永嘉二中2014届高三练读快餐2
2020-2021学年浙江省永嘉县第二高级中学高三英语二模试题及参考答案
2020-2021学年浙江省永嘉县第二高级中学高三英语二模试题及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AOne day when I was 5, my mother blamed me for not finishing my rice and I got angry. I wanted to play outside and not to be made to finish eating my old rice. When angrily opening the screen door (纱门) with my foot, I kicked back about a 12-inch part of the lower left hand corner of the new screen door. But I had no regret, for I was happy to be playing in the backyard with my toys.Today, I know if my child had done what I did, I would have blamed my child, and told him about how expensive this new screen door was, and I would have delivered a spanking (打屁股) for it. However, my parents never said a word. They left the corner of the screen door pushed out, creating an opening, in the defense against unwanted insects.For years, every time I saw that corner of the screen, it would constantly make me think about my mistake. For years, I knew that everyone in my family would see that hole and remember who did it. For years, every time I saw a fly buzzing (嗡嗡) in the kitchen, I would wonder if it came in through the hole that I had created with my angry foot. Iwould wonder if my family members were thinking the same thing, silently blaming me every time a flying insect entered our home, making life more terrible for us all. My parents taught me a valuable lesson, one that a spanking or stern (严厉的) words perhapscould not deliver. Their silent punishment for what I had done delivered a hundred stern messages to me. Above all, it has helped me become a more patient person and not burst out so easily.1. When the author damaged the door, his parents _______.A. gave him a spankingB. left the door unrepairedC. told him how expensive it wasD. blamed him for what he had done2. The experience may cause the author _______.A. not to go against his parents’ willB. to have a better control of himselfC. not to make mistakes in the futureD. to hide his anger away from others3. What is the main idea of this text?A. Parents is the best way to solve problems.B. Parents are the best teachers of their children.C. Adults should ignore their children’s bad behavior.D. Silent punishment may have a better effect on educating people.BThe Chinese philosopher (哲学家) Confucius once said, “Time flows away like the water in the river.” This is especially true as the novel coronavirus pneumonia outbreak has affected millions of people in China, andthe whole nation has been working day and night to fight the epidemic.In late January, when an increasing number of people in Wuhan were suspected to be infected, and hospitals didn't have adequate beds for them, two special hospitals—Lei shenshan Hospital and Huo shenshan Hospital were built. These two makeshift (临时的) hospitals were built to treat pneumonia patients infected with the novel coronavirus.HuoshenshanHospitalhas 1,000 beds and covers 33,900 square meters, andLeishenshanHospitalhas 1,500 beds and a total area of about 79,000 square meters. More than 4,000 workers worked 24/7 in two shifts, and nearly 1,000 large-scale pieces of equipment and transport vehicles helped the project on site. The two hospitals were built in an amazingly short time. It only took 10 days for people to build Huo shenshan, and 14 days for Lei shenshan.This certainly wowed many people overseas. “It's incredible that two hospitals with 2,500 beds can be built in a short period. It's just hard to believe,” a foreigner named Stuart told People's Daily. In the meantime, Chinese companies have also taken actions quickly in this battle.“The automobile industry is highly industrialized with strong capabilities in comprehensive manufacturing, purchasing materials, production lines and output of technologies,” Shi Jianhua, deputy secretary-general of China Association of Automobile Manufacturers, told CCTV News. “In this special time, when the nation needs more masks, it's time for us to quickly respond and shoulder the social responsibilities.”Indeed, a fast response is crucial in any crisis. In this special time,Chinacan't afford to waste a second in the fight against the epidemic. After all, time equals life during this crisis.4. Confucius' saying “Time flows away like the water in the river.” is mentioned to ______.A. arouse readers' interest in the passage.B. introduce the subject of the passage.C. present the background information.D. stress the value of time in epidemic.5. What can we learn about Lei shenshan hospital and Huo shenshan hospital?A. They are new hospitals for health care inWuhan.B. They were built in minimal time.C. Over 4,000 workers worked continuously.D. Stuart found them too massive to believe.6. We can infer from Shi Jianhua's words that the automobile industry inChina______.A. had no medical supplies factories before.B. guarantees whoever in need enough masks.C. has capabilities to give timely response.D. has strong abilities in manufacturing.7. What does the passage mainly talk about?A. China fights epidemic against the clock.B. Twospecial hospitals were constructed.C. Chinese firms acted quickly and effectively.D. Time is crucial for people in overcoming crisis.CAt the age of 50, Nina Schoen expects to have a long lifeahead of her, but has thought a lot about death—and why people are so reluctant to talk about it: “It’s going to happen to all of us,” she says, “but it should be a more positive experience than the fear we put into it.”When she first heard about a new end-of-life process that turns the body into compost (堆肥), “I was really moved by the idea,” says Schoen, who became one of the first to reserve a spot with a Seattle-based company called Recompose, the county’s first funeral home to offer human composting.Last year Recompose began transforming bodies to soil, more formally known as natural organic reduction. Before that, end-of-life options in the U.S. were limited to burial or cremation (火化), both of which come with environmental costs—U.S. cremations alone dump 1.7 billion pounds of carbon dioxide into theatmosphere every year.Katrina Spade pioneering the composting movement has spent a decade developing the process in hopes of offering people a greener option for death care. “I wondered, ‘What if we had a choice that helps the planet rather than harms it?’” Spade tells PEOPLE. “To know that the last gesture you’ll make will be gentle and beneficial and it just feels like the right thing to do.”After she had her own two sons, she began to wonder what she might do with her body after death. A friend who knew her interest in the topic reminded her that farmers sometimes compost the body of cows, and thatsparkedan idea for her theory: “If you can compost a cow, you can probably compost a human,” she thought,and she set about designing a facility to do just that.“This is about giving people another choice,” Spade says. “At first, people react with shock—‘You really can do that?’ But so many people today are looking at their impact on the Earth. This is a popular thing because when you die, you can give back to the planet.”8. How do people react when it comes to death according to paragraph 1?A. They are unwilling to comment.B. They can face it without fear.C. They feel it a positive experience.D. They would like to compost their bodies.9. What can we know about the company Recompose?A. Its CEO is Katrina Spade.B. It is located in Seattle.C. It was founded to resist cremation.D. It has spent 10 years composting bodies.10. What does the underlined word “sparked” probably mean?A. Changed.B. Compromised.C. Quitted.D. Inspired.11. What message does the author seem to convey in the text?A. A little things in our life can bring in big outcomes.B. We human beings should do all we can to help the earth.C. Composting is so popular that we should reserve a spot soon.D. We should reject burial because of its harm to environment.DWhen I was 9, we packed up our home in Los Angeles and arrived atHeathrow, London on a gray January morning. Everyone in the family settled quickly into the city except me. Without my beloved beaches and endless blue—sky days, I felt at a loss and out of place. Until I made a discovery.Southbank, at an eastern bend in the Thames, is the center of British skateboarding, where the continuous crashing of skateboards left your head ringing .I loved it. I soon made friends with the local skaters. We spoke our own language. And my favorite: Safe. Safe meant cool. It meant hello. It meant don't worry about it. Once, when trying a certain trick on the beam（横杆）, I fell onto the stones, damaging a nerve in my hand, and Toby came over,helping me up: Safe, man. Safe. A few minutes later, when I landed the trick, my friends beat their boards loud, shouting: “Safe! Safe! Safe!” And that's what mattered—landing tricks, being a good skater.When I was 15, my family moved to Washington. I tried skateboarding there, but the locals were far less welcoming. Within a couple of years, I'd given it up.When I returned to London in 2004, I found myself wandering down to Southbank, spending hours there. I've traveled back several times since, most recently this past spring. The day was cold but clear: tourists and Londoners stopped to watch theskaters. Weaving（穿梭）among the kids who rushed by on their boards, I found my way to the beam. Then a rail—thin teenager, in a baggy white T—shirt, skidded（滑）up to the beam. He sat next to me. He seemed not to notice the man next to him. But soon I caughta few of his glances. “I was a local here 20 years ago,” I told him. Then, slowly, he began to nod his head. “Safe, man. Safe.”“Yeah,” I said. “Safe.”12. What can we learn about the author soon after he moved to London?A. He felt disappointed.B. He gave up his hobby.C. He liked the weather there.D. He had disagreements with his family.13. What do the underlined words “Safe! Safe! Safe!” probably mean?A. Be careful!B. Well done!C. No way!D. Don't worry!14. Why did the author like to spend time in Southbank when he returned to London?A. To join the skateboarding.B. To make new friends.C. To learn more tricks.D. To relive his childhood days15. What message does the author seem to convey in the text?A. Children should learn a second language.B. Sport is necessary for children's health.C. Children need a sense of belongingD. Seeing the world is a must for children.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
高中英语真题-2014年高三年级第二次统一练习英语试卷
高中英语真题:2014年高三年级第二次统一练习英语试卷本试卷共10页，共150分。
考试时长120分钟。
考生务必将答案答在答题卡上，在试卷上作答无效。
考试结束后，将答题卡交回。
第一部分：听力理解（共三节，30分）第一节（共5小题；每小题1.5分，共7.5分）听下面5段对话。
每段对话后有一道小题，从每题所给的A、B、C三个选项中选出最佳选项。
听完每段对话后，你将有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话你将听一遍。
1. What language can the woman speak?A. French.B. Japanese.C. Chinese.2. What is the man going to eat for dinner?A. Chicken.B. Fish.C. Pizza.3. Why is the man going to the post office?A. To see his friend.B. To post some letters.C. To buy some stamps.4. Where are the two speakers?A. In the bank.B. In the classroom.C. In the supermarket.5. What will the man do on Saturday?A. Go boating.B. Play football.C. Play tennis.第二节（共10小题；每小题1.5分，共15分）听下面4段对话或独白。
每段对话或独白后有几道小题，从每题所给的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5秒钟的时间阅读每小题。
听完后，每小题将给出5秒钟的作答时间。
每段对话或独白你将听两遍。
听第6段材料，回答第6至7题。
6. Where was the woman born?A. In .B. In .C. In .7. How long will the woman stay in ?A. Four years.B. Ten years.C. Twelve years.听第7段材料，回答第8至9题。
永嘉二中高三英语限时阅读训练十演示教学
永嘉二中高三英语限时阅读训练十建议用时：32分钟A 07 安徽卷As societies develop, their members start to see things not so much according to what they need, but according to what they want. When people have enough money, these wants become demands.Now, it' s important for the managers in a company to understand what their customers want if they are going to develop effective marketing strategies （策略）. There are various ways of doing this. One way at supermarkets, for example, is to interview customers while they're doing their shopping. They can be asked what they prefer to buy and then the results of the research can be studied．This provides information on which to base future marketing strategies. It' s also quite normal for top managers from department stores to spend a day or two each month visiting stores and mixing freely with the public, as if they were ordinary customers, to get an idea of how customers act.Another way to get information from customers is to give them something. For example, some fast food restaurants give away tickets in magazines or on the street that permit customers to get part of their meal for nothing. As well as being a good way of attracting customers into the restaurants to spend their money, it also allows the managers to get a feel for where to attract customers and which age-groups to attract.Another strategy used at some well-known parks such as Disneyland is for top managers to spend at least one day in their work, touting the park dressed as Mickey Mouse or something like that. This provides them with a perfect chance to examine the scene and watch the customers without being noticed.1．The text is designed for _______A．mangers B．salesmen C．researchers D．customers 2．Which of the following can help managers get useful information?A．Visiting customers themselves.B．Giving customers free food on the street.C．Visiting parks as ordinary customers.D．Asking customers questions at supermarkets.3．What does the word "this" underlined in the last sentence refer to?A．Visiting Disneyland．B．Wearing attractive clothes.C．Acting Mickey Mouse. D．Dressing up and walking around.4．The main idea of the text is _________.A．how to do market research B．how to develop marketing strategiesC．how to find out customers' social needsD．how to encourage customers to spend more moneyA．opposes the reading of original classicsB．is embarrassed for cutting down classicsC．thinks cut-down classics have a bright futureD．is cautions in its decision to cut down classics6．In Mr. Edwards’opinion, Orion Group is shortening classics to _________.A．make them easier to read B．meet a large demand in the marketC．increase the sales of literary books D．compete with their original versions 7．By describing the shortened classics as "a breath of fresh air", Ms. Weir ________.A．speaks highly of the cut-down classics B．shows her love for original classics C．feels guilty of not reading the classics D．disapprove of shortening the classics 8．Mr. Crockatt seems to imply that _________.A．reading the classic works is a confusing attemptB．shortening the classics does harm to the originalC．publishing the cut-down classics is a difficult jobD．editing the classic works satisfies children’s needsC 07江西卷Brian Walker chews pens. He bites them so hard that his boss has warned him to stop or buy his own. Kate’s weakness is more acceptable-she is unable to walk past a cake shop without overeating. Sophia Cartier finds her cigarette habit a headache, while Alice’s thumb-sucking drives her boy friend crazy. Four people with very different habits, but they all share a common problem anxiety disorder or, in serious cases. Obsessive Compulsive Disorder （OCD）.From nail-biting to too much hand-washing, overeating and internet addiction,OCD is widespread in almost every workplace and countless home. “It is a relatively common form of anxiety,”says Dr.Mootee. “The main feature of OCD is the repetition of unwanted obsessive（过度的）thoughts such as worries that doors are left unlocked , gas or electrical appliances are left on.”In order to fight against the addiction and disorders caused by these obsessions , an OCD sufferer performs some form of repetitive act such as hand-washing , checking door locks and gas or electrical appliances.Dr. Mootee says that repetitive washing, particularly of the hands, is the most common type of OCD．She has treated many patients who wash their hands up to 30 times a day. The technique Mootee uses to treat people with OCD is called cognitive-behavioral therapy（认知行为疗法）.“It is based on the general idea that people have the ability to change the way they think and behave,”says Mootee.But when does a habit become a problem?“It’s personal,”says Mootee.“Everyone has something unusual, but if you can’t put up with it, then it’s a problem and you need to do something to change it.”Mootee says many people resist for treatment because they fear they are“crazy”. But as people become more knowledgeable about these problems they will go and get help. The only way to core is to conquer.9．If a person suffers from OCD, be is likely to keep doing any of the following EXCEPT .A．chewing pens B．hurting himselfC．sucking fingers D．biting nails10．According to the passage, a person suffering from OCD .A．reduces his/her anxiety by taking drugsB．gets into unwanted habits to relieve stressC．has unwanted thoughts about habitsD．has unwanted thoughts because of illness11．Dr. Mootee’s treating technique is based on the idea that .A．everyone has something differentB．people can put up with their problemsC．people can change their way of thinking and actionD．people tend to repeat their obsessive actions12．By saying “The only way to cure is to conquer.”Dr. Mootee suggests that an OCD sufferer .A．has to be an extraordinary person B．must cure his illness by himselfC．must overcome many physical illnesses D．should have a right attitude towards the problemD 2012届温州高三八校联考（c）Starry NightHave you ever seen a real night sky that looks like Van Gogh’s Starry Night? I hope not! So, why would an artist paint the sky this way? Perhaps I can answer that with another question. When you’re happy, why do you sing instead of speaking? Or when you’re in love, why do you speak of roses and honey? When we do these things, we, too are artists. We’re using something that goes beyond a mere scientific description in order to communicate our feelings more powerfully than straightforward words can. So consider for a moment that Van Gogh might not have been hallucinating (产生幻觉的) on the night he painted this. Maybe he felt something so powerful that he had to go beyond the familiar to express it.I hope I’m reminding you of something you already know as I describe the experience of being outside at night under a crystal clear sky that makes everything seem clean and refreshing. So you look up. And suddenly you see the sky that you’ve seldom seen before. It’s not just the same old dark night sky tonight. Instead, the blackness is a deep, rich blue that is more bottomless than any ocean. The stars are not spots of light but brilliant, magical diamonds that dance like tiny angels. In just this special moment, the sky is somehow alive, and it seems to speak to you silently about the meaning of infinity(无限).Now look at the painting again. Can you see something of what makes this such a famous and well-loved image? But there’s more here than that. Van Gogh painted this while he was quite struck down by a mental disease. It is natural to imagine that he frequently battled the fear that he would never escape his prison to true freedom. It is natural for us to imagine this because each of us has faced our own personal prison, whether it be disease, the loss of a loved one, serious financial problems … In such moments it is tempting to give up to despair and collapse in hopelessness.Looking at this painting, I imagine Van Gogh in just such a moment of despair, when he is struck by the memory of one of those amazing night skies. He recalls the sense that he is not alone, that there is a living, infinite world with rich colorful creatures and scenes all around.And so the sky flows across the canvas (画布) full of vitality (活力) and power. The stars don’t just sparkle; they explode. Looking closer, we notice that the earth itself seems to respond to the movement in the sky, forming its own living waves in the mountain and rolling trees. In the sleepy village, the windows of the houses glow (发光) with the same light that brightens the universe. The giant trees at the left seem to capture the joy by stretching upwards toward the sky.What a tremendous message of hope there is in this masterpiece! Even if our troubles persist, the world around us assures us that life is worth living. That’s what the angels sing about. Doesn’t it make you want to sing, too?13. Looking at the painting Starry Night, we can see all the following except________.A. The singing angelsB. the giant treesC. the sleepy villageD. the sparkling stars14. Van Gogh does NOT describe a feeling of _______ through the Starry Night.A. happinessB. vitalityC. powerD. despair15. The underlined word “prison” in the 3rd paragraph probably means _______.A. trouble in one’s lifeB. mental illnessC. control from the authorityD. a place where criminals are kept16. What is the main purpose of this passage?A. To explain how Van Gogh painted the Starry Night.B. To tell us how to appreciate the Starry Night.C. To prove Van Gogh was in a hallucinating state of mind while painting the picture.D. To show us the beauty of the sky on a starry night.永嘉二中高三英语限时阅读训练十建议用时：32分钟班级__________ 姓名____________ 座号____________1．A2．D3．D4．A 5．C6．A7．A8．B 9．B10．B11．C12．D 13．A 14．D15．A16．B。
浙江省永嘉二中高二英语第二学期返校考试试卷(无答案)
永嘉二中2014学年第二学期返校考试高二英语试卷〖温馨提示〗1.本卷满分120分，共8页。
考试用时100分钟，请合理分配考试时间。
2.所有答案均需在答题卷或答题卡上作答，答在其他地方无效。
第I卷（选择题部分, 共90分）第一部分听力测试（共两节，满分20分）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. Who is coming for dinner?A. Mark.B. John.C. Tracy.2. What will the man do next?A. Leave right away.B. Stay for coffee.C. Take a piano lesson.3. What does the woman want to watch？A. News .B. Sports World.C. Movie.4. What hobby does the man have?A. Reading and watching TV.B. Taking photosC. Collecting stamps.5. Which description of the following is RIGHT？A. The woman is buying films.B. She wants all her films enlarged(放大).C. She only wants five enlarged.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5秒钟的时间阅读各个小题，听完后，各小题将给出5秒钟的作答时间。
永嘉二中2014届高三练读快餐10
永嘉二中2014届高三练读快餐（十）〖晚餐一练〗1．下列各组词语中加点字的读音，全都相同的一组是（）A．纤．绳掀．起仙．山琼楼鲜．为人知 B．剿．除姣．好脚．踏实地矫．枉过正C．推诿．猬．琐唯．唯诺诺委．曲求全 D．颤．栗忏．悔胁肩谄．笑馋．涎欲滴2．下列句子中，没有错别字的一项是()A．慧星收讫挺而走险振聋发馈B．汇编狙击急公好义彪炳春秋C．踌躇逼仄既往不纠纵横捭阖D．潦倒棉密励精图治敝帚自珍3．(原创题)依次填入横线处的词语，恰当的一组是()①1月20日，信阳市新县法院调解一起房屋所有权纠纷案，胡某自愿________起诉，一场令胡某、农行、吴某三方费尽心思交涉三年的“拉锯战”终于画上了句号。
②也就是说，我国彩电使用一年所________的电力，相当于4个葛洲坝发电站所发的电的总和。
③市人大常委会秘书处及时________各区县分会场代表的质询意见，分门别类送交各主管委员会负责人。
A．撤回消耗收集B．撤消消耗搜集C．撤回消费搜集D．撤消消费收集4．(原创题)下列各句中，加点的成语使用不恰当的一句是()A．听到群众的喝令声，歹徒们立即作鸟兽散．．．．，其中一名歹徒莫某慌不择路，跳到湖里，另外几名则趁黑夜潜逃。
B．有人开玩笑说：“犹太金融资本家在豪宅客厅里打个喷嚏，世界上不少银行都将连锁感冒。
”这可不是骇人听闻．．．．，他们在全球政治经济领域的作用确实非常之大。
C．健全国内的反腐倡廉机制是有效阻止贪官外逃的治本之策，而一味希图靠外力拿办贪官则是舍本．．逐末．．，断不可取。
D．又是十年过去了，看看现在，外面的车型真是让人眼花缭乱．．．．：从适合代步的小型车到性能优越的suv，从遥远的德系、日系车到我们国家自主研发的品牌，大街上跑的车数不胜数。
5．下列句子中，没有语病的一句是()A．别开生面的元宵联谊会，使秦山核电站三期工程的20多名外籍专家歆享了中国“上元节”的喜庆与祥和。
B．鉴于这些工作人员长期负责某一系统的财务审计，形成了一种稳定的施审与受审关系，难免违规交往。
浙江省永嘉县第二高级中学2014-2015学年高二下学期返校考试政治试卷(无答案).pdf
们根据时代的发展，一改沿袭20多年的运动型校服，设计出新颖时尚、青春靓丽的英伦校服，使不少学生对校服的态度
从“不想穿”变成“想要穿”。学生态度的变化说明
①意识是对客观存在如实的正确反映 ②世界上的事物都处在变化发展之中
③矛盾双方在一定条件下会发生转化 ④真理是客观与主观的具体历史统一
①②
④做到知行合一，树立正确的实践观
A.①②
B．①③
C．②④
D.③④
党和政府高度重视改革的顶层设计和总体规划，大力推进经济体制改革，积极稳妥地推进政治体制改革，为科学发
展提供有力保障。其哲学依据是
①生产力要适应生产关系的状况 ②上层建筑能促进生产力的发展
③上层建筑对经济基础有反作用 ④生产关系对生产力有反作用
A．③④ B．②③
C．②④
D．①④
27．漫画《结论》（作者：王征）
给我们的哲学启示是
要积极亲身参加实践
要用联系的观点看问题
要坚持一切从实际出发
要坚持具体问题具体分析
A．B．
C．D．
①坚定理想信念，树立正确的价值观
②注重修身养德，树立正确的群众观
③办事光明磊落，树立正确的物质观
高二政治答题卷
31．（1）结合材料一，分析C市治理雾霾是如何体现规律普遍性和客观性的原理及要求的？（6分）
（2）结合材料二，运用“坚持整体与部分的统一”的知识，说明“五水共治”治污先行，也要齐抓共治。简要说
明材料中国务院的要求是怎样做到用对立统一的观点看问题的？（8分）
学校
班级
姓名
试场
考号
※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※
2014-2015学年浙江省温州市永嘉二中高二(下)返校考试物理试卷
2014-2015学年浙江省温州市永嘉二中高二（下）返校考试物理试卷学校:___________姓名：___________班级：___________考号：___________一、单选题(本大题共11小题，共34.0分)1.关于点电荷的下列说法中，正确的是（）A.只有体积很小的带电体才能看成点电荷B.体积很大的带电体一定不能看成点电荷C.当两个带电体的大小及形状对它们之间相互作用力的影响可忽略时，两个带电体可看成点电荷D.一切带电体都可以看成点电荷【答案】C【解析】解：体积很小或很大的带电体在一定的条件下都可以看成点电荷，只要满足如下条件：当两个带电体的大小及形状对它们之间相互作用力的影响可忽略时，其大小和形状可忽略不计，可以看成点电荷处理．故选C当两个带电体的大小及形状对它们之间相互作用力的影响可忽略时，两个带电体才可看成点电荷．体积很小或很大的带电体在一定的条件下都可以看成点电荷．本题考查对点电荷的理解能力．点电荷是理解化的物理模型，与力学中质点模型类似．2.孤立的A、B两点电荷相距R，A的电量是B的a倍，A的质量是B的b倍，已知A受到的静电力大小为F，则B受到的静电力大小为（）A.FB.（a+b）FC.（a-b）FD.ab F【答案】A【解析】解：A、B两电荷之间的静电力是作用力与反作用力关系，根据牛顿第三定律可知，B对A的静电力与A对B的静电力大小相等，则B受到的静电力大小为F．故选AA、B两电荷之间的静电力遵守牛顿第三定律，大小相等，与电量、质量无关．本题实际上是牛顿第三定律的具体应用，抓住物体间的作用力与反作用力总是大小相等，方向相反，与两物体的质量、电量无关．3.A和B两点电势差U AB=-40V，将带电量为q=-4×10-8C的点电荷先后放在A点和B 点，则（）A.A点时电势大B.放在B点时电势能大C.电荷从A点到B点，电场力做功-1.6×10-6JD.电荷从A点到B点，电势能将减少1.6×10-6J【答案】D【解析】解：A、由于U AB=φA-φB＜0，则φA＜φB．即A点的电势小，故A错误．BCD、电荷从A点到B点，电场力做功功W AB=q U AB=-4×10-8×（-40）J=1.6×10-6J，由于电场力做正功，所以电势能将减少1.6×10-6J，可知电荷放在A点时电势能大，故BC错误，D正确．故选：D．电势差U AB=φA-φB．电场力做功W AB=q U AB，代入求出电场力做功，即可分析电势能的变化．本题考查对电势差、电势能与电势的关系理解能力和电场力做功的计算能力．公式W AB=q U AB往往要代入符号计算．4.如图所示，电场中有A、B两点，它们的场强分别为E A、E B，则以下判断正确的是（）A.E A=E BB.E A＞E BC.E A、E B的方向相同D.E A、E B的方向不同【答案】D【解析】解：由图可知，B点的电场线密，所以B点的电场强度比A高．由电场线上某点的切线方向表示电场强度在该点的方向，可得E A、E B的方向不同．故选：D电场线的疏密表示电场强度的强弱，某点的切线方向表示电场强度在该点的方向．虽电场线不是实际存在的，但可形象描述电场的大小与方向的分布情况．当正电荷在电场中其电场力的方向与电场强度方向相同，若是负电荷则电场力方向与电场强度方向相反．5.如图所示，实线表示匀强电场的电场线．一个带负电荷的粒子以某一速度射入匀强电场，只在电场力作用下，运动的轨迹如图中的虚线所示，a、b为轨迹上的两点．若a点电势为ϕa，b点电势为ϕb，则（）A.场强方向一定向左，且电势ϕa＜ϕbB.场强方向一定向左，且电势ϕa＞ϕbC.场强方向一定向右，且电势ϕa＞ϕbD.场强方向一定向右，且电势ϕa＜ϕb【答案】A【解析】解：由曲线运动条件可知合力偏向曲线内侧，电场强度方向应该是电场线上一点的切线方向，所以电荷所受电场力向右．由于是负电荷的粒子，所以场强方向一定向左．沿着电场线的方向电势降低的．作出a、b点的等势点（要同在一根电场线），接着沿着电场线可判定a点的电势小于b点．故选A．粒子在电场力作用下，由运动与力关系可知，根据轨迹的弯曲程度，判断出合力（电场力）的方向，再根据电场力方向和电荷性质判断场强方向．沿着电场线的方向电势降低的．因此可作出M、N点的等势点（要同在一根电场线），接着沿着电场线去判定电场线虽然不存在，但可形象来描述电场的分布．对于本题关键是根据运动轨迹来判定电场力方向，由曲线运动条件可知合力偏向曲线内侧．6.在1min内通过阻值为5Ω的导体横截面的电量为480C，那么加在该导体两端的电压是（）A.20 VB.40 VC.120 VD.1200 V【答案】B【解析】解：由I=可知，导体中的电流I=A=8A；则导体两端的电压U=IR=8×5V=40V，故B正确，ACD错误；故选：B．由电流的定义可求得电流，再由欧姆定律可求得导体两端的电压．本题考查了欧姆定律和电流定义式的简单应用，是一道基础题目．7.节日采灯是由若干只小灯泡串连接到照明电路上的，现有下列四组灯泡供选用，较为合适的是（）A.10只“12V，10W”B.10只“220V，15W”C.15只“15V，3WD.30只“9V，2W”【答案】C【解析】解：A、照明电压为220V，10只“12V，10W”串联连接到照明电路上时，每个灯泡的电压为22V，超过灯泡的额定电压，灯泡会被烧坏．故A错误．B、照明电压为220V，10只“220V，15W”串联连接到照明电路上时，每个灯泡的电压为22V，远小于灯泡的额定电压，灯泡不亮．故B错误．C、照明电压为220V，15只“15V，3W”串联连接到照明电路上时，每个灯泡的电压为=14.7V，接近灯泡的额定电压，比较合适．故C正确．D、照明电压为220V，30只“9V，2W”串联连接到照明电路上时，每个灯泡的电压为7.3V，低于灯泡的额定电压，灯泡不能正常发光．故D错误．故选C照明电压为220V，根据串联电路的总电压等于各个电阻电压之和，求出每个灯泡的电压，再分析是否合适．本题是简单的串联电路，关键根据串联电路的基本特点：总电压等于各个电阻电压之和，分析灯泡的电压．8.有一只小型直流电动机和一只白炽灯，它们的铭牌上都标有“220V40W”的字样，现将它们并联接在电源电压为220V直流电路中，当电路接通后（）A.在相同的时间内发出的热量相同B.在相同的时间内消耗的电能相同C.对它们来说IU=I2R都是成立的D.对电动机来说IU=成立【答案】B【解析】解：A、根据P=UI知，消耗的电能都为40W．电动机耗的电能转化为内能和机械能；白炽灯消耗的电能全部转化为内能．故A错误，B正确．C、对于电动机有：UI=I2R+P机．且．故C、D错误．故选B．根据P=UI比较消耗的电能，对于电动机而言，消耗的电能转化为内能和机械能；对于白炽灯而言，消耗的电能全部转化为内能．解决本题的关键知道输入功率与输出功率以及内部消耗的功率的关系．9.一个带负电的橡胶圆盘处在竖直面内，可以绕过其圆心的水平轴高速旋转，当它不转动时，放在它左侧水平轴上的小磁针静止时的指向，如图所示，从左往右看，当橡胶圆盘逆时针高速旋转时，小磁针N极指向（）A.不偏转B.在纸面内向左偏C.在纸面内向右偏D.向纸面内偏【答案】C【解析】解：带负电金属环，如图所示的旋转．则金属环的电流方向与旋转方向相反．再由右手螺旋定则可知磁极的方向：左端S极，右端N极．因此小磁针N极沿轴线向右．故C 正确，ABD错误；故选：C．带负电旋转，则可知电流方向，再由右手螺旋定则可知磁极的方向，再根据磁极间的相互作用可知小磁针的偏转方向．本题考查右手螺旋定则及磁极间的相互作用，要求能熟练准确的应用右手螺旋定则．注意电流的方向与负电荷的运动方向相反．10.如图所示，一根有质量的金属棒MN，两端用细软导线连接后悬挂于a、b两点．棒的中部处于方向垂直纸面向里的匀强磁场中，棒中通有电流，方向从M流向N，此时悬线上有拉力，为了使拉力等于零，可（）A.适当减小磁感应强度B.使磁场反向C.适当增大电流强度D.使电流反向【答案】C【解析】解：棒的中部处于方向垂直纸面向里的匀强磁场中，棒中通有电流，方向从M流向N，根据左手定则可得，安培力的方向竖直向上，由于此时悬线上有拉力，为了使拉力等于零，则安培力必须增加．所以适当增加电流强度，或增大磁场；而使电流或磁场反向时，只能使安培力反向，拉力将一定增大；故只有C正确，ABD 错误；故选：C．通电导线在磁场中的受到安培力作用，由公式F=BIL求出安培力大小，由左手定则来确定安培力的方向．本题考查安培力在共点力平衡中的应用；要学会区分左手定则与右手定则，前者是判定安培力的方向，而后者是判定感应电流的方向．11.如图所示，四个电场线图，一正电荷在电场中由P到Q做加速运动且加速度越来越大，那么它是在哪个图示电场中运动．（）A. B. C. D.【答案】C【解析】解：加速度越来越大，故受到的电场力越来越大A、由图可知粒子由左向右运动，电场为匀强电场，故电场力不变，故A错误；B、粒子由左向右运动时电场线越来越疏，故电荷受力越来越小，故B错误；C、粒子受力向右，电场线越来越密，故场强越来越大，故粒子受到的电场力越来越大，故C正确；D、粒子的运动同B，故D错误；故选：C．正电荷受力沿电场线方向，则由图可知粒子的运动方向；电场线的疏密表示电场的强弱，电场线越密的地方电场越强，电场线越稀疏则电场越弱．为了形象地描述电场的性质，我们引入了电场线，箭头的指向表示电场强度的方向，电场线的疏密能定性地描述电场的强弱．二、多选题(本大题共5小题，共20.0分)12.一带电粒子在正电荷形成的电场中，运动轨迹如图所示的abcd曲线，下列判断正确的是（）A.粒子带正电B.粒子通过a点时的速度比通过b点时大C.粒子在a点受到的电场力比b点小D.粒子在a点时的电势能比b点大【答案】ABC【解析】解：A、轨迹弯曲的方向大致指向合力的方向，知电场力背离正电荷方向，所以该粒子带正电．故A正确．B、从a到b，电场力做负功，根据动能定理，动能减小，a点动能大于b点动能，则a 点速度大于b点的速度．故B正确．C、b点的电场线比a点电场线密，所以b点的电场强度大于a点的电场强度，所以粒子在a点的电场力比b点小．故C正确．D、从a到b，电场力做负功，电势能增加．所以a点的电势能小于b点的电势能．故D 错误．故选ABC．根据轨迹弯曲方向得出电场力的方向，从而确定带电粒子的电性．根据动能定理比较a 点、b点的速度大小；根据电场线的疏密比较电场力的大小；根据电场力做功比较电势能的大小．解决本题的关键知道电场线的疏密表示电场的强弱，电场力做正功，电势能减小，电场力做负功，电势能增加．13.如图所示有三个质量相等，分别带有正电、负电和不带电的微粒，从极板左侧中央以相同的水平初速度v先后垂直场强射入，分别落到极板A、B、C处，如图所示，则下列说法正确的有（）A.粒子A带正电，B不带电，C带负电B.三个粒子在电场中运动时间相等C.三个粒子在电场中运动的加速度a A＜a B＜a CD.三个粒子到达极板时的动能E KA＜E KB＜E KC【答案】ACD【解析】解：ABC、三个微粒的初速度相等，水平位移x A＞x B＞x C，根据水平方向上做匀速直线运动，所以由公式x=vt得t A＞t B＞t C．三个微粒在竖直方向上的位移相等，根据y=at2，知a A＜a B＜a C．从而得知B仅受重力，A所受的电场力向上，C所受的电场力向下，所以B不带电，A带正电，C带负电．故AC正确，B错误．D、根据动能定理，三个微粒重力做功相等，A电场力做负功，C电场力做正功，所以C 的动能变化量最大，A动能变化量最小，初动能相等，所以三个微粒到达极板时的动能E k A＜E k B＜E kc．故D正确．故选：ACD．三个质量相等的微粒在电场中都做类平抛运动，根据水平位移的大小比较出运动的时间，根据竖直位移相等，比较出粒子在竖直方向上的加速度，从而判断出电荷的电性．根据动能定理比较三个微粒到达极板时的动能．解决本题的关键知道微粒做类平抛运动，在水平方向上做匀速直线运动，在竖直方向上做匀加速直线运动，关键找到突破口，本题从初速度相等，水平位移不等入手分析．14.电动机的电枢阻值为R，电动机正常工作时，两端的电压为U，通过的电流为I，工作的时间为t，则下列说法中正确的是（）A.电动机消耗的电能为UI tB.电动机消耗的电能为I2R tC.电动机线圈产生的热量为I2R tD.电动机线圈产生的热量为【答案】AC【解析】解：A、电动机正常工作时，两端的电压为U，通过的电流为I，工作的时间为t，所以电动机消耗的电能为UI t，所以A正确，B错误；C、电动机为非纯电阻电路线圈产生的热量为I2R t，不能用来计算，所以C正确，D错误；故选AC．在计算电功率的公式中，总功率用P=IU来计算，发热的功率用P=I2R来计算，如果是计算纯电阻的功率，这两个公式的计算结果是一样的，但对于电动机等非纯电阻，第一个计算的是总功率，第二个只是计算发热的功率，这两个的计算结果是不一样的．对于电功率的计算，一定要分析清楚是不是纯电阻电路，对于非纯电阻电路，总功率和发热功率的计算公式是不一样的．15.如图所示，一带负电的质点在固定的正点电荷的作用下绕该正电荷做匀速圆周运动，周期为T0，轨道平面位于纸面内，质点绕顺时针方向运动，现加一垂直于纸面的匀强磁场，已知轨道半径并不因此而改变，则（）A.若磁场方向垂直于纸面向里，质点运动周期将大于T0B.若磁场方向垂直于纸面向里，质点运动周期将小于T0C.若磁场方向垂直于纸面向外，质点运动周期将大于T0D.若磁场方向垂直于纸面向外，质点运动周期将小于T0【答案】AD【解析】解：在未加磁场时，根据牛顿第二定律和库仑定律得：=在加磁场时，根据牛顿第二定律、库仑定律和洛仑兹力公式（左手定则）得若磁场指向纸里：，T1＞T0若磁场指向纸外：，T2＜T0，故选：AD负电在正电的库仑引力作用下做匀速圆周运动，当外加一垂直平面的匀强磁场时，负电质点还会受到洛伦兹力作用，轨道半径因不变，所以会导致周期发生变化．当磁场方向指向纸里时，负电荷受到的洛伦兹力与库仑力方向相反，所以周期变大；当磁场方向指向纸外时，负电荷受到的洛伦兹力与库仑力方向相同，所周期变小．没有磁场时库仑引力提供向心力做匀速圆周运动，当有磁场时负电荷仍做圆周运动，不过导致提供的向心力可能变大也可能变小，所以会使得周期发生变化．16.图中为一“滤速器”装置示意图．a、b为水平放置的平行金属板，一束具有各种不同速率的电子沿水平方向经小孔O进入a、b两板之间．为了选取具有某种特定速率的电子，可在a、b间加上电压，并沿垂直于纸面的方向加一匀强磁场，使所选电子仍能够沿水平直线OO′运动，由O′射出．不计重力作用．可能达到上述目的办法是（）A.使a板电势高于b板，磁场方向垂直纸面向里B.使a板电势低于b板，磁场方向垂直纸面向里C.使a板电势高于b板，磁场方向垂直纸面向外D.使a板电势低于b板，磁场方向垂直纸面向外【答案】AD【解析】解：A、a板电势高于b板，电子所受电场力方向向上．磁场方向垂直纸面向里，根据左手定则判断出来，洛伦兹力方向向下，两力可以平衡，符合题意．故A正确．B、a板电势低于b板，电子所受电场力方向向下．磁场方向垂直纸面向里，根据左手定则判断出来，洛伦兹力方向向下，两力不可能平衡，不符合题意．故B错误．C、使a板电势高于b板，电子所受电场力方向向上．磁场方向垂直纸面向外，根据左手定则判断出来，洛伦兹力方向向上，两力不可能平衡，不符合题意．故C错误．D、使a板电势低于b板，电子所受电场力方向向下．磁场方向垂直纸面向外，根据左手定则判断出来，洛伦兹力方向向上，两力可能平衡，符合题意．故D正确．故选AD．电子沿水平直线OO'运动，做匀速直线运动，电场力与洛伦兹力平衡，根据左手定则判断洛伦兹力方向，将各项逐一代入，选择符合题意的选项．本题是粒子速度选择器模型，关键是分析粒子的受力情况，难点是判断洛伦力方向．三、填空题(本大题共3小题，共14.0分)17.两个完全相同的带电小球，它们的电荷量之比为7：1，在一定距离时，相互作用力为F1，如果把它们互相接触后，再放在各自原来的位置上，此时作用力变为F2，则F1和F2之比为______ 或______ ．【答案】7：9；7：16【解析】解：由库仑定律可得：F=k，带电量之比是7：1，当它们相距r时作用力大小为F1=k当两相同金属小球带异种电荷时，两者相互接触后再放回原来的位置上，它们的电荷量都变为3q，当它们相距r时作用力大小为F2=k，所以库仑力是原来的7：9．当两相同金属小球带同种电荷时，两者相互接触后再放回原来的位置上，它们的电荷量变为4q：4q，当它们相距r时作用力大小为F2′=k，所以库仑力是原来的7：16．故答案为：7：9，7：16．两电荷间存在库仑力，其大小可由库仑定律求出．当两电荷相互接触后再放回原处，电荷量可能相互中和后平分，也可能相互叠加再平分，所以库仑力的变化是由电荷量变化导致的．本题考查库仑定律的同时，利用了控制变量法．当控制距离不变时，去改变电荷量，从而确定库仑力的变化．当然也可控制电荷量不变，去改变间距，从而得出库仑力的变化．18.如图所示，A、B、C为负点电荷电场中一条电场线上的三点，则A、B这两点的场强大小关系是E A ______ E B，这两点电势高低的关系是φA ______ φB，负电荷置于C点和B点时具有的电势能的大小关系是E PC______ E PB．（填“大于”、“小于”或“等于”）【答案】小于；大于；小于【解析】解：若该电场是负的点电荷产生的，根据电场线的特点可知，电场线的方向指向负电荷处，而且越靠近负电荷处的电场线越密，场强越大，则有：E A＜E C＜E B．则A，B错误根据顺着电场线，电势降低判断可知，三点电势的关系总是：φA＞φC＞φB，负电荷在电势高处的电势能小，所以置于C点和B点时具有的电势能的大小关系是E PC ＜E PB．故答案为：小于，大于，小于根据顺着电场线，电势降低判断电势的高低．根据电场线的方向指向负电荷处，再结合电场线的疏密判断场强的大小．本题考查对电场线两个物理意义的理解和应用能力．电场线的方向反映了电势的高低，电场线的疏密反映电场的强弱．19.如图所示，将一个电流表G和另一个电阻连接可以改装成电压表或电流表，则甲图对应的是______ （电压表或电流表），要使它的量程减小，应使R1 ______ ．（填“增大”或“减小”）．【答案】电流表；增大【解析】解：甲图中电阻起分流作用；故为大量程的电流表；R1起分流作用；在最大量程时，表头G中电流不变，电压不变；故要使量程减小，需减小R1的分流，即增大R1的电阻．故答案为：电流表；增大．甲图为G表头并联一分流电阻改装成一电流表，分流电阻越小，分流越大，量程越大．本题考查电表的改装原理，明确分压与电阻成正比，电阻大分压大；明确分流与电阻成反比，电阻大，分流小，反之电阻小则分流大．四、实验题探究题(本大题共1小题，共8.0分)20.某同学要测量一节旧电池的电动势和内阻，实验器材仅有一个电流表、一个电阻箱、一个开关和导线若干，该同学按如实图1所示电路进行实验，测得的数据如表所示．（1）若利用图象确定电池的电动势和内阻，则应作______ （填“R-I”或“R-”）图象；（2）利用测得的数据在实图2中画出适当的图象；（3）由图象可知，该电池的电动势E= ______ V，内阻r= ______ Ω（保留到小数点后一位）【答案】R-；5.6；0.5【解析】解：（1）由I=得，R=E•-r，R-I图象是曲线，不便于进行数据分析，R-图象是直线，便于进行数据分析，误差较小，故应作R-图象．（2）根据描点法作出图象如图所示．（3）根据闭合电路的欧姆定律：E=I（R外+r）①，要使图线尽可能是直线，且斜率可以用来表示电动势E，即需要②，②与①比较可以看出△x应该是；直线与R轴的交点是（R0+r），从图上读出为1.6Ω，故：r=1.6-R0=0.6Ω，代入①式，可求得：E=5.6V故答案为：（1）R-；（2）如图；（3）5.6；0.6（1）根据闭合电路的欧姆定律：E=I（R+r），要使图线尽可能是直线，应使用作为横坐标．外（2）根据描点法得出对应的伏安特性曲线；（3）根据闭合电路欧姆定律得出对应的表达式，结合图象可求得电动势和内电阻．本题考查闭合电路欧姆定律的数据处理，注意掌握描点作图的方法；正确理解实验的原理是解题的关键．五、计算题(本大题共3小题，共24.0分)21.如图为直流电动机提升重物的装置，重物的重量M=100kg，电源电动势E=220V，不计电源内阻及各处摩擦，当电动机以ν=0.90m/s的恒定速度向上提升重物时，电路中的电流I=5.0A，求：（1）电动机消耗的总功率？（2）提升重物消耗的功率？（3）电动机线圈的电阻？【答案】解：（1）电路中的电流为5A．则电源的总功率为：P总=EI=110×5W=550W；因不计电源内阻，故电动机消耗的功率即为电源输出功率550W；（2）重物被提升的功率为：P1=F v=G v=500×0.9W=450W（3）线圈电阻消耗的功率为：P r=P总-P1=550-450W=100W由殴姆定律可得：r=答：（1）电动机消耗的总功率为550W；（2）提升重物消耗的功率为450W；（3）电动机线圈的电阻为4Ω【解析】当电动机以恒定速度向上提升重物时，同时电动机因线圈电阻消耗功率．则电源产生的总功率等于提升物体消耗的功率加上线圈电阻消耗的功率本题考查电功率问题，要注意明确能量守恒定律的应用；由能量守恒定律可知，提升功率与电阻发热功率之和为电源的总功率．22.如图所示，两块水平放置、相距为d的长金属板接在电压可调的电源上．两板之间的右侧区域存在方向垂直纸面向里的匀强磁场．将喷墨打印机的喷口靠近上板下表面，从喷口连续不断喷出质量均为m、水平速度均为v0、带相等电荷量的墨滴．调节电源电压至U，墨滴在电场区域恰能沿水平向右做匀速直线运动；进入电场、磁场共存区域后，最终垂直打在下板的M点．（1）判断墨滴所带电荷的种类，并求其电荷量；（2）求磁感应强度B的值．【答案】解：（1）墨滴做匀速直线运动，处于平衡状态，电场力与重力等大反向，重力竖直向下，电场力竖直向上，电场力方向与电场方向相反，则墨滴带负电；墨滴在电场区域做匀速直线运动，有：q=mg，解得：q=．（2）墨滴垂直进入电磁场共存区域，重力仍与电场力平衡，合力等于洛伦兹力，墨滴做匀速圆周运动，洛伦兹力提供向心力，由牛顿第二定律得：qv0B=m，墨滴从上极板水平进入，墨滴在电磁场中做匀速圆周运动，垂直打在下板的M点，由几何知识可知，墨滴的轨道半径：R=d，解得：B=；答：（1）墨滴带负电，墨滴所带电荷量为；（2）磁感应强度B的值为．【解析】（1）墨滴处于平衡状态，根据平衡条件判断电性；根据电场力和重力平衡求出电荷量的大小．（2）墨滴垂直进入电磁场共存区域，重力仍与电场力平衡，粒子做匀速圆周运动，根据粒子垂直打在M点，通过几何关系得出粒子的轨道半径，根据洛伦兹力提供向心力求出磁感应强度的大小本题考查粒子在复合场中的运动，知道粒子在电场和重力场区域做匀速直线运动，进入电场、磁场和重力场区域，做匀速圆周运动．结合牛顿第二定律和共点力平衡进行求解．。
浙江省温州市永嘉中学2014-2015学年高二上学期第一次月考数学试卷
2014-2015学年浙江省温州市永嘉中学高二（上）第一次月考数学试卷一、选择题：本大题共10小题，每小题5分，共50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．等腰△ABC的三个顶点的坐标是A（﹣3，4），B（﹣5，0），C（﹣1，0），则BC边的中线AD所在直线的方程是（）A． x=﹣3 B． y=﹣3 C． x+y=1 D． x=2y2．圆柱的一个底面积为S，侧面展开图是一个正方形，那么这个圆柱的侧面积是（） A．πS B． 2πS C． 4πS D．3．用一个平行于水平面的平面去截球，得到如图所示的几何体，则它的俯视图是（）A． B． C． D．4．直线a，b是异面直线是指①a∩b=∅，且a与b不平行；②a⊂面α，b⊂面β，且平面α∩β=∅；③a⊂面α，b⊂面β，且a∩b=∅；④不存在平面α，能使a⊂α且b⊂α成立．上述结论正确的有（）A．①④ B．②③ C．③④ D．②④5．直线xcosθ+y+m=0的倾斜角范围是（）A． [，] B． [0，]∪[，π） C． [0，] D． [，）∪（，]6．过直线x+2y+1=0上点P作圆C：（x+2）2+（y+2）2=1的切线，切点为T，则|PT|的最小值为（） A． B． C． D． 27．实数x，y满足x2+y2﹣4x+1=0，则的最大值为（）A． B． C． D．8．已知a，b，c是三角形的三边，且直线ax+by+c=0与圆x2+y2=1相离，则此三角形（） A．是锐角三角形 B．是直角三角形 C．是钝角三角形 D．不确定9．如图，正方体ABCD﹣A′B′C′D′的棱线长为1，线段AC′上有两个动点E，F，且EF=，则下列结论中正确的是（）①直线AA′与CF是异面直线②三棱锥B′BEF体积为定值③异面直线DD′与BE所成角的余弦值范围是④BD⊥EF．A．①②④ B．②④ C．②③ D．②③④10．已知圆O：x2+y2﹣4=0，圆C：x2+y2+2x﹣15=0，若圆O的切线l交圆C于A，B两点，则△OAB 面积的取值范围是（）A． B． C． D．二、填空题：本大题共6小题，每小题4分，共24分．11．过点（1，2）且在两坐标轴上的截距相等的直线的方程．12．若圆x2+y2=4与圆x2+y2+2ay﹣6=0（a＞0）的公共弦的长为，则a= ．13．如图梯形O′A′B′C′是一个平面图形的直观图，在直观图中，O′C′=C′B′=2O′A′=3，则原平面图形的面积为．14．设某几何体的三视图如图（尺寸的长度单位为m）则该几何体的体积为m3．15．圆x2+y2+2x﹣4y+1=0关于直线2ax﹣by+2=0（a，b∈R）对称，则ab的取值范围是．16．已知圆C：x2+（y﹣3）2=4，一动直线l过A（﹣1，O）与圆C相交于P、Q两点，M是PQ中点，l与直线x+3y+6=0相交于N，则|AM|•|AN|= ．三、解答题：本大题共4小题，共46分．解答应写出文字说明、证明过程或演算步骤．17．在平面直角坐标系xOy中，已知直线l的方程为2x+（k﹣3）y﹣2k+4=0，k∈R．（Ⅰ）若坐标原点O关于直线l的对称点O′坐标为（a，2），求k的值．（Ⅱ）求坐标原点O到直线l距离的最大值．18．已知点M（3，﹣2）及圆C：x2+y2﹣2x﹣4y+1=0．（Ⅰ）求过点M的圆C的切线方程；（Ⅱ）过点M作直线l圆C交于A，B两点，求弦AB中点N的轨迹方程．19．已知三棱柱ABC﹣A′B′C′，侧棱与底面垂直，且所有的棱长均为2，E为AA′的中点，F为AB的中点．（Ⅰ）求多面体ABCB′C′E的体积；（Ⅱ）求异面直线C'E与CF所成角的余弦值．20．如图，圆C与y轴相切于点T（0，2），与x轴正半轴相交于两点M、N（点M在点N的左侧），且|MN|=3，（Ⅰ）求圆C的方程；（Ⅱ）过点M任作一条直线与圆O：x2+y2=4相交于两点A、B，连接AN、BN．求证：∠ANM=∠BNM．2014-2015学年浙江省温州市永嘉中学高二（上）第一次月考数学试卷参考答案与试题解析一、选择题：本大题共10小题，每小题5分，共50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．等腰△ABC的三个顶点的坐标是A（﹣3，4），B（﹣5，0），C（﹣1，0），则BC边的中线AD所在直线的方程是（）A． x=﹣3 B． y=﹣3 C． x+y=1 D． x=2y考点：直线的一般式方程．专题：直线与圆．分析：由已知条件得BC边中点D（﹣3，0），A（﹣3，4），由此求出BC边的中线AD所在直线的方程：x=﹣3．解答：解：∵等腰△ABC的三个顶点的坐标是A（﹣3，4），B（﹣5，0），C（﹣1，0），∴BC边中点D（﹣3，0），∴BC边的中线AD所在直线的方程：x=﹣3．故选：A．点评：本题考查直线方程的求法，是基础题，解题时要认真审题，注意中点坐标公式的合理运用．2．圆柱的一个底面积为S，侧面展开图是一个正方形，那么这个圆柱的侧面积是（） A．πS B． 2πS C． 4πS D．考点：棱柱的结构特征．专题：空间位置关系与距离．分析：通过圆柱的底面积，求出底面半径，进而求出圆柱的高，然后求圆柱的侧面积．解答：解：圆柱的底面积为S，所以底面半径为：，底面周长为：2 ；∵侧面展开图为一个正方形，所以圆柱的高为：2 ，所以圆柱的侧面积为：（2 ）2=4πS故选C．点评：本题考查棱柱的结构特征，考查计算能力，正确认识圆柱的侧面展开图与几何体的关系，是解题的突破口，基础题．3．用一个平行于水平面的平面去截球，得到如图所示的几何体，则它的俯视图是（）A． B． C． D．考点：简单空间图形的三视图．专题：规律型；空间位置关系与距离．分析：根据题意几何体是球缺，利用球的视图是圆，看不到的线要画虚线，可得答案．解答：解：用一个平行于水平面的平面去截球，截得的几何体是球缺，根据俯视图的定义，几何体的俯视图是两个同心圆，且内圆是截面的射影，∴内圆应是虚线，故选：B．点评：本题考查了几何体的三视图，要注意，看不到的线要画虚线4．直线a，b是异面直线是指①a∩b=∅，且a与b不平行；②a⊂面α，b⊂面β，且平面α∩β=∅；③a⊂面α，b⊂面β，且a∩b=∅；④不存在平面α，能使a⊂α且b⊂α成立．上述结论正确的有（）A．①④ B．②③ C．③④ D．②④考点：空间中直线与直线之间的位置关系．专题：空间位置关系与距离．分析：利用空间中线线、线面、面面的位置关系和异面直线的性质求解．解答：解：在①中，∵异面直线即不相交又不平行，∴a∩b=∅，故①正确；在②中，a⊂面α，b⊂面β，平面α与β相交或平行，故②错误；在③中，a⊂面α，b⊂面β，且a∩b=∅，此时a，b平行或异面，故③错误；在④中，不存在平面α，能使a⊂α且b⊂α成立，由异面直线的概念得④正确．故选：A．点评：本题考查命题真假的判断，是中档题，解题时要注意空间思维能力的培养．5．直线xcosθ+y+m=0的倾斜角范围是（）A． [，] B． [0，]∪[，π） C． [0，] D． [，）∪（，]考点：直线的一般式方程．分析：由直线xcosθ+y+m=0的斜率k=﹣cosθ∈[﹣1，1]，得﹣1≤tanα＜0或0≤tanα≤1，由此能求出直线xcosθ+y+m=0的倾斜角范围．解答：解：直线xcosθ+y+m=0的斜率k=﹣cosθ∈[﹣1，1]，∴﹣1≤tanα＜0或0≤tanα≤1，∴或0．∴直线xcosθ+y+m=0的倾斜角范围是[0，]∪[，π）．故选：B．点评：本题考查直线的倾斜角的取值范围的求法，是基础题，解题时要注意直线的斜率的合理运用．6．过直线x+2y+1=0上点P作圆C：（x+2）2+（y+2）2=1的切线，切点为T，则|PT|的最小值为（） A． B． C． D． 2考点：圆的切线方程．专题：直线与圆．分析：求出圆心C（﹣2，﹣2）到直线x+2y+1=0的距离d，可得|PT|的最小值为，计算求得结果．解答：解：要使|PT|最小，需圆心C（﹣2，﹣2）到直线x+2y+1=0上的点P的距离最小，而CP的最小值即圆心C（﹣2，﹣2）到直线x+2y+1=0的距离d==，故|PT|的最小值为==2，故选：D．点评：本题主要考查直线和圆相切的性质，点到直线的距离公式的应用，体现了转化的数学思想，属于基础题．7．实数x，y满足x2+y2﹣4x+1=0，则的最大值为（）A． B． C． D．考点：圆的一般方程．专题：直线与圆．分析：把方程x2+y2﹣4x+1=0化为标准形式，求出圆心和半径，设z=，即 y=（z﹣1）x，该方程表示一条过原点且斜率为z﹣1的一条直线，当此直线和圆相切时，求得z=1±，由此可得z 的最大值．解答：解：方程x2+y2﹣4x+1=0，即（x﹣2）2+y2=3，表示以（2，0）为圆心、半径等于的圆．设z=，即 y=（z﹣1）x，该方程表示一条过原点且斜率为z﹣1的一条直线，当此直线和圆相切时，由r==，求得z=1±，可得z的最大值为1+，故选：C．点评：本题主要考查圆的一般方程，直线和圆相切的性质，点到直线的距离公式，体现了转化的数学思想，属于基础题．8．已知a，b，c是三角形的三边，且直线ax+by+c=0与圆x2+y2=1相离，则此三角形（）A．是锐角三角形 B．是直角三角形 C．是钝角三角形 D．不确定考点：直线与圆的位置关系．专题：计算题；直线与圆．分析：先根据ax+by+c=0与圆x2+y2=1相离，可得到圆心到直线ax+by+c=0的距离大于半径1，进而可得到c2＞a2+b2，可得到cosC=＜0，从而可判断角C为钝角，故三角形的形状可判定．解答：解：由已知得，圆心到直线的距离d=＞1，∴c2＞a2+b2，∴cosC=＜0，故△ABC是钝角三角形．故选C．点评：本题主要考查三角形形状的判定、点到直线的距离公式、直线与圆的位置关系．考查基础知识的综合运用．9．如图，正方体ABCD﹣A′B′C′D′的棱线长为1，线段AC′上有两个动点E，F，且EF=，则下列结论中正确的是（）①直线AA′与CF是异面直线②三棱锥B′BEF体积为定值③异面直线DD′与BE所成角的余弦值范围是④BD⊥EF．A．①②④ B．②④ C．②③ D．②③④考点：空间中直线与直线之间的位置关系；异面直线及其所成的角．专题：空间位置关系与距离．分析：利用空间中线线、线面、面面间的位置关系求解．解答：解：在①中，∵A′F∥AC，∴A′、F、C、F四点共面，∴直线AA′与CF是共面直线，故①错误；在②中，∵线段AC′上有两个动点E，F，且EF=，点B′到直线A′C′的距离为定值，∴三棱锥B′BEF体积为定值，故②正确；在③中，当点E在A′处时，异面直线DD′与BE所成角的余弦值取最小值，当点E在A′C′中点位置时，异面直线DD′与BE所成角的余弦值取最大值，故③正确；在④中，∵BD⊥AC，AC∥EF，∴BD⊥EF，故④正确．故选：D．点评：本题考查命题真假的判断，是中档题，解题时要注意空间思维能力的培养．10．已知圆O：x2+y2﹣4=0，圆C：x2+y2+2x﹣15=0，若圆O的切线l交圆C于A，B两点，则△OAB 面积的取值范围是（）A． B． C． D．考点：圆与圆的位置关系及其判定．专题：计算题；直线与圆．分析：△OAB面积的大小与线段AB的大小有关，要求△OAB面积的取值范围，只需求出AB的范围，即可求解．解答：解：圆O的切线l交圆C于A，B两点，则△OAB面积，S=，圆O：x2+y2﹣4=0，的半径为r=2，AB是圆C：x2+y2+2x﹣15=0的弦长，圆C：x2+y2+2x﹣15=0的圆心（﹣1，0），半径为：4，圆心到AB的距离最小时，AB最大，圆心到AB的距离最大时，AB最小，如图：AB的最小值为：2=2；AB的最大值为：2=2；∴△OAB面积的最小值为：．∴△OAB面积的最大值为：．△OAB面积的取值范围是：．故选：A．点评：本题考查两个圆的位置关系，直线与圆的位置关系，考查计算能力．二、填空题：本大题共6小题，每小题4分，共24分．11．过点（1，2）且在两坐标轴上的截距相等的直线的方程2x﹣y=0或x+y﹣3=0 ．考点：直线的两点式方程．专题：计算题；分类讨论．分析：分两种情况考虑，第一：当所求直线与两坐标轴的截距不为0时，设出该直线的方程为x+y=a，把已知点坐标代入即可求出a的值，得到直线的方程；第二：当所求直线与两坐标轴的截距为0时，设该直线的方程为y=kx，把已知点的坐标代入即可求出k的值，得到直线的方程，综上，得到所有满足题意的直线的方程．解答：解：①当所求的直线与两坐标轴的截距不为0时，设该直线的方程为x+y=a，把（1，2）代入所设的方程得：a=3，则所求直线的方程为x+y=3即x+y﹣3=0；②当所求的直线与两坐标轴的截距为0时，设该直线的方程为y=kx，把（1，2）代入所求的方程得：k=2，则所求直线的方程为y=2x即2x﹣y=0．综上，所求直线的方程为：2x﹣y=0或x+y﹣3=0．故答案为：2x﹣y=0或x+y﹣3=0点评：此题考查学生会根据条件设出直线的截距式方程和点斜式方程，考查了分类讨论的数学思想，是一道综合题．12．若圆x2+y2=4与圆x2+y2+2ay﹣6=0（a＞0）的公共弦的长为，则a= 1 ．考点：圆与圆的位置关系及其判定；圆方程的综合应用．专题：直线与圆．分析：画出草图，不难得到半径、半弦长的关系，求解即可．解答：解：由已知x2+y2+2ay﹣6=0的半径为，圆心（0，﹣a），公共弦所在的直线方程为，ay=1．大圆的弦心距为：|a+|由图可知，解之得a=1．故答案为：1．点评：本小题考查圆与圆的位置关系，基础题．13．如图梯形O′A′B′C′是一个平面图形的直观图，在直观图中，O′C′=C′B′=2O′A′=3，则原平面图形的面积为27 ．考点：斜二测法画直观图．专题：计算题；空间位置关系与距离．分析：由原图和直观图的关系，可得原图中，上底长6，下底长3，高为6的梯形的面积．解答：解：∵直观图中，O′C′=C′B′=2O′A′=3，∴原图中，上底长6，下底长3，高为6的梯形的面积S==27，故答案为：27．点评：本题考查斜二测画法中原图和直观图面积之间的关系，属基本知识的考查．14．设某几何体的三视图如图（尺寸的长度单位为m）则该几何体的体积为 4 m3．考点：由三视图求面积、体积．专题：计算题；压轴题．分析：由三视图可知几何体是三棱锥，明确其数据关系直接解答即可．解答：解：这是一个三棱锥，高为2，底面三角形一边为4，这边上的高为3，体积等于×2×4×3=4故答案为：4点评：本题考查三视图求体积，三视图的复原，考查学生空间想象能力，是基础题．15．圆x2+y2+2x﹣4y+1=0关于直线2ax﹣by+2=0（a，b∈R）对称，则ab的取值范围是．考点：关于点、直线对称的圆的方程．专题：计算题；转化思想．分析：把圆的方程化为标准方程，找出圆心坐标和半径，由已知圆关于直线2ax﹣by+2=0对称，得到圆心在直线上，故把圆心坐标代入已知直线方程得到a与b的关系式，由a表示出b，设m=ab，将表示出的b代入ab中，得到m关于a的二次函数关系式，由二次函数求最大值的方法即可求出m 的最大值，即为ab的最大值，即可写出ab的取值范围．解答：解：把圆的方程化为标准方程得：（x+1）2+（y﹣2）2=4，∴圆心坐标为（﹣1，2），半径r=2，根据题意可知：圆心在已知直线2ax﹣by+2=0上，把圆心坐标代入直线方程得：﹣2a﹣2b+2=0，即b=1﹣a，则设m=ab=a（1﹣a）=﹣a2+a，∴当a=时，m有最大值，最大值为，即ab的最大值为，则ab的取值范围是（﹣∞，]．故答案为（﹣∞，]．点评：本题以直线与圆为载体，考查对称性，考查了直线与圆相交的性质，以及二次函数的性质．根据题意得到圆心在已知直线上是解本题的关键．16．已知圆C：x2+（y﹣3）2=4，一动直线l过A（﹣1，O）与圆C相交于P、Q两点，M是PQ中点，l与直线x+3y+6=0相交于N，则|AM|•|AN|= 5 ．考点：直线与圆相交的性质．专题：计算题；压轴题；转化思想．分析：设连接CA并延长交直线x+3y+6=0相交于G，可得CG⊥NG，由垂径定理得CM⊥PQ，可得△AGN∽△AMC，将比例线段转化为等积式，得|AM|•|AN|=|AC|•|AG|=5解答：解：设连接CA并延长交直线x+3y+6=0相交于G，连接CM可得AC的斜率为∵，∴直线AC与直线x+3y+6=0垂直又∵圆C中，M为弦PQ的中点∴CM⊥PQ因此△AGN∽△AMC，可得∴|AM|•|AN|=|AC|•|AG|又∵∴|AC|•|AG|=故答案为5点评：本题考查了直线与圆相交的性质，属于中档题，利用垂径定理得到三角形相似是解决本题的关键．三、解答题：本大题共4小题，共46分．解答应写出文字说明、证明过程或演算步骤．17．在平面直角坐标系xOy中，已知直线l的方程为2x+（k﹣3）y﹣2k+4=0，k∈R．（Ⅰ）若坐标原点O关于直线l的对称点O′坐标为（a，2），求k的值．（Ⅱ）求坐标原点O到直线l距离的最大值．考点：直线的一般式方程．专题：直线与圆．分析：（I）把线段OO′的中点M代入直线l的方程即可解出；（II）利用点到直线的距离公式、基本不等式的性质即可得出．解答：解：（I）线段OO′的中点M，代入直线l的方程可得2×+（k﹣3）×1﹣2k+4=0，化为k=a+1．（II）坐标原点O到直线l距离d=，考虑k＞2时，d=≤=，当且仅当k=2+时取等号．∴d的最大值为：．点评：本题考查了中点坐标公式、点到直线的距离公式、基本不等式的性质，考查了计算能力，属于基础题．18．已知点M（3，﹣2）及圆C：x2+y2﹣2x﹣4y+1=0．（Ⅰ）求过点M的圆C的切线方程；（Ⅱ）过点M作直线l圆C交于A，B两点，求弦AB中点N的轨迹方程．考点：轨迹方程．专题：直线与圆．分析：（Ⅰ）化圆的一般式方程为标准式，求出圆心坐标和半径，然后分切线的斜率存在和不存在求解，当斜率不存在时直接写出切线方程，斜率存在时，设出切线方程的点斜式，化为一般式，由圆心到切线的距离等于半径求斜率，则曲线方程可求；（Ⅱ）直接利用点差法求得弦AB中点N的轨迹方程．解答：解：（Ⅰ）由圆C：x2+y2﹣2x﹣4y+1=0，得（x﹣1）2+（y﹣2）2=4，∴圆C的圆心坐标C（1，2），半径为2，当过点M的圆C的切线的斜率不存在时，圆的切线方程为x=3；当过点M的圆C的切线的斜率存在时，设过点M的圆C的切线方程为y+2=k（x﹣3），即kx﹣y﹣3k﹣2=0．由题意得：，解得k=﹣．∴过点M的圆C的切线方程为，即3x+4y﹣1=0．综上，过点M的圆C的切线方程为x=3或3x+4y﹣1=0；（Ⅱ）设N（x，y），A（x1，y1），B（x2，y2），则x1+x2=2x，y1+y2=2y，①，②，两式作差得：=．∴．整理得：x2+y2﹣4x﹣2y+11=0．点评：本题考查了圆的切线方程的求法，考查了点差法求与弦中点有关的曲线的轨迹方程，是中档题．19．已知三棱柱ABC﹣A′B′C′，侧棱与底面垂直，且所有的棱长均为2，E为AA′的中点，F为AB的中点．（Ⅰ）求多面体ABCB′C′E的体积；（Ⅱ）求异面直线C'E与CF所成角的余弦值．考点：异面直线及其所成的角；棱柱、棱锥、棱台的体积．专题：空间位置关系与距离．分析：（I）分别求出直三棱柱ABC﹣A′B′C′的体积V．三棱锥E﹣A′B′C′的体积V1．即可得出多面体ABCB′C′E的体积=V﹣V1；（II）如图所示，取A′B′的中点D，连接C′D，DF，DE．可得四边形CFDC′是矩形．C′D∥CF．因此∠EC′D即是异面直线C′E与CF所成角．解答：解：（I）直三棱柱ABC﹣A′B′C′的体积V==2．三棱锥E﹣A′B′C′的体积V1=A′E==．∴多面体ABCB′C′E的体积=V﹣V1=；（II）如图所示，取A′B′的中点D，连接C′D，DF，DE．可得四边形CFDC′是矩形．∴C′D∥CF．∴∠EC′D即是异面直线C′E与CF所成角．在Rt△C′DE中，C′D=，C′E=．∴cos∠EC′D===．∴异面直线C′E与CF所成角的余弦值为．点评：本题考查了直三棱柱的体积及其性质、异面直线所成的角、直角三角形的边角关系，考查了推理能力与计算能力，属于基础题．20．如图，圆C与y轴相切于点T（0，2），与x轴正半轴相交于两点M、N（点M在点N的左侧），且|MN|=3，（Ⅰ）求圆C的方程；（Ⅱ）过点M任作一条直线与圆O：x2+y2=4相交于两点A、B，连接AN、BN．求证：∠ANM=∠BNM．考点：圆的标准方程；圆与圆的位置关系及其判定．专题：计算题．分析：（1）设圆的圆心为（a，2），则半径为a，根据|MN|=3，圆心C到弦MN的距离为2，得，求得r=a=，从而可以写出圆的标准方程．（2）写出M，N的坐标，设出直线AB的方方程，和圆x2+y2=4联立，根据韦达定理，表示出NB和NA斜率，求得斜率互为相反数，故∠ANM=∠BNM．解答：解：（Ⅰ）由已知可设C（a，2）（a＞0），圆C的半径r=a，（2分）又∵|MN|=3圆心C到弦MN的距离为2，故，所以a=r=，（4分）所以，圆C的方程为；（6分）（Ⅱ）令y=0，解得M（1，0），N（4，0），（7分）若直线AB斜率不存在，显然∠ANM=∠BNM；（8分）若直线AB斜率存在，设为y=kx﹣k，代入x2+y2=4得，（k2+1）x2﹣2k2x+k2﹣4=0，①（9分）设A（x1，y1），B（x2，y2），则x1、x2是方程①的两根，∴，（10分）则=．（13分）∴∠ANM=∠BNM．（14分）点评：本题考查了圆的标准方程求法以及圆锥曲线问题中韦达定理的应用，是综合类的题目，考虑到证两条直线的斜率互为相反数是解决此题的关键．。
浙江省永嘉二中高二数学第二学期返校考试试卷(无答案)
永嘉二中2014学年第二学期返校考试高二数学试卷〖温馨提示〗1.本卷满分120 分，共 4 页。
考试用时 120 分钟，请合理分配考试时间。
2.所有答案均需在答题卷或答题卡上作答，答在其他地方无效。
3.考试结束后，只需上交答题卷。
一、选择题（本大题共10小题，每小题4分，共40分，每小题给出的四个选项中，只有一项是符合题目要求的）1．直线x ＝－1的倾斜角和斜率分别是（ ▲ ）A ．45°，1B ．90°，不存在C ．135°，－1D ．180°，不存在2. 椭圆221925x y +=的焦点坐标为（ ▲ ） A.()()3,0,3,0- B.()()4,0,4,0- C.()()0,4,0,4- D.()()0,3,0,3-3．命题“若α＝π4，则tan α＝1”的逆否命题是（ ▲ ）A ．若α≠π4，则tan α≠1 B．若α＝π4，则tan α≠1C ．若tan α≠1，则α＝π4D ．若tan α≠1，则α≠π44．设βα,是两个不同的平面，l 是一条直线，以下命题正确的是（ ▲ ） A ．若α⊥l ，βα⊥，则β⊂l B ．若l ∥α，α∥β，则β⊂lC ．若l ∥α，βα⊥，则β⊥lD ．若α⊥l ，α∥β，则β⊥l 5．已知两条直线()011=+-+y x a 与()01212=-+-y x a 互相垂直， 则a 的值为（ ▲ ）A ．1=aB ．1=a 或23-=a C ．1-=a 或23-=a D ．1-=a 或23=a6．已知三棱柱111ABC A B C -的侧棱与底面垂直，体积为94，底面是边长为3的正三角形.若P 为底面111A B C 的中心，则PA 与平面ABC 所成角的大小为（ ▲ ）A ．125π.B ．3πC ．4πD ．6π7. 双曲线12222=-b y a x 与椭圆()0,012222>>>=+b m a by m x 的离心率互为倒数，则（ ▲ ）A ．222m b a =+ B ．m b a =+ C ．222m b a += D ． m b a +=第6题图8．如右图所示，正三棱锥V ABC -中，,,D E F 分别是,,VC VA AC 的中点，P 为VB 上任意一点，则直线DE与PF 所成的角的大小是（ ▲ ）A ． 030 B ．060 C ．090 D ．随P 点的变化而变化9．设21,F F 分别为双曲线()0,012222>>=-b a by a x 的左、右焦点，若在双曲线的右支上存在点P ，满足212F F PF =,且原点O 到直线1PF 的距离等于双曲线的实半轴长，则该双曲线的渐近线方程为（ ▲ ）A ．034=±y xB ．053=±y xC ．043=±y xD ．035=±y x10．正四棱锥（底面是正方形，顶点在底面上的射影是底面中心）ABCD S -的底面边长为4，高为4，点E 、F 、G 分别为SD,CD,BC 的中点，动点P 在正四棱锥的表面上运动，并且总保持PG ∥平面AEF,动点P 的轨迹的周长为（ ▲ ） A ．65+ B ． 6252+C ．265+ D ．652+二．填空题（共7小题，每小题4分，共28分）11．在空间直角坐标系中，若),4,3(),0,4,3(z B A --两点间的距离为10，则=z ▲12．若棱长为3的正方体的顶点都在同一球面上，则该球的表面积为 ▲ 13．下列命题：①一条直线在平面上的射影一定是直线； ②在平面上的射影是直线的图形一定是直线； ③两直线与同一个平面所成角相等， 则这两条直线互相平行；④两条平行直线与同一个平面所成角一定相等。
推荐-永嘉二中高三第二次月考数学试卷 精品
时间(小时)一、选择题：本大题共12个小题，每小题5分，共60分。
1.=-+-+→542lim 221x x x x x ( )（A ）21 （B ） 1 （C ）52（D ）412.设复数12ω=-，则1+ω=( )（A ） ω- （B ） 2ω （C ） 1ω-（D ）21ω3.某公司在甲、乙、丙、丁四个地区分别有150个、120个、180个、150个销售点.公司为了调查产品销售的情况,需从这600个销售点中抽取一个容量为100的样本,记这项调查为①：在丙地区中有20个特大型销焦点，要从中抽取7个调查其销售收入和售后服务情况，记这项调查为②，则完成①、②这两项调查宜采用的抽样方法依次是 （ ）（A ）分层抽样，系统抽样法 （B ）分层抽样法，简单随机抽样法 （C ）系统抽样法，分层抽样法 （D ）简随机抽样法，分层抽样法4.设函数2322,2()42,2x x f x x x x a+⎧>-⎪=--⎨≤⎪⎩在2x =处连续，则a =（ ）(A)12- (B)14- (C)14(D)135.满足条件|z-i|=|3+4i|复数z 在复平面上对应点的轨迹是（ ）（A ）一条直线 （B ）两条直线 （C ）圆 （D ）椭圆 6.某校为了了解学生的课外阅读情况，随机调查了50名学生，得到他们在某一天各自课外阅读所用时间的数据，结果用右侧的条形图表示. 根据条形图可得这50名学生这一天平均每人的课外阅读时间为（ ） (A)0.6小时 (B)0.9小时 (C)1.0小时 (D)1.5小时7.若函数)10(log )(<<=a x x f a 在区间]2,[a a 上的最大值是最小值的3倍，则a =（ ） (A)42 (B)22(C)41 (D)218.复数1z =, 则22z z -= ( )（A ）–3 （B ） 3 （C ） -3i （D ）3i9.()nn x 21lim -∞→存在，则实数x 的取值范围是 （ ）（A ）()1,0（B ）[]0,1 （C ）[)0,1 （D ）(]0,1永嘉二中高三第二次月考数学试卷18.1010.列命题中，真命题是 （ ）（A ）函数的最大值一定不是这个函数的极大值 （B ）函数的极大值可以小于这个函数的极小值 （C ）函数在某一区间上的极小值就是函数的最小值 （D ）函数在开区间内不存在最大值和最小值11.12321211111lim n n n n n n n n →∞-⎛⎫-+-+- ⎪+++++⎝⎭的值为 （ ） (A) 1- (B) 0 (C) 12(D) 112.同时抛掷两枚相同的均匀硬币,随机变量ξ=1表示结果中有正面向上, ξ=0表示结果中没有正面向上,则E ξ=（ ）（A ）1 （B ）12 （C ）14 （D ）34二、填空题：本大题共4 个小题，每小题4分，共16分。
浙江省永嘉二中高二地理第二学期返校考试试卷(无答案)
永嘉二中2014学年第二学期返校考试高二地理试卷〖温馨提示〗1.本卷满分100分，共 6页。
考试用时80分钟，请合理分配考试时间。
2.所有答案均需在答题卷或答题卡上作答，答在其他地方无效。
一、选择题（共35题， 70分）1．下列大陆中，被称为“高原大陆”的是A．亚洲大陆B．美洲大陆C．非洲大陆 D．南极大陆2．一艘巨型油轮从科威特驶往日本，要途径A．波斯湾——曼德海峡——马六甲海峡 B．波斯湾——霍尔木兹海峡——马六甲海峡 C．波斯湾——霍尔木兹海峡—英吉利海峡 D．波斯湾——霍尔木兹海峡——德雷克海峡3．下列有关运河和海峡的叙述中，属于错误的一条是A．苏伊士运河沟通红海和地中海 B．麦哲伦海峡分隔南美大陆和火地岛C．基尔运河联系北海和波罗的海 D．巴拿马运河连接太平洋和墨西哥湾4．位于两个大洲之间的海峡有A．麦哲伦海峡 B．土耳其海峡C．多佛尔海峡 D．马六甲海峡5．世界上海陆面积比例是A．各占一半 B．2/3陆地C．1/4海洋 D．三分陆七分海6．下列哪个大洲既位于北半球又位于西半球A．亚洲 B．非洲 C．北美洲 D．南美洲7．赤道穿过的大洲中，面积最大的是A．亚洲 B．非洲 C．大洋洲 D．南美洲8．四大洋中，跨经度最多的是A．太平洋 B．大西洋 C．印度洋 D．北冰洋读印度示意图，分析回答9—12题。
9．关于印度的叙述，正确的是①亚洲面积最大，耕地最多的国家②棉花主要分布在恒河及印度河流域③大部分地区为热带季风气候④发展中国家中工业比较发达的国家A ．①③B ．②④C ．①④D ．③④10．图示农作物分布是指A ．小麦B ．棉花C ．黄麻D ．水稻11．以技术密集型为主的新兴工业区是A ．a 工业区B ．b 工业区C ．c 工业区D ．d 工业区 12．由孟买直线到加尔各答，其年降水量的变化是A ．逐渐减少B ．先逐渐减少，后逐渐增加C ．逐渐增加D ．先逐渐增加，后逐渐减少13．初冬和早春，黄河某些河段易有凌汛现象出现，这种现象还可能发生在A ．尼罗河B ．密西西比河C ．莱茵河D ．叶尼塞河右图中，甲地常年受盛行西风的影响，读图回答14-15题。
浙江省永嘉县第二高级中学高二下学期返校考试物理试卷 含答案
永嘉二中2014学年第二学期返校考试高二物理试卷〖温馨提示〗1.本卷满分100分，共4页。
考试用时80分钟，请合理分配考试时间。
2.所有答案均需在答题卷或答题卡上作答，答在其他地方无效。
3.本卷计算中，g 均取l0m ／s 2一、单项选择题（每小题只有一个答案正确，每题3分，共30分）1．关于点电荷的说法，正确的是： （ ） A ．体积很大的带电体一定不能看成点电荷 B ．只有体积很小的带电体才能看成点电荷C ．当两个带电体的大小及形状对它们之间的相互作用力的影响可以忽略时，这两个带电体可看成点电荷D ．一切带电体都可以看成点电荷 2．孤立的A 、B 两点电荷相距R ，A 的电量是B 的a 倍，A 的质量是B 的b 倍，已知A 受到的静电力大小为F ，则B 受到的静电力大小为（ ）A ．FB ．(a +b ) FC ．(a -b )FD ．ab F3．A 和B 两点电势差AB U =-40V ，将带电量为q=8410--⨯C 的点电荷先后放在A 点和B 点，则（ ）A.A 点时电势大．B.放在B 点时电势能大．C.电荷从A 点到B 点，电场力做功J 6106.1-⨯-． D.电荷从A 点到B 点，电势能将减少J 6106.1-⨯．4．如图所示，电场中有A 、B 两点，场强分别为E A 、E B ，则下列说法正确的是 （ ）A ．E A =EB B ．E A ＞E BC ．E A 与E B 的方向不同D ．E A 与E B 的方向相同5．如图所示，实线表示匀强电场的电场线.一个带负电荷的粒子以某一速度射入匀强电场，只在电场力作用下，运动轨迹如图中虚线所示，a 、b 为轨迹上的两点.若a 点电势为a φ ，b 点电势为bφ，则下列说法中正确的是：（ ）A ．场强方向一定向左，且电势 a b φφ>B ．场强方向一定向左，且电势a b φφ<C ．场强方向一定向右，且电势a b φφ>D ．场强方向一定向右，且电势a b φφ<6．在1min 内通过阻值为5Ω的导体横截面的电量为480C，那么加在该导体两端的电压是E（）A．20 V B．40 V C．120 V D．1200 V 7．节日彩灯是由若干只小灯泡串联接到照明电路上，现有下列四组灯泡供选用，较为合适的是（）A．10只“12V，10W”B．10只“220V，15W”C．15只“15V，3W”D．30只“9V，2W”8．有一只小型电动机和一只白炽灯，它们的铭牌上都标有“220V 40W”的字样，现将它们并联接在电源电压为220V电路中，当电路接通后（）A.在相同的时间内发出的热量相同B.在相同的时间内消耗的电能相同C.对它们来说IU=I2R都是成立的D.对电动机来说IU=U2/R成立9．一个带负电的橡胶圆盘处在竖直面内，可以绕过其圆心的水平轴高速旋转，当它不转动时，放在它左侧水平轴上的小磁针静止时的指向，如图所示，从左往右看，当橡胶圆盘逆时针高速旋转时，小磁针N极指向（）A．不偏转B．在纸面内向左偏C．在纸面内向右偏D．向纸面内偏10．如图所示，一根有质量的金属棒MN，两端用细软导线连接后悬挂于a、b两点.棒的中部处于方向垂直纸面向里的匀强磁场中，棒中通有电流，方向从M流向N，此时悬线上有拉力，为了使拉力等于零，可（）A．适当减小磁感应强度B．使磁场反向C．适当增大电流强度D．使电流反向二、多项选择题（每小题给出的四个选项中至少有二个是正确的。
2019-2020学年浙江省永嘉县第二高级中学高三英语第二次联考试卷及答案解析
2019-2020学年浙江省永嘉县第二高级中学高三英语第二次联考试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AIn the 1994 filmForrest Gump, there’s a famous saying, “Life is like a box of chocolates; you never know what you’re gonna get.” The surprise is part of the fun. Now blind box toys are bringing the magic of surprise to online shopping.A blind box toy is hidden inside uniform packaging but invisible from the outside. You don’t know what will be inside, although the toys typically come from pop culture, ranging from movies to comics and cartoons.Blind boxes have caught on since they were first introduced fromJapantoChinain 2014. According to a 2019 Tmall report, the mini-series of Labubu blind box, designed byHong Kong-born Kasing Lung, was named Champion of Unit Sales with 55,000 sold in just 9 seconds during the Singles Day shopping event. Most customers for blind boxes are young people aged 18 to 35.According to The Paper, blind box toys are popular in part because of their cute appearances. The typically cute cartoon figurines come in miniature sizes, making them suitable for display almost anywhere.Even if blind boxes are not their top choice for decorations, the mystery and uncertainty of the process also attracts people. It’s the main reason why people buy blind boxes one after another.“Fear of the unknown is always a part of the box-opening process,” said Miss Cao, 24, who lives and works inShenyang. Speaking to Sina News, she said: “Until you open all the boxes, you cannot know what it is inside.”Opening a blind box is a delightful little surprise for our mundane daily lives, something small but fun to wait for each day, week or month. When people open this simple little box, they may be disappointed, but the uncertainty is part of the fun. People will open more blind boxes and hope for a better outcome.When someone re-makesForrest Gump, don't be surprised if he says, “Life is like a blind box...”1. Why is the famous saying in the filmForrest Gumpquoted at the beginning?A. To arouse the readers’ interest.B. To present the writer’s view.C. To introduce the topic.D. To highlight the fun of blind boxes.2. Which of the following is the main feature that makes blind box so popular?A. Miniature sizes.B. Cute appearances.C. Fear of the unknown.D. Mystery and uncertainty.3. What can we learn from the passage?A. Blind box became popular in 2019 after being first introduced fromJapantoChina.B. Blind box toys typically originated in pop culture, varying from movies to cartoons.C. Blind box toys was designed and named by Hong Kong-born Kasing Lung.D. When people open this simple little box, they will feel disappointed.BA world in which extinct creatures could be brought back to life came a step closer yesterday. Australian scientists have managed to extract a gene from a preserved sample of a Tasmanian tiger and make it active. Thebreakthroughhas left them dreaming that one day they will be able to recreate the animal, which died out more than 70 years ago. And if it can be done with the Tasmanian tiger, it may also be possible to resurrect (复活) creatures that have been extinct for far longer.“There used to be a time when extinction meant forever, but no more, ” said Professor Mike Archer. “We are now able to seriously challenge whether those animals that have gone for ever. What has been achieved is a very important step in bringing back those animals that are extinct. And while I think that technically it is still pretty difficult at the moment, we can now see the possibilities. I’m personally convinced that the Tasmanian tiger will be brought back to life in my lifetime.”The breakthrough came after nine years of experiments by scientists at the University of Melbourne, who extracted a gene from one of several tigers preserved in alcohol in a Melbourne museum. They removed the equivalent gene from a mouse embryo implanted the tiger gene and then watched as the mouse continued to grow normally, suggesting the tiger gene had been activated.Team leader Dr. Andrew Pask said it was the first time DNA from an extinct species had been used to “induce (引起) a functional response in another living organism”.However, the animal’s entire gene structure would have to be revived in the same way to even begin the possibility of bringing the Tasmanian tiger back from the dead.Mick Mooney, a wildlife officer ofthe Tasmanian Government, was worried that such developments could encourage people’s indifference to the protection of endangered species.“If people think that we can bring animals back to life after they’ve gone, they will start saying that there is nothing to worry about because we can fix it up later.”4. What does the underlined word “breakthrough” in the l paragraph refer to?A. Scientists have recreated new animals.B. Scientists have resurrected endangered animal.C. It has turned out that some creatures would not go extinct.D. A tiger gene has been extracted successfully and activated.5. Scientists are carrying out the experiments in order to ________.A. bring extinct animals back to lifeB. transplant the genes of tigers into other animalsC. find out what factors lead to the animals’ extinctionD. find a new way to extract animals’ DNA6. Mike Archer thinks that ________.A. scientists now have no technological difficulty reconnecting extinct animalsB. it’ll be a century or so before a Tasmanian tiger walks on the earth againC. humans have come closer in reconnecting extinct animalsD. reconnecting extinct animals is impossible7. We can learn from Mick Mooncy’s words that_________.A. he thought it unnecessary to worry about endangered animalsB. his opinion is in contrast with that of the Tasmanian GovernmentC. he thought people should be encouraged to protect endangered animalsD. he is concerned that bringing extinct animals back to life may have a negative effectCHumans are the only creature that gets around by standing up and putting one foot in front of the other. Our ability to walk upright has allowed humankind to travel great distances and survive changing climates, environments and landscapes.Countless scientific studies have found that walking is really good for us and this simple act can provide a number of healthimplications, which help people live longer. In fact, a walking routine, if done properly, might be the only exercise people need.How much walking should one aim for? You’ve likely heard we need 10,000 steps a day. That’s about 5 miles. But contrary to popular belief, this recommendation doesn’t come from science. Instead, itis from a 1960s advertising campaign to promote a pedometer (计步器) in Japan. Perhaps because it’s a round number and easy to remember, it stuck.Since the 1960s, researchers have studied the 10,000-steps-a-day standard and have turned up mixed results. Although 10,000 steps is certainly a healthy and worthwhile goal, it’s not fit for all.For instance, a recent Harvard University study involving more than 16,000 senior women found that those who got at least 4,400 steps a day greatly reduced their risk of dying early when compared with less active women. The study also noted that these benefits continued up to 7,500 steps. This 7,500 mark isn’t surprising: It’s similar to common public health recommendations, such as the Centers for Disease Control and Prevention’s recommendation of 150 minutes of moderate (适度的) physical activity a week for adults.8. What does the underlined word “implications” in Paragraph 2 refer to?A. BenefitsB. Problems.C. Habits.D. Manners.9. Where does the 10,000-steps-a-day standard come from?A. A Harvard University study.B. Science research on health.C. A pedometer advertisement.D. Public health recommendation.10. What can we know from the last paragraph?A. 7,500-steps-a-day standard is the best choice for all.B. More than 16,000 old people were involved in the study.C. Those who walk at least 4,400 steps a day won’t die early.D. 150-minute moderate exercise a week for adults is advised.11. What does the author mainly want to tell readers?A. The more you walk a day, the healthier you will be.B. We can benefit from continuous and proper walking.C. Walking upright helps humankind to explore the world.D. Advertisements can always tell us some scientific suggestions .DI waschecking out at the supermarket counter on Wednesday night, ready to pay for my bananas, when all ofa sudden, fear came upon me. My wallet was gone. And I could only have left it one place: the G9 bus, from which I had gotten off minutes earlier and which was now speeding to some stops. The moment of realizing it was gone was followed by mental math. How much time and money would it cost to replace the credit cards, the driver'slicense, the expensive lipstick ($ 55!).Two hours after I was back at my house, I heard a knock on the door. My husband answered while I sat in the dining room on the phone with a credit card company. "Does Jennifer live here?" I heard someone say. In her hand was my wallet, without a penny missing. She left before I could offer my gratitude to her.After I posted the story, I heard from her boyfriend, who identified the good citizen as Erin Ball, a 26-year-old girl working for a trade organization.Once I figured out her, I called to thank her. She said she spotted my wallet and thought that it's more dangerous to go to a stranger's house than leaving the wallet with the driver, but she still decided to take the chance. "If I were in that situation, I would want someone to try to find me," she said. Ball doesn't find her actions particularly excellent. She added, "It's not hard to do small things for people."After Ball found my wallet, she decided to post a picture of my driver's license online before going to my house, trying to see if anyone knew me. No sooner had she left my doorstep than I got emails from two neighbors who recognized my face, both offering to help me find my missing property.Ball found my house on a bitterly cold night,for which I was extremely grateful. Looking back, I'm not surprised someone had wanted to help a stranger. A warm current of honesty and harmony is running through this town.12. What do we know about the author according to paragraph 1?A. She missed the G9 bus.B. She paid for her bananas.C. She replaced the credit cards.D. She found she had left her wallet on the bus.13. Who helped the author find Ball?A. The G9 driver.B. The girl's boyfriend.C. The author's neighbors.D. The author's husband.14. What did Ball do first after finding the wallet?A. Ball called the author.B. Ball went to the author's house.C. Ball gave the wallet to the bus driver.D. Ball posted a photo of the author's driving license.15. Which of the following best describes Erin Ball?A. Humorous and kind.B. Generous and demanding.C. Honest and warm-hearted.D. Caring and outgoing.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年浙江省永嘉县第二高级中学高三英语二模试卷及答案解析
2019-2020学年浙江省永嘉县第二高级中学高三英语二模试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AKate Humble: Books that changed my lifeKate Humble is a writer and broadcaster specializing in science, wildlife and rural affairs. Together with her husband site runs Humble by Nature, a rural skills education centre on working farm near Monmouth intheWyeValley.Winnie the Poohby A A MilneMy father used to read this to me when I was very young — he used different voices for all the animals. The characterization (角色设定) was so clever; we all know someone just like each inhabitant of the HundredAcre Wood: gloomy Eeyore; thick but loyal Pooh; enthusiastic Tigger.A A Milne was masterful in exploring the way they got along together, opening my eyes to how society really works.Last Chance to Seeby Douglas Adams and Mark CarwardineThis book tells of the authors, adventures as they set out to find the rarest of animals, those on the edge of extinction.Their travels are rather exciting and they share a wonderful humour, which really appealed to me. Yet underpinning (支撑) everything is the realization that we can't just sit back and allow species to disappear. PicturePalaceby Paul TherouxI've always loved Theroux's travel writing, but this novel took my breath away. The words aren't long or complicated but, fromthat first paragraph, his writing grabs you by the nose hairs and drags you along. I had an art teacher who told me, “You're only an artist when you've found your own style, not when you're copying someone else, and Theroux represents this.”1. Why did the author mention the characterization ofWinnie the Pooh?A. To indicate the book has realistic values.B. To show how adorable the characters are.C. To persuade people to learn from the characters.D. To prove the writer is good at creating characters.2. What didLast Chance to Seestrike into Kate's heart?A. Curiosity.B. Responsibility.C. Exploration.D. Devotion.3. Which writer does Kate Humble like for his original writing?A. A A Milne.B. Douglas Adams.C. Mark Carwardine.D. Paul Theroux.BEveryone can be angry. But if you take the time to actually examine your anger instead of just “feeling” angry, you’ll have a better understanding of yourself. Knowing why you feel so angry can provide you with some surprising answers. These answers can enable you to suddenly grow spiritually and mentally.I can give you a personal example. I went to a meeting once and I was verbally attacked over an application I supported at my workplace. Various people went on and on about how terrible this system was and that it never worked. That didn’t bother me that much. I was used to that but one of the comments that was said was, “Your job is pointless.” This really upset meand at the time, I was ly furious(发怒地) with that comment.I was so angry and upset that they would treat me that way. Once I took the time to think about what was really making me so mad. I learned a lot. I realized that the comment was more truethan I wanted to admit. In the big scheme of things, my job was pointless. It wasn’t what I really wanted to be doing with my life and this was what frustrated me the most. Here I was pouring part of my heart and soul into a job I didn’t even really want to do. I was using it as a crutch(拐杖) because I didn’t have the confidence in myself to take the scary road towards what I really wanted to do. As soon as I realized that, a lot of my anger just melted away. I also realized that I needed to start focusing on what I really wanted to do.I now consider this incident as a great gift It got me back on track to moving in the direction I wanted to go with my life. I probably wouldn’t be where I am today if I hadn’t taken the time to figure out why I was really so angry.4. What made the author angry at the meeting?A. The system of the company was terrible.B. Someone said his job is insignificant.C. The policy of the company didn’t work.D. The application he supported was of no effect.5. What brought down the anger of the author?A. The apology someone made at the meeting.B. The crutch he used to take the scary road.C. His awareness of the fact that the comment was true.D. The courage he had to overcome the challenges.6. Why did the author consider the incident as a gift?A. It brought him back on track to the goal.B. It helped him get promoted to a higher position.C. It helped him change his character since then.D. It provided him with confidence in his career.7. What can be the best title of the passage?A. How to Cope with Verbal Attack in a CompanyB. Avoid Being Pointless at WorkC. Anger Is Harmful to HealthD. Understanding Yourself Better Through AngerCDragon boating is a team sport that has its root in ancient China. The boats are decorated with a dragon head and tail. In recent years cancer survivor groups have got involved in the sport to help make friends and help rebuild their lives.On a recent Saturday morning, a group of 20 women were on a boat in the Anacostia River in Washington DC. They moved their paddles(船桨)in rhythm to the call of a coach. The women belong to the dragon boat team GoPink! DC, which trains weekly. It also races against other breast cancer survivor teams in dragon boat festivals. As a result, GoPink! DC won medals in this Washington dragon boat festival.Lydia Collins joined five years ago after finding out she had breast cancer. “I was diagnosed with breast cancer.I was demoralized because of my illness - I lost all interest in life and wouldn't even get out of bed to eat. But now I love the team spirit. I just love everything about it. It is like a floating support group on the water.”The paddles are breast cancer survivors and their supporters. Annette Rothemel helped establish(建立)the group in 2006. She is a researcher with the National Institutes of Health as well as a breast cancer survivor. “It is sort of an easy entry sport because on the same boat people at different levels can be doing the same sport.” ButMs Rothemel saysdragon boating can be physically demanding, especially for someone who is sick and getting treatment for cancer.“It’s hard but I think you have to challenge yourself in life. This is something I look forward to. I get to be out here with my sisters and supporters that understand what I’m going through and help motivate me. So it makes me stronger and it makes me feel better,” another cancer survivor Rhonda Hartzel said.Annette Rothemel says the cancer survivors feel a sense of sisterhood and share good times when they paddle together. She says both feelings are treasured by the team.8. What do the underline wordsdemoralizedIn para.3 probably mean?A. depressedB. anxiousC. astonishedD. awkward9. What can we know about Lydia Collims from the text?A. she helps establish Go Pink !DCB. she tries to find a cure for the cancerC. she benefits from the dragon boat raceD. she gives up hope because of her illness10. How can the dragon boat race help the cancer survivorsA. forget their tough experiencesB. recover physically and mentallyC. get rid of the pains of their cancerD. enjoy their rest life without sufferings11. What does the text tell us about Annette Rothemel?A. she is an expert in studying the cause of the cancerB. she helps the cancer survivors in financial difficultiesC. she believes there is a healthful result from the dragon boat raceD. she thinks it unwise for the patient to join in the dragon boat raceDWhen almost everyone has a mobile phone, why are more than half of Australian homes still paying for a landline（座机）?These days you’d be hard pressed to find anyone in Australia over the age of 15 who doesn’t own a mobile phone. In fact plenty of younger kids have one in their pocket. Practically everyone can make and receive calls anywhere, anytime.Still, 55 percent of Australians have a landline phone at home and only just over a quarter（29%）rely only on their smartphones according to a survey（调查）. Of those Australians who still have a landline, a thirdconcedethat it’s not really necessary and they’re keeping it as a security blanket — 19 percent say they never use it while a further13 percent keep it in case of emergencies. I think my home falls into that category.More than half of Australian homes are still choosing to stick with their home phone. Age is naturally a factor （因素）— only 58 percent of Generation Ys still use landlinesnow and then, compared to 84 percent of Baby Boomers who’ve perhaps had the same home number for 50 years. Age isn’t the only factor; I’d say it’s also to do with the makeup of your household.Generation Xers with young families, like my wife and I, can still find it convenient to have a home phone rather than providing a mobile phone for every family member. That said, to be honest the only people who ever ring our home phone are our Baby Boomers parents, to the point where we play a game and guess who iscalling before we pick up the phone（using Caller ID would take the fun out of it）.How attached are you to your landline? How long until they go the way of gas street lamps and morning milk deliveries?12. What does paragraph 2 mainly tell us about mobilephones?A. Their target users.B. Their wide popularity.C. Their major functions.D. Their complex design.13. What does the underlined word “concede” in paragraph 3 mean?A. Admit.B. Argue.C. Remember.D. Remark.14. What can we say about Baby Boomers?A. They like smartphone games.B. They enjoy guessing callers’ identity.C. They keep using landline phones.D. They are attached to their family.15. What can be inferred about the landline from the last paragraph?A. It remains a family necessity.B. Itwill fall out of use some day.C. It may increase daily expenses.D. It is as important as the gas light.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年浙江省永嘉县第二高级中学高三英语下学期期末考试试题及参考答案
2019-2020学年浙江省永嘉县第二高级中学高三英语下学期期末考试试题及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AReturns & Refund Guarantee（保证；保证书）The “Returns & Refund Guarantee” is a promise provided by sellers for every item they sell on DHgate. com. When you receive an item that was bought and paid for on our site, and you find it is not as described or isof low quality, you can contact the seller to resolve these problems. DHgate will offer additional assistance if the seller is not cooperative.Scope（范围）The following points should not be included in the “Returns & Refund Guarantee”：▲The seller didn't make any promise.▲The seller can provide evidence to prove the items are as described.▲You didn't contact the seller within the promised time.▲You have released the payment to the seller before asking DHgate for help.Sellers are able to set up the following promises：Returning items for any reasonBuyers can return items for a refund within a specific date which has been set up by sellers, such as 3 days, and 7 days from the day when the items are received. The items' receiving date is the date that is indicated on the shipping carrier's official website. Buyers should prepay any return shipping cost, which will be given back to the buyers after the seller receives the items as long as the items are returned in the same exact condition as when they were delivered.Returns or Refunds accepted if the product has quality issuesBuyers can return the items for a refund when they are not as described or possess quality issues by communicating directly with the seller. The seller is responsible for the return shipping cost.Buyers can get a refund and keep the items when the items are not as described or possess quality issues by negotiating directly with sellers.1.Who can get additional assistance from DHgate in the guarantee?A.The buyers in physical stores.B.The buyers on DHgate. com.C.The sellers on DHgate. com.D.Both the buyers and the sellers.2.Which situation is within the scope of the guarantee?A.The seller didn't make any promise.B.The buyer has paid the seller in advance.C.The buyer asked for help within the promised time.D.The seller proves that there is nothing wrong with the item.3.Which of the following is true according to the passage?A.Not all the sellers make promises.B.DHgate sometimes will pay the buyers.C.Sellers should prepay return shipping cost.D.The buyer can't keep the items after getting a refund.BItaly's fashion capital is gray — not only because of the blocks of stone buildings，but also due to its often-gray sky, which traps pollution. ButMilannow wants to change it.The city has an ambitious plan to plant 3 million new trees by 2030 - a move that experts say could offer relief from the city's hot weather. Some projects have already contributed to environmental improvements. Architect Stefano Boeri’s Vertical Forest residential (居民的) tower, completed in 2014, aims to improve not only air quality but the quality of life for Milan residents. Boeri created a smallisland of greenery in the heart ofMilan, filling every balcony with plants that absorb carbon dioxide.“I think forestation is one of the best chances that we have today. It is one of the most effective ways we have to fight climate change, because everyone can plant trees, Boeri said.Damiano Di Simine, a member of the environmental group Legambiente , said the greenMilanproject will lower temperatures in a city where the nighttime temperature can be 6 degrees Celsius higher than in the surrounding area. City show thatMilanexperiences 35 hot nights a year. Because the city lies close to theAlps, Milin gets very little wind to lower the city's temperatures. "Planting trees will help this," Di said.TheVerticalForesthas attracted more than 20 species of birds. And the shade provided by the 800 trees and 15,000 plants means that residents rarely have to put on air conditioning, even in hot summers. TheVerticalForest's total greenery- can absorb 30 metric tons of carbon dioxide every year. The presence of green trees has a very important effect on people's health and psychological state, as has already been proved.4. What change doesMilanplan to make?A. Planting more trees.B. Creating a new fashion style.C. Pulling down more gray stone buildings.D. Doing more surveys to study global wanning.5. What's Boeri's opinion on the city's plan?A. It costs a lot.B. It is unpractical.C. It fails to attract people's attention.D. It is helpful to fight against climate change.6. What is Di Simine's attitude toward the city's plan?A. Doubtful.B. Supportive.C. Disappointed.D. Unconcerned.7. What does the last paragraph focus on?A. Specifics of the city's plan.B. Challenges faced by the city.C. The aim of theVerticalForestproject.D. The positive effect of theVerticalForestproject.CMost people around the world are right-handed. This also seems to be true in history. In 1799, scientists studied works of art made at different times from 1,500 B.C. to the 1950s. Most of the people shown in these works are right-handed, so the scientists guessed that right-handedness has always been common through history. Today, only about 10% to 15% of the world’s population is left-handed.Why are there more right-handed people than left-handed ones? Scientists now know that a person’s two hands each have their own jobs. For most people, the left hand is used to find things or hold things. The right hand is used to work with things. This is because of the different work of the two sides of the brain. The right side of the brain, which makes a person’s hands and eyes work together, controls the left hand. The left-side of the brain, which controls the right hand, is the centre for thinking and doing problems. These findings show that more artists should be left-handed, and studies have found that left-handedness is twice as common among artists as among people in other jobs.No one really knows what makes a person become right-handed instead of left-handed. Scientists have found that almost 40% of the people become left-handed because their main brain is damaged when they are born. However, this doesn’t happen to everyone, so scientists guess there must be another reason why people become left-handed. One idea is that people usually get right-handed from their parents. If a person does not receive the gene(基因) for right-handedness, he / she may become either right-handed or left-handed according to the chance and the people they work or live with.Though right-handedness is more common than left-handedness, people no longer think left-handed people are strange or unusual. A long time ago, left-handed children were made to use their right hands like other children, but today they don’t have to.8. After studying works of art made at different times in history, the scientists found _______.A. the art began from 1,500B.C.B. the works of art ended in the 1950sC. most people shown in the works of art are right-handedD. most people shown in the works of art are left-handed9. What is the left hand for most people used to do?A. It’s used to find or hold things.B. It’s used to work with things.C. It’s used to make a person’s eyes work together.D. It’s the centre for thinking and doing problems.10. According to the passage, which of the following is NOT true?A. No one really knows what makes a person become right-handed.B. Left-handedness is cleverer than right-handedness.C. Today children are not made to use their right hands only.D. Scientists think there must be some reason why people become left-handed.11. The best title for this passage is _______.A. Scientists’ New InventionsB. Left-handed PeopleC. Which HandD. Different Brains, Different HandsDAlaska—The American city Anchorage is recovering from a powerful earthquake Friday that damaged public buildings, homes and roads.The 7.0 earthquake caused buildings to slake. But there have been no reports of deaths, serious injuries or damage. Officials say the quake has not affected transportation of food and her supplies. “The ships are coming in on schedule, the supply lines are at this point working well,” the government told reporters Sunday.The Glenn Highway was probably the road hit hardest by the earthquake. It connects the state's largest city to other parts in the north. Traffic has been heavy and slow—moving since the quake. Drivers are being guided. Groups of workers are trying to rebuild areas where the quake left large holes in the road.People who are still nervous after the major quake have been more upset by more than 1, 700 aftershocks. “Anything that moves, you feel terrified”said David, whose home suffered structural(结构)damage, including a sunken foundation(地基). Actually, Alaska came up with strict building rules after a 9. 2 earthquake in 1964. That was the second most powerful earthquake on record.Government officials said a public health center promises that moneyfor medical treatment will continue to come. Mental healthy service(心理健康服务)is also available for people hurt by the disaster.Earthquake experts say there is a 4 percent chance of another 7. 0 earthquake or greater in the following week. "The chance is very small, but its not impossible, ” said the expert, Paul Caruso.12. What was the result of the earthquake?A. Buildings were damaged.B. Food supply was cut off.C. Many people were killedD. The ships could not come in.13. Why is the traffic slow on the Glenn Highway?A. Because small quakes hit the city.B. Because falling rocks are a danger.C. Because the highway is badly damaged.D. Because drivers are misled.14. What can you learn from Paul Caruso?A. Another greater earthquake is on the way.B. Chances still exists of another earthquake.C. It will be safe in the 1th week after the quake.D. There is no possibility for more quakes.15. Where can your possibly read the passage?A. Ina story book.B. In a travel journal.C. In a poster.D. In a newspaper.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2021届浙江省永嘉县第二高级中学高三语文期末考试试卷及答案
2021届浙江省永嘉县第二高级中学高三语文期末考试试卷及答案一、现代文阅读（36分）(一)现代文阅读I(9分)阅读下面的文本，完成下列各题。
病人①每天下午，她都准时来到医院大门口左侧的台阶上，铺下一张报纸，静静地坐在那儿看书。
那是一本很厚的书。
她的面前是一个花坛，红色的郁金香正在灿烂地开放。
在她若有所思的时候，能看到她的那双大眼睛，平静而且清澈。
虽然病号服并不合体，但并不能掩盖住她典雅的气质。
②她很友善，每当有人找她问事的时候，她表现得非常耐心。
我想，她有可能是位教师或幼儿园阿姨。
③起风了，她轻轻地合上那本书，又整整齐齐把那张报纸叠好，转身走进了大楼。
④楼内的人渐渐多了起来，这个点有上班的，也有下班的，正好又是探视的日子。
电梯刚停下，人们争着拥了进去。
电梯马上就有了反应，发出“受不了”的报警声，最后上来的人没有下去的意思，她就从中间挤了出来，等下一趟。
⑤下一趟人照样很多，不过还好，电梯没有报警，人们纷纷选择自己要去的楼层数。
有个农民模样的大伯触动数字7的时候，那数字就是不亮。
他有些着急，还有些紧张。
一遍一遍地摁。
但没有人告诉他为什么。
她发现后，急忙说：“大伯，这部电梯双层停。
”大伯仍然没有明白过来什么是“双层停”。
说话间已经到了8层。
大伯不知道该怎么办，不肯下。
她非常客气地对电梯内的人说：“请等我一下，我把他送到楼梯口。
”她让大伯从8层走到7层。
其实楼梯离电梯也就四五步远，她很快就回来了，电梯内的不少人只是表情严肃，并没有说什么。
当然，肯定有人心里会想：这人真多事。
⑥电梯慢慢上行，一位手捧花篮的小伙子自言自语：“口腔科病房是不是在12层？”她主动接过来说：“是的，往左拐。
”⑦电梯到了14层，一位急忙下电梯的姑娘不小心丢下了插在塑料袋里的一枝玫瑰。
塑料袋里有几盒营养品，但只有这一枝玫瑰。
这时电梯门将要关上，她迅速触动开门钮并捡起那枝玫瑰，她还没有说完“请等我一下”就跨出了电梯，她一定想把那枝玫瑰还给那位姑娘。
浙江省永嘉二中高二化学第二学期返校考试试卷(无答案)
永嘉二中2014学年第二学期返校考试高二化学试卷试卷满分100分，考试时间80分钟可能用到的相对原子质量：H—1 C—12 O—16 N—14 Cl—35.5 Al—27 Fe—56 Cu—64第Ⅰ卷（选择题共50分）一．选择题（共50分；每小题只有一个．．．．选项符合题意）1—10题每小题2分，共20分1.下列物质中，属于混合物的是( )A．碳酸钠 B．液态氨 C．铝热剂 D．氢氧化钠2.下列化合物中，既含有离子键又含有共价键的是（）A．BaCl2 B．H2O C．Ca(OH)2 D．Na2OSO－的物质的量3.有Na2SO4和Fe2(SO4)3的混合溶液，已知其中Fe3＋的物质的量浓度为0.4mol/L，24浓度为0.7mol/L，则此溶液中Na＋的物质的量浓度为( )A、0.1mol/LB、0.15mol/LC、0.2mol/LD、0.25mol/L4.已知X、Y、Z为同周期的三种元素，它们的最高价氧化物对应水化物的酸性相对强弱是：HXO4＞H2Y O4＞H3ZO4。
则下列说法正确的是（）A．气态氢化物的稳定性：HX＞H2Y＞ZH3B．元素的非金属性：Y＜X＜ZC．原子半径：X＞Y＞Z D．原子序数：Z＞Y＞X5. 下列化学用语正确的是( )A．K+离子的结构示意图： B．四氯化碳的电子式：C．CH4分子的比例模型：．次氯酸的结构式： H－O－Cl6．N A代表阿伏加德罗常数，下列说法正确的是（）A．1mol/L的NaOH溶液中Na+的物质的量为1molB．常温常压下，32gO2与O3的混合气体中含有的原子总数为2N AC．0.1mol氯气与足量的铁发生反应，转移的电子为0.3N AD．25℃时，l L pH=13的Ba(OH)2溶液中含有OH—的数目为0.2N A7.下列能达到实验目的的是( )A.用装置①稀释浓硫酸B.用装置②制备氨气C.用装置③从海水中制备少量蒸馏水D.用装置④向容量瓶中转移溶液8．在由水电离产生的H＋浓度为1×10－13m ol·L－1的溶液中，一定能大量共存的离子组是：（）A．K＋、Cl－、NO3－、S2－ B．Na＋、Cl－、NO3－、SO42－C．K＋、Fe2＋、I－、SO42－D．Na＋、Ca2＋、Cl－、HCO3－9.下列分类或归类正确的是( )①液氯、氨水、干冰、碘化银均为纯净物②CaCl 2、NaOH 、HCl 、IBr 均为化合物 ③明矾、水银、烧碱、硫酸均为强电解质④C 60、C 70、金刚石、石墨均为碳的同素异形体 ⑤碘酒、淀粉溶液、水雾、纳米材料均为胶体A ．①③④B ．②③C ．②④D ．②③④⑤10.为除去括号内的杂质，所选用的试剂或方法不正确的是( ) A ．NO(NO 2)——通入足量水中，再用向上排空气法收集气体 B ．NaHCO 3溶液(Na 2CO 3)——通入过量CO 2C ．Cl 2(HCl)——用排饱和NaCl 溶液的方法收集气体D ．CuO(C)——直接在空气中加热 11—20题每小题3分，共30分11．氮化钠和氢化钠分别与水反应的化学方程式如下：①Na 3N+3H 2O ＝3NaOH+NH 3 ②NaH+H 2O ＝NaOH+H 2↑。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
永嘉二中2014届高三练读快餐（二）
〖晚餐一练〗
1．下列词语中加点字的读音完全相同的一项是（）
A．按揭．结．实关节．竭．泽而鱼桀．骜不驯
B．飙．升镖．局骠．勇彪．炳千古分道扬镳．
C．遗赠．憎．恶曾．祖锃．明瓦亮铮．铮悦耳
D．汲．取即．使辑．录佶．屈聱牙嫉．恶如仇
2．下列词语中没有错别字的一组是（）
A．溃疡不共带天匪夷所思摩肩接踵
B．笑靥精诚团结廖若晨星骈手胝足
C．嘉宾鞭长莫及谑而不虐自矜其功
D．箴言义正词严责无旁代评头品足
3．下列各句中加点成语使用不当的一项是（）
A．再好的理论，如果只是纸上谈兵、束之高阁
．．．．，并不实践，那么，这种理论也是毫无价值的。
B．只有领导干部严格自律，清廉为政，老百姓才会照章办事，如此上行下效
．．．．，整个社会风气才会好转。
C．在中国载人航天圆满成功的总结表彰会上，总指挥高屋建瓴
．．．．的精彩发言。
让我们似乎看到了中国航天事业发展的光辉灿烂的明天。
D．今年的元宵节处处流光溢彩，在人民广场上，绚丽的焰火，把天空涂抹得五光十色，映照着广场上
项背相望
．．．．的人群。
4．下列各句没有语病的一项是（）
A．政府有关部门只要做好对城市低收入居民的各种扶持工作，农产品价格应该能回到合理的水平上，这样才能对增加农民的收入起到比较积极的作用。
B．创新没有终点，实践不会终结，因此解放思想也不会一劳永逸。
难道我们能否认这不是真理吗？
C．记者从全国防治高致病性禽流感指挥部获悉：国家已安排专项经费1亿元，加强防治高致病性禽流感科技攻关。
D．考古人员在西溪遗址发掘出了大量的釜、豆、钵、甑、器盖、器座等陶器和穿孔石斧、石锛、石凿等石器，以及各类玉器、骨器和动物标本等。
5．下列各句中没有语病句意明确的一句是（）
A．改革开放二十多年来，我们的国家沿着建设有中国特色的社会主义方向阔步前进，取得了丰硕的成果。
B．如此一批来自有东方巴黎之称的上海人，在战乱之后来到弹丸之地香港，开始他们的白手起家的创业生涯。
C．凡是具有某种尽管是微不足道的但是有利于生存斗争的个别特质的个体，都最有希望得到进一步的发展。
D．张老先生家中藏书丰富，为了查找写论文的资料，我把他家中珍藏的古书几次借回家去详细翻阅。
6.议论文举例论证中有一种“列举法”，即用简短的词语、语句连续举出三个或三个以上的事例来证明同一个观点。
这样的论证，“气势和力度兼而有之。
”请以“有梦想才会有奇迹”为论点，补写两个事例。
（100
字左右）。
（4分）
袁隆平梦见水稻大到可以让人在稻穗下乘凉，怀揣这份梦想，他孜孜以求，成为了“杂交水稻之父”；；。
〖早餐一读〗
愿赤心长留
社会总是会慷慨地给予孩童一份特别的关爱，这关爱中又无疑杂着些许歆羡：看那些孩子，比起翁妪，甚至比起我们，他们有明亮的眼，有光洁的皮肤，更有纯粹的心灵。
单纯、柔软、好奇并敬畏着世界，赤子之心即是如此，其珍贵亦在此。
然而这关爱、这歆羡恰恰暴露了我们的尴尬与不堪：我们的心，我们的千回百转计谋频出的心，已不配被唤作“赤子之心”，亦无法成为孩童的表率。
就像赫胥黎所说的，“少男少女的心灵正在提前硬化”。
童心已失，我们自然将走向沉沦。
不必费尽心力去找寻什么例证了，整个的社会就是最好的例证：看着老者的无助，我们的视线是不约而同地弯着的；看着旁人无视信号灯穿梭于车流这中，我们的心肠是硬的。
“人们感到痛苦的不是他们用笑声代替了思考，而是他们不知道为何发笑以及为什么不再思考。
”当赫胥黎在《美丽新世界》中写下这句振聋发聩之语，他是否已经预料到了物质的洪流将不由分说地卷走我们珍贵的纯净的心？他是否想见了失去赤心之心的社会将是一个没有敬畏而充满了算计、无聊的沉沦之地？
是的，我们如此珍视孩童的以及像孩童一样的纯净的心灵，但如此美好而脆弱的东西该如何在社会中，在这个肮脏的大漩涡中保持独立？不是人人都像叶芝一样，有勇气说出“我就要走了”的脱离世俗之语，有足够澄澈的心去“无论在车行道还是灰暗的人行道”都能听到远方的海浪。
叶芝是幸运的，他呵护着自己的童心，也就守护了一方净土。
可是谁会来守护我们的心，来柔化我们的心呢？请先自己行动起来，拂一拂心上的浮尘吧！
我不能免俗，不敢夸耀臼己的心仍是纯净的。
所以当我面对我的妹妹，看着她像所有孩童一样，直率地向世界发问并表达臼己的喜怒哀乐；看着她依旧敬良着这个世界，我无疑是惭愧的。
我们不需要更多没有感情的行尸走肉了，不需要更多试图去征服一切的狂妄之人了。
如果无法更改世界的运行轨迹，就请守护身边的童心吧！它们的单纯与柔软，不设防备却拥有最好的感化力量，仿佛星星点灯，终会照亮黑暗。
童心之贵，贵在其真、其柔、其善。
人的成长会失去许多，却不应失去最本身最纯净的赤子之心。
就像埃斯蒂斯所说的：“我们不是要-卜|子拯救整个世界，但我们可以伸出手去挽救触手可及的部分。
”我愿这赤子之心，可长存你我周围，更长存于你我心间。
永嘉二中2014届高三练读快餐（二）参考答案
1．D（都读jí，A中“揭”“结”都读jiē，余读jié；B中“骠”读piào，余读biāo;C中“憎”“曾”读zēng，“铮”音zhēng，余读zèng）
2．C（A中“带”作“戴”；B中“廖”“骈”分别作“寥”“胼”；D中“代”作“贷”。
）
3．B（“上行下效”含贬义。
）
4．A（B句否定不当，去掉最后一个“不”；C中“加强”缺宾语，在句末加上“工作”；D句语序不当，“大量的”应移至“陶器”前。
）
5．C句正确。
A搭配不当，“沿着”与“方向”搭配不当；B杂糅，应为“来自有东方巴黎之称的上海的上海人”；D语序不当，应改为“我几次把他家中珍藏的古书借回去详细翻阅”。
6.参考示例：印象派大师雷诺阿坚信“美会留下”，他带着这份梦想坚持绘画，最终得到了世人的肯定和
褒奖；巴尔扎克说过“拿破仑用剑没完成的事业，我要用笔来完成。
”执着于这份梦想，他数十年如一日完成了煌煌著作《人间喜剧》。