2013-2014-高二下期末考

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2013-2014学年高二下学期期末考试英语试题

2013-2014学年高二下学期期末考试英语试题

2013-2014学年高二下学期期末考试英语试题本试卷共分为两大部分:第一部分:Ⅰ.听力第一节(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秒钟的时间来回答和阅读下一小题,每段对话一遍。

1. What do we know about the car ?A. It is a new carB. It was bought five years agoC. It does not work now2. How did Charles travel through South China ?A. By carB. By busC. By train3. What does the woman want to drink at the moment ?A. Hot coffeeB. Some waterC. Something cool4. What is Mr. Black doing now ?A. He is workingB. He is having lunchC. He is taking a message5. What do we know about Tom ?A. Tom worked hard last termB. Tom has not made great progress in his studiesC. Tom is one of the best students第二节(共15小题,每小题1.5分,满分22.5分)听下面5段对话或独白,每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中,选出最佳选项,并标在试卷的相应位置。

听每段对话或独白前,你都有时间来阅读各个小题,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。

2013-2014学年高二下学期期末英语试卷

2013-2014学年高二下学期期末英语试卷

2013-2014学年高二下学期期末英语试卷第Ⅰ卷(选择题共115分)第一部分听力 (共两节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。

每段对话后有一个小题,从题中所给的A、B、C 三个选项中选出最佳选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题.每段对话仅读一遍。

例:How much is the shirt?A.£19.15.B.£9.15.C.£9.18.答案是B.1.What does the man like about the play?A.The story.B.The ending.C.The actor.2. Which place are the speakers trying to find?A.hotel.B.bank.C.restaurant.3.At what time will the two speakers meet?A.5:20.B.5:l0.C.4:40.4.What will the man do?A.Change the plan.B.Wait for a phone call.C.Sort things out.5.What does the woman want to do?A.See a film with the man.B.Offer the mall some help.C.Listen to some great music.第二节(共1 5小题:每小题1.5分,满分22.5分)听下面5段对话。

每段对话后有几个小题,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。

听每段对话前,你将有时间阅读各个小题,每小题5秒钟:听完后,各小题给出5秒钟的作答时间。

每段对话读两遍。

听第6段材料,回答第6、7题。

6.Where is Ben?A.In the kitchen.B.At school.C.In the park.7.What will the children do in the afternoon?A.Help set the table.B.Have a party.C.Do their homework.听第7段材料,回答第8、9题。

2013-2014学年高二下学期期末考试政治试题(含答案)

2013-2014学年高二下学期期末考试政治试题(含答案)

2013-2014学年高二下学期期末考试政治试题(含答案)一、选择题:(每小题1.5分,共60分)1.物联网是在互联网基础上进行信息交换和通信的一种网络,是物物相连的互联网。

小王同学通过“物联网”购买到了自己称心如意的学习用品。

这一过程反映了“物联网”的使用()①丰富了商品交换的形式和手段②方便了消费者购物并减少了现金使用③减少了商品的价值量④促进了商品所有权和使用权的分离A.①②B.③④C.①③D.②④2.右图是某商品的需求曲线(P表示商品价格,Q表示商品需求量)。

依据这一图示商品生产者应该()A.减少生产该商品的社会必要劳动时间B.增加生产该商品的个别劳动时间C.在该商品价格上升时,增加其互补品的生产D.在该商品价格上升时,增加其替代品的生产3.近年来,现代都市中出现了一类富有浓厚时代气息的特殊人群——“拼族”,“拼族”中出现了各种“拼消费”,“拼消费”让我们感受到什么是现代模式的“精打细算”:“拼车”“拼饭”甚至“拼房”。

“拼车”可以节约50%以上的车费,“拼饭”可以品尝几倍于自己餐费的美味,等等。

这种时尚() ①有助于发扬勤俭节约的传统美德②有助于节约资源,提高消费的科学性③是每一个消费者追求的目标④不利于我国消费品市场的发展A.①②B.②③C.①②③D.①②④4.我国不断增强非公有制经济和小企业的活力和竞争力,放宽市场准入,保护民间投资合法权益。

国家重视非公有制经济发展是因为()A.非公有制经济是社会主义经济的重要组成部分B.非公有制经济是促进生产力发展的重要力量C.非公有制经济拥有比公有制经济更多的数量D.非公有制经济更具有抵御金融危机的能力5.在复杂的国际背景下,中国企业应尽快实现由“中国制造”到“中国创造”的转变。

要实现这一转变,企业应该()①降低劳动力成本②转变经济发展方式③提高自主创新能力④促进产品结构优化升级A.①②③B.①②④C.①③④D.②③④6.就业是民生之本。

国家采取各种措施扩大就业,给社会经济发展带来重大影响。

2013-2014学年下学期 期末高二化学试卷(含答案)

2013-2014学年下学期 期末高二化学试卷(含答案)

2013-2014学年下学期期末高二化学试卷(含答案)时量:6 0分钟;总分:100分。

相对原子质量:H—1,C-12,O—16一、选择题(本题有25小题,每小题只有一个正确答案,请将答案序号填入答题栏内。

每小题2分,共50分)151.葡萄糖作为营养剂供给人体能量,在人体内发生主要的反应是A.氧化反应B.取代反应C.加成反应D.聚合反应2.下列物质中的主要成分不属于糖类的是A.棉花B.木材C.豆油D.小麦3.变质的油脂有难闻的哈喇味,这是因为发生了A.氧化反应B.加成反应C.取代反应D.水解反应4.用酒精消毒的原理是A.溶解作用B.变性作用C.盐析作用 D. 还原作用5.蛋白质溶液分别作如下处理后仍不失去生理作用的是A.高温加热B.紫外线照射C.加硫酸钠溶液D.加福尔马林6.缺铁会引起下列哪些症状A.侏儒症B.骨质疏松症C.甲亢D.贫血7.关于维生素C下列说法中,错误的是A.维生素C的分子式是C6H8O6 B.维生素C能增强对传染病的抵抗力C.维生素C分子具有较强的还原性D.人体所需的维生素C主要来自肉类食品8.对食物的酸、碱性判断正确的是A.西瓜是酸性食物B.猪肉是碱性食物C.奶油是酸性食物D.大米碱性食物9.酱油是一种常用的食品添加剂,它属于食品添加剂中的A.着色剂B.防腐剂C.调味剂D.营养强化剂10.阿司匹林又名乙酰水杨酸,推断它不应具有的性质A.与乙酸发生酯化反应B.与金属钠反应C.与NaOH溶液反应D.与乙醇发生酯化反应11.长期吸食或注射毒品会危及人体健康,下列各组中都属于毒品的是A.冰毒、黄连素B.海洛因、黄连素C.大麻、摇头丸D.黄曲霉素、尼古丁12.制造焊锡时,把铅加入锡的主要原因是A.增加抗腐蚀能力B.增加强度C.降低熔点D.增加延展性13.用铜锌合金制成假金元宝欺骗行人事件屡有发生。

下列不易区别其真伪的方法是A.测定密度B.放入硝酸中C.放入盐酸中D.观察外观14.为了防止轮船的船体的腐蚀,应该在船壳下水线位置嵌入一定数量的A.铜片B.锌片C.碳棒D.银片15.钢铁发生吸氧腐蚀的时候,发生还原反应的电极方程式是A.Fe-2e-==Fe2+ B.2H++2e-==H2 ↑C.4OH--4e-==2H2O+O2↑ D.2H2O+O2+4e-==4OH-16.下列各组物质的主要成分都是硅酸盐的是A.石英玻璃B.光学玻璃C.半导体材料D.陶器和瓷器17.下列物质中,属于人造纤维的是A.腈纶毛线B.兔毛毛线C.光导纤维D.粘胶纤维18.下列物质中,不属于当前空气质量报告中所包含的物质的是A.二氧化氮B.二氧化碳C.二氧化硫D.一氧化碳19.为减少大气污染,许多城市推广清洁燃料,目前使用的清洁燃料主要有两类:一类是压缩天然气(CNG),另一类是液化石油气。

传 2013-2014学年度第二学期期末考试高二英语试卷

传 2013-2014学年度第二学期期末考试高二英语试卷

2013-2014学年度第二学期期末考试高二年级英语试题Ⅰ.听力(共20小题,每小题1分,共20分)第一节1. What is the possible relationship between the two speakers?A. Father and daughterB. Doctor and patientC. Teacher andstudent2. What does the woman mean?A. Practice has helped the manB. Her skills are perfect.C. Her mother is a good player3. What does the man mean ?A. He didn’t see a large number of movies .B. He doesn’t like old movies.C. He saw more movies than the woman did.4. Who painted the picture?A. Ann.B. PeterC. Somebody else5. What will the man do next ?A. Do the cleaningB. Do his homeworkC. Somebody else第二节听第6段材料6. Where does the conversation probably take place ?A. In a furniture storeB. In a supermarket.C. In the man’s house7. What will the woman do next?A. Show the man another table.B. Give the man her business cardC. Deliver what the man has bought听第7段材料8. What sill the woman do this Saturday afternoon?A. Go swimmingB. See a filmC. Have a meeting9. When will the two speakers go out for dinner together?A. On Friday eveningB. On Saturday eveningC. On Sundayafternoon听第8段材料10. Where didn’t the man go to in Scotland?A. To Edinburgh.B. To St. AndrewsC. To the Highlands11. What was the weather like when the man in Scotland?A. Quite good.B. Very wetC. Very poor12. How many people went to Scotland with the man?A. OneB. TwoC. Three听第9段材料13. Why does the woman move?A. Because she has got a new job.B. Because she hates her old neighbors.C. Because she wants to live in the city center.14. What does the woman think of the restaurant ?A. It’s terrible.B. It’s excellentC. It’s acceptable15. What does the woman’s neighborhood have ?A. Good restaurantsB. A sports centerC. A cinema16. What is the possible relationship between the two speakers?A. Boyfriend and girlfriendB. friendsC. Neighbors听第10段材料17. How long did the speaker spend in traveling around China?A. Three daysB. Three weeksC. Three months18. What did the speaker think of Hong Kong?A. RelaxingB. QuietC. Noisy19. How many places are mentioned in the passage?A. ThreeB. FourC. Five20. How were the people on tour with the speaker?A. FriendlyB. NiceC. Unfriendly第二部分:阅读理解(共20小题;每小题2分,共40分)第一节 (共15小题;每小题2分,满分30分)AMillions of girls grow up with the hope of becoming a famous singer. Some even win local talent competitions as children, but only a few such early successes and dreams turn into reality. Jessica Andrews is one of the few whose dreams have come true.Andrews, first taste of success came at the age of 10. She won a talent competition in her home town of Huntingdon, Tennessee, singing I Will Always Love You, originally sung by Whitney Houston. Houston's version of the song appeared on The Bodyguard sound track, which happened to be the first album Andrews ever bought.Within two years, talk of Andrews had spread to Nashville and caught the attention of producer Byron Gallimore, whose credits include work with Tim McGraw, Faith Hill, and Jo Dee Messina. With Gallimore signed on to produce, Andrews soon had a recording contract (合同)with Dream Works' Nashville label. Andrews' professional career was launched with 1999's Heart Shaped World, recorded when she was 14 years old. The album included the country hit I Will Be There For You, which also appeared on The Prince Of Egypt. She followed up the release of the album by touring as a support act for such country superstars as Faith Hill and Trisha Y earwood.With the release of 2001's Who I Am, Andrews became a star in her own right. The album was certified (证明)gold for sales of 500,000 copies. Andrews returned in April 2003 with Now, an album that she promised would show a new side of the young artist. "This album has a very different feeling for me," she said. "It's a lot more personal and there's a confidence that wasn't quite there on the first two. I feel especially connected to this group of songs."21. What's the meaning of the underlined word “launched" in the fourth paragraph?A. Aimed.B. Sent.C. Started.D. Set.22. Which of the following statements is WRONG according to the passage?A. The Bodyguard was the first album Andrews ever bought.B. After Andrews sang Who I Am, she became a star in her own right.C. I Will Always Love Y ou was originally sung by Whitney Houston.D. Now expresses a new feeling of Andrews.23. Which of the following may NOT be Andrews' album?A. Now.B. Heart Shaped World.C. The Prince of Egypt.D. Who I Am24. Which of the following is the best title of the passage?A. Jessica Andrews' LifeB. Jessica Andrews' DreamC. Jessica Andrews' SongsD. Jessica Andrews' Success as a SingerBOne year, my school report made my parents angry. On Christmas Eve, all the presents were stolen, along with our TV. My parents told me that there were no presents because Santa was very angry with my behavior over the past year. The next year on Christmas Eve I slept downstairs with a plastic sword waiting for Santa to make sure that he didn't steal the new TV. The next morning, when I woke up, I saw Santa standing there. As soon as I saw that there were no presents, I grabbed my plastic sword and ran at him, shouting angrily: "THIEF! THIEF!"JackWhen I was young, we always had a specific room for the Christmas tree. My mom never really liked the location, so one year she moved the tree into another room. I was convinced that Santa would not know where the tree was and would get lost in our house. I was worried that he would be mad and put me on the "bad" list and would not give me any gifts because he couldn't find the tree. I came up with the idea to make signs leading from the fireplace to the tree. They said things like: "Tree this way" or "Santa, put the gifts over here." When my big brother saw them he began to laugh his head off.LucyDoes everyone remember going to the mall and sitting on Santa’s lap to have his picture taken at Christmas time?Well, I used to think that if I did that, Santa would get mad because he would have to go all around the world and give every kid the chance to have his picture taken with him. Of course his lap would hurt and he would be very fired. I thought he might keep a copy of the picture and that would be how he decided who would be on his naughty list.My mom couldn't get me onto Santa's lap until she made him promise I wouldn't end up on his naughty list.Lydia25. Which of the following would be the best title for the passage?A. Belief in SantaB. The Excitement on ChristmasC. Christmas GiftsD. Christmas Celebration26. The real reason why Jack's TV was taken away is that ______________.A. his parents were too carelessB. his parents thought he had watched too much TVC. Santa Claus was not satisfied with Jack’s behaviorD. Santa gave the TV to another child as a present27. Which of the following is NOT the reason why Lucy didn't want the tree to be moved?A. Santa would not know where the tree was.B. Santa would be angry and would not give her any gifts.C. Her big brother might laugh at her.D. Santa might think she was a "bad" child.CMUMBAI, India —The children in their party clothes on the stage were very excited when they received the award. And the two of them said, "It’s unbelievable!"Nine-year-old, Rubina Ali, and Azharuddin Ismail, 10, were living a very different life and obviously loving every minute of it. The two, some of the child stars of the Oscar-winning Slum dog Millionaire(《贫民窟的百万富翁》)movie, know the Indian slums very well. That was where they grew up, and it is where they will return at the end of their Hollywood dream trip.But before going back home, there was an interview with the host, Ryan Seacrest. During the interview they smiled and repeated their disbelief in what was happening to them. To their surprise, their movie won first place in the Oscars. When the two received the award, it was late morning in the children’s home city of Mumbai, where family, friends and many fellow residents of the slums watched the result from Hollywood."I don’t really know what the Oscars are," Rubina’s mother said. "I’m just glad my daughter looks happy, though she told me she missed Indian food.""Our children lead a dog’s life," Rubina’s mother said, pointing out the rubbish everywhere, the open drains (下水道) and the lack of education opportunities.In a few days they will be back in Mumbai and back in the slums which aretheir home. Fortunately, according to media reports, the movie’s director, Danny Boyle, has promised to help the children chosen from the slum and make sure they will go to a proper school.The two don’t need to worry about their daily lives because of the Oscar success of Slum dog Millionaire.But the poverty and lack of opportunity —the central theme of the movie—is always all around.28. Which of the following is NOT true about the two children?A. They were both excited about receiving the award.B. They had been having a difficult life in India.C. They were interviewed before they went back home.D. They were the only two child stars in the movie, Slum dog Millionaire.29. What can we infer from the text?A. The two children have played in other movies before.B. Rinoms’s mother also went to the Hollywood.C. Rubina may not get used to the American food.D. They will travel to other countries before returning home.30. What will happen to the two children after they return to India?A. They will go back to the miserable life.B. They will play in movies as famous actors.C. They will leave school to learn acting.D. They will have a better education.31. According to the author, the value of the movie is that ________.A. it has been given an Oscar AwardB. it has made the two children famousC. it has become popular all over the worldD. its central theme has become known to the publicDThere were more than 3billlion passenger pigeons—a number equal to 24 to 40 percent of the total bird population in the United States, making it perhaps the most abundant bird in the world. Even as late as 1870 when their numbers had already become smaller, a flock believed to be 1 mile wide and 320 miles (about 515 kilometers) long was seen near Cincinnati.Sadly the abundance of passenger pigeons may have been their undoing.Where the birds were most abundant, people believed there was an ever-lasting supply and killed them by the thousands, Commercial hunters attracted them to small clearings with grain, waited until pigeons had settled to feed, then threw large nets over them, taking hundreds at a time. The birds were shipped to large cities and sold in restaurants.By the closing decades of the 19th century ,the hardwood forests where passenger pigeons nested had been damaged by American’s need for wood, which scattered (驱散) the flocks and forced the birds to go farther north, where cold temperatures and storms contributed to their decline. Soon the great flocks were gone, never to be seen again.In 1897, the state of Michigan passed a law prohibiting the killing of passenger pigeons but by then, no sizable flocks had been seen in the state for 10 years. The last confirmed wi pigeon in the United States was shot by a boy in Pike County, Ohio, in 1900. For a time , a few birds survived under human care. The last of them, known affectionately as Martha, died at the Cincinnati Zoological Garden on September 1, 1914.32. In the 18th and early 19teh centuries, passenger pigeons____.A. were the biggest bird in the worldB. lived mainly in the south of AmericaC. did great harm to the natural environmentD. were the largest bird population in the Us33. The underlined word “ undoing” probably refers to the pigeons’ ____.A. escapeB. ruinC. liberationD. evolution34. What was the main reason for people to kill passenger pigeons?A. To seek pleasure.B. To save other birds.C. To make money.D. To protect crops.35. What can we infer about the law passed in Michigan?A. It was ignored by the public.B. It was declared too late.C. It was unfair.D. It was strict.第三部分英语知识运用第一节完形填空(共20小题;每小题1分,满分20分)As a general rule, all forms of activity lead to boredom when they are performed on a routine(常规)basis. As a matter of fact, we can see this 36 at work inpeople of all 37 . For example, on Christmas morning, children are excited about 38 with their new toys. But their 39 soon wears off and by January those 40 toys can be found put away in the basement. The world is full of 41 stamp albums and unfinished models, each standing as a monument to someone’s 42 interest. When parents bring home a pet, their child 43 bathes it and brushes its fur. Within a short time, however, the 44 of caring for the animal is handed over to the parents. Adolescents enter high school with great 45 but are soon looking forward to 46 . The same is true of the young adults going to college. And then, how many 47 , who now complain (抱怨) about the long drives to work, 48 drove for hours at a time when they first 49 their driver’s license (执照)? Before people retire, they usually 50 to do a lot of 51 things, which they never had 52 to do while working. But 53 after retirement , the golfing, the fishing, the reading and all of the other pastimes become as boring as the jobs they 54 . And , like the child in January, they go searching for new 55 .36. A. principle B. habit C. weaker D. power37. A. parties B. races C. countries D. ages38. A. working B. living C. playing D. going39. A. confidence B. interest C. anxiety D. sorrow40. A. same B. extra C. funny D. expensive41. A. well-organized B. colorfully-printed C. newly- collected D. half-filled42. A. broad B. passing C. different D. main43. A. silently B. impatiently C. gladly D. worriedly44. A. promise B. burden C. right D. game45. A. courage B. calmness C. confusion D. excitement46. A. graduation B. independence C. responsibility D. success47. A. children B. students C. adults D. retirees48. A. carefully B. eagerly C. nervously D. bravely49. A. required B. obtained C. noticed D. discovered50. A. need B. learn C. start D. plan51. A. great B. strong C. difficult D. correct52.A. time B. money C. skills D. knowledge53. A. only B. well C. even D. soon.54. A. lost B. chose C. left D. quit55. A. pets B. toys C. friends D. colleagues七选五 (共5小题;每小题2分,满分l0分) 将答案填涂在答题卡上ForgivenessTo forgive is a virtue, but no one has ever said it is easy. When someone has deeply hurt you, it can be extremely difficult to let go of your hate. However, forgiveness is possible, and it can be surprisingly beneficial to your physical and mental health. People who forgive show less sadness, anger and stress and more hopefulness, according to a recent research._____56_______ Try the following steps:Calm yourself. ______57_______ Y ou can take a couple of breaths and think of something that gives you pleasure: a beautiful scene in nature, or someone you love.Don’t wait for an apology. Many times the person who hurt you does not intend to apologize. They may have wanted to hurt you or they just don’t see things the same way. _____58_______ Keep in mind that forgiveness does not necessarily mean becoming friends again with the person who upset you.Take the control away from your offender(冒犯者). Rethinking about your hurt gives power to the person who causes you pain. Instead of focusing on your wounded feelings, learn to look for the love, beauty and kindness around you._____59______ If you understand your offender, you may realize that he or she was acting out of unawareness, fear, and even love. Y ou may want to write a letter to yourself from your offender’s point of view.Don’t forget to forgive yourself. _____60______ But it can rob you of your self-confidence if you don’t do it.A. Why should you forgive?B. How should you start to forgive?C. Recognize the benefits of forgiveness.D. Try to see things from your offender’s angle.E. For some people, forgiving themselves is the biggest challenge.F. To make your anger die away, try a simple stress-management technique.G. If you wait for people to apologize, you could be waiting an awfully long time.第三部分英语知识运用阅读下面材料,在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。

2013-2014学年度下学期期末高二年级英语试卷

2013-2014学年度下学期期末高二年级英语试卷

高二英语试卷时间:120分钟总分:150分2014.6第一卷(选择题满分115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)1. How many ripe peaches has the man picked?A. 6.B. 8.C. 10.2. Why did the woman go to the Black Forest?A. To see a new flower.B. To go hiking.C. To pick mushrooms.3. Where does the conversation take place?A. At a bank.B. At a hospital.C. At a school.4. What does the woman mean?A. She isn't feeling very well.B. She wants to ask for a sick leave.C. She wants her dad to take her to the hospital.5. What are the speakers talking about?A. An airplane.B. A person.C. A ship.第二节(共15小题;每小题1.5分,满分22.5分)听第6段材料,回答第6至8题。

6. Where does the conversation most probably take place?A. At a hotel.B. In a room.C. On the way home.7.What is the man doing in the conversation?A. Teaching.B. Dating.C. Suggesting.8. What will the speakers do next?A. Take a walk.B. Breathe some fresh air.C. Listen to American country music. 听第7段材料,回答第9至11题。

2013-2014学年度第二学期期末考试(含答案)高 二 年 级 英 语 学 科 试 题

2013-2014学年度第二学期期末考试(含答案)高 二 年 级 英 语 学 科 试 题

2013-2014学年度第二学期期末考试(含答案)高二年级英语学科试题(考试时间:120分钟)本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。

满分150分,用时120分钟。

第I卷(选择题共115分)注意事项:1. 答题前, 考生在答题卡上务必用直径0.5 毫米黑色墨水签字笔将自己的姓名、准考证号填写清楚,并贴好条形码。

请认真核准条形码上的准考证号、姓名。

2. 每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。

如需改动,用橡皮擦干净后,再选涂其他答案标号。

在试题卷上作答无效。

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)1.Why does the woman say no?A. Linda is waiting for themB. Linda is having lunch outsideC. Linda has had her lunch already2. How about the woman‟s house?A. Bigger than Allen‟sB. Bigger than Mary‟sC. Smaller than Mary‟s3. What does the woman mean?A. Going there by themselvesB. Asking someone for help in finding the wayC. Not parking the car according to the map4. What does the man mean?A. She should refuse to do him a favorB. Jason will not help her with her TVC. She should give Jason a hand5. What does the man want to do?A. He‟d like to stop for a breakB. He actually has no choice21世纪教育网C. He has to keep on with the job第二节(共15小题;每小题1.5分, 满分22. 5分)21世纪教育网6. When did Steve first plan to get back?A. Either on Friday evening or Sunday eveningB. Either on Friday morning or Sunday afternoonC. Either on Friday evening or Sunday morning7. What party is held on Saturday morning?A. Steve‟s birthday partyB. Paula‟s birthday partyC. The woman‟s birthday party8. When will Steve probably return at last?A. Surely on Friday morningB. Maybe on Friday eveningC. Of course on Friday evening9. What are the speakers talking about?A. A football game they saw the night beforeB. TV programs they saw the night beforeC. A film they have just seen10. What did the man probably do last night?A. He watched football gameB. He saw a filmC. He worked11. How much of the film did the woman see?A. Part of the filmB. The end of the filmC. The whole of the film12. What does the man take besides Morning Post?A. New YorkersB. N ewsweekC. New Scientist13. What‟s the price of Morning Post?A. Two dollars and fifty centsB. One dollarC. Three dollars and fifty14. What‟s New Yorkers?A. A magazineB. A pressC. A book15. Where does the conversation probably take place?A. On the streetB. At a camera shopC. At the woman‟s house16. Why can‟t the woman come over?A. She has a research projectB. She doesn‟t know the man‟s sister very wellC. She has to go to a graduation17. What can you learn from the conversation?A. The woman has the same interest as the man‟s sisterB. The woman shows no interest in what the man has told herC. The woman doesn‟t like to make friends with the man‟s sister18. What kind of house is Foulsham Houae?A. An old farm houseB. A large house for people to come to listen to its storyC. A hours with a history of nearly two hundred years19. Which of the following is true?A. The house has a room for four cars at the back of the houseB. There is a parking lot behind the houseC. The road behind the house is wide enough for 4 cars to go20. What can we infer according to the passage?A. Harvey wants some money to make the house meet today‟s needs21世纪教育网B. Harvey wants people to know the history of the houseC. Harvey wants to sell the house第二部分:英语知识应用(共两节,满分45分)第一节单项填空(共15小题;每小题1分,满分15分)从A,B,C.D四个选项中,选出可以填入空白处的最佳选项。

湖北省部分重点中学2013—2014学年度下学期高二期末考试

湖北省部分重点中学2013—2014学年度下学期高二期末考试

湖北省部分重点中学2013—2014学年度下学期高二期末考试数学理科试卷参考答案一.选择题题号 1 2 3 4 5 6 7 8 9 10 答案ABBDBBBCBC二.填空题11.(1,10);12.72 ;13.35; 14.2; 15.5, 230 三.解答题 16.解:(1)由2cos(B -C)-1=4cosBcosC ,得 2(cosBcosC +sinBsinC)-1=4cosBcosC , 即2(cosBcosC-sinBsinC)=-1,亦即2cos(B +C)=-1, ∴21cos =A3,0ππ=∴<<A A(2) a =7,A =π3, 由面积公式,得12bc sin π3=332,即bc =6.①由余弦定理,得b 2+c 2-2c b cos π3=7,c 2+b 2-bc =7.②由②变形得(b +c )2-3bc=7, (b +c )2=25,故b +c =5.17.(1)“从这18名同学中随机选出两名,两人来自于同一个班”记作事件A ,则222246352182()9C C C C P A C +++==. ………………………………(5分) (2)ξ的所有可能取值为0,1,2.∵21421891(0)153C P C ξ===,1141421856(1)153C C P C ξ===,242186(2)153C P C ξ===,∴ξ的分布列为:ξ0 1 2 P91153561536153∴915664()0121531531539E ξ=⨯+⨯+⨯=. ………………………………(12分) 18 (1)解:由()211122,1+=+-=-且a d a d a 得 40==或d d ,又数列{}n a 递增,所以4=d 45∴=-n a n ………………………………(3分) 当n ≥2时, n b =T n -T n-1=b n-1-b n ,211=-n n b b ∴数列{}n b 是首项为1,公比为21的等比数列.∴nn b ⎪⎪⎭⎫⎝⎛=21………………………………(5分)452n nn c -=………………………………(6分) (2)由题意,知311223122222--=+++++L n n n n na a a a a S .所以231137494522222----=+++++L n n nn n S , ① 234111374945 222222+---=+++++L n n n n n S . ② ①-②,得132254)212121(42121+--++++-=n n n n S 11254211)211(41421+-----⨯+-=n n n 123423++-=n n ,所以nn n S 2343+-=. ………………………………………………………12分 19解:(Ⅰ)∵DE ⊥平面ABCD , ∴DE ⊥AC ,∵ABCD 是正方形, ∴AC ⊥BD , ∴AC ⊥平面BDE .……………………………………………………………(4分) (Ⅱ)∵DE ⊥平面ABCD ,∴∠EBD 就是BE 与平面ABCD 所成的角,即∠EBD=60°.∴EDDB=3.由AD=3,得DE=36,AF=36. 如图,分别以DA ,DC ,DE 为x 轴,y 轴,z 轴, 建立空间直角坐标系D-xyz .则A (3,0,0),F (3,0,6),E (0,0,36),B(3,3,0),C (0,3,0),∴→BF=(0,-3,6),→EF=(3,0,-26), 设平面BEF 的一个法向量为n =(x ,y ,z ),则 ⎩⎪⎨⎪⎧n ·→BF=0,n ·→EF=0。

2013-2014学年下学期期末高二 物理试卷

2013-2014学年下学期期末高二 物理试卷

2013-2014学年下学期期末高二物理试卷说明:本试题分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,第Ⅰ卷为第1页至第7页,第Ⅱ卷为第7页至第8页。

考试时间90分钟。

试卷满分100分。

第Ⅰ卷(选择题,共75分)一、选择题(本题包括25小题,每题3分,共75分。

每题给出的四个选项中有一个或多个是正确的,将正确的选项填涂在答题卡上,选错的不得分,漏选的得2分。

)1.下列说法正确的是( )A .线圈中磁通量变化越大,线圈中产生的感应电动势一定越大B .线圈中的磁通量越大,线圈中产生的感应电动势一定越大C .线圈中磁通量变化得越快,线圈中产生的感应电动势越大D .线圈处在磁场越强的位置,线圈中产生的感应电动势一定越大2.穿过闭合回路的磁通量Φ随时间t 变化的图像分别如图甲、乙、丙、丁所示,下列关于回路中产生的感应电动势的论述,正确的是( )A .图甲中回路产生的感应电动势恒定不变B .图乙中回路产生的感应电动势一直在变大C .图丙中回路在0~t0时间内产生的感应电动势大于t0~2t0时间内产生的感应电动势D .图丁中回路产生的感应电动势可能恒定不变3.矩形线圈在匀强磁场中绕垂直于磁场方向的轴匀速转动,下列说法中正确的是( )A .在中性面时,通过线圈的磁通量最大B .在中性面时,感应电动势最大C .穿过线圈的磁通量为零时,感应电动势也为零D .穿过线圈的磁通量为零时,磁通量的变化率也为零4.如图所示,半径为r 的n 匝圆形线圈套在边长为L 的正方形abcd 之外,匀强磁场仅在正方形区域内且垂直穿过正方形所在平面,当磁感应强度以ΔB Δt的变化率均匀变化时,线圈中产生感应电动势大小为( )A .πr2·ΔB Δt B .L2·ΔB ΔtC .nπr2·ΔB ΔtD .nL2·ΔB Δt5.如图所示,让闭合线圈由位置1通过一个匀强磁场区域运动到位置2,下列说法中正确的是( )A .线圈进入匀强磁场区域的过程中,线圈中有感应电流,而且进入时的速度越大,感应电流越大B .整个线圈在匀强磁场中匀速运动时,线圈中有感应电流,而且感应电流是恒定的C .整个线圈在匀强磁场中加速运动时,线圈中有感应电流,而且感应电流越来越大D .线圈穿出匀强磁场区域的过程中,线圈中有感应电流,而且感应电流越来越大6.如图所示,一根条形磁铁从左向右靠近闭合金属环的过程中,环中的感应电流(自左向右看)( )A .沿顺时针方向B .先沿顺时针方向后沿逆时针方向C .沿逆时针方向D .先沿逆时针方向后沿顺时针方向7.如图甲所示,长直导线与闭合线框位于同一平面内,长直导线中的电流i 随时间t 的变化关系如图乙所示.在0~T 2时间内,长直导线中电流向上,则线框中感应电流的方向与所受安培力情况是( )A .0~T 时间内,线框中感应电流方向为顺时针方向B .0~T 时间内,线框中感应电流方向为先顺时针方向后逆时针方向C .0~T 时间内,线框受安培力的合力向左D .0~T 2时间内,线框受安培力的合力向右,T 2~T 时间内,线框受安培力的合力向左8.如图所示,光滑固定导轨M 、N 水平放置,两根导体棒P 、Q 平行放于导轨上,形成一个闭合回路,当一条形磁铁从高处下落接近回路时( )A .P 、Q 将互相靠拢B .P 、Q 将互相远离C .磁铁的加速度仍为gD .磁铁的加速度小于g9.两根足够长的光滑导轨竖直放置,间距为L ,底端接阻值为R 的电阻.将质量为m 的金属棒悬挂在一个固定的轻弹簧下端,金属棒和导轨接触良好,导轨所在平面与磁感应强度为B 的匀强磁场垂直,如图2所示.除电阻R 外其余电阻不计.现将金属棒从弹簧原长位置由静止释放,则( )A .释放瞬间金属棒的加速度等于重力加速度gB. 金属棒向下运动时,流过电阻R 的电流方向为a →bC .金属棒的速度为v 时,所受的安培力大小为F =B2L2v RD .电阻R 上产生的总热量等于金属棒重力势能的减少10.如图所示,MN 、PQ 是水平放置的间距为L 的平行金属导轨,置于磁感应强度为B 、方向垂直导轨所在平面向里的匀强磁场中,M 、P 间接有一阻值为R 的电阻.一根与导轨接触良好、有效阻值为R 的金属导线ab 垂直导轨放置,并在水平外力F 的作用下以速度v 向右匀速运动,不计导轨电阻,则( )A .通过电阻R 的电流方向为P →R →MB .a 、b 两点间的电压为BLvC .a 端电势比b 端高D .外力F 做的功等于电阻R 上产生的焦耳热11.如图所示,从匀强磁场中把不发生形变的矩形线圈匀速拉出磁场区,如果两次拉出的速度之比为1∶2,则两次线圈所受外力大小之比F1∶F2、线圈发热之比Q1∶Q2、通过线圈截面的电量q1∶q2之比分别为( )A .F1∶F2=2∶1,Q1∶Q2=2∶1,q1∶q2=2∶1B .F1∶F2=1∶2,Q1∶Q2=1∶2,q1∶q2=1∶1C .F1∶F2=1∶2,Q1∶Q2=1∶2,q1∶q2=1∶2D .F1∶F2=1∶1,Q1∶Q2=1∶1,q1∶q2=1∶112.两块水平放置的金属板间的距离为d ,用导线与一个n 匝线圈相连,线圈电阻为r ,线圈中有竖直方向的磁场,电阻R 与金属板连接,其余电阻均不计.如图所示,两板间有一个质量为m 、电荷量为q 的带正电的油滴恰好处于静止状态,则线圈中的磁感应强度B 的变化情况和磁通量的变化率分别是( )A .磁感应强度B 竖直向上且正在增强,ΔΦΔt =mgd nqB .磁感应强度B 竖直向下且正在增强,ΔΦΔt =mgd nqC .磁感应强度B 竖直向上且正在减弱,ΔΦΔt =mgd(R +r)nqRD .磁感应强度B 竖直向下且正在减弱,ΔΦΔt =mgd(R +r)nqR13.如图所示,水平光滑的金属框架的左端连接一个电阻R ,有一金属杆在外力F 的作用下沿框架向右由静止开始做匀加速直线运动,匀强磁场方向竖直向下,轨道与金属杆的电阻不计并接触良好,则能反映外力F 随时间t 变化规律的图象是图中的( )A B C D14.如下图所示的电路为演示自感现象的实验电路,若闭合开关S ,电流达到稳定后通过线圈L 的电流为I1,通过小灯泡L2的电流为I2,小灯泡L2处于正常发光状态,则下列说法中正确的是( )A .S 闭合瞬间,L2灯缓慢变亮,L1灯立即变亮B.S闭合瞬间,L1灯缓慢变亮,L2灯立即变亮C.S断开瞬间,小灯泡L2中的电流由I1逐渐减为零,方向与I2相反D.S断开瞬间,小灯泡L2中的电流由I1逐渐减为零,方向不变15.调压变压器是一种自耦变压器,它的构造如上图所示.线圈AB绕在一个圆环形的铁芯上,AB间加上正弦交流电压U,移动滑动触头P的位置,就可以调节输出电压.在输出端连接了滑动变阻器R和理想交流电流表,变阻器的滑动触头为Q,则()A.保持P的位置不动,将Q向下移动时,电流表的读数变大B.保持P的位置不动,将Q向下移动时,电流表的读数变小C.保持Q的位置不动,将P沿逆时针方向移动时,电流表的读数变大D.保持Q的位置不动,将P沿逆时针方向移动时,电流表的读数变小16.交流发电机正常工作时,电动势的变化规律为tEemωsin=.如果把发电机转子的转速减小一半,并且把电枢线圈的匝数增加一倍,其他条件不变,则()A.只是电动势的最大值增加一倍B.电动势的最大值和周期都增加一倍C.电动势的最大值和周期都减小一半D.频率减小一半,周期增加一倍17.如图甲所示为一种调光台灯电路示意图,它通过双向可控硅电子器件实现了无级调节亮度.给该台灯接220 V的正弦交流电后,加在台灯两端的电压如图乙所示,则此时交流电压表的示数为()A.220 VB.110 VC.110 2 VD.55 2 V18.将阻值为5 Ω的电阻接到内阻不计的交流电源上,该电源电动势e随时间t变化的规律如图所示,下列说法正确的是()A.电路中交变电流的频率为0.25 HzB.通过电阻的电流为 2 AC.电阻消耗的电功率为2.5 WD.电阻两端的电压是5 V19.一交流电流的图象如图所示,由图可知()A.用电流表测该电流其示数为10AB.该交流电流的频率为100HzC.该交流电流通过10Ω电阻时,电阻消耗的电功率为2000 WD.该交流电流瞬时值表达式为i=102sin200πt20.关于交流电的有效值U和最大值Um,下列说法中正确的是()A .任何形式的交流电都具有U =Um/2的关系B .正弦式交流电具有U =Um/2的关系C .照明电压220 V ,动力电压380 V 指的都是最大值D .交流电压表和交流电流表测的都是最大值21.某小型水电站的电能输送示意图如图所示.发电机的输出电压为220 V ,输电线总电阻为r ,升压变压器原副线圈匝数分别为n1、n2.降压变压器原副线圈匝数分别为n3、n4(变压器均为理想变压器).要使额定电压为220 V 的用电器正常工作,则( )①n2n1>n3n4 ②n2n1<n3n4③升压变压器的输出电压等于降压变压器的输入电压④升压变压器的输出功率大于降压变压器的输入功率A .①③B .①④C .②③D .②④22.一台小型发电机产生的电动势随时间变化的正弦规律图象如图甲所示.已知发电机线圈内阻为5 Ω,外接一只电阻为95 Ω的灯泡,如图乙所示,则( )甲 乙A .电压表的示数为220 VB .电路中的电流方向每秒钟改变50次C .灯泡实际消耗的功率为484 WD .发电机线圈内阻每秒钟产生的焦耳热为24.2 J23.如图甲所示,理想变压器原、副线圈的匝数比为10∶1,电阻R =22 Ω,各电表均为理想电表.原线圈输入电压的变化规律如图乙所示.下列说法不正确的是( )甲 乙A .该输入电压的频率为50 HzB .电压表的示数为22 VC .电流表的示数是1 AD .电阻R 消耗的电功率是22 W24.如图所示,理想变压器的原副线圈匝数比n1:n2=1:10,副线圈与阻值R =20Ω的电阻相连.原线圈两端所加的电压u =sin20πt (V ),则( )A .交流电压表的示数为VB .副线圈输出交流电的频率为10HzC .电阻R 上消耗的电功率为2kWD .原线圈中电流的最大值为100A 25.某发电站采用高压输电向外输送电能.若输送的总功率为P0,输电电压为U ,输电导线的总电阻为R.则下列说法正确的是( )A .输电线上的电流I =U RB .输电线上的电流I =P0UC .输电线上损失的功率P =(P0U)2R D .输电线上损失的功率P =U2R第Ⅱ卷(非选择题,共25分)注意事项:1.第Ⅱ卷所有题目的答案考生须用黑色签字笔答在答题纸上,考试结束后将答题卡和答题纸一并上交。

2013-2014学年度下学期期末高二年级化学答案

2013-2014学年度下学期期末高二年级化学答案

12013-2014学年度下学期期末高二年级化学答案一、选择题(本题包括16小题,每小题3分,共48分。

每小题只有一个选项 符合题意)题号 1 2 3 4 5 6 7 8 答案 C D C B C C A C 题号 9 10 11 12 13 14 15 16 答案DBABBADD二、非选择题(本题包括4小题,共52分) 17、(每空2分,共14分)I (1)10.0g (2) ①⑤④②③ (3) ADE Ⅱ(1)106 g/mol (2)22.4bc/(aN A ) (3)10.4 500 18、(每空2分,共12分) (1)⑥ ⑤(2)2,3-二甲基戊烷 CH 3CH 2CH(CH 2CH 3)CH 2CH 3 C 5H 10 CH 2=C —CH 2—CH 3 CH 3—C=CH —CH 3 CH 3—CH —CH=CH 2CH 3 CH 3 CH 319、(12分)(1) I (1分)冷凝回流,提高反应物的转化率(2分)(2) 碳酸氢钠溶液(1分,其他合理答案均可)、溴水(1分,其他合理答案均可) CH 3CH 2CH= CH 2+Br 2→BrCH 2CHBrCH 2CH 3(2分) (3)②插上带橡皮塞的温度计(1分)④接通冷凝管的冷凝水,使冷水从d 处流入(1分) ⑤迅速升高温度至101.6℃(1分)(4) 70%(2分)20.(14分)(1)羧基 (1分)(2分) 对苯二甲酸(2分)(2)④(1分)(2分)(3)(2分)(4)取反应①后的混合液少许,向其中加入稀HNO 3至酸性,滴加AgNO 3溶液,若生成白色沉淀, 则A 中含氯原子;若生成淡黄色沉淀,则A 中含溴原子。

(2分) (5)16 (2分)。

2013-2014学年高二下学期期末考试 英语试题

2013-2014学年高二下学期期末考试 英语试题

2013-2014学年高二下学期期末考试英语试题第一部分听力理解(共20小题;每小题1分,满分20分)第一节听下面5段对话。

每段对话后有一小题,从题中所给的ABC三个选项中选出最佳选项,并标在试卷相应位置。

每段对话读一遍How much are two shirtsA.20 dollars.B. 18 dollars.C. 19 dollars.2.What does the woman mean?A. The table doesn't need to be cleaned.B. The bookshelf also needs cleaning.C. There is no time for cleaning.3.What does the woman think the man should do?A. Care about his health.B. Finish the report first.C. Go to see the doctor.4.Where are the two speakers talking?A. In a carB. On the streetC. At the airport.Who is the man?A waiter B. A driver C. A customer第二节听下面5段对话或独白。

每段对话后有一小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷相应位置。

每段对话读两遍。

听第6段材料,回答6,7题6.Why does the woman call the ma n?To say sorry to him.To borrow some books.To ask for help.7.What is Ben doing?Waiting for Amy.Cooking in the kitchen.21世纪教育网Carrying books downstairs.听第7段材料,回答8至10题8.What is the weather like?A. CloudyB. SnowyC. Rainy9.What's the most relationship between the two speakers?A. Teacher and student.B. Husband and wife.C. Friends.10.How will they go home?A. On foot.B. By taxi.C. By bus.听第8段材料,回答11至13题11.How many oil painting did Picasso paint ?A 9,000B 1,885C 7,08912.What may the man do this afternoon?A. Go to the city museumB. Read a book about PicassoC. See a movie about Picasso13.What can w e know from this conservation?A. The man is good at painting.B. Picasso is Jennifer's favorite artist.C. The man likes Picasso's paintings a lot.听9段材料,回答14至17题14.When will the woman's flight leave?A. At 8:20 amB. At 9:00 amC. At 10:20 am15.Why doesn't the woman take her own camera with her?A. Because there is something wrong with it..B. Because it is lost.C. Because she has lent it to someone.16.Who will take woman to the airport?A. Mary.B. The woman's aunt.C. The man17.What will the woman do?A. Borrow a camera from the man.B. Ask Mary to lend her a camera.C. Ask her aunt to bring her a camera.听第10段材料,回答18至20题What does the speaker do?A. A student.B. A teacher.C. A radio reporter.What is the activity?To take care of small trees.To plant trees near west mountain.C. To plant trees in NO.2 Senior High School.What can we learn from the monologue?Experience is required .No equipment will be provided.Advice will be given by experts.第二部分英语知识运用(共两节,满分35分)第一节单项填空(共15小题;每小题1分,满分15分)请认真阅读下面各题,从题中所给的A、B、C、D四个选项中,选出最佳选项。

2013—2014学年高二下学期期末考试英语(含答案)

2013—2014学年高二下学期期末考试英语(含答案)

2013—2014学年高二下学期期末考试英语(含答案)第一部分:听力(共两节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。

每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1.How does the man come here?A. By bus.B. By taxi.C. By car.2.W hy isn’t Helen present?A. She forgot to come.B. She changed her decision.C. She wasn’t invited.3.What’s the probable relationship between the two speakers?A. Husband and wife.B. Mother and son.C. Doctor and patient.4.What’s the man’s job?A. A shop assistant.B. A tailor.C. A salesman.5.What does the man mean?A. He can’t go to the cinema.B. He can go to the cinema on Saturday morning.C. He can go to the cinema on Saturday evening.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。

每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

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。

每段对话或独白读两遍。

请听第6段材料,回答第6、7题。

2013-2014学年下学期期末高二物理试卷(含 答案)

2013-2014学年下学期期末高二物理试卷(含 答案)

NN2013-2014学年下学期期末高二物理试卷(含答案) 考试时间:90分钟 (一)必考题:一、选择题(共10个小题 每题4分共40分 不定向选择,选错不得分,选对但不全得2分)1、人在火车车厢里立定跳远,在下列情况中,如果人用力相同,相对车厢来说,正确的说法是 ( )A.在静止的火车里向前跳,跳得较远B.在匀速直线运动的火车里,向车行进的方向跳,跳得较远C.在匀速直线运动的火车里,向车行进的反方向跳,跳得较远D.在以上三种情况里人跳的距离均相同2、如图为质量相等的两个质点B A 、在同一直线上运动的v t =图像,由图可知 ( )(A )在t 时刻两个质点在同一位置 (B )在t 时刻两个质点速度相等(C )在0t -时间内质点B 比质点A 位移大 (D )在0t -时间内合外力对两个质点做功相等3、物块静止在固定的斜面上,分别按图示的方向对物块施加大小相等的力F ,A 中F 垂直于斜面向上。

B 中F 垂直于斜面向下,C 中F 竖直向上,D 中F 竖直向下,施力后物块仍然静止,则物块所受的静摩擦力增大的是( )4、如图4-76所示,竖直放置的光滑圆环,半径R=20厘米,在环上套有一个质量为m 的小球,若圆环以ω=10弧度/秒的角速度转动(g=10m /s2),则角θ大小为( ) A .30° B .45° C .60° D .90°5、发射地球同步卫星时,先将卫星发射至近地圆轨道1,然后经点火,使其沿椭圆轨道2运行,最后再次点火,将卫星送入同步圆轨道3.轨道1、2相切于Q 点,轨道2、3相切于P 点(图4-28).则当卫星分别在1、2、3轨道上正常运行时,以下说法正确的是( ) A .卫星在轨道3上的速率大于在轨道1上的速率 B .卫星在轨道3上的角速度小于在轨道1上的角速度C .卫星在轨道1上经过Q 点时的加速度大于它在轨道2上经过Q 点时的加速度D .卫星在轨道2上经过P 点时的加速度等于它在轨道3上经过P 点时的加速度ABC D6、如图5所示,用大小相等、方向相反,并在同一水平面上的力N 挤压相同的木板,木板中间夹着两块相同的砖,砖和木板均保持静止,则( ) AB .NC .板、砖D .两砖7、如图2-7-12所示,质量为M 的木块放在光滑的水平面上,质量为m 的子弹以速度v0沿水平射中木块,并最终留在木块中与木块一起以速度v 运动.已知当子弹相对木块静止时,木块前进距离L ,子弹进入木块的深度为s.若木块对子弹的阻力f 视为恒定,则下列关系式中正确的是 ( )A .fL=21Mv2B .f s=21mv2C .f s=21mv02-21(M +m )v2D .f (L +s )=21mv02-21mv28、一个离地面高度为h 的人造地球卫星,质量为m ,已知地球半径为R0,地球质量为M ,地球表面重力加速度为g ,那么关于求人造卫星运行速度的以下关系式:判断正确的是A .只有①④正确B .只有③正确C .只有②③正确D .只有②正确9、某人在一星球上以速率v 竖直上抛一物,经 t 秒物体落回手中.已知星球半径为R ,则他至少以多大的速率沿星球表面发射一物,才能使物体不落回星球( )10、如图所示,M 为固定在水平桌面上的有缺口的方形木块,abcd 为43圆周的光滑轨道,a为轨道的最高点,de 面水平且有一定长度。

2013—2014学年度高二下学期期末考试数学试卷(文)

2013—2014学年度高二下学期期末考试数学试卷(文)

2013—2014学年度高二下学期期末考试 数学试卷(文)选择题(本大题共12小题,每小题5分,共60分)1.已知全集U =R ,集合{}11,02x M x x N x x +⎧⎫=≥=>⎨⎬-⎩⎭,则M N =( )A. [1,)+∞B. (2,)+∞C.(1,2]-D.[1,2)-2.在△ABC 中,角A ,B ,C 所对的边分别为,,a b c,若045a b B ===,则角A 等于().A . 030 B. 060 C .0120 D .0060120或3.如图所示,边长为2的正方形中有一封闭曲线围成的阴影区域,在正方形中随 机撒一粒豆子,它落在阴影区域内的概率为23,则阴影区域的面积为( ).A.43B.83C.23D .无法计算4. 已知tan 2α=,则2sin sin cos ααα-的值是( )A.25B.25-C.-2D. 25. 设向量a =(1,cos θ)与b =(-1,2cos θ)垂直,则cos 2θ等于 ( )A.2 B.12 C .0 D.-16.给定函数①12y x =,②12log (1)y x =+,③1y x =-,④12x y +=,其中在区间(0,1)上单调递减的函数的序号是( )A .①②B .②③C .③④D .①④7.如图是函数()sin()(0,0,)2f x A x A πωϕωϕ=+>><其中的图象的一部分, 则( ).xA.1,23πωϕ==B.1,26πωϕ==C.2,3πωϕ==D.2,6πωϕ==8.已知()f x是定义在R上的偶函数,并满足1(2)()f xf x+=-,当01x≤≤时,()2f x x=-,则( 6.5)f-=()A.12B.23C.32D.139.函数)(xf的定义域为区间[,]a b,导函数)('xf在[,]a b内的图象如图所示,则函数)(xf在区间[,]a b内有极小值点()A.1个B.2个C.3个D.4个10.函数2sin cos()44y x xππ⎛⎫=++⎪⎝⎭图象的一个对称轴方程是( )A.π=8xB.π=4xC.π=2xD.34π11. 若,x y满足约束条件0,40,0,x yx yx+≥⎧⎪-+≥⎨⎪≥⎩则3z x y=-()A.有最小值-8,最大值0 B.有最小值-4,最大值0 C.有最小值-4,无最大值 D.有最大值-4,无最小值12.若0,022ππαβ<<-<<,1cos()43πα+=,cos()423πβ-=,则cos()2βα+=().A.33B.-33 C.539D.-69二、填空题(共4个小题,每小题5分,共20分)13.35cos()3π-的值是.14. 函数-1()=-2xf x a恒过定点.15. 函数2223()(5)m mf x m m x--=+-是幂函数,且在(0,)x∈+∞上是减函数,则实数m=.16. 函数)(coscossin2sin22Rxxxxxy∈--=的单调递增区间为.三、解答题17.(10 分)在极坐标系中,求直线sin()24πρθ+=被圆ρ=4截得的弦长。

2013—2014学年度第二学期期末统一考试高二语文科试卷

2013—2014学年度第二学期期末统一考试高二语文科试卷

2013—2014学年度第二学期期末统一考试高二语文科试卷本试卷共8页,22小题,满分150分,考试时间150分钟。

注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学校、年级、考号填写在答题卷密封线内,并将自己的姓名和考生号、试室号、座位号填写在答题卡上,用2B铅笔将考生号、试室号填涂在答题卡相应位置上。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案。

答案不能答在试卷上。

3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答卷各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答卷和答题卡的整洁。

考试结束后,将答卷、答题卡一并交回。

一、本大题4小题,每小题3分,共12分。

1.下列词语中加点字的注音全都正确的一组是()(3分)A.戏谑(xuè)木讷(nà)聒噪(ɡuō)恪尽职守(kè)B.裨益(pì)附和(hè)悭吝(qiān)刚愎自用(bì)C.载体(zài)回溯(sù)熨贴(yù)咬文嚼字(jiáo)D.觇视(chān)跻身(jī)感喟(kuì)自怨自艾(ài)2.下列各句中,加点词语使用恰当的一项是()(3分)A.新中国成立60年来首次有歼击机女飞行员受阅,因此备受各界关注。

10月1日,中国首批歼击机女飞行员果然不孚众望,驾机零误差飞过天安门广场。

B.公园里摆放的各种盆栽菊花,姹紫嫣红,微风一吹,更是风姿绰约,意兴阑珊。

C.近几年,黄河、岷江的部分河段多次出现断流现象,面对这江河日下的情况,人们开始冷静地思考环保问题。

D.法国著名建筑师克雷甫刚出巴黎美术学院的校门,在建筑和数学两方面就相继崭露头角。

2013-2014学年高二下学期期末考试 英语试题(含答案)

2013-2014学年高二下学期期末考试 英语试题(含答案)

2013-2014学年高二下学期期末考试英语试题(含答案)第一部分:听力理解SECTION AConversation 11. Why does the man love Sundays?A He can watch sports on TV.B He can play basketballC He needn’t do any cleaning.2. What does the woman expect the man to do?A. To have a good rest.B. To watch a game on TVC. To help with housework. Conversation 23. When will the plane take off?A. At 9:00.B. At 9:15.C. At 9:30.4. What will the man do after the conversation?A. Fasten his seat belt.B. Take his seat.C. Find a proper seat.Conversation 35. What is the most probable relationship between the two speakers?A. Mother and son.B. Teacher and student.C. Doctor and patient.6. Which is NOT true according to the conversation?A. The woman is afraid of being laughed at.B. The woman makes mistakes when she opens her mouth.C. The woman enjoys practicing spoken English.Conversation 47. How long has the man moved here ?A. For about two days.B. For about half a month.C. For about one month.8. What do we know about the man?A. He has many childrenB. His daughter is seven.C. He does paper work.9. What does the woman most probably do?A. She is a teacher.B. She is a nurse.C. She is a policewoman. Conversation 510. Why does the woman advise the man to cut down on cokes ?A. Because the coke is a soft drink.B. Because of the caffeine in cokes.C. Because the sugar and caffeine are not good.11. How does the man feel if he goes without a coke every day?A. Trembling and tenseB. Tired and excited.C. Shaky and tired.12. What relation is the woman to the man ?A. His colleagueB. His friendC. His wife.Conversation 613. What are the two speakers talking about ?A. Christmas giftB. Christmas stress.C. The origin of Christmas.14. How soon will the Christmas Day come?A. In a monthB. In two weeks.C. In a week.15. How much do the man’s family spend on Christmas?A. About $1,100B. About $250C. About $150SECTION BTips for staying at a youth hostel(招待所) in _16_____ city第二部分:英语知识运用(共两节,满分45分)第一节:单项填空(共15小题;每小题1分,满分15)21. She was happy to devote herself _____________gymnastics.A. forB. aboutC. inD. to22. -----The last one ___________the office turns off all the lights and locks the door.-------Agreed !A. leavesB. to leaveC. leavingD. left23.New Zealand ________________the Maori tribe.A. is the home toB. is home toC. settle down inD. is a home of24. Now let me tell you the work I have been doing with them. My job with the UN is not paid, but voluntary and as I said ______________, I mainly visit countries where the UN has programs to help people.A. beforeB. althoughC. evenD. in case 25.Though ______ money, their parents managed to send them to university.A. lackedB. lacking ofC. lackingD. lacked in26. Could it be in the restaurant _________ you had dinner with me yesterday _______ you left behind your keys and wallet?A. that; whereB. where; thatC. which; thatD. that; when27.______, he decided to write again.A. Not having received a replyB. Having not received a replyC. Not having a replyD. Not received a reply28. I will appreciate ____ if you can carry the luggage for me.A. itB. thatC. theseD. them29. Asked if he could come over and have dinner with us, ______.A. no response was madeB. nothing was said by him.C. Tom nodded his headD. we heard him say yes30.The terminal building put into use one month ago is _______________poor condition.A. onB. inC. underD. with31. We don’t doubt ____ he will succeed in the research work.A. thatB. whetherC. howD. what32. ___________ the city lies the famous beautiful mountain.A. 20 miles southeast toB. To 20 miles southeast ofC. Southeast 20 miles toD. To southeast 20 miles of33. People feel shocked that a university student _______________do that to a woman.A. mustB. mayC. canD. should34. I like the after-school activities__________ students can develop friendship.A. thatB. whoseC. whenD. where35.I ________ in the countryside for 20 years , but now I’ve got used to the city life now.A. liveB. have livedC. have been livingD. lived完型填空A businessman was on a business trip to Tokyo. One day he went to 36 some gifts for his employees (雇员) back in his country. He 37 a supermarket. A lady smiled and welcomed him. He was very touched, and felt good .Because he was not able to 38 the warmth of her smile, he was watching her as he was 39 . She was giving the same 40 to all the people who walked into the supermarket.The businessman starte d thinking if she hated doing the same thing. So he asked, “My dear lady, are you 41 of doing this job?” The lady smiled and said, “No, sir, I have 42 here for the last 10 years and I love my job.” The businessman was surprised and asked, “Why have you stayed here for ten years, and why do you like your job 43 much?” The lady said, “Because I am doing something good for my 44 .” The businessman found this interesting. He asked, “Why?” The lady said, “As most of our customers are 45 , they spend foreign currency here. So our country has a lot of money and becomes richer. People who are happy with our service will 46 _____ more often and spend more money in our country.”Surprised by her 47 , the businessman thanked her. After returning to his own country he worked hard to introduce the same attitude (态度) to his workers, and today his company is one of the best companies in the world.36. A. buy B. order C. make D. pay37. A. opened B. cleaned C. entered D. checked38. A. require B. enjoy C. hide D. forget39. A. traveling B. working C. singing D. shopping40. A. feeling B. smile C. warmth D. watching41. A. fond B. tired C. proud D. afraid42. A. stood B. learned C. worked D. lived43. A. so B. very C. even D. enough44. A. home B. country C. supermarket D. boss45. A. millionaires B. managers C. strangers D. foreigners46. A. praise B. visit C. talk D. save47. A. action B. service C. attitude D. help完成短文(一空一词)If you’ve set your eyes on that new Apple iPhone 4, maybe it’s time to get rid of your old sell phone, 48, don’t throw your regular cell phone away because it contains a lot of personal information and data. 49 the device accidentally comes into the hands of a bad person, all this data could be misused. Moreover, cell phones also contain some materials that is 50 to the environment, so you should handle them correctly.To deal with an old cell phone, first of all, you must remove all personal information from51 device. Once you’ve removed your personal data, you can 52 resell the cell phone toa dealer(商人) 53 deals with used cell phones, or you can sell it to someone willing to buy it from you. 54 is better to contact a relevant charity and get them to help you. The charity will donate your cell phone to someone 55 need of a cell phone, or recycle the phone or some parts of it。

2013-2014学年高二下学期期末考试英语试题(含答案)

2013-2014学年高二下学期期末考试英语试题(含答案)

2013-2014学年高二下学期期末考试英语试题(含答案)I 语言知识及应用(共两节, 满分45分)第一节完形填空(共15小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从1~15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

Once, long ago, there was a man who traveled from Persia to India on foot. He had 1 been to India before. When he arrived at a village, he happened upon a fruit stand. In that village, fruit was quite expensive because of the lack of water. The man was looking around at the fruits when he __2__ a big basket of some very red, very long fruit. It was the cheapest fruit in the shop, not expensive at all. __3__ the man walked up to the counter and asked: “How __4__ per kilo?” And the shopkeeper said: “Two rupees.” Two rupees in India is __5__. The man thought to himself: “What a __6__ !” So he bought a whole kilogram of the fruit and began to eat it. But after he tried a few pieces, he screamed: “Oh, my God!” His eyes watered, his mouth burned, and his face turned __7__ . He coughed and choked and gasped for breath. But despite his __8__, he continued to stuff the fruits into his mouth! Onlookers __9__ their heads and laughed. One man yelled: “You‟re crazy, man! Those are chilies! People use them as a condiment (佐料). You don‟t just eat them by the handful like that; they‟re not fruit!” But the man replied: “No, I can‟t __10__ !I paid money for them, and now I‟ll eat them. It‟s my money!”.You probably think this man was pretty __11__ , right? Nevertheless, I bet you or someone you know makes the same mistake on a daily basis. People invest money, time and effort into a relationship, business or job. Even when experience tells them that it‟s not __12__, and they know there‟s little hope of improvement, they still __13__ because they don‟t want to waste the initial investment. But this is illogical. It is no different than being the man who continued eating chilies because he didn‟t want to waste the money he‟d paid for them.Losing something is difficult, but it is important to __14__ the loss and move on. __15__ you‟ll just keep burning your mouth on hot chilies.1. A. often B. never C. sometimes D. seldom2. A. noticed B. watched C. recognized D. selected3. A. Yet B. So C. Still D. Besides4. A. large B. long C. many D. much5. A. something B. nothing C. anything D. everything6. A. bargain B. trade C. business D. regret7. A. pale B. red C. purple D. yellow8. A. fear B. warning C. confusion D. pain9. A. shook B. raised C. lowered D. nodded10. A. believe B. stop C. agree D. confuse11. A. impolite B. humorous C. awkward D. stupid12. A. changing B. working C. leaving D. helping13. A. refuse B. worry C. ignore D. continue14. A. remember B. improve C. recognize D. protect15. A. Also B. However C. Thus D. Otherwise第二节语法填空(共10小题;每小题1.5分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的或者括号中词语的正确形式填空,并将答案填写在答题卡标号为16~25的相应位置上。

高中英语真题-2013-2014学年高二英语下学期期末考试试题

高中英语真题-2013-2014学年高二英语下学期期末考试试题

高中英语真题:2013-2014学年高二英语下学期期末考试试题第Ⅰ卷选择题(共100分)第一部分:听力(共二节, 满分30分)第一节 (共 5 小题; 每小题 1.5 分, 满分 7.5分)听下面 5 段对话, 每段对话后有一个小题, 从题中所给的A、B、C三个选项中选出最佳选项, 并标在试卷的相应位置。

听完每段对话后, 你都有 10 秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1.What time does the train leave?A. At 12: 00 .B. At 11:45 .C. At 11:30.2.What is the man going to do tonight?A. To a birthday party.B. To visit Jane.C. To the theatre.3.How much can the woman save if she buys three shirts?A. 3 dollars.B. 6 dollars.C. 5 dollars.4.Who is coming to visit the family?A. The man’s mother.B. The woman’s mother.C. The child’s mother.5. How many radios will Jessie have in his family?A. Two.B. Three.C. Four.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, 从每题所给的A、 B、C三个选项中选出最佳选项, 并标在试卷的相应位置。

听每段对话或独白前, 你将有时间阅读各个小题, 每小题5秒钟; 听完后, 各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料, 回答第6~7题。

6.Who can speak French?A. The man.B. The woman.C. Neither.7.What does the man think of the job that the woman offers?A. Disappointing.B. Boring.C. Interesting.听第7段材料, 回答第8~10题。

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上海市高二年级第二学期期末数学试卷1一、填空题(本大题满分60分)本大题共有12题,每题5分,考生应在答题纸上相应编号的空格内直接填写结果. 1.计算:2(12)(32)1i i i+-++= 2.ϑ∈(π,23π),直线l :ϑsin x +ϑcos y +1=0的倾角α= 3.一条渐近线方程3x +4y =0,且经过点是(4,6)的双曲线标准方程是 4. 已知复数1z =3+4i ,2z =t +i ,且21z z ⋅是实数,则实数t 等于 5.过抛物线y 2=2px(p>0)的焦点,倾斜角为45°的直线截得的线段长为6. 若方程15222=-+-ky k x 表示双曲线,则实数k 的取值范围是 7.在平面直角坐标系xOy 中,曲线261y x x =-+与坐标轴的交点都在圆C 上,则圆C 的方程为8. 已知命题:椭圆252x +92y =1与双曲线112x -52y =1的焦距相等.试将此命题推广到一般情形,使已知命题成为推广后命题的一个特例:9.已知a R ∈,且2k παπ≠+,k Z ∈设直线:tan l y x m α=+,其中0m ≠, 给出下列结论:①l 的倾斜角为arctan(tan )α;②l 的方向向量与向量(cos ,sin )a αα=共线;③l 与直线sin cos 0x y n αα-+=()n m ≠一定平行;④若04a π<<,则l 与y x =直线的夹角为4πα-;⑤若4k παπ≠+,k Z ∈,与l 关于直线y x =对称的直线l '与l 互相垂直.其中真命题的编号是 (写出所有真命题的编号)10.已知抛物线22(0)y px p =>上一点(1,)(0)M m m >到其焦点的距离为5,双曲线221x y a -=的左顶点为A ,若双曲线的一条渐近线与直线AM 平行,则实数a 的值是11.若点P 在曲线C 1:28y x =上,点Q 在曲线C 2:(x -2)2+y 2=1上,点O 为坐标原点,则||||PO PQ 的最大值是12.已知A 、B 是椭圆22221(0)x y a b a b +=>>和双曲线 22221(0,0)x y a b a b-=>>的公共顶点。

P 是双曲线上的动点, M 是椭圆上的动点(P 、M 都异于A 、B ),且满足()AP BP AM BM λ+=+,其中R λ∈,设直线AP 、BP 、AM 、BM 的斜率分别记为1k 、2k 、3k 、4k , 125k k +=,则34k k +=________二、选择题(本大题满分16分)本大题共有4题,每题4分.每题只有一个正确答案,选择正确答案的字母代号并按照要求填涂在答题纸的相应位置.13.给定四条曲线①x 2+y 2=25;②14922=+y x ;③1422=+y x ;④1422=+y x . 其中与直线x+y-5=0仅有一个交点的曲线是( )A.①②③B.②③④C.①②④D.①③④14.命题甲:“双曲线C 的方程为22a x -22by =1(a >0,b >0)”,命题乙:“双曲线C 的渐近线方程为y =±x ab”,那么甲是乙的( ) A.充分不必要条件 B.必要不充分条件 C.充要条件 D.非充分非必要条件. 15.设1z ,2z 为复数,则下列四个结论中正确的是( )A.若22120z z +>,则2212z z >-;B.若22120z z +=,则120z z ==;C.12z z -=D.11z z -是纯虚数或零.16.在实数集R 上定义运算⊕:y y x y x -++=⊕1222,则满足x y y x ⊕=⊕的实数对)(y x ,在平面直角坐标系内对应点的轨迹是( )A.一个圆;B.双曲线;C.一条直线;D.两条直线.三、解答题(本大题满分74分)本大题共有5题,解答下列各题必须在答题纸上与题号对应的区域写出必要的步骤.17.(本题满分12分)设复数()()i m m m m z 2322lg 22+++--=,当m 取何实数时? (1)z 是纯虚数; (2)z 对应的点位于复平面的第二象限18. (本题满分14分)在平面直角坐标系xoy 中,经过点(且斜率为k 的直线l 与椭圆2212x y +=有两个不同的交点P Q 和.设椭圆与x 轴正半轴,y 轴正半轴的交点分别为,A B ,是否存在常数k ,使得向量OP OQ AB +与共线?如果存在,求k 的值;如果不存在,请说明理由.19.(本题满分15分) 本题共有3个小题,第1小题满分3分,第2小题满分4分,第3小题满分8分.在直角坐标系xoy 中,点P 到两点(0,3-)、(0,3)的距离之和等于4,设点P 的轨迹为C,直线y=kx +1与C 交于A 、B 两点. (1)写出C 的方程;(2)若OB OA ⊥,求k 的值;(3)若点A 在第一象限,证明当k>0时,恒有||||OB OA >.20.(本题满分15分) 本题共有2个小题,第1小题满分5分,第2小题满分10分. 已知动圆C 过点A(-2,0),且与圆()642:22=+-y x M 相内切.(1)求动圆C 的圆心的轨迹方程;(2)设直线:l y kx m =+(其中,)k m Z ∈与(1)中所求轨迹交于不同两点B,D 与双曲线112422=-y x 交于不同两点E,F,问是否存在直线l ,使得向量DF BE +=0,若存在,指出这样的直线有多少条?若不存在,请说明理由.21.(本题满分18分) 本题共有3个小题,第1小题满分4分,第2小题满分7分,第3小题满分7分.若直线l :0=++c my x 与抛物线x y 22=交于A 、B 两点,O 点是坐标原点。

(1)当m=-1,c=-2时,求证:OA ⊥OB ;(2)若OA ⊥OB ,求证:直线l 恒过定点;并求出这个定点坐标。

(3)当OA ⊥OB 时,试问△OAB 的外接圆与抛物线的准线位置关系如何?证明你的结论。

上海市2012学高二年级第二学期期末数学试卷(满分150分,答题时间120分钟) 2012.06 一、填空题(本大题满分60分)本大题共有12题,每题5分,考生应在答题纸上相应编号的空格内直接填写结果.1.8+3i 2. 2π-ϑ 3.272y -482x =1.4.345.4p6.k<2或k>57.22(3)(1)9x y -+-=8. 椭圆22a x +22b y =1与双曲线22c x -22dy =1)(2222d c b a +=-的焦距相等9.②④ 10.1912.5-二、选择题(本大题满分16分)本大题共有4题,每题4分.每题只有一个正确答案,选择正确答案的字母代号并按照要求填涂在答题纸的相应位置. 13.D 14. A 15. D 16. D三、解答题(本大题满分74分)本大题共有5题,解答下列各题必须在答题纸上与题号对应的区域写出必要的步骤.17.(本题满分12分)(1)z 是纯虚数当且仅当()⎪⎩⎪⎨⎧≠++=--023022lg 22m m m m ,解得,3=m(2)由()⎪⎩⎪⎨⎧>++<--023022lg 22m m m m⎩⎨⎧->-<<<+-<<-⇒12331,311m m m m 或或 所以当<<+-<<-m m 31311或3时,z 对应的点位于复平面的第二象限。

18. 设1122(,),(,),P x y Q x y 则1212(,),OP OQ x x y y +=++由两方程方程,知12212x x k +=-+,又12122()12y y k x x k+=++=+,由(0,1),A B得(AB =.∴OP OQ AB +与共线等价于1212),x x y y +=+将②③代入,解得k =由2k <-k>2故不存在符合题意的常数k .19.(本题满分15分) 本题共有3个小题,第1小题满分3分,第2小题满分4分,第3小题满分8分.(1)设P(x,y),由椭圆定义可知,点P 的轨迹C 是以(0,3-),(0,3)为焦点,长半轴为2的椭圆,它的短半轴1)3(222=-=b ,故曲线C 的方程为1422=+y x . (2)设A(x 1,y 1),B(x 2,y 2),其坐标满足⎪⎩⎪⎨⎧+==+.1,1422kx y y x 消去y 并整理,得(k 2+4)x 2+2kx-3=0, 故43,42221221+-=+-=+k x x k k x x . 若⊥,即x 1x 2+y 1y 2=0. 而y 1y 2=k 2x 1x 2+k(x 1+x 2)+1,于是01424343222222121=++∙+-+-=+k k k k k y y x x ,化简,得-4k 2+1=0,所以21±=k . (3)证明: 22||||OB OA ⊥=x12+y 12-(x 22+y 22)=(x 12-x 22)+4(1-x 12-1+x 22) =-3(x 1-x 2)(x 1+x 2)4)(6221+-=k x x k d.因为A 在第一象限,故x 1>0. 由43221+-=k x x 知x 2<0,从而x 1-x 2>0.又k>0,故0||||22>-OB OA ,即在题设条件下,恒有||||OB OA >.20.(本题满分15分) 本题共有2个小题,第1小题满分5分,第2小题满分10分. (1)圆()642:22=+-y x M , 圆心M 的坐标为()0,2,半径8=R .∵R AM <=4,∴点()0,2-A 在圆M 内.设动圆C 的半径为r ,圆心为C ,依题意得CA r =,且r R CM -=, 即AM CA CM >=+8. ∴圆心C 的轨迹是中心在原点,以M A ,两点为焦点,长轴长为8的椭圆,设其方程为()012222>>=+b a by a x , 则2,4==c a .∴12222=-=c a b . ∴所求动圆C 的圆心的轨迹方程为1121622=+y x . (2)由⎪⎩⎪⎨⎧=++=.11216,22y x m kx y 消去y 化简整理得:()0484843222=-+++m kmx x k 设11(,)B x y ,22(,)D x y ,则122834km x x k+=-+.△1()()()04844348222>-+-=m k km . ①由⎪⎩⎪⎨⎧=-+=.1124,22y x m kx y 消去y 化简整理得:()01223222=----m kmx x k . 设()()4433,,,y x F y x E ,则24332kkm x x -=+,△2()()()012342222>+-+-=m k km . ②∵DF BE +=0,∴4231()()0x x x x -+-=,即1234x x x x +=+, ∴2232438k km k km -=+-.∴02=km 或2231434k k -=+-.解得0k =或0m =.当0k =时,由①、②得 3232<<-m ,∵∈m Z,,∴m 的值为2,3-- 1-,0,13,2,;当0m =,由①、②得 33<<-k ,∵∈k Z,,∴1,0,1-=k .∴满足条件的直线共有9条.21.(本题满分18分) 本题共有3个小题,第1小题满分4分,第2小题满分7分,第3小题满分7分.设A(x 1,y 1)、B(x 2,y 2),由⎩⎨⎧==++202x y c my x 得0222=++c my y 可知y 1+y 2=-2m y 1y 2=2c ∴x 1+x 2=2m 2—2c x 1x 2= c 2, (1) 当m=-1,c=-2时,x 1x 2 +y 1y 2=0 所以OA ⊥OB.(2) 当OA ⊥OB 时,x 1x 2 +y 1y 2=0 于是c 2+2c=0 ∴c=-2(c=0不合题意),此时,直线l :02=-+my x 过定点(2,0).(3)由题意AB 的中点D(就是△OAB 外接圆圆心)到原点的距离就是外接圆的半径。

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