文档库 最新最全的文档下载
当前位置:文档库 › 2021届湖南名校联考联合体2018级高三上学期12月联考数学试卷及答案

2021届湖南名校联考联合体2018级高三上学期12月联考数学试卷及答案

2021届湖南名校联考联合体2018级高三上学期12月联考数学试卷及答案
2021届湖南名校联考联合体2018级高三上学期12月联考数学试卷及答案

2021届湖南名校联考联合体2018级高三上学期12月联考

数学试卷

★祝考试顺利★

(含答案)

考生注意:

1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,共150分.考试时间120分钟.

2.请将各题答案填写在答题卡上.

3.本试卷主要考试内容:解答题按新高考范围,小题只考集合,函数,导数,三角函数,向量,不等式,数列,立体几何.

第Ⅰ卷

一、选择题:本大题共8小题,每小题5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.已知集合{10}A x x =-<∣,{}2280B x

x x =--≥∣,则()R A B =( ) A .{21}x x -<<∣vs B .{41}x x -<<∣

C .{2}x x ≤-∣

D .{4}x x ≤-∣ 2.棱长为2的正四面体的表面积是( )

A B .C .D .3.已知函数222,0()1,0

x x f x x x ?->=?+≤?,若()2f a =,则a =( ) A .2 B .1 C .2或1- D .1或1-

4.明朝早期,郑和七下西洋过程中,将中国古代天体测量方面所取得的成就创造性地应用于航海,形成了一套先进航海技术——“过洋牵星术”.简单地说,就是通过观测不同季节、时辰的日月星辰在天空运行的位置和测量星辰在海面以上的高度来判断方位.其采用的主要工具是牵星板,由12块正方形木板组成,最小的一块边长约2厘米(称一指),木板的长度从小到大依次成等差数列,最大的边长约24厘米(称十二指)观测时,将木板立起,一手拿着木板,手臂伸直,眼睛到木板的距离大约为72厘米,使牵星板与海平面垂直,让板的下缘与海平面重合,上边缘对着所观测的星辰,依高低不同替换、调整木板,当被测星辰落在木板上

边缘时所用的是几指板,观测的星辰离海平面的高度就是几指,然后就可以推算出船在海中的地理纬度.如图所示,若在一次观测中,所用的牵星板为六指板,则tan 2α=( )

A .1235

B .16

C .1237

D .13

5.已知a b c >>,下列不等式不一定成立的是( )

A .2ac b ab bc +<+

B .2211a b c c >++

C .2ab c ac bc +>+

D .2b ac >

6.在平行四边形ABCD 中,点E,F 分别为线段BC,AB 的中点,直线AE 与直线DF 交于点P ,则

||||AP PE = ( )

A .25

B .23

C .32

D .52

7.已知等差数列{}n a 和{}n b 的前n 项和分别为n S 和n T ,且

6381n n S n T n +=+,则使得k k a b 为整数的正整数k 的个数是( )

A .3

B .4

C .5

D .6

8.已知函数()f x 是定义在R 上的奇函数,其导函数为()f x ',且对任意实数x 都有

()()1f x f x '+>,则不等式e ()e 1x x f x >-的解集为( )

A .(,0)-∞

B .(0,)+∞

C .(,1)-∞

D .(1,)+∞

二、选择题:本大题共4小题,每小题5分,共20分.在每小题给出的四个选项中,有多项符

合题目要求.全部选对的得5分,部分选对的得3分,有选错的得0分.

9.下列函数中是奇函数,且值域为R 的有( )

2020年高三英语【名校、地市联考】精选仿真模拟卷01(试卷版)

2020年高三【名校、地市联考】精选仿真模拟卷01 英语 (考试时间:90分钟试卷满分:120分) 注意事项: 1. 答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。 2. 回答选择题时,选出每小题答案后,用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,再选涂其他答案标号。回答非选择题时,将答案写在答题卡上,写在本试卷上无效。 3. 考试结束后,将本试卷和答题卡一并交回。 第一部分阅读理解(共两节,满分40分) 第一节(共15小题;每小题2分,满分30分) 阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。 A(2019年东北三省三校高三第二次联合模拟) Moringa Farm Internship Program DA TE:5 May?30 November 2019 LOCATION: Jaipur India EVENT TYPE:Twining EVENT INDUSTRY/TOPIC: Clean Energy, Climate & Environment, Food & Agriculture and Quality/Process Managem Moringa (辣木), a kind of miracle tree, has come a long way today to become a symbol of the fight against growing nutrition deficiency (营养不足) across the globe. It is also a crop suited to the climatic conditions of the region, which is unusually rich in its nutrition content literally from top to bottom. Supporting learning: The Moringa Farm Internship Program is sort of like a live, interactive slideshow of agriculture making of Moringa from “Soil to Super food” that touches all the participant’s senses. The Program’s Objectives: The Moringa Farm Internship Program is devoted to enriching the knowledge and lives of young people by providing them with a unique educational experience on an organic Moringa Farm in rural Jaipur, India. Program participants can learn about conservation, maintenance (维护), care, and management of Moringa Farming by means of hands-on work experience with local Moringa Farm staff. Participants will be able to interact with Moringa specialists and educators, on all issues that may affect their operations. Experts will let you know management strategies and equipment operation up close on hand to answer your specific questions. 1

山东省2020届高三英语12月联考试题

h叶利带 明主旦 件 央语 注意事项: 1.答卷前,考生务必将自己的姓名、考生号等填写在答题卡和试卷指定位置上。 2.回答选择题时,选出每小题答案后,用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,再选涂其他答案标号。回答非选择题时,将答案写在 答题卡上。写在本试卷上无效。 3.考试结束后,将本试卷和答题卡一并交囚。 第一部分阅读(共两节,满分50分) 第一节(共15小题:每小题2.5分,满分37.5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工页。 A Why go to Madrid? There may be a slight chill (寒冷)in the air, with temperatures staying a r ound 15。C in March, but Spain’s handsome capital is slowly starting to _warm up. Even more a位ractive are the cultural events. A new exhibition on the living and working spaces of Spain’s greatest artist, Picasso, has just opened in the studio at the Fundaci6n Mapfre at Paseo de Recoletos 23. It runs until 11 May with rarely seen pieces borrowed from his family. Later this summe几the400th anniversary of the death of the Renaissance (文艺复兴) painter El Greco will be marked with an exciting exhibition at也e Museo del Prado at Paseo de! Prado from 24 June to 5 October. How togo? The widest range of flights is offered by Easy J et一企om Bristol, Edinbur驹,Gatwick, Liverpool and Luton. B ritish Airways and its sister airline Iberia combine forces from Heathrow and London City. Ryanair flies from Manchester and Stansted; Air Europa flies from Gatwick. 英语试题第1页(共9页〉 Bar梆ai叩ort is 13km north-east of the city centre and is served by frequent trains on Metro line 8, but the shortest underground journey is a bit complex with at least one change at Nuevos Ministerios station and takes about 30 minutes. The也re to any station in the city centre is €4.50. The airport express bus runs eve可15to 35 minutes around the clock;白one way. It takes 40 minutes to reach the city centre. A taxi takes half the time. A flat rate ofε30、 covers most of central Madrid. I.When will the exhibition about Picasso close? A.On 23 March. C.On 24 June. B.On 1 l沁fay. D.On 5 O ctober. 2.Which airline operates flights from Manchester to Madrid? A.EasyJet. C.Air Europa. B.Ryanair. D.BritishAirways. 3.What is the fastest way to reach central Madrid from Bar苟as ai叩ort? A.Take a taxi. B.Take a city bus. C.Take Metro line 8. D. Take the airport express bus. B My school appeared on the news last week because we had made an important change in our local area. Our class had planted a large garden in what was once only a vacant lot. It was a lot of work but it was all worth it. I got blisters (水泡)企om digging, and we all got insect bites, too. I learned a lot about 伊dening and collaboration (合作),and then I learned about the media. Our teacher telephoned the TV station and informed them of what we had accomplished. She spoke with the produce汇The producer checked with the directors, but they said there were plenty of stories similar to ours. They wanted to know what was special about our p缸t icular garden, since many schools plant them. The teacher explained that, after going on the Internet to learn about the prairie (大草原), we had made a prairie garden. We had gone to a prairie and gotten seeds from the plants, and then we planted them. We did not water the garden, but we did weed it. We decided to let nature water it with rain, since that was how prairies grew in the past. We sent a picture of t he garden to the news station. In the picture, the grass was so high that it stood taller than the fourth grade students. 英语试题第2页(共9页)

2020年江苏高考数学试题及答案

2020年江苏高考数学试题及答案 参考公式: 柱体的体积V Sh =,其中S 是柱体的底面积,h 是柱体的高 一、填空题:本大题共14小题,每小题5分,共计70分.请把答案填写在答题卡相应位置上......... 1.已知集合{1,0,1,2},{0,2,3}A B =-=,则A B =▲ 2.已知i 是虚数单位,则复数(1i)(2i)z =+-的实部是▲ 3.已知一组数据4,2,3,5,6a a -的平均数为4,则a 的值是▲ 4.将一颗质地均匀的正方体骰子先后抛掷2次,观察向上的点数,则点数和为5的概率是▲ 5.如图是一个算法流程图,若输出y 的值为2-,则输入x 的值是▲ 6.在平面直角坐标系xOy 中,若双曲线222105()x y a a -=>的一条渐近线方程为y ,则该双曲线的离心 率是▲ . 7.已知y =f (x )是奇函数,当x ≥0时,()2 3 f x x =,则()8f -的值是▲ . 8.已知2sin ()4απ +=23 ,则sin 2α的值是▲ . 9.如图,六角螺帽毛坯是由一个正六棱柱挖去一个圆柱所构成的.已知螺帽的底面正六边形边长为2cm,高为2cm,内孔半轻为0.5 cm,则此六角螺帽毛坯的体积是▲ cm.

10.将函数πsin(32)4y x =﹢的图象向右平移π 6 个单位长度,则平移后的图象中与y 轴最近的对称轴的方程是 ▲ . 11.设{a n }是公差为d 的等差数列,{b n }是公比为q 的等比数列.已知数列{a n +b n }的前n 项和 221()n n S n n n +=-+-∈N ,则d +q 的值是▲ . 12.已知22451(,)x y y x y +=∈R ,则22x y +的最小值是▲ . 13.在△ABC 中,43=90AB AC BAC ==?,,∠,D 在边BC 上,延长AD 到P ,使得AP =9,若3 ()2 PA mPB m PC =+-( m 为常数),则CD 的长度是▲ . 14.在平面直角坐标系xOy 中,已知0)P ,A ,B 是圆C :2 21()362x y +-=上的两个动点,满足PA PB =, 则△PAB 面积的最大值是▲ . 二、解答题:本大题共6小题,共计90分,请在答题卡指定区域.......内作答,解答时应写出文字说明、证明过程或演算步骤. 15.( 本小题满分14分) 在三棱柱ABC -A 1B 1C 1中,AB ⊥AC ,B 1C ⊥平面ABC ,E ,F 分别是AC ,B 1C 的中点. ( 1)求证:EF ∥平面AB 1C 1; ( 2)求证:平面AB 1C ⊥平面ABB 1.

2019年浙江省十校联盟高三10月联考英语试题及答案解析

2019年浙江省十校联盟高三10月联考 英语试题 注意事项: 1.答题前填写好自己的姓名、班级、考号等信息; 2.请将答案正确填写在答题卡上。 第I卷(选择题) 一、阅读理解 One evening last summer, 11-year-old Owen and his mom put on white suits and taped their rain boots to their pant legs. Then they each grabbed a wooden pole with a large white cloth attached to it and started dragging the tools through the trees and grass in their Wisconsin backyard. They were looking for ticks(扁虱虫). Owen’s mom, Amy Prunuske, teaches microbiology at the Medical College of Wisconsin in Wausau. She studies diseases that ticks carry. Owen, though, is known as a citizen scientist. Citizen scientists are people—young or old—who help collect data for research projects. They usually aren’t professional scientists, or if they are, not in the field of the project. Still, their work can be incredibly important. Citizen scientists can help trained scientists gather data from all over the world—even from space. They can provide new ideas and new ways of thinking. Kids often make great citizen scientists because they tend to be curious and good at following precise directions. Sometimes they’re even better at these things than adults. And schools are convenient places for scientists to recruit big groups of helpers. As a bonus, citizen science often gets kids more excited about science. Citizen science takes advantage not just of many sets of eyeballs, but also of many minds. When professional European scientists in Austria were trying to find how best to encourage people to use less energy, they partnered with student citizen scientists. The adult scientists had a long list of questions for people about how much energy they used. Right away, the students noticed some problems the adults hadn’t thought of. There were too many questions, the kids said. And some of those questions were too complicated.

安徽等省全国名校2018届高三第四次联考英语试卷带答案

全国名校大联考 2017~2018学年度高三第四次联考 英语 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,听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1.How does the woman suggest going to New York? A.By plane.B.By train. C. By car 2.When will the man leave? A.On September 3rd.B.On September 12th. C. On September 13th 3.What does the woman think of the trip? A.It’s disappointing.B.It’s fantastic. C. It’s dull 4.What are the speakers talking about? A.Preparing for a meeting. B.Fixing a copying machine. C.Using a copying machine. 5.How long did the woman wait alter work yesterday? A.One hour.B.Two hours.C.Three hours. 第二节(共15小题;每小题1.5分,满分22.5分) 听下而5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料,回答第6、7题。 6.Where does the conversation probably take place? A.In a hotel.B.In a schoo1.C.In a shop. 7.When will the pool open? A.At six o’clock tomorrow morning. B.At five o‘clock in the afternoon. C.At eight o’clock in the evening. 听笫7段材料,同答第8拿10题。 8.What does the man think of the tea the woman makes? A.Good.B.Bad. C. Ordinary. 9.What’s the most important thing to make a pot of tea? A.Having a china teapot. B.Washing the teapot. C.Pouring boiling water over the tea. 10.How long does it take to make the teapot stand before drinking? A.At the most two minutes.

2020届北京市首都师范大学附属中学2017级高三联考英语试卷及解析

2020届首都师范大学附属中学2017级高三联考 英语试卷 ★祝考试顺利★ 第一部分:知识运用(共两节,45分) 第一节语法填空(共10小题;每小题1.5分,共15分) A My classmates and I had a really unforgettable experience,which made us very happy. We paid a visit ___1___ Lucy’s house yesterday. We didn’t have difficulty finding her house because she ___2___ (give) us clear directions. When we arrived at her house, her mother was preparing food for us. Then we began to help with the cooking. About an hour later, the food was ready, and we sat at the table enjoying the delicious food including fish and ___3___ (vegetable). Finally we went to Ann’s room where we watched our favourite TV programme together. ___4___ (decorate) with flowers and balloons, the room was warm and comfortable. 【答案】1. to 2. had given 3. vegetables 4. Decorated 【解析】 这是一篇记叙文。文章记叙了作者和同班同学昨天到露西家做客的愉快经历。 【1题详解】 考查介词。表示“参观……”,应用pay a visit to sp.,是固定表达。故该空填介词to。 【2题详解】 考查时态。句意:因为她已经给了我们清楚的说明,所以,我们毫无困难的找到了她的家。根据语境,“她给我们说明”发生在“我们找到她的家”之前,即过去的过去,故该句应用过去完成时态,填had given。

2018年江苏高考数学试题及答案

2018年普通高等学校招生全国统一考试(江苏卷) 数学Ⅰ 注意事项 考生在答题前请认真阅读本注意事项及各题答题要求 1.本试卷共4页,均为非选择题(第1题~第20题,共20题)。本卷满分为160分,考试时间为120分钟。 考试结束后,请将本试卷和答题卡一片交回。 2.答题前,请务必将自己的姓名、准考证号用0.5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置。 3.请认真核对监考员从答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符。学科@网 4.作答试题,必须用0.5毫米黑色墨水的签字笔在答题卡上的指定位置作答,在其他位置作答一律无效。5.如需作图,须用2B铅笔绘、写清楚,线条、符号等须加黑、加粗。 参考公式: 锥体的体积 1 3 V Sh =,其中S是锥体的底面积,h是锥体的高. 一、填空题:本大题共14小题,每小题5分,共计70分.请把答案填写在答题卡相应位 ...... 置上 ... 1.已知集合{0,1,2,8} A=,{1,1,6,8} B=-,那么A B=▲ . 2.若复数z满足i12i z?=+,其中i是虚数单位,则z的实部为▲ . 3.已知5位裁判给某运动员打出的分数的茎叶图如图所示,那么这5位裁判打出的分数的平均数为▲ .

4.一个算法的伪代码如图所示,执行此算法,最后输出的S 的值为 ▲ . 5.函数()f x 的定义域为 ▲ . 6.某兴趣小组有2名男生和3名女生,现从中任选2名学生去参加活动,则恰好选中2名女生的概率为 ▲ . 7.已知函数sin(2)()22y x ??ππ=+- <<的图象关于直线3 x π =对称,则?的值是 ▲ . 8.在平面直角坐标系xOy 中,若双曲线22 221(0,0)x y a b a b -=>>的右焦点(,0)F c 到一条渐近 ,则其离心率的值是 ▲ .

【校级联考】安徽省江淮十校2019届高三第二次联考英语试题(解析版)

江淮十校2019届高三第二次联考 英语试题 2018. 11 命审单位:宣城中学命审人:林琚徐淑贞 第一部分听力(共两节,满分30分) 做题时先将答案标在试卷上,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。 1. Where are the speakers? A. At an airport. B.At a bus stop. C.At a railway station. 2.What time is it now? A.8:45. B.8:15. C.7:45. 3. What does the man dislike about his new job? A. The salary. B.The working hours. C.The location of the company. 4.What will the woman do? A. Buy a new Apple Watch. B. Change for a new Apple Watch. C. Have the Apple Watch repaired. 5. What are the speakers mainly talking about? A.A TV program. B.Some dancers. C.A dance competition. 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,每段对话或独白后有几个小题,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。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料,回答第6.7题。

全国名校联盟2020届高三质量检测联考-【英语】含答案

绝密★启用前 全国名校联盟2020届高三质量检测联考 英语 (满分150分,考试时间120分钟) 注意事项: 1.答题前,考生务必将自己的姓名、准考证号填写在答题卡上相应的位置。 2.全部答案在答题卡上完成,答在本试题上无效。 3.回答选择题时,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,再选涂其他答案标号。回答非选择题时,将答案用 mm黑色笔迹签字笔写在答题卡上。 ) 4.考试结束后,将本试卷和答题卡一并交回。 第一部分听力(共两节,满分30分) 做题时,先将答案标在试卷上。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;每小题分,满分分) 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。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. £ . B. £ . C. £ 答案是C。 ( 1. Where does the conversation most probably take place A. In a gift shop. B. On campus. C. On a bus. 2. What caused Michael to be late this morning A. The freezing weather. B. An urgent call. C. An unexpected accident. 3. When does the flight leave A. At 11:15. B. At 10:45. C. At 10:15. 4. What does the man plan to do this evening

2020届高三全国卷第一次在线联考英语试题(PDF版)

“超级全能生"2020届高三全国卷第一次在线联考 英语 注意事项: 1. 本试题卷共8页,满分150分,考试时间120分钟。 2. 答题前,考生务必将自己的姓名、准考证号填写在答题卡的相应位置。 3. 全部答案在答题卡上完成,答在本试题卷上无效。 4. 回答选择题时,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,再选涂其他答案标号。 5考试结束后,将本试题卷和答题卡一并交回。 第一部分听力(共两节,满分30分) 第一节(共5小题;每小题1.5分,满分7.5分) 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。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. 15. B.£9.18. C. £9. 15. 答案是C。 1 .W hat does the man mean? A. H e doesn't want to invite Sam. B. S am will bring his children. C. H e forgets to invite Sam. 2.What is the man doing now? A. B ooking film tickets. B. C limbing the mountain. C. S itting at the back of the cinema. 3.Why does the man turn down the invitation? A. H e dislikes table tennis. B. H e can't beat the woman. C. H e has some lessons. 4.What is the probable relationship between the speakers? A. C oach and pl ay er. B. M other and son. C. H usband and wife. 5. W hat should the woman do first? A. F ind the fruit shop. B. Walk to the traffic lights. C. Walk for two blocks. 英语试题卷笫1页(共8页)

2020年江苏高考数学试卷

绝密★启用前 2020年普通高等学校招生全国统一考试(江苏卷) 数学Ⅰ 参考公式: 柱体的体积V Sh =,其中S 是柱体的底面积,h 是柱体的高. 一、填空题:本大题共14小题,每小题5分,共计70分.请把答案填写在答题卡相应位置上......... 1.已知集合{1,0,1,2},{0,2,3}A B =-=,则A B = ▲ . 2.已知 i 是虚数单位,则复数(1i)(2i)z =+-的实部是 ▲ . 3.已知一组数据4,2,3,5,6a a -的平均数为4,则a 的值是 ▲ . 4.将一颗质地均匀的正方体骰子先后抛掷2次,观察向上的点数,则点数和为5的概率是 ▲ . 5.如图是一个算法流程图,若输出y 的值为2-,则输入x 的值是 ▲ .

6.在平面直角坐标系xOy 中,若双曲线222105()x y a a -=>的一条渐近线方程为y =,则该双曲线的离 心率是 ▲ . 7.已知y =f (x )是奇函数,当x ≥0时,()2 3 f x x =,则()8f -的值是 ▲ . 8.已知2sin ()4απ+=2 3 ,则sin 2α的值是 ▲ . 9.如图,六角螺帽毛坯是由一个正六棱柱挖去一个圆柱所构成的.已知螺帽的底面正六边形边长为2 cm ,高为2 cm ,内孔半轻为0.5 cm ,则此六角螺帽毛坯的体积是 ▲ cm. 10.将函数πsin(32)4y x =﹢的图象向右平移π 6 个单位长度,则平移后的图象中与y 轴最近的对称轴的方程是 ▲ . 11.设{a n }是公差为d 的等差数列,{b n }是公比为q 的等比数列.已知数列{a n +b n }的前n 项和 221()n n S n n n +=-+-∈N ,则d +q 的值是 ▲ . 12.已知22451(,)x y y x y +=∈R ,则22x y +的最小值是 ▲ . 13.在△ABC 中,43=90AB AC BAC ==?,,∠,D 在边BC 上,延长AD 到P ,使得AP =9,若 3 ()2 PA mPB m PC =+-(m 为常数),则CD 的长度是 ▲ .

宁波市高三“十校联考”英语试题卷

2017年09月宁波市高三“十校联考”英语试题卷

第二部分阅读理解(共两节,满分35分) 第一节(共10小题;每小题2.5分,满分25分) 阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项,并在答题纸上将该项涂黑。 A.Making action-packed schedules in advance. B.Getting the job done effectively and punctually. C.Working around the clock every day. D.Establishing a harmonious relationship with colleagues. 22.Which of the following phrases has the closest meeting to the underlined word “procrastinate”in paragraph 2? A.amuse oneself B.hang out C.drag on e’s feet D.hold up 23.Which can be concluded from the text? A.Time tries all. B.Time works wonders. C.Time is effectiveness. D.Time is money. B A Gift of God One fine summer morning-it was the beginning of harvest, I remember-Mr. Earnshaw came down stairs, dressed for a journey; he turned to Hindley and Cathy, and me and spoke to his son, "Now, I'm going to Liverpool today. What shall I bring you? " Hindley named a fiddle (a kind of violin), and then he asked Cathy. She was hardly six years old, but she could ride any horse in the stable. She chose a whip(鞭子).He did not forget me; He promised to bring me a pocketful of apples and pears. Then he set off. The three days of his absence seemed a long while to us all. Mrs. Earnshaw expected him by supper-time on the third evening. She put off the meal hour after hour. There were no signs of his coming, however. About eleven o'clock the door opened and in stepped the master. He threw

2021届湖南四大名校联考新高考模拟试卷(十)英语试题

2021届湖南四大名校联考新高考模拟试卷(十) 英语试题 ★祝考试顺利★ 注意事项: 1、考试范围:高考范围。 2、试题卷启封下发后,如果试题卷有缺页、漏印、重印、损坏或者个别字句印刷模糊不清等情况,应当立马报告监考老师,否则一切后果自负。 3、答题卡启封下发后,如果发现答题卡上出现字迹模糊、行列歪斜或缺印等现象,应当马上报告监考老师,否则一切后果自负。 4、答题前,请先将自己的姓名、准考证号用0.5毫米黑色签字笔填写在试题卷和答题卡上的相应位置,并将准考证号条形码粘贴在答题卡上的指定位置。用2B铅笔将答题卡上试卷类型A后的方框涂黑。 5、选择题的作答:每个小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。写在试题卷、草稿纸和答题卡上的非选择题答题区域的答案一律无效。 6、填空题和解答题的作答:用签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域的答案一律无效。如需改动,先划掉原来的答案,然后再写上新答案;不准使用铅笔和涂改液。不按以上要求作答无效。 7、选考题的作答:先把所选题目的题号在答题卡上指定的位置用2B铅笔涂黑。答案用0.5毫米黑色签字笔写在答题卡上对应的答题区域内,写在试题卷、草稿纸和答题卡上的非选修题答题区域的答案一律无效。 8、保持答题卡卡面清洁,不折叠,不破损,不得使用涂改液、胶带纸、修正带等。 9、考试结束后,请将本试题卷、答题卡、草稿纸一并依序排列上交。 第一部分听力(共两节,满分30分) 做题时,先将答案标在试卷上。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。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. £19.15. B. £9.18. C. £9.15. 答案是C。 1. What does the woman think of the food? A. Delicious. B. Fatty. C. Terrible. 2. What is the relationship between the two speakers? A. They are strangers. B. They are friends. C. They are neighbors.

山西省2018届高三省际名校联考(三)英语试卷(含答案)

2018届山西省高三省际名校联考(三) 英语试题 注意事项: 1.答题前,考生务必将自己的姓名、准考证号填写在本试题相应的位置。 2.全部答案在答题卡上完成,答在本试卷上无效。 3.回答选择题时,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,再选涂其他答案标号。回答非选择题时,将答案用0.5mm黑色笔迹签字笔写在答题卡上。 4.考试结束后,将本试题和答题卡一并交回。 第一部分听力(共两节,满分30分) 做题时,先将答案标在试卷上。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. £19.15 B. £9.15 C. £9.18 答案是B 1. Where does the conversation probably take place? A. On a bus B. In an elevator C. In a taxi 2. What will the man do in Edinburgh? A. Introduce Rosy to Justin B. Give Justin the medicines C. Tell Justin his new address 3. What kind of music does the man like? A. Jazz B. Rock C. Folk

2019年江苏省高考数学试卷以及答案解析

绝密★启用前 2019年普通高等学校招生全国统一考试(江苏卷) 数学 一、填空题:本大题共14小题,每小题5分,共计70分.请把答案填写在答题卡相应位置上. 1.(5分)已知集合A={﹣1,0,1,6},B={x|x>0,x∈R},则A∩B=.2.(5分)已知复数(a+2i)(1+i)的实部为0,其中i为虚数单位,则实数a的值是.3.(5分)如图是一个算法流程图,则输出的S的值是. 4.(5分)函数y=的定义域是. 5.(5分)已知一组数据6,7,8,8,9,10,则该组数据的方差是. 6.(5分)从3名男同学和2名女同学中任选2名同学参加志愿者服务,则选出的2名同学中至少有1名女同学的概率是. 7.(5分)在平面直角坐标系xOy中,若双曲线x2﹣=1(b>0)经过点(3,4),则该双曲线的渐近线方程是. 8.(5分)已知数列{a n}(n∈N*)是等差数列,S n是其前n项和.若a2a5+a8=0,S9=27,则S8的值是. 9.(5分)如图,长方体ABCD﹣A1B1C1D1的体积是120,E为CC1的中点,则三棱锥E﹣BCD的体积是.

10.(5分)在平面直角坐标系xOy中,P是曲线y=x+(x>0)上的一个动点,则点P到直线x+y=0的距离的最小值是. 11.(5分)在平面直角坐标系xOy中,点A在曲线y=lnx上,且该曲线在点A处的切线经过点(﹣e,﹣1)(e为自然对数的底数),则点A的坐标是. 12.(5分)如图,在△ABC中,D是BC的中点,E在边AB上,BE=2EA,AD与CE交于点O.若?=6?,则的值是. 13.(5分)已知=﹣,则sin(2α+)的值是. 14.(5分)设f(x),g(x)是定义在R上的两个周期函数,f(x)的周期为4,g(x)的 周期为2,且f(x)是奇函数.当x∈(0,2]时,f(x)=,g(x)= 其中k>0.若在区间(0,9]上,关于x的方程f(x)=g(x)有8个不同的实数根,则k的取值范围是. 二、解答题:本大题共6小题,共计90分.请在答题卡指定区域内作答,解答时应写出文字说明、证明过程或演算步骤. 15.(14分)在△ABC中,角A,B,C的对边分别为a,b,c. (1)若a=3c,b=,cos B=,求c的值; (2)若=,求sin(B+)的值. 16.(14分)如图,在直三棱柱ABC﹣A1B1C1中,D,E分别为BC,AC的中点,AB=BC.求证:(1)A1B1∥平面DEC1; (2)BE⊥C1E.

相关文档
相关文档 最新文档