汇总2018年二模
2018年中考英语二模汇编(动词时态语态和非谓语动词)
2018届上海中考二模动词时态语态汇编【2018届奉贤区中考二模】37. It is 4:30 p.m. Ben and Leon_________ their work, so they are playing chess now.A) are finishing B) finished C) have finished D) will finish38. The manager asked Tom if he_______ for the extra work the next weekend.A) comes B) will come C) would come D) had come39. ---These plans are all nice. I haven’t decided which one to choose.---It’s OK. You __________plenty of time to decide.A) gave B) were given C) will give D) will be givenC C D【2018届松江区中考二模】39. The traffic in Shanghai will become better if everyone ________ the traffic rules.A) will obey B) is obeying C) obey D) obeys40. Tom ________ in the factory for three years before he joined the army.A) has worked B) worked C) had worked D) will work43. ---Excuse me, could you please tell me if the sports meeting ________ on time?---It’s hard to say. If it rains tomorrow, we’ll have to put it off.A) is held B) will be held C) has been held D) was heldD C B【2018届长宁区中考二模】40. There’s something wrong with our new product. We ______ a lot of complaints so far.A) receive B) received C) will receive D) have received41. I don’t think Julia saw me at the moment because she_______ with her friends on the Internet.A) is chatting B) was chatting C) has chatted D) would chatD B【2018届虹口区中考二模】37.He said that he _______ to teach kids in the orphanage(孤儿院) after he graduated from school.A.will volunteerB.would volunteerC.has volunteeredD.is volunteering38.My deskmate _______ up very late last night and now he has fallen asleep in class.A.staysB.has stayedC.stayedD.had stayed40.If an area _______ by flooding, the government will face very serious difficulties.A.affectsB. is affectedC.will be affectedD.was affected.B C B【2018届徐汇区中考二模】40. Recently a new community library _______ and will be open to the public soon.A. is builtB. was builtC. has been builtD. will be built42. Mr White _______ English in school for seven years since he first visited China.A. teachesB. taughtC. is teachingD. has taughtC D【2018届浦东新区中考二模】38. Chinese athlete Wu Dajing _____ the medal at the Winter Games in February, 2018.win B. won C. will win D. has won39. Black tea _____ in China during the Ming dynasty as a way to keep tea fresh.invented B. is invented C. is inventing D. was invented40. After she ______ a huge breakfast at the hotel, she set out on foot down Nanjing Road.had eaten B. was eating C . has eaten D. have eatenB D A【2018届宝山区中考二模】37. My brother _____ the Indian film Dangal when I made a phone call to him yesterday.A. watchesB. has watchedC. is watchingD. was watching39. Mrs. White and her daughter ______ in England for twelve years before they moved to Denmark.A. liveB. were livingC. have livedD. had livedD D【2018届闵行区中考二模】36. The writer _______ his new book in the hall of our university at the moment.A. introducesB. is introducingC. introducedD. would introduce37. So far, the little boy _______ to 21 countries with his parents and two sisters.A. was travellingB. had travelledC. has travelledD. is travelling38. Workers _______ the construction of Underground Line 23 by the year of 2025.A. completedB. will completeC. completeD. had completedB C B【2018届青浦区中考二模】36. Mark ________ very hard in the university and was made Chairman of the Students’ Union.A. studiedB. studiesC. will studyD. are studying37. The volunteers ________ a lot of waste bottles on the beach by the end of the tourism festival.A. will collectB. have collectedC. was collectingD. had collected38. The old couple ________ not to trust any strangers when they were cheated last time.A. are toldB. would be toldC. were toldD. will be toA D C【2018届黄浦区中考二模】38. It is still unknown how AI (人工智能) ______ the way of our life as well as the world.A) change B) changed C) will change D) was changing39. Before O’Shea hosted the Joy FM program in Beijing, he ______ in Hong Kong for ten years.A) works B) has worked C) had worked D) would work41. It is reported that the ticket prices for key tourist sites in our country ______ soon.A) will reduce B) were reducedC) have reduced D) will be reducedC C D【2018届崇明区中考二模】( ) 39. Professor Stephen Hawking (霍金)_________from a serious disease in his early twenties.A) suffered B) suffers C) will suffer D) is suffering( ) 40. They________ the big fire before I returned with some people to help.A) are putting out B) put out C) had put out D) would put outA C【2018届杨浦区中考二模】39. In most countries cigarettes ______ to anyone under 18.A) don’t sell B) are not sold C) didn’t sell D) were not sold41. Simon ______ the piano for ages when he gave his first concert.A) has played B) is playing C) had played D) will playB C【2018届普陀区中考二模】36. We wondered if Judy ________ to Australia next week for business.A. fliesB. had flownC. has flownD. would fly37. Many leaders ________ to attend the Closing Ceremony(闭幕式)of Winter Olympics in February, 2018.A. be invitedB. were invitedC. will be invitedD. have been invited40. Rose and Minnie ________ each other pretty well before they worked in the same bank.A. knowsB. knowC. have knownD. had known41.Kevin ________ in his room when the big fire broke out.A. sleepB. sleptC. was sleepingD. will sleepD B D C【2018届静安区中考二模】35. The writer told us that he _______ a great number of short stories in the last few years.A) wrote B) was written C) has written D) had written41. We’re so proud that the 24th Winter Olympic Games _______ in Beijing in 2022.A) will hold B) was held C) will be held D) has heldD C【2018届金山区中考二模】36. He____________ a walk with his wife in the garden from seven to eight last night.A) was taking B) is taking C) took D) would take37. The film Amazing China shows us great changes ___________ in China in the past five years.A) take place B) had taken place C) have taken place D) took place38. The famous lawyer ____________ by a news reporter from China Daily just now.A) has interviewed B) was interviewed C) is interviewing D) is interviewedA C B2018届上海中考二模非谓语汇编【2018届奉贤区中考二模】1. According to my brother, fishing is an excellent hobby to _________.A. pick upB. take upC. put upD. turn up2. ---What should I do, doctor?--- __________healthy, you should take more exercise.Keep B. Keeping C. To keep D. Being kept3. __________ the words of pop songs ________ a good way to learn English.A. Memorize; isB. Memorize; areC. Memorizing; isD. Memorizing, areB C C【2018届松江区中考二模】1. I will lend the book to you as soon as I finish ________ it.A. readB. to read i ngC. readingD. to read2. We invited Professor Li ________ a speech at the meeting yesterday.A. to makeB. makingC. madeD. makeC A【2018届长宁区中考二模】1. Nowadays a lot of young people are trying to do more things _______ the old.A. to serveB. serveC. servingD. served2. He offered to take me for a ride in his new car after he finished _______it.A. cleanB. cleansC. cleaningD. to cleanA C【2018届虹口区中考二模】Bob spent more than four hours _______ playing the piano every day when he was young. practise B. to practise C. practising D. practised2. Alice expected _______ some time to herself at weekends when she was a student.A. to haveB. havingC. to havingD. haveCA【2018届徐汇区中考二模】1. To complete the project in time, the staff of the company kept _______ day and night.A. workB. workingC. to workD. worked2. My brother was so careless that he forgot _______ his passport to the airport.A. takeB. takingC. to takeD. takenB C【2018届嘉定区中考二模】【2018届浦东新区中考二模】Food apps help the delivery companies _____ more products and services.explored B. exploring C. explores D. exploreThe best time_________ the strawberries is usually in late April every year.to pick B. picking C. pick D. picksD A【2018届嘉定区中考二模】1. Mr. White finished ____ invitation cards for the celebration party five minutes ago.A. writeB. wroteC. writingD. to write2. Tommy and Jack were warned ______ or scare the animals when they were in the zoo yesterday.A. not to feedB. not feedC. don’t feedD. to not feedC A【2018届闵行区中考二模】Alice would rather _______ in an air-conditioned room in such hot weather.A. stayB. to stayC. staysD. staying2. Tracey suggested _______ basketball in Sports Club after school.A. playsB. to playC. playD. playingA D【2018届青浦区中考二模】To save time, many airlines now allow passengers ________ their boarding passes online.A. to printB. printingC. printD. printed2. Since it’s your first visit to Britain, you’d better ________ something about the British culture.A. learnB. learningC. learnedD. to learnA A【2018届黄浦区中考二模】Tourists are required ______ their cars outside the National Park and take the cable car.A. parkB. parkingC. parkedD. to park2. It was in the police office that the thief admitted ______ the purse from the old lady.A. stealB. stealingC. stolenD. to stealD B【2018届崇明区中考二模】Nowadays, many parents make their children ______ various courses at weekends.A. to attendB. attendC. attendingD. attended2. The old couple used to enjoy______ out for a walk after supper.A. goingB. to goC. wentD. goB A【2018届杨浦区中考二模】More schools in the area have agreed ______ the National Walkout Plan.A. to supportB. supportingC. supportD. supported2. It was so frightening. I could feel you ______ with fear.A. shakingB. to shakeC. shakenD. to shakingA A【2018届普陀区中考二模】All the members of the team hope ________ a wonderful result of the project.A. hadB. haveC. to haveD. having2. The girl practiced ________ the piano for three hours every day to win the contest.A. playB. playsC. to playD. playingC D【2018届静安区中考二模】1. We are often told _______ dishonest by our class teacher at the class meeting.A. don’t beB. not beingC. not beD. not to be2. Microsoft will stop _______ service for Win 7 by the end of Jan.14, 2020.A. provideB. to provideC. providingD. to providingD C【2018届金山区中考二模】1. Our class teacher often advises us____________ full use of time during this important period.A. makeB. makesC. makingD. to make2. I still remember ____________ as a prince in a short play competition. How fantastic it was!A. to actB. actingC. actD. actedD B。
上海市2018年中考英语二模汇编(五选四篇)
2018年宝山（嘉定区）二模Ⅲ. Complete the following passage with the words or phrases in the box. Each can only be used once（将下列单词或词组填入空格。
每空格限填一词，每词只能填一次）A. In the endB. thankfulC. reduceD. uncomfortableE.HoweverFew of us have heard of Nils Bohlin, but whenever we take a car journey, his invention is important to us. Found in almost every modern car, the three-point seat belt can ___1___ our chances of death or injury by at least 50%. While feeling ___2___ to this engineer from Volvo, you may also wonder how he came up with such a great idea.Having worked as a plane designer before, Nils knew clearly that the pilots were willing to put on anything to keep them safe in an accident, but to his surprise, most people in the cars didn’t want to be ___3___ for even a minute.To improve the safety for people in the car, he decided to find a perfect system which should be simple, effective and convenient. ___4___, he invented the three-point seat belt, which has been considered as one of the greatest inventions in history.A. produceB. importanceC. slow downD. protectE. suddenlySeat belts prevent people in the cars from serious injury in the following ways:To keep people inside. People who are thrown out from a car are four times more likely to be killed than those who stay inside.To ___5___ the strongest parts of the body. Seat belts are designed to fix your body at its strongest parts. For an older child and adult, these parts are the hips （臀部）and shoulders.To spread out the force in an accident. Seat belts spread the force of the accidentover a wide area of the body. Seat belts also help keep your upper body away from the hard parts of the car if you stop ___6___, or are hit by another car.To help the body to avoid a fast and deadly hit. With the help of the seat belts, your body can have more time to ___7___, the speed in an accident.Therefore, it’s of great ___8___ to help both the drivers and the passengers. It takes only a few seconds to buckle up（系好）once you get in the car, but this simple action could save your life. Why wouldn’t you?Keys:2018年宝山（嘉定区）二模：1-4 CBDA 5-8 DECB2018年闵行区二模III. Complete the following passages with the words or phrases in the box. Each can only be used onceA. managed toB. showed offC. productsD. deathE.researchWhat can you do with nuts? A scientist named GeorgeWashington Carver answered that question, over and over again.We should say thanks to him for more than 300 __1__.When Carver was born in 1864, he was a slave(奴隶) on afarm in Missouri. Later, he got freedom. As a teenager, he worked on a farm and __2__ finish high school. At the age of 30, he became the first black student at the college in lowa. Several years later, he took a job at a college in Alabama, where he worked until his __3__ in 1943.Carver studied agriculture, the science of farming. His __4__ made huge improvements in farming in the southern United States.A. remainedB. embarrassedC. similarD. materialE.gainedCarver studied peanuts. He knew that the south couldn’t grow just cotton. Planting cotton year after year wore out the soil and made it useless. Carver learned that if farmers planted cotton one year and peanuts the next, the soil __5__ healthy.To encourage this practice, Carver thought of new uses for the peanut. Would you like to try peanut and raisin ice cream? How about usingpeanuts as a kind of __6__ to make shampoo? Perhaps you wouldprefer to make paint from peanuts, or maybe you would like tobake with peanut flour. Glue? Paper? Rubber? The list goes onand on. He also thought of __7__ uses for pecans(山核桃) and othernuts.Carver __8__ little from most of his inventions. He didn’t feel that it was right to sell his ideas. He gave them freely to help farmers and fellow scientists. Carver’s life is one that we could all use as an example.Keys:2018年闵行区二模：1-8 CADEADCE2018年浦东新区二模III. Complete the following passage with the words or phrases in the box. Each can be used only once (将下列单词或词组填入空格。
18广东高考语文二模含答案解析
2018年普通高等学校招生全国统一考试广东省语文模拟试卷（二）2018年4月22日注意事项：1．答题前，考生务必用0.5毫米黑色字迹签字笔将自己所在的县（市、区）、学校以及自己的姓名、考生号、考场号和座位号填写在答题卡和试卷的指定位置，并用2B铅笔在答题卡的“考生号”处填涂考生号。
2．回答选择题时，选出每小题答案后，用2B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。
回答非选择题时，用0.5毫米黑色字迹签字笔将答案写在答题卡上。
写在本试卷上无效。
3．考试结束后，将本试卷和答题卡一并交回。
一、现代文阅读（35分）（一）论述类文本阅读（本题共3小题，9分）阅读下面的文字，完成1～3题。
草原文化精神从根本上说是一种动态的、积极的、以个体奋斗为主要内容的进取性文化。
北方草原具有独特性，它既有深远悠长的民族牧歌情调式的生活方式，又有严酷杀伐的沧桑、厚重的历史，从而导致了草原民族对于人与自然关系方面的特殊认识。
一方面，人与自然的关系极为直接、密切，人对自然的依赖性突出，因而对自然的亲近之感、迫近之念、忧虑之情更为突出、深挚；它不似江南山水对人的细腻轻抚，更不像士子优游于小桥流水，流溢着别致而精微的艺术感触，而是将民族生存与自然环境直接联系起来，把对草原的关切与民族的整体性发展联结起来，发出了“草原不在、民族何存”的呐喊，汉代流传的《匈奴歌》就是其中代表。
另一方面，人与自然架构起初步的生态美学桥梁。
蒙古民族第一部史传文学《蒙古秘史》当中就显现着极为浓郁的生态观念。
由于生存环境的严酷、险恶、千变万化，草原民族“逐水草而居”的动态生存观念异常鲜明草原民族生存的“动态”和“变化”的特点使人的适应能力和冲破自然环境束缚的能力分外突出草原民族强调人在强大的自然环境和社会面前的力量、智慧、意志力，从而形成一种对英雄的崇拜的观念。
《史记·匈奴列传》中的冒顿单于和《蒙古秘史》中的札木合就是鲜活的例证，只不过后者还显现着强烈的崇信重义之美。
上海市2018年中考英语二模汇编C篇【word版】.doc
2018年二模首字母1.奉贤区：【难度】☆☆C. Fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺。
每空格限填一词，首字母已给）（14分）Zhang Ming, a college graduate from Shandong, created a 9-page “WeChat guide”. With drawings and simple words, the step-by-step guide e 81 how to send messages, take pictures and make video calls. Zhang made the guide for his parents. “My parents are getting old. They need an easy way to learn how to use technology,” he said.Zhang’s experience is c82 nowadays. Worldwide, 40 percent of parents learn about new technologies, including computers, mobile Internet and social media, fromtheir children, according to a study from the International Communication Association in 2017.Parents u 83 to teach their kids about almost everything. Now for the first time, the teachers become the students, and the students turn into the teachers.The c 84 of the roles comes from the rapid development of society and technology, says Zhou Xiaohong, a sociology professor from Nanjing University. Zhou said the Internet and otherforms of media give children ways to get information b 85 from asking older generations. Therefore, in the age of information, it’s possible that children know more than their parents do.According to the China Internet Network Information Center, 56.7 percent of Internet users and67.2 percent of social media users in China are under the age of 30. The younger generationu 86 acts as a link between their family and the new environment. But when they teach theirparents new technologies, parents can connect to the new world by themselves, noted Zhou.In Zhang Ming’s eyes, teaching his parents about WeChat brings him c87 to his parents. “People can communicate more by using new technology. Why should we keep our parents out?” said Zhang.Keys:81. explained mon 83. used 84.change 85. besides 86. usually 87. closer2.黄浦区：【难度】☆☆☆C. Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）:（14分）Grades are important, but they are not the only measure.I have come to understand that exam grades are not the only purpose of schools, and grades a81 are not enough.Studies show that some of the high-flying students have troubled lives, finding it difficult to getgood jobs or become great parents or partners. A 82 graduation, students come to realize whatthey have learned at school has not really prepared them for the next step.Increasingly, teachers are getting to know the idea of “learning from our failures.” If you’v failed at anything, you’ve certainly never t83 anything new. Exam grades are important and we84encourage all students to aim high and to do well. But they don’t msuccess.I once asked my students to consider the chef Gordon Ramsay, and how he became sosuccessful. They were surprised to find that he didn’t have a good performance at school and hedidn’t s85 become a great chef. In an interview, he explained that he worked long hours for verylittle money, learning everything he could. He took chances even if they seemed i 86 . He mademistakes but he cheered himself up and moved forward. His success didn’t come from grades, itcame from his character: courage, effort and confidence.We should develop social skills through the whole school as an important p 87 of learning.This is why there is a focus on performance, sport and other activities. These life skills will workhand-in-hand with knowledge to enable students to do well in their future life.Keys:81. alone 82.After 83.tried 84.mean 85.suddenly 86.impossible 87.part3.金山区：【难度】☆☆☆C. Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺。
2018年大连二模试题(卷)
大连市2018年初中毕业升学模拟考试（二）语文注意事项：1．请在答题卡上作答，在试卷上作答无效。
2．本试卷共四大题，23小题，满分150分。
考试时间150分钟。
一、积累与运用（27分）1．请用正楷字将下面的汉字抄写在田字格里，要求书写规范、端正、整洁。
（2分）强国梦从读书始2．下列加点字的注音和字形都正确的一组是是（）（2分）A．捶．打（chuí）喧嚷．（rǎng）一代天骄．（jiāo）喜出忘．外（wàng）B．烦闷．（mèn）藻．井（zǎo）刚毅不屈．（qū）一拍即．合（jí）C．菜畦．（qí）追溯．（shù）正襟危．坐（wēi）无动于衷．（zhōng）D．虐．待（nuè）蓬蒿．（hāo）遮天蔽．日（bì）囊萤．映雪（yíng）3．默写填空。
（12分）（1）其西南诸峰，，，琅琊也。
（欧阳修《醉翁亭记》）（2），，只恐双溪舴艋舟，载不动许多愁。
（李清照《武陵春》）（3）我是你簇新的理想，刚从神话的蛛网里挣脱；；；我是新刷出的雪白的起跑线……（舒婷《祖国啊，我亲爱的祖国》）（4）独怜幽草涧边生，上有黄鹂深树鸣。
，。
（韦应物《滁州西涧》）（5）王湾的《次北固山下》中，描写春水上涨、大江直流、波平浪静的壮阔景色的句子是：，。
（6）今天，中华民族进入了崭新的时代，青年一代应以“，”的雄心与气概，昂首奋进，在实现中国梦的实践中创造精彩人生。
（用杜甫《望岳》中的诗句回答）4.按要求完成文后各题。
（5分）①《诗书中华》是东方娱乐集团自主研发的文化类节目。
②该档节目在形式上另辟蹊径，以家庭组合代替个人应战，让人。
③《诗书中华》要么突破了以往文化类节的普遍样态，要么以展现中国人的家学渊源为主线，弘扬了传统美好的家风、家训、家史。
④家学是丰厚的土壤，《诗书中华》找到这个突破口，说明传统文化类节目仍然有更广阔的空间。
（1）依据语境，第②句空格处应填入的一个成语是：。
2018学年度高三二模理综试卷及答案
2018学年度高三二模理综试卷及答案可能用到的相对原子质量H～1 O～16 C～12 N～14 S～32 F～19 Cl～35.5 Br～80 I～127 Si～28 Na～23 K～39 Ca～40 Mg～24 Al～27 Fe～56 Cu～64 Ag～108 Zn～65 Ba～137 Mn～55 Pb～207第Ⅰ卷(选择题共126分)一、选择题：本大题共13小题，每小题6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．用15N标记含有100个碱基对的DNA分子（其中有腺嘌呤60个），该DNA分子在含14N 的培养基中连续复制4次。
下列有关判断错误的是A．含有15N的DNA分子有两个B．含有14N的DNA分子占总数的7／8 C．第四次复制消耗胞嘧啶脱氧核苷酸320个D．复制结果共产生16个DNA分子2．现用洋葱根尖进行如下处理并完成实验：①用蒸馏水培养根尖，观察有丝分裂；②将正常培养的装置移到冰箱中再培养一段时间，观察并统计有丝分裂中期的染色体数；③在蒸馏水中加入一定量的甲苯培养根尖，观察有丝分裂中期染色体的形态和数目。
下列相关叙述合理的是A．实验①应先在低倍镜下找到长方形细胞，再换用高倍镜观察染色体变化特点B．实验②是为了验证“低温可能是形成多倍体的诱因”，其原理是低温抑制着丝点分裂C．实验③的目的可能是研究甲苯对染色体结构和数目的影响，但还需设计对照组D．实验③依据的原理之一是“致癌物质会使细胞发生基因突变，原癌基因被激活”3．在一个新鲜萝卜中挖一凹槽，在凹槽中放入浓盐水。
一段时间后，萝卜变软，凹槽中水分增多。
下列图示的实验与此实验原理差异最大的是（）4. 溶菌酶是存在于眼泪和白细胞中的酶，有杀菌功能，整个分子大致呈球形，故称为球蛋白(如图)。
下列关于溶菌酶的说法，不正确的有( )①溶菌酶从细胞进入泪液不穿过生物膜②溶菌酶是由两条多肽链共同组成的③双缩脲试剂5%NaOH溶液与1%CuSO4溶液等体积混合后与溶菌酶反应呈紫色④溶菌酶的空间结构与其功能密切关系⑤溶菌酶的杀菌作用属于特异性免疫A.一项B.两项C.三项D.四项5.如图表示处于平衡状态的某生物种群因某些外界环境变化导致种群中生物个体数量改变时的四种情形，下列有关叙述中，不正确．．．的是A．若图①所示为草原生态系统中某人工种群，则a点后的变化可能原因是过度放牧B．若图②所示为培养液中的酵母菌种群，则b点后的变化可能原因是天敌的减少C．图③中c点后发生的变化表明生态系统的自我调节能力有一定限度D．图④曲线可用于指导海洋捕捞，维持资源种群数量在K/2左右6．下图为人体内某些生理过程示意图解。
2018理综二模试题答案
2018二模考试理科综合参考答案一、选择题题号1234567891011答案B A D C B C D C A D B题号1213141516171819202122答案C D A B D B C D ABC CD AD二、填空简答题23.光的直线传播24.（1）钓鱼竿（2）50N （3）变大25.1100 3000 326.（1）节能、低污染、经济（2）机械（3）变小27.（1）不可再生（2）×108 （3）开发新能源（减少化石燃料的使用或使用脱硫煤）28.（1）b （2）浓硫酸（3）判断氧气的输出速率29.（1）灼烧闻气味（2）碱性物质（3）4Al+3O2==2Al2O3 （4）780 （5）2CO230.（1）100ml （2）搅拌，加速溶解（3）⑤仰视读数（4）④①⑤③②（5）氯化钠固体不纯（或量取水时仰视读数）31.（1）H2SO4 （2）CuSO4+2NaOH==Cu(OH)2↓+Na2SO4 （3）黑色固体逐渐变为红色（4）置换反应32.（1）将木块侧放在木板上，用弹簧测力计水平匀速拉动木块（2）若弹簧测力计的示数与甲实验中的测力计示数相同（其它方案合理即可）。
（3）摩擦力与拉力二力平衡（4）人行走（其它方案合理即可）33.（1）物体排开液体的体积（2）（3）沉底（4）×103kg/m3（5）2×10334.（1）接线柱接法效果相同即可（2）右（3）将电压表改为大量程。
（4）；实际电功率（或实际功率）【拓展】 5 1:135.猜想：氢氧化钠、氯化钠、氯化钙（或NaOH、NaCl、CaCl2）讨论：C，碳酸钠和氯化钙反应不能共存实验设计：实验步骤：滴加碳酸钠溶液实验现象：产生白色沉淀反思交流：Na2CO3+CaCl2==CaCO3↓+2NaCl 反应物是否有剩余36.（1）赤铁矿石中氧化铁的质量分数：40g—8g=32g ……………………（1分）（2）设盐酸中溶质的质量为X6HCl+Fe2O3=2FeCl3+3H2O ………………………………………………( 1分)219 160X 32g219 160 …………………………………………………( 1分)X 32gX= …………………………………………………( 1分)＝盐酸的质量分数为：219g ×100%=20% …………………………………( 1分)答：盐酸的质量分数为20％。
2018高三二模A篇
2018高三二模A篇汇编一、宝山区（A）I believe in getting lost. Lost in the text of the novel that is particular to your thoughts and feelings that you consider special. The song that reminds you of your childhood summers, where you close your eyes and lose yourself reliving a memory; feeling the warm wind brushing against your arm, the smell of the dusty sand that you stir up as you ride your bicycle, murmuring the tune of that song. Like the unprepared Sunday Drive, with no destination. You’re free to wander, take paths that you’ve never noticed, discover places you haven’t been. Then falling off on the path to lead you back home, leaving you to test directions and alertly absorb your surroundings in order to find your way back; that kind of lost.I get lost daily, whether it’s in thought, or the unplanned drive I just decided to go on. Getting lost is an adventurous learning experience that trains you how to be more aware of your surroundings. A few of my most favorite memories involve physically getting lost. That one late night trip back to Ludington from Grand Rapids I took with a few friends. We finally realized we were going the wrong way when we hit South Haven, almost three hours out of our way. There was also the time where I got lost in the De V os Place in Grand Rapids after the President’s Ball and then the parking garage for a solid two hours. I felt like my life was that one scene of an American television situation comedy, minus the air conditioner. At the time, these are nervous experiences that get your anxiety pumping. You’re fearful that you won’t be safe, but it always works itself out in the end. Physically losing yourself prepares you for how you manage when you emotionally or mentally lose yourself.You don’t always have to be lost in a literal sense to“get lost”and some of the time, losing yourself may not be a positive experience. There are times where I lose sight of who I am. While lost, I test our metaphorical paths and sometimes they turn out to be the right direction and other times they were a wrong turn. I make note of these wrong turns, so I can avoid them further on up the road of finding my way back to who I am.In Walden, Henry David Thoreau wrote“Not till we are lost, in other words not till we have lost the world, do we begin to find ourselves, and realize where we are and the infinite extent of our relations.”Getting lost fuels my curiosity and teaches me lessons on finding my way back to the right track. I believe in getting lost through day dreams, a misplacement, adventures, and difficult times where you make discoveries about yourself and the atmosphere around you. In order to truly find yourself, I believe that you should put down the map and get wonderfully lost.56. In the first paragraph, the author mainly expresses that ______.A. lost in a novel is a special feelingB. songs remind us of past experiencesC. wandering is a wonderful discoveryD. getting lost brings us benefits57. The author mentions the experiences of physically getting lost（in paragraph 2）in order to say_______.A. physically getting lost is most difficult to deal withB. we can enjoy trips while physically getting lostC. people are easy to get physically lost in our daily lifeD. we realize our surroundings while physically getting lost58. Words from Henry David Thoreau（in the last paragraph）imply that getting lost ______.A. enables us to look within and to see outwardB. pulls people back into the previous momentC. enables us to remind ourselves of adventuresD. helps us enjoy ourselves wherever we are59. Which of the following might be the best title of the passage?A. I Once Was LostB. Wonderfully LostC. Physically Getting LostD. Mentally Getting Lost56-59 DDAB二、崇明区（A）In the world of higher education in the United States, competition seems more common than schools working together. Every college and university competes for students, as well as the best teachers and money for research programs.But one thing almost every school has in commonis the difficulty they face in serving low-income students.The National Center for Education Statistics reports that low-income college students are less likely to complete their study programs than other students.It was only natural that the leaders of Michigan State University and ten other universities discussed this issue when they met in 2014. The 11 schools are spread across the United States and serve different populations and needs. But their leaders all saw improving graduation rates for all students as the biggest problem facing American higher education.So the group created an organization called the University Innovation Alliance or UIA for sharing information related to this problem. Its main goal is to get 68,000 more students at the member schools to graduate by 2025, with at least half of those students being low-income. The 11 schools now say their number of graduates has increased by over 7,200 in just three years. This includes an almost 25 percent increase in the number of low-income graduates.How were they able to make this happen? It began with each university looking at its own situation and finding out what it had been doing right and what it had been doing wrong.For example, before joining the UIA, academic advising at Michigan State mostly involved reacting to problems students faced after the problems had already arisen. Then school officials heard about a computer program that fellow UIA member Georgia State University was using.This computer program follows decisions students make about their classes and the progress they are making in their studies. It then sends academic advisors messages whenever a student shows signs that they are making mistakes or facing difficulties. That way the advisors can try to help students before the problems become too serious.Michigan State began using the computer program and it has meant a world of difference.Michigan State has not only received useful information from its partners. It has also shared helpful information of its own.Bridget Burns, the executive director for the UIA, says efforts like this have never been as successful. “There are rankings that measure all kinds of things,” Burns said. “But how well you do for low-income students has not historically beenhighlighted.”56. What led to the setting up of the UIA?A. The low graduation rates.B. The great need of low-income students.C. The inefficiency of learning.D. The severe competition between schools.57. The UIA functions in such a way as the member universities _____.A. find out their own graduation ratesB. share and follow each other’s good practiceC. make joint efforts to aid students financiallyD. popularize computer programs among students58. By “it has meant a world of difference” in paragraph 6, the author means Michigan State _____.A. has found the computer program quite different from theirsB. has discovered the computer program is very difficult to useC. has helped students successfully with the computer programD. has involved more academic advisors in the computer program59. Which of the following might be the best title for the passage?A. Universities Highlighting Their Efforts for Low-IncomesB. Universities Competing for Better Students and TeachersC. Universities Working Together to Help Poor StudentsD. Universities Creating the UIA to Share Information56. A 57. B 58. C 59. C三、奉贤区AOne Friday morning, before Michael was leaving for work he told his wife that lie had finally determined to ask his boss for a salary raise. All day Michael felt nervous and anxious as he thought about the upcoming showdown. What if Mr. Duncan refused to grant his request? Michaelhad worked so hard in the last 18 months and brought some great benefits to Braer and Hopkins Advertising Agency. Of course, he deserved a wage increase.The thought of walking into Mr Duncan's office left Michael weak in the knees. Late in the afternoon he was finally courageous enough to approach his superior. To his delight and surprise,the ever-frugal(一惯节省的)Rowland Duncan agreed to give Michael a raise!Michael arrived home that evening-despite breaking ail city and state limits-to a beautiful table set with their best china, and candles lit. His wife, Cassie, had prepared a delicate meal including his favourite dishes. Immediately he thought someone from the office had tipped her off!Next to his plate Michael found a beautiful lettered note. It was from Isis wife. It read:"Congratulations, my love! I knew you'd get the raise! I prepared this dinner to show just how much I love you. I am so proud of your accomplishments" He read it and stopped to think about how sensitive and caring Cassie was.After dinner,Michael was on his way to the kitchen to get dessert when .he observed that a second card had slipped out of Cassie's pocket onto the floor .He bent forward to pick, it up. It read:"Don't worry about not getting the raise! You do deserve one! You are a wonderful provider，and I prepared this dinner to show you just how much I love you even though y ou did not get the increase.”Suddenly tears swelled in Michael's eyes. Total acceptance! Cassie's support for him was not conditional upon his success at work.The fear of rejection is often softened and we can undergo almost any setback or rejection when we know someone Loves us regardless of our success or failure.56. What was Michael's plan that Friday?A. To find a job with the Braer and Hopkins Advertising Agency.B. To ask for a wage increase from his boss.C. To celebrate his success.D. To ask his boss to come for dinner.57. On his way back home, Michael_.A. felt weak in the kneesB. was punished by the traffic policemanG. was too anxious to share the news with his wifeD. couldn't wait to enjoy a meal58. Which of the following statements about the story is FALSE?A. Michael was afraid that his request would lead to。
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sjs23．（3分）为探究浓度对过氧化氢分解反应速率的影响，同学们设计了如下三个实验：二氧化锰放在气球中，实验时将二氧化锰同时倒入试管中，在反应结束前的某一时间同时观察，现象如图所示。
①②③（1）过氧化氢与二氧化锰混合时发生反应的化学方程式为______。
（2）②中所取过氧化氢溶液体积和二氧化锰质量分别为______。
（3）该实验得出的结论是______。
〖科学探究〗24.（6分）实验小组的同学将CO2通入氢氧化钠溶液时，没有观察到明显现象。
为了能通过实验现象证明二氧化碳与氢氧化钠确实发生了反应，进行了以下探究。
【提出问题】如何能观察到反应的变化过程？【查阅资料】NaOH、Na2CO3在水中的溶解度温度/℃0 10 20 30NaOH 42 51 109 119Na2CO37.1 12.2 21.8 39.7NaOH、Na2CO3在乙醇中的溶解度【进行实验】注：乙醇在实验中只作为溶剂，不参与化学反应。
温度/℃NaOH Na2CO318.5~25 17.3 不溶实验实验装置实验操作实验现象1打开止水夹，通入CO2，气球明显鼓起后关闭止水夹一段时间后，气球明显变瘪2室温下，向10mL澄清饱和的NaOH溶液中通入适量CO2试管内壁出现白色固体10 ml 5%过氧化氢溶液10%过氧化氢溶液10 ml 30%过氧化氢溶液1 g二氧化锰_____ g二氧化锰 1 g二氧化锰NaOH固体CO2NaOH溶液【解释与结论】（1）二氧化碳与氢氧化钠反应的化学方程式为 。
（2）实验1中，气球明显变瘪的原因是 。
（3）实验2中，试管内壁上出现白色固体的原因是 。
（4）实验3甲中出现白色沉淀的原因是 。
（5）实验3中操作②的目的是 。
【反思与评价】（6）实验1是从________（填“反应物消耗”或“新物质生成”）角度证明化学反应发生。
23．（3分） （1）2H 2O 22H 2O + O 2↑ （2）10mL 1g（3）在相同条件下，过氧化氢溶液浓度越大，反应速率越快24．（6分）（1）CO 2 + 2NaOH = Na 2CO 3 + H 2O （2）CO 2与NaOH 反应，使压强变小 （3）生成碳酸钠的质量大于氢氧化钠质量，碳酸钠的溶解度小于氢氧化钠．．．．．．．．．．．．． （4）二氧化碳与氢氧化钠反应生成碳酸钠，碳酸钠不溶于乙醇 （5）证明二氧化碳与氢氧化钠反应生成了碳酸钠 （6）反应物消耗 〖生产实际分析〗18．（4分）KMnO 4是锰的重要化合物，工业上常用软锰矿（主要成分为MnO 2）制KMnO 4。
工艺流程如下（设备1～4中都含有水）： 资料：K 2CO 3易溶于水（1）设备1涉及的下列物质中，属于氧化物的是_____（填序号，下同）。
A ．KOH B ．MnO 2 C ．O 2 （2）设备2涉及的物质中，锰元素化合价为+6价的是_____。
（3）在“进一步处理”过程中，可将K 2CO 3转化为KOH ，应加入的物质是_____。
A ．CaCO 3 B ．KCl C ．Ca(OH)23甲 乙① 室温下，向10mL 饱和的NaOH 乙醇溶液中缓慢通入适量CO 2 甲中出现白色沉淀，乙中无明显现象② 滴入稀盐酸甲中有气泡生成，乙中澄清石灰水变浑浊（4）上述流程中可以循环使用的物质有H 2O 、_____。
21．（3分）实验室配制100 g 溶质质量分数为6%的氯化钠溶液。
实验操作如下：（1）正确的实验操作顺序是_____（填序号）。
（2）操作⑤中量筒的量程是_____ （填“10 mL ”、“50 mL ”或“100 mL ”）。
（3）若操作①中有部分固体洒落桌面，所得溶液的溶质质量分数会_____ （填“偏大”、“不变”或“偏小”）。
22．（3实验过程：①通入N 2，将W a 、b 处白磷均不燃烧；②通入空气，a b 处白磷燃烧。
资料：白磷的着火点为40 ℃，P 2O 5能与H 2O 反应 （1）白磷燃烧的化学方程式是_____。
（2）实验过程中，能说明可燃物燃烧需要氧气的现象是_____。
（3）关于该实验的说法中，正确的是_____（填序号）。
A ．湿棉花可以吸收白烟B ．烧杯中热水的作用是提供热量C ．②中，a 处白磷不燃烧的原因是温度没有达到着火点18．（4分）（1）B （2）K 2MnO 4 （3）C （4）KOH 、MnO 2 21．（3分）（1）④②①⑤③ （2）100 mL （3） 偏小 22．（3分）（1）4P + 5O 2 === 2P 2O 5（2）①中b 处白磷不燃烧，②中b 处白磷燃烧 （3）ABC18.（3分）某垃圾处理厂对生活垃圾进行处理与综合利用的部分流程如下， 请回答下列问题。
点燃 2⑴垃圾焚烧产生的烟气中含有HCl、SO2等有害气体。
石灰浆吸收HCl气体的化学方程式是。
⑵溶解步骤中，与稀硫酸发生反应的物质是，在此过程中还能发生Fe + Fe2(SO4)3 = 3FeSO4其反应类型是。
22.（3分）可以利用手持技术较准确的测定空气中氧气的含量，图2是用图1装置测得的红磷在集气瓶中燃烧过程中的“压强－时间”关系图（该装置气密性良好，P0是集气瓶内初始气压，P是反应结束时恢复到室温时集气瓶内的气压）图1图2（1）红磷燃烧的化学方程式为。
（2）集气瓶中的压强先增大后减小，其原因是。
（3）用此装置测得的空气中氧气含量是。
（列计算式）【科学探究】23.（6分）某些铜制品在空气中久置，表面生成绿色的铜锈（又称铜绿）。
某化学实验小组设计并进行实验，探究铜生锈的条件和铜锈的成分。
【提出猜想】根据空气的成分推测，铜生锈可能与CO2、H2O和O2有关。
【进行实验】实验小组同学取直径、长度均相同的铜丝，并打磨光亮。
设计了如下图所示的5个实验并持续观察。
编号①②③④⑤实验现象无明显现象无明显现象铜丝表面有绿色物质无明显现象无明显现象（1）猜想与假设时,同学们认为铜生锈与N2无关,其理由是。
（2）得出“铜生锈一定与O2有关”的结论，依据的两个实验是____（填编号）。
（3）为验证猜想，图中实验⑤中应选取的物质是。
（4）由上述实验可推知，铜生锈的条件是____。
（5）同学们用右图装置检验铜制品表面的绿色物质中含有碳酸盐, 则A中的物质是 ,B中的实验现象是。
？18.（3分）（1）Ca(OH)2+2HCl= CaCl2+2H2O（2）铁和氧化铁化合反应22.（3分）（1）4P+5O2=2P2O5（2）因红磷燃烧放热而压强增大，又因恢复到室温且氧气被消耗而压强减小。
（3）P0-P∕P0*100%【科学探究】23.（6分）（1）氮气的化学性质稳定（2）②和③（3）CO2和O2（4）CO2、H2O和O2（5）铜锈和稀盐酸澄清石灰变浑浊24．（4分）用下图所示装置，在常温下分别进行探究可燃物燃烧条件和氢氧化钠性质的实验。
已知：白磷的着火点为40℃内容装置【实验1】探究可燃物燃烧条件【实验2】探究氢氧化钠性质I. A中盛有H2O2溶液，B中盛有MnO2，C中盛有80℃的热水和一小块白磷I.A中盛有滴有酚酞的NaOH溶液，B中充满CO2，C中盛有稀硫酸II.打开分液漏斗活塞，将A中溶液滴加到B中，关闭分液漏斗活塞并打开KII.打开分液漏斗活塞，将A中溶液滴加到B中，关闭分液漏斗活塞。
充分反应后，打开K（1）H2O2溶液与MnO2接触时，发生反应的化学方程式为。
（2）实验1中，打开K后观察到C中白磷燃烧。
该实验证明可燃物燃烧的条件之一是。
（3）实验2中，对于所观察到的以下三个实验现象：C中部分液体沿导管流入B中，B中有气泡生成，B中溶液由红色变为无色。
解释产生上述现象的主要原因（用化学方程式表示）。
〖科学探究〗点燃25．（6分）同学们在“可爱的化学能源”实验中，对影响自制电池效果的因素进行了实验探究。
【提出问题】影响自制电池效果的因素有哪些？【查阅资料】电极材料、电极间距离、水果种类对自制水果电池的效果可能有影响。
【进行实验】1．选择水果和金属材料：水果选用西红柿、柠檬，金属材料选用铜片、锌片或铁片。
电流计2．将金属材料插入水果中，并测量距离，用导线连接金属材料和电流计，测量产生的电流。
（实验装置如右图所示）部分实验记录如下表所示。
序号电极电极距离水果种类电流计示数(uA)①Cu-Zn 2.0cm 西红柿72.5②Cu-Fe 2.0cm 西红柿69③Cu-Cu 2.0cm西红柿0.0④Cu-Zn 2.0cm 柠檬37.3⑤Cu-Zn 1.0cm 柠檬95.7【解释与结论】（1）实验①②③的目的是。
（2）欲得出“水果种类对电池效果有影响”的结论，需要对比（填序号）。
（3）对比实验④和⑤，得出的结论是。
【反思与评价】（4）对比实验①②③，可知构成水果电池的电极必须具备条件为。
（5）水果电池是利用水果中的化学物质和金属片发生化学反应而产生电能的一种装置。
将实验①中的西红柿换成稀硫酸，进行实验，电流计示数不为零，发生反应的化学方程式为。
由此可知，化学反应中除有新物质生成，还伴随有变化。
24．（4分）MnO2（1）2H2O2===== 2H2O + O2↑（2）与氧气接触（3）CO2 + 2NaOH=== Na2CO3+ H2ONa2CO3+ H2SO4=== Na2SO4 + H2O + CO2↑（其他答案合理给分）25．（6分）（1）探究电极材料对电池效果的影响（2）①④（3）其他条件相同时，电极间距离越小，电流越大，电池效果越好（4）两极金属材料活动性不同（5）Zn + H2SO4 === ZnSO4 + H2↑能量。