22:34◇A令ol☐□如图,在正四棱柱ABCD-A1B,CD1中,AB=AD=2,AA1=4,E为CC1的中点(1)证明:B1E⊥面ABE;(2)求CD,与面AEB所成角的正弦值.4/4【高二“七校联考”·数学第3页(共4页)】ZH241288B18.(17分)已知椭圆子十号=1,一组行直线的方程为y=之x十m(m∈R).(1)若这组直线与椭圆相交,求m的取值范围;(2)当它们与椭圆相交时,证明这些直线被椭圆截得的线段的中点在同一条直线上,19.(17分)已知数列{an,若{a.十a.+1}为等比数列,则称{a.}具有性质P(1)若数列{a}具有性质P,且a1=a2=1,as=3,求a:的值:(2)若b.=2十(-1)”,证明:数列{b}具有性质P;(3)设G十c2十…十c.=n2十n,数列{dn}具有性质P,其中d=1,d-d2=G1,d2十d3=c2,试求数列{d.}的通项公式.【高二“七校联考”·数学第4页(共4页)】ZH241288B
22:34◇A令ol☐□如图,在正四棱柱ABCD-A1B,CD1中,AB=AD=2,AA1=4,E为CC1的中点(1)证明:B1E⊥面ABE;(2)求CD,与面AEB所成角的正弦值.4/4【高二“七校联考”·数学第3页(共4页)】ZH241288B18.(17分)已知椭圆子十号=1,一组行直线的方程为y=之x十m(m∈R).(1)若这组直线与椭圆相交,求m的取值范围;(2)当它们与椭圆相交时,证明这些直线被椭圆截得的线段的中点在同一条直线上,19.(17分)已知数列{an,若{a.十a.+1}为等比数列,则称{a.}具有性质P(1)若数列{a}具有性质P,且a1=a2=1,as=3,求a:的值:(2)若b.=2十(-1)”,证明:数列{b}具有性质P;(3)设G十c2十…十c.=n2十n,数列{dn}具有性质P,其中d=1,d-d2=G1,d2十d3=c2,试求数列{d.}的通项公式.【高二“七校联考”·数学第4页(共4页)】ZH241288B
questions like those that emerged with the coming发展显著提高了许多社区的生活质量。报告援of the photograph.(随着2l世纪自动化程度的不引的研究表明,在许多地区,技术融入日常生活断提高,越来越多的人试图在技术驱动的世界中提高了效率,增加了获取信息的渠道,甚至在医确定人类能动性的存在位置。OpenAI等公司利疗保健方面取得了进步。)”可知,技术进步显著用人工智能生成的图像,正如摄影术出现时一样,提高了许多社区的生活质量,有很多技术进步带引发了诸多问题。)”可知,OpenAI和相机的共同来的好处,所以E项“These advancements have之处在于都挑战了人类的能动性。故选C。been particularly evident in rural and under8.B推理判断题。根据文章最后一段“If the history ofserved areas..(这些进步在农村和服务不足地区photography tells us anything,it's that the debate尤为明显。)”与前文提到的研究结果相契合,符won't be settled quickly,straightforwardly,or by合文意。故选E项。the institutions we typically associate with cultural11.D根据前文“Those who embrace technological pro-gate keeping,(如果说镊影的历史告诉了我们什gress argue that it creates new opportunities for么,那就是这场争论不会很快、直截了当地得到解individuals and businesses alike.For instance,决,也不会由我们通常与文化把关联系在一起的farmers in remote areas can now access real-time机构来解决。)”可推知,作者提到摄影的历史是想market information and weather updates through说明人工智能生成的图像将经历类似的辩论。故smartphones,enabling them to make more in-选B。formed decisions about their crops.Additional-二、七选五ly,small businesses can expand their reach glob-【解题导语】本文属于议论文。文章主要探讨科技ally through online platforms..(那些拥护技术进进步对社会的影响。科技进步虽带来诸多好处,但也存步的人认为,它为个人和企业都创造了新的机在负面影响。文章传递的价值和意义在于提醒人们要会。例如,偏远地区的农民现在可以通过智能手理性看待科技进步,努力缩小数字鸿沟,让科技更好地机获取实时市场信息和天气更新,使他们能够对造福人类。自己的作物做出更明智的决定。此外,小企业可9.B设空位于首段段尾,应是引出下文,根据后文以通过在线台扩大其全球影响力。)”以及后文"Those who embrace technological progress argue"They argue that while technology may bringthat it creates new opportunities for individualsbenefits to some,it often expands the differenceand businesses alike..(那些拥护技术进步的人认between the technologically informed and the为,它为个人和企业都创造了新的机会。)”以及digitally excluded.(他们认为,虽然技术可能给"Furthermore,critics fear that the unchecked一些人带来好处,但它往往扩大了掌握技术的人growth of technology may have negative impacts和被数字技术排斥的人之间的差距。)”可知,前on society and the environment.(此外,批评者担文提到那些拥抱技术进步的人认为它给个人和心技术的无限制发展可能会对社会和环境产生企业带来了新的机会,但后文却提到批评者认为负面影响。)”可知,本文主要探讨科技进步对社技术进步虽然可能给一些人带来好处,但往往扩会的影响,在根据前文“Over the past few dec-大了技术知情者和数字排斥者之间的差距,前后ades,technology has advanced at an unprecedent-是转折关系,所以D项“However,critics ofed rate,revolutionizing industries and shapingtechnological advancement hold a different view.new ways of life..(在过去的几十年里,技术以前(然而,技术进步的批评者持有不同的观点。)”和所未有的速度发展,彻底改变了工业,塑造了新前文构成转折关系,并引出下文。故选D项。的生活方式。)”可知,B项“The question arises:Is12.C设空位于段尾,是对前文的总结,根据前文“Theytechnological progress beneficial for all?(问题来argue that while technology may bring benefits to了:技术进步对所有人都有利吗?)”承接上文,并some,it often expands the difference between the引出下文,符合文意。故选B项。technologically informed and the digitally exclu-l0.E根据前文“According to the International Tele-ded.Studies conducted by organizations like thecommunication Union,a key advocate of techno-United Nations Development Programme reveallogical advancement,the rapid growth of tech-that many individuals,particularly those in de-nology has significantly improved the quality ofveloping regions or with limited resources,laglife in numerous communities.It cites studiesbehind in accessing and utilizing technological ad-that show the integration of technology into dailyvancements.(他们认为,虽然技术可能给一些人lives has led to increased efficiency,more access带来好处,但它往往扩大了掌握技术的人和被数to information,and even progress in healthcare字技术排斥的人之间的差距。联合国开发计划in numerous regions..(国际电信联盟是技术进步署等组织进行的研究表明,许多人,特别是发展的主要倡导者,根据该联盟的说法,技术的快速中地区或资源有限的人,在获取和利用技术进步17
⑤Find the“imperfect part''of your explanationA.①→③→⑤→②→④B.①→⑤→②→③→④C.⑤→②→①→③→④D.③→⑤→②→④→①35.In which part of a magazine can we most probably find this passage?A.Technology.B.Education.C.Culture.D.Life.DEnglish is one of the most important subjects for us middle school students.However,somestudents cannot get a satisfying mark in the exam.In my opinion,you needn't worry about that.36Speak without fear37 They worry that they can't say things correctly,so they don't speak at all.Don't do that.The fastest way to learn something is to do it again and again until you get it right.Use all of your resources(资源)Use as many different resources,methods and tools as possible,which will allow you tolearn faster.38 For example,the Internet is fantastic resource,and for the languagelearners it's perfect.39Take notes in English,put English books around your room,listen to English programs,watch English news and movies,and listen to English music and so on.Speak English with yourfriends whenever you can.Then you will begin thinking in English.Study as often as possibleBy studying things like grammar and vocabulary and doing exercises,you can reallyimprove your knowledge of any language.Actually,English is easy to learn if you can find a good way to learn it.40 Youare sure to study it well.A.There are many different ways you can use to improve your English.B.Please study English in a good way.C.Here are some suggestions which may help you to leamn English!D.Let English around you.E.The biggest problem most students face in leamning a new language is their own fear.7
⑤Find the“imperfect part''of your explanationA.①→③→⑤→②→④B.①→⑤→②→③→④C.⑤→②→①→③→④D.③→⑤→②→④→①35.In which part of a magazine can we most probably find this passage?A.Technology.B.Education.C.Culture.D.Life.DEnglish is one of the most important subjects for us middle school students.However,somestudents cannot get a satisfying mark in the exam.In my opinion,you needn't worry about that.36Speak without fear37 They worry that they can't say things correctly,so they don't speak at all.Don't do that.The fastest way to learn something is to do it again and again until you get it right.Use all of your resources(资源)Use as many different resources,methods and tools as possible,which will allow you tolearn faster.38 For example,the Internet is fantastic resource,and for the languagelearners it's perfect.39Take notes in English,put English books around your room,listen to English programs,watch English news and movies,and listen to English music and so on.Speak English with yourfriends whenever you can.Then you will begin thinking in English.Study as often as possibleBy studying things like grammar and vocabulary and doing exercises,you can reallyimprove your knowledge of any language.Actually,English is easy to learn if you can find a good way to learn it.40 Youare sure to study it well.A.There are many different ways you can use to improve your English.B.Please study English in a good way.C.Here are some suggestions which may help you to leamn English!D.Let English around you.E.The biggest problem most students face in leamning a new language is their own fear.7
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19:526@回4四回5o含:C时八年级物理答案.pdf文件预览1/3大同市2024—一2025学年度第一学期期末教学质量监测八年级物理答案满分100分时间90分钟一、选择题(本大题共12个小题,每小题3分,共36分。在每小题给出的四个选项中,只有一项符合题目要求,请选出并在答题卡上将该项涂黑)题号123456789101112选项C A B DD A B C D B C D二、实验探究(本大题共6个小题,13小题4分,14小题8分,15小题5分,16小题6分,17小题5分,18小题4分,共32分)13.(2)缓(4)0.750.50(5)加速14.(2)热胀冷缩(4)如图(2分)温度心1001(5)保持不变(6)汽化(7)吸热/吸收热量98(8)当汤沸腾后,无论使用大火还是小火,水的温度都会维持在100摄氏度,不会继续升高;或小火节约能源。(答案合理01245时即可)(9)水的沸点15.(2)不是光线没有行于凸透镜的主光轴,此时的光斑不是焦点(答案合理即)(3)同一高度(5)放大(6)A16.1)p=0(2)左(3)31.4(7)1.05×103(8)偏大(9)4-5-3-617.1)37(2)①1.88②面料2③内(3)夏季衣服选用进水汽好的面料18.(1)提出问题:液体蒸发快慢与温度有关吗?(1分)(2)设计实验方案:在相同的空气流速环境下,用胶头滴管从烧杯中吸取少量水,在两块玻璃片上分别滴相同的一滴水,并保证两滴水的表面积相同,用镊子夹住其中一个玻璃片放在点燃着的酒精灯上,另一个玻璃片放在一旁的桌子上,观察哪滴水干得快。(3分)(答案合理即可)【注:本题阅卷时采用整体赋分方式,注重设计方案的科学性和可操作性;器材选择上放宽松,控制变量体现在重点物理量即可:语言表述通顺有逻辑:答题时无固定模板,表述清楚即可。阅卷中切勿死抠细节】三、综合应用(本大题共9个小题,19-23小题每小空1分,24小题2分,25小题4分,26、27小题各6分,共32分)19.0.25120020.不正确近视凹21.凸透镜22.①错误之处:立竿见影归类错误(1分)②错因分析:对光的反射和光的直线传播现象混淆(1分》③将立竿见影归类在光的直线传播现象中(1分)23.(1)密度1.6×101(2)D(3)90(4)C24.如图所示(2分)通过「QQ浏览器」使用以下文档功能:了全屏播放☑标注/填写囚转为图片去使用〉25.答:寒冷的冬天温度很低,水很容易结冰,结冰后,质量不变,而冰密度小于水的密度
下列叙述错误的是()。98回答下列问题:(①)仪器A的名称是,在上述实验过程中,尾气吸收可选用的试剂为A.结合生产成本考虑,n(O3)最佳投料比为0.5n(NO)(2)实验室配制500mL该物质的量浓度氨水不需5101520253035要用到的仪器(右图)是(填选项标号)。B.其他条件相同,c(NaC1O)越大,NO除去率越大0.102030.40.50.60e(NaC1o)/(10mol/L)一系列操作”为蒸发浓缩、、过滤、C.NaC1O溶液吸收NO的离子方程式为n(NO)2NO+3C10 +H,O-3C1 +2NO+2H甲乙、干燥。(3)写出反应生成柠檬酸亚铁(FeCH,O,)的化学①③④D.1molO和0.05mo1NaC1O共同作用最多除去2molN0方程式:二、非选择题(本大题共4小题,共58分。)15.(14分)锰是生产各种合金的重要元素,也是制备隐形涂料[Mn,Zn1-,Fe0:(铁的+3价】(4)制备柠檬酸亚铁铵和柠檬酸铁铵时均需控温40℃,其原因是,的重要原料,工业上以菱锰矿(主要成分为MnCO,还含有铁、钴、铜等的碳酸盐杂(⑤)测定柠檬酸铁铵组成:取适量样品溶于蒸馏水,配成100mL溶液。取20.00mL质)为原料生产金属锰的工艺流程如下图所示。溶液,加入足量NaOH溶液充分反应,过滤、洗涤,灼烧至恒重,测得固体质量为足量硫酸过量MnO,氨水XY0.32g。另取20.00mL溶液于锥形瓶中,依次加入足量EDTA、HCH0溶液充分反应,滴入2滴酚酞试液,用1.00mol·L1NaOH标准溶液滴定至终点,消菱锰矿→浸取☐→氧化一→DH=4→除铜☐→除钴☐→电解☐→Mm耗标准溶液12.00mL。[已知:4NH+6HCHO=(CH,)6N,H+6H,0+3H,(CH,)N,H+3H+4OH=(CH)6N4+4H,O。]滤渣1滤渣2CoS固体电解废液①滴定终点现象为;②通过实验测定,柠檬酸铁铵化学式为已知:①25℃时,部分金属离子开始沉淀与完全沉淀的pH如下表所示:17.(14分)C0,的资源化对于构建低碳社会具有重要意义。回答下列问题:金属离子Fe2 Fe Cu"Mn2 Co*1.利用CO,催化加氢合成二甲醚,主要发生下列反应:开始沉淀的pH7.42.24.88.18.29.23.26.49.89.6反应i:C0,(g+H,(g)一CO(g)+H,O(g)△H=+41.2kJ·mol完全沉淀的pH反应i:2CO,(g)+6H,(g)一CH,OCH,(g)+3H,O(g)△H2②25C时,Kp(MnS)=2.5×100,Km(CoS)=4.0×1021,Km(CuS)=6.3×106;()已知反应:2CO(g)+4H(g)一CH,OCH,(g)+H,O(g)△H3=-204.9kJ,mol。③“除铜”时,溶液中c(Co2+)
=3D来的风,并学会从那里的生活,和那满足aa,bc.(和,随机抛斑受山*束试验时所控在于世界不同的位置吧别人下定义。在砖缝中全国100所名校高考模拟示范卷全国100所名校高考模拟示范卷二、非选择题:本题共4小题,共58分。16,(14分)甲醇是常见的,应用场景广泛的基础化学品之一,甲醇、乙烯、丙烯和氨是景象,我看到的是从砖缝安静,而看见和听见更多15、(14分)从钻钼废催化剂中提取钻和铝的工艺流程如图所示:用于生产其他化学品的四种关键基础化学品。(NH.)C.O.1)已知①H(g)+C0,(g)C0(g)+H,O(g)△H1=+41k·mol特的,这些东西自有它稀硫常0一笛一过迪一于烟一0c0②2H2(g)+CO(g)→CH,OH(g)△H,=-90k·mol会向往更辽阔的天地,斯则3H2(g)+C0,(g)CH,OH(g)+H,O(g)△H=k·mol-1动,我们只有在实践后皮被想剂一研南一破初一过遇一聚势阁滤渣一,毅-瓦用一过遇一仔耀一AO(2)恒容密闭容器中可逆反应3H,(g)+C0,(g)CH,OH(g)十H,O(g)达到衡状态的标志是。忽略了小的重要,甚已知:①结钼废催化剂中含有AL,0,Ca0.CM0S0,等,@Mw不与稀硫酸NHHCOA.单位时间内生成1 mol CO,的同时消耗1 mol CH,OH是不好的,小聪明、小气反应B,混合气体的密度不再改变慧,小不一定就无知(1)基态Co原子的价电子排布式为区。C,反应速率u(CO2):o(H2):u(CH,OH)u(H,O)=1:3:1:1,Co位于元素周期表的(2)滤渣的主要成分为D.混合气体的均相对分子质量不再改变我的砖缝,但每个人又(3)“沉铝”时发生反应的离子方程式为(3)一种以甲醇固定CO2的方法原理如下:记了简单,在喧闹中忘(④)“沉钻”时,温度与钻的沉淀率的关系如图所示,沉淀反应时间为10mn,当反0HC、00CHOHCe世界退出来,离开了叱应温度为50℃以上时,随着温度的升高,钴的沉淀率下降,可能原因舒展,他一定会觉得无为CHOH O小中的一切。那需要中100.0O一CHCH:更细微更敏锐的触年Ce-299.5CO辽阔的世界,还是微的悟性。9.0咋反应时间为10mim①每消耗1.5 mol CH,OH,同时固定标准状况下CO2的体积为8n(C02)n(Co2)=1.15CH:②若将CHOH替换为HOHCCHOH,则固定后的产物为阔自己的视野,让自己,的,因为这取决于(5)某含钴配合物的组成为CoCL·5NH·HO,该配合物中钴离子的配位数是(④用甲醇和C0反应合成甲酸甲酯,反应原理为CH,OH(g)+C0(g)催化剂,△人,周游世界又有什6.1mol该配合物与足量的硝酸银反应生成3 mol AgCI沉淀,则该配合物的HCOOCH(g)△H=-29.1k·mo1。科研人员对该反应进行了研究,部胸怀需要更辽阔的配体是,NH分子与钴离子形成配合物后,H一N一H键角会分研究结果如下:这一点我们已经普(填“变大”“变小”或“不变”),说明理由:060甲醇的转化线辽阔的疆土忘却,9(6)在空气中加热18.3gCoC,O,·2HO,其热重曲线如图。a点对应固体的成分是(填化学式),b→c段固体质量减小的原因是如果不能感受细微20看到苍白的世界a(275,14.7)10253.03540455.0pxtP07478828690947℃可以宏观,也可反应压强对甲醇转化率的影响压强一定时温度对反应速率的影响b(400,8.03)c100,7.5)代为①从反应压强对甲醇转化率的影响可知,工业制取甲酸甲酯应选择的压强是温度/℃②实际工业生产中采用的温度是80℃,其理由是【25·(新高考)ZX·MN·化学·JX)化学卷(一)第5页(共8页)【25·(新高考)ZX·MN·化学·JX©化学卷(一)第6页(共8)地渐要求:选准今以上不少于800字。

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