2019年成人高等学校招生全国统一考试
2019年英语成人高等学校招生全国统一考试及答案
2019年成人高等学校招生全国统一考试英语答案必须答在答题卡上的指定位置，答在试卷上无效一、语音知识：共5小题；每题1.5分，共7.5分。
在下列每组单词中，有一个单词的划线部分与其他单词的划线部分的读音不同。
找出这个词1.A.coat B.roadC.broadD.goal2.A.officialB.declareC.activeD.picture3.A.purseB.pureC.curiousD.cure4.A.hide B.likeC.timeD.give5.A.questionB.stationC.directionD.pollution二、词汇与语法知识：共15小题；每题1.5分，共22.5分。
从每小题的四个选择项中，选出最佳的一项。
6.He's a great player and I have a lot of respect_______him.A.ofB.inC.onD.for7.Don't forget toyour_____ school bag with you when you come here next time.A.bringB.deliverC.fetchD.take8.He was late for work this morning because he_____find his key.A.mustn'tB.wouldn'tC.couldn'tD.shouldn't9.I asked him to go to the art exhibition，but he said he had_____seen it.A.stillB.alreadyC.alsoD.often10.—Where's your mother，Helen?—She_____the flowers in the garden.A.watersB.is wateringC.wateredD.has watered11.The children and their parents had great fun_____games in the park.A.playingB.playC.playedD.to play12.There is only one student_____will surely pass the difficu lt test.A.whoseB.whichC.whomD.who13.一Do you like talking with your friends on the phone or thro ugh the Internet?一_____.I enjoy writing letters.A.NoneB.EitherC.NeitherD.Both14.She asked me_____I would like to go with her or not.A.howB.whenC.whetherD.where15.Before you leave the classroom，_____all the lights.A.turn upB.turn overC.turn toD.turn off16.If Mom looks out from the kitchen window，she_____us pla ying in the yard.A.is seeingB.will seeC.was seeingD.has seen17.一Can you stay here for a few more days?一_____,but I have to be home tomorrow.A.No，thank youB.I'm afraid notC.I'd love toD.No problem18.With a lot of work_____，Jerry had not me to go to the cinema with his daughter.A.doingB.having doneC.doneD.to do19.We're making good progress，_____we've still got along way to goA.butB.orC.soD.thus20.I hope you will have a_____week with us in China.A.pleasureB.pleasingC.pleasedD.pleasant三、完形填空：共15小题；每题2分，共30分。
2019年成人高考《高数一》考试真题(含解析)
学习攻略—收藏助考锦囊系统复习资料汇编考试复习重点推荐资料百炼成金模拟考试汇编阶段复习重点难点梳理适应性全真模拟考试卷考前高效率过关手册集高效率刷题好资料分享学霸上岸重点笔记总结注：下载前请仔细阅读资料，以实际预览内容为准助：逢考必胜高分稳过2019年成人高等学校招生全国统一考试专升本高等数学（一）第Ⅰ卷（选择题）一、选择题（1-10小题，每小题4分，共40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.当x→O时，x+x2+x3+x4为x的（）。
A.等价无穷小B.2阶无穷小C.3阶无穷小D.4阶无穷小2.limx→∞�1+2x�x=（）。
A.-e2B.-eC.eD.e23.设函数y=cos2x，则y′=（）。
A.2sin2xB.-2sin2xC.sin2xD.-sin2x4.设函数f(x)在[a,b]上连续，在(a.b)可导，f′(x)>0,f(a)f(b)<0，则在(a.b)内零点的个数为（）。
A.3B.2C.1D.05.设2x为f(x)的一个原函数，则f(x)=（）。
A.0B.2C.x2D.x2+C6.设函数f(x)=arctan x，则∫f′(x)dx=（）。
A.−arctan x+CB.−11+x2+CC.arctan x+CD.11+x2+C7.设I1=∫x2dx10,I2=∫x3dx110,I3=∫x4dx10，则（）。
A.I1＞I2＞I3B.I2＞I3＞I1C.I3＞I2＞I1D. I1＞I3＞I28.设函数z=x2e y，则∂z∂x�(1,0)=（）。
A.0B.12第 1 页，共 6 页2/25C.1D.29.平面x +2y −3z +4=0的一个法向量为（ ）。
A.{1,−3,4}B.{1,2,4}C.{1,2,−3}D.{2,−3,4}10.微分方程y ′′+(y ′)3+y 4=x 的阶数为（ ）。
A.1 B.2C.3D.4第Ⅱ卷（非选择题）二、填空题（11-22小题，每小题4分，共40分）11.lim x→0tan 2x x = 。
2019年全国成人高考数学试卷及答案
绝密★启用前2019年成人高等学校招生全国统一考试数学（文史财经类）第Ⅰ卷（选择题，共85分）一、选择题：本大题共17小题，每小题5分，共85分，在每小题给出的4个选项中只有一项是符合题目要求的.1.设全集=U {1,2,3,4}， 集合M={3,4} ，则=M C UA.{2，3}B.{2，4}C.{1，4} D .{1，2}2.函数x y 4cos =的最小正周期为 A.4π B.2π C. π D.π2 3.设 甲：0=b 乙：函数b kx y +=的图像经过坐标原点，则A 甲是乙的充分条件但不是必要条件B. 甲是乙的必要条件但不是充分条件C 甲是乙的充要条件D. 甲既不是乙的充分条件也不是乙的必要条件4.已知,21tan =α则)4tan(πα+= A.-3 B.31- C.31 D.3 5.函数21x y -=的定义域是A.{x x |≥-1}B. {x x |≤1}C. {x x |≤-1}D. {|x -1≤x ≤1}6.设,10<<x 则A. 1<x 22<B. 120<<xC.0log 21<x D.0log 2>x 7.不等式|21+x |21>的解集为 A. {|x 01<<-x } B. {|x 10-<>x x 或} C. {|x 1->x } D. {|x 0<x }8.甲、乙、丙、丁4人排成一行，其中甲、乙必须排在两端，则不同的排法共有A. 2种B. 4种C. 8种D.24种9.若向量),1,1(),1,1(-==b a 则=-b a 2321 A.(1，2) B.(1，-2) C.(-1，2) D .(-1，-2) 10.0213)2(161log -++=A.5B.4C.3D.211.函数542--=x x y 的图像与x 轴交于A 、B 两点，则|AB|=A.3B.4C.5D.612.下列函数中，为奇函数的是A. 32+-=x yB. xy 2-= C.32-=x y D.x y cos 3= 13.双曲线116922=-y x 的焦点坐标是 A. (-5，0) , (5，0) B.(0,7-) ,(0,7 ) C. (0，-5) , (0，5) D.)7,0(),7,0(-14.若直线01=-+y mx 与直线0124=++y x 平行，则m=A. -1B. 0C. 1D.215.在等比数列{n a }中，4a 65=a ，则7632a a a a =A.12B. 24C. 36D.7216.已知函数)(x f 的定义域为R, 且,14)2(+=x x f 则=)1(fA. 3B. 5C. 7D.917.甲乙各自独立地射击一次，已知甲射中10环的概率为0.9， 乙射中10环的概率为0.5，则甲乙都射中10环的概率为A. 0.2B. 0.25C. 0.45D.0.75二．填空题：本大题共4小题，每小题4分，共16分。
2019年成人高考全国统一考试专升本高等数学(二)试题及答案
2019年成人高等学校招生全国统一考试高等数学（二）第一部分 选择题（共40分）一、选择题：1~10小题，每小题4分，共40分。
1. lim x→+∞(1+2x )x=（ ） A. −e 2 B. −e C. e D. e 22. 设函数y =arcsinx ，则y ‘=（ ）A. √1−x 2B. √1−x 2C. −11+x 2D. 11+x 23. 设函数f(x)在[a,b]上连续，在(a,b)可导，f ‘(x )>0，f (a )f (b )<0，则f(x)在 (a,b)零点的个数为（ ）A. 3B. 2C. 1D. 04. 设函数y =x 3+e x ，则y （4）=（ ）A. 0B. e xC. 2+e xD. 6+e x 5. d dx ∫11+x 2dx =（ ） A. arctanx B. arccotx C.11+x 2 D. 06. ∫cos2x dx =（ ） A. 12sin2x +C B. −12sin2x +C C. 12cos2x +C D. −12cos2x +C7. ∫(2x +1)3dx =10（ ）A. −10B. −8C. 8D. 108. 设函数z =(x −y)10，则 ∂z ∂x =（ ）A. (x −y)10B. −(x −y)10C. 10(x −y)9D. −10(x −y)99. 设函数z =2(x,y )−x 2−y 2，则其极值点为（ ）A. (0,0)B. (−1,1)C. (1,1)D. (1,−1)10. 设离散型随机变量X 的概率分布为则a =（ ）A. 0.1B. 0.2C. 0.3D. 0.4第二部分 非选择题（共110分）二、填空题：11~20小题，每小题4分，共40分。
11. 当x →0时，f(x)与3x 是等价无穷小，则limx→0f(x)x = . 12. lim x→0e 2x −1x = .13. 设函数f (x )=2则f ’(1)= .14. 设x 2为f(x)的一个原函数，则f (x )= .15. 设函数y =lnsinx , 则dy = .16. ∫1x 2dx = . 17. √x√x= . 18. ∫(xcos 2x +2)dx =1−1 .19. 设函数z =e yx ，ð2zðxðy = . 20. 设函数z =sinx ∙lny ，则dz = .三、解答题21~28题，共70分21. 计算limx→∞x 2−x 2x 2+1.22. 设函数f (x )=x 1+x 2，则f ’(x ).23. 计算23.24. 计算∫1xln 3x +∞edx .25. 一个袋中有10个乒乓球，其中7个橙色，3个白色，从中任取2个，设事件A 为“所取的2个乒乓球颜色不同”，求事件A 发生的概率P （A ）.26. 设函数f (x )=ax 3+bx 2+cx 在x =2处取得极值，点(1.−1)为曲线的拐点，求a,b,c .27. 已知函数f (x ) 的导函数连续，且f (1)=0，∫xf (x )dx =410，求∫x 2f ‘(x )dx 10.28. 设函数z =1x −1y ，证明：x 2ðz ðx +y 2ðz ðy =0.参考答案：一、选择题：1~10小题，每小题4分，共40分。
2019成人高考高起专《语文》真题和答案解析
2019年成人高等学校高起点招生全国统一考试语文本试卷分第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。
第Ⅰ卷(选择题,共40分)一、语文知识与语言运用。
(24分,每小题4分)1.下列词语中加点字的读音全都不相同的一组是（）A.乘．载乘．凉乘．风破浪B.传．媒传．奇不见经传．C.总括．训诂．沽．名钓脊D.法度．度．量审时度．势2.下列各组词语中没有错别字的一项是（）A.际遇辑录风雨飘遥B.蒙昧迷惘处之泰然C.豁达墨契简明厄要D.料俏羁伴似无忌惮3.依次填入下列横线处的词语，恰当的一项是（）远方山边的牧民帐篷上，升起了青烟，一群群牛羊如星星般在翠绿的草原上。
我想象中的长江源头“无人区”并没有出现，反倒是____田园牧歌的景象。
A.悠悠点缀一览B.袅袅连缀一派C.悠悠连缀一览D.袅袅点缀一派4.下列各句中加点成语的使用，不正确．．．的一项是（）A.可可西里这个昔日疮痍满目．．．．的盗猎场，如今动植物繁盛,已成为高原物种基因库。
B.近日，由于强降雨的作用，这个瀑布水量大涨，湍流直下，声势浩大，气壮山河．．．．。
C.中国经济的发展成就有目共睹．．．．，其智慧与经验颇值得其他发展中国家学习和借鉴。
D.整个舞台空灵而富有诗意，充满时尚感，似行云流水，出神人化，令人吸为观止．．．．。
5.下列各句中，有语病的一项是（）A.士者国之宝，人才尤其是高瑞人才，各地都争相延聘，呈现出越来越高的流动。
B.这一报告显示，高等职业教育就业率持续走高，毕业生对经济发展的贡献颇大。
C.改善民生是个动态过程，随着社会保障水平的提高，老百姓的要求也越来越高。
D.以智能化为核心的又一次工业革命正席卷而来，改变着人类生活的方方面面。
6.依次填入下面横线处的语句，顺序最恰当的一项是（）山里的樱花，远远望去，有娇羞地，也有，更多的则是，独自盛开，和周围的青山、树木、杂草，以及那些不知名的小花。
①掩映在树林里的②大片大片怒放的③开得格外灿烂④三三两两地散落着⑤相映成趣A.①③②⑤④B.②①③⑤④C.③①②④⑤D.③②④①⑤二、阅读下面文字。
2019年成人高等学校招生全国统一考试高起点数学试题与答案
7.【答案】A 【考情点拨】本题考查了绝对值不等式的知识点．
｛ 【应试解析】Ix ＋
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A. 9
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17.甲、乙各自独立地射占一 次，已知甲射中10环的概率为0.9 ，乙射中10环
的概率为0.5 ，则甲、乙都射中10环的概率是为
【】
A.0.2
B. 0.45
C.0.25
0.0. 75
第II卷（非选择题，共65分〉 二、填空题（本大题共4小题，每小题4分，共 16分〉
2019年成人高等学校招生全国统一考试高起点
数学
第I卷（选择题，共85分〉 一 、选择题〈本大题共 17 小题，每小题 5 分，共 85 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〉
l.设全集U=={l, 2, 3，针，集合＼1== {3, 4｝，则CuM ==
【】
A. {2, 3}
3
1）－一（1,
-1）＝（寸，2).
222
2
10.【答案】D
【考情点拨】本题考查了指数函数与对数函数运算的知识点 ．
【应试解析】log 3 1+162 ＋（一 2）。 ＝ 0+4+1=5.
2019年成人高等学校招生全国统一考试高起点英语真题及答案
2019年成人高等学校招生全国统一考试高起点英语一、语音知识：共5小题；每题1.5分，共7.5分。
在下列每组单词中，有一个单词的划线部分与其他单词的划线部分的读音不同。
找出这个词。
1. A. coat B. road C. broad D. goal2. A. official B. declare C. active D. picture3. A. purse B. pure C. curious D. cure4. A. hide B. like C. time D. give5. A. question B. station C. direction D. pollution二、词汇与语法知识：共15小题；每题1.5分，共22.5分。
从每小题的四个选择项中，选出最佳的一项。
6. He's a great player and I have a lot of respect him.A. ofB. inC. onD. for7. Don't forget to your school bag with you when you come here next time.A. bringB. deliverC. fetchD. take8. He was late for work this morning because he find his key.A. mustn’tB. wouldn'tC. couldn’tD. shouldn't9.I asked him to go to the art exhibition, but he said he had seen it.A. stillB. alreadyC. alsoD. often10.—Where's your mother,Helen?——She the flowers in the garden.A.watersB.is wateringC.wateredD. has watered11. The children and their parents had great fun games in the park.A. playingB. playC. playedD. to play12. There is only one student will surely pass the difficult test.B. whichC. whomD. who13.—Do you like talking with your friends on the phone or through the Internet?—.I enjoy writing letters.A.NoneB.EitherC.NeitherD.Both14. She asked me I would like to go with her or not.A. howB. whenC. whetherD. where15. Before you leave the classroom, all the lights.A. turn upB. turn overC. turn toD. turn off16. If Mom looks out from the kitchen window, she us playing in the yard.B. will seeC. was seeingD. has seen17.—Can you stay here for a few more days?—, but I have to be home tomorrow.A.No,thank youB.I'm afraid notC.I’d love toD.No problem18. With a lot of work , Jerry had no time to go to the cinema with his daughter.A. doingB. having doneC. doneD. to do19. We' re making good progress, we have still got a long way to go.A. butB. orC. soD. thus20.I hope you will have a week with us in China.B. pleasingC. pleasedD. pleasant三、完形填空：共15小题；每题2分，共30分。
2019年成人高等学校招生全国统一考试专升本英语真题及答案
2019年成人高等学校招生全国统一考试英语试题一、语音知识（5分）。
在下列每组单词中。
有一个单词的划线部分与其他单词的划线部分的读音不同。
找出这个词。
1、在下列单词中，有一个单词的划线部分与其他单词的划线部分的读音不同，找出这个词。
（C）A、landB、lambC、fatherD、ladder2、在下列单词中，有一个单词的划线部分与其他单词的划线部分的读音不同，找出这个词。
（D）A、challengeB、cheapC、chooseD、character3、在下列单词中，有一个单词的划线部分与其他单词的划线部分的读音不同，找出这个词。
（A）A、sweatB、pleaseC、beatD、meat4、在下列单词中，有一个单词的划线部分与其他单词的划线部分的读音不同，找出这个词。
（B）A、rescueB、leagueC、pursueD、argue5、在下列单词中，有一个单词的划线部分与其他单词的划线部分的读音不同，找出这个词。
（D）A、actionB、sectionC、solutionD、question二、词汇与语法知识（15分）。
从每小题四个选择项中，选出最佳的一项。
6、There _____ no one to help me at this moment，I need to handle the work all by myself.（B）A、beB、beingC、to beD、been【解析】考查独立主格结构。
句意：现在没有人能够帮我，我需要独立完成这项工作。
后半句是一个完整的句子，不缺少成分，“there being +名词”在这里是独立主格结构，充当状语，故选B。
7、Mary took a part-time job last summer，but her parents were unhappy about _____ she did.（D）A、theseB、whichC、thatD、what【解析】考查宾语从句。
2019年成人高等学校招生全国统一考试高起点——语文
2019年成人高等学校招生全国统一考试高起点——语文2019年成人高等学校招生全国统一考试高起点——语文考试将会在全国范围内展开，这对于准备考试的考生来说是一个重要的里程碑。
本文将就2019年成人高等学校招生全国统一考试高起点——语文考试进行详细介绍和分析。
一、考试概况成人高等学校招生全国统一考试高起点语文考试是用来评判考生语文水平的重要考试之一。
考试内容包括听力理解、阅读理解、完形填空、语法填空、改错和写作等部分。
不同年份的考试难度有所不同，因此考生需要在备考的过程中了解最新的考试内容和要求。
二、听力理解听力理解是高起点语文考试的第一部分，也是相对较为简单的一部分。
考生需要听音频，然后根据听到的内容回答相应的问题。
这部分考试的重点在于考生的听力和理解能力。
三、阅读理解阅读理解是困扰很多考生的一部分，因为需要在有限的时间内阅读文章，并回答相关问题。
考生在备考过程中应该注重提高阅读速度和理解能力，同时，积累一定的阅读题型和技巧是非常重要的。
四、完形填空完形填空是考察考生语言逻辑和阅读能力的一部分。
考生需要根据上下文的语境和词义，选择合适的单词或短语来填写空缺处。
在备考过程中，考生需要练习大量的完型填空题目，熟悉各种常用的词汇和表达方式。
五、语法填空语法填空是考察考生语言基础的一部分。
考生需要根据上下文和语法规则，填写正确的词性或者词语。
在备考过程中，考生应该重点关注名词、动词、形容词等词法知识点，并进行积累和复习。
六、改错改错是考察考生语文运用能力的一部分。
考生需要根据所给的文章，找出错误的地方并进行修改。
这部分考试需要考生对语法、词义和逻辑有一定的把握，因此在备考过程中，考生应该注重积累相关的语法知识和做题技巧。
七、写作写作是高起点语文考试中的重要部分，也是评判考生综合能力的重要依据。
在写作部分，考生需要根据所给的题目进行分析和撰写，注意结构的完整性和语言的流畅性。
备考过程中，考生应该多进行写作训练，提高自己的表达能力和写作水平。
2019年成考高起点《数学》真题及答案
2019年成人高等学校招生全国统一考试高起点数学本试卷分第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。
第Ⅰ卷(选择题，共85分)一、选择题(本大题共17小题，每小题5分，共85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.设全集U={1,2,3,4}集合M={3,4}，则M C U =【】A.{2,3}B.{2，4}C.{1，2}D.{1，4}2.函数y=cos4x 的最小正周期为【】A.2π B.4π C.π D.π2 3.设甲：b=0；乙：函数y=kx+b 的图像经过坐标原点，则【】A.甲是乙的充分条件但不是必要条件B.甲是乙的充要条件C.甲是乙的必要条件但不是充分条件D.甲既不是乙的充分条件也不是乙的必要条件4.已知21tan =α.则=+)4tan(πα【】A.-3B.31-C.3D.315.函数21x y -=的定义域是【】A.{}1-≥x xB.{}1≤x xC.{}11≤≤-x x D.{}1-≤x x 6.设0<x<1，则【】A.0log 2>xB.120<<x C.0log 21<x D.221<<x 7.不等式2121>+x 的解集为【】A.{}10-<>x x x 或B.{}01<<-x xC.{}1->x x D.{}0<x x 8.甲、乙、丙、丁4人排成一行，其中甲、乙必须排在两端，则不同的排法共有【】A.4种 B.2种 C.8种 D.24种9.若向量a =(1，1)，b =(1，一1)，则=-b a 2321【】A.(1.2) B.(-1.2) C.(1，-2)D.(-1，-2)10.=-++0213)2(161log 【】A.2B.4C.3D.511.函数542--=x x y 的图像与x 轴交于A，B 两点，则|AB|=A.3 B.4 C.6 D.512.下列函数中，为奇函数的是【】A.xy 2-= B.y=-2x+3 C.32-=x y D.y=3cosx 13.双曲线116922=-y x 的焦点坐标是【】A.(0，-7)，(0，7)B.(-7，0)，(7，0)C.(0，-5)，(0，5)D.(-5，0)，(5，0)14.若直线01=-+y mx 与直线0124=++y x 平行，则m=【】A.-1B .0C.2D.115.在等比数列{}n a 中，若,654=a a 则=7632a a a a 【】A.12B.36C.24D.7216.已知函数()x f 的定义域为R ，且,14)2(+=x x f 则=)1(f 【】A.9B.5C.7D.317.甲、乙各自独立地射击一次，已知甲射中10环的概率为0.9，乙射中10环的概率为0.5，则甲、乙都射中10环的概率为【】A.0.2 B.0.45 C.0.25 D.0.75第Ⅱ卷(非选择题，共65分)二、填空题(本大题共4小题，每小题4分，共16分)18.椭圆1422=+y x 的离心率为_______。
2019年成人高等学校招生全国统一考试专升本英语试题
2019年成人高等学校招生全国统一考试专升本英语试题及答案第I卷（选择题，共125分）I .Phonetics(5 points)Directions：In each of the following groups of words, there are four underlined letters or let- ter combinations marked A, B, C and D. Compare the underlined parts and identify theone that is different from the others in pronunciation. Mark your answer byblackening the corresponding letter on the Answer Sheet.1. nd B. lamb C.father D. ladder2. A. challenge B. cheap C. choose D. character3. A. sweat B. please C. beat D. meat4. A. rescue B.league C. pursue D. argue5. A. action B. section C. solution D. questionII. Vocabulary and Structure(15 points)Directions: There are 15 incopiplete sentences in this section. For each sentence there are foiir choices marked A, B, C and D. Choose one answer that best completes the sen-tence and blacken the corresponding letter on the Answer Sheet.6.There no one to help me at this moment, I need to handle the work all by myself.A. beB. beingC. to beD. been7.Mary took a part-time job last summer, but her parents were unhappy about ____ she did.A. theseB. whichC. thatD. what8.I did not do well on the writing exam, for the topic to write on was unfamiliar_____ me.A. toB. forC.withD.about9.I can hardly distinguish the two girls, since they look quite ______.A. likeB. unlikeC. alikeD. likely10. You’d better speak loudly at the meeting ____ everyone can hear you.A. except thatB. such thatC. in thatD. so that11. Peter would _____ stay at home watching TV than go shopping with his mom.A. ratherB.quiteC. betterD.still12. By the time you return in two years, your hometown will ____ a new look.A. have taken onB. take onC. have been taken onD. be taken on13. Please make sure that your name is entered in the____ space when you fill out this form.A. vacantB. bareC. blankD. empty14. Reading aloud every day can be one of the most ____ ways to improve your spoken English.A. evidentB. effectiveC. favoriteD. favorable15. If Peter had told his teacher about his difficulty in math homework, she ____ him before the exam.A. helpsB.will helpC. would have helpedD. would help16.____ all the difficulties, the researcher continued her research.A. In case ofB. In spite ofC. Because ofD. Instead of17. The organizers of the conference have arranged hotel rooms for those students ___ from outof town.A. to comeB. comeC. comingD. to have come18. The job applicant was worried about the interview _____ he was well prepared.A. ifB. becauseC. whenD. though19. It was suggested that this hardworking girl ____ an example for other students.A. be setB. will be setC. could be setD. had been set20. Since computers were introduced, they ____ to be useful tools for people weak in math.A. had provedB. have provedC. will proveD. are provingIII. Cloze(30 points)Directions：For each blank in the following passage, there are four choices marked A, B, C and D.Choose the one that is most suitable and mark your answer by blackening thecorresponding letter on the Answer Sheet.In our online life, we need to use passwords frequently. We use passwords 21 e-mail, gaming sites, social networking sites, and other shopping sites. 22 , the passwords most people use are not very 23 and can easily be “broken" by others. In fact, the most commonly used passwords are so simple that it requires very 24 effort to figure them out. Can you guess 25 the most commonly used passwords are? They are: Names of baseball teams, birth dates of a family 26 , the year of a special sports event, the random numbers like 156468 ,27 the name of a friend, pet, favorite TV star, or band.There are programs 28 to break into people’s online accounts. These programs are 29 of trying every word in the English dictionary and the dictionaries 30 many foreign languages, in their effort to break into an account. 31 can even search words backward. Some will try32 words or words that are followed by numbers,33 school222. These programs can testmillions of passwords in a few minutes. So, you are advised to be careful about 34 passwords so that they will be hard to break. You are also advised not to make them 35 hard to remember. Meanwhile, you need to change them once in a while.21. A. to B. with C. by D. for22. A. However B. Therefore C. Moreover D. Besides23. A. natural B. safe C. strange D. clear24. A. minor B. small C. little D.tiny25. A. what B. who C. where D . which26. A. figure B. member C. creature D. character27. A. as close as B. as good as C. as dear as D. as well as28. A. formed B. shaped C. composed D. designed29. A. typical B. capable C. sure D. true30. A. from B. with C.of D. for31. A. They B.It C. That D. Those32. A. added B. gathered C. combined D. collected33. A. such as B. except for C. as for D.as of34. A. locating B. searching C. choosing D. tracking35. A. rather B. too C. far D. enoughIV. Reading Comprehension（60 points）Directions: There are five reading passages in Ulis part. Each passage is followed by four ques-tions. For each question there are four suggested answers marked A, B, C and D.Choose the best answer and blacken the corresponding letter on the Answer Sheet.Passage OneSound sleep occurs when one’s internal clock is regulated. Circadian rhythms （生理节奏）can become compromised quite easily. Many people with sleep troubles tend to vary bedtimes. To avoid this common problem, sleep sufferers should go to bed and wake up at the same time every day. To help improve circadian rhythms, sufferers should enjoy 15 minutes of sun exposure the first thing in the morning.A bedtime routine can help prevent insomnia （失眠）.One hour before bedtime, one should lower the lights and relax. Reading a book or listening to calm music can help prepare the body for a good night's sleep. Taking a warm, candlelit bath or drinking a cup of warm milk can also help you prepare for deep sleep at night.Stress can have a bad effect on the body and the ability to sleep. A daily exercise routine can help lower the body's stress naturally. One can also manage stress by writing diaries. Writing diaries can help people express their anxieties, plan for the future and improve sleep. Other ways to lower stress include deep breathing exercises and progressive muscle relaxation.The light sending out from computers, cellphones, tablets and televisions can cause sleep problems. Therefore, these items should be turned off at least an hour before bedtime. Additionally, lowering the backlight on these electronic devices earEer in the evening can helpyou fall asleep faster and stay asleep longer once bedtime arrives.A perfect bedroom invites sweet sleep. Most people sleep better in a cool, dark, and quiet room. Lower the temperature in the room to 16 ~ 20 degrees for a peaceful night' s sleep. A dark room can be accomplished by installing light blocking curtains or wearing a sleep mask. Noise can be reduced with either earplugs or a white noise machine. Finally, a comfortable mattress （床垫）and pillows are essential to a good night' s sleep.36.What is the passage mainly about?A.How to get a sound sleep.B. How to lower body stress.C. How to regulate internal clocks.D. How to manage anxieties.37.According to Paragraph 2, which of the following may lead to insomnia?A.Reading a book for relaxation before bedtime.B.Lowering lights one hour before bedtime.C.Drinking some warm milk before bedtime.D.Listening to rock music before bedtime.38. What can be done to reduce stress?A. Doing exercise every day.B. Making plans for the future.C. Writing about your sleep patterns.D. Learning to hold your breath.39. What is the perfect condition for sleep?A. A quiet room with flashing lights.B. A bright room with white curtains.C. A cool room with comfortable pillows.D. A dark room with electronic devices.Passage TwoTom was aged four but he was talking like a two-year-old baby. He was saying such things as “kick ball” and “want car”, and using lots of one-word sentences. He should have been saying some really long sentences and telling stories with them. He wasn’t. Something had gone terribly wrong.Quite a few children have what is called a“language delay”. For some reason they don’tlearn to speak as quickly as they should. Their friends shoot ahead and they’re left behind. As a result, they get very lonely. Nobody wants to talk to you if you can’t talk back.Can anything be done to help these children? Yes. They can go to see a speech therapist—a person who' s specially trained to work out what' s wrong and who knows how to teach language to children. This is what happened to Tom. The speech therapist played some games with him and heard how he talked. She made a recording of his speech, and chatted to his mom and dad about his background. They’d taken Tom to see a doctor, but the doctor hadn’t found anything wrong with him. He seemed perfectly normal in every way—except he just wasn’t talking.After Tom and his parents had gone home, the therapist listened carefully to the recording she’d made. Then she looked at a chart which showed how language developed in children aged two, three, and four. She could see Tom was a long way behind.The next step, she decided,was to teach Tom how to say some new sentences like " kick a red ball，'‘ and " the clown is kicking a ball. " Tom didn' t get the new sentences right straight away. But the therapist was very patient, and after a few more visits he started to make some progress.40.How did the author introduce the topic of this passage?A.By describing grammar errors made by kids.B.By sharing experiences of speech therapists.C.By using Tom’s case as an example.D.By stating his personal views to readers.41.What can be inferred from the passage about “language delay”?A.It can be prevented by doctors.B. It is seldom found among children.C. It can be improved with certain help.D. It may result from hearing problems.42.What did the speech therapist do to help Tom?A.She told others that Tom was normal in every way.B.She asked Tom to play with some other children.C.She made some recordings of his parents' s peech.D.She taught Tom new sentences in a patient way.43. What is the best title for the passage?A.What Can Doctors Do with Language Delay?B.What Can Be Done about Kids with Language Delay?C.How Can Language Delay Be Easily Detected?D.How Can Parents Prevent Kids from Language Delay?Passage ThreeOn a dry and cold Friday afternoon last October, Sharon Seliiie exchanged text messages with her daughter who was in college. They "chatted" back and forth, with the mom asking how things were going and the daughter answering positively followed by emoticons（表情符）showing smiles, b-i-g smiles and hearts.Later that night, her daughter attempted suicide.In the days that followed, it came to light that she’d hidden herself in her dorm, crying and showing signs of depression—a completely different reality from the one that she conveyed in texts and Facebook posts.As human beings, our only real method of connection is through real communication. Studies show that only 7% of communication is based on writing and speaking. The majority of 93% is based on body language. Indeed, it’s only when we can hear a tone of voice or look into someone’s eyes that we' re able to know when“I’m fine”doesn’t mean they’re fine at all.This is where social media gets risky.With modem technology, anyone can hide behind the text, the e-mail, or the Facebook post, projecting any image they want and creating a false image of their choosing. They can be whoever they want to be. And without the ability to receive body language, their audiences are none the wiser.This presents a paradox which doesn' t exist before. With all the powerful social technologies at our fingertips, we are more connected—and potentially more disconnected—than ever before.Every relevant metric （衡量标准）shows that we are interacting at a great speed and frequency through social media. But are we really communicating? With 93% of our communication context （语境）lost, we are now attempting to establish relationships and make decisions based on phrases or emoticons,which may or may not accurately represent the truth.44.Why does social media get risky according to the author?A. The users’ social connection is lost.B. The users’ messages may be ignored.C. The users' real emotion may be hidden.D. The users’ voices can hardly be heard.45.What phenomenon does the underlined word “paradox" （Paragraph 7）reflect?A.People can be both happy and unhappy.B.People can be both connected and disconnected.C.People can end up being both wise and stupid.D.People can form both true and false impressions.46. What is true about today' s communication through social media?A. It causes more health risks.B. It gives little communication context.C. It leads to better relationships.D. It improves the quality of interaction.47.What is the best title for the passage?A.Social Media and Its FunctionB. Social Media and Its AbusesC. Social Media and Its FutureD. Social Media and Its RisksPassage FourAlan Lakein, a time management expert, thinks that nothing is a total waste of time, including doing nothing at times. If you arrange things so that you find time to relax and “do nothing”, you will get more done and have more fun doing it.One of his clients, a space engineer, didn' t know how to "do nothing”.Every minute of his leisure time was scheduled with intense activities. He had an outdoor-activities schedule in which he switched from skiing to tennis. His girlfriend kept up with him in these activities, although she would have preferred just to sit by the fire and relax once in a while. Like too many people, he felt the need to be doing something all the time, for doing nothing seemed a waste of time. His " relaxing by the fire" consisted of playing chess, reading magazines, or checking emails.For an experiment, Alan asked him to “waste" his time for five minutes during one of their sessions together. What the engineer ended up doing was relaxing, sitting quietly and daydreaming. When he was finally able to admit that emotional reasons caused him to reject relaxing as a waste of time, he began to look more critically at that way of thinking. Once he knew that relaxing was a good use of time, he became less serious about being busy and started enjoying each activity.Previously he had been so busy doing that he had no time to have fun at anything. He began to do less and have more fun. When Alan saw the client about three years later, he still had as busy a schedule as ever, but he was able to balance his activity with relaxing so that he came back to work Monday morning not feeling tired out from a busy weekend butrefreshed.48.What did“doing nothing”mean to the space engineer at first?A. Outdoor activities.B. A waste of time.C. Few daily schedules.D. More family hours.49.What made the engineer reject relaxing?A. Social reasons.B. Family reasons.C. Emotional reasons.D. Physical reasons.50.What happened after the engineer learned "doing nothing"?A. He was not as busy as before.B. He began to enjoy each activity more.C. He started to do more of everything.D. He did not have as much fun as before.51.What can be inferred from the passage about “doing nothing”?A.It makes people enjoy more indoor activities.B.It enables you to have more work time.C.It serves to improve family relationship.D.It helps you do things more efficiently.Passage FiveSocrates is often referred to as one of the founders of Western philosophy, and yet he wrote nothing, established no school, and held no particular theories of his own. What he did do, however, was frequently ask the questions that interested him, and in doing so developed a new way of thinking. This method proceeds (展开)as a dialogue between opposing views , and it earned him many enemies in Athens, where he lived.Aa a young man, Socrates is believed to have studied natural philosophy, looking at the various explanations of the nature of the universe, but then became involved in the politics of the city-state and concerned with more down-to-earth moral issues, such as the nature of justice.However, he was not interested in winning arguments, or arguing for the sake of making money. Nor was he seeking answers or explanations. He was simply examining the basis of the concepts we apply to ourselves (such as "good" , "bad" , and "just" ) , for he believed that understanding what we are is the first task of philosophy.He was sentenced to death on charges of corrupting the young with bad ideas. But he alsohad many followers, and among them was Plato, who recorded Socrates' ideas in the written works, called dialogues, in which Socrates sets about examining various ideas.Socrates，central concern, then, was the examination of life, and it was his cruel questioning of people' s most valued beliefs (largely about themselves) that earned him his enemies—but he remained committed to his task until the very end. According to the account of his defense at his trial, Socrates chose death rather than face a life of ignorance：“The life which is unexamined is not worth living. ”52.What is true about Socrates?A.Socrates solved the problems of Western philosophy.B.Socrates tried to find answers to his questions.C.Socrates forced his enemies to accept his ideas.D.Socrates cared about the meaning of life.53.What is the most important task of philosophy according to Socrates?A. Understanding our true self.B. Examining some basic concepts.C. Challenging the views of enemies.D. Giving explanations for arguments.54.What is the passage mainly about?A. Socrates’ beliefs of philosophy.B. Socrates’ outlook on death.C. Socrates' influence on youths.D. Socrates’ questions about universe.55.What is the tone of the passage?A. Humorous.B. Bitter.C. Sympathetic.D. Objective.V. Daily Conversation(15 points)Directions：Pick out appropriate expressions from the eight choices below and complete the following dialogue by blackening the corresponding letter on the Answer Sheet.Receptionist: Good morning!Mr. Smith: Good morning! Today we are free for sightseeing. 56Receptionist: Okay. Have you ever been here before?Mr. Smith：No. 57Receptionist: Then , I suggest that you visit the Ancient Cultural Street.Mr. Smith:58Receptionist: Yes. The architecture is wonderfull. It represents the folk style of the Qing Dynasty.Mr. Smith: 59 Thank you very much.Receptionist:60 Have a good time!第II卷（非选择题，共25分）VI.Writing(25 points)Directions：For this part,, you are supposed to write an essay in English in 100 -120 words based on the following information. Remember to write it clearly.61.新学期伊始，你们班准备组织一场迎新晚会,让同学们熟悉起来。
2019成人高考高起专英语真题及答案
2019年成人高等学校高起点招生全国统一考试英语本试卷分第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。
第Ｉ卷(选择题，共105分)一、语音知识:共5小题;每题分,共分。
在下列每组单词中。
有一个单词的划线部分与其他单词的划线部分的读音不同。
找出这个词。
1. A. handsome D. land2. A. meat B. ready C. heat D. seat3. A. bottom B. colou C. Monday D. ton~4. A. billion B. lab C. table D. comb5. A. tooth B. month C. father D. method二、词汇与语法知识：共15小题；每题分，共分。
从每小题的四个选择项中，选出最佳的一项。
will phone his mother as soon as he in Kunming.A. arrivedB. arrivesC. will arriveD. iS arrivingyoung policeman asked her name was.A. whenB. whoC. whyD. what3. This song is very with young people.。
A. pleasantB. popularC. favouriteD. beautiful9. The family at a small hotel for the night.A. put upB. went upC. got upD. jumped up10.“We can't go out jin this weather.”said Bob,ou of the window.A. to have lookedB. lookedC. lookingD. to look'S go to the concert tonight. Mary..I have to help my mom with the housework.A. needn'tB. can'tC. mustn'tD. shouldn't~chose this coat in the end because ones were all too expensive.A. the othersB. anotherC. othersD. the othergot to the cinema late the heavy taffic.A. because of of C. according to D. except for14. David has decided football at the end of this season.A. give upB. giving upC. to give up given up, object of the game is to improve children's math skills.A.不填;theB. an;theC.不填;不填D. the;不填》16. arriving home she found her old friend alrendy there.B. For D. With17. He says he has the T-shirt, I've never seed him wear it.A. afterB. sinceC. although18. When Anna the room,a group of young men were talking eagerly round the table.A. entersB. has enteredC. was enteringD. entered19. -Do you mind if I open the window- .-A. Yes ,pleaseB. No,go aheadC. No. please don't ,you'd better do.20. A museum in the city centre next year.A. will be builtB. will builC. was builtD. built三、完形填空：共15小题;每题2分，共30分。
备考2020年成人高考复习资料-高起专2019年《语文、数学、英语》真题
2019年成人高等学校招生全国统一考试高起点语文本试卷分第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。
第Ⅰ卷(选择题，共40分)一、语文知识与语言运用。
(24分，每小题4分)1.下列词语中加点字的读音全都不相同．．．．．的一项是（）A.当．众当．真当．务之急B.哄．骗起哄．哄．堂大笑C.启蒙．蒙．蔽蒙．头转向D.折．合折．腾百折．不挠2.下列各组词语中没有．．错别字的一项是（）A.届时银幕运筹帷幄B.描摹深谙责无旁代C.决裂教唆文过是非D.熬战跨度铤而走险3.依次填入下面文字中横线处的词语，恰当的一项是（）木船在风浪中剧烈地摇晃着，那人却稳稳地站立着，就像一个的骑士，骑在一匹的野马上，任凭野马狂奔，他却。
A.技艺高超横行无忌一往无前B.英勇无畏横冲直撞如虎添翼C.勇往直前狂放不羁绝不妥协D.身怀绝技桀骜不驯泰然自若4.下列各句中加点成语的使用，不正确．．．的一项是（）A.随着建设步伐的加快，大剧院、科技馆、会展中心、金融城……一座座大楼在这里拔地而起．．．．。
B.我们要一鼓作气．．．．、越战越勇，为如期全面打赢脱贫攻坚战、全面建成小康社会作出新的更大贡献。
C.在当下的中国，电子商务正好赶上了技术进步和居民消费力提升的“双重风口”，可谓前途无量．．．．，大有可为。
D.由于“微信运动”特有的社交属性，人们越来越看重自己的运动步数，逐渐走出家门，无所不至．．．．地进行锻炼。
5.下列各句中，没有．．语病的一项是（）A.对这部小说的人物塑造，作者没有很好地深入生活、体验生活，凭主观想象加了一些不恰当的情节，却大大减弱了作品的感染力。
B.各级财政部门要增添科学管理水平，特别是对农村基础设施建设经费的管理，要做到心中有数，全盘考虑，周密安排。
C.我国西部陆海新通道，北接丝绸之路经济带，南连21世纪海上丝绸之路，在区域协调发展格局中具有重要战略地位。
D.这些牧民长期生活在马背上，他们随身携带的精美小刀，既可以用来宰杀、切割牛羊肉，肉烧熟了，又可以用它做餐具。
2019年成人高考专升本医学综合真题及答案
2019年成人高考专升本医学综合真题及答案2019年成人高等学校招生全国统一考试专升本医学综合试卷共120小题，满分150分，考试时间150分钟。
A型题：1-84小题，每小题1.25分，共105分。
在每小题给出的XXX五个选项中，请选出一项最符合题目要求的。
1.颈椎的特征性结构是什么？A。
横突肋凹B。
横突C。
棘突较长D。
横突孔E。
上、下关节突2.防止胫骨前、后移位的韧带是哪一个？A。
胫侧副韧带B。
腓侧副韧带C。
髌韧带D。
前、后交叉韧带E。
胭斜韧带3.通过膈食管裂孔的结构是哪一个？A。
膈神经B。
胸导管C。
内脏大神经D。
迷走神经E。
内脏小神经4.食管的第二个狭窄距中切牙的距离大约是多少？A。
15cmB。
35cmC。
25cmD。
40cmE。
45cm5.支气管镜检查时判断气管分叉的标志是什么？A。
右主支气管B。
声门裂C。
气管隆嵴D。
前庭裂E。
膜壁6.位于肾门处的结构是哪一个？A。
肾盂B。
肾大盏C。
肾小盏D。
肾柱E。
输尿管7.由四层腹膜构成的结构是哪一个？A。
小网膜B。
小肠系膜C。
大网膜D。
阑尾系膜E。
乙状结肠系膜8.维持子宫颈正常位置，防止子宫脱垂的主要韧带是哪一个？A。
子宫骶韧带B。
子宫阔韧带C。
子宫圆韧带D。
子宫系膜E。
子宫主韧带9.卵子受精常见的部位是哪一个？A。
输卵管壶腹部B。
输卵管漏斗部C。
输卵管峡部D。
输卵管壁内部E。
输卵管子宫部10.外耳门前方可摸到搏动的动脉是哪一个？A。
舌动脉B。
颞浅动脉C。
面动脉D。
上颌动脉E。
甲状腺上动脉11.下列属于腹主动脉发出的成对的脏支是哪一个？A。
卵巢动脉B。
脾动脉C。
膈下动脉D。
膈上动脉E。
腹腔干12.下列属于肝门静脉属支的是哪一个？A。
肾静脉B。
肝静脉C。
卵巢静脉D。
肠系膜下静脉E。
膀胱静脉13.腹部不成对的淋巴干是哪一个？A。
左腰干B。
右腰干C。
左支气管纵隔干D。
肠干E。
右支气管纵隔干14.沟通眼前房和眼后房的结构是哪一个？A。
虹膜角膜角B。
巩膜静脉窦C。
2019年成人高等学校招生全国统一考试附答案
2019年成人高等学校招生全国统一考试高起点语文本试卷分第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。
第Ⅰ卷(选择题，共40分)一、语文知识与语言运用。
(24分，每小题4分)1.下列词语中加点字的读音全都不相同的一项是（）A.当众当真当务之急B.哄骗起哄哄堂大笑C.启蒙蒙蔽蒙头转向D.折合折腾百折不挠2.下列各组词语中没有错别字的一项是（）A.届时银幕运筹帷幄B.描摹深谙责无旁代C.决裂教唆文过是非D.熬战跨度铤而走险3.依次填入下面文字中横线处的词语，恰当的一项是（）木船在风浪中剧烈地摇晃着，那人却稳稳地站立着，就像一个____的骑士，骑在一匹____的野马上，任凭野马狂奔，他却____。
A.技艺高超、横行无忌、一往无前B.英勇无畏、横冲直撞、如虎添翼C.勇往直前、狂放不羁、绝不妥协D.身怀绝技、桀骜不驯、泰然自若4.下列各句中加点成语的使用，不正确的一项是（）A.随着建设步伐的加快，大剧院、科技馆、会展中心、金融城……一座座大楼在这里拔地而起。
B.我们要一鼓作气、越战越勇，为如期全面打赢脱贫攻坚战、全面建成小康社会作出新的更大贡献。
C.在当下的中国，电子商务正好赶上了技术进步和居民消费力提升的“双重风口”，可谓前途无量，大有可为。
D.由于“微信运动”特有的社交属性，人们越来越看重自己的运动步数，逐渐走出家门，无所不至地进行锻炼。
5.下列各句中，没有语病的一项是（）A.对这部小说的人物塑造，作者没有很好地深入生活、体验生活，凭主观想象加了一些不恰当的情节，却大大减弱了作品的感染力。
B.各级财政部门要增添科学管理水平，特别是对农村基础设施建设经费的管理，要做到心中有数，全盘考虑，周密安排。
C.我国西部陆海新通道，北接丝绸之路经济带，南连21世纪海上丝绸之路，在区域协调发展格局中具有重要战略地位。
D.这些牧民长期生活在马背上，他们随身携带的精美小刀，既可以用来宰杀、切割牛羊肉，肉烧熟了，又可以用它做餐具。
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2019年成人高等学校招生全国统一考试数学（文史）试卷 第Ⅰ卷
一、选择题：本大题共17小题，每小题5分，共85分，在每小题给出的4个选项中只有一项是符合题目要求的.
1.设全集=U {1,2,3,4}， 集合M={3,4} ，则=M C U
A.{2，3}
B.{2，4}
C.{1，4} D .{1，2}
2.函数x y 4cos =的最小正周期为 A. 4π
B.2π
C. π
D.π2
3.设 甲：0=b ，乙：函数b kx y +=的图像经过坐标原点，则
A 甲是乙的充分条件但不是必要条件
B. 甲是乙的必要条件但不是充分条件
C 甲是乙的充要条件
D. 甲既不是乙的充分条件也不是乙的必要条件
4.已知,21tan =α则)4tan(π
α+=
A.-3
B.31
- C.31
D.3
5.函数21x y -=的定义域是
A.{x x |≥-1}
B. {x x |≤1}
C. {x x |≤-1}
D. {|x -1≤x ≤1}
6.设,10<<x 则
A. 1<x 22<
B. 120<<x
C.0log 2
1<x D.0log 2>x
7.不等式|21+x |21
>的解集为
A. {|x 01<<-x }
B. {|x 10-<>x x 或}
C. {|x 1->x }
D. {|x 0<x }
8.甲、乙、丙、丁4人排成一行，其中甲、乙必须排在两端，则不同
的排法共有
A. 2种
B. 4种
C. 8种
D.24种
9.若向量),1,1(),1,1(-==b a 则=-b a 2321
A.(1，2)
B.(1，-2)
C.(-1，2) D .(-1，-2) 10.0213)2(161log -++=
A.5
B.4
C.3
D.2
11.函数542--=x x y 的图像与x 轴交于A 、B 两点，则|AB|=
A.3
B.4
C.5
D.6
12.下列函数中，为奇函数的是
A. 32+-=x y
B. x
y 2-=
C.32-=x y
D.x y cos 3=
13.双曲线116922=-y x 的焦点坐标是 A. (-5，0) , (5，0) B.(0,7-) ,(0,7 )
C. (0，-5) , (0，5)
D.)7,0(),7,0(-
14.若直线01=-+y mx 与直线0124=++y x 平行，则m=
A. -1
B. 0
C. 1
D.2
15.在等比数列{n a }中，4a 65=a ，则7632a a a a =
A.12
B. 24
C. 36
D.72
16.已知函数)(x f 的定义域为R, 且,14)2(+=x x f 则=)1(f
A. 3
B. 5
C. 7
D.9
17.甲乙各自独立地射击一次，已知甲射中10环的概率为0.9， 乙射
中10环的概率为0.5，则甲乙都射中10环的概率为
A. 0.2
B. 0.25
C. 0.45
D.0.75
二．填空题：本大题共4小题，每小题4分，共16分。
18. 椭圆14
22=+y x 的离心率为______________ 19.函数12)(2+-=x x x f 在1=x 处的导数为______________
20．设函数b x x f +=)(，且3)2(=f ，则=)3(f ______________
21．从一批相同型号的钢管中抽取5根，测其内径，得到如下样
本数据（单位：mm ）; 110.8 109.4 111.2 109.5 , 109.1，则该样本的方差为______________2mm 。
三．解答题：本大题共4小题，共49分
22.（12分）已知{n a }为等差数列，且153+=a a
（1）求{n a }的公差d
（2）若21=a ，求{n a }的前20项和20S
23.（12分）
在△ABC 中，已知︒=75B ,2
2cos =C ， (1)求A cos (2)若BC=3，求AB
24.(12分)在平面直角坐标系xoy 中，已知⊙M 的方程为
,062222=-+-+y x y x ⊙O 经过点M
（1） 求⊙O 的方程
（2） 证明：直线02=+-y x 与⊙M, ⊙O 都相切
25.(13分)已知函数1122)(3+-=x x x f ，求)(x f 的单调区间和极值。
答案：
一.选择题
1.D
2.B
3.C
4.D
5.D
6.A
7.B
8.B
9.A
10.B 11.D 12.B 13.A 14.B 15.B 16.A 17.C
二．填空题
18.x sin 2- 19.4-=x y 20.4
3 21.7.0
三、解答题
22、
23、
24、
25、。