2018年苏锡常镇四市一模试题和答案
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)
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江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生。
根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力。
该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养。
本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系。
单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考。
作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视。
所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平。
第一卷(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纸上。
第一节(共5 小题;每小题1分,满分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. What does the woman think of the restaurant?A. It is noisy.B. It is quiet.C. It is terrible.2. What’s the probable relationship between the two speakers?A. Mother and child.B. Teacher and student.C. Husband and wife.3. What does the woman advise the man to do?A. See her favorite band.B. Go to the concert.C. Do experiments in the lab.4. What most probably causes the woman’s headache?A. Too little seep.B. The strong sunshine.C. Too much medicine.5. What does the man mean?A. The woman can use his glasses.B. The dictionary is not of much help.C. He has to use a pair of glasses.第二节(共15 小题; 每小题1分,满分15 分)听下面5 段对话或独白。
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)
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##省苏锡常镇四市2018届高三教学情况调研〔一〕英语试题〔解析版〕回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗![总览]2018年苏南一模依据##2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生.根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力.该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养.本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系.单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考.作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视.所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平.第一卷<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纸上.第一节<共5 小题;每小题1分,满分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. What does the woman think of the restaurant?A. It is noisy.B. It is quiet.C. It is terrible.2. What’s the probable relationship between the two speakers?A. Mother and child.B. Teacher and student.C. Husband and wife.3. What does the woman advise the man to do?A. See her favorite band.B. Go to the concert.C. Do experiments in the lab.4. What most probably causes the woman’s headache?A. Too little seep.B. The strong sunshine.C. Too much medicine.5. What does the man mean?A. The woman can use his glasses.B. The dictionary is not ofmuch help.C. He has to use a pair ofglasses.第二节<共15 小题; 每小题1分,满分15 分>听下面5 段对话或独白.每段对话或独白后有几个小题,从题中所给的A、B、C 三个选项中选出最佳选项,并标在试卷的相应位置.听每段对话或独白前, 你将有时间阅读各个小题,每小题5秒钟; 听完后,各小题将给出5 秒钟的作答时间.每段对话或独白读两遍.听第6段材料,回答第6 至7题.6. What did the candidate do in the interview?A. She showed much confidence.B. She greeted the interviewer with nodding.C. She made eye contact with the interviewer.7. What is the woman dissatisfied with?A. The candidate’s way ofsitting.B. The candidate’s way of shaking hands.C. The candidate’s way of introducing herself.听第7段材料,回答第8至10题.8. Where does the conversation take place?A. In a cinema.B. In a restaurant.C. In an office.9. What did the speakersjust do?A. They had an interview.B. They metafunnywoman.C. Theysawamovie.10. What do we know about the man?A. He is not interested in the movie actually.B. He knows why he hasn’t received a reply.C. He is worried about the chance of getting ajob.听第8段材料,回答第11至13题.11. What did the woman first think when someone answered the call?A. The person was too rude.B. She dialed the wrong number.C. The restaurant was professional.12. How did the person deal with the woman’s reservation?A. He took a message.B. He refused her impolitely.C. He asked her not to ring again.13. What did the woman decide to do finally?A. Ring another restaurant.B. Call back the restaurant later.C. Make a complaint about the restaurant.听第9段材料,回答第14至16题.14. Why does the man go to Hong Kong?A. To travel.B. To work.C. To study.15. What does the woman remind the man to do?A. Get a work permit upon his arrival.B. Buy guide books before leaving.C. Pay attention to his clothes at work.16. What can we learn from the conversation?A. The man must pay for the local language lessons.B. The man has taken some passport photos at a low price.C. One week is enough for the man to find a place to live in.听第10段材料,回答第17 至20 题.17. Whatwastheold mandoingnearthe river?A. Seeking some help.B. Appreciating a snow statue.C. Waiting for a horseman he knew.18. What was the last rider puzzled about?A. Why the old man was staying there alone.B. Why the old man asked him instead ofthe others.C. Why the old man was watching horsemen approaching.19. What do we know about the other riders?A. They were kind and gentle.B. They gave the old man a ride.C. They passed by without stopping.20. What does the passage mainly talk about?A. A horseman who lives nearby.B. Riders who passed by on a cold night.C. An old man who knows people pretty good.答案:1-5 BCCBC6- 10BABCC11-15BBABC 16-20 CABCC第二部分: 英语知识运用<共两节,满分35 分>第一节: 单项选择<共15 小题; 每小题1分, 满分15 分>请认真阅读下面各题,从题中所给的A、B、C、D 四个选项中,选出最佳选项,并在答题纸上将该项涂黑.21. Every great accomplishment rests on theof what came before it; when you trace itback, you’ll see one small step that started it all.A. reputationB. expectationC. recreationD. foundation22. Our country has launched a campaign to ban smoking in public places, whichwithsome heavy smokers.A. concernsB. was concernedC. concernedD. is concerned23. The Lifelong Learning Programmeto enable people to take part in learningexperiences has taken offacross Europe.A. having been designedB. being designedC. designedD. designing24. Newly released data point to an increase in technology use among childrensomeworry is changing the very nature of childhood.A. whyB. whichC. whoD. where25. Cells are important because they are organized structures that help living thingthe activities oflife.A. carry onB. expand onC. put onD. hang on26. you can learn to appreciate the challenges in life, you will find inner strength.A. WhenB. WhileD. UnlessC. Before27. -Do you like the mobile game Traveling Frog?-Yes, the posts about the virtual green frogover 4 million times.A. have readB. have been readC. would be readD. are reading28. The world’s leading thinkers and policymakers examine what’s come apart in the past year, andwhat will define the year ahead,A. evaluateB. innovateC. anticipateD. regulate29. A problem has occurredwe should develop innovative thinking abilities in theclassrooms by giving students opportunities to generate new ideas.A. whatB. whereC. whetherD. that30. Although values may be____, it’s helpful to share them with your partner for additionalsupport.A. terminalB. personalC. crucialD. practical31. Therea slight decrease in his weight but he eats too much.A. wasB. could have beenC. had beenD. could be32. We really emphasize the importance of putting______safeguards to prevent children’sidentities from falling in wrong people’s hands.A. in placeB. in vainC. in questionD. in earnest33. -Could you pass me the sugar, please?-OK, ____A. never mindB. sounds greatC. here you goD. there it is34. We won’t think of human clones andany reason to suggest that we are closer toproducing them today than we were yesterday.A. neither there isB. neither there wasC. nor is thereD. nor was there35. -I feel caught between experience andjobs after graduation.-It’s really_________—without experience you can’t get a job and without a job youcan’t get experience.A. a catch-22B. a Herculean taskC. a sacred cowD. a Mickey Mouse course答案:21-25 DDCBA 26-30 ABCCB 31-35 DACCA详细解析:第21题:考查名词词义辨析.A名声,B期望,C娱乐,D基础.根据句意可知,此处表达的是每一项伟大的成就都依赖于之前所有的根基;故选D.第22题:考查固定搭配.句意:我们国家已经推行了一项在公共场所禁烟的运动,这关系到了很多烟民.Beconcerned with与…有关,故选D.第23题:考查动词语态.根据句意:这个旨在帮助人们参与到学习中的终身学习计划已经在全欧洲取得重大成功.在这里,designed过去分词做后置定语修饰programme,故选C.第24题:考查定语从句.Some worry为插入语可略去不看,which指物指代an increase intechnology use among children这个现象;故选B.第25题:考查动词短语.A进行,B拓展,C穿上,D坚持,根据句意:细胞是十分重要的因为它们是帮助生物进行生命活动的组织器官;故选A.第26题:考查连词用法.When作连词时可等于if,所以句意为:如果你能学着去感激生活中的挑战,你就会发现其中的内在力量;故选A.第27题:考查动词语态.句意:——你喜爱旅行青蛙这款手机游戏嘛?——喜欢,关于这个虚拟青蛙的帖子已经有了超过四百万的阅读量了.根据句意应该表示为已经被阅读了,故选B.第28题:考查词义辨析.A评估,B创新,C参加,D规X,根据句意可知,此处表达的应是预计什么东西决定着明年〔的状况〕;故选C.第29题:考查连词.句意:一个关于我们是否应该培养学生创新能力的问题已经出现了.根据句意此处应表示是否,故选C.第30题:考查形容词词义辨析.A极限的,B个人的,C重要的,D实际的,句意:尽管价值可能是非常私人的,但是把它和你的朋友分享来获得额外支持是也是非常有帮助的;故选B.第31题:考查虚拟语气.句意:他的体重本来可以减轻不少的但他吃的太多了.根据后文的eats可确定主句时态为现在时,故虚拟用could be表示,本可能,选D.第32题:考查介词短语.A到位,B徒劳,C在考虑中的,D诚挚的,根据句意,把防护措施摆放到位,故选A.第33题:考查情景交际.句意:——麻烦给我一点糖行吗?——好的,给你.C中here you go口语中常用,等于here you are意为"给你〞,故选C.第34题:考查语序.A和B未倒装,直接排除,根据句意应为现在时,故选C.第35题:考查俗语谚语.A自相矛盾的事情,B极为艰巨的任务,C神圣的东西,D非常简单的活.根据句意可知,这确实以一个难以抉择的事情,故选A.第二节: 完形填空<共20 小题; 每小题1分, 满分20分>请认真阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项,并在答题纸上将该项涂黑.Like many perfectionists, Itruly believed that self-sufficiency was a virtue. And36 mybrain was so good at finding what it was looking for, I noticed every single time that idea gotproved37, and so Ialways had lots of38 forwhy it really was better if Ijusthandled everything myself.This kind ofthinking, friends, was the39 in disguise <伪装>.My self-reliance came in handy whenI was a kid in the seventies and in adulthood when Iwas an independent40 Then, in the first years of41the Organized Artist Company, Ifound myself42everythingI could about websites, copywriting, graphic design, etc. Later whenever one of my business friends43about how her website was being held hostage <人质> by her designer, I44 felt too satisfied. 45 ifmistakes were made inmy business, they were all mine.Now this was where my false46 showed up—in not wanting others to knowI mademistakes. IfI had other people47 me, they would see my errors and48. Workingalone, Icould keep up a pretty good display of49.But as the Organized Artist Company became increasingly50, I realized Iwas doingharm to the people Iwas trying to serve by attempting to do everything myself. Iwas51 mygrowth and the depth of my work.Ihad built a business with my own two hands, andI52 with a business thatI couldhold in my own two hands. Cozy, 53 limited in scope <X围>.OnceI was willing to control my ego< 自负> and admit that my vision of self-sufficiencywas a54 my business took a remarkable leap forward, and revenue55. Little change, big difference.36. A. while B. since C. before D. until37. A. clear B. mistaken C. rough D. right38. A. evidence B. experience C. suggestion D. confidence39. A. magic B. devil C. sheep D. heaven40. A. worker B. perfectionist C. writer D. artist41. A. running B. owning C. founding D. establishing42. A. losing B. quitting C. learning D. possessing43. A. communicated B. commented C. compromised D. complained44. A. doubtfully B. seriously C. secretly D. strangely45. A. At most B. At last C. At length D. At least46. A. elegance B. pride C. anxiety D. annoyance47. A. helping B. persuading C. criticizing D. ignoring48. A. statements B. misjudgments C. arguments D. agreements49. A. inspiration B. imagination C. excellence D. patience50. A. difficult B. successful C. boring D. relaxing51. A. limiting B. designing C. creating D. promoting52. A. came down B. got away C. ended up D. came up53. A. but B. or C. so D. and54. A. dream B. virtue C. concept D. trap55. A. shrank B. doubled C. dropped D. stayed答案:36-40 BDABD 41-45 ACDCD 46-50BABCB 51-55 ACADB详细解析:第36题根据句意,此处表达的是自从我的大脑已经好到可以明白它到底在追寻什么的时候,选since自从.第37题根据上文的self-sufficiency和so good at…作者表达自己十分自信,四个选项中只有right可以表达这种情感,故选D.第38题"所以我总是会有很多证据来证明如果我自己干我会干的更好〞,根据后文的why易得选evidence.第39题friends为插入语,作者在告诉读者这种想法是十分不好的,是伪装中最坏的一种,四个选项中只有devil 为贬,故易得B.第40题往下看,下一句,作者创办艺术公司,前后呼应,可知作者自己也是一名独立艺术家,故选D.第41题"当我自己在经营一家艺术公司的时候〞,run运营,经营.第42题根据上文,作者是一个喜欢单干的人,所以在他运营一家艺术公司的时候,他开始学着去做各种各样的事情,learning学着去做,其他三个选项都不符合语境.第43题根据上文,此处应该为抱怨,故填complained,选D.第44题作者此时私下里觉得太满足了,故填secretly,选C.第45题A至多,B最终,C充分的,D至少,"至少我工作上所有出现的错误都可以由我一人来承担〔他人不用知道〕〞,根据作者情感选D.第46题作者开始反省自己,发现自己当时的错误的骄傲,pride,故选B.第47题作者想的是,如果其他人帮我的话,他们就会看到我失误以与判断错误,但是如果我单干的话,我就可以假装自己干得非常好.Helping帮助,选A.第48题见47解析,misjudgment判断失误.第49题见47解析,excellence优秀,卓越.第50题句意"但是当我的艺术公司办的越来越成功的时候,我发觉我这样单干其实是对那些我服务的人的伤害,我这样其实是限制了我自己的发展和我工作的深度〞,50题肯定是个褒义词,表示公司越办越好,successful 成功,选B.第51题见50题解析,limit限制,选A.第52题根据句意,作者通过自己的双手创办了一家公司,但是因为一直是自己单干不去寻求他人的帮助,所以这个公司的最终也做不大,I could hold in myown hands是形象的说法,end up以…告终,选C.第53题根据上文,尽管舒适,但也被限制.But表示前后转折,选A.第54题作者在反省自己的自以为是,根据文章主旨应该填一个贬义词来修饰self-sufficiency,四个选项中只有trap为贬义,故选D.第55题与前面半句话take a remarkable leap forward进行对应,故此空填double,事业路途加长,故选B.[附完形全文翻译]和许多完美主义者一样,我真的认为自给自足是一种美德. 而且由于我的大脑是如此的善于找到它正在寻找的东西,我注意到每一个想法都被证明是正确的,所以我总是有大量的证据来解释为什么如果我自己处理所有的事情,它真的会更好.这种想法,朋友啊,原来是伪装的魔鬼.在70 年代和成年时,我是一个独立的艺术家,我的自立就派上用场了. 然后,在开办有组织的艺术家公司的头几年里,我发现我自己在学习任何关于、文案、平面设计等方面的知识. 后来,每当我的一个商业上的朋友抱怨她的是如何被她的设计师劫持的,我暗自觉得太满足了.至少如果我的生意犯了错误,他们都是我的.这就是我的虚假骄傲出现的地方—我不想让别人知道我犯了错误.如果我让别人帮助我,他们会看到我的错误和误判. 独自工作,我可以保持优秀的表现.但是随着有组织的艺术家公司变得越来越成功,我意识到自己凡事都亲历亲为反而对那些我想去服务的人造成了伤害.我限制了自己的成长和工作的深度.我曾经用双手建立了自己的生意,最后拥有了一个自己的双手能掌控的生意.舒适,但X围有限.一旦我愿意控制我的自负,承认我自给自足的愿景是一个陷阱,我的事业取得了显著的飞跃,收入增加了一倍.结果变化不大,差别很大.第三部分: 阅读理解<共15小题; 每小题2 分,满分30分>请认真阅读下列短文, 从短文后各题所给的A、B、C、D 四个选项中, 选出最佳选项, 并在答题纸上将该项涂黑.AELECTRICITY IS AT THE CORE OF MODERNLIFE. DESPITE THIS, THE FULL STORY OFTHISREVOLUTIONARYFORCEHASREMAINED UNTOLD—UNTIL NOW.Simply Electrifying offers the comprehensive storyofone ofmankind’s most important journeys: from atime when only a few could evenimagine a world withelectricity to today when, for most of us, a world without electricity would be unimaginable.Since the birth of the modernscience ofelectricity 265 years ago, mankind has built an impressive structure to produce, deliver, and useelectricity, thanks to a combination of pioneeringscience, innovativetechnology, wisebusinessstrategy, and pervasive <到处存在的>economicand environmental regulation.Simply Electrifying brings to life the stories of the people that made it all possible—fromearly pathfinders like Benjamin Franklin, Michael Faraday, James Clerk Maxwell, and AlbertEinstein to innovators such as Samuel Morse, Thomas Edison, George Westinghouse, andNikola Tesla. In modern times, business strategists and economic and environmental regulationdriven by many, including President Franklin D. Roosevelt, Rachel Carson, and even PresidentBarack Obama, have shaped how we use and understand electricity in crucial ways. Today, ElonMusk and others are on the edge of again changing the way we think about and interact with it.Simply Electrifying is painstakingly researched and beautifully written, showing us how bothprofit-makers and policy-makers must use a wide-angle lens to truly understand the past andpredict the future.56. According to the passage, the book Simply Electrifying is written to tell us.A. pioneering science of electricityB. significant journeys of electricityC. the people who invented electricityD. the research which was about electricity57. Why is PresidentBarackObama mentioned inthe bookSimplyElectrifying?A. Because a policy-maker is usually a top dog that can arouse the readers’ interest.B. Because a policy-maker can help promote the better use ofelectricity.C. Because policy-makers can decide the future of the use of electricity on the market.D. Because policy-makers can take control of the economy through electricity.答案:56-57 BB解析:第56题:B 广告信息类文章,首段信息为文章主旨.定位第一段最后一句"for most of us,a world without electricity wouldbeunimaginable〞可见电力在世界上的重要性.第57题:B 根据第三段"and evenPresident Barack Obama, haveshaped howwe useand understand electricityin crucial ways〞可知通过引用奥巴马的例子来强调如何运用和理解电力是至关重要的,故这本书可以帮助人们更好地运用电力.记住,例子本身不能说明自己,而是要论证它想论证的核心道理!BAs countless unmade beds and unfinished homework assignmentsprove, kids need rules. Yethow parents make demandscanpowerfullyinfluence a child’s social skills, psychologists at theUniversityof Virginia recently found after theconclusion of a study investigating thetransitionfrom adolescence to adulthood.Initially 184 13-year-olds filled out multiple surveys, includingone to assess how often theirparents employed psychologically controlling strategies, such as inducing guilt or threatening towithdraw affection. The kids rated, for example, how typical it would be for Dad to suggest that"if Ireally cared for him, Iwould not do things that caused him to worry〞or for Mom to become"less friendly when Idid not see things her way. 〞The researchers followed up with the subjects at ages 18 and 21, asking the young adults tobring along a close friend and, later, a romantic partner if they had one. These pairs were asked to answer hypothetical <假设的> questions that were purposefully written to inspire a differenceof opinion. "We wanted to see whether they could navigate a disagreement in a healthy way, 〞says study leader Barbara Oudekerk, now at the U. S. Department ofJustice’s bureau ofstatistics.In the October issue of Child Development, Oudekerk and her colleagues report that the 13-year-olds who had highly controlling parents struggled in friendly disagreements at age 18. They had difficulty stating their opinions in a confident, reasoned manner in comparison to thekids without controlling parents. And when they did speak up, they often failed to expressthemselves in warm and productive ways.The researchers suspect that pushy parents ruin their child’s ability to learn how to argue hisor her own viewpoint in other relationships. Although parents do need to set boundaries, domineering strategies imply that any disagreement will damage the bond itself. Separatefindings suggest that parents who explain the reasons behind their rules and turn disagreementsinto conversations leave youngsters better prepared for future arguments.The consequences of tense or domineering relationships appear to get worse with time. Thisstudy also found that social difficulties at 18 predicted even poorer communication abilities atage 21. Psychologist Shmuel Shulman of Bar-Ilan University in Israel, who did not participate inthe work, thinks these conclusions convincingly reveal how relationship patterns"carry forward〞into new friendships.58. What will happen to the teenagers with pushy parents?A. They lose social skills.B. They have trouble presenting opinions.C. They express themselves in an aggressive way.D. They fail to inspire a difference ofopinion.59. What does the underlined word"domineering〞in Paragraph 5 mean?A. alternativeB. conservativeC. powerfulD. forceful60. It can be inferred from the findings that parents should.A. communicate with children when setting rulesB. learn new ways to establish new friendshipsC. seek more controlling strategiesD. help children develop abilities to follow rules答案:58-60 BDA解析:第58题:B 第五段首句"The researchers suspect that pushy parents ruin their child’s ability to learn how to argue hisor her own viewpoint in other relationships〞以与第四段"They had difficulty stating their opinions in a confident, reasoned manner in comparison to thekids without controlling parents〞可知pushy parents的孩子是在表达观点上有困难的.第59题:D 本题考察词义理解和句意理解,A项alternative是替代的,B项conservative保守的,powerful强大的,forceful强有力的,强劲的.联系横线所在句"Althoughparentsdo need to set boundaries ,domineeringstrategies imply thatanydisagreement will damage the bond itself〞可知父母制定的界限和策略会使得任何分歧损害纽带本身,因此可排除A,B.C项powerful是褒义词,而根据本文controllingparents给孩子带来的坏影响,可至此处是贬义,故选D, 而且forceful这个词能够和pushy这个强势的词形成"特殊人物发出来的动作要和其身份相吻合〞.第60题:A 根据第五段"Separate findings suggest that parents who explain the reasons behind their rules and turn disagreements into conversations leave youngsters better prepared for future arguments.〞可知研究表明,父母解释规则背后的原因并将分歧转化为交谈,会使年轻人更好地为未来的争论做好准备.故本题选A.CExposing living tissue to subfreezing temperatures for long can cause permanent damage. Microscopic ice crystals <结晶体> cut cells and seize moisture <潮气>, making donor organsunsuitable for transplantation. Thus, organs can be made cold for only a few hours ahead of aprocedure. But a set of lasting new antifreeze compounds <化合物>—similar to those found inparticularly hardy <耐寒的> animals—could lengthen organs’ shelf life.Scientists at the University of Warwick in England were inspired by proteins in some speciesofArctic fish, wood frogs and other organisms that prevent blood from freezing, allowing themto flourish in extreme cold. Previous research had shown these natural antifreeze molecules <分子> could preserve rat hearts at-1.3 degrees Celsius for up to 24 hours. But these proteins areexpensive to extract <提取> and highly poisonous to some species. "For a long time everyoneassumed you had to make synthetic <人造的> alternatives that looked exactly like antifreezeproteins to solve this problem, 〞says Matthew Gibson, a chemist at Warwick who co-authoredthe new research. "But we found that you can design new molecules that function like antifreezeproteins but do not necessarily look like them. 〞Most natural antifreeze molecules have a mixture of regions that either attract or repel water. Scientists do not know exactly how this process prevents ice crystal formation, but Gibsonthinks it might throw water molecules into push-pull chaos that prevents them from tuning intoice. To copy this mechanism, he and his colleagues synthesized spiral-shaped molecules thatwere mostly water-repellent—but had iron atoms at their centers that made them hydrophilic, orwater-loving. The resulting compounds were surprisingly effective at stopping ice crystals fromforming. Some were also harmless to the roundworm Caenorhabditis elegans, indicating theymight be safe for other animals."These compounds are really cool because they are not proteins—they are other types ofmolecules that nonetheless can do at least part of what natural antifreeze proteins do, 〞says Clarado Amaral, a biologist at Mount St. Joseph University, who was not involved in the research. Gibson’s antifreeze compounds will still need to be tested in humans, however, and may be onlypart of a solution. "We don’t have the whole picture yet, 〞do Amaral adds. "It’s not just onemagical compoun d thathelps freeze-tolerant organisms survive. It’s a whole suite ofadaptations.61. What will happen iforgans are kept for a long time in temperatures below zero?A. They will have ice crystal formation inside.B. They will not suffer permanent damage.C. They will have longer shelf life.D. They will be fit for transplantation.62. What can we learn about natural antifreeze proteins?A. They look like Gibson’s antifreeze compounds.B. They are composed ofantifreeze molecules harmless to other species.C. They are spiral-shaped and have iron atoms at their centers.D. They can be found in organisms living in freezing cold weather.63. How are antifreeze molecules prevented from ice crystals?A. By creating compounds both water-repellent and water-loving.B. By extracting the proteins from some hardy animals.C. By making synthetic alternatives like antifreeze proteins.D. By copying spiral-shaped molecules mostly water-resistant.64. What’s the main idea of the passage?A. Push-pull chaos might prevent water molecules from turning into ice.B. The final solution to preserving donor organs has been found recently.C. Chemicals inspired by Arctic animals could lengthen organs’ shelf life.D. Gibson’s antifreeze compounds can do what natural anti freeze proteins do.答案:61-64 ADAC解析:第61题A below zero与原文subfreezing temperatures同义替换,定位第一段,BCD与原文矛盾,根据第一段第二句Microscopic ice crystals cut cells and seize moisture选A.第62题D 根据第二段结尾do not necessarily look like them排除A根据第二段第五行highly poisonous to some species排除B.选项C说得是人造化合物并不是natural antifreeze proteins故排除.根据文章第一段结尾第二段,natural antifreeze proteins是在住在极寒环境的动物组织内,选D.第63题A 根据第三段第一行either attract or repel water同义替换故选A.第64题C 根据最后一段可知这个方案并不是final solution且仍旧需要进一步研究,科学研究类首段是主旨,这种受耐寒动物体启发而人工合成的化合物有可能lengthen organs’shelf life故选C.DIremember my childhood summers fondly, as many ofus do. Those golden days in which Iwould leave the house after a still sleepy, leisurely breakfast and come home only for lunch inthe middle of a day spent entirely outdoors. We did not live in town and, thus, playmates werelimited to siblings <兄弟姐妹> and the cousins who lived down the road.Our backyard became the playground in which our imaginations would run wild—turningthose few acres into magical forests, the creek <小溪> into a violent river and our trusty dog, Rex, into the many roles of horse, monster and any other creature that we children did not want toplay. By the end ofthe three months ofsummer break we weresunburned from our hours in thesun, full of the memories of a thousand magical moments and bonded to our siblings in a way t hat winter’s forced hiber nation <冬眠> never seemed to connect us.Today, I live on the same acreage thatI did as a child. My children have the blessing ofhaving the same grassy patchesto scratchtheir bare feet as they run through it, the same creek tostomp<跺脚>through, and not the same dog —but their very own energetic pup to imagine away the days with.However, this is not the same world as it was twenty, thirty years ago. There are screenseverywhere in the house to demand attention—televisions with hundreds ofchannels, computerswith access to a thousand entertaining sites, tablets stocked with apps. There is also no longer theexpectation of a stretch of an unscheduled three months. Their school friends tell competitivestories of carefully planned vacations, spending time traveling to all of the local attractions—various parks, the zoo, the science center, all of the festivals which come breezing through town. On the very first day of school they will be asked to list their favorite activities of the summerand no longer are these lists filled with things like finding wood to make a bridge over a creek ora day spent in imaginative play with their siblings. The lists are now full of trips, overscheduleddays and"camps〞that no longer offer a stay in nature.Our children have become used to being entertained every minute. In our house, we havelimits on electronics and kick the kids outside on a nice day. Even as we try as parents to setlimits and get our children out in nature, the new cry of childhood seems to be"I’m bored,〞which is not really just meaning"I’m bored,〞"but"Please find something to entertain me, asI nolonger can entertain myselfeven for a short period oftime.〞Our children no longer know how tosit in silence, entertain themselves while even waiting for a few minutes and have lost the awe ofnature as they have become addicted to screen time.We have made a choice in this household to do what is no longer expected of children inmany households—we will ensure that there are days of "boredom.〞We refuse to spend ourdays scheduling our children’s every hour. There will be many days with no plans at all, when they will be sent outside with only the grass and the trees and their own imaginations to entertainthem.The screens will be turned off and our children will find that times of quiet can bejust as oreven more entertaining. They will bond with their brother and sister, making memories that theywill replay in their minds well into adulthood. Even though sunscreen will be religiously applied, they will leave summer with sunburned and scratches coming from climbing trees, stompingthrough creeks and chasing the dog in the field.This summerI will be giving my children the greatest gift of all—boredom. For insideboredom is the gift of getting to know your own mind, of finding comfort and joy in nature and in the realization that the greatest gifts are experience, not things.65. From the first two paragraphs we can know that the author.A. participated in many organized activitiesB. enjoyed an unscheduled vacationC. explored magical forests and a violent riverD. realized the strength of patience66. The author thinks today’s children’s activities are.A. less meaningfulB. less accessibleC. more related to natureD. more in line with the nature ofplay67. What is the real reason for children’s feeling of boredom?A. Children are addicted to screen time.B. Children are limited to using electronics.C. Children have no patience with everything.D. Children lack the experience ofexploring entertainment.68. What is the author’s attitude towards his children’s childhood?A. Sympathetic.B. Envious.C. Unsatisfactory.D. Indifferent.69. What is he author’s purpose to ensure children the days of"bor edom〞?A. To keep children away from electronics.B. To encourage children to climb trees and stomp through creeks.C. To set aside more time to improve their academic performance.D. To provide children with the opportunity to seek happiness in nature.70. What might be the best title ofthe passage?A. The gift of boredomB. The memory ofchildhoodC. The attraction of natureD. The experience of two generations。
江苏省苏锡常镇四市2018届高三教学情况调研(一)(解析版)
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江苏省苏锡常镇四市2018届高三教学情况调研单项选择题:1.下列各式属于定义式的是A. 加速度a =F mB. 电动势E n t ∆Φ=∆C. 电容4S C kd επ=D. 磁感应强度F B IL= 【答案】D【解析】 F a m=是牛顿第二定律的表达式,不是加速度的定义式,故A 错误.电动势E n t ∆Φ=∆是法拉第电磁感应定律的表达式,不是定义式,选项B 错误;电容4S C kdεπ= 是电容的量度公式,是定义式,选项C 错误;磁感应强度F B IL =是磁感应强度的定义式,采用比值法定义,故D 正确.故选D.2.如图所示为从静止开始做直线运动的物体的加速度—时间图象,关于物体的运动下列说法正确的是( )A. 物体在t =6 s 时,速度为0B. 物体在t =6 s 时,速度为18 m/sC. 物体运动前6 s 的平均速度为9 m/sD. 物体运动前6 s 的位移为18 m【答案】B【解析】物体在t =6s 时,速度为1v 66/18/2at m s m s ==⨯⨯=,选项B 正确,A 错误;因物体做变加速运动,无法求解前6s 的位移和平均速度,故选B.3.高空滑索是勇敢者的运动.如图所示一个人用轻绳通过轻质滑环悬吊在足够长的倾斜钢索上运动(设钢索是直的),下滑过程中到达图中A 位置时轻绳与竖直线有夹角,到达图中B 位置时轻绳竖直向下.不计空气阻力,下列说法正确的是A. 在A位置时,人的加速度可能为零B. 在A位置时,钢索对轻绳的作用力可能小于人的重力C. 在B位置时,钢索对轻环的摩擦力为零D. 若轻环在B位置突然被卡住,则此时轻绳对人的拉力等于人的重力【答案】B【解析】在A位置时,人受到重力和线的拉力,合力沿斜面向下,不为零,则加速度不可能为零;拉力T=mgtanθ,当θ<450时,T<mg,故A错误,B正确;在B位置时,细绳的拉力竖直,则人匀速下滑,此时钢索对轻环的摩擦力等于重力的分力mgsinθ,选项C错误;若轻环在B位置突然被卡住,则此时人将做圆周运动,根据T-mg=m2vL可知,轻绳对人的拉力大于人的重力,选项D错误;故选B.4.一带电粒子在电场中仅受静电力作用,做初速度为零的直线运动,取该直线为x轴,起始点O为坐标原点,其电势能E p与位移x的关系如图所示,下列图象中合理的是【答案】D【解析】粒子仅受电场力作用,做初速度为零的加速直线运动,电场力做功等于电势能的减小量,故:F P E x=,即pE x ﹣图象上某点的切线的斜率表示电场力; A 、pE x ﹣ 图象上某点的切线的斜率表示电场力,故电场力逐渐减小,根据EF q=,故电场强度也逐渐减小,A 错误; B 、根据动能定理,有:k F?x E =,故kE x ﹣图线上某点切线的斜率表示电场力;由于电场力逐渐减小,与B 图矛盾,B 错误;C 、按照C 图,速度随着位移均匀增加,根据公式2202v v ax -=,匀变速直线运动的2x v ﹣图象是直线,题图v x ﹣图象是直线;相同位移速度增加量相等,又是加速运动,故增加相等的速度需要的时间逐渐减小,故加速度逐渐增加;而电场力减小导致加速度减小;故矛盾,C 错误;D 、粒子做加速度减小的加速运动,D 正确;故选D 。
江苏省苏锡常镇四市届高三教学情况调研一英语试题解析版
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江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段做题时,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纸上。
第一节(共5 小题;每小题1分,满分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. What does the woman think of the restaurant?A. It is noisy.B. It is quiet.C. It is terrible.2. What’s the probable relationship between the two speakers?A. Mother and child.B. Teacher and student.C. Husband and wife.3. What does the woman advise the man to do?A. See her favorite band.B. Go to the concert.C. Do experiments in the lab.4. What most probably causes the woman’s headache?A. Too little seep.B. The strong sunshine.C. Too much medicine.5. What does the man mean?A. The woman can use his glasses.5听第6听第78. Where does the conversation take place?A. In a cinema.B. In a restaurant.C. In an office.9. What did the speakers just do?A. They had an interview.B. They met a funny woman.C. They saw a movie.10. What do we know about the man?A. He is not interested in the movie actually.B. He knows why he hasn’t received a reply.C. He is worried about the chance of getting a job.听第8段材料,回答第11至13题。
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)
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江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】突出做题时,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纸上。
第一节(共5 小题;每小题1分,满分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.What does the woman think of the restaurant?A.It is noisy.B.It is quiet.C.It is terrible.2.What’s the probable relationship between the two speakers?A.Mother and child.B.Teacher and student.C.Husband and wife.3.What does the woman advise the man to do?A.See her favorite band.B.Go to the concert.C.Do experiments in the lab.小题5听第6A.TheB.The candidate’s way of shaking hands.C.The candidate’s way of introducing herself.听第7段材料,回答第8至10题。
8.Where does the conversation take place?A.In a cinema.B.In a restaurant.C.In an office.9.What did the speakersjust do?A.They had an interview.B.They metafunnywoman.C.Theysawamovie.10.What do we know about the man?A.He is not interested in the movie actually.B.He knows why he hasn’t received a reply.C.He is worried about the chance of getting ajob.听第8段材料,回答第11至13题。
2018年苏锡常镇四市一模试题和答案
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2017-2018学年度苏锡常镇四市高三教学情况调研(一)化 学2018.03 可能用到的相对原子质量: H-1 C 一 12 N-14 0 —16 S-32 CI-35.5Na-23 Mg-24 A1-27 Fe-56 Cu-642n-65 选择题单项选择题:本题包括 10小题,每小题2分,共计20分。
每小题只有一个选项符合题意。
1 •每年3月22日为“世界水日”。
下列有关“废水”的处理正确的是 A •工业废水无需处理,直接用于农业灌溉 B •废水经氯气消毒后,即可安全再利用 C .寻找方式来减少和再利用废水可节约水资源 D .收集和处理废水,弊大于利 2 •下列有关化学用语的表示,正确的是 A •氨基(-NH2)的电子式:C •二氧化碳分子的比例模型:D .碳酸电离的方程式:民4…•昭'3•下列有关物质性质与用途具有对应关系的是 A •晶体硅熔点高硬度大,可用于制造半导体材料 B 碳酸钠溶液显碱性,可用于除去金属器件表面的油脂 C ・碳酸氢钠能与碱反应,可用作焙制糕点的膨松剂 D •明矶溶于水能形成胶体,可用于自来水的杀菌消毒4•实验室制各氨气、收集、验证其还原性并进行尾气处理的装置和原理能达到实验目的的是A •用装置甲制取氨气B .用装置乙收集氨气时气体应该从a 口进b 口出C •装置丙中黑色固体变成红色时还原产物一定为铜B •钾离子的结构示意图D .可以用装置丁吸收氨气,进行尾气处理5•短周期主族元素X、Y、Z、W原子序数依次增大,其中X、Y处于同一周期且相邻, 素的原子在短周期中原子半径最大,W是地壳中含量最多的金属元素。
下列说法正确的是A .原子半径:r(X)<r(Y)<r(W)<r(Z)B . Z和X组成的化合物中一定不含共价键C. W的单质还原性比Z的强D . Y、Z、W三种元素组成的化合物可能是Z3WY66. 下列指定反应的离子方程式正确的是A .石灰水中加入过量小苏打溶液:HCM+CdSOFT—CuCOU+H^OB .将铜丝插入足量浓硝酸中:丨…■ ■・C .将S02通入少量氨水中:|從:-I 1 I '-D .用双氧水从酸化的海带灰浸出液中提取碘:21 +11203 —11420117. 在给定的条件下,下列选项所示的物质间转化均能实现的是A.MgCQj 卫J M承;以aq]虹刑、MgB.NaClfaq) 恥想.豳£0树c. S竺业■ SOj H1Q >D. M働⑷驰叫NaAlOj{a(|} ■加叭射8电石(主要成分为CaC2)是重要的基本化工原料。
2018届苏锡常镇四市一模语文(含答案附加)
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2017-2018学年度苏锡常镇四市高三教学情况调研〔一语文2018年3月注意:本试卷共6页.20小题.满分160分。
考试时间150分钟。
请按照题号将答案填涂或书写在答题卡相对应的答题区域内.将答案直接书写在本试卷上无效。
一、语言文字运用〔15分1.在下面一段话的空缺处依次填入词语.最恰当的一组是〔3分陶器从最初的零星出现到大规模、大范围地生产.有特定的社会文化▲。
陶器制作历史悠久.累积重重.要从▲、交互作用的社会文化现象中对其▲.仍任重道远。
A.因缘错综复杂寻根究底B.因缘错综复杂追本溯源C.姻缘参差不齐追本溯源D.姻缘参差不齐寻根究底2.下列诗句中.没有..使用夸张手法的一项是〔3分A.五岭逶迤腾细浪.乌蒙磅礴走泥丸B.力拔山兮气盖世.时不利兮骓不逝C.欲把西湖比西子.淡妆浓抹总相宜D.金樽清酒斗十千.玉盘珍羞直万钱3.书院是中国古代民间教育机构.下列对联中不适合...悬挂在书院的一项是〔3分A.东林讲学以来必有名世南方豪杰之士于兹为群B.考古证今致用要关天下事先忧后乐存心须在秀才时C.千百年楚材导源于此近世纪湘学与日争光D.人至上圣贤书可耕可读德为绳祖宗恩可报可酬4.在下面一段文字横线处填入语句.衔接最恰当的一项是〔3分古典小说是先哲留给我们的精神财富.我们应当很好地去学习和应用。
既然是古典小说.是一定历史阶段的产物.▲.▲.▲.▲.▲。
如果善于学习.善者固然可以育人.其不善者经过批判分析.也可能发挥其反面教材的作用。
①就不免带有历史性的局限②即使优秀的作品也难免有不纯之处③择善者而从之.其不善者而去之④有精华也会有糟粕⑤需要有分析、有批判地进行学习A.①④②⑤③B.①②③④⑤C.①④②③⑤D.⑤③④①②5.下列对北京2022年冬奥会会徽"冬梦"理解不.恰.当.的一项是〔3分A.以汉字"冬"为灵感来源.借用书法元素.彰显了中国传统文化底蕴。
B.用汉字笔画的变形展现冰雪运动员的英姿.体现了冬奥会运动项目的特征。
2018江苏苏锡常镇四市高三调研(一)数学试题答案
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2021-2021学年度苏锡常镇四市高三教学情况调研〔一〕数学I试题一、填空题:本大题共14个小题,每题5分,共70分.请把答案填写在做题. 卡相应位置上.1.集合A ={-1,1}, B={Z0,1},那么集合AP|B=.2.复数z满足z j =3 -4i 〔i为虚数单位〕,那么z =.2 2X V3 .双曲线一=1的渐近线方程为4 34.某中学共有1800人,其中高二年级的人数为600.现用分层抽样的方法在全校抽取n人, 其中高二年级被抽取的人数为21 ,那么n =.5.将一颗质地均匀的正四面体骰子〔每个面上分别写有数字1, 2, 3, 4〕先后抛掷2次,观察其朝下一面的数字,那么两次数字之和等于6的概率为.6.如图是一个算法的流程图,那么输出S的值是.2 37.假设正四棱锥的底面边长为2cm,侧面积为8cm ,那么它的体积为cm .8.设S n是等差数列{4}的前n项和,假设az+a4=2, 5+S4 =1 ,那么劣.=.2 39.a >0 , b>0,且一+—= JOb ,那么ab的最小值是 .a btan A 3c-b10.设三角形ABC的内角A, B, C的对边分别为a, b, c,■tanA = V c—b ,那么tanB bcos A = ________a -e x ,x :: 111 .函数f(x)=«4 (e 是自然对数的底).假设函数y = f (x)的最小值是4, x , x ,1x那么实数a 的取值范围为 ___________ .12 .在AABC 中,点P 是边AB 的中点, CP|=J3, CA1 = 4, ZACB=2-,那么 CP CA =.2213 .直线l : x —y+2=0与x 轴交于点 A,点P 在直线l 上,圆C : (x-2) +y =2 上有且仅有一个点 B 满足AB_LBP,那么点P 的横坐标的取值集合为 .14 .假设二次函数f (x) =ax 2 +bx+c (a >0)在区间[1,2]上有两个不同的零点, 那么49的取 a 值范围为.二、解做题:本大题共6小题,共计90分.请在做题卡指定区域 内作答,解答 应写出文字说明、证实过程或演算步骤.(1)假设角口的终边过点(3,4),求a b 的值;⑵假设a//b,求锐角u 的大小.16.如图,正三棱柱 ABC -A 1B 1C 1的高为而,其底面边长为2.点M , N 分别是棱AG , AC 的中点,点D 是^^CC I 上靠近C 的三等分点(2) AD _L 平面 ABN .15.向量b=(1,sin(: -)).42 217.椭圆C: '+%=1 (a Ab A0)经过点(J3,1),.火),点A是椭圆的下顶点. a2 b2- 2 2(1)求椭圆C的标准方程;(2)过点A且互相垂直的两直线11, 12与直线y = x分别相交于E, F两点,OE =OF ,求直线l i的斜率.18.如图,某景区内有一半圆形花圃,其直径AB为6, O是圆心,且OC_LAB.在OC上2二_有一座欣赏学Q,其中ZAQC = —.方案在BC上再建一座欣赏亭P,记.POB - 乂0「二:二n, ,一一..(1)当日=一时,求/OPQ的大小;3(2)当NOPQ越大,游客在欣赏亭P处的欣赏效果越佳,求游客在欣赏亭P处的欣赏效果最正确时,角8的正弦值.19.函数f (x) =x3+ax2+bx+c , g(x)=lnx.(1)假设a=0, b = -2,且f (x)之g(x)恒成立,求实数c的取值范围;(2)假设b = -3,且函数y = f(x)在区间(一1,1)上是单调递减函数.①求实数a的值;f (x) f (x) _ g(x)②当c =2时,求函数h(x) = < (人()g()的值域. g(x), f (x):二g(x)20.S n是数列{a n}的前n项和,a1 =3,且2S n =a n由—3(n= N ).(1)求数列{a n}的通项公式;(2)对于正整数i , j , k(i < j <k),九aj , 6ai , ^a k成等差数列,求正整数% , 口的值;〔3〕设数列{b n }前n 项和是T n ,且满足:对任意的正整数 n ,都有等式一n 1 一 一 Tn 1a 〔b n +a 2b n°+a 3b nN +…3门〞=34n —3成立.求满足等式一=—的所有正整数n .a n 32021-2021学年度苏锡常镇四市高三教学情况调研〔一〕数学n 〔附加题〕21.【选做题】在A, B, C, D 四小题中只能选做两题,每题 10分,共计20 分.请在做题卡指定区域内作答,解答时应写出文字说明、证实过程或演算步骤. A.选彳4-1 :几何证实选讲如图,AB 是圆O 的直径,D 为圆O 上一点,过点D 作圆O 的切线交AB 的延长线于点 C , 且满足DA = DC .〔2〕假设AB =2,求线段CD 的长. B.选彳4-2 :矩阵与变换…4 0 1 矩阵A=, B = 〕1。
2018年苏锡常镇高三一模物理答案
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2017~2018学年度苏锡常镇四市高三教学情况调研(一)物理参考答案及评分标准2018.03第Ⅰ卷 (选择题 共31分)一、单项选择题:本题共 5小题,每小题 3 分,共 15 分.每小题只有一个....选项符合题意. 1.D 2.B 3.B 4.D 5.C二、多项选择题:本题共 4小题,每小题 4 分,共 16分,每小题有多个选项符合题意.全部选对的得 4 分,选对但不全的得 2 分,错选或不答的得 0 分.6.AD 7.BD 8.AC 9.BC 第II 卷 (非选择题 共89分)三、简答题:本题分必做题(第10、11题)和选做题(第12题)两部分,共计42分.请将解答填写在答题卡相应的位置.【必做题】10.(1)由图知第6条刻度线与主尺对齐,d =2 mm +6×0.05 mm =2.30 mm (2分)(2)遮光条到光电门的距离 (2分)(3) 1t 2 (2分) (4) A C (11.(1)实物连线如图所示 (2分)(2)< (2分) < (2分) (3) U B (2分)A B U I (2分)12.【选做题】 本题包括A 、B 、C 三个小题,请选定其中两题,并在相应的位置作答.若三题都做,则按A 、B 两题评分.A .(选修模块3-3)(12分) (1)AC (4分) (2) 增大(2分) 不变 (2分)(3)①由题意可知ΔU=a ΔT=2aT 0 (1分)②设温度降低后的体积为V 2,则02003V V T T (1分) 外界对气体做功W=p 0(V 0-V 2) (1分) 热力学第一定律得-ΔU=W-Q解得Q=23p 0V 0+2aT 0 (1分) 图丙B .(选修模块3-4)(12分)(1)BC (4分) (2)c (2分) 大于 (2分)(3)①n=sin 45sin 30o o(1分) v =c n (1分)②sin C=1n =2,C=45° (1分) 45°-30°=15°,顺时针旋转15° (1分) C .(选修模块3-5)(12分) (1)AD (4分) (2)mc 2 (2分)0112e e γ-+→ (2分) (3)自由落体运动阶段 22v h g= (1分) 从绳中刚产生作用力到绳长达到最长的过程,取向下为正方向,根据动量定理有0mgt Ft mv -=- (2分)解得F mg = (1分) 四、计算题:本大题共3小题,共47分.解答时请写出必要的文字说明、方程式和重要的演算步骤,只写出最后答案的不能得分.有数值计算的,答案中必须写出数值和单位.13.解:(1)由图乙知t =π×10﹣3s 时受电线圈中产生的电动势最大为E m =20V (1分) 线圈中产生感应电流的大小为 m t m =2.0A E I I R r==+ (2分) 由楞次定律可以得到此时c 端电势高 (2分)(2)通过电阻电流的有效值为 AI = (2分) 电阻在一个周期内产生的热量 Q =I 2RT =5.7×10﹣2J (2分)(3)线圈中感应电动势的平均值 E n tφ∆=∆ (2分) 通过电阻电流的平均值为 E I R r=+ (1分) 通过电阻的电荷量 q I t =∆g (1分) 由题图乙知,在4T ~34T 的时间内,Δϕ=4×10﹣4Wb (1分) 解得 3210C q nR r φ-∆==⨯+ (1分)14.解:(1)由动能定理得 2F 12AF mgh +W m v =人 (2分) 2F 1=3150J 2AF W m mgh v 人-=(2分) (2)从D 点到F 点,根据动能定理有22F D 11[(1cos60)]22mg h+R m m v v --=- (2分)其中U F 取为最小 v F = 54 km/h = 15 m/s在D 点: 2D N v F -mg =m R(2分) 解得运动员在D 点承受的支持力:2o F N 2[+(1-cos60)]g h R F =mg m Rv ++ =7300N (2分) (3)两段运动的平均速度之比 12::=2:v v 12AB EF t t =3 (1分) 设滑到B 点速度为v 1 ,则滑到E 点速度也为v 1 ,又设滑到F 点速度为v 2 .则由 1AB =2v v , 12EF =2v v v +,得:v 1 =2v 2 (2分) 由 111v a =t , 1222v v a =t - (2分) 得:a 1 :a 2 = 2:3 (1分) 15. 解:(1)因为粒子1和粒子2在同一点垂直分界线进入区域II ,所以粒子1在区域I 运动半径为R 1=l (1分)粒子2在区域I 运动半径为R 2由几何 关系知22132R R l =+ (1分) 23R l = (1分)OA == (1分)(2)要满足题设条件,区域II 中电场方向必须平行于分界线斜向左下方(1分)两粒子进入电场中都做类平抛运动,区域II 的宽度为d ,出电场时,对粒子1沿电场方向的运动有13E 1tan 30v v ==︒1111q E d m v =⋅ (1分) 又 21111v q v B m l = 所以111q m Blv = (1分)1E d= (1分) (3)粒子2经过区域II电场加速获得的速度大小为24E tan 60v v ==︒ 对粒子2在电场中运动有22223q E d m v =⋅ (1分) 又 222223v q v B m l = 所以2223v q m Bl= (1分) 所以 21v v = (1分)(4)粒子1经过区域III 时的速度大小为1312sin 30v v v ==︒有 2313132v Bq v m R = 3R l = (1分) 粒子2经过区域III时的速度大小为224cos303v v ==︒ (1分) 有 2424242v Bq v m R =4R = (1分) 两粒子要在区域IV 运动后到达同一点引出,O 3圆对应的圆心角为60゜,O 4圆对应的圆心角为120゜3E 4E 34122cos30++tan 30tan 6022v v S S d d R R v v +︒=⋅+⋅︒︒ (1分)2d S =- (1分)。
江苏省苏锡常镇四市届高三教学情况调研一英语试题解析版
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江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生。
根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力。
该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养。
本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系。
单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考。
作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视。
所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平。
第一卷(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纸上。
第一节(共5?小题;每小题1分,满分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. What?does?the?woman?think?of?the?restaurant?A. It?is?noisy.B. It?is?quiet.C. It?is?terrible.2. What’s?the?probable?relationship?between?the?two?speakers?A. Mother?and?child.B. Teacher?and?student.C. Husband?and?wife.3. What?does?the?woman?advise?the?man?to?do?A. See?her?favorite?band.B. Go?to?the?concert.C.Do?experiments?in?the?lab.4. What?most?probably?causes?the?woman’s?headache?A. Too?little?seep.B. The?strong?sunshine.C.Too?much?medicine.5. What?does?the?man?mean?A. The?woman?can?use?his?glasses.B. The?dictionary?is?not?of much?help.C. He?has?to?use?a?pair?of glasses.第二节(共15?小题;?每小题1分,满分15?分)听下面5?段对话或独白。
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)

江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生。
根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力。
该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养。
本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系。
单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考。
作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视。
所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平。
第一卷(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纸上。
第一节(共5 小题;每小题1分,满分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. What does the woman think of the restaurant?A. It is noisy.B. It is quiet.C. It is terrible.2. What’s the probable relationship between the two speakers?A. Mother and child.B. Teacher and student.C. Husband and wife.3. What does the woman advise the man to do?A. See her favorite band.B. Go to the concert.C. Do experiments in the lab.4. What most probably causes the woman’s headache?A. Too little seep.B. The strong sunshine.C. Too much medicine.5. What does the man mean?A. The woman can use his glasses.B. The dictionary is not of much help.C. He has to use a pair of glasses.第二节(共15 小题; 每小题1分,满分15 分)听下面5 段对话或独白。
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)

江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生。
根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力。
该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养。
本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系。
单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考。
作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视。
所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平。
第一卷(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纸上。
第一节(共5?小题;每小题1分,满分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. What?does?the?woman?think?of?the?restaurantA. It?is?noisy.B. It?is?quiet.C. It?is?terrible.2. What’s?the?probable?relationship?between?the?two?speakersA. Mother?and?child.B. Teacher?and?student.C. Husband?and?wife.3. What?does?the?woman?advise?the?man?to?doA. See?her?favorite?band.B. Go?to?the?concert.C. Do?experiments?in?the?lab.4. W hat?most?probably?causes?the?woman’s?headacheA. Too?little?seep.B. The?strong?sunshine.C. Too?much?medicine.5. What?does?the?man?meanA. The?woman?can?use?his?glasses.B. The?dictionary?is?not?of much?help.C. He?has?to?use?a?pair?of glasses.第二节(共15?小题;?每小题1分,满分15?分)听下面5?段对话或独白。
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)

江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生。
根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力。
该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养。
本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系。
单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考。
作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视。
所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平。
第一卷(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纸上。
第一节(共5 小题;每小题1分,满分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. What does the woman think of the restaurant?A. It is noisy.B. It is quiet.C. It is terrible.2. What’s the probable relationship between the two speakers?A. Mother and child.B. Teacher and student.C. Husband and wife.3. What does the woman advise the man to do?A. See her favorite band.B. Go to the concert.C.Do experiments in the lab.4. What most probably causes the woman’s headache?A. Too little seep.B. The strong sunshine.C. Too much medicine.5. What does the man mean?A. The woman can use his glasses.B. The dictionary is not of much help.C. He has to use a pair of glasses.第二节(共15 小题; 每小题1分,满分15 分)听下面5 段对话或独白。
江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)

江苏省苏锡常镇四市2018届高三教学情况调研(一)英语试题(解析版)回眸一笑萌死人,老师们求求你们看看我吧,轻松一下呗!【总览】2018年苏南一模依据江苏2018考试说明,参考现行牛津教材,结合现阶段学生复习的实际状况,从听、说、读、写、看等各个方面全方位地考察学生。
根据最新颁布的普通高中英语课程标准,从语言能力、文化意识、思维品质和学习能力等角度来考察学生的应试能力。
该试卷秉承了2017 年高考试卷的特点,突出三大主题:科技发展、教育减负和文化素养,传递正能量,提高新素养。
本套试题材料情景设置丰富多样,语篇选择贴近考生实际,试题设问层次分明,理顺了考试与教材的关系。
单选、写作非常接近高考难度,阅读理解难度略低于高考,完形难度高于高考,任务型易于高考。
作文很接地气,写的是中国文化的输出,体现了对中国传统文化的重视。
所以,总体上整套试卷难度与2017 年高考难度基本契合,也就是说,这套试卷能够很好地、有效地检测目前阶段学生的真实英语水平。
第一卷(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纸上。
第一节(共5 小题;每小题1分,满分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. What does the woman think of the restaurant?A. It is noisy.B. It is quiet.C. It is terrible.2. What’s the probable relationship between the two speakers?A. Mother and child.B. Teacher and student.C. Husband and wife.3. What does the woman advise the man to do?A. See her favorite band.B. Go to the concert.C. Do experiments in the lab.4. What most probably causes the woman’s headache?A. Too little seep.B. The strong sunshine.C. Too much medicine.5. What does the man mean?A. The woman can use his glasses.B. The dictionary is not of much help.C. He has to use a pair of glasses.第二节(共15 小题; 每小题1分,满分15 分)听下面5 段对话或独白。
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2018年苏锡常镇四市一模试题和答案2017-2018学年度苏锡常镇四市高三教学情况调研(一)化学2018.03可能用到的相对原子质量:H-1 C一12 N-14 0—16 S-32 Cl-35.5Na-23 Mg-24 A1-27 Fe-56 Cu-64 2n-65选择题单项选择题:本题包括10小题,每小题2分,共计20分。
每小题只有一个选项符合题意。
1.每年3月22日为“世界水日”。
下列有关“废水”的处理正确的是A.工业废水无需处理,直接用于农业灌溉B.废水经氯气消毒后,即可安全再利用C.寻找方式来减少和再利用废水可节约水资源D.收集和处理废水,弊大于利2.下列有关化学用语的表示,正确的是A.氨基(-NH2)的电子式:B.钾离子的结构示意图:C.二氧化碳分子的比例模型:D.碳酸电离的方程式:3.下列有关物质性质与用途具有对应关系的是A.晶体硅熔点高硬度大,可用于制造半导体材料B碳酸钠溶液显碱性,可用于除去金属器件表面的油脂C.碳酸氢钠能与碱反应,可用作焙制糕点的膨松剂D.明矾溶于水能形成胶体,可用于自来水的杀菌消毒4.实验室制各氨气、收集、验证其还原性并进行尾气处理的装置和原理能达到实验目的的是A.用装置甲制取氨气B.用装置乙收集氨气时气体应该从a口进b口出C.装置丙中黑色固体变成红色时还原产物一定为铜D.可以用装置丁吸收氨气,进行尾气处理5.短周期主族元素X、Y、Z、W原子序数依次增大,其中X、Y处于同一周期且相邻,Z元素的原子在短周期中原子半径最大,W是地壳中含量最多的金属元素。
下列说法正确的是A.原子半径:r(X)<r(Y)<r(W)<r(Z) B.Z和X组成的化合物中一定不含共价键C.W的单质还原性比Z的强D.Y、Z、W三种元素组成的化合物可能是Z3WY66.下列指定反应的离子方程式正确的是A.石灰水中加入过量小苏打溶液:B.将铜丝插入足量浓硝酸中:C.将SO 2通入少量氨水中:D.用双氧水从酸化的海带灰浸出液中提取碘:7.在给定的条件下,下列选项所示的物质间转化均能实现的是8.电石(主要成分为CaC2)是重要的基本化工原料。
己知2000℃时,电石生产原理如下:以下说法不正确的是A.反应①B.反应平衡常数K=C.2000℃时增大压强,K1减小,K2增大D.反应9.常温下,下列各组离子在指定溶液中一定能大量共存的是A.的溶液中:B.通入大量CO 2的溶液中:C.c(ClO-)=l.0 mol/ L的溶液中:D.能使酚酞变红的溶液中:10.工业上用丁烷催化脱氢制备丁烯:将丁烷和氢气以一定的配比通过填充有催化剂的反应器(氢气的作用是活化催化剂),反应的平衡转化率、产率与温度、投料比有关。
下列判断不正确的是A.由图甲可知,x小于0.1B.由图乙可知,丁烯产率先增大后减小,减小的原因是氢气是产物之一,随着n(氢气/n(丁烷)增大,逆反应速率减小C.由图丙可知产率在590℃之前随温度升高而增大的原因可能是温度升高平衡正向移动D.由图丙可知,丁烯产率在590℃之后快速降低的主要原因为丁烯高温分解生成副产物不定项选择题:本题包括5小题,每小题4分,共计20分。
每小题只有一个或两个选项符合题意。
若正确答案只包括一个选项,多选时,该小题得0分:若正确答案包括两个选项,只选一个且正确的得2分,选两个且都正确的得满分,但只要选错一个,该小题就得0分。
11.下列叙述中不正确的是A.以铁作阳极,铂作阴极,电解饱和食盐水,可以制备烧碱B.25℃下,在NH3·H2O稀溶液中加水稀释,的值不变C.工业生产硫酸时,接触室催化氧化S02时使用热交换器可以充分利用热量,降低生产成本D.反应室温下不能自发进行,则△H>012.羟甲香豆素是一种治疗胆结石的药物。
合成其的两种中间体及羟甲香豆素的结构如下:下列有关说法正确的是A.化合物X和Y分子各含有1个手性碳原子B.化合物Y能发生加成反应、取代反应和消去反应C.1mol羟甲香豆素最多可与2moINaOH反应D.化合物X和羟甲香豆素分别与溴水反应,最多消耗的Br2的物质的量之比为1:l13.根据下列实验操作和现象所得到的结论正确的是14.常温时,向20 mL0.1000mol/L H2C2O4溶液中滴加0.1000 mol.L_1NaOH溶液,混合溶液pH随加入NaOH溶液体积的变化如图所示。
下列有关叙述正确的是A.点①、③、④所示溶液中,点③所示溶液H2O的电离程度最小B.点②所示溶液中:C点③所示溶液中:D.滴定过程中可能出现:15.一定温度下(T2> T l),在3个体积均为2.0 L的恒容密闭容器中反应2NO(g)+ Cl2(g) = 2ClNO(g)(正反应放热)达到平衡,下列说法正确的是A.达到平衡时,容器I与容器II中的总压强之比为1:2B.达到平衡时,容器III中ClNO的转化率小于80%C.达到平衡时,容器II中c(ClNO(/ c(NO)比容器I中的大D.若温度为T l,起始时向同体积恒容密闭容器中充入0.20 mol NO(g)、0.2 mol Cl2(g)和0.20 mol CINO(g),则该反应向正反应方向进行非选择题16.(12分)以菱锰矿(主要成分还含有等杂质)为原料制各二氧化锰的工艺流程如下:已知草酸钙、草酸镁不溶于水。
(1)写出“氧化”时发生反应的离子方程式:__ 。
(2)“中和”的目的是将铁、铝元素转化为沉淀除去,化合物X可用(写一种物质的化学式)。
(3)该工艺流程中固体l和固体2均需用水洗涤,目的是。
(4)“除杂”时,除去的金属离子有。
(5)“电解”原理如右图所示,阳极的电极反应式为(6)该流程中可以循环使用的物质有。
17.15分)麻黄素是中枢神经兴奋剂,其合成路线如下图所示。
(1)F中的含氧官能团名称为和。
(2)E的结构简式为。
(3)写出B-C的化学反应方程式:。
(4) F-G历经两步反应,反应类型依次为、。
(5)请写出同时满足下列条件的F的一种同分异构体的结构简式。
①能发生银镜反应;②水解产物能与FeCl3显色:③核磁共振氢谱显示有四组峰。
(6)请写出以乙醇为原料制备强吸水性树脂的合成路线流程图(可选择题干中相关试剂,无机试剂任选,合成路线流程图示例见本题题干)。
18.(12分)氯化苄(C6H5CH2Cl)是一种重要的有机化工原料。
工业上采用甲苯与干燥氯气在光照条件下反应合成氯化苄。
(l)写出甲苯与干燥氯气在光照条件下反应合成氯化苄的化学方程式。
(2)用下列方法分析氯化苄粗产品的纯度:步骤I:称取2.555 g样品于烧瓶中,加入100.00 mL 4mol/L氢氧化钠溶液共热,冷却至室温。
加入100.00 mL4mol/L硝酸,一段时间后,将烧瓶中的溶液全部转移至250.00 mL的容量瓶中,加水定容。
步骤II:从容量瓶中各取50.00 mL溶液于三只锥形瓶中,各加入25.00 mL0.2000mol/L硝酸银溶液。
步骤m:用硫酸铁铵作指示剂,用0.2000 mol/LNH4SCN溶液分别滴定剩余的硝酸银,所得滴定数据如下表。
①加入硝酸的目的是。
②在步骤III操作中,判断达到滴定终点的现象是。
③该样品中氯化苄的质量分数(写出计算过程)。
④上述测定结果通常高于氯化苄中氯元素的理论含量,原因是。
19.(15分)以铬铁矿为原料可制备K 2Cr2O7和金属铬。
实验流程如下:(1)写出铬铁矿焙烧转化为Na z CrO4的化学反应方程式:▲。
焙烧时不能使用陶瓷容器的原因是▲。
(2)加入稀硫酸后所得Na2Cr2O7溶液的pH 应小于3.0,可用测定溶液pH。
(3)操作①包括过滤和洗涤。
实验室洗涤沉淀的操作是▲。
(4) Na2S的作用是调节溶液的酸碱度和__(5) Fe3+在pH为3.7时可完全转化为Fe(OH)3。
在上述流程中所得Na z Cr z07溶液中含有少量Fe3+。
请结合上图有关物质的溶解度曲线,设计由Na2Cr2O7液制备K2Cr2O7固体的实验方案(实验中须选用的试剂:硫酸、NaOH溶液、KCl固体、蒸馏水):。
20.(14分)氮氧化物会形成光化学烟雾和酸雨,可采取下列方法对氰氧化物进行处理。
(1) SNCR脱硝技术的原理:(2) NSR (NO x储存还原)工作原理:NO x的储存和还原在不同时段交替进行,如图a 所示。
①NO x储存转化为Ba(N03)2过程中,参加反应的NO和02的物质的量之比为▲。
②H2还原Ba(NO3)2的过程分两步进行,图b表示该过程相关物质浓度随时间的变化关系。
第一步反应的化学方程式为▲。
(3) SCR消除氮氧化物的反应原理:其他条件相同,某密闭容器中分别投入NH3、NO、O2,在甲、乙两种催化剂作用下,NO转化率与温度的关系如图c所示。
在催化剂甲作用下,图中Y 点处(对应温度为210℃)NO的转化率一定不是该温度下的平衡转化率的原因是▲。
工业实际选择催化剂乙的原因是▲。
(4)①用石灰乳吸收氨的氧化物,原理为:为使吸收充分(选填“≥”或“≤”)l。
②目前可采用电解的方法除去废水中的NO2-,原理如图d所示。
写出阴极的电极反应式:▲。
21.(12分)【选做题】本题包括A、B两小题,请选定其中一小题,并在相应的答题区域内作答。
若多做,则按A小题评分。
A.【物质结构与性质】。
铜的化合物具有广泛的用途。
(1) Cu2+基态核外电子排布式为▲。
(2)往硫酸铜溶液中加入过量氨水,溶液最终变成深蓝色,继续加入乙醇,可析出N、O、S原子的第一电离能由大到小的顺序为▲,与SO42-互为等电子体的分子的化学式为__ ,每个乙醇分子中sp3杂化的原子个数为▲。
(3)铜的一种氧化物晶体结构如图所示,其中O原子的配位数为▲。
(4) Cu2O的熔点比Cu2S高的原因是▲。
B.【实验化学】亚硝酸钠(NaNO2)是工业盐的主要成分,在漂白、电镀等方面应用广泛。
实验室以木炭、浓硝酸、Na2O2为主要原料按照如图所示装置制各亚硝酸钠(加热装置及部分夹持装置已略去),反应原理为:2NO+Na2O2=2NaNO2。
回答下列问题:(1)A装置中反应的化学方程式为▲。
(2)B装置中铜的作用是▲。
(3)充分反应后,C中生成的固体除NaN02外,还可能有杂质生成,应在B、C之间加一个装置,该装置所盛放试剂的名称是▲。
(4)检查装置气密性并装入药品后,以下实验操作步骤正确的顺序为▲(填标号)。
a.打开弹簧夹,向装置中通入N2b.点燃酒精灯c.向三颈烧瓶中滴加浓硝酸d.熄灭酒精灯e.关闭分液漏斗旋塞,停止通入Nz (5)D装置用于尾气处理,写出D中反应的离子方程式:▲。
(6)利用改进后的装置,将7.8gNa2O2完全转化成NaNO2,理论上至少需要木炭g。
2017-2018学年度苏锡常镇四市高三教学情况调研(一)化学参考答案及评分标准2018.03选择题(40分)单项选择题:本题包括10小题,每小题2分,共计20分。