高二卓越生暑假作业(五)

第1篇大家好！我是XX班的XX，非常荣幸能够在这里代表我们班获得“暑假作业优秀学生”的称号。

首先，我要感谢学校和老师们为我们提供了这个展示自己、锻炼自己的机会。

同时，也要感谢我的同学们在我暑假期间给予我的帮助和支持。

暑假是我们在学校之外，自主学习、自主成长的重要时期。

在这个暑假里，我认真完成了每一项作业，努力提高自己的学习能力和综合素质。

以下是我对暑假作业的一些心得体会，希望能与大家分享。

一、明确目标，制定计划暑假作业的完成离不开明确的目标和合理的计划。

在暑假开始之前，我首先对自己的学习目标进行了梳理，明确了要完成的作业任务。

然后，根据作业的要求和自己的实际情况，制定了详细的学习计划。

每天按照计划进行学习，确保每项作业都能按时完成。

二、合理安排时间，提高效率暑假期间，我合理安排了自己的作息时间，确保每天有足够的时间用于学习。

早晨起床后，我会先进行晨读，巩固英语单词和语文知识；上午专注于完成作业，提高学习效率；下午和晚上则进行课外阅读和拓展学习。

通过合理安排时间，我能够在保证休息的同时，高效地完成作业。

三、善于利用资源，拓展知识面暑假期间，我充分利用了学校图书馆、网络等资源，拓展了自己的知识面。

通过阅读各类书籍、观看教育视频、参加线上课程等，我不仅巩固了所学知识，还学到了许多新知识。

这些新知识为我完成作业提供了丰富的素材，也让我在学习过程中更加自信。

四、培养良好的学习习惯，提高自律能力良好的学习习惯是提高学习效率的关键。

在暑假期间，我努力培养自己的学习习惯，如按时作息、认真听课、独立思考等。

同时，我也注重提高自律能力，按照计划完成任务，不拖延、不偷懒。

这些习惯让我在完成作业的过程中更加有序、高效。

五、积极参与社会实践，锻炼综合素质暑假期间，我不仅关注学习，还积极参与社会实践，锻炼自己的综合素质。

我参加了志愿者活动，帮助社区的老人、孩子解决生活中的困难；我还参加了学校的夏令营活动，结识了新朋友，拓展了自己的视野。

2020高二物理暑假作业答案大全学物理最重要的就是理解，在把基本概念和规律掌握清楚的基础上，然后再去做题，才能理清做题思路，独立做会物理难题。

下面小编整理2020高二物理暑假作业答案，欢迎阅读。

2020高二物理暑假作业答案1【一】一、1.A2.D3.B4.C5.A6.C7.C8.C9.A10.A11.B12.D二、13.2kg14.(M-m)v0/mg;15.4∶116.9.5m/s2,4kg,2N三、17.F=150(N)18.s=156m19.26.4m20.8m/s(1+)s【二】1.C2.D3.A4.B5.D6.CD7.BC8.CD9.A10.C.11.AC12.CD13.0---2114.757015.Fcosα,Fsinα16.略17.18.0.5719.150N168N【三】题号12345答案CDABDCC题号678910答案AAACDABDC题号1112131415答案BCAADBB题号161718答案AADD21.(1)释放点到A高度hOA,则mg(hOA—R)=mvB2恰能通过点B时mg=mhOA=1.5R(2)由B到C平抛运动R=gt2soc=vtsAc=soc—R=(—1)R22.vD=20m/sμ=2/15【四】题号12345答案DCCDBDB题号678910答案DBCABCCA题号1112131415答案BDABABC题号1617答案DBC18.答案：1.92×107m【五】1.解：A、电流表显示的是有效值，示数为I=A=10A，故A错误;B、由图象知周期为0.01s，频率为周期的倒数100Hz，故B错误;C、电阻消耗的功率P=I2R=(10)2×10=1000W，故C错误;D、角速度ω=2πf=200π，所以瞬时值表达式i=10sin200πtA，故D正确;故选：D2.解：A、t=0时刻感应电动势，磁通量为零;此时线圈与中性面相互垂直;故A错误;B、t2时刻感应电动势，线圈平面与中性面垂直，磁通量为零.故B 错误.C、t3时刻线圈通过中性面，感应电动势为零，根据法拉第电磁感应定律，知磁通量变化率为零，最小，故C错误;D、t4时刻线圈中感应电动势，磁通量变化率.故D正确.故选：D3.解：A、交流电表的示数是有效值.故A错误;B、B、保险丝的额定电流，也是有效值，故B错误;C、电容器的击穿电压，是指的电压值，故C正确;D、220V动力电压是有效值，故D错误;故选：C.4.解：A、图示位置磁通量为Φ1=0，转过90°磁通量为Φ2=BS，△Φ=Φ2﹣Φ1=BS.故A错误.B、根据法拉第电磁感应定律得，平均感应电动势，△t=解得=，故B正确;C、通过电阻R的电量q=It=t=n，得到q=，故C正确;D、电流的有效值为I=，E=，电阻R所产生的焦耳热Q=I2Rt，解得Q=，故D正确.故选：BCD.5.D6.AD解：A、闭合瞬间，L相当于断路，b立刻变亮，a逐渐变亮，A正确B错误.C、闭合开关稳定时，a的亮度比b的大，因为根据I=知通过a的电流大，C错误D、电键断开，L相当于电源与两个灯泡串联，逐渐熄灭，由于稳定后a灯的电流大于b灯，所以电键断开瞬间b灯的电流比稳定时的电流大，b灯闪亮一下再熄灭，D正确故选：AD7.A变压器的构造和原理;正弦式电流的图象和三角函数表达式解：由瞬时值的表达式可知，原线圈的电压值为311V，所以原线圈电压的有效值为U1=220V根据电压与匝数成正比得：U2==55V则副线圈电流I2==5A故选：A.8.解：(1)感应电动势值为Em=NBSω=100___0.05__100V=500V由于从中性面开始计时，则瞬时值表达式为：e=Emsin(ωt)=500sin(100πt)V(2)流过电阻R的电流Im==50A通过电阻R的电流有效值I==25A.答：(1)若线圈经图示位置开始计时，线圈中感应电动势瞬时值的表达式是e=500sin(100πt)V;(2)通过电阻R的电流有效值是25A.9.解：(1)降压变压器的输出功率为：P=40×22×6=5280W降压变压器副线圈的电流：=24A，降压变压器原线圈的电流：=6A输电线损失的功率：所以输入功率：P1=5280+144=5424W(2)降压变压器原线圈电压为：=880V输电线上损失的电压为：△U=I3R=24V则发动机的输出电压为：U2=880+24=904V所以发电机原线圈电压：=226V根据电流与匝数成反比知发电机原线圈中电流为=24A，发电机内阻分压：Ur=24×1=24V电动势为：E=226+24=250V.(3)用户获得的实际功率P用=22×40×6=5280W;则输电效率η==97.3%;答：(1)发电机输出功率为5424W;(2)电动势为250V;(3)输电效率为97.3%.10.串联在外电路中的交流电流表的读数是1.4A正弦式电流的图象和三角函数表达式;正弦式电流的值和有效值、周期和频率.解：从Φ﹣t图象可以读出：Φm=1.0×10﹣2Wb，T=3.14×10﹣2s感应电动势值Em=nBSω=nωΦm，又ω=，得到Em=nΦm故电路中电流值Im===A=2A.交流电流表读数I=0.707Im≈1.4A.答：串联在外电路中的交流电流表的读数是1.4A.11.6V12w2020高二物理暑假作业答案2一、选择题1.某航母跑道长200m。

2019年高二语文下册暑假作业阅读下面文言文段，完成8～9题。

今恩足以及禽兽，而功不至于百姓者，独何与?然则一羽之不举，为不用力焉;舆薪之不见，为不用明焉;百姓之不见保，为不用恩焉。

故王之不王，不为也，非不能也。

曰：不为者与不能者之形，何以异?曰：挟太山以超北海，语人曰：我不能。

是诚不能也。

为长者折枝，语人曰：我不能。

是不为也，非不能也。

故王之不王，非挟太山以超北海之类也;王之不王，是折技之类也。

老吾老，以及人之老;幼吾幼，以及人之幼：天下可运于掌。

诗云：刑于寡妻，至于兄弟，以御于家邦。

言举斯心加诸彼而已。

故推恩足以保四海，不推恩无以保妻子;古之人所以大过人者，无他焉，善推其所为而已矣。

今恩足以及禽兽，而功不至于百姓者，独何与?权，然后知轻重;度，然后知长短;物皆然，心为甚。

王请度之!8. 下列句中加点词的解释，不正确的一项是A. 挟太山以超北海超：越过，跳过。

B. 权，然后知轻重权：用秤称一称。

C. 刑于寡妻刑：惩罚，管教。

D. 不推恩无以保妻子妻子：妻子儿女。

9. 下列句子中加点词的意义和用法，判断正确的一项是①故王之不王，非挟太山以超北海之类也∥今臣之刀十九年矣②今恩足以及禽兽，而功不至于百姓者，独何与∥舍瑟而作A. ①中两个之相同，②中两个而也相同。

B. ①中两个之相同，②中两个而不同。

C. ①中两个之不同，②中两个而也不同。

D. ①中两个之不同，②中两个而相同。

10. 下列各句中，加点词与例句中加点词的用法相同的一项是例句：轻以约，故人乐为善A. 是以君子远庖厨也B. 良庖岁更刀C. 夔于是正六律，和五声，以通八风D. 泽居苦水者，买庸而决窦二、阅读《反对党八股》选段，完成11～13题。

(12分，每小题4分)为什么语言要学，并且要用很大的气力去学呢?因为语言这东西，不是随便可以学好的，非下苦功不可。

第一，要向人民群众学习语言。

人民的语汇是很丰富的，生动活泼的，表现实际生活的。

我们很多人没有学好语言，所以我们在写文章做演说时没有几句生动活泼切实有力的话，只有死板板的几条筋，像瘪三一样，瘦得难看，不像一个健康的人。

高二我的暑假生活语文作文（经典版）编制人：__________________审核人：__________________审批人：__________________编制单位：__________________编制时间：____年____月____日序言下载提示：该文档是本店铺精心编制而成的，希望大家下载后，能够帮助大家解决实际问题。

文档下载后可定制修改，请根据实际需要进行调整和使用，谢谢!并且，本店铺为大家提供各种类型的经典资料，如办公资料、职场资料、生活资料、学习资料、课堂资料、阅读资料、知识资料、党建资料、教育资料、其他资料等等，想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by this editor. I hope that after you download it, it can help you solve practical problems. The document can be customized and modified after downloading, please adjust and use it according to actual needs, thank you!And, this store provides various types of classic materials for everyone, such as office materials, workplace materials, lifestyle materials, learning materials, classroom materials, reading materials, knowledge materials, party building materials, educational materials, other materials, etc. If you want to learn about different data formats and writing methods, please pay attention!高二我的暑假生活语文作文在日常学习、工作或生活中，大家对作文都再熟悉不过了吧，作文是通过文字来表达一个主题意义的记叙方法。

_______月_______日星期_______ 姓名：_______名家散文——王安忆《南陌复东阡》2024年高考新课标II卷现代文阅读Ⅱ的材料出自作家徐则臣的散文《放牛记》。

《放牛记》是徐则臣真实的人生经历自述，感情真挚、语言幽默。

在回忆性视角下，作家并没有将放牛当作一件苦差事，反而认为放牛满足了自己儿时的“英雄梦”。

【作品导读】一座城市，往往有它独特的性情气质，人身处其中，尤其是生于斯长于斯，无不受到它濡染、浸润。

上海旧里弄里，南陌复东阡，纵横交错，看似混杂凌乱，却有着作家王安忆美好难忘而又忧患备尝的童年记忆，海派作家王安忆的《南陌复东阡》，堪为一篇隽永深沉的美文，作家以女性特有的敏感、细腻，描写里弄风物，建筑格局，叙写少小记忆，书写缱绻情思，意到笔随，蕴含着关于童年、成长、故乡、城市、人生的诸多情思。

娓娓道来中，有人生成长普遍而深切的体验，有怀旧伤逝的无奈，有“向之所欣，俯仰之间，已为陈迹”的唏嘘感慨，有沧海桑田、时过境迁及所蕴含的独特的生命体验。

【文本研读】南陌复东阡几乎是一整个九十年代，我都是从忧患中度过。

母亲多病，一年里总有一度住在医院。

病房在新建大楼的高层，可算得上那一片街区的制高点。

走廊上有一扇侧窗，望出去是一片旧式弄堂的连绵屋瓦，夕阳的光里面，飞翔着黑色的斑点，是回家的鸽群。

写景纯用白描，寥寥几笔，即勾勒出上海里弄的初印象，俨然市井、民俗生活老照片，使人如身临其境。

“回家的鸽群”，既是眼前实景，也暗含着作者对“心灵的故乡”的思归之情，文章开篇即奠定了一种怀旧伤逝的淡淡的哀伤情绪。

许多时间，是面了这扇窗过去，有时和我妈妈，有时只我自己。

心里有一种伤痛，不知是被谁伤着了，分明是来自于无边无际的不可抗力。

于是，又为这暂时的相守感到安宁。

（不可抗力，是指生老病死，不可抗拒；“安宁”是指能与母亲相守，弥足珍贵。

）以上写作者陪母亲看病时，在医院的高楼上看到的上海弄堂的情形及感受，引出下文对上海弄堂的回忆。

【导语】知识掌握的巅峰，应该在⼀轮复习之后，也就是在你把所有知识重新捡起来之后。

这样看来，应对⾼⼆这⼀变化的较优选择，是在⾼⼆还在学习新知识时，有意识地把⾼⼀内容从头捡起，⾃⼰规划进度，提前复习。

下⾯是⽆忧考为⼤家整理的《⾼⼆下学期化学暑假作业本》，希望对你有所帮助!【篇⼀】 1.下列各有机物中，属于烃的是()A.氯丁烷B.苯C.硝基苯D.⼄醇(CH3CH2OH) 2.下列过程发⽣了化学反应的是()A.⽤⾃来⽔制蒸馏⽔B.从海⽔中获得氯化钠C.煤的⼲馏D.⽯油的分馏 3.下列有关说法正确的是()A.塑料垃圾可直接露天焚烧B.实施“禁塑令”有助于遏制⽩⾊污染C.纤维素、油脂、蛋⽩质均属于有机⾼分⼦D.聚丙烯结构简式为： 4.关于下列有机反应的说法中，不正确的是 A.CH4+Cl2CH3Cl+HCl是取代反应 B.CH4+2O2CO2+2H2O是氧化反应 C.是取代反应 D.2RCH2OH+O22RCHO+2H2O是加成反应 5.下列说法错误的是A.⼄醇分⼦中含有醛基l4可由CH4制得，可萃取碘⽔中的碘C.75%的⼄醇溶液常⽤于医疗消毒D.只⽤⽔就能鉴别苯和四氯化碳 6.下列应⽤不涉及到盐类⽔解的是 A.⽤热的纯碱清洗油污 B.氯⽓难溶于NaCl溶液中 C.明矾的净⽔作⽤ D.泡沫灭⽕器的使⽤原理 7.⾦属材料在⽇常⽣活以及⽣产中有着⼴泛的运⽤。

下列关于⾦属的⼀些说法不正确的是() A.⼯业上⾦属Mg、Al都是⽤电解熔融的氯化物制得的 B.合⾦的性质与其成分⾦属的性质不完全相同 C.⾦属冶炼的本质是⾦属阳离⼦得到电⼦变成⾦属原⼦ D.越活泼的⾦属越难冶炼 8.NA为阿伏加德罗常数，下列说法正确的是 A.标准状况下，11.2L的正戊烷所含的分⼦数为0.5NA B.28g⼄烯所含共⽤电⼦对数⽬为4NA C.1mol苯中含有碳碳双键的数⽬为3NA D.2.8g中含有的碳原⼦数为0.2NA 9.在“绿⾊化学”⼯艺中，理想的状态是反应物中的原⼦全部转化为期望的最终产物，不产⽣副产物,实现零排放。

高二语文暑假作业精选
( )(3分)
A. 类智者所施设也
B. 其一西出，寻之无所得
古之学者必有师又怪其不为之中州
C. 环之可上
D. 无土壤而生嘉树美箭
故楚之南少人而多石益奇而坚
7.下列文句中，断句正确的一项是( )(3分)
A.噫吾疑/造物者之有无久矣/及是愈/以为诚有。

B.噫/吾疑造物者之有无久矣/及是/愈以为诚有。

C.噫/吾疑造物者之有/无久矣/及是愈以为诚有。

D.噫吾疑/造物者之有无/久矣/及是愈以为诚有。

8.下列表述不正确的一项是( )(3分)
A.文章以凝练而生动的语言，描述了小石城山的奇观景物，抒发了对永州山水的无比热爱之情，同时也反映作者对皇帝的反叛之心，对归隐生活的向往。

B.永州八记生动表述了作者对自然美的感受，丰富了古典散文反映生活的新领域，从而确立了山水记作为独立的文学体裁在文学史上的地位。

C.文章第二段以议论为主，字里行间，隐隐含有对当时最高统治者昏聩不明的强烈讥讽。

D.文章的前半段描写小石城山的奇异景色，后半段即景议论，将个人的身世之感放入山水景的描写之中，情景交融，物我合一。

9.根据具体要求分别完成下列各题。

(10分)
(1)将下列句子翻译为现代汉语。

(7分)
①投以小石，洞然有水声。

(3分)
②其气之灵，不为伟人，而独为是物。

(4分)
(2)作者从哪三个方面描写了山石的瑰玮?(可自己概括，也可引用原文)(3分)。

高二语文暑假作业解析你的暑假作业写的怎么样了?准备了高二语文暑假作业解析，具体请看”(得分点：判断句，其，已)(2)昼夜不息/冬月惫甚/以水沃面/食不给/至以糜粥继之/人不能堪/仲淹不苦也(2处1分)参考译文：范仲淹两岁的时候父亲死了，他的母亲改嫁给长山朱姓人家。

年少就很有志向操守,等到长大，知道了自己原来的家世，就感激(养育之恩)哭泣着辞别了母亲，去应天府，跟随戚同文学习。

夜以继日地不休息，冬天非常疲惫的时候，就用冷水洗脸;食物也不足，甚至只能用粥维持，大多数人都受不了(严苛的待遇与环境)，范仲淹却不把这(困难)当成困苦。

考取进士及第后，当上广德军司理参军，迎回他的母亲奉养。

14.(1)忍尤而攘诟(2)载渴载饥(3)哀吾生之须臾(4)暧暧远人村(5)因人之力而敝之(6)齐彭殇为妄作15.(1)参考答案：(1)比喻、夸张(手法各1分)，用“漏天”“屋居似乘船” (诗句内容1分)形象描绘出黔中阴雨连绵、潮湿阴暗的恶劣环境(特点1分)，反衬(作用1分)。

(2)表现词人虽身遭贬谪仍老当益壮，渴望比肩前代风流人物(内容总结1分)的乐观自信(豪迈、豪放等皆可)(情感基调1分)。

16.参考答案：表面是指斯卡夫人对拉什高超画技的赞美(字面意思1分)，实则表达作者对鉴赏者对艺术不懂装懂，只求怪诞的不良风气(内容1分)的讽刺(情感1分)。

17.之前：正直(正派)、刻苦(勤奋)、才华横溢(有才能、有技巧)、热爱艺术(有追求)。

(评分标准：2点1分，任意3点2分)之后：A.利欲熏心(唯利是图、见利忘义、利令智昏，思考角度——变化的思想根源)B.阿世媚俗(投机取巧、随波逐流、同流合污、俯身从众，思考角度——放弃艺术追求)C.忘恩负义(过河拆桥、知恩不报、卸磨杀驴、兔死狗烹，思考角度——对朋友的态度变化)D. 踌躇满志(骄傲自满、自命不凡、洋洋得意、自高自大，思考角度——成名后的心态“傲然环视、踌躇满志”)E.故弄玄虚(思考角度——维护大师形象的说辞)(评分标准：1点1分，任意4点4分。

高二英语暑假作业题第二部分阅读理解(共两节，满分40分)第一节 (共15小题;每小题2分，满分30分)AWhether you’re making a one-off trip to London or you’re a regular visitor, using an Oyster travel smartcard is the easiest way to travel around the city’s public transport network.Advantages of a Visitor Oyster CardA Visitor Oyster Card is one of the best ways to pay for single journeys on the bus, tube, DLR, tram, London Over-ground and most National Rail services in London:● Save time -- your card is ready to use as soon as you arrive in London.● It’s more than 50% cheaper than buying a paper travel card or single tickets with cash.● There is a daily price cap -- once you have reached this limit, you won’t pay any more.● Enjoy special offers and promotions at leading Lond on restaurants, shops and entertainment venues -- plus discounts on the Emirates Air Line cable car and Thames Clippers river buses.Buy a Visitor Oyster CardBuy a Visitor Oyster card before you visit London and get it delivered to your home address. A card costs ￡3 (non-refundable) plus postage. Order online and arrive with your Oyster in hand! You can also buy a Visitor Oyster card from Gatwick Express ticket offices at Gatwick Airport Station and on board Eurostar trains travelling to London.To p Up(充值)Your Visitor Oyster CardYou can choose how much credit to add to your card. If you are visiting London for two days, you can start with￡20 credit. If you run out of credit, add credit at the following locations:● Touch screen ticket machines i n tube, DLR, London Over-ground and some National Rail stations.● Around 4,000 Oyster Ticket Stops found in newsagents and small shops across London.● TFL Visitor and Travel Information Centers.● Tube and London Over-ground station ticket offices.● Emirates Air Line terminals.1. What benefit will you get from a Visitor Oyster Card when travelling in London?]A. It increases your working efficiency.B. It allows you to have meals free of charge.C. It saves you money on transportation.D. It provides a 50% discount at a London shop.2. How many ways are mentioned to buy a Visitor Oyste r Card in the passage?A. 2.B. 3.C. 4.D. 5.3. Where can you top up your Visitor Oyster card?A. At Gatwick Express ticket offices.B. At a tube stationticket office.C. On the Internet.D. On Eurostar trains.BPeople are always looking for lost cities and occasionally oneis found: Borobudur in Indonesia, for example. But perhaps some of the places people look for never existed— or did they? Here are just a few famous mythical(传说中的)cities.El Dorado.El Dorado is a story that began in 1537, when Spanish explorers found the Muisca people in the mountains of what is now Colombia. They heard the story of a man who covered himself with gold and dived into a lake. Then people began to talk of El Dorado –‘the golden man’Soon people started to think of El Dorado a s a place, too一 a city of gold and amazing riches. Nowadays, the name ’El Dorado’ is still used to mean‘a place where you can get rich quickly.’AtlantisThere was once an island in the middle of the Atlantic Ocean. It was the mythical island of Atlantis. The people of the island were very rich, thanks to the natural resources(资源)on their island. For hundreds of years, they lived simple lives. But slowly they began to change. They started to want power. So the gods decided to destroy Atlantis. Suddenly, the island and its people were swallowed(淹没)by the sea and were never seen again.ShambhalaIn Tibetan Buddhist tradition, Shambhala is a mystical (神秘的)country that is hidden somewhere behind the Himalayas. Shambhala is a word from an old language that means‘place of peace’or‘place of happiness’. It is said th at there is no war in Shambhala, and in the future , when the world is full of war, a huge army will come out of Shambhala, destroy the world’s bad rulers, and start a new Golden Age. Some people say this will hap pen in 2424.4. Nowadays,‘El Dorado’means‘______’A. Colombia.B. the golden man.C. a place of great wealth.D. the city with mountains.[来源:学*科*网]5. Atlantis was destroyed by_____A. the gods.B. its people.C. its powerful enemies.D. its neighboring country.6. What will probably happen in 2424 according to the last paragraph?A. The Himalayas will disappear.B. The world will be full of peace.C. Shambhala will save the world.D. There will be a war in Shambhala.7. What would be the best title for the text?A. Rich lands .B. Mythical citiesC. Famous tourist attractions.D. Newly-found ancient countries.CPsychologists have discovered that even the most independent-minded of us will conform tosocial pressure when we are with a group of people. In oneclassie experiment, people were showna vertical line and asked to find a line of identical lengthfrom a selection of three.You might think that this is an absurdly easy task, and when people perform it by themselvesthey do it very well. However, psychologists have discoveredthat we are very easily swayed by the opinions of other people when wedo this task in a group. In one study, a group of three peoplewas set up,where two of the people were confederates(同伙)of the experimenter.When the confederates deliberately gave wronganswers,people were often swayed to give the wrong answer also. In fact, 75% of people gave at least one wrong answer, with some people conforming to peer pressure on every occasion.But why do people conform in this way? In an easy task like this, it seems that people donot want to step out of line with the prevailing opinion of the group. On more difficult tasks, people also conform because they lose 〔onfidence in their own ability to make decisions and preferto trust the majority opinion instead.A typical example of this kind of conformity arises when we come across people in distress.Would you help a woman who has been attacked in the street?It turns out that you are much more likely to go to her assistance if you are alone.When other people are also around,a diffusion ofresponsibility occurs. People are paralysed into inaction, because everyone assumes that someone else will go to the woman' s assistance.8. In Paragraph 1, the underlined word "conform" probablymeans“ ”A. seek independenceB. disobey ordersC. seek pleasureD. follow what others do9.What is the purpose of the experiment described in Paragraph 2? ToA. explain why people would be influenced by the opinions of othersB. prove that people are easily influenced by the opinions of othersC. train the confederates of the experimenter as independent-minded[来源:学+科+网Z+X+X+K]D. describe how people would be influenced by the opinions of others10. In the last paragraph, according to the author,why wouldn’t one help the woman ?He .A. thinks he has no responsibilities to give a handB.thinks he has has nothing to do with itC. is too shy to give his helping hand D .thinks someone elsewill offer assistance1l.What method does the author mainly use to develop the text?A. Giving examples.B. Cause-effect analysis.C. Comparative analysis.D. Process analysis.DA group of kids at McIntyre Elementary School, in Pittsburgh, Pennsylvania, have created a special bench to make sure their fellow classmates aren’t left out on the playground. Called the “Bud dy Bench”, students can use the seat as a safe and supportive place to let others know they’d like to be included in playtime, but may be too shy to ask.The concept of the Buddy Bench is simple: Students who want t o partake in playground games and activities, but may feel hesitant, can take a seat, which signifies(表明) to other children on the playground that they may need something extra to encourage them to participate.The idea for the bench came about last year, when Farrell,school counselor at McIntyre Elementary, was conducting a leadership group to help students overcome shyness and gain confidence. Fourfourth-grade students came up with the idea for the Buddy Bench in this workshop, and worked with Farrell to draft a letter to present to the Parent Teacher Staff Organization to make the bench a reality. The PTSO approved the students’ proposal, and installed(安装) a bright metal bench with a cheerful sign that reads “Buddy Bench” on the school’s playground.Since it wa s installed on Nov. 16, the bench has been effective. The simple concept has resonated with(引起共鸣) the students, andalready has created a better environment within the school community.“Each day, I go to see the buddy bench working,” Farrell said. “The lessons they are learning now will benefit them their entire lives. It is simply a beautiful example of kids wanting to be kind and continue to be kind every day.”12. Who is Buddy Bench created for?A. Students who love games and activities.B. Students who want and continue to be kind.C. Students who are in Farrell’s leadership group.D. Students who are left out on the playground.13. Who thought of the idea for the Buddy Bench?A. Farrell.B. The PTSO.C. Four students.D. Some parents.14. What does the underl ined word “they” in the last paragraph refer to?A. The PTSO.B. The workshop members.C. Buddy Bench users.D. Farrell and teachers.15. Which of the following statements can show “the bench has been effective”?A. More and more creative ideas have come up.B. The workshop kids have set a good example.C. The PTSO has decided to provide more buddy benches.D. Some shy students have found friends on the playground.第二节 (共5小题;每小题2分,满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

快乐暑假作业：高二化学暑假作业练习为大家整理的快乐暑假作业：高二化学暑假作业练习文章,供大家学习参考！更多最新信息请点击高二考试网一、选择题1.A.将浓硝酸保存在无色玻璃瓶中B.蒸馏时，应使温度计水银球靠近蒸馏烧瓶支管口C.加热后的试管不能立即用冷水冲洗，防止骤冷炸裂D.进行蒸发时蒸发皿放在铁圈上直接加热，并用坩埚钳夹取2. 下列读数不正确的是( )A.用广泛pH试纸测得某溶液的pH为3.4B.用10 mL 量筒量取8.8 mL NaOH溶液C.用托盘天平称量7.9 g NaCl固体D.用酸式滴定管量取18.00 mL HCl3. 分离NaCl、FeCl3和BaSO4的混合物，应选用的一组试剂是( )A. H2O、AgNO3、HNO3B. H2O、NaOH、HNO3C. H2O、NaOH、HClD. H2O、KOH、HNO3MnO2和CuO对H2O2分解反应的催化能力大小的实验中若催化剂的质量均控制在0.1 g,6%的H2O2溶液均取5 mL，可选择的实验装置是( D )5. 实验室常用饱和的NaNO2与NH4Cl溶液反应制取少量的氮气。

反应的化学方程式如下：NaNO2 + NH4Cl NaCl + N2↑ + 2H2O则氮气的发生装置与下列气体中发生装置相同的是( )A.H2B.O2C.Cl2D.CO2l溶液中，产生的气体是( )A.O2和H2B.只有H2C.只有NH3D.H2和NH37. 用一定量的铁与足量的稀硫酸及足量的CuO制单质铜，有人设计了以下两种方案：①Fe H2 Cu;②CuO CuSO4 Cu。

若按实验原则进行操作，则两者制得单质铜的质量比较正确的是( )A.①多B.②多C.相等D.无法比较. 甲、乙、丙、丁分别是Al2(SO4)3、FeSO4、NaOH、BaCl2四种物质中的一种。

若将丁溶液滴入乙溶液中，发现有白色沉淀生成，继续滴加则沉淀消失，丁溶液滴入甲溶液时，无明显现象发生。