黑龙江省五常市雅臣中学2018届高三上学期第一次强化训练 英语
哈三中2018届高三第一次模拟考试英语试题(含答案)(2018.03)

哈三中2018届高三第一次模拟考试英语试题(含答案)(2018.03)2018年哈尔滨市第三中学第一次高考模拟考试英语试卷本试卷分为第I卷和第II卷两部分。
第I卷1至8页,第II卷9至10页。
考试结束,将本试卷和答题卡一并交回。
第I卷注意事项:1. 答第I 卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2. 选出每小题答案后,用2B铅笔把答题卡上所对应题目的答案标号框涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号框。
不能答在本试卷上,否则无效。
第一部分:听力(共两节,满分30分)第一节(共5 小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where does the conversation most probably take place?A. In an office.B. In a library.C. In a bookstore.2. Where did the speakers plan to go?A. A shopping center.B. An opera house.C. The parking lot.3. Which aspect of the film does the woman like?A. The plot.B. The music.C. The dialogue.4. What do we know about the woman’s jacket?A. It is sold at a lower price.B. It is her favorite color.C. It is her sister’s size.5. What does the woman imply?A. The man is so forgetful.B. The man is too careless.C. The man is over confident.第二节(共15 小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
2018中招第一次强化训练九年级英语(含答案)

2018中招第一次强化训练九年级英语试题一.听力理解(20小题,每小题1分,共20分)第一节听下面五段对话。
每段对话后有一个小题,从题中的A、B、C三个选项中选出最佳答案,并将其标号、题前括号内。
每段对话读两遍。
( )1. Where is David's iPhone 6?A. On the desk.B. On the chair.C. In the bookcase.( )2. How much is the man's new car?A. $500,000.B. $50,000.C. $5,000.( )3. What did the boy do on the beach?A. He had a picnic.B. He swam.C. He played beach volleyball. ( )4. What does the boy's pen pal look like?A. She has short straight hair.B. She has long curly hair.C. She has long straight hair.( )5. What did the man have for breakfast today?A. Mutton noodles.B. Mutton soup.C. Tomato soup.第二节听下面几段对话或独白。
每段对话或独白后有几个题,从题中所给的A、B、C 三个选项中选出最佳答案,将其标号填入题前括号内。
每段对话或独白读两遍。
听下面一段对话.回答第6至第7两个小题。
( )6. How old is the daughter?A. 16.B. 18.C. 19.( )7. How much should the madam pay for the scarf?A. ¥60.B. ¥80.C. ¥l00.听下面一段独白,回答第8至第10三个小题。
2017-2018学年黑龙江省五常市雅臣中学度高三上学期第一次强化训练物理试卷

高三物理上学期第一次强化考试试题一.选择题:(4×14=56分,1——9单选,10——14多选)1.将地面上静止的货物竖直向上吊起,货物由地面运动至最高点的过程中,图象如图所示.以下判断正确的是( )A.前3内货物处于超重状态B.最后2内货物只受重力作用C.前3内与最后4内货物的平均速度相同D.第3末至第5末的过程中,货物的机械能守恒2.两个带等量正电的点电荷,固定在图中P、Q两点,MN为PQ连线的中垂线,交PQ于O点,A点为MN上的一点.取无限远处的电势为零,一带负电的试探电荷q,在静电力作用下运动,则()A.O点的电场强度E0=0,电势φ0=0VB.若在A点给q一个合适的初速度,它可以做类平抛运动C.若q从A点由静止释放,其将以O点为对称中心做往复运动D.若q从A点由静止释放,由A点向O点运动的过程中,速度一定先增大再减小,加速度大小一定先变大再减小到零,然后再变大再减小3.如图,OA、OB两绳结于圆心处,A B两点在圆周上,OA绳水平,现使A点不动,B点沿圆周从如图位置移到OB绳竖直的过程中,OA、OB两绳的拉力的变化情况是A .都变大B .都变小C . OA绳的张力一直减小,OB绳的张力一直增大D . OA绳的张力一直增大,OB绳的张力先减小后增大4.在同一光滑斜面上放同一导体棒,右图所示是两种情况的剖面图。
它们所在空间有磁感应强度大小相等的匀强磁场,但方向不同,一次垂直斜面向上,另一次竖直向上;两次导体棒A分别通有垂直纸面向里的电流I1和I2,都处于静止平衡。
已知斜面的倾角为θ,则:A.I1:I2=cosθ:1 B.I1:I2=1:1C.导体棒A所受安培力大小之比F1:F2=sinθ:cosθD.斜面对导体棒A的弹力大小之比N1:N2= 1:cos2θ5.如下图所示,已知,不计滑轮及绳子的质量,物体和恰好做匀速运动,若将与互换,、与桌面的动摩因数相同,则( )A.物体与仍做匀速运动B.物体与做加速运动,加速度C.物体与做加速运动,加速度D.绳子中张力不变6.如图所示,两平行的虚线间的区域内存在着有界匀强磁场,有一较小的三角形线框abc的ab边与磁场边界平行.现使此线框向右匀速穿过磁场区域,运动过程中始终保持速度方向与ab边垂直.则下列各图中哪一个可以定性地表示线框在上述过程中感应电流随时间变化的规律?7.质量为、速度为的球与质量为3的静止球发生正碰,碰撞后球的速度可能有不同的值.碰撞后球的速度大小可能是( )A.0.2B.0.4C.0.6D.0.88如图所示,a、、c是在地球大气层外圆形轨道上运动的3颗人造地球卫星,b,C在同一轨道,下列判断不正确的是( )A.卫星的向心加速度大于卫星a的向心加速度B.b,c卫星所受万有引力相等C.卫星的角速度等于卫星c的角速度D.卫星a的周期大于卫星的周期9.某公司为了测试摩托车的性能,让两驾驶员分别驾驶摩托车在一平直路面上行驶,利用速度传感器测出摩托车A、B的速度随时间变化的规律并描绘在计算机中,如图所示,发现两摩托车在t=25 s时同时到达目的地.则下列叙述正确的是( )A.摩托车B的加速度为摩托车A的4倍B.在0~25 s 时间内,两辆摩托车间的最远距离为400 m C .两辆摩托车从同一地点出发,且摩托车B 晚出发10 s D .在0~25 s 时间内,两辆摩托车间的最远距离为180 m10.如图所示,带电平行板间匀强电场竖直向上,匀强磁场方向垂直纸面向里,某带电小球从光滑轨道上的a点自由滑下,经轨道端点P进入板间后恰好沿水平方向做直线运动.现使小球从稍低些的b点开始自由滑下,在经过P点进入板间后的运动过程A.其动能将会增大B.小球的机械能将会增加 C.小球所受的洛伦兹力将会增大 D.其电势能将会增大11.如图所示,质量为m 的物体在水平传送带上由静止释放,传送带由电动机带动,始终保持以速度v 匀速运动,物体与传送带间的动摩擦因数为μ,物体过一会儿能保持与传送带相对静止,对于物体从静止释放到相对静止这一过程,下列说法正确的是( )A .传送带对物体做的功为221mvB .传送带克服摩擦力做的功为221mvC .电动机多做的功为2mvD .物体在传送带上的划痕长gv 2212.核能作为一种新能源在现代社会中已不可缺少,我国在完善核电安全基础上将加大核电站建设。
2018届高考英语大一轮复习规范训练:必修五 Unit 1 Great scientists 含答案

课时规范训练(二十一)Ⅰ.阅读理解A(2017·江西南昌模拟)China's admiration of outstanding scholars has turned the,the Chinese pharmacologist(药理学家)who won this year's Nobel Prize in Physiology (生理学)or Medicine,into a popular tourist destination.Chinese citizen to win this international prize,her former home in the old town of Ningbo,Zhejiang Province,has attracted visitors,especially parents and their children—even though it is not open to the public.The house,where Tu lived until she went to university in Beijing,covers an area of 2,200 square meters and is priced at 150 million yuan($23.6 million).It is part of a complex of 37 traditional buildings,including several,that have been“There are continually parents taking their children,from infants in strollers to college students,to take photos in front of Tu's former home.Security guards have been ordered to go on patrol around the clock,”said Mr.Zhao,a salesperson from Ningbo Real Estate Inc.Co.Shanghai resident Xu Lingfei,who was on a trip to Ningbo,son to walk around the complex on Wednesday.“Chinese people believe in exams and awards and have a strong preference for high performers.Taking children to visit the former dwelling places of celebrities (名人) is a way to inspire them to study harder,” Xu said.Something similar happened after Mo Yan won the Nobel Prize in Literature in 2012.Tourists started visiting Mo's former home in rural Gaomi,Shandong Province,in an endless stream starting the day after he won the prize.Some even pulled the radishes planted in front of the house and carried away some bricks.1.Tu Youyou's former house is now popular mainly because ________.A.Tu won the Nobel PrizeB.it has some cultural relicsC.it covers a large areaD.it is a great art and commercial zone2.Why did Xu Lingfei take her son to visit Tu's former home?A.She admired Tu very much.B.She planned to buy the house.C.She intended to take photos there.D.She wanted her son to be inspired.3.Where is Mo Yan's former home located?A.Shanghai. B.Gaomi.C.Ningbo. D.Beijing.4.What is the main idea of the text?A.Tu Youyou's former home is for sale.B.More Chinese have won the Nobel Prize.C.The Nobel winner's home becomes an instant attraction.D.Children benefit from visiting the Nobel winner's home.【语篇导读】本文描述屠呦呦获诺贝尔生理学或医学奖之后,她的故居大热,吸引了很多游客前来参观。
黑龙江省2018年高中学业水平测试英语---精校 Word版含答案

2018年黑龙江省高中学业水平测试英语试题(时间:120分钟满分:150分)第一部分听力部分(共20小题,每小题1.5分,满分30分)第一节(共5小题:每小题1.5分,满分7,5分)听下面5段对话,每段对话后有一个小题,从題中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置,听完每段对话后,你都有10秒钟的时间回答有关小题和阅读下一小题,每段对话仅读一遍第二部分阅读理解(共两节,满分40分)第一节(共5小题;每小题2分,满分30分)ASummertime is a great opportunity for kids to learn how to work and earn a little bit of spending money. If your child needs a summer job,here are a few options to considerLemonade/Cookie StandBenefitsYour child will be his own boss, set his own price, and run the show. It's a greatintroduction to running his own business.Limited Start-up Costs: The things used to make lemonade are cheap, so your child should be able to get back his investment with a handful of sales.What Kids Learn About Money:Your child will learn a very valuable lesson about pricing. The price of his lemonade will decide how much he can sell, if he will recover his investment and the amount of profitYard WorkBenefits:Repeated Customers: If a homeowner needs help raking (耙地) this year, he’ll probably want help again next year. Your child should be able to maintain a regular set of customers after one season.Safety: Yard work is generally safer than a lawn-mowing job. Without having to operate machines, your child will be much safer.What Kids Learn About Money:Because of the variability(易变性)in pay,your child will need to learn how to negotiate(谈判)a fair price with homeowners if they ask.LifeguardBenefitsResponsibility: Kids learn a lot about responsibility when lifeguarding. Theyare within rights to tell whether a certain activity is safe and are allowed to take action as they see fitExercise: Lifeguards need to be proficient at swimming and must exercise to stay in shape.What Kids Learn About Money:To be a lifeguard, one must be certified. Your child may have to pay for lifeguard training, although some employers provide it on-site.21. What are the benefits of selling lemonade or cookies for children?a. To learn how to run a business.b. To own repeated customers.c. To learn profit and loss.d. To lower the risk of losing money.A.abcB. acdC. bedD. abd22. Which is suitable if you want your child to learn communication and negotiation?A. Lemonade/Cookie Stand.B. Yard WorkC. Lifeguard.D. All of the above.23. If your kid wants to be a lifeguard, he or she has to do all the following EXCEPTA. keeping a good figureB. excelling at swimmingC. receiving training for freeD. learning to take action when necessaryBThe greatest recent social changes have been in the lives of women. During the twentieth century there has been a remarkable shortening of the proportion of woman’s life spent in caring for the children.A woman marrying at the end of the nineteenth century would probably have been in her middle twenties, and would be likely to have seven or eight children,four or five of whom lived, till they were five years old. By the time the youngest was fifteen, the mother would have been in her early fifties and would expect to live a further twenty years, during which health made it unusual for her to get paid work. Today women marry younger and have fewer children. Usually a woman's youngest child will be fifteen when she is forty-five years and can be expected to live another thirty-five years and is likely to take paid work until retirement at sixty. Even while she has to take care of children, her work is lightened by modern living conditions.This important change in women's life-patterns has only recently begun to have its full effect on women's economic position. Even a few years ago most girls took a full-time job after they left school. However, when they married, they usually left work at once and never returned to it. Today the school-leaving age is sixteen; many girlstay at school after that age, and though women usually marry older, more married women stay at work at least until shortly before their first child is born. Many more afterwards return to full-or-part-time work. Such changes have led to a new relationship in marriage, with the husband accepting a greater share of the duties and satisfactions of family life,and with both husband and wife sharing more equally in providing the money,and running the home,according to the abilities and interests of each of them.24.Which of the following is the topic of this passage?A.The marriage of women:past and present.B.Women and their jobs.C.The social changes in the lives of women.D.Women’s role in family life.25.At the beginning of the twentieth century, the amount of time the women spent taking care of children_________.A.was shorter than in previous centuriesB.Was longer than in previous centuriesC.Was considered to be surprisingly longD.Accounted for a great part of their lives26.According to the passage, it is now quite usual for women to ________.A.stay at home after leaving schoolB.marry men younger than themselvesC.start working again later in lifeD.marry while still at school27.What can be inferred from the last sentence?A.The husband tends to share greater share of duties of family life.B.In the past,the husband used to provide money for the family while the wife ran the home.C.The wife does not have her own abilities and interests.D.Both the husband and the wife should be satisfied with their family life.CTen years ago I used to be very fit.I rode a bike to work and I got a lot of exercise at weekends.I used to play tennis a lot and go for long walks.In those days I didn’t earn very much.I had a job in an office.It wasn’t a very good job but I had a lot of time to do the things I enjoyed.Then,about eight years ago,I got a much better job.The pay was better,but the hours were a lot longer.I bought a car and drove to work every day.I began to take people out to lunch.And I began to put weight,too.I stopped playing tennis and going for long walks at weekends b ecause I just didn’t have any time for things like those any more.There’s a lot of stress in my job.Perhaps that’s why I started drinking more than I used to.For example,I used to have only half a glass of whisky when I got home,but then I started filling my glass to the top,and instead of having one glass,I would have several.I started smoking a lot,too.I never used to smoke at all.Two months ago I had a heart attack.At first I just couldn’t believe it.Luckily it wasn’t very serious.The doctor advised me to work less and get more exercise.But I just haven’t any time! My job takes everything out of me!Sometimes I wonder if I should get another job.Perhaps I could do something as I used to .But if I do that,I won’t earn as much. I have a family to support, I have to think of them,too.I just don’t know what I should do.What do you think?28.C ompared with ten years ago,what is worse for the author now?A.His jobB.His payC.His means of transportD.His health29.According to the passage,when the author got the better job,which of the following is NOT true?A.He got higher payB.His working hours weren’t long.B.He found it very stressful. D.He had little free time at weekends.30.After the author had a heart attack,the doctor advise him ______________.A.not to work any longerB.to take a long vacation abroad.B.to stop smoking and take exercise D.not to eat out any more31.What can we learn about the author?A.The author is not sure what he should do now.B.The author has taken the doctor’s advice alread y.C.The author has got another new job.D.The author feels much better now.DTo get in shape soon, some people use "quick"methods without realizing that these methods can put their overall health in danger. For example, t hey lose weightby eating fat-free food. It's true that consuming fewer fats can help you get in shape sooner, but low fat foods like dried fruits, nuts, beans,etc. actually contain high amounts of calories. For example, fruit juice contains no fat, but has high calories, So drinking more than one glass of fruit juice won't help in losing weight.To rely only on fruit and vegetable juice to lose weight is also a wrong method. By replacing your meal with only juice. you decrease the calorie intake greatly. It’ll help lose weight, but it can make you suffer from lack of energy, headaches, stomach disorders, et.cIt’s true that exercise helps to keep healthy weight, but itll probably not help you much if you don’t take care of your diet by reducing your calorie intake. If you believe you can exercise every day and eat as much as you want. you re erroneous. For healthy weight loss, you need to burn more calories than you consume. So, you need to limit the intake of food.Wrong weight loss methods are dangerous. So if in doubt, you’d better ask a doctor before starting weight loss routine. Luckily, it's possible to lose weight with healthy methods, For example, follow healthy food habits, exercise regularly for20-30 minutes every day, and go on with a healthy lifestyle even after you lose weight.A nyway, as excess weight isn’t gained overnight, it cannot be lost in a short time either. Give yourself some time. Although healthy methods may take a bit longer to work, they’re surely good for your body.32. We can know from the first paragraph that_________.A. most people don’t lose weight safely B .fruit juice is low in fat and caloriesC. eating high fat foods helps lose weight D, losing weight too fast is possibly harmful33. Relying on a liquid diet to lose weight is wrong because it___________.A. reduces the calorie intake greatlyB. doesn't help you to lose weight fastC.can cause a few health problems D makes you skip meals34. How can we get more calories burnt than we consume?A. By having more rest. B By eating fruit juiceC By reducing stress. D. By eating less food for meals35. What can be inferred from the last paragraph?A. We should be patient with losing weight.B. We can actually lose weight safely and easilyC. Regular exercise is enough for us to lose weight.D.We don't have to consider our doctor's advice第二节(共5小题,每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
黑龙江省哈尔滨三中2018届高三第一次模拟考试英语试卷(含答案)

2018年哈尔滨市第三中学第一次高考模拟考试英语试卷本试卷分为第I卷和第II卷两部分。
第I卷1至8页,第II卷9至10页。
考试结束,将本试卷和答题卡一并交回。
第I卷注意事项:1. 答第I 卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2. 选出每小题答案后,用2B铅笔把答题卡上所对应题目的答案标号框涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号框。
不能答在本试卷上,否则无效。
第一部分:听力(共两节,满分30分)第一节(共5 小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where does the conversation most probably take place?A. In an office.B. In a library.C. In a bookstore.2. Where did the speakers plan to go?A. A shopping center.B. An opera house.C. The parking lot.3. Which aspect of the film does the woman like?A. The plot.B. The music.C. The dialogue.4. What do we know about the woman’s jacket?A. It is sold at a lower price.B. It is her favorite color.C. It is her sister’s size.5. What does the woman imply?A. The man is so forgetful.B. The man is too careless.C. The man is over confident.第二节(共15 小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
黑龙江省大庆四校2018届高三第一次联合阶段检测英语试卷(含答案)
2017-2018学年度上学期第一次阶段检测高三英语试题命题人:大庆市第二十三中学徐妮娜第一部分:听力(共两节30分,每小题1.5分)第一节请听下面5段对话,然后从每小题中选出最佳选项,每段对话只读一遍。
1.What will the woman do?A.Do some work.B.Go to the store.C. Drink some coffee.2.Why doesn’t the man buy a new car?A.He is on holiday.B.He is short of money.C.His car still works well.3.Who ate the most pizza?A.Clair.B.Lucy.C.Bob.4.What does the man think of his job?A.Boring and tiring.B.Interesting but tired.C.Interesting and relaxing.5.What is the relationship between the two speakers?A.Mother and son.B.Teacher and student.C.Husband and wife.第二节请听下面5段对话或独白,然后从每小题中选出最佳选项。
听第6段材料,回答第6至8题。
6.Why was Dick unhappy?A.He was caught cheating in the exam.B.He didn’t finish the math homework.C.He didn’t pass the reading test.7.What is Dick afraid of?A.Losing his face.B.Seeing his teacher.C.Seeing his father.8.What do you think of Dick?A.He didn’t like his teacher’s class.B.He spent less time reviewing his lessons.C.He likes playing computer games.听第7段材料,回答第9至11题。
2021届黑龙江省哈尔滨市一中2018级高三上学期期中考试英语试卷参考答案
2021届黑龙江省哈尔滨市一中2018级高三上学期期中考试英语参考答案1--3 ACD 4--7ABBD 8—11 BBCD 12-15ADAB16--20CFAED21--25ADCBD 26--30ACBDB 31--35ABBCA 36--40CCDAD41 – 45 CBDBD 46 – 50 BCABC 51 – 55 ABDAC 56 – 60 DACAD61. reality 62. an 63. to help 64. in 65. which66. quieter/more quiet 67. wrote 68. But 69. hiring 70. themselvesDear Susan,Thank you for your letter. Due to the fact that I am on a(删掉) business in another city, I couldn’t reply(加 to)your letter. Now I am writing to tell you that our city has done anything--something to reduce traffic jams in the last few years.First of all, two subways and some expressways have been built in my city to ease the traffic pressures--pressure. Second, one-way traffic is allowing--allowed on some main streets to reduce traffic jams and accidents. Third, public transportation had--has been improved to make it convenient for people to take buses. However--Besides, the parking fee is raised in the downtown, which helps to reduce the number of cars come--coming in and out.Now there are more buses and few--fewer cars in my city. The traffic is flowing smooth--smoothly during the rush hour.Can you tell me something about the traffic in your city?Yours, Li HuaDear Sir/Madam,I’ve read your advertisement about the summer courses so I’m writing to get further information.I’ve made an option to take the six-week English course. First, to make a thorough。
【高三英语试题精选】黑龙江哈师大附中2018届高三第一次月考英语试题.1
28 -----Where have you been all the time?
-----I came back at noon and I ________ in my room since
A hadbeen Bwas C havebeenD have gone
29 ----- What do you think of the advice ______ by our Englishteacher?
----- No one has givene itstrictly
A giving, a betterpiece B given, a betterpiece
23 I’m sorry you’ve been waiting so long, but it’ll still besome time _______ Brian gets back
beforesincetillD after
24------May I borrothese four books?
A So successful her businesswasB So successful was her business
C Such successful business shehadD So was successful her business
26 A medical team , _______ 10 doctors and 5 nurses, _______ toTaiwan
A few;someB a few;anyC few;anyD some; few
第二节 完形填空 (共medal weight lifter, and I kneaboutovering obstacles (障碍) and going for my dreams
黑龙江省五常市学高三数学上学期第一次强化训练试题 文
黑龙江省五常市2017-2018学年度高三数学上学期第一次强化训练试题 文一、选择题1.设全集U=R ,集合A={x|x 2log ≤2},B={x|(x ﹣3)(x+1)≥0},则(B C U )∩A=( ) A .(﹣∞,﹣1] B .(﹣∞,﹣1]∪(0,3) C .[0,3) D .(0,3)2.复数ii+3在复平面上对应的点位于( ) A .第一象限 B .第二象限 C .第三象限 D .第四象限 3.已知向量和,若,则=( )A .64B .8C .5D .4.如图,侧棱垂直于底面的三棱柱ABC ﹣A 1B 1C 1的各棱长均为2,其正视图如图所示,则此三棱柱侧视图的面积为( )A .2B .4C .D .25.为了了解某校今年准备报考飞行员的学生的体重情况,将所得的数据整理后,画出了频率分布直方图(如图),已知图中从左到右的前3个小组的频率之比为1:2:3,第1小组的频数为6,则报考飞行员的学生人数是( )A .36B .40C .48D .506.双曲线2221y x b-=的离心率5e = )A .12y x =±B .15y x =± C. y =±2x D .y =±5x 7.已知等差数列{a n }的前n 项和为n s ,若12543=++a a a ,则7s 的值为( ) A .56 B .42 C .28 D .14 8.已知函数f (x )=sin2x ﹣cos2x+1,下列结论中错误的是( )A .f (x )的图象关于(,1)中心对称B .f (x )在(,)上单调递减 C .f (x )的图象关于x=对称D .f (x )的最大值为39.某程序框图如图所示,运行该程序输出的k 值是( )A .4B .5C .6D .710.己知直线l 的斜率为k ,它与抛物线y 2=4x 相交于A ,B 两点,F 为抛物线的焦点,若,则|k|=( ) A . B .C .D .11.若△PAD 所在平面与矩形ABCD 所在平面互相垂直,PA=PD=AB=2,∠APD=60°,若点P ,A ,B ,C ,D 都在同一个球面上,则此球的表面积为( ) A .πB .πC .πD .π12.已知定义在(﹣1,1)上的奇函数)(x f ,其导函数为x x f cos 1)(+=',如果0)1()1(2<-+-a f a f ,则实数a 的取值范围为( )A .(0,1)B .(1,)C .(﹣2,﹣) D .(1,)∪(﹣,﹣1)二、填空题13.设实数x ,y 满足约束条件,则 z=y ﹣x 的最大值等于 .14.甲每次解答一道几何体所用的时间在5至7分钟,乙每次解答一道几何体所用的时间在6至8分钟,现甲、乙各解同一道几何体,则乙比甲先解答完的概率为 .15.若正数a ,b 满足1b 2a 1=+,则2b 11a 2-+-的最小值为 . 16.甲乙丙三人代表班级参加校运会的跑步,跳远,铅球比赛,每人参加一项,每项都要有人参加,他们的身高各不同,现了解到已下情况:(1)甲不是最高的;(2)最高的是没报铅球;(3)最矮的参加了跳远;(4)乙不是最矮的,也没参加跑步.可以判断丙参加的比赛项目是 .三、解答题(17题10分,18-22题每题12分)17.在△ABC 中,角A 、B 、C 所对的边分别为a 、b 、c .已知A b B A a a 2sin 2cos cos 2-= (1)求C ;(2)若△ABC 的面积为,周长为 15,求c .18.如图,在四棱锥P ﹣ABCD 中,底面ABCD 是菱形,∠DAB=60°,PD ⊥平面ABCD ,PD=AD=1,点E ,F 分别为AB 和PD 的中点. (Ⅰ)求证:直线AF ∥平面PEC ; (Ⅱ)求三棱锥P ﹣BEF 的体积.19. 20名学生某次数学考试成绩(单位:分)的频率分布直方图如图: (Ⅰ)求频率分布直方图中a 的值;(Ⅱ)分别求出成绩落在[50,60)与[60,70)中的学生人数;(Ⅲ)从成绩在[50,70)的学生任选2人,求此2人的成绩都在[60,70)中的概率.20.设数列{}n a 满足12a =,121n n a a n +=-+,*n N ∈.(1)求数列{}n a n -的通项公式; (2)若数列11(22)n n n b n a -=-+,求数列{}n b 的前n 项和n S .21.已知椭圆C :)0(12222>>=+b a by a x 过点)36,1(,离心率为36. (I )求椭圆C 的标准方程;(Ⅱ)设椭圆C 的下顶点为A ,直线l 过定点,与椭圆交于两个不同的点M 、N ,且满足|AM|=|AN|.求直线l 的方程.22.已知函数R a x ax x x f ∈-+=,ln )(2(Ⅰ)当1=a 时,求)(x f 的单调区间;(Ⅱ)当函数)(x f 在[1,2]上是减函数,求实数a 的取值范围;(Ⅲ)令2)()(x x f x g -=,是否存在实数a ,当x ∈(0,e](e 是自然对数的底数时,函数)(x g 的最小值是3,若存在,求出a 的值;若不存在,说明理由.四、 -2 14.8115.2 16. 跑步 16.解:由(4)可知,乙参加了铅球比赛,由(2)可知乙不是最高的,所以三人中乙身高居中;再由(1)可知,甲是最矮的,参加了跳远,所以丙最高,参加了跑步比赛. 故答案为跑步.17.解:(1)由正弦定理可得sinA=2sinAcosAcosB ﹣2sinBsin 2A …(2分)=2sinA (cosAcosB ﹣sinBsinA )=2sinAcos (A+B )=﹣2sinAcosC . 所以cosC=﹣,故C=.…(5分)(2)由△ABC 的面积为得ab=15,…(8分)由余弦定理得a 2+b 2+ab=c 2,又c=15﹣(a+b ), 解得c=7.…(10分)18.解:(Ⅰ)证明:作FM ∥CD 交PC 于M ,连接ME . … ∵点F 为PD 的中点,∴,又,∴,∴四边形AEMF 为平行四边形,∴AF ∥EM ,…∵AF ⊄平面PEC ,EM ⊂平面PEC ,…∴直线AF ∥平面PEC . … (Ⅱ)连接ED ,在△ADE 中,AD=1,,∠DAE=60°,∴ED 2=AD 2+AE 2﹣2AD ×AE ×cos60°=,∴,∴AE 2+ED 2=AD 2,∴ED ⊥AB . PD ⊥平面ABCD ,AB ⊂平面ABCD ,∴PD ⊥AB ,PD ∩ED=D ,PD ⊂平面PEF ,ED ⊂平面PEF ,…∴AB ⊥平面PEF .,1 2 3 4 5 6 7 8 9 10 11 12 D ACDCCCBBABB∴三棱锥P ﹣BEF 的体积:V P ﹣BEF =V B ﹣PEF =…==.19.解:(Ⅰ)根据直方图知组距=10,由(2a+3a+6a+7a+2a )×10=1,解得a=0.005. (Ⅱ)成绩落在[50,60)中的学生人数为2×0.005×10×20=2, 成绩落在[60,70)中的学生人数为3×0.005×10×20=3.(Ⅲ)记成绩落在[50,60)中的2人为A ,B ,成绩落在[60,70)中的3人为C ,D ,E ,则成绩在[50,70)的学生任选2人的基本事件有AB ,AC ,AD ,AE ,BC ,BD ,BE ,CD ,CE ,DE 共10个,其中2人的成绩都在[60,70)中的基本事件有CD ,CE ,DE 共3个, 故所求概率为P=.20.(1)12n n a n --=;(2)32342(1)(2)n n n +-++.(2)由(1)可得111111()(22)(2)22n n n b n a n n n n -===--+++ 111111111[()()()()213243546n S =-+-+-+-+L11111111()()()()]312112n n n n n n n n +-+-+-+-----++ 1111323(1)221242(1)(2)n n n n n +=+--=-++++ 21.解:(I )由题意可得e==,+=1,且a 2﹣b 2=c 2, 解得a=,b=1,即有椭圆的方程为+y 2=1;(Ⅱ)若直线的斜率不存在,M ,N 为椭圆的上下顶点, 即有|AM|=2,|AN|=1,不满足题设条件; 设直线l :y=kx+(k ≠0),与椭圆方程+y 2=1联立,消去y ,可得(1+3k 2)x 2+9kx+=0,判别式为81k 2﹣4(1+3k 2)•>0,化简可得k 2>,①设M (x 1,y 1),N (x 2,y 2),可得x 1+x 2=﹣,y 1+y 2=k (x 1+x 2)+3=3﹣=,由|AM|=|AN|,A (0,﹣1),可得=,整理可得,x 1+x 2+(y 1+y 2+2)()=0,(y 1≠y 2)即为﹣+(+2)•k=0, 可得k 2=,即k=±,代入①成立. 故直线l 的方程为y=±x+.22.解:(Ⅰ)a=1时,f (x )=x 2+x ﹣lnx ,x >0∴f′(x)=,令f′(x)>0,解得:x>,x<﹣1(舍),令f′(x)<0,解得:0<x<,∴f(x)在(0,)递减,在(,+∞)递增;(Ⅱ)∵f′(x)=,当函数f(x)在[1,2]上是减函数时,得f′(1)=2+a﹣1≤0①,f′(2)=8+2a﹣1≤0②,由①②得:a≤﹣,∴a的范围是(﹣∞,﹣];(Ⅲ)∵f(x)=x2+ax﹣lnx,∴g(x)=f(x)﹣x2=ax﹣lnx,x∈(0,e].∴g′(x)=a﹣=(0<x≤e),①当a≤0时,g(x)在(0,e]上单调递减,g(x)min=g(e)=ae﹣1=3,解得a=(舍去);②当0<<e时,g(x)在(0,)上单调递减,在(,e]上单调递增,∴g(x)min=g()=1+lna=3,解得a=e2,满足条件;③当≥e时,g(x)在(0,e]上单调递减,g(x)min=g(e)=ae﹣1=3,解得a=(舍去);综上,存在实数a=e2,使得当x∈(0,e]时,g(x)有最小值3.。
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高三强化训练一 第Ⅰ卷 第一部分 阅读理解 (共两节,满分40分)
第一节(共15小题;每小题2分,满分30分) 阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
A When I was 12, I got a part-time job on a dairy farm, miling cows. We miled 65 cows twice a day. One day, I complained to my father about having to mil those cows, saying it was tiring. He said, “you now, boy, to wor is a blessing.” I looed at the men who’d wored harder. I had a feeling I had been told something really important, but it too many years before it sun in. Bac then, going to college was a rare privilege. My father told me if I’d piced something to study that I lied doing, I’d always loo forward to my wor. But he also added, even having a job you hate is better than not having a job at all. I wanted to be a farmer, but I joined a military program to help pay for college. And what started out as an obligation to the Army became a way of life that I stayed committed to for 37 years. In the late 1980s, during a visit to Bangladesh, I saw a woman with her baby on her bac, breaing brics with a hammer. I ased a local officer why they weren’t using a machine to mae the wor easier. He told me a machine would put that lady out of wor. And as bad as that woman’s job was, it was enough to eep a small family alive. It reminded me of my father’s words to wor is a blessing. After seeing a lot of people lie that woman in Bangladesh, I’ve come to believe that people without jobs are not free. They’re victims of crime, poor health, and depression. People who have jobs can have a home, send their ids to school, develop a sense of pride, contribute to the good of the community and even help others. When we can wor, we are free. We are blessed. 1. Which can be the best title of the tet? A. To Wor Is a Blessing B. My Chosen Way of Life C. Why Should I Wor D. Inspiration from a Woman 2. What can we learn from the first paragraph? A. The writer’s parents were rich farmers. B. The writer admired his father’s job. C. The writer didn’t enjoy his part-time job. D. The writer disagreed with his father. 3. The writer joined a military program because _______. A. his parents forced him to do so B. he intended to find a lifetime job C. he could travel abroad with the army D. he couldn’t afford his college education 4. According to Paragraph 3, machines were not used because _______. A. machines were too epensive B. people needed jobs to live C. women could do the wor better D. machines were hard to operate
B Which tablet computer should YOU be buying? They are this year’s must… and there’s a style to suit everyone.
Best for Young Children LeapPad Eplorer 2, £68 Aimed at children between three and nine (though a nine-year-old might find it a little simple), it comes in pin or blue and with five built-in education games (you can buy more). Besides, the LeapPad does not allow access to the Internet — so it is impossible for your child to stumble across anything inappropriate. Pros The education games are well-designed and the built-in video camera is a fun way to play at being a film director. Cons Some of the games are shocingly epensive. And the power adaptor is not included. Best for Teenagers iPad 4th generation, £399~£659 The iPad is still the maret leader, and for good reason. If the teenager in your house enjoys playing computer games, the latest offering from Apple is the one to choose. Pros No other tablets can compete with the near one million “app” (the name Apple created for specially-designed downloadable programs) available for the iPad. Simple to use, even for those who usually struggle with technology. Cons Considerable more epensive than most competitors.
Best for Woring Parents Microsoft Surface, £399~£559 Tablets are brilliant for leisure — but what if you want to do a bit of wor? No tablet can yet compete with a full-sie laptop computer, but this is the only tablet that allows you to use Microsoft Word, Ecel and PowerPoint (they are all pre-installed and included in the price) and you can buy a pretty lovely mini-eyboard for typing letters and emails, which also doubles up as the cover. Pros The Surface is good for watching movies — a bonus when stuc in the airport on a business trip — and Best for Booworms Amaon indle Paperwhite, £109 Nearly all tablets let you download boos. It’s a great way to tae a mountainous pile of hardbacs on holiday without stuffing your suitcase. But most tablets have a shiny screen — which can be very distracting when you’re trying to read. The Paperwhite is different its matt screen and crisp blac lettering imitate the loo of words on paper brilliantly. And yet you can still read the words in the dar. Pros Easy on the eye, ecellent battery life, 180,000 free boos (if you subscribe to the Amaon Prime customer loyalty