高二寒假自主练习及答案7份

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高二寒假练习题

高二寒假练习题

高二寒假练习题新年伊始,寒假练习题接踵而至,是考验我们学习成果的时刻。

本文将为大家提供一些高二寒假练习题,希望能够帮助大家在假期中充实自我,提升学习效果。

一、数学题1. 解方程:求解方程2x + 5 = 17。

解答:将方程转化为x的形式,得到:2x = 17 - 5 = 12,最终解得x = 6。

2. 计算:求解方程4x^2 - 3x + 2 = 0的根。

解答:使用二次方程求根公式,得到:x = (-b ± √(b^2 - 4ac))/ (2a)代入a = 4,b = -3,c = 2,计算可得:x = (-(-3) ± √((-3)^2 - 4*4*2))/ (2*4)x = (3 ± √(9 - 32))/ 8x = (3 ± √(-23))/ 8由于根号内为负数,该方程无实数根。

二、英语题1. 完成句子:Tom decided to go to the party, _______ he was feeling tired.解答:但是/虽然2. 翻译句子:他们正在讨论过去的一年所取得的成就。

解答:They are discussing the achievements made in the past year.三、语文题1. 说明文字:写一篇家乡的风景描述。

解答:远处的群山起伏着,仿佛一幅壮丽的画卷;湖水蓝得如同宝石,微风吹拂着波纹,阳光洒落其中,散发着温暖的光芒。

田野中一片金黄,稻谷正在丰收的时节,油菜花盛开的田野如同一幅色彩斑斓的油画。

这就是我美丽的家乡景色。

四、物理题1. 计算题:如果一辆汽车以每小时100公里的速度行驶,6小时后行驶的距离是多少?解答:速度 = 距离 / 时间,所以距离 = 速度 ×时间。

将速度换算为100千米/6小时,计算得距离为600千米。

五、化学题1. 完成反应方程式:将氢气和氧气反应生成水的方程式是?解答:2H₂ + O₂ → 2H₂O以上只是寒假练习题的一部分,希望大家能够认真完成每一道题目,巩固所学知识,为下学期的学习打下坚实的基础。

高二寒假自主练习及答案7份

高二寒假自主练习及答案7份

限时规范训练(练速度、练规范、练技能)必修 5 Unit 1 (1)必修 5 Unit 2 (4)必修 5 Unit 3 (7)必修 5 Unit 4 (11)必修 5 Unit 5 (14)选修 6 Unit 1—2 (18)选修 6 Unit 3—5 (21)必修 5 Unit 145分钟满分100分一、单项填空1. Lully has some knowledge of how the flower should be raised, but I have .A. notB. no notC. noneD. neither2. She remembered putting that cheque in a book on the shelf, so she ordered all the books to her.A. to bringB. bringingC. being broughtD. to be brought3. ---I’ll go on Monday by the slow train. ---You may just wait till Tuesday and go on the fast one.A. as wellB. rather thanC. much betterD. or else4. He hung about the entrance all day, a chance to speak to the director.A. hopingB. hoping toC. hoping ofD. hoping for5. It’s useless to persuade him to get rid of that habit; he just can’t make .A. trying; itB. to try; thatC. trying; thatD. in trying; it6. Everybody in his office him his big house.A. enviesB. admiresC. appreciatesD. likes7. I promise that you have five dollars if you clean all the windows.A. willB. wouldC. shallD. should8. The child was abandoned in the forest, where he was the mercy of wild beasts.A. onB. byC. inD. at9. ---How far apart do they live? --- I know, they live in the same neighborhood.A. As long asB. As far asC. As well asD. As often as10. I will come to your birthday party John is invited.A. so thatB. except thatC. on condition thatD. in that11. Just as sound travels through the air waves, electricity travels through the air in radio waves.A. what is calledB. which is calledC. what it calledD. which it is called12. According to the survey, it is almost that the government will lose the next election.A. sureB. certainC. exactD. doubtful13. The wealth of a country should be measured the health and happiness of its people aswell as the material goods it can produce.A. in terms ofB. by meansC. in place ofD. in line with14. You have hurt a bone in your back. I’d like to send you to hospital for an X-ray.A. mayB. canC. shouldD. would15. The general director of the project that the work should be started at once.A. arrangedB. instructedC. orderedD. directed二、完形填空As a teenager I was a productive letter writer. One letter I wrote 16 to 56 pages, and was 17 of the extremely ordinary details of daily life. It could only have been of interest to me, and maybe, the receiver. But them 18 , it might become attractive just because of the 19 details it recorded.Official records of history -books and pictures -may record important events 20 they were always intended to have a large audience. 21 , letters tend not to be modified (修饰), often true to 22 . They were, after all, 23 for just one pair of eyes.Sadly, however, we don’t write proper letters any more. Not only that, but, it’s a fact that nowadays hardly anyone 24 to the letters they have received. We think only about 25 living and throwing things out. Who among us will leave any helpful papers for historians? In researching a book, I would never have found out that, in the late 19th century, showy waistcoats caused a lot of 26 , if I hadn’t read the 27 . One fellow even wrote to a friend to say that if he were to ever meet a man wearing a kind of showy clothes he 28 shoot the man on sight.What a 29 if such details were lost due to lack of letter writing and a little saving. I think we should all 30 to write at least one letter a month and try to 31 those we get. 32 good emails should be printed out and kept, too. Emails may not leave an example of our handwriting, but 33 they allow us to record our lives. Some years ago, a friend 34 me with a bundle of letters that I’d sent her since I was 16. They gave a wonderful 35 of my teenage. History will need to know this, I’m sure.16. A. ran B. led C. referred D. turned17. A. fond B. covered C. full D. filled18. A. personally B. historically C. politically D. commonly19. A. useless B. important C. unimportant D.meaningful20. A. so that B. while C. where D. because21. A. Therefore B. Besides C. Otherwise D. However22. A. life B. fact C. nature D. themselves23. A. used B. intended C. tried D. limited24. A. holds out B. holds on C. holds back D. holds up25. A. enriching B. making C. simplifying D. earning26. A. interest B. worry C. matters D. accidents27. A. letters B. newspapers C. stories D. magazines28. A. ought to B. need C. would D. must29. A. pity B. fun C. wonder D. danger30. A. have B. aim C. insist D. stick31. A. keep B. read C. destroy D. print32. A. Partly B. Probably C. Largely D. Especially33. A. at most B. at least C. little more than D. no more than34. A. presented B. returned C. showed D. brought35. A. opinion B. experience C. description D. report三、阅读表达Hello. It’s one of the first words we learn as babies, yet it’s one of the last ones we think to use as adults. That’s unfortunate, because saying hello is more than just saying hello -it is recognition of another’s worth. How might the world change -how might we change -if we mastered this word? To find out, I spent one month saying hello to every person I met. Here’s what I’ve learned.It can boost (促进) productivity. In one of the few studies ever done on this subject, Allan Allday, an assistant professor of special education at Oklahoma State University, had middle school teachers greet their students individually each morning. This exchange of greeting raised the kids’ productivity. School went from impersonal to personal, and that resulted in more class participation and better grades.Environments influence friendliness. One study found that people in the city were likely to kiss one hands with a stranger than those in the countryside. And, researchers say clear environments generally encourage more smiles and hellos than unpleasant ones. My experience was similar. Whatever the reason, my urban hellos were answered far less often than my rural one. Similarly, people in vacation spots, like the Jersey Shore, were far friendlier than those hurrying to work downtown.It’s a form of universal health insurance. It’s impossible to say hello without smiling. And smiling has been shown to lower blood pressure, relieve stress and boost happiness. Apparently, a smile creates a similar effect on the recipient (接受者).So maybe we can make the world a better place by . After a month of doing it, Ifeel lighter and more connected and I have a better sense of well-being.36. What does the author say about the adult according to Paragraph 1? (within 8 words)37. Which sentence in the passage is the closest in meaning to the following one?Teacher and students got friendlier so that the students became more active in learning and scored higher in tests.38. Fill in the blank in the fifth paragraph with proper words. (within 5 words)39. List three effects of smiling on health according to the text. (within 8 words)○1○2○340. Translate the underlined sentence in Paragraph 3 into Chinese.必修5Unit 11—5 CDADA 6—10 ACDBC 11—15 ABAAC 16—20 ACBCD 21—25 DABBC 26—30 BACAB31—35 ADBAC36. Adults seldom say hello. / Adults are not willing to say hello.37. School went from impersonal to personal, and that resulted in more class participation and better grades.38. saying hello to each other / greeting each other / saying hello39. ○1lowering blood pressure ○2relieving stress ○3boosting happiness40. 不管出于什么原因,我在城市打招呼得到的回应比在乡村少得多。

高二物理上学期寒假自测试题(二)高二全册物理试题

高二物理上学期寒假自测试题(二)高二全册物理试题

嘴哆市安排阳光实验学校内蒙古鄂伦春自治大杨树镇高二物理上学期寒假自测试题(二)一、选择题:本题共14个小题,每小题4分,共56分。

在每小题给出的四个选项中,有的只有一个选项正确,有的有多个选项正确,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、在电磁学发展过程中,许多科学家做出了贡献。

下列说法正确的是 A .库仑发现了点电荷的相互作用规律 B .安培发现了电流的磁效应C .洛仑兹发现了磁场对电流的作用规律D .奥斯特发现了磁场对运动电荷的作用规律 2、下列单位之间关系的等式成立的是A 、1N=1T·AB 、1Wb=1T·mC 、1N/C =1V/mD 、1eV =1J3、当导线中分别通以图示方向的电流,小磁针静止时北极指向读者的是A B C D4、如图所示的四幅图都是通电直导线放入匀强磁场中的情况,其中直导线所受安培力为零的是A B C D5、如图所示,在真空中有两个等量的正电荷q 1、q 2,分别固定于A 、B 两点,C 为A 、B 两点电荷连线的中点,DC 为A 、B 连线的中垂线。

现将一带负电..的试探电荷q 3由C 点沿CD 移至无穷远处的过程中,重力不计,下列结论正确的是A .电势逐渐减小B .电势能逐渐减小C .q 3受到的电场力逐渐减小D .电场力对负电荷q 3做正功 6、平行板电容器的电容A .跟两极板间的距离成正比B .跟充满极板间的介质的介电常数成正比C .跟两极板的正对面积成正比D .跟加在两极板间的电压成正比7、关于欧姆表及其使用中的问题,下列说法中正确的是A .接表内电源负极的应是黑表笔B .测电阻换档时,要重新调节调零电阻,使指针指到电阻阻值刻度的零位置C .表盘上标明的电阻阻值刻度是均匀的D .表盘刻度最左边电流值为零的位置表示的电阻阻值也为零8、一个电流表的满偏电流Ig =1mA ,内阻Rg =500Ω,要把它改装成一个量程为3V 的电压表,则A .应在电流表上再串联一个阻值为3K Ω的电阻B .应在电流表上再并联一个阻值为3K Ω的电阻C .改装后的电压表内阻是500ΩD .改装后的电压表内阻是3 k Ω9、如图所示,一个面积为S 的矩形线圈abcd 静止在倾角为θ的斜面上,整个装置处于磁感应强度为B的匀强磁场中。

高二寒假作业及答案myz

高二寒假作业及答案myz

1.解析:(1)A :(2)kxF F f ==21当A 、B 出现相对滑动时,F f2最大,弹簧的形变量最大。

21f N A F F G μμ== 得:0.1x m =。

2.解析:201112l v t at =+()()201212122l v t t a t t =+++ ()()201212132l v t t t a t t t =+++++得:737t s -=。

3.(10分)解析:(1)设卫星的质量为m ,地球的质量为M ,根据万有引力定律22Mm v G m r r=(2分)r=R+h(1分)设在地球表面有一质量为m '的物体,根据万有引力定律2Mm Gm g R''= (2分)求出卫星的线速度v = (1分)(2)根据万有引力定律222()Mm Gm r T r π=(3分)求出卫星的周期2()R h T R π+== (1分)4.(11分)解析:(1)从C 到D ,根据平抛运动规律, 竖直方向212h gt =(2分) 求出t=0.30s(1分)(2)从C 到D ,根据平抛运动规律, 水平方向 x =v C t (2分) 求出v C =2.0m/s(1分)(3)从A 到C ,根据动能定理21()02f C mg Hh W mv --=- (4分) 求出克服摩擦力做功 W f =0.10J(1分)5.解析:(1)在14-18s 段,小车加速度a=v t ∆,解得220-6a=/ 1.5/14-18m s m s =-。

阻力大小f =ma =1.0×1.5N=1.5N 。

(2)在10-14s 小车做匀速直线运动,牵引力F=f 。

P=Fv=1.5N ×6m/s=9W 。

(3)0-2s 内,小车做匀加速运动,1111S =32v t m =。

2s-10s 内,小车做变加速运动,根据动能定理2222111t =22P fS mv mv --。

解得S 2=39m 。

高二语文寒假作业答案,高二上册语文寒假作业答案

高二语文寒假作业答案,高二上册语文寒假作业答案

高二语文寒假作业答案,高二上册语文寒假作业答案以下是由为您整理提供的关于高二语文寒假作业答案的内容,希望能够帮助到您,欢迎阅读与借鉴。

高二语文寒假作业答案一、1.【答案】B【解析】本题重点考查考生识记现代汉语普通话字音的能力,须结合语境具体分析。

A项悚sǒnɡ C项牾wǔ D项辗zhǎn 注意错误均排除。

2. 【答案】D【解析】本题重点考查考生正确辨析和使用成语的能力,需根据语境和词义来分析。

A项不孚众望:指不能使大家信服,意思说反了,应为“不负众望”。

望文生义。

B项呼之欲出:指画得十分逼真,一叫就会出来似的。

也泛指文学作品对人的描写十分生动。

形容对象错了。

C项渐入佳境:指状况渐好或兴趣逐渐浓厚。

主体应是人,但句子语境为家具。

形容对象错了。

D项醍醐灌顶:比喻听了高明的意见使人受到很大启发。

也形容清凉舒适。

符合语境。

3.【答案】C【解析】本题重点考查考生辨析并修改病句的能力,需要熟练掌握病句的几种类型。

A项“不但……还……”联结的内容无关联性且这组关联词一般表递进关系,而本例中还后面的内容与“他在英语国家工作”无直接关系。

B项“制度的决策、出台、执行”应为“酝酿、出台、执行”。

不合逻辑。

D项经济全球化的日益深化与就业压力无关联。

4. 【答案】C【解析】本题重点考查考生语言表达连贯和文章逻辑顺序安排的能力,解答时需要通读全部语句,理清思路,把握文段内容。

首先明确整段话叙述的中心是茶发展历史及词义的演变。

先总说茶与我们生活息息相关⑤,再介绍“茶”字发展演变的历史④,①③为“茶”字形体演变⑥②“茶”义项与生活的关系密贴。

根据每句话的逻辑关系及关联性词语处理好句子顺序。

一开始选⑥,给人以突兀的感觉,从生活贴入,水到渠成的讲“茶”字的发展演变,非常自然、合理。

故排除⑥为第一句,B、D项排除了,⑤②之间关系不如⑥②之间关系紧密。

所以答案为C5. 【答案①既然自称为“客”(或“他自号为‘客’”); ②戏曲界无人不知(或“戏曲界人人都知道”):③他还搜集了 700余份戏单。

高二语文寒假作业答案「最新」

高二语文寒假作业答案「最新」

高二语文寒假作业答案「最新」高二语文寒假作业答案「最新」在寒假到来之际,店铺为大家分享的是高二的语文寒假作业答案,希望能帮助到大家!第一单元1.D(A“倩”应读“qiàn”;B“娑”应读“suō”;“蟀”不是轻声,应为“shuài”;C“澄”应读“dèng”,作动词用,作形容词用时读作“chéng”)2.B(A“翻”应为“番”;C“度”应为“渡”;D“击”应为“激”)3.C(A句“冷静”后用分号;B句“何尝有别”后用逗号;D句“一会儿说”后用逗号)4.D(熏陶:指长期接触的人对生活习惯、思想行为、品行学问等逐渐产生好的影响;熏染:指长期接触的人或事物对生活习惯逐渐产生某种影响,多指坏的;留连:同流连,留恋不止,舍不得离去;留恋:不忍舍弃或离开;筹办:筹划办理,对象是事情;筹措:设法弄到,对象是财务等。

)5.B(化为泡影:多用来指“希望、诺言、计划”等落空,可改为“化为乌有”。

信笔涂鸦:没有多加考虑,随意写或画。

下里巴人:指通俗的艺术。

)6.B(A不合逻辑,“想真正赢得读者”与“是否具有” 两面对一面;C“要从党和人民的根本利益为出发点”杂糅;D成分残缺,在句末加“的目的”。

)二、7. 院落秋色、槐树落蕊、秋蝉残声8.(1)相似联想(2)相似联想(3)相似联想(4)相关联想9.两种声音的描写,以声写静,更能让读者感受到了北国秋天的“清、静、悲凉”。

10.这与文眼一致,从视觉效果上突出了北国秋的“清、静、悲凉”,恰当地传达了作者的忧郁、孤独的心境。

三、11.众荷喧哗,描绘了满塘荷花竞相开放的景象。

“你的脸/便哗然红起来”写出了这朵荷花羞涩的.模样,它正含羞半开。

12.衬托(烘托)。

突出作者赏荷的激动心情。

13.爱屋及乌。

“爱荷的人不但爱它花的娇美,叶的清香,枝的挺秀,也爱它夏天的喧哗,爱它秋季的寥落,甚至觉得连喂养它的那池污泥也污得有些道理”或“兴衰无非都是生命过程中的一部分”。

物理高二第一学期寒假作业试题(有答案)

物理高二第一学期寒假作业试题(有答案)

2019年物理高二第一学期寒假作业试题(有答案)高中物理课本共三册,其中第一,二册为必修,第三册为必修加选修。

小编准备了物理高二第一学期寒假作业试题,具体请看以下内容。

一、本题共10小题,每小题4分,共40分。

在每小题给出的4个选项中,1~6小题只有一个选项是正确的,7~10小题有多个选项正确,全部选对得4分,选不全的得2分,有选错或不选的得0分。

请将正确选项填入答题卡中。

1. 对下列物理史实的描述正确的是A.丹麦物理学家奥斯特发现了电磁感应现象B.英国物理学家法拉第发现了电流的磁效应C.美国科学家富兰克林发现尖端放电现象D.法国物理学家库仑测出了电子的电量2.如图所示,两根垂直纸面平行放置的直导线M和N,通有大小相等方向相反的电流,则在M、N连线的中点处的磁感应强度B的方向是A.水平向右B.水平向左C.竖直向上D.竖直向下3.真空中有甲、乙两个点电荷,当它们相距r时,它们间的静电力为F.若甲的电荷量变为原来的2倍,乙的电荷量变为原来的,两者间的距离变为2r,则它们之间的静电力变为A. B. C. D.4.如图,a是竖直平面P上的一点。

P前有一条形磁铁垂直于P,且S 极朝向a点,P 后一电子在偏转线圈和条形磁铁的磁场的共同作用下,在水平面内向右弯曲经过a点。

在电子经过a点的瞬间。

条形磁铁的磁场对该电子的作用力的方向A.向上B.向下C.向左D.向右5.如图所示为静电力演示仪,两金属极板分别固定于绝缘支架上,且正对平行放置。

工作时两板分别接高压直流电源的正负极,表面镀铝的乒乓球用绝缘细线悬挂在金属极板中间,则A.乒乓球的左侧感应出负电荷B.乒乓球受到扰动后,会被吸在左极板上C.乒乓球共受到电场力,重力和库仑力三个力的作用D.用绝缘棒将乒乓球拨到与右极板接触,放开后乒乓球会在两极板间来回碰撞6.如图所示,两块大小、形状完全相同的金属平板平行放置,构成一平行板电容器,合开关S,电源给电容器充电.下列说法正确的是A.保持S接通,减小两极板的距离,则两极板间电场的电场强度减小B.保持S接通,在两极板间插入一块介质,则极板上的电量增大C.断开S,减小两极板间正对面积,则两极板间的电势差减少D.断开S,减小两极板间的距离,则极板上的电量减少7.一带正电的小球向右水平抛入范围足够大的匀强电场,电场方向水平向左。

高二数学寒假学生自主学习案全部答案

高二数学寒假学生自主学习案全部答案

1.点、线、面之间的位置关系(一)一.填空题:本大题共10小题,每小题5分,共50分.1. ②④2. ③④3.4.1,35. ③7. ①③ 8. ②③ 9. 24/5、24 10.a 2/8二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤. 11.(1)略证:作CD 中点G ,连结EG ,FG , 易证平面EFG //平面P AD ,从而EF //平面P AD .(2)略证:取AD 中点H , PH ⊥AD ,由于侧面P AD ⊥底面ABCD , PH ⊥底面ABCD ,所以PH ⊥CD ,又CD ⊥AD ,所以CD ⊥平面P AD , 从而 平面PDC ⊥平面P AD . 12.(1)略;(2)E 是PC 中点略证:作CD 中点F ,连结EF ,EB ,FB , 易证平面EFB //平面PDA ,从而得证. 13.(1)取BB 1中点G ,连结EG , FG ,下证略;(2)略证:因为AB =CC 1=2,所以四边形ABA 1B 1是正方形,所以AB 1⊥A 1B ,又AB 1⊥BC 1,所以AB 1⊥平面A 1BC 1,所以AB 1⊥A 1C 1,又由于A 1C 1⊥AA 1,所以A 1C 1⊥平面AB 1A 1,所以A 1C 1⊥A 1B 1, 即A 1C 1⊥AB .(3)设BM =x ,则1B BCM V -,又V 棱柱= 所以1B BCM V -/V 棱柱=16, 解得:x =1, 所以M 是AB 中点. 14.(1)因为P A ⊥面ABC ,AD ⊥BD ,所以PD ⊥BD.所以tan ∠PCD =PD DC =x ,tan ∠PBD = PD BD =2x,tan θ=tan(∠PCD -∠PBD )= 22x x +=1/(x +2x )≤4(x >1).故当x(2)由题意,tan ∠BQC >tan ∠BAC =13,令tan θ =22x x + >13, 解得1<x <2,与x >1交非空,所以存在这样的点.2.点、线、面之间的位置关系(二) 及空间几何体的表面积和体积一.填空题:本大题共10小题,每小题5分,共50分.1.(-3,4,5)2.35003cm π 3.36 4.14π 5.21C 1BA 1A 6.③7. ②③④ 8.33cm9.3 R 二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤.11.(1)略.(2)易证AC ⊥CB ,又AC ⊥BB 1, 所以平面ACD 1⊥平面BB 1C 1C .12. (1)略证:AD ⊥BC , AD⊥CC 1,所以AD ⊥B 1F . 由于B 1C 1,CC 1=2a ,解得△B1FD 中,B 1F ,FD B 1D,满足勾股定理,故B 1F ⊥FD ,所以得证. (2)即三棱锥F -AB 1D 3. (3)E 为AA 1中点.略证:连结EC 交AF 于O ,则O 是EC 所以OD //ED ,所以此题得证. 13.(1)略证:取BC 中点E ,AC 中点F ,连结MF ,EF ,NE , 易证平面MNEF // ACC 1A 1,所以此题得证. (2)略证:连结NB ,NA 1,易证NB =NA 1,所以MN ⊥A 1B连结MB 1,MC 1,易证MB 1=MC 1,所以MN ⊥B 1C 1,即MN ⊥BC ,此题得证.14.(1)O 是AD 靠近D 的三等分点,证略.(2)略证;因为侧面P AD ⊥底面ABCD ,∠BAD =900所以AB ⊥面P AD ,所以AB ⊥PD ,又P A ⊥PD , 所以PD ⊥面P AB .所以此题得证3.直线与方程一.填空题:本大题共10小题,每小题5分,共50分. 1.76π 2.)(49-,3.161±=x y 4.]()4,1,3⎡-∞-+∞⎢⎣ 5.6=+y x 或02=-y x 6.1- 7. 0524=--y x 8.0523=+-y x 9.0=+-b ay x 10.)(1,1二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤. 11.解:0471326=-+y x . 12.解:06=+y x . 13.解:0105=--y x .14.解:(1)证明:设A B 、的横坐标分别为1x 、2x , 由题设知11>x ,12>x ,点()181log ,x x A ,()282log ,x x BF1因为A B 、在过点O 的直线上,所以1228118log log x x x x =, 又点D C 、的坐标分别为()()222121log ,log ,x x x x 、, 由于28221812log 3log log 3log x x x x ==,,则118112log 3log x x x x k OC ==,228222log 3log x x x x k OD ==,由此得OD OC k k =, 即D C O 、、在同一直线上.(2)由BC 平行于x 轴,有2812log log x x =,又1812log 3log x x = 312x x =∴将其代入1228118log log x x x x =,得1811831log 3log x x x x = 由于11>x 知0log 18≠x ,故331131==x x x ,,于是()3log ,38A .4.圆与方程一.填空题:本大题共10小题,每小题5分,共50分. 1.()()252222=++-y x 2.16m >-3. 相交 4.052=±-y x 5. 0465=--y x 6. 14 7. 03=--y x 8. 8 9. )[21, 10.)(∞+,3 二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤. 11.解:﹙过程略﹚圆方程为:0108422=+--+y x y x .12.解:3x +4y -3=0或4x +3y +3=0.13.解:设动圆的圆心C 的坐标为(x ,y ),则x -(-1)+1=22)2(y x +-,即x +2=22)2(y x +-,整理得y 2=8x .所以所求轨迹E 的方程为y 2=8x .14.﹙1﹚证明:l 的方程为()()0724=-++-+y x m y x ,∴⎩⎨⎧=-+=-+04072y x y x ,得⎩⎨⎧==13y x , 即l 恒过定点)(1,3.)(1,2, C AC = 圆心坐标为,A C ∴点在圆内,因此直线恒与圆相交于两点.当弦长最小时,AC l ⊥,由12AC k =-,052=--∴y x l 的方程为.5.平面解析几何初步综合一.填空题:本大题共10小题,每小题5分,共50分. 1.21 2.1或-3 3. 22(2)(2)2x y -+-= 4.0323=--y x 5.23-6. 22(2)5x y ++=7. 12-8. 44k -<<9. 424k k -<<-<<或110.(165,0) 二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤. 11.解:(1).1-=m (2)23-=m . (3).6-=m (4)89-=m . 12.解:圆C 的方程可化为(x +1)2+(y -3)2=5,∴圆心C (-1,3),直线BC 的方程为:x +2y -5=0 ①又线段AB 的中点D (25,21),k AB =-1∴线段AB 的垂直平分线方程为:y -21=x -25,即x -y -2=0 ② 联立①②解得x =3,y =1,∴所求圆的圆心为E (3,1),半径|BE |=5, ∴所求圆的方程为(x -3)2+(y -1)2=5. 13.解:(1)设圆心(,0)C a ,0a >,半径为r ,则||1||2a ra r =⎧⎪⎨+=⎪⎩ , 11a r =⎧∴⎨=⎩ 所求圆的方程为22(1)1x y -+=.(2)作CH AB ⊥垂足为H ,则H 为AB中点||AH =,1||2CH ==,即点C 到直线m 的距离为12.1||12m m +∴=218m ∴=,m =14.解:(1)直线CD 方程为4y x =+,圆心(,)22a aE,半径r =.|4|a a -+=,解得4a =. (2)∵||CD ==∴当PCD ∆面积为12时,点P 到直线CD的距离为又圆心E 到直线CD距离为定值),要使PCD ∆的面积等于12的点P 有且只有三个,只须圆E=10a =, 此时,⊙E 的标准方程为22(5)(5)50x y -+-=.6.常用逻辑用语一.填空题:本大题共10小题,每小题5分,共50分. 1.R m ∀∈,都使方程x 2+mx +1=0没有实数根. 2.若x =a 或x =b ,则x 2-(a +b )x +ab =0. 3.①② 4.充分不必要条件 5.a 2+b 2=0 6.必要不充分条件 7.必要非充分条件 8.51<->n m 且 9.①②③ 10. 11(,)(,)23-∞-+∞二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤.11.解:对任意实数x 都有012>++ax ax 恒成立⎩⎨⎧<∆>=⇔000a a 或 40<≤⇔a ;关于x 的方程02=+-a x x 有实数根41041≤⇔≥-⇔a a ;如果 p 正确,且q 不正确,有44141,40<<∴><≤a a a 且; 如果q 正确,且p 不正确,有041,40<∴≤≥<a a a a 且或.所以实数a 的取值范围为()1,0,44⎛⎫-∞ ⎪⎝⎭. 12.解:25|0ax A x x a -⎧⎫=>⎨⎬-⎩⎭.若3A ∈,则3509a a ->-,即593a <<;若5A ∈,则55025a a->-,即125a <<. 若p 真q 假,则593125a a a ⎧<<⎪⎨⎪⎩,≤或≥,a 无解;若p 假q 真,则593125a a a ⎧⎪⎨⎪<<⎩≤或≥,, 解得513a <≤或925a <≤.综上,[)519253a ⎛⎤∈ ⎥⎝⎦,,.13.解:若按一般思维习惯,对三条抛物线与x 轴公共点情况一一分类讨论,则较为繁琐,若从其反面思考,先求“三抛物线均与x 轴无公共点的a 的范围”则很简单.由 ()()()()2122223444301404420a a a a a a ⎧∆=--+<⎪⎪∆=--<⎨⎪∆=--<⎪⎩解之,得312a -<<-,记3R,,12I A ⎛⎫==-- ⎪⎝⎭,则所求a 的范围是 ∁[)3,1,2R A ⎛⎤=-∞--+∞ ⎥⎝⎦ .14.解:由x 2-2x +1-m 2 ≤0 ,0m > 得11m x m -≤≤+.∴q ⌝:A ={}|11x x m x m <->+或.由1123x --≤,得210x -≤≤.∴p ⌝:{}|210B x x x =<->或. 因为p ⌝是 q ⌝的必要非充分条件,且0m >, ∴A ⊆B .∴0(1)12(2)110(3)m m m ⎧>⎪⎪-≤-⎨⎪+≥⎪⎩即9m ≥, ∴m 的取值范围是9m ≥. 7.椭 圆一.填空题:本大题共10小题,每小题5分,共50分.1.18014422=+y x 或11448022=+y x 2.1101522=+y x 3.4 4.545.566 6.49 7.m =2 2. 8.m ≥1且m ≠5 9.),133[ 10.)1,362(- 二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤. 11.解:过P 作P M ⊥X 轴交于M ,PM F F S F PF ∙=∆212121=1,∴PM=1,P 到X 轴的距离为1,)1,)1,-∴a a P 或(( 代入22154x y +=得a=215±,)1,215(),1,215(-±±∴P p . 12.证明:设以PF 2为直径的圆心为A ,半径为r . ∵F 1、F 2为焦点,所以由椭圆定义知|PF 1|+|PF 2|=2a , |PF 2|=2r ,∴|PF 1|+2r =2a ,即|PF 1|=2(a -r )连结OA , 由三角形中位线定理,知 |OA |=.)(221||211r a r a PF -=-⨯= 故以PF 2为直径的圆必和以长轴为直径的圆相内切.评注:运用椭圆的定义结合三角形中位线定理,使题目得证.13.解:(1) [解法一] x l ⊥ 轴, 2F ∴的坐标为()0,2 ,由题意可知 ⎪⎩⎪⎨⎧=-=+,2,1122222b a ba 得 ⎩⎨⎧==.2,422b a ∴所求椭圆方程为12422=+y x . [解法二]由椭圆定义可知a MF MF 221=+. 由题意12=MF ,121-=∴a MF . 又由Rt △21F MF 可知()122)12(22+=-a ,0>a , 2a ∴=,又222=-b a ,得22=b .∴ 椭圆C 的方程为12422=+y x . (2) 直线2BF 的方程为2-=x y . 由 ⎪⎩⎪⎨⎧=+-=,124,222y x x y 得点N 的纵坐标为32.又2221=F F,∴11823F BN S ∆=⨯⨯=⎭. 14.解:(1)由已知可设椭圆的方程为222y ax + =1(a >1),其右焦点为F (c ,0)到直线022=+-y x 的距离为)0(32220>=+-c c ,∴2=c .∴3222=+=c b a ,故椭圆的方程为1322=+y x .(2)设M (x ,y )是椭圆上一点,则3322=+y x ,于是22222)(y x m y x PM +=-+=3222222++--=+-m my y m my , 即22-=PM 323)2(22+++m m y .2PM 是关于y 的二次函数,其图象为开口向下的抛物线,对称轴方程为2my -=,∵点),(y x M 在椭圆上,∴-1≤y ≤1. 当12-<-m,即m >2时,2,1PM y -==2m +2)1(12+=+m m 为最大值 ; 当时即2,12-<>-m m,22,1m PM y ==12+-m 2)1(-=m 为最大值;当121≤-≤-m ,即22≤≤-m 时,2m y -=,32322+=m PM 为最大值. ∴⎪⎪⎩⎪⎪⎨⎧-<-≤≤-+>+==).2(1),22(323),2(1)(2m m m m m m m f d .8.双曲线与抛物线一.填空题:本大题共10小题,每小题5分,共50分.1.27 2.25 3.2 4.(21,1) 5.7 6.32x -62y =17.(2,4) 8.12 9.8 10.35二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤.11.(1)82x -42y =1;(2)2x -32y =1 或 732y -72x =1;(3) 22x -42y =1 或 22y -42x =112.解:解:直线l 的方程为bx+ay -ab=0.由点到直线的距离公式,且a>1,得到点(1,0)到直线l 的距离d 1 =22)1(ba ab +-.同理得到点(-1,0)到直线l 的距离d 2 =22)1(ba ab ++.s= d 1+d 2=22b a ab+=c ab 2.由s ≥54c,得cab 2≥54c,即5a 22a c -≥2c 2.于是得512-e ≥2e 2.即4e 2-25e+25≤0.解不等式,得45≤e 2≤5.由于e>1>0,所以e 的取值范围是525≤≤e13.解:(1)∵c F F 221=,︒=∠3021F PF ,∴c PF 3322= ,c PF 3341=.∴=c 332a PF PF 221=-, ∴3==a c e . ∴222a b = ∴双曲线的方程可以设为22222a y a x -=1 .∴双曲线的渐近线方程为:x y 2±=.(2) 1F (c 、0)它到渐近线02=-y x 的距离为632=c ,∴2182=c .∴92=c ,32=a ,62=b .∴双曲线的标准方程为16322=-y x . 14.解(1)设),(11y x P 是双曲线上任意一点,该双曲的两条渐近线方程分别是02,02=+=-y x y x点),(11y x P 到两条渐近线的距离分别是5|2|,5|2|1111y x y x +-, 它们的乘积是545|4|5|2|5|2|21211111=-=+-y x y x y x .点P 到双曲线的两条渐线的距离的乘积是一个常数. (2)设的坐标为(x,y),则222||(3)PA x y =-+22(3)14x x =-+-25124()455x =-+||2x ≥, ∴ 当512=x 时,2||PA 的最小值为54,即|PA|的最小值为552.9.导 数(一)一.填空题:本大题共10小题,每小题5分,共50分.1.2 2.20 3.6 4.4x -y =3 5.2 6.-21 7.64251--或 8.2e 9.x cos 10.y =50!x 二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤. 11.(1)2ln 1x xy -='; (2) 12+='x x y ;(3) x y c o s 21=' ; (4)2)1(1x x y -='.12.直线 y =0 ; (0,0).13.2000000)2(21)2(1)2(21)(x x x x x x S -=-⋅-=. 14.(1)016312=--y x ;(2) 016312=--y x ,0233=+-y x .10.导 数(二)一.填空题:本大题共10小题,每小题5分,共50分.1.(0,1) 2.)2,65(),6,0(πππ3.1b ≤- 4.3 5.2 6.x x x x f 96)(23+-= 7.)(x f =121413123--+x x x 8.1,2- 9.)3,0()0,3(⋃- 10.±1二.解答题:本大题共4小题,共50分,解答时应写出文字说明、证明过程或演算步骤.11.(Ⅰ)24,4==b a ;(Ⅱ)0()(,)a f x ≤-∞+∞当时,的单调递增区间,无极值点.0()(,)a f x >-∞+∞当时,的单调递区间; ),()(a a x f +-的单调递减区间.∴极大值b a a a f +=-2)(,极小值b a a a f +-=2)(. 12.(Ⅰ)x y =;(Ⅱ)110()(,),()(,)k f x f x k k>-+∞-∞-当时,的单调递区间的单调递减区间; 110()(,),()(,)k f x f x k k<-∞--+∞当时,的单调递区间的单调递减区间.(Ⅲ)1001≤<<≤-k k 或.13.(Ⅰ)415≤m ; (Ⅱ)252><a a 或.14.(I )81600252++-=x xx T ; (II )(元)时,件当800)(16max ==T x .。

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限时规范训练(练速度、练规范、练技能)必修 5 Unit 1 (1)必修 5 Unit 2 (4)必修 5 Unit 3 (7)必修 5 Unit 4 (11)必修 5 Unit 5 (14)选修 6 Unit 1—2 (18)选修 6 Unit 3—5 (21)必修 5 Unit 145分钟满分100分一、单项填空1. Lully has some knowledge of how the flower should be raised, but I have .A. notB. no notC. noneD. neither2. She remembered putting that cheque in a book on the shelf, so she ordered all the books to her.A. to bringB. bringingC. being broughtD. to be brought3. ---I’ll go on Monday by the slow train. ---You may just wait till Tuesday and go on the fast one.A. as wellB. rather thanC. much betterD. or else4. He hung about the entrance all day, a chance to speak to the director.A. hopingB. hoping toC. hoping ofD. hoping for5. It’s useless to persuade him to get rid of that habit; he just can’t make .A. trying; itB. to try; thatC. trying; thatD. in trying; it6. Everybody in his office him his big house.A. enviesB. admiresC. appreciatesD. likes7. I promise that you have five dollars if you clean all the windows.A. willB. wouldC. shallD. should8. The child was abandoned in the forest, where he was the mercy of wild beasts.A. onB. byC. inD. at9. ---How far apart do they live? --- I know, they live in the same neighborhood.A. As long asB. As far asC. As well asD. As often as10. I will come to your birthday party John is invited.A. so thatB. except thatC. on condition thatD. in that11. Just as sound travels through the air waves, electricity travels through the air in radio waves.A. what is calledB. which is calledC. what it calledD. which it is called12. According to the survey, it is almost that the government will lose the next election.A. sureB. certainC. exactD. doubtful13. The wealth of a country should be measured the health and happiness of its people aswell as the material goods it can produce.A. in terms ofB. by meansC. in place ofD. in line with14. You have hurt a bone in your back. I’d like to send you to hospital for an X-ray.A. mayB. canC. shouldD. would15. The general director of the project that the work should be started at once.A. arrangedB. instructedC. orderedD. directed二、完形填空As a teenager I was a productive letter writer. One letter I wrote 16 to 56 pages, and was 17 of the extremely ordinary details of daily life. It could only have been of interest to me, and maybe, the receiver. But them 18 , it might become attractive just because of the 19 details it recorded.Official records of history -books and pictures -may record important events 20 they were always intended to have a large audience. 21 , letters tend not to be modified (修饰), often true to 22 . They were, after all, 23 for just one pair of eyes.Sadly, however, we don’t write proper letters any more. Not only that, but, it’s a fact that nowadays hardly anyone 24 to the letters they have received. We think only about 25 living and throwing things out. Who among us will leave any helpful papers for historians? In researching a book, I would never have found out that, in the late 19th century, showy waistcoats caused a lot of 26 , if I hadn’t read the 27 . One fellow even wrote to a friend to say that if he were to ever meet a man wearing a kind of showy clothes he 28 shoot the man on sight.What a 29 if such details were lost due to lack of letter writing and a little saving. I think we should all 30 to write at least one letter a month and try to 31 those we get. 32 good emails should be printed out and kept, too. Emails may not leave an example of our handwriting, but 33 they allow us to record our lives. Some years ago, a friend 34 me with a bundle of letters that I’d sent her since I was 16. They gave a wonderful 35 of my teenage. History will need to know this, I’m sure.16. A. ran B. led C. referred D. turned17. A. fond B. covered C. full D. filled18. A. personally B. historically C. politically D. commonly19. A. useless B. important C. unimportant D.meaningful20. A. so that B. while C. where D. because21. A. Therefore B. Besides C. Otherwise D. However22. A. life B. fact C. nature D. themselves23. A. used B. intended C. tried D. limited24. A. holds out B. holds on C. holds back D. holds up25. A. enriching B. making C. simplifying D. earning26. A. interest B. worry C. matters D. accidents27. A. letters B. newspapers C. stories D. magazines28. A. ought to B. need C. would D. must29. A. pity B. fun C. wonder D. danger30. A. have B. aim C. insist D. stick31. A. keep B. read C. destroy D. print32. A. Partly B. Probably C. Largely D. Especially33. A. at most B. at least C. little more than D. no more than34. A. presented B. returned C. showed D. brought35. A. opinion B. experience C. description D. report三、阅读表达Hello. It’s one of the first words we learn as babies, yet it’s one of the last ones we think to use as adults. That’s unfortunate, because saying hello is more than just saying hello -it is recognition of another’s worth. How might the world change -how might we change -if we mastered this word? To find out, I spent one month saying hello to every person I met. Here’s what I’ve learned.It can boost (促进) productivity. In one of the few studies ever done on this subject, Allan Allday, an assistant professor of special education at Oklahoma State University, had middle school teachers greet their students individually each morning. This exchange of greeting raised the kids’ productivity. School went from impersonal to personal, and that resulted in more class participation and better grades.Environments influence friendliness. One study found that people in the city were likely to kiss one hands with a stranger than those in the countryside. And, researchers say clear environments generally encourage more smiles and hellos than unpleasant ones. My experience was similar. Whatever the reason, my urban hellos were answered far less often than my rural one. Similarly, people in vacation spots, like the Jersey Shore, were far friendlier than those hurrying to work downtown.It’s a form of universal health insurance. It’s impossible to say hello without smiling. And smiling has been shown to lower blood pressure, relieve stress and boost happiness. Apparently, a smile creates a similar effect on the recipient (接受者).So maybe we can make the world a better place by . After a month of doing it, Ifeel lighter and more connected and I have a better sense of well-being.36. What does the author say about the adult according to Paragraph 1? (within 8 words)37. Which sentence in the passage is the closest in meaning to the following one?Teacher and students got friendlier so that the students became more active in learning and scored higher in tests.38. Fill in the blank in the fifth paragraph with proper words. (within 5 words)39. List three effects of smiling on health according to the text. (within 8 words)○1○2○340. Translate the underlined sentence in Paragraph 3 into Chinese.必修5Unit 11—5 CDADA 6—10 ACDBC 11—15 ABAAC 16—20 ACBCD 21—25 DABBC 26—30 BACAB31—35 ADBAC36. Adults seldom say hello. / Adults are not willing to say hello.37. School went from impersonal to personal, and that resulted in more class participation and better grades.38. saying hello to each other / greeting each other / saying hello39. ○1lowering blood pressure ○2relieving stress ○3boosting happiness40. 不管出于什么原因,我在城市打招呼得到的回应比在乡村少得多。

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