第22题表生物种群甲乙丙丁含量(mg/kg)0.050.370.313.5根据上表数据判断,乙、丙种群体内微塑料的含量差别不大,推测二者在食物网中处于(填“相同”或“不同”)营养级。丁种群体内微塑料含量最高,原因是(3)某研究小组欲通过实验分析微塑料对土壤理化性质以及对土壤中动物、植物、微生物的丰富度的影响。对照组的实验材料是自然状态下的土壤,实验组的实验材料是。微塑料的进人会大大降低原有生态系统的抵抗外界干扰的能力,原因是(4)微塑料常被用在有清洁作用的洗漱用品中。试从污染源控制的角度提出一条缓解微塑料污染的建议:23.(12分)2021年,我国科学家在人工合成淀粉方向取得重大颠覆性和独创性的突破一在实验室成功构建出一条从C02到淀粉的人工合成途径,具体过程如下图所示。这是世界上第一次实现从头设计和构建了从C02到淀粉合成只有11步生化反应的人工途径,该过程在自然界植物中涉及了60多个生化反应及复杂的调控机制。电能→H2OC02电氢还限醇单碳缩合c,化合物三碳缩合→甲醇C6化合物生物聚合淀粉①②③④第23题图回答下列问题:(1)实验室中人工合成淀粉的整个过程类似于植物细胞(填细胞器名称)中发生的过程,植物细胞进行类似上述①~③过程需要光反应提供(2)过程①中H2的作用是作为。自然界中并不存在甲醇转化为淀粉的生命过程,所以对于人工合成淀粉的生化反应过程,关键的要求是(多选题)。A.确定各种参与反应物质的比例B.保证关键性酶活性的稳定C.提供无菌的O2D.反应容器足够大(3)若人工合成淀粉和绿色植物固定等量的C02,人工合成过程的淀粉积累量(填“大于”“等于”或“小于”)绿色植物,原因是(4)在人工合成淀粉的过程中,若因某种原因C02供应不足,短时间内图中C3化合物的含量将(填“增加”“减少”或“无法判断”)。植物叶绿体中的三碳糖除来自卡尔文循环外,还可来自(填物质名称)的转化。高二生试·第6页(共8页)
第十一单元生物技术与工程学生用书知识点四发酵工程及其应用基础知识夯实教材知识整合《青一、发酵工程的基本环节等方法将菌体分离和干燥得到产品!发酵工程一般包括,扩大如果产品是代谢物,可根据产物的性质采取适培养,培养基的配制、,接种,当的措施来获得产品。,产品的分离、提纯等方面。二、发酵工程的应用1.选育菌种:性状优良的菌种可以从1.在食品工业上的应用中筛选出来,也可以通过(1)生产传统的发酵产品,如学获得。2.扩大培养:工业发酵罐的体积很大,接(2)生产各种各样的食品添加剂,如通过入的菌种总体积也较大,因此在发酵之前还需发酵制得的柠檬酸,由要对菌种进行发酵生产味精。3.配制培养基:在菌种确定之后,要选择(3)生产酶制剂,如α-淀粉酶、B-淀粉酶、原料制备培养基。培养基的配方要经过果胶酶、氨基肽酶和脂肪酶等才能确定。2.在医药工业上的应用4.灭菌:发酵工程中所用的菌种大多是单工程、工程等的广泛一菌种。一旦有杂菌污染,可能导致产量大大应用给发酵工程制药领域的发展注入了强劲下降。因此,和都必动力。须经过严格的灭菌。3.在农牧业上的应用5.接种:扩大培养的菌种和灭菌后的(1)生产微生物肥料。微生物肥料利用了加入发酵罐中。大型发酵罐有计算机微生物在代谢过程中产生的控制系统,能对发酵过程中的温度、pH、溶解等来增进土壤肥力,改良土壤结氧、罐压、通气量、搅拌、泡沫和营养等进行监构,促进植株生长,常见的有测和控制;还可以进行反馈控制,使发酵全过等。程处于最佳状态。(2)生产微生物农药。微生物农药是利用6.发酵罐内发酵(发酵工程的中心环节):或来防治病虫害的。在发酵过程中,要随时检测培养液中的微生物农药作为的重要手段,将等,以了解发酵进程。在农业的方面发挥越来越重还要及时添加必需的,要严格控要的作用。制和溶解氧等发酵条件。(3)生产微生物饲料。微生物含有丰富的7.分离、提纯产物:如果发酵产品是微生以淀粉或纤维素的水解液、制糖物细胞本身,可在发酵结束之后,采用工业的废液等为原料,通过发酵获得了大量的369
15.ACD【解析】矿山修复过程中原有的土壤条件基本保留,发生了次生演替,A正确;矿山修复过程中生物组分增多,提高该系统的抵抗力稳定性,B错误;通过人工制造表土、植树种草等措施可加速恢复矿区生态环境,C正确;矿山生态修复考虑生态、经济和社会效益,遵循生态工程的整体原理,D正确。16.AB【解析】对小鼠注射GP3蛋白,小鼠发生体液免疫并产生相应的抗GP3蛋白抗体,A正确;①过程是将细胞甲和S20细胞融合,诱导动物细胞融合的常用方法有PEG融合法、电融合法和灭活病毒诱导法等,B正确;融合后的细胞至少需要经过两次筛选,第二次筛选需进行克隆化培养和抗体检验,C错误;由一个B淋巴细胞增殖形成的细胞群所产生的单一型抗体分子就称为单克隆抗体,D错误。三、非选择题(共60分)17.(除标明外,每空1分,共10分)(1)H2 O NADP(2分)O2(2分)(2)电子在沿类囊体膜传递过程中有逸出(流失或散失)(2分)(3)强实验C组(抑制类囊体蛋白PsbS)与实验B组(抑制叶黄素转化)相比较,C组(抑制类囊体蛋白PsbS)光合作用效率降低更大(2分)【解析】(I)从图中可以看出,光系统Ⅱ可以将水光解产生e、氧气、H+,e经过一系列的传递体形成电子流,接受电子的是NADP+,该物质接受电子和H后,生成了NADPH。在有氧呼吸过程中产生的H和e,与NAD生成NADH,NADH与氧气反应生成水。(2)PSⅡ将e传递给质醌使之还原,PSI从质醌夺取e使之氧化,由于电子在沿类囊体膜传递过程中有逸出,故一般植物的PSⅡ:PSI的比率大约为1.5:1。(3)据图可知,实验C组(抑制类囊体蛋白PsbS)与实验B组(抑制叶黄素转化)相比较,C组(抑制类囊体蛋白PsbS)光合作用效率降低更大,因此在高光照条件下,类囊体蛋白PsS数量变化比叶黄素转化对绿色植物的保护作用强。18.(除标明外,每空2分,共13分)(1)滋养层(1分)(2)染色体结构和数目变异(3)①XB所在的b所在的②bbXsRYX③Ⅱ19.(除标明外,每空1分,共12分)(1)自由扩散分级调节激素起作用后即失活(2)G℃可抑制细胞因子释放,促进淋巴细胞凋亡,降低机体的免疫排斥反应(3)乙酰胆碱和抗原(2分)去甲肾上腺素释放减少,使T细胞释放乙酰胆碱减少,减弱了对B细胞的刺激(2分)(4)①正常造血干细胞并注射适量X抗原②异常造血干细胞并注射等量X抗原③减少实验误差④抗X抗原的抗体产生量【解析】(1)GC是类固醇激素,进入细胞的方式为自由扩散;激素发挥作用后即失活,所以激素需要不断地合成,GC的分泌受到下丘脑一垂体一肾上腺轴的分级调节。(2)由题意可知,GC可抑制细胞因子的释放,降低免疫系统的功能,在器官移植时,可使用适量的GC以降低免疫排斥反应,提高成功率。(3)B细胞可以接受抗原的刺激增殖分化,由图2可知,B细胞还可以接受乙酰胆碱的信号刺激;去除脾神经后,去甲肾上腺素释放减少,使T细胞释放乙酰胆碱减少,减弱了对B细胞的刺激。(4)本实验的目的是证明小鼠B细胞缺少胆碱类受体导致体液免疫能力降低,所以实验的自变量是胆碱类受体是否被破坏,实验设计思路为:取生理状态相同的小鼠若干只,去除小鼠自身造血干细胞,获得不产生B细胞的小鼠,随机均分为两组,将其中一组小鼠移植正常造血千细胞并注射X抗原作为对照组,另一组小鼠移植异常造血千细胞并注射X抗原作为实验组,一段时间后,检测两组小鼠抗X抗体的产生量,为了减少实验误差,要对对照组和实验组均测定多只小鼠。故①为正常造血干细胞并注射适量X抗原;②为异常造血干细胞并注射等量X抗原;③为减少实验误差;④为抗X抗原的抗体产生量。生物学参考答案(附中版)一3
杆菌细胞内。考点48教材实验汇编1.B解析:用高倍显微镜无法观察到大肠杆菌中有核糖体分布,A错误;高倍镜下可观察到花生子叶细胞中被染成橘黄色的脂肪颗粒,B正确;观察到黑藻的细胞质环流方向与实际流动方向相同,C错误;无法观察到水分子的移动,D错误。【归纳总结】显微镜成像特点:放大倒立的虚像。光学显微镜只能观察到较大的结构,如叶绿体、线粒体(需染色)、液泡、细胞核等,核糖体等无法被观察到。2.B解析:该实验属于对比实验,其中有氧组为实验组,无氧组也是实验组,A错误。使用溴麝香草酚蓝溶液,可根据变黄时间判断C02浓度的高低,B正确。在0到15分钟,有氧呼吸的速率为(24.5一18.6)×10÷15≈3.93mmol/min,C错误。在0到15分钟,有氧呼吸的速生物·参考答案/51
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(可溶于氨水,得到无色溶液,放置变为深蓝色)。根据上述实验所得结论:①Cu2+和SO32能发生复分解反应和氧化还原反应,且复分解反应速率更快;②21.(12分)黄酮哌酯是一种解痉药,可通过如下路线合成:(1)NaOH浓H2S04(I)NaOH熔融2002,一定条件,C,H,0CH:CHCOCISOH(2)HCOH (3)HCIOCOCH,CHCOOHABDECOCH,CH苯甲酸酐OH一定条件COOHCOOHF黄酮哌酯回答问题:(1)化合物D的官能团名称是(2)黄酮哌酯的分子式是(3)下列说法正确的是A.A→B的反应类型为氧化反应B.化合物B为一元强酸,可以制备合成洗涤剂C.可以用FeCl3溶液鉴别E和F。D.化合物E与氢氧化钠溶液反应,耗2 nolNaOH(4)写出DE的反应方程式(5)X是F的分异构体,符合下列条件的X可能的结构简式为①含有酯基②含有苯环③核磁共振氢谱有两组峰(6)CH3COOH设计以OH为原料合成COCH3的路线CH3COOH(其他试剂任选)。高二化学学科试题第8页(共8页)
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The intense cold and pressure in the deep sea excellently preserved the tusk.The researchteam plans to examine the fossil carefully and even determine the long deadcreaureprodThey suspect it's over 100,000 years old.therno sdeep-sea environment is different from those we have seen elsewhere,"man32.palconitologistDanidFieheraidinasetenen,notigRoSanhfnh'ntheoceanare in much shallower waters.e know so little about the deep ocean that pretty much anyone can find something ncsc8aaangomehingunqaedonheAgeaf4oaheNatiolcemoeriAdministoo33.Mashable last year.28.What made scientists feel unexpected about the deep seaA.The sources for valuable medicines.B.The finding of an-ivory fro mmoth.C.There are many never-seen-before animals.34.鼠D.There used to be a mammoth in the deep ocean29.What does the underlined word"stunned"mean in paragraph 2?35.A.Shocked.B.Interested.C.Devoted.D.Curious.蜘30.Why was the tusk of the mammoth preA.Because there was no creatures'disturbance.脚B.Because of the effort made by the research team.第C.Because of the extreme environment in the deep sea.D.Because the tusk had stayed under sea for a short time.选31.What is the best title for the text?A.The research of the deep seaCguB.The importance of exploring the deep sea was interestingsarC.Scientists found a mammoth tusk in the deep sea新D.The meaning of finding a mammoth tusk in the deep seaDthIn the near future,instead of going to your wardrobe (to choose something to9名throw on for your next video call,you might turn to your virtual wardrobe to pick out a 3Ddigital dress to wear.At least,that's what a number of people in the fashion and tech spaceare relying on as more businesses look to the promise of digital fashion.Moreover,thosevirhetual clothes won't just be for your video calls,but could evenlly be wornalvethevirtuorld,and eventually,perhaps,viewed on your body in the realword througtheugmeenre"There are more and moresecond orlds'where you can express yoursef But therested Reality (AR)glasses.probably an underestimation of the value being attached to individuashntothemseinartdthatuproducthokfreficer Robert sd.As the fied develops thereaysithemyourf hrouhAR provdngioryouButwhyhoud we repceorphys?rpresionthroughdigitalclohes,whichnowlokincreasneymoredlegantthaakstodevelopmen inndtchologyexists in the physical world,and it will exist in theirtu world,sidHe explained,"From the brand side,it's incredibly profitable to sellclothes withouWhitehouse,a designer.·22-03-383C,【高三英语第5页(共8页】
2022/4/11高分说33.C细节理解题。根据文章开头两句可知选C。【常考短语】a spoon of一勺;be full of装满【常考句型】be ready to do例句:Your ice cream is ready to eat!(What to do内容的最后一点)译文:你的冰淇淋可以吃了!七年级第48期第24版高分说B【语篇解读】本文主要介绍贵阳一家社区健身房。34.D推理判断题。文章开头介绍了一位使用社区健身房的居民,通过他引出了本文的关键词(社区健身房),故选D。35.A细节理解题。根据第二段的第一句,可知选A。36.C细节理解题。根据第三段的第二句,可知选C。七年级第48期第24版53
参考答案Ba(OH)2溶液代替盐酸和氢氧化钠溶液,除了发生中和反(3)H、O(或氢原子、氧原子)H2应,还生成了BaSO。沉淀(生成沉淀的过程放热),因此会影18.ADA项,由题图可知,进程I反应物的总能量比生成物的响中和热的测定,D项错误。总能量高,为放热反应,正确;B项,从Ⅱ中可看出S十X→P29.A根据盖斯定律,由①×3+②X3一③×2可得反应④:十X,X为催化剂,只改变反应的速率,对产率没有影响,错误;C项,从Ⅱ和Ⅲ可看出,进程Ⅱ的活化能比进程Ⅲ的小,2所以生成P的速率:Ⅱ>Ⅲ,错误;D项,由题图可知,反应所则△H,=3(△H,十△H2-3AHg),A项正确。得产物为P·Z,则Z没有催化作用,正确。10B混合时浓硫酸在被稀释的过程中放热;浓、稀硫酸在与19.CA项,烯烃的加氢反应是放热反应,△H1<0,△H2<0,Ba(OH)2反应时还会形成BaSO沉淀,Ba+、SO之间形错误;B项,根据盖斯定律可知,△H1十△H2≠△H,,错误;C成化学键的过程中也会放出热量。因放热反应的△H取负项,环己烯比1,3一环己二烯稳定,加氢反应放出的热量较值,故△H1<△H2<△H。少,故△H:>△H2,苯比1,3一环己二烯稳定,苯与H2反应比11.A△H2是1molC不完全燃烧反应的焓变,△H,是1mol1,3一环己二烯与H2反应放出的热量多,故△H3>△H2,正C完全燃烧反应的焓变,放热焓变为负,故△H:>△H,A确;D项,根据盖斯定律可知,△H2十△H,=△H,,错误。项错误;由图知,太阳能提供能量实现CO2和H2反应生成CO和H2O,B项正确;(③-②)×2即得2C0(g)十O2(g)20.解析:题给反应存在关系:反应④=3(反应①+反应②)①一2CO2(g)△H=2(△H一△H2),C项正确;+②反应③,根据盖斯定律,△H,=号(aH,十△H,)-△H,③得:H2(g)+CO2(g)=CO(g)+H2O(g)△H=2△H,十△H,一△H,D项正确3×(-1036k灯·mo1+94k灯·molr)-(-484以:mol-1)=+170kJ·mol1。12.D从图中可知1molA(g)的能量低于1molB(g)和2mol答案:+170D(g)的总能量,不能比较1molA(g)和1molB(g)的能量21.解析:H2的燃烧热是指1molH2完全燃烧生成H2O(1)时大小,A错误;从图中第二步反应前后能量变化可知,反应所放出的热量。1gH2燃烧生成H2O(g)放热121kJ,则对物总能量低于生成物总能量,B(g)三C(g)十D(g)为吸热反应,△H>0,故△H=(E3一E4)kJ·mol-1,B错误;从图应的热化学方程式为反应①:H,(g)十702(g)一H,0(g)中可知,A转化为C和D为吸热反应,断裂1molA(g)化学△H1=-242kJ·mol-1,反应②:H2O(1)一H2(g)键吸收的热量大于形成1molC(g)和3molD(g)化学键所△H2=+44kJ·mol-1,根据盖斯定律,反应①一反应②得放出的热量,C错误;E
听写21水的净化2.(1)2个氧原子1.(1)KMnO4加热K,MnO,+MnO2十O:一个二氧化碳分子中含有2个氧原子(2)2个钠离子MnO2(2)KC1O3KCI+O2加热一个镁离子带2个单位正电荷(3)H2O2Mn02,H0+O:(3)2个氧分子2.沉淀过滤吸附蒸馏吸附物理一个氧分子中含有2个氧原子3.肥皂水煮沸蒸馏听写24化合价听写22水的组成1.KMnOK2 MnOMnO2 H2 O21.(1)氢气十氧气点燃水KCIO3 KCI MgCl2MgO CuO点燃H,0Mg(OH)2 Ba(NO3)2 Na2 SOH2+OCaCO3(2)水通电氢气十氧气2.-2-1+4+2-1+2+4H,0通电H,+0:+6-3+5(3)过氧化氢二氧化锰,水十氧气听写25有关化学式的计算MnO21.Na+Mg2+.2A13+3S2-Cl 5CaH2 O2H20+022.淡蓝水雾水Cu+OH-SO NO3 NH 10H2O3.1:2氢元素氧元素2.(1)12×2+1×6+16×1=464.一种纯净物多种纯净物两种(2)(12×2):(1×6):(16×1)=12:3:8氧化合物1X6×100%=13.0%(3)46听写23化学式听写26质量守恒定律1.02 N2 He H2 P S C Fe Hg1,(1)P+0,点sP,0,HgO P2OsSO2 CO2 Fes OH2O(2)S十0,点燃s0,化学九年级上·RJ·河南45=。g=。===▣■。==。■。”a■s■▣。0s。
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第三套试题答案听力1~5 CBBCA 6~10 BCACB 11~15 ACABC 16~20 AACBA阅读理解本文介绍了四名学者在英语学上遇到的困难。2l.C根据第l、2个方框内容可知,Denver和Maria Luisa在理解英语语法方面有困难。22.D根据第3个方框最后两句可知,Wang Ling的英语发音不好,别人很难听懂。23.B根据最后一个方框内容可知,Yosi掌握的英语单词太少,建议每天记5个单词。夕本文讲述了四个沉着冷静的冲浪者救起了溺水的两兄弟的故事。24.B根据第1段第1、2句可知,两兄弟差点被淹死。25.A根据第2段第2句可知,Narayan Weibel等四人那时正在冲浪。26.D根据第5段第1句可知,Weibel努力让那两兄弟镇定下来。27.C通读全文可知,这四个冲浪者勇敢、坚定。本文主要介绍了多元文化的重要性。28.B根据第3段第1句可知,接受多元文化是相互理解的第一步。29.A根据第4段第4句可知,如果要欣赏不同的文化,理解是非常重要的。30.C根据最后一段倒数第2句可知,孩子理解多元文化后可以更好地和他人交流。31.D通读全文可知,本文主要介绍了多元文化的重要性。D研究人员运用医学扫描仪为古信制作3D影像,从而在不拆封的情况下就可以读数百年前的信。32.B根据第1段可知,研究人员利用新技术可以读未启封的古信。33.C根据第3段倒数第2句可知,利用医学扫描仪可以形成未启封的古信的3D影像。34.A根据第4段第1句可知,因为信未被展开,在3D影像中,信里的字重叠着,看起来就是一团糟。35.D根据最后一段最后一句Dambrogio的话可知,还有其他许多未启封的古信等着进一步的研究,可以推断Dambrogio接下来将继续研究其他未启封的古信补全短文36~40 EFCDB完形填空圣诞节那天,作者得知女儿用自己买礼物的钱给一个陌生女孩买了玩具娃娃后,作者内心感受到从未有过的富足感。41.C作者是四个孩子的单亲妈妈,做着低收入的工作。A2.B根据上文的alow-paid job可知,作者的钱总是很少。43.D上文说作者他们有自己的房子,桌上有食物,所以这里说的是身上有衣服穿。44.A根据下文出现的driving可知,这里指开车去市区看圣诞灯,然后在外面吃一顿饭。45.C46.B但是对于孩子们来说,最大的兴奋还是去市场上购物。安·9·【22新教材老高考.DY·英语·参考答案-WYB一必修第三册一QG)
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参考答案及解析化学(1)C4Ho的结构简式可能为CH3CH2CH2CH3(正(3)根据题意Mg(OH)2可以将SO2转化为MgSO4,丁烷)、CH(CH)3(异丁烷);A通过裂解反应能获说明该过程中需要氧气参与,化学方程式为得乙烯。2Mg(OH),+2S0,+0,-2MgSO+2H2 O.(2)B的结构简式为CH2一CH2、D的结构简式(4)因为SO与水反应生成硫酸,致使其溶解度非为CH,CHO。常大,所以装置A先检验SO3,盛放的试剂为BaC2(3)反应1为加成反应,原子利用率100%;反应溶液,现象为装置A的BaCl2溶液中生成白色沉淀;为氧化反应:2CH,CH,OH+0,但化前2CH,CH0SO3溶于水后溶液呈强酸性,还可减小SO2的溶解△度,用装置B检验SO2,盛放的试剂为品红溶液,现2HO,不符合题意;反应ⅲ为氧化反应:象为装置B中的品红溶液褪为无色;装置C的作用2CH,CH0+O,催化剂2CH,CO0H,原子利用率△为吸收有毒气体,防止污染空气。100%;反应V为酯化反应,不符合题意。(5)Na2S,O具有较强的还原性,在溶液中易被Cl2(4)①仪器a的名称为球形干燥管。氧化成SO,1 mol Na2S,O被氧化为SO星失去②反应V为酯化反应,其化学方程式为CH COOH+8mol电子,1 mol Cl.2被还原为C-得到2mol电CH,CH,OH浓疏酸CH,COOCH,CH,+H,O。子,根据得失电子守恒、电荷守恒以及原子守恒可得△反应的离子方程式为S,O+4C2+5H20③酯的密度比水小且不溶于水,有香味,故实验结束2SO+8C1-+10H+。后,取下右侧试管振荡并静置,观察到的现象有溶液19.(14分)分层,上层为油状液体。(1)放热(1分)18.(14分)(2)①5~10(2分)开始时,反应放热,温度升高,(1)二者同主族,最外层电子数相同,因此化学性质反应速率逐渐加快,后来反应物浓度降低,反应速率相似,原子半径不同,得失电子能力不同,因此化学逐渐减慢(2分,答案合理即可)性质不同(2分,答案合理即可)②60%(2分)13%(2分)(2)KFSEK一→K+[S]2K+(2分)③bd(2分)(3)2Mg(OH)2+2SO2+O2—2MgSO4+2H,O(2分)(3)正极(1分)2H2+2NO—N2+2H2O(2分)(4)BaC2溶液(2分)品红溶液(2分)溶液褪为【解析】(1)由图1可知,生成物总能量低于反应物无色(1分,答案合理即可)吸收有毒气体,防污染总能量,故该反应为放热反应。(1分,答案合理即可)(2)①由表可知,在相同时间段内,5~10min内消耗(5)S2O号+4C12+5H2O—2SO}+8C1+10H的CH最多,故该时间段内均反应速率最大,其(2分)原因是开始时,反应放热,温度升高,反应速率逐渐【解析】(1)硫与硒同主族,最外层电子数相同,因此加快,后来反应物浓度降低,反应速率逐渐减慢。化学性质相似,但硫与硒原子半径不同,得失电子能②该条件下反应达到衡时,n(CH4)共减少力不同,因此化学性质不同。0.60mol,则消耗n(NO2)=1.20mol,NO2的转化(2)硫化钾是离子化合物,用电子式表示K,S的形成过程为KFS+xK一→K+[S]2K+。率为,2m0×100%=60%;衡时容器中含有2 mol·3·
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己知:气体B能使湿润的红色石蕊试纸变蓝(1)气体B的结构式▲;化合物X的组成元素▲。(2)写出溶液A→沉淀D反应的离子方程式▲(3)写出化合物X与足量NaOH反应的化学方程式▲(4)将沉淀C溶于稀硫酸中,请设计实验方案检验所得溶液中的金属阳离子▲29.(12分)不同浓度的硫酸与锌反应时,硫酸可以被还原为$02,也可被还原为氢气。某校研究性学小组拟设计实验验证这一事实,并进行数据测定和相关计算。橡胶管化液请回答:(1)橡胶管的作用是什么?▲(2)按图组装完装置后,在加药品前欲检查装置的气密性,应如何操作?▲(3)写出圆底烧瓶中可能发生的化学反应方程式▲■(4)若烧瓶中投入ag锌且完全反应,氢氧化钠溶液洗气瓶增重bg,量气管中收集到VmL气体(标准状况),请用一个代数式表示出a,b,V之间的关系▲。(5)反应结束后,为了准确测量气体体积,读数时视线应与液面最低处相外,若量气管右侧液面高于左侧液面,则的数值▲一(填偏大、“偏小或无影响)。n(SO2))30.(共8分)完成下列问题(1)已知20℃下,饱和食盐水的质量分数为26.5%,密度为1.17gL,则该饱和食盐水的物质的量浓度为▲mol·L(2)向27.2g由Fe和F2O3组成的固体混合物加入2L一定浓度的稀硫酸后固体恰好溶解,可收集到标准状况下气体2.24L,再向反应后的溶液中滴入KSCN溶液,无明显现象。(忽略反应前后溶液的体积变化),反应后溶液中FeSO4的物质的量浓度为▲(3)100mL0.200molL-1CuS04溶液与1.95g锌粉在量热计中充分反应。已知:反应Zn(s)十CuSO4(aq)=ZnSO4(aq十Cu(s)的△H=-209 kJ.mol-l,反应前后,溶液的比热容均近似为4.18Jg1.℃-1、溶液的密度均近似为1.00gc-3,忽略溶液体积、质量变化和金属吸收的热量。实验测得反应前温度为201℃,请计算反应后测得的最高温度为▲℃。命题:奉化中学糜帅宝审题:宁波中学张栋高一化学试题第6页共6页
第10章有机化学基础学生月书知识点二有机物的表示方法及命名型备知识。。。基础知识夯实教材知识整合。舅1.有机化合物常用的表示方法有机物结构式结构简式键线式名称将支链作为取代基,写在“某烯”或HHH写名称一“某炔”的前面,并用阿拉伯数字标明2-甲基CH:CH2 C-CH2碳碳双键或碳碳三键的位置1-丁烯HH HCHCHH4.苯的同系物的命名HHHCH CHCH或(1)惯命名法OH2-丙醇H-COH如《CH称为甲苯,-C2HgH OH HCH,CH(OH)CH称为乙苯,二甲苯有三种同分异构体,其名称2.烷烃的命名分别为:邻二甲苯、间二甲苯、对二甲苯。(1)惯命名法(2)系统命名法将苯环上的6个碳原子编号,如以二甲苯碳原子十个及以下依次用甲,乙、丙、丁、戊己庚辛壬癸表示十个以上一用中文数字表示为例,以某个甲基所在的碳原子的位置为1相同时一用“正”“异”“新”来区别号,选取最小位次号给另一甲基编号,则邻二(2)系统命名法甲苯也可叫做1,2-二甲苯,间二甲苯叫做选主链称某烷→编号位定支链→1,3-二甲苯,对二甲苯叫做1,4-二甲苯。5.烃的含氧衍生物的命名取代基写在前标位置短线连(1)醇、醛、羧酸的命名不同基简到繁→相同基合并算将含有官能团(一OH、一CHO、一COOH)的最选主链另外,常用甲、乙、丙、丁…表示主链碳长碳链作为主链,称为“某醇”“某醛”或“某酸'原子数,用一、二、三、四…表示相同取代基从距离官能团最近的一端对主链上的碳原子编号位的数目,用1、2、3、4…表示取代基所在的碳进行编号将支链作为取代基,写在“某醇”“某醛”或“某原子位次。写名称酸”的前面,用阿拉伯数字标明官能团的位置3.烯烃和炔烃的命名(2)酯的命名将含有碳碳双键或碳碳三键的最长选主链合成酯时需要羧酸和醇发生酯化反应,命碳链作为主链,称为“某烯”或“某炔”名酯时“先读酸的名称,再读醇的名称,后将从距离碳碳双键或碳碳三键最近的‘醇’改‘酯’即可”。如甲酸与乙醇形成的酯名编号位一一端开始对主链上的碳原子进行编称为甲酸乙酯。号定位243
pair of hands brings milregret Elsie,age te reporer but they make herst is never casy.In orderbetter learer.once madea cake thatcme oulikebig biscuits.I was upscpend long hours watchingbut realize hadn'td the bok propelyNwyread thebokicperformers hold puppetsAlexandra Eidens from should be open tomistakes behey use both hands whilecuse leaming from them cn helpsbelieveinand face difficulties bravely.Try talking aboutne of our mistakes with Whether the experience ishappened.Eidens also suggests writing down our mistakes.She believes it gives achance of way for usto learnfrom our mistakes.w puppet show.()39.What does a person with a growth mindset do after making a mistake?A.He refuses to accept the mistakeB.He tries to learn from his mistake.C.He regrets what he has done.:人与短文意思最符合的)40.What does Elsie use her story to do?A.To show that it's quite difficult to make a cakee left home.He wantedB.To show that doing things to the end isn't easy.job and had to beg forC.To show that mistakes can make one a better learner)41.In the last paragraph,Alexandra Eidenshe was still looking forA.explains why we should believe in ourselveshe put up a big photoB.shares some methods of dealing with our worries“1 still love you,myC.introduces some ways to helppeople learn from mistakes)42.What does the underlined word "it"in the last paragraph refer to?e on the photo was fa-A.Writing down our mistakes.he words,“I still loveB.Talking about our feelings.ack and see his dad.C.Trying to be creative.e door.Nobody an-)43.What's the best title for the passage?bedroom.His fatherA.Get lessons from mistakesback home!"The fa-B.Try to avoid mistakesasked,“Why is theC.The fear of making mistakes“The door has never(c)请阅读下面短文,根据语篇内容,从方框内所给的选项中选出能填入空白处的最佳ft home.He wasn't选项,使短文意思通顺。选项中有一项为多余项。died.His father wasShadow puppetry,or pi ying i,is an ancient form of storytell-saw a photo with aing and entertainment in China.44 It has been an impoized(认出)his fa-tant part of Chinese culture.found the door was45 It has a history of over 2,000 years.When Emperor Wu'd the son held eachfavorite wife died of illness,the emperor became very sad.One of hid never been closedministers came up with an idea to cheer the emperor up.That night,he cut a puppet(in the shape of the emperor's wife and put on a performance.It was so wonder-ful that the emperor felt that he saw the spirit of his love.Shadow puppet shows be-came very popular during the Song Dynasty.46It's said that the puppets were first cut out of paper,but later made of coloredGZX E SHX(三)】【山西省2022~2023学年度九年级阶段评估(C),英语第5页(共8页】【R一PGZX E SHX(三】
选项实验操作及现象结论向溶有SO2的BaCl2溶液中通入气体X,出BX一定具有强氧化性现白色沉淀C向溴水中加入苯,振荡后静置,水层颜色变浅溴与苯发生了加成反应将银和AgNO3溶液与铜和Na2SO4溶液组D成原电池,连通后银表面有银白色金属沉积,Cu的金属性比Ag强铜电极附近溶液逐渐变蓝1l.砷化镓(GaAs)是一种立方晶系的晶体,其晶胞结构如图甲所示。将Mn参杂到晶体中得到稀磁性半导体材料,其晶胞结构如图乙所示。砷化镓的晶胞参数为xpm,设NA为阿伏加德罗常数的值。下列说法错误的是-MnMn掺杂OMn○GaMn●AsA.1 mol GaAs中配位键的数目是NAB.GaAs晶体中,Ga和As的最近距离是y4x pmC.元素的电负性:Ga 29.What's the main idea of the third paragraph?A.The result of the new study.B.The subject of the new study.C.The importance of the new study.D.The research process of the new study.30.What can we infer from the last paragraph?A.Everyone should take aerobic exercise.B.Aerobic exercise is the best way to keep healthy.C.Aerobic exercise is most suitable for old people.D.Taking aerobic exercise is useful to reverse age-related loss.31.What is included in Aerobic exercise?A.Slow walking.B.Biking.C.Weightlifting.D.Throwing.DA group of researchers has developed a new material which is as soft as cotton but asstrong as Kevlar and as conductive as many metals.It can be worn and washed like normalclothing and could eventually turn athletic clothes into smart "wearables".The so-called“carbon nanotube(纳米管)threads'”work similarly to the wires in an EKG(monitoring device,which measures heart rhythms to detect heart conditions.Butinstead of having to be patched()onto the skin,they can be sewn into a T-shirt and wornlike normal athletic clothes,according to a new study from researches at a Rice UniversityBrown School of Engineering lab.And unlike wires,they say the threads can comfortablymove with the wearer,and be washed,stretched and worn repeatedly without breaking down.The Rice University lab first developed carbon nanotube fiber in 2013,and has studied itsuse in medical operations,such as in cochlear()implants for hearing loss and to repairdamaged hearts.But at the time,the original filaments()were too thin to be used by astandard sewing machine.For this latest one,researchers worked with a rope-maker to weave the filaments togetherinto a material similar to regular sewing thread that could be sewn into athletic clothes.Theresulting“smart”shirt provides“soft,wearable,dry sensors for continuous”EKGmonitoring,the study states.Though likely a long way off from going into production for consumers,the materialcould eventually help replace heavy EKG monitors in medical settings and heart ratemonitoring watches.With some changes,clothes with these fibers could eventually be able totrack other vital signs,according to the researchers."You just don't find soft,flexible,thread-like materials that are comfortable to thetouch,that you can work with,that you can build a bridge out of it or you can build a powerline out of it,but you can also run it through a sewing machine,"said Oliver Dewy,a memberof the research team."Nothing else behaves like this.32.What's the feature of the new material?A.It's soft but not strong enough.B.It's flexible but not comfortable.C.It can conduct electricity easily.D.It's too thin to be used by a standard sewing machine.33.What was the carbon nanotube fiber used for initially?A.Measuring heart rhythms.B.Being sewn into athletic clothes.C.Helping patients with hearing loss.D.Improving exercise capacity of athletes.34.What's Oliver Dewy's attitude to this new material?A.Favourable.B.Doubtful.C.Unclear.D.Critical.【高三英语第5页(共8页)】23206C .It was March.the end of the Alaskan 48.A long time from Australia had brought meoYukon.Alnska.My hosu log cabin(was the starting point for my 10-day4 Haringejoyed many year of exploring the Alaskan wildemess,the couple,Wayne and Scarlett,chose to50 adventurers to experience the same lifestyle..51a team of sled is not as easy as it appears.I'd imagined it would be a very relaxintexperience,in which I would ride along with a 52 expression while gazing at the passinglandacape.In reality it tumned out much53.You must predict where your dogs would go andhow the surface ahead might change.During the journey,we stayed in a different place everynight,and54 our dog teams.Thesc dogs can 55 our safety and help us escapedangerous situations,so their health and well-being always rank first.After we 56,I startedcollecting snow for water and cutting firewood.Luckily,I didn't end up in the fangs (of 57.My guide 58 me sometime later.Our dog teams,in the excitement of being59,headed straight for each other.There's nevera60 moment.41..A.frozenB.closedC.blockedD.melted42.A.hostB.friendC.guideD.teammate43.A.escapingB.exploringC.runningD.hiking44.A.normalB.sameC.oppositeD.right45.A.argumentsB.promisesC.suggestionsD.conversations46.A.lostB.beatenC.stolenD.hurt47.A.rarelyB.usuallyC.slowlyD.narrowly48.A.springB.summerC.autumnD.winter49.A.researchB.surveyC.adventureD.experiment50.A.persuadeB helpC.urgeD.order5l、A.PushingB.DrivingC.PullingD.Dragging52.A.pleasantB.nervousC.seriousD.scary53.A.happierB.easierC.smootherD.tougher54.A.cared forB.paid forC.looked forD.waited for55.A.forgetB.preventC.guaranteeD.overlook56.A.wokeB.sleptC.discussedD.settled57.A.dogsB.tigersC.bearsD.wolves58.A.missedB.lostC.foundD.called59.A.reunitedB.taughtC.separatedD.punished60.A.fascinatingB.boringC.excitingD.satisfying第Ⅱ卷注意:将答案写在答题卡上。写在本试卷上无效。第三部分语言知识运用第二节(共10小题:每小题1.5分,满分15分)阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。Wang Chenxue now works for a nonprofit organization 61(call)Enjoy Volunteering (EV).The organization aims at financing college students to organize summer camps for students in ruralareas to cultivate young people with social responsibility.In the past two years,the 25-year-old,along with other 10 team members,62 (volunteer)at a rural elementary school through an EVprogram in Dazhaizi village of Qinghai province.英语试卷第7页(共8页) 2C0,(g),此反应的衡常数约为1.17+2CO2(g)△H<0。已知容器内起始压强为pkPa,一段时间后达到衡测得容器内压强为D.温度为T1时,衡后向恒容容器中再充入0.10mol0.8pkPa。下列说法正确的是NO,再次达到衡时,NO的百分含量增大A.向容器内再充入1molC0和1 mol NO,该反应9.已知某化学反应的衡常数表达式为K=的衡常数不变c(CO2)·c(H2),在不同的温度下该反应的衡常B.向容器内充入He,使容器内压强增大,可提高该c(CO)·c(H2O)反应的速率数如下表。下列有关叙述正确的是C.若用C18O参加反应,一段时间后18O可能存在于T/℃70080083010001200CO、NO、CO2中K1.671.111.000.600.38D.衡时,NO的转化率为80%14.已知[Co(H20)6]+呈粉红色,[CoC14]2-呈蓝色,c(C02)c(H2O)A.若衡浓度符合下列关系式:3c(CO=5c(H)'[ZnCl4]2-为无色。现将CoCl2溶于水,加入浓盐酸则此时的温度为1000℃后,溶液由粉红色变为蓝色,存在以下衡:B.上述反应的逆反应是放热反应[Co(H2O)6]2++4C1→[CoC14]2-+6H20△H用该溶液做实验,溶液的颜色变化如下:C.该反应的化学方程式为CO2(g)十H2(g)CO(g)+H2O(g)①置于冰水浴中蓝D.若在一定容积的密闭容器中通入CO2和H2各分为3份②加水稀释粉红色溶液1mol,5min后温度升高到830℃,此时测得C0③加少量zaCL,固体为0.4mol时,该反应达到衡状态以下结论和解释正确的是10.将NO2装人带活塞的密闭容器中,当反应2NO2(g)A.等物质的量的[Co(H2O)6]2+和[CoCl4]2-中。键一N2O4(g)达到衡后,改变下列一个条件,其中数之比为3:2叙述错误的是B.由实验①可推知△H D篇主题语境:人与社会一科学与技术本文是议论文。修理权运动给技术公司施加压力,迫使他们让电子产品变得方便修理,这样也可以减少电子产品垃圾对环境的污染。32.A。推断。根据第二段中的getting ahead of Right to Repair laws that are very likely on the way和最后一段中的a desire to get ahead of upcoming laws可知,在美国修理权法律可能很快会被通过。33.B。理解具体信息。根据第三段中的This is the first time we've seen a major company.Microsoftsaid we're gonna do it可知,微软公司之前向来反对修理权运动,但是这次微软公司对电子设备可修理性态度的转变让Wiens感到惊讶。34.C。理解具体信息。根据第四段中的Advocates believe this is going to help solve the pressingproblem of e-waste.which is a major source of pollution可知,修理权运动的目的之一是保护环境,因为电子产品的快速更迭会造成环境污染。35.D。理解具体信息。根据倒数第二段的内容可知,游说团体As You Sow通过提交股东决议迫使微软公司对修理权法案作出回应。【补充解释】get ahead of sth(para.2):走在…前面第二节主题语境:人与自我一生活与学本文是说明文。文章介绍了制作思维导图的具体步骤及其好处。36.F。设空处与上文构成并列关系,F项中的paper和main topic与下文中的supporting ideas和howthose ideas fit together构成同现关系,且F项中的you are planning to write a paper与上文中的Youhave to make a speech构成并列关系。37.E。设空处承上启下。E项中的two situations指代上文中准备演讲稿和论文时会遇到的两种情况, W:Oh,I'm sorry,but it isn't working;it's out of order.Is it really important?M:Well,you see,I have to call my secretary about tomorrow's work plan,so I'm afraid I have to go now.Thank you foryour dinner.W:You're welcome.Good night then.M:Good night.2023届高考模拟金卷(四)·英语参考答案第5页(共6页)听第9段材料,回答第15至17题。Text 9W:How is transport in Britain?M:Well,we've got the railways that connect all our big towns.There are over 13,000 miles of track in Britain.Railtransport provides a very important service.W:What about road transport?Are your roads good?M:Yes,they are on the whole.We've got about a quarter of a million miles of roads,and multi-lane motorways areappearing everywhere.We should have over a thousand miles of motorways soon.W:Is there a good air service inside Britain?M:Well,yes.But it is not as important as our rail and road transport.W:What about travel by sea?M:As an island people and a trading nation,Britain's sea traveling traditions have always been great.We have the biggestmerchant navy in the world,carrying a third of the world's passengers,you know.W:But I suppose today sea travel has become less important,hasn't it?M:It has.But some people still prefer traveling by sea to any other form of transport.听第10段材料,回答第18至20题。Text 10M:Good morning,everyone.I'm Jim Martin from Happy Community.I'm happy to be here to talk about youngvolunteers.Here are some suggestions for you.You need to think about your interests first.What kinds of things do you get excited about?Do you love to teach kids,work outdoors,or help people in need?Your interests may help you do volunteer activities better.Then consider your skills.Are you good at something like sports or computers?Most volunteer groups are looking forpeople with skills and abilities.Try to be active in your thinking.With all the choices,you may find a volunteer chance that has never happened toyou.Your effort could lead to something surprising.Do research.You'll be surprised at the numbers of volunteer groups out there.And you can start by asking family andfriends about the ones they know,or do some research on the Internet.Then follow up by calling or writing to the groupsdirectly.Oh,here are two more suggestions for you.Don't be angry if you don't get the job you want right away.Your firstvolunteer job may be less than perfect but it can still be a good learning experience.Don't try to do more work than you can.If you can't manage the work you volunteer to do,it can be difficult for yourgroup and make you feel uncomfortable.If you want to get more information about young volunteers,you can visit our website:.youngvolunteers.comThank you for listening!Good luck!2023届高考模拟金卷(四)·英语参考答案第6页(共6页) 形:中业有Dear editor,nwit五少u。以必ut my opihins4以outtreditionsl Chinest culture.I think t nete necesyfr w bo pntece and niherit it.Here are fome reason3.ny,心one时ea(ent(t2a6an1hhey&h6 e dione Chnee c6e心e为n6 ty te devementou Count and t cen prou'se pirted mtrvetsn力Chinese conor.eno5,t6eem心y(slockins evenis.tyonsh whick we cos leora fone uschd thisto made onr cuntry devebp me jaiily.Loe ine lonti力rte r dacs hty,人6it mey nele w ibogser and lencht our sroud.I hope Chiese svernment and ditizon,jo then75ho时n6ec6onn人hene iradio(C6,eacolere,wehn(ma以econ公.6 ms and ef6名carcy it frward%J,LHua - )周测卷域的是高三第一轮复周测卷教学8.工业上用发烟HCIO,把潮湿的CrC1氧化为棕色的烟[CrO,(C1O,)]来除去Cr+,HCIO,中部分札记氯元素转化为最低价态。下列说法不正确的是A.CrO2(ClO)2中Cr元素显+6价B.HC1O,属于强酸,该反应也生成了一种强酸C.该反应每生成1mol氧化产物,便有0.5 mol HCIO,被还原D.该反应的离子方程式为19C1O,+8Cr3++4H,O一8CrO,(C1O,)2+3C1+8H【解题分析】CO(CO)2中O为一2价,C1为+7价,则Cr元素显十6价,A项正确;C1元素的非金属性较强,HC1O,属于强酸,生成的盐酸也属于强酸,B项正确;该反应每生成1mol氧化产物,则转移3mol电子,HC1O,被还原的物质的量为3g0=0.375mol,C项不正确;该反应的离子方程式为19C10,十8C2++4H,0一8C0,(C10,)2十3C1+8H,D项正确【答案】09.二氯化二硫(S2C2)易与水反应:2S2C12+2H2O一4HC1+SO2+3SV,其中SC2中硫元素显十1价,氯元素显一1价。下列对该反应的说法正确的是A.S,C2既作氧化剂又作还原剂的计B.氧化产物与还原产物的物质的量之比为3:1C.每生成1 mol SO2转移3mol电子D.H2O作还原剂程式【解题分析】根据反应的化学方程式,可知S元素从十1价部分升高到十4价,部分降低到0价,故SC既作氧化剂又作还原剂,A项正确,D项错误;氧化产物为SO2,还原产物是S,两者的物质的量之比为1:3,B项错误;每生成1 mol SO2转移电子的物质的量是3mol,C项正确。应【答案】AC10.把图2中的物质补充到图1中,可得到一个完整的氧化还原反应的离子方程式(未配),下列对该氧化还原反应的说法不正确的是元Mn2..→H+MnO+IO+IO+H2O图1图2A.IO,作氧化剂,具有氧化性B.氧化性:MnO4>IO4C.氧化剂和还原剂的物质的量之比为2:5D.若有2 mol Mn2+参加反应,则转移10mol电子【解题分析】结合图1可知Mn中为反应物,故图2中的MnO,为生成物,因此Mm+作还原剂,被氧化,故图2中的IO,作氧化剂,IO为还原产物,因此该反应的离子方程式为2Mm++5IO,十3HO=2MnO,+5IO+6H由上述分析可知,A项正确,C项错误;同一个反应中,氧化剂的氧化性大于氧化产物的氧化性,故氧化性:IO>MnO,,B项错误;Mm+~MnO,,转移5e,若有2 mol Mn2+参加反应,则转移l0mole,D项正确。【答案】BC第Ⅱ卷(非选择题共52分)三、非选择题:本题共3小题,共52分。11.(17分)钒被广泛应用于冶金、航天、化工和电池等行业,如在硫酸工业中需V,O作催化剂。回答下列问题:(1)催化剂V2O可通过灼烧NH4VO3制得,写出该反应的化学方程式:(2)将废钒催化剂(主要成分为VO)与稀硫酸、亚硫酸钾溶液混合,充分反应,所得溶液(含【24·G3ZCJ(新高考)·化学-R-必考-QGA-Y】


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