哈尔滨市第六中学2016届高三第一次模拟考1

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黑龙江省哈尔滨市第六中学2020届高三上学期第一次调研考试(9月)物理试题 含答案

黑龙江省哈尔滨市第六中学2020届高三上学期第一次调研考试(9月)物理试题 含答案

A BCθOv 0xy1 2 3斜槽 水平板哈六中2019-2020学年度上学期 高三学年第一次调研考试 物理 试卷一、选择题:本题共15小题,每小题4分,共60分。

在每小题给出的四个选项中,第1~10题只有一项符合题目要求,第11~15题有多项符合题目要求。

全部选对的得4分,选对但不全的得2分,有选错的得0分。

1.如图,一质量为M 的光滑大圆环,用一细轻杆固定在竖直平面内。

套在大环上质量为m 的小环(可视为质点),从大环的最高处由静止滑下。

重力加速度大小为g ,当小环滑到大环的最低点时,大环对轻杆拉力的大小为( ) A .(M +2m )g B .(M +3m )g C .(M +4m )g D .(M +5m )g2.如图,在竖直平面内有一半圆形轨道,圆心为O 。

一小球(可视为质点)从与圆心等高的圆形轨道上的A 点以速度v 0水平向右抛出,落于轨道上的C 点。

已知OC 连线与OA 的夹角为θ,重力加速度为g ,则小球从A 运动到C 的时间为( )A .g 02v cot 2θB .g 0v cot 2θC .g 0v tan 2θD .g 02v tan 2θ3.研究平抛运动的实验装置示意图如图。

小球每次都从斜槽的同一位置无初速释放,并从斜槽末端水平飞出。

改变水平板的高度,即改变了小球在板上落点的位置,从而可描绘出小球的运动轨迹。

某同学设想小球先后三次做平抛运动,将水平板依次放在图中1、2、3位置,且1与2的间距等于2与3的间距。

若三次实验中,小球从抛出点到落点的水平位移依次为x 1、x 2、x 3,机械能的变化量依次为△E 1、△E 2、△E 3,忽略空气阻力的影响,以下分析正确的是( )A .x 2-x 1=x 3-x 2,△E 1=△E 2=△E 3B .x 2-x 1>x 3-x 2,△E 1=△E 2=△E 3C .x 2-x 1>x 3-x 2,△E 1<△E 2<△E 3D .x 2-x 1<x 3-x 2,△E 1<△E 2<△E 34.人造地球卫星因受高空稀薄空气的阻力作用,绕地球运转的轨道会慢慢改变,设每次测量中卫星的运动可近似看作圆周运动。

黑龙江省哈尔滨市第六中学2025届高三(最后冲刺)数学试卷含解析

黑龙江省哈尔滨市第六中学2025届高三(最后冲刺)数学试卷含解析

黑龙江省哈尔滨市第六中学2025届高三(最后冲刺)数学试卷注意事项:1.答题前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在条形码区域内。

2.答题时请按要求用笔。

3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试卷上答题无效。

4.作图可先使用铅笔画出,确定后必须用黑色字迹的签字笔描黑。

5.保持卡面清洁,不要折暴、不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。

一、选择题:本题共12小题,每小题5分,共60分。

在每小题给出的四个选项中,只有一项是符合题目要求的。

1.若函数()ln f x x =满足()()f a f b =,且0a b <<,则224442a b a b+-+的最小值是( )A .0B .1C .32D .222.已知函数()ln f x x =,()()23g x m x n =++,若()0,x ∀∈+∞总有()()f x g x ≤恒成立.记()23m n +的最小值为(),F m n ,则(),F m n 的最大值为( )A .1B .1eC .21eD .31e 3.对某两名高三学生在连续9次数学测试中的成绩(单位:分)进行统计得到折线图,下面是关于这两位同学的数学成绩分析.①甲同学的成绩折线图具有较好的对称性,故平均成绩为130分; ②根据甲同学成绩折线图提供的数据进行统计,估计该同学平均成绩在区间内;③乙同学的数学成绩与测试次号具有比较明显的线性相关性,且为正相关; ④乙同学连续九次测验成绩每一次均有明显进步. 其中正确的个数为( ) A .B .C .D .4.某几何体的三视图如右图所示,则该几何体的外接球表面积为( )A .12πB .16πC .24πD .48π5.已知双曲线221x y a+=的一条渐近线倾斜角为56π,则a =( )A .3B .3-C .33-D .3-6.已知实数x ,y 满足约束条件202201x y x y x +-≤⎧⎪--≤⎨⎪≥⎩,则目标函数21y z x -=+的最小值为A .23-B .54-C .43-D .12-7.我国古代数学著作《九章算术》中有如下问题:“今有器中米,不知其数,前人取半,中人三分取一,后人四分取一,余米一斗五升(注:一斗为十升).问,米几何?”下图是解决该问题的程序框图,执行该程序框图,若输出的S =15(单位:升),则输入的k 的值为( ) A .45B .60C .75D .1008.函数的图象可能是下列哪一个?( )A .B .C .D .9.已知命题2:21,:560p x m q x x -<++<,且p 是q 的必要不充分条件,则实数m 的取值范围为( )A .12m >B .12m ≥C .1mD .m 1≥10.已知三棱锥P ABC -的四个顶点都在球O 的球面上,PA ⊥平面ABC ,ABC ∆是边长为3,若球O 的表面积为20π,则直线PC 与平面PAB 所成角的正切值为( ) A .34B 7C 377D 7 11.要得到函数2sin 26y x π⎛⎫=+⎪⎝⎭的图象,只需将函数2cos2y x =的图象 A .向左平移3π个单位长度 B .向右平移3π个单位长度C .向左平移6π个单位长度 D .向右平移6π个单位长度 12.若集合}{}{2,33A x y x B x x ==-=-≤≤,则A B =( )A .[]3,2-B .{}23x x ≤≤ C .()2,3D .{}32x x -≤<二、填空题:本题共4小题,每小题5分,共20分。

黑龙江省哈六中2010届高三一模(英语)

黑龙江省哈六中2010届高三一模(英语)

哈尔滨市第六中学校2010届第一次模拟考试英语本试卷分第一卷(选择题)和第二卷(非选择题)两部分。

共150分。

考试结束后,将本试卷和答题卡一并收回。

第一卷注意事项:1. 答题前,考生先将自己的姓名,准考证号码填写清楚,将条形码准确粘贴在条形码区域内。

2. 选择题必须使用2B铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整,笔迹清楚。

3. 请按照题号顺序在各题目的答题区域内作答,超出答题区域书写答案无效;在草稿纸、试题卷上答题无效。

4. 保持卡面清洁,不要折叠、不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。

第一部分:听力(共两节,满分30分)做题时,先将答案划在试卷上。

录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。

第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。

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

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

例:How much is the shirt?A.19.15B.9.15C.9.18答案是B。

1. What are they talking about?A. Games.B. The T-shirt.C. Sports.2. How did Margaret travel?A. By air.B. By train.C. By ship.3. Who would like to go to college?A. The man’s wife.B. The man’s daughter.C. The man’s sister.4. What did the man mean?A. He wanted a quiet place.B. He wanted to sit near the door.C. He wanted a table near the window.5. Which of the following places is NOT mentioned?A. America.B. Canada.C. Moscow.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。

黑龙江省哈尔滨市第六中学2022-2023学年英语高三第一学期期末学业质量监测模拟试题含解析

黑龙江省哈尔滨市第六中学2022-2023学年英语高三第一学期期末学业质量监测模拟试题含解析

2022-2023高三上英语期末模拟试卷请考生注意:1.请用2B铅笔将选择题答案涂填在答题纸相应位置上,请用0.5毫米及以上黑色字迹的钢笔或签字笔将主观题的答案写在答题纸相应的答题区内。

写在试题卷、草稿纸上均无效。

2.答题前,认真阅读答题纸上的《注意事项》,按规定答题。

第一部分(共20小题,每小题1.5分,满分30分)1.It is obvious that John is unhappy. _________, it comes as no surprise that she has decided to change her job.A.However B.Otherwise C.Moreover D.Therefore2.he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy.A.for; in favor of B.after; in honor ofC.by; in memory of D.as; in praise of3.They were abroad during the months when we were carrying out the investigation, or they __________to our help.A.would have come B.could comeC.have come D.had come4.I have often thought it would be a blessing if each human being _______ blind and deaf for a few days at some time in his life.A.has been stricken B.were strickenC.had been D.would be5.Mary liked to look back on her high—school days,she thought were the happiest in her life.A.that B.what C.which D.when6.If you, the special one in the world, want to show your ______ personality, this T-shirt is exactly what you are looking for.A.calm B.unique C.straight D.constant7.If the traffic so heavy, I could have been back by 6 o’clock.A.hadn’t been B.wasn’tC.couldn’t be D.hasn’t been8.Our English teacher , having explained to us how to design a project, allowed us a whole week’s preparation and then ______the class.A.to dismiss B.dismissedC.dismissing D.having dismissed9.Although she did not know Boston well, she made her way ________ to the HomeCircle Building.A.easy enough B.enough easyC.easily enough D.enough easily10.— What about the protection of these new machines?—Let’s keep the surface ________ dust by putting a cover over them.A.far from B.apart fromC.free from D.away from11.Thanks to the efforts in environmental protection, the wetland has been _____ to its original appearance.A.restored B.deliveredC.transferred D.drafted12.The news was a terrible blow to her, but she ______the shock soon.A.got out B.got over C.got off D.got through13.The senior teacher always goes swimming and does push-ups to stay ________. A.in place B.in orderC.in shape D.in fashion14.The meeting planned next Monday is very important.A.to be held B.heldC.being held D.holding15.Up till now, there has been no scientific evidence about ________ caused the death of dinosaurs.A.what is it that B.what it was that C.it was what D.what is it16.Thanks to her determination and perseverance on the piano lesson, she has a ______ grasp of the subject.A.comprehensive B.confidentialC.conservative D.compulsory17.Peterson, a great archaeologist, said: “Archaeologists have been extremely patient because we were led to believe that the ministry was ________ this problem, but we feel that we can't wait any longer.”A.looking out B.bringing out C.carrying out D.sorting out18.—Why are you so upset?—I had my computer repaired yesterday, but it ________ work again.A.doesn’t B.didn’tC.won’t D.wouldn’t19.A heavy sandstorm is going to envelop our city. It is unwise to have yourcar .A.wash B.washedC.washing D.to wash20.---There are probably aliens living here on earth.---_____! I can’t believe you said that.A.Come on B.Forget itC.Go ahead D.Allow me第二部分阅读理解(满分40分)阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。

2021年黑龙江哈尔滨第六中学高三下适应考1英语试卷

2021年黑龙江哈尔滨第六中学高三下适应考1英语试卷

2021年黑龙江哈尔滨第六中学高三下适应考1英语试卷学校:___________姓名:___________班级:___________考号:___________一、阅读选择I remember the first time that I was extremely happy. I was about 8 years old when for the first time, there was a computer in the classroom. I remember that my teacher allowed each student to take turns to play various educational games on the computer. One day, I found the source code(编码)for one of these games. Without knowing or being taught any programming language, I was able to figure out some of the BASIC code. I just gave myself aninfinitenumber of lives in the game, so I could continue playing it forever. This was also my first introduction to algebra, and I didn't even know it at the time. This was a decisive moment in my life. I was quite excited because of what I was learning and what I was able to do. As a result, I was enthusiastic for the rest of my life about self learning and computers, and I was quite happy doing them too.I've noticed that people who are truly content with life are enthusiastic about what they do. This enthusiasm, along with good health, is the key to being happy. It also leads toself-confidence and content in life too. It may also lead to success, wealth, and achievements. Success, wealth, or achievements can also bring some people happiness, yet I know plenty of rich people who are unhappy. I know many people with successful businesses that are not happy with what they are doing. I know people who continuously buy themselves new toys, such as cars, computers, and televisions, yet never seem content for too long. Please remember, happiness is the journey of life, not the destination.1.What can we know from Paragraph 1?A.The author has a great talent for algebra.B.Creative thinking is necessary for every child.C.The BASIC code of the computer is not difficult.D.The author's experience in his childhood changed his life.2.The underlined word "infinite" means __________.A.big B.limitlessC.normal D.small3.The author wants to tell us through his experience in the school that ________. A.interest is the best teacherB.children are the hope of the futureC.young people are fearlessD.where there’s a will, there’s a way4.We can infer from the last paragraph that ________.A.people who are rich and successful in career generally feel unhappyB.wealth can’t bring people any happiness and comfortC.one will feel unhappy once he has gained all the things that he wantsD.being enthusiastic about what you do is more important than wealthMyth: Skipping meals helps you lose weight fast.Truth: There’s no truth in this advice. Not only will you lose weight by starving yourself, but according to Carol Ann Rinzler, this may actually cause you to gain weight. Rinzler reasons that missing a meal causes your metabolism(新陈代谢) to slow down so that you burn food more slowly. This only makes you feel hungrier and by the time you finally do reach the table you will probably eat more food. Strange as it may seem, studies show that eating several small meals and snacks throughout the day is a more healthy way to lose pounds.Myth: If you swallow (吞下) gum (口香糖),it will stay inside your stomach for seven years. Truth: Actually, it takes just a few days for gum to make its exit---not seven years, says Nei Izenberg, M. D., editor of Kids Health Organization. But because gum is made of the same thing as rubber, it cannot be fully digested (消化) in your stomach--- so if you gum up the works on a regular (经常的) basis, you might find yourself in a sticky situation.Myth: The best way to stop a nosebleed is to lift your head back.Truth: Now that’s bad advice. Bloody noses are caused by broken blood vessels (血管), so while lifting your head back might stop the fluid from rushing out of your nose, it won’t stop the bleeding; you’ll just end up swallowing lots of blood. Your best bet? “Rest quietly. Don’t poke or pick, and the blood will naturally clot (凝结) within a minute or two”. Suggests Dr. Izenberg.Myth: Cutting your hair will make it grow long faster.Truth: That’s not true. “Your hair isn’t like a lawn or a rose bush, where cutting can stimulate (刺激) fresh growth,” says Phillip Kingsley. The length of your hair is genetically ( 遗传地) determined. When it reaches a certain length, it stops growing. When you clear up the dead split ends, this make your hair look healthier, but not necessarilylonger.5.According to Carol Ann Rinzler, skipping meals will __________.A.help you lose weight fastB.help you lose weight slowlyC.cause you to become fatterD.make you burning food more quickly6.Which of the following statements is NOT true according to the passage?A.Gum cannot be fully digested in the stomachB.Gum can leave your stomach after you swallow is a few days laterC.If you often swallow gum, you might find yourself in a sticky situationD.Gum can stay inside your stomach for seven years if you swallow it7.The length of your hair is determined by ________A.clearing up the dead split endsB.your geneC.cutting it oftenD.the food you eatParents are fuelling bad behavior among their children by attempting to "buy" their love with expensive gifts nowadays.Over recent decades we seem to have created a "must have" culture among our young people. Many mothers and fathers believe they are "failing as parents" if they are unable to ensure that their children have the latest toy, electronic devices (the lap-top, cellphones, Game Boy, etc.) along with their friends. In many cases, families also feel pressured to enroll (使加入) children in "'every interest club or after-school activity that is available" to fill up their time like most of the other children.But experts warned that the move might affect "precious family time" negatively. Graham Gorton, chairman of the Independent Schools Association, said that parents spent too much time filling their children's lives, which had a series of negative effects on "the very precious family time that exists"."It seems that those times when a whole weekend without planned work was seen as a luxury (奢侈) and a perfect opportunity to spend time together and share those valuable moments of childhood are long gone," Mr. Gorton said. "As a child I only once said that phrase that parents feared 'I'm bored'. Immediately my mother took action and produced a list of jobs andthen insisted that I complete every one of them. Though l didn't think cleaning all the floors could really get rid of my boredom, I enjoyed the feeling of staying at home with my mother and brothers."Earlier this year, some researchers suggested that relatively wealthy parents were sometimes guilty of failing to te ach basic social skills to children. "Often, it’s the rich middle classes that buy off their children through the computer and the TV. That then sets them apart from their family, and then the parents are surprised when their child isn’ t coming to school."8.The second paragraph mainly tells us that ________.A.today’s children have little time to playB.today’s children depend on electronic tools too muchC.today’s parents feel pressured by the "'must have" cultureD.being qualified parents becomes harder for today's young people9.What does the "must have" phenomenon refer to based on the passage?A.That children must have what other children have.B.That children must have proper pressure to work hard.C.That children must have special skills to ensure a better future.D.That parents must have patience to know their children better.10.Which of the following is the best advice you could give to parents based on Gorton’s statement?A.Plan fewer activities for their children to improve family time.B.Buy their children fewer things that they are fond of.C.Give their children more housework to do.D.Leave their children alone when the kids feel bored.11.From the passage we can infer that ________.A.wealthy parents don’t like teaching basic social skills to childrenB.parents should be much more strict with their children at homeC.children should not be brought up in a wealthy and pleasant environmentD.only satisfying children’s material needs is not a good way of parentingThere is some unwelcome news for students preparing for exams and officers putting in long hours-----you don't need the break as much as you may think that makes you feel less tired. Scientists have long assumed that willpower (意志力) is a limited resource, which is why youfeel the need to have a rest, have a snack and come back to a task when you're feeling better. They argued that the only way to restore willpower was by rest, food or entertainment.But psychologists have challenged this theory, saying weak willpower is all in your head. They found that people's beliefs in willpower determine how long and how well they'll be able to work on a tough mental exercise. "If you think of willpower as something that's limited, you're more likely to be tired when you perform a difficult task," said Prof.Veronika Job. "'But if you think of willpower as something that is not easily used up, you can go on and on."The researchers designed four experiments to test students'-beliefs in willpower. After a tiring task, those, who believed or were led to believe that willpower is a limited resource, performed worse on standard concentration tests than those who thought of willpower as something they had more control over. They also found that leading up to final exam week, students who believed the limited resource theory ate junk food 24 percent more often than those who believed they had more control in resisting temptation (诱惑).Mr. Job said. "The theory that willpower is a limited resource is interesting, but it has had unintended consequences. Students who may already have trouble studying are being told that their power of concentration is limited, and they need to take frequent breaks. But a belief in willpower as a non-limited resource makes people stronger in their ability to work through challenges.'"The findings could help people who are battling temptation. Willpower isn't driven by a biologically based process as much as we used to think. The belief in it is what influences your behavior.12.The theory that willpower is limited supports that _________.A.people must eat snacks when they feel tiredB.people do need a break to restore their willpowerC.there’s no way to strengthen people’s willpowerD.weak willpower doesn’t affect people’s life much13.What have the scientists long believed regarding willpower?A.It is in the charge of people.B.It is a limited resource.C.There is no way to restore willpower.D.It doesn’t easily run out.14.Which of the following best helps the students to prepare better for their exams? A.Push themselves even if they want to take a break.B.Don’t eat fast food while studying.C.Remind themselves willpower is not limited.D.Stay in a comfortable and quiet place.15.What’s the best title for the passage?A.A new theory about willpowerB.How to build strong willpowerC.The great influence of willpowerD.Willpower doesn’t last long二、七选五Hollywood movies are regularly filled with sex and violence. They can be exciting films but sometimes all you want is a 1ittle 1ight-hearted entertainment.Have you heard of Bollywood? All singing, all dancing and unrealistic, it is the perfect alternative to normal Hollywood movies. Bollywood is the Indian film industry, based in Mumbai, formerly known as Bombay. 16.Yet Bollywood is the largest producer of films in the world. This year the Indian Filmgare Awards, Bollywood’s Oscars, turn 50 years old.The typical Bollywood movie usually has the following ingredients(组成成分): a cup of romance, a tea-spoon of comedy, a dash of international sight-seeing, served with a huge slice of singing and dancing. There will also be one brave hero, one beautiful heroine and one bad guy. 17..Bollywood films are full of ideal things and free of daily worries. 18.The actors change clothes and locations within a single song. B ut the ạudience don't mind. To Indian movie lovers, especially the poor, such films are a gateway to heaven and the stars are their gods. The films take them to a magical world away from their everyday troubles. The films tell them the impossible is possible and that true 1ove conquers all.19.Behind the beautiful scenes, Bollywọod still emphasizes(重视) traditional family values. In most films, if two lovers want to break an arranged marriage, they can't just run away. They must win over their parents.Bollywood is a decent(正派的) refreshing replacement for those over-stimulating(评价过高的) Hollywood films. 20.They will take you to a brighter, cheerier and more colorful worldwhere it's still cool to dance around a tree and sing a love song.A.Bollywood has gradually won its reputation(名声) on the world stage.B.There is never any mention of politics, poverty or war.C.Most Chinese school kids have probably never seen an Indian film.D.Bollywood films are mostly comic romances with 1ight-hearted incidenta1(附带的) music.E.Bọllywọọd pays great attention to traditional values.F.The result is a fun-filled musical.G.So if you're tired of all that Hollywood actions, check out the following Bollywoọd films.三、完形填空In our whole life, we will come across different kinds of people and things.21 22 , our views of the world, life and value have been changing allthe time. To be honest, one of my English teachers has made a great 23 24on me.Although she was short, old and ugly, she was talented, 25 26 and passionate(热诚的).Thus, we called her “a crazy stone”. She didn't mind it27 28 ; instead, she seemed to love her 29 30 very much. In addition, she was so_ 31 with students that she knew how to raiseour____and get along well with us. Therefore, we studied English well and 32 33 her.To be honest, I am fond of listening to____told by others in my daily life. MaybeI have heard so many that it is 34 __for me to laugh. But she was a(n)___.Her jokes were always so funny, for she always led you to the scenes of themand____an interesting atmosphere. Although I___the university ten years ago,I still remember several jokes, one of which I would like to____with you.Before having an English lesson, there was a handsome boy who made aself­introduction. He said that he was able to do____and finally made a conclusion that he was rather untalented. After hearing that,Stone____the teacher's desk and said an old saying: “Innocence is the virtue(美德) for____”. Hearing this we all burst into laughter.Although I met several good teachers when I was in the high school and duringmy college, “a crazy stone” is the best teacher in my____. It was she thatmade me get____in English. It was she that educated me how to fight for success and____difficulties.21.A. But B. Although C. Because D. Therefore 22.A. expression B. promise C. influence D. reputation 23.A. humorous B. serious C. active D. bright24.A. after all B. at all C. above all D. in all25.A. description B. occupation C. nickname D. students 26.A. strict B. friendly C. popular D. familiar 27.A. force B. enthusiasm C. inspiration D. power28.A. respected B. agreed C. pushed D. thanked29.A. lessons B. experiences C. tales D. jokes30.A. impossible B. easy C. difficult D. likely31.A. model B. teacher C. laugher D. exception 32.A. enjoyed B. came C. created D. reduce33.A. lived in B. came into C. left for D. graduated from 34. A. spend B. communicate C. share D. talked35.A. anything B. nothing C. everything D. something 36.A. stood on B. walked to C. broke down D. pushed away 37.A. men B. students C. women D. teachers38.A. heart B. city C. school D. world39.A. hurt B. down C. interested D. rewarded40.A. ignore B. overcome C. escape D. face四、用单词的适当形式完成短文It was a city in Hubei Province. On International Children's Day, some orphans (孤儿) from the Wuhan Welfare Institute for Children41.(take) to the park. An elderly westerner was with them. The children were eager to tell him everything that was going on. They held him by the hand and never hesitated to call42.Grandpa. This man was Professor William Dorrity, from Florida,USA.In 2003,43.Professor Dorrity and his wife retired, they came to Wuhan and started to work as volunteers at the Welfare Institute.The Dorritys have been working hard44.(improve) the conditions at the Welfare Institute since they came. They often take children on day trips,45.(bring) along with them all kinds offood for the kids to enjoy. They recently bought audiphones for four orphans46.hearing problems and small tape recorders for three blind children. They also bought a wheelchair for ten-year-old Tan Jun,47.suffers from a brain problem. With the48.(arrive) of spring, the Dorritys took the children for49.outing. “We love China and we love children,” Dorrity said, “50.we are happy to do this.”五、短文改错51.Dear Sir,Last night I got caught in the heavy rain on the way home. As the result, I got a bad cold with a headache. I felt very tiring. My mother took me see the doctor. After the examination, the doctor told me to make it easy. He said it was nothing seriously. He also told me to have a good rest for a couple of days, take the medicines on time and drunk more boiled water. So I have to ask you a three-day leave. After I recover, I would try to make up for the missing lessons. If there are anything I do not understand, could I turn to you for help?Mike六、提纲类作文52.请仔细观察图片,描述图片内容,并以生活中发生的一件事情说明图片所说明的内涵。

黑龙江省哈六中2009届高三第一次模拟考试(理综)

黑龙江省哈六中2009届高三第一次模拟考试(理综)

a b CO 2a b 光照光 合速率 光 合 速率 哈尔滨市第六中学2009届高三第一次模拟考试理科综合试卷本试卷分第I 卷(选择题)和第II 卷(非选择题)两部分。

满分300分。

考试时间150分钟第I 卷 (选择题 共126分)一、选择题(本题包括13小题,每小题6分。

每小题只有一个选项符合题意)1、下面甲、乙两图分别表示植物的光合速率与光照强度、CO 2含量的关系。

对两图而言,下列叙述正确的是:甲 乙A .若土壤中N 、P 、Mg 含量持续下降,不可能导致两图中a,b 点改变B .若环境温度发生变化,会导致两图中a,b 点位置改变C .若图中表示的是阳生植物,则对阴生植物而言甲图中a 点应向右移动D .若图中表示的是C 3植物,则对C 4植物而言乙图中a 点应向右移动2、下列关于硝化细菌的说法正确的是A .线粒体是硝化细菌进行有氧呼吸的主要场所B .叶绿体是硝化细菌进行同化作用的主要场所C .硝化细菌可以将氨转变为亚硝酸盐和硝酸盐D .硝化细菌的细胞质中的遗传物质是RNA3、下列关于抗原的叙述,正确的是A.人体内的细胞不可能成为抗原B.抗原侵入人体后的反应机理与过敏原相同C.能够特异性中和细菌外毒素的物质是一种抗原D.一种抗原只能与相应的抗体或效应T 细胞发生特异性结合4、在培养金黄色葡萄球菌时污染了青霉菌,青霉菌菌落附近一圈区域内金黄色葡萄球菌不能生存。

下列相关叙述错误的是A .青霉素与金黄色葡萄球菌之间为竞争关系B .取少量处于对数期的金黄色葡萄球菌,接种到适合其生长但成分不同的另一培养基中,其诱导酶种类可能发生改变C .青霉素是青霉菌的次级代谢产物D .若青霉菌菌落附近仍存在一个金黄色葡萄球菌菌落,根本原因是金黄色葡萄球菌拟核DNA 发生了抗青霉素的基因突变5、下列关于生态因素对生物影响的说法错误的是A .影响鹿、山羊等动物繁殖的关键因素是温度B .温暖地区的阔叶林多,而寒冷地区的针叶林多C .水分过多或过少都会影响陆生生物的生长和发育D .生物因素和非生物因素对生物的影响具有综合性6.下列盛放试剂的方法正确的是( )A .氢氟酸或浓硝酸存放在带橡皮塞的棕色玻璃瓶中B .汽油或煤油存放在带橡皮塞的棕色玻璃瓶中C .碳酸钠溶液或氢氧化钙溶液存放在配有磨口塞的棕色玻璃瓶中D .氯水或硝酸银溶液存放在配有磨口塞的棕色玻璃瓶中7.0.01 mol ·L -1的某一元弱酸溶液 pH =4,则它的电离程度为( )A 1%B 2%C 5%D 10% 8.下列反应的产物中,有的有同分异构体,有的没有同分异构体,其中一定不存在...同分异构体的反应是( )A .异戊二烯(CH 2 C —CH CH 2)与等物质的量的Br 2发生加成反应B .2—氯丁烷(CH 3CH 2CHCH 3)与NaOH 乙醇溶液共热发生消去HCl 分子的反应C .甲苯在一定条件下发生硝化生成一硝基甲苯的反应D .邻羟基苯甲酸与NaHCO 3溶液反应9.下列各组物质中,仅用水及物质间相互反应不能一一区别的一组是( )A .Na 2O 2 Al 2(SO 4)3 MgCl 2 K 2CO 3B .BaCl 2 Na 2SO 4 (NH 4)2SO 4 KOHC .AgNO 3 NaCl KCl CuCl 2D .Fe 2(SO 4)3 K 2CO 3 KHSO 4 NH 4Cl10.将 4 mol A 气体和 2 mol B 气体在 2 L 的容器中混合并在一定条件下发生如下反应2A (气)+B (气)2C (气)若经 2 s (秒)后测得 C 的浓度为 0.6 mol·L -1 ,现有下列几种说法:① 用物质 A 表示的反应的平均速率为 0.3 mol·L -1·s -1② 用物质 B 表示的反应的平均速率为 0.6 mol·L -1·s -1 ③2 s 时物质 A 的转化率为70%④ 2 s 时物质 B 的浓度为 0.7 mol·L -1CH 3|| Cl其中正确的是( )A .①③ B. ①④ C. ②③ D. ③④11.能正确表示下列化学反应的离子方程式是( )A .用碳酸钠溶液吸收少量二氧化硫:2CO 32-+SO 2+H 2O =2HCO 3-+SO 32-B .金属铝溶于盐酸中:Al +2H +=Al 3++H 2↑C .硫化钠溶于水中:S 2-+2H 2O =H 2S↑+2OH -D .碳酸镁溶于硝酸中:CO 32-+2H +=H 2O +CO 2↑12.用惰性电极实现电解,下列说法正确的是( )A .电解稀硫酸溶液,实质上是电解水,故溶液pH 不变B .电解稀氢氧化钠溶液,要消耗OH -,故溶液pH 减小C .电解硫酸钠溶液,在阴极上和阳极上析出产物的物质的量之比为1:2D .电解氯化铜溶液,在阴极上和阳极上析出产物的物质的量之比为1:113.将aL H 2和Cl 2的混合气体点燃,充分反应后,将混合气体通入含bmol NaOH 的热溶液中,气体恰好被完全吸收,NaOH 无剩余,测得反应后溶液中含Cl —、ClO —、ClO 3—且三者物质的量之比为8∶1∶1,则原混合气体中H 2物质的量为( )A .a/2 molB .(a/22.4—b )molC .(a/22.4—b/2)molD . b/2 mol二、选择题(本题包括8小题。

黑龙江省哈尔滨市第六中学高三上学期期末考试数学(理)试题(有答案)

哈尔滨市第六中学上学期期末考试高三理科数学一、选择题(共12小题,每题5分,共60分) 1.复数ii i 1313+-+等于( ) A.i -3 B.i 2- C.i 2 D.02.等比数列{}n a 中,39a =,前3项和为32303S x dx =⎰,则公比q 的值是( )A. 1B.-12C. 1或-12D. -1或-123. 已知)6cos()42(cos 2ππ+=+x x ,则=x cos ( ) A.33 B. 33- C. 31 D 31-. 4.已知,x y 满足不等式组22y xx y x ≤⎧⎪+≥⎨⎪≤⎩,则2z x y =+的最大值与最小值的比值为( )A.21 B.2 C.23 D.34 5.下列选项中,说法正确的个数是( )(1)命题“0x R ∃∈,2000x x -≤”的否定为“0,2>-∈∃x x R x ”; (2)命题“在ABC ∆中,30A >,则1sin 2A >”的逆否命题为真命题; (3)设{}n a 是公比为q 的等比数列,则“1>q ”是“{}n a 为递增数列”的充分必要条件; (4)若统计数据n x x x ,,,21 的方差为1,则n x x x 2,,2,221 的方差为2; (5)若两个随机变量的线性相关性越强,则相关系数绝对值越接近1.A.1个B.2个C.3个D.4个6. 某校组织由5名学生参加的演讲比赛,采用抽签法决定演讲顺序,在“学生A 和B 都不是第一个出场,B 不是最后一个出场”的前提下,学生C 第一个出场的概率为( )A .13B .21C .19D .3207.如图,给出的是求111246+++ (1)20+的值的一个程序框图,则判断框内填入的条件是( ) A .10i ≥ B .10i ≤ C .9≥i D .9≤i8.一个几何体的三视图如图所示,则这个几何体的体积等于( )A.12B.4C.5639.某同学为了解秋冬季用电量(y 度)与气温(C x)的关系,曾由下表数据计算出回归直线方程为602+-=∧x y ,现表中一个数据被污染,则被污染的数据为( )A .40 B. 39 C .38 D . 37 10.若实数,y 满足|-1|-ln 1y=0,则y 关于的函数图象的大致形状是( )A B C D11.从抛物线x y 42=的准线l 上一点P 引抛物线的两条切线PB PA ,,B A ,为切点,若直线AB 的倾斜 角为3π,则P 点的纵坐标为( )A.33 B.332 C.334 D. 32 12. 若方程0122=---t x x 有四个不同的实数根4321,,,x x x x ,且4321x x x x <<<则)()(22314x x x x -+-的取值范围是( )A.]26,8[B.(]54,26C.[]54,8D.(]54,8 二、填空题:(共4题,每题5分,共20分)13.在52512⎪⎭⎫ ⎝⎛-x x 的二项展开式中,x 的系数为 .14. 在直三棱柱111ABC A B C -中,侧棱长为ABC ∆中,3,60=︒=AB C ,则此直三棱柱的外接球的表面积为 .15.已知点21,F F 分别是双曲线)0,0(12222>>=-b a by a x 的左、右焦点,过1F 的直线l 与双曲线的左、右两支分别交于B A ,两点,若|:|AB ||2BF 5:4:3|:|2=AF ,则双曲线的离心率为 .16.ABC ∆中,BC B c B A b ,tan 2)tan (tan =+边上中线长是1,则a 的最小值是 .三、解答题:(共70分)17.(共12分)已知数列{}n a 满足(){}21,n n n S a n N b *=-∈是等差数列,且1143,b a b a ==. (1)求数列}{n a 和}{n b 的通项公式; (2)若*)(211N n b b a c n n n n ∈-=+,求数列}{n c 的前n 项和n T .18.(共12分)2015年12月10日, 我国科学家屠呦呦教授由于在发现青蒿素和治疗疟疾的疗法上的贡献获得诺贝尔医学奖,以青蒿素类药物为主的联合疗法已经成为世界卫生组织推荐的抗疟疾标准疗法,目前,国内青蒿人工种植发展迅速,调查表明,人工种植的青蒿的长势与海拔高度、土壤酸碱度、空气湿度的指标有极强的相关性,现将这三项的指标分别记为,,x y z ,并对它们进行量化:0表示不合格,1表示临界合格,表示合格,再用综合指标x y z ω=++的值评定人工种植的青蒿的长势等级:若4ω≥,则长势为一级;若23ω≤≤,则长势为二级;若01ω≤≤,则长势为三级;为了了解目前人工种植的青蒿的长势情况,研究人员随机抽取了块青蒿人工种植地,得到如下结果:(1)在这10块青蒿人工种植地中任取两地,求这两地的空气湿度的指标相同的概率;(2)从长势等级是一级的人工种植地中任取一地,其综合指标为m ,从长势等级不是一级的人工种植地中任取一地,其综合指标为n ,记随机变量X m n =-,求X 的分布列及其数学期望.19.(共12分)如图,已知长方形ABCD 中,2,1AB AD ==,M 为DC 的中点,将ADM∆沿AM 折起,使得平面ADM ⊥平面ABCM .(1)求证:AD BM ⊥;(2)若点E 是线段DB 上的一动点,问点E 在何位置时,二面角E AM D --20.(共12分)如图,在平面直角坐标系xOy 中,已知圆:O 224x y +=,椭圆:C 2214x y +=,A 为椭圆右顶点.过原点O 且异于坐标轴的直线与椭圆C 交于,B C 两点,直线AB 与圆O 的另一交点为P ,直线PD与圆O 的另一交点为Q ,其中6(,0)5D -.设直线,AB AC 的斜率分别为12,k k .(1)求12k k 的值;(2)记直线,PQ BC 的斜率分别为,PQ BC k k ,是否存在常数λ,使得PQBC k k λ=?若存在,求λ值;若不存在,说明理由.21.(共12分)已知函数()()22ln f x x a x a x =-++,其中常数0a >.(1)当2a >,求函数()f x 的单调递增区间;(2)设定义在上的函数()y h x =在点()()00,P x h x 处的切线方程为():l y g x =,若()()0h x g x x x ->-在D 内恒成立,则称P 为函数()y h x =的“类对称点”,当4a =时,试问()y f x =是否存在“类对称点”,若存在,请至少求出一个“类对称点”的横坐标;若不存在,请说明理由.请考生在题(22)(23)中任选一题作答,如果多做,则按所做的的第一题计分.做题时用2B 铅笔在答题卡上把所选题目对应的题号涂黑. 22.(共10分)已知曲线1C 的极坐标方程为θρcos 4=,曲线2C 的参数方程是)0(sin cos πααα<≤⎩⎨⎧=+=为参数,t t y t m x ,射线4,4,πϕθπϕθϕθ-=+==与曲线1C 交于极点O 外的三点C B A ,,. (1)求||||||OA OC OB +的值;(2)当12πϕ=时,C B ,两点在曲线2C 上,求m 与α的值.23.(共10分)已知c b a ,,都是正数. (1)若b a ≠,求证:2233ab b a b a +>+;(2)求证:abc cb a ac c b b a ≥++++222222.高三理科数学答案1-12 DCABA ABBCB BD13.14.15.16.17.(1)由21,n n S a =-可得1121n n S a ++=-,两式作差可得1112n n n n a S S -++=-=,又111a S ==适合此通项公式,所以12n na -=;由此可得11431,4,b a b a ====由等差数列的性质可得n b n =;(2)由题意写出数列{}n c 的通项公式111211221n n n n n c a b b n n -+⎛⎫=-=-- ⎪+⎝⎭,再用分组求和法求之即可. 试题解析: (1) 1121,21n n n n S a S a ++=-=-,两式相减可得 111122,2n n n n n n n S S a a a a a ++++-==-∴=,当1n =时,111121,1S a a a ==-∴=,所以na 是以1为首项,2为公比的等差数列,所以12n na-=,11431,4,n b a b a b n ====∴=.(2)()1111221122211n n n n n n c a b b n n n n --+⎛⎫=-=-=-- ⎪++⎝⎭,111111111112221 (22121223121112)n n n n T n n n n ---⎛⎫⎛⎫∴=--+-++-=---=- ⎪ ⎪+++⎝⎭⎝⎭-18.(1)由表可知:空气温度指标为0的有1A ;空气温度指标为1的有23,58,910,,,A A A A A A ,空气温度指标为2的有46,7,A A A .所以空气温度指标相同的概率22632101532455C C P C ++===.(2)计算10块青蒿人工种植地的综合指标, 可得下表:其中长势等级是一级的4≥有234679,,,,A A A A A A ,共6个,长势等级不是一级的4<有15810,,,A A A A ,共4个.随机变量X的所有可能取值为:1,2,3,4,5.()()11111132312211116464171,2424C C C C C C P X P X C C C C ⋅⋅+⋅======⋅⋅,()()1111111111312121112111116464713,4248C C CC C C C C C C P X P X C C C C ⋅+⋅+⋅⋅+⋅======⋅⋅,()111111641524C C P X C C ⋅===⋅,所以X的分布列为:()123454242482412E X =⨯+⨯+⨯+⨯+⨯=19.(1)因为平面AMD ⊥平面ABCM ,2,1AB AD ==,M 为DC 的中点,AD DM ∴=,取AM 的中点O ,连结OD ,则DO ⊥平面ABCM ,取AB 的中点N,连结ON ,则ONAM ⊥,以O 为原点如图建立空间直角坐标系,根据已知条件,得0,0,0,0,0,0,A B MD ⎫⎛⎫⎛⎫⎛⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎭⎝⎭⎝⎭⎝,则AD ⎛=- ⎝⎭,()BM =,所以0AD BM ⋅=,故AD BM ⊥.(2)设DE DB λ=,因为平面的一个法向量()0,1,0n=,2ME MD DB λ⎛⎫=+= ⎪ ⎪⎝⎭,()0,0AM =.设平面AME 的一个法向量为(),,m x y z =,)20210x y z λλ⎧=⎪⎨-=⎪⎩,取1y =,得20,1,1x y z λλ===-,所以20,1,1m λλ⎛⎫= ⎪-⎝⎭,因为5cos ,m n m n m n⋅==⋅,求得51=λ 20.(1)设()00,y x B ,则()00,y x C --,142020=+y x所以4144114222022020000021-=--=-=+⋅-=x x x y x y x y k k (2)联立122(2)4y k x x y =-⎧⎨+=⎩得2222111(1)44(1)0k x k x k +-+-=,解得211122112(1)4,(2)11P P P k k x y k x k k --==-=++,联立⎪⎩⎪⎨⎧=+-=14)2(221y x x k y 得2222111(14)164(41)0k x k x k +-+-=, 解得212141)14(2k k x B +-=,2111414)2(k k x k y B B +-=-= 所以121241B BC B y k k x k -==-,121122112141562(1)641515P PQP k y k k k k k x k -+-===--+++, 所以52PQBC k k =,故存在常数52λ=,使得52PQBC k k =.21.(1)函数()f x 的定义域为()0,+∞,∵()()22l n f x x ax a x=-++,∴()()()()22122222a x x x a x a af x x a x xx⎛⎫-- ⎪-++⎝⎭=-++==,∵2a>,∴12a >,令()0f x '>,即()2120ax x x⎛⎫-- ⎪⎝⎭>,∵0x>,∴01x <<或2a x >,所以函数()f x 的单调递增区间是()0,1,,2a ⎛⎫+∞⎪⎝⎭; (2)当4a=时,()264ln f x xx x =-+,∴()426f x x x'=+-,()()200000042664ln y g x x x x x x x x ⎛⎫==+--+-+ ⎪⎝⎭, 令()()()()22000000464ln 2664ln x f x g x x x x x x x x x x x φ⎛⎫=-=-+-+--+-+ ⎪⎝⎭,则()00x φ=,()()()()00000000002442222262621x x x x x x x x x x x x x x x x x x x x φ⎛⎫⎛⎫-⎛⎫⎛⎫'=+--+-=--=--=- ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭⎝⎭,当0x ()x φ在002,x x ⎛⎫ ⎪⎝⎭上单调递减.∴当002,x x x ⎛⎫∈ ⎪⎝⎭时,()()00x x φφ<=,从而有002,x x x ⎛⎫∈ ⎪⎝⎭时,()00x x x φ<-,当0x ()x φ在002,x x ⎛⎫⎪⎝⎭上单调递减,∴当002,x x x ⎛⎫∈ ⎪⎝⎭时,()()00x x φφ>=,从而有002,x x x ⎛⎫∈⎪⎝⎭时,()00x x x φ<-,∴当(()2,x ∈+∞时,()y f x =不存在“类对称点”.当0x ()(22x x xφ'=,∴()x φ在()0,+∞上是增函数,故()00x x x φ>-,所以当0x=()y f x =存在“类对称点”.。

2015年12月份高三数学试题

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黑龙江省哈尔滨第六中学2025届高三第六次模拟考试语文试卷含解析

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纵观人类社会发展史,没有任何一种经济模式能够像数字经济一样,在短时间内爆发式增长,并深刻影响和重构世界经济。

数字经济的诞生与崛起,改变了世界经济体系,重构了全球产业发展格局。

它所面临的问题如何得以解决,也影响着人类社会的未来发展方向。

数字经济体的诞生与发展,是理解和把握数字经济的最佳视角。

就目前而言,数字经济体的出现一般来自于四条演化路径。

第一是互联网的原生路径,谷歌、脸书、阿里巴巴和腾讯等都是以互联网服务起家,着力建设互联网平台,培育产品生态,业绩和影响力在短期内获得了爆发性增长;第二是互联网大规模应用之前就已经存在的大型公司“进化”之路,如应用商店带动了苹果公司由一家企业向数字经济体的快速跃变;第三来自于汽车、健康、教育等大产业,这些产业在数字化转型过程中,可能培育出以大型平台为依托的、具有全行业服务属性的数字经济体;第四条路径则可能来自一些颠覆性的新技术,如物联网、区块链、人工智能等,这些新技术兼具了对生产力和生产关系的巨大影响力,有望构造出与当前大不相同的经济组织形态。

不同路径演变而来的数字经济体,往往有着相同的属性。

2022届黑龙江省哈尔滨市六中高三一模理综生物试题 (4)

哈尔滨市第六中学2019级高三第一次模拟考试理科综合能力测试生物一、选择题:1.玉米是生物学实验中常用的材料,其中叙述正确的是()A.用光学显微镜观察染色后的玉米根尖成熟区细胞,可观察到染色体B.玉米种子萌发时自由水与结合水的比值逐渐变小C.用纸层析法分离新鲜玉米绿叶中色素时发现各条色素带较窄,可能是研磨时未加Si02D.将玉米发芽的种子研磨液置于试管内立即加入斐林试剂后,马上可呈现砖红色【答案】C【解析】【分析】1、染色质和染色体的化学组成是DNA和蛋白质,染色质在细胞分裂间期,呈细长丝状;染色体在分裂期,螺旋化,缩短变粗.因而它们是同种物质在不同时期的两种形态。

2、水分为结合水和自由水两种形式,自由水与结合水的比例越大,新陈代谢越.强,自由水与结合水的比例越小,新陈代谢越弱。

3、提取光合色素时,加入无水乙醇,要少量多次加,以利于溶解色素;加CaCO3是为了保护色素,否则色素被分解的多了,提取液中的色素就少了,实验效果不明显;加石英砂(SiO2)可以使研磨更加充分。

4、检测还原糖时,采用斐林试剂,斐林试剂的使用需要现配现用,且需要水浴加热。

【详解】A、染色质和染色体的化学组成是DNA和蛋白质,染色质在细胞分裂间期,呈细长丝状;染色体在分裂期,螺旋化,缩短变粗.因而它们是同种物质在不同时期的两种形态;玉米根尖成熟区细胞已经高度分化,不会分裂,在显微镜下看不到染色体,A错误;B、水分为结合水和自由水两种形式,自由水与结合水的比例越大,新陈代谢越.强,自由水与结合水的比例越小,新陈代谢越弱;故玉米种子萌发时,新陈代谢增强,自由水与结合水的比值逐渐变大,B错误;C、用纸层析法分离新鲜玉米绿叶中色素时,加石英砂(SiO2)可以使研磨更加充分,使叶绿体内的色素释放出来,如果发现各条色素带较窄,说明释放的色素太少,可能是研磨时未加Si02,C正确;D、检测还原糖时,采用斐林试剂,斐林试剂的使用需要现配现用,且需要水浴加热,才能出现砖红色沉淀,D错误。

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哈尔滨市第六中学2016届高三第一次模拟考试
数学试卷(理工类)
考试说明:本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,满分150分,考试时间120
分钟
1.答卷前,考生务必将自己的姓名、准考证号填写在本试卷和答题卡相应位置上.
2.做答第Ⅰ卷时,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,用橡皮擦干净后,再选涂其它答案标号,写在本试卷上无效.
3.做答第Ⅱ卷时,请按题号顺序在各题目规定的答题区域内做答,超出答题区域书写的答案无
效,在草稿纸、试题卷上答题无效.
4.保持答题卡面清洁,不得折叠、不要弄破、弄皱,不准用涂改液、修正带、刮纸刀.
第Ⅰ卷(选择题 共60分)
一、选择题:本大题共12小题,每小题5分,在每小题给出的四个选项中,只有一项是符
合题目要求的.

1.复数(为虚数单位)的共轭复数为( )
(A) (B) (C) (D)
2.集合,则的子集个数为( )
(A)1个 (B)2个 (C)4个 (D)8个
3.有下列四个说法:

①命题“”的否定是“”;
②“命题为真”是“命题为真”的必要不充分条件;
③命题“已知,若或,则”的逆命题为真命题;

④在区间上随机取一个数,则事件“”发生的概率为;
其中正确的个数是( )
(A)1 (B)2 (C)3 (D)4
4.已知满足约束条件,则的最大值是( )
(A)0 (B)2 (C)4 (D)6

5.已知,则向量与的夹角为( )

(A) (B)
(C) (D)
6.某几何体的三视图如图所示,则该几何体的表面积与体积比为
( )

(A) (B)

(C)2+1 (D)
7.甲乙两名篮球运动员近几场比赛得分统计成茎叶图如图,
甲乙两人的平均数与中位数分别相等,则为( )
(A)3:2 (B)2:3
(C)3:1 或5:3 (D)3:2 或7:5

8.已知某随机变量X的概率密度函数满足
,当时,,则随机变量X落在区间内的概率为( )
(A) (B)
(C) (D)
9.中,角对应的边分别为,
若成等差数列,且,

则等于( )
(A) (B)
(C) (D)
10.老师为哈六中某位同学的高考成绩设计了一个程序框图,
执行如图所示的程序,若输出的数码为,
则这位同学的高考分数是( )
(A)682 (B)683 (C)692 (D)693

11.已知且,,下列关于三个函数的
说法
正确的是( )
(A)三个函数的单调性总相同

(B)当时,对任意,
(C)当时,三个函数没有公共点
(D)任意,三个函数都与直线相交

12.设双曲线的右焦点为,右顶点为,过作的垂线
与双曲线交于两点,过分别作的垂线交于,若到直线的距离
不小于,则该双曲线的渐近线斜率的取值范围是( )
(A) (B)
(C) (D)
第Ⅱ卷(非选择题 共90分)
本卷包括必考题和选考题两部分,第13题~第21题为必考题,每个试题考生都必须做
答,第22题~24题为选考题,考生根据要求做答.
二、填空题:本大题共4小题,每小题5分.

13.已知二项式的展开式中第三项的系数与的展开式中第二项的
系数相等,其中为锐角,则=

14.在平面直角坐标系中,以点为圆心且与直线
相切的所有圆中,半径最大的圆的标准方程为_______________________

15.长方体中,,点是中点,点,

,则长度最小值为______________
16.已知函数恰有3个零点,则实数的取值范围是
______________

三、解答题:本大题共70分,解答应写出必要的文字说明,证明过程或演算步骤.
(17)(本小题满分12分)

正项数列前项和为,且
(1)求数列的通项公式;

(2)若,数列的前项和为,证明:.

(18)(本小题满分12分)
哈六中数学组推出微信订阅号(公众号hl15645101785)后,受到家长和学生们的关注,为
了更好的为学生和家长提供帮助,我们在某时间段在线调查了60位更关注栏目1或栏目2
(2选一)的群体身份样本得到如下列联表,已知在样本中关注栏目1与关注栏目2的人数
比为2:1,在关注栏目1中的家长与学生人数比为5:3,在关注栏目2中的家长与学生人数
比为1:3
栏目1 栏目2 合计
家长
学生
合计
(1)完成列联表,并根据列联表的数据,若按99%的可靠性要求,能否认为“更关注栏目1
或栏目2与群体身份有关系”;
(2)如果把样本频率视为概率,随机回访两位关注者,更关注栏目1的人数记为随机变量,
求的分布列和期望;
(3)由调查样本对两个栏目的关注度,请你为数学组教师提供建议应该更侧重充实哪个栏
目的内容,并简要说明理由.
0.10 0.05 0.025 0.01 0.005 0.001
2.706 3.841 5.024 6.635 7.879 10.828

(,其中.)

(19)(本小题满分12分)

如图,在四棱锥中,底面是直角梯形,,


,平面,侧面底面
(1)求的值;
(2)求直线与面所成角的大小.
(20)(本小题满分12分)
抛物线,过点的直线与交于两点,且(为
坐标原点)面积的最小值为2

(1)求抛物线的方程;

(2)直线上的点满足,求点的轨迹方程.

(21)(本小题满分12分)
已知函数
(1)求函数的单调区间;
(2)当时,,求的取值范围;
(3)证明:,使得.


请考生在题(22)(23)(24)中任选一题作答,如果多做,则按所做的的第一题计分.做
题时用2B铅笔在答题卡上把所选题目对应的题号涂黑.
(22)(本小题满分10分)选修4—1:几何证明选讲

如图,正中,点在边上,在边上,且,
,,相交于

(1)证明:四点共圆;

(2)当点是中点时,求线段的长度.

(23)(本小题满分10分)选修4—4:坐标系与参数方程
在平面直角坐标系中,曲线,
曲线,以坐标原点为极点,轴的非负半轴为极轴建立极坐标

系,射线与曲线交于两点,与曲线交于两点,且
最大值为
(1)将曲线与曲线化成极坐标方程,并求的值;

(2)射线与曲线交于两点,与曲线交于两点,求四边形
面积的最大值.

(24)(本小题满分10分)选修4—5:不等式选讲

已知均为正数,且
(1)证明:;
(2)求的最大值.
理科数学
1-12 ACCDB ADAAC CB

13. 14. 15. 16.
17.(1)时,
时,因为,,所以
得,所以数列是以1为首项,2为公差的等差数列,所以
……6分

(2),
所以,

所以

……6分
18.(1)因为样本容量60,关注栏目1与关注栏目2的人数比为2:1,在关注栏目1中的家
长与学生人数比为5:3,所以,列联表如图
栏目1 栏目2 合计
家长
25 5 30
学生
15 15 30
合计
40 20 60

,所以能有99%的把握认为认为“更关注栏目1
或栏目2与群体身份有关系”。 ……5分

(2)的取值为0,1,2,由题意,,
所以,,,分布列如下
0 1 2
期望
……
5分
(3)关注栏目1与关注栏目2的人数比为2:1,关注栏目1的人数多,所以应该充实栏目1
的内容.
……2分

19.(1)因为,面底面,面面,所以
面,所以,因为平面面,所以,,
所以面,过点做的平行线为轴,分别为轴建立空间直

角坐标系,,所以,由得
,所以
……5

(2)设面法向量为,,,
解得,,所以线面角为
……7分

20.(1)①当时, , ,
②当斜率存在时,设与联立,得,

,所以当时面积最小,
所以,抛物线方程为
……6分
(2)设,

①当时, ,,点
②当斜率存在时,设与联立,得,
,,,由

得=
,因为,所以,化简得
,也符合。
所以点的轨迹方程为

……6分
21(1)
①当时,,所以的增区间为

②当时,,解得,
的增区间为,减区间
……4分
(2)因为,所以是的最小值,由题意,
由(1)增区间为,减区间
所以或,解得
……4分
(3)因为
①当时,在单调递增,所以存在,成立;

②当时,在上递增,所以存在,
成立;

③当时,,在上递减,所以存在,成立;
综上,总存在,使得
……4分

22.(1)
,又,
四点共
圆 ……4分

(2)连接,
以为直径的圆圆心为 ,

……
6分

23.(1),
=, ,

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