【英语】河南省许昌县第一高级中学2015-2016学年高二下学期第一次月考试题

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河南省许昌市五校2015-2016学年高一英语下学期第一次联考试题(有答案)AqUwKl

河南省许昌市五校2015-2016学年高一英语下学期第一次联考试题(有答案)AqUwKl

许昌市五校联考高一下期第一次考试英语试卷考试时间:120分钟分值:150分本试卷分为第I卷(选择题)和第II卷(非选择题)两部分。

第I卷第一部分阅读理解(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,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上用铅笔将该项涂黑。

AEverybody should have some level of first aid ability, because accidents and medical emergencies can happen anywhere at any time. St John First Aid courses give you the knowledge and confidence to provide effective first aid whenever it’s needed.First Aid Level 1Ideal(理想的) for anyone who wants to learn basic first aid or needs to renew their first aid qualification(资格).Courses can be held at St John or your workplace.▲Fee: $162(includes GST)▲Duration(持续时间):Eight hoursFirst Aid Level 2Includes all course content from First Aid Level One, plus an additional half day. Ideal for special first aiders, health and safety managers and anyone who needs a first aid qualification. ▲Fee: $235(includes GST)▲Duration: 12 hoursPre-Hospital Emergency Care (PHEC)Advanced training for first aiders who already hold unit standards 6400 and 6402. Ideal for people who require advanced first aid skills or a pre-hospital emergency care (PHEC) qualification for their work.▲Fee: $635(includes GST)▲Duration: Three daysChild First AidIdeal for parents, grandparents and other family caregivers. A recognized qualification for childcare workers.▲Fee: $65(includes GST)▲Duration: Four hoursOutdoor First AidFirst aid response for accidents and medical emergencies in the wilderness. For groups of eight or more.▲Duration: One to two days depending on expe rienceSports First AidFirst aid response for common sporting injuries and medical emergencies. Includes ACC injury prevention advice.▲Duration: Eight hours1. If you want to learn basic first aid at St John, you must .A. know a little about first aidB. spend eight hours on the courseC. have a first aid qualificationD. take the course at your workplace2. Pre-Hospital Emergency Care teaches people .A. special first aid skillsB. advanced first aid skillsC. first aid in childcareD. injury prevention adv ice3. The main purpose of the text is to .A. introduce the courses about first aidB. teach people knowledge of first aidC. change people’s attitude to first aidD. let people renew their first aid qualificationBPeter waved goodbye and closed the door slowly as Jane left home to visit her grandmother. Expecting a whole day to relax, he was thinking whether to read the newspaper or watch his favorite TV talk show on his first day off in months. “This will be like a walk in the park,” he’d told his wife, “I’ll look after the kids, and you can go to visit your grandma.”Things started well, but just after eight o’clock, his three little “good kids”—Adam, Bob, and Christopher—came down the stairs in their night clothes and shouted “breakfast, daddy.” When food had not appeared within thirty seconds, Adam began using his spoon on Christopher’s head as if it were a drum. Christopher started to shout loudly in time to the beat (节拍). Bob chanted “Where’s my toast, where’s my toast” in the background. Peter realized his newspaper would have to wait for a few seconds.Life became worse after breakfast. Adam wore Bob’s underwear on his head. Bob locked himself in the bathroom, while Christopher shouted again because he was going to wet his pants. Nobody could find clean socks, although they were before their very eyes. Someone named “Not Me” had spilled a whole glass of orange juice into the basket of clean clothes. Peter knew the talk show had already started.By ten o’clock, things were out of control. Christopher was wondering why the fish in the jar refused his bread and butter. Adam was trying to show off his talent by decorating the kitchen wall with his color pencils. Bob, thankfully, appeared to be reading quietly in the family room, but closer examination showed that he was eating apple jam straight from the bottle with his hands. Peter realized that the talk show was over and reading would be impossible.At exactly 11:17, Peter called the daycare centre (日托所).“I suddenly have to go into work and my wife’s away. Can I bring the boys over in a few minutes?” The answer was obviously “yes” because Peter was smiling.4. When his wife left home, Peter expected to .A. have a relaxing day without pressureB. enjoy his first day off work in week sC. watch TV talk show with his childrenD. go out for a walk in the nearby park5. Which of the following did Bob do?A. Using his spoon on Christopher’s head.B. Wearing his underwear on his headC. Reading quietly in the family room.D. Eating apple jam from the bottle.6. Why did Peter ask the daycare centre for help?A. Because he had to pick up his wife back home.B. Because he found it hard to kill the time home.C. Because he wanted to go to his office to work.D. Because he found it hard to look after his boys.7. This text is developed .A. by timeB. by giving examplesC. by comparisonD. by spaceCFacebook is the wor ld’s biggest social network ing site. People are being tricked into Facebook with the promise of a fun, free service without realizing they’re paying for it by giving up loads of personal information.Most Facebook users don’t realize this is happening. Ev en if they know what the company is up to, they still have no idea what they’re paying for Facebook because people don’t really know what their personal data is worth.The biggest problem, however, is that the company keeps changing the rules. Early you could keep everything private. That was the great thing about Facebook—You could create your own little private network. Last year, the company changed its privacy rules so that many things—your city,your photo, your friends’ names— were set, by default (默认),to be shared with everyone on the Internet.According to Facebook’s vice-president Elliot Schrage, the company is simply making changes to improve its service, and if people don’t share information, they have a “less satisfying experience”.Some critics(批评家) think this is more about Facebook looking to make more money. In original business model, which involved selling ads and putting them in the side of the pages totally, who wants to look at ads when they’re online connecting with their friends?The privacy issue has already landed Facebook in hot water in Washington. In April,Senator Charles Schumer called on Facebook to change its privacy policy. He also urged(催促) the Federal Trade Commission to set guidelines for social networking sites. “I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them,” Schrage admits.I suspect that whatever Facebook has done so far to invade our privacy, it’s only th e beginning,which is why I’m considering cancelling(取消) my account. Facebook is a handy site, but I’m upset by the idea that my information is in the hands of people I don’t know. That’s too high a price to pay.8. What do we learn about Facebook from the first paragraph?A. It is a website that sends messages to users who want to get married.B. It earns money by putting on advertisements.C. It provides loads of personal information to its users.D. It makes money by selling its users’ personal data.9. What does the author say about most Facebook users?A. They are unwilling to give up their personal information.B. They care very little about their personal information.C. They don’t identify themselves when using the website.D. They don’t know their personal data enriches Facebook.10. Why does Facebook make changes to its rules according to Elliot Schrage?A. To obey the Federal guidelines.B. To provide better service to its users.C. To improve its users’ connectionD. To expand its business.11. Why does the author plan to cancel his Facebook account?A. He doesn’t want his personal data badly used.B. He finds many of its users untrustworthy.C. He is dissatisfied with its present service.D. He is upset by its frequent rule changes.DElectric cars are dirty. In fact, not only are they dirty, but they might even be more dirty than their gasoline-powered cousins.People in California love to talk about “zero-emissions (排放) vehicles”, but people in California seem to be clueless about where electricity comes from. Power plants(工厂) mostly use fire to make it. Apart from the few people who have their roofs covered with solar cells, we get our electricity from generators (发电机). Generators are fueled by something—usually coal, oil, but also by heat generated in nuclear power plants. There are a few wind farms and geothermal (地热) plants as well, but by far we get electricity mainly by burning something.In other words, those “zero-emissions” cars are likely coal-burning cars. Because the coal is burned somewhere else, it looks clean. It is not true. It's as if the California Greens are covering their eyes—“If I can't see it, it's not happening.” Gasoline is an incredibly (极其) efficient way to power a vehicle; a gallon of gas has a lot of energy in it. But when you take that gas (or another fuel) and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat--at the generator, through the transmission lines, etc.A gallon of gas may drive your car 25 miles. But the electricity you get from that gallonof gas won't get you nearly as far—so electric cars burn more fuel than gasoline-powered ones.If our electricity came mostly from wind or geothermal, or solar, then an electric car truly wouldbe clean. But for political, technical, and economic reasons, we don't use much of those energy sources.In addition, electric cars' batteries which are poisonous for a long time will eventually end up in a landfill (垃圾填埋场). And finally, when cars are the polluters, the pollution is spread across all the roads. When it's a power plant, though, all the junk is in one place. Natureis very good at cleaning up when things are not too concentrated, but it takes a lot longer whenall the garbage is in one spot.12. Which of the following words can replace “be clueless about” in Paragraph 2?A. be familiar with.B. be curious about.C. fail to understand.D. show their interest in.13. The electricity we get from a gallon of gas may make our car run _________.A. at least 25 milesB. more than 25 milesC. less than 25 milesD. as far as 25 miles14. In the author’s opinion, compared with cars using gas, electric cars are more __________.A expensive. B. harmfulC. efficientD. environmentally-friendly15. It can be inferred from the passage that __________.A. electric cars’ batteries are no longer poisonous in the landfillB. now electric cars are used more than their gasoline-powered cousinsC. zero-emissions vehicles should be chosen to protect our environmentD. electric cars are not clean since we get electricity mainly by burning something第二节阅读填句(共5小题;每小题2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。

高二英语月考试题及答案-丰城中学2015-2016学年高二下学期第一次月考试卷

高二英语月考试题及答案-丰城中学2015-2016学年高二下学期第一次月考试卷

丰城中学2015-2016学年下学期高二第一次月考试卷英语命题人:尚超英审题人:鲁永凤2016-4-1本试卷总分值为150分考试时间为120分钟第Ⅰ卷第一部分听力(共两节,每小题1.5分,满分30分)第一节:听下面5段对话。

每段对话后有一个小题。

从小题中所给的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 does the man mean?A. He felt bored.B. He enjoyed the journey.C. He regretted going there.2. What will the woman do on Thursday afternoon?A. To have lessons.B. To write an article.C. To receive a guest.3. How will the man go to work today?A. By car.B. By bike.C. By underground.4. When will the woman see Uncle Bob?A. This morning.B. Tomorrow morning.C. This evening.5. What are they talking about?A. Yesterday’s English test.B. How to face English test.C. Few mistakes in test.第二节: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,各小题给出5秒钟的作答时间。

每段对话或独白读两遍。

听第六段材料,回答第6、7题。

高二英语月考试题及答案-常德市第一中学2015-2016学年高二下学期第一次月考试题

高二英语月考试题及答案-常德市第一中学2015-2016学年高二下学期第一次月考试题

常德市第一中学2015-2016学年高二下学期第一次月考试题第I卷第一部分听力(共20小题;每小题1.5分,满分30分)听下面对话。

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。

每段对话读一遍。

1. Where does this conversation probably take place?A. In a department storeB. In the officeC. In a restaurant2. Who did the woman want to call?A. DrakeB. DanielC. James3. What do we know about Mike?A. He likes travellingB. He likes collecting postcardsC. He is on vacation4. What is the relationship between Jim and Bob?A. Close friendsB. BrothersC. Classmates5. What day is it today?A. TuesdayB. WednesdayC. Sunday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。

6. If possible, what will they do this weekend?A. Go for a picnicB. Go skatingC. Go climbing7. How long will the weather last like this?A. 3 monthsB. 4 monthsC. 2 months听第7段材料,回答第8、9题。

【全国百强校】河南省南阳市第一中学2015-2016学年高二下学期第一次月考理数试题(解析版)

【全国百强校】河南省南阳市第一中学2015-2016学年高二下学期第一次月考理数试题(解析版)

第Ⅰ卷(共60分)一、选择题:本大题共12个小题,每小题5分,共60分.在每小题给出的四个选项中,只有一项 是符合题目要求的.1. 设曲线11-+=x x y 在点)2,3(处的切线与直线01=++y ax 垂直,则=a ( ) A .2 B .21 C .21- D .2-【答案】D考点:导数的几何意义,两直线垂直. 2. 设)(x f 是可导函数,且3)2()(lim 000=∆∆+-∆-→∆xx x f x x f x ,则=')(0x f ( )A .21B .1-C .0D .2- 【答案】B 【解析】试题分析:由题意000000Δ0Δ0(Δ)(2Δ)(Δ)()[(2Δ)()]limlimΔΔx x f x x f x x f x x f x f x x f x x x→→--+---+-= 0000Δ0Δ0(Δ)()(2Δ)()lim limΔΔx x f x x f x f x x f x x x→→--+-=- 0000Δ0Δ0(Δ)()(2Δ)()lim 2limΔ2Δx x f x x f x f x x f x x x→→--+-=--- 000'()2'()3'()f x f x f x =--=-3=,所以0'()f x 1=-.故选B .考点:导数的定义. 3. 用数学归纳法证明)(531214N n n n ∈+++能被8整除时,当1+=k n 时,对于1)1(21)1(453+++++k k 可变形为( ) A .)53(25356121414+++++⋅k k k B .k k 221445533⋅+⋅+C .121453+++k k D .)53(251214+++k k【答案】A 【解析】 试题分析:1)1(21)1(453+++++k k 4412213355k k ++=⋅+⋅4121813255k k ++=⋅+⋅41412156325(35)k k k +++=⋅++,故选A .考点:数学归纳法.4. 已知直线m x y +-=是曲线x x y ln 32-=的一条切线,则m 的值为( ) A .0 B .2 C .1 D .3 【答案】B考点:导数与函数图象的切线.5. 定积分xdx e dx xx sin 2sin 11202⎰⎰-+π的值等于( )A .214-πB . 214+π C .421π- D .12-π【答案】A 【解析】试题分析:因为函数sin xy e x =是奇函数,所以11sin 0xe xdx -=⎰,所以xdx e dx xx sin 2sin 1122⎰⎰-+π201cos 11(sin )2222ππx dx x x -==-⎰11(sin )042242πππ=--=-.故选A .考点:微积分基本定理.6. 函数)(x f 的定义域为R ,2)1(=-f ,对任意2)(,>'∈x f R x ,则42)(+>x x f 的解集为( ) A .)1,1(- B .),1(+∞- C .)1,(--∞ D .),(+∞-∞ 【答案】B【解析】试题分析:设()()24g x f x x =--,则'()'()2g x f x =-,因为'()2f x >,所以'()0g x >,所以()g x 是R 上的增函数,又(1)(1)2(1)42240g f -=--⨯--=+-=,所以不等式()24f x x >+,即不等式()0g x >的解为1x >-.故选B .考点:导数与函数的单调性.7. 设点P 是曲线323+-=x e y x上的任意一点,P 点处的切线的倾斜角为α,则角α的取值范围是( ) A .),32[ππ B .),32[)2,0[πππ C .),65[)2,0[πππ D .)65,2[ππ【答案】B 【解析】试题分析:由已知'xy e =所以tan xαe =>,因为[0,)απ∈,所以2[0,)(,)23ππαπ∈ .故选B .考点:导数的几何意义,直线的倾斜角,正切函数的性质.8. 设)(),(x g x f 分别是定义在R 上的奇函数和偶函数,当0<x 时,0)()()()(>'+'x g x f x g x f ,且0)3(=-g ,则不等式0)()(<x g x f 的解集是( )A .),3()0,3(+∞-B .)3,0()0,3( -C .),3()3,(+∞--∞D .)3,0()3,( --∞ 【答案】D考点:函数的奇偶性,导数与函数的单调性.9. 设ABC ∆的三边长分别为c b a ,,,ABC ∆的面积为S ,内接圆半径为r ,则cb a Sr ++=2,类比这个结论可知:四面体ABC S -的四个面的面积分别为4321,,,S S S S ,内切圆半径为r ,四面体ABC S -的体积为V ,则=r ( ) A .4321S S S S V +++ B .43212S S S S V +++ C .43213S S S S V +++ D .43214S S S S V+++【答案】C 【解析】试题分析:设O 是内切球球心,则O ABC O ACD O BCD O ABD V V V V V ----=+++123411113333S r S r S r S r =+++ 12341()3r S S S S =+++,所以12343Vr S S S S =+++. 考点:类比推理.10. 函数)(x f 是定义在),0(+∞上的单调函数,且对定义域内的任意x ,均有3(()ln )2f f x x x --=,则=)(e f ( )A .13+e B .23+e C .13++e e D .23++e e 【答案】B考点:函数的单调性,抽象函数问题.11. 已知函数)()(ln )(2R b x b x x x f ∈-+=.若存在]2,21[∈x ,使得)()(x f x x f '⋅->,则实数b 的取值范围是( )A .)2,(-∞B .)23,(-∞ C .)49,(-∞ D .)3,(-∞【答案】C考点:不等式有解问题.【名师点睛】联系已知条件和结论,构造辅助函数是高中数学中一种常用的方法,解题中若遇到有关不等式、方程及最值之类问题,设法建立起目标函数,并确定变量的限制条件,通过研究函数的单调性、最值等问题,常可使问题变得明了,本题属于难题.12. 函数393)(23+--=x x x x f ,若函数m x f x g -=)()(在]5,2[-∈x 上有3个零点,则m 的取值范围为( )A.)8,24(- B .]1,24(- C .]8,1[ D .)8,1[ 【答案】D 【解析】试题分析:2'()3693(1)(3)f x x x x x =--=+-,当21x -<<-和35x <<时,'()0f x >,13x -<<时'()0f x <,因此()f x 在(2,1)--和(3,5)上递增,在(1,3)-上递减,(2)1f -=, (1)8f -=,(3)24f =-,(5)8f =,因此直线y m =与(),[2,5]y f x x =∈-上有三个交点时,有18m ≤<,所以函数m x f x g -=)()(在]5,2[-∈x 上有3个零点时,18m ≤<.故选D .考点:函数的零点.【名师点睛】研究函数的性质时常常借助于函数的图象,体现了数形结合思想,函数的零点就是方程的解的问题常常转化为函数图象的交点个数问题来解决,在转化时要求一般转化为直线与函数图象交点,而且函数图象是不变的,变化的是直线,这样研究变化规律才比较方便.第Ⅱ卷(共90分)二、填空题(每题5分,满分20分,将答案填在答题纸上)13. 由直线2,21==x x ,曲线xy 1=及x 轴所谓图形的面积为______. 【答案】2ln 2 【解析】试题分析:由题意212211ln ln 2ln 2ln 2122S dx x x ===-=⎰. 考点:定积分的几何意义.14. 函数x x x f ln )(-=的单调增区间是________. 【答案】(1,)+∞ 【解析】试题分析:函数()f x 的定义域是(0,)+∞,1'()1f x x=-,当01x <<时'()0f x <,当1x >时,'()0f x >,所以()f x 在(1,)+∞上递增. 考点:导数与函数的单调区间. 15. 若函数14)(2+=x xx f 在区间)12,(+m m 上是单调递增函数,则实数m 的取值范围是______. 【答案】(1,0]-考点:函数的单调性.【名师点睛】对基本初等函数我们要记住其单调性的结论,对一般的复合函数的单调性我们一般利用导数来进行研究.(1)当f (x )不含参数时,可以通过解不等式f ′(x )>0(或f ′(x )<0)直接得到单调递增(或递减)区间. (2)导数法证明函数f (x )在(a ,b )内的单调性的步骤:①求f ′(x ).②确认f ′(x )在(a ,b )内的符号.③得出结论:f ′(x )>0时为增函数;f ′(x )<0时为减函数.16. 将全体正整数排成一个三角形数阵:按照以上排列的规律,第n 行(3≥n )从左到右的第3个数为_____.【答案】当n 为偶数时22)1(-+n n ,当n 为奇数时32)1(+-n n考点:归纳推理.【名师点睛】归纳推理是由部分到整体、由特殊到一般的推理,由归纳推理所得的结论不一定正确,通常归纳的个体数目越多,越具有代表性,那么推广的一般性命题也会越可靠,它是一种发现一般性规律的重要方法.三、解答题 (本大题共6小题,共70分.解答应写出文字说明、证明过程或演算步骤.)17. (10分)(1)求证:)(3322b a ab b a ++≥++; (2)已知c b a ,,均为实数,且62,32,22222πππ++=++=++=x z c z y b y x a ,求证:c b a ,,中至少有一个大于0.【答案】证明见解析. 【解析】试题分析:(1)要证不等式)(3322b a ab b a ++≥++,只要证222262a b ab ++≥++,即要证2222620a b ab ++---≥,也即证222()((0a b a b -++≥,而这个不等式显然成立,当然证明时,可以直接利用基本不等式222a b ab +≥证明;(2)本小题结论中含有“至少”字样,可用反证法,即假设,,a b c 都不大于0,即都小于等于0,0,0,0a b c ≤≤≤,于是有0a b c ++≤,而计算a b c ++后配方得0a b c ++>,与出现矛盾,说明假设错误,从而原命题正确.考点:基本不等式,反证法. 18. (12分) 已知n n f 131211)(+⋅⋅⋅+++=.经计算得27)32(,3)16(,25)8(,2)4(>>>>f f f f . (1)由上面数据,试猜想出一个一般性结论; (2)用数学归纳法证明你的猜想. 【答案】(1)23)2(1+>+n f n (或者猜想),2(22)2(N n n n f n∈≥+>);(2)证明见解析. 【解析】试题分析:把已知式改写为24(2)2f >,35(2)2f >,46(2)2f >,57(2)2f >,与自然数1,2,3,4,,n L 联系有13(2)2n n f ++>.(2)根据数学归纳法的步骤,第一步,初始值1n =时,结论由(1)知已经成立,第二步,假设n k =时结论成立,即23)2(1+>+k f k ,则当1n k =+时,21112111111(2)123221222k k k k k f +++++=+++⋅⋅⋅++++⋅⋅⋅+++,由假设有2(2)k f +1123111221222k k k k ++++>+++⋅⋅⋅+++,再利用放缩法得2(2)k f +23122232121212321222++=++=+⋅⋅⋅++++>+++++k k k k k k k k ,从而证得此时结论也成立,由数学归纳法原理知结论成立.考点:归纳推理,数学归纳法.【名师点睛】(1)用数学归纳法证明等式问题,要“先看项”,弄清等式两边的构成规律,等式两边各有多少项,初始值n 0是多少.(2)由n =k 时等式成立,推出n =k +1时等式成立,一要找出等式两边的变化(差异),明确变形目标;二要充分利用归纳假设,进行合理变形,正确写出证明过程. 19. (12分)某地区的电价为)/(8.0h kW ⋅元,年用电量为h kW ⋅亿1,今年电力部门计划下调电价以提高用电量,增加收益.下调电价后新增的用电量与实际电价和原电价的差的平方成正比,比例系数为50.该地区电力的成本是)/(5.0h kW ⋅元.(1)写出电力部门收益y (亿元)与实际电价x 之间的函数关系式; (2)随着x 的变化,y 的变化有何规律; (3)电力部门将电价定为多少,能获得最大收益?【答案】(1)2[150(0.8)](0.5),0.50.8y x x x =+--<<;(2)当64.05.0<<x 时函数递增,当76.064.0<<x 时函数递减,当8.076.0<<x 时函数递增,76.0,64.0==x x 为函数的极值点.(3))/(64.0h kW ⋅元.考点:函数的应用,导数与函数的单调性、函数的最值. 20. (12分)设0≠t ,点)0,(t P 是函数ax x x f +=3)(与c bx x g +=2)(的图象的一个公共点,两函数的图象在点P 处有相同的切线. (1)用t 表示c b a ,,;(2)若函数)()(x g x f y -=在)3,1(-上单调递减,求t 的取值范围. 【答案】(1)2t a -=,t b =,3t c -=;(2)),3[]9,(+∞--∞ . 【解析】试题分析:(1)根据已知条件进行计算即可,把(,0)P t 点坐标代入函数式可得2,a t c ab =-=,由两函数在P 点处的切线相同得'()'()f t g t =,结合刚才的结论可得t b =,因此3t ab c -==;(2)先求得函数()()y f x g x =-的导函数'(3)()y x t x t =+-,由题意,在(1,3)-上函数递减,'0y <,设不等式'0y <的解集为A ,则(1,3)A -⊆,由此可得t 的范围.考点:导数的几何意义,导数与函数的单调性,集合的包含关系.21. (12分)已知函数R a x ax x x f ∈-++=,)1ln()(2.(1)当41=a 时,求函数)(x f y =的极值; (2)若对任意实数)2,1(∈b ,当],1(b x -∈时,函数)(x f 的最大值为)(b f ,求a 的取值范围.【答案】(1)函数)(x f y =在1=x 处取得极小值为432ln -,在0=x 处取得极大值为0;(2)),2ln 1[+∞-. 【解析】试题分析:(1)求出函数的导函数'()f x ,解方程'()0f x =得极值点,列表讨论'()f x 的正负,以确定函数的单调性及极值的类型,可得出结论;(2)同(1)求得[2(12)]'()1x ax a f x x --=+,研究其极值与单调性,当20a ≤时,函数)(x f 在)0,1(-上单调递增,在),0(+∞上单调递减,不存在(1,2)b ∈符合题意;0a >时,'()0f x =的解为0=x 或121-=a x ,下面再按这两根的大小分类,当0121<-a ,即21>a 时,函数)(x f在)121,1(--a 和),0(+∞上单调递增,在)0,121(-a 上单调递减,要满足题意,则1(1)(1)2f f a-≤;当0121>-a ,即210<<a 时,函数)(x f 在)0,1(-和),121(+∞-a 上单调递增,在)121,0(-a上单调递减, 要满足题意,只需⎪⎩⎪⎨⎧≥≤-0)1(1121f a ;当21=a 时,函数)(x f 在),1(+∞-上单调递增,显然符合题意.最后合并即得结论.②当0>a 时,令0)(='x f 有0=x 或121-=ax , 当0121<-a ,即21>a 时,函数)(x f 在)121,1(--a 和),0(+∞上单调递增,在)0,121(-a上单调递减, 要存在实数)2,1(∈b ,使得当],1(b x -∈时,函数)(x f 的最大值为)(b f ,则1(1)(1)2f f a-≤,代入化简得1ln 2ln 2104a a ++-≥,令11()ln 2ln 21()42g a a a a =++->, ∵0)411(1)(>-='a a x g 恒成立,故恒有0212ln )21()(>-=>g a g , ∴21>a 时,1ln 2ln 2104a a ++->恒成立;当0121>-a ,即210<<a 时,函数)(x f 在)0,1(-和),121(+∞-a 上单调递增,在)121,0(-a上单调递减, 此时由题,只需⎪⎩⎪⎨⎧≥≤-0)1(1121f a ,解得2ln 1-≥a ,又212ln 1<-, 所以此时实数a 的取值范围是212ln 1<≤-a ; ③当21=a 时,函数)(x f 在),1(+∞-上单调递增,显然符合题意. 综上,实数a 的取值范围是),2ln 1[+∞-.考点:导数与函数的极值,函数的最值,导数在函数中的综合应用.22. (12分)已知函数)(1ln )(R a x x a x f ∈+-=.(1)求)(x f 的单调区间;(2)若0)(≤x f 在),0(+∞上恒成立,求所有实数a 的值;(3)证明:)1,(4)1(1ln 53ln 43ln 32ln >∈-<++⋅⋅⋅+++n N n n n n n . 【答案】(1)当0≤a 时,)(x f 减区间为),0(+∞,当0>a 时,)(x f 递增区间为),0(a ,递减区间为),(+∞a ;(2)1=a ;(3)见解析.当n k ,...,4,3,2=时,有211ln ,,2353ln ,2243ln ,2132ln -<+⋅⋅⋅<<<n n n ,相加后就能证明题设不等式.(3)由(2)知,当1=a 时,0)(≤x f 在),0(+∞上恒成立,即1ln -≤x x 在),0(+∞上恒成立,当且仅当1=x 时等号成立.令)1,(2>∈=k N k k x ,则有1ln 22-<k k ,即)1)(1(ln 2+-<k k k , 整理得211ln -<+k k k ,当n k ,...,4,3,2=时, 分别有211ln ,,2353ln ,2243ln ,2132ln -<+⋅⋅⋅<<<n n n , 叠加得4)1(2)1(3211ln 53ln 43ln 32ln -=-+⋅⋅⋅+++<++⋅⋅⋅+++n n n n n , 即4)1(1ln 53ln 43ln 32ln -<++⋅⋅⋅+++n n n n 得证. 考点:导数与函数的单调性、极值,构造法证明不等式.【名师点睛】本题中难点是第(3)小题不等式的证明,在解题时我们要紧紧抓住出题者的意图,对于一个较难的问题,出题人一般都会给出几个从易到难的小问题,从而能让我们利用简单的结论解决较难的问题,找出各小题的联系是解决问题的关键.本题中,由(2)得即1ln -≤x x 在),0(+∞上恒成立,令2(1,)x k k k N =>∈,则有22ln 1k k <-,变形后有ln 112k k k -<+,此式左边即为要证不等式左边的各项,联系找到,结论可证.。

河南省许昌县第一高级中学2015-2016学年高二数学下学期第一次月考试题理

河南省许昌县第一高级中学2015-2016学年高二数学下学期第一次月考试题理

2014 级(高二)数学下学期第一次月考试题 ( 理科 )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 卷一、选择题 ( 本大题共 12 小题 , 每小题 5 分 , 共 60 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.已知函数 yx 2 1 的图像上一点( 1, 2)及邻近一点 (1x,2y) ,则y等于xA2 B2xC2 x D 2+( x) 22.已知曲线 y2x 21 在点 M 处的瞬时变化率为 -4 ,则点 M 的坐标是A(1, 3) B(-4 ,33) C(-1 ,3) D不确定3.对任意的 x ,有 f ( x) = 4 x 3, f (1) =- 1,则此函数解析式可以为 ()A . f ( x ) = x 4B . f ( x ) = x 4-2C . f ( x ) = x 4+ 1D . f ( x ) =- x 44.函数 f ( x ) 在 x = 1 处的导数为fx fx)1,则 lim3 x的值为 (x 0312A .3B .-2C.3D .- 35.在曲线 yx 2 上切线倾斜角为的点是4(1, 1) D .(1, 1)A . (0,0)B. (2,4)C.4 162 46.曲线 yx 3 x 2 在 P 点处的切线平行于直线 y4 x 1 ,则此切线方程 是Ay 4x B y 4x 4 Cy 4x 8 Dy 4x 或y 4x 47.设函数 f ( x ) = g ( x ) + x 2,曲线 y =g ( x ) 在点 ( 1,g (1)) 处的切线方程为 y =2x + 1,则曲线 y = f ( x )在点 (1 , f (1)) 处切线的斜率为 ()11A . 4B .- 4C . 2D .-28.已知函数 f ( x ) = x 3- px 2- qx 的图象与 x 轴相切于点(1,0) ,则 f ( x ) 的极值情况为4,极小值 0B4A .极大值.极大值 0, 极小值272744C .极大值 0,极小值- 27D.极大值- 27,极小值 09.如图,抛物线的方程是y= x2-1,则阴影部分的面积是A.2( x2- 1)d x B. |2( x2- 1)d x|00C.2| x2- 1|d xD.1( x2- 1)d x-2( x2-1)d x00110.已知曲线方程f (x) = sin2+2 (a∈ R) ,若对任意实数,直线l:x++= 0 都不是曲线y x ax m y m= f ( x)的切线,则 a 的取值范围是()A.( -∞,- 1) ∪(- 1,0)B. ( -∞,- 1) ∪ (0 ,+∞)C. ( - 1,0) ∪ (0 ,+∞)D.∈R且≠0,a ≠- 1a a11.函数f (x) 1 x3bx2(b2) x 3 在R上不是增函数,则实数b的取值范围是3A. 1 b 2B.b1或 b 2C. 1 b2D. b 1或 b 2 12.已知直线y kx 是 y ln x 的切线,则 k 的值为A. 1B.1C.2D.2 e e e e第 II卷二、填空题 ( 本大题共 5 小题,把答案填在题中横线上)13.21d x=________.x+1x114.若函数f ( x)x3ax24在(0,2)内单调递减,则实数 a 的取值范围是____.15.设函数f '( x)是奇函数f (x)( x R)的导函数,f ( 1)0 ,当 x0 时, xf'(x) f ( x) 0 ,则使得 f (x) 0 成立的x的取值范围是_________.16.已知二次函数 f ( x)=ax2+ bx+ c 的导数为 f '(x),f '(0)>0,对于任意实数 x 都有 f ( x)≥0,则 f (1)的最小值为 ________.f '(0)三、解答题 ( 解答应写出文字说明、证明过程或演算步骤)17. ( 本小题满分10 分 )求由曲线 xy =1及直线 x = y,y=3所围成平面图形的面积.18.( 本小题满分12 分)已知 f ( x)= x3+3ax2+ bx+ a2在 x=-1时有极值0,求常数 a,b 的值.19.( 本小题满分12 分)设函数 f ( x)= a2ln x- x2+ ax( a>0).(1)求 f ( x)的单调区间;(2) 若 e-1≤f ( ) ≤e2对任意x∈ [1 , e] 恒成立,求实数a的取值范围.x20.( 本小题满分12 分)设函数 f ( x)= a e x+1x+ b( a>0).a e(1)求 f ( x)在[0,+∞)内的最小值;3(2)设曲线 y= f ( x)在点(2, f (2))处的切线方程为y=2x,求 a, b 的值.21.( 本小题满分 12 分)已知 f ( x) 3x2x m, g( x) ln x.(1)若函数f(x)与g(x)的图像在x x0处的切线平行,求 x0的值;(2)当曲线y f ( x)与 y g(x) 有公切线时,求实数m的取值范围 .22.( 本小题满分 12 分)已知函数 f ( x)ln x 2a,a R x(1)若函数 f(x)在 1,上是增函数 , 求实数 a 的取值范围 ;(2)若函数 f(x)在 1,e上的最小值为2, 求实数 a 的取值范围 .2014 级(高二)数学下学期第一次月考试题( 理科)答题卷二、填空题(共 4 小题,每小题 5 分,共 20 分)座号13.14.15. 1 6.三、计算题:本大题共 6 小题,共70 分.解答应写出文字说明,证明过程或演算步骤.17.(本小题满分10 分)18.(本小题满分12 分)19.(本小题满分12 分)20.(本小题满分12 分)21.(本小题满分12 分)22.(本小题满分12 分)数学(理科)参考答案1-6 CCB DDD7-12 A ACBDA4 13. ln; 14. [3 , +∞) 15.(, 1)(0,1) ; 16. 2317.解:作出曲线 xy = 1,直线 x = y , y = 3 的草图,所求面积为图中阴影部分的面积.xy =1x = 1 13由y = 3得,故 A ( 3,3) ;y = 3xy =1 x = 1 x =- 1 由得y = 1 或( 舍去 ) ,故 B(1,1) ;y = x y =- 1y =x x = 3,故 C(3,3) .由得y = 3y =318.解:∵ f ( x ) 在 x =- 1 时有极值 0,且 f ′(x ) = 3x 2+ 6ax + b ,f10, 3- 6a + b =0,a = 1,a = 2,∴10,即+ 2= 0,解得= 3,或= 9.f-1+3 -b ba b a当 a = 1,b = 3 时, f ′(x ) = 3x 2+ 6x + 3= 3( x + 1) 2≥0,∴ f ( x ) 在 R 上为增函数,无极值,故舍去.当 a = 2,b = 9 时,f ′(x ) =3x 2+ 12x + 9= 3( x + 1)( x + 3) ,当 x ∈ ( -∞,- 3) 时, f ( x ) 为增函数;当 x ∈ ( -3,- 1) 时, f ( x ) 为减函数;当 x ∈ ( -1,+∞ ) 时, f ( x ) 为增函数;∴ f ( x ) 在 x =- 1 时取得极小值.∴ a = 2,b = 9.19.解: (1) 因为 f(x) = a 2ln x-x 2+ ax ,其中 x>0,所以 f ′(x) =a 2 aa- 2x + a =-.xx由于 a> 0,所以 f(x) 的增区间为 (0 , a) ,减区间为 (a ,+∞ ) .(2) 由题意得 f(1) = a -1≥e - 1,即 a ≥e.由 (1) 知 f(x) 在 [1 , e] 内单调递增,要使 e -1≤f(x) ≤e 2 对 x ∈ (1 , e ) 恒成立.f-1≥e - 1,a解得 a = e.只要2 2 2f a - e + a e ≤e,20. 解: (1) f ′(x ) = a e x- 1x ,a e当 f ′(x )>0 ,即 x >- ln a 时, f ( x ) 在( - ln a ,+∞ ) 上递增;当 f′( )<0 ,即x <- ln a 时, f ( x ) 在 ( -∞,- ln ) 上递减.xa①当 0<a <1 时,- l n a >0, f ( x ) 在 (0 ,- ln a ) 上递减,在 ( - ln a ,+∞ ) 上递增,从而 f ( x )在 [0 ,+∞ ) 上的最小值为f ( -ln a ) = 2 + b ;②当 a ≥1时,- lna ≤0, f ( x ) 在[0 ,+∞ ) 上递增,从而 f ( x ) 在 [0 ,+∞ ) 上的最小值为 f (0)1= a + a + b .21 3221(2) 依题意 f ′(2) = a e - a e 2=2,解得 a e = 2 或 a e =-2(舍去),所以 a 2 11 = 2,代 入原函数可得 2+ + =3,即 = ,e2 bb 221故 a = e 2, b = 2.1 21. 解:( 1) f (x)6x 1, g (x),x由已知 f( x 0 ) g (x 0 ) ,即 6 x 0 11 1 1 ,解得 x 0或 x 0(舍去)x 0231..............4 故 x 0分2(2)设两曲线的公切线为l , 切点分别为 A( x 1 , y 1 ), B(x 2 , y 2 ) ,则 k ABf (x 1)g ( x 2 ) , 故 3x 12 - x 1 m ln x 2 6x 1 11 ,化简消去 x2 得x 1 x 2 x 2m 3x 12ln(6 x 1 1) 1 ,于是公切线的存在问题转化为上面方程有解的问题,令 h( x)3x2ln(6 x 1) 1,则 h ( x)6x6 6(2 x 1)(3x1)(其中 x1 ),11 16x 16x 16由此 x时, h( x)minh( ) ln 2 ,224所以 m1 ln2 时,曲线 yf ( x) 与 y g (x) 有公切线 (12)分42a1 2a22. 解:( 1)f ( x) ln xf (x)xxx2因为 f ( x) 在 1, ) 上是增函数,所以f1 2a0在 1,) 上恒成立,即 ax ) 上恒成立 .( x)x 2在 1,x 2--- ------ 令 g( x) x ,则 a g (x) min , x1,.2因为 ( x 1, ) 1 1x g ( x) min g(1) a.在 上是增函数,所以 ,所以 222 所以实数 a 的取值范围是 , 1 . ..............5 分 2( 2)由( 1)得 f (x) x 2a , x 1,e . x 2 ①若 2a 1 , 则 x 2a 0 , 即 f (x) 0 在 1,e 上恒成立 , 此时 f ( x) 在 1,e 上是增函数 .f (x) min f (1) 2a 2 , 解得 a 1 (舍去) .②若 1 2a e , 令 f (x) 0 , 得 x 2a .当 1 x 2a 时 , f ( x) 0 ,所以 f (x) 在 (1,2a) 上是减函数; 当 2a x e 时, f ( x) 0 ,所以 f ( x) 在 (2a,e) 上是增函数 .f (x) min f (2a) ln 2a 1 2 e,解得 a .2 ③若 2a e ,则 x 2a 0 , 即 f ( x) 0 在 1,e 上恒成立 , 此时 f ( x) 在 1,e 上是减函数,f (x) min f (e) 1 2a 2 , 解得 a e (舍去) .e 2综上所述: e . (12)分a 211。

河南省周口市西华县第一高级中学2015-2016学年高二下

河南省周口市西华县第一高级中学2015-2016学年高二下

高二英语答案:阅读理解(40分)21-40 ABC DABB CBBD CABA GFDAC完形(30分)41-45CACDB 46-50 ACABA 51-55 DCBAC 56-60 DBBAD语法填空(15分)61. that / which 62. faced 63. themselves 64. to work 65. but66. to 67. where 68. confidence 69. an 70. one短文改错(10 分)I am Corn — a delicious food favoring by people and animals. More than 450 years ago, I amfavored was introduced into China. And in∧17th century, I was grown a lot in Tibet and Sichuan so I did notthe becauseneed much water like rice. Today you can see me nowhere around the world. People living in theeverywherewest prefer to boil and eat my fruits with salt or butter. Therefore, people in each other placesHoweveroften make my fruits into powder, that will later be mixed with water and other things. In this way,whichmany different kind of food can be made. So now you see, people can not live in the absent of me.kinds absence书面表达(25分)One possible version:Dear Mr. Wang,Knowing that our library is going to buy books, I’d like to give some suggestions.What we need most are popular science books. Usually popular science books explain basic principles of nature in a simple and interesting way. They help us understand science subjects better and arouse our curiosity about scientific discoveries.In addition to reading for knowledge, we read for fun and inspiration. That is why I recommend another category of books:literary books. Classic works, written by masters, present great thoughts through fascinating stories and language. They not only offer us joy and excitement, but also encourage us to think critically.I’ll be glad if you can consider my recommendation.Yours sincerely,Li Hua。

河南省许昌市鄢陵县第一高级中学2015-2016学年高二上学期第二次月考(A卷)化学试题解析(解析版)

可能用到的相对原子质量:H:1 C:12 N:14 O:16 Na:23 K:39 Cu:64 Ag:108第I卷(选择题)一、单选题(本题共包括16小题,每小题只有一个正确答案,每小题3分,共48分)1.工业生产硫酸过程中,SO2在接触室中被催化氧化为SO3气体,已知该反应为放热反应。

现将2 mol SO2、1 mol O2充入一密闭容器充分反应后,放出热量98.3 kJ,此时测得SO2的转化率为50%,则下列热化学方程式正确的是()A.2SO2(g)+O2(g)2SO3(g) ΔH=-196.6 kJ·mol-1B.2SO2(g)+O2(g)2SO3(g) ΔH=-98.3 kJ·mol-1C.SO2(g)+12O2(g)SO3(g) ΔH=+98.3 kJ·mol-1D.SO2(g)+12O2(g)SO3(g) ΔH=-196.6 kJ·mol-1【答案】A【解析】)2SO)SO考点:考查了热化学方程式的书写的相关知识。

2.某烃不与溴水反应,能使酸性高锰酸钾溶液褪色,在Fe存在下与Cl2反应,能生成两种一氯代物,该烃是()A.CH≡C—CH3B.对二甲苯C.对甲乙苯D.邻甲乙苯【答案】C【解析】试题分析:该烃不能使溴水褪色,排除A;在铁催化下与氯气反应,是苯环上的取代反应,B只能得到一种一氯代物,C得到两种一氯代物,D得到四种一氯代物,故选C。

考点:考查了有机物的结构和性质的相关知识。

3.500 mL 1 mol/L的稀HCl与锌粒反应,不会使反应速率加快的是()A.升高温度B.将500 mL 1 mol/L的HCl改为1000 mL 1 mol/L的HClC.用1 mol/L的H2SO4代替1 mol/L的HClD.用锌粉代替锌粒【答案】B【解析】试题分析:A、升高温度,反应速率增大,故A不选;B、改为1000 mL 1 mol/L的HCl,浓度不变,反应速率不变,故B选;C、用1 mol/L的H2SO4代替1 mol/L的HCl,氢离子浓度增大,反应速率增大,故C不选;D、用锌粉代替锌粒,固体表面积增大,反应速率增大,故D不选.故选B。

河南省获嘉县第一中学2015-2016学年高二下学期第一次月考试卷

河南省获嘉县第一中学2015-2016学年高二下学期第一次月考试卷生物试卷一、选择题(共40题、共60分)1.下列哪一实例能证明微量元素是生命活动所必需的A.Mg是叶绿素的组成成分 B.油菜缺少B时只开花不结果C.哺乳动物血液中Ca2+含量太低会抽搐 D.缺P会影响ATP的合成2.生物体内的蛋白质千差万别,其原因不可能是()A.组成蛋白质的氨基酸种类和数量不同 B.组成肽键的化学元素不同C.氨基酸排列顺序不同 D.蛋白质的空间结构不同3.已知一个DNA分子中有2000个碱基对,其中胞嘧啶有1100个,则这个DNA分子应含有脱氧核苷酸数和腺嘌呤数为()A.4000个和900个 B.4000个和1800个C.2000个和450个 D.2000个和900个4.下列各项对组成细胞有机物的描述,正确的是()A.细胞质中仅含有核糖核酸B.组成淀粉、糖原、纤维素的单体都是葡萄糖C.多肽链在核糖体上一旦形成便具有生物活性D.DNA是生物体进行生命活动的主要承担者5.下列关于无机盐在生物体内所起作用的叙述中,错误的是()A.叶绿素中含有镁元素说明某些金属元素可以成为一些复杂蛋白质的构成元素B.合成ATP、DNA、RNA、磷脂等物质时,都需要磷酸盐作原料C.观察人的口腔上皮细胞时要用浓度为0.9%的生理盐水说明无机盐在维持细胞的形态中有重要作用 D.人缺碘会患大脖子病,是因为碘是合成甲状腺激素的重要原料6.生物膜系统在细胞生命活动中有着多方面的重要作用,下列叙述错误的是()A.生物体内的所有膜结构共同构成生物膜系统B.广阔的膜面积为酶提供了大量的附着位点C.在细胞内外的物质运输等过程中起决定性作用D.生物膜系统的组分在结构和功能上有紧密的联系7.下列生化反应肯定在细胞器中进行的是()A.细胞内ATP的合成 B.人体内各种消化酶的合成C.醋酸杆菌利用葡萄糖进行有氧呼吸D.二氧化碳的固定8.下列关于细胞核的叙述,不正确的是()A.细胞核内存在染色质 B.核仁参与核糖体形成C.核孔是某些大分子物质进出细胞核的通道 D.核膜不属于细胞的生物膜系统9.如图为某学生在做一定浓度的蔗糖溶液对细胞影响的实验中所观察到的细胞图,请判断下列叙述中正确的是A.图中1、2、6组成了细胞的原生质层B.图中细胞处于质壁分离状态,此时6处的浓度一定大于7处的浓度C.图中1是细胞壁,6中充满了蔗糖溶液D.图中7是细胞液,在细胞发生质壁分离过程中,其颜色逐渐变浅10.甲为细胞膜的亚显微结构模式图,图乙为图甲细胞膜的磷脂分子结构模式图,下列有关描述错误的是A.图甲中的①②③共同为细胞的生命活动提供相对稳定的内部环境B.将图乙平展在水面上,A部分与水面接触C.图甲中②与细胞的选择吸收有关,①②可作为气味分子的受体并完成信息的传递D.图乙分子可识别“自己”和“非己”的成分11.下列有关物质出入细胞的叙述,正确的是()A.新鲜的萝卜条中加入适量的食盐,片刻后有水分渗出说明细胞已经死亡B.必需消耗能量才能进入细胞不一定都是主动运输C.由核糖体合成的性激素需要借助于载体才能进入靶细胞D.离子、氨基酸、葡萄糖等都是通过主动运输的方式进入细胞12.下列关于酶的叙述,不正确的是()A.细胞内的酶都是在核糖体上合成的 B.酶能降低反应的活化能C.所有的酶都具有专一性 D.酶可以在细胞外起催化作用13.光合作用过程中光反应为暗反应提供的物质是()A.[H]和ATP B.H2O和CO2 C.五碳化合物和酶 D.三碳化合物14.人体内代谢终产物CO2形成的场所是A.线粒体和细胞质基质 B.线粒体基质 C.肺泡 D.细胞质基质15.如图为人体细胞的生命历程,有关叙述正确的是()A.3过程由于遗传物质的改变而形成不同种类的细胞B.4过程的细胞内多种酶活性降低影响细胞代谢C.5过程是在致癌因子的作用下,细胞内的原癌基因突变为抑癌基因所致D.6过程一定会引起人体的衰老与死亡16.关于纯合子和杂合子的叙述错误的是 ( )A.纯合子自交的后代能够稳定遗传 B.杂合子自交的后代会发生性状分离C.纯合子和杂合子相互杂交,后代都是杂合子 D.杂合子的自交后代也会出现纯合子17.对下列有关细胞分裂的各图分析正确的是()A.甲乙两图所示细胞中都有2个染色体组 B.甲乙两图对应丁图中的CD段C.甲图可能是卵原细胞的增殖 D.丙图中染色体与DNA的比是2∶118.等位基因分离的原因是,减数分裂第一次分裂过程发生了A.同源染色体的分离 B.非同源染色体的自由组合C.同源染色体的配对 D.非姐妹染色单体的交叉互换19.人的下列各组细胞中,肯定都有Y染色体的是()A.受精卵和次级精母细胞 B.受精卵和初级精母细胞C.初级精母细胞和男性的神经细胞 D.精子和人的肠上皮细胞20.下列有关生物体内遗传物质的叙述,正确的是()A.豌豆的遗传物质主要是DNA B.酵母菌的遗传物质主要分布在染色体上C.T2噬菌体的遗传物质含有硫元素 D.HIV的遗传物质水解产生4种脱氧核苷酸21.下列选项中,不能体现细胞的结构与功能相适应的是A.代谢旺盛的细胞中核孔数目相对较多B.唾液腺细胞中的高尔基体数量较多C.草履虫出现两个细胞核,保证了正常的核质比,有利于生命活动正常进行D.在mRNA合成的同时就会有多个核糖体结合到mRNA上22.真核生物的性状从根本上来说决定于()A.tRNA上碱基的排列顺序 B.mRNA上碱基的排列顺序C.DNA上碱基的排列顺序 D.构成蛋白质的氨基酸的排列顺序23.下列有关基因突变、基因重组的叙述错误的是A.基因突变属于在分子水平上的变异 B.基因重组可通过光学显微镜观察到C.基因重组可以产生新的基因型 D.基因突变和基因重组均可引起生物性状的改变24.下列有关变异的说法正确的是A.染色体中DNA的一个碱基对缺失属于染色体结构变异B.染色体变异、基因突变均可以用光学显微镜直接观察C.同源染色体上非姐妹染色单体之间的交叉互换属于基因重组D.秋水仙素诱导多倍体形成的原因是促进染色单体分离使染色体加倍25.将抗虫基因导入玉米的体细胞中,培育成抗虫玉米新品种,该育种方法属于A.单倍体育种 B.转基因育种 C.杂交育种 D.多倍体育种26.正常情况下,以下物质不可能成为人体内环境组成成分的是()。

河南省许昌县第一高级中学高二英语下学期第三次月考试题

2014级(高二)英语下学期第三次月考试题本试题卷共11页,分第I卷和第Ⅱ卷两部分。

全卷满分150分。

考试用时120分钟。

第Ⅰ卷第一部分:听力(共两节,满分30分)(略)第二部分阅读理解(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,从每题所给的四个选项(A 、B 、C 和 D )中,选出最佳选项。

ALearning Chinese Online!Chinese hosts all kinds of online courses about Chinese language, Chinese culture and China.Join the free courses written and compiled by experienced Chinese language teachers.We also host internal courses for schools and companies. Users will find your courses in the course catalogue or log in to the course through the link provided by your teachers or tutors.You can get new friends in the community, with voice and text chat!Sign up today! Get a Chinese passport with your Chinese name! Prepare yourself for China!Teaching Chinese Online!Chinese offers free LMS (learning management system) and web spaces for online education. Our platform is powered by EDUIT—one of the most popular LMS system in China. What’s more, Chinese has been mentioned and praised three times in HMCI’s famous schools lists.Besides its common functions for any web courses, it has special functions for Chinese language lea rning and course making, including dictionaries, sound files for common words, and flash cards for Chinese characters!For teachers or anyone who would like to make a Chinese course, we have the platform and web space for you. You can make an open course or just a course for your own students in your school.Just type in Chinese characters, click, click, and you get pinyin ready, very easy to use.Sign up today, and start to share your knowledge online!21. Which of the following is NOT true about the internal courses on the web?A. They are designed by excellent Chinese language teachers.B.. They charge students who want to learnC. They include many sides about ChinaD. They can be made by yourself if you want to make a course.22. Which of the following can you NOT do in the Chinese ?A. Making friends.B. Talking with friends.C. Learning English.D. Having a platform and web space for you23. HMCI is probably the name of _______.A. a school leaderB. an educational organizationC. a political partyD. a news reporterBI was in a strange city I didn’t know at all, and what’s more, I could not speak a word of the language. On my second day I got on the first bus that passed,ro de on it for several stops, then got off and walked on. The first two hours passed pleasantly enough, then I decided to turn back to my hotel for lunch. After walking about for some time, I decided I had better ask the way. The trouble was that the only word I knew of the language was the name of the street in which I lived, and even that I pronounced badly. I stopped to ask a newspaper-seller. He handed me a paper. I shook my head and repeated the name of the street and he put the paper into my hands. I had to give him some money and went on my way. The next person I asked was a policeman. He listened to me carefully, nodded and gently took me by the arm. There was a strange look in his eyes as he pointed left and right and left again.I nodded politely and began walking in the direction he pointed.About an hour passed and I noticed that the houses were getting fewer and fewer and green fields were appearing on either side of me. I had come all the way into the countryside. The only thing left for me to do was find the nearest railway station.24.The writer preferred to walk back to his hotel because.A. he had no money to buy a ticketB. he wanted to lose himself in the cityC. it was late and there were no buses passing byD. he tried to know the city in this way25. The newspaper-seller______.A. didn’t understand what the writer saidB. didn’t know where the hotel wasC. could understand what the writer saidD. didn’t want to take the money from the writer26. From the story we know that the policeman______。

精品:河南省许昌县第一高级中学2015-2016学年高一下学期第一次月考语文试题(解析版)

一、选择题(每小题2分)(一)成语运用1.依次填入下列各句横线处的成语,最恰当的一组是()①正因为李老师对学生的挚诚与关爱,学生才更愿意与她________地交谈,遇到困难时也主动向她寻求帮助。

②中美在大数据、云服务等多个方面都需要思想之间的碰撞,面对最为敏感的网络问题,________的探讨才是妥当地解决问题的方式。

③只有领导敢于把敏感的、实质性的问题摆在桌面上,不避重就轻,群众才会________、知无不言。

A.开诚布公推心置腹披肝沥胆B.披肝沥胆开诚布公推心置腹C.推心置腹披肝沥胆开诚布公D.推心置腹开诚布公披肝沥胆【答案】D考点:正确使用词语(包括熟语)。

能力层级为表达运用E。

2.依次填入下列各句横线处的成语,最恰当的一组是()①住房城乡建设部要求对私人会所的整治进行一次“回头看”,防止其________、死灰复燃。

②这几年,荧屏戏路越走越窄,创作播出渐陷困局,不少电视剧导演纷纷________,签约新公司,转投电影圈拍电影。

③内外交困下的安倍,不得不________,在联合国大会的演讲中,一改其对中国的强硬态度,表示要同中国恢复“良好关系”,试图将修复中日关系作为摆脱困境的出路。

A.改换门庭改弦易辙改头换面B.改头换面改换门庭改弦易辙C.改弦易辙改换门庭改头换面D.改头换面改弦易辙改换门庭【答案】B【解析】试题分析:明确了这些成语的意思和用法,然后根据语境进行判断,即可选出答案。

改头换面:比喻只改形式,不变内容(含贬义)。

改换门庭:①改变门第出身,提高社会地位;②投靠新的主人或势力,以图维持、发展。

改弦易辙:改换琴弦,变更行车道路,比喻改变计划或做法。

考点:正确使用词语(包括熟语)。

能力层级为表达运用E。

3.依次填入下列各句横线处的成语,最恰当的一组是()①军人必须以________的紧迫感去练兵习武,否则,打赢未来战争就是一句空话。

②面对网络购物快速崛起带来的巨大冲击,传统零售企业电商化转型________。

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1 许昌县一高高二英语第一次月考英语试题 命题人:李根生 第I卷 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40分) 阅读下列短文,从每小题所给的四个选项(A、B、C和D)中,选出最佳选项。 A Snowflakes seem like white stars falling from the sky. But they don’t always look white. Sometimes they appear to have other colors. Some are red, yellow, or black. There have been snowflakes of almost every shape. Think how it would seem to have these coming all around you. Wouldn’t they look pretty? Black snow came down in France one year. Another year gray snow fell in Japan. It was found that such snow was mixed with ashes. This made it seem dark. Red snow has come down in other countries. When this happened, it was mixed with red dust. That is why it looked different. Most snow looks like white, but it is really the color of ice. It is ice that comes from snow clouds. Each snowflake begins with a small drop of water. More water forms around this drop. The way the water freeze gives the snowflake its shape. No two snowflakes are of ever just the same size or shape. All start out flat and have six sides. Some snowflakes are broken when they hit the ground, others melt as they fall. When the air is cold and dry, the falling snowflakes are small and hard. If the air is wet and warm, the snowflakes are big and soft. Would you be surprised to see snowflakes as big as your head falling from the sky? It happened once in our country. It could occur again. 1. Snowflakes are _________ according to the writer. A. white stars. B. always white. C. of similar shapes D. pretty 2. According to the passage, if the snowflakes are hard and small, the weather should be _________. A. cold and wet. B. cold and dry. C. wet and warm. D. dry and wet. 3. We can infer from the last paragraph that very large snowflakes _________. 2

A. occur regularly. B. will occur regularly C. occur once a year. D. don’t often occur. 4. Which of the following statements is true? A. Color snowflakes look so because they are mixed with dust of different colors. B. All snowflakes look white, and it is the color of the ice. C. Probably there are two snowflakes of the same size and shape. D. Most snowflakes are made from water and dust. B When I lived in Spain, some Spanish friends of mine decided to visit England by car. Before they left, they asked me for advice about how to find accommodation. I suggested that they should stay at “bed and breakfast” houses, because this kind of accommodation gives a foreign visitor a good chance to speak English with the family. My friends listened to my advice, but they came back with some funny stories. “We didn’t stay at bed and breakfast houses,” they said, “because we found that most families were on holiday.” I thought this was strange. Finally I understood what had happened. My friends spoke little English, and they thought “VACANCIES” meant “holidays”, because the Spanish word for “holidays” is said “vacaciones”. So they did not go to house where the sign outside said “VACANCIES”, which in English means there are free rooms. Then my friends went to houses where the sign said “NO VACANCIES”, because they thought this meant people who owned the house were not away on holiday. But they found that these houses were all full. As a result, they stayed at hotels. We laughed about this and about mistakes my friends made in reading other signs. In Spanish, the word “DIVERSION” means “fun”. In English, it means that workmen are repairing the road, and that you must take a different road. When my friends saw the word “DIVERSION” on a road sign, they thought they were going to have fun. Instead, the road ended in a large hole. English people have problems too when they learn foreign languages. Once in Paris when someone offered me some more coffee, I said “Thank you” in French, I meant that I would like some more, however to my surprise the coffee pot was taken away! Later I found out that “Thank you” in French means “No, Thank you”. 5. The author’s Spanish friends wanted advice about _______. 3

A. some funny English stories B. finding places to stay in England C. driving their car on English roads D. going to England by car 6. The author suggested that they stay at “bed and breakfast” because _______. A. it would be convenient for them to have dinners and live B. it would be much cheaper than staying in hotels C. they would be able to practice their English in the house D. there would be no problem about finding accommodation there 7. “NO VACANCIES” in English means _______. A. no free rooms B. free rooms C. not away on holiday D. they don’t live 8. If you see road sign that says “Diversion” in England, you will _______. A. take the road and you will be excited B. have a lot of fun and enjoy yourself C. find that the road is blocked by crowds of people D. have to take a different road C Even if trees cannot walk, they are still on the move. In parts of the Arctic, entire forests are moving northward. Across the Arctic, temperatures are rising faster than anywhere else in the world. As that happens, the tree line that marks where forests stop and the treeless tundra (冻土地带)starts has been shifting northward. Trees growing along the tree line must protect themselves from the cold wind. To do this, plants tend to grow horizontal (水平的)branches low to the ground. The energy it takes for trees to grow this way means they don't have enough energy to make seeds. But as Earth's climate has been warming, trees no longer have to just grow horizontally. Many can instead grow up toward the sky. This takes less energy. And with all the leftover energy. these trees have started producing more seeds. This happens especially in places where the white spruce (白云杉)grows. White spruce, which is a North American tree, is quite able to produce a lot of seeds, which can move long distances in the wind. When wind-blown seeds end up on the tundra beyond the tree line, they eventually can sprout (发芽) new trees. This explains how a forest can move. Of course, the process would work only if the tundra were warm enough. But in recent years, the

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