高三第一轮复周测卷胞,C项错误:根据题表中数据可知,用浓度为25%的盐破溶液处理后,分裂期细胞数与观察细胞数的比值最高,说明该浓度更适合用于洋葱根尖细胞的解高,D项正确。【答案D3.存活因子是一种存活信号,它与细胞表面的受体结合后,启动细胞内部信号途径,抑制测亡发生,过程如图所示。下列叙述正确的是存活因子转录因子Bd-2基因周亡程序RNA蛋白激酶,。细胞凋亡注:→表示促进,表示抑制ABc-2基因仅存在于将要调亡的动物细胞中B.Bck-2基因的转录需转录因子,DNA聚合酶等的参与C.存活因子通过调控B2蛋白的合成来抑制细胞凋亡D.转录因子、ATP合成酶从细胞质进人细胞核通过0层膜【解析】B2基因不仅仅存在于将要调亡的动物细胞中,其存在于几乎所有的动物活细胞中,A项错误;Bl2基因的转录需转录因子、RNA聚合晦等的参与,B项错误;由题图可知,存活因子通过调控Bb2基因的表达,抑制细胞调亡,C项正确:转录因子从细胞质通过枝孔进入细胞核,通过0层膜,动物细胞中ATP合成的场所有细胞质基质和线粒体,细胞校中不能合成ATP,故ATP合成晦不进入细胞核,D项错误。【答案】C4.K1oho基因是一种与衰老密切相关的基因,它通过调控离子通道、信号通路或其他基因表达而发挥抗衰老、保护肾脏及心血管等作用。研究发现,Klotho基因缺陷小鼠寿命缩短了80%,而Klothe0基因过度表达后能够延长雄鼠30.8%、雌鼠19.0%的寿命。下列叙述错误的是A高等动物衰老的细胞内,Klotho基因的表达可能受到了抑制B衰老的细胞萎缩、体积变小,细胞核体积也变小,核膜内折,染色质收缩C.细胞代谢产生的自由基可能会攻击Kloth0基因,导致细胞衰老D.将更多的Klotho基因转入细胞后,可能不能完全阻止细胞衰老【解析】Klotho基因是一种与衰老密切相关的基因,它通过调控离子通道、信号通路或其他基因的表达而发挥抗衰老的作用,所以高等动物衰老的细胞内,Kloh0基因的表达可能受到了抑制,A项正确;衰老的细胞水分减少,细胞萎缩、体积变小,细胞核体积增大,核膜内折,染色质收缩,B项错误;根据分析可知,Koh0基因的表达可抵抗衰老,而细胞代谢产生的自由基可导致细胞衰老,可能是细胞代谢产生的自由基会攻击Kloh0基因,导致细胞衰老,C项正确;研究发现,K1oh0基因缺陷的小鼠寿命缩短了80%,而过度表达K1oho基因后能够延长雄鼠30.8%、雌鼠19.0%的寿命,说明细胞衰老不只与Kloh0基因有关,故将更多的Kloh0基因转入细胞后,不能完全阻止细胞衰老,D项正确【答案】B化5.图1表示细胞有丝分裂不同时期染色体数与核DNA数比例的变化关系;图2、图3分别是高等动细物甲,高等植物乙细胞有丝分裂的部分图像。下列叙述正确的是+染色体与核DNA数目比8AB7结构H微D五细胞分裂时期图1图2图3A图1中BC段进行核DNA复制,染色体数目加倍38【24G3ZCJ生物-R-必考-SX】
群落的水结构指群落的水配置状况或水格局,其主要表现特征是镶嵌性,不同林分密度下的植物种类存在差异体现了群落的水结构。【小问2详解】随林分密度的增大,白桦对阳光、养分等的竞争加剧,影响自身生长,导致均胸径减小。研究表明,人工造林时较为理想的林分密度是1200株hm2,此密度下白花均胸径最大,草本种数最多、灌木种数最多。【小问3详解】①碳元素在生物群落和无机环境之间以CO2的形式进行循环。植被中碳的去向与能量流动相辅相成,碳的去向为呼吸作用散失、流向消费者和分解者。林分密度为1000株hm2时土壤微生物分解能力增强,有机物分解速度快,导致土壤碳储量均较低。林分密度为1000株m2时密度过大净光合效率下降,植被碳储量降低,输入土壤的有机碳减少。适宜的林分密度能较好地实现土壤对碳的固存,提高了固定C02的能力,降低大气中C02浓度,缓解温室效应,这是生物多样性的生态学功能,这体现了生物多样性的间接价值。【小问4详解】人类活动往往会使群落演替按照不同于自然演替的速度和方向进行。不合理的人工林组成与结构及经营措施会导致一系列的生态问题,这主要违背了生态工程的整体、协调、循环、自生原理,最终影响碳汇林业的可持续性。21.下图是B细胞与辅助性T细胞(Th细胞)相互作用之后B细胞被活化的过程图。CD80/86是B细胞识别抗原后表达的蛋白,CD4OL是活化后的Th细胞表达的蛋白,BCR是B细胞表面的特异性识别抗原的受体,CD40和MHCⅡ是B细胞表面的组成性蛋白,CD28、TCR是Th细胞表面的组成性蛋白,请回答下列问题。B细胞Th细胞CD80/86CD28照网活化信号②BCR抗原加工、提呈MHCII TCRTh活化抗原Q活化信号活化信号①活化信号②CD40 CD4OLB细胞活●●●细胞因子(1)活化B细胞的第一信号是抗原在B细胞中加工形成的抗原肽,与MHCⅡ形成复合物,提呈给T细胞表面的,从而形成活化T细胞的第一信号。(2)由图可知,活化Th细胞和B细胞的第二信号分别是第21页/共29页
主武卷匹择题改动,用橡上。写在本试3.考试结束后,将4.本试卷主要考试超好人动布关林和味移知的两究。科研人员给小叔吸合不同护味的液体,并记录小鼠一定时间内的藤舐次数,结果如图所示。下列叙述结误的是30I组:甜味剂题:本题共16小题,每A味觉的产生需要借助功能正常、结构完整的反射弧才能Ⅱ组:甜味和苦味混合剂20Ⅲ组:苦味剂要求的。B单独喂食甜味剂或苦味剂时,味觉分子会刺激味觉感受完成位于我国东北地区10完成1~2题C比较三组小鼠的膝麻次数,Ⅱ组显著低于I组,与Ⅲ组器产生兴奋I组Ⅱ组Ⅲ组据结果推测,甜觉产生后,对苦觉的产生具有明显的抑制作用相近16、图1是测量离体神经纤维膜内外电位的装置示意图,图2表示测得的膜电位变化情况。下列叙述正确的是+60膜电位+30毫伏-902时间/毫秒图2图1Ay图1中A、B分别表示神经纤维受刺激前、后的电位情况B.神经纤维的状态由B变为A的过程中,细胞膜对Na+的通透性增大C图1中A、B测得的电位大小可能分别对应图2中D,F点D适当降低细胞外Na+浓度,在相同条件刺激下图2中F点会下移三、非选择题:本题共5小题,共60分。17.(12分)为适应不同环境,植物进化出了不同的光合途径,其中玉米就是典型的C途径植物,该途径的具体过程如图所示,Rubisco是催化C与CO2反应生成C的酶。回答下列问题:叶肉细胞的叶绿体维管束鞘细胞的叶绿体(有类囊体,没有Rubisco)(没有类囊体,有Rubisco)C02CaC4→C02→2C3NADPHPEP羧化酶RubiscoCs多种酶磷酸烯醇式丙丙酮酸(CH0)ATP酮酸(PEPADP+Pi3(1)玉米细胞中可固定CO2的物质是,还原C3所需要的ATP和NADPH是(填场所)上生成的。(2)相较于C植物,玉米等C4植物更能适应低浓度CO2的环境,从酶的角度分析原因可是。单独将玉米叶肉细胞置于明暗交替的环境中,发现NADPH的含段时间内上升,其原因是(3)盐胁迫是现阶段农业生产面临的主要问题之一,盐胁迫会影响光合作用从而导致作产。为了解盐胁迫对玉米光合作用的影响,科研人员进行了相关的研究,实验结果·24【高二生物学第4页(共6页)】
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第三单元物质构成的奥秘课题1分子和原子可第1课时物质由微观粒子构成数字资源要点回放4.对照实验是一种重要的科学方法。根据如图1.物质都是由等微观粒子构所示实验,下列说法不正确的是成的。粒相酚酞同大小2.分子的性质:分子的和都很浓容液的品红小;分子总是在不停地,温度越高,分水50mL冷水50mL热水子运动速率越:分子间有甲乙温度升高,分子间间隔;同种分子化学A.甲实验中浓氨水变红色性质,不同种分子化学性质B.乙实验可证明温度不同,分子运动速率不同A层C.甲、乙两个实验均能证明分子之间有间隔D.甲、乙两个实验均能证明分子在不断运动知识点一物质由微观粒子构成5.(2022·河南)从分子的角度解释下列生活中1.【教材图片变式】对教材图片(如图)的认识错的现象。误的是(1)墙内开花墙外可以闻到花香。A.上述操作涉及化学变化(2)一壶水烧开后,壶盖会被顶起。B.分子和原子是真实存在的C.品红在水中扩散是分子运动的结果D.这些图片均说明物质是由微观粒子构成的易错点不能正确运用分子的性质解释现象知识点二微观粒子(如分子)的基本性质6.对下列事实的微观解释正确的是()2.下列现象不能用分子运动的观点解释的是A.固体难压缩一分子间没有间隔(B.受热时,温度计汞柱液面上升—温度升A.品红扩散B.柳絮飞扬高,汞原子体积增大C.美酒飘香D.食醋挥发C.变瘪的乒乓球放入热水中能鼓起来一分3.(2022·河北)如图所示,封闭在注射器中的空子个数增多气被压缩后,气体分子的D.石油气能压缩在钢瓶内一分子间有间隔A.个数减少B.质量减小B居C.间隔减小7.(2022一2023·信阳期中)氨气有刺激性气味,D.种类减少结合表中信息,不能得出的是()26化学九年级上·RJ·河南
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第八套试题答案听力1~5 CABCA 6~10 BCACB 11~15 CAACA 16~20 BABAB阅读理解本文介绍了四本适合各年龄段孩子阅读的最佳的、有关科学的书。2l.D根据Diary of a Time Traveler by David Long部分的第1、2句可知,教授的目的是激发Augustus学历史的兴趣。22.A根据Galapagos George by Jean George部分的第1句可知,Jean George是纽伯瑞儿童文学奖的获得者。23.B根据Galapagos George by Jean George部分的第1句和Little Changes by Tiffany Taylor部分的第3句可知,这两本书都提到生物进化。B作者小时候一直以为父亲是个严厉、苛刻的人,直到最近的Tucson之行,她才看到父亲和善的一面。24.C根据文章第2段第3句可知,作者小时候不喜欢父亲是因为父亲对她要求太高。25.D根据第2段最后一句可知,作者每次和父亲一起外出度周末,她都非常紧张。26.C根据第3段的描述可知,Tucson之行后,作者觉得父亲其实很温和、友善。27.B最近的Tucson之行改变了作者小时候对父亲的印象,她现在发现父亲是一个很友善的人,所以作者感到她有了一个新朋友。C本文介绍了亲近自然有益于人体健康。28.A通读第1段可知,经常进行户外活动的人更健康。29.B根据第2段第2句可知,(Caoimhe Twohig-Bennett分析了自然对不同人的影响的研究结果,得出了亲近自然有益于健康的结论。30.C根据第4段最后一句可知,Caoimhe Twohig-Bennett希望政府打造更多绿色空间。31.D根据最后一段可知,作者强调了人们应该以正确的方式对待自然。D本文介绍了万圣节的由来以及该节日产生的影响。32.C根据第1段第1、2句可知,加拿大人喜欢万圣节是因为它给人们提供团聚的机会。33.C根据第2段第2句可知,万圣节为个人社交能力的发展提供了一定的空间。34.B根据最后一段第2句可知,万圣节在某种程度上回归到了它的本质一以社区为中心的活动。35.D文章主要介绍了万圣节的由来以及影响,所以文章可能来自文化类杂志。补全短文36~40 CGAED完形填空作者认为我们应该更注重寻找内心直实的快乐4l.D根据下文ads promising it to be“Best of the Best'”可知,广告封面上的女性应该是有魅力的。42.A不幸的是,整篇文章没有提供任何关于如何过好生活的建议,而是集中在各种昂贵的护理上。43.A44.B根据上文可知,作者对于这篇文章的内容表示怀疑,觉得这是不可能的事情。45.D根据上下文可知,作者很少化妆,只是买一些护肤品和戴一两件首饰。46.B47.C作者的丈夫不仅喜欢她的这种方式,而且他与作者的方式是一样的。·29·【22新教材老高考.DY·英语·参考答案一R一选择性必修第四册一Y)
17.(13分)“价-类”二维图具有直观、线索清晰、引导性强等特点,有利于提高统筹思维和概括能力。氮元素的化合价与部分常见含氮物质类别的“价-类”二维图如图所示。↑氮元素的化合价HNO+4E+3+2-◆D+10单质氢化物氧化物酸物质类别请回答下列问题:(1)实验室中制备气体A的化学方程式为;气体A与氧气在红热的铂丝作用下生成D的化学方程式为撤去热源后,铂丝继续保持红热的原因是(2)D与A在加热、催化剂作用下能反应生成B和另一种对环境无害的产物,请写出该反应的化学方程式:E为红棕色气体,则E的化学式为(3)57.6gCu与250mL14mol·L1浓硝酸反应,铜全部被消耗后,共收集到D和E的混合气体1mol(不考虑N204的存在),则D、E的物质的量之比是,将该混合气体与足量的水反应后,剩余气体的体积为L(标准状沉下)。18.(16分)【.甲、乙两组同学分别利用不同的反应原理探究外界因素对化学反应速率的影响。回答下列问题:(1)甲组同学利用反应C102+HS03→C1·+S0?探究反应速率的影响因素。实验设计如下表所示:0.1mol·L-1KCl030.3mol·L-1NaHS0:实验蒸馏水体积/mL混合液温度/℃溶液的体积/mL溶液的体积/mL15025252.525355060①该反应的氧化剂与还原剂的物质的量之比为②表中x=,实验1和实验2的目的是探究对化学反应速率的影响。化学试题第6页(共8页)
湖南师大附中2022-2023学年度高一第二学期期未考试化学参考答案一、选择题:本题共14小题,每小题3分,共42分。在每小题给出的四个选项中,只有一项是符合题目要求的。题号1234567891011121314答案DABCA DA BBB CB CA1.D【解析】A.乙醇能使蛋白质变性,所以乙醇可用于杀菌消毒,故A错误;B.葡萄糖与新制氢氧化铜反应,表现氢氧化铜的弱氧化性,故B错误;C.利用油脂在碱性条件下水解制备肥皂,故C错误;D.石墨晶体具有导电性,可用作电极,故D正确;选D2.A【解析】A.Na2O2属于离子化合物,电子式:Na+[:O:O:]2Na+,A正确;B.氨分子的电子式应该为:N::N:,B错误;C.乙烯含有碳碳双键,结构简式:CH2一CH2,C错误;D.碳原子半径大于氧原子半径,该模型不能表示二氧化碳的空间填充模型,D错误;答案选A。3.B【解析】水蒸气变成雪的过程中放热,△H<0,气体变成固体,混乱度减小,△S<0;答案选B。4.C【解析】A.1mol苯含有6mol碳原子,根据碳元素守恒,0.2mol苯完全燃烧生成CO2的数目为1.2NA,A31g正确:B.1molP含有6molP-P,故31gP中的共价键的物质的量为(31X4g/moX6=1.5mol,即1.5Na,B正确;C.NaOH水溶液中溶剂水和溶质NaOH都含有的氧原子,故l00mL0.1mol/L的NaOH水溶液中含有的氧原子数不止0.0lNA,C错误;D.H2与2反应生成HI的反应是等体积的可逆反应,故0.1olH2和0.1olI2于密闭容器中充分反应,分子总数为0.2NA,D正确;故选C。5.A【解析】A.需要加热才能发生的反应不一定是吸热反应,也不一定是放热反应,A符合题意;B.正反应的活化能高于逆反应的活化能,该反应一定是吸热反应,B不符合题意;C.反应物的键能总和高于生成物的键能总和,该反应一定是吸热反应,C不符合题意;D.反应物的总能量高于生成物的总能量,该反应一定是放热反应,D不符合题意;故选A。6.D【解析】A.常温常压下1至4个碳的烃为气体,A项正确;B.丁烷C4Ho同分异构体考虑碳链的异构:正丁烷和异丁烷,B项正确;C.结构相似,且相差个CH2的物质。前者为丁烷,后者为甲烷,它们互为同系物,C项正确;D.正丁烷CH CH2 CH2 CH3有两种等效氢,其一氯代物有2种;异丁烷CHCH(CH)2有两种等效氢,一氯代物有2种。C4H0一氯代物有4种,得到4种不同沸点的一氯取代产物,D项错误;故选D。7.A【解析】该反应是正反应气体体积减小的放热反应,压强增大衡虽正向移动,但c(N○2)增大,混合气体颜色变深;压强减小衡逆向移动,但c(O2)减小,混合气体颜色变浅,据图分析,b点开始是压缩注射器的过程,气体颜色变深,透光率变小,C点后的拐点是拉伸注射器的过程,气体颜色变浅,透光率增大。A.b,点开始是压缩注射器的过程,c(NO2)增大,气体颜色变深,透光率变小,A正确;B.d点前的拐,点是拉伸注射器的过程,d点是衡向气体体积增大的逆向移动过程,所以正<递,B错误;C.C点是压缩注射器后的情况,C(NO2)和c(N2O4)均增大,C错误;D.b,点开始是压缩注射器的过程,衡正向移动,反应放热,导致T6 高三第一轮复周测卷【解题分析)NSiO,的水溶液俗称水玻璃,A项错误,CSO,·2H,0俗称生石膏,B项正确;小苏打是NaHC0,而NaC0,俗称苏打,C项错误;FeSO,·7H0俗称绿矾,而胆砚是CuSO,·5H,O,D项错误。【答案B5.某溶液中可能含有S0,C0、C,检验其中是否含有S0,除BaC,溶液外,还需要的溶液是A.H2SO,溶液B.HCI溶液2C.NaOH溶液雪D.NaNO,溶液【解题分析】由于硫酸领既不溶于水也不溶于破,因此检验溶液中是否含有S0,除BC溶液外,还需要的溶液是盐酸。【答案B6.某探究性小组用废铜屑和黄铜矿来富集CuS,其富集原理如图所示。富集过程中,每转移0.5mo1电子,生成的Cu2S的物质的量为Cu金属有孔隔板CuFeS2A.0.25 molB.0.5 molC.1.0 molD.2.0 mol【解题分析】该富集原理为2H++Cu十CuFeS2一CS十Fe2++HS个,每生成1 mol CuaS转移1mol电子,B项正确。【答案】B7.实验小组设计如图所示的装置来验证SO2的性质。下列对实验现象的分析不正确的是L某浓度的HS04红色花瓣BaCl2溶液滴有酚酞的B,的cCL目围NaOH溶液溶液A.通人SO2一段时间后,试管内Br,的CCL溶液逐渐褪色,说明SO2具有还原性B.一段时间后试管内有白色沉淀生成,说明SO2与BaC,反应生成了BaSO沉淀C.试管中的红色花瓣颜色变浅,说明SO2具有漂白性,D.滴有酚酞的NaOH溶液红色变浅,说明SO2能与碱溶液反应【解题分析】试管内Br2的CCL溶液褪色,则SO2、Br2和H2O发生了氧化还原反应,说明SO2具有还原性,A项正确;由分析可知沉淀为BaS0,B项错误;试管中的红色花善褪色,说明SO2具有漂白性,C项正确;滴有酚酞的NaOH溶液红色变浅,NaOH的物质的量减小,则说明SO2能与碱溶液反应,D项正确。【答案】B8.若将铜丝插人热的浓硫酸中进行如图(a~d均为浸有相应试液的棉花)所示的探究实验。下列分析正确的是浓NaOH容d紫色酸性安全围石蕊KMnO,气球溶液浴液,A.Cu与浓硫酸反应,只体现浓H,SO,的酸性【24G3ZCJ化学-LKB-必考-SX】39 Ca2+反应的产物CaSO4。②H3AsO4是弱酸,电离出来的AsO3较少,所以酸性条件下不易形成Ca3(AsO4)2沉淀,当溶液中pH调节为8左右时AsO}浓度增大,Ca3(AsO4)2.大量沉淀。 One possible versionDear Kate,八书面表达Thank you for sharing your feelings with me.Iunderstand you because sometimes the way others talkto us can affect our mood.From your letter,I learnedthat Julie cares about you.The problem is the way shetalks.So I advise you to tell her how you feel.You cantell her that her words hurt you and ask her if she couldtalk to you in a friendlier way.You can also give hersome suggestions on how to talk nicely.If she's your truefriend,she will understand you and make a change.Anyway,I hope you and Julie can always be goodfriends.Yours,Li Hua14 I.根据每小题所提供的图画情景和提示词,写出句子展厅一个与图画情景相符的句子。句子展厅usually,schoolbe,roomThe boy usually goes to school by bike.The boy is cleaning the room.gg句子展厅句子展厅2front,classroom7often,friendsThe teacher is in the front of the classroom.I often play basketball with my friends.g句子展厅句子展厅3.there,on8.think,difficultThere is a lamp on the table.I think geography is difficult.g句子展厅句子展厅4.you,here9how longYou can't turn left here.How long is the bridge?g句子展厅®句子展厅5not,wrong10.be,storyDon't park in the wrong place.The woman is telling a story.2 全国100所名校最新高考横拟示范卷公本科学杂志。【阅读D】本文是一篇说明文。最新报告显示,在世界各国承诺停止使用破坏臭氧层的化学物质后,地球上空的臭氧层正在逐渐恢复。32.A【命题意图】本题考查考生的推理判断能力。【解题分析】根据第1段第1句可知,为了恢复臭氧层,几十年前世界各国同意停止生产消耗臭氧的化学物质。由此可知,臭氧层使世界各国通力合作33.D【命题意图】本题考查考生的段落概括能力。【解题分析】通读第2段可知,本段主要说明了全球范围内(包括北极和南极)臭氧恢复的不同时间。34.C【命题意图】本题考查考生的推理判断能力。【解题分析】根据第3段最后两句可知,佩特里·塔拉斯教授认为臭氧层的恢复表明,只要世界各国共同努力,就能取得成果。这为应对气候变化的行动树立了榜样。由此推断,他对应对气候变化的行动持乐观态度。35.B【命题意图】本题考查考生的细节理解能力。【解题分析】根据第4段第3句可知,纽曼说大气中氯和溴的含量下降了。【阅读七选五】本文是一篇说明文,主要介绍了积极主动倾听他人的好处。36.E【命题意图】本题考查考生理解上下文逻辑关系、还原信息的能力。【解题分析】E项内容与本段上一句的内容存在解释关系,说明有些人很自然地就知道如何站在别人的角度考虑问题。37.F【命题意图】本题考查考生理解上下文逻辑关系、还原信息的能力。【解题分析】F项内容与本段上一句的内容存在因果关系,说明他们争论的理由是因为他们没有完全了解对方的立场。38.C【命题意图】本题考查考生理解上下文逻辑关系、还原信息的能力。【解题分析】C项内容与本段下一句的内容存在递进关系,说明作为领导者应该对学新事物持开放的态度。39.D【命题意图】本题考查考生概括段落中心意思的能力。【解题分析】本段主要讲积极主动倾听他人会避免遗漏重要的信息,D项与本段内容吻合,总领英语卷参考答案(八)第5页(共8页)【23·(新高考)ZX·MN·英语·Y】 a cuprnedtrace thegnof Chinese cv Besiderorelate以,59 (relate)to thealone slasticculture of the Xia Dynasty (21st century-16th century BC)and the process of civilizationthe middle reaches of the Yangtze Riverave been moved forward.Theeveryyou knm thestudies aroused widespread attention.the updated regulations supervising theebra'sprotection and management of uder9e(锈f艺品)released in202,could hunderwater archaeology and cultural ertageIn China re entering3reserveHe saicrts ofeChineillivrthe proteeton of lral relic ith hegreatest care,and willep)cooperation with other countries to rry ou keyburnedure ofprograms.ude to"We need to allw the achievements of cultural relic protection to better servenmicandsia devement,eniven(使更有生气)cultural heritage,promote thecreative transformtion and development of such studies,and try our best to write“new chapter in cultural heritage development,"said Hu.第四部分写作(共两节,满分40分)第一节(满分15分)by the假定你是李华,上周三你校开展了“写对联(Writing Couplets)”的活动,请你给校英文报写一篇报道,内容包括:people1.活动目的;2.活动过程,isn't al3.活动反响。about注意:hungry1.写作词数应为80词左右;注意:2.请在答题卡相应位置作答。2.第二节(满分25分)strators阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。of theThe backyard of the house we lived in,for some reason,wasa shelter for abandonedomes innd homeless petsin the are and t Grandpa would fill six plates with leftoverisplay ofoodd cheap d and take themou to he backyard to feed the pets.ometimesthere was even a sray(走失)的dogor..if they were tame((到服)的,Grandp ouryogram toand find homes for them.英语试题(五)第11页共12页 不考虑其他损耗,则需要通入25℃,101kPa条件下的乙的体积为实验(二L。(已知:25℃、101kPa条件下的气体摩尔体积为24.5L·mo).探究4分)某些物质之间的转化关系如图所示(注:部分产物未写出,部分反应条件略去)。已知,常温下A、D,E均为无色无味的气体,C是一种能使湿润的红色石蕊试纸变蓝的气体,B为常被人们誉为生命之源的液体,X分解得到的产物A,B,C的物质的量之比为1:1:2。+HCID+H加热已知:实(4)R溶+NaOHc+DE+Cu选择③()X、G的化学式依次为(5)设计(2)写出C的一种常见用途:正F的大样放会道武等、货宝中等Ⅱ.探究环境问题(6)向K(3)反应⑤中每生成0.1molE时,参与反应的还原剂在标准状况下的体积为L;已(填“知,反应⑦为加热条件下G的浓溶液与H的反应,写出反应⑦的化学方程式:18.(14分)原料提取(4)写出反应⑧的离子方程式:为验证某集气瓶中充满的未知气体为E,请设计合理的操作步骤并预设现象:17(15分)高铁酸钾(KFeO,极易溶于水,溶液呈紫红色)是一种绿色净水剂,易溶于水。某小组在实验室条件下制备KFO,并探究其性质。回答下列问题:实验(一)制备KFeO已知:每(1)“灼烧搅拌棒浓盐酸处理(2)“碱浸用的石KMnOKOH溶液,NaOH溶液Fe(OH)(3)浸渣白AD(1)仪器M的名称是,装置B的作用是千学☑反应(2)装置C中生成K,FeO的化学方程式为(4)整个流(3)实验得知装置C中吸收C的量为装置A中生成C总量的75%,若装置D中的氧化(5)在空气产物只有0.02 mol NaCIO,且不考虑其他消耗,则理论上生成KFeO,的质量为如图。式),bg。【高三化学第5页(共6页)】·24-47℃· 本期参考范文书面表达专项练(二)591One possible version:One possible version:One possible version:Dear Tom,Dear Emily,Hello,everyone!My topic today is "Humour isMy article has been published in an English magazineKnowing that you are eager to improve your flexibility,essential in our life".As we know,life is not easy forI am writing to express my sincere gratitude to you forI would like to recommend Tai Chi to you.everyone and we need to have a positive attitude towardsyour guidance.Tai Chi is considered as a form of Chinese kung fu.it.So we badly need humour and there are variousAs a literature lover,I have been practicing writingThere are a lot of health benefits of practicing it.It canreasons.since my childhood and trying every possible means to boost your body coordination apart from improving yourFirstly,humour can help us relieve pressure.improve my writing skills.Last month,I wrote an article flexibility.More importantly,it can relieve stress andSecondly,a humorous person usually looks attractive,about my hometown.I asked you to help me revise it.cheer you up when you feel down.You can find somewhich contributes to building a close relationship withFollowing your advice,I polished my article and sent it tovideos on the Internet that teach you how to practice Taiothers.Thirdly,humour can keep us in high spirits,which an English magazine.Last week,I learned that my articleChi.In the park,you can see many people practicing itwill benefit our mental and physical health.had been published.I owe my success to your helpevery morning.You can also learn it from them.In a word,it is humour that makes our life colorfulI'd like to invite you to my home for dinner on Sunday.I am sure you will fall in love with Tai Chi whenand worthwhile.As far as I am concerned,we can't liveI hope you can accept my invitation.Lookingyou begin to practice it.落3a meaningful life without humour.That's all.Thank youforward to your early reply.Yours,发for your attention.Yours,LiHua酸LiHua言210One possible version:6One possible version:Dear Peter,改One possible version:Dear Jim,My name is Li Hua.I am writing to ask you to helpLast Sunday,the students'union in our schoolA variety of optional courses are offered this term,me in search of a warm-hearted student.organized a visit to the disabled children rehabilitationamong which Chinese cooking is very popular amongYesterday,I fell over a step on my way to the librarycentre.students.I would like to advise you to choose it.and could hardly move.Just at that moment,a foreignAt 8 am,we got to the centre.On arriving there,The course is taught by a famous chef who has wonstudent came to me.He gave me first aid immediatelywe were given a warm welcome by the children.First many prizes in various cooking competitions.Those whoand then took me to the hospital.But the kind boy left of all,we gave them lots of gifts.Then,we played sometake this course are supposed to gather in the service center.quietly before I could say thanks to him.The boy,Iinteresting games together,and they enjoyed themselvesfrom 4:20 pm to 5:00 pm on Thursday.The chef will teachguess,was in his twenties,of medium build,with curlyvery much.In the end,we told them some inspirationalthe leamners how to cook different types of Chinese cuisine.Iblond hair.I am eager to find him to express my gratitudestories.The children were interested in them and reallyto him.Could you help me find him?think this is a great opportunity for you to learn an importantgot inspired.At about 11:30 am,our activity came to ansurvival skill that will be beneficial to you in future.I would appreciate it if you could give me any kindend.of help.I hope you will have a great time learning ChineseI think this activity is very meaningful.On the onecooking.Yours,hand,we understood disabled children better.On theYours,LiHuaother hand,we developed the friendship with them.Li Hua3>11One possible version:One possible version:One possible version:Recently,the English Interest Group in our schoolDear Tom,Dear Chris,did a survey titled "How you keep in touch with yourI'm sorry to tell you that I cannot watch theThe annual art festival will be held in our sche 第二部分知识运用(共两节,满分25分)黑。第一节完形填空(共10小题;每小题1.5分,满分15分)阅读下面短文,掌握其大意,然后从短文后各题所给的四个选项(A,B、C和D)中,选出可以填人空白处的最佳选项,并在答题卡上将该项涂黑。True friendship lasts a lifetime.Years can pass,but the love always stays the same.For many years Tony Parker from the city garbage collection would arrive in front of theWierenicz home and there would always be three cute faces 16 for him.However,overtime,his route was 17,and Olivia,Emma.and Axel Wierenicz really missed him.Just for fun,the children's mother.Carla Wierenicz,posted an old video of Tony 18over and hugging her 3-year-old kids on Instagram.City officials saw the video and arrangedfor a(n)19 stop for Parker at Carla's house so he could see his young friends again.Just like old 20.the three kids did all the things they used to do when they saw Tony.From21_up into the truck to honking the horn(按喇叭),it was amazing for the now-.7-year-olds.They even continued their 22 to the end of the street.For the special meeting,they 23 exchanged gifts.Tony brought them toy dumptrucks and T-shirts.The three kids gave Tony a 24 they spent the night making for him."I love it.I'm going to hang it on my wall."Tony said of their drawingCarla said Tony was 25 for the love of her kids and loved to play with them."Heloved those kids so much,and the kids love him;he was the kids'hero,"she said.6.A.aitingB.answeringC.payingD.caring77.A.finishedB.droppedC.changedD.gone☑18.A.runningB.showingC.puttingD.gettingA19.A.importantB.specialC.proper了20.A.trucksD.rightB.timesC.activitiesD.parents21.A.pickingB.risingC.summing22.A.livesD.jumpingB.greetingsC.racesD.23.A.justcommentsB.neverC.already24.A.flowerD.alsoB.toyC.dinner25.A.thankfulD.drawingB.anxiousC.famousD.sorry英语试题(专家版六)的第6页(共8页) 4.What is the purpose of this text?A.To give education tips for parents.B.To offer suggestions to teachers.C.To encourage students to do more homework.D.To tell the lives of high school students in different countries.BMark knew he shouldn't be listening under the window at old Mr.Crowe's house.But hecouldn't help it-the voices were so loud.“What old coat?”asked a woman.."The grey one,with all the pockets,"said a man,angrily.That was Mr.Crowe.Then Mark heard the woman speak again."That old thing!"she laughed."I put it outfor the garbage truck this morning.That must be Mr.Crowe's daughter,thought Mark.As he thought about his neighbour,Mark heard there was a different noise coming from the house.The old man was crying.“Why are you crying?”asked the woman.“It was just an old coat.”The sound grew louder.Mark couldn't move.Then he heard the old man speak again.“It wasn't just an old coat,,”he shouted.“The pockets were full of treasure.”"Treasure?The pockets were full of treasure?"Mark couldn't believe his ears.He had tofind the coat-fast.Mark ran back home to get his bike.As he cycled up Hill Road,he kept thinking,"Thepockets...full of treasure.The pockets...full of treasure.What could be in the pockets?Hundreds of dollars at least,Maybe even thousands..Or diamonds(钻石),rubies(红宝石)and gold coins."The thought of it kept him going.At last Mark reached the top of the hill.He was glad to see the garbage truck,not far away from him.5.What did Mark do at old Mr.Crowe's house?A.He listened under the window.B.He looked through the window.C.He climbed up the window.D.He shouted at Mr.Crowe.6.What did Mr.Crowe lose?A.A green coat.B.A grey coat.C.Hundreds of dollars.D.Lots of diamonds.7.How did Mr.Crowe feeA.Happy.B.Sad.C.Relaxed.D.Calm.8.What's the best title for the passage?A.An Annoyed ManB.A Visit to the Hill RoadC.An Old Coat Full of TreasureD.A Different Noise Came from the NeighbourCYou may know about“junk food”like French fries..But do you know about“junk sleep'”?Recently,a British survey shows that there are many electronic products in teenagers'bedrooms.They are influencing teenagers'sleep badly.The survey was done among 1,000 British kids from 12 to 16.It found that 50%of themgot just 4 to 7 hours'sleep every day.But doctors say they need 8 to 9 hours.Almost 25%of the kids said they often fell asleep while they were watching TV,listening to music or using other electronic products.英语试题(一)第2页(共5页) 九年级教学质量监测模拟英语参考答案及评分标准第一部分听力I.1~5 BABBAⅡ.6~10 BABBCⅢ.11~15 ACCCBIV.16.Friday 17.park 18.hotter 19.noticed 20.cool评分标准:1~20题每小题1分。16~20中的单词拼写错误可酌情扣分。第二部分英语知识运用V.21 ~30 DCDAD 26~30 BBACC评分标准:21~30题,每小题1分VI.31 ~35 BDAAB 36~40 AADAC 41 ~45 CBDBD 46~50 ACBBB评分标准:31~50题,每小题1分。第三部分阅读理解VII.51 ~55 AGDFB评分标准:51~55题,每小题1分。VII.56~59 DAB 59~62 ADAD 63 ~65 DAA 66 ~69ABBC 70~72 BDD73.Because he often sits on Yosh's back when he gets tired.74.He feels happy and lucky.75.JJ Yosh and his cat are all adventurers.评分标准:56~75题,每小题2分。(73~75意思对即可)IX.76.avoid 77.several 78.effort 79.shy80.energy评分标准:76~80题,每小题1分。X.【范文】A possible version:Dear Mr.Smith,I am writing on behalf of our Chinese painting club to invite you to come to our StudentActivity Centre for some activities with us from 2:00p.m.to 5:00p.m.this weekend.As we know,Chinese painting is an important part of Chinese traditional culture.And itshows the beauty of persons and nature.You will enjoy a speech about the history of Chinesepaintings and some great Chinese painting works by famous Chinese painters in ancient times,like Wu Daozi and Zhang Zeduan.After that,we will practice it and learn about some basicdrawing skills.Lastly,we will communicate with each other about our feelings.I hope that you will be here to feel the beauty and power of Chinese painting.Lookingforward to your coming.Yours,Li Hua九年级教学质量监测模拟英语参考答案及评分标准第1页(共5页) 取代反应(1分)醛基、酯基(2分)(2)5(2分)2(1分)CH,OHC-N02(2分)CHOH(3)13(2分)0●【解析】结合信息①和B的分子式可知,B为H一C一CH一C一0一C,H;结合信息②和D、E、F的分子式可CH,OH知,D为CH0,E为◇CH=NH1,F为◇CH,N0:结合信息③可知,G为-NO2,以此CH,OH解答。CH,COOC,H.(1)A为,粮据酯的命名法,A的系统命名为苯乙酸乙酯,;A>B的化学方程式为01)CH3 ONaCH,C00C,H,+HC00C,H,214,0.→HCCH-0C2H+C2H0H,其反应类型为取代反应,B中含氧官能团的名称为醛基、酯基。OH(2)E为CH=NOH,有5种化学环境的氢;C为、一0H,其碳原子有sp2、sp两种杂化方式;C的CH,OH结构简式为C—N02CH,OH(3)F为◇CH,N0,F的同分异构体中符合a.仅含有苯环一种环状结构;h.含有一NH,;c.与金属钠反应产生氢气3个条件,则含有一C00H或一OH;若苯环含有2个取代基,分别为一C0OH、一NH2,则有邻、间、对3种结构;若苯环含有3个取代基,分别为一OH、一NH2、一CH0,则有10种结构;故符合条件的同分异构体共13种。化学第5页(共5页) W:Of course not.(Text 6)M:Room two twenty is smaller than our other rooms,but the price is just one hundred and sixty-five dollars forthe night.W:Does that include use of the pool and the exercise room?M:Of course.It includes the use of all facilities except the tennis courts,which are closed for the winter.W:Okay,I'll take it.I'll just carry my suitcase up and have a quick look at the room,and then I'm going out for abite to eat.I'm starving.(Text 7)M:It was great to actually meet the person that wrote the books I've enjoyed so much.And he asked us a lotabout our opinions of his work.W:I found that as he talked,it made all the references in his stories much clearer.He's certainly had variedexperiences-becoming a doctor,going climbing in the Andes...M:You're right.For me,that's the attraction of the stories-they've got such a wide range of settings.Younever get bored.W:I don't know.There have been a couple I couldn't get into.M:Well,they all make some sense to me after what he said.(Text 8)W:Have you heard about the apartment in Curry Grove that I've been assigned to design?It turns out that it willtake a lot more time than originally planned.Would you be able to help me out?M:Unfortunately,I'm not going to be able to.I'm supposed to train our new workers over the next two weeks,soI am not going to have time to do anything else.You can't do it all on your own?W:I probably can,but it is a very important project.I'm hoping to get it done by the deadline for sure.M:Then,you should tell Mr.Cortez and see if you can get help from him.He's a very generous co-worker,so Ithink he would be happy to help you a bit if you can't do it on your own.(Text 9)W:Good morning.Welcome to Science World.Today we're talking about direction.Some people never get lost,while others need a GPS just to find their way to the store!And,of course,a GPS is not always accurateM:Definitely.Everyone has a story about following a GPS route and ending up in the middle of a field!But,whyare some people so much better at finding their way than others?Are they born with that skill?W:Not necessarily.Scientists say people who have a good sense of direction probably pay more attention towhat's around them.They notice more details.A lot of people don't pay attention at all.If you're thinkingabout something else while you're walking,of course you're more likely to get lost.M:Hmm.I guess we do use things we see to help us find places.I remember there was a tree at the corner of astreet where my friend lived.One day,the tree was gone,and I couldn't find the street.I was completely lost!I was using the tree as a visual clue,even though I didn't know it.W:Yes,I've experienced something similar to that.Well,one day...(Text 10)M:Hello everyone.My name is Alan.On behalf of Medi Travel I'd like to welcome you all to Ibiza,where fun isas certain as debt and taxes.I am pretty sure you are going to enjoy your stay here in Ibiza.This is a beautiful,exciting city where you can relax and sit by the beach or enjoy some of the best clubs in Europe.You canwalk into town and enjoy the local shops and restaurants or take a moonlit walk along the water if you prefer4 泉州市部分中学2024届高二下期末联考英语参考答案录音文稿Text 1W:Are you going to be a teacher or a lawyer?M:Neither.In fact,I'm considering working as a journalist.I find it interesting and I wouldlove the challenge.Text 2W:Did you hear that there's a meeting this afternoon?M:Yes,I did.Do you know what it's about?W:I think it's about electing the new monitor.Text 3W:Bill,what's the matter with you?You look so tired and your eyes look dull.M:I didn't sleep well last night,for I always woke up with a sore throat and a cough.Text 4M:Hi,Maria.Our class are going to the park this Saturday.Would you like to cometogether?W:The park?But it's March,too rainy and early to have a party there!M:The plan is to clean up the park.We hope people will feel pleasant while they are there.Text 5W:James,would you like to watch a film with me tonight?M:Rachel,I'm not in the mood for this.W:Why?What's going on?M:I've lost the tennis game yesterday.Text 6W:Oh no.I don't have Amanda's phone number.M:What's wrong,Miyako?W:Amanda said we should get together again and that I should call her.But I don't have herphone number.M:I see...Well,don't worry about it.For Americans,that's usually a friendly way to saygoodbye.It's like when Americans say "Hello,how are you?",but they don't want you totell them how you are.It's just a friendly greeting.W:So saying "Let's get together sometime"is similar to that?M:Yeah,that's right.Text 7W:David,have you heard the news?Our school team is in the finals.M:I know.I watched the match on TV last night.【高二英语·参考答案第1页(共6页)】·23-514B· 10.2022年诺贝尔化学奖授予了研究“点击化学和生物正交化学”的三位科学家。已知“点击化学”中的一个经典反应如下图所示。下列说法中错误的是Ⅲ.提回答○-NN+H-CH和(1)装(2)装Y(3)步A该反应为加成反应203B个分子中,碳原子的杂化方式只有sD和sp两种(4)长(以Z都能使溴水褪色(5)可(6)锥D分子中所有原子不可能在同一面上题序24678910答案(7)取>第Ⅱ卷(非选择题共50分)13.(17月二、非选择题(本题包括3小题,共50分)】致发11.(17分)以苯为原料可以制备一系列化工产品,流程如图所示。洛尼8OHOH入BrHOG已知Diels--Alder反应回答下列问题:)A一B的反应类型巢加盛张(2)E的结构简式为。文脱返商条件为0西筑地3套PZ液中聊熊共有藏款是C44驶火网(4④洛流酸河热作用足量℃H00目受应的花置额纯一已知(5)B的结构简式为04mY构体和B本身)。,其同分异构体中,含苯环的结构有种(不包括立体异回答下(1)按(6)设计以)为原料合成(2)BBr(3)E属Q,h域合0的路线(无机试剂任选)。(4)久洛B1012.(16分)柠檬烯((5)C的○)为无色液体,密度为0.8g·mL,不溶于水可溶于乙醇,乙醚二氯甲烷,常用作有机合成原料、食品添加剂、药物。某兴趣小组利用如图所示装置夹持及加热装置略)从橙皮中提取柠檬烯。部分实验操作步骤如下:(6)设计I.将100g橙皮剪成碎片,投入乙装置中,加入约长导管30mL水;Ⅱ.打开弹簧夹,加热水蒸气发生器(甲装置)至水沸错误腾,当T形管的支管廿处有大量这么胃出时,打开冷凝水,关闭弹簧夹,水蒸气蒸馏开始进行,试卷分析此时可观察到在馏出液的水面上有一层很薄的油层;空·54· 基础题与中考新考法·九年级·全一册·英语reason原因;rule规则;idea想法。根据上文4.I am proud of myself to make much progress in"To our surprise,Mary chose chocolate in thestudying.game.”可知大家感到惊讶,所以要询问原5.Be careful about how to use these sayings因。故选B。6.She made a decision to learn something new to6.B【解析】考查名词词义辨析。progress进make her life more interesting.步;difficulty困难;point点;trust信任。根据写作迁移训练下文“so I want one for my sister'”可知此处指【高分范文】的是很难买到。故选B。My Changes7.B【解析】考查形容词词义辨析。busier更Looking back at the past three years,there忙碌的;happier更幸福的;stronger更强壮are many changes in different areas of my life的;worse更坏的。根据上文“I've never hadOn the one hand,I used to stay up late butchocolate and my family has 6 in buyingnow I think it's important to have a good rest.one,so I want one for my sister.”及空后的What's more,I'm gradually fond of sports such as“and more peaceful life than Mary”可知此处running and playing football,so I always spend指的是作者感到自己的生活比May的要更time exercising on the playground.On the other幸福。故选B。hand,I was too lazy to finish my homework on8.C9.B10.Btime in the past,but now I am proud of myself to4拓展设问make much progress in studying,especially in1.C2.BEnglish.3.C【解析】句子排序题。题干意为:下列事In a word,progress makes me happy and I件的正确顺序是什么?根据文章内容可知really believe my life will be better and better作者首先加入了俱乐部,接着和一个非洲女教材词句默写孩交了朋友,后来他们玩游戏,最后作者为玛丽买了铅笔。故选C。1.pride 2.introduction 3.exam/examination4.D【解析】写作意图题。题干意为:作者写4.speech 5.background 6.ton 7.ant这篇文章是为了0根据文章最后8.insect 9.fail 10.require 11.deal;dealt一段中的倒数第二、三句可知作者写这篇文12.dare 13.proud 14.silent 15.helpful章的目的是表达对父母和祖国的爱和感激。16.private 17.humorous 18.absent故选D。19.British 20.seldom 21.exactly第6课时22.interview 23.influence 24.guardSection B 3a~3b25.public 26.score 27.general 28.Asian教材词句促写作29.European 30.African 31.take up佳作好句仿写32.deal with 33.take care of 34.take pride1.I spent a long time developing the good habit ofin 35.in public 36.in person 37.at leastreading every day.38.from time to time 39.be proud of2.I used to stay up late but now I think it's40.be afraid of 41.be nervous ofimportant to have a good rest.3.The reason why I read newspapers is that I want单元检测to improve my reading skills.I.【主旨大意】本文是一篇记叙文。文章主要20万唯九年级QQ交流群:551549843 粗硅→气体2氯化氢300C(含SiO2、SiC)+99.99%硅(2)焦炭L-SiHCl 1100氢气石英砂1800-2000可(3)→气体3(1)气体1已知:SiHCl3中硅元素为+4价。下列叙述正确的是A.反应(1)2(3)均为置换反应B.气体1、2、3分别为CO2、H2、HCIC.标准状况下体积为22.4L的H2完全反应时转移2mol电子D.反应(1)投入石英砂、焦炭质量比越大,SiO2的转化率越高【答案】A【解析】【分析】石英砂(主要成分为SiO2).与碳在2000℃条件下反应生成粗硅和一氧化碳,粗硅与氯化氢在300℃条件下反应生成SiHCI3和氢气,SiHCI3与氢气在1100℃条件下反应生成高纯硅和氯化氢.达到制备高纯硅的目的。【详解】A.由以上分析可知(1)(2)3)均为置换反应.故A正确:B.气体1为CO,故B错误:C.(3)中发生反应:SiHCI,.+H1100℃i+3HC1,该反应中1mol即22.4L氯气反应转移4mol电子,故C错误:D.反应(1)投入石英砂、焦炭质量比越大,不利干石英砂充分反应,反应而降低其转化率,故D错误:故选:A。14.X→Y反应分两步进行,在催化剂Cat1、Cat2作用下能量变化如图所示。下列叙述正确的是ECatlCat2、[M]反应历程A.Catl作用下,第二步反应为决速反应第9页/共18页 第5期练题参考答案第2版READING ACTIVITIESActivity1略Activity 21.accommodation2.unique3.amazed4.fit5.four6.Admiring7.countryside8.(Uros)familyActivity 31.unique2.amazing3.exact4.excellent5.beautifulActivity 41.travel by boat,enjoy the unique plants and animals,explore the rainforest2.explore the ancient city,walk on amazing paths through the Andes Mountains3.visit the museums,admire the architecture,enjoy the excellent local food,goshopping,enjoy the unique Spanish and local Indian culture,stay in a local hotel4.enjoy the beautiful countryside,drive along the new highway,stay with a localUros familyLEXICAL CHUNKS1.获得护照2.apply for a visa 。-输电网。风力发电CL/NaCl溶液电极a●多孔炭泵电极b泵A.充电时电极b是阳极B.放电时NaCI溶液的pH减小C.放电时NaCl溶液的浓度减小D.每生成1 mol CI2,电极a质量理论上增加23g8.根据下列实验的操作和现象,可以说明相应结论的是选项操作现象结论将乙醇和浓硫酸的混合液加热,将生成的气体通入A溴水褪色乙醇发生了消去反应溴水中将某铁的氧化物用稀盐酸溶解,再滴入2滴酸性酸性KMnO,溶液褪该氧化物中一定含有BKMnO,溶液色Fe2向某溶液中加入少量铜粉并振荡,铜粉不溶解,再铜粉溶解,产生红棕原溶液中含有NO,滴入2滴稀硫酸色气体向2mL1molL的CuSO,溶液中滴入2滴0.1moL先产生蓝色沉淀,再K.[Cu(OH)]>DNaOH溶液,再滴加2滴0.1 mol/L Na,.S溶液产生黑色沉淀K(CuS)9.LiBr溶液可作为替代氟利昂的绿色制冷剂。合成LiBr工艺流程如下:BaSH2S04 Li2CO3HBr(少量Br2)→还原除杂中和浓缩…→LiBr滤渣气体下列说法错误的是()A.还原工序逸出的Br用NaOH溶液吸收,吸收液直接返回还原工序B.除杂工序中产生的滤渣可用煤油进行组分分离第3页共10页 AgI固子导横管ca-Agl品胞y-AgI品胞p=6.0g/cm3P=7.0g/cm竖管a竖管b题15图一2题15图一3①测定晶体结构最常用的仪器是②a一AgI与Y一AgI晶胞的体积之比为③判定α一AgI中导电离子类型的实验装置如题15图-3所示。实验前,H型管内填充满a一Ag,竖管a和b(含a一AgD的质量相同,两支Ag电极的质量也相同。通电一段时间后,可判定导电离子是Ag而不是厂的实验数据是▲。16.(15分)氯化亚铁活化过一硫酸盐HS0可有效去除废水中的氨氮,同时回收磷资源。(1)HSO5的结构如题16图所示。从物质结构角度分析,过一硫酸盐能在酸性溶液中直接将Fe2+转化为Fe3+的原因是▲。(2)FCCl2活化HSO5产生三种主要的有效强氧化性自由基(SO4、OH和Cl)。自由基对氨氮的去除具有一定的选择性,FeCl2活化HSO5过程的主要反应机理如下:Fe2++HS05→FC3++SO4-+OH、HSO5+H20→S0+2OH+H+、题16图SO4-+C1→SO2+C①酸性条件下,经氯化亚铁活化的过一疏酸盐可将废水中的PO转化为FPO4沉淀被全部回收。写出生成沉淀的离子方程式:▲②研究表明,过一疏酸盐溶液中单独投加FCl2可将废水中的PO全部去除,但NH的去除率却很低。额外投加一定量NaCl后,PO和NHt的去除率均达到100%。单独投加FCl2时,NHd去除率很低的可能原因是▲。(3)工业,废水中P0浓度需达国家标准(小于60mgL-方可排放。准确量取20.00mL用氯化亚铁活化过一疏酸盐处理后的废水,依次加入NH,一NH4C缓冲溶液和MgCl2溶液,使PO完全沉淀,过滤、洗涤。将所得MgNH4PO4沉淀完全溶解于盐酸中,用2.000×103molL-NaHY溶液滴定至终点(反应为Y4+Mg2t—MgY2,行滴定三次,均消耗Na2H2Y溶液5.00mL。通过计算确定此废水是否达到排放标准。▲(写出计算过程)(4)实验室用钛精矿酸浸废液(含FeCl2及少量A1+、Ca2+和Mg2+)制备FeCl24H20。已知:①经测定,废液中c(FeC)=0.1molL1。有关金属离子沉淀的pH如下表:氢氧化物Fe(OH)2A1(OH)3Ca(OH)2 Mg(OH)2开始沉淀的pH6.33.411.97.7完全沉淀的pH8.34.713.99.8②Kp(FeF2)=6.4×10-6、Kp(CaF2)=1.6×1010、K:p(MgF2)=1.0x10l:③当溶液中离子浓度小于1.0×105moL,可视为该离子已沉淀完全。为获得较高纯度的FCl24Hz0,请补充实验方案:向钛精矿酸浸废液中加入改性聚丙烯酰胺吸附溶液中的胶体杂质,静置一段时间后加入活性炭,▲,冷却至15℃结晶,过滤,用乙醇洗涤晶体,低温真空烘干。(实验中须使用的试剂有:HC气体、NaOH溶液、NaF溶液:除常用仪器外须使用的仪器有:pH传感器、F浓度传感器)CS扫描全能王3亿人都在用的扫描ApP 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 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.为监测巴伦支海鱼群的动向,主要利用的地理信息技术是
A.RS
B.GIS
C.GPS
D. 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13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 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 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


/化学(1-7)答案)
