【2018汉中二模】陕西省汉中市2018届高三下学期第二次教学质量检测历史试题
汉中市2018届高三年级教学质量第二次检测考试
文综综合能力测试-历史部分
24．秦朝，三公九卿的官署在禁宫之内。东汉，尚书台被置于禁宫之内，三公九卿的官署被归于外朝移出了宫城。唐长安大明宫内，门下中书二省分列宣政门左右，三省长官议事于门下省之政事堂。明清官署除了军机处均被移到紫禁城之外。这一系列变化说明
A. 官制变化从根本上改变了城市布局
B. 皇帝私人事务与国家事务完全分离
C. 中央行政机构的完善官僚体制
D. 仍然体现出家国一体的特点
25．白居易在《盐商妇》中写道：“盐商妇，多金帛，不事田农与蚕绩……婿作盐商十五年，不属州县属天子。每年盐利入官时，少入官家多入私。官家利薄私家厚，盐铁尚书远不知。”这可以佐证当时
A. 商品经济的进步
B. 重农抑商政策名存实亡
C. 政治权力型经济弊端重重
D. 盐铁官营制度被废除
26．刘知几的《史通》标志着中国史学进入到一个更高的自觉阶段。他认为，官修史书致使个人的史学思想及见解不能充分发挥，因为史馆著作取禀宰相监修的意旨，取材为时所忌讳的，都要删去；主张写史应当“直书”，反对歪曲史实，做一个正直的史家应该有“宁为兰摧玉折，不作瓦砾长存”的气概。上述材料反映刘知几的史学观点最准确的是
A．反对官修史书，提倡私家修史 B．修史要有创见，禀承史家气节
C．注重史料实证，还原历史真相 D．写史要直书善恶，批判春秋笔法
27．明清之际，明朝官员、百姓盲目尽忠现象很普遍，官员如史可法、黄道周，百姓如扬州、嘉定、江阴军民，尽忠的形式越来越惨烈，但并未能挽救明朝的灭亡。这从侧面反映出A．儒学变革势在必行 B．科举制走向没落
C．小农经济的狭隘性 D．封建制度的腐朽
28．原产于中国四川的岷江百合因为其高贵美丽的气质，被人们赞为“帝王百合”。近代由英国人欧内斯特·亨利·威尔逊引入欧洲等地，为欧洲和日本带来众多的经济价值。相比于欧日，近代的中国对此却视而不见。由此可见
A. 近代中国的花卉市场遭到帝国主义的垄断
B. 欧洲大举对华资本输出
C. 中国近代民族资本主义缺乏市场前瞻性和商机意识
D. 生物工程技术的落后导致了中国无力与欧日竞争花卉产业
29．新文化运动的倡导者不同程度的讲过，他们完全承认孔子的历史地位,只是反对以“孔子之道”统一当代中国人。特别是胡适晚年一再指出，他从不贬低孔子和儒学的正当地位。
这可以从一个侧面反映出新文化运动
A. 否定中国传统文化
B. 对传统文化的理性认知
C. 肯定中国传统文化
D. 无力实现民众的思想解放
30．1950-1952年，为巩固新中国，人民政府发动了抗美援朝、镇压反革命、土地改革三大运动，采取了没收官僚资本，稳定物价等措施，表明这一时期社会主要矛盾是
A．工农大众同资产阶级的矛盾
B．先进的社会制度同落后的生产力之间的矛盾
C．人民对美好生活的需求和发展不平衡不充分之间的矛盾
D．中国人民同帝国主义、封建残余势力之间的矛盾
31．民政部曾公布了首批300名著名抗日英烈与英雄群体名录。下图为该名录构成示意图从中可得到的正确认识是
A. 抗日民族统一战线的最终形成
B. 全民族的浴血奋战是抗战胜利的基础
C. 日本法西斯的罪行罄竹难书
D. 中国共产党是抗战胜利的中流砥柱
2018北京各城区高三二模英语分类汇编--完形填空
2018北京各城区高三二模英语分类汇编--完形填空 【西城二模】 阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。 Be Cool...Stay in School! In the eighth grade, I was student-body president of Erwin Middle School in Asheville. I considered t h i s q ui t e an16s i nc e th e re we re ov e r 1,000 s t ud en t s i n t h e s ch o ol. A t t he e nd of the year, I was asked to make a speech at the ceremony where my class was 17 to high school. I knew this had to be more than just the brief comments a student might18 give.We’re the c l a s s o f M i l l e n n i u m(千禧年),19I w a n t e d m y s p e e c h t o b e a s s p e c i a l a s w e w e r e. I spent several nights lying in bed, 20 about what to say. Many things crossedmy mind, but none of them 21 all my classmates. Then one night, it 22 me. Erwin High School has the highest 23 rate of any high school in our county. What better goal could we have than for every single one of us to24 ? The speech I gave on graduation day was only 12 minutes long, but what it started was 25 .When I announced the challenge to my classmates, the entire audience, including the parentsand teachers, broke into applause. As I showed the personalized certificates and signs each student would get, I could 26they were really excited. I’d had no idea my challenge would bring this kind of27 . Throughout the summer, I worked on developing a program to carry our 28 into high school. I gave speeches to local clubs and groups. I also 29 a “Dropout Patrol”, made up of students who would be willing to help and support other students during bad times. Then word began to 30 about our challenge. I appeared on local television, and calls started coming in from everywhere. Businesses are throwing their 31 behind us. We have banks, furniture stores, restaurants and more where we can get discounts for our entire family when we show our “Dropout Patrol” ID cards. All this was32 , because we are just starting a difficult four-year journey, but we have already made a significant 33 . Last year,13 kids dropped out of the freshman class. So far this year, not a single person who signed the commitment has34 , and the “Dropout Patrol”has become the largest organized group in the school. The Erwin High “Committed Class of Millennium” would like to encourage your class to start a 35 like ours. Wouldn’t it be greatif the entire class of Millennium, nationwide, had a 100 percent graduation rate? 16. A.intension B. honor C. enjoyment D. advantage 17. A.invited B. transformed C. promoted D. introduced 18. A. normally B. constantly C. completely D. gradually 19. A. but B. for C. or D. so
南京市2018届高三数学考前综合题(教师)(含答案)
南京市2018届高三数学考前综合题 一．填空题 1．已知l ，m 是空间两条不重合的直线，α，β是两个不同的平面．给出下列命题： ①若l ∥α，l ∥m ，则m ∥α； ②若l ?α，m ?β，α∥β，则l ∥m ； ③若l ?α，m ?β，l ⊥m ，则α⊥β； ④若α⊥β，l ⊥α，m ⊥β，则l ⊥m ． 其中是真命题的有 ．（填所有真命题的序号） 【答案】④． 【说明】考查基本的直线与直线，直线与平面，平面与平面基本位置关系的判断． 2．已知函数f (x )＝3sin(x ＋θ)＋cos(x －θ)为偶函数，θ∈[0，π]，则角θ的值为 ． 【答案】2π 3 ． 【提示】因为f (x )＝3sin(x ＋θ)＋cos(x －θ)为偶函数，所以f (x )＝f (－x )恒成立， 即3sin(x ＋θ)＋cos(x －θ)＝3sin(－x ＋θ)＋cos(－x －θ) 展开并整理得(3cos θ＋sin θ)sin x ＝0恒成立． 所以3cos θ＋sin θ＝0，即tan θ＝－3， 又θ∈[0，π]，所以θ＝2π 3 ． 【说明】本题考查函数的奇偶性，以及三角恒等变换，这类问题也可以利用特殊值代入建立方程求解． 3．在平面直角坐标系xOy 中，过抛物线x 2＝4y 焦点的直线l 交抛物线于M ，N 两点，若抛物线在点M ，N 处的切线分别与双曲线C 2：x 2a 2－y 2 b 2＝1(a ＞0，b ＞0)的两条渐近线平行，则双曲线的离心率为 ． 【答案】2． 【提示】由双曲线：x 2a 2－y 2b 2＝1(a ＞0，b ＞0)的渐近线方程y ＝±b a x ， 可得两条切线的斜率分别为±b a ， 则两条切线关于y 轴对称，则过抛物线C 1：x 2＝4y 焦点(0，1)的直线l 为y ＝1， 可得切点为(－2，1)和(2，1)，则切线的斜率为±1， 即a ＝b ，于是e ＝2． 【说明】本题考查抛物线、双曲线的简单几何性质，要能通过分析得到直线l 为y ＝1，这是本题的难点． 4．已知点P 是△ABC 内一点，满足AP →＝λAB →＋μAC → ，且2λ＋3μ＝1，延长AP 交边BC 于点D ，BD ＝2DC ，则λ＋μ＝ ． 【答案】3 8 ． 【提示】因为BD ＝2DC ，所以AD →＝13AB →＋23 AC →
2020届北京市丰台区高考英语二模试卷
高考英语二模试卷 题号I II III IV V 总分 得分 一、阅读理解（本大题共15小题，共30.0分） A At Beaver Creek，The Extraordinary Awaits You Are no two snowflakes alike？The snowflakes we see in the winter are most likely completely unique from one other． Beaver Creek is a great place to experience the beauty of the snow，with programs for everyone-from children，teens，and women-only lessons to small groups and private-guided experiences． First Track，from Beaver Creek Reserve，lets you be the first on the mountain，with an adventure that begins at 7：30 a．m．when you are met by ski professionals and taken on a private，guided tour-before the mountain is open to the public．Once you have skied，you are treated to a delicious breakfast at Allie's Cabin． If you are looking for a higher level of comfort there is the White Carpet Club，from Beaver Creek Reserve．Located in the heart of Beaver Creek Village，it maximizes your time on the mountain by streamlining your access to it．At the club，there are private lockers and boot dryers，along with preferred self-parking and a slope-side ski waiter．A receptionist can assist with lift tickets，pass purchases，dinner reservations，and activity recommendations． Of course，there is more to explore during the winter in Beaver Creek as well．There is ice skating，snowshoeing，shopping，and spas-you name it，Beaver Creek has it．It is the perfect place to take advantage of the snow and be in the moment，in the mountains，together．
2018年北京市朝阳区高三二模英语试题
北京朝阳区高三年级二模英语 2018.5 （考试时间100分钟满分120分) 本试卷共10页。考生务必将答案答在答题卡上，在试卷上作答无效。 第一部分：知识运用（共两节，45分） 第一节单项填空（共15小题；每小题1分, 共15分）从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 例：It’s so nice to hear from her again. ______, we last met more than thirty years ago. A. What’s more B. That’s to say C. In other words D. Believe it or not 答案是D。 1. Come here, Mary. If you stand at this angle, you ______ just see the sunset. A. must B. need C. can D. should 2. The book is now out of print, ______ it can easily be borrowed from libraries. A. and B. for C. so D. but 3. ______ an opposing idea effectively, you can use the following words and phrases. A. To express B. Expressing C. Expressed D. Being expressed 4. Sometimes tests are needed ______ doctors discover exactly what’s wrong with your body. A. since B. before C. although D. if 5. It gives us great delight ______ Chinese science fictions are becoming increasingly popular. A. how B. what C. that D. why 6. The boy is having a fever. You’d better damp a towel and lay it ______ his forehead. A. across B. within C. through D. beyond 7. Just an hour ago he told me on the phone that he ______ home right after his work. A. has come B. comes C. came D. would come 8. We really appreciate our learning environment, ______ we can have direct communication. A. whom B. which C. where D. when 9. ______ the difference between the two findings is one of the worst mistakes you’ve made. A. Ignored B. Ignoring C. To ignore D. Having ignored 10. ––You seem to be familiar with this city. —I ______ here for three years. It’s so great to be back. A. lived B. had lived C. have lived D. live 11. I wish I ______ photography then. If so, I could give you a hand at present. A. studied B. had studied C. have studied D. will study 12. The girl’s eyes brightened when she saw the birthday present she ______. A. would promise B. had promised C. would be promised D. had been promised 13. If you leave this application form and go to another website, you will lose ______ you have already filled out on this form. A. whatever B. whoever C. wherever D. whenever 14. In the library you can use your own computer to connect to Wi-Fi specially _____ for readers. A. preparing B. to prepare C. prepared D. prepare 15. ––The small restaurant is always crowded in every part. ––That’s ______ it has a unique dining environment and quite a few wonderful dishes. A. why B. because C. where D. when 第二节完形填空（共20小题；每小题1.5分，共30分）阅读下面短文，掌握其大意，从每题所给
江苏省南京市2018届高三年级第三次模拟考试数学试题
市2018届高三年级第三次模拟考试 数 学 2018.05 注意事项： 1．本试卷共4页，包括填空题（第1题~第14题）、解答题（第15题~第20题）两部分．本试卷满分为160分，考试时间为120分钟． 2．答题前，请务必将自己的、学校、班级、学号写在答题纸的密封线．试题的答案写在答题纸．．．上对应题目的答案空格．考试结束后，交回答题纸． 一、填空题（本大题共14小题，每小题5分，计70分. 不需写出解答过程，请把答案写在答题纸的指定 位置上） 1．集合A ＝{x| x 2 ＋x －6＝0}，B ＝{x| x 2 －4＝0}，则A ∪B =▲________． 2．已知复数z 的共轭复数是－z ．若z (2－i)＝5，其中i 为虚数单位，则－z 的模为▲________． 3．某学校为了了解住校学生每天在校平均开销情况，随机抽取了500名学生，他们的每天在校平均开销都不低于20元且不超过60元，其频率分布直方图如图所示，则其中每天在校平均开销在[50，60]元的学生人数为▲________． 4．根据如图所示的伪代码，可知输出S 的值为▲________． 5．已知A ，B ，C 三人分别在连续三天中值班，每人值班一天，那么A 与B 在相邻两天值班的概率为▲________． 6．若实数x ，y 满足? ????x －y －3≤0，x ＋2y －5≥0，y －2≤0，则y x 的取值围为▲________． 7. 已知α，β是两个不同的平面，l ，m 是两条不同的直线，有如下四个命题： ①若l ⊥α，l ⊥β，则α∥β； ②若l ⊥α，α⊥β，则l ∥β； ③若l ∥α，l ⊥β，则α⊥β； ④若l ∥α，α⊥β，则l ⊥β． 其中真命题为▲________（填所有真命题的序号）． S ←1 I ←1 While I ＜8 S ←S ＋2 I ←I ＋3 End While Print S (第3题图) (第4题图)
2018北京高三二模英语语法单选汇总及答案.doc
2018北京高三二模单选汇总 2018海淀二模 1. —Excuse me, sir. Can you spare me a dollar _____ I can buy this book? —Sure, no problem. A. for B. so C. but D. or 2. I need help now! I have to fix a leaking pipe in my bathroom but I’m not sure _____ to begin. A. what B. which C. where D. when 3. Personally speaking, _____ the grand blueprint into reality is a long process. A. turning B. turn C. turned D. having turned 4. I _____ up my mind what I was going to say in the seminar, but it was cancelled. A. have made B. had made C. was making D. would make 5. You don’t need an invitatio n to help others. Give help ____ you are asked. A. if B. as C. though D. before 6. By now 516 Confucius Institutes _____ in 142 countries and regions, according to the ConfuciusInstitute Headquarters. A. founded B. would found C. have been founded D. had beenfounded 7. The stadium _____ stands a theatre will be reconstructed. A. beside which B. for which C. when D. which 8. 40 grams of meat per day is _____ people should consume in order to stay fit. A. that B. why C. how D. what 9. Dream of the Red Chamber is believed to be semi-autobiographical, _____ the fortunes of Cao’sown family. A. mirrored B. to mirror C. mirroring D. having mirrored 10. When I was small, my mom _____ read me stories at night. A. could B. should C. might D. would 11. He messed the project up, but he behaved as if nothing ________. A. had happened B. happened C. would happen D. would have happened 12. ________ some people criticize graffiti for being ugly and destructive, those graffiti lovers stillsee it as real art. A. As B. While C. Once D. Until 13. ---How was your vacation in Seattle? ---Pretty good. In the evenings I ________ to pubs to enjoy beer. A. have gone B. go C. had gone D. went 14. _______ naturally by the skin when exposed to sunlight, Vitamin D is needed for healthy bones, teeth and muscles. A. Making B. To make C. Made D. Make 15. This view is common _____ all sections of the community. A. across B. above C. around D. along 1-5 BCABD 6-10 CADCD 11-15 ABDCA
2018北京市朝阳区高三英语二模的试卷和答案
2018年北京市朝阳区高三二模试卷 英语 2018.5 （考试时间100分钟满分120分) 本试卷共10页。考生务必将答案答在答题卡上，在试卷上作答无效。 第一部分：知识运用（共两节，45分） 第一节单项填空（共15小题；每小题1分, 共15分）从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 例：It’s so nice to hear from her again. ______, we last met more than thirty years ago. A. What’s more B. That’s to say C. In other words D. Believe it or not 答案是D。 1. Come here, Mary. If you stand at this angle, you ______ just see the sunset. A. must B. need C. can D. should 2. The book is now out of print, ______ it can easily be borrowed from libraries. A. and B. for C. so D. but 3. ______ an opposing idea effectively, you can use the following words and phrases. A. To express B. Expressing C. Expressed D. Being expressed 4. Sometimes tests are needed ______ doctors discover exactly what’s wrong with your body. A. since B. before C. although D. if 5. It gives us great delight ______ Chinese science fictions are becoming increasingly popular. A. how B. what C. that D. why 6. The boy is having a fever. You’d better damp a towel and lay it ______ his forehead. A. across B. within C. through D. beyond 7. Just an hour ago he told me on the phone that he ______ home right after his work. A. has come B. comes C. came D. would come 8. We really appreciate our learning environment, ______ we can have direct communication. A. whom B. which C. where D. when 9. ______ the difference between the two findings is one of the worst mistakes you’ve made. A. Ignored B. Ignoring C. To ignore D. Having ignored 10. ––You seem to be familiar with this city. —I ______ here for three years. It’s so great to be back. A. lived B. had lived C. have lived D. live 11. I wish I ______ photography then. If so, I could give you a hand at present. A. studied B. had studied C. have studied D. will study 12. The girl’s eyes brightened when she saw the birthday present she ______. A. would promise B. had promised C. would be promised D. had been promised 13. If you leave this application form and go to another website, you will lose ______ you have already filled out on this form. A. whatever B. whoever C. wherever D. whenever 14. In the library you can use your own computer to connect to Wi-Fi specially _____ for readers. A. preparing B. to prepare C. prepared D. prepare 15. ––The small restaurant is always crowded in every part. ––That’s ______ it has a unique dining environment and quite a few wonderful dishes. A. why B. because C. where D. when
江苏省南京市、盐城市2018届高考第二次模拟考试数学试题-有答案
南京市、盐城市2018届高三年级第二次模拟考试 数学 注意事项： 1．本试卷共4页，包括填空题（第1题～第14题）、解答题（第15题～第20题）两部分．本试卷满分为160分，考试时间为120分钟． 2．答题前，请务必将自己的姓名、学校、班级写在答题纸上，试题的答案写在答题纸上对应题目的答案空格内．考试结束后，交回答题纸． 参考公式： 一、填空题（本大题共14小题，每小题5分，计70分，不需写出解答过程，请把答案写在 答题纸的指定位置上） 1．函数f(x) =lg(2 -x)的定义域为 ▲ ． 2．已知复数z 满足 12z i =1，其中i 为虚数单位，则复数z 的模为 ▲ ． 3．执行如图所示的算法流程图，则输出口的值为▲ ． 4．某学生5次数学考试成绩的茎叶图如图所示，则这组数据的方差为 ▲ ． 5.3名教师被随机派往甲、乙两地支教，每名教师只能被派往其中一个地方，则恰有2名教师被派往甲地的概率为__▲ ． 6．已知等差数列 的前，l 项和为品．若S 15 =30，a 7=1，则S 9的值为▲ ．
7．在△ABC 中，角A ，B ，C 所对的边分别为a ，b ，c ．若bsinAsinB 十acos 2B - 2c ，则a c 的值为 ▲ ． 8．在平面直角坐标系xOy 中，双曲线C ：22 21y x b -=(b>0)的两条渐近线与圆O ：x 2+y 2 =2 的四个交点依次 为A ，B ，C ，D.若矩形ABCD 的面积为b ，则b 的值为 ▲ ． 9．在边长为4的正方形ABCD 内剪去四个全等的等腰三角形（如图1的正四棱锥S-EFGH （如图2），则正四棱锥S-EFGH 的体积为 ▲ ． 10．已知函数f(x)是定义在R 上的偶函数，且当x ≥0时，f(x)=x 2+x ．若f(a)+f(-a)<4 ，则实数a 的取值范围为 ▲ ． 11．在平面直角坐标系xOy 中，曲线y=1 m x +（m>0）在x=l 处的切线为l ，则点（2，-1）到直线，的距离的最大值为▲ ． 12．如图，在△ABC 中，边BC 的四等分点依次为D ，E ，F.若2AB AC =uu u r uuu r g ，5AD AF =uuu r uuu r g ，则AE 长为 ▲ ． 13.在平面直角坐标系xOy 中，已知A ，B 为圆C ：(x+4)2+(y-a)2=16上两个动点，且．若直线l:y= 2x 上存在唯一的一个点P ，使得 ，则实数a 的值为 ▲ ． 14．已知函数f(x) , t ∈R ．若函 数g(x)=f(f(x))-1）恰有4个不同的零点，则t 的取值范围为 ▲ ． 二、解答题（本大题共6小题，计90分，解答应写出必要的文
2018北京高三二模英语语法单 选汇总及答案
2018北京高三二模单选汇总2018海淀二模 1. —Excuse me, sir. Can you spare me a dollar _____ I can buy this book? —Sure, no problem. A. for B. so C. but D. or 2. I need help now! I have to fix a leaking pipe in my bathroom but I’m not sure _____ to begin. A. what B. which C. where D. when 3. Personally speaking, _____ the grand blueprint into reality is a long process. A. turning B. turn C. turned D. having turned 4. I _____ up my mind what I was going to say in the seminar, but it was cancelled. A. have made B. had made C. was making D. would make 5. You don’t need an invitation to help others. Give help ____ you are asked. A. if B. as C. though D. before 6. By now 516 Confucius Institutes _____ in 142 countries and regions, according to the Confucius Institute Headquarters. A. founded B. would found C. have been founded D. had been founded 7. The stadium _____ stands a theatre will be reconstructed. A. beside which B. for which C. when D. which 8. 40 grams of meat per day is _____ people should consume in order to stay fit. A. that B. why C. how D. what 9. Dream of the Red Chamber is believed to be semi-autobiographical, _____ the fortunes of Cao’s own family. A. mirrored B. to mirror C. mirroring D. having mirrored 10. When I was small, my mom _____ read me stories at night. A. could B. should C. might D. would 11. He messed the project up, but he behaved as if nothing ________. A. had happened B. happened C. would happen D. would have happened 12. ________ some people criticize graffiti for being ugly and destructive, those graffiti lovers still see it as real art. A. As B. While C. Once D. Until 13. ---How was your vacation in Seattle? ---Pretty good. In the evenings I ________ to pubs to enjoy beer.
2018北京海淀区高三二模英语
2018北京海淀区高三二模 英语 2018.5 本试卷共12页，共120分。考试时长100分钟。考生务必将答案答在答题纸上，在试卷上作答无效。考试结束后，将答题纸交回。 第一部分：知识运用（共两节，45分） 第一节单项填空（共15小题；每小题1分，共15分） 从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题纸上将该项涂黑。 1. ----Excuse me, sir. Can you spare me a dollar _________ I can buy this book? ----Sure, no problem. A. for B. so C. but D. or 2. I need help now! I have to fix a leaking pipe in my bathroom but I’m not sure ______to begin. A. what B. which C. where D. when 3. Personally speaking, ________the grand blueprint into reality is a long process. A. turning B. turn C. turned D. having turned 4. I _____up my mind what I was going to say in the seminar, but it was cancelled. A. have made B. had made C. was making D. would make 5. You don’t need an invitation to help others. Give help _____you are asked. A. if B. as C. though D. before 6. By now 516 Confucius Institutes ______in 142 countries and regions, according to the Confucius Institute Headquarters. A. founded B. would found C. have been founded D. had been founded 7. The stadium ________ stands a theatre will be reconstructed. A. beside which B. for which C. when D. which 8. 40 grams of meat per day is ______ people should consume in order to stay fit. A. that B. why C. how D. what 9. Dream of the Red Chamber is believed to be semi-autobiographical, _______the fortunes of Cao’s own family. A. mirrored B. to mirror C. mirroring D. mirror 10. When I was small, my mom ________red me stories at night. A. could B. should C. might D. would 11. He messed the project up, but he behaved as if nothing __________.
南京市2018届高三数学考前综合题(学生)
A B N M D C B A 南京市2018届高三数学考前综合题 一．填空题 1．已知l ，m 是空间两条不重合的直线，α，β是两个不同的平面．给出下列命题： ①若l ∥α，l ∥m ，则m ∥α； ②若l ?α，m ?β，α∥β，则l ∥m ； ③若l ?α，m ?β，l ⊥m ，则α⊥β； ④若α⊥β，l ⊥α，m ⊥β，则l ⊥m ． 其中是真命题的有 ．（填所有真命题的序号） 2．已知函数f (x )＝3sin(x ＋θ)＋cos(x －θ)为偶函数，θ∈[0，π]，则角θ的值为 ． 3．在平面直角坐标系xOy 中，过抛物线x 2＝4y 焦点的直线l 交抛物线于M ，N 两点，若抛物线在点M ，N 处的切线分别与双曲线C 2：x 2a 2－y 2 b 2＝1(a ＞0，b ＞0)的两条渐近线平行，则双曲线的离心率为 ． 4．已知点P 是△ABC 内一点，满足AP →＝λAB →＋μAC → ，且2λ＋3μ＝1，延长AP 交边BC 于点D ，BD ＝2DC ，则λ＋μ＝ ． 5．已知数列{a n }的前n 项和为S n ，{a 2n －1}是公差为d 的等差数列，{a 2n }是公比为q 的等比数列，且a 1＝a 2＝a ，S 2：S 4：S 6＝1：3：6，则d aq 的值是 ． 6．已知函数f (x )＝－34x ＋1 x ，若直线l 1，l 2是函数y ＝f (x )图像的两条平行的切线，则直线l 1，l 2之间的距离的最 大值是 ． 7．在平面直角坐标系xOy 中，点P 是椭圆C ：x 2a 2＋y 2 b 2＝1(a ＞b ＞0)上一点，F 为椭圆C 的右焦点，直线FP 与 圆 O ：x 2＋y 2＝ b 2 4 相切于点Q ，若Q 恰为线段FP 的中点，则椭圆C 的离心率为 ． 8．实数x ，y 满足x 2＋2xy ＋4y 2＝1，则x ＋2y 的取值范围是 ． 9．已知AB ＝4，点M ，N 是以AB 为直径的半圆上的任意两点，且MN ＝2，AM →·BN →＝1，则AB →·MN → ＝ ． 10．在平面直角坐标系xOy 中，已知点P (1，1)，若圆M ：(x －2)2＋y 2＝r 2(r ＞0)上存在两点A ，B 使得AP →＝2PB → ， 则r 的取值范围是 ． 11．在平面四边形ABCD 中，AD ＝2，CD ＝4，△ABC 为等边三角形，则△BCD 面积的最大值是 ．