2026届高三单元阶段综合卷·数学（七）参考答案1.BA=60.故选B2.B根据题意得x²的系数为C×（-2）+（-a）×C×（-2）²=-8-24a=-32，解得a=1.敌选B3.A从10个数中任取5个数有C种取法，5个数的中位数为5，则小于5的数有2个，大于5的数也有2个，4.D频率分布直方图中，用水量低于6t的频率为0.06×2+0.11×2十0.18×2=0.7.用水量低于8t的频率为0.06×2+0.11×2+0.18×2+0.09×2=0.88，设全市家庭月均用水量的75%分位数的估计值为x，则0.7+（x-6）×0.09=0.75，解得x~6.56.故选D5.D由散点图知，去掉离群点D后，x与y的相关性变强，且为正相关，所以相关系数r的值变大，相关指数R的值变大，残差方和变小.故选D6.B由于服从正态分布N（μ，²）的随机变量在区间（g，μ十o），（-2o，μ+2o）和（g一3oμ+3o）内取值的概率分别为68.3%，95.4%，和99.7%.所以当学生的身高（单位：cm）服从正态分布（165，5），则适合身高在155~175cm范围内的校服大约要定制套数为1000×95.4%=954.故选B7.A记事件A为在某次通电后M、N有且只有一个需要更换，事件B为M需要更换，则P（A）=0.3X（1-0.2）+（1-0.3）X0.2=0.38，P（AB）=0.3×（1-0.2）=0.24，由条件概率公式可得P（BA）=P（A）0.3819以E（X）=3X546+2×故选C.12512512559.BCDM组数据的极差为98.6-94.2=4.4，N组数据的极差为98.6-94.6=4.0，则A错误；中位数均为1.2

17.解：（1)证明：取棱AB的中点F，连接CF，△ABC为等边三角形，CF⊥AB，又因为面ABBA⊥面ABC且面ABBA∩面ABC=AB，.CF⊥面ABB,A，又AA,C面ABBA1，4分所以AA，⊥CF，又AA，⊥BC，CF∩BC=C，所以AA，⊥面ABC，又△ABC为正三角形，所以三棱柱ABC-ABC为正三棱柱.6分(2）由（1)知三棱柱ABC-A,B,C，为正三棱柱，底面△ABC是边长为2的正三角形，设AA=a（a>0），则以棱AC的中点0为坐标原点，分别以OA，OB所在直线为x轴，轴，以过点O且与面ABC垂直的直线为轴建立如图所示的空间直角坐标系，.8分得A(1,0,0),B(0,√3,0),1B(0,√3,a)AE：9分设面AEB，的一个法向量为n=（x,y,z），[n·AE=0[-3x+√3y=0叫·EB.：=0'lx+√3y+2az=02√3可取n12分因为BO⊥面ACC,A，，所以可取面ACC,A，的一个法向量为m=（0,1，0).13分[m·n|3/6因为|cos|：解得α=1.|ml×lnl由题意得AA=（0,0,1）,面AEB,的一个法向量为n=（√3,3，-2√3），(0,0,1)·(√3,3,-2√3)√2则√242所以点A，到面AEB，的距离为15分218.解：（1)依题意可得2b=2,所以b=1,焦点为F(1,0）,得c=1,a²=b²+c²=1+1=2，所以椭圆方程为2分（2）（i）当直线l的斜率为1时，则其方程为y=x，/6与椭圆方程联立得1，解得4分6/6不妨设点A3设椭圆E：1（a>b>0)的左焦点为F，则由椭圆性质得|BF|=|AF,|，所以△ABF的周长为|AB|+|AF|+|BF|=|AB|+|AF|+|AF,丨又AF+AF,=2a=2√2，6分4√3所以△ABF的周长为+2√234√3所以当直线I的斜率为1时，△ABF的周长为+2√28分3数学答案第4页（共6页））

with a few minor changes, anyone can set the stage for success. 8 . With the right attitude and aXi'an's 19 ( culture) and archaeological treasures, ( 20 ( include) the Terracotta Army,make it a top tourist destination and a wellconnected city. Its new airport, opened in 2003, offers.little effort, you'll be crossing tasks off your to-do list faster than you can write them out!Use a daily planner 21 (fight) to major Chinese cities and international spots in Korea, Japan, and Southeast Asia.9. Being productive has more to do with organization than effort, so put 5 -10 minutes aside With plans to invest over $15 billion in highway and rail infrastructure, Xi'an is set to solidify itsevery night (or morning) to map out how you're going to spend the day ahead of you.role as 22 transport connection for western China.Complete important tasks before lunch四、应用文写作（满分30分）Most people are more productive in the morning, so do key tasks early. If you want to pitch a new假定你是李华，你校每周开设一节劳动课，请你给外国朋友Mike写一封邮件分享其中的一次service to a few important clients, make those calls before noon. If you're struggling to maintain your经历，内容包括：energy later in the day and you aren't at work, take a short rest. 101.活动过程；sfohinocDeclutter your home or workspace2.你的感想。A clean desk and an organized home will help you stay focused.1l.At the end of each day,注意：spend a few minutes throwing out the trash, putting things away, and organizing your workspace or home1.写作词数应为80左右；to get rid of clutter.2.请按如下格式在相应位置作答。12 Dear Mike,It's hard to be productive if you think you're doing something pointless. Start pushing yourself toyou're wasting your time, you're never going to get anything done!A. Find the value in the boring stuffB. Reward yourself for building habitsC. Mapping your day out will keep you focused on what's important1910D. All it takes is a little bit of preparation and a healthy dose of positive thinkingE. A 20-minute nap is a great way to put yourself back into a productive headspaceF. It may be hard to push through that first week if you aren't used to doing somethingG.Chaos has a way of drawing your attention away from whatever task you're trying to do09班级姓名分数阅读8000920070823467答案七选五81011129答案三、语法填空（共10小题；每小题1.5分，满分15分）阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。00Around 1,500 years ago, Xi'an was a global powerhouse, the starting point of the Silk Road,astirake 13 China's premier international commercial hub. Today, it's reemerging as a commercial gateway,010014 is strategically linking China's underdeveloped west and the “Neo-Eurasia Continental Bridge", a modern Silk Road.198401Xi'an, centrally15 (locate) in China and home to the famed Terracotta Warriors, is70.0transforming into a major engineering hub for aerospace, automotive, textile, and optical ( 光学的)atubogindustries. A successful foreign investment, the Xi'an Janssen pharmaceutical (制药的） plant, 16Yours,(stand) as China's 17（large）pharmaceutical JV （合资公司）， valued at $190 million.Li HuaThe city's aviation industry is also attracting global attention, with partnerships between Xi'anmanufacturers and aviation giants Boeing and Airbus, anticipating its rise 18 a key player in theworld's growing aviation market.英语第3页（共4页）衡水金卷·先享题·高三一轮复40分钟周测卷五英语第4页（共4页）

责编：刘娜25-26第1期25-26第1期THEME READING责编：刘娜GRAMMAR ONLINEW版八年级双语学报双语学报W版八年级For Unit 1For Unit 1单元主题阅读现在完成时（一）导读：本版围绕unit1谈论自我接纳、成长与实现，通过题型专练，帮助学生熟悉同话题阅读，并进行有效的语言学运用。导读：本版针对unit1单元语法进行梳理、讲解，并提供即时、对应的巩固练，帮助学生在语境中理解和掌握语法知识：内化语法结构。化OOPassagePassage 2现在完成时表示在以前某个时间已经发生No, he hasn't.强练的行为或曾经做过的事情对目前有某种影响。没有，他还没做。【观察】9. They have just found their shirts.I.翻译句子。建议用时：8分钟建议用时：9分钟1. Mary hasn't finished her homework yet.他们刚找到衬衫。Sometimes, you meet people whoHIERARCHY OF NEEDS1.你看过这部电影吗？阅读下面短文，从每小题所给的A、B、C、D四个选项中选出玛丽还没完成她的作业。10. Linda has just watched an interesting cartoon.seem to have everything. They areBYABRAHAMMASLOWHave you seen this movie?最佳选项。2.1have watched more than 200 films.琳达刚看了一部有趣的动画片。calm and happy, and never lookSELF-ACTUALIZATION2.你告诉他这个好消息了吗？The artist was born in Detroit, Michigan, in 1988.At an early age,我已经看过200多部电影了。11. Martin hasn't had lunch yet. Now he’'s veryHwe you told him the good news yet?away from problems.PsychologistsESTEEMshe showed afor music. While playing the flute in her high13. Has Andy already arrived in China?hungry.（心理学家）saythesepeople areLOVEschool band, she decided to have a try at rapping. When she was 14,3.你找到书包了吗？我们快迟到了！安迪已经到中国了吗？马丁还没吃午饭。现在他非常饿。别担心！我刚刚找到书包。“self-actualized（自我接纳的）”SAFETYshe2 a rap group with friends.4. Lucy and her sister have been to Harbin.【总结】Hawe you found the schoolbag? We'rePsychologistAbrahamMaslowAfter finishing school, shemusic in college. Life gotFOOD,WATER,4露西和她姐姐(妹妹)去过哈尔滨。句型构成例句almost late!used theword when he described hisAIR..after her parents moved away; she had to support herself. She slept in5.They have just been to Guilin. They wentDon't worry! I've just found it.pyramid（金字塔）of needs in 1943.the band's practice space or at friends’ houses.5,in2010,her主语+have/has+动词的2,4,5,there last month.肯定句He said,“What a man can be,he过去分词十其他.4.他们已经参观过这座历史博物馆了。father passed away, and her life became even more difficult.9, 10 他们刚去过桂林。他们是上个月去的。They hawe already visited this history museum.must be. This need we may call self-actualization.” Abraham MaslowHowever,she didn't let these difficulties hold her back.In 2011,主语+have/has+not+动词6.Have you read the book already?否定句1,7,115:believes that human needs are grouped into different levels in a pyramid.she moved to Minneapolis to艾米丽还住在广州吗？6her dreams. Many people的过去分词+其他.你已经读过这本书了吗？没有。她已经搬到深圳了。Food,water,and air come first,followed by safety,love,and esteem(尊doubted her decisions, but she7to stick to being herself. HerYes, I have.Have/Has+主语+动词的重). Self-actualization is at the top.big break came when one of her-DoesEmily still live in Guangzhou?8was chosen for a movie.This是的，读过了。过去分词+其他？Psychologist Carl Rogers agrees with Abraham's pyramid, sayingsong is about loving your own beauty.No, she has moved to Shenzhen.一般肯定回答：7. 1 haven't found my favorite clothes yet.6.今年温蒂和她的朋友们还没去过动物园。self-actualizationtakesplacewhenyou actlikewhoyouwanttobe.HeIn the music world where women often feel pressure to change3,6,8疑问句Yes,主语+ have/has.我还没找到我最喜欢的衣服。Wendy and her friends hwen't been tothinks “self-actualized” people are open to experiences, trust their owntheir bodies,she proudly accepted herself as“a fat Black woman”8.—Has Bob done housework yet?否定回答：feelings and are always looking for new challenges.the zoo this year.9encouraged millions to love themselves too.10hermusic鲍勃做家务了吗？No,主语+ haven’t/hasn't.Nearly 60 years later, Phil Olley sees self-actualization as rare yet7.苏珊的妈妈已经打扫过厨房了。andperformances,she shows that beauty comes in11sizes. SheSusan's mother has already cleaned theoften dances on stagewith other plus-size12Many fans say thatkitchen.“It's about living a life in your own way. It could be the definition ofshe helped them stop feeling ashamed(羞耶) oftheir13II.按要求完成句子或对话。每空一词，缩写success,but of course,that will be different for different people.The story ofthis artist teaches us to be14of who we are.Her【即学即用】visited) the new shopping mall?算一词。It seems far from us, right? In fact, self-actualization isn't so far off asjourney shows we can all write our own stories and overcome theI.单项选择。—No, they haven't. They plan to go next1. Lucy has just bought a new dress.(改为否wethink.Modernpsychologiststhinkthatself-actualizationisnot aboutchallenges when we15ourselves.(C) 1. My sisterher homework, soweekend.定句)beingperfect;it is about accepting ourselves and trying togrowbetter.（B）1.A.diseaseB.loveC.fearD. jokeshe can go to the park now.2.— Does Mike still live in Shanghai?Lucy hasn't bought a new dress yet.Just like gardening, you don't need the most beautiful flowers. You just(A ) 2. A. startedB. rememberedA. hasn't finishedB. have finished—No, he has already(already / never)2. My sister hasn't tried mango milk yet.(改need to know which one you like and how you can make it bloom (开花).C.leftD.missedC. has finishedD. didn't finishmoved to Nanjing.为第三人称复数形式）根据短文内容，选择最佳答案。(B)3.A.joinedB. studiedC. formedD. listened（B ) 2. Look! The floor is wet. Someone3.How many times have you been(be /They haven't tried mango milk yet.(D ) 1. According to Abraham Maslow's pyramid, which shows the need(C)4. A. balancedB.simpleC. hardD. softit.been) to Xi'an?3.Tom has been to Hefei three times.(改为for self-actualization?（ D ) 5. A. HappilyB.NervouslyC. Hopefully D. UnluckilyA.have cleanedB. has cleanedTwice.I went there in 2020 and 2024.( A ) 6. A. followB. loseC. leaveA.Tom hasno friends in his new school.Hewants someone toD. forget一般疑问句)C. are cleaningD. will clean4. —— Is your sister home?Has Tom been to Hefei three times?talk to.(B)7. A. refusedB.choseC.hatedD. protected(A)3. Theya new car.They showedNo, she hasn’t come(hasn’t come/ will4. Have you ever met Mr White before?B.Stephen isvery thirsty after running.Hewants to drinkwater.( D ) 8. A. booksB.awardsC. paintings D. songsit to us yesterday.come) back from school yet.C.Anna feels scared in theforest.Shewants to find a safe place(C)9.A.butB.orYes，Ihave.(作肯定回答)C. andD. yetA. boughtB. haven't bought5.Has Tina finished (finished / finishes)to rest.（B）10.A.WithoutB. ThroughC. AgainstD. BeforeC. hasn't boughtNo，Ihawen’t.（作否定回答)D. buyswriting her book?IL.根据上下文用括号内所给单词的正确形D. Maria practices singing every day because she dreams of being( A ) 11. A. differentB. similarC. smallD. tall(C) 4.——Where is Mr. Brown?No, she hasnt (has / hasn't). She needs式填空，使短文完整、通顺。a great singer.（D) 12.A.modelsB. playersC.scientistsD. dancersHeto the supermarket.two more days.I love music. I started to play the piano（B) 2.What does the underlined word “rare”probably mean?（B）13.A.clothes B. bodiesC. fieldsD.handsHe'll be back soon.III用括号内所给单词或短语的正确形式填A. Not risky.when I was six years old.NowI have alreadyB. Not common.( C) 14. A. fullB. tiredC. proudD. afraidA.has beenB. have gone空，补全句子或对话。C.Very easy.D. Very important.（B）15.A. laugh atB. believe inC. has goneD. will go(1) learned (learn) to play the piano for eight1. ——What's this story about?(C)3.According toPhil Olley,what isTRUE about self-actualization?C. give away D. give upbreakfast for our— I don't know. I haven’t read (not read) ityears.（B）5. My motherAt first, it was very difficult. My fingersA. It is only possible for famous people.family at 7:00 every morning.yet.often(2）hit(hit) the wrong keys（错误的B. It means being perfect and never making mistakes.A.cookB. cooks2.——May I speak to Jack, please?键). My teacher always encouraged me, “It'sC. It means living your life the way you want, not in others' ways.C.cookedD. has cookedPassage 1Self-actualization 说明文—I'm afraid you can't. He has just leftokay! Everyone (3) makes (make) mistakesD.It needs tofollow thepath(道路）successful people tookbefore.重点短语：look away(be) followed byat the top( D ) 6. —— Have you found your toy bear, Susan?(leave) the room.at first."( A ) 4. How does the writer explain self-actualization?take placelook forSo I have to buy a newHave you written(in fact3.(write) anything aboutLast year, I (4) entered (enter) a musicA. By showing what psychologists say about it.one today.the school sports meeting?accept oneselfconcert. I played a simple piece of music.B. By saying only rich people can be self-actualized.L重点句型：..comes first.It seems far from us ..A. Yes, I didB. No, I didn'tNo, I haven't. But I'm going to write ithisMany people liked it! Since then, I (5) howeC. By giving scientific studies with numbers and data.... isn't so ... as ...C. Yes, I haveD. No, I haven'ttonight.become (become) more confident.D.By telling a story about a famous self-actualized person.（B）7.The studentsa football match4.Jack has told(tell) the story so many times.Now I practice for an hour every day. “I(C ) 5. Where is this passage most probably from?I'm getting bored of it!meon the playground yesterday afternoon.still need to learn more,” I tell my friends,A. A history book about famous scientists.Passage 2A star's journey记叙文A.watchB. watched5.Our hometown has changed (change) a lot“but I'm getting better!" Playing the pianoB.A storybook about the life stories of psychologists.重点短语：have a tryhold ... backC. have watchedD. will watchin the past five years.makes me happy.C. A magazine about understanding yourself and growing.doubt one’s decisionstick toII.从括号中选择合适的单词或短语填空，使That's true. It's becoming more and moreD. A newspaper report about a new study on successful people.write one's own storyovercome the challenges对话完整、通顺。beautiful.本版内容均由Nina提供重点句型：..waschosenfor.. teaches us tobe..1. —— Have your parentsvisited(visit /本版内容均由Amanda提供

一匝数n=100匝、内阻开始滋场，磁场的y轴正向的勺质量为m、TF3，周期为6m

学科网组卷网K.CONzujuan.xkw.com16．如图所示，被压到水里的球上浮，并弹离水面。下列说法正确的是（)A.该球的密度等于水的密度B.球露出水面前受到的浮力保持不变C.整个过程中，水对杯底的压强保持不变D.整个过程中，杯子对桌面的压力保持不变17.2025年亚冬会在哈尔滨举行，我国选手林孝获短道速滑男子500米金牌。如图所示是他全力通过弯道及获胜后站立在水赛场中央大声欢呼的情形。下列说法正确的是（）eamNLA.运动员通过弯道的过程处于衡状态B.运动员站立在水赛场中央时处于衡状态C.站立时他受到的重力和冰面对他的支持力是一对相互作用力D.站立时他对冰面的压力和冰面对他的支持力是一对衡力18．“五一”假期，小敏在游乐场观看杂技表演，有一项跳板节目引起了她的注意，如图所示。若支点在跳板的中央，当质量均为60kg的两名男演员同时从1.5m高处由静止跳到跳板的同一端时，静立于跳板另一端质量为50kg的一名女演员向上弹起3m 高。若不计空气阻力，则该跳板的机械效率为（）A. 60%B. 70%C. 45%D. 83.3%三、实验题（第19小题6分，第20小题8分，第21小题10分，共24分）19.朱瑞同学在探究“杠杆衡条件”的实验中，使用的器材有：杠杆、弹簧测力计、支架、刻度尺、细绳、重力相同的钩码若干。第4页/共10页

烧、氮气的性质与用途等。一般来说，合金的硬度大于其成分金属，A项正确；当有大量黑烟产生时，说明燃烧不充分，此时应调大灯罩的进风口，提供充足的氧气，使燃料充分燃烧，B项正错误；稀溶液可能是不饱和溶液，可能是饱和溶液，稀溶液和不饱和溶液属于交叉关系，D项8.C【解析】本题考查合金的性质、燃料的充分燃氧化物是指由两种元素组成，且其中一种是氧元素的化合物，故氧化物一定是含氧化合物，但含氧化合物不一定是氧化物，A项正确；原子由原子核和核外电子构成，原子核和电子是并列关系，B项错误；纯碱是NaCO的俗称，NaCO属于盐，碱和纯碱属于并列关系，C项6.A【解析】本题结合劳动实践中的化学知识考查氢氧化钠除油污的原理、活性炭及复合材料A【解析】本题考查化学概念间的包含关系。保持水，A项错误；在烧杯中溶解土壤时用玻璃棒搅拌，使土壤充分溶解，B项正确；过滤时要用玻璃棒引流，C项错误；用湿润的pH试纸测定溶液的pH相当于将溶液稀释，可能会使测定的性质与用途等。氢氧化钠去除油污的原理是氢氧化钠能与油脂反应，A项错误；活性炭具有B【解析】本题考查化学实验基本操作。量筒读数时，视线要与量筒内液体凹液面的最低处量：CgH2O

(4）25（2分)(5）MoS2（2分)20.（10分）（1）分液漏斗（2分）(2)防止空气中的氧气进入三颈烧瓶中（防止乳酸亚铁被氧化或防止空气进入三颈烧瓶中均得分)（2分）(3) FeCl2 +(CH3CH(OH)COO)2Ca + 2H2O=(CH3CH(OH)COO)2Fe·2H2O+CaCl2(4）cdb(2分)（5）AC（每个1分，共2分，评分标准同17（5））21．（12分）OHOHOH（1）羧基（1分）；(2分）CH2—CH—CH2（2）AB（每个1分，共2分，评分标准同17（5））浓硫酸(3) C17H35COOH + C2H5OHC17H35COOC2H5+H2O（2分）（漏写水得1分，物质写错△不得分，条件写错扣1分)H3CCOO-CH2(4） HCCOO-CH（2分）；CHO(5） HCOOCH(CH3)2 HCOOCH2CHCH : CH3CH2COOCH3（每个1分，共3分，多写CH3COOCH2CH3扣1分）

原2中国8用。下列事实中支持皮素能够提高小鼠特异性免疫功能的是A.皮素显著提高了小鼠巨噬细胞清除病原体的能力,从而减少肺部炎症反应B.皮素促进小鼠淋巴结中 T淋巴细胞的增殖分化,提高对病原体的识别能力C.皮素增强肺部细胞线粒体中呼吸酶的活性,改善烟雾导致的细胞代谢障碍 D.皮素增加呼吸道黏液分泌,增强黏膜对烟雾颗粒和病原体的物理屏障作用5.《农桑辑要》中记载：“苗长高二尺之上,打去冲天心（摘除顶芽）;旁条长尺半,亦打去心。叶叶不空,开花结实。”下列对该措施原理的叙述,正确的是A.使侧芽处赤霉素减少,促进侧枝伸长β.减少顶芽产生的生长素对侧芽发育的抑制C.抑制乙烯合成,延缓叶片衰老以增加光合面积 D.减少生长素通过非极性运输至侧芽,加速侧芽发育6.某班级同学调查一块草地中蒲公英的种群密度的结果如表所示,其中,N;样方(1 m×1 m)中蒲公英的分布情况如图所示。下列叙述正确的是样方N2N3N4Ns通不间大）就不OO种群密度/OO7OO87(株·m-²)OOOA.用样方法求出的种群密度与实际密度完全相同B.统计N样方的蒲公革个体数量应是8株C.应在蒲公英分布较为密集的地方选取样方^D·该草地的蒲公英种群密度为8株·m鱼塘养殖的鲢鱼的(K值－种群数量)/K值与其种群数量的关系如图所示。下列叙述错误的是s0.75S2Ss040080012001600鲢鱼数量/条生物学试题第2页（共8页）23mm f/1.75 1/200s1S03272vivo x90ZEISS2025.07.03 19:03

生物学座位号合肥一六八中学命题中心考生注意：1.试卷分值：100分，考试时间：75分钟。3考场号试题卷、草稿纸上作答无效。的答号一、选择题（本题共15 小题，每小题3分，共45 分。在每小题给出的四个选项下学中，只有一项符合题目要求。）1.低密度脂蛋白是一种血浆脂蛋白，主要用于运输胆固醇，胆固醇过量时会沉积在血管壁，导致动脉内膜形成粥样斑块。低密度脂蛋白通过与细胞表面受体线结合，然后被运输到细胞内，从而降低血浆中胆固醇含量（如下图所示）。下列名有关叙述错误的是（封姓受体再循环低密度脂蛋胆固醇被释放白被释放蛋白质被降解低密度脂蛋白5.级A.动物细胞膜上的磷脂与胆固醇的组成元素种类存在差异班级年叙述错误的是（生物学试题第1页（共10页）