Brain-computer interfaces are possible because of two facts.The first is that yourbrain contains hundreds of tiny maps.Each represents specific features of your physicalfeelings and intended actions.And crucially,the basic set of brain maps and theirlocations within the brain are very similar across individuals.Thanks to their specialized functions and universal locations,brain maps are idealentry points for BCI technologies.Picking up signals from a brain map is only the firststep in making a useful BCl.Although the location of a brain map is the same acrossindividuals,the details-what patterns of activity within the map mean-differ from person toperson.In a sense,the unique features of your specific brain maps serve as a kind ofencryption ()safeguarding your specific thoughts and feelings from would-bespies.That brings us to the second fact that makes BCls possible.Thanks to advances inmachine learning,scientists have developed programs that can learn to recognize keypatterns in a vast sea of numbers.They train these programs to decode (brainsignals by feeding them tons of examples.Researchers developing BCls often createsuch examples by instructing an individual to think specific thoughts at specific times,creating a neural curriculum for the program to learn from.While the universal features and locations of brain maps make them obviousentrances for BCls,the unique features of your brain maps tend to protect them fromspying eyes.In cases where BCls have successfully read specific thoughts or intentionsfrom a brain,it has been with the permission of the individual whose brain was beingread.But there are surreptitious ways to train decoders on your brain without yourknowledge.This can happen if your neural data falls into the hands of companies withdetailed information about your activities.Like all technologies,brain-computer interfaces are not necessarily good or bad.Yetwhile harvesting the benefits of BCls,we need to ensure that we have the means toprotect ourselves from corporations with every motive to take advantage of thistechnology for their financial gain.27.What can we learn about brain maps?A.They carry unique messages.B.They can process encrypted signals.C.Their functions vary from person to person.D.Their locations reveal human thinking patterns.高三英语第6页（共11页）

第Ⅱ卷非选择题（共60分）二、非选择题（本题共5个大题，共60分)21、(12分)化学品的合理使用，是每一位生产者和消费者的贵任。(1)工业上以铝土矿（主要成分为A2O3)为原料生产铝，主要过程如下所示：铝土矿浓NaOH溶液过量C0,脱水电解Al(OH)3A1203(已粉碎、筛选)溶解溶液A请写出得到溶液A的离子方程式：电解熔融Al2O3得到A1的化学方程式：(2)煤是人类使用的主要能源之一，也是重要的化工原料。煤实验室模拟煤的干馏实验如图所示。①得到的可燃气体主要有(写两种即可)，固体加热可燃主要有气休②煤焦油经过分馏可以得到物质(茶)，1mol茶与足量H2反应得到的加成产物的分子式为(3)生产精细化学品是当代化学工业结构调整的重点之一，水层、煤焦油而食品添加剂属于精细化学品。请将下列常见食品添加剂按照其功能进行分类（填序号）。A.谷氨酸钠B.碳酸氢钠C.硫酸钙D.碘酸钾E.苯甲酸钠F.维生素CG.柠檬黄①着色剂：②增味剂：③膨松剂：④凝固剂：⑤防腐剂：⑥抗氧化剂：⑦营养强化剂：22、(12分)苯乙烯在一定条件下有如图转化关系，根据框图回答下列问题：CH=CH2H,O0B9催化剂，4催化剂，△浓疏酸，4E(高聚物)0(1)苯乙烯中最多有个原子共面，其与足量氢气在一定条件下充分反应生成的物质CH,CH;的一氯代物有」种（不考虑立体异构）。(2)物质B的官能团名称是A→B的反应类型为反应，A+C→D的化学方程式为：(3)生成高聚物E的化学方程式为：(4)物质C与甲醇的酯化产物分子式为】该酯化产物的同分异构体中，满足以下情况的共有种（不考虑立体异构）。①含苯环；②能与NaHCO,溶液反应生成CO2。5/8

第5章物质结构元素周期律学生/用A节】与同学讨论基础上提出探究的问题和假设，依应用提升据假设提出实验方案，独立完成实验，收集实1.正误辨析验证据，基于现象和数据进行分析并得出结(1)酸性：HC1O4>H2SO4>H3PO4(论，交流自己的探究成果。(2)氢化物稳定性：HF>HCI>H2S>SiH4Cy技巧点拨>PH(3)第三周期非金属元素含氧酸的酸性从左金属性、非金属性强弱的判断标准到右依次增强金属性、非金属性强弱的判断是常考内容之(4)第二周期元素从左到右，最高正价从十1,其本质为原子越易失电子，金属性越强（与原递增到十7子失电子数目无关)；原子越易得电子，非金属性(5)元素的原子得电子越多，非金属性越强；越强（与原子得电子数目无关）。具体方法如下：失电子越多，金属性越强()(6)元素的氧化物对应的水化物酸性越强，①在金属活动性顺序表中越靠前，金属性非金属性越强；碱性越强，金属性越强越强()②单质与水或非氧化性酸反应越剧烈，金属性越强(7)元素的气态氢化物越稳定，非金属性越③单质还原性越强或阳离子氧化性越弱，强，其水溶液的酸性越强，还原性越弱金(金属性越强属④最高价氧化物对应水化物的碱性越强，(8)第二周期非金属元素的气态氢化物溶于性金属性越强水后，水溶液均为酸性()⑤若X++YX+Y+,则Y比X的(9)电子层结构相同的离子，其半径随原子金属性强序数的增大而减小⑥元素在周期表中的位置：左边或下方元2.(2022·浙江卷)X、Y、Z、M、Q五种短周期素的金属性强主族元素，原子序数依次增大。X的核外电子数等于其周期数，YX分子呈三角锥形，Z①与H2化合越容易，气态氢化物越稳定，的核外电子数等于X、Y核外电子数之和。非金属性越强M与X同主族，Q是同周期中非金属性最强②单质氧化性越强或阴离子还原性越弱，的元素。下列说法正确的是()非金非金属性越强A.X与Z形成的10电子微粒有2种属性③最高价氧化物对应水化物的酸性越强，B.Z与Q形成的一种化合物可用于饮用水非金属性越强的消毒④元素在周期表中的位置：右边或上方元C.M2Z与MQ的晶体类型不同素的非金属性强D.由X、Y、Z三种元素组成的化合物的水溶液均显酸性3.(2022。华师大一附中)W,X、Y、Z为原子序数依次减小的短周期主族元素，且只有X、Y位于同一周期。这四种元素形成的某种化125

Bob went to his parentsⅡ.用所给单词的适当形式完成句子。to their understanding parents,teachers andl.Bob realized(认识到)that he has_understandingfriends.Some would like to do some exercise(understand)parents.to relax,like running a few miles.And others2.They said it was careless (careful)of them not tochoose to travel to another place.What else canfind his problem.they do?If they have psychological(心理的)3.His father was fat before,and he lost weightproblems,they can ask doctors or experts for肥)by himself(him.help.Don't be afraid of problems.They are4.He said he had a lot of experience (experience)and that he could help Bob lose weight.normal and you can always get some help5.Did Bob trust (trust)his father?Of courseyes.Bob learned a lot.语法选择Ⅲ.根据汉语提示完成句子，每空一词。p1.父亲建议鲍勃每天和他一起锻炼。He Zilong comes from Lishui,Zhejiang.His father advised Bob to exercise withHe 1 his arms when he was 6.Then hehim every day.could not go to school 2 he was unable to2.他说如果鲍勃吃垃圾食品，他就会生气。write.He said if Bob ate junk food,he wouldbe angry with him.(B)1.A.will loseB.lostC.loses3.鲍勃认识到自己犯了个错误。(C)2.A.unlessB.ifC.becauseBob learned that he madeamistakeHowever,after three months of hard work,4.他不应该把烦恼留给自己。he learned how to write words using his feet 3He shouldn't keep the problem to himselfand he went back to school.Writing by footection5.他解决了问题，家里的每个人都很开心。三was 4 difficult thing for him.His foot wouldHe solved the problem,and everyone inthe family was happy.feel numb(庥木的)after writing for 155.(C)3.A.successB.successfulC.successfully(本期练I-Ⅲ题连起来是一篇完整的语篇哦！你(A)4.A.aB.anC.the注意到了吗？)(B)5.A.minuteB.minutes C.minute'sIV.阅读Section B中的短文，然后完成下图，每空词数不限。Later,he started to practice 6 by holding apencil in his mouth.Because he couldn't 7parentsLaura Mills,a teenagerdrooling(流口水)in this way,.he did his homeworkbecause she thought they would be 4.angry Butectionshe talked to them about it,they wereslowly.When he turned 11,he began tryingand got her a new walletunderstandingr friendscalligraplty )Using a brush to write is much8 than using a pencil."When I feel tired,I take aRobert Hunt,She learned:Problems and worries are 7.normalrest.I practice 9 least 8 hours a day,"he said.problems and we should always tryin lif论.solve them.(A)6.A.writingB.to writeC.writeFind someone you trust to talk(B)7.A.to stopB.stopC.stopping(B)8.A.hardB.harderC.the hardestConclusion:Sharing a problem is like cutting it in half(A)9.A.atB.inC.for词汇串烧In20l4,he started livestreaming(直播)andSelfmaking short videos to share 10 experiencesSome teenagers feel upset about theirin calligraphy.He wanted to tell people thatschoolwork.And some don't know how tonothing was impossible by telling his stories.hecmake friends.What should they do to solve theproblems?Some teenagers would like to talk(C)10.A.himB.heC.his

甲骨文逐步发展成金文、篆书、隶书，最后发展成标准汉字。o.to…是固定搭配，意为从.到..”，故填t0。64.考查副词。句意：同上。分析句子结构可知，设空处作状语，应用final的副词finally,意为“最终地”。故填finally。65.考查形容词。句意为：如今中国人普遍使用标准汉字，这些字的传统版本已经逐渐简化和现代化。分析句子结构可知，设空处后的version为whose引导的定语从句的主语，为名词，需要用形容词修饰，故填traditional。.第三部分写作第一节：Dear schoolmates,We can't deny that it is common to see some uncivilized practices in our school,like people speaking loudly ina library or a classroom and wasting food without restraint.Therefore,I would like to advocate a campaign against such behavior.Tougher regulations on public areasmay help students behave themselves.Besides,it would also be sensible to put up more banners of encouragementto act good deeds,which can arouse students'awareness to spread the beneficial habits.As a teenager of the new era,let's act jointly to make the glory of civilization shine in every corner of ourschool.【导语】本篇书面表达属于应用文。假定你校正在举办主题为“文明惯满校园'的倡议书征文活动，请你写一份倡议书投稿，内容包括：1.发出倡议的背景：2.倡议内容与理由。【详解】1.词汇积累普遍：common-→general因此：therefore-→thus此外：besides--→in addition有益的：beneficial--helpful2.句式拓展简单句变复合句Therefore,I would like to advocate a campaign against such behavior.Tougher regulations on public areasmay help students behave themselves.Therefore,I would like to advocate a campaign against such behavior because tougher regulations on8

左planets lined up,with the sun on theeand moon on the right,both pictured larger insize than normal.不This year the competition attracted-iver 4,500 entries from 75 countries.Wang'sphoto fook first prize in the Young Competition category,an award for photographersaged 15 and under.He entered the competition in February-At the time,he was not yet16."I saw photos taken by other photographers in the Young Competition category,andsome looked similar to mine,so I thought,why not try?"he said.Wang developed an interest in astronomy after reading about the subject as a child.suhwHe taught himself astrophotography by reading books and by searching online.lle useda second-hand telescope that his parents had given him."The first time I used it,I sawthe moon.It was splendid.I was thrilled!"he said.Sometimes,he would he so immersedin his observations that he wouldn't go downstairs to fetch a coat.Other times,he stoodfor hours under the hurning sun to get the perfect shot.In addition to the fame,Wang's biggest bonus is the 1,500 pound (S2.023)privemoney,which will allow him to buy a new camera."I will keep on.Astronomy will be alifelong hobby.It would be great if I could help popularize science in the future,orbecome an astronomy teacher,"he said.His passion touched the judges.Sheila Kanani said,"As a planetary scientist.Iapplaud the work that has gone into creating this photo."24.What is Wang Zhipu's winning photo like,according to the passageA.Seven planets,the sun and the moon are in a straight line.B.Seven planets line up with the sun and the moon on bach side.C.Seven planets,the sun and the moon are larger than normalD.Seven planets are much larger than the yan and the moon.25.What inspired Wang Zhipu to enter the dompetition?A.Popularity of the competition.望C.Other competitors'photographs.B.His desirs to win the prizeD.Ilis parents'encouragement.26.Which of the following can replacethe underlined words in Paragraph 4?A.Trapped in.B.Absorbed in.C.Connected with.D.Exposed-to.27.What do you think the passage most probably is?A.Ashort biography.B.An online post.C.A diary eatyD.A news report.Teenagers around the world are familiar with the great pain of boredom.And everyerent is fami相liar with the sounds of groaning(咕破的)kids,sulking(生何气)in their·room or pacing aimlessly around the house.But sometimes,it's this very sense ofboredom that can inspire creativity and create fast-growing trends.高三英语试题第5页（共12页）

(C)53.What does the underlined word "it"(C)48.If a Philippine student and a Japaneserefer to?student attend the summer camp,they shouldA.Improving his skills in painting.payB.Teaching more children to paint.A.S125B.$250C.$295D.$340C.Helping others with his talent for painting.D.Creating excellent paintings of differentstyles.gg(C)54.Which of the following is TRUE?(B)49.How do teenagers apply for the summerA.Arsh raised $10,000 for a localcamp?children's hospital.A.Make a phone call to the office.B.Some organizations gave much supportB.Send the application form by email.to children like Arsh.C.Go to the Subic Park Hotel in person.C.Arsh won the award for the good he hasD.Upload the application information to itsdone for society.website.D.Some people were in doubt how Arshdealt with the money he got.gg(D)50.What can we learn from the poster?(A)55.What's the purpose of this passage?A.People of all ages can take part in theA.To introduce a kind-hearted boy tosummer camp.readers.B.People from any country can apply for theB.To make readers become interested insummer camp.painting.C.People can only call to learn more aboutC.To ask readers to care for old peoplethe summer camp.and children.D.People should apply two months before theD.To encourage readers to perform acts ofsummer camp starts.kindness.ggBd(A)56.What idea did the swan have?(A)51.Where does Arsh come from?A.Competing with the crow.A.America.B.England.B.Making friends with the crow.C.Japan.D.India.C.Teaching the crow to fly faster.D.Learning flying skills from the crow.(A)57.What did the swan do in the first stage?(B)52.Why did Arsh decide to sell hisA.He did nothing.paintings?B.He flew over the sea.A.To give his family a better life.C.He followed the crow.B.To offer help to people in need.D.He flew in different ways.C.To collect money for an art project.(C)58.From the underlined sentence we canD.To build a nursing home for old people.see the crow feltA.tiredB.sad C.sorryD.angry

液中溶质为氢氧化钠和碳酸钠，若溶液没有变红，说分析具体设问：(1)A为碳酸氢钠，其化学式为明B溶液中溶质只有碳酸钠NaHC0,。(2)D为水，水可用作溶剂等。(3)4.(1)Na2S04(2)赤铁矿(3)放热（4)3H,S0,+A(NaHCO3)与B(HCI)的反应过程中可观察到有气Fe203=Fez(S04)3+3H,0泡产生。(4)G(碳酸钠)与B(HCI)反应生成氯化【解析】A的稀溶液可使石蕊溶液变红，说明A的稀钠、水和二氧化碳，据此写出反应的化学方程式。溶液显酸性，且与氯化钡溶液反应生成不溶于酸的6.(1)4p+50,点槛2P,0,(21Cu0溶液变红白色沉淀，说明A的稀溶液中含有硫酸根离子，则(3)AgNO3+HCI一AgCI↓+HNO3复分解反A为稀硫酸，可用于制肥皂、石油冶炼、造纸等，则应(4)4（或四）B为氢氧化钠。结合转化关系及现象分析剩余物【解析】(1)若A为气体，B在A中燃烧产生大量白质。结合A+B→E+G,无明显现象，由于稀硫酸与烟，则A为氧气，B为红磷。(2)若A为酸，则A为氢氧化钠反应生成硫酸钠和水，则E和G分别为硫盐酸，A与B在常温下反应，观察到溶液由无色变为酸钠和水中的一种；结合A+C→D+E,红棕色固体蓝色，则B为氧化铜；A为盐酸，紫色石蕊溶液遇酸溶解，溶液由无色变为黄色，氧化铁为红棕色固体且变红。(3)若A为盐溶液，则A为硝酸银溶液，A与稀硫酸与氧化铁反应生成硫酸铁和水，则C是氧化B反应观察到产生白色沉淀，由于硝酸银和盐酸反铁，根据A与B反应、A与C反应都生成了E,说明应生成氯化银白色沉淀和硝酸，则B为盐酸。(4)若E为水，则G为硫酸钠，D为硫酸铁：结合B+DA与B能发生置换反应，置换反应是指一种单质和→G+F,溶液黄色消失，生成红褐色沉淀，硫酸铁与中考压轴一种化合物反应生成另一种单质和另一种化合物的氢氧化钠反应生成硫酸钠和氢氧化铁红褐色沉反应，分析题干已给物质，符合要求的是：铁粉与盐淀，因此F为氢氧化铁。酸反应生成氯化亚铁和氢气，铁粉与硝酸银溶液反分析具体设问：(1)G为硫酸钠，其化学式为与新应生成硝酸亚铁和银。Na,S04。(2)磁铁矿的主要成分是四氧化三铁，赤铁分析具体设问：(1)红磷在氧气中燃烧生成五氧化二法矿的主要成分是氧化铁。(3)A与B的反应，即稀硫磷，据此写出反应的化学方程式。(2)B为氧化酸与氢氧化钠反应生成硫酸钠和水，该反应属于中铜，其化学式为Cu0。(3)A与B反应的化学方程式和反应，反应过程中放热。(4)稀硫酸与氧化铁反应为AgNO,+HCl一AgCl↓+HNO,该反应是两种化生成硫酸铁和水，据此写出反应的化学方程式。合物互相交换成分，生成另外两种新的化合物且有5.(1)NaHC0,(2)作溶剂（合理即可）(3)有气泡沉淀生成，属于复分解反应。(4)由上述分析可产生(4)Na,C03+2HCl—2NaC+H,0+知，A与B的组合有：A是铁粉、B是盐酸；A是盐C02↑酸，B是铁粉；A是铁粉，B是硝酸银溶液；A是硝酸【解析】根据文字描述画出反应关系图：银溶液，B是铁粉，共4种组合。7.(1)①前置换反应②C0二氧化碳分子(2)①酸②C02+2Na0H—Na,C03+H,0【解析】(1)若甲、乙物质类别相同，且可以相互转FD化。①在金属活动性顺序中排在氢前的金属可以置A~G分别由C、H、O、Na、CI中的两种或多种元素组换出稀盐酸或稀硫酸中的氢，若乙为氢气，则甲一定成。A是治疗胃酸过多的一种盐，则A为碳酸氢钠。排在氢前；乙（氢气）转化为甲（活泼金属）的反A与B反应生成C、D和E,且D和E均为氧化物，碳应，可以是氢气与氧化铁等金属氧化物在高温条件酸氢钠与盐酸反应生成氯化钠、水和二氧化碳，其中下反应生成铁和水，该反应符合“单换单”的反应特水和二氧化碳均为氧化物，符合该题干要求及元素征，属于置换反应；②甲、乙为组成元素相同的气组成，由此可知B为盐酸，C为氯化钠，D和E分别体，且乙可用于灭火，则乙是二氧化碳，甲是一氧化为水和二氧化碳中的一种；F是一种碱，则F为氢氧碳，甲的化学式为C0,保持乙化学性质的最小粒子化钠，E与F反应生成G和D,由于二氧化碳与氢氧为二氧化碳分子。(2)若甲、乙属于不同物质类化钠反应生成碳酸钠和水，则E为二氧化碳，D为别，甲俗称纯碱，则甲是碳酸钠，化学式为Na,C03水，G为碳酸钠。①若乙所含的元素种类在甲中都有，则乙是二氧化26万唯数理化QQ交流群：668435860

鞍山市普通高中2022-2023年度高三第二次质量监测英语参考答案第一部分：听力1-5 BACCB610 ABACC11-15 ACBCB16-20 ACABB第二部分：阅读理解第一节：21—25 ADBDC26-30 DBABC31-35 CBCAD第二节：36-40 CFGDA第三部分：语言知识运用第一节：完形填空41—45 BCCDA46—50 ADCAD51-55 BDBAC第二节：语法填空56.whom57.taller58.named59.with60.the61.was used62.appearance 63.shows64.to express65.ages第四部分：写作第一节：应用文写作possible versions:范文一Dear Steve,I'm happy to hear that you'll participate in the Chinese speech contest themed "Studyingin China".The following are my suggestions.As for the topic,I'd like to recommend Chinese traditional culture,as it introduces a realtreasure of human history.Besides,having studied the courses systematically,you're sure tohave a deep understanding of Chinese traditional culture.To do it well,you'd better selectimpressive examples to attract the attention of the judges.Furthermore,practice your spokenChinese in order to express yourself more clearly and fluently.I sincerely hope you'll find my suggestions useful.Yours,Li Hua英语参考答案第1页（共9页）

团GLOBAL EIGLS3.希望这些发现将有助于保护其他地方的水源。(It is hoped that ...学美径报社It is hoped that these findings will help protectwater sources elsewhere.EARNING ENGLISHA34.布朗太太一直在收拾孩子们乱扔的东西。(pick up)新课程高二课标版Mrs Brown is constantly picking up the things the(选择性必修1)children leave lying around.第3期5.虽然汤姆又瘦又小，但他的声音却很响亮。A3版(though引导的让步状语从句)Though Tom is thin and small,he has a veryloud voice.SELF-CHECKINGPart 2Learning About LanguagePart 1Reading and ThinkingI,用括号内所给动词的适当形式填空1.Making (make)soup is a good way of using up leftoverI.根据首字母或汉语提示，写出单词的正确形式。vegetables.A31.The rain had stopped and a star or two were visibleA32.It is no good ignoring (ignore)your health and well-being for the sake of work.版over the mountains.2.The Mississippi River forms a natural boundary between版3.It is a waste of time warning(warn)Bob-he isTennessee and Arkansas.determined to go his own way.3.China has a vastterritory and a large population.4.New research shows that sleeping (sleep)in a hot room4.We came upon a little cottage just on the edge()can affect the thinking ability of even healthy youngof the wood.adults.5.From the top of the hill there's a beautiful prospect over5.Being selected (select)as a volunteer for the Asianthe valley(山谷)，Games is a great honour for my daughter.Ⅱ，用括号内所给单词的适当形式填空。1.Smoking is banned (ban)in our restaurant,so pleaseⅡ.用动词-ing形式短语作主语改写下列句子。put out your cigarette right away.2.All persons aged 16 or under,if not accompanied1.It is wonderful to travel by car,but my son always(accompany)by an adult,are not allowed to enter thegets carsick.A3theatre.A3Traveling by car is a wonderful thing,but my son版3.After thinking the suggestion over,Mr Smith decided版always gets carsick.not to adopt (adopt)it.2.It is strongly recommended to adopt a positive4.I feel very blessed (bless)that I have my familyattitude towards life.around me every day and that we all work so wellAdopting a positive attitude towards life istogether.strongly recommended.5.All night the wind and rain buffeted(buffet)thesmall tent,causing me to stay awake.Ⅲ.用适当的介词或副词填空。3.It would hardly be possible to complete the high1.The Greens are always onthe move because ofspeed railway in winter.Mr Green's job,and their children receive little formalCompleting the high-speed railway in wintereducation.would hardly be possible.2.In order to arrive at our destination before noon,weA3must set out/off early tomorrow morning.A34.It is both challenging and rewarding to work in版the space station.3.Instead of living off his parents,Henry,an 18-year-版old boy,supports himself by doing some part-time jobs.Working in the space station is both challenging4.Apart from Chinese,other subjects such as fine arts.and rewarding.music and physical education will also attach more5.It is highly important to consider how technologyimportance to traditional Chinese culturecan improve our products or services.5.At that time,humans created and left behind manyConsidering how technology can improve ourcultural relics.products or services is highly important.Ⅲ.用括号内所给动词的正确形式完成下列短文。V.根据括号内的提示，翻译下列句子。1.这段旅程，无论是开车还是坐火车，行程都不到1.Learning (learn)English is a lifelong processthat requires devotion and practice.2.Mastering四个小时。(whether..or..)(master)the English language can open up manyA3The journey,whether by car or train,takes underA3opportunities,such as traveling,studying abroad and版four hours.版2.二十年前这个地区还是一片沙漠，但现在已经变communicating with people from different cultures.If you want to learn English well,you should成了一片广阔的树林。(used to do/be sth)spend more time on it.3.Listening (listen)toThis area used to be a desert twenty years ago,butEnglish music,4.watching(watch)English moviesnow it has turned into a vast woodand 5.reading (read)English books are all greatways to immerse(使沉浸于)yourself in the language

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单句练建议用时：50分钟答案见P68【.在空白处填入括号内所给单词的正确形式。1.(2022年全国甲卷阅读理解C篇改编)Ginni has had a deep love for travel since herchildhood.She has already toured in the UK,but always longed(explore)further.2.(2022年新高考I卷阅读理解C篇改编)The elderly residents(居民)in care homes inLondon are being given hens to look after to stop them(feel)lonely3.(2022年新高考Ⅱ卷阅读理解B篇改编)I had brought a children's book(read),sitting with my 2-year-old grandson on a sofa over the Spring Festival holiday.4.(2021年全国甲卷阅读理解A篇改编)It was an extremely cold winter's evening and(freeze)fog hung in the air.5.(2021年全国甲卷阅读理解C篇改编)When|returned to London in2004,I found myselfwandering down to Southbank and(spend)hours there.6.(2021年全国乙卷阅读理解D篇改编)annoy)by the level of distraction in hisoffice,my interviewer said,"That's why I have a membership at the coworking spaceacross the street-so I can focus.7.(2021年新高考I卷阅读理解C篇改编)Millions of acres of wetlands were dried(feed)and house the ever-increasing populations.8.(2021年新高考Ⅱ卷阅读理解D篇改编)For Texas cattleman Pete Bonds,it's increasinglydifficult(find)workers interested in watching cattle9.(2020年全国I卷阅读理解C篇改编)A research shows that race walking shares manyfitness benefits with running,while most likelycontribute)to fewer injuries10.(20l8年全国Ⅲ卷阅读理解D篇改编)I found the pre-holidays a good timeencourage)young children to donate their less-used things.11.Instead of(work)in big cities,more young people are going back to theirhometowns to join the e-commerce industry.12.The manager said that his company would develop new online products.(mark)a major transformation of the company.13.The reason why stair climbing is effective inlower)blood sugar is that ittargets large muscles.14.The man has wayspull)the art out of scientific subjects,which he says oftentakes time to solve.15.Local people are divided on some of the changesannounce)in the courseweeks after the government banned the course.16.Karen Chee hosted a talk show and it took her 20 minutesshow her ownstand-up routine to start off17.It is crucial for teachers to use the simplest,clearest language whenteachthe youngest children.128

23-24上七年级贵州第4期大报听力材料第1版其余版面参考答案1.W:Is this your ruler,Peter?特别关注M:No.It's my cousin's.参考读有所思2.W:Hi,Bob.Is the girl in a jacket your sister?1.Yes,I do.Because they're relaxing and力M:Yes.Her name is Jane.interesting./..3.W:David,who are they in this photo?2.I like playing basketball./..M:My parents,my sister and I.4.W:Here are three oranges.Are they yours,Kevin?悟有所行M:Yes,they are.a.1-2 CD5.W:Can you spell your English name?b.1.middle 2.200 3.interestingM:Yes.D-A-V-I-D,David.时尚阅读6.M:Your keys are here,Anna.⑧1.T2.T⑧W:They are not my keys.They are Frank's.第二节根据所听句子，选择最佳应答。读一遍。B.I'm OK.第4版(C)7.A.Good morning!馨英语加油站C.Nice to meet you,too.1-5 EABCF(A)8.A.Thanks.You,too!B.Bye.C.I'm fi ne.答案6.147.black8.Rebecca力(A)9.A.Smith.B.I'm fine.C.Yes,I am(B)10.A.Yes,it is.B.No,she isn't.9.Eric Jr.'s brother10.Five.11-14 ABBCC.No,I'm not.(C)11.A.It's a photo.B.I'm Cindy.C.She is my cousin(B)12.A.N-U-M-B-E-R.B.It's132-578.gC.It is brown.听力材料苦美浮报社7.Nice to meet you.8.Have a good day!EARNINGENGLISH力9.What's your last name?10.Is she Alice?第4期七年级贵州小报11.Who is the girl in the photo?能力提升12.What's your telephone number?(Units 1-2)③第一节根据对话内容，选择相应的图片。读一遍。第三节根据对话内容，选择最佳选项完成句子。读两遍。(B)13.Grace isA.Lily's friendB.Eric's friend(A)1.A力C.Eric's sister力(C)14.Dale's telephone number isA.554-693B.554-236C.554-293B)2.A(A)15.is in the middle of the photo.A.SallyB.KateC.Tom(B)16.Alex can spellA.O-R-A-N-G-EB.F-A-M-I-L-Y厚(C)3.A⑧C.M-A-P听(A)17.has(有)adog.(C)4.AB巧A.Jack's grandpaB.Jack's fatherDavidDaleC.Jack(C)18.The girl's fi rst name is(A)5.AA.GinaB.KellyC.Kate(B)6.A

二、非选择题（本题包活4小题，共55分。）16.(14分)废旧太阳能电池CIGS具有较高的回收利用价值，其主要组成为Culo.sGao.sSe2。某探究小组回收处理流程如图：H2S04、H202空气混合溶液氨水SOCLNH;废旧高温烧渣酸浸浸出液调pH滤渣回流滤液Ⅱ浓缩GaCl高温气->GaNCIGS焙烧氧化过滤过滤结晶相沉积凝华Se02滤液I滤渣inCl3回答下列问题：(1)硒元素(Se)位于第4周期，与硫元素同主族，Se的原子序数为傢(Ga)和铟(In)位于元素周期表第IIIA族，CuIno..sGao.Se2中Cu元素呈价：(2)“酸浸氧化”发生的主要氧化还原反应的离子方程式为(3)己知：25C,KNH3H20)2.0×10-5,Ksp[Ga(O3]≈1.0x10-35,Kp[n(OD3]=1.0×10-3。当金属阳离子浓度小于1.0×10-5moL时沉淀完全，n3*恰好完全沉淀时溶液的pH约为(保留一位小数)；为探究Ga(OH)3在氨水中能否溶解，计算反应Ga(OH3S)+NH3H2O一[Ga(OH)4]厂+NH4+的c([Ga(OH),衡常数K=(已知：Ga+40 [Ga(OHD),K=cGm-co1.0x109(4)“回流过滤”中加入的S0C2是一种液态化合物，极易与水反应，写出S0C2与水反应的化学方程式S0C12的作用：①将氢氧化物转化为氯化物；②(⑤)“高温气相沉积”过程中发生反应的化学方程式为17.(11分)无水CC可用于制铬酸盐、催化剂等。实验室制备无水CrCL的反应原理为：C,0,+3CC,720℃2CrC6+3C0C.相关实验装置如图（夹持装置略）.瓷舟（内装C0)无水CaCl2热水NaOH溶液B高三化学试卷第5页（共8页)

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高三·政治·大题突破五·参考答案1.[参考答案]①在《中华人民共和国青藏高原生态保护法》的立法过程中，全国人大常委会广泛征求社会各界意见建议，充分反映了人民的

江淮名卷·2024年安徽中考模拟信息卷（四）·英语（听力材料及参考答案）听力材料I·短对话理解你将听到五段对话。每段对话后有一个小题，请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。1.W:John,could you clean your room?It's such a mess!M:Yes,Mom.I'll do it right away.2.W:Look at the beautiful sunshine.What a nice day!M:But the radio says it will be rainy soon.3.W:Hi,David.I hear you are going to Hefei tomorrow.M:Yes.I'll see my friends there.4.M:I was born in May,2008.What about you?W:I was one year older than you.5.M:Mom,I can't find my schoolbag.Do you know where it is?W:You can go and look for it on the sofa.I saw it there yesterday.Ⅱ.长对话理解你将听到两段对话。每段对话后有几个小题，请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。听下面一段对话，回答第6、7题。M:Here is the menu.Can I get you anything to drink first?W:Oh.We'd like juice,please.M:The orange juice is really good here.W:OK.That's it!M:One glass or two?W:Two,thanks.听下面一段对话，回答第8至10题。M:How was your holiday?W:To be honest,I'm really happy to be at home!M:Why?W:Well,on the first day at the hotel,someone stole my bag.M:Did you catch the person?W:No.Luckily,I'd packed my ID card and money in a different bag,so as soon as I'd bought some new clothes Iwent sightseeingM:Great.W:The rest of the holiday went well until the last evening.M:What happened then?W:Suddenly it became dark in the hotel.The manager had some candles,then all the hotel's guests sat in thereception area and sang songs from different countries.That was fun.Ⅲ.短文理解你将听到一篇短文。短文后有五个小题，请根据短文内容，在每小题所给的A、B、C三个选项中选出一个最佳选项。短文读两遍。I'm Lisa.I live in Rome,Italy.I'm faced with some problems but I don't know how to deal with them.I'm not good at French.My parents hope that I can go to university in France,and they ask me to spend twohours practicing French after dinner.I still have some other homework to do.So I can't go to bed until 11:00 everynight.I go to bed late but I have to get up early.My parents ask me to run for half an hour every morning to keep fit.【2024年安徽中考模拟信息卷（四）·英语（听力材料及参考答案）第1页（共2页）】

4.如图a所示，两根不计电阻、间距为L的足够场宽度也为d,磁感应强度为B,方向竖直向长行光滑金属导轨，竖直固定在匀强磁场下，若不考虑其他阻力的影响.求：中，磁场方向垂直于导轨面向里，磁感应强d:X×XX:度大小为B.导轨上端串联非线性电子元件Zix xBx x和阻值为R的电阻.元件Z的U一I图像如图车尾车头×XXXb所示，当流过元件Z的电流大于或等于I。XXX×XXXX时，电压稳定为Um.质量为m、不计电阻的金属棒可沿导轨运动，运动中金属棒始终水且(1)小车车头刚进人磁场时，线框所受安培力与导轨保持良好接触.忽略空气阻力及回路中F安；的电流对原磁场的影响，重力加速度大小为(2)求解电磁刹车过程中产生的焦耳热Q,以及小车通过磁场所用的时间t.g为了方便计算，取1=瓷，U。一以2BL'下计算结果只能选用m、g、B、L、R表示.U八V6.如图所示，两根足M图a图b够长的光滑行(1)闭合开关S,由静止释放金属棒，求金属棒金属导轨MN、PQ下落的最大速度w;水放置，间距为BD(2)断开开关S,由静止释放金属棒，求金属棒L,电阻不计.AB左侧、CD右侧存在竖直向上下落的最大速度2；的匀强磁场，磁感应强度为B.在AB、CD之(3)先闭合开关S,由静止释放金属棒，金属棒间的区域内，垂直两根导轨水放置了两根质达到最大速度后，再断开开关S.忽略回路量分别为m、2m、电阻分别为r、R的导体棒a、中电流突变的时间，求S断开瞬间金属棒b.在a、b棒之间用一锁定装置将一轻质弹簧的加速度大小α.压缩安装在a、b棒之间（弹簧与两棒不拴接），此时弹簧的弹性势能为E。.现解除锁定，当弹簧恢复到原长时，α、b棒均恰好同时进入磁场。试求：(1)a、b棒刚进入磁场时的速度大小；(2)a、b棒分别在磁场中滑行的距离.题型3电磁感应中的能量和动量5.电磁刹车是一种新的刹车形式，某实验小组利用遥控塑料小车模型探究电磁刹车的效果.在遥控小车底面安装与小车底面长、宽均相同的N匝矩形导线框abcd,其总电阻为R,其面与水地面行，如图所示，小车在磁场外以恒定功率P做直线运动，受到地面阻力恒为f,进入磁场前已达到最大速度，车头(ab边)刚要进入磁场时牵引力立即变为零，车尾(cd边)刚出磁场时速度恰好为零.已知小车总质量为m,小车底面长为d,宽为L,有界匀强磁《高三·物理·大题突破（十三）》第2页

C验钞机中使用光来辨认钞票的真伪D.老式照相机中底片上成倒立的像11.各可见色光在真空中的波长如图所示，植物中叶绿素a会吸收波长在430nm~662nm之间的光。真空中，植物能够吸收的光()A.包含紫光B.不是电磁波C波长比红外线的短D.比波长700nm的光传播速度大波长mm760630600570500450430400红橙黄绿青蓝紫12.利用如图甲所示的实验装置对冰持续加热，在此过程中，根据测得的数据画出温度随时间变化的图像如图乙所示，从图像中分析可知()A.沸腾过程持续了10分钟B.冰属于非晶体C图像上的变化趋势可以说明物体的内能增加时温度一定会上升D.冰与水的比热容之比为1：2◆温度/℃100DE80604020B0724-20A68101214时间/mim二、填空题（本大题共4小题，每空2分，共18分）13.为向世界传递绿色亚运精神，2023年杭州亚运会的56个场馆均采用光伏发电、风力发电等供电方式。其中光伏发电是将能转化成电能；亚运主火炬的燃料“零碳甲醇”在燃烧过程中将化学能转化成能。14如图所示，水位计是基于（填入一个电路常用仪表名称）改装的，当水位升高时，指示灯L的亮度会（选填“变小”或“变大"）。

绝密★启用前2024年茂名市高三年级第三次综合测试地理试卷试卷共6页，19小题满分100分。考试用时75分钟。注意事项：1,答卷前，考生务必用黑色字迹的钢笔或签字笔将自已的姓名、考生号、考场号和座位号填写在答题卡上。将条形码横贴在答题卡右上角“条形码粘贴处”。2.作答选择题时，选出每小题答案后，用2B铅笔在答题卡上对应题日选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上。3.该日3.非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域A海内相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。C镜不按以上要求作答的答案无效。4.该04.考生必须保持答题卡的整洁。考试结束后，请将答题卡交回。A河随C.纬度一、选择题：本题共16小题，每小题3分，共48分。在每小题给出的四个选项中，只有一项是广新符合题目要求的。年广州剂商品由生产国运往消费国途经其他国家，对途经国来说，即为过境贸易。中老铁路通车运营后，老挝的货物可经中国出境。从万象至横滨港的货运时间，经深圳出境比经曼谷出境缩短6.5天。下图为万象至横滨港的海铁联运示意图。据此完成1~2题。=铁路→物流方向0500km1.相比曼谷，老挝货物经深圳出境运输时间更短的原因是5.近年①路程更短②顺风顺水③海运速度更快④铁路占比更大A.A.①②B.②③C.③④D.①④C.通2.我国不断简化过境贸易通关检查程序可以6.目前，A.减轻国内交通压力B.?低货物准人风险C.扩大我国港口腹地扩大国内销售市场C地理第1页（共6页）

40A.①B.②525--①C.③201一②D.④1510④501650年1750年150年10年15.阅读《欧洲移民表》，对此最合理的解释是（目的地时间范图人数美国1821-1932年3420万俄国亚洲地区1800一1939年1200万阿根廷1856-1932年640万加拿大1821一1932年520万A.移民可能利用火车、轮船、汽车等交通工具B.世界性经济危机是欧洲向外移民的主要原因C.大量移民前往美洲主要是出于对财富的追求D,大规模移民是世界整体化的重要原因及表现16.下图为二战后部分时期美国移民来源地的变化情况。影响这一变化的主要因素()酪民敏心…欧湖A.美国经济的强大吸引力5000000一一亚翼B.经济全球化的加速发展4000000一一一“非洲C.美国多元文化的包容性3000000一一增“大洋洲一合一拉丁免湖2000000D.冷战导致难民涌入美国1000000量g基一美今于1961-19701951-i9601991-20001971-3980年0第4项共8页

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全国100所名校高考模拟示范卷人全国100所名校高考便拟示范卷®深刻的变化，但从世界社会主义500年的大视野来看，我们依然处在马克思主义所按秘密级事项管理★启用前指明的历史时代”“无论时代如何变迁、科学如何进步，马克思主义依然显示出科学2024年普通高等学校招生选择性考试思想的伟力，依然占据着真理和道义的制高点”。这是因为马克思主义思想政治模拟试题（五）①具有科学性和实践性的内在特质②是推动社会形态更替的决定性因素新高考研究中心③全盘吸收了空想社会主义者的长远设想本试卷共100分考试时间75分钟④在回应时代问题中不断丰富和发展自身B.①④c.②③D.③④注意事项：A.①②1.答题前，考生务必将自己的姓名、准考证号填写在答题卡上。3.2023年7月19日，我国发布的《中共中央国务院关于促进民营经济发展壮大的意2.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。见》指出，要持续优化民营经济发展环境，加大对民营经济政策支持力度，强化民营如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡经济发展法治保障，着力推动民营经济实现高质量发展，促进民营经济人士健康成上。写在本试卷上无效。长，持续营造关心促进民营经济发展壮大的社会氛围。材科表明3.考试结束后，将本试卷和答题卡一并交回。①我国毫不动摇地鼓励、支持、引导非公有制经济发展②民营经济是推进中国式现代化的生力军，是高质量发展的重要基黜一、选择题（本大题共16小题，每小题3分，共48分。在每小题给出的四个选项中，只③我国依法保护民营企业产权和企业家权益，努力构建亲清政商关系有一项是最符合题目要求的)④民营经济成为中国特色社会主义的重要物质基础和政治基础1.问题是时代的口号，社会主要矛盾和中心任务是一个社会中问题最集中的反映和诉C.②④D.③④如A.①②B.①③求。抓住社会主要矛盾、找准中心任务，就抓住了解决社会问题、推动社会发展的4.中国人民银行决定于2023年9月15日下调金融机构存款准备金率0.25个百分点封(不含已执行5%存款准备金率的金融机构)。继降息、优化房地产金融政策后，央“牛鼻子”。中国共产党在不同时期面临的主要任务和中心任务行年内二度全面降准，彰显出货币政策推动经济持续恢复、回升向好的坚定决心。改革开放和社会主中国特色社会新民主主义社会主义革命现代化建设新时期主义新时代下列对上述政策效应分析正确的是羊命时期和建设时期党的十八大以来，党的主现①保持货币信贷总量增长→优化金融信贷资金结构→从根源上提高企业盈利能力反对时民主座受约继续探索国建设社会主要任务是实百年奋实现第二个百年②专项债券加快发行使用→发挥财政资金直达机制作用→促进经济发展实现质的提升国主义、封建主义的转变正确道路，放产斗目标，开程朝着实现中行社会主义发展社会生进社会使人民摆脱贫摩支球标天复兴翻要森引器③保持市场流动性合理充裕→降低实体经济综合融资成本→推动经济恢复、回升向好民族独立尽快富裕起主义建设，为④金融机构用于放贷的资金增加→打开贷款利率下行空间→加大对实体经济的金融现中华民族伟现在起，中国共大兴莫定根:新的活力的就是团结带领全国各族人主义现代化支持力度D.③④造本社会本政治前提和证和快速·面建成社会百年奋斗目C.@③实现第一线条件制度基础以中国式现代全面推进A.①②B.①④中华民族伟大复兴5.某市政府在广泛征求群众意见建议的基础上提出民生实事候选项目，由同级人大代关于中国共产党为何总能抓住解决问题的“牛鼻子”，下列分析正确的是表在本级人民代表大会期间，以投票表决的方式选择决定正式项目，交由政府实施，①中国共产党是决定当代中国前途和命运的根本力量并接受人大代表、人民群众监督和评价，实现了党委决策、人大决定、政府执行、公众②党始终坚持人民立场，紧紧依靠人民群众创造历史伟业参与的权力运行设计理念。这有利于②聚焦民生切口，释放多元主体能量③坚持问题导向是党始终走在时代前列、永葆生机活力的法宝①赋能人民政府，提高依法行政能力④推进政治协商，提升群众的幸福感④党坚持马克思主义中国化时代化，走符合中国国情的道路③转变治理理念，构建共治共享格局C.②③D.③④B.①④C.②③D.②④A.①②B.①④【24(新高考)zX·MN·思想政治·JHD2.强调，“尽管我们所处的时代同马克思所处的时代相比发生了巨大而A.①③【24·(新高考)ZX·M·思想政治·JHD思想政治卷（五）第2（共8）⊙思想政治卷（玉）第1页（共8页）思想政治卷（一）第？页（共8页）【24·(新高考)ZX·MN·思想政治·JH￥】

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的术，该技术可增加克隆牛的数量，D正确。植株的净光合速率大于0，理由是小麦植株d内血糖维持任高糖才故选C。净光合速率大于0需小麦叶片光合速率大比，C组的血糖波动较大16.C【解析】诱导限速酶基因突变只能提高于整株小麦的呼吸速率，图乙仅表示其一且波动较小，说明红光照突变率，不能提高改造的成功率，A错误；叶片的净光合速率大于0，但是未知小麦其胞的小鼠背部，可缓解糖从基因文库中获取的基因是天然基因，而他部位的呼吸速率，因而无法确定小麦植而①和⑧在20d后的肤改造过的限速酶基因并非天然基因，B错株的净光合速率大于0。升高，⑥的胰岛素含量误；限速酶基因表达可产生限速酶，限速酶(2)据图分析，百农889叶片的光合系统对会出现“多饮、多吃、多是蛋白质可作为抗原，用制备的抗体进行盐胁迫的抵抗能力更强，理由是与对照组状，因此，与B组相比检测可测出是否表达，C正确；改造限速酶相比，盐胁迫百农889的气孔导度基本不减少，尿量减少。不一定需要改变其的所有氨基酸序列，变，而中国春的气孔导度则显著下降，而且(3)由(2)分析可知D错误。故选C。虽然两种植物的净光合速率均降低，但是细胞合成和分泌胰17.【答案】(12分)百农889的下降幅度没有中国春大。鼠的症状(1)暗反应(1分)小麦植株净光合速率(3)本实验要提取叶片中的色素，然后进行19.【答案】(8分)大于0需小麦叶片光合速率大于整株小麦含量的比较。结果可发现，与对照组相比，(1)次生演替的呼吸速率，图乙仅表示其一叶片的净光盐胁迫组的光合色素含量均降低。，围保留（甚至还保留合速率大于0，但是未知小麦其他部位的呼。18.【答案】10分)殖体)；演替速度吸速率，因而无法确定小麦植株的净光合(1)电信号(1分)双向(1分)2落；经历的阶段速率大于0(3分)(1分)(2)蒲公英、葎直(2)百农889(1分)与对照组相比，盐(2)均为生理盐水(1分)维持高血糖状(3)地位或作用胁迫百农889的气孔导度基本不变，而盐态(1分)⑦⑧(1分)减少(1分)及生物与环境胁迫下中国春的气孔导度则显著下降，而减少(1分)【解析】(1)在且虽然两种植物的净光合速率均降低，但是(3)红光照射可促进胰岛细胞合成和分泌的演替是次百农889的下降幅度没有中国春大(2分)胰岛素，从而缓解糖尿病鼠的症状(2分)【解析】(1)测量兴奋的传导可将电流表的件基本保留(3)实验思路：利用无水乙醇分别提取等量两个电极放置在细胞膜外（记为a、b),然后其他繁殖体的正常百农889幼苗、正常中国春幼苗、盐在一个电极（如a)的外侧施加一个适当强来的群落；胁迫处理10d的百农889和盐胁迫处理度的刺激产生兴奋，此时兴奋以电信号形(2)由表可10d的中国春幼苗中的光合色素，然后用纸层析法进行分离，观察比较色素带（叶绿素式，双向传导。当兴奋传到a处后，a处电的生态位条带)的颜色和宽度(3分)位会由外正内负转变成内正外负，此时b度反而减电极膜外还是正电位，因此电流表的指针蒲公英、有预期结果是：光合色素带的颜色深度：正常会发生一次偏转，当兴奋传至b电极处，同也表明了百农889>盐胁迫百农889，正常中国春>样也会使得指针再偏转一次。(3)生态盐胁迫中国春，色素带宽度：正常百农889>盐胁迫百农889，正常中国春>盐胁迫中(2)由题意可知，A组是正常小鼠，是空白或作用对照组，B~D为糖尿病模型鼠，其中D组占据着国春(2分)【解析】(1)气孔导度是通过影响小麦光合是用红光照射的实验组，B组为糖尿病模型之间及组，C组是注射胰岛素的阳性药物对照，其是三裂作用的暗反应阶段来影响其净光合速率,阳的应注射与C组等量降低该

A.A板带电量为cEdpB.p点的电势为dBC.A、B两板间的电压为EdD.将A板向上移一小段距离，P点的电势将降低5.质量分别为ma=0.5kg,m6=1.5kg的物体a、b在光滑水面上发生正碰，若不计碰撞时间，它们碰撞前后的位移-时间图象如图所示，则下列说法中不正确的是(s/mA.碰撞前a物体的动量大小为2kgm/s24B.碰撞前b物体的动量大小为零16a+bC.碰撞过程中a与b物体共同损失的动能为3.75JD.碰撞过程中a物体动量变化量的大小为1.5kgm/s12於6.如图甲，把一个筛子用四根弹簧支撑起来，筛子上装一个电动偏心轮，它每转一周，给筛子一个驱动力，这就做成了一个共振筛，该共振筛的共振曲线如图乙所示，已知仅增大电压，可使偏心轮转速提高；仅增大筛子质量，可增大筛子的固有周期。现在，在某电压下偏心轮的转速是2s,则(A.筛子现在振动的频率为0.8Hz.B.共振筛的固有频率为0.8Hz偏心轮C.仅增大电压，可以使筛子振幅增大D.仅增大筛子质量，可以使筛子振幅增大7777777777777f/Hz0.8甲7.一列沿x轴传播的简谐横波，在0时的波形如图甲，P、Q是波上的两个质点，此时质点P沿y轴负方向运动，图乙是波上某一质点的振动图像。下列说法正确的是（)yfcm◆ycm1010A.该波沿x轴负方向传播m0K0.05.100.15020/sB.图乙可能为Q点的振动图像-10-10甲C.0.10s时，质点P沿y钟负方向运动ZD.该波的波速一定为40/s试卷第2页，共6页

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