江苏省吴江汾湖高级中学2020-2021学年高二第二学期阶段性教学质量检测英语试卷 含答案
江苏省各地学校2020-2021学年高二下学期4月英语试卷精选汇编：读后续写专题
江苏省2020-2021学年下学期高二4月英语试卷精选汇编读后续写专题江苏省扬州市公道中学2020-2021学年高二下学期第二次学情测试英语试卷第二节读后续写（满分25 分）阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。
I was lucky to have an interview with a famous international bank after graduation. I really appreciated this chance. So I spent a lot of time preparing very carefully. I prepared for all the possible questions ahead. As a result, I got the job. While my classmates were still struggling to get a job, I had succeeded in getting one, which made me feel very proud of myself.After one month of hard training, today was my first day at work to show the results of the training. I got up as usual, but I decided to skip doing exercise as I did not want to take the risk of arriving at the office late on my first day. I went through my morning routine and spent a lot of time deciding what to wear. I definitely wanted to make a great impression right from the start. Finally, I settled on the white suit with a tie.I waved to say goodbye to my mother and set off cheerfully towards the bus stop. But I saw a bus leaving the stop just as I turned around the corner. Now I would have to wait for another 15 minutes, even though time was very precious. I stood there patiently.15 minutes passed and then 30minutes, and there was no sign of the bus, Now what could I do? I had to reach the office on time. I saw a motorcycle approaching, but as I tried to stop it, the driver sped on without even a glance. It was then that a car stopped near me and a man waved to me. He said, "Aren't you working at the bank at Nariman Point? My office is in the same building. Can I give you a ride?”I was uncertain at first but then forced myself to get in as I was going to be late. Gradually, I realized that we were not on the familiar route to my office. I asked the man to stop the car, but he did not listen to me and told me to shut up.注意: 1.续写词数应为150 左右；2.请按如下格式在答题卡的相应位置作答。
吴江汾湖高级中学2020-2021学年高二第二学期阶段性教学质量检测物理试题及答案
2020-2021学年第二学期汾湖高级中学阶段性教学质量检测高二物理试卷试卷分值：100分考试用时：75分钟一、单项选择题（共11题，每题4分，共计44分，每题只有一个选项最符合题意）1.关于简谐运动，下列说法正确的是A.简谐运动一定是水平方向的运动B.所有的振动都可以看做是简谐运动C.物体做简谐运动时一定可以得到正弦曲线形的轨迹线D.只要振动图象是正弦曲线，物体一定做简谐运动2.如图所示，一轻质弹簧下端系一质量为m的书写式激光笔，组成一弹簧振子，并将其悬挂于教室内一体机白板的前方。
使弹簧振子沿竖直方向上下自由振动，白板以速率v水平向左匀速运动，激光笔在白板上留下如图所示的书写印迹，图中相邻竖直虚线的间隔均为未标出，印迹上P、Q两点的纵坐标为和忽略空气阻力，重力加速度为g，则A.该弹簧振子的振幅为B.该弹簧振子的振动周期为C.激光笔在留下P、Q两点时加速度相同D.激光笔在留下PQ段印迹的过程中，弹簧弹力对激光笔做功为3.如图所示，乙图中图象记录了单摆中摆球的动能、势能随摆球位置变化的关系，下列关于图象的说法正确的是A.a图线表示势能随位置的变化关系B.b图线表示机械能随位置的变化关系C.c图线表示动能随位置的变化关系D.图象表明摆球在势能和动能的相互转化过程中机械能不变4.如图所示是观察水面波衍射的实验装置，AC和BD是两块挡板，AB是一个孔，O是波源．图中已画出波源所在区域的传播情况，每两条相邻波纹图中曲线之间距离表示一个波长；关于波经过孔之后的传播情况，下列描述中不正确的是A.此时能明显观察到波的衍射现象B.水波通过挡板前后波纹间距离相等C.如果将孔AB扩大，有可能观察不到明显的衍射现象D.如果孔的大小不变，使波源频率增大，能更明显观察到衍射现象5.一根粗细均匀的绳子，右侧固定，使左侧的S点上下振动，产生一列向右传播的机械波，某时刻的波形如图所示。
下列说法中正确的是A.左侧的质点重复右侧的质点的振动过程B.波的传播速度逐渐减小C.S点振动的频率逐渐增大D.波的传播方向与质点的振动方向相同6.2019年4月10日人类第一次发布了世界上首张黑洞图像，利用了射电望远镜对电磁波的捕捉。
吴江汾湖高级中学2020-2021学年高二第二学期阶段性教学质量检测化学试题及答案
2020—2021学年第二学期汾湖高级中学阶段性教学质量检测高二化学试卷试卷分值：100分考试用时：75分钟可能用到的相对原子质量：H：1K:39Zn：65Ag:108N:14O:16一、单项选择题：本题包括13小题，每题3分，共计39分。
每题只有一个选项符合题意。
1．页岩气的主要成分为CH4，是我国能源新希望。
下列说法正确的是( )A．页岩气属于新能源，子孙万代可长久开采B．处理后的页岩气作为能源比煤作为能源对环境的影响大C．甲烷完全燃烧过程中，C—H键断裂而释放出热能D．利用甲烷、氧气、稀硫酸可设计燃料电池2．下面有关电化学的图示，完全正确的是( )3．已知某化学反应A2(g)＋2B2(g)===2AB2(g)(AB2的分子结构为B—A—B)的能量变化如图所示，下列有关叙述中正确的是( )A．该反应的进行一定需要加热B．该反应的ΔH＝－(E1－E2)kJ·mol－1C．该反应中反应物的键能总和大于生成物的键能总和D．断裂1molA—A键和2molB—B键放出E1kJ能量4.下列说法正确的是( )A．在相同条件下，将等质量的硫蒸气和硫固体分别完全燃烧，后者放出的热量多B．由“C(s，石墨)===C(s，金刚石) ΔH＝＋1.9kJ·mol－1可知，金刚石比石墨稳定C．在稀溶液中：H＋(aq)＋OH－(aq)===H2O(l) ΔH＝－57.3kJ·mol－1，若将含0.5molH2SO4的浓硫酸与含1molNaOH的溶液混合，放出的热量大于57.3kJD．在25℃、101kPa条件下，2gH2完全燃烧生成液态水放出285.8kJ热量，故氢气燃烧的热化学方程式可表示为2H2(g)＋O2(g)===2H2O(l) ΔH＝－285.8kJ·mol－15．下列叙述与电化学腐蚀有关的是( )A．炒过菜的铁锅不及时清洗易生锈B．在空气中金属镁、铝都具有较好的抗腐蚀性C．红热的铁丝与水接触时，表面形成了蓝黑色的物质D．把铁片投入氯化铜的溶液中，在铁表面上附着一层红色的铜6．合成氨是人类科学技术发展史上的一项重大突破。
江苏省苏州市吴江区汾湖高级中学2023-2024学年高三下学期联合考试英语试题含解析
2024年高考英语模拟试卷注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．第一部分（共20小题，每小题1.5分，满分30分）1．—What about going abroad for further study?—Great, but I never expected ______ a chance for me before.A．there to be B．there beingC．it to be D．it being2．Taught in a more professional way, you _________ the swimming skill much better.A．might master B．would have masteredC．can have mastered D．could master3．He has written two articles for the journal，one to be published in this issue，the other to___________ in the next. A．turn out B．come outC．bring out. D．leave out4．The hall of the school can one thousand people.A．sit B．seat C．be sat D．be seated5．—In the UK，some people equate life experience with the number of stamps in their passports.—That’s why they all agree that they ________ the “travel bug”．A．catch B．caughtC．have caught D．are to catch6．I'd advise anyone to put aside a proportion of their earnings — ____________.A．nothing great is easy B．nothing comes from nothingC．a bad penny always turns up D．a penny saved is a penny earned7．— You could always put the decision off a little bit longer.— __________ If I leave it much longer I might miss my chance.A．That’s reasonable.B．Isn’t it a good idea?C．Do you think so? D．I can’t agree more.8．He messed the project up, but he behaved as if nothing ______.A．had happened B．happenedC．would happen D．would have happened9．Children under fifteen are not permitted to see such kind of film _________ is bad fortheir mental development. A．as B．whatC．which D．that10．I like these English songs and they ________ many times on the radio.A．taught B．have taughtC．are taught D．have been taught11．.— I'm really angry at my naughty son. He never listens to me and often is against me.— ____, Ellen. Things will go out.A．It doesn't matter B．Take your timeC．Don't mention it D．Take it easy12．Mary seems ________ the bad news, for she looks nice and happy.A．not to have learned B．not to be hearingC．not having learned D．not to be heard13．Since the match is over, we can ____by travelling and stop thinking about basketball.A．dive in B．switch offC．pull out D．split up14．Mark drives his car too fast and, what’s more, very carelessly,worries his mother.A asA．what B．it C．which15．The general secretary stressed that what he had just said was only his _________view, not official intentions. A．private B．separate C．personal D．single16．AlphaGo’s beating Go grandmaster Lee Sedol 4-1 has ________ an international debate about whether robots will completely take the place of humans.A．give off B．work outC．set off D．put out17．– Where did you get to know her?-- It was on the farm ___ we worked.A．that B．there C．which D．where18．—Y ou shouldn’t have treated me that way.My heart is broken.—I’m sorry,Paul.I didn’t mean you.A．hurting B．to hurt C．hurt D．having hurt19．They are determined to go into the dark cave, ________ my warning of danger.A．regardless of B．because ofC．apart from D．instead of20．—It’s so humid these days!—Don’t worry! The rain ________ to stop from tomorrow.A．will expect B．expectsC．will be expected D．is expected第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
江苏省下学期高二4月英语试卷精选汇编：语法填空专题
江苏省2020-2021学年下学期高二4月英语试卷精选汇编语法填空专题江苏省扬州市公道中学2020-2021学年高二下学期第二次学情测试英语试卷第二节（共10小题，每小题1分，共10分）阅读下列材料，在空白处填入1个适当的单词或用括号内单词的正确形式。
I was excited to take my rescue Beagle（比格犬）to the river the other day, as it's within walking distance of our new home. 56 (spend)her first three years in a cage, Georgie had never seen a body of water, and I wanted to get there before sunset to watch her experience it.I was growing 57 (increasing)impatient about all the stops her little Beagle nose required. She inspected the grass, dirt, and trees, and licked whatever 58 (stick)to the road. These were all new 59 (discover) for her, and she took her time studying them.When I accepted it was fruitless to hurry her along, I whipped out my cell phone and began texting. I thought that I needed something to do while Georgie was slowing us down. Then, 60 some reason, I heard the cicadas（蝉），and I remembered the sound of cicadas is my favorite sound. That awakened something 61 (bury) within me that longed for the simple pleasures 62 had been replaced by technology.I made a 63 (consciousness) decision to be present, and to enjoy the journey to the river Just like Georgie. Now, I admired the flowers and the winding ivy（常青藤）on our path. I smelled the grass and the flowers, and the dirt and the air. I treasured each one equally, as if discovering them for the first time.As we neared our destination, 1 realized something even 64 （much）important: It di dn’t matter if we even reached the river, Why must there always be a destination? Georgie had no idea that we had a destination. She was present for the journey, and she completely enjoyed every bit of that sweet experience. There was no race 65 no finish line.Now I’m not sure who rescued whom.语法填空56．Having spent 57．increasingly 58．was stuck 59．discoveries60．for 61．buried 62．that/which 63．conscious 64．more 65．and江苏省吴江汾湖高级中学2020-2021学年高二下学期阶段性教学质量检测英语试题第二节：语法填空（共10小题；每小题1.5分，满分15分）AirCar is the latest generation flying car（56）______ transforms from road vehicle into air vehicle in less than 3 minutes. Useful for leisure and self-driving（57）______ （journey），the vehicle can go from driving to lying mode with the click of a button. The fifth generation flying car designed by Professor Stefan Klein（58）______ （complete）two flight tests at Piestany airport in Slovakia so far.The two-seat AirCar（59）______ （weigh）1，100kg and can carry an additional load of 200kg per flight.（60）______ （power）by a BMW 1.6L engine,the car-plane has an effective power output of 140HP. The estimated travel range of the vehicle is 1，000km and the flight（61）______ （consume）is 18 liters（升）per hour. AirCar can transform from a ground-based vehicle to aircraft with its speed （62）______ （reach）up to 200 km/h. But most importantly, the stability and controllability of the AirCar is（63）______ （access）to any pilot."With AirCar you will arrive at your destination（64）______ the trouble of getting a ride to airport and passing through commercial security. You can drive your AirCar to the golf course, the office, the shopping centre or your hotel and park（65）______ in a normal parking space," said Anton Zajac,Klein Vision's co-founder, investor and pilot.第二节：语法填空56.that 57. journeys 58. has completed 59.weighs 60. Powered 61.consumption 62. reaching 63.accessible 64.without 65. it江苏省高邮临泽中学2020-2021学年高二下学期四月学情质量检测英语试卷第二节．语法填空（共10小题；每小题1分，满分10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。
江苏省吴江汾湖高级中学2020-2021学年高二语文下学期5月阶段性教学反馈训练试题
江苏省吴江汾湖高级中学2020-2021学年高二语文下学期5月阶段性教学反馈训练试题试卷分值：150分考试用时：150分钟一、现代文阅读 (27分)(一)现代文阅读Ⅰ(本题共4小题，15分)阅读下面的文字，完成1～4题。
材料一:比特币是一种网络虚拟货币，可以购买现实生活中的物品。
它的特点是分散化、匿名、只能在数字世界使用，不属于任何国家和金融机构，并且不受地域的限制。
区块链，是比特币领域的一个重要概念，它本质上是一个去中心化的数据库。
区块链是分布式数据存储、点对点传输、共识机制、加密算法等计算机技术的新型应用模式，所谓“共识机制”，是区块链系统中实现不同节点之间建立信任、获取权益的数学算法。
狭义来讲，区块链是一种按照时间顺序将数据区块以顺序相连的方式组合成的一种链式数据结构，并以密码学方式保证的不可篡改和不可伪造的分布式账本。
广义来讲，区块链技术是利用块链式数据结构来验证与存储数据、利用分布式节点共识算法来生成和更新数据、利用密码学的方式保证数据传输和访问的安全、利用由自动化脚本代码组成的智能合约来编程和操作数据的一种全新的分布式基础架构与计算方式。
（摘编自网络）材料二：工信部信息中心2018年发布的《2018年中国区块链产业白皮书》显示，区块链正在成为全球技术发展的前沿阵地，如美国正在不断完善与区块链技术相关的公共政策；欧盟正努力把欧洲打造成全球发展和投资区块链技术的领先地区，加快研究国际级“区块链标准”。
从国内来看，国务院2016年印发《“十三五”国家信息化规划》，将区块链技术列为战略性前沿技术。
2018年6月，工信部印发《工业互联网发展行动计划（2018-2020年）》，鼓励区块链等新兴前沿技术在工业互联网中的应用研究与探索。
浙江大学区块链研究中心常务副主任蔡亮教授表示，西方国家区块链的技术发展重点是公有链，应用和产业发展重点是基于公有链的金融创新，而中国区块链技术发展的重点是自主可控的联盟链，应用和产业发展的重点是区块链如何服务于产业经济、政府服务和社会治理。
苏州市2020-2021学年高二下学期期末学业质量阳光指标调研 英语试题(含答案)
苏州市2020-2021学年高二下学期期末学业质量阳光指标调研英语试题第I卷选择题（共95分）第一部分听力（共两节，满分30分）做题时，先将答案标在调研卷上。
录音内容结束后，你将有两分钟的时间将调研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，并标在调研卷的相应位置。
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。
1. What is the man's name?A.Peter.B.Pratt.C.Right.2. What will the woman do?A.Wait for that car.B.Stay in the house.C.Drive by herself.3. What does the man mean?A. He makes an excuse.B.He makes an apology.C.He makes a promise.4. What made the woman miss practice?A.Conducting a wedding.B.Visiting her relatives.C.Taking a trip home.5.What does the woman think of her new teacher?A.Poorly-organized.B.Uninspiring.C.Inexperienced.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，并标在调研卷的相应位置。
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。
2025届江苏省苏州市吴江汾湖高级中学化学高二下期末学业质量监测模拟试题含解析
2025届江苏省苏州市吴江汾湖高级中学化学高二下期末学业质量监测模拟试题注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．一、选择题(共包括22个小题。
每小题均只有一个符合题意的选项）1、常温下，体积相同，pH相同的盐酸和醋酸两种溶液中，下列两者的量相同的是A．电离程度B．酸的物质的量浓度C．与Zn反应开始时的反应速率D．与足量的Zn反应产生H2量2、某有机物分子中有a个-CH3，b个-CH2-，c个，则可连接的羟基的个数为( )A．2b+3c-a B．a+b+c C．c+2-a D．b+c+2-a3、下表列出了某短周期元素R的各级电离能数据(用I表示,单位为kJ·mol-l).电离能I1I2I3I4……E 740 1500 7700 10500 ……下列关于元素R的判断中一定正确的是A．R的最高正价为+3价B．R元素的原子最外层共有4个电子C．R 元素基态原子的电子排布式为1s22s2D．R元素位于元素周期表中第ⅡA族4、下列物质溶于水中，因水解而使溶液呈碱性的是A．NaO B．NaOH C．Na2SO4D．Na2CO35、下列化合物中，只有在水溶液中才能导电的电解质是A．NaCl B．CH3CH2OH(酒精)C．H2SO4D．CO26、在苯的同系物中.加入少量酸性高锰酸钾溶液.振荡后褪色.正确的解释是()A．苯的同系物分子中.碳原子数比苯多B．苯环受侧链影响.易被氧化C．侧链受苯环影响.易被氧化D．由于侧链与苯环的相互影响.使侧链和苯环均易被氧化7、下列说法不正确的是()A．金属钠与氧气反应的产物与氧气的用量无关B．NaHCO3的热稳定性大于Na2CO3C．漂白粉漂白织物利用了物质的氧化性D．1 mol Na2O2固体中含离子总数为3N A8、根据下表中实验操作、现象得出的结论正确的是A．A B．B C．C D．D9、三氟化氮(NF3)是微电子工业中优良的等离子刻蚀气体，它在潮湿的环境中能发生反应：3NF3+5H2O=2NO+HNO3+9HF，下列有关该反应的说法正确的是A．NF3是氧化剂，H2O是还原剂B．HF是还原产物C．还原剂和氧化剂的物质的量之比是2:1 D．NF3在潮湿的空气中泄漏会产生红棕色气体10、下列说法不正确的是A．NH4+与H3O+中心原子的价层电子对数相同B．BF3中硼原子的杂化类型与苯中碳原子的杂化类型相同C．SO2和O3等电子体，但两者具有不同的化学性质D．HOCH2CH(OH)CH2OH和CH3CHClCH2CH3都是手性分子11、已知：将Cl2通入适量KOH溶液，产物中可能有KCl、KClO、KClO3，且()()c Clc ClO--的值与温度高低有关。
江苏省苏州市吴江区汾湖中学2020┄2021届高三下学期期初考试试题英语
第I卷（选择题，共85分）第一部分听力（共两节，满分20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）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。
1. What are the speakers talking about？A. A band.B. A song.C. An album.2. Where did the woman probably go today？A. T o the bank.B. To the post office.C. T o the supermarket.3. Why did the man move to the present house？A. It’s cheap and large.B. It’s near his workplace.C. It’s beautiful outside.4. What are the speakers talking about？A. A running tiger.B. A book about legends.C. A tourist attraction.5. What made the woman surprised？A. The man’s diet.B. The man’s lifestyle.C. The man’s weight loss.第二节（共15小题）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至7题。
江苏省吴江汾湖高级中学2020-2021学年高二第二学期阶段性教学质量检测英语试卷 含答案
2020-2021学年第二学期汾湖高级中学阶段性教学质量检测高二英语试卷试卷分值：150分考试用时：120分钟第一部分听力（共两节，满分30分）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。
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。
1. When is the woman too busy to meet the man?A. On Monday.B. On Tuesday.C. On Wednesday.2. What does the woman want to do well in?A. Plan making.B. Public speaking.C. Face-to-face conversations.3. How does the man feel about the grade?A. Amazed.B. Disappointed.C. Confused.4. What can the website help people find?A. Part-time jobs.B. Cute pet photos.C. Animals to care for.5. Where might the speakers be?A. At a concert hall.B. At a ticket office.C. At a bank.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。
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. What kind of power does the woman prefer?A. Solar.B. Nuclear.C. Wind.7. What is the weather like today?A. Cloudy.B. Windy.C. Sunny.听第7段材料，回答第8至10题。
2020-2021学年江苏省苏州市吴江汾湖高级中学高二第二学期阶段性教学反馈训练 物理
2020-2021学年江苏省苏州市吴江汾湖高级中学高二第二学期阶段性教学反馈训练物理2021.05一．单项选择题（每一小题4分，共14题，总分56分）1． M和N是两个原来都不带电的物体，它们互相摩擦后M带1.6×10－19 C正电荷，对此，下列判断中正确的是( )A．在摩擦前M和N的内部没有任何电荷B．摩擦的过程中电子从N转移到MC．N在摩擦后一定带1.6×10－19 C的负电荷D．M在摩擦过程中失去1.6×10－19个电子2．A、B、C三点在同一直线上，AB∶BC＝1∶2，B点位于A、C之间，在B处固定一电荷量为Q的点电荷。
当在A处放一电荷量为＋q的点电荷时，它所受到的电场力为F；移去A处电荷，在C处放一电荷量为－2q的点电荷，其所受电场力为( )A．－F2 B.F2C．－F D．F3．如图3所示，内壁光滑绝缘的半球形容器固定在水平面上，O为球心，一质量为m，带电荷量为q的小滑块，静止于P点，整个装置处于沿水平方向的匀强电场中。
设滑块所受支持力为F N，OP与水平方向的夹角为θ。
下列关系正确的是( )A．qE＝mgtan θB．qE＝mg tan θC．F N＝mgtan θD．F N＝mg tan θ图 34 两个相同的负电荷和一个正电荷附近的电场线如图4所示，d是两负电荷连线的中点，c、d两点到中间负电荷的距离相等，则( )A．a点的电场强度比b点的小B．a点的电势比b点的低C．c点的电场强度比d点的小D．c点的电势比d点的高图45.如图5所示，带正电的金属球A，放置在不带电的金属球B附近，M、N是金属球B表面上的两点．下列说法中正确的是( )A．M点处带正电，N点处带负电，且M点电势高于N点电势B．M点处带正电，N点处带负电，且M点电势等于N点电势C．M点处带负电，N点处带正电，且M点电势高于N点电势D．M点处带负电，N点处带正电，且M点电势等于N点电势图 56．一电子在电场中由a点运动到b点的运动轨迹如图6虚线所示，图中的平行实线可能是电场线，也可能是等势面，下列说法正确的是( )图6A．不论图中实线是电场线还是等势面，a点的电势都比b点的电势低B．不论图中实线是电场线还是等势面，a点的场强都比b点的场强小C．如果图中实线是等势面，电子在b点动能较小D．如果图中实线是电场线，电子在a点动能较大7．如图7所示，平行板电容器与电源相接，充电后切断电源，然后将电介质插入电容器极板间，则两板间的电势差U及板间场强E的变化情况为( )A．U变大，E变大B．U变小，E变小C．U不变，E不变D．U变小，E不变图 78．在研究影响平行板电容器电容大小因素的实验中，一已充电的平行板电容器与静电计连接如图8所示．现保持B板不动，适当移动A板，发现静电计指针张角减小，则A板可能是( )图8A．右移 B．左移 C．上移 D．下移9．如图9所示，两平行的带电金属板水平放置．若在两板中间a点由静止释放一带电微粒，微粒恰好保持静止状态，现将两板绕过a点的轴(垂直于纸面)逆时针旋转45°，再由a点由静止释放一同样的微粒，该微粒将( )图9A．保持静止状态B．向左上方做匀加速运动C．向正下方做匀加速运动D．向左下方做匀加速运动10．在某匀强电场中有M、N、P三点，在以它们为顶点的三角形中，∠M＝30°、∠P＝90°，直角边NP的长度为4 cm。
江苏省吴江汾湖高级中学2020-2021学年高二英语假期自主学习竞赛试题
江苏省吴江汾湖高级中学2020-2021学年高二英语假期自主学习竞赛试题试卷分值：150分考试用时：120分钟第一卷（共95分）第一部分：听力（共两节，满分30分）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。
1. Why did the woman miss the music program?A. She had to meet her students.B. She was not interested in it.C. She was busy with her work.2. What’s the woman’s attitude?A. Pleased.B. Impatient.C. Uncertain.3. What does the man think of the book?A. There’s nothing interesting in it.B. It actually is appealing to him.C. It should be lent to more people.4. What are they probably doing?A. Making a call.B. Queuing up.C. Occupying seats.5. What are the speakers talking about?A. Things to wear.B. The warm weather.C. Clothing materials.第二节（共15小题；每小题1.5分，满分22.5分）听第6段材料，回答第6至7题。
6. What does the man think of getting a raise?A. It’s almost impossible.B. It will come true soon.C. It’s not been decided7. What does the man want to do?A. Taking on one more job.B. Hunting for another job.C.Staying in the company.听第7段材料，回答第8至10题。
高二教学质量检测英语考试(2020-2021学年度)
高二教学质量检测英语考试（2020-2021学年度）本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
第Ⅰ卷l至12页，第Ⅱ卷13至16页。
满分为150分。
考试用时为120分钟。
第Ⅰ卷(共105分)注意事项：1．答第Ⅰ卷前，考生务必将自己的姓名、准考证号、考试科目涂写在答题卡上。
2．每小题选出答案后，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。
不能答在试卷上。
第一部分听力(共两节，满分30分)该部分分为第一、第二两节。
注意：回答听力部分时，请先将答案标在试卷上。
听力部分结束前，你将有两分钟的时间将你的答案转涂到客观题答题卡上。
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。
1．Where are the two speakers?A．In a store． B．In a hotel． C．At home．2．How long does the man have to wait for the next train?A．5 minutes. B．45 minutes． C．50 minutes．3．What does the woman suggest they should do?A．Travel on a later flight．B．Check the timetable．C．Go to the airport．4．Whom are they talking about?A．A pretty girl． B．An unknown man． C．A schoolmate 5．When will the man buy the coat?A．Hard to say． B．Tomorrow． C．Now．第二节(共15小题；每小题1.5分。
2020-2021学年吴江市第二高级中学高三英语模拟试题及答案解析
2020-2021学年吴江市第二高级中学高三英语模拟试题及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AFor some people, there’s no better companion than mans best friend-a dog. This four-legged pet can bring comfort and joy and provide much- needed exercise for you when it needs walkies! This probably explains why dog ownership increased last year because people spent more time at home during he CovID-I9 lockdown.However, as demand for a new dog increased, so did the price tag. Popular breeds, such as Cockapoos and Cocker Spaniels, saw even sharper price increases, and puppies have been selling for $3,000 or more.Animal welfare charities fearthat high prices could encourage puppy farming, smuggling (走私) or dog theft. An investigation found some breeders have been selling puppies and kittens on social media sites--something charities have called “extremely irresponsible”.But despite some new owners purchasing a dog legally, maybe from a rescue center or registered breeder, they’ve proved to be ill-prepared for life with a new pet, and the pet itself has found it hard tocome to terms withlife in a new home.Looking to the future, there are concerns about the welfare of these much-loved pets. Lan Alkin manager of the Oxfordshire Animal Sanct uary in the UK, notes: “At the moment, the dogs are having a great time, but separation anxiety could still surface when people go back to work.” And Cliare Calder from the UKs Dogs Trust rescue charity says, “The economic situation also means that some people may find they can’t afford to look aftera dog.” The message is not to buy a dog in haste and to pick one that fits into our lifestyle.1. The greater demand for dogs can cause the following problems except ________.A. illegal trade of dogsB. less dog farmingC. high prices of dogsD. online sale of dogs2. What does the underlined phrase"come to terms with"in paragraph 4 mean?A. Fit in withB. Go in forC. Make up for.D. End up with3. What can we learn from the last paragraph?A. Despite the problems, dogs are living happily.B. The writer has a positive attitude towards dogs future.C. Experts are worried that dogs will be unaffordable to people.D. The writer advises people to think twice before keeping dogs as pets.BA new study finds almost one third of the world’s population is overweight. Since 1980, obesity rates(肥胖率)in children and adults have doubled in 73 countries, making people more worried. And rates are increasing in many other countries. Obesity is increasing faster in children than adults in many nations, including Algeria, Turkey and Jordan, the report said. But the world's weight problem is growing in both rich and poor countries alike. Researchers say an increasing number of people are dying of related health problems in what they called a "disturbing global public health problem."Researchers studied health information from 1980 through 2015. They examined obesity rates, average weight gain in 195 countries. They found that obesity rates are three times greater among youth and young adults in countries like China, Brazil and India. Almost 108 million children and more than 600 million adults were found to be overweight. Egypt had the highest number of overweight adults in 2015. Vietnam had the least. In the same year, the United States had the highest number of overweight children, and Bangladesh had the least.Yet hunger remains a problem in many areas. The United Nations said that almost 800 million people, including 300 million children, go to bed hungry each night. Experts said poor diets and lack of physical activity are mainly to blame for the rising numbers of overweight people.Growing populations have led to rising obesity rates in poor countries. Often, poor people will eat processed(加工的) foods instead of choosing a diet rich in vegetables.The London-based Overseas Development Institute studied the price of food in five countries: Britain, Brazil, China, Mexico and South Korea. It found that the cost of processed foods like ice creamand hamburgers has fallen since 1990. But the cost of fresh fruits and vegetables has gone up.4. What do we know about obesity in the world?A. It is worryingB. It is given no attentionC. It has been successfully solvedD. It is more serious among old people5. Which country has the most overweight children in 2015?A. AmericaB. VietnamC. EgyptD. Bangladesh6. What is one of the reasons why people get overweight?A. HungerB. Poor dietC. Diets with vegetablesD. Eating too much fruit7. Which ofthe following can be the best title for the text?A. It’s Important to Have a Balanced DietB. How Can We Lose Weight and Keep Fit?C. Is It Necessary for Us to Eat Fresh Vegetables?D. Nearly One Third of People in the World Are Overweight.CGetting rid of dirt, in the opinion of most people, is a good thing However, there is nothing fixed about attitudes to dirt.In the early 16th century, people thought that dirt on the skin was a means to block outdisease, as medical opinion had it that washing off dirt with hot water could open up the skin and let ills in. A particular danger was thought to lie in public baths. By 1538, the French king had closed the bath houses in his kingdom. So did the king ofEnglandin 1546. Thus began a long time when the rich and the poor inEuropelived with dirt in a friendly way. Henry IV, king ofFrance, was famously dirty. Upon learning that a nobleman had taken a bath, the king ordered that, to avoid the attack of disease, the nobleman should not go out.Though the belief in the merit(优点) of dirt was long-lived, dirt has no longer been regarded as a nice neighbor ever since the 18th century. Scientifically speaking, cleaning away dirt is good to health. Clean water supply and hand washing are practical means of preventing disease. Yet, it seems that standards of cleanliness have moved beyond science since World War II. Advertisements repeatedly sell the idea: clothes need to be whiter than white, cloths ever softer, surfaces to shine. Has the hate for dirt, however, gone too far?Attitudes to dirt still differ hugely nowadays. Many first-time parents nervously try to warn their children off touching dirt, which might be responsible for the spread of disease. On the contrary, Mary Ruebush, an American immunologist(免疫学家), encourages children to play in the dirt to build up a strong immune system. And the latter position is gaining some ground.8. The kings ofFranceandEnglandin the 16th century closed bath houses because .A. they lived healthily in a dirty environmentB. they thought bath houses were too dirty to stay inC. they considered bathing as cause of skin diseaseD. They believed disease could be spread in public baths9. Which of the following best describes Henry IV’s attitude to bathing?A. CuriousB. AfraidC. ApprovingD. Uninterested10. How does the passage mainly develop?A. By following the order of time.B. By making comparison.C. By providing examplesD. By following the order of importance.111. What is the author’s purpose in writing the passages?A. To call attention to the danger of dirt.B. To introduce the history of dirt.C. To present the change of views on dirt.D. To stress the role of dirt.DPoaching and habitat loss have threatened Africa's two species of elephants, taking them closer toward the edge of disappearance, according to a new report released by the International Union for Conservation of Nature(IUCN).Before this update, Africa's elephants were grouped together and were evaluated as vulnerable by the IUCN. This is the first time the two species have been sorted separately. In the past, elephants were mostly considered as either Asian elephants or African elephants. Forest and savanna elephants were typically classified as subspecies of African elephants.The African forest elephant is now listed as critically endangered and the African savanna elephant as endangered. The number of African forest elephants fell by more than 86% over a 31 -year assessment period. The population of African savanna elephants dropped by at least 60% over the last 50 years, according to the IUCN, which tracks the assessment risk of the world's animals. Africa currently has an estimated 415,000 elephants, counting the two species together.Both elephant species experienced significant population decreases because of poaching. Although it peaked in 2011, illegal hunting still happens and continues to threaten elephant populations. African elephants also face continued habitat loss as their land isconvertedfor agriculture or other uses.There is some good conservation news, the IUCN points out. Anti-poaching measures, combined with better land use planning to support better human-wildlife relationships, have helped conservation efforts. Some forest elephant population figures have stabilized in well-managed areas in Gabon and the Republic of Congo and savanna population figures have remained stable or have been growing, particularly in the Kavango-ZambeziTransfrontier Conservation Area in southern Africa.But with constant demand for ivory and increasing human pressures on Africa's wild lands, concern for Africa's elephants is high, and the need to creatively conserve and wisely manage these animals and their habitats is more severe than ever.12. What can be inferred from the new report about African elephants?A. They are divided into three kinds.B. They are dying out.C. Their threat is mainly from poaching.D. Their population has grown in Africa.13. What does the author mainly tell us in Paragraph 3?A. The detailed number of African elephants.B. The similarities of African elephants.C. The different types of African elephants.D. The present situation of African elephants.14. What does the underlined word "converted" in Paragraph 4 probably mean?A. Expanded.B. Protected.C. Transformed.D. Forbidden.15. What's the authors attitude to the present situation of African elephants?A. Hopeless.B. Optimistic.C. Uncertain.D. Worried.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020-2021学年苏州市吴江中学高三英语二模试卷及参考答案
2020-2021学年苏州市吴江中学高三英语二模试卷及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AYou have to praise the smoothness（顺畅）of ants on the move. No matter how many of them are going toward a place, there's never a hold-up. A new research paper shows how ants keep traffic flowing by changing their behavior to meet changing conditions.For their experiments, researchers from the University of Toulouse focused on Argentine ants, animals that often move from colony（群落）to colony depending on where the food is. Making use of Argentine ants' talent for fast travel, the researchers built bridges connecting their colonies. The bridges were different in width from a fifth to three-quarters of an inch. The colonies, too, were of different sizes, ranging from 400 to more than 25,000 ants.Then the researchers sat back andmonitoredthe traffic. To their surprise, even when those narrower bridges were full of ants, there were no "traffic accidents". "When the number of ants on the bridge increased, ants seemed to be able to understand the situation and adjusted（调整）their speed accordingly to avoid making the traffic flow stop. "the authors note. "Moreover, ants avoided entering a busy road and made sure that the bridge was never too packed to cross.”The lesson for humans? The traffic problem may lie in our inability to adjust our driving habits for the good of the whole. Driving is fun when there are few cars on the road. Then the traffic moves very slowly. And yet, some impatient driver still acts like he's alone on the road.The research suggests that projects, like the ever-widening of highways, may never free us from traffic jams. As long as we drive along with our own habits, no matter how many other people are on the road, we'll always end up in a traffic jam. Indeed, less space may actually be a good thing. It leaves less room for individual choice and forces us to take a page from the driving book of ants.1. What is Paragraph 2 mainly about?A. The results of the experiments.B. The purpose of the experimentsC. The preparation of the experiments.D. The requirements of the experiments2. What does the underlined word "monitor" in paragraph 3 probably mean?A. watch and check.B. seek and improveC. design and planD. discuss and practise3. What is the best title for the text?A. Is widening highways a solution?B. Why don't ants need traffic lights?C. Can we learn safe driving from ants?D. What can ants teach us about traffic jams?BIn Australia, plenty of wild things can bite or sting(刺伤) you. Strangely enough, one of them is a tree. Now scientists have figured out what makes the tree’s sting so bad.The rainforests of eastern Australia are home to a stinging tree known as Dendrocnide. Many people callit the gympie-gympie tree—a name given to the tree by native Australians. It’s covered with sharp, needle-like hairs that carry poison. If you touch a gympie-gympie tree, you won’t forget it anytime soon. The pain can stay with you for hours, days or weeks. In some cases, it’s been reported to stay for months.Scientists have long looked for the source of this powerful sting. Now researchers at the University of Queensland have discovered what makes this stinging plant so painful. After carefully studying different kinds of gympie-gympie trees, the scientists were able to separate out different chemicals that the trees produce. This allowed them to identify a group of chemicals that they believed was responsible for the pain.The researchers created artificial versions of these chemicals, which they call “gympietides”. Sure enough, when the scientists injected mice with gympietides, the mice licked(舔) at the places where they’d been injected, indicating that they hurt in those places. When the scientists studied the way gympietides were built, they found that they formed a knot-like shape. The shape makes the chemicals very stable, which helps explain why the pain stays so long.The knot-like shape of the gympietides was similar to the shape of poisons produced by poisonous spiders and cone snails. The scientists were surprised to see three very different kinds of life all using similar poisons. Spiders and cone snails carry poisons because they catch food by stinging other creatures. It’s not clear how stinging helps the gympie-gympie tree.Though the tree’s sting may stop some animals from eating it, it doesn’t stop all animals. Beetles and pademelons (small s of the kangaroo) are able to eat the plant without trouble.4. Why is a touch on the stinging tree unforgettable?A. Because it has so unusual an appearance.B. Because it is extremely rare in existence.C. Because touching it creates a quite strange feeling.D. Because the pain caused by it doesn’t goaway quickly.5. What do scientists fail to find out about the stinging tree?A. How it produces poisons.B. What poisons it produces.C. How it benefits from the sting.D. The consequences of its sting.6. What does the text imply about the stinging tree?A. It produces the same poisons as spiders.B. Poisonous as it is, it also has natural enemies.C. Animals are wise enough to stay away from it.D. Only one chemical in it causes pain to the toucher.7. What’s the best title for the text?A. Scientists Discover Stinging Tree's SecretB. Caution: Stinging Tree Can Bite and Poison YouC. Scientists Discover a Strange Species in AustraliaD. Effective Ways to Avoid Being Hurt by Stinging TreeCEveryone can be angry. But if you take the time to actually examine your anger instead of just “feeling” angry, you’ll have a better understanding of yourself. Knowing why you feel so angry can provide you with some surprising answers. These answers can enable you to suddenly grow spiritually and mentally.I can give you a personal example. I went to a meeting once and I was verbally attacked over an application I supported at my workplace. Various people went on and on about how terrible this system was and that it never worked. That didn’t bother me that much. I was used to that but one of the comments that was said was, “Your job is pointless.” This really upset meand at the time, I was ly furious(发怒地) with that comment.I was so angry and upset that they would treat me that way. Once I took the time to think about what was really making me so mad. I learned a lot. I realized that the comment was more truethan I wanted to admit. In the big scheme of things, my job was pointless. It wasn’t what I really wanted to be doing with my life and this was what frustrated me the most. Here I was pouring part of my heart and soul into a job I didn’t even really want to do. I was using it as a crutch(拐杖) because I didn’t have the confidence in myself to take the scary road towards what I really wanted to do. As soon as I realized that, a lot of my anger just melted away. I also realized that I needed to start focusing on what I really wanted to do.I now consider this incident as a great gift It got me back on track to moving in the direction I wanted to go with my life. I probably wouldn’t be where I am today if I hadn’t taken the time to figure out why I was really so angry.8. What made the author angry at the meeting?A. The system of the company was terrible.B. Someone said his job is insignificant.C. The policy of the company didn’t work.D. The application he supported was of no effect.9. What brought down the anger of the author?A. The apology someone made at the meeting.B. The crutch he used to take the scary road.C. His awareness of the fact that the comment was true.D. The courage he had to overcome the challenges.10. Why did the author consider the incident as a gift?A. It brought him back on track to the goal.B. It helped him get promoted to a higher position.C. It helped him change his character since then.D. It provided him with confidence in his career.11. What can be the best title of the passage?A. How to Cope with Verbal Attack in a CompanyB. Avoid Being Pointless at WorkC. Anger Is Harmful to HealthD. Understanding Yourself Better Through AngerDFor years video games have been criticised for making people more antisocial, overweight or depressed. Bui now researchers are finding that video games can actually change us for the better and improve both our body and mind.Games can help to develop physical skills. Pre-school children who played interactive games have been shown to have improved motor skills, for example they can kick, catch and throw a ball better than children who don’t play video games. A study found that those who played video games were 27 percent faster and made 37 percent fewer errors than those who didn't.Games also benefit a variety of brain functions, including decision-making. People who play action-based games make decisions 25 percent faster than others, according to one study. It was also found that the best gamers can make choices and act on them up to six times a second, four times faster than most people. In another study by researchers from the University of Rochester in New York, experienced gamers were shown to be able topay attention to more than six things at once without getting confused, compared with the four that most people can normally keep in mind.There is also evidence that gaming can help with psychological problems. At the University of Auckland in New Zealand, researchers asked 94 young people diagnosed with depression to play a 3D fantasy game called SPARX and in many cases, the game reduced symptoms of depression more than conventional treatment.12. In what way playing video games benefits very young children?A. Muscle control.B. Social interaction.C. Decision-making.D. The ability to focus.13. Which type of video game improves the decision-making speed?A. Interactive games.B. Action-based games.C. 3D fantasy games.D. Violent games.14. What is the authors attitude to video games?A. Indifferent.B. Objective.C. Worried.D. Critical.15. What is the text mainly about?A. The effects of different types of video games.B. The negative effects of playing video games.C. The beneficial effects of playing video games.D. The effects of games on people's behavior.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020-2021学年苏州市吴江高级中学高三英语二模试卷及参考答案
2020-2021学年苏州市吴江高级中学高三英语二模试卷及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AThe Costa Book Awards consistently pick winners that are both of the moment and subsequently endure. It's our pleasure to confirm this year’s Category Winners.First Novel Award WinnerBook: Eleanor Oliphant is Completely FineAuthor: Gail HoneymanEleanor is 31 years old; work finishes on a Friday and begins again on a Monday. Between, her only company will be two bottles of vodka and her own solitary, unique wit (机智). It is contentment, of a kind, but an unexpected shared experience suddenly opens the door to possibility. Challenging reader expectations with a living, breathing character, Gail Honeyman’s debut (初次登台、开张)is a funny and moving diamond.Biography Award WinnerBook: In the Days of RainAuthor: Rebecca StottThe Exclusive Brethren were aclosed community who believed the world is ruled by Satan. Into this is born Rebecca. Her father had been an influential Brethren Minister. As her father lay dying, he begged her to help him write the memoir. He wanted to tell the story of their family who for generations had all been members of a fundamentalist Christian sect.Poetry Award WinnerBook: Inside the WaveAuthor: Helen DunmoreTo be alive is to be inside the wave, always travelling until it breaks and is gone. These poems are concerned with the borderline between the living and the dead — the underworld and the human living world – and the acutely intense being of both.Children's Award WinnerBook:The ExplorerAuthor: Katherine Rundell, Hannah HornFour children survive their aircraft plunging into the Amazon jungle, but for Fred and his friends it’s only the beginning of a cruel battle for survival. Brimming with adventure and a real command of character and incident, Rundell has few peers in superb children's fiction.1.What kind of life does Eleanor lead?A.boring and lonely.B.funny and touching.C.exciting and complex.D.ordinary and happy.2.Why did Rebecca Stott writeIn the Days of Rain?A.To introduce beliefs of the Exclusive Brethren.B.To help her father fulfill his last wish.CTo share the life of fundamentalist Christians.D.To pass on her family traditions.3.For a young adventurous soul, which book seems more appealing?A.Eleanor Oliphant is Completely FineB.In the Days of RainC.Inside the WaveD.The ExplorerBOne billion people in the world are short of water. How can this problem be solved. Some suggestions have been to desalinate ocean water or to build enormous water pipelines from areas where water is abundant. (Suggestions such as these prove extremely expensive when they are actually used.) One possibility that scientists are considering is pulling icebergs from either the North Pole or the South Pole to parts of the world with a water shortage. Although many questions must be answered before such a project could be tried, moving icebergs seems a reasonable possibility in the future.Engineers, mathematicians, and glaciologists from a dozen countries have been considering the iceberg as a future source of water. Saudi Arabia is particularly interested in this project because it has a great water shortage. Scientists estimate that it would take 128 days to transport a large iceberg (about 1/2 square mile) to Saudi Arabia. Yet the iceberg would be completely melted by the 104th day. Therefore, insulation would be essential, but how to insulate the iceberg remains an unsolved problem.The problems in transporting an iceberg are numerous. The first problem is choosing the iceberg to pull. The icebergs that form in the North Pole are quite difficult to handle because of their shape. Only a small portion extends above the water — most of the iceberg is below the surface, which would make it difficult to pull. South Pole icebergs, on the other hand, are flat and float like table tops. Thus they would be much easier to move.How can a 200-million-ton iceberg be moved. No ship is strong enough to pull such enormous weight through the water. Perhaps several ships could be used. Attaching ropes to an iceberg this size is also an enormous problem. Engineers think that large nails or long metal rods could be driven into the ice. What would happen if the iceberg splits into several pieces during the pulling. Even if an iceberg with very few cracks were chosen, how could it be pulled through stormy waters. Furthermore, once the iceberg reached its destination, very few ports would be deep enough to store it.All of these problems must be solved before icebergs can become a reasonable source of water. Yet scientists estimate that it will be possible to transport them in the near future. Each year, enough icebergs form to supply the whole world with fresh water for a full year. In addition, icebergs are free and nonpolluting. As a solution to the world’s water problems, icebergs may be a workable possibility.4. What is a problem in transporting iceberg?A. The size of the iceberg.B. The colour of the iceberg.C. The salt in the iceberg.D. The movement of air and water.5. What is the author’ attitude towards transporting iceberg?A. Pessimistic.B. Objective.C. Optimistic.D. Unconcerned.6. What does the last paragraph mainly tell us?A. It is hard to use iceberg.B. Iceberg are a good choice.C. There are problems with iceberg.D. Man finds no other ways to solve water shortage.7. What can be a suitable title for the text?A. Shortage of water.B. Icebergs for water.C. Scientists and icebergs.D. Iceberg—scientists headache.CThe Great Barrier Reef's outlook remains “very poor” despite coral (珊瑚) recovery over the past year, Australian government scientistssaid Monday, just days before a UNESCO ruling on the site's world heritage (遗产) status.The United Nations cultural agency recommended last month that the world's largest reef (珊瑚礁) system be placed on its endangered list because of damage to the corals largely caused by climate change.The Australian Institute of Marine Science (AIMS) said the corals were now in a “recovery window” after a decade of harmful heat stress and cyclones (旋风). But such opportunities were becoming rarer due to the influence ofclimate change, the government agency, which has monitored the reef for 35 years, said in its annual report released today. “The increasing emergence of climate-related extreme weather events and starfish outbreaks is causing more severe and frequent pressures, giving the reef fewer opportunities like this to recover,”CEO Paul Hardisty said. The scientists surveyed 127 reef sites in 2021 and found hard coral cover had increased at 69 of the 81 locations surveyed in the past two years.Separate scientific research released last October found the 2, 300-kilometre (1, 400 miles) system had lost half its corals since 1995, with a series of ocean heatwaves causing mass coral death.Britta Schaffelke, research program director at AIMS, said the latest findings provided a slight hope that the reef still has the power of recovering. But she added that its future is still very poor because of the dangers of climate change and other factors that are affecting the reef.UNESCO has urged Australia to take urgent climate action but the government has long resisted calls to commit to net zero emissions (排放) by 2050. The government has said it hopes to meet the target “as soon as possible” without harming its economy, insisting dealing with climate change requires a global effort. The reef was worth about US $4. 8 billion a year in tourism for the Australian economy and there are fears that an “in danger” listing could weaken its tourist appeal.8. What is the major cause of the damage to the corals?A. The climate change.B. Lack of money.C. Over development.D. Too many tourists.9. What is mainly talked about in Paragraph 3?A. The result of the survey.B. The efforts AIMS has made.C. The slight chance of the recovery.D. The terrible situation of the climate.10. What is Britta Schaffelke's attitude towards the future of the reef?A. Unclear.B. Positive.C Intolerant. D. Anxious.11. What can we infer from the last paragraph?A. Australia wants to put the reef on the endangered list.B. The Australian government has ignored UNESCO's demand.C. Australia hopes to keep a balance between emission target and its economy.D. The Australian government refuses to take its share of responsibility of climate change.DWhen rescuers were called to rescue a “little owl”, they did not expect to find one that was too fat to fly. A concerned citizen first spotted the poor bird lying helplessly. Even Rufus Samkin, whose team then took the team in on Jan.3, believed the bird to be injured. There were no wounds to be found, however, causing experts to believe the female owl was simply too wet to fly.But it was only after a thorough drying-off and complete checkup that they noted the real issue. The rescuers weighed the owl and concluded that she was “simply extremely obese” and couldn’t take off. This additional weight left her unable to fly, though experts began to wonder how she got so fat in the first place. Because it’s rather unusual for wild birds to reach such a state, they decided to keep her a few weeks and monitor her.In the end, the rescuers assessed that it was simply a case of “natural obesity”. December 2019 was quite warm, which meant that there were many insects for the bird to feast upon. Indeed, the owl was discovered in a field that was “filled with field mice” due to the usual climate. “It’s been very mild here, and the owl is able to find foods easily,” Samkin explained. With the sudden food, “she ly ate much and got very fat. She had a lovely time, but went too far.”The researchers consequently put the owl on a “strict diet” so she could shrink to a more “natural weight”. She was even put on a bit of exercise and encouraged to fly around. In the end, the bird was sent flying gracefully off into the British countryside at a much healthier and happier weight. Hopefully, this owl won’t come upon another feast of field mice—unless she wants another few weeks at the fat camp.12. What did people think happened to the owl at first?A. She was hurt.B. She was trapped.C. She was hungry.D. She was wet.13. Why was the bird unable to fly?A. She needed a thorough checkup.B. She should be given a drying-off.C. She was completed overweight.D. She was simply extremely strong.14. What made the owl have enough foods?A. The especially warm weather.B. The reducing number of insects.C. The rich fields growing crops.D. The lovely time the bird enjoyed.15. How did the owl loseits weight?A. Going on a diet and exercising.B. Flying in the British countryside.C. Visiting that fat camp again.D. Enjoying her wonderful feast freely.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
吴江汾湖高级中学2020-2021学年高二第二学期阶段性教学质量检测数学试题及答案
2020-2021学年第二学期汾湖高级中学阶段性教学质量检测 高二数学试卷试卷分值：150分考试用时：120分钟一、单项选择题：本题共8小题，每小题5分，共40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． 1．函数()ln f x x =的导数是（） A ．xB ．1xC ．ln xD ．x e2．从7个人中选3个人参加演讲比赛，则不同的选法种数为（） A ．21B ．30C ．35D ．403．函数1()1f x x =+的图象在点11,22f ⎛⎫⎛⎫ ⎪ ⎪⎝⎭⎝⎭处的切线斜率为（） A ．2B ．－2C ．4D ．－44．若2213n n A C -=，则n 的值为（） A ．4B ．5C ．6D ．75．函数3()2ln f x x x x=++的单调递减区间是( ) A ．(3,1)-B ．(0,1) C ．(1,3)-D ．(0,3)6．从4名男生和3名女生中选出3人，分别从事三项不同的工作，若这3人中至少有1名女生，则选派方案共有() A ．108种B ．186种C ．216种D ．270种7．航空母舰“辽宁舰”将进行一次编队配置科学试验，要求2艘攻击型核潜艇一前一后，3艘驱逐舰和3艘护卫舰分列左右，每侧3艘，同侧不能都是同种舰艇，则舰艇分配方案的方法数为( )A ．72B ．324C ．648D ．1296 8．关于函数()2ln f x a x x=+，下列判断错误的是（） A ．函数()f x 的图像在点1x =处的切线方程为()240a x y a ---+=B ．2x a=是函数()f x 的一个极值点 C ．当1a =时，()ln 21f x ≥+D ．当1a =-时，不等式()()210f x f x -->的解集为1,12⎛⎫⎪⎝⎭二、多项选择题：本题共4小题，每小题5分，共20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5分，部分选对的得2分，有选错的得0分．9．已知曲线31y x x =-+在点P 处的切线平行于直线2y x =，那么点P 的坐标为（） A ．(1,0)B ．(1,1)C ．(1,1)-D ．(0,1)10．某学生想在物理、化学、生物、政治、历史、地理、技术这七门课程中选三门作为选考科目，下列说法错误的是（）A ．若任意选择三门课程，选法总数为37A B ．若物理和化学至少选一门，选法总数为1225C CC ．若物理和历史不能同时选，选法总数为3175C C -D ．若物理和化学至少选一门，且物理和历史不能同时选，选法总数为121255C C C - 11．为弘扬我国古代的“六艺文化”，某夏令营主办单位计划利用暑期开设“礼”“乐”“射”“御”“书”“数”六门体验课程，每周一门，连续开设六周.则下列说法正确的是（）A ．某学生从中选3门，共有30种选法B ．课程“射”“御”排在不相邻两周，共有240种排法C ．课程“礼”“书”“数”排在相邻三周，共有144种排法D ．课程“乐”不排在第一周，课程“御”不排在最后一周，共有504种排法 12．对于函数()2ln x f x x＝，下列说法正确的是（）A ．()f x 在e x ＝12eB ．()f x 有两个不同的零点C ．(2π3ff f ＜＜D ．若()21f x k x -＜在()0,+∞上恒成立，则e 2k ＞ 三、填空题：本题共4小题，每小题5分，共20分． 13．已知()31f x x x=-+的导函数为()f x '，则()1f '-=________ 14．我国古代典籍《周易》用“卦”描述万物的变化．每一“重卦”由从下到上排列的6个爻组成，爻分为阳爻“”和阴爻“”，下图就是一重卦．如果某重卦中有2个阳爻，则它可以组成__________种重卦．（用数字作答）15．某市政府决定派遣8名干部（5男3女）分成两个小组，到该市甲、乙两个县去检查扶贫工作，若要求每组至少3人，且女干部不能单独成组，则不同的派遣方案共有_________种.（用数字作答）16．设函数()xf x x e -=-(e 为自然对数的底数），直线y ax b =+是曲线()y f x =的切线，则2a b +的最小值为______.四、解答题：本题共6小题，共70分．解答应写出文字说明、证明过程或演算步骤． 17．（10分）有一项活动，需要在3名老师、8名男同学和5名女同学中选人参加. （1）若只需选1人参加，则有多少种不同的选法？（2）若需要老师、男同学、女同学各1人参加，则有多少种不同的选法？ （3）若需要1名老师、1名学生参加，则有多少种不同的选法？ 18．（12分）已知函数3()3 1 f x x ax =--在1x =-处取得极值. （1）求实数a 的值；（2）当[2,1]x ∈-时，求函数()f x 的最小值. 19．（12分）一个口袋内有4个不同的红球，6个不同的白球， （1）从中任取4个球，红球的个数不比白球少的取法有多少种？（2）若取一个红球记2分，取一个白球记1分，从中任取5个球，使总分不少于7分的取法有多少种？20．（12分）已知函数2()ln f x a x x =+． （1）当2a =-时，求函数()f x 的单调区间； （2）若函数2()()x g f x x=+在[1,)+∞上是单调函数，求实数a 的取值范围． 21．（12分）为了缓解城市交通压力，某市市政府在市区一主要交通干道修建高架桥，两端的桥墩现已建好，已知这两桥墩相距m 米，“余下的工程”只需建两端桥墩之间的桥面和桥墩．经测算，一个桥墩的工程费用为256万元；距离为x 米的相邻两墩之间的桥面工程费用为(2x )x 万元．假设桥墩等距离分布，所有桥墩都视为点，且不考虑其他因素．记“余下工程”的费用为y 万元．(1)试写出工程费用y 关于x 的函数关系式；(2)当m ＝640米时，需新建多少个桥墩才能使工程费用y 最小？并求出其最小值．22．（12分）已知函数()()ln f x x m x =+，曲线()y f x =在()2.71828x e e ==是自然对数的底数处的切线与直线122y x =-+垂直． （1）求实数m 及函数()f x 的极值；（2）若当1x >时，函数()()11y ax x =+-的图象恒在函数()()1y a f x =+的图象的上方，求实数a 的取值范围．数学答案1．B2．C3．D4．C5．B6．B7．D 8．B 9．BC10．ABD11．CD12．ACD 13．－414．1515．18016．212e -17．【解】（1）需一人参加，有三类：第一类选老师，有3种不同的选法；第二类选男生，有8种不同的选法；第三类选女生，有5种不同的选法.共有38516++=种不同的选法；--------3分（2）需老师、男同学、女同学各一人，则分3步，第一步选老师，有3种不同的选法；第二步选男生，有8种不同的选法；第三步选女生，有5种不同的选法.共有385120⨯⨯=种不同的选法；--------6分（3）第一步选老师有3种不同的选法，第二步选学生有8513+=种不同的选法，共有31339⨯=种不同的选法.--------10分18．【解】（1）3'2()31()33f x x ax f x x a =⇒=---，--------1分 函数3()3 1 f x x ax =--在1x =-处取得极值，所以有2'3(1()01130)a f a --==⇒-=⇒；--------4分（2）由（1）可知：3'2()31()333(1)(1 )f x x x f x x x x =--=-=+-⇒，--------5分当(2,1)x ∈--时，'()0f x >，函数()f x 单调递增，当(1,1)x ∈-时，'()0f x <，函数()f x 单调递减，--------8分故函数在1x =-处取得极大值，因此3(1)(1) =13(1)1f -=--⨯--，3(2)(2)3(2) 1 3=f -=--⨯---，3(1)131 1=3f =-⨯--，--------11分故函数()f x 的最小值为3-.--------12分19．【解】（1）从中任取4个球，红球的个数不比白球少的取法，红球4个，红球3个和白球1个，红球2个和白球2个.第一种，红球4个，取法有种； 第二种，红球3个和白球1个，取法有种；第三种，红球2个和白球2个，取法有种；根据分类计数原理，红球的个数不比白球少的取法有12490115++=种．--------5分 （2）使总分不少于7分情况有三种情况，4红1白，3红2白，2红3白.第一种，4红1白，取法有41466C C =种；第二种，3红2白，取法有324660C C ⋅=种， 第三种，2红3白，取法有2346120C C ⋅=种，根据分类计数原理，总分不少于7分的取法有660120186.++=--------12分 20．【解】（1）函数()f x 的定义域是0x >，2a =-时，22(1)(1)'()2x x f x x x x-+=-=，---1分 当01x <<时，'()0f x <，()f x 递减，当1x >时，'()0f x >，()f x 递增． ∴()f x 的增区间是(1,)+∞，减区间是(0,1)；-------4分 （2）22()ln g x x a x x =++，22'()2a g x x x x=+-，-------5分 由题意当1≥x 时，'()0g x ≥恒成立，或'()0g x ≤恒成立．-------6分①若22()20a g'x x x x =+-≥，2222(1)(1)2x x x a x x x-++≥-=-，当1≥x 时，22(1)(1)0x x x x-++-≤，∴0a ≥；-------9分②若22()20a g'x x x x =+-≤，2222(1)(1)2x x x a x x x-++≤-=-，当1≥x 时，22(1)(1)0x x x x-++-≤无最小值，∴'()0g x ≤不可能恒成立；-------11分综上0a ≥．-------12分21．【解】（1）相邻桥墩间距x 米，需建桥墩(1)mx-个，则256(1)(22562256m m my x m x x x=-++⋅=⋅+-，(0x m <<)-------5分22．（2）当640m =米时，()2566401024y f x x==⨯++（，-------6分()3922225626406402x f x x x -⎛'=⨯-+=⨯⎝，-------7分 ∵620f '=（）且62x >时，()0f x >′，()f x 单调递增，602x <<时，()0f x <′，()f x 单调递减，-------10分 ∴628704f x f x f ===最小极小（）（）（），∴需新建桥墩6640192-=个. 答：需新建9个桥墩才能使工程费用最少，最小值为8704万元。
高二英语下学期第二次阶段性测试试题
吴江平望中学2021—2021学年第二学期阶段性测试〔2〕高二英语试卷〔满分是：120分，考试时间是是：120分钟〕 2021年5月第一局部：听力一共两节，满分是15分第一节〔一共5小题；每一小题1分，满分是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三个选项里面选出最正确选项，并标在试卷的相应位置。
听完每段对话后，你有10秒钟的时间是来答复有关小题和阅读下一小题。
每段对话仅读一遍。
1. What’s the probable relationship between the two speakers?A. Driver and passenger.B. Teacher and student.C. Classmates.2. Why can’t the man help the woman?A. He must leave at once.B. He’s too busy.C. He doesn’t know how to help her.3. What will the woman probably do this evening?A. She will attend the wedding.B. She will go over the lessons.C. She will eat out.4. What does the man imply?A. Karen is very forgetful.B. He knows Karen better now.C. Karen is sure to pass the interview.5. What are the speakers doing?A. Riding a horse.B. Shooting a movie .C. Taking a photo. 第二节〔一共15小题：每一小题1分，满分是10分〕听下面5段对话或者独白。
江苏省吴江市汾湖高级中学2020┄2021学年高二下学期期中考试物理试题
一、单项选择题（每小题只有一个选项正确，每小题3分,共30分）１．关于布朗运动，下述正确的有（)A.布朗运动就是液体分子的热运动B.悬浮在液体中的小颗粒越大，撞击它的分子数越多,布朗运动越激烈C．布朗运动说明了悬浮小颗粒内部分子是不停地无规则运动的D.温度降低了，布朗运动也不会停息2．关于动量，下列说法正确的是A.速度大的物体,它的动量一定也大B．动量大的物体,它的速度一定也大C.只要物体运动的速度大小不变,物体的动量也保持不变Ｄ.质量一定的物体,动量变化越大，该物体的速度变化一定越大３．为了将空气装入气瓶内,现将一定质量的空气等温压缩，空气可视为理想气体。
下列图象能正确表示该过程中空气的压强ｐ和体积V关系的是（）的是( )4．关于黑体和黑体辐射，下列叙述不正确．．．A.波尔通过研究黑体辐射提出能量子的概念,成为量子力学的奠基人之一B．黑体能完全吸收入射的各种波长的电磁波，不反射C．黑体辐射电磁波的强度按波长的分布只与黑体的温度有关D.黑体辐射随着温度的升高,各种波长的辐射强度都增加且辐射强度的极大值向波长较短的方向移动5．做这样的实验：先把一个棉线圈拴在铁丝环上,再把环在肥皂水里浸一下,使环上布满肥皂的薄膜，如图所示，如果用热针刺破棉线里那部分薄膜,则棉线圈将成为( )Ａ.椭圆形Ｂ.长方形C．圆形Ｄ.任意形状6.根据爱因斯坦光子说,光子能量E等于（h为普朗克常量,c、λ为真空中的光速和波长）（)Ａ.h错误! B.ｈ错误! C.ｈλ D.错误!7.固定的水平汽缸内由活塞B封闭着一定量的气体,气体分子之间的相互作用可以忽略.假设汽缸的导热性能良好,环境的温度保持不变.若用外力F将活塞B缓慢地向右拉动,如图所示,则在拉动活塞的过程中，关于汽缸内气体的下列结论，其正确的是（）A.气体对外做功，气体内能增加Ｂ．气体对外做功,气体内能减少C．气体从外界吸热，气体内能不变D．气体向外界放热,气体内能不变8.居室中经常用到花岗岩、大理石等材料都不同程度地含有放射性元素，如含有铀、钍的花岗石会释放出放射性气体氡,而氡会发生放射性衰变,放射出α、β、γ射线，这些射线会导致细胞发生癌变及呼吸道疾病。