13-14高一上学期期末考试
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2022级第三学期教学质量监测考试化学试卷说明:1本试卷分第1卷和第1卷,共6页。
考生作答时,须将答案答在答题卡上,在本试卷、草稿纸上答题无效。
考试结束后,将答题卡交回。
2.本试卷满分100分,75分钟完卷。
可能用到的相对原子质量:H-1O-16Na-23S-32Cl-35.5Fe-56Ba-137第Ⅰ卷(选择题共42分)一、选择题(本题包括14小题,每小题3分,共42分。
每小题只有一个选项最符合题意)1.研究物质结构的现代仪器和方法中,有关描述错误的是()A .通过原子光谱上的特征谱线来鉴定元素B .通过X 射线衍射实验区分晶体和非晶体C .通过质谱法测定相对原子质量和推测官能团D .通过红外光谱仪分析分子中所含化学键的信息2.下列各组分子中,都属于含极性键的非极性分子的是()A .3O 、3SO B .HCl 、2H SC .2CO 、4CH D .4P 、24C H 3.下列分子或离子的空间结构模型正确的是()A .2CH O :B .2SO :C .3NF :D .24SO -:4.恒容密闭容器中发生反应222NO 2CO N 2CO ++ ΔH 。
下列说法正确的是()A .室温下能自发进行,表明该反应的0H ∆>B .保持温度一定,充入氩气使反应速率加快C .加入合适的催化剂,既能改变反应历程又能降低活化能D .其他条件一定,再通入适量NO ,NO 和CO 的转化率都将增大5.锗(32Ge )是优良的半导体材料,下列有关叙述正确的是()A .Ge 元素位于元素周期表的p 区B .Ge 原子核外有4种不同能量的电子C .Ge 原子核外有8种空间运动状态的电子D .Ge 原子的2p 和3p 轨道形状为大小相同的哑铃形6.下列有关物质结构与性质的说法中,错误的是()A .在2CS 中的溶解性:42CCl H O>B .沸点:C .酸性:223FCH COOH ClCH COOH CH COOH >>D .利用超分子特征,“杯酚”可将60C 和70C 分离7.碳化硅俗称金刚砂,与金刚石结构相似,其晶胞如图所示。
浙江省杭州2023-2024学年高一上学期期末考试物理试题一、单项选择题(本大题共14小题,每小题3分,共42分。
每个小题列出的四个备选项中只有一个是符合题目要求的,不选、多选、错选均不得分)1.下列四组物理量中均为矢量的是()A.位移路程B.速度加速度C.瞬时速度平均速率D.平均速度速率2.关于质点,下列说法正确的是()A.甲图中研究如何才能踢出香蕉球时,不可以把足球看作质点B.乙图中研究列车从杭州到北京路程时,不可以把列车看作质点C.丙图中研究雄鹰为什么能在空中翱翔时,可以把雄鹰看作质点D.丁图中研究运动员起跑动作时,可以把运动员看作质点3.关于参考系,下列说法正确的是()A.太阳从东边升起,从西边落下,选取的参考系是地球B.由于运动是绝对的,描述运动时,无需选定参考系C.乘客看到车窗外的景物飞速后退,选取的参考系是地面D.同一物体的运动,选不同的参考系观察结果肯定是相同的4.我国的某新型潜航器在某次试航中,测试垂直急速下潜、上浮性能,水面舰艇上的测试员发现仪表上显示潜航器在某时刻的速度为正值,加速度也是正值且大小不断减小直到为零,则该潜航器的运动情况为()A.位移先增大后减小,直到加速度等于零为止B.位移一直在增大,直到加速度为零为止C.速度一直在增大,直到加速度等于零为止D.速度先增大后减小,直到加速度等于零为止5.关于加速度表达式a= △v△t的下列说法,正确的是()A.利用a= △v△t求得的加速度是△t时间内的平均加速度B.△v表示在△t时间内物体速度的变化量,它的方向不一定与加速度a的方向相同C.△v△t表示速度的变化率,是标量D.加速度a与△v成正比,与△t成反比6.列车关闭发动机进站,做匀减速直线运动,当滑行300m时,速度减为一半,求列车进站滑行的总路程是()A.400m B.600m C.900m D.1200m7.甲同学用两个手指捏住直尺的顶端,乙同学用一只手在直尺0刻度位置做捏住直尺的准备,但手不碰到直尺,在甲同学放开手指让直尺下落时,乙同学立刻去捏直尺,在刻度尺上合理标注时间刻度,就能制作一把“人的反应时间测量尺”,以下标注正确的是()A.10cm标注0.1s B.20cm标注0.2s C.30cm标注0.3s D.40cm标注0.4s8.如图所示,为了测定气垫导轨上滑块的加速度,滑块上安装了宽度为3.0cm的遮光板。
2013-2014学年上学期期末考试高一英语试卷第Ⅰ卷(选择题共115分)第一部分听力(共两节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)1.When does the conversation probably take place?A.In a library.B. In the classroom.C. In a bookstore.2.How much is one pair of running shoes?A. ﹩17.50B.﹩19.95C.﹩35.003.What are the two speakers doing?A.Walking down a hill.B.Doing shopping.C.Climbing stairs.4.Whom did George have to take to hospital?A. His daughter.B. His father.C. His wife.5.What’s the probable relationship between the two speakers?A. Neighbors.B. Friends.C. Strangers.第二节(共15小题;每小题1.5分,满分22.5分)听第6段材料,回答第6、7题。
6. What does David usually do after school before going home?A. Do his homework.B. Do some sports.C. Clean the classroom.7. What can we learn about David’s father?A. He is on business.B. He is in hospital.C. He likes playing football.听第7段材料,回答第8、9题。
8. What day is it today?A. FridayB. SaturdayC. Sunday9. What will the man try to do?A. Attend the party for John.B. Go to London with John.C. Get a similar job in London.听第8段材料,回答第10至12题。
20232024学年北京市海淀区高一上学期期末考试语文2024.01学校_______班级___________姓名__________阅读下面的材料,完成13题。
在中国,春节是影响力最大的一个节日。
它展现出来的巨大黏性让合家团圆有了一个契机,让在外打工挣钱的务工者和求学的学生有了回家的动力。
春运,即春节运输,一般指的是在春节前后发生的一种大规模的交通运输高压力现象。
春运不仅仅是中国改革开放以来特有的人口迁移活动,也是世界上少有的大规模人口流动现象。
《2018年春运大数据报告》显示,全国旅客发送量为29.7亿人次,这一庞大的数字刷新了春节运输的记录,此消息也被大众迅速刷屏..。
春运现象的出现,与中国社会的“乡土性”之间存在着较大的关联。
费孝通认为,“乡土中国”是“包含在具体的中国基层传统社会里的一种特具的体系,支配着社会生活的各个方面”。
改革开放以前,居民在人与空间的关系上基本是不流动的,人们安土重迁,以村为单位保持着孤立与隔膜,同时,乡村具有“熟人社会”的特点。
这些使得乡村生活富于“地方性”。
人们“生于斯,死于斯”,常态的生活是终老是乡。
改革开放后,传统乡村体系虽被人口流动打破,却也总有一种力量牵引着外出的人们毫不犹豫地在春节返乡,形成中国特有的“春运”现象。
《论语・里仁》写道:“父母在,不远游,游必有方。
”传统观念里,如果父母健在,子女就需要陪伴在侧,履行赡养义务。
现代社会中,子女往往需要外出挣钱来维持家庭稳定。
一般来说,现在的外出打工模式已经不是以前的青壮年男性健康劳动力出走,而是夫妻二人一同外出打工,养家糊口。
打工者作为家庭的经济核心,需要用在外挣到的钱赡养老人,抚养孩子,他们的外出是出于对家庭责任的担当。
但在现实面前,担当也意味着先得离别,离别了就更加渴求团圆。
于是,临近春节,返乡陪伴父母子女便成为了外出打工者心头的企盼。
春运是“流动的中国”,这里不仅蕴藏着中国经济发展的巨大潜力,也承载着亿万人深重的乡土观念和浓厚的文化情怀。
上海市理工大学附属中学2013-2014学年高一英语上学期期末考试试题牛津上海版I. Listening Comprehension (20%)Section ADirections: In Section A. you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to (he question you have heard.1.A.A shop assistant. B.A dentist C.A teacher. D.A bank clerk. 2.A.The exam score. B.The world news. C.A soccer match.. D.A basketball team. 3.A.At a post office. B.At a flower shop.C.At a department store. D.At a bus station.4.A.5 hours. B.7 hours. C.9 hours. D.10 hours. 5.A.Tim’s not seriously injured.B.Tim will get to the hospital quickly.C.The woman’s heard all about Tim’s illness.D.The woman doesn’t know how Tim is now.6.A.She isn’t in the mood to travel. B.France is too far for family holiday.C.Family holiday no longer interests her. D.She has had too many holidays this year. 7.A.The cost was reasonable. B.The cost was unbelievably high.C.She likes the hotel. D.She will stay overnight. 8.A.Disappointment B.Disapproval. C.Sympathy. D. Passion.9.A.The man is too forgetful. B.The man shouldn’t get annoyed.C.The man has too many keys. D.The man should attend more lessons. 10.A.He wants to live in apartments. B.He thinks his signature is unnecessary.C.He has already signed a contract. D.He doesn’t always say what he means. Section BDirections: In Section B. you will hear two short passages, and you will be asked three questions on each of the passages. The passages will be read twice, but the questions will be spoken only once. When you hear a question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Questions II through 13 are based on the following passage11.A.White masters. B.African slaves. C.Native dancers. D.Sport trainers. 12.A.Having kung fu experience. B.Being able to sing and play music.C.Wearing a green belt. D.Being strong and able to balance well. 13.A.He uses his hands to keep the balance. B.He doses contact with his opponent.C.He is kicked by his opponent. D.He is pushed out of the circle.Questions 14 through 16 are based on the following passage14.A.Great guests and talk to hotel staff.B.Have breakfast and examine room service.C.Prepare for the meeting and write new reports.D.Review the previous night’s reports and check emails.15.A.Saying hello to every guest. B.Considering different bath requirements.C.Dining with a different staff member. D.Holding various operational meetings. 16.A.A da y’s life of a hotel manager. B.The daily routine at a hotel.C.Hotel service and improvement. D.Meetings attended by a hotel massager. Section CDirections: In Section C, you will hear two longer conversations. The conversations will be read twice. After you hear each conversation, you are required to fill in the numbered blanks with the information you have heard. Write your answers on your answer sheet.II. Grammar and Vocabulary (25 %)Section A (16%)21. The reason ________ I’m phoning to you is to tell you about a farewell party on Saturday.A. becauseB. whyC. forD. which22. Do you remember the day ________ I came to you to borrow a history book?A. thatB. in whichC. whenD. where23. ______ the morning of Christmas Day, many people go to church to celebrate the birth of Christ.A. InB. ToC. ForD. On24. The weather was bad; ______ we postponed our camping in the outskirts.A. howeverB. thereforeC. and thereforeD. but25. _________ I know the money is safe, I shall not worry about it.A. Even thoughB. UnlessC. As long asD. While26. He will have learned Japanese for six years by the time he ______ from the university next year.A. will graduateB. will have graduatedC. graduatesD. is to graduate27. I will go on with the research ______ I may meet with many difficulties.A. as ifB. thereforeC. despiteD. even though28. Having a trip abroad is certainly good for the old couple, but it remains ______ whether they will enjoy it.A. to seeB. to be seenC. seeingD. seen29. These books are very useful to those _________ first foreign language is Japanese.A. whoB. whoseC. whomD. of whom30. He studied very hard when he was young, _________ contributes to his success in later life.A. thatB. so thatC. whatD. which31. Is this museum ___________ the students visited the day before yesterday?A. whereB. in thatC. the oneD. at which32. In many western countries much has been done to prevent environment from __________.A. pollutedB. to be pollutedC. be pollutingD. being polluted33. We might as well make use _______ the hotel’s facilities.A. ofB. withC. toD. about34. Last Monday, our physics teacher set such a hard test problem ______ none of us managed to work out.A. asB. thatC. andD. what35. Most artists take their shapes and colours from the world of nature, and their choices indicate that these aspects of the world are worth _______.A. looked atB. looking atC. being looked atD. to be looked at36. Jane has two brothers, ___________ we sent abroad to study medicine in the 1980s.A. bothB. both of themC. both of whomD. of whomSection B (9%)Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.popular "design museums" that are opening today, however, perform quite a different 37 . Unlike most art museums, the design museum shows objects that are easily found by the general public.These museums sometimes even place things like fridges and washing machines in the 38 of the hall.People have argued that design museums are often made use of as advertisements for new industrial technology.But their role is not simply a matter of sales—It is the 39 of excellently invented products.The difference between the window of a department store and the showcase in a design museum is that the first tries to sell you something, while the second tells you the success of a sale.In recent years, several new design museums have opened their doors.Each of these museums has tried to 44 the public's growing interest in the field with new ideas.London's Design Museum, for example, shows a collection of mass-produced objects from Zippo lighters to electric typewriters to a group of Italian fish-tins.The choices open to design museums seem far less 45 than those to art museums.III. Reading Comprehension (35 %)Section A (1% *15= 15%)There was a __48__ on the door one evening. It was Jeff’s new colleague, John Smith, and his wife, Phyllis. The Smiths had stopped by to welcome us to town with a loaf of homemade bread. They pointed out a __49__ on the porch (门廊). Apparently the doorbell wasn’t working in the cold snowy weather and we had __50__ a visit from the Browns, our across-the-street neighbors, who brought us a Christmas card and more Christmas cookies.The __51__ feelings brought by these thoughtful gestures lasted longer than the food.As Jeff and I were clearing pre-Christmas __52__ from our driveway, Ernie Guzman came over from next door to help us to dig out.Our Christmas Eve was quite merry, thanks to our neighbors. Our Christmas morning __55__ was special, thanks to the Smiths’ gift of bread. I was so __56__ for these gestures of welcome, especially during the holidays.This year, we were again unable to be with our families for Christmas. The __57__ and work schedules just made things too difficult. Knowing that sense of Christmas isolation (孤立) all too well, we decided to try to round up some other folks who were __58__ in the holidays.Lonely people are all around us, but most of us __59__ notice them. Just take a look around you. Sometimes, the smallest __60__ gesture can make a world of difference.46 A. chance B. time C. anxiety D. ability47 A. merry B. free C. lonely D. usual48 A. card B. sign C. knock D. note49 A. tree B. package C. mail D. flower50 A. forgot B. arranged C. received D. missed51 A. deep B. true C. warm D. mixed52 A. snow B. rubbish C. dust D. leaves53.A. share B. prepare C. taste D. exchange54.A. aunt B. guest C. maid D. partner55.A. call B. greeting C. breakfast D. meeting56.A. sorry B. eager C. ready D. grateful57.A. distance B. expense C. season D. situation58.A. alone B. busy C. happy D. active59.A. always B. seldom C. finally D. usually60.A. careful B. patient C. vague D. kindSection B (1% *12= 12 %)Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.(A)He listened to me quietly, then he asked. ―Are the things she says true or not? Janet, didn’t you ever wonder what you’re really like ? Well, you now have that girl’s opinion. Go and make a list of everything she said and mark the points that are true. Pay no attention to the other things she said.‖I did as he told me. To my great surprise, I discovered that about half the things were true. Some of them I couldn’t change (like being very thin), but a good number I could—and suddenly I wanted to change. For the first time I got a fairly clear picture of myself.Daddy’s advice has returned to me at many important moments. In my life, I’ve never had a better piece of advice.61. What did the father do after he had heard his daughter’s complaint?A. He told her not to pay any attention to what her ―enemy‖ had said.B. He criticized her and told her to overcome her shortcomings.C. He told her to write down all that her ―enemy‖ had said abo ut her and pay attention onlyto the things that were true.D. He refused to take the list and have a look at it.62. What does ―Week by week her list grew‖ mean?A. Week by week she discovered more shortcomings of mine and pointed them out to me.B. She had made a list of my shortcomings and she kept on adding new ones to it so that itwas growing longer and longer.C. I was having more and more shortcomings as time went on.D. Week by week, my shortcomings grew more serious.63. Why did her father listen to her quietly?A. Because he believed that what her daughter’s ―enemy‖ said was mostly true.B. Because he had been so angry with his daughter’s shortcomings that he wanted to showthis by keeping silent for a while.C. Because he knew that his daughter would not listen to him at that moment.D. Because he wasn’t quite sure which girl was telling the truth.64. Which do you think would be the best title for this passage?A. Not an Enemy, but the Best FriendB. The Best Advice I’ve Ever HadC. My FatherD. My Childhood(B)Science can't explain the power of pets, but many studies have shown that the company of petscan help lower blood pressure and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and were put on a diet-and-exercise programs; a separate group of 56 fat people without pets were put on a diet program. On average,people lost about 11 pounds,or 5% of their body weight .Their dogs did even better,losing an average of 12 pounds,more than 15%of their body weight .Dog owners didn’t lose any more weight than those without dogs but ,say researchers,got more exercise overall –mostly with their dogs –and found it worth doing.65.What does the text mainly discuss?A. What pets bring to their ownersB. How pets help people calm downC. People’s opinions of keeping petsD. Pet’s value in medical research66.We learn from the text that a person with heart disease has a better chance of getting well if_________A. he has a pet companionB. he has less stress of workC. he often dose mental arithmeticD. he is taken care of by his family67.According to Allen, why did the people do better with pets around when facing stressful tasks?A. They have lower blood pressure.B. They become more patient.C. They are less nervous.D. They are in higher spirits.68.The research mentioned in the last paragraph reports thatA. people with dogs did more exerciseB. dogs lost the same weight as people didC. dogs liked exercise much more than people didD. people without dogs found the program unhelpful(C)The market is a concept. If you are growing tomatoes in your backyard for sale you are producing for the market. You might sell some to your neighbor and some to the local manager of the supermarket. But in either case, you are producing for the market. Your efforts are beingdirected by the market. If people stop buying tomatoes, you will stop producing them.If you take care of a sick person to earn money, you are producing for the market. If your father is a steel worker or a truck driver or a doctor or a grocer, he is producing goods or service for the market.When you spend your income, you are buying things from the market. You may spend money in stores, supermarkets, gas station and restaurants. Still you are buying from the market. When the local grocer hires you to drive the delivery truck, he is buying you in the labor market.69. Which of the following would be the best title of the passage?A. Selling and BuyingB. Everything you do is producing for the market.C. What is the market?D. What the market can do for you.70. All of the following acts are producing for the market except_______.A. working in a bankB. attending a night schoolC. printing a bookD. growing beans for sale71. You are buying from the market when you ________.A. borrow a book from the library.B. walk to the seaside for a holiday.C. look after your children.D. dine at restaurant.72. The word ―concrete‖ in the last paragraph may most pr obably mean______.A. seriousB. importantC. necessaryD. realSection C (2 % * 4=8%)Directions: Read the following passage carefully and then answer the questions or complete the statements with fewest possible words.Where in the wor ld can you take an hour’s train ride, and pass a forest, a London street, a scene from the Wild West, and a burning building that never burns down? There’s only one place, and that’s Hollywood, in California. The scenes you see from the tourist train are f ilm sets in the Universal Studios, one of the oldest and largest movie companies in the USA.A visit to Universal Studios brings back memories of great days of Hollywood, the films and the stars. But they are only memories. Hollywood isn’t quite the sam e as it used to be. Costs have gone up and confidence has gone down. Movie-makers are afraid to spend their money on expensive new ideas. Instead, they repeat old ones.Though it is soap operas that are keeping the film-makers of Hollywood in business, big films are still being made in America. But more and more of them are made outside Hollywood. New York is the most important new center, but there are many others as well. Movie-makers have realized that they don’t need Hollywood any more—modern cameras and real houses instead of expensively made copies in a studio. Other states, especially Florida and Texas, are working hard to take the film business away from California. They are offering better working conditions and lower costs.But Hollywood is fighting back. The state of California is trying hard to keep its best-known industry.(Note: Answer the questions or complete the statements with NO MORE THAN 13 WORDS)73. What is Universal Studios?____________________________________________________________________________74. Why do movie makers repeat old ideas instead of spending the money on expensive new ideas?___________________________________________________________________________75. According to the passage, more and more big films are made outside Hollywood while _____________________ are still being made in Hollywood.76. Florida and Texas are trying to take the film business away from California by _____________________________________________________________________IV. Translation (20%)Directions: Translate the following sentences into English, using the words given in the brackets.77. 他的演讲给在场的学生留下了深刻的印象。
2013-2014学年度第一学期高一级期末考试一.选择题(每小题5分,共50分,每小题只有一个选项是正确的) 1. 已知集合M ={x|x <3},N ={x |122x>},则M ∩N 等于( ) A ∅B {x |0<x <3}C {x |-1<x <3}D {x |1<x <3}2. 已知三条不重合的直线m 、n 、l 两个不重合的平面βα,,有下列命题 ①若αα//,,//m n n m 则⊂; ②若βαβα//,//,则且m l m l ⊥⊥; ③若βαββαα//,//,//,,则n m n m ⊂⊂;④若αββαβα⊥⊥⊂=⊥n m n n m 则,,,, ;其中正确的命题个数是( )A .1B .2C .3D .4 3. 如图,一个简单空间几何体的三视图中,其正视图与侧视图都是边长 为2的正三角形,俯视图轮廓为正方形,则其侧面积是( ) A .4. 函数()23xf x x =+的零点所在的一个区间是( )A .()2,1--B .()1,0-C .()0,1D .()1,25. 如图,在正方体ABCD-A 1B 1C 1D 1中,异面直线A 1B 和AD 1所成角的大小是( ) A. 30° B. 45° C.90° D.60°6. 已知函()()21,1,log ,1.a a x x f x x x --⎧⎪=⎨>⎪⎩≤若()f x 在(),-∞+∞上单调递增,则实数a 的取值范围为( ) A . ()1,2B . ()2,3C . (]2,3D . ()2,+∞7. 如图在正三棱锥A-BCD 中,E 、F 分别是AB 、BC 的中点,EF ⊥DE ,且BC =1,则正三棱锥A-BCD的体积是 ( )243D. 123C. 242B. 122.A8. 函数y =log 2(1-x )的图象是( )俯视图正视图 侧视图9. 已知)(x f 是定义在R 上的函数,且)2()(+=x f x f 恒成立,当)0,2(-∈x 时,2)(x x f =,则当[]3,2∈x 时,函数)(x f 的解析式为 ( )A .42-x B .42+x C .2)4(+x D . 2)4(-x10. 已知)91(log 2)(3≤≤+=x x x f ,则函数[])()(22x f x f y +=的最大值为( )A .6B .13C .22D .33二.填空题(每小题5分,共20分)11. 一个长方体的各顶点均在同一球的球面上,且一个顶点上的三条棱的长分别为1,2,3,则此球的表面积为 .12. 已知函数()()223f x x m x =+++是偶函数,则=m .13. 已知直二面角βα--l ,点A ∈α,AC ⊥l ,C 为垂足,B ∈β,BD ⊥l ,D 为垂足, 若AB=2,AC=BD=1则C,D 两点间的距离是_______14. 若函数2()log (2)(0,1)a f x x x a a =+>≠在区间102⎛⎫ ⎪⎝⎭,恒有()0f x >,则()f x 的单调递增区间是三.解答题(本大题共6小题,共80分。
2023-2024学年高一上学期期末考试物理试卷(含答案)本试卷满分100分,考试用时75分钟。
注意事项:1.答题前,考生务必将自己的姓名、考生号、考场号、座位号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
回答非选择题时,将答案写在答题卡上。
写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
4.本试卷主要考试内容:人教版必修第一册。
一、选择题:本题共10小题,共46分。
在每小题给出的四个选项中,第1~7题只有一项符合题目要求,每小题4分;第8~10题有多项符合题目要求,每小题6分,全部选对的得6分,选对但不全的得3分,有选错的得0分。
1.在研究物体下落的运动中,某位科学家通过逻辑推理,首先指出亚里士多德对落体认识的问题,然后得出“质量大的物体与质量小的物体应该下落得同样快”的结论。
这位科学家是()A.伽利略B.牛顿C.爱因斯坦D.居里夫人2.在物理学中,只要选定几个物理量的单位,就能利用物理量之间的关系推导出其他物理量的单位。
这些被选定的物理量叫作基本量,它们相应的单位叫作基本单位。
下列单位中,属于基本单位的是()A.NB.N/mC.m/sD.kg3.如图所示,在学校趣味运动会中,两同学同时从圆形轨道的A点出发,分别沿ABC和ADE方向行走,在E点相遇。
从出发到相遇的过程中,描述两同学运动情况的物理量不同的是()A.时间B.位移C.平均速度D.路程4.某地铁站配置了智能化电动扶梯,当扶梯上没人时,扶梯是静止的,当乘客站上扶梯时,扶梯先加速,再匀速上升。
当扶梯加速上升时,站在扶梯上的乘客()A.受到的重力变大B.受到的重力变小C.处于超重状态D.处于失重状态5.物体A的质量为2kg,物体B的质量为1kg,它们分别以10m/s和20m/s的速度运动。
下列说法正确的是()A.物体A的惯性比物体B的惯性大B.物体B的惯性比物体A的惯性大C.物体A、B的惯性一样大D.条件不足,无法比较物体A、B的惯性大小6.毽球是一项简便易行的健身运动,有助于活动筋骨。
秘密★启用前云南省昆明市五华区2023-2024学年高一上学期期末考试语文试题【考试时间:1月11日 14:00—16:30】注意事项:1.答题前,考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上填写清楚,并认真核准条形码上的准考证号、姓名、考场号、座位号及科目,在规定的位置上贴好条形码。
2.回答选择题时,选出每小题答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦擦干净后,再选涂其他答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将答题卡交回。
一、现代文阅读(35分)(一)现代文阅读Ⅰ(本题共5小题,19分)阅读下面的文字,完成小题。
材料一:你如果曾在云南省澜沧县的农田里看见他,或许想不到他是一位院士。
他时常头顶草帽,卷着半边裤腿,扛着锄头,脖子上搭一条毛巾,“吧嗒吧嗒”地和农民聊天,手把手地教他们种马铃薯。
他就是“农民院士”朱有勇。
朱有勇的确“有勇”。
2015年,中国工程院确定了澜沧县作为院士专家科技扶贫点,朱有勇请缨到澜沧扶贫。
那一年,他已经60岁。
来到澜沧后,他跑到农户家里走访,发现很多农户住着四处漏风的篱笆房,家里只有几袋苞谷、几只鸡。
看到这些,他的眼泪忍不住地往下掉。
“是真的穷,”朱有勇说,“我们是人民培养出来的科技工作者,却没有让这里的老百姓享受到我们的科研成果,这是我们的亏欠。
”他就下定决心,留在这里。
在科研方面,朱有勇是专家,但在扶贫上,他还是个“新手”。
他首先面临着一个迫在眉睫的问题——农民们应该种什么。
经过深入考察,他发现这里很适合种植“冬季马铃薯”,因为马铃薯在生长过程中最怕下雨,而澜沧县的冬天几乎无雨,温度最低12℃。
这样的气候不仅适宜马铃薯生长,且能让其品质更佳。
朱有勇越想越兴奋:“这简直是为马铃薯‘量身定做’的!”他想到这里,不禁笑出声来。
但种植“冬季马铃薯”是一个冒险的决定。
云南并不是马铃薯的主产区,更鲜有人尝试在冬天种植。
2013——2014学年度高二上学期期末考试优秀学生名单理科文科班级姓名总分校序班级姓名总分二(3)班魏准6181二(17)班叶子宁528二(3)班袁派6052二(17)班姜洋511二(4)班王瑞5973二(17)班李蕾511二(4)班童雅婷5934二(17)班叶子康510二(4)班袁莎5934二(18)班汪梦婷510二(4)班胡宏浩5916二(17)班郑寒509二(4)班叶荣浩5897二(18)班李文豪502二(2)班袁鹏举5868二(17)班张畅498二(4)班刘菲5809二(18)班陶希宇489二(4)班陈思怡57910二(17)班桂思情488二(2)班余进57910二(17)班余莎485二(4)班周佳豪57910二(17)班桂茜484二(1)班程江成57813二(17)班黄晨元483二(1)班黄玲57813二(18)班林洋483二(1)班曾庆翔57715二(18)班陈文浩481二(2)班牛俊杰57616二(17)班刘忆霖467二(4)班陈志刚57517二(18)班万晶466二(3)班李加林57418二(17)班陶晶465二(3)班陶思行57418二(18)班王曦464二(2)班万锋达57418二(18)班金聪464二(2)班沈彬57221二(17)班汪炼463二(4)班陶红涛57221二(18)班柳诗461二(1)班周池57123二(18)班吕思敏459二(4)班陈冲57123二(17)班胡芳455二(4)班陈鹏飞56925二(18)班陈昊455二(4)班陶柳正56826二(18)班王浩怡450二(1)班钟恒56727二(17)班蔡莹449二(1)班余艳秋56528二(17)班邵畅449二(1)班张欢56429二(18)班蔡竹馨448二(1)班商奇志56230二(18)班汪洋溢445二(2)班童栋56131二(18)班李冠群443二(2)班陆建设56131二(18)班邓陈缘441二(4)班戢梦晗56033二(18)班谢睿林440二(2)班张佩欣55734二(17)班杨晨雪439二(4)班蔡鑫55535二(18)班张一飞439二(2)班李诗瑶55535二(18)班雷雯婷436二(3)班叶金玲55437二(18)班余孙龙433二(2)班陈健55338二(17)班朱梦圆433二(4)班张诗55239二(17)班张倩薇430二(2)班梅杰55239二(17)班邱思琦426二(2)班李晨55239二(17)班孙曼425二(1)班林佳慧55142二(16)班孙云422二(3)班程诗琪55043二(17)班吴凡421二(4)班李智54944二(17)班周瑶420二(1)班盛斌54645二(17)班陶徐斯靓419二(4)班侯嘉54645二(18)班陈雅贤418二(1)班张浩54547二(18)班肖爽418二(4)班陶鑫54448二(16)班王思源418二(2)班操能雄54448二(18)班陈维峰417二(7)班胡一丹54350二(18)班邱榕417二(1)班周仲义54251二(17)班姚仕林417二(11)班张建54152二(17)班谢晴416二(3)班徐丽娟54053二(15)班周奕416二(5)班李欢53954二(17)班杜梅415二(10)班林莉娟53855二(18)班朱琳413二(1)班张燕53756二(16)班王思411二(3)班周英杰53756二(18)班张杉408二(3)班胡磊53756二(17)班罗露408二(5)班高逸凡53756二(17)班李文轩406二(4)班朱时光53660二(17)班易泽新406二(3)班李奇53660二(17)班杨陶405二(3)班周彬53660二(17)班陶樊405二(4)班余平53660二(18)班喻程404二(6)班林雪凯53660二(17)班朱棣文397二(3)班韩志亮53465二(16)班周丽莎397二(1)班刘爽53465二(16)班陈薇396二(1)班屈引航53465二(17)班冯丹396二(3)班林磊53368二(18)班袁紫荆396二(2)班林伟圣53368二(16)班熊园园392二(1)班蔡超53270二(17)班姚锦楠392二(3)班蔡欢53270二(17)班徐靖391二(3)班李鑫53270二(18)班陈汝璇390二(7)班贺博53270二(18)班周淼390二(2)班张佳洁53174二(15)班周林389二(1)班童瑶53174二(18)班陶雨婷388二(1)班沈礼思53076二(17)班万欣388二(2)班朱诚53076二(16)班黎婷387二(10)班倪丹53076二(17)班周诗瑶386二(1)班周宇52979二(16)班王哲明386二(3)班陈进52979二(18)班夏辉386二(2)班李新雨52979二(16)班杨梓琪385二(6)班余佩52979二(18)班吕玉琳384二(2)班周慧52883二(17)班夏春瑶384二(2)班童玲52883二(16)班张红384二(2)班朱贝52883二(18)班徐紫旋382二(5)班雷希君52883二(16)班林珊380二(1)班邵慧娟52787二(18)班程慧娟379二(3)班张俊52588二(18)班程爽379二(4)班张嘉威52588二(16)班邱博文379二(1)班张梦飞52588二(18)班胡格378二(2)班罗杜祥52491二(3)班梅香52491二(1)班曾凯进52393二(4)班方乐52393二(3)班程想52393二(1)班魏佳52393二(6)班柳桥52393二(1)班陶植52298二(4)班陶诗琪52199二(4)班范成果52199二(1)班汪丰伟520101二(5)班万宜民520101二(3)班夏天519103二(4)班周岸文519103二(4)班闵泽源519103二(2)班段芬芹519103二(6)班朱金港519103二(3)班王振伟518108二(2)班杨国威518108二(1)班袁遥518108二(10)班杨健丽518108二(3)班蔡开明517112二(3)班林雨517112二(6)班华堂517112二(6)班徐娜517112二(5)班许柯涵516116二(1)班徐叶强515117二(6)班林锋515117二(2)班方磊514119二(11)班吴菁514119二(4)班陈优513121二(2)班余文广513121二(1)班郑凤仪511123二(2)班冯学海510124二(4)班汪志杰510124二(3)班程志慧510124二(4)班童超凡509127二(5)班陈伊珉509127二(2)班刘毅508129二(1)班周莹枝507130二(5)班周志磊507130二(2)班邱小宝506132二(1)班程兰君506132二(2)班叶诗雨506132二(8)班雷梦琳506132二(4)班邱虹505136二(1)班童新504138二(4)班胡蔡丽504138二(1)班邹彧504138二(3)班陶雨504138二(1)班汪思莹504138二(2)班胡润生503143二(4)班王妍503143二(5)班王加伟503143二(8)班童慧群503143二(2)班肖雨502147二(4)班宋亚琴502147二(2)班陶梦婷502147二(12)班魏俊丽502147二(8)班盛诗敏502147二(6)班牛雨晴502147二(7)班屈博琦502147二(4)班王超501154二(5)班程济501154二(6)班陈佩501154二(7)班雷蕾500157二(5)班易雁宁500157二(6)班周程进500157二(7)班向悦500157二(13)班余俊松500157二(3)班陈子豪499162二(4)班张浩林498163二(2)班周堃498163二(3)班徐聪达497165二(6)班杨小东497165二(3)班潘虹羽496167二(1)班叶耀锴495168二(8)班童爽495168二(2)班喻雷搏494170二(2)班陶芮494170二(1)班程骞494170二(11)班段文顺494170二(5)班童浩494170二(13)班姚远494170二(2)班叶诗瑶493176二(3)班程颖493176二(2)班贺兴旺493176二(4)班秦鹏493176二(3)班邱雨蒙493176二(7)班林欢493176二(13)班游亮杰493176二(2)班万姝婷492183二(11)班马莹492183二(3)班林志荣491186二(1)班陶梦琪491186二(1)班周姣491186二(9)班邱丽霞491186二(3)班陶凯文490190二(5)班夏一帆490190二(8)班陈意芬490190二(13)班张娟婷490190二(7)班袁玉芬490190二(3)班程贝489195二(2)班张欢488196二(1)班黄坤488196二(10)班周圆488196二(13)班孙敏488196二(11)班周林487200二(4)班严杏枝486201二(13)班程钊486201二(3)班张桢485203二(6)班郭志君485203二(5)班胡铖琛485203二(5)班陈港丽485203二(9)班陈亮485203二(5)班郭铮485203二(6)班魏康484209二(13)班余婷483210二(6)班陈泽宁483210二(10)班孙浩峰483210二(3)班陶志482213二(2)班雷秭君482213二(4)班万斯哲482213二(3)班潘娟娟482213二(5)班童翾482213二(6)班程珍482213二(7)班王明482213二(6)班徐佳薇482213二(6)班周鸿焱482213二(4)班袁婷481222二(5)班张林海481222二(13)班李志鹏481222二(7)班邱鹏481222二(5)班谢颖481222二(1)班罗益欣480227二(1)班林雷480227二(3)班程萍480227二(3)班方虹480227二(12)班张文飞480227二(11)班张思洁480227二(8)班陶悦479234二(4)班王芸芸478235二(4)班邵逸旭478235二(5)班黄习478235二(7)班陈旭恒478235二(5)班叶文贤478235二(4)班陶鹏飞477240二(4)班邵晏477240二(1)班涂超雄477240二(7)班林鑫477240二(5)班刘若琳477240二(6)班魏青477240二(11)班高选477240二(13)班栗健477240二(3)班朱琦476248二(9)班余强476248二(5)班童伟476248二(8)班周宇杰476248二(5)班熊圆476248二(8)班姜浠476248二(13)班杨媛476248二(12)班程梦玲475255二(7)班吴意475255二(5)班周佩莹475255二(5)班胡满474258二(2)班叶慧玲473259二(5)班邱淞473259二(5)班王晓473259二(6)班胡淼473259二(7)班詹迪473259二(2)班李志杰472264二(1)班叶陟天472264二(10)班张欣晨472264二(2)班周梦婷471267二(5)班郭城471267二(7)班刘逸471267二(7)班李清新471267二(11)班贺晴470271二(9)班胡俊成470271二(12)班张灿470271二(5)班梅云松470271二(5)班孙权470271二(7)班张喜林470271校序12244678910111213131516171819192122232424262727293031323334343637373940414244 45 46 46 46 49 49 49 52 52 54 55 56 57 57 59 59 61 61 63 64 64 66 66 66 69 69 71 72 72 74 75 75 77 78 78 78 81 82 82 82 85 86 87 87 87。
1.下面给出的物理量中,哪个物理量是标量 ( )A .位移B .力C .路程D .速度5.甲、乙两物体在同一条直线上,甲以v =6m/s 的速度作匀速直线运动,在某时刻乙以a=3m/s 2的恒定加速度从静止开始运动,则( B )A .在2s 内甲、乙位移一定相等B .在2s 时甲、乙速率一定相等C .在2s 时甲、乙速度一定相等D .在2s 内甲、乙位移大小一定相等 3.在研究下述运动时,能把物体看作质点的是 ( )A.研究地球的自转效应B.研究乒乓球的旋转效应C .研究火车从南京到上海运行需要的时间 D.研究一列火车通过长江大桥所需的时间1.下列关于力和运动关系的说法中,正确的是( D )A .没有外力作用时,物体不会运动,这是牛顿第一定律的体现B .物体受力越大,运动得越快,这是符合牛顿第二定律的C .物体所受合外力为0,则速度一定为0;物体所受合外力不为0,则其速度也一定不为0D .物体所受的合外力最大时,速度却可以为0;物体所受的合外力为0时,速度却可以最大8.如图所示,在μ=01.的水平面上向右运动的物体,质量为20kg ,在运动过程中,还受到一个水平向左大小为10N 的拉力作用,则物体受到滑动摩擦力为:(g = 10N / kg ) A .10N ,向右; B .10N ,向左; C .20N ,向右; D .20N ,向左。
7.物体做直线运动的v-t 图象如图所示,若第1 s 内所受合力为F 1,第2 s 内所受合力为F 2,第3 s 内所受合力为F 3,则( A )A .F 1、F 2、F 3大小相等,F 1与F 2、F 3方向相反B .F 1、F 2、F 3大小相等,方向相同C .F 1、F 2是正的,F 3是负的D .F 1是正的,F 1、F 3是零6.关于超重和失重,下列说法正确的是 CDA 、超重就是物体所受的重力增加B 、失重就是物体所受的重力减少C 、在太空站中宇航员处于完全失重状态D 、不论超重、失重或完全失重,物体所受的重力是不变的9.在同一平面上大小不同的三个共点力,同时作用在同一个物体上,以下各组力中,能使物体平衡的是 ( BC )A .3N 、4N 、8NB .2N 、6N 、7N第 7 题图C .5N 、7N 、12ND .4N 、5N 、10N2. 一汽车在路面情况相同的公路上直线行驶,下面关于车速、惯性、质量和滑行路程的讨论正确的是:BCA .车速越大,它的惯性越大B .质量越大,它的惯性越大C .车速越大,刹车后滑行的路程越长D .车速越大,刹车后滑行的路程越长,所以惯性越大9.两车从同一车站同时向同一方向行驶做直线运动,v -t 图象如图2-3-3.则 BDA .在2 s 时两车相遇,乙车追上甲车B .在4 s 时两车相遇,乙车追上甲车C .乙车追上甲车时,乙车的速度等于甲车的速度D .乙车追上甲车时,乙车的速度大于甲车的速度三、实验题(每空3分,共9分)15.在“测定匀变速直线运动的加速度”实验中,得到一条纸带如图。
纸带上的A 、B 、C 、D 、E 、F 是记数点(每打五次点取一个记数点)。
打点计时器接在频率为50赫兹的低压交流电源上。
已知AB=3.00厘米,BC=4.20厘米,CD=5.40厘米,DE=6.60厘米,EF=7.80厘米。
则小车做匀变速直线运动的加速度a= m/s 2,在打点计时器打下B 点时,小车运动的速度V B = m/s 。
16.从探究求合力的实验可知,两个大小不变的力1F 、2F 的合力随着1F 、2F 的夹角增大而。
(填“增大”或“减小”)15.1.2 0.36 16.减小12.某同学在加速度和力、质量的关系的实验中,测得小车的加速度a 和拉力F 的数据如下表所示(1)根据表中的数据在坐标图上作出a-F 图象 (2)图像的斜率的物理意义是____________A B C D E F . . . . . . 图2-3-3(3)图像(或延长线)与F 轴的截距的物理意义是_____________ (4)小车和砝码的总质量为_____ kg12.(1) (2(3)小车受到的阻力为0.1N (18.(9分)重100N 的物体放在水平地面上,用10N 的水平拉力正好使物体做匀速直线运动,求:(1)物体与地面间的动摩擦因数;(2)当水平拉力的大小变为100N 时,物体所受的摩擦力又是多少?18.解:(1)由于物体做匀速直线运动所以F= f =μG 即μ=F/G=10/100=0.1(2)当水平拉力的大小变为100N 时,物体所受的摩擦力f =F=10N16.物体质量m=6kg ,在水平地面上受到与水平面成370角斜向上的拉力F=20N 作用,物体以10m/s 的速度作匀速直线运动,求力F 撤去后物体还能运动多远?16:FCosθ-μF N =0 F N +FSinθ-mg=0μ=1/3 a=μg=10/3 m/s 2 x=15mF fF N17.A 、B 两个质点在一直线上运动,运动过程中的位移与时间的关系(s-t 图象)如图-3所示,讨论下列的问题(1)A 、B 质点各做什么运动?(2)A 、B 质点在3 s 内的位移分别是多少?(3)A 、B 质点在运动的过程中,每秒内的位移的变化分别是多少?17. (1)A 、B 各质点做匀速直线运动;B 沿s 轴的正方向运动;A 沿s 轴的负方向运动;(2)A 的位移的大小是3 m ;B 的位移的大小是5 m(3)A 运动中每秒的位移的变化是1 m ,B 运动中每秒的位移的变化是53m 18.(10分)甲、乙两车从同一地点同向行驶,但是甲车做匀速直线运动,其速度为v =20 m /s ,乙车在甲车行驶至距离出发地2000 m 处时开始以初速度为零,加速度为a =2 m /s 2追甲,求乙车追上甲车前两车间的最大距离.18(10分)解:两车相遇前距离最大时两车速度必然相等,则运动时间t 为:t =a v =220s =10 s 所以Δs m =s 0+vt -21a t 2=200+20×10-21×2×102m =300m .16.某校一课外活动小组自制一枚火箭,设火箭发射后始终在垂直于地面的方向上运动.火箭点火后可认为做匀加速直线运动,经过4 s 到达离地面40 m 高处时燃料恰好用完,若不计空气阻力,取g =10 m/s 2,求: (1)燃料恰好用完时火箭的速度; (2)火箭上升离地面的最大高度;图-3(3)火箭从发射到残骸落回地面过程的总时间.16. 解析:设燃料用完时火箭的速度为v 1,所用时间为t 1.火箭的上升运动分为两个过程,第一个过程为做匀加速上升运动,第二个过程做竖直上抛运动至到达最高点. (1)对第一个过程有h 1=v 12t 1,代入数据解得v 1=20 m/s.(2)对第二个过程有h 2=v 122g,代入数据解得h 2=20 m所以火箭上升离地面的最大高度h =h 1+h 2=40 m +20 m =60 m.(3)方法一 分段分析法从燃料用完到运动至最高点的过程中,由v 1=gt 2得 t 2=v 1g =2010s =2 s从最高点落回地面的过程中,h =12gt 32,而h =60 m ,代入得t 3=2 3 s故总时间t 总=t 1+t 2+t 3=(6+23) s.15、(10分)如图所示,质量为m 的物体在斜向上与水平方向成θ角的拉力F 的作用下,沿水平面做匀速直线运动,已知物体与水平面之间的动摩擦因数为μ,求拉力F 的大小。
15、解:对物体受力分析,建立如图所示直角坐标系,(1分)由物体做匀速直线运动得F 合=0 即F x 合= F 拉cos θ - f =0(3分) F y 合=N+ F 拉sinθ - mg =0(2分) 又f=μN∴F 拉cos θ=μ(mg –F 拉sin θ) (2分) ∴ F 拉=θμθμsin cos mg+(2分)16、(10分)质量为10kg 的物体在20N 水平力作用下,从静止开始在光滑水平面上运动,运动5秒后撤去水平力.求物体从开始运动到10s 末,物体经过的位移和10s 末的速度? 16、解:物体在光滑水平面上不受摩擦力,则前5秒内物体做匀加速直线运动,后5秒做匀速直线运动, (1分) ∴a=m F ,(2分)s 1=21at 12=25m, (2分) v 1=at 1=10m/s, (2分)s 2=v 1t 2=50m, (2分) s= s 1+ s 2=75m (1分)∴10秒球的速度v=10m/s,s=75m 16.(6分)如图12所示,木块重60 N ,放在倾角θ=37°的斜面上,用F =10 N 的水平力推木块,木块恰能沿斜面匀速下滑,求: (1)木块与斜面间的摩擦力大小;(2)木块与斜面间的动摩擦因数.(sin37°=0.6,cos37°=0.8) 16.解: 物体的受力情况如图,建立图示直角坐标系mg sin θ-F f -F cos θ=0 ① ……(2分)F N -mg cos θ-F sin θ=0② ……(2分)由①得:F f =mg sin θ-F cos θ=60×0.6 N-10×0.8 N=28 N由②得:F N =mg cos θ+F sin θ=60×0.8 N+10×0.6 N=54 N (1分) 根据F f =μF N 得 μ=Nf F F =5428=0.52 ……(1分)21.一辆载货的汽车,总质量是4.0×103kg ,牵引力是4.8×103N ,从静止开 始运动,经过10s 前进了40m 。
求汽车受到的阻力。
21.根据221at S = ∴22tS a =代入数据2/8.0s m a = 根据∑F=ma ∴F-f=ma∴N f 3106.1⨯=。
图1216.物体质量m=6kg ,在水平地面上受到与水平面成370角斜向上的拉力F=20N 作用,物体以10m/s 的速度作匀速直线运动,求力F 撤去后物体还能运动多远?16:FCosθ-μF N =0 F N +FSinθ-mg=0μ=1/3 a=μg=10/3 m/s 2 x=15m 17.A 、B 两个质点在一直线上运动,运动过程中的位移与时间的关系(s-t 图象)如图-3所示,讨论下列的问题(1)A 、B 质点各做什么运动?(2)A 、B 质点在3 s 内的位移分别是多少?(3)A 、B 质点在运动的过程中,每秒内的位移的变化分别是多少?17. (1)A 、B 各质点做匀速直线运动;B 沿s 轴的正方向运动;A 沿s 轴的负方向运动;(2)A 的位移的大小是3 m ;B 的位移的大小是5 m(3)A 运动中每秒的位移的变化是1 m ,B 运动中每秒的位移的变化是53m 18.(10分)甲、乙两车从同一地点同向行驶,但是甲车做匀速直线运动,其速度为v =20 m /s ,乙车在甲车行驶至距离出发地2000 m 处时开始以初速度为零,加速度为a =2 m /s 2追甲,求乙车追上甲车前两车间的最大距离.18(10分)解:两车相遇前距离最大时两车速度必然相等,则运动时间t 为:G F fF N图-3t =a v =220s =10 s 所以Δs m =s 0+vt -21a t 2=200+20×10-21×2×102m =300m .16.某校一课外活动小组自制一枚火箭,设火箭发射后始终在垂直于地面的方向上运动.火箭点火后可认为做匀加速直线运动,经过4 s 到达离地面40 m 高处时燃料恰好用完,若不计空气阻力,取g =10 m/s 2,求: (1)燃料恰好用完时火箭的速度; (2)火箭上升离地面的最大高度;(3)火箭从发射到残骸落回地面过程的总时间.16. 解析:设燃料用完时火箭的速度为v 1,所用时间为t 1.火箭的上升运动分为两个过程,第一个过程为做匀加速上升运动,第二个过程做竖直上抛运动至到达最高点. (1)对第一个过程有h 1=v 12t 1,代入数据解得v 1=20 m/s.(2)对第二个过程有h 2=v 122g,代入数据解得h 2=20 m所以火箭上升离地面的最大高度h =h 1+h 2=40 m +20 m =60 m.(3)方法一 分段分析法从燃料用完到运动至最高点的过程中,由v 1=gt 2得 t 2=v 1g =2010s =2 s从最高点落回地面的过程中,h =12gt 32,而h =60 m ,代入得t 3=2 3 s故总时间t 总=t 1+t 2+t 3=(6+23) s.。