首页 金卷押题猜题答案
  • 2024年衡水金卷先享题·高三一轮复习夯基卷(湖南专版)生物学(一)1答案

    D.利用蛋白质工程可以在大肠杆菌细胞中得到人的干扰素13.关于基因工程中载体的叙述,错误的是()A.载体与目的基因结合的过程发生在细胞内B.载体须具有一个至多个限制酶切割位点,以便与外源基因连接C.基因工程常用的载体有质粒、噬菌体和动植物病毒D.载体须具有标记基因,以便鉴定和选择重组的DNA分子14.下列关于生物技术或工程中常见的几种酶的叙述,正确的是()A.限制性内切核酸酶只能从原核生物中分离纯化出来B.E.coli DNA连接酶的作用是将具有互补黏性末端的2个DNA片段连接在一起C.Taq酶是PCR仪扩增DNA分子时常用的一种耐高温的DNA连接酶D.RNA聚合酶可以与启动子结合,驱动翻译过程,产生蛋白质15.为提高转基因抗虫棉的抗虫持久性,可采取如下措施:①基因策略:包括提高杀虫基因的表达量、向棉花中转入多种杀虫基因等。例如,早期种植的抗虫棉只转入了一种Bt毒蛋白基因,抗虫机制比较单一:现经常将两种或两种以上Bt毒蛋白基因时转入棉花。②田间策略:主要是为棉铃虫提供庇护所。例如我国长江、黄河流域棉区多采用将转基因抗虫棉与高粱和玉米等其他棉铃虫寄主作物混作的方式,为棉铃虫提供天然的庇护所。关于上述策略,下列叙述错误的是()A,转入多种Bt毒蛋白基因能提高抗虫持久性,是因为棉铃虫基因突变频率低且不定向B.转基因棉田周围种植非抗虫棉,可降低棉铃虫抗性基因的突变率C.为棉铃虫提供庇护所,可使敏感型棉铃虫在种群中维持一定比例D.为棉铃虫提供庇护所,可使棉铃虫种群抗性基因频率增速放缓16.PCR是一种DNA体外复制技术,可以用来扩增目的基因。下列相关叙述正确的是()A.PCR需要DNA模板、脱氧核苷酸、引物、解旋酶及DNA聚合酶等B.当降温复性后,PCR的反应液中只会出现引物与模板链互补的情况C.可以利用PCR技术直接扩增mRNA,加快生产目的蛋白的速度D.PCR的缓冲液中一般要添加Mg+,以用于激活DNA聚合酶17.下列关于生物技术的安全性及伦理问题的观点,正确的是()A.应严格选择转基因植物的目的基因,避免产生对人类有害的物质B.当今社会的普遍观点是禁止克隆人的实验,反对治疗性克隆C.反对设计试管婴儿的原因之一是因为试管婴儿技术属于无性繁殖方式D.生物武器具有致病能力强、攻击范围狭窄等特点,应严格禁止18.人的血清白蛋白(HAS)在临床上需求量很大,通常从血液中提取,成本较高。如果将人的血清白蛋白基因导入奶牛细胞中,利用奶牛乳汁来生产血清白蛋白,能够极大地降低成本,且安全高效。下图是利用奶牛乳汁生产HAS的过程图(注:⑦代表受体母牛),下列叙述错误的是()①⊙Q⑤血清白蛋白基因卵母细胞⑤口处理荷斯坦分散-O胚胎。奶牛组织培养单细胞乳汁中提取,二y⊙②③血清白蛋白A.①进入③之前,必须构建基因表达载体,⑥进入⑦之前,必须取内细胞团做性别鉴定B.在⑥阶段移植的胚胎为桑葚胚或囊胚C.该过程综合利用了核移植、动物细胞培养和胚胎移植等工程技术D.血清蛋白基因只在牛的乳腺细胞中表达与特定的启动子有关3

  • 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

    2023年春期高一期末考试生物参考答案一、单项选择题(每小题2分,共60分)1--5 ADCAC 6--10 DADCC11-15AACCD16--20 BDACC 21--25 DCDAC26--30 BDDCB二、非选择题(共40分)31.(每空2分,共12分)(1)两株紫叶植株自交后代均为紫叶,紫叶性状可以遗传(2)①全为紫叶植株②全为绿叶植株(3)将F,植株自交得到F2,观察并统计F2的表现型及比例2中绿叶植株:紫叶植株=9:7F2中绿叶植株:紫叶植株=1:132.(除标注外每空1分,共8分)(1)蛋白质和DNADNA(2)T2噬菌体是病毒,须寄生在大肠杆菌中增殖(2分)(3)使吸附在细菌上的噬菌体与细菌分离沉淀物(4)培养时间过长,增殖形成的子代噬菌体从裂解的细菌体内释放出来(2分)33.(除标注外每空1分,共10分)(1)①②mRNA、tRNA、rRNA(2分)(2)核糖核苷酸、RNA聚合酶、ATP(2分。写出2项得1分)(3)从右向左相同(4)缺少氨基酸会使负载RNA转化为空载tRNA,空载RNA通过抑制DNA的转录和激活蛋白激酶抑制蛋白质合成(或抑制翻译过程),减少蛋白质的含量,抑制细胞的分裂(3分。答出“负载RNA转化为空载RNA”得1分,答出“抑制DNA转录”得1分,答出“激活蛋白激酶抑制蛋白质合成”得1分)34.(除标注外每空1分,共10分)(1)因为男性白细胞具有X、Y两种性染色体,而女性只有X一种性染色体(2分)(2)地理基因交流(3)一个种群中全部个体所含有的全部基因生态系统多样性(4)常染色体隐性遗传没有因为在这十年中,该种群的基因频率没有发生改变(2分)

  • 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

    O NH-NH12,E度1cg+g一CH8)+2H0(g)4H<0CHCOOH浓HNO,KMnO,/H+N2H·HzOVI(C H.O2)反应7g)+2A(g)CHOH(g)4H,<0浓H,SO,①CHOHC2HOH反应mCHg)+C0g=2C0g)+2H(g)4H>0NH2C4和居为原料制备甲醇的反应()的衡常数表达式K一CHOC40:O,根据反应【~Ⅲ,请写出此反应的热化学方程式:()-Nc(CO)·c(),若该反应在一绝热恒容密闭容器中进行,下列不能OHH.N说明反应已达到衡状态的是(填字母)。NOHa.(CHOH)=v(HO)点总压强不变NO2NH2c衡常数不变Fe、HCld音内器的值保特不变已知:(苯胺易被氧化)。(2)某实验室控制C0,和H2的初始投料比为1:2.2,在相同压强下,经过相同反(1)I→Ⅱ的反应类型为,V的名称为应时间测得如下实验数据:(②)反应①和反应②的顺序能否调换?说明理由:封15.372.74·(Cu/ZnO纳米棒,催化剂I)471.6412.0△(CuZa0纳米片,催化剂I)(3)已知M→X涉及两步反应,第一步是加成反应,第二步是消去反应,写出由M42.3·39.1→区的化学方程式:5435531K5435537水根据上述材料,请选择甲醇产率最大的条件:(④)I的结构简式为温度为553K,选择催化剂Ⅱ时,C02的转化率12.0%是不是该状态下的衡(⑤)化合物X与Ⅷ互为同系物,X的相对分子质量比Ⅷ大28,则满足下列条件的X转化率?(填“是”或“不是”),原因是的芳香族同分异构体有种,其中核磁共振氢谱有4组峰,且峰面积之比为6:2:1:1的结构简式为(任写一种)。(3)一定条件下,在装有催化剂的密闭容器中投入mol C02和3 mol H2,发生上①能够发生银镜反应线述反应N,同时有副反应C02(g)十H2(g)一C0(g)+H2O(g)△H>0发②能够发生水解反应生。达到衡时容器中CH,OH的物质的量为cmol,CO的物质的量为Ndmol。则此条件下CO2的转化率为NCHCH,下副反应的衡常数为】(列式表示,下同),此条件(6)根据上述信息,设计以乙醇、间二甲苯为原料合成的20,(15分)席夫碱化合物具有结构多样,性质稳定的特点,且具有良好的与金属离子配位的能力,因此是一类重要的荧光探针分子。一种合成含席夫碱结构的新型路线(无机试剂任选)。Z+荧光探针P1(化合物X)的流程如图所示。请回答下列问题:全国100所名校最新高考冲刺卷第1页(共8列)【23·(新高考)CC·化学(二)·GD0NG】通10所名校最新高考冲刺卷第8页(共8页)【23·(新高考)CCJ·化学(二)·G DONG】

  • 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

    ()V0碳基衬料(清性炭、清性焦,清碳虹维)也可以脱硫,脱硝。V,O,/做基材料肠统时,款制一定气体滨速和温度,烟气中O的存在对VO/碳基材料催化剂脱硫,脱确汤性的感南结果如图》所示,当O浓度过高时,去除率下降,其可能原因是(③)欢高戏能花剂是解决N口对大气污染间题的重要途后。400℃时,在分别装有催化剂的A和的四个盆想为L的刚性槽闭容器中,各究人物质的量均为n%l的O和C)生反应。通过测定容都内总压强随时间变化来探究催化剂对反应速率的影响,物散咖表,时间mm0102030OA容带内压眼/kP100.090.085,080,00,0B容游内压强/kP100.095.090.085.00,0①由表可以判断催化剂(填“A”或“B”)的效果更好。②下列说法能表明该反应已经达到衡状态的是(填标号)。A.2v (N:)=(NOM0叶00=tW2B混合气体的均相对分子质量不变/20+2002fbf2W2C.c(NO)c(CO)=1 1XD等器内气体的密度不得发生变化为?:9:③容器中CO的衡转化率为%。400℃付,用压强表示的衡常数K,=(kPal)。④汽车尾气中含有NO和CO,在排气管中使用催化剂可以提高污染物的转化,其原因是2N0t2C0尺Nz+220少g-/品s007202020+0十20058212425、82-038-6820=/6J2y020-h:0

  • 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

    3/310.推理是学化学的重要方法之一,下列推理正确的是日A,Fe能与CuSoa溶液反应,则Fe也能与ZnSO4反应B.Na、C的最外层电子数均为8,则最外层电子数为8的粒子都是离子C.向碳酸钠溶液中滴加无色酚酞试剂,溶液变成红色,说明碳酸钠溶液呈碱性HD.有机物一定含碳元素,则含碳元素的化合物一定是有机物1山.某同学对下列四个实验都分别设计了两种方案,其中两种方案均能达到实验目的的是实验实验目的量方案1方案2探究水的组成氢气在氧气中燃烧电解水B区别蒸馏水和硬水观察颜色滴入肥皂水除去H中的HC1气体通入饱和NaHCO,溶液通过加热的CuOD探究分子的运动氨水挥发使酚酞溶液变红压缩注射器中的气体12.甲、乙试管中各盛有10.0g水,向其中一支中加入3.0gKNO3固体,另一支中加入3.0gNaC1固体,按图1进行实验(KNO3和NaCl的溶解度曲线如图2),下列说法正确的是溶解度溶液甲乙天35.102高是降温,13.3一水晶体40℃0102030405060温度图1图2A,甲中加入的固体是KNO,B.0PC时,甲中溶液可能饱和,乙中溶液一定饱和C,KNO,中含有少量NaC杂质,可用冷却KNO,热饱和溶液的方法提纯一D。40℃时,若使图1中甲、乙试管内的溶液恰好变为相应饱和溶液,甲中加入对应的溶质质量大于乙中加入对应的溶质质量成方洁衣学员产强建空定员到的产对银为常米税组最市果)用人格动京斯站中货的日的出的序出欢的风的性出代九年级化学第3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

    -

  • 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

    容易得到的副产物有CO和CHO,其中相对较多的副产物为;上述合成甲醇的反应速率较慢,要使反应速率加快,主要降低下列变化中(填字母)的能量变化A.CO+OH→'CO+HOB.CO→'OCHC.OCH2→OCHD.'OCH→CHOH陕西师大附中2022一2023学年第二学期高一年级期终考试化学试题第11页共11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

    2022届高三年级第一学期期末调研考试英语试题参考答案第一部分听力(共20小题:每小题1.5分,满分30分)1-5 CABCB 6-10 CBCAC11-15 ABACC16-20 BABAB第二部分阅读(共两节,满分50分)第一节(共15小题:每小题2.5分,满分37.5分)21-23 ABD 24-27 BCCD28-31 BACB32-35 AACD第二节(共5小题;每小题2.5分,满分12.5分)36-40 FDCBG第三部分语言运用(共两节,满分30分)第一节(共15小题;每小题1分,满分15分)41-45 CBCAD 46-50 BABCD 51-55CABDD第二节(共10小题:每小题1.5分,满分15分)56.existence57.was distributed58.where59.disappear60another61.originally62.defensive/defens(c)e63.reads64.turning65.for第四部分写作(共两节,满分40分)第一节(满分15分)One possible versionDear fellow students,A campaign is being launched to beautify our city and create a comfortable environment.Westudents are expected to take an active part in it.We can start from the very little things around us,like picking up waste in the street,wipingout unwanted advertisements,observing traffic rules and so on.Besides,it's also a good idea forus to give out booklets to advocate civilized behavior.Every little bit matters.Let's work together to make our city more beautiful.The Students'Union第二节(满分25分)One possible version:Hearing our cries,Mr.Lim rushed to help.The moment he figured out the emergency,Mr.Lim quickly drove my father to the nearest hospital.My father was brought into surgery.Mr.Limpaid the medical bill and kept us company all night long,constantly comforting us.Luckily,theoperation turned out a success.While my father was in hospital,Mr.Lim often visited us withsome necessities.To relieve my mother's burden,he even drove us to school every dayFinally,my father recovered with piles of bills to pay.Again Mr.Lim came to our aid.Helent us some money and arranged for my father to work in his shop to get some earnings.Meanwhile,he financed the education for me and my siblings.Whenever my parents thanked himfor his help,he just simply said that our kindness deserved it.An old saying goes that a near

  • 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·化学名称:托盘天仪器主要用途使用方法及注意事项①称量前先调零点(1)注意活塞不得渗漏②腐蚀性药品或易潮(1)用于随时添(2)分离液体时,下层液体解药品应放于小烧加液体由下口放出,上层液体由(2)萃取、分液上口倒出注意杯内称量分液漏斗(3)使用前先验漏③左盘放物品,右盘可直接加热,加热时液体放砝码蒸发或浓缩体积不超过其容积的号,④精确度为0.1g蒸发皿溶液当有大量固体出现时停止名称:温度计加热①水银球不接触器壁(1)直形冷凝管一般用于②蒸馏时,水银球放在支注意蒸馏或分馏时冷凝管口处蒸馏时,用于冷(2)球形冷凝管通常用于③不能当玻璃棒使用凝蒸气A.球形冷凝管回流心小提示B.直形冷凝管(3)冷却水下口进、上口出化学仪器中3个“0”(1)一般选择能与杂质气(1)滴定管的“0”刻度在滴定管的上部除去气体中的体反应的试剂作吸收剂杂质,其中广口(2)装入液体量不宜超过(但不是最上端),在量取液体的体积时,液面不一定要在“0”刻度,但要在“0”刻度以下;滴瓶可换作大试容积的号洗气瓶管或锥形瓶定管读数时,装液或放液后,需等1~2min后(3)气体的流向为A进B出才能观察液面高度。(2)量杯、量筒、容量瓶没有“0”刻度。用于干燥或吸(1)注意干燥剂或吸收剂收某些气体,干(3)温度计的“0”刻度在温度计的中下的选择燥剂为粒状,常部。(2)一般为大口进气,小口球形干燥管用无水CaCl2出气4.常用的物质分离、提纯的仪器碱石灰仪器主要用途使用方法及注意事项心吵小提示(1)制作过滤器时,滤纸紧(1)向小口容器因为馏分容易因冷凝而留在球形容器贴漏斗内壁,用水润湿,注中转移液体意不得留有气泡中,不能到达锥形瓶,所以蒸馏(或分馏)时,(2)加滤纸后,漏斗(2)滤纸边缘低于漏斗边不能用球形冷凝管只能用直形冷凝管;球形可过滤液体缘,液面低于滤纸边缘冷凝管冷凝效率高,常用于冷凝回流(竖直放置〉300

  • 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

    期练题参考答案Michael Jordan:changed basketball with his graceful第3版2.Even if/though failing so many times,Zhang Hong第1版moves and jumps,find a way to win,learn from hisLANGUAGE LEARNINGnever gave up.THEME READINGfailures,accept failure,practise harder,never give up,语言知识学篇3.Members of the China women's volleyball team set aPART1[Self-check】share his success with othersgood example for teenagers.I.I.compete2.audience3.sweatPossible answers:Hard work,determination,strongLEXICAL CHUNKSPART34.host5.cheatwill,never giving up,etc.1.pretend to fall downL.1.isn't2.is there[Reflection】2.do his/her best to win4.didn'tIL.①n.大事②n.比赛项目3.does it略3.compete for one's country2.①n跑道②v追踪;跟踪5.didn't第2版4.bring honour and glory to her country3.①n.适合②n.健康II.1.made a big differenceREADING ACTIVITIES5.work out6.cut outIII.1.works out2.makes sense2.rather than driving a carActivity1略4.coming alongActivity 2 1.honour2.medals7.be positive about oneself3.made it3.cut sugar out of their diet5.Even if6.fall down4.be compared with walking3.lose heart4.moves and jumps8.add healthy foods to my mealsPART25.19966.give up语言知识应用篇9.come along10.make itI.1.injury2.strength7.failures2.for11.make sense12.even if/though1.which /that3.championships4.gracefulActivity 3 1-4 FFFT3.called4.parts13.make a difference14.rather thanActivity 4 1-5 CDAEB5.master6.failures6.As15.有时;偶尔16.comparewith /to...5.is known7.legendActivity 57.to jump8.had developedLang Ping:worked together as a team,brought honour17.set an example18.fall apart1.Michael didn't lose heart after losing the first game.9.quickly10.themand glory to her country,never lose heart19.lose heart20.give up

  • 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

    要生用人节名师导学·选择性考试第一轮总复·化学质量分数是(写出表达备钴的氧化物的重要原料。如图为二水式)。已知滴定反应方程式:合草酸钴(CoC2O4·2H2O)在空气中受CH,OHCH,OH热的质量变化曲线,曲线中300℃及以OH上所得固体均为钴氧化物。2HI18.HO168.按要求回答问题:450227012(1)将19.4gC02和水蒸气的混合气体,与C300℃,8.03g)足量的Na2O2反应,收集到标准状况下1503004506007509005.6L的气体,试确定混合气体的均相温度/℃对分子质量为,C02与水蒸气①通过计算确定C点剩余固体的化学成的物质的量之比为分为(填化学式)。试写出B点(2)AIN用于电子仪器。AIN中常混有少量对应的物质与O2在225~300℃发生反碳,将一定量含杂质碳的AN样品置于应的化学方程式:密闭反应器中,通入4.032L(标准状况下)的O2,在高温下充分反应后测得气体②取一定质量的二水合草酸钴分解后的的密度为1.34g·L-1(已折算成标准状钴氧化物(其中C0的化合价为十2、况,AN不跟O2反应),则所得气体的摩十3),用480mL5mol·L-1盐酸恰好完尔质量为g·mol1,该气体的全溶解固体,得到CoC12溶液和4.48L成分是(写化学式),该样品中(标准状况)黄绿色气体。试确定该钴氧含杂质碳g。化物中C0、O的物质的量之比(写出计算(3)钴及其化合物广泛应用于磁性材料、电过程)。池材料及超硬材料等领域。草酸钴是制370

  • 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

    -

  • 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

    you for pursuing a career in a STEM field.US women have a lot of work to do to take ourplace in science.The image of the card has 53 hundreds of comments as people were left surprised bythe heart-warming act.One said happily,"It brought a 54 to my face.What a wonderfuland kind gesture from a (n)55."A second said,"Some humans are absolutelywonderful.”41.A.newspaperB.bookC.letterD.card42.A.hopedB.imaginedC.realizedD.reported43.A.orderB.healthC.faithD.fame44.A.teachersB.relativesC.friendsD.classmates45.A.congratulateB.praiseC.forgiveD.respect46.A.ruleB.rewardC.giftD.result47.A.quicklyB.naturallyC.suddenlyD.accidentally48.A.in dangerB.in troubleC.in returnD.in need49.A.readsB.tellsC.showsD.spreads50.A.annoyedB.satisfiedC.mixedD.familiar51.A.addressedB.attachedC.limitedD.exposed52.A.understandB.knowC.loveD.influence53.A.madeB.invitedC.gainedD.passed54.A.pictureB.flowerC.tearD.smile55.A.strangerB.engineerC.professorD.student第二节(共10小题:每小题1.5分,满分15分)阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。World Book and Copyright Day is a celebration to promote the enjoyment of books andreading.Each year,on 23 April,celebrations take place all over the world 56 (recognize)the scope (of books-a link between the past and the future,a bridge betweengenerations and across cultures.On this occasion,UNESCO and the internationalorganizations 57 (represent)the three major sectors of the book industry-publishers,booksellers and libraries,select the World Book Capital for 58 year to keep the impetus(动力)of the Day's celebrations.23 April is a symbolic date in world literature.It is the date 59 several famousauthors,William Shakespeare,Miguel de Cervantes and Inca Garcilaso de la Vega all 60(die).This date was a natural choice for UNESCO's General Conference,61 (hold)inParis in 1995,to pay a world-wide tribute()to books and authors,encouraging everyoneto access books.By supporting books and copyright 62 (great),UNESCO stands up for creativity,63 (diverse)and equal access to knowledge,with the work across the board-from theCreative Cities of Literature network 64 promoting literacy and mobile learning.With theactive involvement of all 65 (participant):authors,publishers,teachers,librarians andthe mass media,World Book and Copyright Day has become a platform to gather togethermillions of people all around the world.第四部分写作(共两节,满分40分)第一节(满分15分)假定你是杭州红星中学的高三学生李华。为了让来校交流的美国学生更好地了解中国和中国文化,你校组织美国学生到京杭大运河的杭州段参观。现在学校招聘导游,请你用英语写一封信给国际部负责人,应聘这个职位。1.写信目的;2.你的优势;3.你的期待。【高三英语第7页(共8页)】23206C

  • 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

    (1)K2FcO,中铁元素的化合价为(2)制备K FeO,需要在(填“酸性”“碱性”或“中性”)环境中进行。(3)下列关于K2FO,的说法中,不正确的是(填字母)。a,是强氧化性的盐b.固体保存需要防潮c.其消毒和净化水的原理相同d其净水优点有:作用快、安全性好、无异味(4)将KFeO,与水反应的化学方程式补充完整:4KFcO+H,O一Fe(OHD,(胶体)++KOH该反应消耗1个K2FeO,时,转移的电子数为个。(5)消毒净化500m3水,至少需要K2FcO4的质量为kg。K2FeO4用于饮用水消毒净化的原理是18.(14分)高锰酸御生产过程中产生的废锰渣(主要成分为MnO2、KOH和Fe2O3)可用于制备MnSO,晶体,工艺流程如下:硫酸硫铁矿MnOzCaCO蒸发废锰渣反应了→过滤卫益▲反应□一→过滤召液2反应□-[调p日-一过滤3产品结品滤液1硫酸滤渣B滤渣C已知:①硫铁矿的主要成分为FeS2(杂质不参与反应);②Mn+为肉色。回答下列问题:(1)过滤时用到的主要玻璃仪器有烧杯、(2)废锰渣在反应I中粉碎的目的(3)“反应Ⅱ”的化学方程式为(4)“反应Ⅲ”中还原剂和氧化剂物质的量之比为(5)检验“滤液1”中是否含有Fe3+的方法是(6)取m g MnSO4固体样品,溶于适量水中,加硫酸酸化,用过量NaBiO3(难溶于水)将其完全氧化为MnO,,过滤,洗涤液并人滤液后,加入agNa2C2O4固体,充分反应后,用硫酸酸化的cmol·L-1的KMnO4标准溶液滴定剩余的Na2C2O溶液,用去VmL。①写出KMnO4标准溶液与Na2C2O,溶液反应的化学方程式:②样品中MnSO的质量分数(用含m、a、c、V的代数式表示)。【高二年级期末联考·化学第6页(共6页)】232824D

  • 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

    综合能力测试(3)参考答案及部分解析参考答案1-5 CABCC6-10 ACBCB11-15 BCAAC16-20 ABBAA21-25 DBCCD26-30 BDABA31-35 DABCA36-40 BDFCA41-45 BDCCA46-50 BDBAC51-55 DABCA56.lessons57.to58.her59.tasting60.to swim61.financially62.who63.the64.amazing65.started写作第一节One possible version:Dear Mr.George,I'm Li Hua from Class 8,Grade 1.Knowing that you are recruiting new members for the Englishdrama club,I'm writing to apply for admission.I love acting and have been taking acting lessons for years.I've taken part in several Chinese dramaperformances on campus,which are well received by students and teachers.Besides,I'm fluent in

  • 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

    分别为0.4mol·L-1、0.5mol·L-1和0.2mol·B.若t2时刻反应达到衡,则t1时刻改变的条件可L1,则达到衡后,C的浓度大于0.4mol·L1能为升温D.保持其他条件不变,升高温度,正、逆反应速率均增C.若始终保持温度不变,则均反应速率:<大,且A的转化率增大(o,表示0~ts内Fe2+的均反应速率,,表示9.工业上可通过甲醇羰基化96.00~t2s内Fe2+的均反应速率)法制取甲酸甲酯(HCOOCH):CH OH(g)+94D.0一2s内Ag的均反应速率为°,04mol·L1t2CO(g)=HCOOCH(g),在94.0·s-1容积固定的密闭容器中,投93.513.T℃时,体积均为0.5L的两个恒温恒容密闭容器中入等物质的量CHOH和93.0发生可逆反应:3H2(g)+N2(g)一2NH3(g)△HCO,测得相同时间内CO70758085%温度(℃)=一QkJ·mol-1(Q>0)。保持温度不变,实验测得的转化率随温度变化如图起始和衡时的有关数据如下表:所示。下列说法不正确的是A.增大压强甲醇转化率增大起始时各物质物达衡时体系B.b点反应速率v正=V逆实验编号质的量/mol能量的变化C.衡常数K(5c)>K(85),反应速率h0k正、k逆分别为正、逆反应的速率常数(与温度有关),B.三种条件下起始的氢碳比:①<②<③lgK与的关系如图所示:C.其他条件不变,缩小容器的体积可提高CO2的转化率下列说法错误的是D.控制温度为400K时,曲线③起始CO2浓度为2A.升高温度,正、Y逆均增大mol/L,达到衡时所需时间为5min,则0~5B.曲线③代表lgkminv(H2O)=0.2mol·L-1·min-C.要提高单位时间内有害气体的去除率,可研发高12.T℃时,含等浓度的AgNO3Ac/(mol-L-)温区的高效催化剂与Fe(NO3)2的混合溶液0.1D六℃时,该反应的衡常数K为10中发生反应Fe+(aq)十C(AB0.08Ag*(aq)一Fe3+(aq)十答题卡Ag△H<0,t1时刻,改题号235变某一外界条件继续反应0.0至t2(t2=4t)时刻,溶液c(Fe)答案0.01中c(Ag+)和c(Fe3+)随时间的变化关系如图所题号9101112131415示。下列说法正确的是答案已知:T℃时,该反应的化学衡常数K=1。A.若t1时刻未改变外界条件,则此时该反应处于衡状态京星·高三·化学(B)·一对一(二十二)[第2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

    D.乙酸和乙醇发生酯化反应CH3COOH+CH3CH2 DHCH;COOCH2CH3+H2O,乙醇、乙酸、乙酸乙酯蒸气在冷凝管中遇冷,回流到三口烧瓶中,增加乙酸、乙醇的利用率,提高乙酸乙酯的产率,同时利用分水器可以做到乙酸乙酯与水的分离,故D正确:答案为D。14.A.金刚石、金刚砂同属于共价晶体,C-C键比Si-C键键长短,键能更大,故金刚石比金刚砂熔点更高、硬度更大,故A正确;B.氯化钠晶体中C1的配位数为6,氯化铯晶体中C1的配位数为8,故B错误;C.干冰为分子晶体,干冰的晶胞中CO2的堆积方式类似于面心立方最密堆积,其出现在晶胞的顶点和各个面心上,因此以1个CO2为中心,其周围最多可以有12个紧邻的CO2分子,故C正确;D.水是极性分子,CCL4是非极性分子,根据“相似相溶原理”,O3臭氧极性微弱,所以在CCL4中的溶解度高于在水中的溶解度,故D正确。15.A.由图像可知,0.1moLH2A溶液的pH=1,即H2A全部电离为HA,说明第一步电cOH )(HA-)离为完全电离,HA不水解,A错误;B.Na2A水解衡常数K=c(A2-),结合pH=3时c(A2)=cHA),所以Kh=C(OH)=10I1,B正确:C.H2A溶液中全部电离,不存在H2A分子,则由物料守恒可知,c(A2)十c(HA)=0.1o/L,C错误;D.常温下,c(A2)c(A-)c(H)104=cHA)时,K=C(HA)=cH)-103,则A2水解衡常数K103=1011c(HA),则c(H)<103,溶液的pH>3,D错误;故选B。16.由流程知,甲苯与高锰酸钾在图示装置中反应生成苯甲酸钾,冷凝管能冷凝回流水蒸气、甲苯蒸汽,防止甲苯的挥发而降低产品产率;反应后混合物中含有氢氧化钾,加入有还原性的亚硫酸氢钠,还原高锰酸钾生成二氧化锰、趁热过滤、趁热洗涤后最大程度回收苯甲酸盐,加入盐酸后转变为苯甲酸,苯甲酸中含杂质氯化钾,利用苯甲酸能升华、溶解度的特点,提纯即可;(2)根据题给信息可知,苯甲酸微溶于水,故步骤I中反应完全的现象为:反应液不再分层(或无油珠):(3)根据题意可知,随后需要加入浓盐酸,会和过量的高锰酸钾反应生成有毒的气体,且亚硫酸氢钠具有还原性可以除去高锰酸钾,故亚硫酸氢钠溶液的作用是化学答案第5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

    struggling with hunger and food insecurity and due to COVID-l9it's a real.可知,夫妇俩正在帮助那些与饥饿和粮食不安全问题作斗争的人,由于新冠肺炎疫情的影响,粮食问题变成了一个真正的危机。48.C。根据文中的We're on a mission to...those struggling with hunger and food insecurity可知,布拉德•佩斯利讲述了他们的救济行动。49.B。50.D。51.D。根据文中的Many people who never.food insecurity in2020可知,许多人从未想过自己需要食物救助,但现在他们正寻求这种帮助。有超过5,400万人可能遇到了粮食不安全问题,这其中包括1,800万名儿童,也就是说,大约四分之一的儿童遇到了这样的问题,这是非常令人心痛的。52.A,53.C.根据最后一段中的To date the tour has already donated meals to different food banksin many cities可知,夫妇俩要在很多城市停留。54.B。根据文中的In many cities,,long lines of people are.to receive frozen meals可知,人们在排队等候领取冷冻食品。55.B。根据文中的Both individuals and families experiencing food insecurities.the frozen meals可知,正在遭受粮食不安全问题和经济困难的人,尤其是那些受到新冠肺炎疫情影响的人,可以领到冷冻食品。第二节主题语境:人与社会一社会服务本文是说明文。Wheel the World是一家美国无障碍旅行台,为残障旅行者提供旅行指南,制定无障碍旅行方案。56.largely。考查副词。设空处作状语,修饰谓语,应用副词,表示"很大程度上”,故填largely。57.their.。考查代词。设空处作定语,修饰destinations,应用形容词性物主代词,表示"他们的”,故填their。58.described。考查动词-ed形式。设空处作后置定语,修饰the one,且describe与the one之间为逻辑上的动宾关系,应用动词-ed形式,故填described。

  • 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

    杂志上。【补充说明】l.BST:British Summer Time,英国夏令时间。2.EDT:Eastern Daylight Time,北美东部夏令时间。B篇主题语境:人与自我一一做人与做事本文是记叙文。美国Sabrina Cohen女士致力于让残障人士享受海滩的事业。4.B,理解具体信息。根据第一段中的Sabrina Cohen was 14 and on her way to a party with friends when the carshe was riding in was hit near her home in Miami Beach,leaving her paralyzed from the neck down,Cohen14岁的时候,一场车祸导致她身体瘫痪。5.A。理解具体信息。根据第四段中的It was a sunny day on Miami Beach,I wanted to be by the water以及My wheels got stuck in the sand.It took a handful of strong men to get me out.It was that moment of helplessnessthat made me and my friend say,We need to do something about this beach access..’可知,20l3年Sabrina未能接近海边的那次经历,让她产生了让残障人士享受海难的想法。6.D。推断。根据第五段中的Nearly a hundred volunteers,including doctors and lifeguards,now show up for theevent以及第六段中的To date,.our special beach day program has welcomed over&,O00 participants,familymembers,.caretakers一from not only South Florida.,but really from all over the world可知,这个特别海滩日项目很成功。7.B。理解具体信息。根据最后一段中的Her next goal is to put up a27,000-square-foot,three-.storyconstruction in Miami Beach that will be open year-round.At the moment she's raising money for the up-to-date,Sl0.5 million oceanside center readily accessible to the physically challenged可知,Cohen目前正在致力于为残障人士建造一座海滩活动中心。C篇主题语境:人与社会一一社会本文是说明文。世界上最大的树屋度假区即将开始营业。8.C。理解具体信息。根据第二段中的Once they saw how popular it was becoming,they decided to turn40 acresinto the largest collection of treehouses and forts in the world可知,Jensens一家人看到孩子们曾经住过的树屋十分受欢迎,于是嗅到了商机,决定建造树屋度假区。9.A。理解具体信息。根据第三段中的The Jensens are working with a mountain-modern architecture companycalled MossCreek Designs to follow their dreams可知,Jensens一家人正在和一家建筑公司进行合作,帮助他们圆梦。l0.B。推断。根据第四段中的We hope to provide our guests with lasting memories,.and breathtaking viewsleaving them with a desire to come back and stay with us year after year可知,Amanda和Brian Jensen希望树屋度假区能给人们留下美好的回忆,让他们欣赏到美丽的景色,让他们产生再次游玩的想法。因此可以推知,Amanda和Brian Jensen认为树屋度假区值得一去。11.A。理解主旨要义。文章第一段指出世界上最大的树屋度假区即将开始营业,进而介绍了建造树屋度假区的原因、目前的进度以及特色,由此可知,本文主要介绍了一个树屋度假区。D篇主题语境:人与社会一一艺术本文是说明文。新冠肺炎疫情期间,许多人发挥创造力,利用身边现有物品重现名画场景。l2.D。理解具体信息。根据第二段中的The call for homemade art appears to have started with a DutchInstagram account,Tussen Kunst&Quarantaine可知,这个重现名画场景的挑战开始于一个名为Tussen Kunst&Quarantaine的社交台账户。l3.A。理解具体信息。根据第二段中的simple instructions:choose a work of art and find three things aroundyour house to recreate it可知,挑战规则非常简单,人们只要选择一幅艺术作品,然后利用家里能找到的三件物品重现作品场景即可。

  • 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

    听力录音材料第四档(16一20分)L,与所给短文融合度较高,与所提供各段落开头语Tert 1衔接较为合理。2.内容比较丰富。M:Here comes the waiter to take our order.Whatwould you like,Jane?3.比较有效地使用了语句间的连接成分,使所续写短文结构紧凑,表达合理。W,Wl.think I'd like to have somethis is the season for crabs.M:Great idea.第三档(11一15分)1.与所给短文关系较为密切,与段落开头语有一定Tert 2M:What are you reading?程度的衔接】2.写出了若干有关内容。3.应用简单的语句间的连接成分,使文章内容连W:Imeading noveIt is minyreohipbetw os贯,表达基本合理。by my favorite writer.Teat 3第二档(6一10分)1.与所给短文有一定的关系,与所提供各段落开头M Is this the first time you've applied fo语有一定程度的衔接a shop assistant?2.写出了一些有关内容W:Well,not exactly-I worked behind the3,较少使用语句间的连接成分,全文内容缺少连贯counter in the school cafeteria this year.I性,表达不够合理。know it's not really the same,but it is similar.Text 4第一档(1一5分】1.与所给短文和开头语的衔接较差。M:Judging from the number of cars,there can't2.写出内容太少be many people in the cinema.3.全文内容不连贯,表达不合理。W:I think so.People prefer to stay at home insuch bad weather.不得分(0分):白卷,内容太少,无法评判:或所写内容与所提供的Text 5内容无关。M:Excuse me.There is something wrong with myOne possible version:room.I booked a sea-view room,but I can seenothing except for some trees.The little boy got quite upset.With hisW:Let me see.I'm sorry,but we don't have anyeyes fixed on the poor dog,a sense ofmore sea-view rooms available.Instead,weresponsibility appeared in his heart.Driven bycan take 50 percent off your bill.something extraordinary arising in his mind,Text 6the boy looked straight into the store owner'sW:Can I help you?eyes,pointed his finger,and responded to theM:Yes,I like this blue shirt,but it seems tooowner in a firm voice,"That little dog is worthbig.Do you have a smaller size?every bit as much as the other dogs and I'll pay youfull price."Consumed by enormous confusion,W:I'm sorry-we only have blue ones in mediumthe store owner countered,"He is never goingsize left.We've got yellow and gray in small.What about a yellow one?.to be able to run and jump and play with youlike the other puppies."M:No,it's too bright.I prefer something mild,gray or white.After the shop owner's explanation,theW:How about this gray one?little boy reached down and rolled up his pantleg to reveal a badly disabled left leg.DeeplyM:Yes,that's nice.Can I try it on?shocked by the scene presented in front of him,W:Ofcoue the changing roomrevethe owner couldn't even let out a word.(A few minutes later)W:Is it OK?Feeling his surprise,the boy softly replied,"Well,I don't run so well myself.It won't beM:Yes.I'll take it.How much is it?long before I can save enough money to take itW,That's$12.95,home.Feeling a stream of warmth flowingM:OK,here is a $20.through his heart,the owner accepted theM.Lkt the newrbage cn I lokikText 7boy's request and gave him a tight hug with thedog's bark lingering in the air.battery.WIt'sa garbage can for used batteries.英语试题(四)参考答案第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

    现在,你有两分钟的时间将试卷上的答案转涂到答题卡上。听力部分到此结束。试题答案1~5 BACAB 6~10 ACBCA 11~15 BBCBC 16~20 BCACA21~23 BDB 24~27 ABCA 28~31 CCDD 32~35 DADB 36~40 GECFA41~45 BCACD 46~50 ABDAB 51~55 CDBDA56.styles 57.witnessed 58.to enjoy 59.joyfully 60.a61.economic 62.motivation 63.or 64.What 65.Watching写作第一节参考范文:Dear Allen,I'm writing to invite you to join me to attend the first outdoor sculpture exhibition in ourcity,which will open next Saturday at Central Park.During the exhibition,as well as admiring more than 150 sculptures selected by 100sculptors,we can listen to the explanations of professional volunteers.More importantly,itwill be a valuable place where we can share ideas with others.If it appeals to you,shall wemeet at the gate of the park at 9:00 am next Saturday?Looking forward to your early reply.Yours,Li Hua第二节参考范文:After a while,Ruby opened the door,only to find them."Wow!"she slightly walked tothem,bent down and asked,"Are they all your lovely babies?Can I touch them?"Bellaseemed to understand what Ruby meant.She kissed one of her babies,and then looked up atRuby as if to approve of her request.Gently and cautiously,Ruby held the furry creatures oneby one,each giving a kiss."Mike!Come out!Quickly!"Ruby couldn't wait to share the joywith her husband.Hearing the cry,Ruby's husband came out.He was so shocked that he stood there,freezing like a log.Bella jumped to him,climbed to his shoulder and rubbed his face with hersoft fur.Mike stroked her affectionately.Suddenly,he put down Bella softly and rushed intothe room like an arrow from a string.Then returned Mike,but this time two bowls of nutswere in his hands.Seeing the four enjoying their feast,Ruby and Mike bloomed with a brilliant smile.How harmonious everything was!【高二英语·参考答案第5页(共5页)】·23-466B·

  • 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

    第一节NOTICEScience Odyssey Contest,a recent contest focusing on scientific experiments,is in progress,waiting for the active participation of all middle school students interested in science.Since the activity mainly centers on creativity and imagination,all entries should integrate creativeideas into the experimental designs.Once your video production is successfully made,you can sendyour resume,with the video attached,to www.owlkids.com by email.Besides,the deadline for theactivity is May 26th,so you're expected to get these done as early as possible.If you have any doubts in the process of video making,you can visit the website for further英语试卷参考答案与解析第5页(共9页)information.And I hope you won't miss such a rare chance to win great prizes!试题分析本次试题考查类型为通知。做为校科学俱乐部负责人,“我”负责通知对此感兴趣的同学们制作科学实验创意视频,积极参与此次竞赛。通知里还要包括视频内容、提交方式和截止日期这些写作要点。试题取材于真实语境,内容兼具趣味性和实用性,有利于培养学生的应用文写作能力。

  • 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

    2023年中考试题猜想·英语编审:金太阳教育研究院(义教)I.完形填空(共20小题;每小题1分,满分20分)阅读下列短文,从每小题所给的A、B、C、D四个选项中选出一个最佳选项。6Dong Yonghong,a marathon(马拉松)runner,is a middle school geographyteacher.Many years ago,1 he was running a marathon along the Ulan MulunRiver,the local "mother river",he noticed people throwing rubbish along the river-bank.He 2 the idea to have his students take part in the protection of the river.Dong picked up the rubbish whenever he 3 it.He knew it was important to getmore people for river protection.So he 4 the Green School with Love and Care pro-ject in 2011.To 5 the project,Dong has done nine field studies in Ordoscovering thousands of kilometers.In the 10 years since the project was set up,the 6 of members has reachedmore than 5,000.As many as 1.5 million plastic bottles,300 tons of waste paper and20,000 used batteries (were collected properly or 7.Dong often takes his students to the 8 every weekend for rubbish pick up.Doyou know where he often teaches his students geography?Yeah,along the river!Isn'tit 9 It's an outdoor geography classroom."I hope that through my 10,the students will come to know their hometownbetter and love it more so that they will realize the importance of protecting the environ-ment,”Dong said..()1.A.whenB,ifC.orD.though()2.A.playedB.gotC.joinedD.changed)3.A.boughtB.lostC.noticedD.used)4.A.cleaned upB.took upC.looked upD.set up)5.A.dropB.improveC.expressD.drive)6.A.numberB.colorC.purposeD.chance)7.A.fixedB.leftC.recycledD.raised)8.A.neighborhoodB.streetC.parkD.river)9.A.boringB.amazingC.difficultD.necessary)10.A.fieldsB.objectsC.breaksD.effortsBCathy is a 14-year-old girl.There used to be a(n)11 land near her neighbor-hood.As time went by,the empty land was filled with rubbish.People around hereoften complained (that it smelt too 12 in summer.But nobody tried to dealwith the rubbish.On a rainy day,Cathy looked down at the area.Then she saw the 13 on theroadside.The flowers looked very beautiful.Suddenly,an idea came to her 14.Later,she 15 her friend David a drawing of a garden.David said,"What abeautiful garden!But how can we make your 16 come true?It's hard.""Let's askothers for help,"Cathy answered.Then they explained what they wanted to do to theirneighbors door by door.After hearing the idea,most of the neighbors were excited andthey decided to 17 Cathy with actions.On a clear day,many people came to the empty land with some little trees andseeds (of different flowers.Cathy and her friends planted and watered the trees【2023年中考试题猜想·英语第1页】AH:

  • 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

    绝密★启用前2022学年第二学期温州十校联合体期末联考高二年级英语学科试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。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。第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。例:How much is the shirt'?A.£19.15.B.£9.18.C.£9.15.答案是C。1.What day is it today?A.SaturdayB.Sunday.C.Monday.2.What is Michael?A.A teacher.B.A lawyer.C.An accountant.3.What does the man mean?A.Ask Sally for the address.B.Send the mail to Sally.C.Call Linda directly.4.What are the speakers probably talking about?A.A photograph.B.A textbook.C.ATV set.5.Where will the speakers meet?A.At the station.B.At the cinemaC.At the church第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料,回答第6、7题。6.When will the woman have a class?A.At3:00B.At3:15C.At5:00,7.What will the woman do first after lunch?A.Go to workB.Play soccerC.Study in the library.听第7段材料,回答第8至9题。8.What's the probable relationship between the speakers?

  • 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

    考点04必修一UNIT3 SPORTS AND FITNESS·考点导航班级:姓名:l.重要词汇:honour;injury;strength;failure;compete;pretend:;cheat;positive,.stress;diet等2.重要短语:make it;set an example;fall apart;lose heart;make sense;pretend to do sth.;evenif/though;make a difference;rather than;cut...out;now and then;compare...with/to...3.重点句型:动词-ing形式作主语、作状语;现在完成进行时;even if引导的让步状语从句等4.单元语法:反意疑问句必备知识·考点巧练》4.只有当人们吃饱穿足了,再谈继续教育才有意义。I.单句语法填空Only when people have enough to eat and to wear1.The doctor said that Jack's headto talk about further education.(injure)would have a terrible effect on his brain.5.节约用水的重要性再怎么强调也不为过。2.His(strong)had almost given outThe importance of saving waterwhen the police found him in the desert.作3.His lack of professional knowledge accounts forⅢ.句型转换the(fail)of the experiment.l.It is said that Ken is a musician.(同义句转换)4.I had intended to go ondiet,but the dishes→Kena musician.这at the party were simply impossible to resist.2.When it is compared with the size of the whole5.Mary is looking for a sports watch to keep trackearth,the biggest ocean does not seem big at线her fitness and chart her trainingall.(分词作状语)剪progress.the6.It is in the very gym that was built last year thatbiggest ocean does not seem big at all.I workregularly after work.3.She stood rooted to the ground,wondering whether7.Their friendship of years finally fellshe should stay or leave.(疑问词+不定式)because they don't believe in each other.->She stood rooted to the ground,wondering8.Museums must competepeople'sspare time and money with other amusements.4.I feel more than honoured to be selected as one9.Little Tom pretended(study)hard theof the representatives..(it作形式主语)moment the head teacher came into be selected as one of the10.Experts predict that eventhe medicalrepresentatives.technology is developed,the virus will not5.I haven't been to Paris before,and Jane hasn'tdisappear completely.been there,either..(同义句转换)11.Despite the terrible weather,those brave climbers>I haven't been to Paris before,andmadeto the top of the mountain.12.The teacher,rather than the students,(refer)to Reading Skills published in America关键能力·秦养整合》一now.Ⅱ.根据汉语提示完成句子V.阅读理解1.在权衡了它的优点和缺点之后,约翰决定接受这You've probably heard that you need to move个职位。more throughout the day,and as a general rule ofJohnthumb,"more"is often defined as around 10,000decided to take the position.steps.Many people use the 10,000-step rule as2.只要我们不丧失信心,我们最终会克服暂时的困难。their marker for healthy living.As more peoplewe willtrack their steps by fitness-tracking wearable oreventually overcome the temporary difficulty.their iPhones,more of them do that.3.他为大家树立了一个全心全意为人民服务,不计But while sitting less is a great idea,the step较个人得失的榜样。rule isn't as black and white as one number.HebyDr.Greg Hager,professor at Johns Hopkins,regardlessof his personal gain and loss.decided to take a closer look at whether the steprule is accurate,and he found asking everyone to点blank adj.差然的Suddenly my mind went blank..我脑子里突然一片空白。英语

  • 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

    Every late autumn,dawn redwood trees in the Gutan Reservoir,East China's Zhejiang province dress ingold clothes.The dawn redwood forest also draws many tourists to wander in the forest.It is famous amongphotography enthusiasts for its red pond cypress,so that in the autumn it is also a film shooting location.Xiaohe Seedling Nursery of Dawn Redwood,Hubei provinceBest viewing period:Late autumnGeneral admission:FreeAs the hometown of the dawn redwood,Xiaohe in Lichuan city,Central China's Hubei province is aseedling nursery that is home to more than 5,000 dawn redwood trees listed for protection.The sceneresembles a fairy-tale world and draws many photographers who would like to capture the magic.Sihong Hongze Lake Wetland Scenic Area,Jiangsu provinceBest viewing period:Late autumn and early winterGeneral admission:60 yuan($9.19)/personIn the Sihong Hongze Lake Wetland Scenic Area,East China's Jiangsu province,the dawn redwoodforest is dressed in gorgeous colors in early winter.From an aerial view,it looks like a spectacular redocean.Covering 20 hectares,the dawn redwood forest is a heaven for wild animals and draws many nestingmigratory birds.Songhua Dam Reservoir,Yunnan provinceBest viewing period:Early winterGeneral admission:FreeThe early winter is the best season to view the dawn redwood forests in the upstream of the SonghuaDam Reservoir in Dianwei village,Kunming city.Nowadays,the protection zone is a habitat of migratorybirds,with beautiful villages,clear water,and a good ecology.The dawn redwood forest has become aspecial calling card for local tourism.21.What can not the dawn redwood tree be used for?A.PrintingB.Paper makingC.ConstructionD.Floor decoration22.On which of the following seasons can you view the most beautiful scenery of the dawn redwoodforests?A.Early springB.Early summerC.Late fallD.Late winter23.What's the similarity between Sihong Hongze Lake Wetland Scenic Area and Songhua Dam Reservoir?A.Free to view.B.Have the same best viewing period.C.Look like red oceansD.Attract migratory birds.BWhen White met the pit bull puppy in 2018,Darby was young,playful,strong as an ox.Then,in thesummer of 2019,came Darby's date with destiny.White was fishing in Northern California's Bodega Bay.He left Darby,then a year old and 100 pounds,in the parked car with windows down,while he cast his line a few yards away.The fish weren't biting,White recalls,until,suddenly,they were.At first,White thought he had hooked a stingray.But as he reeled (it in,he realized it was asevengill shark,about 6 feet long.Not uncommon,but still dangerous.He brought it close and carefullyunhooked it,expecting it to swim away.It didn't.The shark bit his ankle."All of a sudden there was blood everywhere,"says White.He yelled for help,hoping the fishermen downthe beach could hear.But they didn't seem to know what was going on.Fortunately,Darby did.He jumped outof the car and ran toward the water.He ran right up to the shark and sank his teeth into its gills ()浙江省A9协作体暑假返校联考高三英语试题卷第3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

    之来国体混合物可能含有A.NH,).SO.MEC.AC、C,NaG中的-一种或儿种,现对D该混合物做如图实验,所得现象和有关数据如图(气体体积均已换算成标准状况下的体积)。下列说法错误的是n.lalnh.hp32→2.4L气体碱石灰,体积不变浓硫酸,13.4L气体59.0g固体过量NaOH浓溶液白色沉淀1.6g久置,无明显变化过意无色溶液适量稀盐酸,白色沉淀过量稀盐酸沉淀溶解②最多31.2g③A.“步骤①”中发生了反应2A1+2Na0H+2H,0一2NaA1O,十3H,◆B.“步骤②”和“步骤③”中反应消耗的H+的物质的量之比大于1:3C.混合物中一定含有Al、(NH),SO4、MgC2、NaC1,不含有AlClD.混合物中一定不含有FeC2,可能含有NaCl和A1Cl,瑞3.工业上利用CO(g)和H(g)在催化剂的作用下合成CH,OH(g),发生如下反应:CO(g)2H,(g)一CHOH(g)△H。现于一定条件下向2L的密闭容器中充人一定量的CO(g)噬和H2(g)发生反应,测得在不同压强下衡体系中C0(g)的转化率随温度的变化情况如图所示。下列说法正确的是烯880%50%烟0。T温度X△H<0,p>p哦B.在了1、力1条件下,d→a的过程中,正、逆反应速率之间的关系:uE<她C.a、b、c三点对应的衡常数KKbK。的大小关系是K>K>K。閭D.b→c的过程,正反应速率变小,逆反应速率变大4常温下,用HCI(g)调节SrF,浊液的pH,测得在通人HCI(g)的过程中,体系中一1gc(X)(XV代表S*或r)与一以:品]的关系如图所示。下列说法正确的是广gcm:(2.2,1.0)c(HF)n:(4.0,1.0)+2C1m n-lgc(X)已知:SF,为微溶于水,溶于盐酸,不溶于氢氟酸、乙醇和丙酮的固体。A.Kp(SrF2)=10-1o,2【高三化学第4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

    二、非选择题(本大题包括5小题,共28分)13.(6分)阅读下列科技短文,回答问题。2023年10月26日17时46分,种身十七号栽人飞船与空间站组合体完成自主快速交会对接,中国空间站天和核心舱迎来新的三名航天员,航天员在轨的每一天都离不开环控生保系统。首先,环控生保系统的再生生保系统利用循环水电解制氧气,保证航天员氧气需求,电解水产生的氢气与宇航员呼出的二氧化碳在特种反应器中进行催化反应,从而降低舱内二氧化碳的浓度。其次,环控生保系统的水处理系统主要是将水燕气、汗液、尿液和生活废水等进行处理,经过该系统处理的水达到饮用水标准,且水的回收率达80%以上,回收的水用于航天员生活用水和电解制氧。(1)空气中氧气的体积分数约为(2)保持水的化学性质的最小微粒是(填微粒符号)。(3)再生生保系统利用循环水电解制氧气的化学方程式为电解水前向水中加入少量氢氧化钠的目的是(4)环控生保系统的水处理系统的优点是(写出一点即可)14.(6分)氧气的实验室制取和性质检验是重要的化学实验,根据如图所示装置回答问题。(1)若实验室用装置A制取氧气,反应的化学方程式为,试管口放一团棉花的作用是(2)若实验室用装置B制取氧气,装置B中应加入过氧化氢溶液的量至少要,防止生成的气体从长颈漏斗中逸出。(3)实验装置C中仪器a的名称是,该实验可观察到:硫燃烧发出火焰,同时生成一种有刺激性气味的气体。15.(5分)合成氨对社会发展贡献巨大。合成氨的工艺流程如图:N2、H空气氮气净化催化剂N2、HNH,(含N2、H)NH,(液态高温、高压水蒸气压缩焦炭氢气(填“物理”或“化学”)变化。(1)分离液态空气可得到氮气,此过程是(2)写出N和H2反应生成NH的化学方程式:(3)该工艺流程中可循环使用的物质是和2023-2024学年度第一学期九年级学科素养练(二)·化学第3页共4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

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


    大一轮复学案化学度之和大于0.7mmol·L,故C错误;实验室配制500mL积大于2L,所得NaCl溶液物质的量浓度小于0.1mol·L,故C0.2mol·L‘的MgS0溶液时,必须用到的玻璃仪器有


    2、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版14试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版14试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版14试题

    <


    3、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版14试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版14试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版13试题

    <


    4、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版23试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版13试题



    2、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版1


    5、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版22试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版22试题


    1、2023-2024衡水金卷先享题高三一轮复单元检测卷地理重庆专版22试题

    <


  • ‹‹ 190 ››
扫码二维码