2015-2016学年度南阳五中秋期第四次月考试卷(学生用卷)

合集下载

2015-2016年河南省南阳市高二上学期数学期中试卷带答案

2015-2016年河南省南阳市高二上学期数学期中试卷带答案

2015-2016学年河南省南阳市高二(上)期中数学试卷一、选择题1.(5分)在等差数列{a n}中,a1=21,a7=18,则公差d=()A.B.C.﹣ D.﹣2.(5分)在△ABC中,若sinA=cosB=,则∠C=()A.45°B.60°C.30°D.90°3.(5分)已知a,b为非零实数,且a<b,则下列命题成立的是()A.a2<b2B.a2b<ab2C.2a﹣2b<0 D.>4.(5分)设等比数列{a n}的公比q=2,前n项和为S n,则=()A.2 B.4 C.D.5.(5分)如果方程x2+(m﹣1)x+m2﹣2=0的两个实根一个小于﹣1,另一个大于1,那么实数m的取值范围是()A.﹣<m<B.﹣2<m<0 C.﹣2<m<1 D.0<m<16.(5分)已知数列{a n}是等差数列,数列{b n}是等比数列,其公比q≠1,且b i >0(i=1,2,3,…),若a1=b1,a11=b11,则()A.a6=b6B.a6>b6C.a6<b6D.a6>b6或a6<b67.(5分)平面区域如图所示,若使目标函数z=x+ay(a>0)取得最大值的最优解有无穷多个,则a的值是()A.B.1 C.D.48.(5分)等差数列{a n}的公差d<0,且a12=a112,则数列{a n}的前n项和S n取得最大值时的项数n是()A.5 B.6 C.5或6 D.6或79.(5分)若关于x的不等式2x2﹣8x﹣4﹣a>0在1<x<4内有解,则实数a的取值范围是()A.a<﹣4 B.a>﹣4 C.a>﹣12 D.a<﹣1210.(5分)△ABC中,AB=,AC=1,∠B=30°,则△ABC的面积等于()A.B.C.D.11.(5分)已知a>0,b>0,,若不等式2a+b≥4m恒成立,则m的最大值为()A.10 B.9 C.8 D.712.(5分)设等差数列{a n}(n∈N+)的前n项和为S n,该数列是单调递增数列,若S4≥10,S5≤15,则a4的取值范围是()A.(] B.(]C.(﹣∞,4]D.(3,+∞)二、填空题13.(5分)设公比为q的等比数列{a n}的前n项和为S n,若S n+1、S n、S n+2成等差数列,则q=.14.(5分)在约束条件下,目标函数z=ax+by(a>0,b>0)的最大值为1,则ab的最大值等于.三、解答题(共7小题,满分80分)15.(12分)如图,在△ABC中,∠ABC=90°,AB=,BC=1,P为△ABC内一点,∠BPC=90°.(1)若PB=,求PA;(2)若∠APB=150°,求tan∠PBA.16.(10分)已知数列{a n}满足数列{b n}的前n项和S n=n2+2n.(1)求数列{a n},{b n}的通项公式;(2)设c n=a n b n,求数列{c n}的前n项和T n.17.(10分)已知关于x的不等式ax2+5x+c>0的解集为{x|<x<},(Ⅰ)求a,c的值;(Ⅱ)解关于x的不等式ax2+(ac+b)x+bc≥0.18.(12分)已知三角形ABC中,A为锐角,且b=2asinB(1)求A,(2)若a=7,三角形ABC的面积为10,求b+c的值.19.(12分)某造纸厂拟建一座平面图形为矩形且面积为162 平方米的三级污水处理池,池的深度一定(平面图如图所示),如果池四周围墙建造单价为400 元/米,中间两道隔墙建造单价为248 元/米,池底建造单价为80 元/米2,水池所有墙的厚度忽略不计.(1 )试设计污水处理池的长和宽,使总造价最低,并求出最低总造价;(2 )若由于地形限制,该池的长和宽都不能超过16 米,试设计污水池的长和宽,使总造价最低.20.(12分)三角形ABC中,a(cosB+cosC)=b+c,(1)求证A=(2)若三角形ABC的外接圆半径为1,求三角形ABC周长的取值范围.21.(12分)设数列{a n}的前n项的和S n=a n﹣×2n+1+(n=1,2,3,…)(Ⅰ)求首项a1(Ⅱ)证明数列{a n+2n}是等比数列并求a n.2015-2016学年河南省南阳市高二(上)期中数学试卷参考答案与试题解析一、选择题1.(5分)在等差数列{a n}中,a1=21,a7=18,则公差d=()A.B.C.﹣ D.﹣【解答】解:由等差数列的通项公式可得a7=a1+6d,∴18=21+6d,解得d=.故选:D.2.(5分)在△ABC中,若sinA=cosB=,则∠C=()A.45°B.60°C.30°D.90°【解答】解:△ABC中,若sinA=cosB=,则∠B=60°,∴∠A=30°,∠C=90°,故选:D.3.(5分)已知a,b为非零实数,且a<b,则下列命题成立的是()A.a2<b2B.a2b<ab2C.2a﹣2b<0 D.>【解答】解:A 不正确,如a=﹣3,b=﹣1,显然a2<b2不成立.B 不成立,如a=﹣3,b=1时,显然a2b<ab2不成立.D不正确,如a=﹣3,b=1时,>显然不成立.∵函数y=2x在定义域R上是个增函数,∴2a<2b,∴2a﹣2b<0,故选:C.4.(5分)设等比数列{a n}的公比q=2,前n项和为S n,则=()A.2 B.4 C.D.【解答】解:由等比数列的求和公式和通项公式可得:==,故选:C.5.(5分)如果方程x2+(m﹣1)x+m2﹣2=0的两个实根一个小于﹣1,另一个大于1,那么实数m的取值范围是()A.﹣<m<B.﹣2<m<0 C.﹣2<m<1 D.0<m<1【解答】解:令f(x)=x2+(m﹣1)x+m2﹣2,则由题意可得,求得0<m<1,故选:D.6.(5分)已知数列{a n}是等差数列,数列{b n}是等比数列,其公比q≠1,且b i >0(i=1,2,3,…),若a1=b1,a11=b11,则()A.a6=b6B.a6>b6C.a6<b6D.a6>b6或a6<b6【解答】解:由题意可得a1+a11=b1+b11=2a6.∵公比q≠1,b i>0,∴b1+b11>2=2b6,∴2a6>2b6,即a6>b6,故选:B.7.(5分)平面区域如图所示,若使目标函数z=x+ay(a>0)取得最大值的最优解有无穷多个,则a的值是()A.B.1 C.D.4【解答】解:∵z=x+ay(a>0),∴y=﹣x+,∵目标函数z=x+ay(a>0)取得最大值的最优解有无穷多个,∴﹣=k AB==﹣,∴a=,故选:A.8.(5分)等差数列{a n}的公差d<0,且a12=a112,则数列{a n}的前n项和S n取得最大值时的项数n是()A.5 B.6 C.5或6 D.6或7【解答】解:由,知a1+a11=0.∴a6=0,故选:C.9.(5分)若关于x的不等式2x2﹣8x﹣4﹣a>0在1<x<4内有解,则实数a的取值范围是()A.a<﹣4 B.a>﹣4 C.a>﹣12 D.a<﹣12【解答】解:原不等式2x2﹣8x﹣4﹣a>0化为:a<2x2﹣8x﹣4,只须a小于y=2x2﹣8x﹣4在1<x<4内的最大值时即可,∵y=2x2﹣8x﹣4在1<x<4内的最大值是﹣4.则有:a<﹣4.故选:A.10.(5分)△ABC中,AB=,AC=1,∠B=30°,则△ABC的面积等于()A.B.C.D.【解答】解:由AB=,AC=1,cosB=cos30°=,根据余弦定理得:AC2=AB2+BC2﹣2AB•BCcosB,即1=3+BC2﹣3BC,即(BC﹣1)(BC﹣2)=0,解得:BC=1或BC=2,当BC=1时,△ABC的面积S=AB•BCsinB=××1×=;当BC=2时,△ABC的面积S=AB•BCsinB=××2×=,所以△ABC的面积等于或.故选:D.11.(5分)已知a>0,b>0,,若不等式2a+b≥4m恒成立,则m的最大值为()A.10 B.9 C.8 D.7【解答】解:∵a>0,b>0,∴2a+b>0∵,∴2a+b=4(2a+b)()=4(5+)≥36,∵不等式2a+b≥4m恒成立,∴36≥4m,∴m≤9,∴m的最大值为9,故选:B.12.(5分)设等差数列{a n}(n∈N+)的前n项和为S n,该数列是单调递增数列,若S4≥10,S5≤15,则a4的取值范围是()A.(] B.(]C.(﹣∞,4]D.(3,+∞)【解答】解:∵等差数列{a n是单调递增数列,若S4≥10,S5≤15,∴4a1+6d≥10 ①5a1+10d≤15 ②(﹣1)①+②a5≤50<d≤1,由②得,a3≤3,∴故选:A.二、填空题13.(5分)设公比为q的等比数列{a n}的前n项和为S n,若S n+1、S n、S n+2成等差数列,则q=﹣2.【解答】解:记等比数列{a n}的通项为a n,则a n+1=a n•q,a n+2=a n•q2,又∵S n+1、S n、S n+2成等差数列,∴S n﹣S n+1=S n+2﹣S n,即﹣a n•q=a n•q+a n•q2,∴q2+2q=0,∴q=﹣2,故答案为:﹣2.14.(5分)在约束条件下,目标函数z=ax+by(a>0,b>0)的最大值为1,则ab的最大值等于.【解答】解:约束条件对应的平面区域如图3个顶点是(1,0),(1,2),(﹣1,2),由图易得目标函数在(1,2)取最大值1,此时a+2b=1,∵a>0,b>0,∴由不等式知识可得:1≥∴ab,当且仅当a=,b=时,取等号∴ab的最大值等于故答案为:三、解答题(共7小题,满分80分)15.(12分)如图,在△ABC中,∠ABC=90°,AB=,BC=1,P为△ABC内一点,∠BPC=90°.(1)若PB=,求PA;(2)若∠APB=150°,求tan∠PBA.【解答】解:(I)在Rt△PBC中,=,∴∠PBC=60°,∴∠PBA=30°.在△PBA中,由余弦定理得PA2=PB2+AB2﹣2PB•ABcos30°==.∴PA=.(II)设∠PBA=α,在Rt△PBC中,PB=BCcos(90°﹣α)=sinα.在△PBA中,由正弦定理得,即,化为.∴.16.(10分)已知数列{a n}满足数列{b n}的前n项和S n=n2+2n.(1)求数列{a n},{b n}的通项公式;(2)设c n=a n b n,求数列{c n}的前n项和T n.【解答】解(1)∵∴数列{a n}是以1为首项以3为公办的等比数列∴∵S n=n2+2n当n≥2时,b n=s n﹣s n﹣1=n2+2n﹣(n﹣1)2+2(n﹣1)=2n+1当n=1时,b1=s1=3适合上式∴b n=2n+1(2)由(1)可知,c n=a n b n=(2n+1)•3n﹣1∴T n=3•1+5•3+7•32+…+(2n+1)•3n﹣13T n=3•3+5•32+…+(2n+1)•3n两式相减可得,﹣2T n=3+2(3+32+33+…+3n﹣1)﹣(2n+1)•3n=3=2n•3n∴17.(10分)已知关于x的不等式ax2+5x+c>0的解集为{x|<x<},(Ⅰ)求a,c的值;(Ⅱ)解关于x的不等式ax2+(ac+b)x+bc≥0.【解答】解:(Ⅰ)由题得a<0且,是方程ax2+5x+c=0的两个实数根则=﹣,=,解得a=﹣6,c=﹣1,(Ⅱ)由a=﹣6,c=﹣1,原不等式化为﹣x2+(6+b)x﹣b≥0,即(6x﹣b)(x﹣1)≤0.①当即b>6时,原不等式的解集为[1,];②当=1即b=6时,原不等式的解集为{1};③当1即b<6时,原不等式的解集为[,1];综上所述:当即b>6时,原不等式的解集为[1,];当b=6时,原不等式的解集为{1};当b<6时,原不等式的解集为[,1];18.(12分)已知三角形ABC中,A为锐角,且b=2asinB(1)求A,(2)若a=7,三角形ABC的面积为10,求b+c的值.【解答】解:﹙1﹚由正弦定理知a=2RsinA,b=2RsinB,∴×2RsinB=2×2RsinAsinB,sinB≠0,∴sinA=且A为锐角,∴A=60°(2)∵S=bcsinA=bc×=10,∴即解得:bc=40,∴由余弦定理可求得:49=b2+c2﹣2bccosA=(b+c)2﹣3bc=(b+c)2﹣120,∴b+c=13.19.(12分)某造纸厂拟建一座平面图形为矩形且面积为162 平方米的三级污水处理池,池的深度一定(平面图如图所示),如果池四周围墙建造单价为400 元/米,中间两道隔墙建造单价为248 元/米,池底建造单价为80 元/米2,水池所有墙的厚度忽略不计.(1 )试设计污水处理池的长和宽,使总造价最低,并求出最低总造价;(2 )若由于地形限制,该池的长和宽都不能超过16 米,试设计污水池的长和宽,使总造价最低.【解答】解:(1)设污水处理池的宽为x米,则长为米.则总造价f(x)=400×(2x+2×)+248×2x+80×162=1296x++12960=1296(x+)+12960≥1296×2×+12960=38880(元),当且仅当x=(x>0),即x=10时取等号.∴当长为16.2 米,宽为10 米时总造价最低,最低总造价为38 880 元.(2)由限制条件知,∴10≤x≤16设g(x)=x+(10≤x≤16).g(x)在[10,16]上是增函数,∴当x=时,g(x)有最小值,即f(x)有最小值.∴当长为16 米,宽为10米时,总造价最低.20.(12分)三角形ABC中,a(cosB+cosC)=b+c,(1)求证A=(2)若三角形ABC的外接圆半径为1,求三角形ABC周长的取值范围.【解答】解:(1)证明:∵a(cosB+cosC)=b+c,∴由余弦定理可得:a+a=b+c,∴整理可得:(b+c)(a2﹣b2﹣c2)=0,∵b+c>0,∴a2=b2+c2,∴A=,得证.(2)∵三角形ABC的外接圆半径为1,A=,∴a=2,∴b+c=2(sinB+cosB)=2sin(B+),∵0,<B+<,∴2<b+c,∴4<a+b+c≤2,∴三角形ABC周长的取值范围是:(4,2+2].21.(12分)设数列{a n }的前n 项的和S n =a n ﹣×2n +1+(n=1,2,3,…) (Ⅰ)求首项a 1(Ⅱ)证明数列{a n +2n }是等比数列并求a n .【解答】(I )解:∵S n =a n ﹣×2n +1+(n=1,2,3,…), ∴当n=1时,a 1=S 1=﹣+,解得a 1=2.(II )证明:当n ≥2时,S n ﹣1=﹣+, 可得a n =a n ﹣×2n +1+﹣(﹣+),化为:a n =4a n ﹣1+2n . ∴=,∴数列{a n +2n }是等比数列,首项为4,公比为4. ∴a n +2n =4n , ∴a n =4n ﹣2n .赠送初中数学几何模型【模型二】半角型:图形特征:45°4321DA1FDAB正方形ABCD 中,∠EAF =45° ∠1=12∠BAD 推导说明:1.1在正方形ABCD 中,点E 、F 分别在BC 、CD 上,且∠FAE =45°,求证:EF =BE +DFE-a1.2在正方形ABCD中,点E、F分别在BC、CD上,且EF=BE+DF,求证:∠FAE=45°DEa+b-aa45°A BE挖掘图形特征:a+bx-aa 45°DBa+b-a45°A运用举例:1.正方形ABCD 的边长为3,E 、F 分别是AB 、BC 边上的点,且∠EDF =45°.将△DAE 绕点D 逆时针旋转90°,得到△DCM . (1)求证:EF =FM(2)当AE =1时,求EF 的长.E3.如图,梯形ABCD 中,AD ∥BC ,∠C =90°,BC =CD =2AD =4,E 为线段CD 上一点,∠ABE=45°.(1)求线段AB的长;(2)动点P从B出发,沿射线..BE运动,速度为1单位/秒,设运动时间为t,则t为何值时,△ABP为等腰三角形;(3)求AE-CE的值.变式及结论:4.在正方形ABCD中,点E,F分别在边BC,CD上,且∠EAF=∠CEF=45°.(1)将△ADF绕着点A顺时针旋转90°,得到△ABG(如图1),求证:△AEG≌△AEF;(2)若直线EF与AB,AD的延长线分别交于点M,N(如图2),求证:EF2=ME2+NF2;(3)将正方形改为长与宽不相等的矩形,若其余条件不变(如图3),请你直接写出线段EF,BE,DF之间的数量关系.F。

2015-2016学年河南省南阳市五校联考高一(下)第二次月考英语试卷

2015-2016学年河南省南阳市五校联考高一(下)第二次月考英语试卷

2015-2016学年河南省南阳市五校联考高一(下)第二次月考英语试卷一、第Ⅰ卷第一部分阅读理解(本大题共两节,每小题8分,共40分)第一节(共4小题,每小题8分,满分30分)阅读下列短文,从每题所给的A,B,C,D四个选项中,选出最佳选项.1.(8分)I was sleeping in my room when my bed started shaking and a loud noise was heard.I woke up and my mom was screaming my name.Next moment I was running along with my younger sister,mom and dad.Before I ran out of the door,I realized my elder sister hadn't come out yet.So I screamed her name at the top of my voice.My mom said she had gone to her class.Then the four of us,along with many others,were running on the staircase.We lived on the seventh floor,so I thought we would not be able to make it and the building would fall before we managed to reach even the fourth floor.My dad's head was injured by something falling down.I did try to put my hand over his head.When we reached the sixth floor,the building split into two.We had no way to get down.The next thing I remember is silence.There were around 30people on the staircase and none could react.Five minutes later,someone opened the door of the sixth floor flat.We all went in.We were wondering how we would get down.From the balcony of the sixth floor flat,I saw people standing on the ground floor.All eyes were stuck on us.I could see my elder sister crying.Our first hope of surviving came when a worker climbed a rope to where we were.That was,the first time we thought maybe we could get down.Half an hour passed and we were still trapped.Finally RSS people arrived with ropes.They got people down one by one.My biggest worry was how my dad would get down.Finally after two and a half hours,we all got down.That day we saw the power of nature.It has taken more than two years to build the flats and it took just one and a half minutes to destroy the structure.1.What is this passage mainly about?A.Ways to survive an earthquake.B.Reasons why earthquakes happen.C.The love of parents in an earthquake.D.The writer's experience in an earthquake.2.When the building split into two,the writer and his familyA.were still sleepingB.were trapped on the sixth floorC.were looking for a family memberD.were running from the seventh floor to the sixth floor3.The first time the writer thought they would probably survive was whenA.he was encouraged by people on the ground floorB.someone opened the door of the sixth floor flatC.a worker climbed up on a ropeD.RSS people arrived with ropes4.The earthquake made the writer realize thatA.there is always hope for peopleB.the power of nature is really greatC.natural disasters can happen any timeD.human beings are strong in natural disasters.2.(8分)Kids will often ignore(忽视)your requests for them to shut off the TV,start their chores,or do their homework as a way to avoid following your directions.Before you know it,you've started to sound like a broken record as you repeatedly ask them to do their assignments,clean their rooms,or take out the trash.Rather than saying,"Do your chores now."You'll be more effective if you set a target time for when the chores have to be completed.So instead of arguing about starting chores,just say,"If chores aren't done by 4p.m.,here are the consequences."Then it's up to your child to complete the chores.Put the ball back in their court.Don't argue or fight with them,just say,"That's the way it's going to be."It shouldn't be punitive(惩罚性的)as much as it should be persuasive."If yourchores aren't done by 4p.m.,then no video game time until chores are done.And if finishing those chores runs into homework time,that's going to be your loss."On the other hand,when dealing with homework,keep it very simple.Have a time when homework starts,and at that time,all electronics go off and do not go back on until you see that their homework is done.If your kids say they have no home﹣work,then they should use that time to study or read.Either way,there should be a time set aside when the electronics are off.When a kid wears his iPod or headphones when you're trying to talk to him,make no bones about it;he is not ignoring you,he is disrespecting you.At that point,everything else should stop until he takes the earplugs out of his ears.Don't try to communicate with him when he's wearing headphones﹣﹣even if he tells you he can hear you.Wearing them while you're talking to him is a sign of disrespect.Parents should be very tough about this kind of thing.Remember mutual respect becomes more important as children mature.5.According to the passage,it seldom happens that.A.kids turn a deaf ear to their parents'requestsB.parents'directions sound like a broken recordC.children are ready to follow their parents'directionsD.parents are unaware of what they are repeating to their kids•6.Parents will be able to deal with their children more effectively if they.A.avoid direct ways of punishmentB.make them do things at their requestC.argue and fight with their childrenD.allow their children to behave on their own7.It can be inferred from the passage that.A.parents should take off his headphones when trying to have a talk with their childB.it will make no difference that a kid is wearing his earplugs while talking to his parentsC.parents shouldn't give in to their kid when he shows no sign of respectD.kids'purposely talking to their parents with iPod gives them a sense of power and control8.The main idea of the passage is.A.that respecting each other is more important than anything elseB.how kids behave to ignore and disrespect their parentsC.that children should make choices and decisions on their ownD.how parents can deal with their kids'behavior effectively.3.(6分)Most American students go to traditional public schools.There are about 88,000public schools all over the US.Some students attend about 3,000independent public schools called charter schools.Charter schools are selfgoverning.Private companies operate some charter schools.They are similar in some ways to traditional public schools.They receive tax just as other public schools do.Charter schools must prove to local or state governments that their students are learning.These govern﹣ments provide the schools with the agreement called a charter that permits them to operate.Charter schools are different because they don't have to obey most laws governing traditional public schools.Local,state or federal governments cannot tell them what to teach.Each school can choose its own goals and decide the ways it wants to reach them.Class size is usually smaller than in traditional public schools.Governments strongly support charter schools as a way to reorganize public schools that are failing to educate students.But some education agencies and unions oppose charter schools.One teachers'union has just made public the results of the first national study comparing the progress of students in traditional schools and charter schools.The American Federation of Teachers criticized the government's delay in releasing the results of the study,which is called the National Assessment of Educational Progress.Union education experts say the study shows that charter school students performed worse in math and reading tests than students in regular public schools.Some experts say the study is not a fair look at charter schools because students inthose schools have more problems than students in traditional schools.Other education experts say the study results should make charter school officials demand more student progress.9.If a private company wants to operate a charter school,it must.A.try new methods of teachingB.prove its management abilityC.obey all local and state lawsD.get the government's permission10.Charter schools are independent because.A.they make greater progressB.their class size is smallerC.they enjoy more freedomD.they oppose traditional ways11.What can we learn from the text?A.More students choose to attend charter schools.B.Charter schools are better than traditional schools.C.Students in charter schools are well educated.D.People have different opinions about charter schools.4.(8分)July 28th,2003 London﹣It hasn't been like this since the death of Diana.Britain has been suffering from a national nervous breakdown ever since David Beckham,handsome idol of the Manchester United Soccer Team,announced that he was leaving to play for Real Madrid.The Sun set up a Beckham"grief(悲伤)help line"and had a lot of calls from his fans.One caller even said he was considering killing himself.A man who has"Beckham"tattooed on his arm said he wanted to cut it off."I cried myself to sleep after hearing the terrible news,"said grandmother Mary Richards,aged 85.A London taxi driver asked,"Has the world gone mad?He's only a footballer!"But he was mistaken.A footballer is the least of what David Beckham is.In the period of soccer that will come to be known as B.B.﹣Before Beckham﹣the sport was a team game.What mattered was the club,the team and the player inthat order.Then in the mid1990s,David Beckham﹣or"Becks"who is known in that familiar shortened form the British like to call their working class hero came along,and changed the face of soccer.It wasn't his right foot that changed the game,but his photogenic face.And the fact is that he used it to become one of the most recognizable and richest athletes in the world,receiving a salary of 8 million per year and earning at least 17 million more in advertisements.You can never imagine that his move from Manchester United to Real Madrid is 40 million.Beckham interests not only those who have no interest in the club for which he plays,but those who have no interest in soccer.He is the most recognized sportsman in Asia and he's even managed to interest American﹣s.The 27﹣year﹣old,tongue ﹣tied,surprisingly shy working﹣class boy from London's East End,has turned himself into a soccer virus,one that has made the whole world mad.12.What does the underlined word"breakdown"most probably mean in the text?A.A feeling of being nervous.B.A sudden feeling of weakening the mind.C.A feeling of being regretful.D.A sudden failure in operation.13.According to the text,after hearing the news that Beckham was leaving to play for Real Madrid,A.many people called BeckhamB.many people called the SunC.a man killed himselfD.a man cut off one of his arms14.According to the author,Beckham.A.changed the size and shape of soccerB.changed the rules of soccerC.used his face to become famousD.gets a salary of 65 million a year15.We can infer from the text that.A.maybe East End used to be one poor area in LondonB.the Sun is a telephone company in EnglandC.Beckham has got a certain kind of diseaseD.Beckham's move to Real Madrid reminded people of the death of Diana.二、第二节(共1小题;每小题10分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.5.(10分)Most of us lead a busy life.(16)We think,"If I reached my goal,then I would be happy",or"If I could get a better job,then I would enjoy life."But why not enjoy life right now?Firstly,take time to notice and appreciate the beauty in your own surroundings.(17)"There is a great big world of wonder and beauty around us!"And as Brodersen explains"Look for the beauty of the sunrise and of a friend's smile that brightens your day.Open your eyes to see beauty you might not normally see.Doing so helps to cheer you up."Secondly,taking time to experience some simple pleasures also can bring joy to your heart and ease your stress.Take me for example.(18)One universal simple pleasure is finding things that make you laugh.Make time to laugh every day.Thirdly,don't take your family and friends for granted.Rich,rewarding relationships add greatly to the enjoyment of life.When you think of some﹣one,why not call,email or write them?(19)As Wayne Lawton explains,"Invest time in relationships.Remove the attitude,what's in it for me?Happiness is found in putting other's interests,desires and concerns ahead of our own whenever possible.Selfishness is a dead end street."(20)A.I delight in simple things like my favorite tea drink,a bubble bath or family photos.B.In my spare time,I enjoy collecting stamps and reading novels.C.Driven by the"urgent",we forget to enjoy life.D.So please treasure relationship.E.You need to travel far to find beauty.F.Be aware of beauty in nature.G.A short email or phone call can make a world of difference to someone.三、第二部分英语知识运用(共两节,满分30分)第一节完形填空(共1小题,每小题1.5分,满分30分)阅读下面短文,从短文后各题所给的四个选项(A,B,C和D)中,选择出可以填入空白处的最佳选项.6.(30分)When I was a college student,I did a lot of traveling abroad.That was because a professor(21)me to do so.She said,"Now is the time for you to travel around the world.(22)your knowledge through actual experiences and have fun!"I(23)her.Since I started to work for a(24)company,however,I have done most of my traveling through the Internet.By using the Internet,I have seen the(25)of many cities on my computer screen.And I have really made business (26),too.With the help of the Internet,I have also got(27)about food indifferent countries.Therefore,I was beginning to feel that actual trips were(28)necessary until I happened to read a famous chef's(厨师)comment on the Internet.He said,"It is very difficult to have real Italian food in a foreign country,because we enjoy food and the(29)around us at the same time.So why don't you fly over to Italy and enjoy real Italian(30)?"Those words reminded me of my(31)advice.As information technology(32),you might be able to do without making some real trips.But this also means that you will miss the various (33)you can get from traveling.Today there are people who(34)direct communication with others and spend much of their time on the Internet.It is not surprising to see a group of people (35)not with each other but into their micro phones.It seems as if such people are(36)by an invisible wall.They seem to be losing out on a good chance to(37)and talk with other people.I do not think that they are takinggood advantage of information technology.We should use information technology as a tool to make our daily(38)more fruitful.However,we should never let it (39)our time for face﹣to﹣face communication.Let's make use of information technology more(40),and have great fun in experiencing the actual world.21.A.promised B.allowed C.hurried D.encouraged 22.A.build up B.use C.practise D.exchange 23.A.agreed with B.learnedC.followed D.obeyedfrom24.A.computer B.food C.clothing D.machine 25.A.life B.rivers C.sights D.houses 26.A.plans B.bargain C.progress D.trips 27.A.information B.taste C.cooks D.feelings 28.A.even more B.no longer C.much D.actually 29.A.people B.drink C.atmosphere D.environment 30.A.shoes B.dishes C.customers D.situations 31.A.friend's B.parents'C.professor's D.boss' 32.A.produces B.advertises C.forms D.advances 33.A.news B.pleasures C.troubles D.places 34.A.avoid B.keep C.lose D.enjoy 35.A.meeting B.talking C.communicating D.traveling 36.A.stopped B.met C.surrounded D.hurt 37.A.look at B.employ C.travel D.meet 38.A.communication B.study C.work D.action 39.A.spare B.increase C.reduce D.make use of 40.A.wisely B.correctly C.quickly D.slowly.四、第Ⅱ卷第二节(共1小题;每小题1.5分,满分15分)阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式.请将答案写在答题卡上,写在本试卷上无效.7.(15分)I am a junior in high schoo(41)There is a lady at my school1 job is to hand out call﹣slips(索书单)and prevent students from leaving campus(42)permission.Before today I had never seen her smile.The other day my friends and I were eating in the cafeteria and I saw her walking around.When she came(43)(close)to us,I could see she was crying.She pulled out a tissue and quickly wiped her eyes.I thought to myself that this lady is sounder﹣appreciated and needs(44)(recognize)for all her hard work.So I wrote a note telling her that the students appreciated everything she did and(45)her contribution to our school made a difference in all of our lives.I signed it"Some thankful students"and slipped it into(46)envelope.Then I realized I didn't even know her name.I asked all of my professors but(47)knew her name.I finally went to ask the lady at student services and(48)(tell)that her name is Kathy.I bought her a bouquet of(49)(colour)sunflowers and taped the envelope to it.I brought the flowers to school and left(50)in her office.She came into my third period class shortly afterwards to deliver a call﹣slip,and there it was﹣a smile on her face!五、第三部分写作(共两节,满分10分)第一节短文改错(共1小题;每小题10分,满分10分)8.(10分)文中共有10处语言错误,每句中最多有两处.每处错误仅涉及一个单词的增加、删除或修改.增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词.删除:把多余的词用斜线(\)画掉.修改:在错的词下划一横线,并在该词下面写出修改后的词.注意:1.每处错误及其修改均仅限一词.2.只允许修改10处,多者(从第11处起)不计分.I visited my aunt in the countryside near the city last week.I was surprising to see great changes had been taken place in the countryside.Take my aunt's family forexample.We supply precious trees and flowers to the stores in the city and have ten workers working for themselves.Their family's income reached as much 100,000yuanlast year.Not onlydid they have a house,a car andcomputers,they can also afford a trip abroad every year.When asking what else they needed most,they said thatthey wanted to learn a few English so that they could do business withforeigners directly.To their delighted,my cousin can use that he has learntfrom university to help them with overseas trade.六、第二节:.书面表达(满分25分)9.(25分)假定你是李华,亚洲冬季运动会将在你居住的地方举办,现在正在招募志愿者,你希望成为其中一员.请按要求用英文给组委会写一封申请信,内容应包括:个人情况:年龄、性别、学历;个人条件:英语好、爱好体育、善于交往、乐于助人、熟悉本地情况;承诺:提供最佳服务.注意:1.词数100左右;2.可适当增加细节,以使行文连贯.参考词汇:申请apply (v.),application (n.);志愿者volunteerDear Sir/Madam,My name is Li Hua.I would like to work as a volunteer for the Winter Asian Games.2015-2016学年河南省南阳市五校联考高一(下)第二次月考英语试卷参考答案与试题解析一、第Ⅰ卷第一部分阅读理解(本大题共两节,每小题8分,共40分)第一节(共4小题,每小题8分,满分30分)阅读下列短文,从每题所给的A,B,C,D四个选项中,选出最佳选项.1.(8分)I was sleeping in my room when my bed started shaking and a loud noise was heard.I woke up and my mom was screaming my name.Next moment I was running along with my younger sister,mom and dad.Before I ran out of the door,I realized my elder sister hadn't come out yet.So I screamed her name at the top of my voice.My mom said she had gone to her class.Then the four of us,along with many others,were running on the staircase.We lived on the seventh floor,so I thought we would not be able to make it and the building would fall before we managed to reach even the fourth floor.My dad's head was injured by something falling down.I did try to put my hand over his head.When we reached the sixth floor,the building split into two.We had no way to get down.The next thing I remember is silence.There were around 30people on the staircase and none could react.Five minutes later,someone opened the door of the sixth floor flat.We all went in.We were wondering how we would get down.From the balcony of the sixth floor flat,I saw people standing on the ground floor.All eyes were stuck on us.I could see my elder sister crying.Our first hope of surviving came when a worker climbed a rope to where we were.That was,the first time we thought maybe we could get down.Half an hour passed and we were still trapped.Finally RSS people arrived with ropes.They got people down one by one.My biggest worry was how my dad would get down.Finally after two and a half hours,we all got down.That day we saw the power of nature.It has taken more than two years to build the flats and it took just one and a half minutes to destroy the structure.1.What is this passage mainly about?DA.Ways to survive an earthquake.B.Reasons why earthquakes happen.C.The love of parents in an earthquake.D.The writer's experience in an earthquake.2.When the building split into two,the writer and his family BA.were still sleepingB.were trapped on the sixth floorC.were looking for a family memberD.were running from the seventh floor to the sixth floor3.The first time the writer thought they would probably survive was when C A.he was encouraged by people on the ground floorB.someone opened the door of the sixth floor flatC.a worker climbed up on a ropeD.RSS people arrived with ropes4.The earthquake made the writer realize that BA.there is always hope for peopleB.the power of nature is really greatC.natural disasters can happen any timeD.human beings are strong in natural disasters.【解答】1.D.主旨大意题.通读全文It has taken more than two years to build the flats and it took just one and a half minutes to destroy the structure,可知作者讲述了他在一次地震中的逃生经历,故选D.2.B.细节理解题.根据第一段的When we reached the sixth floor,the building split into two.We had no way to get down.可知作家和他的家人被困在六楼;应选B.3.C.细节理解题.根据第三段的Our first hope of surviving came when a worker climbed a rope to where we were.可知当一个工人爬上一根绳子作者有了幸存的希望;应选C.4.B.细节理解题.根据末段的That day we saw the power of nature.可知那次地震让作者认识到了自然界的力量;故选B.2.(8分)Kids will often ignore(忽视)your requests for them to shut off the TV,start their chores,or do their homework as a way to avoid following your directions.Before you know it,you've started to sound like a broken record as you repeatedly ask them to do their assignments,clean their rooms,or take out the trash.Rather than saying,"Do your chores now."You'll be more effective if you set a target time for when the chores have to be completed.So instead of arguing about starting chores,just say,"If chores aren't done by 4p.m.,here are the consequences."Then it's up to your child to complete the chores.Put the ball back in their court.Don't argue or fight with them,just say,"That's the way it's going to be."It shouldn't be punitive(惩罚性的)as much as it should be persuasive."If your chores aren't done by 4p.m.,then no video game time until chores are done.And if finishing those chores runs into homework time,that's going to be your loss."On the other hand,when dealing with homework,keep it very simple.Have a time when homework starts,and at that time,all electronics go off and do not go back on until you see that their homework is done.If your kids say they have no home﹣work,then they should use that time to study or read.Either way,there should be a time set aside when the electronics are off.When a kid wears his iPod or headphones when you're trying to talk to him,make no bones about it;he is not ignoring you,he is disrespecting you.At that point,everything else should stop until he takes the earplugs out of his ears.Don't try to communicate with him when he's wearing headphones﹣﹣even if he tells you he can hear you.Wearing them while you're talking to him is a sign of disrespect.Parents should be very tough about this kind of thing.Remember mutual respect becomes more important as children mature.5.According to the passage,it seldom happens that C.A.kids turn a deaf ear to their parents'requestsB.parents'directions sound like a broken recordC.children are ready to follow their parents'directionsD.parents are unaware of what they are repeating to their kids•6.Parents will be able to deal with their children more effectively if they A.A.avoid direct ways of punishmentB.make them do things at their requestC.argue and fight with their childrenD.allow their children to behave on their own7.It can be inferred from the passage that C.A.parents should take off his headphones when trying to have a talk with their childB.it will make no difference that a kid is wearing his earplugs while talking to his parentsC.parents shouldn't give in to their kid when he shows no sign of respect D.kids'purposely talking to their parents with iPod gives them a sense of power and control8.The main idea of the passage is D.A.that respecting each other is more important than anything elseB.how kids behave to ignore and disrespect their parentsC.that children should make choices and decisions on their ownD.how parents can deal with their kids'behavior effectively.【解答】5.C.推理判断题.根据文章第一段1,2行内容Kidswill often ignore your requests for them to shut off the TV,start their chores(杂事),or do theirhomework as a way to avoid following your directions.可知孩子们很少愿意服从父母的指令.故选C.6.A.推理判断题.根据第一段第8行"Itshouldn't be punitive (惩罚性的)as much as it should be persuasive.可知我们应该避免惩罚性的命令,而应该是一种说服性的要求.故选A.7.C.推理判断题.根据文章倒数第二行Parents should be very tough about this kind of thing.可知当孩子表现出对父母的不尊敬的时候,父母不应该向让步.故选C.8.D.主旨大意题.根据文章第4,5行内容可知,文章是关于父母如何有效地对付孩子们表现出的不尊敬的行为.3.(6分)Most American students go to traditional public schools.There are about 88,000public schools all over the US.Some students attend about 3,000independent public schools called charter schools.Charter schools are selfgoverning.Private companies operate some charter schools.They are similar in some ways to traditional public schools.They receive tax just as other public schools do.Charter schools must prove to local or state governments that their students are learning.These govern﹣ments provide the schools with the agreement called a charter that permits them to operate.Charter schools are different because they don't have to obey most laws governing traditional public schools.Local,state or federal governments cannot tell them what to teach.Each school can choose its own goals and decide the ways it wants to reach them.Class size is usually smaller than in traditional public schools.Governments strongly support charter schools as a way to reorganize public schools that are failing to educate students.But some education agencies and unions oppose charter schools.One teachers'union has just made public the results of the first national study comparing the progress of students in traditional schools and charter schools.The American Federation of Teachers criticized the government's delay in releasing the results of the study,which is called the National Assessment of Educational Progress.Union education experts say the study shows that charter school students performed worse in math and reading tests than students in regular public schools.Some experts say the study is not a fair look at charter schools because students in those schools have more problems than students in traditional schools.Other education experts say the study results should make charter school officials demand more student progress.9.If a private company wants to operate a charter school,it must D.A.try new methods of teachingB.prove its management abilityC.obey all local and state lawsD.get the government's permission10.Charter schools are independent because C.A.they make greater progressB.their class size is smallerC.they enjoy more freedomD.they oppose traditional ways11.What can we learn from the text?DA.More students choose to attend charter schools.B.Charter schools are better than traditional schools.C.Students in charter schools are well educated.D.People have different opinions about charter schools.【解答】9.D.细节理解题.根据文章第二段These governments provide the schools with the agreement called a charter that permits them to operate,这些政府提供学校的协议称为特许,允许他们操作.可知特许学校的设立必须经过政府的允许;故选D.10.C.细节理解题.根据文章第三段Charter schools are different because they do not have to obey most laws governing traditional public schools,特许学校不同于普通学校,因为他们不用遵守大多数公立学校的规则.可知他们享有更多的自由.故选C.11.D.推理判断题.根据文章第四段"But some education agencies and unions oppose charter schools",但是一些教育机构和工会反对特许学校,和第五段"The American Federation of Teachers criticized the government's delay in releasing the results of the study"美国教师联合会批评政府推迟发布的研究结果,可知人们对特许学校有不用意见.故选D.。

河南省南阳市部分示范高中(五校)2015-2016学年高一上学期第一次联考化学试卷 Word版含答案.pdf

河南省南阳市部分示范高中(五校)2015-2016学年高一上学期第一次联考化学试卷 Word版含答案.pdf

2015年秋期南阳市 化 学 试 题 注意事项:1. 考试时间:90分钟,试卷满分:100分。

2. 用黑色签字笔把答案写在答题卷规定区域内,不要在题目框外答题。

3. 选择题用2B铅笔涂在答题卷上. 可能用到的相对原子质量:H:1 : 14 O:16 N: 14 Na: 23 S :32 Cl :35.5 Ba:137 第Ⅰ卷(选择题 共48分) 1、下列说法中,错误的是 ( ) A. 有了化学科学,人类能够更好利用能源和资源 B. 化学科学将为环境问题的解决提供有力的保障 C. 化学研究会造成严重的环境污染,最终人类将会毁灭在化学物质中 D. 化学家可以制造出自然界中不存在的物质 2、下列说法正确的是( ) A.铜与氯气反应时,剧烈燃烧并产生蓝色的烟 B.将金属钠投入硫酸铜溶液中可观察到有红色的铜生成 C.生活中常用的 “84” 消毒液中的有效成分是NaCl D.次氯酸不如次氯酸盐稳定,故通常用次氯酸盐作为漂白剂和消毒剂的主要成分 3、下列提出原子学说的科学家是( ) A.拉瓦锡 B.道尔顿 C.门捷列夫 D.波义耳 、从生活常识角度考虑,试推断钠元素在自然界中存在的主要形式是( )。

A.Na? ? B.NaCl C.NaOH D.Na2O 5、一家大型化工厂发生爆炸,有大量的Cl2扩散,下列应急措施不正确的是( ) A. 向顺风方向的低洼处跑 B. 用浸有纯碱液的毛巾捂住口鼻迅速逃离 C. 向逆风方向的高处跑 D. 来不及逃离的可用浸湿的棉被堵好门窗,并及时请求救援 、自来水可以用氯气消毒。

如果实验室中临时没有蒸馏水,可以用自来水配制某些急需的药品,但有些药品若用自来水配制,则明显会导致药品变质。

下列哪些药品不能用自来水配制( ) A.Na2SO4 B.NaCl C.AgNO3 ? D.AlCl3 、同温同压下,等质量的SO2和CO2相比较,下列叙述正确的是A、体积比为1:1 B、体积比为11:16C、比为16:11 D、密度比为11:16、用NA表示阿伏加德罗常数,下列说法中正确的有( ) A.标准状况下,1molH2O的体积约为22.4L B.1mol/L的CaCl2溶液中含Cl-的数目为2 NA C.常温常压下,17g NH3含氢原子数目为3NA D.标准状况下,2.24 LCl2做成的氯水中含有0.1NA个Cl2分子 、在标准状况下①6.72L CH4 ②3.01×1023个HCl分子 ③13.6g H2S ④0.2mol NH3,下列对这四种气体的关系从小到大表示不正确的是( ) A.氢原子数:②<④<③<① B.密度:①<④<③<② C.质量:④<①<③<② D.体积:④<①<②” 、“ (3)重新配制 (4)偏低 无影响 偏高 (5)BCE 20、(9)(1)Cl2 HCl NaCl (每空1分) (2) 2Na2O2+2CO2===2Na2CO3+O2 2Na+2H2O===2NaOH+H2↑ (每空2分) 21、(6)0.15 2:1(每空3分)。

河南省南阳市五校2015-2016学年高一下学期第二次联考化学试卷.pdf

河南省南阳市五校2015-2016学年高一下学期第二次联考化学试卷.pdf

2016年春期五校第二次联考 高一年级化学试题 命题学校:油田一中 命题人:刘峰 审题人:赵晓华 注意事项: 本卷分第I卷和第II卷,全卷满分为100分,考试时间为90分钟。

答题前,考生务必将自己的姓名、准考证号填写在答题卡上,并用2B铅笔将准考证号及考试科目在相应位置填涂。

选择题答案使用2B铅笔填涂,如需改动,用橡皮擦干净后,再选涂其他答案标号;非选择题答案使用0.5毫米的黑色中性签字笔或碳素笔书写,字体工整、笔迹清楚。

请按照题号在各题的答题区域内作答,超出答题区域书写的答案无效。

保持卡面清洁,不折叠,不破损。

可能用到的相对原子质量:H 1 C 12 N 14 O 16 S 32 Na 23 Mg 24 Al 27 Cl 35.5 Fe 56 Cu 64 Ag 108 第I卷(选择题,共48分) 一、选择题(本题包括16小题,每小题3分,共48分,每小题只有一个正确答案) 1.下列化学用语书写正确的是( ) A.的离子结构示意图: B.CH4分子的比例模型: C.四氯化碳的电子式: D.用电子式表示氯化氢分子的形成过程: 2.下列叙述正确的是( ) A.发生化学反应时失去电子越多的金属原子,还原能力越强 B.金属阳离子被还原后,一定得到金属的单质 C.能与酸反应的氧化物,不一定是碱性氧化物 D.电离时能生成H+的化合物是酸 3.设NA为阿伏加德罗常数的值,下列说法正确的是( ) A.常温常压下,18g重水(D2O)中所含的电子数为10 NA B.标准状况下,14g氮气含有的核外电子数为5NA C.标准状况下,22.4L氢气和氯气的混合气体中含有的分子总数为NA D.标准状况下,铝跟氢氧化钠溶液反应生成1mol氢气时,转移电子数为NA 4.下列各组离子在溶液中能大量共存的是( ) A.Ca2+,HCO3?,Cl?,K+ B.K+,SO32?,ClO?,Na+ C.Fe2+,H+,SO42?,NO3? D.Fe3+,SCN?,Na+,CO32? 5.元素A的阳离子aAm+与元素B的阴离子bBn-具有相同的电子层结构。

河南省南阳市2015—2016学年高二文科数学下学期期中考试(精编完美版)

河南省南阳市2015—2016学年高二文科数学下学期期中考试(精编完美版)

河南省南阳市2015—2016学年高二数学(文)下学期期中质量评估一、选择题1.i 为虚数单位,(1-i1+i)²= 。

A .1B .-1C .-iD .i2.在一组样本数据(x 1,y 1),(x 2,y 2),…,(x n ,y n ),(n ≥2,x 1,x 2,…,x n 不全相等)的散点图中,若所有样本点(x i ,y i )(i =1,2,…,n )都在直线y =12x +1上,则这组样本数据的样本相关系数为( )A .-1B .0C .12D .13.数列2,5,11,20,x ,47,…中的x 等于( ) A .28 B .32 C .33 D .274.对变量x 、y 有观测数据(x i ,y i )(i =1,2,…,10),得散点图1;对变量u ,v 有观测数据(u i ,v i )(i =1,2,…,10),得散点图2.由这两个散点图可以判断( )A .变量x 与y 正相关,u 与v 正相关B . 变量x 与y 正相关,u 与v 负相关C .变量x 与y 负相关,u 与v 正相关D . 变量x 与y 负相关,u 与v 负相关 5.设复数z 1,z 2在复平面内的对应点关于虚轴对称,z 1=2+i ,则z 1z 2=( ) A .5 B .-5 C .-4+i D . -4-i6.设f (x )是定义在R 上的奇函数,且当x ≥0时,f (x )单调递减,若x 1+x 2>0,则f (x 1)+f (x 2)的值( )A .恒为负值B .恒等于零C .恒为正值D .无法确定正负7.四名同学根据各自的样本数据研究变量x ,y 之间的相关关系,并求得回归直线方程,分别得到以下四个结论: ⑴y 与x 负相关且y =2.347x -6.423 ⑵y 与x 负相关且y =-3.476x +5.648 ⑶y 与x 正相关且y =5.437x +8.493⑷y与x正相关且y=-4.326x-4.578其中一定不正确的结论的序号是( )A. ⑴⑵B. ⑵⑶C.⑶⑷D. ⑴⑷8.执行如图所示的程序框图,如果输入的t∈[-2,2],则输出的S属于( )A. [-6,-2]B. [-5,-1]C. [-4,5]D. [-3,6]9.用反证法证明命题“设a,b为实数,则方程x³+ax+b=0至少有一个实根”时,要做的假设是( )A.方程x³+ax+b=0没有实根B. 方程x³+ax+b=0至多有一个实根C. 方程x³+ax+b=0至多有两个实根D. 方程x³+ax+b=0恰好有两个实根10.登山族为了了解某山高y(km)与气温x(℃)之间的关系,随机统计了4次山高-2x+a(a∈R).由此估计山高为72km处气温的度数为( )A.-10B.-8C.-6D.-411.已知z1,z2,z3∈C,下列结论正确的是( )A.若z1²+z2²+z3²=0,则z1=z2=z3=0B.若z1²+z2²+z3²>0,则z1²+z2²>-z3²C.若z1²+z2²>-z3²,则z1²+z2²+z3²>0D.若—z1=-z1(—z为复数z的共轭复数),则z1为纯虚数.12.已知“整数对”按如下规律排列成一列:(1,1),(1,2),(2,1),(1,3),(2,2),(3,1),(1,4),(2,3),(3,2),(4,1),…,则第60个“整数对”是.A.(5,7)B. (7,5)C. (2,10)D. (10,1)二、填空题13.已知函数f(x)=x1+x,x≥0,若f1(x)=f(x),f n+1(x)=f(f n(x)),n∈N*,则f2016(x)的表达式为 。

河南省南阳市五校2015-2016学年高二第二次联考数学(文)试题 含答案

河南省南阳市五校2015-2016学年高二第二次联考数学(文)试题 含答案

a c cb b a 1,1,1+++2016年春期五校第二次联考高二年级文科数学试题命题学校:桐柏一高 命题人:刘慎英 审题人:王存国一:选择题(共12个小题,每题5分,共60分)1。

已知i 是虚数单位,则复数在复平面内所对应的点位于( )A .第四象限B .第三象限C .第二象限D .第一象限2.已知x 、y 取值如下表:x 0 1 4 5 6 8y 1。

3 1.8 5.6 6.1 7。

4 9。

3=0。

95x+a ,则a=( )A .1。

30B .1。

45C .1。

65D .1.803。

设复数132i z =+,21i z =-,则122z z +=( )A .2B .3C .4D .54.设a,b ,c 大于0,则3个数的值( )A .都大于2B .至少有一个不大于2C .都小于2D .至少有一个不小于25.已知x 与y 之间的几组数据如下表:假设根据上表数据所得线性回归直线方程为a x b yˆˆˆ+=。

若某同学根据上表中前两组数据)0,1(和)2,2(求得的直线方程为a x b y '+'=,则以下结论正确的是( )A .a a b b'>'>ˆ,ˆ B .a a b b '<'>ˆ,ˆ C .a a b b '>'<ˆ,ˆ D . a a b b '<'<ˆ,ˆ 6。

在极坐标系中,圆θρcos 2=的垂直于极轴的两条切线方程分别为( )A 。

)(0R ∈=ρθ和2cos =θρ B. )(2R ∈=ρπθ和2cos =θρ C 。

)(2R ∈=ρπθ和1cos =θρ D 。

)(0R ∈=ρθ和1cos =θρ 7.执行如图所示的程序框图,欲使输出的S>11,则输入整数n 的最小值( )A 。

3B 。

4C 。

5 D.68.已知函数,那么x 1 2 3 4 5 6 y0 2 1 3 3 4=A.1 B 。

2015-2016学年河南省南阳市五校高二(下)第二次联考化学试卷(解析版)

2015-2016学年河南省南阳市五校高二(下)第二次联考化学试卷(解析版)

2015-2016学年河南省南阳市五校高二(下)第二次联考化学试卷一、选择题(共16小题,每小题3分,共48分,每题只有一个正确选项)1.我国已成功发射了“神舟”九号,其中一名航天员身穿国产的舱外航天服首次实现了太空行走.该航天服的面料是由高级混合纤维制造而成的,据此分析,该面料一定不具有的性质是()A.强度高,耐高温B.防辐射,防紫外线C.能抗骤冷、骤热D.有良好的导热性,熔点低2.下列涉及有机物的性质或应用的说法不正确的是()A.淀粉、纤维素、蛋白质都是天然高分子化合物B.用于奥运“祥云”火炬的丙烷是一种清洁燃料C.用大米酿的酒在一定条件下密封保存,时间越长越香醇D.纤维素、蔗糖、葡萄糖和脂肪在一定条件下都可发生水解反应3.DAP是电器和仪表部件中常用的一种合成高分子化合物,它的结构简式为:则合成此高分子的单体可能是()①乙烯CH2=CH2②丙烯CH3CH=CH2③丙烯醇HOCH2CH=CH2④邻苯二甲酸⑤邻苯二甲酸甲酯A.①② B.③④ C.②④ D.③⑤4.下列关于常见有机物的说法不正确的是()A.乙烯和苯都能与溴水反应B.乙酸和油脂都能与氢氧化钠溶液反应C.糖类和蛋白质都是人体重要的营养物质D.乙烯和甲烷可用酸性高锰酸钾溶液鉴别5.下列各组物质中,一定互为同系物的是()A.乙烷和己烷B.CH3COOH、C3H6O2C.和D.HCHO、CH3COOH6.下列化学用语正确的是()A.聚丙烯的结构简式:B.丙烷分子的比例模型:C.四氯化碳分子的电子式:D.2﹣乙基﹣1,3﹣丁二烯分子的键线式:7.下列五组物质,其中一定互为同分异构体的组是()①淀粉和纤维素②硝基乙烷C2H5NO2和甘氨酸NH2CH2COOH ③乙酸和乙二酸④二甲苯和苯乙烯⑤2﹣戊烯和环戊烷.A.①② B.②③④ C.①③⑤ D.②⑤8.下列系统命名法正确的是()A.2﹣甲基﹣4﹣乙基戊烷B.2,3﹣二乙基﹣1﹣戊烯C.2﹣甲基﹣3﹣丁炔D.对二甲苯9.萘分子的结构可以表示为或,两者是等同的.苯并[α]芘是强致癌物质(存在于烟囱灰、煤焦油、燃烧的烟雾和内燃机的尾气中).它的分子由5个苯环并合而成,其结构可以表示为(Ⅰ)或(Ⅱ)式,这两者也是等同的:现有结构A、B、C、D,与(Ⅰ)、(Ⅱ)式互为同分异构体的是()A.B.C.D.10.有关天然产物水解的叙述不正确的是()A.油脂水解可得丙三醇B.可用碘检验淀粉水解是否完全C.蛋白质水解的最终产物均为氨基酸D.纤维素水解和淀粉水解的最终产物不同11.设N A为阿伏伽德罗常数,下列叙述正确的是()A.28gC2H4所含共用电子对数目为4N AB.1L0.1molL﹣1乙酸溶液中H+数为0.1N AC.1mol甲烷分子所含质子数为10N AD.标准状况下,22.4L乙醇的分子数为N A12.下列哪一种试剂可以鉴别乙醇、乙醛、乙酸、甲酸四种无色溶液()A.银氨溶液B.浓溴水C.新制Cu(OH)2浊液D.FeCl3溶液13.某有机物其结构简式如图关于该有机物,下列叙述不正确的是()A.能与NaOH的醇溶液共热发生消去反应B.能使溴水褪色C.一定条件下,能发生加聚反应D.一定条件下,能发生取代反应14.具有解热镇痛及抗生素作用的药物“芬必得”主要成分的结构简式如图,它属于()①芳香族化合物②脂肪族化合物③有机羧酸④有机高分子化合物⑤芳香烃.A.③⑤ B.②③ C.①③ D.①④15.下列实验能获得成功的是()A.用溴水可鉴别苯、CCl4、苯乙烯B.加浓溴水,然后过滤可除去苯中少量苯酚C.苯、溴水、铁粉混合制成溴苯D.可用分液漏斗分离乙醇和水16.有8种物质:①乙烷;②乙烯;③乙炔;④苯;⑤甲苯;⑥溴乙烷;⑦聚丙烯;⑧环己烯.其中既不能使酸性KMnO4溶液褪色,也不能与溴水反应使溴水褪色的是()A.①②③⑤ B.④⑥⑦⑧ C.①④⑥⑦ D.②③⑤⑧二、非选择题(共5个小题,52分)17.有下列几组物质,请将序号填入下列空格内:A、CH2=CH﹣COOH和油酸(C17H33COOH)B、C60和石墨C、D、35Cl和37ClE、乙醇和乙二醇①互为同位素的是;②互为同系物的是;③互为同素异形体的是;④互为同分异构体的是;⑤既不是同系物,又不是同分异体,也不是同素异形体,但可看成是同一类物质的是.18.请写出下列反应的化学方程式:①由丙烯制取聚丙烯:②丙氨酸缩聚形成多肽:③淀粉水解:④丙醛与新制的氢氧化铜悬浊液反应:.19.用一种试剂将下列各组物质鉴别开.(1)和:(2),和C6H12(已烯):(3),CCl4和乙醇:.20.溴乙烷在不同溶剂中与NaOH发生不同类型的反应,生成不同的反应产物.某同学依据溴乙烷的性质,用右图实验装置(铁架台、酒精灯略)验证取代反应和消去反应的产物,请你一起参与探究.实验操作Ⅰ:在试管中加入5mL 1mol/L NaOH溶液和5mL 溴乙烷,振荡.实验操作II:将试管如图固定后,水浴加热.(1)用水浴加热而不直接用酒精灯加热的原因是.(2)观察到现象时,表明溴乙烷与NaOH溶液已完全反应.(3)鉴定生成物中乙醇的结构,可用的波谱是.(4)为证明溴乙烷在NaOH乙醇溶液中发生的是消去反应,在你设计的实验方案中,需要检验的是,检验的方法是(需说明:所用的试剂、简单的实验操作及预测产生的实验现象).21.某高校曾以下列路线合成药物心舒宁(又名冠心宁),它是一种有机酸盐.(1)心舒宁的分子式为.(2)中间体(I)的结构简式是.(3)反应①~⑤中属于加成反应的是(填反应代号).(4)如果将⑤.⑥两步颠倒,则最后得到的是(写结构简式).22.有机物W~H 有如下的转化关系.已知W、B为芳香族化合物,X为卤素原子,W、A、B均能与NaHCO3溶液反应,A分子中有2个甲基,H分子中含有醛基且苯环上的取代基处于对位已知:请回答下列有关问题:(1)反应①、②分别属于反应、反应(填有机反应类型),A、B中均含有的含氧官能团的名称是.(2)F的化学式,B的结构简式.(3)反应②的化学方程式是.(4)若D L有机玻璃【(C5H8O2)n】,则反应④的化学方程式是.(5)H有多种同分异构体,且满足下列3个条件(i)遇FeCl3显紫色(ii)苯环上一取代物有两种(ⅲ)除苯环外无其它环状结构试写出三种符合条件的同分异构体的结构简式.23.某有机化合物A含碳77.8%,氢为7.40%,其余为氧,A的相对分子质量为甲烷的6.75倍.求:(1)该有机物的分子式.(2)红外光谱测定,A分子结构中含有苯环和羟基,能与烧碱反应,且在常温下A可与浓溴水反应,1molA最多可与2molBr2作用,据此确定该有机物的结构简式.2015-2016学年河南省南阳市五校高二(下)第二次联考化学试卷参考答案与试题解析一、选择题(共16小题,每小题3分,共48分,每题只有一个正确选项)1.我国已成功发射了“神舟”九号,其中一名航天员身穿国产的舱外航天服首次实现了太空行走.该航天服的面料是由高级混合纤维制造而成的,据此分析,该面料一定不具有的性质是()A.强度高,耐高温B.防辐射,防紫外线C.能抗骤冷、骤热D.有良好的导热性,熔点低【考点】常用合成高分子材料的化学成分及其性能.【分析】舱外宇航服外层防护材料是其成型的关键所在,它应具备舱内服所不具备的防辐射、防紫外线、抗骤冷、骤热等功能.因为出舱的航天员可能会遇到向着太阳的一面是200多摄氏度高温、背着太阳的一面是零下摄氏度的低温.这种骤冷、骤热的变化必须要使用特殊的材料及防护层.【解答】解:舱外航天服是保证航天员安全、有效完成出舱活动的重要手段.其基本功能是保护航天员不受宇宙空间恶劣环境的影响,并为航天员个体提供赖以生存的微环境.舱外宇航服外层防护材料是其成型的关键所在,它应具备舱内服所不具备的防辐射、防紫外线、抗骤冷、骤热等功能.故选D.【点评】本题考查常用合成高分子材料的化学成分及其性能,难度不大,关键是根据题目所给信息解题.2.下列涉及有机物的性质或应用的说法不正确的是()A.淀粉、纤维素、蛋白质都是天然高分子化合物B.用于奥运“祥云”火炬的丙烷是一种清洁燃料C.用大米酿的酒在一定条件下密封保存,时间越长越香醇D.纤维素、蔗糖、葡萄糖和脂肪在一定条件下都可发生水解反应【考点】有机物的结构和性质.【分析】A.根据高分子化合物的定义判断;B.丙烷充分燃烧只生成二氧化碳和水;C.乙醇被氧化生成乙酸,可与乙酸反应生成乙酸乙酯;D.葡萄糖为单糖,不能水解.【解答】解:A.淀粉、纤维素、蛋白质相对分子质量较大,都为高聚物,为高分子化合物,故A正确;B.丙烷充分燃烧只生成二氧化碳和水,为清洁燃料,故B正确;C.乙醇被氧化生成乙酸,可与乙酸反应生成乙酸乙酯,则用大米酿的酒在一定条件下密封保存,时间越长越香醇,故C正确;D.葡萄糖为单糖,不能水解,故D错误.故选D.【点评】本题考查有机物的结构和性质,为高频考点,侧重于学生的分析能力的考查,注意把握有机物的结构和官能团的性质,为解答该类题目的关键,难度不大.3.DAP是电器和仪表部件中常用的一种合成高分子化合物,它的结构简式为:则合成此高分子的单体可能是()①乙烯CH2=CH2②丙烯CH3CH=CH2③丙烯醇HOCH2CH=CH2④邻苯二甲酸⑤邻苯二甲酸甲酯A.①② B.③④ C.②④ D.③⑤【考点】有机物的结构和性质.【分析】有机物含有酯基,应由酸和醇发生酯化反应,对应的单质分别含有羟基、羧基,且为二元酸,链节中主碳链为2个碳原子,对应的单体含有碳碳双键,以此解答该题.【解答】解:按如图所示断键后,氧原子接H原子,碳原子接﹣OH,再将两端的半键连接成双键,所以可得单体为和CH2=CH﹣CH2﹣OH,故选B.【点评】本题考查高分子化合物的结构和性质,为高频考点,侧重于学生的分析能力的考查,注意根据链节判断高聚物是加聚、还是缩聚而成是关键,注意理解结合反应的机理,难度不大.4.下列关于常见有机物的说法不正确的是()A.乙烯和苯都能与溴水反应B.乙酸和油脂都能与氢氧化钠溶液反应C.糖类和蛋白质都是人体重要的营养物质D.乙烯和甲烷可用酸性高锰酸钾溶液鉴别【考点】乙烯的化学性质;甲烷的化学性质;苯的同系物的化学性质;乙酸的化学性质;油脂的性质、组成与结构;营养均衡与人体健康的关系.【分析】在催化剂条件下,苯可以和液溴发生取代反应;乙酸具有酸性,与碱发生中和反应,油脂在碱性条件下发生水解,也称为皂化;糖类,油脂和蛋白质是人体重要营养的物质;乙烯含有双键,具有还原性,与高锰酸钾发生氧化还原反应.【解答】解:A、苯不能与溴水发生反应,只能与液溴反应,故A错误;B、乙酸与NaOH发生酸碱中和,油脂在碱性条件能水解,故B正确;C、糖类,油脂和蛋白质是重要营养的物质,故C正确;D、乙烯可以使高锰酸钾褪色,而甲烷不可以,故D正确;故选:A.【点评】本题考查常见有机化合物性质,题目难度较小,注意基础知识的积累.5.下列各组物质中,一定互为同系物的是()A.乙烷和己烷B.CH3COOH、C3H6O2C.和D.HCHO、CH3COOH【考点】芳香烃、烃基和同系物.【分析】结构相似、分子组成相差若干个“CH2”原子团的有机化合物互相称为同系物.【解答】解:A.乙烷和己烷结构相似、分子组成相差4个“CH2”原子团,故互为同系物,故A正确;B.CH3COOH是乙酸,C3H6O2可能是丙酸,也有可能是甲酸乙酯或乙酸甲酯,故两者不一定互为同系物,故B错误;C.是苯酚,是苯甲醇,两者结构不同,故不互为同系物,故C错误;D.HCHO是甲醛,CH3COOH是乙酸,两者结构不同,故不互为同系物,故D错误,故选A.【点评】本题考查同系物的概念,难度不大.对于元素、核素、同位素、同素异形体、同分异构体、同系物、同种物质等概念的区别是考试的热点问题.6.下列化学用语正确的是()A.聚丙烯的结构简式:B.丙烷分子的比例模型:C.四氯化碳分子的电子式:D.2﹣乙基﹣1,3﹣丁二烯分子的键线式:【考点】电子式;常见元素的名称、符号、离子符号;结构简式.【分析】A、丙烯不饱和的C=C双键其中一个键断开,自身加成反应生成聚丙烯,聚丙烯结构单元主链含有2个C原子,;B、图中模型为丙烷的球棍模型,比例模型表示原子的比例大小、原子连接顺序、空间结构,不能表示成键情况;C、氯原子未成键的孤对电子对未画出;D、键线式用短线表示化学键,C原子、H原子不标出,交点、端点是碳原子,利用H原子饱和碳的四价结构,杂原子及杂原子上氢原子需标出.【解答】解:A、聚丙烯的结构简式为,故A错误;B、图中模型为丙烷的球棍模型,故B错误,C、氯原子未成键的孤对电子对未画出,分子中碳原子与氯原子之间形成1对共用电子对,电子式为,故C错误;D、键线式用短线表示化学键,交点、端点是碳原子,C原子、H原子不标出,故2﹣乙基﹣1,3﹣丁二烯分子的键线式为,故D正确;故选D.【点评】考查常用化学用语的书写,难度中等,注意电子式书写中未成键的孤对电子容易忽略.7.下列五组物质,其中一定互为同分异构体的组是()①淀粉和纤维素②硝基乙烷C2H5NO2和甘氨酸NH2CH2COOH ③乙酸和乙二酸④二甲苯和苯乙烯⑤2﹣戊烯和环戊烷.A.①② B.②③④ C.①③⑤ D.②⑤【考点】同分异构现象和同分异构体.【分析】同分异构体是指分子式相同,但结构不同的化合物,以此来解答.【解答】解:①淀粉和纤维丝的分子式为(C6H10O5)n,n不同,分子式不同,所以不是同分异构体,故错误;②硝基乙烷C2H5NO2和甘氨酸NH2CH2COOH,分子式相同,含有官能团不同,二者互为同分异构体,故正确;③乙酸和乙二酸分子式不同,二者不是同分异构体,故错误;④二甲苯和苯乙烯的分子式不同,二者不是同分异构体,故错误;⑤2﹣戊烯和环戊烷分子式相同,前者含有C=C双键,二者结构不同,互为同分异构体,故正确;故选D.【点评】本题考查了同分异构体的判断,难度不大,侧重对基础知识的巩固,根据物质名称确定结构是关键.8.下列系统命名法正确的是()A.2﹣甲基﹣4﹣乙基戊烷B.2,3﹣二乙基﹣1﹣戊烯C.2﹣甲基﹣3﹣丁炔D.对二甲苯【考点】有机化合物命名.【分析】判断有机物的命名是否正确或对有机物进行命名,其核心是准确理解命名规范:(1)烷烃命名原则:①长:选最长碳链为主链;②多:遇等长碳链时,支链最多为主链;③近:离支链最近一端编号;④小:支链编号之和最小.看下面结构简式,从右端或左端看,均符合“近﹣﹣﹣﹣﹣离支链最近一端编号”的原则;⑤简:两取代基距离主链两端等距离时,从简单取代基开始编号.如取代基不同,就把简单的写在前面,复杂的写在后面;(2)有机物的名称书写要规范;(3)对于结构中含有苯环的,命名时可以依次编号命名,也可以根据其相对位置,用“邻”、“间”、“对”进行命名;(4)含有官能团的有机物命名时,要选含官能团的最长碳链作为主链,官能团的位次最小.【解答】解:A.2﹣甲基﹣4﹣乙基戊烷,戊烷的命名中出现了4﹣乙基,说明选取的主链不是最长的,最长主链为己烷,在2、4号C各含有1个甲基,该有机物正确命名为:2,4﹣二甲基己烷,故A错误;B.2,3﹣二乙基﹣1﹣戊烯,主链为戊烯,在2、3号C各含有1个乙基,该命名满足烯烃命名原则,故B正确;C.2﹣甲基﹣3﹣丁炔,丁炔命名中不能出现3﹣丁炔,说明编号方向错误,正确命名应该为:2﹣甲基﹣1﹣丁炔,故C错误;D.对二甲苯,苯环上对位有2个甲基,根据习惯命名法,可以命名为对二甲苯,但不是系统命名法,故D错误;故选B.【点评】本题考查了有机物的命名,题目难度不大,该题注重了基础性试题的考查,侧重对学生基础知识的检验和训练,该题的关键是明确有机物的命名原则,然后结合有机物的结构简式灵活运用即可,有利于培养学生的规范答题能力.9.萘分子的结构可以表示为或,两者是等同的.苯并[α]芘是强致癌物质(存在于烟囱灰、煤焦油、燃烧的烟雾和内燃机的尾气中).它的分子由5个苯环并合而成,其结构可以表示为(Ⅰ)或(Ⅱ)式,这两者也是等同的:现有结构A、B、C、D,与(Ⅰ)、(Ⅱ)式互为同分异构体的是()A.B.C.D.【考点】有机化合物的异构现象.【分析】对于多个苯环并在一起的稠环芳香烃,要确定两者是否为同分异构体,可以通过平移或翻转来判断是否互为同分异构体.【解答】解:以(II)式为基准,将(II)式图形在纸面上反时针旋转1800即得A式.(II)式在纸面上反时针旋转1350即得D式.从分子组成来看,(I)式是C20H12,B式也是C20H12,而C式是C19H12,所以B是(I)、(II)式的同分异构体,而C式不是,故选:B.【点评】本题考查有机物的结构与性质,难度不大,判断有机物结构是否等同的方法是:①用系统命名法命名后名称相同者;②将分子整体旋转或翻转后能完全“重叠”者.10.有关天然产物水解的叙述不正确的是()A.油脂水解可得丙三醇B.可用碘检验淀粉水解是否完全C.蛋白质水解的最终产物均为氨基酸D.纤维素水解和淀粉水解的最终产物不同【考点】淀粉的性质和用途;油脂的性质、组成与结构;纤维素的性质和用途;氨基酸、蛋白质的结构和性质特点.【分析】A.油脂是高级脂肪酸甘油酯;B.碘单质遇淀粉变蓝色;C.蛋白质水解生成氨基酸;D.淀粉和纤维素水解的产物都是葡萄糖.【解答】解:A.油脂在酸性条件下水解生成高级脂肪酸和丙三醇,故A正确;B.碘单质遇淀粉变蓝色,若变蓝则水解不完全,故B正确;C.蛋白质水解的最终产物均为氨基酸,故C正确;D.因淀粉和纤维素水解的产物都是葡萄糖,故D错误.故选D.【点评】本题主要考查糖类油脂蛋白质的性质,难度不大,注意知识的积累.11.设N A为阿伏伽德罗常数,下列叙述正确的是()A.28gC2H4所含共用电子对数目为4N AB.1L0.1molL﹣1乙酸溶液中H+数为0.1N AC.1mol甲烷分子所含质子数为10N AD.标准状况下,22.4L乙醇的分子数为N A【考点】阿伏加德罗常数.【分析】A、一个乙烯分子含有6个共用电子对,28g乙烯的物质的量为1mol,乙烯分子的个数为N A个;B、乙酸为弱酸,不能完全电离;C、1mol甲烷含有N A个分子,每个甲烷含有10个质子;D、标准状况下,乙醇不是气体.【解答】解:A、一个乙烯分子含有6个共用电子对,28g乙烯的物质的量为1mol,乙烯分子的个数为N A个,因此含有共用电子对的数目为6N A,故A错误;B、1L0.1molL﹣1乙酸溶液中溶质的物质的量为0.1mol,由于醋酸时弱酸,不能完全电离,因此H+的物质的量小于0.1mol,个数小于0.1N A个,故B错误;C、1mol甲烷含有N A个分子,每个甲烷含有10个质子,因此1mol甲烷分子所含质子数为10N A,故C正确;D、标准状况下,乙醇不是气体,在给定条件下无法计算乙醇的物质的量、分子数,故D错误;故选C.【点评】本题考查了阿伏伽德罗常数的有关计算,难度不大,注意气体摩尔体积的使用范围和条件及弱电解质的电离.12.下列哪一种试剂可以鉴别乙醇、乙醛、乙酸、甲酸四种无色溶液()A.银氨溶液B.浓溴水C.新制Cu(OH)2浊液D.FeCl3溶液【考点】有机物的鉴别.【分析】乙醇、乙醛、乙酸、甲酸分别与新制Cu(OH)2浊液反应的现象为:无现象、生成砖红色沉淀、生成蓝色溶液、加热先有蓝色溶液后生成砖红色沉淀,以此来解答.【解答】解:A.乙醛、甲酸与银氨溶液中均生成银镜,现象相同,不能区分,故A不选;B.乙醇、乙酸均不与浓溴水反应,现象相同,不能区分,故B不选;C.乙醇、乙醛、乙酸、甲酸分别与新制Cu(OH)2浊液反应的现象为:无现象、生成砖红色沉淀、生成蓝色溶液、加热先有蓝色溶液后生成砖红色沉淀,现象不同,可以鉴别,故C正确;D.四种溶液均不与氯化铁溶液反应,现象相同,不能鉴别,故D不选;故选C.【点评】本题考查有机物的鉴别,为高频考点,把握有机物性质的差异及反应中的不同现象为解答的关键,注意利用不同现象鉴别物质,注意甲酸中含﹣CHO、﹣COOH,题目难度不大.13.某有机物其结构简式如图关于该有机物,下列叙述不正确的是()A.能与NaOH的醇溶液共热发生消去反应B.能使溴水褪色C.一定条件下,能发生加聚反应D.一定条件下,能发生取代反应【考点】有机物的结构和性质;有机物分子中的官能团及其结构.【分析】该有机物含C=C、﹣Cl及苯环,结合烯烃及卤代烃的性质来解答.【解答】解:A.与﹣Cl相连C的邻位C上没有H,不能发生消去反应,故A错误;B.含C=C,能使溴水褪色,故B正确;C.含C=C,一定条件下,能发生加聚反应,故C正确;D.含﹣Cl,则一定条件下,能发生取代反应,故D正确;故选A.【点评】本题考查有机物的结构与性质,注意把握烯烃、卤代烃的性质即可解答,注重基础知识的考查,题目难度不大.14.具有解热镇痛及抗生素作用的药物“芬必得”主要成分的结构简式如图,它属于()①芳香族化合物②脂肪族化合物③有机羧酸④有机高分子化合物⑤芳香烃.A.③⑤ B.②③ C.①③ D.①④【考点】芳香烃、烃基和同系物.【分析】根据该物质的成键元素、成键类型、相对分子质量的大小可以判断该物质所属类型.【解答】解:①芳香族是指碳氢化合物分子中至少含有一个带离域键的苯环的一类有化合物,故①正确;②脂肪族化合物是链状烃类(开链烃类)及除芳香族化合物以外的环状烃类及其衍生物的总称,故②错误;③分子中含有羧基,属于有机羧酸,故③正确;④该分子相对分子质量较小,不属于高分子化合物,故④错误;⑤分子中含有氧元素,不属于烃,故⑤错误.故选C.【点评】本题考查学生有机物和无机物的区别,注意根据官能团确定物质的类别,较简单.15.下列实验能获得成功的是()A.用溴水可鉴别苯、CCl4、苯乙烯B.加浓溴水,然后过滤可除去苯中少量苯酚C.苯、溴水、铁粉混合制成溴苯D.可用分液漏斗分离乙醇和水【考点】有机物的鉴别;物质的分离、提纯和除杂.【分析】A.溴水与苯和CCl4分层,苯乙烯使溴水褪色;B.三溴苯酚溶于苯中;C.苯与溴水不反应;D.乙醇与水互溶.【解答】解:A.溴水与苯和CCl4分层,溴水与苯混合,苯在上层,溴水与CCl4混合,CCl4在下层,苯乙烯使溴水褪色,现象各不相同,所以用溴水可鉴别苯、CCl4、苯乙烯,故A正确;B.三溴苯酚溶于苯中,加浓溴水与苯酚反应生成三溴苯酚,三溴苯酚与苯互溶,苯中引入新的杂质,故B错误;C.苯与溴水不反应,苯、液溴、铁粉混合制成溴苯,故C错误;D.乙醇与水互溶,在分液漏斗中不分层,所以不能用分液漏斗分离乙醇和水,故D错误.故选A.【点评】本题综合考查化学实验方案的评价,侧重于物质的检验、制备和分离的考查,题目难度不大,注意把握相关实验的注意事项以及相关物质的性质.16.有8种物质:①乙烷;②乙烯;③乙炔;④苯;⑤甲苯;⑥溴乙烷;⑦聚丙烯;⑧环己烯.其中既不能使酸性KMnO4溶液褪色,也不能与溴水反应使溴水褪色的是()A.①②③⑤ B.④⑥⑦⑧ C.①④⑥⑦ D.②③⑤⑧【考点】乙烯的化学性质;苯的性质;苯的同系物;溴乙烷的化学性质.【分析】(1)能使溴水褪色或变色的物质为:①烯烃、炔烃、二烯烃等不饱和烃类反应,使溴水褪色;②与苯酚反应生成白色沉淀;③与醛类等有醛基的物质反应,使溴水褪色;④与苯、甲苯、四氯化碳等有机溶液混合振荡,因萃取作用使溴水褪色,有机溶剂溶解溴呈橙色(或棕红色);⑤与碱性溶液(如NaOH溶液、Na2CO3溶液等)反应,使溴水褪色;⑥与较强的无机还原剂(如H2S、SO2、KI和FeSO4等)发生反应,使溴水褪色;(2)能使高锰酸钾溶液褪色的物质为:①与烯烃、炔烃、二烯烃等不饱和烃类反应,使高锰酸钾溶液褪色;与苯的同系物(甲苯、乙苯、二甲苯等)反应,使酸性高锰酸钾溶液褪色;②与苯酚发生氧化还原反应,使高锰酸钾溶液褪色;③与醛类等有醛基的有机物发生氧化还原反应,使高锰酸钾溶液褪色;④与具有还原性的无机还原剂反应,使高锰酸钾溶液褪色;(3)“既使高锰酸钾溶液褪色,又使溴水褪色的物质”包括:既能使酸性高锰酸钾溶液褪色,又能使溴水褪色的物质包括分子结构中有C=C双键、C≡C三键、醛基(﹣CHO)的有机物;苯酚和无机还原剂.苯的同系物只能使其中的酸性高锰酸钾溶液褪色;有机萃取剂只能使其中的溴水褪色.【解答】解:①乙烷属于烷烃,既不能使酸性KMnO4溶液褪色,也不能与溴水反应使溴水褪色,故①符合;②乙烯含有C=C双键,既能使酸性KMnO4溶液褪色,也能与溴水反应使溴水褪色,故②不符合;。

河南省南阳市2015-2016学年高二数学下学期期中质量评估试题 理(扫描版)

河南省南阳市2015-2016学年高二数学下学期期中质量评估试题 理(扫描版)

2016春期中考试高二数学理科参考答案一.选择题: DBADD ADCBD DC 二.填空题:13.2314. f (k +1)=f (k )+(2k +1)2+(2k +2)215. a<1-或a>0 16.三。

解答题: 17.解:(1)2(1)(1)1(1)(1)i i z i i i i i +==+=-+-+. ………………………4分所以1z i =-- ……………………………5分(2)把1z i =-+代入21z az b i ++=-,即()2111i a i b i -++-++=-,得()21a b ai i -+++=-. ……………………………8分所以211a b a -++=⎧⎨=-⎩,解得12a b =-⎧⎨=-⎩.所以实数,a b 的值分别为1-,2-. ……………………………10分18. 解:(1)∵f(x )=ax 3+bx 2的图象经过点M (1,4),∴a+b=4①式 f'(x )=3ax 2+2bx ,则f'(1)=3a+2b…(3分) 由条件②式由①②式解得a=1,b=3 ……………………………6分 (2)f (x )=x 3+3x 2,f'(x )=3x 2+6x ,令f'(x )=3x 2+6x≥0得x≥0或x≤﹣2,∵函数f (x )在区间[m ,m+1]上单调递增∴[m,m+1]⊆(﹣∝,﹣2]∪[0,+∝)∴m≥0或m+1≤﹣2∴m≥0或m≤﹣3 ……………………………12分19解: (1)∴ (4)分(2)由(1)得类似的, ………6分又;……………………………9分∴…12分20.解:若存在常数使等式成立,则将代入上式,有得,即有对于一切成立………4分证明如下:(1)当时,左边=,右边=,所以等式成立…………………………5分(2)假设时等式成立,即当时,===== ……………………11分也就是说,当时,等式成立,综上所述,可知等式对任何都成立。

2016年4九年级月考试卷

2016年4九年级月考试卷

广东省乐昌市中英文学校2015—2016学年度3月月考九年级物理科试卷命题教师:陈建平审核人:说明:1、本试卷共4页,考试时间为80分钟,满分100分。

2、本试题设有答题卡,共2页,请考生将答案写在答题卡上,注意答案写在问卷上将不计分。

3、必须使用黑色字迹的钢笔或签字笔作答。

一、选择题(每小题3分,共21分)1.以下物体的质量最接近200g的是()A.一枚大头针B.一杯水的质量 C.一个西瓜 D.一只羊2.我们生活在充满声音的海洋里,歌声、风声、汽车喇叭声…….这些不同的声音具有不同的特性,在繁华闹市区设立的噪声检测器是测定声音的()A.响度 B.音调 C.音色 D.频率3.如图1所示四个实例中,属于增大摩擦的是()4.图2A.该物质的沸点是B.该物质在BCC.该物质在ABD.5min5.一位乘客坐在匀速飞行的飞机上。

下列各对力中,属于平衡力的是()A.座椅受到的重力和乘客对座椅的压力B.座椅受到的重力和座椅对乘客的支持力C.乘客受到的重力和乘客对座椅的压力D.乘客受到的重力和座椅对乘客的支持力6.有关惯性的说法中正确的说法是()A..高速行驶的火车不容易停下来,说明速度越大惯性越大B.跳高的运动员起跳时为了增大惯性C.羽毛球容易被扣杀是因为它的惯性小D.宇宙飞船在太空中运行时没有惯性7.下列做法中符合安全用电规范的是()A.使用测电笔时,手要接触金属笔尾B.家庭电路中的保险丝用铜丝代替熔丝C.控制电灯的开关接在零线上D.家用电器金属外壳不要接地二、填空题(每空1分,共21分)8.暑假妍妍到劳动公园游玩,她坐在湖边的树荫下,看到湖水映衬着树的倒影、鱼儿在水中嬉戏.湖中树的倒影是光的 _形成的;在岸上能看到水中的鱼是光的现象;树荫是光的形成的.A.轴承之间装滚珠12图7 9.在比赛中,姚明跃起投篮,篮球被投出表明力可以改变物体的 __ ____ 。

当姚明在落地的过程中,他的动能 _____、重力势能 _____(均选填“增大”、“不变”或“减小”)。

2015-2016学年高二上学期第四次月考数学试卷(文)

2015-2016学年高二上学期第四次月考数学试卷(文)

2015—2016 学年第一学期高二年级数学第四次月考试卷(文)第Ⅰ卷一.选择题 . (每题 5 分,合计60 分)1.“x 30”是“ sin x1”的 ()2A.既不充足也不用要条件 B .必需而不充足条件C.充足而不用要条件D.充要条件2.抛物线x24y 的准线方程是()A.x 1B.x 1 C. y 1 D. y13.在ABC中,a : b : c 3 : 5 : 7 ,则这个三角形的最大角为( )A.120B.90C. 30 D .604.在数列a n中, a1 1, a24, 若a n为等差数列,则数列a n的第10项为( ) A. 22B. 25C. 31D.285.函数y x2 sin x 的导数为()A.C.y x2 sin x 2 x cosx B.y2x sin x x2 cosx y x2 sin x 2 x cosx D.y2x sin x x2 cosx6.不等式2x2x10 的解集是()A.(1,1)B. (1,) C.(,1) (2, )D.( ,1) (1, ) 227.方程x2ky2 2 表示焦点在y 轴上的椭圆,则 k 的取值范围是()A. (0, +∞ )B. (0,2) C .(0,1) D. (1,+∞ )8.设函数f ( x)在定义域内可导 , y f ( x) 的图象如左图所示, 则导函数y f ( x) 可能为( )yy y y yO x O xO x O x O xA B C D9 .已知命题p : "x2a0",命题 q : "x2 2 ax2a0",若命题1, 2 ,x R, x“ p q ”是真命题,则实数 a 的取值范围是( )A.(,2]{1}B.( ,2][1,2]C.[1,)D.[2,1]10.曲线y 4 x x2上两点A(4,0),B(2, 4) ,若曲线上一点P处的切线恰巧平行于弦AB ,则点 P 的坐标为()A.(1,3)B. (3, 3)C. (6,-12 )D.(2, 4)11.设F1和F2为双曲线x2y21 ( a 0, b0 )的两个焦点,若 F1, F2,P(0,2 b)是正22a b三角形的三个极点 , 则双曲线的离心率为 ( )A.3B.2C.5D.3 2212.设f (x)是定义在R上的奇函数,且f (2)0 ,当 x0时,有 xf ( x) f ( x)0 恒建立,x2则不等式 x2 f (x) 0 的解集是()A .(2,0)(2,) B.( 2,0)(0,2) C .(,2)( 2,) D. (,2)(0,2)第Ⅱ卷二.填空题 . (每题 5 分,合计 20分)13.已知双曲线x2y21(a>0,b>0)的离心率e=2,则双曲线的渐近线方程为a2b2.14.函数f(x)= x(x -2____.1)的极大值点为_____15 .抛物线y24x 上一点A到点B(4,2)与焦点的距离之和最小,则点A的坐标为.16.已知椭圆 x2y 21, (a b0) , A 为左极点, B 为短轴端点, F 为右焦点,且a 2b 2AB BF ,则这个椭圆的离心率等于.三.解答题 . (合计 70 分).分)在ABC中,内角 A, B, C 的对边分别为a, b, c ,且a cosBb sin A.17 (10(1)求角B的大小;(2)若b3, sin A 2 sin C, 求a,c的值.18.( 12 分)已知等差数列a n的前n项和为S n,公差d0, 且S3 6 , a1, a2 , a4成等比数列.(1)求数列a n的通项公式;(2)设b n2a n,求数列b n的前 n 项和 T n.19.( 12 分)已知f ( x) ln x x, g( x) 1 x3 1 x2ax b, ,直线 l 与函数 f (x), g (x) 的32图像都相切于点(1,0)(1) 求直线l的方程;(2)求函数g( x) 的分析式.20.( 12 分)设x1与 x 3 是函数f ( x) a ln x bx2x 的两个极值点.(1) 试确立常数 a 和b的值;(2) 试判断x1, x 3 是函数 f ( x) 的极大值点仍是极小值点,并说明原因.2112分)已知动点P 与平面上两定点A( 2,0), B( 2,0)连线的斜率的积为定值..(12 (1) 试求动点P 的轨迹 C 的方程;(2) 设直线l : y kx 1与曲线 C 交于 M , N 两点,当42l 的方程.MN时,求直线322.( 12 分)已知函数 f ( x) ax3bx2 c (此中a,b, c均为常数, x R ).当x1时,函数 f ( x) 的极植为 3 c .(1)试确立 a, b 的值;(2)求 f ( x) 的单一区间;(3) 若关于随意x 0 ,不等式f (x)2c2恒建立,求 c 的取值范围.高二数学文科月考试卷参照答案1---5CDADB1----10 ACDAB11---12BB13. y3x115.(1,2)51 14.16.3217.解:( 1)由 bsi nA=acosB 及正弦定理得: sinBsinA=sinAcosB ,∵A 为三角形的内角,∴ sinA ≠0,∴sinB=cosB ,即 tanB=1 ,又 B 为三角形的内角,∴B=;4(2)由 sinC= 2 sinA及正弦定理=,得:c= 2 a①,∵b=3, cosB=2,∴由余弦定理b2=a2+c2﹣2accosB得:9=a2+c2﹣2accosB②,2联立①②解得:c=3 2 ,a=3.18解:( 1)∵ a1, a2, a4成等比数列.2∴a2 =a1a4,即( a1+d)2=a1(a1+3d),化简得 d=a1,d=0(舍去).∴S3=3 (a1d) =6,得a1=d=1.∴a n=a1+( n﹣ 1) d=1+( n﹣ 1) =n ,即 a n=n.(2)∵ b n=2a n=2n∴ b1=2,.∴{b n} 是以 2 为首项, 2为公比的等比数列,∴T n= 2(1 2 n )2(2n1) 2n 121 219.( 1)y 2x 2(2)a1,b 1;函数 g ( x) 1 x3 1 x2x 1 . 632620.(1)a3,b148(2) x1是极小值点, x 3 是极大值点21.解:( 1)设点P(x, y),则依题意有y y 1 ,x2x22整理得 x2y21,因为x 2 ,2因此所求动点P 的轨迹 C 的方程为:x2y21( x2).2(2)由x2y21,消去 y ,得(12k 2 ) x24kx0 ,2y kx1解得 x10, x214k2(x1, x2分别为M,N的横坐标)2k由 MN 1 k 2 x1x2 1 k214k 4 2 ,2k 23解得 k 1 ,因此直线 l 的方程 x y10或 x y10.22、解 :(1) 由f x ax 3bx2c, 得f '( x)22bx ,( )3ax当 x1时, f ( x) 的极值为3 c ,∴f '(1)0,得3a2b0,∴a6 f (1)3a b c3b,c c9∴ f (x) 6x39x 2 c .(2) ∵f ( x)6x 39x 2c,∴f '( x)18x218x 18x( x1),令 f'(x)0, 得x=0 或x=1.当 x0或 x 1 时, f '( x)0 , f ( x) 单一递加;当 0x1 时, f '( x) 0 , f ( x) 单一递减;∴函数 f ( x) 的单一递加区间是,0和 1,, 单一递减区间是[0,1] .(3) ∵f ( x)2c2对随意 x0恒建立,∴6x39x2c2c 2对随意 x0恒建立,∵当 x=1时, f ( x)min3 c ,∴3c2c2, 得2c2c30 ,∴ c31或 c.2[3,∴ c 的取值范围是(,1]) .2。

新课标2015-2016学年高一上学期第四次月考数学试卷(含答案)

新课标2015-2016学年高一上学期第四次月考数学试卷(含答案)

【新课标】2015-2016学年上学期第四次月考高一数学试题一、选择题(每题有且只有一个选项是正确的,12×5分=60分) 1.若异面直线a,b 分别在平面αβ、内,且l =βαI ,则直线l ( )A 与直线a,b 都相交B 至少与a,b 中的一条相交C 至多与a,b 中的一条相交D 与a,b 中的一条相交,与另一条平行 2. 一个多面体为n 面体,共有8条棱,5个顶点,则n 等于( ) A 4 B 5 C 6 D 73. 棱锥被平行于底面的平面所截,若截面面积与底面面积之比为1:2,则此棱锥的高被截面分成的两段之比为 ( )A 1:2B 1:4C 1:(21)+D 1:(21)-4. 设长方体1111D C B A ABCD -棱长分别为a,b,c,若长方体所有棱的长度之和为24,一条体对角线1AC 长度为5,体积为2,则111abc++等于( )A114 B 411 C 112 D 2115. 一个四面体的所有棱长都为2,四个顶点在同一球面上,则此球的表面积为( )A 3πB 4πC 33πD 6π6.在单调递减的等差数列{}n a 中,05795=+a a ,当前n 项的和n S 取得最大值时,=n ( )A 5B 6C 7D 6或77.已知实数y x ,满足约束条件⎪⎩⎪⎨⎧-≤≤+-≥+-x y y x y x 8010502,则x y z 34-=的最大值与最小值分别为( )A 11、3-B 3、11-C 8、3-D 3、8-8.在平面直角坐标系中,过点()1,1P 做直线l 交x 轴正半轴于A 点,交y 轴正半轴于B 点, 则PB PA +的最小值为 ( )A 2B 22C 4D 89. 已知正方体1111,E,F ABCD A B C D -中分别111111ADD A A B C D 是正方形和中心,则EF 和CD 所成的角是 ( )10. 空间有三条直线两两互相垂直,若第四条直线l 和这三条直线所成的角分别为αβγ、和,则cos 2cos 2cos 2αβγ++的值是 ( )A 2 B32C 1D 1- 11.在长方体1111D C B A ABCD -的棱AB 、AD 、1AA 上分别各取异于端点的一点M F E ,,,则MEF ∆是( )A 钝角三角形B 锐角三角形C 直角三角形D 不能确定 12.某简单几何体的正视图和俯视图是两个全等的矩形, 两边长分别为2和4,当该几何体体积最大时,其表面积 为( )A π10B 40C π16D 64二、填空题(本大题共4小题,4×5分=20分) 13.ABC ∆的三个内角的正弦值之比为5:7:8, 则ABC ∆的最大内角与最小内角之和为_____.14.等比数列{}n a 的前n 项的和为n S ,若10030013S S =,14300100=+S S ,则=200S ____.15.一个几何体的三视图如右图所示,则该 几何体的表面积和体积分别为_____、____.16.若函数()()432+-+=x a x x f 在[]4,1上恒有零点,则实数a 的取值范围是 .A 1A B CDFEB 1D 1C 1A 60oB 45oC 30oD 90o2 2 正视图22侧视图俯视图42 正(俯)视图三、解答题(10分+12分+12分+12分+12分+12分=70分)17. (本题满分10分)已知ABC ∆中,c b a ,,分别是角C B A ,,的对边,2=a ,045=B ,2=∆ABC S(1)求ABC ∆的c 边长;(2)求ABC ∆的内角C A ,的大小.18. (本题满分12分)已知关于x 的不等式032>+-bx ax 的解集为()1,3-(1)求实数b a ,的值;(2)解关于x 的不等式:()a b x 2112log ≤-.19. (本题满分12分)等差数列{}n a 的前n 项之和为n S ,n n S b 1=,且2133=b a ,53S S +21=.(1)求数列{}n a 的通项公式; (2)求数列{}n b 的通项公式; (3)求证:2321<++++n b b b b Λ .20. (本题满分12分)如图,已知正三棱柱111ABC A B C -的底面边长为8,1B C =10,点D 为AC 的中点.(1)求证:11//C BD AB 平面;(2)求异面直线1AB 与1BC 所成角的余弦值 ;(3)求直线11C BD AB 到平面的距离.21. (本题满分12分) 在ABC ∆中,c b a ,,分别是角C B A ,,的对边,且()()ab c b a c b a =-+++(1) 求角C ; (2)若3=c ,求ABC ∆的周长L 的最大值.22. (本题满分12分)已知数列{}n a 满足21=a ,1124+++=n n n a a ()*∈N n . (1)令12+=n nn a b ,求证:数列{}n b 为等比数列; (2)求数列{}n a 的通项公式; (3)求满足240≥n a 的最小正整数n .参考答案 一、每小题5分:BBDAAB ABBDBD 二、每小题5分: 13:32π; 14:4; 15:2723-+π、3322+π; 16:[]8,7三、17:(1)22=c -----------------------------5分 (2)045=A ,090=C -------------------10分 18:(1)1-=a ,2=b ---------------------------6分 (2)⎭⎬⎫⎩⎨⎧≤<2521x x--------------------------12分 19:(1)n a n =--------------------------------- 4分 (2)()12+=n n b n -----------------------------8分(3)2122321<+-=++++n b b b b n Λ-------12分 20:(1)OD ∥1AB ,⊂OD 面BD C 1,1AB ⊄BD C 1 ⇒11//C BD AB 平面--------------4分 (2)251cos =∠BOD ---------------------------8分 (3)距离为131312----------------------------12分 21:(1)32π=C ----------------------------------4分 (2)32max +=L ----------------------------12分 22:(1)⎪⎭⎫⎝⎛+=⎪⎭⎫⎝⎛+⇒++1221211nn n n a a 即n n b b 21=+------4分 (2)nn n a 24-=-----------------------------8分(3)最小正整数为4---------------------------12分。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

…装…………○…………订…………○…………线…………○_姓名:___________班级:___________考号:___________
…装…………○…………订…………○…………线…………○绝密★启用前
2015-2016学年秋期南阳五中第四次
月考数学试卷(文理科)
命题人:代志杰,审题人:孙亚峰 考试时间:120分钟
一、选择题:共12题 每题5分 共60分
1.设
,错误!未找到引用源。

,则A 、
B 的大小关系是
A.错误!未找到引用源。

B.错误!未找到引用源。

C.错误!未找到引用源。

D.错误!未找到引用源。

2.已知数列错误!未找到引用源。

满足
,
其前n 项和为错误!未找到引用源。

,则满足不等式错误!未找到引用源。

的最大正整数错误!未找到引用源。

是 A.3
B.4
C.5
D.6
3.已知数列{a n }的前n 项和为S n ,a 1=1,S n =2a n +1,则S n =
A .2n -1
B .(错误!未找到引用源。

)n -1
C .(错误!未找到引用源。

)n -1
D .错误!未找到引用源。

4.已知为等差数列,错误!未找到引用源。

135105a a a ++=,
,以错误!未
找到引用源。

表示错误!未找到引用源。

的前n 项和,则使错误!未找到引用源。

达到最大值的n 是 A.21
B.20
C.19
D.18 5.等比数列
的各项均为正数,

则错误!未找到引用源。

A.12
B.10
C.8
D.

误!未找到引用
源。

6.在△ABC 中,BC =2,B =错误!未找到引用源。


当△ABC 的面积等于错误!未找到引用源。

时,sin C =
A.错误!未找
B.错误!未找到引用源。

C.错误!未找到引用源。

D.错误!未找到引用源。

到引用源。

7.正项等比数列{a n }中,存在两项a m 、a n 使得错误!
未找到引用源。

=4a 1,且a 6=a 5+2a 4,则错误!未找到引用源。

11m
n
的最小值是
A.错误!未找
到引用源。

B.2
C.错误!未找到引用源。

D.错误!未找到引用源。

8.设a ∈R ,则“a =1”是“直线ax -y +1=0与直线x
-ay -1=0平行”的 A.充分不必要条件 B.必要不充分条件 C.充要条件
D.既不充分也不必要条件
9.已知实数错误!未找到引用源。

满足约束条件错
误!未找到引用源。

,则错误!未找到引用源。

的取值范围是 A.[0,1]
B.[1,2]
C.[1,3]
D.[0,2]
10.已知命题p :若x >y ,则-x <-y ;命题q : 若x <y ,则x
2
>y 2,在命题①p ∧q ;②p ∨q ③p ∧错误!未找到引用源。

④错误!未找到引用源。

∨q 中,真命题是 A.①③
B.①④
C.②③
D.②④
11.已知错误!未找到引用源。

,错误!未找到引用
源。

满足约束条件错误!未找到引用源。

若错误!未找到引用源。

的最小值为1,则错误!未找到引用源。

A.错误!未找到引用源。

B.错误!未找到引用
源。

C.1
D.2
12.下列判断不正确的是
A.命题“若p 则q ”与“若¬q 则¬p ”互为逆否命题
B.“am 2<bm 2”是“a <b ”的充要条件
C.“矩形的两条对角线相等”的否定为假
D.命题“错误!未找到引用源。


”为真
第II 卷(非选择题)
二、填空题:共4题 每题5分 共20分
13.某货轮在A 处看灯塔S 在北偏东30错误!未找
到引用源。

方向,它向正北方向航行24海里到达B 处,看灯塔S 在北偏东75方向.则此时货轮到灯塔S 的距离_________海里.
14.已知命题P :错误!未找到引用源。

则错误!未
找到引用源。


…装…………○…………订…………○…………线…………○_姓名:___________班级:___________考号:___________
…装…………○…………订…………○…………线…………○15.已知错误!未找到引用源。

为正实数,且错误!未找到引用源。

,则错误!未找到引用源。

的最小值为
16.设a+1>0,b+1>0,c+1>0,若a+b+c=-2,则错误!未找
到引用源。

+错误!未找到引用源。

+错误!未找到引用源。

≥ .
三、解答题:写出文字说明或演算步骤。

17.(本题10分)已知不等式错误!未找到引用源。


解集为(1,b ). (1)求a 、b 的值;
(2)解关于x 的不等式ax 2
+bm <(am +b )x
18.(本题12分)已知函数错误!未找到引用源。

(1)求函数错误!未找到引用源。

f(x)的最大值; (2)已知△错误!未找到引用源。

ABC 的面积为3错误!未找到引用源。

,且角
错误!未找到引用源。

的对边分别为错误!未找到引用源。

a,b,c, 若错误!
未找到引用源。

,求错误!未找到引用源。

的值.
19.(本题12分)已知p :错误!未找到引用源。

, q :
错误!未找到引用源。

(1)若a =错误!未找到引用源。

,且错误!未找到引用源。

为真,求实数x 的取值范围.
(2)若p 是q 的充分不必要条件,求实数a 的取值范围.
20.(本题12分)等差数列{a n }的各项均为正数,a 1=
3,前n 项和为S n ,{b n }为等比数列,b 1=1,且b 2S 2=64,b 3S 3=960. (1)求a n 与b n ;
(2)求错误!未找到引用源。

21.(本题12分)某工厂某种航空产品的年固定成本为
250万元,每生产错误!未找到引用源。

件,需另投入成本为错误!未找到引用源。

,当年产量不足80件时,错误!未找到引用源。

(万元).当年产量不小于80件时,错误!未找到引用源。

(万元).每件商品售价为0.05万元.通过市场分析,该厂生产的商品能全部售完.
(1)写出年利润错误!未找到引用源。

(万元)关于年产量错误!未找到引用源。

(千件)的函数解析式; (2)年产量为多少件时,该厂在这一商品的生产中所获利润最大?
22.(本题12分)已知数列{a n }的每一项都是正数,满足
a 1=2且错误!未找到引用源。

-a n a n+1
-2=0; 等差数
列{b n }的前n 项和为T n , b 2=3, T 5=25. (1)求数列{a n }、{b n }的通项公式;
(2)比较错误!未找到引用源。

+错误!未找到引用源。

+…+错误!未找到引用源。

与2的大小; (3)若
1
1b a 错误!未找到引用源。

+22
b a 错误!未找到
引用源。

+…+
n n
b
a <c 恒成立,求整数c 的最小值.。

相关文档
最新文档