What is Victoria Falls famous for?A. Its narrow and badly maintained roadB.Its thrilling campingC. Its dangerous but attractive spots for taking picturesD. Its scary structure2. North Yung as Road is called “the Road of Death” because.A. there is no necessary protection equipmentB. each year many people lose their lives thereC. it is built on the edge of the rockD. the traffic is the heaviest3. If you like bungee, you can go to .A. Victoria FallsB. Arctic Cliff FaceC. Auckland’ Sky TowerD.North Yung as Road4. What do the four places have in common?A. They are popular with climbers.B. They are a bit life-threatening.C. They all have beautiful scenery.D. They have been visited by celebrities.BWhen I woke up, I made myself breakfast, sat and listened to the traffic. Some of my friends ask me how I can stand living somewhere so noisy. It’s true that there’s always some kind of noise in my neighborhood, but to me, these are the sounds of life.It was Saturday morning, so I decided to go to the park. The taxi is the fastest way to go but I took the bus instead.When you ride the bus, you get to see so much more of the city. It can be kindof loud on the bus, with some people talking on their phones, others chatting with their friends, and others playing music. It’s just like the traffic’s sounds, though the noise on the bus represents people working, relaxing and living.Once I got to the park, I picked a bench over near the play area where kids play while their parents sit nearby. I can see and hear almost everything from there. People-watching is one of my favorite things to do. However, I like listening even better. The only problem is that there’s so much to see and hear in the park!Usually, I like to close my eyes. That way, I can pay more attention to the sounds and not get distracted by what I see. With my eyes closed, I could pick out parts of two old men’s conversation. One of them was telling the other about something his grandson said. I couldn’t hear the rest, but it must have been hilarious because his friend’s laugh was so loud.When I’m old, I hope that I too will have a friend who will sit in the park with me, and who will enjoy listening to the sounds of the city as much as I do.5. Some of the author’s friends think “the sounds of life” are very_____.A. magicalB. unpleasantC. uniqueD. interesting6. The author took the bus to the park because________.A. it was the most convenient wayB. his friend advised him to do soC. there was no other transport to go thereD. he wanted to see more about people’s life7. The author closed his eyes in order to________.A. avoid talking with the two old menB. enjoy the sounds of lifeC. hide himself from viewD. have a good rest8. The underlined word “hilarious” in Paragraph 5 probably means“________”.A. quite popularB. truly differentC. extremely funnyD. rather strangeCIs there anything more important than health? I don't think so. "Health is the greatest wealth." wise people say. You can't be good at your studies or work well when you are ill.If you have a headache, toothache, backache, earache or bad pain in the stomach,if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor’s. The doctor will examine your throat, feel your pulse, test your blood pressure, take your temperature, sound your heart and lungs, test your eyes, check your teeth or have your chest X-rayed. After that he will advise some treatment, or some medicine. The only thing you have to do is to follow his advice.Speaking about doctor's advice, I can't help telling you a funny story. An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease. He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule:"Eat with pleasure, drink with pleasure and enjoy life as it is." The doctor also said that if the man wanted to be well again, he shouldn't smoke more than one cigarette a day. A month later the gentleman came into the doctor's office. He looked cheerful and happy. He thanked the doctor and said that he had never felt a healthier man. "But you know, doctor," he said, "it's not easy to begin smoking at my age."9. The writer thinks that _____.A. work is as important as studiesB. health is more important than wealthC. medicine is more important than pleasureD. nothing is more important than money10. The doctor usually tells his patient what to do _____.A. without examining the patientB. after he has examined the patientC. if the patient doesn't take medicineD. unless the patient feels pain11. The underlined part means "_____".A. he will be well againB. he wasn't a healthy manC. he was feeling worse than beforeD. he was feeling better than ever12. From the last sentence of the passage, we learn the man _____ before the doctortold him not to smoke more than one cigarette a day.A. was a heavy smokerB. didn't smoke so muchC. didn't smokeD. began to learn to smokeDMany Chinese students who have learnt English for more than ten years are still unable to speak English very well when they meet a foreigner. They seem to have mastered the basic language structure(结构), but a conversation in English will make them feel uneasy. They are afraid that other people might find out their mistakes. It's uncommon that many students who are bad speakers of English can write English perfectly. This proves that they are unable to organize their idea in English. The center of the problem is that they lack practice and confidence (自信).Why should you be afraid? Do you fear those foreigners with whom you are speaking? Don't be shy, they will not laugh at you just for a little mistake you make. The best way to get rid of trouble is to learn to speak by speaking more. I am sure that constant (持续的)practice will help you succeed.13. What's the best topic for the passage?A. How to Speak to ForeignersB. How to Study English WellC. How to Organize the Idea in EnglishD. Practise Speaking English All the Time14. Many Chinese students can write English very well, but they cannot speak English fluently because ________A. they seldom meet foreignersB. they seldom practise speaking EnglishC. they had no chance to speak EnglishD. they think it's enough to master the basic language structure only15. So many Chinese students are afraid speak to foreigners becauseA. they are afraid they can't understand foreignersB. they don't think their English is poorC. they worry about making mistakes in their speakingD. they didn't tike speaking to foreigners第二节(共5小题;每小题2分,满分10 分)(7选5题)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。

甘肃省武威市第六中学高一物理下学期第三次学段考试(期末)试题文(2021年整理)

甘肃省武威市第六中学高一物理下学期第三次学段考试(期末)试题文(2021年整理)

末)试题文编辑整理: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(甘肃省武威市第六中学2017-2018学年高一物理下学期第三次学段考试(期末)试题文)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,以下为甘肃省武威市第六中学2017-2018学年高一物理下学期第三次学段考试(期末)试题文的全部内容。

(期末)试题文一、选择题:本题共8小题,每小题6分,共48分.在每小题给出的四个选项中,第1—6题只有一项符合题目要求,第7—8题有多项符合题目要求。

全部选对的得6分,选对但不全的得4分,有选错的得0分。

题号12345678答案1.一物体质量为1kg,速度为10m/s,它的动能是()A.5JB.50J C。

10J D。

100J2.一个运动物体的速度是v时,其动能为E,那么,当它的速度增加到2v时,其动能应该是( )A.4EB.2E C。

E D。

8E3.如图所示,一轻弹簧固定于O点,另一端系一重物,将重物从与悬点O在同一水平面且弹簧保持原长的A点无初速度释放,让它自由摆下。

不计空气阻力,在重物由A点摆向最低点B 的过程中()A。

重物的重力势能增加B。

弹簧的弹性势能不变C。

重物的机械能减少D.重物和弹簧组成的系统机械能减少4.在下列情况中,物体机械能守恒的是( )A.物体沿斜面匀速滑下B.降落伞在空中匀速下降C。

不计空气阻力,斜向上抛出的物体在空中运动的过程中D。

起重机吊着重物加速上升5.下列说法中正确的是( )A.随着科技的发展,永动机是可以制成的B。

某种形式的能量减少,一定有其他形式的能量增加C.能量耗散表明,在能量的转化过程中能的总量逐渐减少D.不用电池、也不用上发条的“全自动”手表,说明能量可以凭空产生6.关于功和能,下列说法正确的是()A.功是能量的量度B。

【配套K12】[学习]甘肃省武威市第六中学2017-2018学年高一语文下学期第三次学段考试(期末)

【配套K12】[学习]甘肃省武威市第六中学2017-2018学年高一语文下学期第三次学段考试(期末)

甘肃省武威市第六中学2017-2018学年高一语文下学期第三次学段考试(期末)试题(本试卷共6页,大题4个,小题22个。

答案要求写在答题卡上。

)第Ⅰ卷阅读题(70分)一、现代文阅读(共35分)(一)论述类文本阅读(每小题3分,共9分)阅读下面的文字,完成1~3题。

读书其实是一种“遇见”。

打开书本的刹那,就开启了一扇去往不同时空的大门,碰见各种各样的人,听说形形色色的事,接触不同年代留下来的思想菁华。

如果说,“遇见”是读书与生俱来的产物,那么,选择怎样的“遇见”,读书人理应有属于自己的主动权。

苏东坡说得好:“书富如入海,百货皆有。

人之精力,不能兼收尽取,但得其所欲求者尔。

”那么,什么才是“所欲求者”?我想,除了要选择那些契合自己的兴趣爱好和功课长进的书籍外,关键一定要按优中选优、精中选精的原则,去选读那些经受过时间和一代又一代读者淘洗的经典。

须知,读一本经典抵得上读几十本、上百本普通之书。

而对于那些平庸的书籍,我们还是少读或者不读为妙。

那样的“遇见”,只是重复,只会无端损耗你去选择读一本经典的时间和精力,因此太不值得。

交朋友要交五湖四海的朋友,读书当然也是“遇见”的人和事越多越好,读书面越广越好。

读报看到一个材料:在当年的西南联大,许多教授在读书方面都是学贯中西,打通文理。

因此,吴宓、陈岱孙、金岳霖、贺麟等能用中国话语、中国文化娴熟诠释西学;冯至讲《浮士德》时,可以用“天行健:君子以自强不息”来诠释《浮士德》“一个越来越高尚越纯洁的努力,直到死亡”的主题。

一些从事自然科学研究的教授,也有深厚的传统文化学识。

物理学教授王竹溪编写《新部首大字典》,在语言学界颇有影响;化学系教授黄子卿工于书法,热爱旧体诗,时常与文学教授游国恩探讨诗歌;年轻的数学家华罗庚则对散曲充满热爱……读书的“遇见”,又并非不动脑筋地匆匆而过,而是一种主观能动的行为。

换言之,一定要避免人云亦云的做法,要“运用脑髓,放出眼光”,善于从无疑处读出有疑。

甘肃省武威市第六中学高一化学下学期第三次学段考试(期末)试题 文

甘肃省武威市第六中学高一化学下学期第三次学段考试(期末)试题 文

甘肃省武威市第六中学2017-2018学年高一化学下学期第三次学段考试(期末)试题文第Ⅰ卷(选择题共48分)一、单选题(每小题3分,共48分)1.下列说法中正确的是()A.物质发生化学反应时都伴随着能量变化,伴随能量变化的变化一定是化学变化B.需要加热的化学反应一定是吸热反应,不需要加热就能进行的反应一定是放热反应C.等质量的硫蒸气和硫固体分别完全燃烧,前者放出的热量多D.因为3O2===2O3是吸热反应,所以臭氧比氧气更稳定2.碳的一种同位素可用于考古断代。

下列关于说法正确的是()A. 质子数为14B. 中子数为8C. 质量数为6D. 核外电子数为83.X、Y、Z、W、Q五种短周期元素在元素周期表中的位置如图所示,其中X元素原子的最外层电子数是最内层电子数的3倍,则下列说法一定正确的是()A. X、W能分别与钠形成摩尔质量相同的化合物B. X和Z只能形成一种离子化合物C. 氧化物对应的水化物酸性:W<QD. 原子半径大小关系:Q>W>Z>Y4.下列物质性质变化规律正确的是()A. O、F、H的原子半径依次减小B. HI、HBr、HCl、HF的沸点依次降低C. 干冰、钠、冰的熔点依次降低D. 金属Na、Mg、Al的硬度依次降低5.如表实验不能达到预期实验目的是()A. AB. BC. CD. D6.下列关于石油的说法正确的是()A.液化石油气、天然气都是可再生能源B.石油主要含有碳、氢两种元素C.石油的裂化和裂解都属于物理变化D.石油分馏出的各馏分均是纯净物I可用于治疗甲亢,这里的“53”是指该原子的()7.12753A. 质子数B. 中子数C. 质量数D. 原子数8.下列过程中,共价键被破坏的是()A. 碘升华B. 冰融化成水C. 葡萄糖溶于水D. HCl气体溶于水9.取一小段镁带,用砂纸除去表面的氧化膜,放入试管中。

向试管中加入2mL水,并滴入2滴酚酞试液。

一会儿后发现镁带表面有气泡放出,且镁带附近溶液变红色。

甘肃省武威市第六中学2017_2018学年高一历史下学期第三次学段考试期末试题理2018071701

甘肃省武威市第六中学2017_2018学年高一历史下学期第三次学段考试期末试题理2018071701

甘肃省武威市第六中学2017-2018学年高一历史下学期第三次学段考试(期末)试题理一、单项选择题:在每小题列出的四个选项中,只有一项是最符合题目要求的(本大题20小题,每小题3分,共60分)1. “青胚勾勒出青花笔锋浓转淡,瓶身描绘的牡丹一如你初妆,冉冉檀香透过窗心事我了然,宣纸上走笔至此搁一半。

”周杰伦所唱的这首歌曲,其歌词反映了明代宣德年间出产的一种瓷器珍品,它是: ( )A.五彩瓷B.唐三彩C.青花瓷D.珐琅彩2. “它扩展了人类活动的范围,海洋在人类文明中的地位迅速上升,世界的人种地理分布、宗教与文化格局开始发生重大变化”。

造成这种重大影响的历史事件是: ( )A.新航路的开辟 B.郑和下西洋 C.丝绸之路开通 D. 经济全球化趋势3.鸦片战争后,中国的自然经济逐渐解体,这种“解体”主要是指()A.中国资本主义产生了B.中国逐渐成为世界资本主义的附庸了C.农业和家庭手工业逐渐分离且日益商品化D.自然经济被资本主义经济取而代之了4.十一届三中全会后率先进行经济体制改革的是()A.农村B.城市C.沿海D.内地5.中国近代社会生活变化最大的城市是()A.济南B.广州C.武汉D.上海6.中国人自己摄制的第一部电影是 ( )A.《定军山》 B.《一江春水向东流》 C.《渔光曲》 D.《三毛流浪记》7.1929——1933年,美、德、英、法、日等国的工业生产分别下降了46.2%、40.6% 、28.5%、16.5%、8.4% 。

为克服危机,恢复工业生产,美国政府()A.采取自由放任的经济政策B.开创国家全面干预经济的模式C.走上法西斯道路D.建立布雷顿森林体系8.为缩小贫富差距,缓和社会矛盾,西方主要资本主义国家采取的政策是()A.国家干预经济B.福利国家政策C.自由放任D.新经济9.1920年,苏俄农民中流传这样的说法:“土地属于我们,面包却属于你们;水属于我们,鱼却属于你们;森林属于我们,木材却属于你们。

高一英语下学期第三次学段考试期末试题

高一英语下学期第三次学段考试期末试题

甘肃省武威市第六中学2017-2018学年高一英语下学期第三次学段考试(期末)试题(本试卷共4页,分Ⅰ、Ⅱ卷,答案要求写在答题卡上)第Ⅰ卷第一部分阅读理解(共两节,满分40分)第一节(共15小题:每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中选出最佳选项,并在答题卡上将该项涂黑。

ABefore traveling around the world, take some time and find out what sightseeing destinations are. Some of those spots that most guides mention are the following thrilling attractions.Victoria FallsVictoria Falls has always been considered to be an incredible place worth taking pictures of. There are a lot of spots that tourists love. Some of them are very dangerous for people. Yet the brave are ready to overcome their fear for a shot of lifetime.Arctic Cliff FaceCliff does not make the most comfortable place for camping. Being camped on the ground is far safer anyway. Despite all the inconvenience, the new trend is rapidly gaining popularity among climbing enthusiasts and outdoor addicts.Auckland’s SkyTowerAuckland’s SkyTower is popular with bungee jumpers. Some celebrities, such as Beyonce, have already tried it, which proves that the place is not only safe but popular as well. The tower is 630 feet Call. At the top of the structure there is an observation deck. Trust us, most of those reading this article would prefer to stay on the ground rather than climb up this scary structure.North Yung as RoadThe Road of Death is the right name given to a road in Bolivia. Hundreds of people die here every year. The major cause of all those accidents is the road. The problem is that it is too narrow and badly maintained while here the traffic is heavier than anywhere else. Nevertheless, it seems like tourists will continue visiting this strange road despite its scary nickname.1. What is Victoria Falls famous for?A. Its narrow and badly maintained roadB.Its thrilling campingC. Its dangerous but attractive spots for taking picturesD. Its scary structure2. North Yung as Road is called “the Road of Death” because.A. there is no necessary protection equipmentB. each year many people lose their lives thereC. it is built on the edge of the rockD. the traffic is the heaviest3. If you like bungee, you can go to .A. Victoria FallsB. Arctic Cliff FaceC. Auckland’ SkyTowerD.North Yung as Road4. What do the four places have in common?A. They are popular with climbers.B. They are a bit life-threatening.C. They all have beautiful scenery.D. They have been visited by celebrities.BWhen I woke up, I made myself breakfast, sat and listened to the traffic. Some of my friends ask me how I can stand living somewhere so noisy. It’s true that there’s always some kind of noise in my neighborhood, but to me, these are the sounds of life.It was Saturday morning, so I decided to go to the park. The taxi is the fastest way to go but I took the bus instead.When you ride the bus, you get to see so much more of the city. It can be kind of loud on the bus, with some people talking on their phones, others chatting with their friends, and others playing music. It’s just like the traffic’s sounds, though the noise on the bus represents people working, relaxing and living.Once I got to the park, I picked a bench over near the play area where kids playwhile their parents sit nearby. I can see and hear almost everything from there. People-watching is one of my favorite things to do. However, I like listening even better. The only problem is that there’s so much to see and hear in the park!Usually, I like to close my eyes. That way, I can pay more attention to the sounds and not get distracted by what I see. With my eyes closed, I could pick out parts of two old men’s conversation. One of them was telling the other about something his grandson said. I couldn’t hear the rest, but it must have been hilarious because his friend’s laugh was so loud.When I’m old, I hope that I too will have a friend who will sit in the park with me, and who will enjoy listening to the sounds of the city as much as I do.5. Some of the author’s friends think “the sounds of life” are very_____.A. magicalB. unpleasantC. uniqueD. interesting6. The author took the bus to the park because________.A. it was the most convenient wayB. his friend advised him to do soC. there was no other transport to go thereD. he wanted to see more aboutpeople’s life7. The author closed his eyes in order to________.A. avoid talking with the two old menB. enjoy the sounds of lifeC. hide himself from viewD. have a good rest8. The underlined word “hilarious” in Paragraph 5 probably means“________”.A. quite popularB. truly differentC. extremely funnyD. rather strangeCIs there anything more important than health? I don't think so. "Health is the greatest wealth." wise people say. You can't be good at your studies or work well when you are ill.If you have a headache, toothache, backache, earache or bad pain in the stomach, if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor’s. The doctor will examine your throat, feel your pulse, test your blood pressure, take your temperature, sound your heart and lungs, test your eyes, check your teeth orhave your chest X-rayed. After that he will advise some treatment, or some medicine. The only thing you have to do is to follow his advice.Speaking about doctor's advice, I can't help telling you a funny story. An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease. He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule:"Eat with pleasure, drink with pleasure and enjoy life as it is." The doctor also said that if the man wanted to be well again, he shouldn't smoke more than one cigarette a day. A month later the gentleman came into the doctor's office. He looked cheerful and happy. He thanked the doctor and said that he had never felt a healthier man. "But you know, doctor," he said, "it's not easy to begin smoking at my age."9. The writer thinks that _____.A. work is as important as studiesB. health is more important than wealthC. medicine is more important than pleasureD. nothing is more important than money10. The doctor usually tells his patient what to do _____.A. without examining the patientB. after he has examined the patientC. if the patient doesn't take medicineD. unless the patient feels pain11. The underlined part means "_____".A. he will be well againB. he wasn't a healthy manC. he was feeling worse than beforeD. he was feeling better than ever12. From the last sentence of the passage, we learn the man _____ before the doctor told him not to smoke more than one cigarette a day.A. was a heavy smokerB. didn't smoke so muchC. didn't smokeD. began to learn to smokeDMany Chinese students who have learnt English for more than ten years are still unable to speak English very well when they meet a foreigner. They seem to havemastered the basic language structure(结构), but a conversation in English will make them feel uneasy. They are afraid that other people might find out their mistakes. It's uncommon that many students who are bad speakers of English can write English perfectly. This proves that they are unable to organize their idea in English. The center of the problem is that they lack practice and confidence (自信).Why should you be afraid? Do you fear those foreigners with whom you are speaking? Don't be shy, they will not laugh at you just for a little mistake you make. The best way to get rid of trouble is to learn to speak by speaking more. I am sure that constant (持续的)practice will help you succeed.13. What's the best topic for the passage?A. How to Speak to ForeignersB. How to Study English WellC. How to Organize the Idea in EnglishD. Practise Speaking English All the Time14. Many Chinese students can write English very well, but they cannot speak English fluently because ________A. they seldom meet foreignersB. they seldom practise speaking EnglishC. they had no chance to speak EnglishD. they think it's enough to master the basic language structure only15. So many Chinese students are afraid speak to foreigners becauseA. they are afraid they can't understand foreignersB. they don't think their English is poorC. they worry about making mistakes in their speakingD. they didn't tike speaking to foreigners第二节(共5小题;每小题2分,满分10 分)(7选5题)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。

甘肃省武威市第六中学2017_2018学年高一化学下学期第三次学段考试期末试题理2018071701

甘肃省武威市第六中学2017_2018学年高一化学下学期第三次学段考试期末试题理2018071701

甘肃省武威市第六中学2017-2018学年高一化学下学期第三次学段考试(期末)试题理第Ⅰ卷(选择题共48分)一、选择题(本题包括16个小题,每小题3分,共48分。

每小题只有一个选项符合题意。

)1.下列物质中,碱性最强的是A.CsOH B.KOH C.NaOH D.LiOH2.下列电子式中,正确的是A. B. C. D.3.下列物质含有极性共价键的是A.HCl B. Cl2C.Na2O2D.NaCl4.已知元素X、Y的核电荷数分别是a和b,它们的离子X m +和Y n- 的核外电子排布相同,则下列关系式正确的是( )A.a=b+m+n B.a=b-m+n C.a=b+m-n D.a=b-m-n5.对于放热反应:H2(g)+Cl2(g)=2HCl (g) 下列说法正确的是A.因为该反应为放热反应所以在常温下就可以发生B.F2与H2反应比Cl2与H2更容易C.H2、Cl2、HCl中各原子均达到8电子稳定结构D.形成1mol H-Cl键所释放的能量一定大于拆开1molH-H键和1molCl-Cl键所吸收的能量6.合成氨工业为人类解决粮食问题做出了巨大贡献。

一定条件下,在密闭容器中进行合成氨反应:N2(g) + 3H2(g) 2NH3(g),当正、逆反应速率相等且不等于零时,下列说法不.正确..的是A.N2、H2完全转化为NH3B.N2、H2、NH3在容器中共存C.反应已达到化学平衡状态D.N2、H2、NH3的浓度不再改变7.在用Zn片、Cu片和稀硫酸组成的电池装置中,经过一段时间工作后,下列说法中正确的是A.锌片是正极,铜片上有气泡产生B.电流方向是从锌片流向铜片C.溶液中的阳离子向正极移动,阴离子向负极移动D.电解液的PH值逐渐减小8.下列属于取代反应的是A.乙烯通入溴水中 B.光照甲烷与氯气的混合气体C.苯与溴水混合后撒入铁粉 D.在镍做催化剂的条件下,苯与氢气反应9.下列事实与推论相符的是选项实验事实推论A H2O的沸点比H2S的沸点高非金属性:O>SB H2SO3的酸性比HClO的酸性强非金属性:S>ClC 钾与水的反应比钠与水的反应更剧烈金属性:Na>KD HF的热稳定性比HCl的强非金属性:F>Cl10.把.A、B、C、D四块金属泡在稀H2SO4中,用导线两两相连可以组成各种原电池。

甘肃省武威六中高一地理下学期期末考试题

甘肃省武威六中高一地理下学期期末考试题

武威六中 2018~2018 学年度第二学期高一地理必修 III 模块学习终结性检测考试一试卷一、单项选择题(每题 2 分,共 60 分)1.对于地区的表达,错误的是()..A .地区都拥有必定的区位特色B.地区都有必定的面积和形状C.地区都有必定明确的界限D.地区地理环境对地区发展有深刻的影响2. 受地区自然地理环境影响最显然的人类活动是()A. 农业B.工业C.金融贸易D.服务业3.对我国不一样地区传统民居建筑特色的表达,正确的选项是()A.北方民居正南正北的方向观较南方差 B .西北民居屋顶坡度缓和C.浙闽山区民居屋顶多为平展状D.南方民居墙体较北方严实厚重4.对于“地理信息系统”的表达,正确的选项是()A.是一个在飞机或卫星上对地物进行感知,获守信息的系统B.是地图的延长C.能随时确立自己所处的地理坐标D.拥有全天候、全世界性、连续性和及时性的特色5.下边各项中,适合应用遥感技术的是()A.人口普查 B .丛林普查 C .交通定位导航 D .确立某点高程以下资料是20 世纪下半叶我国强沙尘暴发生频次与土地沙化速度统计表,据此回答6—7 题:50年月60年月70年月80年月90年月强沙尘暴次数58131423土地沙化速度 ( 平方千 M/年 )156021002460 6.表中显示我国的土地沙化速度在不停加速,其原由最可能是()A.我国天气有变干的趋向B .南方北回归线邻近地域出现沙化地域C.长江中上游地域毁林现象严重 D .西北干旱地域生态环境的进一步恶化7.为了遏止强沙尘暴次数增加和沙化速度加速的趋向,我们应采纳的踊跃有效的措施是()A.开采地下水浇灌,变沙地为耕地草地B.在干旱地域减少耕地,扩大牧场,发展畜牧业C.采纳适合方法调整当地家产构造,以减少生态环境的压力D.严禁干旱地域任何经济活动的展开,以保护当地柔弱的生态环境8.亚马孙雨林被称为地球之肺,原由是()A.能够吸纳和滞蓄大批降水B.深刻影响着地球大气中的碳氧均衡C. 促使全世界水循环,调理全世界水均衡D.能够为人类供给大批的生物质源9.以下对于亚马孙开发计划及其影响的说法,正确的选项是()A.人类的开发是致使雨林被毁的直接原由B.该区雨林损坏的背景是当地人口素质低下C.过分的焚耕开垦(迁徙农业)是亚马孙地域损坏雨林的独一方式D.巴西政府正式宣布有名的亚马孙流域大规模开发计划是在20 世纪五六十年月我国为了改良日益恶化的生态环境,建设了很多防备林系统,此中规模较大的是“三北”防备林和长江中上游防备林。

甘肃省武威市第六中学高一地理下学期第三次学段考试(期末)试题文(2021年整理)

甘肃省武威市第六中学高一地理下学期第三次学段考试(期末)试题文(2021年整理)

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(期末)试题文一、单项选择题:(本题共30小题,每小题2分,共60分。

)2015年中国人口自然增长率为4。

96‰,死亡率为7。

11‰(数据国家统计局)。

2016年1月1日起,我国全面实施“一对夫妇可生育两个孩子”的政策。

据此完成1~2题. 1.2015年中国人口增长的主要特点是()A.高出生率、高死亡率、低自然增长率B.低出生率、低死亡率、低自然增长率C.高出生率、低死亡率、高自然增长率D.低出生率、高死亡率、低自然增长率2.全面实施“一对夫妇可生育两个孩子”政策有助于我国()A.减少老年人口的数量B.增加人口合理容量C.降低人口自然增长率D.人口长期均衡发展“候鸟式”养老是当今兴起的一种新型养老模式.不少北方老年人选择冬季到南方的城市居住、旅游,北方天暖后再回到原地居住。

近年来攀枝花已成为我国冬季养老的热点城市之一,攀枝花正在实现由“钢城”向“阳光花城”的转型。

据此完成3~4题. 3.影响攀枝花成为“候鸟式”养老目的地的主要因素是( )A.生态环境因素B.经济因素C.政治因素D.社会文化因素4.大量外来人口对“阳光花城"兴起的社会经济影响表述正确的是()①有利于缓解劳动力不足②促进产业结构转型升级③促进生态环境改善④优化当地人口结构⑤促进多元文化交流⑥带动当地消费,促进经济发展A.②③⑥B.②⑤⑥C.①③⑤D.①④⑥下图示意我国中部某城市居民购买不同登记商品的出行距离,据此,完成5~6题。

甘肃省武威市第六中学2017-2018学年高一数学下学期第三次学段考试(期末)试题

甘肃省武威市第六中学2017-2018学年高一数学下学期第三次学段考试(期末)试题

甘肃省武威市第六中学2017-2018学年高一数学下学期第三次学段考试(期末)试题一、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)1.0000sin 45cos15cos 45sin165-的值是()A .32B .21C .21-D .23- 2.下列各式中,值为12的是()A .sin15cos15B .22cos sin 1212ππ-C .11cos 226π+D .2tan 22.51tan 22.5- 3.已知a 、b 、c 是共起点的向量,a 、b 不共线,且存在m 、n ∈R 使c =m a +n b 成立,若 a 、b 、c 的终点共线,则必有()A .m +n =0B .m -n =1C .m +n =1D .m +n =-14.如图,正方形ABCD 中,点E 、F 分别是DC 、BC 的中点,那么错误!=()A .错误!错误!+错误!错误!B .-错误!错误!-错误!错误!C .-错误!错误!+错误!错误!D .错误!错误!-错误!AD5.已知C 为△ABC 的一个内角,向量m =(2cos C -1,-2),n =(cos C ,cos C +1).若 m ⊥n ,则∠C 等于()A .错误!B .错误!C .错误!D .错误!6.三个正数a 、b 、c 成等比数列,则lga 、 lgb 、 lgc 是( )A .等比数列B .既是等差又是等比数列C .等差数列D .既不是等差又不是等比数列7.在△ABC 中,a =80,b =100,A =45°,则此三角形解的情况是 ()A 。

一解B 。

两解C 。

一解或两解D 。

无解8.已知向量(2,3)=a ,(1,2)=-b ,若m n +a b 与2-a b 共线,则n m 等于( ) A .2-; B .2 C .21- D .219.为了得到函数x x y 2cos 2sin +=的图像,只需把函数x x y 2cos 2sin -=的图像( )A .向左平移4π个长度单位B .向右平移4π个长度单位C .向左平移2π个长度单位 D .向右平移2π个长度单位10.在ABC ∆中,2sin sin cos 2A B C =,则ABC ∆的形状是()A .等边三角形B .等腰三角形C .直角三角形D .直角三角形11.设函数f (x )满足*)(2)(2)1(N n n n f n f ∈+=+,且f(1)=2,则f(20)=( ) A 。

甘肃省武威市第六中学高一物理下学期第三次学段考试(期末)试题理(2021年整理)

甘肃省武威市第六中学高一物理下学期第三次学段考试(期末)试题理(2021年整理)

末)试题理编辑整理: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(甘肃省武威市第六中学2017-2018学年高一物理下学期第三次学段考试(期末)试题理)的内容能够给您的工作和学习带来便利。

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(期末)试题理(本试卷共2页,大题3个,小题16个。

答案要求写在答题卡上)一、选择题(每题4分,共48分,其中1—8题为单项选择题,9-12为多项选择题,选对但不全的得2分,错选或不选得0分)1.关于能量和能源,下列说法中正确的是( )A.能量在转化和转移过程中,其总量有可能增加B。

能量在转化和转移过程中,其总量会不断减少C。

能量在转化和转移过程中总量保持不变,故节约能源没有必要D.能量的转化和转移具有方向性。

且现有可利用的能源有限,故必须节约能源2.如图所示,一轻弹簧固定于O点,另一端系一重物,将重物从与悬点O在同一水平面且弹簧保持原长的A点无初速度释放,让它自由摆下。

不计空气阻力,在重物由A点摆向最低点B的过程中( )A。

重物的重力势能增加 B。

弹簧的弹性势能不变C。

重物的机械能减少 D。

重物和弹簧组成的系统机械能减少3.如图所示,一小孩从公园中粗糙的滑梯上自由加速滑下,其能量的变化情况是A。

重力势能减小,动能不变,机械能减小,总能量减小B.重力势能减小,动能增加,机械能减小,总能量不变C。

重力势能减小,动能增加,机械能增加,总能量增加D。

重力势能减小,动能增加,机械能守恒,总能量不变4.如图所示,小球在竖直放置的光滑圆形管道内做圆周运动,内侧壁半径为R,小球半径为r,则下列说法正确的是()A.小球通过最高点时的最小速度v min = B 。

甘肃省武威市第六中学2018-2019学年高一下学期第三次学段考试数学试题含解析

甘肃省武威市第六中学2018-2019学年高一下学期第三次学段考试数学试题含解析

武威六中2018-2019学年度第二学期第三次学段考试高一数学试卷一、选择题(本大题共12小题,每小题5分,满分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.若a 、b 、c 为实数,则下列命题正确的是( ) A. 若a b >,则22ac bc > B. 若0a b <<,则22a ab b >> C. 若0a b <<,则11a b < D. 若0a b <<,则b a a b> 【答案】B 【解析】 【分析】利用等式的性质或特殊值法来判断各选项中不等式的正误. 【详解】对于A 选项,若0c =,则22ac bc =,故A 不成立;对于B 选项,0a b <<Q ,在不等式a b <同时乘以()0a a <,得2a ab >, 另一方面在不等式a b <两边同时乘以b ,得2ab b >,22a ab b ∴>>,故B 成立;对于选项C ,在a b <两边同时除以()0ab ab >,可得11b a<,所以C 不成立; 对于选项D ,令2a =-,1b =-,则有221a b -==-,12b a =,b aa b <,所以D 不成立. 故选:B.【点睛】本题考查不等式正误的判断,常用的判断方法有:不等式的基本性质、特殊值法以及比较法,在实际操作中,可结合不等式结构合理选择相应的方法进行判断,考查推理能力,属于基础题.2.已知倾斜角为45o 的直线经过(2,4)A ,(1,)B m 两点,则m =( ) A. 3 B. 3-C. 5D. 1-【答案】A 【解析】试题分析:∵直线经过两点(2,4)A ,(1,)B m ,∴直线AB 的斜率4421k m π-==--,又∵直线的倾斜角为045,∴1k =,∴3m =.故选:A . 考点:直线的斜率;直线的倾斜角.3.在△ABC 中,若2a =,b =030A =,则B 等于( ) A. 60oB. 60o 或120oC. 30oD. 30o 或150o【答案】B 【解析】试题分析:由正弦定理可得:sin 60sin sin a b B B A B =⇒=⇒=o 或120o . 考点:正弦定理解三角形.4.圆2260x y x +-=与圆228120x y x +++=的位置关系为( ) A. 相离 B. 相交 C. 外切 D. 内切【答案】A 【解析】 【分析】求得两圆的圆心坐标和半径,根据圆心距和两圆半径的关系,即可判定,得到答案. 【详解】由题意,圆2260x y x +-=的圆心坐标1(3,0)C ,半径为13r =,圆228120x y x +++=的圆心坐标2(4,0)C -,半径为22r =,则圆心距为123(4)7C C =--=,所以1212C C r r >+, 所以两圆相离,故选A.【点睛】本题主要考查了两圆的位置关系的判定,其中解答中熟记两圆的位置关系的判定方法是解答的关键,着重考查了推理与运算能力,属于基础题.5.若正数,m n 满足21m n +=,则11m n+的最小值为A. 3+B. 3C. 2+D. 3【答案】A 【解析】 【分析】 由11112()(2)3n m m n m n m n m n+=+⋅+=++,利用基本不等式,即可求解,得到答案. 【详解】由题意,因为21m n +=,则11112()(2)333n m m n m n m n m n +=+⋅+=++≥+=+, 当且仅当2n mm n =,即n =时等号成立, 所以11m n+的最小值为3+ A.【点睛】本题主要考查了利用基本不等式求最小值问题,其中解答中合理构造,利用基本不是准确运算是解答的关键,着重考查了推理与运算能力,属于基础题.6.已知数列{}n a 是递增的等比数列, 14239,8a a a a +==,则数列{}n a 的前10项和等于( ) A. 1024 B. 511 C. 512 D. 1023【答案】D 【解析】 【分析】由题意,根据等比数列的性质和通项公式,求得11,2a q ==,再由前n 项和公式,即可求解.【详解】由题意,根据等比数列的性质,可得23148a a a a ==,联立方程组141498a a a a +=⎧⎨=⎩,解得141,8a a ==或148,1a a ==,因为数列{}n a 是递增的等比数列,所以141,8a a ==,又由33418a a q q ===,解得2q =,所以数列{}n a 的前10项和等于10101(12)102312S ⨯-==-,故选D.【点睛】本题主要考查了等比数列的性质,以及等比数列的通项公式和前n 项和公式的应用,着重考查了推理与运算能力,属于基础题.7.已知过点(2,)A m -和点(,4)B m 的直线为1l ,2:210l x y +-=,3:10l x ny ++=.若12l l //,23l l ⊥,则m n +的值为( )A. 10-B. 2-C. 0D. 8【答案】A 【解析】∵l 1∥l 2,∴k AB =42mm -+=-2,解得m =-8. 又∵l 2⊥l 3,∴1n-×(-2)=-1,解得n =-2,∴m +n =-10.选A.8.过坐标原点O 作圆()()22341x y -+-=的两条切线,切点为,A B ,直线AB 被圆截得弦AB 的长度为( )A.5B.5C.D.【答案】A 【解析】 【分析】求得圆的圆心坐标和半径,借助11222AOM AB S OA MA OM ∆=⨯⨯=⨯⨯,即可求解. 【详解】如图所示,设圆()()22341x y -+-=的圆心坐标为(3,4)M ,半径为1r =,则22345OM =+=,2512426OA =-==,则11222AOM AB S OA MA OM ∆=⨯⨯=⨯⨯,可得246OA MA AB OM ⨯⨯==, 故选A.【点睛】本题主要考查了直线与圆的位置关系的应用,其中解答中涉及到圆的切线方程应用,着重考查了推理与运算能力,属于基础题.9.关于x 的不等式22(1)(1)10a x a x ----<的解集为R ,则a 的取值范围为 ( ) A. 315a -<< B. 315a -≤≤ C. 315a -<≤或1a =- D. 315a -<≤ 【答案】D 【解析】 【分析】分情况讨论,当210a -=时,求出满足条件的a 的值;当210a -≠时,求出满足条件的a 的取值范围,即可得出结果.【详解】当210a -=时,1a =±,若1a =,则原不等式可化为10-<,显然恒成立;若1a =-,则原不等式可化为210x -<不是恒成立,所以1a =-舍去;当210a -≠时,因为()()221110a x a x ----<的解集为R ,所以只需()()222101410a a a ⎧-<⎪⎨=-+-<⎪⎩V ,解得315a -<<;综上,a的取值范围为:31 5a-<≤.故选D【点睛】本题主要考查一元二次不等式恒成立的问题,需要用分类讨论的思想来处理,属于常考题型.10.若x,y满足2020x ykx yy+-≥⎧⎪-+≥⎨⎪≥⎩,且z y x=-的最小值为4-,则k的值为()A. 2B. 2-C.12D.12-【答案】D【解析】试题分析:作出不等式组20{20x ykx yy+-≥-+≥≥,所表示的平面区域,如下图:由图可知:由于直线20kx y-+=过定点(0,2),只需它还过点(4,0)即可,4020k∴-+=,解得:12k=-.故选D.考点:线性规划.【此处有视频,请去附件查看】11.直线cos 20x α++=的倾斜角范围是( )A. ,62ππ⎡⎫⎪⎢⎣⎭5,26ππ⎛⎤⋃ ⎥⎝⎦B. 50,,66πππ⎡⎤⎡⎫⋃⎪⎢⎥⎢⎣⎦⎣⎭C. 50,6π⎡⎤⎢⎥⎣⎦D. 5,66ππ⎡⎤⎢⎥⎣⎦【答案】B【解析】 【分析】由题意,设直线的倾斜角为θ,根据直线方程,求得tan θ≤≤,即可求解. 【详解】由题意,设直线的倾斜角为θ直线cos 20xα++=的斜率为[33k=-,即tan 33θ-≤≤,又由[0,)θπ∈,所以50,,66πθππ⎡⎤⎡⎫∈⋃⎪⎢⎥⎢⎣⎦⎣⎭, 故选B.【点睛】本题主要考查了直线方程的应用,以及直线的斜率与倾斜角的关系的应用,着重考查了推理与运算能力,属于基础题.12.若直线y x b =+与曲线3y =b 的取值范围是( )A. [1-+B. [1C. [1-D. [1,1-+【答案】C 【解析】 【分析】化简曲线得到表示以(2,3)A 为圆心,以2为半径的一个半圆,利用圆心到直线y x b =+的距离等于半径2,求得122b =+或122b =-,结合图象,即可求解.【详解】如图所示,曲线234y x x =--,即22(2)(3)4(13,04)x y y x -+-=≤≤≤≤, 表示以(2,3)A 为圆心,以2为半径的一个半圆, 由圆心到直线y x b =+的距离等于半径2,可得2322b-+=,解得122b =+或122b =-, 结合图象可得1223b -≤≤,故选C.【点睛】本题主要考查了直线和圆的位置关系的应用,以及点到直线的距离公式的应用,着重考查了数形结合法,以及推理与运算能力,属于中档试题.二、填空题(本大题共4小题,每小题5分,共20分)13.在ABC V 中,若2a =,7b c +=,1cos 4B =-,则b =_______. 【答案】4 【解析】由题意,222212cos 4(7)22(7)4b a c ac B b b ⎛⎫=+-=+--⨯⨯-⨯- ⎪⎝⎭,整理可得:1560b =,解得4b =.14.已知两条直线()12:200,:4210l x y a a l x y -+=>-++=,若1l 与2l 间的距离是75a =____.【答案】3 【解析】 【分析】化直线12:4220,:4210l x y a l x y -+=--=,利用平行线之间的距离,即可求解.【详解】由题意,两条直线()12:200,:4210l x y a a l x y -+=>-++=,可化为直线()12:42200,:4210l x y a a l x y -+=>--=的距离是10,10=,又由0a >,可得3a =. 【点睛】本题主要考查了两平行线间的距离公式的应用,其中解答中熟记两平行线间的距离公式是解答的关键,着重考查了推理与运算能力,属于基础题.15.记n S 为数列{}n a 的前n 项和,若23S =,()*11n n a S n N +=+∈,则通项公式n a =______.【答案】12n - 【解析】 【分析】先求出12,a a ,然后由11n n a S +=+得11(2)n n a S n -=+≥,两式相减得12n n a a +=,从而由等比数列定义得数列为等比数列.【详解】∵11n n a S +=+,∴21111a S a =+=+,又2123S a a =+=,∴121,2a a ==,由11n n a S +=+得11(2)n n a S n -=+≥,两式相减得11n n n n n a a S S a +--=-=,即12n n a a +=,而212a a =,∴{}n a 是公比为2的等比数列,∴12n n a -=.故答案为12n -.【点睛】本题考查等比数列通项公式,解题关键是掌握数列前n 项和n S 与项n a 之间的关系,即1(2)n n n a S S n -=-≥,利用此式得出数列的递推关系,同时要注意此关系式中有2n ≥,因此要考虑数列的首项1a 与2a 的关系是否与它们一致.16.已知圆22:(3)(4)1C x y -+-=和两点(,0)A m -,(,0)B m (0)m >,若圆C 上存在点P 使得090APB ∠=,则m 的最大值为__________.【答案】6 【解析】圆C :(x ﹣3)2+(y ﹣4)2=1的圆心C (3,4),半径r=1, 设P (a ,b )在圆C 上,则=(a+m ,b ),=(a ﹣m ,b ),∵∠APB=90°,∴,∴=(a+m )(a ﹣m )+b 2=0,∴m 2=a 2+b 2=|OP|2,∴m 的最大值即为|OP |的最大值,等于|OC|+r=5+1=6. 故答案为:6.三、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.求满足下列条件的圆的方程:(1)过三点(00),(11),(42)O A B ,,,的圆的方程; (2)圆心在直线20x y +=上且与直线10x y +-=切于点()2,1-M . 【答案】(1)()()224325x y -++=;(2) ()()22122x y -+=+. 【解析】 【分析】(1)设出圆的一般方程,列出方程组,求得,,D E F 的值,即可求解; (2)设出圆标准方程,根据题设条件和圆的性质,求得,a r 的值,即可求解. 【详解】(1)设过三点()()()0,0,1,1,4,2O A B 的圆的方程为220x y Dx Ey F ++++=则0110164420F D E F D E F =⎧⎪++++=⎨⎪++++=⎩,解得8,6,0D E F =-==, 所以圆的一般方程为22860x y x y +-+=,标准方程为()()224325x y -++=.(2)由题意,圆心在直线20x y +=上,设圆的标准方程为()()2222x a y a r -++= 又由圆直线10x y +-=切于点()2,1-M ,则2(1)(1)12a a ---⋅-=--,解得1a =,即圆心坐标为(1,2)-,所以r ==, 所以圆的方程为()()22122x y -+=+.【点睛】本题主要考查了圆的方程的求解,其中解答中熟记圆的标准方程和圆的一般方程,准确计算是解答的关键,着重考查了推理与运算能力,属于基础题.18.在△ABC 中,a =3,b −c =2,cos B =12-. (Ⅰ)求b ,c 的值; (Ⅱ)求sin (B –C )的值. 【答案】(Ⅰ) 75b c =⎧⎨=⎩; (Ⅱ)【解析】 【分析】(Ⅰ)由题意列出关于a ,b ,c 的方程组,求解方程组即可确定b ,c 的值; (Ⅱ)由题意结合正弦定理和两角和差正余弦公式可得()sin B C -的值.【详解】(Ⅰ)由题意可得:2221cos 2223a c b B ac b c a ⎧+-==-⎪⎪⎪-=⎨⎪=⎪⎪⎩,解得:375a b c =⎧⎪=⎨⎪=⎩.(Ⅱ)由同角三角函数基本关系可得:sin B ==, 结合正弦定理sin sin b c B C =可得:sin sin 14c B C b == 很明显角C为锐角,故11cos 14C ==,故()sin sin cos cos sin B C B C B C -=-=【点睛】本题主要考查余弦定理、正弦定理的应用,两角和差正余弦公式的应用等知识,意在考查学生的转化能力和计算求解能力.19.求满足下列条件的直线的方程:(1)求与直线20x y -=平行,且过点(2)3,的直线方程; (2)已知正方形的中心为直线220x y -+=和10x y ++=的交点,其一边所在直线的方程为350x y +-=,求其他三边的方程.【答案】(1)240x y -+=;(2) 390x y -+=,330x y --=,370x y ++=. 【解析】 【分析】(1)过点()23,与直线20x y -=平行,斜率得到12k =,利用点斜式方程,即可求解; 由点斜式方程,可得直线方程是()1322y x -=-,即240x y -+=; (2)联立方程组,解得交点坐标为(1,0)-,分别设所求直线为30(5)x y m m ++=≠-,【详解】(1)过点()23,与直线20x y -=平行,即所求直线的斜率为12k =, 由点斜式方程,可得直线方程是()1322y x -=-,即240x y -+=; (2)联立方程组22010x y x y -+=⎧⎨++=⎩,解得交点坐标为(1,0)-,设与边所在直线350x y +-=平行的边的方程为30(5)x y m m ++=≠-, 设与边所在直线350x y +-=垂直的边的方程为30x y n -+=,又由正方形的中心(1,0)-到直线350x y +-==, 所以点(1,0)-,==,解得7,9m n ==或3n =-,所以其它边所在的直线方程分别为370x y ++=,390x y -+=,330x y --=. 【点睛】本题主要考查了两条直线的位置关系的应用,直线方程的求解,以及点到直线的距离公式的应用,着重考查了推理与运算能力,属于基础题.20.等差数列{}n a 前n 项和n S ,且432S =,13221S =.(1)求{}n a 的通项公式n a ;(2)数列{}n b 满足()*1n n n b b a n N+-=∈且13b =,求1nb ⎧⎫⎨⎬⎩⎭的前n 项和nT .【答案】(1) 23n a n =+ (2) 13112212n T n n ⎛⎫=-- ⎪++⎝⎭【解析】 【分析】(1)根据等差数列{}n a 中432S =,13221S =,列出关于首项1a 、公差d 的方程组,解方程组可得1a 与d 的值,从而可得数列{}n a 的通项公式;(2)利用(1),由“累加法”可得111122n b n n ⎛⎫=- ⎪+⎝⎭,利用裂项相消法求和即可得结果. 【详解】(1)等差数列{}n a 的公差设为d ,前n 项和为n S ,且432S =,13221S =. 可得14632a d +=,11378221a d +=, 解得15a =,2d =,可得()21253n n n a +-=+=; (2)由123n n n b b a n +-==+,可得()()()121321n n n b b b b b b b b -=+-+-+⋯+-135721(24)(2)2n n n n n =+++⋯++=+=+, 111122n b n n ⎛⎫=- ⎪+⎝⎭,则前n 项和11111111111232435112n T n n n n ⎛⎫=-+-+-++-+- ⎪-++⎝⎭L 13112212n n ⎛⎫=-- ⎪++⎝⎭. 【点睛】本题主要考查等差数列的求和公式,以及裂项相消法求数列的和,属于中档题. 裂项相消法是最难把握的求和方法之一,其原因是有时很难找到裂项的方向,突破这一难点的方法是根据式子的结构特点,常见的裂项技巧:(1)()1111n n k k n n k ⎛⎫=- ⎪++⎝⎭;(2)1k=; (3)()()1111212122121n n n n ⎛⎫=- ⎪-+-+⎝⎭;(4)()1111222n n n n ⎛⎫=- ⎪++⎝⎭;此外,需注意裂项之后相消的过程中容易出现丢项或多项的问题,导致计算结果错误.21.在锐角ABC ∆中,角A B C ,,所对的边为,a b c ,, 若,cos cos A B + ()cos 0C C =,且1b =. (1)求角B 的值; (2)求a c +的取值范围. 【答案】(1)3π;(2)2⎤⎦.【解析】 【分析】(1)根据三角恒等变换的公式和三角形的内角和定理,化简可得sin B B =,即可求解;()2由正弦定理得,a A b B ==,得到所以a c +2sin 6A π⎛⎫=+ ⎪⎝⎭,利用三角函数的性质,即可求解.【详解】(1)由题意,因为()cos cos cos 0A B C C +=, 又由A B C π++=,则cos cos[()]cos()A B C B C π=-+=-+,所以()()cos cos cos B C C B C =+cos cos sin sin B C B C =-,可得sin sin cos B C C B =,因为(0,)C π∈,则sin 0C ≠,所以sin B B =,即tan B =B 为锐角,可得3B π=.(2)由正弦定理sin sin sin 3a c b A C B ===,则,33a Ab B ==,所以)sin sin 3a c A C +=+=2sin sin 3A A π⎤⎛⎫+- ⎪⎥⎝⎭⎣⎦2sin 6A π⎛⎫=+ ⎪⎝⎭, 因为20,,0,,,2233A C B A C ππππ⎛⎫⎛⎫∈∈==- ⎪ ⎪⎝⎭⎝⎭, 可得,62A ππ⎛⎫∈⎪⎝⎭,所以2,633A πππ⎛⎫+∈ ⎪⎝⎭, 可得sin 6A π⎛⎫+∈ ⎪⎝⎭2⎛⎤ ⎥⎝⎦,所以2sin 26a c A π⎛⎫⎤+=+∈ ⎪⎦⎝⎭.故a c +的取值范围2⎤⎦.【点睛】本题主要考查了三角恒等变换、三角函数的图象与性质的应用,以及正弦定理的边角互化的应用,着重考查了推理与运算能力,属于中档试题.22.已知等差数列{}n a 满足32421,7a a a =-=,等比数列{}n b 满足()35242b b b b +=+,且()2*22n n b b n =∈N .(1)求数列{}n a ,{}n b 的通项公式; (2)若nn nc a b =,求{}n c 的前n 项和n S . 【答案】(1)21n a n =-,12n n b -=;(2)(23)23n n S n =-+.【解析】 【分析】(1)由32421,7a a a =-=,求得1,a d ,得到等差数列的通项公式,又由35242()b b b b +=+和222n n b b =,求得1,b q ,得到等比数列的通项公式;(2)由(1),求得1(21)2n n c n -=-,利用乘公比错位相减法,即可求解数列{}n c 的前n 项和.【详解】(1)设{}n a 的首项为1a ,公差为d ,则有1122()1a d a d +=+-,137a d +=, 解得1a 1,d 2==,所以21n a n =-,设11n nb b q -=,由35242()b b b b +=+,即24311112()b q b q b q b q +=+,即24322q q q q +=+,解得2q =,由222n n b b =得,21121122(2)n n b b --=, 可得11b =,所以12n nb -=.(2)由()1知,21nnc n b =-,所以1(21)2n n c n -=-, 则01221123252(23)2(21)2n n n S n n --=⨯+⨯+⨯++-+-L ,两侧同乘公比2,可得12312123252(23)2(21)2n nn S n n -=⨯+⨯+⨯++-+-L , 两式相减可得23112[2222](21)2n nn S n --=+++++--L12(12)12(21)2(32)2312n n n n n -⨯-=+⨯--=-⋅--所以(23)23n n S n =-⋅+.【点睛】本题主要考查等差、等比数列的通项公式及求和公式、以及“错位相减法”求和的应用,此类题目是数列问题中的常见题型,解答中确定通项公式是基础,准确计算求和是关键,易错点是在“错位”之后求和时,弄错等比数列的项数,能较好的考查考生的逻辑思维能力及基本计算能力等.。

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2017-2018学年甘肃省武威市第六中学高一下学期第三次学段考试(期末)化学(理)试题
第Ⅰ卷(选择题共48分)
一、选择题(本题包括16个小题,每小题3分,共48分。

每小题只有一个选项符合题意。

)1.下列物质中,碱性最强的是
A.CsOH B.KOH C.NaOH D.LiOH
2.下列电子式中,正确的是
A. B. C. D.
3.下列物质含有极性共价键的是
A.HCl B. Cl2C.Na2O2D.NaCl
4.已知元素X、Y的核电荷数分别是a和b,它们的离子X m +和Y n- 的核外电子排布相同,则下列关系式正确的是( )
A.a=b+m+n B.a=b-m+n C.a=b+m-n D.a=b-m-n
5.对于放热反应:H2(g)+Cl2(g)=2HCl (g) 下列说法正确的是
A.因为该反应为放热反应所以在常温下就可以发生
B.F2与H2反应比Cl2与H2更容易
C.H2、Cl2、HCl中各原子均达到8电子稳定结构
D.形成1mol H-Cl键所释放的能量一定大于拆开1molH-H键和1molCl-Cl键所吸收的能量
6.合成氨工业为人类解决粮食问题做出了巨大贡献。

一定条件下,在密闭容器中进行合成氨反应:N2(g) + 3H2(g) 2NH3(g),当正、逆反应速率相等且不等于零时,下列说
法不正确
...的是
A.N2、H2完全转化为NH3B.N2、H2、NH3在容器中共存
C.反应已达到化学平衡状态D.N2、H2、NH3的浓度不再改变
7.在用Zn片、Cu片和稀硫酸组成的电池装置中,经过一段时间工作后,下列说法中正确的是A.锌片是正极,铜片上有气泡产生
B.电流方向是从锌片流向铜片
C.溶液中的阳离子向正极移动,阴离子向负极移动
D.电解液的PH值逐渐减小
8.下列属于取代反应的是
A.乙烯通入溴水中 B.光照甲烷与氯气的混合气体
C.苯与溴水混合后撒入铁粉 D.在镍做催化剂的条件下,苯与氢气反应
10.把.A、B、C、D四块金属泡在稀H2SO4中,用导线两两相连可以组成各种原电池。

若A、B相连时,A为负极;C、D相连,D上有气泡逸出;A、C相连时A极减轻;B、D相连,B为正极。

则四种金属的活泼性顺序由大到小排列为
A.A>C>D>B B.A>C>B>D C.B>D>C>A D.A>B>C>D
11.下列各个装置中能组成原电池的是
12.可逆反应:在固定体积的密闭容器中反应,达到平衡状态的标志是
(1)单位时间内生成的同时生成
(2)单位时间内生成的同时,生成
(3)用的物质的量浓度变化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)混合气体的平均相对分子质量不再改变的状态
A.(1)(4)(6)B.(2)(3)(5)
C.(1)(3)(4)D.(1)(2)(3)(4)(5)(6)
13.把0.6molX气体和0.4molY气体混合于容积为2L的容器中,使其发生如下反应:3X(g)+Y(g) nZ(g)+2W(g)。

5min末生成0.2molW,若测知以Z浓度变化表示的平均反应速率为0.01mol/( L· min),则n的值为
A.4 B.3 C.2 D.1
14.甲烷中混有乙烯,欲除乙烯得到纯净的甲烷,可依次将其通过下列哪组试剂的洗气瓶A.澄清石灰水,浓H2SO4 B.溴水,浓H2SO4
C.酸性高锰酸钾溶液,浓H2SO4 D.浓H2SO4,酸性高锰酸钾溶液
15.R、W、X、Y、Z为原子序数依次递增的同一短周期元素,下列说法一定正确的是 (m、n均为正整数)
A.若R(OH)m为强碱,则W(OH)n也为强碱
B.若HXO m为强酸,则Y是活泼非金属元素
C.若Y的最低化合价为-2,则Z的最高正化合价为+6
D.若X的最高正化合价为+5,则五种元素都是非金属元素
16.海带中含碘元素。

从海带中提取碘有如下步骤:①通入足量Cl2;②将海带焙烧成灰后加水搅拌;③加CCl4振荡;④用分液漏斗分液;⑤过滤。

合理的操作顺序是
A.①②③④⑤ B.②⑤①③④ C.①③⑤②④ D.②①③⑤④
17.(8分)电池的发现是储能和供能技术的巨大进步,是化学对人类的一项重大贡献。

(1)现有如下两个反应:A.Ag+ + Cl- = AgCl↓, B. Fe + Cu2+ = =Fe2++ Cu
其中能设计成原电池的是。

(填“A”或“B”)
(2)利用上述能构成原电池的反应,设计一个原电池,写出电极反应式。

负极反应式
正极反应式
(3)画出实验装置图,并标出电极材料和电解质溶液名称。

18.(16分)短周期元素X、Y、Z、W、N的原子序数依次增大,其中X的一种同位素原子没有中子,Y的一种核素可做考古学家测文物的年代,Z为地壳中含量最多的非金属元素,相同质量的W的单质在空气中缓慢氧化的产物与其在空气中燃烧产物不同,但转移的电子数相同,N 原子为所在周期中原子半径最小的原子(稀有气体除外).
(1)Y与X形成的X元素的质量分数最高的分子的结构式_____________;X、Z、N形成的原子个数比1:1:1的分子的电子式__________________;
(2)用电子式表示W2Z形成过程___________.
(3)Z、W、N的简单离子半径从大到小的顺序_____________(用离子符号表示).
(4)甲由上述元素X、Y元素形成的18电子分子,常温下是气态,可燃烧。

①甲分子中若两个H原子被Br取代,则可生成_______种溴代物;
②若把X的单质与氧气设计成燃料电池(KOH溶液为电解质溶液),则正极发生反应的电极
反应式负极发生反应的电极反应式

放电一段时间后溶液的碱性__________(增强、减弱、不变)。

19.(12分).(1)下图(左)是NO2和CO反应生成CO2和NO过程中的能量变化示意图,说明这个反应是____________(填“吸热”或“放热”)反应,反应物的总能量___________
(填“>”、“<”或“=”)生成物的总能量。

(2)某温度时,在一个2L的密闭容器中,X、Y、Z三种气体的物质的量随时间的变化
曲线如下图(右)所示。

根据图中数据,试填写下列空白:反应物是:,反
应物X的转化率,反应的化学方程式为:
从开始至2min,用Z浓度的变化表示该反应的速率为v(Z)=
20.(16分).如图在试管甲中先加入2mL 95%的乙醇,并在摇动下缓缓加入2mL浓硫酸,
充分摇匀,冷却后再加入2克无水乙酸,用玻璃棒充分搅拌后将试管固定在铁架台上,在试
管乙中加入5ml 饱和的碳酸钠溶液,按图连接好装置,用酒精灯对试管甲小火加热3~5min
后,改用大火加热,当观察到左试管中有明显现象时停止实验。

试回答:
(1)试管乙中观察到的现象是
(2)液体混合加热时液体容积不能超过其容积的,本实验加热的目的是
_________________________ ______;
(3)试管甲中加入浓硫酸的目的是
(4)该实验中长导管的作用是,其不宜伸入试管乙的溶液中,原因是(5)试管乙中饱和Na2CO3的作用是
(6)写出试管甲中发生反应的化学方程式

乙。

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