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入号b/sC.7 m/sD.10 m/s二、多项选择题:本题共4小题,每小题6分,共24分。在每小题给出的四个选项中,有多项符合题目要求。全部选对的得6分,选对但不全的得3分,有选错的得0分。5,磁恐
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高三二模·全国卷·语文·叁吉答案及解折1.A【解析】“必须”错误,原文是“新时代的科学家要践展示的形式传播等。(每点2分,意思对即可)行科学家精神,努力实现从‘跟跑‘并跑'到‘领跑'的跨7.C【解析】
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(2)由于阴极射线带负电,向下偏转,则洛伦兹力方向向下,由左手定则可知,磁感应强度的方向垂直纸面向里。(3)由于射线射到0点,可知射线做匀速直线运动,电场力与洛伦兹力衡,有gB=号,,解阳后12.(
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第八辑材料二世界饱受新★内亮剑·2022相约高考三轮冲刺押题卷进的勇气和匹克精神在部要组成部分资北京奥考前信息卷料语文追逐和奥运相依、紧密禁(考试时间:150分钟满分:150分)》搏精神的舞能,创造了
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1、2024年100所名校高考模拟金典卷 24新高考·JD·英语-Y 英语答案
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第Ⅱ卷(非选择题,共160分)二、非选择题:共160分。第36~42题为必考题,每个试题考生都必须作答。第43~46题为选考题,考生根据要求作答。(一》必考题:共135分36.阅读图文材料,完成下列要
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学号18,在《联合国气候变化框架公约》第二十六次缔约方大会召开之际,《中共中央国务院关于完整准确全面贯彻新发展理念做好碳达峰碳中和工作的意见》和国务院《2030年前碳达峰行动方案》相继发布。中国通过坚
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议期间,太阳直射点向南移动逐渐接近赤道,北京昼夜长短变七缩小,C对:撒马尔罕正午太阳高度角变小,正午树影变长,D4A解析1根据材料“1921年8月“转交给个人波者集体“等信息故选C。并结合所学可知,以
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(5)甘油管藏法(2分)[(1)培养基制备的基本步骤为:计算~称量~溶化一灭菌~倒板;(2)灭菌是指用强烈的理化因素杀死物体内外所有的微生物(包括芽孢和孢子),常用的方法有灼烧灭菌、干热灭菌,高压蒸
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广东实验中学2023届高三第二次阶段考试历史本试卷分选择题和非选择题两部分,共6页,满分100分,考试用时75分钟。注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名、考号填写在答题卷
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14.(10分)如图所示,一种透明柱状材料的横截面是由一个等樱直角三角形O八B和二个半圆组成的,半圆的圆心恰好位于O点,OB为半圆的一条半径,圆的半径为R.一束单色光从OA面上的(14D点由空气中射入
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14.(14分)如图所示,图中阴影部分为某种透明材料做成的柱形光学元件的横截面,AC为一半径为R的圆弧,D为圆弧面的圆心,ABCD构成正方形。在D处有一点光源,从点光源经圆弧面射向AB边的一条光线恰好
4、2024届广西名校高考模拟试卷第二次摸底考试x物理试卷答案
B探究杠杆的衡条件C.用刻度尺测物体的长度4)根据图乙所示的二图像,可得到的实验结论是四、计算意(第21小题5分,第2小题7分,第小8分共20分:解答要有必更的公式和过程)2江游清棉是需颈个要营安乐
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·物理·参考答案及解析②大于(2分)x√y2二1g—(2分)货物绕地球做匀速圆周运动,设太空电梯对货物的支持力为N,则F-N=mw24R(2分)【解析】(1)斜槽的作用是提供一个恒定的水速N=mg(
5、中学生标准学术能力诊断性测试2023年9月测试[新高考]数学答案
ww产g产ga结合x1=my1十p,x2=my2+p,262m(gp-a2)可得+a-(1-gc2(0ma的)=0.·∠MQP=∠NQP,故当双曲线C的标准方程为一y=1时,结论也成立.…12分20.
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6,阅读图文材料,完成下列要求。(22分)希腊矿产资源丰富且质量高,具有许多专业用途。比雷埃夫斯港是希腊最大的深水港,是距苏伊上运河最近的西方港口。2010年我国企业正式参与该港运管,将其用作我国集装箱船从亚洲向欧洲出口的转运枢纽,至2020年比雷埃夫斯港年吞吐量世界排名从第93位提升至第26位,是“一带一路”倡议从理念变为实践,从蓝图变为现实的最好印证。下面左图示意比雪埃夫斯港地理位置,右图示意该港口结构。2540港口一交通干线(1)指出外港前的突堤对港口所起的主要作用。(4分)带与路”(2)说明比雷埃夫斯港的区位优势。(6分)巨1金10(3)分析希腊对比雷埃夫斯港依赖较强的原因。(6分)(4)概述我国将比雷埃夫斯港作为集装箱船转运枢纽对希腊经济的影响。(6分)线⑧型错误(技能型错误)《型错误(知识型错误)涉及题序失分错误内容涉及题序错误类型失分乐试卷分析审题错误推理错误表述错误书写错误增分策略【24新教材·ZC·地理(十一)一R一选择性必修2一HAN】
20.【材料一1950年7月,中央人民政府政务院第四十二次政府会议通过的表彰19.阅读材料,完成下列要求。决定指出:“解放战争和人民草命取得了全国范固的伟大胜利”,“大规模的恢复经济的建设工作业巴开始”,为了表扬部队中的战斗英雄,表扬工人、农民以及士兵中的劳动模范;为了鼓舞前线部队彻底歼灭残敌,也为了鼓励全国人民发扬新的劳动态度,克服困难,提高劳动生产率,进而发展生产,繁荣经济,建设美好的新中国,遂决定于1950年9月25日在首都召开表彰大会。决定还规定了出席会议代表的范围、名额、产生方法以及奖励方式等。随后,各地纷纷开展地区或行业内的英雄模范评选和表彰活动。材料二在全国战斗英雄代表会议和全国工农兵劳动模范代表会议上,毛泽东代表中共中央致祝词,并号召全党和全国人民向英雄模范们学。刘少奇指出:“过去劳动人民中有天才,有创造的英雄模范是不少的。但是,在旧的社会制度和反动政权的统治下,他们是被压制,被埋没了(的)。”今天,这样的英雄模范“才被重视,被尊敬起来”。1950年10月2日晚,大会在通过《告全国军队和劳动人民书》和声援朝鲜军民的电文后胜利闭幕。同时,会议期间首都还举办了中国人民解放军战绩展览会与全国工农兵劳动模范成绩展览会,展览会历时1个月,观众达百万余人。材料一、二均摘编自孙云《1950年全国英模表彰大会的召开及意义》(1)根据材料一并结合所学知识,概述1950年我国英雄模范表彰大会召开的背景。(6分)(2)根据材料一、二并结合所学知识,简析1950年我国英雄模范表彰大会召开的,义。(6分)历史(二)第7页(共8页)【24新高考·D·历史一GX
入朝为待。贞观十年(636年),诺昌铢赴唐都长安晋谒唐太宗并请婚,太宗以宗宝女弘化公主相许。从此,吐谷浮与唐王朝的关系日益亲密。永徽三年(652年)各共十一月,弘化公主回长安省亲,高宗优礼相待,又以宗室女金城县主赐嫁诺渴钵长0子慕容忠。料摘编自李占忠《解读武威吐谷浑王族墓葬》海台(1)根据材料一并结合所学知识,分析汉朝民族政策的影响。(8分)着上密(2)根据材料一、二并结合所学知识,指出汉唐民族政策的相同点。(6分)封线18.阅读材料,完成下列要求。材料一1678年,纽约是进入北美殖民地和加勒比海地区进行贸易的唯一港口。纽约商人主要是来自英国、荷兰的批发商,当时的商贸受“语言不统一、文化不统一”等问题的影响严重。纽约商人也从事远洋贸易,他们与南欧、西印度群岛通商,到非洲贩奴,并向盛产小麦的美洲腹地出售生活用品,再贩卖小麦。由于当时的纽约没有与内陆腹地联系的通道,所以在相当长一段时间内,它只是北大西洋沿岸与欧洲贸易往来的港口之一。摘编自蒲玉梅(从普通港口城市到全球性城市纽约全球性城市的形成与发展道路》历史(六)第5页(共8页)【24新高考·JD·历史-GX)历
19.(8分)2023年9月20日,国务院第15次常务会议通过了《未成年人网络保护条例》(以下来成纠人网终保们体世发个闷简称《条例》)。2024年1月1日,《条例》正式施行。作为我国首部专门性的未成年人网邻保护综合立法,《条例》的施行标志并我国未成任人成年人网络保护法治建设进入新阶段。对此,中学生小刚认为:“有了〈条例》,未成年人上网就可以安全无了!”请你对上述观点进行辨别与分析。20.(10分)悠悠爱国情,拳拳赤子心。多次在不同场合强调爱国的重要性,要求弘杨爱国主义精神。关于爱国的重要论述◆我国爱国主义始终围绕着实现民族富强、人民幸福而发限,最终汇流于中国特色社会主义。◆要爱国,忠于祖国,忠于人民。爱国,是人世间最深层、最持久的情感,是一个人立德之源、立功之本。◆让爱国主义精神在广大青少年心中牢牢扎根,让广大青少年培养爱国之情、纸砺强国之志、实践报国之行,让爱国主义精神代代相传、发扬光大、..4.(1)请分析多次强调爱国的原因。(6分)(2)为了让“爱国主义精神在广大青少年心中牢牢扎根”.请你提出几条合理化建议。(4分)道德与法治试卷邻5页(共6页)扫描全能王创建
房山区2024年高三年级第一次综合练思想政治本试卷共10页,100分。考试时长90分钟。考生务必将答案答在答题卡上,在试卷上作答无效。考试结束后,将本试卷和答题卡一并交回。第一部分本部分共15题,每愿3分,共45分。在每题列出的四个选项中,选出最符合题日要求的一项。【1题答案】【答案】D【2题答案】【答案】B【3题答案】【答案】B【4题答案】【答案】C【5题答案】【答案】D【6题答案】【答案】D【7题答案】【答案】A【8题答案】【答案】C【9题答案】【答案】A【10题答案】【答案】B【11题答案】【答案】C第9页共12页
A.向泡菜坛盖边沿注满水可形成内部的无菌环境B.在目标个体集中分布的区域划定样方调查种群密度C.向血细胞计数板上滴加培养液后盖盖玻片可避免调查结果偏大D.用高浓度的蔗糖溶液处理洋葱鳞片叶内表皮细胞观察质壁分离7.重叠基因是指两个或两个以上的基因共有一段DNA序列,或是指一段DNA序列成为两个或两个以上基因的组成部分。下列叙述正确的是()A.高等生物中出现重叠基因的情况比病毒更多B.重叠基因中的共同序列编码的氨基酸序列相同C.重叠基因共同序列上发生的突变一定导致其功能改变D.重叠基因能经济和有效地利用DNA遗传信息量8.下图中B神经元和D神经元对C神经元的兴奋都有抑制作用。以下叙述正确的是()A.B神经元释放的神经递质能促进A神经元释放神经递质,进而抑制C神经元B.A神经元释放的神经递质能使C神经元膜电位由外正内负转变为内负外正C.D神经元释放的神经递质与C神经元膜上的受体结合后,能使氯离子通道关闭D.B神经元对C神经元的抑制与D神经元对C神经元的抑制相比,潜伏期短,持续时间短9.神经性口渴是由渴感的渗透压调节阈值降低所致。当血浆渗透压高于该阈值时,机体会产生渴感,患者表现出口渴、多饮、多尿等症状。下列叙述正确的是()A.渴觉中枢兴奋后,兴奋传递至大脑皮层产生渴觉属于非条件发射B.患者排尿时,脊髓的排尿中枢受大脑皮层高级中枢的控制属于分级调节C.机体产生渴觉后会主动饮水,随后下丘脑合成、垂体分泌的抗利尿激素会减少D.某人因出现严重呕吐而大量失水会导致血容量减少,血压上升,同时感觉口渴10.“淀粉-衡石假说”认为植物依靠富含“淀粉体”的衡石细胞感受重力的刺激。玉米根尖处于垂直状态时,茎芽中合成的生长素(IAA)通过中柱运输到根尖,均等分布在根冠的各个方向。下列相关叙述错误的是(中桂长区远地侧连中累含盘多少衡石细韵(较放火)近地侧淀粉体服尖水状态到根尖重直较寄时A.根尖也能合成少量生长素,生长素向伸长区运输需要载体蛋白和能量B.水放置时植物的茎部和根部生长素的分布受衡石细胞的影响是相同的C.衡石中的淀粉体最终将重力信号转变为合成生长素的信号
51616.(15分)某实验小组同学用铜与浓疏酸反应制取S02,验证SO2性质并制备NHS03,设计如图所示实验装置。a奇浓酸H计铜片石酸性多孔试液高锰酸钾溶解液球泡碳酸钠溶液氢氧化钠溶液ACD回答下列问题:(I)①仪器a的名称是▲。②C中的实验现象是▲·(2)确认浓硫酸与铜反应后的产物中含有Cu2*的操作方法▲。(3)试管D中发生反应的离子方程式为▲一。(4)向装置E中通入SO2可制得NaHSO3。已知:Na2SO3水溶液中H2SO3、HSO3ˉ、SO32-随pH的分布如图1所示,NaSO4的溶解度曲线如图2所示。袋1.000.380500.6034℃013020f毫0.200出302040.6080100pH温度℃图1图2①边搅拌边向NaCO,溶液中通入SO2制备NaHS03溶液。实验中确定何时停止通入SO2的实验操作为测量溶液的pH,当pH约为▲时,停止通入SO2。②请补充完整由NaHSO,溶液制备无水NaSO,的实验方案:▲,干燥,密封包装【实验中须使用的试剂有1.0 mol.LNaOH溶液、无水乙醇】17.(15分)工业及汽车尾气已成为城市空气的主要污染源,研究其反应机理对于环境治理有重要意义。()硝酸厂尾气可以回收制备硝酸。已知:①2NO(g)+02(g)=2NO2(g)△H1=-113.0kJ/mol@3NO2(g)+H2O(g)=2HNO3(g)+NO(g)AH2=-138.0kJ/mol4NO2(g)+O2(g)+2H2Og)=4HNO(g)△H=▲kJ/mol。(2)液氨催化还原NO是重要的烟气脱硝技术。使用FzO3为催化剂,可能的反应过程如图
性。石墨和金刚石同为碳单质,(2)实验二:该实验可证明石墨具有但它们的物理性质存在较大差异,其原因是(填粒(③)实验三:该实验中灯泡能发光,是因为DH在水游液中能解离出子符号)。进行实验一时,常常也需要加入少量的OH,其目的是①充相时刻”一中唇代表团身者礼服“是梁亮相开移式礼服的设计上坠入T大量16.(5分)杭州亚运会记录了许多精彩的“江西时刻”。的江西青花旋元素。绘制青花宽纹饰的原料中有一种是含钴氧化物,其中钴的化合如图是钴元素在元素周期表价为+2,请写出该氧化物的化学式:中的示意图,则钴原子的相对原子质量为地27C0钴58.93(2)“夺冠时刘”一江西选手徐晓诗夺得皮划艇冠军。制作皮划艇的材料主要有塑料、玻剪钢、胶合板等,其中塑料属于(选填“有机合成材料”或“天然有机材料")。生活中鉴别热塑性塑料和热固性塑料,可采用的方法是(3)“欢庆时刻”一亚运会期间,用于欢庆的烟花来自于江西李渡。传统烟花爆竹的主要成分是黑火药,其燃烧时的反应原理为S十2KNO,十3C点燃K,S十X个十3C0,个,则X的化学式为17.(6分)1931年,红军自制的第一颗子弹在江西兴国诞生。子弹的弹壳由黄铜(铜锌合金)制成。现将一批生锈[铜锈的主要成分是Cu,(OH),CO3]的弹壳通过以下流程进行处理回收铜、锌并制取铜锌合金,请回答下列问题。ZnSO,系列口加入过量的锌粉溶液A溶液处迎锌废加入过量步骤②稀HSOa加入过量操作a固体B稀H,SO,一定步骤③条件铜锌合壳步骤①固体A步骤④系列处理铜(1)步骤①:操作a中用到的一种玻璃仪器是(2)步骤②:加人过量锌粉的目的是(3)步骤③:该反应的化学方程式为(0步骤0:为比较铜锌合金和纯铜的硬度,可进行的操作是假设上述转化过程中无物质损耗,则最后得到的铜锌合金中的锌的质(选填“<“=”或“>”)原废弃弹壳中锌的质量。本试题卷共6页(第4页)
15,图示为交流发电机的工作原理图。线圈ABCD在磁场中绕轴转动产生感应电流时,电流在由线圈、铜环1,电刷3,灵敏电流计,电刷4以及铜环2构成的电路中流动。当线圈逆时针转动到图示位置时,线圈AB边的电流由A指向B。则A,在转动过程中,实现将电能转化为机械能B线圈在转动时,AB边在磁场中没有受到力的作用)线圈由图示位置转过180时,AB边内通过的电流方向由B指向A第15题图D,线圈由图示位置转过180时,CD边内通过的电流方向由C指向D16,妮妮回家时,发现有两个开关可以控制进出小区的门,闭合任何一个开关,电动机都会工作,把门打开,下列电路图符合上述要求的是MC017.如图所L1、L为两只完全相同、阻值恒定的灯泡,R为光敏电阻,R阻值随光照强度的增强而变小。当闭合开关S,随着光照强度逐渐X减弱,则A.L1、L,都逐渐变亮⑧L1、L,都逐渐变暗℃L逐渐变亮,L,逐渐变暗第17题图D,L逐渐变暗,L,逐渐变亮三、实验题(第18小题4分,第19小题4分,第20小题8分,共16分)18.图甲是探究“水沸腾时温度变化的特点”的实验装置温度/℃100公98计99290甲10时间/min乙第18题图(1)某小组用相同的装置先后做了两次实验,绘制出如图乙所示的、b两条图线。由图可知:两次实验中水的(选填“质量”“状态”或“表面气压”)不同。(②)撤去酒精灯后,水很快停止沸腾,说明要想使水沸腾,除了需要水的温度达到沸点外,还需要满足的条件是19,如图所示,某实验小组测量小车从斜面上滑下的速度。让小车在足够长的粗糙水木板上运AB动,从A点运动到B点所用时间为0.6s。则:长木板(1)小车在这段时间内运动的速度大小为0cm10m/s(结果保留两位小数)。2030(2)小车经过B点后的运动情况第19题图20.在伏安法测电阻的实验中,老师为兴趣小组提供的实验器材有:电源(电压恒为45V),电流(选填“是”或“不是”)匀速直线运动。表、电压表各一个,开关一个,阻值约为10Q的待测电阻,滑动变阻器(规格为“20Q、2A”导线若干。第3页(共4页)
21/:01题园wd@GN四49,E5○1-号--05A……(1分)(3)5.3…(2分))仰析电能表指示灯闪烁36次,净化器消耗的电能为3/336 imp2400imp/kw·h=0.015kW.h=5.4×10J物理(二)参考答案及评分标准第2页(共3页)工作时间t=20min=1200s,则净化器消耗的电功率为p'=W-5.4x10J=45Wt1200s由净化器能效比的定义可得,此时该空气净化器的能效比为240m/h=5.3m/(h.W)45W(4)由电路图可知,R、R串联,检测电路中电流表的示数为1=0.7A,由1=只得,电路的总电阻为R片器0n…(1分)根据串联电路电阻特点可知,气敏电阻的阻值为R=R总-R=402-102=302…(1分)由图丙可知,气敏电阻阻值为302时,此时空气中有害气体浓度是B,=2.0ugm。当检测电路的电流变为?=0.1A,此时电路总电阻为R-片-2mn(1分)根据串联电路电阻特点可知,气敏电阻的阻值为R′=Rg'-R=2802-102=2702……(1分)由图丙可知,气敏电阻阻值为2702时,此时空气中有害气体浓度是B2=0.1μg/m3。由题意知,净化效率等于净化前后空气中有害气体浓度的差与净化前有害气体浓度的百分比,则该空气净化器的实际净化效率为7-B2Bx100%-2.0gm2-0.1g/m×109%=95%…(1分)B2.0g/m物理(二)参考答案及评分标准第3页(共3页)
分M,完形填空(每小题1分,共8分)these keys to the wrong people can be like allowing a stranger intoyour house without you even knowing.If someone has personal请阅读下面短文,理解其大意,然后从每小题所给的A、Binformation about you,he coud pretend to be you,find out whereC三个透项中,选出一个能填人空白处的最佳选项。you live,or even use your personal information to buy thingsA.it is difficalt for kids o fill in formsLittle Tom came back home,with tears in his eyesB.someing onine is dangerous for kids“hat's the matter,Tom?How/s your trip?”his motherYour personal information may include your:full nameC.kids may follow people they don't know·addressasked with a big smile."I 26.The mountain was not only so·which school you oto,phone numbers·date of birth·email addres)38.The passage is mainly about how tohigh but also full of big or small stones on the way,I still wentusemames and paswordsfor onine accountso email accountsA.buy things onlineahead 27.But I was tired and it was so late that I had to comeparent or care's bank or credit card detailsB.proteet peral informtback,"Tom cried."It doesn't matter.You are only 14 years oldphotos that show where you live or your school uniformC.keep safe while using the Interetafter all.You will haye another 28,"his mother said."But,standing at the top of the mountain is my dream!"Tom said.His请阅读下面短文,从每小题所给的A、B、C三个选项中,连出一个最佳选项mother asked,"Did you see flowers on your way to themountain?""Sure,and there are many,"Tom replied."Did youAmazed by traditional Chinese culture,theTips29 the birds?"his mother asked."There were many kinds ofpost-1985 illustrator Wan Yue has found a way toHow to keep personal information safe?them,and the sound was very sweet,"Tom said."Did you feelAvoid using your full name online-choose acremgive traditional cultural elements(元素)athe 30 of nature?"his mother asked."Yes,the blue sky,thedoes not include your real first or last name or use a nicknamemodem touch with her ability to change objeetsinstead.into beautiful characters.white clouds,the green trees and the colorful flowers made a nicepicture,"Tom answered."That's 31!"his mother smiled andDon't lie about your age-you have to be at least 13 years odBased on China's archaeological(考古的)said,"Please remember,son.For often,achieving what youto use many social media apps.This is because some of the contentartifacts,she imagined beautiful ancient characters.Her cool artmay not be safe for kids.expees is not the most important thing.32 you didn't reach.Only friend or follow people you know-if you receivea friendinvites people to explore their stories in history.the top of the mountair,you got&lot on the w时.”reqestfrom someone you donnow,it is best to delete hisreqOne artwork from her cultural artifact series features a silverf is expected that each of our goais can be achieved,butKeep your email and phone number privateyour emailincense burner(焚香器)with patterns of grapes,flowers andactually not every job sccess,and not every dreamwill come tre.e most beau6 fal scenery(风景)ion the wa窗address might have your name and you don't want to get ntedbirds.Unearthed in 1970,the relic is now kept at the Shaanxitexts,calls or emails.)26.A.failed)27.A.heavilyB.beganC.allowed·Don't fill in all the fields on forms一if you sign up forHistory Museum in Xi'an.In Wan's work,a young woman dressedB.wiselysomething onine,like a competition or qui only fill out the fieldsin hanfu is shown to be dancing,with the incense burner flying in)28.A.styleC.bravelyB.chanceC.tradethat are marked with an asterisk (this symbol *)the air above her hand.)29.A.see)30.A.beautyB.hearC.feelB.value)34.The writer thinks the personal information isBy drawing on various elements with connections to the)31.A.trueC.spiritA.trueartifacts,Wan often lets her imagination lead the way.In this way,B.cruelB.strange)32.A.UnlessC.enoughC.importantthe artifact she's drawing seems to own a"spirit of its own".B.Although)35.According to the passage,C.Sincebelong to personal“For each painting,I start off with a draft(草图)based on a)33.A.end up with B.look forward to C.keep away frominformation.②birthdaysimple idea of the character...Then I try out different possibilities,评卷人W,阙读理解(这一部分共五篇短文,①uniform③school addressand then step by step present something that in my mind matches得分A至D篇每篇短文后有五个小④passwords⑤family photos⑥parents'workplaceswith the character,"Wan told China Daily.题,E篇后有六个小题,每小题2分,共52分)A.②3B.①⑤Known better as Yuyuqing on her social media accounts,WanC.④6A)36.A name thathas won more than 2 million followers on social media platforms.请阅读下面图文,从每小题所给的A、B、C三个选项中,选_might be the best screen nameA.is the most popular online"I feel a sense of responsibility and honor to contribute,in出一个最佳选项。B.doesn't show your real namemy own way,to letting traditional culture more and more widelyPersonal information is like the keys to your house.Givingknown,"she told China Daily.C.includes your first name and last name()39.What is Wan Yue?SX英语预测模拟卷(二)第4页共12页A.An illustrator.B.A reporter.SX英语预测模拟卷(二)第5页共12页C.An inventorSX英语预测模拟卷(二)第6页共12页
Text 9第M:Good morning,doctor.W:Good morning,Paul.You don't look very well.What第Aseems to be the trouble?部M:Yesterday afternoon,I was planting flowers around the21.What is special about Magoosh?A.It accepts returns within a month.pool when it suddenly began to rain heavily.I gotcompletely wet.I didn't pay much attention to it.But分It provides various learning tools.C.It gives free printed course books.at midnight,I found myself shaking uncontrollably听with cold.(13)(14)D.It offers a seven-day free course.W:Did you eat anything this morning?M:No.There might be something wrong with my stomach.读too,because I didn't feel hungry at all.eW:Well,Paul,you are still running a temperature.(14)第I'm afraid you have to stay in the hospital for one dayor two for observation.第22.What do we know about E2 Language Test Prep?A.It is the most popular online course.M:But there is an English test on Wednesday,and I'veB.It is best for self-taught individuals.雾only got three days to prepare for it.I need to gohome to go over my lessons.(15)雾C.It is highly recommended by expertsW:Paul,health matters most.(16)You'll get well muchIt is suitable for people with a tight schedule.slower if you go home and just take some medicine.23.Which course is likely to enable you to learn forM:Well then,I'll call my brother to bring my books here误free?力A.Kaplan.B.Magoosh.TestDEN.D.E2 Language Test Prepg听第10段材料,回答第17至20题。。B第17.What damage did the storm cause?第24.Which of the following can best describe theauthor as a pupil?⑨Power failures..B.Loss of life.A.Talented but unlucky.C.The fall of a building.B.Ambitious but impractical.分18.On which street did the flood carry away parked cars?分C.Sincere and warm-hearted.A.Green Street.⑧Main Street..Hardworking and confident.C.Brown Street.25.What led to the shift in the author's attitude听19.How many people got hurt in the bus accident?towards learning?A.5.B.10.20.What will the weather be like fomorro读A.The poor mark in a maths exam.B.His fierce conflict with his brotherA.Rainy.B.Windy.Sunny.His failure in a drawing competition.感D.The lack of courage to face criticism.Text 10第The western part of the city was hit by a strong第26.How did the author's mother react to his terriblestorm last night,causing serious damage.The heavymaths performance?rain caused landslides as well as floods that leftA.She got greatly shocked.hundreds of people trapped on building tops.PartsB.She was full of shame and depression.of the city also had power cuts because of it.(17)TheC.She decided to invite tutors to guide the author.ruin can be seen everywhere.On Main Street,the雾She helped find measures for future improvement.parking lot was completely flooded,and some cars27.What does the author mainly show through the text?听were moved across the parking area and into theWe should accept failure and learn from it.street by the floods.(18)It was a terrible scene.Windspeed reached eighty kilometers per hour.On Brown读B.We should try our best to stick to our dreams.C.We should recognize the positive aspects of failureStreet,many trees were pulled up by the roots and.D.We should improve ourselves by learning fromthen fell onto parked cars...感others.c第Worse still,on Green Street,a tree fell on a buscarrying passengers to a basketball game,leaving第28.What is the purpose of the second paragraph?A.To demonstrate the serious consequences of 9/11 terroristfive children and ten adults injured.(19)Luckily,attacks.部the weather is going to improve tomorrow.Cleareesty of adopting stric stmeasures.skies can be expected.(20)分C.To inform readers of the development of airport securityprocedures.D.To show the role of airport security screening in preventing听terrorist attacks.读29.Why are laptops required to be removed from bags duringsecurity screening?A.To speed up the whole scanning process.B.To prevent damage to laptops caused by X-raysC.To avoid disturbing other electronic devices.To improve the accuracy of assessing the bag's contents
2101题园山d国N四49,令45数学2模答宗pdf●●文件预览.∴.∠COB=2∠CAB=120°.5/59B0C,(第26题答案图1)OCB=30°..∴在Rt△OHC中,OH'=OCsin∠OCB=4sin30°=2.…(2分)数学(二)参考答案及评分标准第4页(共5页).·AH≤OA+OH'=OA'+OH'=4+2=6,点A到BC距离的最大值为6.…(3分)(2)延长AD,BC,交于点F∠ABC=90°,∠BAD=45°,.∠F=45°=∠BAD,.BF=AB=600.AF=6002..2AD +BC =AB BF=CF BC...2AD =CF,指2D必D又:∠F=∠BAD.∴.△AFC∽△BAD(5分)品=,2.∠FMc=乙Am.·∠BAD=45°=∠FAC+∠CAB,.∠ABD+∠CAB=45°,.∠AEB=180°-45°=135°作△AEB的外接圆⊙0,连接OA,OB,(第21题答案图2).∠A0B=360°-2×135°=90°,0A=0B=3002.…(7分)过点E作EH LAB于点H,过点O作OH'⊥AB于点H,并延长交⊙O于点E',连接OE交AB于点P,.·EH≤EP=OE-OP≤OE'-OH'=E'H',∴.EHx=E'H,SE=分AB.E连接AE',BE',..AE'=BE'..AH!=BI=OHP=AB =300.∴.E'H=0E-0=3002-300,.AE=√3002+(300√2-300)2=300√4-2√2,…(9分)∴AC'=2AE=600W4-22,BD=4C=600V2-2,迈此时小路BD的长为600√2-√2m.…(10分)数学(二)参考答案及评分标准第5页(共5页)通过「QQ浏览器」使用以下文档功能?全屏播放☑标注/填写区转为…去使用>
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保密★考试结束前六校联盟2023学年第二学期期中联考(2024.04)高二化学试题卷考生须知:1.本试题卷分选择题和非选择题两部分。全卷共7页,满分100分,考试时间90分钟。2.考生答题前,务必将自己的姓名、准考证号用黑色字迹的签字笔或钢笔填写在答题纸上。3.可能用到的相对原子质量:H:1C:12N:14O:16F:19C:35.5选择题部分一、选择题(本大题共16小题,每小题3分,共48分。每小题列出的四个备选项中只有一个是符合题目要求的,不选、多选、错选均不得分)1.茶卡盐湖因盛产“大青盐”而闻名,枯水季节湖水中氯化钾含量最高值达2.01%,下列有关氯化钾的说法不正确的是A.氯化钾晶体属于离子晶体B.氯化钾熔点低于氯化钠C.钾元素和氯元素均位于周期表的p区D.饱和氯化钾溶液能使蛋白质发生盐析2.二十大报告指出“必须坚持科技是第一生产力”,科技发展离不开化学,下列说法错误的是A.工业合成氨,常采用铁触煤、适当地提升温度和压强来提高反应速率B.霓红灯的发光机制与原子核外电子跃迁释放能量有关C.天宫课堂“五环实验”,向碳酸钠溶液中滴加甲基橙溶液后变成黄色D.为减缓海水中钢闸门腐蚀,常将钢闸门与直流电源的阳极相连,该方法为牺性阳极法3.乙硼烷是一种还原性极强的物质,可被氯气氧化:B2H6(g)+6Cl2(g)=2BCl3(①)+6HCI(g)。下列说法正确的是A.基态B原子的价电子轨道表示式为:2s22pB.BCl3分子的空间构型为三角锥形C.HCI中的H-CI键轨道重叠示意图为:,D.乙硼烷(B2H6)中的B采用sp杂化,其结构如图所示:H4.下列说法正确的是A.反式聚异戊二烯的结构简式:CHB.离子键成分的百分数:Ca3N2>Mg3N2CHC.电离常数Ka:三氟乙酸<三氯乙酸D.邻羟基苯甲醛的分子内氢键:5.新冠病毒(如图)由蛋白质和核酸组成,核酸由核苷酸组成。核苷酸的单体由五碳糖(CsH1O5)、磷酸基和含氮碱基构成。下列说法正确的是A.蛋白质、糖类、核酸均是能水解的高分子化合物B.NaCIo溶液用作消毒剂,是因为NaCIO能使病毒蛋白变性Spike protein(S)刺突蛋白C.戴口罩可有效阻断新冠病毒的传播,熔喷布(主要原料是聚丙烯)能使酸性高锰酸钾溶液褪色D.五碳糖(CsH1oOs)与葡萄糖互为同系物RNA六校联盟期中联考【高二化学】试题卷(第1页,共7页)
y/cm012x/10-'mA.质点P、Q刚开始振动的方向沿y轴负向运动B.t=0.75s时刻,质点P、Q都运动到M点C.t=ls时刻,质点M的位移为+4cmD.t=1.5s时刻,质点Q的位移为0非选择题部分三、非选择题(本题共5小题;其中第16小题14分,第17小题8分,第18小题11分,第19小题11分,第20小题11分;共55分)16.(14分)实验题I.(5分)(1)在用单摆测定当地重力加速度的实验中,下列器材和操作最合理的是●○铁夹铁夹粗的金属杆铁夹弹性棉绳细丝线细丝线弹性棉绳D铁球塑料球塑料球铁球(2)为了减小测量误差,下列操作正确的是A.摆线的长度应适当长些B.单摆的摆角应尽量大些C.测量周期时,取小球运动的最高点作为计时的起点和终点位置D.测量周期时,测摆球30~50次全振动的时间算出周期(3)手机中集成了许多传感器,如光传感器、加速度传感器等,如图乙所示小明在家尝试用单摆结合手机测量当地的重力加速度,当小球摆动时会引起手机光传感器的曝光值改变。如图丙所示某次实验测得单摆4次全振动的时间为7.203s,已知单摆摆长为0.8m,可以计算出当地的重力加速度为m/s2。(结果保留三位有效数字)1001手机整心差值7.203秒图乙03.0勒克斯图丙Ⅱ.(5分)(1)某学生在做“用油膜法估测分子的大小”的实验时,计算结果偏大,可能是由于A.油酸未完全散开B.求每滴体积时,1mL的溶液的滴数少记了10滴C.求每滴体积时,1L的溶液的滴数多记了10滴D.计算油膜面积时,舍去了所有不足一格的方格(2)实验小组的同学利用如图甲所示的装置探究气体等温变化的规律,注射器中密封了一定质量的气体。六校联盟期中联考【高二物理】试题卷(第4页,共8页)
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(四)()1.-Reading is theto the unknown world.-I agree.Whenever I open a book,I can enter a colorful world.D.keyA.skillB.goalC.plan)2.-Do you remember when and where youthe sweater?(-Sorry,I forgot it.D.have boughtA.buyB.will buyC.bought()3.Director Zhang Yimou'swork,Under the Light《坚如磐石》,came out aroundthe National Day Holiday in 2023.A.laterB.latestC.earliestD.earlier()4.Chinese farmers celebrated the Chinese Farmer's Harvest Festival on Sept 23.It's a timetothe hard work of farmersC.offerD.helpA.honorB.provide()5.-Did you hear what your sister said just now?-Sorry,Ito the weather report on TVA.was listening B.listenedC.listensD.is listening()6.-WeChat Pay makes our life more convenient,it is becoming more and morepopular in China,do you think so?-Yes,I agree with you.D.althoughA.unlessB.ifC.so)7.Confucius (went traveling across China to spread the spirit of beingkindA.exactlyB.heavilyC.widelyD.loudly)8.You'd better follow the rules at school,or youby the teacher the next day.A.punishB.are punishedC.are punishingD.will be punished(五))1.I'd like to visit Quan Hongchan's hometown.Do you know theD.countryA.capitalB.cultureC.address()2.-Have you arrived at the airport to pick up Mr.White?-Not yet,Ithe airport in half an hour.A.have reachedB.am reachingC.reachD.will reach()3.There is more space in the high-speed train and the journey becomes moreA.adventurousB.carefulC.nervousD.comfortable)4.The local government haspeople not to swim in the river.It's too dangerous.A.trainedB.warnedC.encouragedD.expected学科核心素养·英语第55页
1、河南省2023~2024学年度九年级综合素养评估(一)[PGZX C HEN]生物答案
(3)高温、过酸、过碱条件下,酶的空间结构遭到破坏,故酶活性几乎完全丧失(2分)(4)实验思路:设置甲、乙两组实验,甲组试管中加入一定量的淀粉溶液,乙组试管中加入等量的蔗糖溶液,两组同时加入等量的淀粉
2、卓育云2023-2024中考学科素养自主测评卷(一)历史试题
(3)需要注意材料是个案,只能从一个层面或视角反映客观历:探究视角B工业革命的特点史的角度作答。(3分)(1)特点(4)从一战后英国国际地位变化的角度作答。(3分)生产方式:机器生产取代手工劳动。技术
3、[卓育云]山西2024届九年级中考学科素养自主测评卷(一)历史试题
致的,故错误;D项是《辛丑条约》的结果项错误;材料没有体现太天国科举考试的5.B第二次鸦片战争期间,中国民众主动解除内容,不能确定是考查儒学的内容,D项与外国人之间的雇佣关系,并自发起来袭击错误。侵
4、卓育云·2023-2024中考学科素养自主测评卷(一)政治答案
《退思行活运用(我国目家机构)素能提升C)思路导引独上高楼·补漏洞1.B2.B身临其境,强素能-、1.C2.D3.A4.C二、5.(1)监察机关~审判机关和检察机关之间互相配合,互相制约。(2)监格,
5、24届广东省普通高中南粤名校联考2月学科综合素养评价地理试题
1、2024届单科模拟05地理答案
1、2024届单科模拟04地理答案
1、2024年高考单科模拟信息卷(一)1英语(X)答案
W:About eight years.After making some money by working in IT for a few years,I moved to the country and startedgrowing apples all over the farm one year later.Luckily,Aunt Kitty's family live nearby.They are of great help tome.But I'm afraid we need at least eight helpers to pick so many apples this year.You know,we try to harvest thefruits before the first frost.M:Oh,by the way,I'm using two robots to do the farm work.I can lend them to you anytime you want.W:That would be niee.Thanks.(Text 8)W:Hey,Terry,the charity fundraiser I'm organizing is going to be a big event!M:Where are you hosting it,Mary?W:Here in this coffee shop.There's space for live music,food,and lots of activities for kids.M:Oh,I assumed you would do it at a music hall.W:We considered it.But the staff member said it wouldn't be available then.Then we decided either here or the park.Finally,we chose this shop as it's more family-friendly.M:Yeah,that makes sense,and I suppose this is more private compared to the park.What charity is it?W:A local animal shelter.I thought this would be a great way to raise awareness and funds.They always need a littlesupport.M:That's awesome,What can I do to help?W:Well,I was actually hoping you could lend me a hand with the music.You know a lot of bands,and I was thinkingmaybe you could help me book some acts for the event.M:Sure,I'd be happy to help out.I'll see what I can do.(Text 9)M:Hello and welcome to today's Career Tomorrow.Today we are going to look at another kind of job-doctors.Wehave with us Dr Cassie Brown,who is a doctor at the Royal London Hospital.Hello,Cassie,how did you firstbecome interested in medicine?W:Well,I had a friend whose mother was a doctor,and I thought her job might be interesting.M:So how did you find out more about the job?W:Well,I became a volunteer in a hospital and assisted a doctor.I soon realized that this career was the right one forme.M:So what did you need to study at university?W:I studied Healing Science,and then I received a master's degree.M:How long did it take you to become a qualified doctor?W:Once I had finished my degree,I had to work for one year before I became qualified,so it took me five years.M:How many hours do you work every day?W:Well,I work at normal hours-nine to five.M.What do you like most about your job?W:It's never boring.In fact,I feel sorry when I have to have a day off!M:It sounds like a perfect job!Thanks for speaking with us,Cassie.(Tert 10)W:Is everybody here?Good.Now listen to me carefully.I hope you've all had a good day today.It's very unusualto have so much snow here at this time of year.Some of you were asking about tomorrow.Well,we're going unless thesnow gets much heavier during the night.I'll see you back here at six o'clock.Set your alarms for 5:30 and wash upyourselves in thirty minutes.Be here tomorrow morning with everything you need.You've all got a list-you need awhistle,in case you get separated from the rest of the group,warm clothes and gloves.A good pair of boots isimportant for you because we will spend at least six hours on walking.Don't forget the maps I gave you.I suggest younot bring cameras.You all look rather worried.There's really no need.As long as we all stay together,we'll have agreat time.OK,it's time we had dinner now,so if anyone has any questions,ask me on the way to the dining hall.Let's go.
W:About eight years.After making some money by working in IT for a few years,I moved to the country and startedgrowing apples all over the farm one year later.Luckily,Aunt Kitty's family live nearby.They are of great help tome.But I'm afraid we need at least eight helpers to pick so many apples this year.You know,we try to harvest thefruits before the first frost.M:Oh,by the way,I'm using two robots to do the farm work.I can lend them to you anytime you want.W:That would be niee.Thanks.(Text 8)W:Hey,Terry,the charity fundraiser I'm organizing is going to be a big event!M:Where are you hosting it,Mary?W:Here in this coffee shop.There's space for live music,food,and lots of activities for kids.M:Oh,I assumed you would do it at a music hall.W:We considered it.But the staff member said it wouldn't be available then.Then we decided either here or the park.Finally,we chose this shop as it's more family-friendly.M:Yeah,that makes sense,and I suppose this is more private compared to the park.What charity is it?W:A local animal shelter.I thought this would be a great way to raise awareness and funds.They always need a littlesupport.M:That's awesome,What can I do to help?W:Well,I was actually hoping you could lend me a hand with the music.You know a lot of bands,and I was thinkingmaybe you could help me book some acts for the event.M:Sure,I'd be happy to help out.I'll see what I can do.(Text 9)M:Hello and welcome to today's Career Tomorrow.Today we are going to look at another kind of job-doctors.Wehave with us Dr Cassie Brown,who is a doctor at the Royal London Hospital.Hello,Cassie,how did you firstbecome interested in medicine?W:Well,I had a friend whose mother was a doctor,and I thought her job might be interesting.M:So how did you find out more about the job?W:Well,I became a volunteer in a hospital and assisted a doctor.I soon realized that this career was the right one forme.M:So what did you need to study at university?W:I studied Healing Science,and then I received a master's degree.M:How long did it take you to become a qualified doctor?W:Once I had finished my degree,I had to work for one year before I became qualified,so it took me five years.M:How many hours do you work every day?W:Well,I work at normal hours-nine to five.M.What do you like most about your job?W:It's never boring.In fact,I feel sorry when I have to have a day off!M:It sounds like a perfect job!Thanks for speaking with us,Cassie.(Tert 10)W:Is everybody here?Good.Now listen to me carefully.I hope you've all had a good day today.It's very unusualto have so much snow here at this time of year.Some of you were asking about tomorrow.Well,we're going unless thesnow gets much heavier during the night.I'll see you back here at six o'clock.Set your alarms for 5:30 and wash upyourselves in thirty minutes.Be here tomorrow morning with everything you need.You've all got a list-you need awhistle,in case you get separated from the rest of the group,warm clothes and gloves.A good pair of boots isimportant for you because we will spend at least six hours on walking.Don't forget the maps I gave you.I suggest younot bring cameras.You all look rather worried.There's really no need.As long as we all stay together,we'll have agreat time.OK,it's time we had dinner now,so if anyone has any questions,ask me on the way to the dining hall.Let's go.
第10期参考答案7.c计量数应为1,且燃烧产物应为指定的产物;②物质化提示:由图可知,C是历程Ⅱ的催化剂,催化剂不学式后面需要标注物质的聚集状态;③热化学方程式、选择题能改变反应的焓变,则历程I、Ⅱ的反应热相等,即中化学式前面的化学计量数必须与△H对应。1.D△H=E6Eg=E5E2,相同条件下,两种历程中,O的衡13.(1)环形玻璃搅拌器未将小烧杯和大烧杯杯口提示:燃烧热指的是1mol纯物质在氧气中完全转化率相等,A选项正确,C选项错误。保持相燃烧生成指定产物时放出的热量,D选项反应不是在由图可知,C2(g)的相对能量为0,C(g)的相对能(2)-56.8kJ/mol氧气中燃烧,不能表示燃烧热,D选项错误量为(E2Eg)kJ/mol,Cl2(g)→2C(g)吸收的能量为(E2(3)高2.AEg)kJ/mol,则C一Cl键能为2(E2-Eg)kJ/mol,B选项(4)abc提示:由能量转化关系可得:正确提示:(3)反应放出的热量和所用酸、碱的量的多少①N2(g)+2O2(g)一2NO(g)活化能最小的反应速率最快,符合条件的转化为有关,若用60mL0.25 mol/L H2S0.和50mL0.55mol/L△H,=2x(473+497.3-937.1)kJ/mol=+66.4kJ/molClO(g)+O(g)=O2(g)+Cl(g)AH=(Es-E.)kJ/mol,DNaOH溶液进行反应,与上述实验相比,生成水的量增多,②N2H,(g)+O2(g)一N2(g)+2HO(g)选项正确所放出的热量高。△H2=(497.3+1756.2-2797.2)kJmol=-543.7kJ/mo8.D(4)装置保温、隔热效果差,测得的放热量偏小,中③N2H,(I))=NH,(g)△Hg=+9.7 kJ/mol提示:①C(s)+0,(g)一C0,(g)为放热反应,△H,=和热△H偏大,a选项正确根据盖斯定律,②x2+③x2-①,可得,2N2H,(1)+akJ/mol<0,a<0:②C0(g)+C(s)一2C0(g)为吸热反温度计测定NaOH溶液起始温度后直接插入稀2NO2(g)=3N2(g)+4H2O(g)△H=2△H2+2△H3-△H,=应,△H2=bkJ/mol>0,b>0,因此b>a,A选项正确。H2SO,测温度,硫酸的起始温度偏高,温度差偏小,测得2×(-543.7 kJ/mol)+2(+9.7 kJ/mol)-(+66.4kJ/mol)=根据盖斯定律可知,将②×3+③×2可得反应④,的放热量偏小,中和热△H偏大,b选项正确1134.4kJ/mol,A选项正确。则△H=(3b+2c)kJ/mol,B选项正确。分多次把NaOH溶液倒入盛有硫酸的小烧杯中,3.A提示:从化学键的角度分析,两个反应断键和成根据盖斯定律可知,将(①+②)×2可得:C(s)+热量散失,中和热△H偏大,c选项正确。若将四个实验测量温度均纳入计算均值,因实键方式相似,所以焓变很接近,A选项正确。20,(g)=C0(g)AH=空ml.C选项正确。验2温度差偏大,测得的放热量偏大,中和热△H偏小,d表示乙烯燃烧热时生成的H,O应为液态,B选项因为碳燃烧生成一氧化碳为放热反应,所以1mol选项错误。错误。未指明乙烯和丙烯的用量,无法判断,C选项错误碳完全燃烧放出的热量大于1mol一氧化碳完全燃烧14.(1)①a②B(2)水蒸气与煤炭反应吸热,氧气与煤炭反应放放热越多,焓变越小,△H,<△H2,D选项错误放出的热量,放热反应△H<0,故C0(g)+20(g)=热,交替通入空气和水蒸气有利于维持体系热量衡,4.CCO0(g)△H>akJ/mol,D选项错误保持较高温度,有利于加快化学反应速率提示:题给反应均为放热反应,据此可排除A、D9.D选项。(3)①9.0②1.8:1(或95)③BC④M+H,0提示:E,和E分别代表反应①和②的活化能,E>由反应过程中各气体浓度与反应时间的关系可MO+H2MO+CO-M+COE,则反应①为该反应的决速步,决定该反应的快慢,D知,反应初期随着时间的推移X的浓度逐渐减小、Y提示:(1)①油2x反应1-反应2可得反应3,则△H选项错误。和Z的浓度逐渐增大,之后,随着时间的推移,X和Y2△H1-△H2=[2x(-394)-(-566)]k/mol=-222kJ/m0l。10.D的浓度逐渐减小、Z的浓度继续逐渐增大,说明X(g)在反应1中,反应前后气体体积不变,则△S0,△H提示:根据图示可得:=Y(g)(△H,<0)的反应速率比Y(g)=Z(g)(△H2<0为定值,升高温度,y=△H-T△S不变,对应的为b线条。反应1:NaC03·10H,0(s)=NaC02·H,0(s)+的慢,则前者反应活化能高,据此推知,C选项正确在反应2中,反应后气体体积减小,则△S<0,△H9HO(g))△H>05.D为定值,升高温度,y=△H-T△S增大,对应的为c线条。反应2:NaC0g·10HO(s)一Na2CO(s)+10HO(g提示:正丁烷(g)一异丁烷(g)△H<0,为放热反在反应3中,反应后气体体积增大,则△S>0,△H△H2>0应,反应物正丁烷的能量比生成物异丁烷的高,能量为定值,升高温度,y=△H-T△s减小,对应的为a线条。碳酸钠晶体(NaC0·10H0)失水是化学变化,A越低,物质越稳定,则稳定性:异丁烷>正丁烷,A选项②温度升高,三个反应衡均逆向移动,由于反B选项均正确错误应2焓变绝对值更大,故温度对其衡移动影响程度由图可得,NaCO,(s)滴加水形成结晶水合物为放表示燃烧热时,生成的H20应为H,O(I),B选项错热反应,会导致温度升高,C选项正确。大,导致整体结果为C02的物质的量减小,C0的物误根据盖斯定律:反应2.反应1得:NaCO,H,O(s)质的量增大,所以C0与C02物质的量比值增大,本题浓硫酸稀释时放热,生成1 mol H2O(1)时,放出的应选B选项。一Na.COg(s)+HO(g)△H=AHg△H,D选项错误。热量大于57.3kJ,C选项错误。(2)水蒸气与煤炭的反应吸热,会引起体系温度11AC与CO2反应生成C0的反应为吸热反应,△H>提示:1 mol CH,0H(g)能量高于1 mol CH,0H(1),下降,从而导致反应速率减慢,不利于反应的进行,通0;C与O2反应生成C02的反应为放热反应,△H<0,则反应物的总能量相同,根据能量守恒定律,若温度不入空气,可利用煤炭与02反应放热,从而维持体系温△H>△H2,D选项正确。变,反应①中生成1 mol CH,0H(1)时放出的热量大于度衡,保证反应速率6.c90.5kJ,A选项正确(3)②假设原料气中水蒸气为xmol,C0为1mol提示:1mol氢气燃烧生成液态水时放出的热量催化剂可降低C0,与H2合成甲醇的反应活化由题意列三段式如下:为燃烧热,由反应①不能确定氢气的燃烧热,A选项错误。能,但不改变反应的焓变,B选项错误。C0(g)+H,0(g)=C02(g)+H(g)放出的能量越多,说明生成物越稳定,由反应①②根据盖斯定律,反应①-反应②得反应④:C0(g)起始/mol100知,水的热稳定性大于硫化氢,B选项错误+3H,(g)CH,0H(g)+H,0(g)△H=(-90.5+41.1)kJ/mol=转化/mol0.9Q90.90.9由题意可写出如下热化学方程式:49.4kJ/mol,C选项错误衡/mol0.1x-0.90.90.9①H,(g+20(g)=H,0(g)△H根据盖斯定律,反应④x2-反应③x3得:2C0,(g)+4H20(g)=2CH,0H(g)+302(g)△H=(-49.4×2+483.6x9x09则衡常数K=②S(s)+0(g)=S0(g△H23)kJ/mol=+1352kJ/mol>0,即该反应吸热,D选项错误。99.得=18③HSg+号o(g=S0,(g)+H,0(g△H2二、非选择题水蒸气与C0的物质的量之比为1.8:1=95。④H2(g)+S(s)=HS(g)△H4=-20.1 kJ/mol12.(1)2NH,(g)+N20.(g)3N2(g)+4H0(g)③反应温度过高,会引起催化剂失活,导致反应由盖斯定律可知,反应①+反应②=反应③+反应△H=-1096.7kJ/mol速率变慢,A选项错误。④,则有△H+AH=△H+△H4。△H,表示的是充分燃烧(2)-282.6kJ/mol适当增大压强,可加快反应速率,B选项正确(3)-5a kJ/mol1 mol H2S(g)的反应焓变;△H,+△H2表示的为充分燃烧选择合适的催化剂有利于加快反应速率,C选项1molH(g)与1molS(g)的混合物的反应焓变,因反(4)N2(g)+3H,(g=2NH,(g)△H=-92kJ/mol正确。应放热,由此可知,100℃条件下,充分燃烧1molH2(g(5)CH,0H(1)+30,(g)=2C0(g)+3H,0(1)若为恒容条件,通入氨气对反应速率无影响:若为△H=-1366.8kJ/mol与1molS(g)的混合物比充分燃烧1molH2S(g)放热恒压条件,通入氨气后,容器体积变大,反应物浓度减量多20.1kJ,C选项正确。(6)C,H,(g)+50(g)=2C0(g)+H,01)小,反应速率减慢,D选项错误。反应②中若生成固态硫,相当于生成气态硫后继△H=-2bkJ/mol④水分子首先被催化剂吸附,根据元素守恒推测续转化为固态硫,反应放热量增大,则△H减小,D选项提示:书写热化学方程式时,要注意以下细节:①第一步产生H2,第二步吸附C0产生C02,对应反应历错误表示燃烧热的热化学方程式时,对应的可燃物的化学程依次为:M+H,0一M0+H2、M0+C0一M+C02第2页


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2试题(英语))
)
英语答案)
化学答案)