浙江省名校新高考研究联盟(Z20联盟)2020届高三上学期第一次联考英语试题 PDF版含答案
Z20联盟（浙江省名校新高考研究联盟）2020届第一次联考英语参考答案第一部分：听力（满分30分，其中第一节7.5分，第二节22.5分）第一节1-5 BCABC第二节6-10 ACABC 11-15 ABACC 16-20 CBAAB第二部分：阅读理解（满分35分, 其中第一节25分,第二节10分）第一节21-25 CADBC 26-30 DCBBD第二节31-35 CADBE第三部分：语言运用（满分45分，其中第一节30分，第二节15分）第一节36-40 CBCBA 41-45 DADCD 46-50 CDAAB 51-55CBBAD第二节56. invention 57. addicted 58. using 59. it 60. but61. as 62. who 63. drinks 64. original 65. has been kept第四部分：写作（共两节，满分40分）第一节：应用文写作（满分15分）一、评分原则1. 本题总分为15分，按5个档次给分。
2. 评分时，先根据文章的内容和语言初步确定其所属档次，然后以该档次的要求来衡量、确定或调整档次，最后给分。
3. 词数少于60和多于100的，从总分中减去2分。
4. 评分时，应注意的主要内容为：内容要点、应用词汇和语法结构的丰富性和准确性及上下文的连贯性。
5. 拼写与标点符号是语言准确性的一个方面，评分时，应视其对交际的影响程度予以考虑。
英美拼写及词汇用法均可接受。
6. 如书写较差，以至影响交际，将分数降低一个档次。
二、各档次的给分范围和要求浙江省名校新高考研究联盟（Z20联盟）2020届第一次联考英语参考答案第 1 页共 6 页三、试题具体要求（一）内容要点：1. 对演讲主题的理解；2. 提出建议和号召。
（二）应用词汇和语法结构的情况：1. 使用与主题相关的词汇；2. 能够使用恰当的语法结构。
（三）上下文的连贯性：按照内容要点展开写作，使用恰当的连接词或表达法使文章内容连贯。
四、One possible version:Hello, everyone! I’m glad to have this chance to share some ideas about garbage classification with you.To my understanding, th e earth is home to every individual, and it’s our duty to protect the environment voluntarily. By sorting the waste, we can not only reduce pollution but also conserve energy, which will pave the way for recycling of valuable recourses.For the sake of our environment and life, we are expected to learn to sort the rubbish and make it a habit. Every individual can make a difference and let’s bring a brighter future for the planet!Thank you!浙江省名校新高考研究联盟（Z20联盟）2020届第一次联考英语参考答案第 2 页共 6 页第二节: 概要写作（满分25分）一、评分原则：1. 本题总分为25分，按5个档次给分。
2. 评分时，先根据所写概要的内容和语言初步确定其所属档次，然后以该档次的要求来衡量、确定或调整档次，最后给分。
3. 词数少于40的和多于80的，从总分中减去2分。
4. 评分时，应主要从以下四个方面考虑：（1）对原文要点的理解和呈现情况；（2）应用语法结构和词汇的准确性；（3）上下文的连贯性；（4）对各要点表达的独立性情况。
5. 拼写与标点符号是语言准确性的一个重要方面，评分时，应视其对交际的影响程度予以考虑。
6. 如书写较差以致影响交际，可将分数降低一个档次。
二、各档次的给分范围和要求三、One possible version:Living in the public gaze, stars suffer from great pressure. （要点1）What’s worse, anxiety over their public appearance robs them of the objective self-image, which leads to the feeling of isolation in the long term. （要点2）While being tracked has been a headache to celebrities for centuries, modern cameras and the Internet make it harder to be famous nowadays. （要点3. 4）However, by dealing with the stress wisely, stars still can stay popular and happy. （要点5）听力原文：Text 1M: I can’t find my new tie. I need it for tonight’s party.W: Let’s look for it later. Right now, I need your help fixing this shelf before I paint it.Text 2W: If you had listened to me, we’d be at the party. Move over. I’ll dri ve.M: I was sure I knew the way here. I’ll turn around.Text 3W：Nick, why don’t you come and join us this afternoon? There’ll be a lot of fun.M：I’d love to, but I’ve got an exam.W: What about tomorrow afternoon？M: Saturday is OK.Text 4M:Gary, will you please pick up little Tom from school.W:I’m sorry. I’m afraid not.M: Why?W:A patient has just arrived. He was badly hurt in a traffic accident, I’m going to operate on him at once. Text 5W: David said he bought a new car with five thousand dollars.M: What kind is it?W: A BMW. I’m not sure what model.M: Are you sure? A BMW for five thousand? Sounds pretty cheap to me!Text 6W: Martin, you look terrible.M: Yes, I feel terrible. I'm really tired.W: How come?M: It’s the job. I’m having a lot of problems.W: So you don’t like your job.M: No. I really like the work. It’s interesting and exciting and I make my own decisions.W:So, what’s the problem then?M: The hours, I suppose. You know, I like to run the office, but I don’t have anyone to help m e take care of all the small problems. I have to do the typing, the paperwork, the advertising and other things.W: Why don’t you talk to your boss?M: Because he is never here. He spends most of his time in Hong Kong.W: Are you satisfied with your salary?M: It’s not too bad but the salary is not the problem.W: Well, you know, you are the manager of a new company, of course you’re busy.M: I just hope it’s not always this busy.Text 7M: Wow, your coats got very dirty. Did you fall?W: Yes. I had a terrible experience on the underground train when I was on the way to work. I tell you, a man came up to me and pulled out a knife. He pointed it right at me.M: Oh, no! Are you all right? Did he hurt you?W: No, he didn't, but he took my handbag.M: Then what happened? What did you do?W: I caught hold of his knife, and he pushed me to the floor.M: Oh, no! Why did you catch hold of his knife! That's dangerous.W: I don't know. I didn't think.M: What did the other passengers do? Did they help you?W: Yes. Two men ran after the robber and held him.M: Did the police come?W: Yes. The police were called, and two policemen came and took the robber to the police station.M: What a story! Thank God you are all right.Text 8M: What's the book you just picked up?W: The sociology Professor Smith uses in his course.M: You’d better read it if you want to pass the course.W: But it costs $ 40. I simply can’t afford it.M: Did you check the used book section here? Maybe they have it.W: No, they don’t. I’ve asked.M: Why don’t you get it from the library?W: Are you joking? I’ve been trying for months and it’s always out. There are more than 45 students in this course and every single one wants the book.M: Listen, you know my roommate Henry, don’t you? H e took the same course last year and I believe he owns the book. I’ll ask him if he’ll lend it to you.W: Oh, Tom, that would solve everything.Text 9W: Will you be having Thanksgiving at home or going to your mother’s place?M: Mum and Dad want to have all the family back home this year. So that’s where we’ll be. How about you? W: I plan to have everyone over to my place this year. It’s really a lot of work. But I love having my family all together.M: You are such a good cook. I bet your family love coming to your place too.W: I don’t do all the cooking myself. I think everyone will enjoy a little more, if they each bring something they’ve made.M: Do you have traditional dishes that you serve each year? I know our family does.W: Yes, we do. We always have turkey and dressing, and of course sweet potatoes. I think those are traditional dishes for most families. There is fruit salad we have every year and everyone looks forward to my pumpkin pie.M: What do the men do when you women are doing the cooking?W:It’s the same every year, football. They watch one game after another on Thanksgiving. I tell them that they ought to go out and get some exercise, but they just can’t.M: I know a lot of men are like that.Text 10This is Ned Weatherbee, your weatherman. This afternoon heavy rain fell in our town. The big storm caused a lot of damage, and traffic came to a complete stop. The storm is now over and the clean-up can begin.Now let’s look at the weather report for tomorrow and the weekend. Friday will be warm and sunny during the day and cool at night. Temperatures will be in the sixties during the day and in the forties at night. You won’t need a heavy coat, but take a jacket to work.The weather on Saturday will be nice in the morning and cloudy in t he afternoon. It’ll probably rain at night. These showers are quite normal during the spring. So you will have clear weather to do some gardening on Saturday morning. Sunday will be cold and windy, and maybe it will snow in the mountains. If you are planni ng to go there, don’t forget your boots and jackets. And now for sports, here is Matthew Delaney.。
浙江省名校新高考研究联盟(Z20联盟)2020届高三上学期第一次联考+化学+Word版含答案
绝密★考试结束前（高三署假返校联考）浙江省名校新高考研究联盟（Z20联盟）2020届第一次联考化学试题卷本试题卷分选择题和非选择题两部分，共8页，满分100分，考试时间90分钟。
可能用到的相对原子质量：H1 C12 N14 O16 Na23 Mg24 S32 Cl35.5 K39 Fe56 Zn65选择题部分一、选择题（本大题共16小题，每小题3分，共48分。
每小题列出的四个备选项中只有一个是符合题目要求的，不选、多选、错选均不得分）1.化学与社会、环境密切相关，下列说法正确的是A.光催化还原水制氢比电解水制氢更节能环保、更经济B.CO2、NO2或SO2都会导致酸雨的形成C.人造棉、蚕丝、棉花、涤纶的主要成分都是纤维素D.向汽油中添加乙醇后，该混合燃料的热值不变2.下列表示不正确．．．的是O B.乙烷的球棍模型：A.中子数为10的氧原子：188C.Mg2＋的结构示意图：D.次氯酸的电子式：3.下列有关物质性质与用途具有对应关系的是A.AgBr淡黄色难溶于水，可用于制作感光材科B.SiO2熔点高硬度大，可用于制光导纤维C.Al2O3是两性氧化物，可用作耐高温材料D.NH3沸点高易液化，可用作致冷剂4.下列说法正确的是A.准确量取25.00mL的液体可选用移液管、量筒或滴定管等量具B.实验过程中若皮肤不慎沾上少量酸液，应先用大量水冲洗，再用饱和碳酸氢钠溶液洗，最后再用水冲洗C.用分液漏斗分液时要经过振荡、放气、静置后，从上口倒出上层液体，在打开旋塞，将下层液体从下口放出D.在中和热测定实验中，盐酸和NaOH溶液的总质量m g，反应前后体系温度变化为t，反应液的比热容为cJ•g－1•°C－1，则生产1mol水放出的热量为5.在给定条件下，下列选项所示的物质间转化均能实现的是A.2323()()()CO NaCl aq NaHCO s Na CO s ∆−−−→−−→ B.()22()()()()NaOH aq CuCl aq Cu OH s Cu s ∆−−−−→−−−→葡萄糖 C.2226()()()MgCl H O s MgCl s Mg s ∆⋅−−→−−−−→HCl 熔融电解 D.233()()()O NH g NO g HNO g ∆−−−−→−−→2H O催化剂， 6.右表为元素周期表的一部分。
浙江省Z20名校联盟(名校新高考研究联盟)2022届高三上学期8月第一次联考 英语【含答案】
浙江省Z20名校联盟（名校新高考研究联盟）2022届高三上学期8月第一次联考英语【含答案】第一部分：听力（共两节，满分30分）做题时请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1.5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.What homework does the girl still need to complete?A. The quiz.B. The lab report.C. The research task.2.What is the topic for next week?A. A new website.B. Public transportation.C. A job interview3.Where are the speakers?A. At their home.B. In an office.C. In a shop.4. What can we learn from the conversation?A. It is raining.B. The man needs an umbrella.C. The woman brought an umbrella.5.What is the main subject of the conversation?A. Jobs.B. Education.C. The world economy.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。
高三上学期完形填空专项练习小卷一
中学完形填空专练小卷（一）（2024届浙江省强基联盟适应性考试英语试题）A mistake made six years ago has turned into a holiday tradition. A grandmother who mistakenly 1 a stranger to attend the family’s Thanksgiving dinner in 2016 ended up making a 2 , and now the pair have 3 the holiday together every year since. This year is no exception.In 2016, Wanda Dench tried to text her grandson about the family’s Thanksgiving dinner plans, but she 4 added a stranger to the message. Jamal Hinton was on the receiving end of the holiday text and jokingly accepted her 5 .“You’re not my grandma,” Hinton wrote back, including a selfie to 6 he was not the grandson Dench thought she was texting. “Can I still get a plate though?”Dench, ever the 7 grandmother, replied, “Of course you can. That’s what Grandmas do… 8 everyone.” Hinton posted about the funny mix-up and it went viral (疯传). And on Thanksgiving day, he 9 drove from Tempe, Arizona to Mesa to 10 the Dench family for the holiday. And every year since, Hinton and Dench have got together for the holiday.In 2020, he informed followers of some sad news—Dench’s husband, Lonnie, had died from COVID-19. So last Thanksgiving, 11 Lonnie, the family held a small, pared-down (精简的) 12 the day after the holiday to keep the 13 alive.This year, Hinton tweeted, “We are all set for year 6!”, 14 a screenshot of their text exchange as usual. Dench’s name is saved in his phone as “Grandma Wanda”. The story of 15 went viral again—spreading some holiday cheer on social media.1．A．reminded B．invited C．forced D．allowed 2．A．friend B．deal C．decision D．story 3．A．planned B．organized C．celebrated D．booked 4．A．carefully B．purposefully C．secretly D．accidentally 5．A．gift B．idea C．offer D．apology 6．A．argue B．pretend C．show D．announce 7．A．generous B．strict C．patient D．caring 8．A．forgive B．feed C．remember D．understand 9．A．casually B．hardly C．nearly D．actually 10．A．disturb B．join C．greet D．congratulate 11．A．in honor of B．in search of C．in praise of D．in place of 12．A．conversation B．conference C．competition D．gathering 13．A．mistake B．news C．tradition D．holiday 14．A．taking B．enjoying C．collecting D．sharing 15．A．honesty B．kindness C．generosity D．toughness（浙江省名校协作体2023-2024学年高三上学期返校联考英语试题）Five years ago, I was a trail ride leader at a holiday farm in Victoria. My favourite horse was a warmblooded called Holly, a chestnut mare. Aged seven, she was 16 , sweet-natured and well-trained; the only17 with Holly was her vivid imagination. I was constantly surprised by Holly’ s ability to be18 by rabbits, the wind or even shadows - sometimes her own shadow!One day, as we headed back from a ride on the beach, Holly and I were 19 the wayover the hilly area. When we got to one particularly long, steep hill, Holly began to twitch (抽动) her ears and step in place. So, when she 20 to sniff(嗅) and give all the 21 that she believed the ‘horse-eating monsters’ were close, I became a little worried.At the bottom of the hill as we rounded a corner, Holly 22 with caution, and so I followed her gaze to the path ahead. There, sunning itself in the middle of the track, was a brown 23 . This time it was my 24 to get scared; I was on a nervous horse, leading a group of eight inexperienced pre-teen riders. Unexpectedly, Holly was firmly 25 , ears forward. With the snake in her sight, she was no longer worried.I have heard that horses have a better sense of 26 than dogs. I hadn't seen it 27 before that moment. 28 , while we waited in reality for just a second or two - but for what felt like a century - the snake awoke and glided calmly off into the bush.Holly then 29 , leading the horses with caution and care. She had been alert to danger and had been 30 for the safety of us all. Following in the footsteps or their lead mare, not one of the other horses showed any fear.16．A．negative B．graceful C．pitiful D．aggressive 17．A．solution B．reaction C．problem D．difficulty 18．A．frightened B．delighted C．touched D．attracted 19．A．chasing B．leading C．following D．pushing 20．A．proceeded B．preferred C．hesitated D．refused 21．A．evidence B．truth C．signals D．symbols 22．A．sped B．rushed C．escaped D．slowed 23．A．rabbit B．horse C．monster D．snake 24．A．turn B．case C．chance D．rule 25．A．sealed B．planted C．fastened D．frozen 26．A．vision B．direction C．smell D．hearing 27．A．proved B．denied C．ignored D．demonstrated 28．A．Unfortunately B．Undoubtedly C．Thankfully D．Instantly 29．A．fell off B．went back C．came out D．stepped forward 30．A．responsible B．regretful C．grateful D．available（浙江省嘉兴八校联盟2022-2023学年高二下学期期中联考英语试题）At the age of 60, my father was hit by a car when he walked to a nearby supermarket to buy vegetables. After sleeping for two months in hospital, he finally woke up. His waking up 31 all our family. Unluckily, he didn’t know any of us. Doctors said his brain was hurt so 32 that he had lost all his memory. And his mental age was only five. We were sorry to hear about the bad news.Since I was his only child, it was my 33 to look after him. He forgot nearly everything, but he did remember he liked sweets. I used the sweets as a way of 34 bad behaviors. I would give him one sweet 35 he didn’t sit on the ground, a second for stopping painting on the wall, and another for not trying to put clothes on the dog.Dad became the 36 child in town. He broke my window with a ball and 37 our telephone in water like washing clothes. When I told him he was doing 38 things, he would answer smilingly, “I like that!” My son, then aged five, and two eight-year-old daughters, welcomed their 39 playmate. He would happily make them real cigarettes, and 40 his sweets with them.It is eight years since the 41 . Dad has accepted the fact that he is the 42 of his three playmates but not a brother. He has also accepted that they grow taller but his 43 stays the same. Though it is still 44 to take care of him, he brings us a lot of fun. In some way I think it is a(n) 45 thing to look after dad like looking after a child. How many people can have the chance to care for a child-like parent?31．A．excited B．calmed C．hurt D．protected 32．A．slowly B．strangely C．lightly D．seriously 33．A．idea B．duty C．favor D．habit 34．A．stopping B．performing C．accepting D．planning 35．A．so B．though C．if D．before 36．A．cleverest B．oldest C．bravest D．kindest 37．A．repaired B．designed C．answered D．cleaned 38．A．useless B．wrong C．kind D．impolite 39．A．foolish B．big C．shy D．foreign 40．A．show B．lend C．share D．sell 41．A．graduation B．invention C．mistake D．accident 42．A．teacher B．grandfather C．doctor D．uncle 43．A．weight B．age C．height D．look 44．A．tiring B．relaxing C．amusing D．interesting 45．A．perfect B．important C．easy D．happy（Z20名校联盟（浙江省名校新高考研究联盟）2023-2024学年高三上学期第一次联考英语试题）Tidying your desk, watering your plants, folding clothes — these household chores are hardly the height of pleasure. Yet I often find myself 46 these little tasks.If I’m stuck in writer’s block with a deadline 47 , I’ll have to clear up the papers placed around my office — and it’s sometimes the most 48 I feel all day.I’m not 49 in this. As we faced the stresses of the pandemic, many people reported finding renewed interest in 50 their homes as a way of coping with uncertainty.Psychologists suggest there are many potential mechanisms (机制) that can explain the pleasure from these tasks and their benefits-these may well encourage you to 51 these odd jobs more often.Little chores may be useful because they 52 the mind, leading us to devote fewer resources to the things that 53 us. Even if we struggle with activities that are meant to help us relax, we may find household tasks can help us appreciate the here and now. But this depends on where we place our 54 .In one of the few studies to examine the mental health benefits of washing the dishes, researchers at Florida State University divided 51 55 into two groups. Half read a text that encouraged them to 56 focus their thoughts on the activity. “While washing the dishes, one should be completely 57 of the fact that one is washing the dishes,” they were told. The rest read factual instructions on how to do washing up without being encouraged to focus their awareness on the activity.Afterwards, the participants were asked to take a questionnaire about their 58 . Those who had fully engaged with the experience reported a significantly better mood. This included 59 nervousness and even a sense of “inspiration”, as if the simple activity had60 their minds.46．A．ignoring B．enjoying C．avoiding D．simplifying 47．A．agreed B．established C．passing D．approaching 48．A．relaxed B．bored C．worried D．annoyed 49．A．confident B．fit C．alone D．stuck 50．A．opening up B．setting up C．returning to D．looking after 51．A．deal with B．give up C．learn about D．engage in 52．A．occupy B．broaden C．motivate D．challenge 53．A．interest B．bother C．delight D．surprise 54．A．focus B．hope C．emphasis D．happiness 55．A．dishes B．households C．participants D．tasks 56．A．entirely B．quickly C．mainly D．initially 57．A．sure B．proud C．glad D．aware 58．A．interests B．abilities C．feelings D．habits 59．A．continued B．increased C．unexplained D．reduced 60．A．slipped B．refreshed C．developed D．exhausted（浙江省A9协作体2023-2024学年高二上学期暑假返校联考英语试题）Dogs are more faithful than other animals, so they are considered as man’s best friends. Recently a dog named Capitan has shown us why dogs are a symbol of 61 and friendship.In 2005, Capitan was 62 by a man named Miguel Guzman in Argentina. Miguel got Capitan as a(n) 63 for his son Damian. In 2006, Miguel passed away, and 64 , Capitan disappeared. They thought he was 65 or had been adopted by another family.66 , when Damian and his mother went to visit Miguel’s grave, they were 67 to see Capitan at the cemetery(公墓). They couldn’t believe it because they had 68 brought Capitan to the cemetery before. They didn’t know how he had 69 the grave, but the dog was there barking and 70 . Damian’s mother said, “We went back the next Sunday, and he was there again. This time, he 71 us home and spent a few hours with us, but then went back to the cemetery before it got 72 . It was probable that he didn’t want to leave Miguel on his own at night.”Later, they tried to bring the dog home many times, but each time Capitan would 73 and return to the cemetery. For eleven years, he 74 there and was taken care of by the cemetery staff. In 2018, Capitan’s life came to an end. He was 75 buried next to his master he loved so much.61．A．honesty B．loyalty C．hardworking D．generosity 62．A．cured B．abandoned C．sold D．adopted 63．A．gift B．assistant C．tutor D．reference 64．A．as usual B．once again C．soon after D．long before 65．A．sick B．lost C．mature D．hidden 66．A．Therefore B．Moreover C．Meanwhile D．However 67．A．surprised B．disappointed C．horrified D．embarrassed 68．A．once B．generally C．never D．occasionally 69．A．occupied B．found C．protected D．dug 70．A．rolling B．sleeping C．wandering D．crying71．A．followed B．led C．observed D．welcomed 72．A．terrible B．cold C．dark D．crowded 73．A．give back B．run away C．carry on D．wake up 74．A．struggled B．waited C．worked D．lived 75．A．eventually B．immediately C．secretly D．probably答案1．B 2．A 3．C 4．D 5．C 6．C 7．D 8．B 9．D 10．B 11．A 12．D 13．C 14．D 15．B16．B 17．C 18．A 19．B 20．A 21．C 22．D 23．D 24．A 25．B 26．C 27．D 28．C 29．D 30．A31．A 32．D 33．B 34．A 35．C 36．B 37．D 38．B 39．B 40．C 41．D 42．B 43．C 44．A 45．D46．B 47．D 48．A 49．C 50．D 51．D 52．A 53．B 54．A 55．C 56．A 57．D 58．C 59．D 60．B61．B 62．D 63．A 64．C 65．B 66．D 67．A 68．C 69．B 70．D 71．A 72．C 73．B 74．D 75．A。
浙江省名校新高考研究联盟Z联盟高三英语上学期第一次联考试题
浙江省名校新高考研究联盟（Z20联盟）2020届高三英语上学期第一次联考试题考生须知：1.本试题卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题），满分为150分，考试时间为120分钟。
2.用黑色签字笔将学校、班级、姓名、考号分别填写在答题卷和机读卡的相应位置上。
第Ⅰ卷（选择题部分）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。
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。
例：Hour much is the shirt?A.￡19.15.B. ￡9.15C.￡9.18答案是B。
1.What is the woman planning to do?A. Search for the new tie.B. Paint the shelf.C.Fix the shelf2.What can we learn from the conversation?A. The man can't drive well.B. The car has broken down.C.They are on the wrong way3. When does the conversation take place?A. On Friday.B. On Saturday.C. On Sunday.4. Who is the man?A. A teacher.B.A doctor.C. A patient5. What does the man think about the price of the car?A. AcceptableB.Too highC.Unbelievable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。
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。
2020届浙江省名校新高考研究联盟(Z20联盟)2017级高三上学期第一次联考英语参考答案
Z20联盟（浙江省名校新高考研究联盟）2020届第一次联考英语参考答案第一部分：听力（满分30分，其中第一节7.5分，第二节22.5分）第一节1-5 BCABC第二节6-10 ACABC 11-15 ABACC 16-20 CBAAB第二部分：阅读理解（满分35分, 其中第一节25分,第二节10分）第一节21-25 CADBC 26-30 DCBBD第二节31-35 CADBE第三部分：语言运用（满分45分，其中第一节30分，第二节15分）第一节36-40 CBCBA 41-45 DADCD 46-50 CDAAB 51-55CBBAD第二节56. invention 57. addicted 58. using 59. it 60. but61. as 62. who 63. drinks 64. original 65. has been kept第四部分：写作（共两节，满分40分）第一节：应用文写作（满分15分）一、评分原则1. 本题总分为15分，按5个档次给分。
2. 评分时，先根据文章的内容和语言初步确定其所属档次，然后以该档次的要求来衡量、确定或调整档次，最后给分。
3. 词数少于60和多于100的，从总分中减去2分。
4. 评分时，应注意的主要内容为：内容要点、应用词汇和语法结构的丰富性和准确性及上下文的连贯性。
5. 拼写与标点符号是语言准确性的一个方面，评分时，应视其对交际的影响程度予以考虑。
英美拼写及词汇用法均可接受。
6. 如书写较差，以至影响交际，将分数降低一个档次。
二、各档次的给分范围和要求浙江省名校新高考研究联盟（Z20联盟）2020届第一次联考英语参考答案第 1 页共 6 页。
2020届浙江省名校协作体高三上学期联考英语试卷及答案
2020届浙江省名校协作体高三上学期联考英语试卷考生须知：1.本卷满分150分，考试时间120分钟；2.答题前，在答题卷指定区域填写学校、班级、姓名、试场号、座位号及准考证号。
3.所有答案必须写在答题卷上，写在试卷上无效；4.考试结束后，只需上交答题卷。
第Ⅰ卷(选择题部分，共95分)第一部分听力(共两节，满分30分)第一节短对话(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 does the boy refuse the girl’s offer?A. He wants to get a better grade.B. He is busy with a reading group.C. He has to get to school early.2. What has the man been doing?A. Reading a book.B. Writing a report.C. Fixing the power.3. What are the speakers mainly talking about?A. A road.B. A shop.C. A product.4. How much will the woman pay for the tickets?A.$15.B. $20.C. $30.5. What is the relationship between the speakers?A. Friends.B. Co-workers. C Sister and brother.第二节(共15小题；每小题15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，并标在试卷的相应位置。
2021-2022学年浙江省Z20名校联盟高三(上)第一次联考英语试卷(附答案详解)
2021-2022学年浙江省Z20名校联盟高三（上）第一次联考英语试卷一、阅读理解（本大题共10小题，共25.0分）AMarty Verel,a 59-year-old kidney transplant patient in Ohio,should have been near the top of the list to receive a COVID-19 vaccine.Yet like millions of others,he wasn't having any luck.Marty and his wife,Nancy Verel,would sit with computers on their laps trying for hours to book an appointment on different sites,all of which were complex. "I felt hopeless," Nancy says. Then Nancy heard about Marla Zwinggi,a 40-year-old mom of three who was spending up to ten hours a day online trying to secure appointments for vulnerable（易受攻击的）individuals.So Nancy messaged Marla on Facebook：Can you help？Twenty-five minutes later,Marla responded by asking for Marty's legal name,date of birth,and other information.Nine minutes after that,Marla reported back-Marty had an appointment.Marla's vaccine hunting started on February 1，when she learned that her parents-her father has leukemia（白血病）and her mother is a breast cancer survivor with a heart-condition-were unable to get appointments themselves.She hated that they had to wait.Clicking around on vaccine registration sites,Marla discovered just how difficult it was to book an appointment. "It was like trying to get a World Series ticket," she says.She applied strategies that web insiders are familiar with（keeping multiple browsers open,refreshing sites every 20 seconds,erasing cookies）and added a few of her special skills. "I'm determined.I drink a lot of coffee,and I'm a fast typer," she says.Soon enough,Marla had secured appointments for her parents. "I felt like a rock star," she says.Marla decided that helping others would be her way of giving back. "I feel like I need to will us out of this pandemic（大流行病）" she says.On February 10，she logged on to Facebook to let people know that she was assisting with bookings.By March 2，she'd secured appointments for 400 seniors,a feat that made Nancy conclude, "Marla is some sort of COVID angel."1.Why did Nancy and Marty fail to make an appointment themselves？______A. They had no access to the websites.B. Too many people applied at the same time.C. They were not among the first seniors to be vaccinated.D. The registration sites were too difficult for them.2.What does the underlined word "feat" in the last paragraph refer to？______A. strategy.B. reward.C. achievement.D. service.3.Which of the following words best describe Marla？______A. Helpful and skillful.B. Reliable and humorous.C. Confident and generous.D. Ambitious and cooperative.BThe e-commerce（电子商务）company that people talk about most these days is neither Amazon,the American giant,nor Alibaba,China's biggest.It is Pinduoduo（PDD），a Chinese firm that started in 2015 as an online food supplier,but whose success has driven its market value above ＄200 st year it was China's fastest-growing internet stock （股票），rising by 330%.PDD attracts attention for two reasons.One is its business model.David Liu,vice-president of strategy,explains that it has ridden the rise of smartphone popularization rate in China to create an e-commerce experience in which people club together to buy products from computers to bananas.During the spread of Covid-19，this has expanded into a fast-growing business across thousands of towns and villages,in which PDD's users gather to order delivery of local farm produce at bargain prices.This is called "community group-buy" or "interactive commerce". The second is the way PDD has broken the myth that the giants of online shopping are unbeatable.Until a few years ago,China's e-commerce market seemed a two-way contest between Alibaba and .It is not the case now.Experts expect PDD's share of online sales in China to be larger than that of JD in 2021 and the number of users to surpass（超过）Alibaba.And although PDD pays out huge funds to attract customers from poorer parts of China to its app,they think it may turn profitable this year.Remarkably,PDD has done this less by replacing its bigger competitors than by employing parts of the market they have been unable to reach.Although online sales of groceries have rocketed during the pandemic,less than a tenth of the 8.1 trillion yuan farm-produce market is bought and sold digitally.However competitive a market looks,there is opportunity for newcomers because e-commerce is at an early stage of development.4.Which contributes to the success of PDD's business model？______A. The popularity of smartphones.B. The wide spread of Covid-19.C. The bargain prices of farm produce.D. The rapid growth of online shopping.5.What can we infer from the last two paragraphs？______A. The giants of online shopping can't be replaced.B. PDD has taken most market share from its competitors.C. PDD will become China's biggest e-commerce company.D. New companies have chance in online farm-produce market.6.What's the passage mainly about？______A. The most discussed company in China.B. The rise of e-commerce company PDD.C. The development of e-commerce in China.D. The influence of PDD on e-commerce.CEarth's longest artificial structure is usually said to be the Great Wall of China while the second-longest is not a wall,but a fence.It stretches for 5，614km across eastern Australia and is intended to stop the country's wild dogs,the dingoes,from hunting sheep.Australia's dingo fence does not stand lions of kilometres of fences wrap the world.Some are intended to limit the movement of animals,some the movement of people,and some merely to mark the the boundary.Until recently,data on the effects of fences on wildlife have been inadequate.That has changed with the publication of a report by professor Alex McInturff.One discovery he has made is that more than half of published fence research focuses on just fivecountries-America,Australia,Botswana,China and South Africa.A second is that only a third of these studies examined the impact of fences on anything other than the target species involved,meaning the animals purposely intended to be kept in or out.Non-target species,however,are often those that have their fortunes most greatly reshaped by the appearance of poles and wire.Australian fences intended to keep out dingoes are also barriers to long-necked turtles,which travel great distances over land when moving between nesting sites.In Botswana fences built to spare cattle from wildlife-borne disease result in serious interference with wildebeest（角马）migrations.Not every creature fares badly.Hawks（鹰）in Montana gladly sit on newly built livestock fences to hunt small animals,while fence-based spiders in South Africa outperform theirtree-based cousins when it comes to catching insects.Often,though,the winners are creatures that cause trouble for existing ecosystems.Keeping dingoes out of large parts of Australia has allowed aggressive red foxes to multiply.Native rodents（啮齿类动物）have suffered as a result.Some have been brought to the edge of extinction.7.Which is a purpose of building fences？______A. To expand the boundary of a country.B. To protect livestock like sheep and cattle.C. To stop wild animals from being hunted.D. To help people move around freely.8.What can we learn about the studies on fences？______A. Data on the impact of fences have been proved.B. Previous researches were complete and systematic.C. About two-thirds of the studies focus on the target animals.D. Not all studies examined the effect of fences on wildlife.9.Which animals unexpectedly benefit from fences？______A. Cattle in Botswana.B. Wildebeest in Botswana.C. Red foxes in Australia.D. Native rodents in Australia.10.What is the writer's attitude to the fences around the world？______A. Disapproving.B. Favorable.C. Objective.D. Cautious.二、阅读七选五（本大题共5小题，共10.0分）Four Steps to Help Someone Having a Panic Attack In the United States,1 in 3 people will have an anxiety disorder at some point in their lives,according to the National Institute of Mental Health. (1) .If your loved one is having a panic attack,there are several ways you can help.With a few research-backed techniques,you'll be better equipped to provide support.Name it and stay calmGently name it,and tell your loved one that you believe they are having a panic attack. (2) .You can let them know that it will pass.And one of the best ways to help your beloved ones is to remain calm themselves by taking deep breaths and reminding themselves that this is temporary,even if they're feeling a little uneasy about what's happening.Give them spaceYour loved one may need some space during a panic attack.After reminding them that they can handle their symptoms,you can give your loved one space until their panic attack passes. (3) .If they do,improve their ability to independently experience their symptoms by offering the coping statement once or twice and letting them ride out their symptoms until they pass. (4) .While someone is having a panic attack,we do want to be empathic（移情的），but we don't want to stress the idea that panic is dangerous,harmful,or needing to be reduced,minimized,or escaped.So,rather than giving your loved one lots of comfort and concern,it can help to remind them that they can cope with what's happening on their own.This gives them back their power to deal with the situation.You can do this by offering supportive statements like："You can handle these symptoms."" (5) ""This will pass."A.Look after yourselfB.Offer a coping statementC.Why are you so upset over that？D.They might ask you to stick around.E.The feelings aren't comfortable,but you can accept them.F.Statistics show that women are twice as likely as men to have a panic disorder.G.This can provide some context for what's happening and relieve the fear of the unknown.11. A. A B. B C. C D. D E.E F.F G. G12. A. A B. B C. C D. D E.E F.F G. G13. A. A B. B C. C D. D E.E F.F G. G14. A. A B. B C. C D. D E.E F.F G. G15. A. A B. B C. C D. D E.E F.F G. G三、完形填空（本大题共20小题，共30.0分）Johnny was sound asleep when he was awakened by a loud commotion（骚动）.He opened his eyes and lay(16).He could hear shouts and screams coming from the outside.Sensing that(17) was wrong,he quickly slipped into a pair of jeans and(18) his T-shirt,and rushed out of the house.A huge crowd(19)at one of the houses further up the street.The house was flaming and thick clouds of(20)were floating up into the air.Johnny went back into the house and made a（an）(21) call to the fire department.Then,he ran out again towards the burning house.It was Mr.Smith's house.Mr.Smith and his wife were (22)out of the house but their 9-year-old daughter was still(23) inside the house on fire.The neighbors had formed a human chain and were using buckets of water to put out the fire but (24).Johnny could hear the(25) cries of the young girl inside the house.Without thinking twice Johnny threw himself at the door and(26) the house.Thick smoke filled the room.He was almost (27)by it.Johnny held his breath and managed to(28) the young girl.He carried her over his right shoulder and (29) out of the house and placed her on a grass patch.Soon,the fire engine and the(30) arrived.The doctors quickly(31) the girl to the hospital accompanied by Mr.and Mrs.Smith.The firemen used their big hoses to put the fire out (32) the house was completely ruined.A few days later,Mr.and Mrs.Smith came to Johnny's house.Their daughter was still(33) in hospital as she had suffered some minor(34).The couple thanked Johnny for rescuing their daughter.It was Johnny's quick thinking and (35) that made a great difference to the Smiths.16. A. hesitating B. listening C. thinking D. trembling17. A. something B. nothing C. everything D. anything18. A. threw away B. took off C. threw on D. took in19. A. gathered B. gossiped C. cried D. watched20. A. flames B. steam C. dust D. smoke21. A. urgent B. personal C. first D. important22. A. eagerly B. safely C. cautiously D. finally23. A. kept B. forgotten C. trapped D. abandoned24. A. in surprise B. in time C. in turn D. in vain25. A. deafening B. desperate C. frightening D. thrilled26. A. slipped into B. walked into C. broke into D. fell into27. A. overcome B. hurt C. covered D. attracted28. A. locate B. place C. search D. remove29. A. marched B. wandered C. dashed D. stepped30. A. firemen B. policemen C. taxi D. ambulance31. A. walked B. rushed C. drove D. dragged32. A. but B. after C. so D. while33. A. living B. sleeping C. recovering D. struggling34. A. bites B. cuts C. wounds D. burns35. A. optimism B. bravery C. skill D. wisdom四、语法填空（本大题共1小题，共15.0分）36.The game of basketball was created by Dr.Naismith,（1）______Canadian who worked asa physical education instructor at the Springfield College.The New England winters were very cold,and the students were unwilling to do outdoor （2）______（activity）.Naismith determined that a fast-moving game（3）______ could be played indoors would fill the empty afternoons after the baseball and football seasons had ended.First he tried to change outdoor games such as soccer to indoor play,but he soon found them（4）______（suitable）for small areas.（5）______ December of 1891，Naismith hung two old peach baskets at either end of the gym at the school,and,using a soccer ball and nine players on each side,（6）______（organize）the first basketball game.The early rules allowed three points for each basket and banned （7）______（run）with the ball.Five years later,a championship（8）______（hold）in New York City.By that time,the team had been reduced to seven players,and five became standard in the 1897 season.（9）______ basketball first appeared in the 1904 Olympic Games,it quickly spread throughout the world.In 1906，a metal ring was used （10）______（replace）the basket for the first time,but the name basketball has remained.五、书面表达（本大题共2小题，共40.0分）37.假定你是李华，你的英国朋友Philip 送给你一本英语读物，你读后收获颇多。
高三试卷英语-浙江省Z20名校新高考研究联盟2022-2023学年高三上学期第一次联考英语试卷及参考
Z20名校联盟（浙江省名校新高考研宄联盟）2023届髙三第一次联考英语试题第I卷第一部分：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.What is the man's middle name?A.Andy.B.James.C.Lee.2.Who will play with Simon?A.His sister.B.His mother.C.His father.3.Where does the conversation take place?A.In a holiday house in Spain.B.In the speakers’new house.C.At the home of the woman’s parents.4.What will the man do next?A.Cook supper.B.Meet with a buyer.C.Return to his office.5.When does the bank close on Saturdays?A.At1:00p.m.B.At3:00p.m.C.At4:00p.m.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 day is it today?A.Wednesday.B.Thursday.C.Friday.7.What will Mark’s father probably do tomorrow?A.Fly to Singapore.B.Perform in a concert.C.Sing a song for the class.听第7段材料，回答第8、9题。
【英语原稿】2020届高三Z20联盟开学考
浙江新高考资料群提供811176101绝密★考试结束前(高三暑假返校联考)浙江省名校新高考研究联盟(Z20联盟)2020届第一次联考英语试题卷命题：德清高级中学施勤敏、曹晓霞审题：萧山中学汪惟川元济高级中学吴国军校对：李俊、陈星可考生须知：1．本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)，满分为150分，考试时间为120分钟2．请用黑色签字笔将学校、班级、姓名、考号分别填写在答题卷和机读卡的相应位置上第Ⅰ卷(选择题部分)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，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，例: How much is the shirt?A.￡19.15B.￡9.15C.￡9.l8.答案是B1. What is the woman planning to do?A.Search for the new tieB.Paint the shelf.C.Fix the shelf.2. What can we learn from the conversation?A.The man can't drive wellB.The car has broken downC.They are on the wrong way3. When does the conversation take place?A.On Friday.B.On SaturdayC.On Sunday4. Who is the man?A.A teacherB.A doctorC.A patient5. What does the man think about the price of the car?A.AcceptableB.Too highC.Unbelievable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。
浙江省Z20名校联盟(浙江省名校新高考研究联盟)2025届高三第一次联考+数学答案
Z20名校联盟（浙江省名校新高考研究联盟）2025届高三第一次联考数学参考答案一、单选题：本题共8小题，每小题5分，共40分.在每小题给出的选项中，只有一项是符合题目要求的. 1．【答案】B【解析】{|12}A x x =-≤≤，3{|}2B x x =<，所以A B =3{|1}2x x -≤<，故选B.2．【答案】D【解析】347232(2)(150)6C x x x=--，故选D.3．【答案】D【解析】113137951913()13131242999133()2a a S a S a a a +===⨯=+，故选D. 4．【答案】C【解析】由分布列的11136a ++=，得12a =，所以11111()1233266E X =⨯+⨯+⨯=,所以14(21)2()13E X E X +=+=，故选C.5．【答案】B若函数()f x 在(1,)+∞上单调递增，则1210a a ⎧≤⎪⎨⎪-≥⎩，得1a ≤，所以“2a ≤”是“函数()f x 在(1,)+∞上单调递增”的必要不充分条件. 6．【答案】C【解析】因为(0,1)x ∈，则，得666x πππωω<+<+，由题意得3262πππω<+≤，得433ππω<≤，故选C. 7．【答案】A【解析】将圆台母线延长交于点S ，得圆锥1SO ，作圆锥1SO 的轴截面如右图，设底面直径2AB R =，由条件知11cos 3SAO ∠=，得3SA R =，1SO =，设内切球半径为r ，则12OT OO OO r ===，所以3SO r =，那么14SO r ==，则R =，2O 为1SO 的中点，CD 为SAB ∆的中位线，1A于是内切球的体积3143V r π=，圆台的体积2232171772483243V R SO r r r πππ=⋅⋅=⋅⋅=,所以圆台与其内切球的体积比为2174V V =，故选A.8．【答案】C【解析】令()()()0h x f x g x =-=，即2(1)1=cos 22xa x ax π---，整理得方程21cos 2xax a π+-=在(1,1)-上有解，记2()1,()cos 2xF x ax aG x π=+-=，即函数(),()F x G x 图像有公共点，如图，0()1G x <≤，当0a ≤时，2()11F x ax a =+-≤-， 显然函数(),()F x G x 图像无公共点，当0a >时，由(),()F x G x 图像的对称性，得(0)(0)(1)(1)F G F G ≤⎧⎨>⎩，即11210a a -≤⎧⎨->⎩，解得122a <≤，故选C.二、多选题：本题共3小题，共18分.在每小题给出的选项中，有多项符合题目要求. 9．【答案】BCD【解析】若1c =，2510a b ==，则25log 10,log 10a b ==，显然25log 10log 101a b c =≠+=+，故A 不正确.因为,,0a b c >，显然a b c >>，故B 正确.设2510a b c t ===，得2510log ,log ,log a t b t c t ===，则111log 2,log 5,log 10t t t a b c ===，所以111log 2log 5log 10t t t a b c+=+==，故C 正确. 对于D ，1144(4)()(14)9b aa b c a b c c a b a b+=++=+++≥，故D 正确. 10．【答案】AC【解析】如图，选项A ，直线2y x =，d CM ==，||2||AB AM ===A 正确.对于选项B ，CA CB ⋅u u r u u r||||cos cos CA CB ACB ACB =⋅∠=∠因为点A, B 不重合，所以cos 1ACB ∠<，故B 不正确. 对于选项C ，||||(||||)(||||)OA OB OM MA OM MA ⋅=+- 222222||||||()OM MA OC d r d =-=---22||1OC r =-=，故C 正确.对于选项D ，如图线段AB 中点M 满足OM CM ⊥，M 的轨迹是以OC 为直径的圆（圆C 内部部分），所以轨迹长为12222π⋅=，故D 不正确. 11．【答案】ACD【解析】当2n =时，22(cos )1cos22sin 22cos f x x x x =-==-，那么2()222f x x =-≤，故A 正确.对于B ，当3n =时，(cos )[cos()]1cos3()f x f x x ππ-=-=-- 1cos(33)x π=--1cos3x =+,三、填空题：本题共3小题，共15分.12．【答案】11314【解析】设双曲线得右焦点为F '，BF m =，则4AF m =，连结'AF ，'BF ，则'2BF m a =+，42AF m a '=+, 在BFF '∆中，BFF '∠=60︒，由余弦定理得222(2)42m a m c mc +=+-，整理得2222(2)c a m a c -=+ ①在AFF '∆中，120AFF '∠=︒，由余弦定理得222(42)1648m a m c mc +=++，整理得22(42)c a m a c -=- ②① ②两式相除得，222a c c+=，得65a c =，所以渐近线方程为5y x =±.四、解答题：本题共5小题，共77分.解答应写出文字说明，证明过程或演算步骤. 15．（本小题满分13分） 【解析】 （1）连结AQ ，因为PM //平面ABC ，PM ⊂平面ADQ又平面ADQ 与平面ABC 相交于AQ ，所以//PM AQ ， 因为P 是AD 的中点，所以M 是DQ 中点. ┄┄6 （2）方法一，因为AD ⊥底面BCD ，BC CD ⊥，如图建立坐标系， ┄┄7(2,0,0)D ，(0,2,0)B ，(2,0,2)A ，(0,1,0)Q ， (2,1,0)DQ =-uuu r ，(2,0,2)CA =uu r ，(0,2,0)CB =uu r, 则平面ABC 的法向量为(1,0,1)=-n ，┄┄9 所以cos ,DQ DQ >=DQ ⋅<=⋅u u u ru u u r u u u rn n n，┄┄12 因此直线DQ 与平面ABC . ┄┄13 方法二，取AC 中点N ，因为DA DC =，所以DN AC ⊥, 因为AD ⊥底面BCD ，所以AD BC ⊥，又BC CD ⊥，则BC ⊥平面ACD ， ┄┄7 所以BC DN ⊥ 所以DN ⊥平面ABC ，于是DQN ∠即为所求，┄┄9DN DQ┄┄11因此sin DN DQN DQ ∠=. ┄┄13 方法三，设D 到平面ABC 的距离为d ，1242333A BCDBCD V AD S -∆=⋅=⨯=， ┄┄8易知12ABC S BC AC ∆=⋅= ┄┄9所以1433A BCD D ABC ABC V V d S --∆==⋅==，得d11因此直线DQ 与平面ABC 所成角的正弦值d DQ ┄┄13P B16．（本小题满分15分） 【解析】（1）由sin sin cos =22sin a c A CB c C--=, ┄┄2 则2sin cos =sin sin sin()sin sin cos sin cos sin C B A C B C C B C C B C -=+-=+- 整理得sin sin cos sin cos sin()C B C C B B C =-=-,则C B C =-，即2B C =， ┄┄5由3A π=，得233B C C π+==，则24,99C B ππ==. ┄┄7（2）由ABC ∆是锐角三角形知2232B C B C C ππ⎧=<⎪⎪⎨⎪+=>⎪⎩，得64C ππ<<， ┄┄9则cos C << ┄┄11 由正弦定理得sin c b B =，得sin 4sin 28cos sin sin c B Cb C C C===, ┄┄13因此b <<┄┄1517．（本小题满分15分） 【解析】（1）由条件得12c e a ==，即2a c =，则b，┄┄2所以12OM a c ==，2max 1()()2BMP S b a c ∆=+1c =，┄┄4因此椭圆E 的方程为22143x y +=. ┄┄6 （2）设直线PQ ：(1)y k x =+，1122(,),(,)P x y Q x y ，BP uu r11(2,)x y =-，BQ uu u r 22(2,)x y =-,与椭圆联列方程得22(1)3412y k x x y =+⎧⎨+=⎩，得2222(34)84120k x k x k +++-=， 则221212228412,3434k k x x x x k k -+=-=++, ┄┄8所以BP BQ ⋅uu r uu u r212121212(2(2(2(2(1(1x x y y x x k x x =--+=--+++）））））） ┄┄1022222222121222(1)(412)8(2)(1)(2)()443434k k k k k x x k x x k k k k+--=++-+++=-++++ 2227634k k ==+，┄┄13 得26k =，k =PQ 的方程为1)y x =+. ┄┄1518．（本小题满分17分） 【解析】（1）()()(1)ln (1)ln(1)g x f x f x x x x x =+-=+--，01x <<,令'()1ln ln(1)1ln ln(1)g x x x x x =+---=--， ┄┄1令'()0g x =，得12x =， ┄┄2 当1(0,)2x ∈时，'()0g x <，当1(,1)2x ∈时，'()0g x >，所以()g x 有极小值1()ln 22g =-，无极大值. ┄┄5（2）()1ln 0f x x '=+=，得1x e=，易知()f x 在1(0,)e 上递减，在1(,)e +∞上递增，结合()f x 的图象，由题意得()0f e e ae bb ==+⎧⎨≥⎩，得0b e ea =-≥，1a ≤. ┄┄9于是21(1)()24e ab ea a e a =-=--+，故max ()4eab =. ┄┄11（3）先证明左边：作差()()ln ln ln ln ln f n f m n n m m n m m mm n m n m---+-=-- (ln ln )ln 1nn n m n m n n m m m-==-- ┄┄12令1n t m=>，(ln ln )ln ln 111n n m t tt n m t t-==---， 令()ln 1h t t t t =-+，'()1ln 1ln h t t t =+-=，当1t >时，'()0h t >，函数()h t 在(1,)+∞上是增函数，所以()ln 1(1)0h t t t t h =-+>=，因此ln 1t t t >-，所以ln 11t t t >-，即()()ln 1f n f m m n m -->-，故()()ln 1f n f m m n m->+-. （或者利用1ln 1t t >-，得ln 111t t>-） ┄┄15 对于右边()()ln ln ln ln ln f n f m n n m m n n m nn n m n m---+-=-- (ln ln )1ln1m n m n n n m m m-==--. 令1n t m =>，(ln ln )m n m n m --ln 11tt =<-， （利用ln 1t t <-，得ln 11tt <-）即()()ln 1f n f m n n m--<-，故()()ln 1f n f m n n m -<+-.综上得()()ln 1ln 1f n f m m n n m-+<<+-. ┄┄17（证出任何一边得4分）19．（本小题满分17分） 【解析】（1）由于{}n x 是等比数列，则212n n n x x x ++=，且12,,0nn n x x x ++≠，0a ≠, ┄┄2 由条件得21n n n x ax ax +=-，所以22111()()n n n n n n x ax ax x ax ax +++-=-，则1n n ax a ax a +-=-，即n x =21n nn x ax ax +=-，得01n a x x a+== ┄┄4 所以101a a +<<，即110a-<<，得1a <-. ┄┄6 （2）①由1a =-知21n n n x x x +=-+，11111=11n n n nn x x x x x +=+--（）， 则11111n n nx x x +-=-， ┄┄8 因为210n n n x x x +-=-<，所以数列{}n x 是递减数列， 于是012n x x ≤=，111121n n nx x x +-=≤-； ┄┄10 又110n n nx x x +=->，所以1,n n x x +同号，那么n x 与0x 同号，即0n x >， 于是111111n n n x x x +-=>-，因此11112n nx x +<-≤. ┄┄12 ②由21nn n x x x +=-，得2011012n i n n i x x x x ++==-=-∑, ┄┄14 因为1112n n x x +-≤，所以10112(1)24n n n x x +≤++=+，则1124n x n +≥+，┄┄16 所以21111122242(2)ni n i n x x n n +=+=-≤-=++∑. ┄┄17。