九下二模20110414普陀区试卷

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2011年上海市普陀区中考物理二模试卷

2011年上海市普陀区中考物理二模试卷参考答案与试题解析总分：90分一、单选题（每小题2分，共16分）1．（2分）（2011•普陀区二模）如图所示的3种原子模型中，最接近于原子内部真实情况的是（）A．图①模型B．图②模型C．图③模型D．三种模型与真实情况接近程度相同【考点】原子模型PH123【难易度】容易题【分析】原子非常小，其直径大约有千万分之一毫米，是由位于原子中心的原子核和一些微小的电子组成的，这些电子绕着原子核的中心运动，就像太阳系的行星绕着太阳运行一样，因此只有氦原子的电子云模型最接近于原子内部真实情况，所以B选项正确。

【解答】B【点评】这一道题主要是考查了学生们对于原子结构的理解，需要同学们知道原子是由原子核与电子组成，这些电子是绕着原子核的中心运动，熟悉历史上提出的各种原子模型及它们的优缺点．2．（2分）（2011•普陀区二模）地震产生的次声波常对人类和建筑物造成巨大危害，这种波的特点是（）A．频率低，人耳听不到B．频率低，人耳能听到C．频率高，人耳听不到D．频率高，人耳能听到【考点】声音的产生和传播PH251【难易度】容易题【分析】频率小于20Hz(赫兹)的声波叫做次声波,人耳可听声的范围在20Hz到20000Hz之间，超出这个范围的声音，人耳是听不到的，所以次声波的频率低，人耳听不到，所以只有A选项符合题意。

【解答】A．【点评】这一道题主要是考查了学生们对于人耳可听声、超声波以及次声波的理解掌握，需要同学们知道人耳可听声的范围在20Hz到20000Hz之间，在这个范围之外人耳是听不到声音的。

3．（2分）（2013•宜昌模拟）以下关于重力方向的说法中正确的是（）A．重力方向总是垂直向下B．重力方向总是垂直于地面向下C．重力方向总是垂直于桌面向下D．重力方向总是垂直于水平面向下【考点】重力PH215【难易度】容易题【分析】物体由于地球的吸引而受到的力叫重力,所以重力的方向总是竖直向下的，或总是垂直于水平面向下，所以只有D选项符合题意．【解答】D．【点评】这一道题主要是考查了学生们对于重力的概念、方向等知识的掌握情况，需要同学们知道重力的方向是竖直向下的，指向地心．4．（2分）（2011•普陀区二模）人眼球中的晶状体相当于凸透镜，若要在视网膜上成清晰的像，眼睛离物体的距离应（）A．大于一倍焦距B．大于两倍焦距C．大于一倍焦距，小于二倍焦距D．小于一倍焦距【考点】凸透镜成像规律及其应用PH338【难易度】容易题【分析】凸透镜成像规律是指物体放在焦点之外，在凸透镜另一侧成倒立的实像，因为人眼的视网膜上要得到倒立、缩小的实像，物体在凸透镜的二倍焦距以外，所以B选项正确。

2011上海市普陀区英语二模试卷

普陀区2011年第二学期九年级第二次质量调研考试英语试卷（满分150分，考试时间100分钟）Part I ListeningI. Listen and choose the best picture.1. _________2. _________3. _________4. _________5. _________6. _________II. Listen to the dialogue and choose the best answer to the question you hear.7.A)At 11:15B) At 11:35C)At 11:45D)At 11:558.A) At a post officeB) In a flower shopC) At the bankD) At a restaurant9.A) SingaporeB) JapanC) RussiaD) Britain10.A) A managerB) A shop assistantC) A cookD)A teacher11.A) Because he can't danceB) Because he is busyC) Because he doesn't like the foodD) Because he is ill12.A) Do shoppingB) Do cleaningC) Watch football matchesD) Go to the movies13.A) At homeB)In a carC) In a coffee shopD) On a plane14.A) She likes hot weatherB) She thinks the river is beautifulC) She doesn't like to take a walkD) She'd love to join the man for a walk15.A) Next MondayB) Next TuesdayC) Next WednesdayD) Next Thursday16.A)It’ll be a sunny day tomorrowB) The woman hopes it'll be fine tomorrowC) The woman likes rainy dayD) She doesn't want to water the flowersIII. Listen to the passage and tell whether the following statements are true or false.17. The story took place at midnight.18. The doctor was watching TV when the doorbell rang.19. The man at the door told the doctor he was sick.20. The man asked the doctor to go somewhere out of town.2l. The doctor agreed to go because the place was not far.22. They finally arrived at the patient's home in the doctor's car.23. The man used the doctor's car as a taxi.IV. Listen to the dialogue and fill in the blanks.24. The man would like to buy a shirt and a ____________ of jeans.25. The woman is ____________that the man can make a good choice.26. The size of the man's jeans is ____________27. The changing room is ____________ a mirror.28. The jeans ____________ the man very well.29. The woman suggests the man buy a ____________ shirt.30. The man needs to pay ____________ yuan altogether.Part 2 Vocabulary and GrammarV. Choose the best answer31. Every time we went to the Shanghai Expo we spent _________ couple of hours there.A) aB) anC) theD) /32. Student Usually have seven classes every day _________ Monday to Friday.A) onB) inC) ofD) from33. My favourite pop group is the Backstreet Boys. I really enjoy _________ performances.A) theyB) themC) theirD) theirs34;We don't have _________information about the new company you are interested in.A) manyB) muchC) fewD) little35. Please carry these two bags for me. I'll deal with _________A) otherB) othersC) the othersD) another36. Mark says he doesn't mind _________ the office with the new comer.A) shareB) to shareC) sharingD) will share7. The actor who acted in the TV series last night became famous in his _________A) thirtyB) thirtiethC) the thirtiethD) thirties8. The Bund looks _________beautiful at night that it attracts a lot of tourists every day.A) veryB) soC) suchD) quite39. The mother takes the baby to the park every weekend _________ it's rainy or windy.A) sinceB) becauseC) unlessD) until40. He is getting fat, _________ he has decided to go to work on foot.A) soB) butC) orD) for41. Some people think online shopping makes their life _________ than before.A) easyB) easierC) easiestD) the easiest42. Don't disturb your brother. He _________ on a new computer program.A) worksB) was workingC) is workingD) has worked43. It's not good to let your pet _________ too much at a time.A) to eatB) eatingC) eatsD) eat44.3D films are not new, they first _________ in 1903.A) appearB) appearedC) have appearedD) had appeared45. I’m not sure whether this newspaper_________ once a week.A) publishB) publishesC) has publishedD) is published46. We _________stay in the theatre for over two hours because of the heavy rain.A) shouldB) couldC) had toD) ought to47. - _________ does it take to gel to Beijing by CRH train ?-Nine hours.A) How muchB) How longC) How farD) How fast48. _________enjoyable day it is!A) HowB) WhatC) What aD) What an49. Don't keep _________ when you are asked some questions in class.A) silentB) generousC) forgetfulD) private50. The ice hotel built in Canada is _________snow and ice, so it doesn't last long.A) covered withB) made up ofC) connected toD) provided with51. His ambition is_______ an engineer when he graduates from university.A) becomeB) becameC) to becomeD) becomes52. Joe cares for gardening and spends much of his spare time studying plants.Which is closest in meaning to the underlined part? _________A) teachesB) solvesC) likesD) manages53. Keep working hard and your dream will come true. Which is closest in meaning to the underlined part? ______A) be realizedB) be designedC) be createdD) be supported54. Could you please tell me _________?A) where is the new shopping mallB) where the new shopping mall isC) where was the new shopping mallD) where the new shopping mall was55. - Would you come and pick me up?-_________.A) OK. AnytimeB) Yes, pleaseC) No, thanksD) Please go ahead56. - What about going to the concert?- _________. Why don't we go to the beach instead?A) Of course not!B) Not at allC) you're right.D) I don't feel like itVI. Complete the sentences with the given words in their proper forms.57. Danny is going to be __________ next month. (eighth)58. Mum bought presents for everyone but nothing for __________. (her)59. Would you please fetch several __________ for us to cut the bread with? (knife)60. Nobody likes to make friends with __________people, (honest)61. Thank you for your__________. It is really useful to us. (suggest)62. Jack was really sorry for __________ late again. (be)63. The water in this well was seriously__________ in me storm, (pollute)64. People were all very __________ to the volunteers at the Expo . (thank)VII. Rewrite the sentences as required.65. Jane read today’s newspaper to her grandmother. (改为否定句)Jane __________ __________ today’s newspaper to her grandmother.66. Peter never spends his pocket money on snacks. (改为反义疑问句)Peter never spends his pocket money on snacks, __________ __________?67. Teenagers should learn how they should take care of themselves. (改为简单句)Teenagers should learn how __________ __________ care of themselves.68. You can take the underground to the new square. (合并为一句)You can drive your car there, too.You can __________ take the underground __________ drive your car to the new square.69. Have a diet with plenty of fruit, vegetables and rice, and you will stay healthier. (保持句意基本不变)__________ you __________ a diet with plenty of fruit, vegetables and rice, you will stay healthier.70. The last bus will arrive in two minutes. (划线提问)__________ __________ will the bus arrive?Part 3 Reading and WritingVIII. Reading comprehension.(A)Mrs. Wilson, the wife of a rich businessman, invited some friends to lunch. She wanted very much to try a new way of cooking a fish, and she was very pleased with herself when the dish was ready. As the dish was very hot, she put it near the open window to cool for a few minutes. But when she came back for it after five minutes, she was surprised to find the neighbour's cat. Chester, at the dish. Fortunately, she was just in time to stop the cat-before it was too late. That afternoon was successful and everyone enjoyed the dish very much. They talked and laughed till fouro'clock.At the end of the afternoon, when she was alone again, Mrs. Wilson felt tired but happy. She was in a chair just near the window when, through the window, she saw the neighbour's cat deadin her garden. Why, the fish dish must be bad! What would happen to her friends? She at once telephoned the family doctor for advice. The doctor told her to telephone all the visitors to meet him at the hospital as soon as they could. Finally the danger was over. Once again Mrs. Wilson was alone again. The neighbour came to see her and cried, "Oh. Mrs. Wilson! Chester is dead. She was killed by someone in a car and put in your garden."True or False71. Mrs. Wilson's husband was a rich businessman.72. Mrs. Wilson had never cooked a fish dish before.73. Mrs. Wilson put the fish dish by the window for a long time.74. Mrs. Wilson's friends didn't leave until 16:00p.m..75. Mrs. Wilson felt upset when she saw Chester's death.76. Mrs. Wilson's friends all fell ill because of the bad fish dish.77. Mrs. Wilson finally learnt the real reason for Chester's death.(B)Alfred and Mary Walker and their son, Robert, live in England. They are visiting Hong Kong on Holiday. They will send postcards home. Now read what they are writing.Dear Richard,We arrived in Hong Kong three days ago. We are having a wonderful time, but every day is very busy. We get up early and go to be d late. It’s rather tiring.Yesterday we took a bus to the Park. It was a very clear day. From the top, we saw the whole of Hong Kong. We took lots of photos. Some of them will be really good. I will buy a video camera for you because I know you want one. I'll get it tomorrow because we are going shopping.Your brother,AlfredDear Mum and Dad.We are having a lovely time in Hong Kong. Two days ago, we went to a place called Ocean Park. We saw lots of sharks and dolphins there. Robert enjoyed it very much. Today we are going to Lantau Island. We will see the huge statue of Buddha there. Tomorrow we are going shopping on Hong Kong Island.Hong Kong is very different to our hometown in England. The streets are more crowded and there is more traffic on the roads. It is noisier than at home as well, and everything is more expensive here!See you soon.Lots of love,MaryHi Dan!Hong Kong is a great city! There is so much to see and do here. We went to a great place called Ocean Park. I saw lots of tropical fish and some sharks. I also went on a roller-coaster and a cable car.I loved the roller-coaster and I went on it four times! Mum and Dad thought I was lost, but then they saw me at the top of the roller-coaster.Tomorrow will be a shopping day, the worst part of the holiday!See you soon!Your friend,RobertChoose the best answers78. The Walkers have been in Hong Kong for _________.A) three days B) two days C) a week D) five days79. Alfred is writing to his _________.A) parents B) friend C) brother D) cousin80. Richard will probably get a _________ as a present from Alfred.A) CD player B) video camera C) traveling bag D) computer81. The Walkers are going to visit _________ today.A) A) the Peak B) Ocean Park C) Lantau Island D) a shopping centre82. Dan is a friend of _________ .A) Alfred's B) Mary's C) Richard's D) Robert's83. Robert's parents thought he was lost when he _________.A) spent much time watching fish B) went on the roller-coaster four timesC) played with dolphins for a long time D) stayed in the cable car for long84. According to the passage, which of the following is not true ?A) The Walkers’ trip in Hong Kong is tiring but wonderful.B) Mary doesn’t think the prices in Hong Kong are attractiveC) Mary’s hometown is probably quiet and not very crowdedD) Robert is looking forward to going shopping in Hong Kong(C)On 26 December, 2004, more than 270,000 people lost their lives in a tsunami. As the 2004 Tsunami hit areas with tourists, people from over 50 85 were among the dead. This made it a truly world disaster.The 2004 Tsunami disaster shook the world. Before it happened, most people did not even know what a tsunami was. Then in the hours and days after the first killer waves hit the coast of 13 Southeast Asian and African countries. 86 began to talk about tsunami.The 2004 Tsunami was caused by a 9.15 earthquake. The earthquake was so powerful that the ocean floor split into a 1,000 km long crack (1,000 km: the distance from Beijing to Wuhan). The two sides of this crack moved 87 about 10 metres (10 metres: the height of a four-floor building).This caused the movement of about 30 km3 of water (30 km3: the amount of water in 12 million Olympic swimming pools)!270,000 humans lost their lives in the 2004 Tsunami, but 88 , not a single animal in the Yala National Park was killed. How did the animals know the tsunami was coming? Nobody knows, but they had moved to 89 ground or climbed up hills and big trees and were saved. Scientists say that studying animal behaviour could serve as an early warning system for humans in the future.On 26 December, 2004, Tilly Smith, a 10-year-old British schoolgirl was walking along a beautiful beach in Thailand with her mother. Suddenly, she noticed that the sea was bubbling and that it was 'like a beer". Tilly remembered a school geography lesson, and 90 that a bubbling sea was a warning sign for a tsunami. Tilly got her family and 100 other people to safety before the first wave hit the beach.Natural disasters are unexpected. 91 you often hear about them and their terrible effects, you never imagine one happening to you. Neither did any of those 270,000 people. Knowledge is the only way to protect yourself.Choose the words or expressions and complete the passage.85.A) schoolsB) townsC) countriesD) families86.A) few peopleB) everyone C) no oneD) someone87.A) up and downB) from left to rightC) to the centreD) forward88.A) unluckilyB) certainlyC) amazinglyD) immediately89.A) softerB) deeperC) widerD) higher90.A) imaginedB) recognized.O) agreedD) promised91.A) AlthoughB) BecauseC) WhenD) If(D)Read the passage and Till in the blanks with proper words.Elizabeth Blackwell was born in England in 1821. Her rather gave his daughters as good education as his sons. He encouraged his daughters to learn Latin and Greek, read books, learn maths, and study science This was a very u 92 thing to do at a time when few women had any education at all. Women only learned such s 93 as music, painting, and sewing. Because of her father, Elizabeth grew up to be much more independent than most women of her time.When she was eleven, Elizabeth, and her family moved to the United States. Her father started several businesses, but he was never a 94 to do very well. When Elizabeth Blackwell was seventeen, her father died, leaving no money for his family. For several years Elizabeth taught school to help support the family. She became more and more interested in movements for women's r 95 .In the early 1800s, women could not have their own houses or money. They belonged to their fathers and brothers before getting married and l 96 they belonged to their husbands. If a woman did not marry, the only thing for her to do was to live with her parents or one of her relatives, doing housework and helping with the children in return for her food and shelter. Women were not expected to do work o 97 the home or to support themselves.Elizabeth Blackwell did not marry. She did not want to live with any of her brothers. Sheh 98 the idea of depending on anyone else. She thought and thought about how she could make a living by doing something useful.(E)"The dishes smell so good!" cried Mike. "Are most of the parents here yet? I'm so hungry."Kent looked through the door which led into the hallway. "I think Mr. Milano and Mr. Hasselbach just finished giving them the garden tour. They should be coming here in a moment."The students of Jefferson Middle School had spent all afternoon preparing for the evening meal. They did their best to change the lunchroom into a beautiful dining area for their families. The grey metal tables were hidden under brightly-colored cotton tablecloths. Each table held a small glass vase with fresh flowers from the school's garden.Only about half of the overhead lights were on. The children thought that candles would do an excellent job of creating a nice environment, but Mr. Milano said that candles were too dangerous to use in a school.As the families found their seats, Mr. Milano called Drew, Emilio, and Mike to join her at thefront of the room. "Could I have everyone's attention?" asked Mr. Milano. "I just want to take a moment to congratulate Drew, Emilio, and Mike for their wonderful idea."ano continued, "A year ago, they first came to me with the plan for starting a garden at Jefferson. They had thought through everything. Anytime I had a question about how we would make the plan work, they had an answer prepared. As you can see, they were correct. About three quarters of the food you'll be enjoying tonight came from the school garden. The students prepared the whole meal themselves."ano handed Drew, Emilio, and Mike each a box. They opened their boxes as Mr. Milano said, "As a thank-you to these students for their creative idea and hard work, they have each received a stepping-stone from the garden. Their names and the date are engraved on the stones."The three children held up their stepping-stones and smiled as the crowd clapped. "And now," said Mr. Milano, "please help yourselves to the food."Answer the questions.99. Who prepared the whole dinner?101. Where did they have their dinner?102. How did the students decorate the dinning tables?103. Were candles used at dinner time that day?104. Most of the food for the meal came from the school garden, didn't it?105. Why were Drew, Emilio, and Mike each given a special present?IX. Writing106. Writes passage of 60-80 words on the topic "The first time I...". (以“我第一次”为题写一篇60-80词的短文，标点符号不占格)Use the following points as a reference.What experience did you have?How was your experience?What did you learn from your experience?【听力文字稿】I. Listen and choose the right picture1. Jack used to work on a ship and traveled to many places.2. Jane teaches Chinese in a language school in New Zealand.3. People usually don't talk loudly when they are taking the underground.4. Look! The people over there are making a film.5. Amy has a strong desire to be a pilot in the future.6. Tony has just written another article about the underwater world.II. Listen to the dialogue and choose the best answer to the question you hear7. M: Look at the screen there. The departure time of our flight is 11:45 a. m.W: Oh, there are only twenty minutes left.Q: When will their flight leave?8. M: Excuse me, how much is the flower in that brown pot?W: 60 yuan. If you take 2, you only need to pay 50 for each.Q: Where does the dialogue probably take place?9. M: I'm going to visit Singapore during the summer holidays. What about you?W: I can't decide yet. My husband will have a meeting in Russia. Maybe I will go with him.Q: Which country is the man going to visit?10. M: Mary, would you please come to my office for a while after class?W: All right, Mr. Ford.Q: What is the man?11. W: Are you going to Lucy's party?M: No, I don't think so. Well, everyone is going to dance. I can't dance at all.Q: Why is the boy not going to Lucy's party?12. M: It's Friday at last! What's your plan for tomorrow?W: Do some shopping and cleaning. What about you?M: There'll be two important football matches on TV. I won't miss them.Q: What's the man going to do tomorrow?13. M: How far do we have to drive?W: Not very far, but let's stop to have a cup of coffee and take a short rest.Q: Where are the two speakers?14. M: What a hot day! Would you like to join us for a walk along the river?W: Gook idea! It must be cooler by the river.Q: What does the girl mean?15. M: Excuse me, is Mr. Black in his office?W: Sorry. He is in Beijing on business. He won't be back until next Wednesday.M: I see. Then may I meet him next Thursday?W: Well, I think you'd better call again next Tuesday.Q: When will Mr. Black come back?16. M: The weather forecast says it's going to rain tomorrow.W: Really? I hope so.M: What do you mean by saying that? You like rainy days?W: No, I don't. But if it's rainy, I won't have to water the flowers in the garden.Q: What can we learn from the dialogue?III. Listen to the passage and tell whether the following statements are true or falseIt was already midnight. A young American doctor was sleeping when suddenly his doorbell began to ring. He had to get up, put on his coat and go downstairs.When he opened the door, he saw a man standing with a hat in his hand. "How do you do?"said the man, "Can you come at once to a place out of town? It's quite far but you have a car and I can show you the way. ""Certainly," said the doctor, "I'm quite ready, I can come at once. " After a few minutes the car was standing at the front door, the man got into the doctor's car, and they drove off.They drove on for a long time. Then the man said, "Here we are. This is my home. Now I can pay you and you can go back to town. ""I must see the patient," the doctor said, "How can I go back without seeing the patient?""There is no patient," explained the man, "Nobody is ill. I live here, you see, and I must get home from the town, mustn't I? There are no taxis this time of the night, but a doctor often makes night calls, so excuse me. Here is your money. Thank you, doctor. Good night. "IV. Listen to the dialogue and fill in the blanksW: Good afternoon, sir. What can I do for you?M: Well, I am looking for a pair of jeans and a shirt to match them.W: We have a big variety here. I'm sure you can make a good choice. Try on this pair of jeans. I think they are your size. You wear large, don't you?M: Yes, large is my size. By the way, where is the changing room?W: It's behind that mirror.M: Thank you. How do I look in the jeans? Do they make me look fat?W: No, they fit you very well. And what about the shirt, what colour do you want?M: I have no idea. Do you have any suggestions?W: Let me see, urn, I think that pink shirt will make a good match.M: But I never wear pink or red. Maybe I can try on that dark blue one.W: Dark blue looks nice on you.M: OK. I'll take the jeans and the dark blue shirt. How much are they altogether?W: 698 yuan. How would you like to pay, cash or card?M: Cash.W: OK. Here's your change.【参考答案】I. 1. G 2. F 3. A 4. C 5. D 6. BII. 7. C 8. B 9. A 10. D 11. A 12. C 13. B 14. D 15. C 16. DIII. 17. T 18. F 19. F 20. T 21. F 22. F 23. TIV. 24. pair 25. sure 26. large 27. behind 28. fit 29. pink 30. 698V. 31. A 32. D 33. C 34. B 35. C 36. C 37. D 38. B 39. C 40. A41. B 42. C 43. D 44. B 45. D 46. C 47. B 48. D 49. A 50. B51. C 52. C 53. A 54. B 55. A 56. DVI. 57.eight 58.herself 59.knives 60. dishonest 61.suggestion 62.being 63.polluted 64.thankfulVII. 65. didn't read 66. does he 67. to take 68. either, or 69. if, have 70. How soonVIII.(A) 71. T 72. F 73. F 74. T 75. T 76. F 77. T(B) 78. A 79. C 80. B 81. C 82. D 83. B 84. D(C) 85. C 86. B 87. A 88. C 89. D 90. B 91. A(D) 92. unusual 93. subjects 94. able 95. rights 96. later 97. outside 98. hated(E)99. The students of Jefferson Middle School.100. The school garden.101. In the school lunchroom.102. With brightly—colored cotton table cloths.103. No, they weren't.104. Yes, it did.105. For their creative idea and hard work.......。

2011年上海市普陀区中考二模语文试卷

普陀区2011初三语文期末质量抽查试卷一、文言文（42分）（一）、默写（18分）1.古藤老树昏鸦，。

（《天净沙·秋思》）2. ，雪尽马蹄轻。

（《观猎》）3.人生自古谁无死，。

（《过零丁洋》）4.出师一表真名世，。

（《书愤》）5.把酒临风，。

（《岳阳楼记》）6. ，死而不学则殆。

（《孔孟论学》）(二)阅读下面的诗，完成第7—8题(4分)天净沙•秋元白朴孤村落日残霞，轻烟老树寒鸦，一点飞鸿影下。

青山绿水，白草红叶黄花。

7.本曲中的“飞鸿”指的是是。

(2分)8.下列理解不恰当的一项是（）(2分)A、开篇绘出了一幅秋日黄昏图，营造出一种宁静、闲适的氛围。

B、作者选取秋天的景物，由远及近，渐显出一派色彩绚丽的秋景。

c、“青山绿水，白草红叶黄花”表现了作者对生活的热爱之情。

D、本曲表达了作者积极向上、乐观开朗的处世态度。

(三)阅读下文，完成第9—11题(8分)黄生借书说（节选）书非借不能读也。

子不闻藏书者乎？七略、四库，天子之书，然天子读书者有几？汗牛塞屋，富贵家之书，然富贵人读书者有几？其他祖父积、子孙弃者无论焉。

非独书为然，天下物皆然。

非夫人之物而强假焉，必虑人逼取，而惴惴焉摩玩之不已，曰：“今日存，明日去，吾不得而见之矣。

”若业为吾所有，必高束焉，庋藏焉，曰：“姑俟异日观”云尔。

9.本文作者是（朝代）的（人名）。

（2分）10.用现代汉语翻译下面的句子。

（3分）非独书为然，天下物皆然。

11.下列理解不正确的一项（）（3分）A、作者在本段中提出了“书非借不能读也”的观点。

B、作者列举了三个事例，证明“非独书为然，天下物皆然”。

C、作者将借书者与藏书者进行对比，分析“天下物皆然”的原因。

D、作者写《黄生借书说》一文，目的是勉励青年发奋求学。

(四)阅读下文，完成第12—15题(12分)以身居作梁鸿牧豕于．上林苑中，曾误遗火，延及他舍。

乃寻访烧者，问所失财物，悉以豕偿之。

其主犹以为．少。

鸿曰：“无他财，愿以身居作。

上海市2014初三数学普陀区二模卷(含答案)

2013学年度第二学期普陀区初三质量调研数学试卷2014.4（时间：100分钟，满分：150分）考生注意：所有答案务必按照规定在答题纸上完成，写在试卷上不给分题号一二三四总分得分一、单项选择题：（本大题共6题，每题4分，满分24分）[下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号并填涂在答题纸的相应位置上] 1．下列各数中，能化为有限小数的分数是（ ▲ ）.(A)13； (B) 315； (C) 1228； (D) 19. 2. 在平面直角坐标系中，将正比例函数y kx =（k >0）的图像向上平移一个单位，那么平移后的图像不经过（ ▲ ）. (A) 第一象限； (B) 第二象限； (C) 第三象限； (D) 第四象限. 3．已知两圆的圆心距是3，它们的半径分别是方程27100x x -+=的两个根，那么这两个圆的位置关系是（ ▲ ）.(A) 内切； (B) 外切； (C) 相交； (D) 外离.4．一个不透明的盒子中装有2个白球，5个红球和8个黄球，这些球除颜色不同外，没有任何区别，现从这个盒子中随机模出一个球，模到红球的概率是（ ▲ ）.(A)13； (B) 215； (C) 815； (D) 15. 5．下列命题中，错误的是（ ▲ ）.（A ）三角形重心是三条中线交点；（B ）三角形外心到各顶点距离相等；（C ）三角形内心到各边距离相等；（D ）等腰三角形重心、内心、外心重合． 6. 如图，Rt △ABC 中，∠C =90°，D 为BC 上一点， ∠DAC=30°，BD=2，AB =23，那么AC 的长是（ ▲ ）.(A) 3； (B) 22；(C)3； (D)332. 二、填空题：（本大题共12题，每题4分，满分48分）[请将结果直接填入答题纸的相应位置] 7．36的平方根是 ▲ .8．分解因式：328a a -= ▲ .9．函数3xy x=- 的定义域是 ▲ .10．一次函数的图像过点（0，3）且及直线y x =-平行，那么函数解析式是 ▲ .11．已知△ABC ∽△DEF ，且相似比为3∶4，22ABCS cm ∆=，则DEF S ∆= ▲ 2cm .ACB D12. 解方程221413x x x x --=-，设21xy x =-，那么原方程化为关于y 的整式方程是 ▲ .13．在平行四边形ABCD 中，对角线AC ，BD 交于点O ，设向量ABa =，ADb =. 用含a 、b 的式子表示向量AO = ▲ .14. 1纳米等于0.000000001米，用科学记数法表示：2014纳米= ▲ 米. 15．一山坡的坡度为i =1∶3,那么该山坡的坡角为 ▲ 度.16. 直角坐标系中，第四象限内一点P 到x 轴的距离为2，到y 轴的距离为5，那么点P 的坐标是 ▲ . 17．在△ABC 中，AB=AC=5，tan B =43. 若⊙O 的半径为10，且⊙O 经过点B 、C ，那么线段OA 的长等于 ▲ . 18．Rt △ABC 中，∠C=90°，AC =5，BC=12，如果以点C 为圆心，r 为半径，且⊙C 及斜边AB 仅有一个公共点，那么半径r 的取值范围是 ▲ .三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分）19．计算：110231()(1)272π-++-+. 20．先化简分式：23()111x x xx x x -÷-+-，再从不等式组3(2)2,4251x x x x --≥⎧⎨-<+⎩的解集中取一个合适的整数代入，求原分式的值.21. 某校为某地震灾区开展了“献出我们的爱”赈灾捐款活动，九年级（1）班50名同学积极参加了这次活动，下表是小华对全班捐款情况的统计表：捐款（元） 10 15 30 50 60 人数3611136因不慎两处被墨水污染，已无法看清，但已知全班平均每人捐款38元.(1) 根据以上信息请帮助小华计算出被污染处的数据，并写出解答过程；（6分）(2) 该班捐款金额众数、中位数分别是多少？（4分）22．如图，已知AD 既是△ABC 的中线，又是角平分线，请判断（1）△ABC 的形状；（5分）（2）AD 是否过△ABC 外接圆的圆心O ，⊙O 是否是 △ABC 的外接圆，并证明你的结论. （5分） 23. 抛物线2y ax bx =+经过点A （4，0）、B （2，2），联结OB 、AB .(1) 求此抛物线的解析式；（5分） (2) 求证：△ABO 是等腰直角三角形；（4分）(3) 将△ABO 绕点O 按顺时针方向旋转135°得到△O 11A B ，写出边11A B 中点P 的坐标，并判断点P 是否在此抛第22题DABCO物线上，说明理由. （3分）24．如图，港口B 位于港口D 正西方向120海里处，小岛C 位于港口D 北偏西60°的方向上，一艘科学考察船从港口D 出发，沿北偏西30°的DA 方向以每小时20海里的速度驶离港口D ，同时一艘快艇从港口B 出发沿北偏东30°的方向以每小时60海里的速度驶向小岛C . 在小岛C 处用1小时装补给物质后，立即按原来的速度给考察船送去.（1）快艇从港口B 到小岛C 需要多少时间？（3分）（2）快艇从小岛C 出发后最少需要多少时间才能和考察船相遇？（9分） 25．如图，已知在等腰△ABC 中，AB=AC=5，BC=6，点D 为BC 边上一动点（不及点B 重合），过点D 作射线DE 交AB于点E ，∠BDE=∠A ，以点D 为圆心，DC 的长为半径作⊙D . （1）设BD=x ，AE=y ，求y 关于x 的函数关系式，并写出定义域；（3分）（2）当⊙D 及边AB 相切时，求BD （2分）（3）如果⊙E 是以E 为圆心，AE 的长为半径的圆，那么当BD为多少长时，⊙D 及⊙E 相切？（9分）2013参考答案及评分说明一、单项选择题：（本大题共6题，每题4分，满分24分）1．(B) ； 2．(D) ； 3．(A) ； 4．(A) ； 5．(D)； 6．(C).二、填空题：（本大题共12题，每题4分，满分48分） 7. 6； 8. 2(2)(2)a a a +-； 9. 3x <；10. 3y x =-+； 11. 329； 12．23430y y --=；13．1122a b +； 14．62.01410-⨯； 15． 30； 16． P （5，2-）； 17． 5或3； 18．512r <≤或者6013r =．三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分） 19．解: 原式12731+++6′（各2分） 31133++2′=43……………………………………………………………………………………2′20．解：23()111x x x x x x -÷-+-=3(1)(1)()11x x x x x x x+--⋅-+…………………………………1′ =3(1)(1)x x +-- ………………………………………………2′=24x +. …………………………………………………………1′由(1)得 2x≤，………………………………………………………………………………2′ 由(2)得 3x >-，……………………………………………………………………………2′北BC D 北第24题B第25题 E A D∴不等式的解集是 32x -<≤，符合不等式解集的整数是2-，1-，0，1，2.当2x =时，原式=8. ……………………………………………………………………………2′（备注：代正确都得分）21. 解：（1）污染小组人数=50–（3+6+11+13+6）=11（人）．………………………………………2′ 污染小组每人捐款数=5038(10315630115013606)11⨯-⨯+⨯+⨯+⨯+⨯…………2′=40 ．……………………………………………………………………2′（2）该班捐款金额的众数为50元；……………………………………………………………2′ 该班捐款金额的中位数为40元；………………………………………………………2′ 22．(1) △ABC 是等腰三角形．……………………………………………………1′ 证明：过点D 作DE ⊥AB 于点E ，DF ⊥AC 于点F ．………………………1′ ∵AD 是角平分线，∴DE= DF ．………………………………………………………………1′又∵AD 是△ABC 的中线， ∴BD=CD ，∴△BDE ≌△CDF ．………………………………………………………1′∴∠B=∠C ，∴AB=AC ，…………………………………………………………………1′即△ABC 是等腰三角形．（2）AD 过△ABC 的外接圆圆心O ，⊙O 是△ABC 的外接圆．………………………………1′ 证明：∵AB=AC ，AD 是角平分线，∴AD ⊥BC ， ………………………………………………………………………………2′ 又∵BD=CD ，∴AD 过圆心O ．……………………………………………………………………………1′ 作边AB 的中垂线交AD 于点O ，交AB 于点M ，则点O 就是△ABC 的外接圆圆心，∴⊙O 是△ABC 的外接圆．…………………………………………………………………1′23. 解：（1）抛物线2y ax bx =+经过点A （4，0）、B （2，2），∴得1640,42 2.a b a b +=⎧⎨+=⎩，………………………………………………………………………2′解得：1,22.a b ⎧=-⎪⎨⎪=⎩ ………………………………………………………………………2′∴抛物线解析式是212.2y x x =-+………………………………………………………1′证明：（2）过点B 作BC ⊥OA 于点C ，……………………………1′∴BC=OC=CA=2．………………………………………1′∠BOC=∠BAC=45°， ………………………………1′∴∠OBA=90°， ………………………………………1′ ∴△ABO 等腰直角三角形．第23（2）题C xyBO A 1 O E F 第22题DABCM解：（3）点P 坐标（2-，22-）．…………………………………………………………1′当x=2-时，21(2)2(2)2y =-⨯-+⨯-=12222--≠-，………………………………………1′∴点P 不在此抛物线上．…………………………………………………………………………1′ 24．解：（1）由题意得：∠CBD=60°，∠BDC=30°，∴∠BC D=90°．………………………………………1′ ∵BD=120海里，∴BC=12BD=60海里． …………1′∵快艇的速度为60海里/小时，∴快艇到达C 处的时间：60160t ==（小时）．……1′ （2）作CF ⊥DA 于点F ，∵33海里， ∴在Rt △CDF 中，∠CDF=30°，∴CF=12CD=3（海里），333=90（海里）．∴3=303t ÷快艇（小时）．而3=20(40103S ⨯=+考察船（1+1）<90，………………………………………2′ ∴两船不可能在点F 处相遇．……………………………………………………………1′ 假如两船在点O 处（点O 在DF 之间）相遇，设快艇从小岛C 出发后最少需x 小时及考察船相遇，相遇时考察船共用了（x+2）小时， ∴OD=20（x+2），CF=31′∵OF=DF –OD ，∴OF=90–20x –40=50–20x ，CO=60 x ． ………………………………………………1′ 在Rt △COF 中，由勾股定理得 222CFFO CO +=，∴2223035020)(60)x x +-=（）（，……………………………………………………2′整理得 285130x x +-=，解得 11x =，2138x =-（不合题意舍去）．……………………………………………1′ ∴快艇从小岛C 出发后最少需要1小时才能和考察船相遇． …………………………1′25.解：(1)∵∠B=∠B ，∠BDE=∠A ，A F120 北BCD北30° 30°30°O第24题∴△BDE ∽△BAC ，………………………………………………1′∴BD BEAB BC =，即556x y -=， ∴655y x =-．……………………………………………………1′定义域： 0<x 256≤．……………………………………………1′(2) 当⊙D 及边AB 相切时， DC=6–x ，645x x -=，……………………………………………………………………………………1′解得 103x=．………………………………………………………………………………1′ (3) 由（1）知ED=BD=x ，E r =AE=655y x =-，D r = DC=6–x ．……………………………………………………2′ 要使⊙D 及⊙E 相切，只有E r +D r =x 或D r –E r =x 或E r –D r =x ． ……………………3′①E r +D r =x 时， 655x -+6–x=x ，解得 5516x =；…………………………………………………………1′ ②D r –E r =x 时， 6–x –（655x -）=x ，解得 54x =；………………………………………………………1′ ③E r –D r =x 时， 655x -–（6–x ）=x ，解得 16x =-（不合题意，舍去）此时无解．……………………………………………………………………………………1′综上所述：∵5516x=<256，54x =<256， ∴当BD=5516或54时，⊙D 及⊙E 相切．…………………………………………1′。

2011上海普陀中考二模英语(解析)

2011年上海市普陀区初三二模英语试卷Part 2 Vocabulary and GrammarV. Choose the best answer31.Every time we went to the Shanghai Expo we spent _________ couple of hours there.A. aB. anC. theD. /32.Students usually have seven classes every day _________ Monday to Friday.A. onB. inC. ofD. from33.My favourite pop group is the Backstreet Boys. I really enjoy _________ performances.A. theyB. themC. theirD. theirs34;We don't have _________information about the new company you are interested in.A. manyB. muchC. fewD. little35.Please carry these two bags for me. I'll deal with _________A. otherB. othersC. the othersD. another36.Mark says he doesn't mind _________ the office with the new comer.A. shareB. to shareC. sharingD. will share37.The actor who acted in the TV series last night became famous in his _________A. thirtyB. thirtiethC. the thirtiethD. thirties38.The Bund looks _________beautiful at night that it attracts a lot of tourists every day.A. veryB. soC. suchD. quite39.The mother takes the baby to the park every weekend _________ it's rainy or windy.A. sinceB. becauseC. unlessD. until40.He is getting fat, _________ he has decided to go to work on foot.A. soB. butC. orD. for41.Some people think online shopping makes their life _________ than before.A. easyB. easierC. easiestD. the easiest42.Don't disturb your brother. He _________ on a new computer program.A. worksB. was workingC. is workingD. has worked43.It's not good to let your pet _________ too much at a time.A. to eatB. eatingC. eatsD. eat44.3 D. films are not new, they first _________ in 1903.A. appearB. appearedC. have appearedD. had appeared45.I’m not sure whether this newspaper_________ once a week.A. publishB. publishesC. has publishedD. is published46.We _________stay in the theatre for over two hours because of the heavy rain.A. shouldB. couldC. had toD. ought to47. - _________ does it take to get to Beijing by CRH train?-Nine hours.A. How muchB. How longC. How farD. How fast48._________enjoyable day it is!A. HowB. WhatC. What aD. What an49.Don't keep _________ when you are asked some questions in class.A. silentB. generousC. forgetfulD. private50.The ice hotel built in Canada is _________snow and ice, so it doesn't last long.A. covered withB. made up ofC. connected toD. provided with51.His ambition is_______ an engineer when he graduates from university.A. becomeB. becameC. to becomeD. becomes52.Joe cares for gardening and spends much of his spare time studying plants.Which is closest in meaning to the underlined part? _________A. teachesB. solvesC. likesD. manages53.Keep working hard and your dream will come true. Which is closest in meaning to theunderlined part? ______A. be realizedB. be designedC. be createdD. be supported54.Could you please tell me _________?A. where is the new shopping mallB. where the new shopping mall isC. where was the new shopping mallD. where the new shopping mall was55. - Would you come and pick me up?-_________.A. OK. AnytimeB. Yes, pleaseC. No, thanksD. Please go ahead56. - What about going to the concert?- _________. Why don't we go to the beach instead?A. Of course not!B. Not at allC. you're right.D. I don't feel like it VI. Complete the sentences with the given words in their proper forms.57. Danny is going to be __________ next month. (eighth)58. Mum bought presents for everyone but nothing for __________. (her)59. Would you please fetch several __________ for us to cut the bread with? (knife)60. Nobody likes to make friends with __________people, (honest)61. Thank you for your__________. It is really useful to us. (suggest)62. Jack was really sorry for __________ late again. (be)63. The water in this well was seriously__________ in me storm, (pollute)64. People were all very __________ to the volunteers at the Expo . (thank)VII. Rewrite the sentences as required.65. Jane read today’s newspaper to her grandmother. (改为否定句)Jane __________ __________ today’s newspaper to her grandmother.66. Peter never spends his pocket money on snacks. (改为反义疑问句)Peter never spends his pocket money on snacks, __________ __________?67. Teenagers should learn how they should take care of themselves. (改为简单句)Teenagers should learn how __________ __________ care of themselves.68. You can take the underground to the new square. (合并为一句)You can drive your car there, too.You can __________ take the underground __________ drive your car to the new square.69. Have a diet with plenty of fruit, vegetables and rice, and you will stay healthier. (保持句意基本不变)__________ you __________ a diet with plenty of fruit, vegetables and rice, you will stay healthier.70. The last bus will arrive in two minutes. (划线提问)__________ __________ will the bus arrive?Part 3 Reading and WritingVIII. Reading comprehension.(A)Mrs. Wilson, the wife of a rich businessman, invited some friends to lunch. She wanted very much to try a new way of cooking a fish, and she was very pleased with herself when the dish was ready. As the dish was very hot, she put it near the open window to cool for a few minutes. But when she came back for it after five minutes, she was surprised to find the neighbour's cat. Chester, at the dish. Fortunately, she was just in time to stop the cat-before it was too late. That afternoon was successful and everyone enjoyed the dish very much. They talked and laughed till four o'clock.At the end of the afternoon, when she was alone again, Mrs. Wilson felt tired but happy. She was in a chair just near the window when, through the window, she saw the neighbour's cat dead in her garden. Why, the fish dish must be bad! What would happen to her friends? She at once telephoned the family doctor for advice. The doctor told her to telephone all the visitors to meet him at the hospital as soon as they could. Finally the danger was over. Once again Mrs. Wilson was alone again. The neighbour came to see her and cried, "Oh. Mrs. Wilson! Chester is dead. She was killed by someone in a car and put in your garden."True or False71. Mrs. Wilson's husband was a rich businessman.72. Mrs. Wilson had never cooked a fish dish before.73. Mrs. Wilson put the fish dish by the window for a long time.74. Mrs. Wilson's friends didn't leave until 16:00p.m..75. Mrs. Wilson felt upset when she saw Chester's death.76. Mrs. Wilson's friends all fell ill because of the bad fish dish.77. Mrs. Wilson finally learnt the real reason for Chester's death.(B)Alfred and Mary Walker and their son, Robert, live in England. They are visiting Hong Kong on Holiday. They will send postcards home. Now read what they are writing.Dear Richard,We arrived in Hong Kong three days ago. We are having a wonderful time, but every day is very busy. We get up early and go to bed late. It’s rather tiring.Yesterday we took a bus to the Park. It was a very clear day. From the top, we saw the whole of Hong Kong. We took lots of photos. Some of them will be really good. I will buy a video camera for you because I know you want one. I'll get it tomorrow because we are going shopping.Your brother,AlfredDear Mum and Dad.We are having a lovely time in Hong Kong. Two days ago, we went to a place called Ocean Park. We saw lots of sharks and dolphins there. Robert enjoyed it very much. Today we are going to Lantau Island. We will see the huge statue of Buddha there. Tomorrow we are going shopping on Hong Kong Island.Hong Kong is very different to our hometown in England. The streets are more crowded and there is more traffic on the roads. It is noisier than at home as well, and everything is more expensive here!See you soon.Lots of love,MaryHi Dan!Hong Kong is a great city! There is so much to see and do here. We went to a great place called Ocean Park. I saw lots of tropical fish and some sharks. I also went on a roller-coaster and a cable car.I loved the roller-coaster and I went on it four times! Mum and Dad thought I was lost, but then they saw me at the top of the roller-coaster.Tomorrow will be a shopping day, the worst part of the holiday!See you soon!Your friend,RobertChoose the best answers78.The Walkers have been in Hong Kong for _________.A. three daysB. two daysC. a weekD. five days79.Alfred is writing to his _________.A. parentsB. friendC. brotherD. cousin80.Richard will probably get a _________ as a present from Alfred.A. CD playerB. video cameraC. traveling bagD. computer81.The Walkers are going to visit _________ today.A. the PeakB. Ocean ParkC. Lantau IslandD. a shopping centre82.Dan is a friend of _________ .A. Alfred'sB. Mary'sC. Richard'sD. Robert's83.Robert's parents thought he was lost when he _________.A. spent much time watching fishB. went on the roller-coaster four timesC. played with dolphins for a long timeD. stayed in the cable car for long84.According to the passage, which of the following is not true?A. The Walkers’ trip in Hong Kong is tiring but wonderful.B. Mary doesn’t think the prices in Hong Kong are attractiveC. Mary’s hometown is probably quiet and not very crowdedD. Robert is looking forward to going shopping in Hong Kong(C)On 26 December, 2004, more than 270,000 people lost their lives in a tsunami. As the 2004 Tsunami hit areas with tourists, people from over 50. 85 were among the dead. This made it a truly world disaster.The 2004 Tsunami disaster shook the world. Before it happened, most people did not even know what a tsunami was. Then in the hours and days after the first killer waves hit the coast of 13 Southeast Asian and African countries 86 began to talk about tsunami.The 2004 Tsunami was caused by a 9.15 earthquake. The earthquake was so powerful that the ocean floor split into a 1,000 km long crack (1,000 km: the distance from Beijing to Wuhan). The two sides of this crack moved 87 about 10 metres (10 metres: the height of a four-floor building).This caused the movement of about 30 km3 of water (30 km3: the amount of water in 12 million Olympic swimming pools)!270,000 humans lost their lives in the 2004 Tsunami, but 88 , not a single animal in the Yala National Park was killed. How did the animals know the tsunami was coming? Nobody knows, but they had moved to 89 ground or climbed up hills and big trees and were saved. Scientists say that studying animal behaviour could serve as an early warning system for humans in the future.On 26 December, 2004, Tilly Smith, a 10-year-old British schoolgirl was walking along a beautiful beach in Thailand with her mother. Suddenly, she noticed that the sea was bubbling and that it was 'like a beer". Tilly remembered a school geography lesson, and _90 that a bubbling sea was a warning sign for a tsunami. Tilly got her family and 100 other people to safety before the first wave hit the beach.Natural disasters are unexpected. _91 you often hear about them and their terrible effects, you never imagine one happening to you. Neither did any of those 270,000 people. Knowledge is the only way to protect yourself.Choose the words or expressions and complete the passage.85.A. schools B. towns C. countries D. families86.A. few people B. everyone C. no one D. someone87.A. up and down B. from left to right C. to the centre D. forward88.A. unluckily B. certainly C. amazingly D. immediately89.A. softer B. deeper C. wider D. higher90.A. imagined B. recognized. C. agreed D. promised91.A. Although B. Because C. When D. If(D)Read the passage and Till in the blanks with proper words.Elizabeth Blackwell was born in England in 1821. Her rather gave his daughters as good education as his sons. He encouraged his daughters to learn Latin and Greek, read books, learn maths, and study science This was a very u 92 thing to do at a time when few women had any education at all. Women only learned such s 93 as music, painting, and sewing. Because of her father, Elizabeth grew up to be much more independent than most women of her time.When she was eleven, Elizabeth, and her family moved to the United States. Her father started several businesses, but he was never a 94 to do very well. When Elizabeth Blackwell wasseventeen, her father died, leaving no money for his family. For several years Elizabeth taught school to help support the family. She became more and more interested in movements for women's r 95.In the early 1800s, women could not have their own houses or money. They belonged to their fathers and brothers before getting married and l 96 they belonged to their husbands. If a woman did not marry, the only thing for her to do was to live with her parents or one of her relatives, doing housework and helping with the children in return for her food and shelter. Women were not expected to do work o 97 the home or to support themselves.Elizabeth Blackwell did not marry. She did not want to live with any of her brothers. She h 98 the idea of depending on anyone else. She thought and thought about how she could make a living by doing something useful.(E)"The dishes smell so good!" cried Mike. "Are most of the parents here yet? I'm so hungry." Kent looked through the door which led into the hallway. "I think Mr. Milano and Mr. Hasselbach just finished giving them the garden tour. They should be coming here in a moment."The students of Jefferson Middle School had spent all afternoon preparing for the evening meal. They did their best to change the lunchroom into a beautiful dining area for their families. The grey metal tables were hidden under brightly-colored cotton tablecloths. Each table held a small glass vase with fresh flowers from the school's garden.Only about half of the overhead lights were on. The children thought that candles would do an excellent job of creating a nice environment, but Mr. Milano said that candles were too dangerous to use in a school.As the families found their seats, Mr. Milano called Drew, Emilio, and Mike to join her at the front of the room. "Could I have everyone's attention?" asked Mr. Milano. "I just want to take a moment to congratulate Drew, Emilio, and Mike for their wonderful idea."ano continued, "A year ago, they first came to me with the plan for starting a garden at Jefferson. They had thought through everything. Anytime I had a question about how we would make the plan work, they had an answer prepared. As you can see, they were correct. About three quarters of the food you'll be enjoying tonight came from the school garden. The students prepared the whole meal themselves."ano handed Drew, Emilio, and Mike each a box. They opened their boxes as Mr. Milano said, "As a thank-you to these students for their creative idea and hard work, they have each received a stepping-stone from the garden. Their names and the date are engraved on the stones."The three children held up their stepping-stones and smiled as the crowd clapped. "And now," said Mr. Milano, "please help yourselves to the food."Answer the questions.99. Who prepared the whole dinner?101. Where did they have their dinner?102. How did the students decorate the dinning tables?103. Were candles used at dinner time that day?104. Most of the food for the meal came from the school garden, didn't it?105. Why were Drew, Emilio, and Mike each given a special present?IX. Writing106. Writes passage of 60-80 words on the topic "The first time I...". (以“我第一次”为题写一篇60-80词的短文，标点符号不占格)Use the following points as a reference.What experience did you have?How was your experience?普陀区2011年第二学期九年级第二次质量调研考试参考答案I. 1. G 2. F 3. A 4. C 5. D 6. BII. 7. C 8. B 9. A 10. D 11. A 12. C 13.B 14. D15. C 16.DIII. 17. T 18. F 19.F 20. T 21. F 22. F 23. TIV. 24. pair 25.sure 26. large 27. behind 28. fit 29. pink 30. 698V. 31. A 32. D 33. C 34. B 35. C 36. C 37. D 38. B 39. C40. A 41. B 42. C 43. D 44. B 45. D 46. C 47. B 48. D49.A 50. B51. C 52. C 53. A 54. B 55. A 56. DVI. 57.eight 58.herself 59.knives 60. dishonest61.suggestion 62.being 63.polluted 64.thankfulVII. 65. didn't read 66. does he 67. to take 68. either, or 69. if, have 70. How soon VIII.(A) 71. T 72.F 73. F 74. T 75. T 76. F 77. T(B) 78. A 79. C 80. B 81. C 82. D 83. B 84. D(C) 85. C 86. B 87. A 88. C 89. D 90. B 91. A(D) 92. unusual 93. subjects 94. able 95. rights 96. later 97. outside 98. hated(E)99. The students of Jefferson Middle School.100. The school garden.101. In the school lunchroom.102. With brightly—colored cotton table cloths.103. No, they weren't.104. Yes, it did.105. For their creative idea and hard work.【听力文字稿】I. Listen and choose the right picture1. Jack used to work on a ship and traveled to many places.2. Jane teaches Chinese in a language school in New Zealand.3. People usually don't talk loudly when they are taking the underground.4. Look! The people over there are making a film.5. Amy has a strong desire to be a pilot in the future.6. Tony has just written another article about the underwater world.II. Listen to the dialogue and choose the best answer to the question you hear7. M: Look at the screen there. The departure time of our flight is 11:45 a. m.W: Oh, there are only twenty minutes left.Q: When will their flight leave?8. M: Excuse me, how much is the flower in that brown pot?W: 60 yuan. If you take 2, you only need to pay 50 for each.Q: Where does the dialogue probably take place?9. M: I'm going to visit Singapore during the summer holidays. What about you?W: I can't decide yet. My husband will have a meeting in Russia. Maybe I will go with him. Q: Which country is the man going to visit?10. M: Mary, would you please come to my office for a while after class?W: All right, Mr. Ford.Q: What is the man?11. W: Are you going to Lucy's party?M: No, I don't think so. Well, everyone is going to dance. I can't dance at all.Q: Why is the boy not going to Lucy's party?12. M: It's Friday at last! What's your plan for tomorrow?W: Do some shopping and cleaning. What about you?M: There'll be two important football matches on TV. I won't miss them.Q: What's the man going to do tomorrow?13. M: How far do we have to drive?W: Not very far, but let's stop to have a cup of coffee and take a short rest.Q: Where are the two speakers?14. M: What a hot day! Would you like to join us for a walk along the river?W: Gook idea! It must be cooler by the river.Q: What does the girl mean?15. M: Excuse me, is Mr. Black in his office?W: Sorry. He is in Beijing on business. He won't be back until next Wednesday.M: I see. Then may I meet him next Thursday?W: Well, I think you'd better call again next Tuesday.Q: When will Mr. Black come back?16. M: The weather forecast says it's going to rain tomorrow.W: Really? I hope so.M: What do you mean by saying that? You like rainy days?W: No, I don't. But if it's rainy, I won't have to water the flowers in the garden.Q: What can we learn from the dialogue? III. Listen to the passage and tell whether the following statements are true or falseIt was already midnight. A young American doctor was sleeping when suddenly his doorbell began to ring. He had to get up, put on his coat and go downstairs.When he opened the door, he saw a man standing with a hat in his hand. "How do you do?" said the man, "Can you come at once to a place out of town? It's quite far but you have a car and I can show you the way. ""Certainly," said the doctor, "I'm quite ready, I can come at once. " After a few minutes the car was standing at the front door, the man got into the doctor's car, and they drove off.They drove on for a long time. Then the man said, "Here we are. This is my home. Now I can pay you and you can go back to town. ""I must see the patient," the doctor said, "How can I go back without seeing the patient?" "There is no patient," explained the man, "Nobody is ill. I live here, you see, and I must get home from the town, mustn't I? There are no taxis this time of the night, but a doctor often makes night calls, so excuse me. Here is your money. Thank you, doctor. Good night. "IV. Listen to the dialogue and fill in the blanksW: Good afternoon, sir. What can I do for you?M: Well, I am looking for a pair of jeans and a shirt to match them.W: We have a big variety here. I'm sure you can make a good choice. Try on this pair of jeans. Ithink they are your size. You wear large, don't you?M: Yes, large is my size. By the way, where is the changing room?W: It's behind that mirror.M: Thank you. How do I look in the jeans? Do they make me look fat?W: No, they fit you very well. And what about the shirt, what colour do you want?M: I have no idea. Do you have any suggestions?W: Let me see, urn, I think that pink shirt will make a good match.M: But I never wear pink or red. Maybe I can try on that dark blue one.W: Dark blue looks nice on you.M: OK. I'll take the jeans and the dark blue shirt. How much are they altogether?W: 698 yuan. How would you like to pay, cash or card?M: Cash.W: OK. Here's your change.普陀区2011年第二学期九年级第二次质量调研考试答案解析单选31. 每次去上海世博会，我们都会花一两个小时在那儿。

上海市普陀区九年级下学期化学第二次模拟考试试卷

上海市普陀区九年级下学期化学第二次模拟考试试卷姓名:________ 班级:________ 成绩:________一、选择题 (共15题；共31分)1. （2分）某粒子结构示意图如图所示，下列说法错误的是（）A . 该粒子是阴离子B . 该粒子达到相对稳定的结构C . 该粒子属于金属元素D . 该粒子原子核内有16个质子2. （2分）甲、乙两种物质的溶解度曲线如图所示．下列叙述正确的是（）A . 依据溶解度曲线可判断，甲的溶解度比乙的大B . 将甲、乙的饱和溶液从t2℃降到t1℃，析出甲的质量大C . 将t2℃时甲的饱和溶液变为不饱和溶液，可采取降温的方法D . t1℃时，甲和乙的饱和溶液各100g，其溶质的质量一定相等3. （3分）(2019·东丽模拟) 下列各组物质的溶液不用其它试剂就可鉴别出来的是（）A . 硫酸钾、硝酸钡、碳酸钠、盐酸B . 盐酸、硫酸铜、硝酸钾、硫酸钠C . 硝酸钠、硫酸钠、盐酸、硫酸镁D . 氯化铁、盐酸、氯化钠、氢氧化钠4. （2分） (2017九下·扬州月考) 下列现象中，一定发生化学变化的是（）A . 瓷碗破碎B . 铁丝弯曲C . 蜡烛燃烧D . 冰雪融化5. （2分）下列说法你认为正确的是（）A . 由一种元素组成的物质是纯净物B . “足球烯”的化学式为C60 ，它是一种新型的化合物C . 铅笔含有铅元素的，不要放口里以免中毒D . 用石墨可做干电池的电极6. （2分） (2017九下·凉州期中) 材料是时代进步的重要标志．下列有关材料的说法中，错误的是（）A . 废弃塑料会带来“白色污染”B . 电木插座具有热固性，破裂后不能热修补C . 塑料、合成纤维、合金都属于有机合成材料D . 蚕丝、棉花都属于天然纤维7. （2分）溶液与我们的日常生活密切相关．下列有关溶液的说法正确的是（）A . 溶液一定是无色透明的B . 面粉与水混合可形成溶液C . 稀溶液液可能是饱和溶液D . 溶液的上层浓度小，下层浓度大8. （2分）下列实验操作不正确的是（）A . 倾倒液体B . 检查气密性C . 稀释浓硫酸D . 测定溶液的pH9. （2分）(2017·淅川模拟) 下列叙述不正确的是（）A . 用互相刻画的方法，可比较硬铝和铝的硬度B . 用熟石灰粉末研磨，可鉴别硫酸铵和氯化铵C . 用灼烧闻气味的方法，可区分棉纤维和羊毛D . 用带火星的木条，可鉴别氧气和空气10. （2分）下列原因与举例不相符合的是（）A . 反应条件不同，生成物可能不同例：铁在潮湿的空气中生锈，在氧气中燃烧B . 反应物的接触面积不同，反应现象可能不同例：硫在氧气中和在空气中燃烧现象不同C . 反应物的量不同，生成物可能不同例：碳分别在氧气不足和充足的情况下燃烧D . 物质的浓度不同，化学性质可能不同例：浓硫酸和稀硫酸11. （2分）类推可以实现知识迁移，但不符合事实的类推会得出错误的结论．下列类推正确的是（）A . 硝酸铵溶于水吸收大量的热，食盐溶于水也吸收大量的热B . 氮肥氯化铵与碱研磨可放出氨气，氮肥尿素与碱研磨也能放出氨气C . 盐酸与块状石灰石反应能制取CO2 ，则稀硫酸也能与块状石灰石反应制取CO2D . 氢气与空气混合点燃可能爆炸，CO与空气混合点燃也可能爆炸12. （2分）(2011·铁岭) 下列生产、生活中的做法科学合理的是（）A . 霉变的大米洗净后可以食用B . 铵态氮肥与熟石灰混合使用可以提高肥效C . 自然界的水经沉淀、过滤、吸附后就可以得到蒸馏水D . 为减少对环境的污染，将废旧电池回收后集中处理13. （2分） (2016九下·通州期末) 下列关于分子的叙述中，正确的是（）A . 一切物质都是由分子构成的B . 分子的体积和质量都很小C . 空气是由空气分子构成的D . 水蒸发变为水蒸气，水分子改变了14. （2分）下列做法存在安全隐患的是（）A . 炒菜时油锅着火，立即盖上锅盖B . 厨房内闻到较浓的燃气味，立即关闭阀门并开窗通风C . 电器着火赶紧用水扑灭D . 手持燃着的蜡烛入溶洞游览，发现烛光变弱或熄灭立即退出15. （2分） (2018九上·漳州期末) 如图表示混均一定质量的KClO3和MnO2 固体在受热过程中各物质质量随时间的变化趋势。

上海市2014普陀区初三英语二模试卷(含问题详解)

实用标准文档大全2013 -2014学年度第二学期普陀区初三质量调研（二模）英语试卷（满分150 分，考试时间100 分钟）考生注意：本卷有7 大题，共94 小题。

试题均采用连续编号，所有答案务必按照规定在答题纸上完成，做在试卷上不给分。

Part 1 Listening (第一部分听力)I. Listening Comprehension (听力理解) (共30分)A. Listen and choose the right picture (根据你听到的内容，选出相应的图片) (共6分)AEBFCGDH1. ______2. ______3. ______4. ______5. ______6. ______B. Listen to the dialogue and choose the best answer to the question you hear (根据你听到的对话和问题，选出最恰当的答案) (共8分)7. A) To the office. B) To the supermarket. C) To thestation.D) To the cinema.8. A) At 8:30a.m. B) At9:30a.m.C) At 1:30p.m. D) At 2:30p.m.9. A) Chicken. B) Beef. C) Pork. D) Fish.10. A) Opposite the bookshelf.C) Opposite the window.B) Beside the bookshelf.D) Beside the door.11. A) A friend. B) A driver. C) A teacher. D) A clerk.12. A) He needs to prepare for a maths test.实用标准文档大全C) He needs to watch a match onTV.B) He needs to write a report.D) He needs to talk to his parents.13. A) Her job. B) Her study. C) Her weight. D) Her age.实用标准文档大全14. A) It’s the rainy season inHainan.C) They will take a trip toShanghai.B) The woman dislikes the weather in Shanghai.D) The man is lying on the beach of Hainan.C. Listen to the passage and tell whether the following statements are true or false (判断下列句子是否符合你听到的短文内容，符合的用“T”表示，不符合的用“F”表示)(共6分)15. Dr Petrels takes care of 60 patients a week in the hospital and at his office.16. Dr Petrels has his own TV show and it is in Italian, English and French.17. Dr Petrels starts the show with medical advice and then sings two songs.18. Dr Petrels not only sings on TV every week but also writes love songs.19. Dr Petrels’father wished him to become a singer and perform in Hollywood.20. Dr Petrels thinks he can help people a lot both as a doctor and as a singer.D. Listen to the passage and complete the following sentences（听短文，完成下列内容。

2011学年度第二学期普陀区初三质量调研

2011学年度第二学期普陀区初三质量调研语文试卷（满分150分，考试时间100分钟）考生注意：1、本卷共27题。

2、请将所有答案做在答题纸的指定位置上，做在试卷上一律不计分。

一、文言文（42分）（一）默写（18分）1．衣带渐宽终不悔，。

《蝶恋花》2．，浅草才能没马蹄。

《钱塘湖春行》3．爱上层楼，。

《丑奴儿书博山道中壁》4．东边日出西边雨，。

《竹枝词》5．复行数十步，。

《桃花源记》6．，必先苦其心志。

《生于忧患，死于安乐》（二）阅读下面的诗，完成第7——8题（4分）题破山寺后禅院唐常建清晨入古寺，初日照高林。

竹径通幽处，禅房花木深。

山光悦鸟性，潭影空人心。

万籁此俱寂，但余钟磬音。

7．本诗中“万籁”指。

（2分）8．下列理解正确．．的一项是（）（2分）A．首联点明诗人出游地点和入寺所见。

B．颔联细致描绘一幅竹花繁盛的画面。

C．颈联以鸟之乐表现诗人的怡然自乐。

D．尾联用钟磬声再现寺庙的灵动生机。

（三）阅读下文，完成第9——11题（8分）陋室铭山不在高，有仙则名；水不在深，有龙则灵。

斯是陋室，惟吾德馨。

∥苔痕上阶绿，草色入帘青。

谈笑有鸿儒，往来无白丁。

可以调素琴，阅金经。

无丝竹之乱耳，无案牍之劳形。

∥南阳诸葛庐，西蜀子云亭，孔子云：“何陋之有？”9．本文作者是（朝代）的（人名）。

（2分）10．用现代汉语翻译下面的句子。

（3分）孔子云：“何陋之有？11．下列理解不正确．．．的一项是（）（3分）A．第一层通过类比点明“斯是陋室，惟吾德馨”。

B．第二层描写了来客学问渊博和生活怡然自适。

C．第三层运用典故与名人名言证明“陋室不陋”。

D．全文借助陋室不陋体现作者安贫乐道的思想。

（四）阅读下文，完成第12——15题（12分）曾子衣敝衣以耕，鲁君使人往贻．邑焉，曰：“请以此修衣①。

”曾子不受。

反，复往，又不受，使者曰：“先生非求于人，人则献之，奚为不受？”曾子曰：“臣闻之，受人者畏人，予人者骄人；纵子有赐，不我骄也，我能勿畏乎？”终不受。

2011普陀区数学二模试卷及答案

23．（本题满分 12 分，第(1)小题满分 6 分，第(2)小题满分 6 分）如图 7，等腰三角形 ABC 中，AB=AC，AH 垂直 BC，点 E 是 AH 上一点，延长 AH 至点 F，使 FH=EH，（1）求证：四边形 EBFC 是菱形；（2）如果 BAC = ECF ，求证： AC CF ．
5. 如图 1，把一块直角三角板的直角顶点放在直尺的一边上，如果∠1=32o，那么∠2 的度数是（ (A) 32o； (B) 58o；） (C) 68o； (D) 60o．
6. 如图 2，△ABC 中，点 D、E 分别是 AB、AC 的中点，由此得到结论：①BC=2DE； ②△ADE∽△ABC； ③
A
E B H
图7
C
FLeabharlann 24．（本题满分 12 分，第(1)小题 4 分，第(2)小题 4 分、第(3)小题 4 分）如图 8，在平面直角坐标系 xOy 中，半径为 2 5 的点，且点 C 在 x 轴的上方．（1）求圆心 C 的坐标；（2）已知一个二次函数的图像经过点 A 、B、C，
C 与 x 轴交于 A 1, 0 、 B 3, 0 两
A B
（2）求∠EFC 的正弦值．
D
C
图6 22.（本题满分 10 分，第(1)(2)小题满分各 3 分，第(3)小题满分 4 分）国家教育部规定“中小学生每天在校体育活动时间不低于 1 小时” ．2011 年，为了了解我市毕业班学生体育活动情况，随机对我市 240 名毕业班学生进行调查，调查内容为：第一问你平均每天在校参加体育活动的时间是多少? B．0.5～1 小时 C．低于 0.5 小时
20．解：设 y
3x ，则原方程变形为 y 2 2 y 3 0 ．……………………………（2 分） 2x 1

2014年上海市普陀区中考数学二模试卷

2014年上海市普陀区中考数学二模试卷一、单项选择题：（本大题共6题，每题4分，满分24分）1．（4分）（2014•普陀区二模）下列各数中，能化为有限小数的分数是（）A．B．C．D．【考点】实数的概念M121【难易度】容易题【分析】本题需根据有理数的除法法则分别对每一项进行计算。

A.=0.3…，故本选项错误；B.=0.2，故本选项正确；C.=0.42857…，故本选项错误；D.=0.1…，故本选项错误．【解答】答案：B．【点评】本题主要考查了有理数的除法，属于容易题。

在解题时要根据有理数的除法法则分别计算是解题的关键．2．（4分）（2014•普陀区二模）在平面直角坐标系中，将正比例函数y=kx（k＞0）的图象向上平移一个单位，那么平移后的图象不经过（）A．第一象限 B．第二象限 C．第三象限 D．第四象限【考点】一次函数的的图象、性质M422结合图像对函数关系进行分析M413【难易度】容易题【分析】先由“上加下减”的平移规律求出正比例函数y=kx（k＞0）的图象向上平移一个单位后的解析式y=kx+1（k＞0），因为k＞0，b=1＞0，所以图象经过第一、二、三象限，不经过第四象限．【解答】答案：D．【点评】本题考查了一次函数图象与几何变换，一次函数图象与系数的关系，属于容易题。

正确得出函数平移后的解析式是解题的关键．3．（4分）（2014•普陀区二模）已知两圆的圆心距是3，它们的半径分别是方程x2﹣7x+10=0的两个根，那么这两个圆的位置关系是（）A．内切 B．外切 C．相交 D．外离【考点】两圆的位置关系M356一元二次方程的概念、解法M241因式分解M217【难易度】容易题【分析】由两圆的半径分别是方程x2﹣7x+10=0的两根，利用因式分解法因为x2﹣7x+10=0，所以（x﹣2）（x﹣5）=0，解得：x1=2，x2=5，两圆的半径分别是2，5。

又因为两圆的圆心距为3，因为3=5﹣2，所以这两个圆的位置关系是：内切．【解答】答案：A．【点评】此题考查了圆与圆的位置关系与一元二次方程的解法．属于容易题，解题的关键是掌握两圆位置关系与圆心距d，两圆半径R，r的数量关系间的联系得出两圆位置关系．4．（4分）（2014•普陀区二模）一个不透明的盒子中装有2个白球，5个红球和8个黄球，这些球除颜色外，没有任何其他区别，现从这个盒子中随机摸出一个球，摸到红球的概率为（）A．B．C．D．【考点】概率的计算M512【难易度】容易题【分析】根据概率的求法，找准两点：①全部情况的总数；②符合条件的情况数目；二者的比值就是其发生的概率．根据题意可得：一个不透明的盒子中装有2个白球，5个红球和8个黄球，共15个，摸到红球的概率为=，【解答】答案：B．【点评】此题考查概率的求法，属于容易题。

2011上海高三二模普陀试卷(含答案)

2010学年度第二学期普陀区高三质量调研化学试卷2011.4本试卷分为第I卷和第Ⅱ卷两部分。

全卷共9页。

满分150分。

考试时间120分钟第I卷（共66分）考生注意：1、答第I卷前，考生务必在答题卡上用钢笔或圆珠笔清楚填写学校、班级、姓名、学生考试编号，并用2B铅笔正确涂写学生考试编号。

2、第I卷（1—22小题），由机器阅卷，答案必须全部涂写在答题卡上。

考生应将代表正确答案的小方格用2B铅笔涂黑。

注意答题纸编号和试题题号一一对应，不能错位。

答案需要更改时，必须将原选项用橡皮擦去，重新选择。

答案不能写在试卷上，写在试卷上一律不给分。

相对原子质量：H—1 C—12 N—14 O—16 F－19 Cl－35.5 Xe—131 Co—59一、选择题：（本题共10分，每小题2分，只有一个正确选项，答案涂写在答题卡上。

）1．下列有机物的化学式与名称对应正确的是A．石碳酸B．TNTC．HCHO蚁醛D．CH2BrCH2Br 二溴乙烷2．通常依据物质的组成或性质对物质进行分类。

下列物质只按组成分类的是A．KAl(SO4)2是复盐、硫酸盐B．HClO是一元酸、不稳定酸C．Al2O3是金属氧化物、两性氧化物D．Mg(OH)2是二元碱、难溶性碱3．下列化学用语或表达式正确的是A．Na＋的电子排布式：1s22s22p63p1B．二氧化碳的电子式：C．N原子最外层轨道表示式：D．钢铁发生吸氧腐蚀的正极反应式：O2＋2H2O＋4e → 4OH－4．“结构决定性质”，有关物质结构的下列说法中正确的是A．碘熔化时一定破坏了化学键B．共价化合物不一定是电解质C．干冰晶体内存在非极性键与范德华力D．液态氟化氢中存在氢键，故氟化氢比氯化氢更稳定5．生活、科技、社会活动中，不正确的说法有A．石墨可用作原子核反应堆的电极材料和慢化剂等B．雨水的pＨ值一般小于7C．Cl2、O3、ClO2、皆可用作饮用水的消毒剂D．AgI和干冰都可用于人工降雨二、选择题：（本题共36分，每小题3分，只有一个正确选项，答案涂写在答题卡上。

沪教版(五四制)九年级数学下普陀初三二模(含答案).docx

普陀区2011学年度第二学期九年级数学期终考试调研卷 2012.4.17（时间：100分钟，满分：150分）考生注意：1．本试卷含三个大题，共25题．答题时，考生务必按答题要求在答题纸规定的位置上作答，在草稿纸、本试卷上答题一律无效．2．除第一、二大题外，其余各题如无特别说明，都必须在答题纸的相应位置上写出证明或计算的主要步骤．一、单项选择题：（本大题共6题，每题4分，满分24分）（下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号并填涂在答题纸的相应位置上） 1．下列运算，计算结果错误的是( )．A ．437a a a ⋅=；B ．633a a a ÷=；C ．325()a a =；D ．333()a b a b ⋅=⋅．2．经过点()2,4的双曲线的表达式是( )．A ．2y x =；B ．12y x =； C ．8y x=； D ．2y x =．3．如图，飞镖投一个被平均分成6份的圆形靶子，那么飞镖落在阴影部分的概率是( )． A ．16； B ．13； C ．12； D ．23．4．下列图形中是中心对称图形，但不是轴对称图形的是( )．A ．； B ．； C ．； D ．．5．已知四边形ABCD 中，90A B C ∠=∠=∠=，如果添加一个条件，即可判定该四边形是正方形，那么所添加的这个条件可以是（）．A ．90D ∠=；B ．AB CD =；C ．AD BC =； D ．BC CD =．6．下列说法中正确的是( )．A ．某种彩票的中奖率是10%，则购买该种彩票100张一定中奖是必然事件；B ．如图，在长方体ABCD EFGH -中，与棱EF 、棱FG 都异面的棱是棱DH ；C ．如果一个多边形的内角和等于540，那么这个多边形是正五边形；D ．平分弦的直径垂直于这条弦．二、填空题：（本大题共12题，每题4分，满分48分）7．计算：22-＝．8．方程212x -=的根是．9．用换元法解分式方程221231x x x x +-=+时，如果设21xy x =+，那么原方程可以化为关于y 的方程是．10．如果关于x 的方程210x ax a -+-=有两个相等的实数根，那么a 的值等于．11．已知正比例函数()1y k x =-，函数值y 随自变量x 的值增大而减小，那么k 的取值范围是．12．某种品牌的笔记本电脑原价为a 元，如果连续两次降价的百分率都为x ，那么两次降价后的价格为元．13．已知△ABC 的重心G 到BC 边上中点D 的距离等于2，那么中线AD 长等于．14．如果梯形的一条底边长为5，中位线长为7，那么另一条底边的长为．15．如图，在△ABC 中，DE ∥BC ，如果1DE =，4BC =，那么△ADE 与△ABC 面积的比是．16．如图，边长为1的菱形ABCD 的两个顶点B 、C 恰好落在扇形AEF 的 EF 上时，BC 的长度等于（结果保留π）．17．在矩形ABCD 中，如果2AB =，1BC =，那么AB BC += ．18．如图，将边长为4的正方形ABCD 沿着折痕EF 折叠，使点B 落在边AD 的中点G 处，那么四边形BCEF 的面积等于．三、解答题：（本大题共7题，满分78分） 19．（本题满分10分）先化简，再求值：22211111a a a a a ⎛⎫-++÷ ⎪-+⎝⎭，其中2a =．20．（本题满分10分）解方程组：225602x xy y x y ⎧++=⎨+=⎩①②21．（本题满分10分）已知：如图，在△ABC 中，CD ⊥AB ，4sin A 5=，13AB =，12CD =，求AD 的长和tan B 的值． 22．（本题满分10分）下面提供上海楼市近期的两幅业务图：图（甲）所示为2011年6月至12月上海商品房平均成交价格的走势图（单位：万元/平方米）；图（乙）所示为2011年12月上海商品房成交价格段比例分布图（其中a 为每平方米商品房成交价格，单位：万元/平方米）．（1）根据图（甲），写出2011年6月至2011年12月上海商品房平均成交价格的中位数；（2）根据图（乙），可知x ＝；（3）2011年12月从上海市的内环线以内、内中环之间、中外环之间和外环线以外等四个区域中的每个区域的在售楼盘中随机抽出两个进行分析：共有可售商品房2400套，其中成交200套．请估计12月份在全市所有的60000套可售商品房中已成交的并且每平方米价格低于2万元的商品房的套数． 23．（本题满分12分）如图，四边形ABCD 中，AD ∥BC ，点E 在CB 的延长线上，联结DE ，交AB 于点F ，联结DB ，AFD DBE ∠=∠，且2DE BE CE =⋅．x %（1）求证：DBE CDE ∠=∠；（2）当BD 平分ABC ∠时，求证：四边形ABCD 是菱形． 24．（本题满分12分）二次函数()21236y x =+的图像的顶点为A ，与y 轴交于点B ，以AB 为边在第二象限内作等边三角形ABC ．（1）求直线AB 的表达式和点C 的坐标；（2）点()0,1M 在第二象限，且△ABM 的面积等于△ABC 的面积，求点M 的坐标；（3）以x 轴上的点N 为圆心，1为半径的圆，与以点C 为圆心，CM 的长为半径的圆相切，直接写出点N 的坐标．25．（本题满分14分）已知，90ACB ∠=，CD 是ACB ∠的平分线，点P 在CD 上，2CP =．将三角板的直角顶点放置在点P 处，绕着点P 旋转，三角板的一条直角边与射线CB 交于点E ，另一条直角边与直线CA 、直线分别交于点F 、点G ．（1）如图9，当点F 在射线CA 上时， ①求证： PF PE =；②设CF x =，EG y =，求y 与x 的函数解析式并写出函数的定义域；（2）联结EF ，当△CEF 与△EGP 似时，求EG 的长．备用图普陀区2011学年度第二学期九年级数学期终考试试卷参考答案及评分说明y x-111-1O一、单项选择题：（本大题共6题，每题4分，满分24分） 1．C ； 2．C ； 3．C ；4．A ； 5．D ； 6．B .二、填空题：（本大题共12题，每题4分，满分48分）7.－4； 8. 5x =±； 9.123y y-= ； 10. 2； 11．1k <； 12. ()21a x -； 13．6； 14．9； 15．1:16； 16．3π； 17．5； 18．6．三、解答题：（本大题共7题，其中第19——22题每题10分，第23、24题每题12分，第25题14分，满分78分） 19．解：原式=()1111a a a a -⎛⎫+⋅+⎪+⎝⎭ （3分） 11a a a+=-+（2分） 21a a+= （2分）当2a =时，原式()2213222+==（3分） 20．【解法1】由①得：()()230x y x y ++=∴20x y +=或30x y += （4分）原方程组可化为202x y x y +=⎧⎨+=⎩，302x y x y +=⎧⎨+=⎩ ，（2分）分别解这两个方程组，得原方程组的解为1142x y =⎧⎨=-⎩，2231x y =⎧⎨=-⎩，（4分）【解法2】由②得2y x =- ③ （1分）把③代入①得()()2252620x x x x +-+-=整理得27120x x -+= （3分）解得14x =，23x = （2分）分别代入③得12y =-，11y =- （2分） ∴原方程组的解为1142x y =⎧⎨=-⎩，2231x y =⎧⎨=-⎩，（2分）21．解： ∵CD AB ⊥，∴90CDA ∠= （1分）∵4sin 5CD A AC ==，12CD =， ∴ 15AC = （3分）∴9AD = （2分） ∴4BD = （2分） ∴tan 3CDB BD== （2分） 22．解：21F DECAB（1）2.68 （3分）（2）6 （2分）（3）设12月份全市共成交商品房x 套，200240060000x=5000x = （3分）()50006%17%1150⨯+= （2分）∴估计12月份在全市所有的60000套可售商品房中已成交的并且每平方米价格低于2万元的商品房的成交套数为1150套． 23．证明：（1）∵2DE BE CE =⋅，∴DE CE =BEDE．（2分） ∵E E ∠=∠，（1分） ∴△DBE ∽△CDE ．（1分） ∴DBE CDE ∠=∠．（1分）证明：（2）∵CDE DBE ∠=∠，又∵DBE AFD ∠=∠，∴CDE AFD ∠=∠．（1分） ∴AB ∥DC ．（1分）又∵AD ∥BC ，∴四边形ABCD 是平行四边形（1分） ∵AD ∥BC ，∴1ADB ∠=∠．（1分） ∵DB 平分ABC ∠，∴12∠=∠．（1分） ∴2ADB ∠=∠．∴AB AD =．（1分） ∴四边形ABCD 是菱形．（1分）24．解：（1）二次函数()21236y x =+的图像的顶点()23,0A -，与y 轴的交点()0,2B ，（2分）设直线AB 的表达式为()0y kx b k =+≠，可求得33k =，2b =．所以直线AB 的表达式为323y x =+．（1分）可得30BAO ∠=，∵60BAC ︒∠=，∴90CAO ∠=．（1分）在Rt △BAO 中，由勾股定理得：4AB =．∴4AC =．点()23,4C -．（1分）解：（2）∵点C 、M 都在第二象限，且△ABM 的面积等于△ABC 的面积，∴CM ∥AB ．（1分）设直线CM 的表达式为33y x m =+，点()23,4C -在直线CM 上，可得 6m =．∴直线CM 的表达式为363y x =+．（1分）可得点M 的坐标：()53,1-．（1分）解：（3）点N 的坐标()323,0--，()323,0-，()3323,0--，()3323,0-．（4分）25．（1）证明：①过点P 作PM AC ⊥，PN BC ⊥，垂足分别为M 、N ．（1分）∵CD 是ACB ∠的平分线， ∴PM PN =．由90PMC MCN CNP ∠=∠=∠=，得90MPN ∠=． ∴190FPN ∠+∠=． ∵290FPN ∠+∠=， ∴12∠=∠．∴△PMF ≌△PNE ．（3分） ∴PF PE =．解：②∵2CP =，∴1CN CM ==． ∵△PMF ≌△PNE ，∴1NE MF x ==-．∴2CE x =-．（2分） ∵CF ∥PN ，21N M ABC E DPF GF M NABCEPD∴CF CGPN GN=． ∴1xCG x =-．（2分）∴()2011xy x x x=+-≤<- （2分）解：（2）当△CEF 与△EGP 相似时，点F 的位置有两种情况：①当点F 在射线CA 上时，∵90GPE FCE ∠=∠=，1PEG ∠≠∠， ∴1G ∠=∠． ∴FG FE =． ∴CG CE =．在Rt △EGP 中，222EG CP ==．（2分） ②当点F 在AC 延长线上时，∵90GPE FCE ∠=∠=，12∠≠∠， ∴32∠=∠．∵1455∠=+∠，1452∠=+∠， ∴52∠=∠．易证34∠=∠，可得54∠=∠． ∴2FC CP ==．∴12FM =+．易证△PMF ≌△PNE ，可得12EN =+． ∵CF ∥PN ， ∴CF CGPN GN=． ∴21GN =-．∴22EG =．（2分）FDPGE C BA1AB CEDPMFG N45321初中数学试卷鼎尚图文**整理制作。

2011年普陀区中考物理二模试卷(含答案)

2011学年度第二学期普陀区初三质量调研物理试卷一、单选题（每小题2分，共16分）1．如图1所示的3种原子模型中，最接近于原子内部真实情况的是（）A ．图①模型B ．图②模型C ．图③模型D ．三种模型与真实情况接近程度相同2．地震产生的次声波常对人类和建筑物造成巨大危害，这种波的特点是（） A ．频率低，人耳听不到 B ．频率低，人耳能听到C ．频率高，人耳听不到D ．频率高，人耳能听到 3．以下关于重力方向的说法中正确的是（）A ．重力方向总是垂直向下B ．重力方向总是垂直于地面向下C ．重力方向总是垂直于桌面向下D ．重力方向总是垂直于水平面向下4．人眼球中的晶状体相当于凸透镜，若要在视网膜上成清晰的像，眼睛离物体的距离应 A ．大于一倍焦距B ．大于两倍焦距（）C ．大于一倍焦距，小于二倍焦距D ．小于一倍焦距5．工地上用起重机搬运一个重力为G 的物体，匀速提升时所用的拉力为F 1，匀速下降时所用的拉力为F 2，则F 1、F 2、G 三者之间正确的关系是（） A ． F 1 > G > F 2 B ．F 1 > F 2 = GC ． F 1 = F 2 = GD ．F 1 < G < F 2 6．如图2所示，O 为杠杆AB 的支点，A 端挂一重物G ，图中能使杠杆在水平位置平衡的最小的拉力是（）A ．F 12C ．F 3D ．F 47．两个完全相同的圆柱形容器内分别盛有质量相等的水，现将质量相等的实心铜球和铝球（ρ铜>ρ铝）分别浸没在甲、乙两个容器中，且均无水溢出，这时两个容器底部所受水图1①原子行星模型 ②氦原子的电子云模型 ③原子葡萄干蛋糕模型F4F 2F 3F 1O •B A 图2 图3的压力F 甲、F 乙和压强P 甲、P 乙的关系正确的是：（） A ．F 甲 > F 乙 p 甲 > p 乙 B ．F 甲 = F 乙 p 甲 < p 乙C ．F 甲 < F 乙 p 甲 < p 乙D ．F 甲 = F 乙 p 甲 > p 乙8．如图3所示的电路，电源电压恒定不变，闭合电键S 发现小灯L 不亮，若电路中只有一处故障，且只发生在灯L 或电阻R 上，为检测故障所在，下列做法和判断正确的是（） A ．用电压表并在灯L 两端，电压表无示数，则灯L 一定短路 B ．用电压表并在电阻R 两端，电压表无示数，则电阻R 可能短路C ．用一个检测小灯L ′并联在电阻R 两端，若灯L′亮，则灯L 一定短路D ．用一个检测小灯L′并联在电阻R 两端，若灯L′不亮，则灯L 一定断路二、填空题（9—14题每格1分，15—16每格2分，共26分）9．某LED 手电筒内用三节干电池作为电源，每节干电池的电压为（1）伏，三节干电池为（2）使用（选填“串联”或“并联”）。

2011上海普陀初三第二学期质量调研试卷

2009学年度第二学期普陀区初三质量调研数学试卷2010.4（时间：100分钟，满分：150分）考生注意：所有答案务必按照规定在答题纸上完成，写在试卷上不给分题号一二三四总分得分一、单项选择题：（本大题共6题，每题4分，满分24分）[下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号并填涂在答题纸的相应位置上] 1．下列二次根式中，与2是同类二次根式的是………………………………………（）.(A) 8； (B) 3- ； (C) 12 ； (D) 48 .2. 两条对角线互相垂直平分的四边形是………………………………………………（）.(A) 等腰梯形； (B) 菱形； (C) 矩形； (D) 平行四边形.3．下列条件中，能判定两个等腰三角形相似的是……………………………………（）. （A ）都含有一个30°的内角；（B ）都含有一个45°的内角；（C ）都含有一个60°的内角；（D ）都含有一个80°的内角．4．如果一元二次方程220x x k -+=有两个不相等的实数根，那么k 的取值范围是（）.(A) 1k ≥； (B) 1k ≤； (C) 1k >； (D) 1k <.5．如右图，△ABC 中，D 是边BC 的中点，BA a =，AD b =，那么BC 等于…（）.（A ）a +b ；（B ）12（a +b）；（C ）2（a +b ）；（D ）—（a +b）．6. 气象台预报“本市明天降水概率是80%”，对此消息，下面几种说法正确的是…（）.(A) 本市明天将有80%的地区降水； (B) 明天降水的可能性比较大； (C) 本市明天降有80%的时间降水； (D) 明天肯定下雨.二、填空题：（本大题共12题，每题4分，满分48分）[请将结果直接填入答题纸的相应位置]ADBC 第5题7．计算：23(2)a a ⋅= .8．生物学家发现一种病毒的长度约为0.0043mm ，用科学记数法表示为 = mm . 9．当a=2时，1a -= ．10．不等式组24,50x x >-⎧⎨-<⎩的解集是 .11．一元二次方程20(0)ax bx c a ++=≠有一根为零的条件是 . 12．将图形（右）绕中心旋转180°后的图形是（画出图形）． 13．函数312y x =-的定义域是 . 14. 已知一次函数3y kx =+的图像与直线2y x =平行，那么此一次函数的解析式为 . 15．梯形ABCD 中，AD ∥BC ，如果∠A=5∠B ，那么∠B= 度.16. 在四边形ABCD 中，如果AB ∥CD ，AB=BC ，要使四边形ABCD 是菱形，还需添加一个条件，这个条件可以是 .17．如果一斜坡的坡度为i =1∶3，某物体沿斜面向上推进了10米，那么物体升高了米.18．中心角是40°的正多边形的边数是 .三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分） 19．化简：1(1)11a a a -÷++.20．解方程组：2224,2 1.x y x xy y +=⎧⎨-+=⎩第12题第21题21．如图，在平行四边形ABCD 中，点G 是BC 延长线上一点，AG 与BD 交于点E ，与DC 交于点F ，如果AB=m ，CG =12BC ，求：（1）DF 的长度；（2）三角形ABE 与三角形FDE 的面积之比.22. 如图所示，已知在△ABC 中，AB=AC ，AD 是∠BAC的平分线，交BC 于点D ，AN 是△ABC 外角∠CAM 的平分线，CE ⊥AN ，垂足为点E ， (1)求证：四边形ADCE 是矩形；(2)当△ABC 满足什么条件时，四边形ADCE 是一个正方形？请加以证明．23．为了引导学生树立正确的消费观，某机构随机调查了一所小学100名学生寒假中使用零花钱的情况（钱数取整数元），根据调查制成了频率分布表，如下：组别分组频数频率ABCD EM N第22题(1)补全频率分布表；(2)使用零化钱钱数的中位数在第组；(3)此机构认为，应对消费200元以上的学生提出勤俭节约的建议，那么应对该校800名学生中约名学生提出此项建议．24. 如图，在平面直角坐标系中，点O为原点，已知点A的坐标为（2，2），点B、C在x轴上，BC=8，AB=AC，直线AC与y轴相交于点D．1）求点C、D的坐标；2）求图象经过B、D、A三点的二次函数解析式及它的顶点坐标．25．如图，已知Sin∠ABC=13，⊙O的半径为2，圆心O在射线BC上，⊙O与射线BA相交于1 0.5—50.5 0.12 50.5—100.5 20 0.23 100.5—150.54 150.5—200.5 305 200.5—250.5 106 250.5—300.5 5合计D CFAB OEGyOB CDxA第24题E、F两点，EF=23，（1）求BO的长；（2）点P在射线BC上，以点P为圆心作圆，使得⊙P同时与⊙O和射线BA相切，求所有满足条件的⊙P的半径.BC上2009学年度第二学期普陀区九年级质量调研数学试卷参考答案及评分说明一、单项选择题：（本大题共6题，每题4分，满分24分）1．(A) ； 2．(B) ； 3．(C)； 4．(D)； 5．(C) ； 6．(B) .二、填空题：（本大题共12题，每题4分，满分48分）7. 45a ； 8. 34.310-⨯； 9. 1；10. 25x -<<； 11. c =0； 12．；13．2x ≠； 14．23y x =+； 15． 30； 16．AB =CD 等； 17．5 ； 18． 9．三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分） 19．解: 原式=1()(1)11a a a a a +-+++…………………………………………………………4′（各2分） =(1)a a -+ …………………………………………………………………………………2′ =1a a -- ……………………………………………………………………………………2′=1-. ………………………………………………………………………………………2′20．2224,(1)2 1.(2)x y x xy y +=⎧⎨-+=⎩解：由（2）式得到：2()1x y -=，…………………………………………………………………………1′ 再得到 1x y -=或者1x y -=-，……………………………………………………………1′与（1）式组成方程组：24,1.x y x y +=⎧⎨-=⎩或24,1.x y x y +=⎧⎨-=-⎩……………………………………………3′解得：112,1.x y =⎧⎨=⎩，222,35.3x y ⎧=⎪⎪⎨⎪=⎪⎩……………………………………………………………………4′经检验，原方程组的解是：112,1.x y =⎧⎨=⎩，222,35.3x y ⎧=⎪⎪⎨⎪=⎪⎩……………………………………………1′21．解：（1）∵四边形ABCD 是平行四边形，∴AB=CD=m ，AB ∥CD ． ………………………………2′∵CG =12BC ， ∴CG =13BG ，………………………………………………1′∵AB ∥CD ，∴CF CGAB BG=．…………………………………………………………………………………1′ ∴13CF m =， …………………………………………………………………………………1′∴23DF m =．…………………………………………………………………………………1′(2)∵AB ∥CD ，∴△ABE ∽△FDE ，………………………………………………………………………………2′ ∴239()24ABE FDE S S ∆∆==. …………………………………………………………………………2′ ∴ 三角形ABE 与三角形FDE 的面积之比为9∶4.22．证明：(1) ∵AB=AC ，AD 是∠BAC 的平分线，∴AD ⊥BC ， ………………………………………1′ ∴∠ADC =90°． ∵AD 是∠BAC 的平分线，∴∠1=12∠BAC ，…………………………………1′同理：∠2=12∠MAC ．…………………………………1′∵∠BAC +∠MAC=180°． ∴∠1+∠2=90°．即∠EAD =90°． …………………………………1′ ∵CE ⊥AN ，∴∠AEC =90°． …………………………………1′ ∴四边形ADCE 是矩形．…………………………1′（2）当△ABC 是等腰直角三角形时，四边形ADCE 是一个正方形．……………………………1′ 证明：∵∠BAC =90°，AB=AC ，AD 是∠BAC 的平分线，∴AD 是斜边BC 上的中线，A BCD EM N第22题12∴AD=DC ．……………………………………………………………………………………1′∵四边形ADCE 是矩形， …………………………………………………………………1′∴四边形ADCE 是正方形．…………………………………………………………………1′23．解：（1）见右，每个数1分，共8分；（2） 3；…………………………………………2′ （3）120．…………………………………………2′24．解：（1）过点A 作AE ⊥x 轴，垂足为点E ．…………1′∵点A 的坐标为（2，2），∴点E 的坐标为（2，0）．……………………1′ ∵AB=AC ，BC =8，∴BE=CE ， ……………………………………1′点B 的坐标为（-2，0）， ……………………1′ 点C 的坐标为（6，0）．………………………1′设直线AC 的解析式为：y kx b =+（0k ≠），将点A 、C 的坐标代入解析式，得到： 132y x =-+．………………………1′ ∴点D 的坐标为（0，3）． …………………1′（2）设二次函数解析式为：2y ax bx c =++（0a ≠）， ∵ 图象经过B 、D 、A 三点，组别分组频数频率1 0.5—50.5 102 50.5—100.53 100.5—150.5 250.25 4 150.5—200.50.3 5 200.5—250.50.1 6250.5—300.50.05 合计 1001yO BCDxA 第24题E∴4230,423 2.a b a b -+=⎧⎨++=⎩…………………………………………………………………2′解得：1,21.2a b ⎧=-⎪⎪⎨⎪=⎪⎩………………………………………………………1′∴此二次函数解析式为：211322y x x =-++． ………………………1′ 顶点坐标为（12，138）． ………………………………………………1′25．（1）解：联接EO ，过点O 作OH ⊥BA 于点H . ………………2′∵EF =23，∴EH =3.………………………………1′∵⊙O 的半径为2，即EO =2，∴OH=1. …………………………………………………1′在Rt△BOH 中，∵Sin∠ABC=13，………………………………………1′ ∴BO=3. …………………………………………………1′（2）当⊙P 与直线相切时，过点P 的半径垂直此直线. …………………………………………1′ （a ）当⊙P 与⊙O 外切时，①⊙P 与⊙O 切于点D 时，⊙P 与射线BA 相切，…………………………………………………1′ Sin∠ABC=113P P r r =-，得到：14P r =；………………………………1′ ②⊙P 与⊙O 切于点G 时，⊙P 与射线BA 相切， Sin∠ABC =133P P r r =+，得到：52P r =. ………………………………1′ (b ) 当⊙P 与⊙O 内切时，DCFABO第25题 E GH①⊙P与⊙O切于点D时，⊙P与射线BA相切，……………………………1′Sin∠ABC =113PPrr=+，得到：12Pr=；………………………………1′②⊙P与⊙O切于点G时，⊙P与射线BA相切，Sin∠ABC =153PPrr=-，得到：54Pr=. ………………………………1′综上所述：满足条件的⊙P的半径为14、52、12、54.……………………1′谢谢大家。

上海市普陀区九年级下学期质量调研(二模)英语试题

九年级下学期质量调研(二模)英语试题Part 1 Listening (第一部分听力)I.Listening comprehension (听力理解) (共30 分)A.Listen and choose the right picture (根据你听到的内容，选出相应的图片) (6分)1. _______2. _______3. _______4. _______5. _______6. _______B.Listen to the dialogue and choose the best answer to the question you hear (根据你听到的对话和问题，选出最恰当的答案) (8分)7. A. By car. B. By underground. C. By bus. D. By bike.8. A. A cook. B. A doctor. C. An engineer. D. An actor.9. A. The dirty streets. B. The busy city life. C. The bad weather. D. The poor bus services.10. A. Mother and son. B. Husband and wife. C. Teacher and student. D. Customer and clerk.11. A. Nice trips. B. Favourite sports. C. Public places. D. Healthy drinks.12. A. At the restaurant. B. At the library.C. At the supermarket.D. At the post office.13. A. See a film. B. Make a pizza.C. Read a book.D. Finish a book review.14. A. Tim went to the library to have a talk with Moly.B. Moly missed the art lessons in the afternoon.C. The monitor organized a discussion about the spring outing.D. The two speakers had a meeting on the art projects.C.Listen to the passage and tell whether the following statements are true or false (判断下列句子是否符合你听到的内容, 符合的用“T”表示，不符合的用“F”表示) (6分)15. Sara used to buy lottery tickets (彩票) and could always win some money.16. Once Sara won $55 million and was suddenly known by many people.17. Over 200 people sent Sara e-mails to ask for suggestions about how to win lottery tickets.18. Sara moved to another town in order to keep away from the news reporters.19. Sara set up a group to help poor students start their business after college.20. Sara is famous because she has done some good things with the money she has.D.Listen to the passage and complete the following sentences (听短文，完成下列句子。

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2010学年度第二学期普陀区初三质量调研
数学试卷
（满分150分，考试时间100分钟）
考生注意：
1．本试卷含三大题，共25题；
2．答题时，考生务必按答题要求在答题纸规定的位置上作答，在草稿纸、本试卷上答题一律无效；
3．除第一、二大题外，其余各题如无特别说明，都必须在答题纸的相应的位置上写出证明或计算的主要步骤．
一、选择题（本大题共6题，每题4分，满分24分）
【下列各题的选择项中，有且只有一个选择项是正确的，选择正确项的代号并填涂在答题纸的相应位置上．】 1. 下列计算正确的是
(A ) 347x x x += ； (B ) 44x x x ÷=； (C ) 325x x x ⋅=； (D ) 325()x x =． 2. 一元二次方程221x x -=的常数项是
(A ) -1； (B ) 1； (C ) 0； (D ) 2．
3. 某一段时间，小芳测得连续五天的日最高气温后，整理得出下表（有两个数据被遮盖）．
被遮盖的两个数据依次是
(A ) 3℃，2； (B ) 3℃，4； (C ) 4℃，2； (D ) 4℃，4．
4. 如果两圆的半径分别是2 cm 和3cm ，圆心距为5cm ，那么这两圆的位置关系是 (A ) 内切； (B ) 相交； (C ) 外切； (D )
5. 如图1，把一块直角三角板的直角顶点放在直尺的一边上，如果∠1=32o ，那么∠2的度数是
(A ) 32o
； (B ) 58o
； (C ) 68o
； (D ) 60o
．
6. 如图2，△ABC 中，点D 、E 分别是AB 、AC 的中点，由此得到结论：①BC =2DE ； ②△ADE ∽△ABC ；③
AD AB AE
AC
=；④=1:3A D E D B C E S S 四边形：．其中正确的有
（A ）4个；（B ）3个；（C ）2个；（D ）1个．
二、填空题（本大题共12题，每题4分，满分48分）
【请将结果直接填入答题纸的相应位置】
7.计算：
3
12-⎛⎫ ⎪
⎝⎭
＝ ▲ .
8. 分解因式：324a ab -＝ ▲ . 9. 方程
x =
的根是 ▲ .
10. 成功、精彩、难忘的中国2010年上海世博会，众多境外参观者纷至沓来。

国家统计局上海调查总队调查显示：上海世博会境外参观者近4250000人次.4250000人次可用科学记数法表示为 ▲ 人次. 11. 已知函数 1()2f x x
=
-
，那么f ＝ ▲ .
12. 在平面直角坐标系中，反比例函数k y x
= ( k ＜0 ) 图像的两支分别在第 ▲ 象限.
13. 一件卡通玩具进价a 元，如果加价60%出售，那么这件卡通玩具可盈利 ▲ 元. 14. 在 5张完全相同的卡片上分别画上等边三角形、平行四边形、直角梯形、正六边形和圆．在看不见图形的情况下随机摸出1张，这张卡片上的图形是中心对称图形的概率是 ▲ .
15. 如图3，已知A B A D =，在不添加任何辅助线的前提下，要使△≌△A B C A D C 还需添加一个条件，这个条件可以是 ▲ ．(只需写出一个)
16. 如图4，在△A B C 中，边B C 、A B 上的中线A D 、C E 相交于点G ，设向量AB a =
，
BC b = ，如果用向量a ，b 表示向量A G ，那么A G
= ▲ ．
17. 等腰梯形ABCD 中，AD BC ∥，45410°B AD BC ∠===，，，那么梯形ABCD 的周长是 ▲ ．
18.如图5，直角△A B C 中，90A C B ∠=︒，1A C B C ==， D
E F 的圆心为A ，如果图中两个阴影部分的面积相等，那么A D 的长是 ▲ .（结果保留π)
E D
C
B
A 图2
三、解答题（本大题共7题，满分78分） 19. （本题满分10分）
解不等式组：245(2),2
1.
3x x x x ⎧
++⎪
⎨
-<⎪⎩
≤①
②
把它的解集在数轴上表示出来，并求它的整数解.
20.（本题满分10分）
解方程： 2
33230
2121x x x x ⎛⎫⎛⎫--= ⎪ ⎪--⎝⎭
⎝⎭．
21.（本题满分10分，第（1）小题7分，第（2
）小题3分）
如图6，矩形纸片ABCD 的边长AB =4，AD =2．翻折矩形纸片，使点A 与点C 重合，折痕分别交AB 、CD 于点E 、F ，
（1）在图6中，用尺规作折痕EF 所在的直线（保留作图痕迹，不写作法），并求线段EF 的长；
（2）求∠EFC 的正弦值．
图4
图5
B
A
F
图6
D C
B
A
D
C
B
A
图3
22.（本题满分10分，第(1)(2)小题满分各3分，第(3)小题满分4分）
国家教育部规定“中小学生每天在校体育活动时间不低于1小时”．2011年，为了了解我市毕业班学生体育活动情况，随机对我市240名毕业班学生进行调查，调查内容为：第一问你平均每天在校参加体育活动的时间是多少?
A ．超过1小时
B ．0.5～1小时
C ．低于0.5小时如果第一问没有选A ，请继续回答第二问
第二问在校参加体育活动的时间没有超过1小时的原因是什么？ A ．不喜欢 B ．没时间 C ．其他以下是根据所得的数据制成的统计图的一部分．
根据以上信息，解答下列问题：（1）每天在校锻炼时间超过1小时的人数是；（2）请将条形图补充完整；
（3）2011年我市初中毕业生约为8.4万人，请你估计今年全市初中毕业生中每天锻炼时间低于0.5小时的学生约有万人．
23．（本题满分12分，第(1)小题满分6分，第(2)小题满分6分）如图7，等腰三角形ABC 中，AB =AC ，AH 垂直BC ，点E 是AH 上一点，延长AH 至点F ，使FH =EH ，（1）求证：四边形EBFC 是菱形；
（2）如果B A C ∠=E C F ∠，求证：A C C F ⊥．
B
A
第一问各选项人数分布扇形图
每天在校锻炼没有超过1小时原因分布条形图
人数
24．（本题满分12分，第(1)小题4分，第(2)小题4分、第(3)小题4分）
如图8，在平面直角坐标系xOy
中，半径为的C 与x 轴交于()1,0A -、()3,0B 两点，且点C 在x 轴的上方．（1）求圆心C 的坐标；
（2）已知一个二次函数的图像经过点A 、B 、C ，求这二次函数的解析式；
（3）设点P 在y 轴上，点M 在（2）的二次函数图像上，如果以点P 、M 、A 、B 为顶点的四边形是平行四边形，请你直接写出点M 的坐标.
25．（本题满分14分，第(1)小题4分，第(2)小题①
直角三角板ABC 中，∠A =30°，BC ＝1.将其绕直角顶点C 逆时针旋转一个角α（0120α︒<<︒且α≠ 90°），得到Rt △''A B C ，
（1）如图9，当''A B 边经过点B 时，求旋转角α的度数；
（2）在三角板旋转的过程中，边'A C 与AB 所在直线交于点D ，过点 D 作DE ∥''A B 交'C B 边于点E ，联结BE .
①当090α︒<<︒时，设AD x =，BE y =，求y 与x 之间的函数解析式及定义域；
②当13
BDE ABC S S = 时，求A D 的长.
C B
A
C B
A
图9
备用图
备用图。