首页 衡水金卷先享题答案
  • 衡水金卷先享题2023-2024年高三一轮周测卷5英语试卷试卷答案答案

    B.They cooked fresh dishes for Rina's mother. C.They prepared tempura broccoli in Rina's kitchen. D.They went straight to see Rina's mother in hospital. 27.What can we learn from the last paragraph? A.Chu was given an award for his deed. B.Rina's mother didn't recognize Chu at first. C.The Joneses had a dinner with Chu and his team. D.Chu refused the payment and went back with his team.

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    2022一2023学年度10月1切5高三化学试题I:127可能用到的相对原子质量:H:10:16C:12N:14S:32Cu:64K:39一、选择题(共21题,年小题只有一个选项符合题毫意,每小题2分,共42分)1.化学与环境、材料密切相关,下列说法错误的是八NoA./汽车尾气中的NO、C0都是汽油燃孵的产塑1B/氮氧化物是光化学烟雾的主要污染物C.生石灰能爱益,4驿煤脑的股破剂D.相合金大量用于高铁建设2.化学与生活密切相关,下列叙述正确的是H00.H以®4.漂白粉与盐酸可混合使用以提高消毒效果B.温室气体是形成酸雨的主要物质C.棉花、麻和蚕丝均为碳水化合物铷D男赛台注天雾3.下列离子方程式书写正确的是CaloH+Nazcos=Lacos vNaorA.石灰乳号Na,C0,溶液混合:℃a4C06aC0,↓将大星招H6四,B.Fcth04三f飞S04十h个C.Fe与稀疏酸反检的离子方程式:2e+6H-2Fe3++3H,↑LalHioshf NaoH:二D.Ca(HC03)2溶液与少量NaOH溶液反应:HC0;+Ca2+0H-CaCo,↓+H,04.下列各组离子在给定条件下一定能大量共存的是A.无色透明的溶液:Na、K、NH、MOB.常温下pH小于7的溶液:N、Fe24、Br、co2C.遇酞变红的溶液:Ba2+、K、NO;、CfD.含氯化铁的K、Ba2+、NO3、OH5.下列物质在给定条件下能一步实现的是Fe,04A.Pe..rcB.NaCl(a、eo8→NaHC0,sNa,C0,加热c.Ca(oH),co→CaCo,ChlooroCH,COOHD.Cu-A→Cu0→Cu(OH),第1页

  • 2024年衡水金卷先享题·高三一轮复习夯基卷(湖南专版)思想政治(一)1试题

    胜疫情,守护人类共同的家园,②④正确。①与设问构不因果关系。联系的客观性决定了联系是不以人的意志为转移的,③错误。8.答案D命题透析本题以计算工具的演变为情境,考查发展观的知识,考查科学精神学科素养。思路点拨计算工具经历了从简单到复杂、从低级到高级、从手动到自动、从自动到电子的发展过程,而且还在不断发展,体现了世界是永恒发展的,发展的实质是新事物的产生和旧事物的灭亡,②④正确。并非任何运动、变化都是发展,①错误。判定新、旧事物的标准在于是否同事物发展的必然趋势相符合,③错误。9.答案A命题透析本题以实现中华民族伟大复兴为情境,考查发展观的知识,考查科学精神学科素养。思路点拨实现中华民族伟大复兴,是一场接力长跑。经过百年奋斗,中华民族迎来了从站起来、富起来到强起来的伟大飞跃,迎来了实现伟大复兴的光明前景。说明既要重视量的积累,又要抓住时机促成质变,①③正确。量变达到一定程度必然引起质变,②说法不准确。事物发展的状态是量变和质变,④错误。10.答案B命题透析本题以智能时代老年人面临“数字鸿沟”为情境,考查矛盾观的知识,考查科学精神学科素养。思路点拨在数字、智能化时代,老年人面临“数字鸿沟”,为此,通信企业开发助老产品。这启示我们矛盾是事物发展的源泉和动力,要承认矛盾、直面矛盾,积极寻找正确的方法解决矛盾,①③正确。主要矛盾的主要方面决定事物的性质,②错误。矛盾双方在一定条件下相互转化,④错误。11.答案A命题透析本题以科学探索为情境,考查认识论、联系观的知识,考查科学精神学科素养。思路点拨先进天基太阳天文台“夸父一号”提供观测数据,通过地面支撑系统和科学应用系统处理后,供科学家进行太阳物理学研究。这体现了实践是认识的目的,在科研实践中人锻炼和提高了认识能力,①②正确。实践是认识的基础,③错误。④说法片面。12.答案C命题透析本题以对中国式现代化的认识深化为情境,考查认识论的知识,考查政治认同学科素养。思路点拨十八大以来,以深化对中国式现代化道路的认识,拓展对中国式现代化理论和实践的探索,实现了中国式现代化的新飞跃,体现了①④的观点。②③表述正确,但与题目主旨不符。13.答案C命题透析本题以科学探索为情境,考查实践的知识,考查科学精神学科素养。思路点拨上述研究属于科学实验活动这一基本实践形式,其结论的正确性有待于实践检验,②④正确。上述研究建立在实践基础上,并没有超越真理的客观性和条件性,①③错误。14.答案C命题透析本题以提出安全倡议为情境,考查社会存在与社会意识的知识,考查科学精神学科素养。思路点拨针对当前全球安全形势日益严峻(社会存在),提出全球安全倡议(社会意识),强调人类是休戚与共的命运共同体,体现了②④。先进的社会意识对社会发展起积极推动作用,①错误。③说法太绝对。15.答案A命题透析本题以实现中华民族伟大复兴为情境,考查寻觅社会的真谛的知识,考查政治认同学科素养。思路点拨今天,中华民族向世界展现的是一派欣欣向荣的气象,正以不可阻挡的步伐迈向伟大复兴,体现了②的观点。新征程上,中国共产党团结带领人民激荡豪情壮志、凝聚磅礴力量…,体现了①的观点。③④说法错误。2

  • 衡水金卷先享题分科综合卷2023年普通高等学校招生全国统一考试模拟试题生物一

    Bl2022~2023学年下学期高-期中考试试卷B.酶和无机催化剂都能降低化学饭应的活化能。众08共,最小?共服本:圆到数非,二11.生物C有利用淀粉,蔗糖、淀粉酶和预液来验证酶的专一性省式(9)二S聚(父D同一株植物体的不同组织细胞牛合成的酶也可能是相同的品或小个两塞中。考生注意:5.细胞呼吸的原理在生产和生活中得到了广泛的应用。下列有关叙述错误的是39的12.1本试卷分选择题和非选择题两部分,共100分。考试时间75分钟。2.请将各题答案填写在答题卡上。A降低水分、温度和氧含量可以减弱粮食的呼吸作用,延长其保质塑3.本试卷主要考试内容:人教版必修1,必修2第1一3章。B为避免肌细胞进行无氧呼吸产生乳酸导致肌肉酸胀,可进行慢跑等有氧运动C酵母菌在密封发酵初期不会增殖,一段时间后就会有大量酒精产生一、选择题:本题共20小题,每小题2分,共40分。每小题只有项符合整马要求。D适时中耕可疏松表土,改善通气状况,有利于农作物根系进行有氧呼吸和生长1淡水水拔中氨、映等元素合量过高会导致水体青养化认西起蓝细面绿藻等浮游生物暴6.下列关于高等植物细胞与高等动物细胞的有丝分裂的叙述,正确的是发性增殖,该现象称为水华。下列说法错误的是A.中期的染色体都排列在细胞板上心永华发生后,浮游生物光合作用旺盛,对水体中其他生物的生存有利\B都会在前期形成纺锤体B.水域环境中缺乏氮、磷等大量元素会影响蓝细菌的正常生命活动C.高尔基体都在末期参与细胞壁的形成C.与绿藻相比,蓝细菌的主要结构特征是没有以核膜为界限的细胞核D朱期时,都从细胞的中部丝裂成两部分D,绿藻和水草可利用叶绿体中的光合色素进行光合作用7.下列不属于衰老细胞显著特征的是2细胞膜作为细胞的一个重要组成,其部分功能如图所示,其中③为一种特殊的结构一胞间酶活性都降低连丝。据图分析,下列叙述错误的是B.细胞内水分减少C,色素积累D.细胞核的体积增大88.青蛙尾部退化消失过程中,尾部细胞内溶酶体组织蛋白酶浓度会随尾部变短而增大,下列相关分析错误的是①边界②信息交流③胞间连丝南④物质运输A.青蛙尾部消失是由相关基因决定的A.功能①有利于保障细胞内部环境的相对稳定B.尾部细胞内溶酶体组织蛋白酶是在核糖体上合成的B胰岛素调控生命活动可用图中功能②表示八C青蛙尾部消失属于细胞衰老相C.功能③主要是高等植物细胞间的一种信息交流的方式D.尾部细胞内溶酶体组织蛋白酶的浓度高有利于尾部消失、D功能④可以确保对细胞有害的物质都不能进人细胞中9.下列有关豌豆细胞中等位基因的说法,正确的是3.硝苯地是治疗高血压的药物,属于一种C+通道阻滞剂,它可以抑制血管滑肌和心肌细A.A与a、A与A都属于等位基因胞的跨膜C2+内流,进而引起冠状动脉、肾小动脉等全身血管的扩张,产生降压作用。据此B.等位基因控制的性状是相同的判断,下列说法错误的是C.控制相对性状的等位基因必须是一对A.Ca+进人滑肌和心肌细胞的方式可能都是协助扩散P舟位基因位于同源染色体上B.Ca2+通道对通过的离子具有一定的选择性10.下列有关孟德尔遗传定律的叙述,错误的是\g小膜内外Ca2+浓度梯度的大小对Ca+的运输速率无影响孟德尔遗传定律可以发生在有丝分裂中。D.正常情况下,Ca+需要通过Ca+通道才能被转运进滑肌细胞内B.同源染色体上的一对等位基因的遗传遵循孟德尔的分离定律4.酶是活细胞产生的具有催化作用的有机物,下列关于酶的叙述错误的是A.可利用过氧化氢和过氧化氢酶来探究pH对酶活性的影响程成【高一生物第1页(共6页)】,23-430A,A5品页共6页1·23-430A·

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    08绝密★启用并使用完毕前高三年级学情检测化学试题注意事项:1,答题前,考生先将自已的姓名、考生号等填写在答题卡和试卷指定位置。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。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,将答案写在答题卡上,写在本试卷上无效。3,考试结束后,将本试卷和答题卡一并交回。可能用到的相对原子质量:H1C12016K39Mn55Fe56一、选择题:本题共10小题,每小题2分,共20分。每小题只有一个选项符合题目要求。1,高粱酿酒过程中部分操作如图所示。下列说法错误的是C“蒸粮”时加热“拌曲”前摊晾“堆酵”时升温“馏酒”时控温A.“蒸粮”时可适当鼓风加快燃烧速率③拌曲”加入的酒在酿酒时起到健化作用C.“堆酵”时升温是因为吸收环境中的热量D.“馏酒”的原理即实验操作中的“蒸馏2.下列物质应错误的是乃A.钾钠合金可用于原子反应堆导热剂B牺牲阳极保护法可采用废铜保护钢材C.铝罐槽车可用于运输冷的浓硝酸/D.四氧化三铁用于制备激光打印墨粉以,5及下秒安验中硫酸的作用与其他三项不同的是合】Na,so t Hisoy·乃.c.☑鼠性A.精中加人浓硫酸产生黑“面包”明水也显毓酸钠与硫酸取321”+片0,4m公46手CH=CH2乙烯、1,3丁二烯的共聚物)制成。下列说法延确的是乃☑C=CCN⊙A.采样拭子制备时需要高温杀CH:cHB.尼龙CH十NH(CH>NH一名(Ch生oH)的合成体为色孩和包酸(聚)尼龙纤维属于人造高分产材料己=脓己政ABS塑料杆的合成单体均不含顺反异构X高三化学试题第1页(共8页)呼

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    22:17l14G702023年安徽省初中学业水模拟考试化学(试题卷)注意事项:1.化学试卷共两大题17小题,满分40分。化学与物理的考试时间共120分钟2.试卷包括“试题卷”和“答题卷”两部分,“试题卷”共4页,“答题卷”共2页。3.请务必在“答题卷”上答题,在“试题卷”上答题是无效的。4.考试结束后,请将“试题卷”和“答题卷”一并交回。可能用到的相对原子质量:H一1C一120一16Na一23一、选择题(本大题包括12小题,每小题1分,共12分。每小题只有一个选项符合题意)1,“绿色转型”是今年全国两会政府工作报告中的关键词。推进资源节约利用,节能降碳,持续打好蓝天、碧水、净土保卫战。下列措施不利于落实方案的是A.汽车尾气使用转化器,减轻雾霾污染B.研发新技术回收CO2,减缓温室效应C.把秸杆就地焚烧,减轻农民劳动强度D.对垃圾实行分类回收,增强环保意识2.从北京奥运会到冬奥会,双奥之城见证百年强国梦。下列奥运运动项目设施或器材的主要成分没有利用有机合成材料的是A.尼龙滑雪鞋B.钢制单杠C.橡胶篮球D.塑料乒乓球3.钒常作为化学工业的催化剂。下列有关钒的说法不正确的是A.属于金属元素B.原子序数为2323V钒C.原子核外电子数为23D.相对原子质量为50.94g50.944.金属材料的使用作为一个时代的标志,见证了人类文明发展的过程。历史上人类冶炼不同金属的大致年代如下图,下列有关说法不正确的是铁器时代新石器时代青制器时代一一公元前50年公下e公元500年公元前6000年公元前4500年1792年一一Mg-ZnA.通过敲打将青铜制成不同形状,是利用金属的延展性B.炼铁的原料主要有铁矿石、焦炭和石灰石C.金属铝的利用比镁、钠晚,是因为铝的金属活动性强D.湿法炼铜工艺就是利用铁和硫酸铜溶液反应制取铜5.某化学小组同学学了浓硫酸的相关知识后,在实验室进行浓硫酸配制稀硫酸的实验操作如图所示。以下操作正确的是150时浓硫酸3020水A.倾倒浓硫酸B.读取浓硫酸体积C.稀释D.装瓶模拟考试化学试题卷第1页(共4页)

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    L enhs0n Douyne Chneseof thevidingTikTok,and many have tuedntL moved by the hospitality)fkof thepeople in Wuhan,and said they are always helpful and supportive.ficom the ocagovemofWuhan fis hmtopromothe carryingo of preferential (policies.Liu opened his second branc the end of ast year.He plans to expand morewhen the opportuntyisHe said his decisionouruiserepreeriadream inWuhan was right.Wuhan isa city with huge consumtion potential,nice peope and supportive goverment,s Liuwould choose Wuhan again if he had to do it over.24.Where did Liu Tzu-wei first launch his business?A.In Wuhan.B.In Taiwan.C.In London.D.In Hangzhou.25.How would Liu feel about the future of his milk tea shop?A.It's unexpected.B.It's hopeful.C.It's challenging.D.It's regretful.26.What can we learn from the passage?A.All the fans have turned into customers.B.Liu's business was an instant hit in Wuhan.C.Liu worked as an e-shopping agent after graduation.D.Liu's business has received assistance from the government.27.What message does the story convey?A.Well begun is half done.B.East or west,home is best.C.Victory belongs to the most persevering.D.He that travels far knows much.CTake the wheel of an electric vehicle and prepare to be amazed.The latest technology is there,withtablet like screens instead of old-fashioned switches.Add falling price which make owning and runningmany electric vehicles as cheap as fossil-fuel alternatives,and the open road signals.Above all,the instantacceleration of battery power makes driving easy and exciting.EV should be recharged roughly every 250 miles.When you do find a public charging point,it issometimes inaccessible,which cause "range anxiety It is one of the main reasons drivers give for notbuying an EV.Who might install them?Drivers will need a mix of fast"long distance"chargers installednear motorways and ower"tpup"chargers available in the car parks of shopping centers,restaurantsand so on.Dedicated charging firms and carmakers are investing in infrastructure )Oil com-panies are putting chargers in petrol stations and buying charging companies.Yet the charging busines suer from big problems.showtoadjust between the planning auhorities and grid(ms.Another is the osTstthPos may bediffcu t ttain becausethe etrkswill ot at st be heaviyusd.reatediskthat the coveewill have gaps.nd thethereistheu of cmetingrvshoulbe ble wthomherwithout having to sign up to them all.What todo?GovesA well a fnding EV mayare thrwing h atpublic harger mericad50i by.B pstorequirewulheethe problem of cvnve will remain.28.Which is the biggest highlight of an EV?A.Falling price.B.Replacing switchesC.Running self-drive.D.Instant acceleration of battery power.29.What do the underined wordsange anxiety"n Paragraph 2 refer to?Y高三模拟卷(八):英语·A区专用,第4页(共八页)】

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    附:听力部分录音材料(Text 1)M:I'd like one hamburger,please.W:Okay.That meal comes with French fries.Is that okay?M:I'd like a salad instead.(Text 2)W:My phone just broke!Can I use yours?M:I'm using mine at the moment.I'm sure you can borrow Sammy's when she comes home.(Text 3)W:Jimmy,grandma and grandpa are coming to visit this evening.I want you to sweep and mop the kitchenfloor.M:Okay.But I'd like you to take out the garbage.(Text 4)W:What are you doing this Saturday?Lisa invited me to a party and said I could bring a friend.M:I am going to see a movie with Mike that night.I'm free on Sunday.(Text 5)W:Hey,Alex.I heard you went to Africa.How was it?M:You must have mistaken me for my twin brother Jason.I was talking to him about it last night and it mademe want to go myself.(Text 6)W:Hey,Tony.I'm sorry.M:Hi,Tina.What's wrong?W:I'm afraid I can't go to Beijing with you this weekend.M:How come?W:I have a really important history test and I have to study for it.M:We can go next week instead.W:No,I don't want to ruin your weekend.You go ahead and please take the book I bought to my friend,Mary.Tell her I have to study all the weekend because I can't afford to fail the test.M:OK,then I'll still go.But it's a pity that you can't come.(Text 7)W:Harry,guess what?I've just received an email from Pamela.She and Peter are coming down to see us thisweekend.M:Oh,that's good news!We haven't seen them for ages.W:Yeah.The last time we met them was at our wedding three years ago.M:Did Pamela mention how long they'll stay?W:About one week.M:Great!I can't wait to show them around our new house.W:Me too.We haven't had any guests since we moved in here.If the weather is fine,we can have a barbecue inthe garden.M:Good idea.I'll go to the market tomorrow to buy all the things we'll need.在·35·【22新教材老高考·DY·英语·参考答案一WYB一必修第三册一QG)

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    参考答案及解析化学2022一2023学年度第二学期五校联盟高一期末联芳化学参考答案及解析一、选择题须按要求服用,否则损害身体,B项错误;一定温度1.C【解析】木简的主要成分是纤维素,A项正确;“狼下,钛变得活泼,易被氧气氧化,因此制钛时,要用稀毫”指的是黄鼠狼尾部的毛,毛的主要成分是蛋白质,有气体作保护气,C项正确;焚烧废旧塑料会造成污B项正确;石墨烯是由碳元素组成的单质,属于新型染,不符合绿色化学理念,D项错误。无机非金属材料,C项错误;碲化镉能将光能转化为:7.D【解析】S与O2反应只生成SO2,A项错误;SiO2电能,属于新型无机非金属材料,D项正确。与水不反应,B项错误;C2H6与水不反应,C项错误;2.C【解析】二氧化硅具有良好的光学特性,可用于制丙烯发生加聚反应生成聚丙烯,D项正确。造光导纤维,与其硬度大无关,A项错误;NaHCO,能8.A【解析】甲烷是正四面体结构,四个氢原子是等效与盐酸反应从而起到中和胃酸的作用,B项错误;的,故一氯代物只有一种,新戊烷碳原子的骨架也是NH4HCO3受热易分解,产生大量气体,使面团疏松、正四面体结构,故四个甲基也是等效的,即12个氢原多孔,C项正确;人体不能消化纤维素,纤维素不能为子是等效的,A项正确;氢氟酸能溶解SO2,与酸性人体提供营养,D项错误。强弱无关,B项错误;A1C13是共价化合物,不能用于3.B【解析】锂位于元素周期表第IA族,故碳酸锂的冶炼铝,C项错误:SO3与H2O反应为不可逆反应,D化学式为L2CO3,A项正确;碳酸锂与酸可以反应,项错误。与某些碱(如氢氧化钙)也反应,B项错误;锂和钠的衣焰色试验颜色不同,可通过焰色试验鉴别碳酸锂和碳9.B【解析】CHOH的结构式为H一C一O一H,含有酸钠,C项正确;碳酸锂既含有离子键,又含有共价少键,D项正确。五对共用电子对,A项错误;该反应为放热的氧化还4.C【解析】CHCl3俗称氯仿,A项正确;CHCIF2的原反应,能用于设计成甲醇燃料电池,B项正确;该反结构类似于甲烷,为四面体结构,故不存在同分异构应为放热反应,反应物的总能量大于生成物的总能体,B项正确;C原子半径大于F原子半径,C项错量,C项错误;CH3OH与CH3CH2OH互为同系物,误;反应为加聚反应,D项正确。化学性质相似,D项错误。5.B【解析】豆类植物的根瘤能将空气中的游离态氮10.B【解析】由石油提炼柴油是利用了分馏的方法分转化为化合态氮被植物吸收,实现自然固氮,A项正离得到不同沸点的物质,A项不符合题意;制玻璃的确;废旧电池含有重金属,掩埋会污染土壤,应收集集过程中石英砂和石灰石高温条件下反应生成硅酸钙中处理,B项错误;用导线连接铜片和铁片,分别插入和二氧化碳,该反应是高沸点物质制备低沸点物质柠檬中,该装置形成了简易的原电池,该电池可将化的反应,与元素的非金属性无关,B项符合题意;常学能转化为电能,C项正确;乙酸具有酸性且酸性大温下,浓硝酸与铝发生钝化反应,陈述Ⅱ错误,C项于碳酸,可以清除水壶中的少量水垢,D项正确。不符合题意;制作水果罐头时添加适量的维生素C,6.C【解析】苯分子不含碳碳双键,A项错误;药物必是因为维生素C具有还原性,能作抗氧化剂,D项不

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    2022一2023学年(下)高二年级阶段性测试(期末)化学考生注意:1.答题前,考生务必将自己的姓名、考生号填写在试卷和答题卡上,并将考生号条形码粘贴在答题卡上的指定位置。2.回答选择题时,选出每小题答案后,用铅笔把答题卡对应题目的答案标号涂黑。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,将答案写在答题卡上。写在本试卷上无效。3.考试结束后,将本试卷和答题卡一并交回。可能用到的相对原子质量:H1C12016Ni59一、选择题:本题共14小题,每小题3分,共42分。每小题只有一个选项符合题目要求。1.生活中处处有化学。下列说法正确的是A.霓虹灯光、LED灯光与核外电子跃迁吸收能量有关B.冰能浮在水面上与氢键的不饱和性和无方向性有关C.石墨能导电与石墨中的碳原子采取sp杂化有关D.用乙酸乙酯溶解油漆比水容易与“相似相溶”原理有关2.某材料能用于制备潜艇的消声瓦,被誉为现代潜艇的“隐身衣”,其结构如图所示:ECH2-CH=CH-CH2-CH-CH2下列说法正确的是A.其分子式为(C2H4).B.该分子属于缩聚产物C.该分子属于生物大分子D.合成该分子需要三种单体3.LED基质材料Si,N4(超硬物质)可通过反应3SiH4+4NH3=SiN4+12H2制得(已知电负性H>S)。下列有关说法正确的是A.Si3N4为分子晶体B.基态0Si原子的价电子排布式为3s23p4C.每生成1molH2,该反应转移1mol电子20D.NH中N的杂化轨道化学试题第1页(共8页)

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    学生用人书名师导学·选择性考试第一轮总复·化学应用提升2.(教材改编)取一小块金属钠,放在燃烧匙里1.正误辨析加热,下列实验现象描述正确的是()(1)实验完毕后剩余的金属钠不能随意丢①金属先熔化②在空气中燃烧,放出黄色弃,应放回原试剂瓶火花③燃烧后得白色固体④燃烧时火(2)钠能置换出醇羟基中的氢,所以将一小焰为黄色⑤燃烧后生成淡黄色固体物质块钠放入乙醇中,能产生气泡(A.①②③B.①③④(3)将钠放入盛有水和煤油的烧杯中,钠处C.①②⑤D.①④⑤于煤油和水的交界上下浮动3.(教材改编)室温时,向盛有饱和NaOH溶液(4)金属钠在氧气中加热时,剧烈燃烧,生成的烧杯中,加入一小块金属钠。下列有关描淡黄色的固体NazO2)述不正确的是(5)金属钠着火时,可用泡沫灭火器或干燥A钠浮在液面上,并四处游动,最后消失的沙土灭火()B.钠熔化成一个光亮的小球(6)钠表面自然形成的氧化层能够保护内层C.恢复到室温时,NaOH溶液的浓度增大金属不被空气氧化D.恢复到室温时,溶液中Na+数目减少(7)金属钠具有强还原性,可与T1C14溶液反4.将金属钠放人盛有下列溶液的小烧杯中,既应制取金属T1有气体又有白色沉淀产生的是(8)根据反应Na十KC1缩融NaC1十K个,知(填序号)。①MgSO4溶液②BaCl2溶液③饱和澄Na的金属性强于K清石灰水④Ca(HCO3)2溶液⑤CuSO&溶液⑥饱和食盐水⑦浓盐酸知识点二钠的氧化物基础知识夯实教材知识整合青1.钠在空气中的变化上述各步反应的化学方程式如下:金属钠露置在空气中会发生一系列变化,①4Na+O2=2Na2O其过程如下:②Na2O+H2O=2NaOH银白色金属钠①表面变暗©出现白色③2NaOH+CO2+9H20-Na2CO3·固体接着表面变稀⊙白色块状固体④,白色10H2O④Na2C03·10H20-Na2C03+10H2O粉末状物质36

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    recorded,calling on the population to remain4西完阶the dark sky fiery(似火的)red on Saturdayalert.本报采编中心KEY CORNER必修一Unit3听力材料及参考答案W:Of course you can,but you'd better do differentup in a hot-air balloon.Oh,I also won first prize31-35 DDBCB36-40 CADEF41-45 CBDAAexercises to keep fitin a guessing game!46-50 BDABD51-55 ACDBC听力材料(Text 7)W:Wow!What did you win?56.that /which57.created58.for(Text 1)W:My plane leaves at eight o'clock this evening.M:An MP3 player.Here,take a look.59.to hostW:Shh,don't make a noise.It's really late.You'll60.happiness61.thandoesn't it?W:Cool!That is a great prize.62.activities63.The64.were heldwake the children.M:No,it leaves at seven.M:Wait!There's more.One of the campers got lost65.jumpedM:OK,I'll be as quiet as a mouse.W:Oh dear,I don't have as much time as I thoughton a hike.Everyone was scared to look for him写作(Text 2)M:Don't worry.I've already booked a taxi to takebecause it was dark.But I wasn't!I went into第一节W:Oh,I don't know what to do-I hate makingyou to the airport.It's coming at four.the woods with my teacher and found the boyOne possible version:decisions!W:Oh,thanks David.Have you got any idea whatbeside the riverDear Eric,M:I always make a list of the advantages andtime it gets in?W:Aren't you brave!I heard that you like playing basketball.I amdisadvantages,and then decideM:I'll have a look at your booking...Here we are.M:After that they interviewed me.On Monday,mywriting to invite you to join the basketball club in(Text 3)The flight time is two and a half hours,and youpicture will be in the school newspaper!our school.It is looking for new members.M:Oh,no,I've made a mistake-lookwill get into Chicago at nine thirtyW:It sounds like you had quite a lot of adventures,The training,offered by great coaches,will beW:No,you haven't.You're doing it really well.W:That's great.I hope I'll be at the hotel at halfNick!I am proud of you!held twice a week,and any questions will beM:Well,I don't think I've done a good job.past ten(Text 10)welcomed in the training.And we will be given(Text 8)(Text 4)For better or for worse,all of us were born withhigh-level training every Friday afternoon.If youW:Dad,what are you watching?W:Heilo,sir.How can I help you?strengths and weaknesses.That is what makes usare interested in the club,sign up on our schoolM:Hey,Diana.It is a program on admirable athletes.each special.The problem is that our weaknesseswebsite before September ist.Looking forward toM:Er ..I really like these blue shirts.I wonderW:What is an admirable athlete?can often get in the way of us getting things weyour reply soonwhether you have them in my size.I wear a sizeM:An admirable athlete is an athlete who doesYours,44.want.That is why I want to talk about ways topositive things for the community.LiHuaW:OK.I'll go and have a look for you.overcome weaknesses.Once you learn to overcomeW:Oh,like a sports star who spends a lot of moneyyour weaknesses,you will be a more successful第二节(Text 5)helping sick children?person.Now,the first step is to know yourOne possible version:M:Right,that's it...I've done the washing-up andM:Exactly.Look,now they are talking about Calweaknesses.The easiest way to do this is to take aI feel my mother's strength and my feet arethe cleaning.And I've also picked up theRipken Jr.personality test.You can easily find one online.steady on her shoulders.I turn my face up to the sunchildren's toys.W:What admirable things did he do?Second,decide which weaknesses you really need toand laugh.Under my feet,the base feels strong,andW:That's great,darling.Would you like me toM:He did a lot.For example,he gave poor childrenimprove.Nobody needs to be good at everything.Somy heart beats peacefully.Far below,I can hearmake you a cup of tea?a chance to go to a baseball summer camp.if you can focus on the skills you need to improve,itpeople's cheering,and soon,I feel Magdalena'sM:Yes,please.Can I have a piece of cake,too?W:That was nice of himwill be a better use of your time.Third,make a planhands on my feet.She holds my shirt and then she(Text 6)M:Yeah,it was.Now go back upstairs and finishon how you will improve your weaknesses.If youclimbs up the back of my body.I work hard to holdM:Hello,Lily.Can you tell me what makes youyour homework,Diana.After you finish it,youcan come back and watch TV with me.have trouble making friends,for example,make amyself straight and still and strong for her.And oncewant to run such a long race?W:OK,Dad.plan to talk to five new people every week.Makingshe climbs onto my shoulders,she waves her handW:I want to set an example to my son.Some youngto the judges.(Text 9)a plan will help you take quick action.If you havepeople nowadays say they love sports,but theyOur tower is complete!The crowd cheers evenW:Hey,Nick!Welcome home!How was yourany questions,please come and find me at theonly watch sports games on television.camp?teachers'office,Monday through Friday between 9'louder.I smile across at Tomeu.I am very thankfulM:That sounds like me.What should I do?M:Oh,Mom.It was so much fun!I've made soam and 11 am.for his encouragement and support.Whether or notwe win this competition,I know we have done whatW:You can begin with doing something easy,suchmany unforgettable memories there!参考答案we set out to do.Our team has worked togetheras running slowly every morning.W:What did you do?1-5ABCAC6-10 BCBBC11-15 ABCCBWith trust in each other and with focus on the task.M:Can I stick to one exercise?M:We did a lot of things,but my favorite was going16-20 AACBA 21-25 CDDAB26-30ACDBCwe have built our castle.Today,I am a casteller!主编:杨慧英责编:王春贾国英审读:张贵莲校对:杜小娟美编:李文静报社地址:山西省太原市晋阳街202号英语周报社邮编:030006●电话:0351-7773933印刷:太原市文兴印业公司(太原市寇庄南街26号)●订阅:本报发行部●订阅热线:0351-7333565●排版:本报激光照排中心。广告经营许可证号:晋工商广字1401004000035

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    学生用人书名师导学·选择性考试第一轮总复·化学数,W、Y、Z的最外层电子数之和为11且数之比为1:1:1。若在各自的水溶液答题Y、Z的最外层电子数相差1。下列说法正确中,A能抑制水的电离,B能促进水的电案号的是离,则A的化学式为,B的化1A.W的氢化物的沸点比Z的氢化物的沸学式为2点低10.A、B、C、D、E五种元素中只有E为金属元3B.W与Y可形成化合物Y4W素,五种元素的原子序数按B、D、C、A、E的4C.Z与X在自然界中形成不溶于水的离子顺序依次增大,D、C元素在元素周期表中5化合物位置相邻,在一定条件下,B的单质可以分D.W与X只能组成两种化合物别和A、C、D的单质化合生成甲、乙、丙化二、非选择题合物,C的单质和D的单质化合可得丁,9.元素X、Y、Z、M、N均为短周期主族元素,且戊、己、庚均为化合物。已知乙、丙每个分原子序数依次增大。已知Y元素原子的最子中均含有10个电子,下图为相互转化外层电子数与核外电子总数之比为3:4,M关系:元素原子的最外层电子数与次外层电子数甲之比为3:4,且M原子的质子数是Y原子A的单质区风留克行的2倍;N、Z、X+的半径逐渐减小;化合已的单质庚物XN在常温下为气体。据此回答下列E的单质问题:(1)下面是元素周期表的一部分,请将A、(1)写出Z与N形成的化合物的电子式:C、E用元素符号填在相应的位置上。(2)X与Y可分别形成10电子和18电子的分子,写出该18电子分子转化成10电子分子的化学方程式:(2)写出A的最高价氧化物对应水化物的(分解反应)。化学式(3)如图表示由题述元素组成的两种气体分(3)戊的分子式为。B与D形成子在一定条件下的密闭容器中充分反应的原子个数比为2:1的化合物中,D原前后的转化关系,请写出该转化过程的子最外层为8电子结构,请写出该化合化学方程式:物的电子式:(4)A、B、C、D四种元素原子半径大小顺序609为(用元素符号表示)。ong°3(5)A、B、D三种元素形成的化合物中,含有(●代表M原子O代表Y原子)化学键的类型为(4)A、B均为由题述五种元素中的三种元素组成的强电解质,且组成元素的原子个426

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

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  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    第四章非金属及其化合物2.(2022山东菏泽期末)煤、石油、天然气是重要的B.氧化钙:吸氧剂化石能源,下列有关说法正确的是C碳酸氢钠:膨松剂A.甲烷与足量的氯气发生取代反应,产物只有D.阿司匹林:解热镇痛药四氯化碳和氯化氢4.(2022湖北武汉期末)下列关于医药和食品添加B.焦炉气是煤干馏的产物之剂的常识性介绍,说法错误的是C.汽油、煤油等都是石油裂化的产品A.亚硝酸钠有一定的毒性,还会与食物作用生D天然气的主要成分是甲烷,它是可再生能源成致癌物,因此不能用于肉制品的生产3.(2022河南开封联考)下列关于金属冶炼的说法B处方药需要凭医生处方才能从药店获得,并正确的是在指导下使用A.电解法获得镁时,可在C02或N2中降温冷却C缓释药物可以减少每天吃药的次数,方便了B.热还原法常用的还原剂有C0、H2、C、Al等人们的药物使用C.金属Na、Mg、Al均能通过电解熔融氯化物D.合成色素的着色力强,稳定性好,成本较低,的方法获得因此部分合成色素可以在食品加工过程中D.人类历史上金属被发现的顺序与金属的活添加泼性无关考点三环境保护与绿色化学考点二化学品的合理使用考向1环境问题与环境保护考向1化肥、农药的合理施用1.(2022江苏淮安期末)2022年世界环境日的主1.(2022湖南长沙期末)化肥和农药对农业的增题是“共建清洁美丽世界”。下列做法不应提产、增收起着重要作用,但施用不当也会给人倡的是类和环境带来危害。下列关于化肥或农药的A.推广电动汽车,践行绿色交通施用描述不正确的是(B.拒绝露天烧烤,合理健康饮食A.对于已结块的硝酸铵,敲击粉碎后施用C.秸秆就地焚烧,增强土壤肥效B.磷肥的大量施用可能造成水体富营养化D.净化工业尾气,减少雾霾生成C.复合肥料能同时均匀地供给作物几种养分,2.(2022河北唐山期中)环境污染问题越来越受到肥效高人们的关注,造成环境污染的主要原因之一是D.有害农药的滥用会导致粮食、果品、蔬菜等人类生产活动中过度排放有关物质。下列环境的污染问题与所对应的物质描述不正确的是()2.(2022辽宁大连期中)合理施用化肥,有利于农A煤等化石燃料的燃烧常伴随着大量烟尘作物生长和减少环境污染,下列有关化肥说法C02、S02和氮氧化物等有毒物质的排放正确的是B.臭氧层破坏主要是因为人类大量使用的制A.要大量施用化肥才能够获得高产冷剂,如氟利昂等B.氯化铵与熟石灰混合施用,既施了氮肥又改C.S02、NO2均可以产生酸雨良了酸性土壤D.光化学烟雾主要是由汽车、工厂产生的NO:C硝酸钾属于盐,是复合肥料等引起的一种有毒烟雾D.所有化肥都能溶于水考向2绿色化学考向2合理用药安全使用食品添加剂3下列实验或叙述中,不符合绿色化学理念的是3.下列物质与用途对应不正确的是A苯甲酸钠:食品防腐剂A.用乙醇汽油代替普通汽油作汽车燃料·99·

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    第三单元物质构成的奥秘课题1分子和原子课时1物质由微观粒子构成491考建议用时:20分钟教材改编题B.该实验说明分子在不停地运动C.若将烧杯中的水换为热水,则品红扩散◆基础《速率不变知识点1构成物质的微粒121考D.用玻璃棒搅拌后,发现水迅速变红,说明1.(教材P49图改编)下列对图片的认识不正搅拌可以加快分子运动速率确的是知识点3利用分子、原子的观点解释宏观现象363考4.(教材P49素材改编)氧气被压缩成液氧储用扫描隧道显微镜通过移走硅原存在钢瓶中,用分子的观点解释该过程中发获得的苯分子图像子构成的文字生的变化,正确的是A.分子、原子是真实存在的A.氧分子质量增大B.氧分子间的间隔减小B.苯是由苯分子构成的C.氧分子体积变小D.氧分子的个数增多C.硅是由硅原子构成的5.(教材P49素材改编)春、夏、秋、冬四季常D.只有通过现代科学仪器才能使硅原子运动见的下列现象中能用“分子在不断地运动”2.(教材P48素材改编)下列事实能证明物质解释的是是由微观粒子构成的是A.春季:柳絮纷飞B.夏季:蛙鸣蝉叫①湿衣服经晾晒变干C.秋季:金桂飘香D.冬季:漫天飘雪②经过花圃时闻到花香6.(教材P52第2题改编)生活中的下列现象,③酒精敞口放置质量逐渐减小用分子的相关知识解释正确的是(④一袋大米中有很多米粒A.水蒸发为水蒸气一分子体积变大A.①②③B.①②④B.1L绿豆和1L小米混合后体积小于2LC.①③④D.②③④分子之间有间隔知识点2分子运动现象的探究7考C.香水、汽油要密闭保存一分子停止运动3.(教材P48实验改编)如图为化学兴趣小组D.自然界中水的天然循环一分子在不断运动同学进行的品红在水中扩散的实验。下列7.(教材P49素材改编)请从分子的角度分析相关说法或做法不正确的是并解释下列事实。品红(1)妈妈在厨房炒菜,我在窗外就闻到了香限味:A.静置一段时间,可观察到烧杯中的水变(2)新装修好的房子,不宜马上搬进去居为红色住:25

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    参考答案及深度解析50.B【解析】考查形容词。由空后一句“You'll soon be facing63.to offer【解析】考查非谓语动词。分析句子结构可知,本the best of the best in the county bee.”可知,姐姐告诉作者以句已有谓语动词helped,且句中没有连词,所以空处应填所后会遇到更强的对手的,所以此处是提醒作者不要那么骄给词的非谓语形式。由句意可知,此处表示目的,所以应用傲。upset意为“不安的”;proud意为“自豪的,骄傲的”;动词不定式。故填to offer。.anxious意为“着急的”;frustrated意为“沮丧的”。故选B。64.families【解析】考查名词的数。由句意可知,此处泛指来51.D【解析】考查动词。根据下文“I am the alpha-best with no自贫困家庭的女孩,所以空处应用名词的复数形式。故填efforts at all.”可知,作者认为自己是最棒的,所以此处表达families。的是,其他拼词选手比不上他。admire意为“羡慕”;pass意65.has changed【解析】考查时态。由时间状语“Since its为“通过”;influence意为“影响”;match意为“与…相匹opening in2O08”可知,该句应用现在完成时(has/have敌;和…不相上下”。故选D。done),且主语she是第三人称单数,所以此处的助动词需用52.C【解析】考查动词。由上文的“After six rounds'”及下文的has。故填has changed。“from more than 100 to just seven”可知,经过了六轮比赛之知识拓展现在完成时中常见的时间状语后,学生数从100多人减少到只有7人。jump意为“跳跃”;rise意为“上升”;decrease意为“减少”;spread意为“传播,(1)“for+时间”:for后面可以直接加时间数字表示时间,如along time,several days,some time等。蔓延”。故选C。53.D【解析】考查名词。根据下文中的“Unfortunately,I(2)“since+表示过去时间的单词或句子”:表示过去某时开crashed with the word maestro at last..”可知,作者最后撞上了始的动作或者状态一直持续到现在。“maestro”这个词。所以此处表达的是,如果让作者拼写“航(3)现在完成时常常与表示不确定的过去时间状语连用,如空航天”或“圆锥形”这样的词,他就会创造历史。这与后文already,yet,just,before,recently,lately等(注::already常用的Unfortunately才能形成对比。concern意为“担心”;effort于肯定句,yt常用于否定句或疑问句中,且常位于句末)。意为“努力”;promise意为“承诺”;history意为“历史”。故(4)现在完成时常常与表示频度的时间状语连用,如often,选D。sometimes,ever,never,twice,once,rarely,three times,onseveral occasions等。54.C【解析】考查形容词。根据上文可知,作者没能拼出·Have you ever been to the Great Wall?你曾经去过长城吗?“maestro”这个词,所以作者呆呆地站在那里很长时间。harmed意为“受伤害的”;devoted意为“投入的”;frozen意为(5)现在完成时还常与包括现在时间在内的时间状语连用,“冷冻的,僵住的”;addicted意为“上瘾的”。故选C。now,up to now,during in the past/last few days/weeks/months/years,so far等。55.C【解析】考查名词。根据下文中的“with a small bow”和“and then shook hands with the runner--up(亚军)”可知,最终66.suffering【解析】考查动名词。prevent sb(from)doing sth的获胜者与作者之前的行为是正相反的。role意为“角色”;为固定搭配,意为“阻止某人做某事”。故填suffering。way意为“方法”;opposite意为“对立的人(或物),对立面,67.that【解析】考查宾语从句。分析句子结构可知,动词say反面”;behavior意为“行为”。故选C。后需接引导词引导宾语从句,从句结构完整,所以空处需用56.A【解析】考查名词。根据上文语境及常识可知,在比赛最引导词that引导宾语从句。故填that。后,应给获胜者颁奖杯,且空处与上文“The trophy(奖68.but【解析】考查连词。由空处前后的句意可知,前后句之杯)was presented to me.”一句中的trophy是原词复现。故间是转折关系,所以空处需用连词but。故填but。选A。69.deeply【解析】考查副词。空处修饰动词touched,所以应57.B【解析】考查动词短语。根据下面一段作者的表现和空用副词作状语。故填deeply。前的“I got to know Deandra's words”可知,作者此时是明白70.a【解析】考查固定短语。“make a/an+ad.+difference了姐姐的话,觉得她的话有道理。take place意为“发生”;to”为固定搭配,意为“对…产生…影响”,real是以辅make sense意为“有道理”;come out意为“出版,发行”;catch音音素开头的单词,前面应用冠词a。故填a。up意为“赶上”。故选B。第四部分写作58.D【解析】考查动词。根据后文作者说的话“I'm sorry I was第一节so impolite when I won..”可知,作者应是向Alexa道歉。relateHealth意为“联系”;occur意为“发生”;contribute意为“贡献”;Ladies and gentlemen,apologize意为“道歉”。故选D。I'm honor to share the topic "health"with you.As the59.A【解析】考查名词。根据下文中的“Lt'shonoredon it,partner.”一句可知,Alexa问作者需不需要一个学伙伴。saying go,health is above wealth.You must feel the samegoes空处与后文中的partner是原词复现。故选A。way.Without health,we can't achieve that we set out to do.60.D【解析】考查动词。根据下文中的“shaking my hand”可what知,Alexa应是和作者握手。let's shake on it为固定表达,意With health,how can we catch up with the rapidly changed为“握手确认(达成共识)”。故选D。Withoutchanging第二节world?In brief,health is anything.everything体裁:记叙文主题:人与社会一时代楷模张桂梅To keep health,we should have a balanced diet,form good【语篇解读】本文主要讲述了云南省丽江市华坪女子中学创始人healthy兼校长—张桂梅的故事。living habits,take on enough exercise and keep a good state of61.wh0【解析】考查定语从句。分析句子结构可知,空处引导mind.In conclusion,I personal believe a healthy life is the source的是非限制性定语从句,先行词是gl,指人,且空处在定语personally从句中作主语,所以应用关系代词wo引导该定语从句。故of happiness.So let's keep A eye on our health and enjoy a healthyan填who。life.Thank you.62.traveled/travelled【解析】考查时态。由时间状语in第一处:honor-→honored【解析】考查固定短语。be动词后面1957可知,该句应用一般过去时,表示过去发生的事情。故应用形容词作表语。be honored to do sth为固定用法,填traveled/travelled。意为“做某事感到荣幸”。故将honor改为honored。D9卷2·英语

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    参照秘密级管理★启用前试卷类型:A1.What might you get on a special holiday?A.Faster delivery.B.Wider choices.C.More discount.D.Extra gifts.2022一2023学年第一学期高三质量检测2.In which aspect is online flower delivery better than over the phone?A.You see pictures of the flowers.英语试题2023.01B.You needn't drive to the shop.C.You can pay afterwards.注意事项:D.You have a faster service.1.答题前,考生务必将自己的姓名、准考证号等填写在答题卡上。3.What is the purpose of the text?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。A.To show the advantages of online shopping.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B.To help run an online floral business.上。写在本试卷上无效。C.To advertise an online flower shop.3.考试结束后,将本试卷和答题卡一并交回。叩D.To promote online flower delivery.B的第一部分阅读(共两节;满分50分)I still remember my father's embarrassment the day when he was invited to have第一节(共15小题;每小题2.5分,满分37.5分)dinner at a colleague's house.Freshly arriving in Brazil,and not being able to look up on阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项。the Internet,he offended his hosts by making a hand gesture-a circle with the thumb andAindex finger.He had always understood it to mean "OK",but in Brazil,it meantIt's hard to imagine any gifts more convenient than online flower delivery.There issomething different.no driving to the local florist shop,no waiting on hold,and no searching for a phoneThe episode was swiftly forgotten.My father's colleague understood that he probablynumber for a flower delivery service in the area you need to send.You simply select thebouquet or arrangement,and enter the delivery and payment information.Besides,manywasn't yet aware of the local meaning of the gesture.He gently explained it meantsomething rude,and then it was filed away under "things not to be done in Rio".offer additional gifts including gift baskets,chocolates,teddy bears and so on.Fast Flower Delivery OnlineI was reminded myself in China.After I replied to a friend's WeChat message with a製When you buy flowers online,you can get flower delivery just as fast as if you placeVan Gogh sticker that I thought meant "keep fighting",another friend told me I used itthe order in person or over the phone.If you place your order early in the day with anwrong.Internet florist,many of the best can deliver on the same day."The Chinese version is a bit different,she said,taking out her phone and showingSend Flowers for Lesstome.“See these characters?They mean‘I will hit you!”Customers often find better prices when buying on the Internet,because onlineLife is full of crossed meanings.In India,you sign to someone to come over withflower shops typically have lower prices and more discount deals.These shops have lessyour palm down,not up.And in the Middle East,you never use your left hand foroverhead(运营费用)and costs,so they can pass the savings on to the customer.Inanything public.addition,you usually get a much better deal,especially at busy holidays such asAs adults,we understand that even if it hurts,a mistake is only an insult经Valentine's Day,Easter,Mother's Day,Christmas,etc.when it is deliberate.Yet,many conflicts come from misunderstanding,and history isSpectacular Flower Selectionfull of the unfortunate outcomes of cross-cultural communication.A typical local flower shop does not have a big selection to choose,and also,whenMy father's pre-Internet Brazilian mistake was forgiven because of context-he hadyou order flowers over the phone you can't see what you'll get.Online flower shops havejust arrived and he didn't know its local meaning.But when context is absent or simplypictures,and still many have a spectacular selection to choose from.Plus,if one Internetdifferently understood-especially in the social media-perhaps it is time we all thinkflorist doesn't have what you want,it'll take just a few seconds to buy flowers online fromtwice before typing or talking,especially when the consequences can be more severe thananother florist site.the misuse of a WeChat sticker.高三英语试题第1页(共8页)高三英语试题第2页(共8页)

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    广西武鸣高中2024届高三(上)开学调研测试题答案化学一、选择题:本题共15小题,每小题3分,共45分。每小题只有一个选项符合题目要求。题号12345689101112131415答案D BBABCDDDDCDBB二、非选择题:本题共4小题,共55分。16.(除特别注明外,每空2分,共10分)(1)三颈烧瓶(1分)(2)反应液不再分层(或无油珠)(3)①除去多余的高锰酸钾,避免加盐酸时生成有毒的氯气②AC(4)苯甲酸易升华而损失(2分)(5)重结品1分)17.(每空2分,共16分)(1)MnO2+S03+2H=Mn2++S04+H20(2)4.7—5.2(3)2MnCO3+Cu2++H2O=Cu2(OH)2CO31+2Mn2+CO2 1(4)Mg2+2F-=MgF2↓(5)若NH4)2S溶液浓度过大,会生成MnS沉淀,造成产品损失(6)NH4)2SO4和Na2SO4(7)+42a-V(am)+(an)18.(除特别注明外,每空2分,共14分)0.375(1)-49kJmo1(2)①C02(1分)②CD③t④a(a+0.1)(0.14-a)(0.43-a(3)阳离子(1分)(4)C0,+6H++6e=CH3OH+H0(5)6:119.(除特别说明外,每空2分,共15分)(1)酰胺基、醚键(2)BDOHCHOCHO3)OCHHCl→OCH5)①3化学答案第1页共7页

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    词工(四)夏中等补密李高英语·答案解析water and picking vegetables and fruit.At night,I buriedpick走向重点2023年高考密破考情卷宁夏(四)myself into learning.Seeing them live a happily life,I felt【听力材料】inhappyrelieved.Text 1+L.【解析】第一句的that→which。非限制性定语从句不能M:How was your trip to London?W:It was fantastic.I visited a lot of places.用that引导;which引导非限制性定语从句,修饰前面churches,museums and the royal palaces,的名词village,which在从句中作主语。ar山is门and the weather was fine.Horrible traffie,though.heB2.【解析】第二句的vegetable-→vegetables。vegetable是Text 2可数名词,many修饰名词复数。omod ob w bM:Do you like eating beef,Karen?3.【解析】第三句的go-→went。时间状语是I,ast summer词W:Not really.I hardly eat red meat such as beef,porkvacation'“去年暑假”,表达过去的动作,所以用一般过去单and mutton.eat chicken.时。M:Why?m4.【解析】第三句的here→there。.作者叙述去年暑假在那W:Many studies have tied red meat to cancer and heart里(爷爷奶奶那里)度过了一个月。o1:disease,so I think I'd better avoid such risks.5.【解析】第四句的earlier一→early。very修饰形容词和副Text 3词的原级,且这里没有比较的含义。1munM:Who is the best player in your school football team and6.【解析】第五句的early前加an.early的发音以元音音basketball team?素开头,前面用an。2W:As I know,John is the most popular one in the football7.【解析】第六句删除but。Though引导让步状语从句,team,but Jack plays the best in the team.As for the后面是主句,不能再与but连接。安basketball team,David is second to none.8.【解析】第六句的picking一pick。help sb.do sth,“帮助Text 4某人做某事”;weed,water,pick三个行的省略to的动词不定式作宾语补足语。W:I need to arrive at the ABC Corporation in haf an9.【解析】第七句的into→in。bury oneself in(doing)hour.I'm not sure if I have time to go there on a bus ormaybe I should take a taxi.sth.“埋头做某事”,固定搭配。1O.【解析】第八句的happily-→happy。形容词happy作M:It's just a ten-minute walk.Go along the street and定语,修饰后面的名词life。live a happy life过着幸福turn right.Then you will get there.1baAText 5nor to的生活。M:How much is the parking fee here?书面表达0To Study Liberal Arts or Science?W:It's 1 dollar an hour,sir.If you park your car here lessRecently there is a heated debate in our class onthan 1 hour,we charge you 1 dollar;if you park morewhether to study liberal arts or science.The students'than I hour and less than 2 hours,we charge you 2dollars and so on.opinions vary from person to person.Some students think it is better to learn liberal arts.M:OK.Let me see.I parked my car at 9:00,and it'sFirst of all,it's easier to learn liberal arts.Besides,jobs11:45now.related to liberal arts are not tiring.In contrast,science isText 6W:I was hoping that I'd go to the outdoor shopsdifficult and it takes a lot of pains to learn it.However,others hold the opposite opinions.In theirdowntown today if the weather was fine or evenview,there are a wider range of majors to choose from ifcloudy.But look outside.It's wet everywhere.It'sthey learn science.Additionally,students of science arereally disappointing.,,M:Do you want to go to the Mega Mall with me instead?easier to find a good job than students of arts.Personally,I think what is important is yourI'm going to drive my car there.It's just opened.interest,which decides whether to study liberal arts orW:That sounds good to me.Otherwise I would end upstaying at home doing nothing.science,.姑,再只加稀以水的其,行殖热自的断前感c17B

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    Several minutes later,a bus stopped and theBbreak rise true people area closedriver(52)noticed them.He decided to helpheavy tower they window happen pupilthem.He asked them to get on the bus.After thebus arrived at the terminal station,he offered themA video gets popular these days.In the video,several people save two school 70 and an old womantowels and hot water.When the rain stopped,aIt 71 after a grandmother picked up herworker sent them home by (53)cargrandchildren from school.On that day,it rainedThree days later,the girl's family came to say2.Their car was trapped(被困)in water.Thethanks to the kind bus driver.People could feel thewater 73 high.They couldn't open the door to getwarmth of the city through the driver's deed.out.70.pupils71.happened72.heavily 73.roseEbreak rise true people area close54.Kathy lives in Shanghai.If she has a picnic nextheavy tower they window happen pupilweek.she'd better choose TuesdayOlivia,the children's mother,got a call from the55.When is World Meteorological Day?On March 23.grandmother and found their location(位置)using online apps.56.Linda is good at painting and wants to doOlivia called the 74 hotel and asked for help.something for the weather.What activity can shetake part in on World Meteorological Day?She also sent messages through her social mediaShe can draw pictures to tell people what toaccount(社交账号).Charlie and Henry,twodo to make a difference.workers in the hotel,made 75 way to the trappedcar with a kitchen knife.74.closest75.their57.How did people know the weather in the past?break rise true people area closeThey watched clouds or felt the wind.heavy tower they window happen pupil58.Please translate the underlined sentence intoCharlie climbed on the car,hoping 76 the car glassChinese.with the kitchen knife.But it didn't work.通过天气预报,人们还可以知道什么时候会发At the same time,Matilda,the children's music生一些恶劣的天气。teacher,came.He swam to the car after seeingOlivia's message.59.What were you doing when it rained in yourHowever,the three people still couldn't breakarea the last time?those car 77.I was sweeping the fl oor when it rainedheavily that noon.76.to break77.windows八.词语运用Abreak rise true people area closeConner and Kane are two students of Grade 8.heavy tower they window happen pupilOne day,60 they were on the bus to school,theAt that time,an owner of a nearby noodledriver stopped the bus suddenly.They saw the busdriver pass out(昏倒).With no adults(成人)near torestaurant brought a big hammer(锤子)andhelped save them.depend 61,the kids knew it was up to themselves.Conner fi rst rose from his seat and made 62 wayWith those 78 help,the two children and theirtoward the driver.He noticed that her face wasgrandmother fi nally got out of the car.Olivia said,really red and she 63 shaking.He quickly realized"To tell the 79,I was so scared.They are ourthat she needed doctors'help right 64heroes!”60.when61.0n62.his78.people's79.truth63.was64.awayAt the same time,Kane picked 65 the radio andsaid,"There's something wrong 66 our bus driver.十.书面表达Seeing what was going on,other children on the每个人都有自己最难忘的一件事。上周六李华和bus were 67 scared that some even started crying.爸爸去游泳,一名男孩不慎掉入泳池,李华爸爸将“Everything will be OK,”Conner said.Then he其及时救出并采取急救措施。假如你是李华,你校organized them to move to the back of the bus 68英文报举办了以“我最难忘的一件事”为主题的征give the driver more fresh air.At last,the driver文活动。请你将周六的所见所闻写一篇英语短文投was saved and everyone was safe.稿。Sometimes it's hard to take proper action under提示:pressure,but trying your best to do something is1.事件发生的时间和地点;always better 69 just being worried.2.事件发生的经过;65.up66.with673.事件发生后你的感想。68.to69.than4

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    2024届新高三秋季人学摸底考试化学参考答案1.【答案】A【解析】瓷瓶、玉印和玉佩饰的主要成分是硅酸盐,青铜面具的主要成分是铜锡合金,A项符合题意。2.【答案】A【解析】本题考查了分子的极性判断。0F,中0上的孤电子对数为)×(6-1×2)=2,。健电子对数为2,价层电子对数为4,0F2的空间构型为V形,分子中正、负电荷中心不重合,0F2属于极性分子,A项符合题意;CS2中C上的孤电子对数为)×(4-2×2)=0,σ键电子对数为2,价层电子对数为2,CS,的空间构型为直线形,分子中正、负电荷中心重合,CS,属于非极性分子,B项不符合题意;SiCL,中Si上的孤电子对数为)×(4-1×4)=0,σ键电子对数为4,价层电子对数为4,空间构型为正四面体形,分子中正、负电荷中心重合,SC14属于非极性分子,C项不符合题意;02属于非极性分子,D项不符合题意。3.【答案】B【解析】本题考查了实验操作与实验用途对应判断。皂化反应为油脂在碱性条件下的水解反应,A项正确;模拟侯氏制碱法应使用氯化钠饱和溶液,B项错误;碳酸钠饱和溶液可以吸收乙醇,中和乙酸,降低酯的溶解度,C项正确;NaHCO.3可与HCl反应生成NaCl、CO2和水,因此碳酸氢钠饱和溶液可除去CO2中的HCl气体,D项正确。4.【答案】B【解析】本题以氧化石墨烯为载体,考查了物质的导电性、稳定性、键能和原子杂化等。石墨烯变为氧化石墨烯,大π键遭到破坏,故导电性减弱,A项错误;氧化石墨烯中含有碳碳双键和羟基,易被氧化,故抗氧化能力比石墨烯弱,B项正确;氧化石墨烯中C一C键和C一0键均为共价键,C一C键的键长比C一0键K,故C一C键的键能比C一0键小,C项错误:氧化石墨烯中,C原子的杂化方式为sp2和sp,D项错误。5.【答案】C【解析】在碱性条件下氢气被氧化:H2+2OH-2一2H20,A项错误;以铜为电极,铜在阳极发生氧化反应,阳极反应式为Cu-2e一Cu2+,B项错误;亚铁离子还原高锰酸根离子,C项正确;丙烯分子中碳碳双键与溴加成,形成碳溴单键:CH,CH=CH,+Br,→CH,CHBrCH,Br,D项错误。6.【答案】A【解析】前20号元素的原子中,最外层电子排布式为s的原子有氢、锂、钠、钾,元素氢、铍、铝的所在周期序数等于主族序数,结合添加剂的组成可知,X为H元素,Y为0元素,Z为A1元素,R为S元素,W为K元素。0、S、H、A1、K的电负性依次减小,A项正确:K、A1、S、O、H的原子半径依次减小,B项错误;常温下铝不能与水发生置换反应,C项错误;稀硫酸没有强氧化性,D项错误。7.【答案】B【解析】本题考查了实验操作、现象及结论。加人浓溴水后,AL(SO4)3溶液无明显现象,AgNO,溶液中有淡黄色沉淀生成,苯酚溶液中有白色沉淀生成,A项可行;通入S02后,Al,(S0,)3溶液无明显现象,AgNO,溶液出现白色浑浊,苯酚溶液无明显现象,B项不可行;通入足量氨气后,Al2(SO4)3溶液中有白色沉淀生成,AgNO,溶液中先有白色沉淀生成,后沉淀消失,苯酚溶液无明显变化,C项可行;加人酸性KMO4溶液(硫酸酸化)后,A2(S04)3溶液无明显现象,AgNO,溶液中产生白色沉淀,苯酚溶液使紫色褪去,D项可行。化学第1页(共5页)

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    W:Could I have your keycard please?M:Here it is.I was in room 322.Text 3M:I saw an advertisement in the newspaper about a camera you have on special offer.W:Yes,the Sony Cybershot DSCT 300.It's $50 cheaper now,only $230.M:Great.I'll take it.Text 4M:Would you like to work in a bank?W:No.That would be very boring.I want to be a doctor.And I can help a lot of people.Text 5M:Can't we slow down?I'm tired.W:Slow down?Don't you realize how late we're going to be for the party?Text 6W:How's your school project going,Tim?M:The one about the sky in the evening?OK,I guess.I took some good photos of the moon last week,but then yesterday it was really cloudy.So I couldn't see anything-not even any stars.W:That was a pity.M:Yeah,but at least I've got some pictures to show my teacher.Text 7M:So,Natasha,tell me about your hobbies.Do you like computer games,for example?W:I played a lot of computer games until I was about ten.But I haven't played any for a long time.M:What do you do now?W:I prefer doing exciting things outside.Activities like climbing and snowboarding.You know something that girls may think dangerous.M:Is there anything you haven't tried,but would like to?W:I'd love to go sailing.But my dad says we can't afford it.It needs a lot of money.Text 8M:Amy,my housemate and I are having a house-warming party on Friday night.Would you like to come?W:Sure.Will there be a lot of people there?M:Yeah.We've each invited about 10 people.W:Who are they?M:Some people in our office,my sister,and a few friends from school.You won't be sitting there by yourself.W:What time is it going to start?M:Most people get off work at 6:00 p.m.,so it's going to start about two hours later.W:Should I bring anything?M:We'll have beer,but if you want to bring some juice,that'd be great.W:I could also bring some music if you want.I've got lots of songs on my new iPod.M:That'd be great.Wait for me after work then!I will come on time.Text 9M:Hello,Tourist Information.What can I do for you?W:Hello,I'm phoning about the boat trips on the River Dee.Can you tell me which days they are?M:Sure.They go every Friday and Sunday.英语答案第5页(共6页)

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    Do you mind telling me something else,like the22.What does the MSC's learning program focusattendance record,the holiday,and how to askon?for leave?Ways to help keep the sea healthy.M:Every month you have three days off,besidesB.Skills to obtain marine resources.the weekends and some important holidays.C.The main characteristics of sea lifeAfter you've been here for a year,you can have a分D.Human and natural threats to the seaone-week vacation.The leave less than half a23.What should you do if you want to get the latestday should be applied for an hour in advance,ocean information?and more than a day should be applied for three读A.Chat with local communities.days in advance.B.Call during the working hours.W:Okay,I got it.Thank you very much.C.Sign up for the teaching program.M:You're welcome.⑧Register for the MSC's newsletters.听第10段材料,回答第18至20题。t18-20CAC18.When did the volunteer program begin?第BA.2 years ago.B.12 years ago.C.40 years ago.24.Why did the author's daughter hesitate about19.What requirement does the volunteer program部going to the beach?have?A.She was an indoor girl.A.Reaching the age of eighteen.She had to complete her paper.B.Being good at speaking English.C.Having rich volunteer experience.C.She was afraid of the pandemic.20.What will volunteers do in this program?读D.She was concerned about the weather.A.Help turtles hatch eggs.B.Take care of baby turtles.C.Clear rubbish from the beach.Text 10Do you want to experience the life of volunteers?There is a great volunteer program for you.It is第aimed at helping to protect the population of Olive25.What made the author and her classmatesRidley turtles in Costa Rica,although otherdecide to take a road trip?species of turtles are also involved.The program分A.Their need to test their new car.has been running for 40 years since it began atB.Their desire to experience country life.Ostional Beach which has been an activeTheir dissatisfaction with the cast list.conservation area.(18)Volunteers can sign up forD.Their plan to seek inspiration for theirany length of time from 2 to 12 weeks.All读drama.4volunteers will be housed with local families nearthe beach.so things like tents and blankets are not needed totake.But you have to prepare a dictionary or a26.What does the author think of her college roadtranslator,because English is not common in local第trip?families.It is possible to sign up as a group or justEntertaining.B.Surprising.as an individual.It will be OK if you have noexperience but we do have a requirement of over部分C.Tiring.D.Inspiring.18.(19)Besides,a health check and a police check27.What does the author want to tell us throughthe text?are also required.The main involvements in thisprogram are recording data,removing rubbishA.We should choose friends with care.from the beach to ensure a clear passage for adult读B.We should put study first in college.and baby turtles and also assisting in eggWonderful college memories will stay.relocation.(20)This is a unique experience forD.College performance matters to our future.anyone interested in turtles and conservation.第CA28.What can we learn from paragraph 1?21.How can you possibly share your post on theA.It is easy to get along with strangers.website?分B.Many people fail to obey unwritten social rulesA.By joining the non-profit first.People have lots of concerns when dealing withBy engaging in the conversation.strangers.C.By finding more natural resources.读D.People tend to raise many questions whenD.By writing articles on ocean protectionmeeting new people.

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

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  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

    2I.D。理解具体信息。根据题干中的Jonathan Ogeleza可定位到文中的Jr.Knicks BasketballClinic部分。根据其中的This instructional basketball clinic.through a series of training可知,该项目能帮助孩子们精进球技。22.A。理解具体信息。根据题干中的word games和Al Oerter Recreation Center可定位到文中的TEEN Word Game Hour部分。根据其中的4:30p.m.-5:30p.m.可知,该活动举行的时间在下午4:30至530。23.D.推断。根据Share,Grow and Give on Martin Luther King Jr.Day部分中的Keeping with theessence of Martin Luther King Jr.Day being a day of service,there will also be an opportunity tokeep our park clean and beautiful可知,Martin Luther King Jr..Day的本质是服务,该活动将会给参与者提供打扫公园的机会,鼓励他们参与志愿服务活动。B篇主题语境:人与社会一一社会服务本文是记叙文。Michael Christensen和Paul Binder合作创立了大苹果马戏团,除此之外,Christensen还创立了“小丑关怀”项目,为儿科医院提供关怀表演。24.C。推断。由第一段中的doing a second job to help pay the bills可推知,Christensen的这份工作收入较低,无法满足日常开支。25.B。理解具体信息。由第二段中的the mobile lifestyle had made.returned to the U.S.可知,四处奔波的生活使他们俩筋疲力尽,因此他们选择结束这种生活方式,回到美国。26.D。理解具体信息。由第三段中的With special performances offered...among the mostopen-minded circuses in the world可知,大苹果马戏团为残障人士提供特殊的表演项目,让他们也能感受到同等的乐趣,这使得它成为一个思想最包容、最开明的马戏团。27.C。理解具体信息。由最后一段中的Working in teams of two可知,“小丑关怀”项目的成员表演时以两人为一组,节目也要按照这个分组准备。C篇主题语境:人与自我一一学本文是说明文。文章说明了在课堂上使用幽默对教学和学的帮助。28.B。理解文章结构。由第一段中的内容可知,Morrison在自己的书中提到,大脑研究显示在课堂上使用幽默是个不错的主意;第二段则具体介绍了其带来的好处,由此可推知t指代的就是在教学中使用幽默。29.A。理解观点、态度。由第三段中的内容可知,专家认为要使幽默在课堂中有效,应当合理使用幽默,Sean O'Brien对此表示支持。他认为教学氛围可以是有趣的、甚至是欢乐的,但不能影响学,课堂上的幽默不能像游乐场一样对其他全然不顾,即:幽默不可过度。30.D。理解主旨要义。由第五段中的humor gets students'attention because.可知,本段主要介绍了幽默为何能使学生的注意力提升、调动大脑活跃性,从而提高学效率。31.B。理解主旨要义。由全文内容可知,文章通过介绍专家和老师的观点,围绕在教学中使用幽默给教学和学带来的帮助展开说明。故B项作标题最能概括文章主台。D篇主题语境:人与社会一一社会本文是议论文。为什么我们应该将历史融入学生的科学课程中?32.C。理解具体信息。根据第一段中的Our students,these days,have little knowledge aboutthe giants on whose shoulders we all stand可知,作者认为学生对科学家的故事知之甚少。33.A。理解词汇。根据第三段中的history provides a compelling point of view..are continuousprocesses可知,历史能够为科学发现提供有说服力的视角,通过了解科学发展的历史,学生能够理解科学研究和发现是个漫长的过程。

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    B.“反应器”中温度越高,越有利于制备FeF3C.“系列操作”得到的滤液,可采用分液的方法循环利用D.“灼烧”时通入Ar的主要作用是带走水蒸气防止FeF3水解16.实验室利用环己酮和乙二醇反应可以制备环己酮缩乙二醇,反应原理及实验装置如下图所示:管口A器○0+HO入√OH对甲基苯磺酸分水器苯,△○X8)+o一水反应物和适量的苯旋塞B下列有关说法错误的是A.管口A是冷凝水的进水口B.当观察到分水器中苯层液面高于支管口时,必须打开旋塞B将水放出C.苯的作用是:作反应溶剂,同时与水形成共沸物便于蒸出水0D.若将反应物环己酮改为苯乙酮则和到岛有机产物为第川卷(共56分)二、非选择题:四个大题,每题14分,共计56分,考生根据要求作答17.(14分)高锰酸钾是强氧化剂,用途十分广泛。按要求回答下列问题:I.某化学兴趣小组以绿色的锰酸钾(K2M0)碱性溶液为主要原料在实验室制备Kn0,实验装置(固定和加热装置已省略)如下:单向阀示意图a司浓盐酸弹簧夹止水夹K2MnO浓强碱溶液二氧化锰B(1)仪器b的名称是,侧管a的作用是(2)装置C盛装溶液的成分是(3)单向阀(只允许气体从左流向右)可以起到的作用是(4)装置B中生成KMn0,的离子方程式为化学试卷第5页(共8页)

  • 2024年普通高等学校招生全国统一考试模拟试题英语一衡水金卷先享题分科综合卷

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    的分压表示的衡常数,分压二气体的体积分数X体系总压)。③在图2基础上画出其他条件相同,向体系加人催化剂时其压强随时间的变化曲线。w生物双照色西方的,R霜震方起始原料结合C0。生产聚碳酸对二甲苯酯可以实现碳成排,毁解日益紧张的能源危机,路线如下:HO-木质HCsH,0Sn-Beta HOCOH纤维素葡萄糖OH CO2OHHOOH高压州CuRu/C催aOH化COOHOHC02Rn-Sn-B催化剂02Al203醋酸CH。醋酸钴VⅧHO VICOOH回答下列问题:M(1)化合物I的分子式为堂(2)分析化合物Ⅱ的结构,预测反应后形成的新物质,参考①的示例,完成下表。序号变化的官能团的名称焙可反应的试剂(物质)反应后形成的新物质反应类型①氧化反应②加成反应烟(3)化合物Ⅲ到化合物V的反应是原子利用率100%的反应,且1molⅢ与1mol化合物a反应得到1molV,则化合物a为(4)已知化合物V的核磁共振氢谱有2组峰,且峰面积之比为2:3,写出化合物V的结构简鸣式:(6)化合物I的芳香族同分异构体中符合下列条件的有种(不含立体异构)。霄①最多能与相同物质的量的Na2CO,反应;②能与2倍物质的量的Na发生放出H,的反应。6)关于M生成Ⅷ的反应的说法中,不正确的有A,反应过程中,有H一O键断裂B反应过程中,有C一O双键和C一O单键形成DC0,属于极性分子,分子中存在由p轨道”肩并肩”形成的π健C该反应为缩聚反应)参照上述信息,写出以丙烯为起始有机原料合成。的路线(无机试剂任选)。

  • 衡水金卷先享题2023-2024高三一轮复习单元检测卷(重庆专版)/化学(1-7)答案

    14.下列实验方案或实验结论不正确的是浓NaHCONa.COMnONa,0饱和H,ONa,CO,溶液澄清石灰水①②④A.装置①可以用于实验室制C2B.装置②可以用于除去CO2中混有的少量HCIC.装置③验证Na2O2与水反应的热量变化D.装置④可用于比较NaHCO3和Na2CO,的热稳定性15.印刷电路板(PCB)是用腐蚀液将覆铜板上的部分铜腐蚀掉而制得。电子工业中常用FCl3溶液制作PCB并将腐蚀后废液回收再生,其工艺流程如图:CuPCB过量稀盐酸滤渣过量FeCl,试剂A③覆铜板浓溶液废液②滤液④过量试剂B下列说法不正确的是A.腐蚀后的废液中,主要的金属阳离子有Fe+、Cu2+、Fe2B.过程②中发生的主要反应为:Fe+Cu2+=Cu+Fe2+和Fe+2Fe3t=3Fe2+C.若过程④中加入过量的试剂B为酸化的H2O2,则反应过程中酸性增强D.若在10g滤渣中加入足量盐酸,放出1.12LH2(标准状况),则滤渣中Cu的质量分数是72%16.下列实验操作、现象及结论都正确的是选项实验操作和现象结论A将一小块金属钠投入CuSO4溶液,钠会浮在溶钠可以置换出铜液上四处游动,同时会有紫红色固体析出B向某溶液中加入稀盐酸产生无色无味气体,将该溶液一定含有C032气体通入澄清石灰水,变浑浊C室温下,向等浓度、等体积的Na2CO3和NaHCO3说明Na2CO3溶液碱性比溶液中,分别滴加几滴酚酞,Na2CO3溶液红色NaHCO3强更深D探究脱氧剂中还原铁粉是否变质,可取少量样品说明脱氧剂未变质溶于盐酸,再滴加KSCN溶液,溶液未变红高一化学学科试题第3页

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