湖北省黄冈中学2014年秋季九上英语期中考试试卷解析
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一、选择题1.I met Lily a bookstore yesterday.A.on B.to C.in D.of C解析:C【解析】句意:我昨天在书店遇见了莉莉。
考查介词辨析题。
in a bookstore在书店里,是习惯表达。
根据句意语境,可知选C。
2.---Where is the bookstore?---It’s _____ the second floor. And it’s ____ the school and the bank.A.at, next to B.to, in front of C.on, between D.in, across from C解析:C【解析】【详解】句意“-书店在哪里?-在二楼,在学校和银行中间”。
at到达,后加小地点;on在……上; in 到达,后加大地点;to到……。
第一空处,on the second floor在二楼。
next to在……旁边;in front of在……前面;between...and...在……和……之间;across from在……对面。
根据句意可知,表示在“学校和银行之间”,故选C。
3.Can you tell me _____on the Internet?A.how can I use QQB.where can I use QQC.what I can use QQD.how to use QQ D解析:D【详解】句意“你能告诉我如何在网上使用QQ吗?”。
宾语从句要用陈述句语序,排除A和B。
且根据句意可知,译为“如何使用QQ”.本题考察“疑问词+to do”形式,how to use QQ译为如何使用QQ,且用how时,后要接宾语,选项C,use的宾语是QQ,what不能作主语和宾语,故what不对,故选D。
4.Go ______ the hall, and you’ll find a red box on the ground.A.across B.through C.over D.cross B解析:B【详解】句意:穿过大厅,你会发现地上有一个红色的盒子。
湖北省黄冈中学2014届高考模拟试卷英语(一)2高考英语2014-02-25 2014()Many people will remember the flight of the space shuttle(航天飞机)challenger,in June,1983. The achievement of Sally Ride,America’s first woman astronaut to fly into space,made this flight especially memorable. Students from two Camden, New Jersey, high schools, however, are probably to remember Norma rather than Sally whenever they think about the flight.Norma didn’t travel alone. She brought about 20140 companions along with her. Norma was an ant,a queen ant who,with her subject,made up the first ant colony(群体)to travel into space. The ants were part of a science experiment designed by students to test the effects of weightlessness on insects.The equipment designed by the students for their colony functioned perfectly throughout the long space trip. The young scientists and their teachers were very sad to find that their insect astronauts had all died at some point before the container was returned to the school and opened. The problem didn’t occur in space,but on the ground after challenger had landed. The container remained in the desert for nearly a week before the ant colony was moved. The hot,dry desert air dried out the colony’s container and the ants died from lack of moisture(水分).The project was termed success because it did provide useful information. Students will continue their efforts to pinpoint(精确找到)what went wrong. They will try to prevent the same difficulties from reoccurring on future missions. They don’t want to be discouraged either by the demise of the ants or by the $ 2014,000 shuttle fare they will have to pay to send the next colony of ants into space.51.What does the passage mainly tell us?A.Sally Ride,America’s first woman astronaut.B.How to keep ants alive in space.C.How to make equipment for insects in space.D.An experiment with ants in space.52.According to the passage, we know that the underlined word“demise”is another word for“_____”.A.death B.colonyC.insect D.moisture53.We don’t think the project was a failure. This is because_____.A.everything went as smoothly as expectedB.the students had pinpointed exactly the reasonC.something important had been learnedD.the students had succeeded in the experiment54.We can conclude that ants _____ on the next space trip.A.will have to be kept alive in a container full of waterB.will have to be sent into space with the first woman astronautC.should be put into a container where there is enough foodD.should be put into a container which is not too dryBRussian President Putin named Time magazine’s“Person of the Year”Russian President Vladimir Putin was named Time magazine’s“Person of the Year”on December 19th.2007 for strengthening stability(稳定)that made Russia a world power again.The magazine recognized Putin’s“extraordinary feat(技艺)of leadership in taking a country that was in a mess and bringing it stability,”said Richard Stengel,Time’s managing editor.The magazine noted that“Person of the Year”is not an honor or an endorsement(认可)but a recognition of leadership that shapes the world.Putin,who is 56 years old,is very popular in Russia,making a great effort to cause economy to come to life on revenue(收入)from oil and natural gas.Putin recently supported vice-PM Dmitry Medvedev’s presidential bid,and said he would accept Medvedev’s offer to serve as prime minister if Medvedev is elected on March 2.The Kremlin said Wednesday the Time recognition was seen there as an acknowledgement o f Putin’s role in helping Russia pull out of its social and economic troubles in the 1990s.Others considered for“Person of the Year”included Nobel Prize-winner Al Gore and author J.K. Rowling.This year’s choice was a return to the magazine’s traditio n of picking an individual rather than last year’s choice of“You”,which refers to anyone creating or using content on the World Wide Web.Putin is the fifth Russian(or Soviet)leader to be named Person of the Year:Gorbachev,Andropov,Khrushchev and Stalin,who was named twice.55.How did Putin try to make Russia a world power again?A.By performing arms race.B.By making war.C.By strengthening stability.D.By getting foreign help.56.Which of the following is Not True according to the passage?A.Russia used to be in a mess.B.Time always picks an individual to be the“Person of the Year”.C.Oil and natural gas caused Russia’s economy to come to life.D.Putin will leave office on March 2,2007.57.What does the underlined word“acknowledgement”mean?A.Praise.B.Support.C.Scold.D.Recognition.58.How many times have Russian leaders been named“Person of the Year”so far?A.Five times.B.Six times.C.Seven times.D.Eight times.。
湖北省黄冈中学2013年秋季高一数学期中考试试题命题:周永林 审稿:袁小幼 校对:明元慧(教师版)一、选择题:本大题共10小题,每小题5分,共50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. 如右图所示,U 是全集,A 、B 是U 的子集,则图中阴影部分表示的集合是( )A .AB B .()U B A ðC .AB D .()U A B ð【答案】B【解析】由交集、补集的定义可知选B.2.函数)y x =-的定义域为集合A ,则集合A =( )A. ()0,1B. [)0,1C. (]0,1D. []0,1【答案】B【解析】要使解析式有意义:010x x ≥⎧⎨->⎩,解得:[)0,1x ∈,故选B ;3.下列各组函数中表示同一函数的是( ) A. x x f =)(与2)()(x x g = B. ||)(x x f =与33)(x x g =C. xe xf ln )(=与xe x g ln )(= D. 11)(2--=x x x f 与)1(1)(≠+=x x x g【答案】D【解析】A 、B 选项,(),()f x g x 定义域不同;B 选项,值域不同或者对应关系不同. 4.函数21log y x=,(0)x >的大致图象为( )【答案】C【解析】221log log y x x==-,只需将2log y x =图像关于x 轴作对称变换即可得到; 5. 下列函数中,既是偶函数又在区间()0,+∞上单调递减的是( ) A. 1y x=B. x y e -=C. 21y x =-+ D. lg ||y x =【答案】C【解析】由“偶函数”条件,可以排除A ,B ;由“在区间()0,+∞上单调递减”可以排除D ;故选C ;6.已知()f x 是奇函数,()g x 是偶函数,且(1)(1)2,(1)(1)4f g f g -+=+-=,则(1)g =( ) A. 4 B. 3 C. 2 D. 1【答案】B 【解析】()f x 是奇函数,()g x 是偶函数,(1)(1),(1)(1)f f g g ∴-=--=∴由题可得:(1)(1)2(1)(1)4f g f g -+=⎧⎨+=⎩,解方程可得:(1)1(1)3f g =⎧⎨=⎩7.已知y x ,为正实数,则( )A. lg lg lg lg 222x y x y +=+B. ()lg lg lg 222x y x y +=⋅C. lg lg lg lg 222x y x y =+D. ()lg lg lg 222xy x y =⋅ 【答案】D【解析】由对数、指数运算性质可知选D ;8.拟定从甲地到乙地通话m 分钟的话费由[]3.71,(04)() 1.06(0.52),(4)m f m m m <≤⎧⎪=⎨+>⎪⎩给出,其中[]m 是不超过m 的最大整数,如:[]3.743=,从甲地到乙地通话5.2分钟的话费是( ) A. 3.71 B. 4.24 C. 4.77 D. 7.95 【答案】C【解析】[](5.2) 1.06(0.5 5.22) 4.77f =⨯⨯+=9.集合{}210A x ax ax =∈++=R 的子集只有2个,则a =( ) A. 4 B. 2C. 0D. 0或4【答案】A【解析】集合A 子集只有2个,则集合A 中元素只有一个,方程210ax ax ++=只有一个根;当0a =,不合题意;当0a ≠,240a a ∆=-=,解得:0()4a a ==舍或;故选A.10.已知函数()f x 是定义在R 上的偶函数, 且在区间[0,)+∞单调递减. 若实数a 满足212(log )(log )2(1)f a f f a ≤+,则a 的取值范围是( )A. [)2,+∞B. [)1,2,2⎛⎤-∞+∞ ⎥⎝⎦C. 1,22⎛⎤ ⎥⎝⎦D. [)10,2,2⎛⎤+∞⎥⎝⎦【答案】D【解析】212222(log )(log )(log )(log )2(log )2(1)f a f a f a f a f a f +=+-=≤,所以2((log 1))f a f ≤由“函数()f x 是定义在R 上的偶函数, 且在区间[0,)+∞单调递减”,所以2log 1a ≥,即22log 1,log 1a a ≥≤-或,所以12,02a a ≥<≤或;故选D二、填空题:本大题共5小题,每小题5分,共25分.11.函数(0,1)xy a a a =>≠且的反函数的图象过点(9,2),则a 的值为_______.【答案】3【解析】由题知:x y a =图象过点(2,9),则29a =,又0a >,所以3a=.12.计算=+--3324log ln 01.0lg 2733e _______.【答案】0 【解析】3223log 43233327lg 0.01ln 43lg(10)3e ⨯---+=--+49230=-++=13.已知函数()f x 的图象如右图所示,则此函数的定义域是 ________,值域是_______. 【答案】[]3,3-,[]2,2- 【解析】由图像可知;14.给定集合A 、B ,定义A ※B {},,x x m n m A n B ==-∈∈,若{}4,5,6A =,{}1,2,3B = 则集合A ※B 中的所有元素之和为_______. 【答案】15【解析】A ※B {}1,2,3,4,5=,元素之和为15;15.设a 为实常数,()y f x =是定义在R 上的奇函数,当0x <时,2()913a f x x x=++,若()1f x a ≥+对一切0x ≥成立,则a 的取值范围为_______.【答案】2a ≤-【解析】()y f x =解析式为:22913,0()0,0913,0a x x x f x x a x x x ⎧++>⎪⎪⎪==⎨⎪⎪+-<⎪⎩;因为()1f x a ≥+对一切0x ≥成立,0(0)01,1x f a a ∴==≥+∴≤-当时,;0()x f x a ∴>≥⇔当时,恒成立min ()f x a ≥,min()13613f x f a ===-而x>0时,,由1a ≤-,所以min ()6131f x a a =--≥+,解得2a ≤-;三、解答题:本大题共6小题,共75分.解答应写出文字说明、证明过程或演算步骤。
湖北省黄冈中学2014年春季高一期中考试英语试题命题人:李文宏张红本试卷分为四部分, 满分150分。
考试时间120分钟。
第一部分:听力(共两节,满分30分)做题时,先将答案划在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What’s the man’s telephone number?A. 8890643B. 8890634C. 88706342. Which people does the woman mention?A. British people.B. French people.C. Chinese people.3. Who wasn’t happy with Fred?.A. The guests.B. His dad.C. The man.4. What does the woman want the man to do?A. Come to the party.B. Visit her new office.C. Help her buy some flowers.5. Which of the following is TRUE about Arnold?A. He was lucky last week.B. He passed his driver’s test.C. He had practiced driving for a long time.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。
湖北省黄冈中学2014届高考模拟试卷英语(一)1高考英语2014-02-25 2014()黄冈中学2014届高考模拟试卷英语(一)命题:张志刚审稿:程全富校对:皮明松总分:150分时间:120分钟第Ⅰ卷(三部分,共12014分)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2014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 did the woman learn about the job?A.A friend told her about the job.B.She saw an ad. in the newspaper.C.She heard about it months ago.2.What does the woman mean?A.She attended the lecture on Friday.B.She got mixed up with the dates.C.The man doesn’t need to remind her.3.What is Tom’s plan?A.To visit China.B.To earn a lot of money.C.To finish his degree.4.What does the man suggest?A.The woman should be careful.B.They try to think of a solution.C.They will come downstairs.5.Why is Tracy so happy?A.She has received the latest issue of the journal.B.She has won the first prize for her research.C.She has got her paper published in a journal.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。
湖北省黄冈中学2014年春季高一期中考试英语试题命题人:李文宏张红本试卷分为四部分,满分150分。
考试时间120分钟.第一部分听力(共两节,满分30分)做题时,先将答案划在试卷上.录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C 三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍.1。
What’s the man’s telephone number?A. 8890643 B。
8890634 C。
88706342. Which people does the woman mention?A。
British people B。
French people C. Chinese people3. Who wasn't happy with Fred?A。
The guests B。
His dad C。
The man4. What does the woman want the man to do?A. Come to the partyB. Visit her new officeC. Help her buy some flowers5。
Which of the following is TRUE about Arnold?A。
He was lucky last week.B。
He passed his driver’s test.C。
He had practiced driving for a long time。
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。
2022年秋季九年级期中考试英语试题(考试时间:120分钟满分:120分)第Ⅰ卷听力(共40分)一、听力测试(共三节;计40分)第一节(共6小题;每小题1分,满分6分)听句子。
从下面的所给的A、B、C、D、E、F六个选项中,选出与所听句子内容相符的图片。
听完每个句子后,你将有5秒钟的作答时间。
每个句子读两遍。
A. B. C.D. E. F.1. __________2. __________3. __________4. __________5. __________6. __________第二节(共12小题;每小题2分,满分24分)听下面五段对话。
每段对话后面有几个小题,从题后所给的A、B、C三个选项中选出最佳选项。
听每段对话前,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。
每段对话读两遍。
听第1段对话,回答第7、8小题。
()7. What lesson are they taking?A. A German lesson.B. An English lesson.C. A French lesson.()8. How often does David listen to the tapes?A. Sometimes.B. Once a week.C. Every day.听第2段对话,回答第9、10小题。
()9. Where did Tom go on vacation?A. His uncle’s home.B. His uncle’s form.C. His uncle’s office.()10. What did he do there?A. Watched a movie.B. Ate mooncakes.C. Ate Zhongzi.听第3段对话,回答第11、12小题。
()11. What color is the pen?A. Black.B. White.C. Blue.()12. How much is the pen?A. 10 yuanB. 15 yuanC. 10.5 yuan听第4段对话,回答第13、14、15小题。
湖北省黄冈市黄冈中学2014-2015学年高一上学期期中英语试题本试卷共10页,81题。
全卷满分150分。
考试时间120分钟。
★祝考试顺利★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)听下面五段对话。
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. How will the woman pay?A. By cash.B. By credit card.C. By check.2. Where was the man born?A. In America.B. In Canada.C. In England.3. Which season is it now?A. Spring.B. Summer.C. Winter.4. When will the man get on a plane?A. At 8:00.B. At 8:15.C. At 8:30.5. Where does the woman want to go?A. Spain.B. Sweden.C. Switzerland.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。
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。
6. What can’t Janie understand?A. Her homework.B. Her history test.C. Her English paper.7. Who will the man help?A. His father.B. His sister.C. The woman.听第7段材料,回答第8至10题。
蕲春县2014年秋期中考试九年级数学试题一、填空题(每小题3分,共30分)1、二次函数()y x =-+122的最小值是_____________.2、已知32+是关于x 的一元二次方程042=+-m x x 的一个根,则m=3、抛物线y=14-x 2-)(向左平移2个单位,再向上平移3个单位后的函数关系式为______________.4、如图是蕲春中轴线上的一座桥梁设计图,设计数据如图所示,桥拱是圆弧形,则桥拱的直径为______________.5、如图是二次函数y 1=ax 2+bx +c 和一次函数y 2=mx +n 的图象,观察图象写出y 2≥y 1时,x 的取值范围______________.6、如图,D 是等腰直角三角形ABC 内一点,BC 为斜边,如果将△ABD 绕点A 按逆时针方向旋转到△ACE 的位置,则∠ADE 的度数为______________.7、漕河镇大河口村引进棉花优良品种,指导棉农栽培技术,经过两年棉花产量提高了44%,则这两年棉花产量的平均增长率是 .8、⊙O 是等边三角形ABC 的外接圆,点D 是⊙O 上异于B 、C 的一点,则∠BDC = 9、如图,在Rt△ABC 中,已知∠C =90°,∠B=50º,点D 在边BC 上,BD=2CD,把ΔABC 绕着点D 逆时针旋转m(0<m <180)度后,如果点B 恰好落在初始 Rt△ABC 的边上,那么m= .10、若关于x 的一元二次方程1)12(22++-x k x k =0有两个不相等的实数根,则k 的取值范围是 . 二、选择题:(每小题3分,共30分)11、用配方法解方程2870x x ++=,则配方正确的是( )A .()249x -= B .()249x += C .()2816x -= D .()2857x += 12、 抛物线y=216x 212+-x 的顶点坐标是( ) A .(-6,-3) B .(-6,3) C .(6,3) D .(6,-3) 13、下列图形中,既是轴对称图形,又是中心对称图形的是( )A .B .C .D .E14、下列命题中,①直径是弦;②平分弦的直径必垂直于弦;③相等的圆心角所对的弧相等;④在同圆或等圆中,相等的弦所对的圆周角相等. 正确的个数为( )A .1个B .2个C .3个D .4个15、如图,在⊙O 中,OE 为半径,点D 为OE 的中点,AB 是过点D 且垂直于OE 的弦,点C 是优弧ACB 上任意一点, 则∠ACB 度数是( ) A .30° B. 50° C.60° D .无法确定16、 已知二次函数y=3(x-1)2+k 的图象上有三点A(2,y 1),B(2,y 2),C(-5,y 3),则y 1、 y 2、y 3的大小关系为( )A .y 1.> y 2> y 3 B..y 2> y 1> y 3 C .y 3> y 1> y 2 D .y 3> y 2> y 1 17、在同一直角坐标系中,一次函数y=ax+c 和二次函数y =ax 2+c 的图象大致为( )18、如图,由正方形ABCD 通过一次旋转得到正方形BCFE ,其可能的旋转中心有( )个.A .1B .2C .3D .419、小敏在某次投篮中,球的运动路线是抛物线y=5.3x 512+-的一部分(如图),若命中篮圈中心,则他与篮底的距离l 是( ).A .3.5mB .4mC .4.5mD .4.6m 20、对于一元二次方程20(0)ax bx c a ++=≠,下列说法:①若a+c=0,方程20ax bx c ++=有两个不等的实数根;②若方程20ax bx c ++=有两个不等的实数根,则方程02=++a bx cx 也一定有两个不等的实数根;③若c 是方程20ax bx c ++=的一个根,则一定有10ac b ++=成立;④若m 是方程20ax bx c ++=的一个根,则一定有224(2)b ac am b -=+成立.其中正确地只有( ) A.①② B. ②③ C.③④ D. ①④ 三、解答下列各题:(共7道题,共60分) 21、解方程:230x x --= (5分)E22、如图,已知ABC △的顶点A ,B ,C 的坐标分别是A (-1,-1)B (-5,-4)C (-5,-1). (1)、作出ABC △关于点P(0,-2)中心对称的图形△111C B A ,并直接写出顶点A 1、B 1、C 1的坐标. (2)、将ABC △绕原点O 按顺时针方向旋转90°后得到△222C B A ,画出△222C B A ,并直接写出顶点A 2、B 2、C 2的坐标.(3)、将ABC △沿着射线BA 的方向平移10个单位,后得到△333C B A ,画出△333C B A ,并直接写出顶点A 3、B 3、C 3的坐标.(9分)23、蕲阳精品店以每件21元的价格购进一批商品,该商品可以自行定价,若每件商品售价a 元,则可卖出(350-10a )件,但物价局限定每件商品的利润不得超过20%,商店计划要盈利400元,需要进货多少件?每件商品应定价多少?(7分)24、如图,AB 为半⊙O 的直径,C 为弧AB 上一点,D 为弧AC 的中点,DE ⊥AB 于点E ,交AC于点F.求证:(1)DF=AF ;(2)DE=21AC.(9分)25、漕河镇高德畈村为增加蔬菜的种植面积,一年中修建了一些蔬菜大棚.平均修建每公顷大棚要用的支架、塑料膜等材料的费用为27000元,此外还要购置喷灌设备,这项费用(元)与大棚面积(公顷)的平方成正比,比例系数为9000.每公顷大棚的年平均经济收益为75000元.(1). 若这个村一年中由于修建蔬菜大棚的收益()为60000元.问一年中该村修建了多少公顷蔬菜大棚?(2).若要使扣除修建大棚费用后的收益达到最大,请问应修建多少公顷大棚?并说明理由. (9分)26、如图,抛物线y =21x 2+bx -2与x 轴交于A 、B 两点,与y 轴交于C 点,且A (一1,0). ⑴求抛物线的解析式及顶点D 的坐标; ⑵判断△ABC 的形状,证明你的结论;⑶点M(m ,0)是x 轴上的一个动点,当CM+DM 的值最小时,求m 的值.(9分)27.如图,在平面直角坐标系中,矩形OABC 的两边OA 、OC 分别在x 轴、y 轴的正半轴上,OA=4,OC=2.点P 从点O 出发,沿x 轴以每秒1个单位长的速度向点A 匀速运动,当点P 到达点A 时停止运动,设点P 运动的时间是t 秒.将线段CP 的中点绕点P 按顺时针方向旋转90°得点D ,点D 随点P 的运动而运动,连接DP 、DA . (1)请用含t 的代数式表示出点D 的坐标;(2)求t 为何值时,△DPA 的面积最大,最大为多少?(3)在点P 从O 向A 运动的过程中,△DPA 能否成为直角三角形?若能,求t 的值.若不能,请说明理由;(4)请直接写出随着点P 的运动,点D 运动路线的长.(12分)(第27题图) (备用图1) (备用图2)蕲春县2014年秋期中考试九年级数学试题参考答案一、填空题(每小题3分,共30分)1、 2 ;2、 1 ;3、8x 4x y 2+-=;4、 26m ;5、 -2≤x ≤1 ;6、 45° ;7、 20% ;8、60°或120°;9、80或120 ; 10、 k >41-且k ≠0 ; 二、选择题:(每小题3分,共30分)三、解答下列各题(共7道题,60分) 21、解方程:( 本题5分)x 1。
湖北省黄冈中学2014年高一秋季期中考试数学试题本试卷分第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.第Ⅰ卷(选择题)一、选择题:大题共10小题,每小题5分,共50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{}|6A x N x =∈<,则下列关系式错误的是( )A .0A ∈B .1.5A ∉C .1A -∉D .6A ∈2. 函数()1231log y x x =-+的定义域为( )A .(],1-∞B .(]0,1C .()0,1D .[]0,13. 设集合U R =,集合{}2|20A x x x =->,则U A ð等于( )A .{}|02x x x <>或B .{}|02x x x ≤≥或C .{}|02x x <<D .{}|02x x ≤≤4. 设函数221,1()2,1x x f x x x x ⎧-≤⎪=⎨+->⎪⎩ ,则1(2)f f ⎡⎤⎢⎥⎣⎦的值为( ) A .1516B .2716-C .89D .185. 与函数lg(1)10x y -=相等的函数是( )A .1y x =-B .|1|y x =-C .2y =D .211x y x -=+6. 已知01a b <<<,则( )A .33ba<B .log 3log 3a b >C .22(lg )(lg )a b <D .11()()abee<7. 已知()f x 是偶函数,()g x 是奇函数,且2()()221f x g x x x +=-+,则(1)f -=( )A .3B .3-C .2D .2-8. 函数ln(1)y x =-的图像大致为( )9. 已知2:f x x →是集合A 到集合{}0,1,4B =的一个映射,则集合A 中的元素个数最多有( ) A .3个B .4个C .5个D .6个10.设0a >且1a ≠ ,函数2()log a f x ax x =-在[]3,4上是增函数,则a 的取值范围( )A .1164a ≤<或1a > B .1184a ≤≤或1a > C .1186a ≤<或1a >D .104a <<或1a > 第Ⅱ卷(非选择题)二、填空题:本大题共5小题,每小题5分,共25分.请将答案填在答题卡对应题号的位置上,答错位置,书写不清,模棱两可均不得分.11.已知幂函数()f x x α=的图像过点()4,2,则α=_____________________. 12.计算31log 2327lg0.013-+-=_____________________.13.已知集合{}4,,2b a A a B a ⎧⎫⎪⎪=-=⎨⎬⎪⎪⎩⎭且A B =,则a b +=_____________.14.设奇函数()f x 的定义域为[]5,5-,若当[]0,5x ∈时,()f x 的图像如右图所示,则不等式()0f x <的解集是_____________________.15.设a 为常数且0a <,()y f x =是定义在R 上的奇函数,当0x <时,2()2a f x x x=+-,若2()1f x a ≥-对一切0x ≥都成立,则a 的取值范围为_____________________. 三、解答题:本大题共6小题,共75分.解答应写出文字说明、证明过程或演算步骤. 16.(本小题满分12分)记关于x 的不等式()00x aa x-<>的解集为S ,不等式11x -< 的解集为T .(1)若1a =,求S T 和S T ; (2)若S T ⊆,求a 的取值范围.y17.(本小题满分12分)已知二次函数2()(,)f x ax bx a b R =+∈,若(1)1f =-且函数()f x 的图像关于直线1x =对称. (1)求,a b 的值;(2)若函数()f x 在[](),11k k k +≥上的最大值为8,求实数k 的值.18.(本小题满分12分)已知函数(1)lg2xf x x-=-. (1)求函数()f x 的解析式,并判断()f x 的奇偶性; (2)解关于x 的不等式:()()lg 31f x x ≥+.19.(本小题满分12分)某上市股票在30天内每股的交易价格P (元)与时间t (天)组成有序数对(),t P ,点(),t P 落在图中的两条线段上;该股票在30天内的日交易量Q(1)根据提供的图像,写出该种股票每股交易价格(元)与时间t (天)所满足的函数关系式;(2)根据表中数据,写出日交易量Q (万股)与时间t (天)的一次函数关系式; (3)用y (万元)表示该股票日交易额,写出y 关于t 的函数关系式,并求在这30天内第几天日交易额最大,最大值为多少?tPO30201065220.(本小题满分13分)已知指数函数()y g x =满足:1(3)8g -=,定义域为R 的函数()()1()c g x f x g x -=+是奇函数.(1)求函数()g x 与()f x 的解析式; (2)判断函数()f x 的单调性并证明之;(3)若关于x 的方程()f x m =在[]1,1x ∈-上有解,求实数m 的取值范围.21.(本小题满分14分)已知()f x 对任意的实数,m n 都有:()()()1f m n f m f n +=+-,且当0x >时,有()1f x >. (1)求(0)f ;(2)求证:()f x 在R 上为增函数;(3)若(6)7f =,且关于x 的不等式2(2)()3f ax f x x -+-<对任意的[)1,x ∈-+∞恒成立,求实数a 的取值范围.黄冈中学2014年高一秋季期中考试数学试题参考答案(附评分细则)一、选择题: DBDAC BACCA 二、填空题:11.1212.16- 13.3 14.()()2,02,5- 15.[)1,0-一、选择题1.解析:{}0,1,2,3,4,5A =,故选D2.解析:10x -≥且0x >,解得01x <≤,故选B3.解析:{}|20A x x x =><或,则{}|02U A x x =≤≤ð,故选D4.解析:2(2)2224f =+-=,2111151(2)4416f f f ⎡⎤⎛⎫⎛⎫==-= ⎪ ⎪⎢⎥⎝⎭⎝⎭⎣⎦,故选A 5.解析:lg(1)101(1)x y x x -==->,故选C6.解析:利用指数函数、对数函数的单调性可以判断C 正确,ABD 都错,故选C7.解析:令1x =,得(1)(1)1f g +=,令1x =-,得(1)(1)5f g -+-=两式相加得:(1)(1)(1)(1)6f f g g +-++-=,即2(1)6f -=,(1)3f -= 8.解析:函数的定义域为(),1-∞且在定义域上单调递减,故选C 9.解析:令20,1,4x =,解得:0,1,2x =±±,故选C10.解析:令2()u x ax x =-,则log a y u =,所以()u x 的图像如图所示当1a >时,由复合函数的单调性可知,区间[]3,4落在10,2a ⎛⎤⎥⎝⎦或1,a ⎛⎫+∞⎪⎝⎭上,所以142a ≤或13a <,故有1a > 当01a <<时,由复合函数的单调性可知,[]113,4,2a a ⎡⎫⊆⎪⎢⎣⎭所以132a ≤且14a>解得1164a ≤<,综上所述1a >或1164a ≤<,故选A 二、填空题11.解析:42α=,解得12α= 12.解析:原式=11122326--+=-13.解析:由集合元素的互异性可知:a a -≠且0a ≠,所以0a >所以{},,4A a a =-,{},1,2b B a =-,故1a =且42b=所以1,2a b ==,故3a b +=14.解析:由奇函数的图像关于原点对称可知()0f x <的解集为()()2,02,5-15.解析:当0x =时,()0f x =,则201a ≥-,解得11a -≤≤,所以10a -≤<当0x >时,0x -<,2()2a f x x x -=-+--,则2()()2a f x f x x x=--=++由对勾函数的图像可知,当x a a ===-时,有min ()22f x a =-+所以2221a a -+≥-,即2230a a +-≤,解得31a -≤≤,又0a < 所以30a -≤<,综上所述:10a -≤<三、解答题16.解: (1)()0,2T =1分 当1a =时,()0,1S =2分 ()0,2S T =4分,()0,1ST =6分(2)因为0a >,所以(){}{}|0|0S x x x a x x a =-<=<<8分则()()0,0,2a ⊆,所以2a ≤ 10分又0a >,所以02a <≤12分17.解:(1)由题意可得:(1)1f a b =+=-且12ba-= 4分解得:1,2a b ==-6分(2)()22()211f x x x x =-=--因为1k ≥,所以()f x 在[],1k k +上单调递增7分 所以()2max ()(1)12(1)8f x f k k k =+=+-+= 9分解得:3k =±11分 又1k ≥,所以3k =12分 18.解:(1)令1t x =-,则1x t =+所以()11()lglg211t t f t t t++==-+- 2分所以1()lg(11)1x f x x x+=-<<- 3分注:若没写定义域或定义域错误扣一分 因为()f x 的定义域关于原点对称且1111()lg lg lg ()111x x x f x f x x x x --++⎛⎫⎛⎫-===-=- ⎪ ⎪+--⎝⎭⎝⎭所以()f x 是奇函数6分(2)11lglg(31)31011x x x x x x++≥+⇔≥+>--7分由310x +>得13x >-1311x x x +≥+-,()13101x x x +-+≥-,()131(1)01x x x x +-+-≥- 即2301x x x -≥-,2301x xx -≤-9分即()()()31013101x x x x x x -≤⇔--≤-且1x ≠ 10分解得:0x ≤或113x ≤<11分又13x >-,所以原不等式的解集为11,0,133⎛⎤⎡⎫- ⎪⎥⎢⎝⎦⎣⎭12分注:区间端点错一个扣一分19. (1)当020t ≤≤时,设P at b =+由图像可知此图像过点()0,2和(20,6),故26202b a =⎧⎨=+⎩215b a =⎧⎪∴⎨=⎪⎩, 125P t ∴=+同理可求当2030t <≤时,1810P t ∴=-+ 12,020,518,2030,10t t t N P t t t N ⎧+≤≤∈⎪⎪∴=⎨⎪-+<≤∈⎪⎩ 4分注:少写一个或写错一个扣2分,区间写错或没写t N ∈扣1分(2)设Q ct d =+,把所给表中任意两组数据代入可求得1,40c d =-=, 40,030,Q t t t N ∴=-+<≤∈6分(3)首先日交易额y (万元)=日交易量Q (万股)⨯每股交易价格P (元)()221(15)125020,5160402030,10t t t N y t t t N ⎧--+≤≤∈⎪⎪∴=⎨⎪--<≤∈⎪⎩8分当020t ≤≤时,当15t =时,max 125y =万元9分当2030t <≤时,y 随t 的增大而减小10分故在30天中的第15天,日交易额最大为125万元.12分20.解:(1)设()x g x a =,则31(3)8g a--== 解得:2a =,所以()2xg x =1分所以2()12x xc f x -=+,令(0)0f =得102c -=,所以1c =3分经检验,当1c =时,12()12xxf x -=+为奇函数,符合题意4分所以12()12xxf x -=+(2)()f x 在R 上单调递减5分证明如下:任取12,x x R ∈,且12x x <,则()()()()()()()()12211212121212121212121212121212x x x x x x x x x x f x f x -+--+---=-=++++ ()()()()1212211212122212221212x x x x x x x x x x ++-+---+-=++()()()()2112112122(22)22(21)12121212x x x x x x x x x --⋅-==++++7分因为1220,20xx >>,所以()()1212120x x ++>而12x x <,所以210x x ->,2121x x ->,21210x x -->8分所以()()1211222(21)01212x x x x x -⋅->++,即()()120f x f x ->,12()()f x f x > 所以()f x 在R 上单调递减9分(3)由(2)知()f x 在[]1,1-上单调递减,所以()1()(1)f f x f -≤≤ 即()f x 在[]1,1-上的值域为11,33⎡⎤-⎢⎥⎣⎦11分要使得关于x 的方程()f x m =在[]1,1x ∈-上有解,则 实数m 的取值范围为11,33⎡⎤-⎢⎥⎣⎦13分21.(1)解:令0m n ==,则()()0201f f =-,解得()01f = 3分(2)证明:设12,x x 是R 上任意两个实数,且12x x <,则 令211,m x x n x =-=,则2211()()()1f x f x x f x =-+-5分所以2121()()()1f x f x f x x -=-- 由12x x <得210x x ->,所以21()1f x x -> 故21()()0f x f x ->,即12()()f x f x < 7分所以()f x 在R 上为增函数 (3)由已知条件有:()22(2)()21f ax f x x f ax x x -+-=-+-+故原不等式可化为:()2213f ax x x -+-+< 即()2122f x a x ⎡⎤-++-<⎣⎦而当n N *∈时,()(1)(1)1(2)2(1)2f n f n f f n f =-+-=-+- (3)3(1)3(1)(1)f n f nf n =-+-=⋅⋅⋅⋅⋅⋅=-- 所以(6)6(1)5f f =-,所以(1)2f =故不等式可化为()212(1)f x a x f ⎡⎤-++-<⎣⎦9分由(2)可知()f x 在R 上为增函数,所以()2121x a x -++-<即()2130x a x -++>在[)1,x ∈-+∞上恒成立10分令()2()13g x x a x =-++,即min ()0g x >成立即可(i )当112a +<-即3a <-时,()g x 在[)1,x ∈-+∞上单调递增 则min ()(1)1(1)30g x g a =-=+++>解得5a >-,所以53a -<<- 11分(ii)当112a +≥-即3a ≥-时 有2min111()()(1)30222a a a g x g a +++⎛⎫==-++> ⎪⎝⎭解得11a -<<而31->- ,所以31a -≤< 13分综上所述:实数a 的取值范围是(1)-14分注:(i )(ii)两种情况少考虑一种或计算错一种扣两分,最后综上所述错误扣一分。
第 1 页 共 11 页 湖北省黄冈中学2014年秋季九上英语期中考试试卷解析 黄冈市启黄中学2014年秋季九年级英语期中考试试题
命题:熊小华 校对:周丽娜 熊小华 (考试时间:120分钟 满分:120分) 一、听力测试(共三节;计25分) 第一节(共5小题;每小题1分,满分5分) 听下面5段小对话。从每小题所给的A、B、C三个选项中,选出与对话内容相符的图片。听完每段对话后,你将有5秒钟的作答时间。每段对话仅读一遍。
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4.A. B. C. 5.A. B. C. 第二节(共15小题;每小题1分,满分15分) 听下面6段长对话。每段对话后面有几个小题,从题后所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你将有10秒钟的作答时间。每段对话读两遍。 听第6段对话,回答第6、7小题。 6. What lesson is the girl taking? A. A German lesson. B. An English lesson. C. A French lesson. 7. How often will the boy take the lesson? A. Every day. B. Once a week. C. Twice a week. 听第7段对话,回答第8、9小题。 第 2 页 共 11 页
8. How long haven‟t Steve and Lisa seen each other? A. Two months. B. Two years. C. One year. 9. What problem does Steve have? A. He‟s not good at English. B. He is nervous about physics tests. C. He is afraid of asking the teacher for help. 听第8段对话,回答第10、11小题。 10. Why did Hans go to Beijing? A. To study Chinese. B. To travel. C. To learn about local traffic. 11. How‟s the traffic in Beijing now? A. It‟s busy. B. It‟s terrible. C. It has improved a lot. 听第9段对话,回答第12—14小题。 12. What are they talking about? A. How to spend the weekend. B. How to celebrate their father‟s birthday. C. What to do on their mother‟s birthday. 13. Why doesn‟t Tina buy an MP5? A. Because it‟s not special. B. Because she doesn‟t like it. C. Because it‟s expensive. 14. Whose present is a nice cake? A. Tina‟s. B. Bob‟s. C. Bob‟s aunt‟s. 听第10段对话,回答第15—17小题。 15. Where is the man going? A. To a restaurant. B. To a bank. C. To a police station. 16. Which of the following is RIGHT? A. The bank is in front of the restaurant. B. It takes the man ten minutes to walk there. C. The food in the restaurant is delicious and inexpensive. 17. What time is it now? A. 9:00 am. B. 10:00 am. C. 11:00 am. 听第11段对话,回答第18—20小题。 18. What is Jack doing? A. Reading a book. B. Working on the invention of a handbag. C. Working on the school project. 19. How special is Jack‟s invention? A. It can dance and walk. B. It can play music and fly in the air. C. It can fly in the air and communicate with people. 20. What does Jack‟s mother need a robot to do? A. Do housework. B. Shop. C. Repair old things. 第三节(共5小题;每小题1分,满分5分) 听下面一篇短文。根据你所听到的短文内容,选择能回答所提问题的最佳答案。短文读两遍。 21. Who first came up with the idea for Nothing Day? A. An American. B. An Englishman. C. A Japanese. 22. How do people celebrate Nothing Day? A. They have parties. B. They have a break. C. They send cards. 23. When was the first Nothing Day? A. June 16th, 1937. B. January 16th, 1973. C. June 6th, 1973. 24. Which festival is not mentioned? 第 3 页 共 11 页
A. Halloween. B. Thanksgiving Day. C. Christmas Day. 25. What is suggested as an afternoon activity on Nothing Day? A. Sitting in a park. B. Calling an old friend. C. Having a relaxing meal. Keys: 1-5 BCABA 6-10 BBBBA 11-15 CBCBA 16-20 CACBA 21-25 ABBCA 二、单项选择(共15小题;每小题1分,满分15分) 从所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。 26. —Danny, your are so beautiful. Where did you buy them? —Thanks. I bought them in Wuhan. A. handbag B. cap C. sweater D. gloves Key: D
27. — exciting film we saw yesterday! —I think so. A. What a B. What an C. How an D. How a Key: B 解析:感叹句:What a/ an adj. +可数名词单数+主语+谓语!
28. —I don‟t know how to the old books. —You can give them away to poor children. A. hand in B. take up C. deal with D. give up Key: C 解析:hand in “上交”;take up “培养;开始”;deal with “处理”;give up “放弃”
29. —Do you like reading books? —Yes. Everyone in my class to do more reading in and after class by our teacher. A. are encouraged B. is encouraged C. are encouraging D. encourages Key:B 解析:复合不定代词everyone做主语,视作单数,谓语动词用单数形式。be encouraged to do sth “被鼓励做某事”,该句句意为“我们班的每个人都被老师鼓励在课上和课后多读书。”
30. —How long has Jim been in the factory? —He has been there for two years he left school. A. when B. since C. as soon as D. while Key: B 解析:since 引导的从句可以用于现在完成时中,从句中使用一般过去时。 31. —Do you believe that American flags are made China? —Yes, I do. And you can see they are made silk. A. in; from B. from; in C. of; in D. in; of Key:D 解析:be made in+产地;be made of/ from+材料。通常be made of 指看得出原材料的,be made from指看不出原材料的。从“you can see”得知看得出原材料。 32. —I meeting Jack today because I am still angry with him. —Come on, Mary. You are good friends. A. avoid B. require C. enjoy D. expect Key:A 解析:avoid doing sth“避免做某事”。 33. —Oh, the room is too dirty, Tony! —Sorry, Mom. It yesterday. I forgot to do it. A. didn‟t clean B. isn‟t cleaned C. was cleaned D. wasn‟t cleaned