20142015学年浙江省五校第一学期联盟学校高一期中联考
浙江省衢州市五校2014-2015学年高一上学期期中联考英语试题 Word版含答案

浙江省衢州市五校2014-2015学年高一上学期期中联考英语试题一.单项选择(满分10分,每题0.5分)1. — Must I finish my homework before class is over?— No, you ______. You can hand it in tomorrow.A. mustn’tB. shouldn’tC. can’tD. needn’t2. I’d like to know ________ Chinese.A. when he began to learnB. where did he begin to learnC. when did he begin learningD. for how long he began to learn3. He asked , “ Are you a Party member or a League member?”→He asked me _________.A. am I a Party member or a League memberB. was I a Party member or a League memberC. if I was a Party member or a League memberD. whether was I a Party member or a League member.4. My uncle _____ to see me. He'll be here soon.A. comesB. is comingC. had comeD. came5.--Look !The telephone is broken .Someone damaged it ______purpose.--That may be right. But perhaps it was broken ________ accident.A .on ;by B. by ; by C. on ; on D .by ;on6.---What do you think of my article, professor?---The former part is well written but _____ is just so so.A. the laterB. the last partC. latestD. the latter7.Try to _____ the children down. They’re too excited.A. putB. calmC. pullD. push8.Have you _____ your things, Bob? The train is leaving at 2:30 this afternoon, so we don’t have too much time.A. added upB. hidden awayC. set downD. packed up9. —What’s the matter with you, Sandy?—I’m _____ a bad cold. I think I am dying.A. recovering fromB. suffering fromC. catching up withD. getting into10. _____ your classmates and you will make more good friends.A. Worry aboutB. Fall in loveC. Think aboutD. Get along well with11. —Have you finished your experiment report, Jane?—Oh, my God. I’ve _____ forgotten all about that.A. stronglyB. extremelyC. entirelyD. freely12.If you can’t _____ a better plan, we have to carry out the present one.A. come along withB. come up withC. come acrossD. come about for13. She didn’t come to his birthday party just ______what he had said to her theday before.A. becauseB. because ofC. as result ofD. thanks of 14.She pretended to be calm but _______she was more than nervous at the time she was being questioned.A. in actualB. actuallyC. as matter of factD. in a fact 15.Everybody has ______ to play _____ our environment.A. a part; to protectB. a role; in protectingC. part; in protectingD. a role; to protect16.When the expression first came into being, people refused to use it but _____ they began to accept it.A. usuallyB. graduallyC. frequentlyD. quickly17.--- Im afraid I can not return the book to you before Friday----____________.A.Dont be afraid .B.Be carefulC.Forget itD.Take your time18.---.Do you mind my turning off the light?----_____________.Im reading a book.A.No,not at all.B.Of course not.C.Id rather you didn't .D.Yes,please.19. He asked me ________ with me.A. what the matter isB. what the mater wasC. what is the matterD. what was the matter20. 7. Look out! That tree _____ fall down.A. is going toB. will beC. shallD. would二.完型填空(满分20分,每小题1分)There was a boy who was sent by his parents to a boarding school (寄宿学校). 21 being sent away, this boy was the 22 student in his class. He was at the top in every 23 always with high marks.But the boy changed after 24 home and attending the boarding school. His grades started 25 . He hated being in a 26. He was lonely all the time. And there were especially dark times when he 27 committing suicide (自杀). All of this was because he felt 28 and no one loved him.His parents started 29 about the boy. But they even did not know what was 30 with him. So his dad decided to travel to the boarding school and 31 him.They sat on the bank of the lake near the school. The father started asking him some casual questions about his classes, teachers and 32. After some time his dad said, “Do you know, son, why I am here today?”The boy answered back, “To 33 my grades?”“No, no,” his dad replied. “I am here to tell you that you are the most 34 person for me. I want to see you 35. I don’t care about grades. I care about you.I care about your happiness. YOU ARE MY LIFE.”These words 36 the boy’s eyes to be filled with tears. He 37 his dad. The y didn’t say anything to each other for a long time.Now the boy had 38 he wanted. He knew there was someone on this earth who cared for him deeply. He 39 the world to someone. And today this young man is in college at the top of his class and no one has ever seen him40!21. A. After B. Before C. When D. While22. A. hardest B. naughtiest C. brightest D. dullest23. A. exam B. activity C. game D. class24. A. coming B. returning C. leaving D. reaching25. A. rising B. increasing C. reducing D. dropping26. A. group B. term C. company D. party27. A. led to B. felt like C. thought back D. looked for28. A. worthless B. careless C. concerned D. annoyed29. A. caring B. turning C. worrying D. speaking30. A. crazy B. true C. possible D. wrong31. A. talk with B. listen to C. tell to D. care about32. A. family B. friends C. study D. grades33. A. realize B. analyze C. check D. test34. A. outstanding B. important C. famous D. familiar35. A. happy B. excellent C. interested D. satisfied36. A. caused B. wanted C. encouraged D. forced37. A. answered B. ignored C. hated D. hugged(拥抱)38. A. nothing B. something C. everything D. anything39. A. showed B. meant C. intended D. expressed40. A. sad B. angry C. pleasant D. joyful三.阅读理解(满分50分,每小题2分)第一节:(满分40分共20小题)AIt’s the lunchtime break at Shanghai Xianxia Middle School. No mobile phones can be heard ringing anywhere. The common sight of crowds of children chatting on their phones or sending short messages has disappeared.A grade-2 student said, “I couldn’t concentrate during classes if the cell phone was with me. I couldn’t help checking if there were messages or missed phone calls.I even played games on the phone sometimes.”The school authorities say they feel the ban is necessary to keep order in class. They even gave out an open letter to remind parents not to let their children bring mobile phones to school. More than 96 percent of parents say they welcome the school decision. The school is also being flexible (灵活的) in implementing the ban. Those students who live far from school are allowed to bring mobile phones to contact their parents. But they still have to switch them off in classrooms.Medical experts have also welcomed the school decision. They say too much dependence on mobile phones can cause many psychological problems in teenage students.41. The grade-2 student thought that _______.A. the mobile phone should be on during classesB. it is good to play cell phone games sometimesC. the mobile phone is helpful to her studiesD. it is no good using the cell phone at school42. According to the passage, the students use their mobile phones except _______.A. contacting their parentsB. cheating in examsC. sending short mes sagesD. playing games43. Which of the following is true according to the passage?A. All the parents welcome the school decision.B. Some students can bring mobile phones to school.C. Medical experts are against the school decision.D. No one is allowed to bring his mobile phone to school.44. What does the underlined word “implementing” in paragraph 3 probably mean?A. Carrying outB. Giving upC. Making upD. Finding out45.The passage mainly tells us _______.A. the mobile phone is a big trouble to teenage studentsB. the use of the mobile phone can cause mental problemsC. about a ban on the mobile phone in a middle schoolD. a story happening at Shanghai Xianxia Middle SchoolBIn order to know a foreign language thoroughly(完全地),four things are necessary.First,we must understand the language when we hear it spoken. Secondly,we must be able to speak it ourselves, with confidence(自信) and without hesitation (犹豫). Thirdly, we must do much reading. Finally, we must be able to write it. We must be able to make sentences that are correct in grammar.There are no shortcuts to success in language learning. A good memory is a great help, but it is not enough only to memorize the rules from a grammar book. It is not much learning by heart long lists(一览表) of words and their meanings, studying the dictionary and so on. We must learn by using the language.If we are pleased with a few rules we have memorized, we are not really learning the language.We must “learn through use.” Practice is important. We must practise speaking and writing the language whenever we can.46. The most important things to learn a foreign language are _____.A. understanding and speakingB. listening, speaking, reading and writingC. writing and understandingD. memorizing and listening47. Someone hears and writes English very well, but he speaks it very badly. This is because _____.A. he doesn't understand the language when he hears it spokenB. he doesn't have a good memoryC. he always remembers lists of words and their meaningsD. he often hesitates(犹豫) to practise speaking it48. One can never learn a foreign language well by_____.A. doing much practice B. studying the dictionaryC. learning through use D. using the language49. Which is the most important in learning a foreign language?A. A good memory.B. Speaking. C. Practice. D. Writing.50.“Learn through use” means ______.A. we use a language in order to learn itB. we learn a foreign language in order to use itC. we can learn a language well while we are keeping using itD. B and C.CChristian Eijkman, a Dutch doctor, left the Netherlands for the island of Java. Many people on the island had a disease called beri-beri. He was going there to try and find a cure.At first, Eijkman thought some kind of germ (细菌) caused beri-beri. He raised some chickens. He didn’t eat them, but made experiments on them. The local people were quite surprised at that. One day he noticed that his chickens became sick when they were fed the food most Javanese ate — refined white rice (精炼米). When he fed them with unrefined rice, also known as brown rice, they recovered. Eijkman realized that he had made an important discovery — that some things in food could prevent disease. These things were named vitamins (维生素). The Javanese were not getting enough vitamins because they had actually removed the part that contains vitamins. Later, other diseases were also found to be caused by the lack of vitamins in a person’s food.Today many people know the importance of vitamins and they make sure they have enough vitamins from the food they eat. If they don’t, they can also take vitamin pills.51. The underline d word “cure” in Paragragh 1 probably means ______.A. a medical treatmentB. a kind of vitaminC. a kind of germD. a kind of rice52. Christian Eijkman went to the island of Java to ______.A. spend his holidayB. find ways to grow better cropsC. do some research about the islandD. help the Javanese with their illness53. Why did Christian Eijkman raise some chickens?A. To eat them.B. To carry out his experiments.C. To give the Javanese a surprise.D. To make money by selling them.54. If a person doesn’t get enough vitamins in his diet, he’d better ______.A. eat more riceB. eat more meatC. eat some chickenD. eat vitamin pills55. We can learn from the passage that ______.A. beri-beri was caused by chickensB. the Javanese didn’t like vitaminsC. Christian Eijkman’s experiment was successfulD. the Javanese’s disease was caused by a kind of germDAmerica is a mobile society. Friendships between Americans can be close and real, yet disappear soon if situations change. Neither side feels hurt by this. Both mayexchange Christmas greetings for a year or two, perhaps a few letters for a while — then no more. If the same two people meet again by chance, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand, because friendships between us flower more slowly but then may become lifelong feelings, extending (延伸) sometimes deeply into both families.Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. They will enjoy welcoming us and be pleased if we accept their hospitality (好客) easily.Another difficult point for us Chinese to understand Americans is that although they include us warmly in their personal everyday lives, they don’t show their politeness to us if it requires a great deal of time. This is usually the opposite of the practice in our country where we may be generous with our time. Sometimes, we, as hosts, will appear at airports even in the middle of the night to meet a friend. We may take days off to act as guides to our foreign friends. The Americans, however, express their welcome usually at homes, but truly can not manage the time to do a great deal with a visitor outside their daily routine. They will probably expect us to get ourselves from the airport to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes, the welcome will be full, warm and real. We will find ourselves treated hospitably.For the Americans, it is often considered more friendly to invite a friend to their homes than to go to restaurants, except for purely business matters. So accept their hospitality at home!56. The writer of this passage must be ______.A. an AmericanB. a ChineseC. a professorD. a student57. Which of the following statements is TRUE according to the passage?A. Friendships between Americans usually extend deeply into their families.B. Friendships between Americans usually last for all their lives.C. Americans always show their warmth even if they are very busy.D. Americans will continue their friendships again even after a long break.58. From the last two paragraphs we can learn that when we arrive in America to visitan American friend, we will probably be ______.A. warmly welcomed at the airportB. offered a ride to his homeC. treated hospitably at his homeD. treated to dinner in a restaurant59. The underlined words “generous with our time” in Paragraph 3 probably mea n ______.A. strict with timeB. serious with timeC. careful with timeD. willing to spend time60. A suitable title for this passage would probably be “______”.A. Friendships between ChineseB. Friendships between AmericansC. Americans’ hos pitalityD. Americans’ and Chinese’s views of friendships第二节(共5小题:每小题2分,满分10分)[w~ww.zzs^tep*&.com@]根据对话内容,从对话后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。
浙江省五校2014届高三第一次联考英语试题(含答案)

2013学年浙江省第一次五校联考英语试题卷选择题部分(共80分)第一部分:英语知识运用(共两节,满分30分)第一节:单项填空(共20小题;每小题0.5分,满分10分)从A、B、C和D四个选项中,选出可以填入空白处的最佳选项,并在答题纸上将该选项标号涂黑。
1.— Are you sure the delegation will come to our school next week?— _____. The head of it has just emailed me about the departure time of their flight.A. No wonderB. You betC. Don’t mention itD. Definitely not2. — Dad, would you please buy some strawberries for me? I love them.—I’d like to, but they are not _____ in winter.A. accustomedB. convenientC. casualD. available3. — But for your timely warning, we _____ into great trouble.—Well, you know we’re friends.A. would getB. must have gotC. would have gotD. can’t have got4. When you talk about a person’s _____, you are referring to the country, race, or social class oftheir parents or ancestors.A. originB. nationalityC. generationD. relation5. His promise _____ he would give away half of the year’s income to the disabled turned out a l ie,_____ made the public feel cheated.A. which; whatB. that; whichC. what; whichD. which; that6. The final score of the basketball match was 96-97. We were only _____ beaten.A. tightlyB. slightlyC. narrowlyD. roughly7. Mark has come in his raincoat and boots, _____ for rain.A. preparingB. preparedC. to prepareD. prepares8. — Did you have a good time last night?—Yes, I did. It was a long time since I _____ myself.A. haven’t enjoyedB. didn’t enjoyC. enjoyD. had enjoyed9. After a day’s hard work, Mary went to the nearby shop to _____ herself to a strawberry ice cream.A. satisfyB. treatC. provideD. offer10. So suddenly _____ the disease that the whole family were at a great loss.A. did he catchB. he caughtC. was he caughtD. he was caught11. The doctor will see you again next week. _____, you must rest as much as possible.A. SomehowB. HoweverC. MeanwhileD. Indeed12. Mark lives in a big pleasant room ______ approximately 5 meters by 6 meters.A. measuresB. measuringC. to be measuredD. having measured13. Since the baby milk powder was found to be polluted, there has been universal doubt _____ other foodproducts are safe _____.A. that; to eatB. whether; to be eatenC. whether; to eatD. that; to be eaten14. The company has changed some of its working practices _____ complaints and criticism fromthe customers.A. in respect toB. in return forC. in exchange forD. in response to15. The viewers will have _____ second chance to watch Voice of China on _____ Channel 4tonight.A. a; theB. the; theC. the; /D. a; /16. The official website of Beijing Municipal Education Commission has recently published areform plan to reduce the scores for English to 100 points from the current 150 points, _____ that is bound to cause an overwhelming stir across the country.A. oneB. whichC. thisD. it17. Hard work and lack of sleep have _____ her beauty and youth in recent years.A. worn outB. tried outC. made outD. sent out18. — How is everything going on with you in the UK?— Quite well. Not so smoothly as I hoped, _____.A. insteadB. thoughC. eitherD. too19. — Do you have any problems when you _____ this job?—Well, I’m considering the salary and working conditions.A. offeredB. will be offeredC. are offeredD. offer20. —We need a room for tonight, and I’d like to take a chance to check in without reservation.—Don’t you know about the jammed hotels in this season? ______.A. Better play it safeB. Do as you pleaseC. No problemD. Think nothing of it第二节:完形填空(共20小题;每题1分,满分20分)阅读下面短文,掌握其大意,然后从21-40各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题纸上将该选项标号涂黑。
2014高一五校联考答案

2014——2015学年上期期中高一年级五校联考语文学科答案及评分标准一、现代文阅读(9分,每小题3分)1、B.(“那些追求自然的画作说不上有意境,难以打动人”,理解有误。
)2、A.(“不太追求描摹景物的真实度”错。
)3.D(A莫奈“从自然的光色变幻中抒发瞬间的感觉” B毕加索“物体的各个角度交错迭放造成了许多的垂直与平行的线条角度”C、达芬奇“画像在比例、透视等方面都正确”D、郑板桥)二、古代诗文阅读(36分)4.A(B.屏蔽像屏风一样遮挡着。
C.暴师:驻军D属:一类人)5、D(高祖要求在军中将樊哙问斩)6、C7.(1)刘邦率一百多名随从通过项伯(赴鸿门)面见项羽,为(子虚乌有的)闭关事谢罪。
(关键词:从、因、谢各1分,大意2分。
关键词从严,大意从宽)(2)这一天若不是樊哙闯进大营责备项羽的话,沛公的事业几乎就完了。
(关键词:微、诮让、殆各1分,大意2分。
关键词从严,大意从宽)(附:译文)舞阳侯樊哙是沛县人,以杀狗卖狗肉为生,曾经和汉高祖一起隐藏在乡间。
当初跟从高祖在丰县起兵,攻取了沛县。
高祖做了沛公,就以樊哙为舍人。
接着,他跟随沛公攻打胡陵、方与,回过头来又镇守丰县,在丰县城下,击败了泗水郡郡监所带领的军队。
项羽驻军戏下,准备进攻沛公。
沛公带领一百多骑兵来到项营,通过项伯的关系面见项羽,向项羽谢罪,说明自己并没有封锁函谷关,不让诸侯军进入关中的事。
项羽设宴犒赏军中将士,正在大家喝得似醉非醉的时候,亚父范增想谋杀沛公,命令项庄拔剑在席前起舞,想乘机击杀沛公,而项伯却一再挡在沛公的前面,遮蔽着他。
这时只有沛公和张良在酒席宴中,樊哙在大营之外,听说事情紧急,就手持铁盾牌来到大营前。
守营卫士阻挡樊哙,樊哙径直撞了进去,站立在帐下。
项羽注视着他,问他是谁。
张良说:“他是沛公的参乘樊哙。
”项羽称赞道:“真是个壮士!”说罢,就赏给他一大碗酒和一条猪前腿。
樊哙举杯一饮而尽,然后拔出宝剑切开猪腿,把它全部吃了下去。
浙江省2015届高三第一次五校联考英语试题 Word版含答案

2014学年浙江省第一次五校联考英语试题卷第I卷(共80分)第一部分:英语知识运用(共两节,满分30分)第一节:单项填空(共20小题;每小题0.5分,满分10分)从A、B、C和D四个选项中,选出可以填入空白处的最佳选项,并在答题纸上将该项选项的标号涂黑。
1. — Jennifer, you seem to be overjoyed.— ______? I have just received the offer from the National University of Singapore.A. So whatB. Guess whatC. What ifD. What for2. Zinio is ______ platform for digital magazines, with more than 5,500 magazines from ______ wide range of publishers.A. a; aB. a; theC. the; aD. the; the3. It would be a good idea to use a plastic bottle, ______ cut off, as a container to grow young plants in.A. of which topB. whose topC. the top isD. its top4. Sherry has taught me that no matter how bad things seem they can ______ in the end.A. figure outB. make outC. work outD. pick out5. They ______ on the program for almost one week before I joined them, and now we ______ on it as no good results have come out so far.A. had been working; are still workingB. had worked; were still workingC. have been working; have workedD. have worked; are still working6. The Internet allows us quick ______ to all the data and research findings in the fields available worldwide.A. entranceB. chargeC. accessD. advance7.Over 1.8 million of Hong Kong’s residents have sent out a clear message against the movement ______ they want an end to disorders and a return to normal life.A. whatB. thatC. whichD. where8. Good news never goes beyond the gate, ______ bad news spreads far and wide.A. whenB. asC. whileD. before9. A recent study shows that being pulled into the world of a fascinating novel ______ make some actual, measurable changes in the brain.A. canB. needC. shallD. should10. The head teacher was strict. He ordered that boy students ______ long hair.A. don’t wearB. didn’t wearC. not to wearD. not wear11. Evidence provided by the school has proved that John was once a good student ______ grades and attendance fell as he became addicted to playing computer games.A. whichB. of whichC. of whomD. whose12. Each spring the apple tree in my garden blossoms so ______ that the air becomes filled with the sweet of apple.A. automaticallyB. approximatelyC. apparentlyD. abundantly13. ______ they believe enjoying a sports team is the most ideal approach to making new friends, I prefer to attend community activities to widen my social circle.A. AsB. AlthoughC. As ifD. Only if14. Everything he ______ away from him before he returned to his hometown.A. tookB. had takenC. had been takenD. had had been taken15. ______ early warnings from forecasters, residents were able to prepare and no deaths or serious injuries were reported.A. In spite ofB. Thanks toC. Regardless ofD. According to16. To help children become independent, parents should ______ children to figure out how to solve problems on their own.A. permitB. guideC. commandD. expect17. The students are looking forward to having an opportunity ______ society for real-life experience.A. exploringB. exploredC. to exploreD. having explored18. One’s life has value ______ one brings value to the life of others.A. as long asB. as far asC. as soon asD. as well as19. The point is that you should be happy with what you already have and not risk losing it by being ______ and trying to get more.A. cautiousB. considerateC. sensitiveD. greedy20. —You mean he won’t come to our party?—Yeah, ______. He has a very important meeting to attend.A. that’s all rightB. you got itC. it doesn’t matterD. it depends第二节:完形填空(共20小题;每小题1分,满分20分)阅读下面短文,掌握其大意,然后从21~40各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题纸上将该项选项的标号涂黑。
2014-2015年浙江省衢州市五校联考高三(上)期中数学试卷及参考答案(文科)

2014-2015学年浙江省衢州市五校联考高三(上)期中数学试卷(文科)一、选择题:本大题共10小题,每小题5分,共50分.1.(5分)已知向量=(1,﹣2),=(﹣,y),若∥,则y=()A.1 B.﹣1 C.2 D.﹣22.(5分)已知是实数,则“”是“”的()A.充分而不必要条件B.必要而不充分条件C.充要条件D.既不充分又不必要条件3.(5分)函数f(x)=2x+x的零点所在的区间为()A.(﹣2,﹣1)B.(﹣1,0)C.(0,1) D.(1,2)4.(5分)数列{a n}为等差数列,若a2+a8=π,则tan(a3+a7)的值为()A.B.﹣C.D.﹣5.(5分)sin600°的值是()A.B.C.D.6.(5分)已知函数f(x)=,若f(x0)=3,则x0的值为()A.x0=0 B.x0=8 C.x0=8或x0=0 D.x0=6或x0=07.(5分)已知sinα﹣cosα=,α∈(0,π),则tanα=()A.1 B.﹣1 C.D.8.(5分)要得到函数的图象,可由函数y=cos2x的图象()A.向左平移个长度单位B.向右平移个长度单位C.向左平移个长度单位D.向右平移个长度单位9.(5分)在△ABC中,内角A,B,C的对边分别为a,b,c,若sinA,sinB,sinC 依次成等比数列,则()A.a,b,c依次成等差数列B.a,b,c依次成等比数列C.a,c,b依次成等差数列D.a,c,b依次成等比数列10.(5分)若函数f(x)=2sin(ωx+φ),x∈R(其中ω>0,)的最小正周期是π,且,则()A.B.C.D.二、填空题:本大题共7小题,每小题4分,共28分.11.(4分)已知集合A={x∈N|x﹣3≤0},B={x∈Z|x2+x﹣2≤0},则A∪B=.12.(4分)已知实数a,b满足等式log2a=log3b,给出下列五个关系式:①a>b >1;②b>a>1;③a<b<1;④b<a<1;⑤a=b.其中可能成立的关系式是.13.(4分)在△ABC中,角A,B,C所对的边分别是a,b,c,若A=,且=4,则△ABC的面积等于.14.(4分)等比数列{a n}中,S4=5S2,则=.15.(4分)在平面直角坐标系中,分别是与x,y轴正方向同向的单位向量,平面内三点A、B、C满足=+2,=2+m,∠BAC=,则实数m的值为.16.(4分)平面向量,,满足=(1,0),=(1,m),=(2,n),|﹣|=2,则•的最小值为.17.(4分)已知f(x)是以2为周期的偶函数,且当x∈[0,1]时,f(x)=x,若在区间[﹣1,3]内,方程f(x)=kx+k+1(k∈R,且k≠1)有4个零点,则k 取值范围是.三、解答题:本大题共5题,共72分.解答应写出文字说明、证明过程或演算步骤.18.(14分)已知{a n}是递增的等差数列,a1=2,a22=a4+8.(1)求数列{a n}的通项公式;(2)若b n=2an,求数列{b n}的前n项和S n.19.(14分)在△ABC中,a,b,c分别为A,B,C的对边,已知cos2A=﹣.(1)求sinA;(2)当c=2,2sinC=sinA时,求△ABC的面积.20.(14分)已知函数f(x)=,x∈[1,+∞),(1)当a=时,求函数f(x)的最小值;(2)若对任意x∈[1,+∞),f(x)>0恒成立,试求实数a的取值范围.21.(15分)已知,=(sin2x,﹣1),f(x)=•.(1)求函数f(x)的单调增区间;(2)当x∈[,]时,求函数f(x)的值域.22.(15分)已知定义域为R的奇函数f(x)=x|x+m|.(1)解不等式f(x)≥x;(2)对任意x1,x2∈[1,1+a],总有|f(x1)﹣f(x2)|≤2,求实数a的取值范围.2014-2015学年浙江省衢州市五校联考高三(上)期中数学试卷(文科)参考答案与试题解析一、选择题:本大题共10小题,每小题5分,共50分.1.(5分)已知向量=(1,﹣2),=(﹣,y),若∥,则y=()A.1 B.﹣1 C.2 D.﹣2【解答】解:向量=(1,﹣2),=(﹣,y),若∥,所以﹣2×=y,解得y=1.故选:A.2.(5分)已知是实数,则“”是“”的()A.充分而不必要条件B.必要而不充分条件C.充要条件D.既不充分又不必要条件【解答】解:∵是实数,∴“”不一定有“”,∵“”不一定有“”∴根据充分必要条件的定义可判断:“”是“”的既不充分又不必要条件,故选:D.3.(5分)函数f(x)=2x+x的零点所在的区间为()A.(﹣2,﹣1)B.(﹣1,0)C.(0,1) D.(1,2)【解答】解:当x=0时,f(0)=20+0=1>0,当x=﹣1时,f(﹣1)=<0,由于f(0)•f(﹣1)<0,且f(x)的图象在[﹣1,0]上连续,根据零点存在性定理,f(x)在(﹣1,0)上必有零点,故选:B.4.(5分)数列{a n}为等差数列,若a2+a8=π,则tan(a3+a7)的值为()A.B.﹣C.D.﹣【解答】解:由等差数列的性质得,a3+a7=a2+a8=π,所以tan(a3+a7)=tanπ=﹣,故选:D.5.(5分)sin600°的值是()A.B.C.D.【解答】解:sin600°=sin(2×360°﹣120°)=﹣sin120°=﹣sin(180°﹣60°)=﹣sin60°=﹣.故选:D.6.(5分)已知函数f(x)=,若f(x0)=3,则x0的值为()A.x0=0 B.x0=8 C.x0=8或x0=0 D.x0=6或x0=0【解答】解:当x≤0时,3x+1≤31=3,当且仅当x=0取等号,因此x0=0满足f(0)=3.当x>0时,令log2x=3,解得x=8,满足f(x0)=3.综上可得:x0=0或8.故选:C.7.(5分)已知sinα﹣cosα=,α∈(0,π),则tanα=()A.1 B.﹣1 C.D.【解答】解:∵sinα﹣cosα=(sinα﹣cosα)=sin()=,∴sin()=1,∴=2kπ+(k∈Z),∴α=2kπ+(k∈Z),α∈(0,π),∴tanα=tan=﹣1,故选:B.8.(5分)要得到函数的图象,可由函数y=cos2x的图象()A.向左平移个长度单位B.向右平移个长度单位C.向左平移个长度单位D.向右平移个长度单位【解答】解:把函数y=cos2x的图象向右平移个长度单位,可得函数数y=cos2(x﹣)=cos(2x﹣)的图象,故选:D.9.(5分)在△ABC中,内角A,B,C的对边分别为a,b,c,若sinA,sinB,sinC 依次成等比数列,则()A.a,b,c依次成等差数列B.a,b,c依次成等比数列C.a,c,b依次成等差数列D.a,c,b依次成等比数列【解答】解:因为sinA、sinB、sinC依次成等比数列,所以sin2B=sinAsinC,由正弦定理得,b2=ac,所以三边a,b,c依次成等比数列,故选:B.10.(5分)若函数f(x)=2sin(ωx+φ),x∈R(其中ω>0,)的最小正周期是π,且,则()A.B.C.D.【解答】解:由.由.∵.故选:D.二、填空题:本大题共7小题,每小题4分,共28分.11.(4分)已知集合A={x∈N|x﹣3≤0},B={x∈Z|x2+x﹣2≤0},则A∪B={﹣2,﹣1,0,1,2,3} .【解答】解:∵A={x∈N|x﹣3≤0}={0,1,2,3},B={x∈Z|x2+x﹣2≤0}={﹣2,﹣1,0,1},则A∪B={﹣2,﹣1,0,1,2,3}.故答案为:{﹣2,﹣1,0,1,2,3}.12.(4分)已知实数a,b满足等式log2a=log3b,给出下列五个关系式:①a>b >1;②b>a>1;③a<b<1;④b<a<1;⑤a=b.其中可能成立的关系式是②④⑤.【解答】解:实数a,b满足等式log2a=log3b,即y=log2x在x=a处的函数值和y=log3x 在x=b处的函数值相等,当a=b=1时,log2a=log3b=0,此时⑤成立做出直线y=1,由图象知,此时log2a=log3b=1,可得a=2,b=3,由此知②成立,①不成立作出直线y=﹣1,由图象知,此时log2a=log3b=﹣1,可得a=,b=,由此知④成立,③不成立综上知②④⑤故答案为:②④⑤.13.(4分)在△ABC中,角A,B,C所对的边分别是a,b,c,若A=,且=4,则△ABC的面积等于2.【解答】解:∵A=,且=4,∴AB×AC×ccosA=4,得AB×AC=8因此,△ABC的面积S=AB×ACsinA=×8×=2;故答案为:2.14.(4分)等比数列{a n}中,S4=5S2,则=0或.【解答】解:设等比数列{a n}的公比为q,且S4=5S2,当q=1时,4a1=5×2a1,解得a1=0,舍去;当q≠1时,=5×,化简得,q4﹣5q2+4=0,解得q2=4或q2=1,当q2=4时,==;当q2=1时,==0,故答案为:0或.15.(4分)在平面直角坐标系中,分别是与x,y轴正方向同向的单位向量,平面内三点A、B、C满足=+2,=2+m,∠BAC=,则实数m的值为﹣1.【解答】解:∵=(1,2),=(2,m),∠BAC=,∴=2+2m=0,解得m=﹣1.故答案为:﹣1.16.(4分)平面向量,,满足=(1,0),=(1,m),=(2,n),|﹣|=2,则•的最小值为.【解答】解:由=(1,m),=(2,n),|﹣|=2,则=2,即有(m﹣n)2=3,只考虑mn<0.不妨取n>0,m<0.则•=2+mn=2﹣(﹣m)n≥2﹣()2=2﹣=.当且仅当﹣m=n=时,取得最小值.故答案为:.17.(4分)已知f(x)是以2为周期的偶函数,且当x∈[0,1]时,f(x)=x,若在区间[﹣1,3]内,方程f(x)=kx+k+1(k∈R,且k≠1)有4个零点,则k 取值范围是(﹣,0).【解答】解:∵偶函数f(x)当x∈[0,1]时,f(x)=x,∴当x∈[﹣1,0]时图象与x∈[0,1]时关于y轴对称,故x∈[﹣1,0]时f(x)=﹣x,又∵f(x)是以2为周期的函数,∴将函数f(x)在[﹣1,1]上的图象向左和向右平移2的整数倍个单位,可得f (x)在R上的图象.∵直线l:y=kx+k+1经过定点(﹣1,1),斜率为k∴直线l的图象是经过定点(﹣1,1)的动直线.(如右图)在同一坐标系内作出y=f(x)和动直线l:y=kx+k+1,当它们有4个公共点时,方程f(x)=kx+k+1(k∈R,且k≠1)有4个零点,∴直线l的活动范围应该介于两条虚线之间,而两条虚线的斜率k1=0,k2==﹣,故直线l的斜率k∈(﹣,0)故答案为:(﹣,0)三、解答题:本大题共5题,共72分.解答应写出文字说明、证明过程或演算步骤.18.(14分)已知{a n}是递增的等差数列,a1=2,a22=a4+8.(1)求数列{a n}的通项公式;(2)若b n=2an,求数列{b n}的前n项和S n.【解答】解:(1)设等差数列的公差为d,d>0.由题意得(2+d)2=2+3d+8,d2+d﹣6=(d+3)(d﹣2)=0,得d=2.…(4分)故a n=a1+(n﹣1)•d=2+(n﹣1)•2=2n,得a n=2n.…(7分)(2)∵b n=22n=4n∴S n=b1+b2+…+b n==.…(14分)19.(14分)在△ABC中,a,b,c分别为A,B,C的对边,已知cos2A=﹣.(1)求sinA;(2)当c=2,2sinC=sinA时,求△ABC的面积.【解答】解:(1)∵cos2A=﹣,∴,化为sin2A=,∵A∈(0,π),∴sinA>0.∴sinA=.(2)∵c=2,2sinC=sinA,由正弦定理可得a=2c=4.∴sinC=.∵a>c,∴cosC>0.∴=.由余弦定理可得:c2=a2+b2﹣2abcosC,∴,化为,解得b=或2.∴△ABC的面积S==或.20.(14分)已知函数f(x)=,x∈[1,+∞),(1)当a=时,求函数f(x)的最小值;(2)若对任意x∈[1,+∞),f(x)>0恒成立,试求实数a的取值范围.【解答】解:(1)因为,f(x)在[1,+∞)上为增函数,所以f(x)在[1,+∞)上的最小值为f(1)=.…(6分)(2)问题等价于f(x)=x2+2x+a>0,在[1,+∞)上恒成立.即a>﹣(x+1)2+1在[1,+∞)上恒成立.令g(x)=﹣(x+1)2+1,则g(x)在[1,+∞)上递减,当x=1时,g(x)max=﹣3,所以a>﹣3,即实数a的取值范围是(﹣3,+∞).…(6分)21.(15分)已知,=(sin2x,﹣1),f(x)=•.(1)求函数f(x)的单调增区间;(2)当x∈[,]时,求函数f(x)的值域.【解答】解:f(x)=•=sin2x﹣cos2x=2sin(2x﹣)﹣﹣﹣﹣﹣﹣3分(1)令﹣得:﹣+kπ≤x≤+kπ,k∈Z∴函数f(x)的单调增区间为:[﹣+kπ,+kπ],k∈Z﹣﹣﹣﹣﹣﹣﹣7分(2)x∈[,]时,≤2x﹣≤,∴≤2sin(2x﹣)≤2∴当x∈[,]时,函数f(x)的值域为[,2].﹣﹣﹣﹣﹣﹣15分22.(15分)已知定义域为R的奇函数f(x)=x|x+m|.(1)解不等式f(x)≥x;(2)对任意x1,x2∈[1,1+a],总有|f(x1)﹣f(x2)|≤2,求实数a的取值范围.【解答】解:∵f(x)=x|x+m|是定义域为R的奇函数,∴m=0,∴f(x)=x|x|;(1)由x|x|≥x得,或;解得,x≥1或﹣1≤x≤0,故不等式的解集为{x|x≥1或﹣1≤x≤0};(2)f(x)=,则f(x)在R上单调递增,∴f(x)在[1,1+a]上单调递增,∴f(1+a)﹣f(1)≤2,即(1+a)|1+a|﹣1≤2,又∵1+a>1,∴0<a<﹣1.。
浙江省衢州市五校2014-2015学年高一上学期期中联考化学试题 Word版含答案

浙江省衢州市五校2014-2015学年高一上学期期中联考化学试题考生须知:1、本卷分两部分,共31题,满分100分,考试时间90分钟2、可能用到的相对原子质量:H-1 C-12 N-14 O-16 Na-23 S-32 Cu-64 Fe-56一、选择题(每小题只有一个选项符合题意,共28小题,共56分)1、在饮用水中添加含钙、镁、锌、硒等的矿物质,可以改善人体营养,增强体质。
其中的“钙、镁、锌、硒”是指()A.分子 B.原子 C.离子 D.元素2、下列各组物质中,前一种是化合物,后一种是混合物的是()A.氧化钙,洁净的雨水 B.氢氧化钾,含铜80%的氧化铜C.澄清的石灰水,粗盐 D.红磷,空气3、我们生活在千变万化的物质世界里。
下列变化中,没有发生氧化还原反应的是( )A.爆竹爆炸 B.木炭燃烧C.蒸发 D.电解水4、我国科学家在世界上首次合成了三种新核素,其中一种新核素是185Hf(铪)。
关于185Hf的下列说法中,正确的是()A.是一种新元素 B.原子核内有185个质子C.原子核内有185个中子 D.是183Hf的一种新的同位素5、下列叙述中正确的是()A.硝酸的摩尔质量63g B.1mol CO的体积约为22.4LC.2g氢气所含原子数目为1molD.铁的摩尔质量在数值上等于铁原子的相对原子质量6、标准状况下与11.2 L CO2所含原子个数相同的N2的质量是( )A. 14g B. 7g C.21g D.28g7、用N A表示阿伏加德罗常数,下列说法正确的是( )A.1mol钠含有的电子数为23 N AB.标准状况下,22.4L氯气所含的氯原子数为N AC.16g氧气中所含的氧原子数N AD.18g水含有 N A个氢原子8、胶体和其它分散系的本质区别是()A.分散质粒子的大小 B.是不是一种稳定的体系C.会不会产生丁达尔现象D.粒子有没有带电荷9、下列说法正确的是( )A.CO2溶于水得到的溶液能导电,则CO2属于电解质B.电解需要通电才能进行C.氯化氢的水溶液能导电,液态氯化氢不能导电D.NaCl晶体不能导电,所以NaCl是非电解质10、下列电离方程式正确的是 ( )A. CaCl2=Ca2++Cl2-B. Na2SO4=Na+ +SO42-C. HNO3=H++NO3-D. KOH=K++O2-+H+11、以下是对某水溶液进行离子检验的方法和结论,其中正确的是( )A.先加入BaCl2溶液,再加入足量的HNO3溶液,产生了白色沉淀。
2014~2015学年度上学期省五校协作体高一期中考试语文.

2014——2015学年度上学期省五校协作体高一期中考试语文试题命题人:衣姬黛校对人:耿丹考试时间:150分钟考试分值:150分第Ⅰ卷阅读题甲必考题一、现代文阅读(9分,每小题3分)阅读下面的文字,完成1~3题。
中国人的姓与名余昌中国是世界上最早使用姓氏的国家,原始母系氏族社会就产生了姓氏。
在关永礼先生所著的《中国姓氏文化》一书中讲到,许多欧美国家名前姓后的姓氏构成方式,迟至中世纪才产生并传承下来。
亚洲越南、朝鲜等国的姓氏在14世纪左右才普及兴盛,而且多由中国传入。
日本则更晚,1876年才颁布《平民必称姓氏、名字义务令》,普遍推行姓氏制度,改变了此前只有贵族、武士、神职官员才享有姓氏的历史。
而细致考究下来,“姓”的来历要比“氏”更古老。
“姓”字是由“女”字和“生”字组成的,《说文解字》解释:“姓,人所生也。
”远古的人类只知其母不知其父,姓就代表了一个人母系血统,一个始祖母所生的后代即为同姓。
中国的古姓中大多都有“女”字偏旁,如姬、姜、嬴、姒、妫、姚等,也正反映了“姓”和母系血统的密切关系。
远古的人们把氏族繁衍的功劳归于某种神秘的自然力量。
比如在周人的传说中,他们的始祖母姜嫄因踩了熊的脚印而生了后稷,因此周人以熊为图腾,并姓姬,甲骨文“姬”字的右半部,就是熊的脚印的象形。
而在商人的传说中,他们的始祖母简狄因吞食了燕子蛋而生了契,所以商人就以鸟为图腾,并姓子,子就是卵或蛋的意思。
如果说,“姓”是来自母系,那么“氏”就是来自男性。
随着社会的发展,人口的繁衍,男性在生产和战争中的优势不断凸显,氏族群体中出现了强有力的男性首领,他们要对自己率领的群体用某种称号作出区分,这就是“氏”的来历。
最初的氏,是这个氏族男性首领的称呼。
战国以后,随着经济的发展,政局的动荡,许多贵族降为平民。
原本只有卿大夫之家才有资格立氏,随着士和平民地位、权力的上升,他们也开始称氏。
氏已不再是贵族特有的标志,人们在交往中互相称名称氏,成为社会发展的需要。
2014-2015年浙江省衢州市五校联考高一上学期数学期中试卷带答案

2014-2015学年浙江省衢州市五校联考高一(上)期中数学试卷一、选择题:(本大题共10小题,每小题5分,共50分)1.(5分)设集合A={﹣1,0,1},B={1,4},则A∪B=()A.{1}B.{﹣1,0,4}C.{﹣1,0,1,4} D.{0,1,4}2.(5分)下列各式:①1∈{0,1,2};②∅⊆{0,1,2};③{1}∈{0,1,2};④{0,1,2}={2,0,1},其中错误的个数是()A.1个 B.2个 C.3个 D.4个3.(5分)函数f(x)=lg(1﹣x)的定义域为()A.[0,1]B.(﹣1,+∞)C.[﹣1,1]D.(﹣∞,1)4.(5分)下列函数中,与函数y=x相同的函数是()A.y=B.y=C.y=lg10x D.5.(5分)函数y=log a x (0<a<1)的图象大致是()A. B.C. D.6.(5分)若函数f(x)=(2a﹣1)x+1在R上是减函数,则实数a的取值范围是()A.B.C.D.7.(5分)已知a=log 23,,则()A.a<b<c B.a<c<b C.b<c<a D.b<a<c8.(5分)若偶函数f(x)在(﹣∞,﹣1]上是增函数,则()A.f(﹣)<f(﹣1)<f(2)B.f(2)<f(﹣)<f(﹣1)C.f(2)<f(﹣1)<f(﹣3)D.f(﹣1)<f(﹣)<f(2)9.(5分)已知函数f(x)=2x,x∈R,若f(2﹣a2)>f(a),则实数a的取值范围是()A.(﹣∞,﹣1)∪(2,+∞)B.(﹣1,2)C.(﹣2,1)D.(﹣∞,﹣2)∪(1,+∞)10.(5分)阅读下列一段材料,然后解答问题:对于任意实数x,符号[x]表示“不超过x的最大整数”,在数轴上,当x是整数,[x]就是x,当x不是整数时,[x]是点x左侧的第一个整数点,这个函数叫做“取整函数”,也叫高斯(Gauss)函数.如[﹣2]=﹣2,[﹣ 1.5]=﹣2,[2.5]=2.求[log2]+[log2]+[log2]+[log21]+[log22]+[log23]+[log24]的值为()A.﹣1 B.﹣2 C.0 D.1二、填空题:(本大题共7小题,每小题4分,共28分)11.(4分)设P、Q为两个非空实数集合,定义集合P+Q={x|x=a+b,a∈P,b∈Q},若P={0,2},Q={1,2,3},则P+Q=.(用例举法表示)12.(4分)已知函数f(x)=,则f(f())的值是.13.(4分)若幂函数f(x)的图象过点,则f(9)=.14.(4分)函数f(x)=2+log5(x+3)在区间[﹣2,2]上的值域是.15.(4分)奇函数f(x)满足f(x+3)=f(x),且f(1)=2,则f(5)=.16.(4分)数y=a x﹣2+1﹙a>0,且a≠1﹚的图象必经过点.17.(4分)设﹣2≤x≤2,则函数y=4x﹣2×2x+5的最小值是.三、解答题:(本大题共5小题,第18题12分,第19-22题每小题12分,共72分)18.(12分)设全集U=R,集合A={x|﹣1≤x<3},B={x|2x﹣4≥x﹣2}.(1)求B及∁U(A∩B);(2)若集合C={x|2x+a>0},满足B∪C=C,求实数a的取值范围.19.(15分)不用计算器求值:(1)log3;(2).20.(15分)已知函数f(x)=x2+2ax+2,x∈[﹣5,5],(1)当a=﹣1时,求函数的最大值和最小值;(2)求实数a的取值范围,使y=f(x)在区间[﹣5,5]上是单调减函数.21.(15分)设f(x)=,且f(x)的图象过点,(1)求f(x)表达式;(2)计算f(x)+f(﹣x);(3)试求f(﹣2014)+f(﹣2013)+f(﹣2012)+…+f(2013)+f(2014)的值.22.(15分)已知函数f(x)=log 2.(Ⅰ)求函数的定义域;(Ⅱ)判断函数的奇偶性;(Ⅲ)根据函数单调性的定义,证明函数f(x)是增函数.2014-2015学年浙江省衢州市五校联考高一(上)期中数学试卷参考答案与试题解析一、选择题:(本大题共10小题,每小题5分,共50分)1.(5分)设集合A={﹣1,0,1},B={1,4},则A∪B=()A.{1}B.{﹣1,0,4}C.{﹣1,0,1,4} D.{0,1,4}【解答】解:∵A={﹣1,0,1},B={1,4},则A∪B={﹣1,0,1,4}.故选:C.2.(5分)下列各式:①1∈{0,1,2};②∅⊆{0,1,2};③{1}∈{0,1,2};④{0,1,2}={2,0,1},其中错误的个数是()A.1个 B.2个 C.3个 D.4个【解答】解::①1∈{0,1,2},元素与集合之间用属于符号,故正确;②∅⊆{0,1,2};空集是任何集合的子集,正确③{1}∈{0,1,2};集合与集合之间不能用属于符号,故不正确;④{0,1,2}⊆{0,1,2},集合本身是集合的子集,故正确⑤{0,1,2}={2,0,1},根据集合的无序性可知正确;故选:A.3.(5分)函数f(x)=lg(1﹣x)的定义域为()A.[0,1]B.(﹣1,+∞)C.[﹣1,1]D.(﹣∞,1)【解答】解:∵函数f(x)=lg(1﹣x),∴1﹣x>0,解得x<1;∴f(x)的定义域为(﹣∞,1).故选:D.4.(5分)下列函数中,与函数y=x相同的函数是()A.y=B.y=C.y=lg10x D.【解答】解:对于A,y==x(x≠0),与函数y=x(x∈R)的定义域不同,不是相同函数;对于B,y==x(x≥0),与函数y=x(x∈R)的定义域不同,不是相同函数;对于C,y=lg10x=x(x∈R),与函数y=x(x∈R)的定义域相同,对应关系也相同,是相同函数;对于D,y==x(x>0),与函数y=x(x∈R)的定义域不同,不是相同函数.故选:C.5.(5分)函数y=log a x (0<a<1)的图象大致是()A. B.C. D.【解答】解:∵函数y=log a x (0<a<1),∴定义域为(0,+∞),单调递减,f(1)=log a1=0函数y=log a x (0<a<1),∴定义域为(0,+∞),单调递减,∴判断A正确,故选:B.6.(5分)若函数f(x)=(2a﹣1)x+1在R上是减函数,则实数a的取值范围是()A.B.C.D.【解答】解:∵函数f(x)=(2a﹣1)x+1在R上是减函数,∴2a﹣1<0,∴a,故选:D.7.(5分)已知a=log 23,,则()A.a<b<c B.a<c<b C.b<c<a D.b<a<c【解答】解:∵a=log 23>1,<0,0<<1,∴b<c<a.故选:C.8.(5分)若偶函数f(x)在(﹣∞,﹣1]上是增函数,则()A.f(﹣)<f(﹣1)<f(2)B.f(2)<f(﹣)<f(﹣1)C.f(2)<f(﹣1)<f(﹣3)D.f(﹣1)<f(﹣)<f(2)【解答】解:因为f(x)在(﹣∞,﹣1]上是增函数,且﹣2<﹣<﹣1,所以f(﹣2)<f(﹣)<f(﹣1),又f(x)为偶函数,所以f(﹣2)=f(2),则f(2)<f(﹣)<f(﹣1),故选:B.9.(5分)已知函数f(x)=2x,x∈R,若f(2﹣a2)>f(a),则实数a的取值范围是()A.(﹣∞,﹣1)∪(2,+∞)B.(﹣1,2)C.(﹣2,1)D.(﹣∞,﹣2)∪(1,+∞)【解答】解:由于函数f(x)=2x在R上是增函数,故由f(2﹣a2)>f(a),可得2﹣a2>a,求得﹣2<a<1,故选:C.10.(5分)阅读下列一段材料,然后解答问题:对于任意实数x,符号[x]表示“不超过x的最大整数”,在数轴上,当x是整数,[x]就是x,当x不是整数时,[x]是点x左侧的第一个整数点,这个函数叫做“取整函数”,也叫高斯(Gauss)函数.如[﹣2]=﹣2,[﹣ 1.5]=﹣2,[2.5]=2.求[log2]+[log2]+[log2]+[log21]+[log22]+[log23]+[log24]的值为()A.﹣1 B.﹣2 C.0 D.1【解答】解:=﹣2,﹣2<<﹣1,=﹣1,log21=0,log22=1,1<log23<2,log24=2,由“取整函数”的定义可得,[log2]+[log2]+[log2]+[log21]+[log22]+[log23]+[log24]=﹣2﹣2﹣1+0+1+1+2=﹣1.故选:A.二、填空题:(本大题共7小题,每小题4分,共28分)11.(4分)设P、Q为两个非空实数集合,定义集合P+Q={x|x=a+b,a∈P,b∈Q},若P={0,2},Q={1,2,3},则P+Q={1,2,3,4,5} .(用例举法表示)【解答】解:∵P+Q={x|x=a+b,a∈P,b∈Q},且P={0,2},Q={1,2,3},∴x=0+1=1,x=0+2=2,x=0+3=3,x=2+1=3,x=2+2=4,x=2+3=5;故P+Q={1,2,3,4,5},故答案为:{1,2,3,4,5}.12.(4分)已知函数f(x)=,则f(f())的值是.【解答】解:由分段函数可得f()=,∴f(f())=,故答案为:13.(4分)若幂函数f(x)的图象过点,则f(9)=.【解答】解:设幂函数f(x)=xα,∵幂函数y=f(x)的图象过点(),∴,解得.∴f(x)=,∴f(9)==,故答案为:.14.(4分)函数f(x)=2+log5(x+3)在区间[﹣2,2]上的值域是[2,3] .【解答】解:∵5>1,可得y=log5x是定义在(0,+∞)上的增函数而f(x)=2+log5(x+3)的图象是由y=log5x的图象先向左平移3个单位,再向上平移2个单位而得∴函数f(x)=2+log5(x+3)在区间(﹣3,+∞)上是增函数因此,数f(x)=2+log5(x+3)在区间[﹣2,2]上的最小值为f(﹣2)=2+log51=2最大值为f(3)=)=2+log55=3,可得函数f(x)在区间[﹣2,2]上的值域为[2,3]故答案为:[2,3]15.(4分)奇函数f(x)满足f(x+3)=f(x),且f(1)=2,则f(5)=﹣2.【解答】解:∵函数f(x)是奇函数,∴f(﹣x)=﹣f(x).∵f(x+3)=f(x),∴f(x﹣3)=f(x),∵f(1)=2,∴f(5)=f(5﹣3)=f(2)=f(2﹣3)=f(﹣1)=﹣f(1)=﹣2.故答案为:﹣2.16.(4分)数y=a x﹣2+1﹙a>0,且a≠1﹚的图象必经过点(2,2).【解答】解:由x﹣2=0得x=2,此时y=a x﹣2+1=a0+1=1+1=2,即函数过定点(2,2),故答案为:(2,2).17.(4分)设﹣2≤x≤2,则函数y=4x﹣2×2x+5的最小值是4.【解答】解:令t=2x,∵﹣2≤x≤2,∴≤t≤4,函数y=4x﹣2×2x+5=t2﹣2t+5=(t﹣1)2+4,故当t=1时,函数y取得最小值为4,故答案为:4.三、解答题:(本大题共5小题,第18题12分,第19-22题每小题12分,共72分)18.(12分)设全集U=R,集合A={x|﹣1≤x<3},B={x|2x﹣4≥x﹣2}.(1)求B及∁U(A∩B);(2)若集合C={x|2x+a>0},满足B∪C=C,求实数a的取值范围.【解答】(改编自课本19页本章测试13、14两题)解:(1)∵A={x|﹣1≤x<3},B={x|2x﹣4≥x﹣2}={x|x≥2}…2分∴A∩B={x|2≤x<3}…4分∴C U(A∩B)={x|x<2或x≥3}…7分(2)由B∪C=C得B⊆C…9分C={x|2x+a>0}=根据数轴可得,…12分从而a>﹣4,故实数a的取值范围是(﹣4,+∞).…14分.19.(15分)不用计算器求值:(1)log3;(2).【解答】解:(1)原式=﹣1+lg100+2=﹣1+2+2=3.(2)原式=22×33+﹣+1=108+2﹣7+1=104.20.(15分)已知函数f(x)=x2+2ax+2,x∈[﹣5,5],(1)当a=﹣1时,求函数的最大值和最小值;(2)求实数a的取值范围,使y=f(x)在区间[﹣5,5]上是单调减函数.【解答】解:(1)当a=﹣1时,函数表达式是f(x)=x2﹣2x+2,∴函数图象的对称轴为x=1,在区间(﹣5,1)上函数为减函数,在区间(1,5)上函数为增函数.∴函数的最小值为[f(x)]min=f(1)=1,函数的最大值为f(5)和f(﹣5)中较大的值,比较得[f(x)]max=f(﹣5)=37综上所述,得[f(x)]max=37,[f(x)] min=1(6分)(2)∵二次函数f(x)图象关于直线x=﹣a对称,开口向上∴函数y=f(x)的单调减区间是(﹣∞,﹣a],单调增区间是[﹣a,+∞),由此可得当[﹣5,5]⊆(﹣∞,﹣a]时,即﹣a≥5时,f(x)在[﹣5,5]上单调减,解之得a≤﹣5.即当a≤﹣5时y=f(x)在区间[﹣5,5]上是单调减函数.(6分)21.(15分)设f(x)=,且f(x)的图象过点,(1)求f(x)表达式;(2)计算f(x)+f(﹣x);(3)试求f(﹣2014)+f(﹣2013)+f(﹣2012)+…+f(2013)+f(2014)的值.【解答】解:(1)由题意,f(0)==,解得,a=1,故;(2)f(﹣x)++=+=1;(3)f(﹣2014)+f(﹣2013)+f(﹣2012)+…+f(2013)+f(2014)=(f(﹣2014)+f(2014))+(f(﹣2013)+f(2013))+…+f(0)=1+1+1+ (1)=2014+=2014.5.22.(15分)已知函数f(x)=log2.(Ⅰ)求函数的定义域;(Ⅱ)判断函数的奇偶性;(Ⅲ)根据函数单调性的定义,证明函数f(x)是增函数.【解答】解:(I)∵解得﹣1<x<1∴定义域是{x|﹣1<x<1}(II)∵∴∴函数是奇函数.赠送初中数学几何模型【模型一】“一线三等角”模型: 图形特征:运用举例:1.如图,若点B在x轴正半轴上,点A(4,4)、C(1,-1),且AB=BC,AB⊥BC,求点B的坐标;xyBCAO2.如图,在直线l上依次摆放着七个正方形(如图所示),已知斜放置的三个正方形的面积分别是1、2、3,正放置的四个正方形的面积依次是1S、2S、3S、4S,则14S S+=.ls4s3s2s13213. 如图,Rt△ABC中,∠BAC=90°,AB=AC=2,点D在BC上运动(不与点B,C重合),过D作∠ADE=45°,DE交AC于E.(1)求证:△ABD∽△DCE;(2)设BD=x,AE=y,求y关于x的函数关系式,并写出自变量x的取值范围;(3)当△ADE 是等腰三角形时,求AE 的长.B4.如图,已知直线112y x =+与y 轴交于点A ,与x 轴交于点D ,抛物线212y x bx c =++与直线交于A 、E 两点,与x 轴交于B 、C 两点,且B 点坐标为 (1,0)。
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2014/2015学年浙江省五校第一学期联盟学校高一期中联考
物理试卷
命题、审题人:杭州市长河高级中学 过小英、朱祥勇
一、单项选择题(本题包括8小题,每小题3分,共24分。
在每小题给出的四个选项中, 只有一个选项符合题目的要求。
)
1、下面是关于质点的一些说明,其中正确的有( )
A .体操运动员在做单臂大回环,可以视为质点
B .研究地球的公转时,可以把地球看成质点
C .研究地球自转时,可以把地球看成质点
D .原子很小,可把它看成质点
2、仅仅16岁零9个月15天,杭州女孩叶诗文的成就已“前无古人”.2012年12月16日凌晨,她以破赛会纪录的成绩勇夺短池世锦赛女子200米混合泳冠军,仅仅两年时间,她便成为中国游泳史上第一位集奥运会、世锦赛、短池世锦赛和亚运会冠军于一身的全满贯。
叶诗文夺得冠军说明她在这次比赛中下列的哪一个物理量一定比其他运动员的大( )
A .跳入泳池的速度
B .终点撞线时的速度
C .全程的平均速率
D .掉头的速度
3、如图所示,直线a 和曲线b 分别是在平直公路上行驶的汽车a
和b 的位置---时间(x -t )图线。
由图可知( )
A .在时刻t 1 ,a 、b 两车运动方向相同
B .在时刻t 2 ,a 、b 两车运动方向相反
C .在t 1到t 2这段时间内,b 车的速率先减小后增大
D .在t 1到t 2这段时间内,b 车的速率一直比a 车的大
4、一名宇航员在某星球上完成自由落体运动实验,让一个质量为
2 kg 的小球从一定的高度自由下落,测得在第5 s 内的位移是18 m ,则
A .物体在2 s 末的速度是20 m/s
B .物体在第5 s 内的平均速度是3.6 m/s
C .物体在第2 s 内的位移是20 m
D .物体在5 s 内的位移是50 m
5、一个物体由静止开始沿一条直线运动,其加速度随时间的倒数的变化规律图线如图所示,a 0和t 0已知,则下列判断正确的是( )
A .物体在t 0前做加速度增大的加速运动
B .物体在t 0时刻的速度为a 0t 0
C .物体在t 0时间内速度增加量为12
a 0t 0 D .以上判断均错
6、下列说法正确的是
A .重力的方向总是垂直地面向下
B .摩擦力的大小总是与物体间的弹力成正比
C .物体受滑动摩擦力的方向总是与运动方向相反
D .弹力的方向一定与接触面垂直
7、如图所示,一平板小车在外力作用下由静止向右滑行了一段距离x ,同时车上的物体A 相对车向左滑行L ,此过程中物体A 受到的摩擦力方向如何?该摩擦力是动力还是阻力?
A .水平向左,阻力
B .水平向左,动力
C .水平向右,阻力
D .水平向右,动力
8、四个小球在离地面不同高度同时从静止释放,不计空气阻力,从开始运动时刻起每隔相等的时间间隔,小球依次碰到地面.下列各图中,能反映出刚开始运动时各小球相对地面的位置的是()
二、不定项选择题(本题包括4小题,每小题4分,共16分,在每小题给出的四个选项中,有一个或多个选项符合题目的要求,选对没选全的得2分,有选错的不得分。
)
9、匀变速直线运动是()。
①位移随时间均匀变化的直线运动②速度随时间均匀变化的直线运动③加速度随时间均匀变化的直线运动④加速度的大小和方向恒定不变的直线运动
A.①② B.②③ C.②④ D.③④
10、做匀加速直线运动的物体,先后经过A、B两点时,其速度分别为v和7v,经历时间为t,则下列判断中正确的是()
A.经过A、B中点时速度为5v
B.经过A、B中点时速度为4v
C.从A到B所需时间的中间时刻(即t/2)的速度为4v
D.在后一半时间(即后t/2)所通过的距离比前一半时间通过的距离多vt
11、有一木块静止在水平桌面上,关于它的受力下面说法中正确的是()
A.木块对桌面的压力就是木块所受的重力,施力物体是地球
B.木块对桌面的压力是弹力,是由于木块发生弹性形变而产生的
C.木块对桌面的压力在数值上等于木块受的重力的大小
D.木块保持静止是由于木块对桌面的压力与桌面对木块的支持力保持平衡
12、如图所示,质量为m的木块在质量为M的长木板上向右滑行,木块同时受到向右的拉力F的作用,长木板处于静止状态。
已知木块与木板间的动摩擦因数为μ1,木板与地面间的动摩擦因数为μ2,以下几种说法正确的是
A.木板受到地面的摩擦力的大小一定是μ1mg
B.木板受到地面的摩擦力的大小一定是μ2(m+M)g C.当F>μ2(m+M)g时,木板便会开始运动
D.无论怎样改变F的大小,木板都不可能运动
三、填空题(每空2分,共22分)
13、伽利略的自由落体实验和加速度实验均被选为最美的实验。
在加速度实验中,伽利略将光滑直木板槽倾斜固定,让铜球从木槽顶端沿斜面由静止滑下,并用水钟测量铜球每次下滑的时间,研究铜球的运动路程和时间的关系。
亚里士多德曾预言铜球的运动速度是不变的,伽利略却证明铜球运动的路程与时间的平方成正比。
请将亚里士多德的预言和伽利略的结论
分别用公式表示(其中路程用s,速度用v,加速度用a,时间用t表示)。
①亚里士多德的预言:;②伽利略的结论:;伽利略的实验之所以成功,主要原因是抓住了主要因素,而忽略了次要因素。
你认为他在加速度实验中,伽利略选用光滑直木槽和铜球进行实验来研究铜球的运动,是为了减小铜球运动过程中的摩擦阻力这一次要因素,同时抓住了这一主要因素。
若将此实验结
论做合理外推,即可适用于自由落体运动,其原因是在实验误差范
围内,铜球运动的加速度(填序号即可)。
A.与铜球质量成正比B.只与斜面倾角有关
C.与斜面倾角无关D.与铜球质量和斜面倾角都有关
14、在“探究弹力与弹簧伸长的关系”的实验中,为了探求弹簧弹力
F和弹簧伸长量x的关系,李强同学选了甲、乙两根规格不同的弹
簧进行测试,根据测得的数据绘出如图所示的图象,从图象上看,该同学没能完全按实验要求做,使图象上端成为曲线,图象上端成为曲线是因为.其中乙弹簧的劲度系数为N/m。
若要制作一个精确度较高的弹簧秤,应选弹簧(填“甲”或“乙”)。
15、研究小车匀变速直线运动的实验装置如图所示其中斜面倾角θ可调,打点计时器的工作频率为50 Hz,纸带上计数点的间距如图所示,其中每相邻两点之间还有4个记录点未画出。
(1)部分实验步骤如下:
A.测量完毕,关闭电源,取出纸带
B.接通电源,待打点计时器工作稳定后放开小车
C.将小车停靠在打点计时器附近,小车尾部与纸带相连
D.把打点计时器固定在平板上,让纸穿过限位孔,上述实验步骤的正确顺序是:
(用字母填写)
(2)图中标出的相邻两计数点的时间间隔T=s;
(3)计数点5对应的瞬时速度大小计算式为v5= 。
(用字母表示);(4)为了充分利用记录数据,减小误差,小车加速度大小的计算式应为a= (用字母表示)
四、计算题(16题8分,17题8分,18题11分,19题11分,共38分。
要有必要的解题步骤,没有步骤只有结果不给分。
)
16、如图所示,轻质弹簧的劲度系数k =20 N/cm ,用其拉着一个重为200 N 的物体在水平面上运动,当弹簧的伸长量为4 cm 时,物体恰在水平面上做匀速直线运动,求:
(1)物体与水平面间的动摩擦因数;
(2)当弹簧的伸长量为6 cm 时,物体受到的水平拉力及这时物体受到的摩擦力的大小;
(3)如果在物体运动的过程中突然撤去弹簧,而物体在水平面上能继续滑行,这时物体受到的摩擦力的大小.
17、如图所示为某高楼电梯上升的前8秒的速度图象,试求:
(1)在t 1=5 s 、t 2=8 s 时刻的速度大小;
(2)各段的加速度.
18、摩托车先由静止开始以1625
m/s 2
的加速度做匀加速直线运动,后以最大行驶速度25m/s 匀速直线运动,追赶前方以15m/s 的速度同向匀速行驶的卡车.已知摩托车开始运动时与卡车的距离为1000m ,则:
(1)追上卡车前二者相隔的最大距离是多少?
(2)摩托车经过多少时间才能追上卡车?
19、小轿车以20m/s 的速度在平直公路上匀速行驶,司机突然发现正前方有个收费站,经20s 后司机才刹车使车匀减速恰停在缴费窗口,缴费后匀加速到20m/s 后继续匀速前行。
已知小轿车刹车时的加速度为2m/s 2,停车缴费所用时间为30s ,启动时加速度为1m/s 2。
(1)司机是在离收费窗口多远处发现收费站的。
(2)因国庆放假期间,全国高速路免费通行,小轿车可以不停车通过收费站,但要求轿车通过收费窗口前9m 区间速度不超过6m/s ,则国庆期间该小轿车应离收费窗口至少多远处开始刹车?因不停车通过可以节约多少时间?。