河北省保定市第三中学 2014高考押题卷

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河北省保定市2014届高三第二次模拟考试数学(文)试题(扫描版)

文科数学答案一.选择题：A 卷：ABCAB BDDCC DB B 卷：ACBAB BDCDC DB二.填空题：13. 120； 14. 4x-y-3=0； 15.16. 18.三.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12分）解：（1）∵cos A B ==∴ sin sin A B ====----------------3分cos()cos cos sin sin 5105102A B A B A B +=-=-= ∵ 0A B π<+<∴ 4A B π+=∴34C π=………………………………6分（2）法一：由113sin sin 1224ab C ab π===得ab =8分同理得bc ca ==分所以2()80abc =，故abc =2分法二：由113sin sin 12244ab C ab ab π===得ab =8分由sin sin sin a b c A B C==得==，即,a c =---------------------10分22b a =∴= ∴ c ==即、、a b c 的值分别为2所以abc =2=2分 18．（本小题满分12分）解：(1) x =（2+3+4+5+6）/5=4……………1分y =（2.2+3.8+5.5+6.5+7.0）/5=5…………………2分 x y =20………………………………………3分1ni ii x y =∑=(2×2.2+3×3.8+4×5.5+5×6.5+6×7.0)=112.3……………4分221nii xnx =-∑=90-80=10……………5分所以1221112.3-100==1.2310ni ii nii x y nxy b xnx ==-=-∑∑……………7分a yb x --=-=5-1.23×4=0.08……………8分故线性回归方程为ˆ 1.230.08yx =+……………9分 (2)将x=8，代入回归方程得ˆ 1.2380.08=9.92y=⨯+（万元）………………………12分 19. （本小题满分12分）证明(1)因为等边△ABC 的边长为3,且AD DB=12CE EA =, 所以1AD =,2AE =. 在△ADE 中,60DAE ∠=, 由余弦定理得3DE ==. 因为222AD DE AE+=,所以AD DE ⊥. ………………………3分折叠后有1A D DE ⊥,因为平面1A DE ⊥平面BCED , 又平面1A DE平面BCED DE =,1A D ⊂平面1A DE,1A D DE ⊥,所以1A D ⊥平面BCED故A 1D ⊥EC.…………6分（2）因为1313312sin 60=32sin 60=42222ABCADEDBCSS S==⨯⨯=⨯⨯，所以DECABC ADE DBCSSSS=--8分又2222cos604967,DC BD BC BD BC DC =+-=+-=∴=9分1A D ⊥平面BCED ，设三棱锥E-A 1CD 的高为h1111111331121=7=2214DEC A DC S A D Sh A D DC A D h A D h h ∴==∴，所以三棱锥E-A 1CD ………………………12分 20. （本小题满分12分）解：（1）因为4()3ln f x x x x=+++1 所以2221434,(0)()3x x x x x x f x +--=>'=+.......................2分令()0f x '>得1x >（43x <-舍去）令()0f x '<得01x <<∴()f x 的减区间为(0,1)，增区间为(1,)+∞...........................5分（2）由（1）可知，①当11a e<≤时，函数()f x 在1[,]a e 上递减，∴max 13()()4f x f e e e==+∴min 4()()3ln 1f x f a a a a==+++....................7分②当1a e <≤时，函数()f x 在1[,1]e上递减，在[1,]e 上递增∴min ()(1)8f x f ==，()()f a f e ≤............................9分21134(1)2()()()()14310e f f a f f e e e e e e e e--∴-≥-=-+---=>即1()()f f a e> ∴max 13()()4f x f e e e==+...................................12分 21. （本小题满分12分）解：⑴由21222222=-==ab a ac e ，可得222b a =，………………………1分椭圆方程为)0(,122222>>=+b a b y b x ，代入点⎪⎪⎭⎫ ⎝⎛--26,1可得4,222==a b ，故椭圆E 的方程为,12422=+y x ………………………4分 ⑵由0x my t --=得x my t =+，把它代入E 的方程得：()0422222=-+++t mty y m，设()1122(,),,M x y N x y 得：24,222221221+-=+-=+m t y y m mt y y ，()24222121+=++=+m t t y y m x x()()()2422222212122121+-=+++=++=m m t t y y tm y y m t my t my x x …………………7分因为以MN 为直径的圆过点A,所以AN AM ⊥，………………………8分所以ANAM ⋅()()()212121221142,2,2y y x x x x y x y x ++++=+⋅+=()()022322483244242242222222222=+++=+++=+-+++⨯++-=m t t m t t m t m t m m t ………10分因为M 、N 与A 均不重合，所以2t ≠- 所以，32-=t ，直线l 的方程是32-=my x ，直线l 过定点T ⎪⎭⎫⎝⎛-0,32 由于点T 在椭圆内部，故满足判别式大于0 所以直线l 过定点T ⎪⎭⎫⎝⎛-0,32……………12分 22. （本小题满分10分）选修4—1：几何证明选讲（1）证明：连结OA,因为⊙O 的直径为15，所以OA=OB=7.5 又PA=10，PB=5，所以PO=12.5………………………2分在△APO 中，PO 2=156.25，PA 2+OA 2=156.25即PO 2= PA 2+OA 2，所以PA ⊥OA ，又点A 在⊙O 上故PA 与⊙O 相切………………………5分（2）解：∵PA 为⊙O 的切线，∴∠ACB=∠PAB, 又由∠P=∠P, ∴△PAB ∽△PCA,∴21105===PA PB AC AB ………7分设AB=k ，AC=2k, ∵BC 为⊙O 的直径且BC=15 ，AB ⊥ACC∴=15BC ==所以k =∴21124522ACB AC AB k k S k ∆=∙=∙∙== ………………10分 23. （本小题满分10分）选修４－４：坐标系与参数方程解：（1）由3143x t y t =+⎧⎨=+⎩得11333344x t x y y t-⎧=⎪--⎪⇒=⎨-⎪=⎪⎩所以直线l 的普通方程为：4350x y -+=，………………………2分由22cos 2cos a a ρθρρθ=⇒= 又222,cos x y x ρρθ=+=所以，圆C 的标准方程为222()x a y a -+=，………………………5分（2）因为直线l 与圆C 恒有公共点，a ≤，…………7分两边平方得2940250,(95)(5)0a a a a --≥∴+-≥所以a 的取值范围是559a a ≤-≥或.……………………………………………10分 24.（本小题满分10分）选修4—5：不等式选讲解：（1）因为32,1()4,113,1x x f x x x x x +>⎧⎪=+-≤≤⎨⎪-<-⎩………………………3分所以当x >1时，由4()63263f x x x <⇔+<⇔<，又x >1 所以413x <<当11≤≤-x 时，()6462f x x x <⇔+<⇔<，又11≤≤-x ，所以11≤≤-x当1-<x 时，()6362f x x x <⇔-<⇔>-，又1-<x 所以21x -<<-综上，所求的解集为4|23x x ⎧⎫-<<⎨⎬⎩⎭。

河北省保定市2014届高三10月摸底考试英语试题(扫描版)

保定市2013年高三摸底试题英语参考答案1 ---5 CCAAB 6---10 CABCB 11---15 BABCC 16---20 BACAC21---25 BDBAD 26---30 BCCBA 31---35 CABCD36---40 CDBCB 41---45 AABDC 46---50 CACDB 51---55 ACABD56---60 BCCDD 61---65 CBDBA 66---70 BCDCB 71---75 BCFGDA few months after return to the US from Spain, I took a French course in college .returningSince I have learned to speak good Spanish in Spain, I thought it could^ interesting to beginhad bestudying other language. In the first class, our teacher asked us to do a pronunciation exercise,anotherfrom which he would say a word and two in French, and each of us would do his best to copy.in/during orWhen he got to me, he kept having me t\o say more word. Finally I asked him why. "I find itwordsgreat fun. It's the first time I’ve heard ^ American speak French with a Spain accent" , hean Spanish explained to me excitedly.Possible version:Dear Sir/Madam,I’m Li Hua. I’m eager to join the winter camp --- A Visit to Harvard University. I think it is a good chance for me to learn about Harvard University and American culture which will help broaden my view and enrich my life. By the way, it can also help improve my English study. I have a strong belief that the visit to Harvard University is surely worthwhile.I'm fond of reading, traveling and meeting new people. Besides, I do quite well in English and can talk with foreigners freely. I hope I will be accepted as a member of the winter camp.Looking forward to your reply!Yours,Li Hua Text1W: Listen, Andy. What’s the noise? It sounds like it comes from upstairs.M: I don’t think so. It must be the window-cleaner working, next door.Text2M: How are you getting to the airport, Daisy?W: I’m going to take the underground. I can get off just inside the airport. A bus is a little bit slow and a taxi is too expensive.Text3W: Do you mind if we discuss the study plan before dinner this evening?M: N ot at all. I certainly don’t want to discuss it over our meal.Text 4W：Is Tom back, Jim?M：No, not yet．Do you know why, Lucy?W：I am afraid he broke the rule．That is what Jack told me just now．Text5W: I hear you’re planning a trip for this winter va cation, Mark?M: I hope to tour Australia if I can finish my degree in time and save enough money.Text 6W: Hi, Robin. This is Aileen.M: Oh, hi. How are things?W: Just fine, thanks. Uh, are you doing anything on Saturday evening?M: Hmm, Saturday evening? Let me think. Oh, yes. My cousin just called to ask me to pick him up at the station..W: Oh, that’s too bad! It’s my birthday. I’m having dinner with Daniel, and I thought I’d invite a few friends over and make it a party.M: I’m really sorry, but I won’t be able to make it.W: I’m sorry, too. But that’s OK.Text7M：Mary, is it true you are going to leave us for Boswell?W：Yes, you know, Tom has got a new job there．M：You are going to miss Highland Park, aren't you?W：Oh, indeed．But it is a much greater opportunity for Tom．His salary will be higher Also, there are better schools for the children．M：Yes, there are so many factories．There's probably a lot of air pollution, isn't there? W：Yeah, and not much green area．But that is life, I guess．M：Are you going to stop working?W：I believe I will have to at first, but I may get a job of teaching．There is a new high school there and they are looking for teachers．Text 8M: Good morning, ma’am. Can I help you?W: Well, I’m looking for something I saw at a friend’s house a few days ago. He said hebought it here. It’s a gold metal desk lamp. It would be just perfect for my study.M: Take a look at some of the model pictures here and see if you can find the right one.W: Picture 2 on page three seems to be the one I’d like to have.M: I’m sorry, but we don’t have it in stock right now.W: Oh, that’s too bad. Are you going to be getting more?M: They are on order. But I should warn you that the price has gone up. The new ones will be 2 dollars more. They were $14.50 last week. Today is Friday. Come back in five days if you like. We should have them by then.W: OK, I’ll be back.Text 9W: Hi, David! Mr. Harper has just asked me if you’d finished your project yet. It was supposed to be in yesterday.M: I kno w. I’m just finishing it now.W: He wanted to know if we’d done them together. I said no. What’s yours on? It took me ages to do mine.M: Well, I was really lucky. I found this book all about the population in New Zealand cities.W: Is it good?M: Yes, i t’s great—look! I photocopied three chapters. There are some brilliant charts and…W: What are you going to do with all that?M: Well, now I’m going to copy these pages and these charts and then I’ll finish my project!W: You’re not supposed to just copy t he book.M: Oh! I think Mr. Harper won’t know.W: He will know! He asked us to write a list of all the books we’d used. Remember?That’s not the point anyway…M: What is the point then?W: Well, the point is that you’re supposed to write your own projec t—you can’t copy someone else’s writing.M: Er…er…. Well, you’re right. Thank you for your reminding me of that.Text 10M: This is a talk by a London taxi driver."I've been a taxi driver for nearly ten years. Most London taxi drivers have their own taxis. It's a n ice jo b mo st of time. you me et a lot of p eop le. I a lways work at night, be cau se th ere is t o o m u c h t r a f f i c d u r i n g t h e d a y.I l i v e t w e n t y m i l e s o u t s i d e L o n d o n a n d I g o t o w o r k a t5:30 in the afternoon. I usually go home between 2 and 3 in the morning. S o m e v e r y s t r a n g et h i n g s h a p p e n e d l a t e a t n i g h t.T h e o t h e r d a y I w a s t a k i n g a w o m a n h o m e from a party. She had her little dog with her. When we got to her house, she found that she had lost her key. So I waited in the car with the dog while she climbed in through the windows. I waited and waited. After half an hour of ringing the bell I decided to find out what was going o n.I t i e d t h e d o g t o a t r e e a n d s t a r t e d t o c l i m b i n t h r o u g h t h e w i n d o w.T h e n e x t t h i n g I k n e w was that the police came. They thought I was a thief . Luckily the woman came downstairs. She must have gone to sleep and forgotten about me and the dog!"。

河北省保定市2014届高三上学期期末调研考试理科综合试卷(扫描版)

2014年1月调研考试高三生物参考答案及评分标准一、选择题每小题6分，共36分1-6 BDDBCD二、非选择题（一）必做题29.每空2分，共12分。

（1）温度 CO2的吸收量与释放量（或光照下CO2的吸收量、黑暗下CO2的释放量）（2）光合作用30-35℃（3）25℃能30．每空2分，共8分。

（1）AA X b使精子致死（2）自由组合831.共11分。

（1）色氨酸（1分）极性运输（1分）（2）伸长（1分）乙烯（1分）抑制（1分）（3）酶2的活性（2分）给予同等强度．．．．可见光照和一定强度紫外线照射（2分）氧化产物（2分）32．每空1分，共8分。

（1）样方法随机取样丙 J型生存环境适宜（或资源和空间充裕，气候适宜），没有天敌（2）20 = 衰退（二）选做题39．除说明外，每空2分，共15分。

（1）外植体（1分）有机物生长素和细胞分裂素（缺一不得分）高压蒸汽灭菌（2）高浓度蔗糖调低平板划线稀释涂布平板40. 除说明外，每空2分，共15分。

（1）基因文库中 PCR技术（2）限制酶I DNA连接酶（3）顶体透明带反应卵细胞膜反应（4）囊胚或桑椹胚（1分）参考答案14.A 15.A 16.B 17.A 18.C 19.ABC 20.AC 21.ABD22.（1）0.70 （2分）（2）0.20（2分）5.0（3分）23.（1）6 （2分）（3）R 1 （1分） A 1 （1分） V 1（1分）图（3分）电阻器选用限流式接法给2分24.解：(14分)（1）小物块由左端开始运动到停在斜面底端的过程02FL mgL μ-= ------------------------------① 2分解得：0.5μ= --------------------------- 1分（2）设小物块到达斜面底端时速度大小为V212FL mgL mV μ-= ------------------------------------② 1分解得：V=10m/s设向上加速度大小为a 11cos sin ma mg mg =+θμθ ----------------------------- -③1分解得：a 1=10m/s 2上滑的最大位移为s2a 1s=v 2 ----------------------- ④ 1分解得：s=5m ----------------------- 2分设小块返回底端的过程中加速度大小为a 2，2cos sin ma mg mg =-θμθ ------------------------------ -⑤ 1分代入数据解得a 2=2m/s 2设上滑用时t 1，下滑用时t 2，上滑：t 1= 1V a =1s -------------------------- ⑥ 1分下滑：s t a =22221 ------------------------------- ⑦ 1分求得 t 2------------------1分所以共用时间t= t 1+ t 2=（s 3.236s ≈ ------------------- 2分（用动能定理，牛顿运动定律，动量，其他方法正确均可）25.（18分）解(1) 粒子进入磁场后轨迹如图，由几何关系求得-----------------------------------① 1分设粒子在磁场中的速率为V ，rmv qvB 2= ------------------------------------②2分解得 mqBR v 3= ---------------------------- 1分第二种解法：如果R 按未知量算由几何知识知道，如图 O ’D=R ；设圆周运动半径为rCO ’ CD=R 2在电场中偏转时，设刚进磁场是速度为v则y v v =αsin …………（1分）又221y mv qU =…………（1分）且36'sin ==CO CD α ……（1分）所以 mqU v 3= ……（1分）再由r mv qvB 2=可以得到qmU B R 1=⑵设粒子从进入电场时速率为V 0，沿PQ 方向位移为XX= V 0t ------------------④1分 d=212at -------------------⑤1分在电场中ma dU q = ---------------------- ⑥1分从电场到磁场的运动过程2201122Uq mV mV =- ---------------------------③ 1分---------------------------2分第二种解法：由几何知识知道，水平位移设粒子从进入电场时速率为V 0，沿PQ 方向位移为XX= V 0t ------------------④1分由几何知识得 0cos v v =αat v =αsinma dU q = 33cos =α d x 6= 或者直接得出d d EF GF x 6tan 22====α⑶若只经过调整后磁场一次，粒子可能有两种情况会垂直打在MN 边界上：（I ）如图2示，无需经过圆外区域的磁场直接垂直打在MN 上,设调整后的磁感应强度大小为B 1，运动周期T 1，由几何关系求得在新磁场区的运动半径:r 1------------------⑦1分粒子在圆区中的运动规律1r =1mV qB -------------⑧ 1分联立①②⑧求得 B 1=3B ---------1分再由 T 1=12m qB π----------------------⑨1分设从进入此区域到打在MN 上用时t 1=1T 3=29m qB π----------1分（II ）如图3所示，粒子经过圆区域之后再经过圆外磁场区而垂直打在MN 上作图可知，考察几何关系可知，此种情况只须令圆区域内的磁感应强度为0即可使粒子垂直打在MN 上 ………………1分设这种情况总用时为t 2 则可得到t 2=2R V +23m qBπ=----------------------------------⑩2分3-3参考答案：（1）ABC （2）①Smg p p +=0＝1.05×105 Pa （3分） ②缓慢上升，所以气缸内压强不变（1分）V 1=SH 1 T 1=300K （1分）V 2=SH 2 T 2=310K （1分）由V 1V 2＝T 1T 2可得 H 2=51.7cm （2分）所以活塞位置升高了1.7cm （1分）3-4参考答案：（1）ACD（2）①由vT =λ得（2分）沿-x 方向 λ1=2m （1分）沿+x 方向 λ2=3m （1分）② 如图（画对一半得3分，全对得5分）3-5参考答案：（1）BCD（2）①6种光子（3分）②金属钠的逸出功为W 0W 0=h ν0=3.67×10-19J=2.29eV （2分）其中ΔE 21=10.2eV ，ΔE 31=12.09eV ，ΔE 41=12.75eV ，ΔE 42=2.55eV 都大于逸出功，所以一定能发生光电效应。

河北省保定市2014届高三4月第一次模拟考试理综物理试题(扫描版,答案word版)

2014年4月高三模拟考试理综物理参考答案（AB 卷相同）14．A 15．D 16．D 17．C 18．B 19．AD 20．ABD 21．ABD22. （7分） ①大（1分） ②否（1分） ③20.15 （1分）④做W-v 2 、W-v 3等函数图像继续探究尝试，逐步确定功与速度变化的关系（2分） ⑤B （2分）23. （8分）（1）红黑表笔短接（1分）（3）0~10V （1分）（4）不需要（1分）（5）OFF 或交流电压最大挡（1分）（6）()12122112R R U U E U R U R -=-（2分）()12122112U U R R r U R U R -=-（2分） 24. （13分）解：（1）小球从最低点做匀速圆周运动到最高点，设用时t 1：1Lt v π= ————————○1（1分）解得18t 15s = ———————— （1分）从最高点脱离到击中小物块做平抛运动，设用时t 2：在竖直方向： 22122L gt =————————○2（2分）解得245t s = ——————（1分）所以总时间1243t t t s =+= ——————（2分）（2）设小物块位移大小为x ，与小球的水平位移相等：2x vt = ————————○3 （2分）设小物块加速度大小为a ，则减速阶段与加速阶段位移大小相同，用时均为2t 212222x t t v a ⎛⎫=- ⎪⎝⎭————————○4（2分）解得210.8/a m s = ———————（2分）（用图像法，其他运动学公式相应给分）．．．．．．．．．．．．．．．．．．25. （19分）解：⑴由图乙求得弹簧弹力所做的功：84W 422µmgR mgR μ==弹 ————————○1（1分）设物块经过b 点时速率为Vb ，对物块从a 运动到b 的过程应用动能定理：2142122b mgR mgR mv μμ-= ————————○2（1分）设轨道对物块的支持力为F N ，对物块在b 点应用牛顿第二定律： 2b N mv F mg R-= ———————————○3（1分）联立○1○2○3F N =7mg ———————（1分）由牛顿第三定律可知，物块经过b 点时对圆弧轨道压力F N ′=F N =7mg ———（1分） ⑵经c 点后物块在半圆弧上做匀速圆周运动，可知电场力与重力对小物块合力为0：Eq=mg ———————————○4（1分）解得mg E q= —————（1分）过d 点后小物块在磁场中做匀速圆周运动，由物块竖直落回a 点可知，物块在磁场上方做竖直上抛运动，做出运动轨迹图，如图设物块经过c 点时速率为V C ，此速率即为物块在复合场中运动的速率物块在b 到c 机械能守恒：221122b c mv mgR mv =+ —————————————○5（1分）由○2○5解得cv = ————————————（1分）设物块在复合场中的运动半径为r ，由几何关系：1243R r R == —————————————○6（1分）离开d 点后，小物块在磁场中：2c mv Bqv r= ————————————○7（1分）联立○2○5○6○7解得B = ———————————（1分） ⑶从d 到a 的过程可分为三个阶段的时间：在磁场中：设周期为T ，2m T qBπ= ————————————○8（1分）运动时间为134t T = —————————○9解得13t = ————————（1分）在磁场上方：在重力场中三个短程运动，即两个上抛一个自由下落：23c v t g == —————————○10 （1分）在磁场上方返回a 点：磁场上方可到达的高度设为h ：h=242c v h R g== —————————○11（1分）设从最高到a 点总高度为H ，下落时间为t 32312442H R R R gt =++= —————————○12（1分）解得3t = ————————（1分）所以从d 到a 经历的总时间为：(12336t t t t π=++=++ ——————（1分）（第三问也可分成磁场时间，一个竖直上抛往返时间，后一个竖直上抛用位移时．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．间关系）．．．．33.(物理--选修3—3)（15分）（1）BCD（2）（9分）解：①由图可知，从状态A 到状态B 气体温度为T 1=T 0为等温变化过程，状态B 时气体压强为P 1=3 P 0，设体积为V 1，由玻意耳-马略特定律0011 PV PV = —————————○1（1分）解得 013V V = —————————（1分）34．【物理——选修3-4】（1）BCD（2）（9分）解：作树顶反射光线与石头折射光线的光路图如图所示，入射角、折射角分别为设α、β，设树高h1，人的视线高h2，河宽为d，由几何关系12h tan h tan dαα+=————○1（2分）代入数据解得4tan3α=所以4sin5α=————○2（1分）设河深H,又134OP tan43l h m mα⨯====由几何关系sinβ=○3（2分）由折射定律sinsinnαβ=———————○4（2分）代入数据解得165.33H m m=≈————（2分）35．【物理——选修3-5】（1）CDE（2）解：设A 、B 粘在一起的初速率为V 1，对A 、B 粘在一起后直至上升最大高度h 的过程机械能守恒()211222mgh m v =————○1（1分）解得1v =————（1分）设B 、C 分离时C 的速率为V 2，B 、C 分离至A 、B 刚粘在一起的过程动量守恒122mv mv = ————○2（1分）解得2v = ————（1分）轻弹簧由压缩至恰好弹开B 的速率为V 3，对B 、C 动量守恒23mv mv = ————○3（1分）所以32v v == ————（1分）设弹簧最初的弹性势能为E ，弹簧恰好弹开时，机械能守恒：221=22E mv ⎛⎫ ⎪⎝⎭————○4（1分）解得8E mgh = ————（2分）。

2014保定市期末调研试卷

保定市2013-2014学年度第一学期高三期末调研考试数学试题（理科）命题人：陈立军刘秀娟审定人：孙国营陈云平注意事项： 1. 本试卷分第I 卷（选择题）和第II 卷（非选择题）两部分.答卷前，考生务必将自己的姓名、准考证号填写在答题卡上.2. 回答第I 卷时,选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑.如需改动，用橡皮擦干净后，再选涂其他答案标号.写在本试卷上无效.3. 回答第II 卷时，将答案写在答题卡上,写在本试卷上无效. 4. 考试结束后，将答题卡交回. 第I 卷一、选择题:本大题共12小题，每小题5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21iz i=+，i 是虚数单位，则||z = A.12B.1D.3 2.在△ABC 中，“A=B ”是“tanA=tanB ”的A ．充分非必要条件B ．必要非充分条件C ．充分必要条件D ．既不充分也不必要条件 3．231()x x+的展开式的常数项为A ．1B ．3C ．D 4．在数列{}n a 中，已知111,21n n a a a +==+，则其通项公式为n a =A ．21n- B ．121n -+ C ．21n - D ．2(1)n -5．某程序框图如右图所示，若该程序运行后输出的值是95，则 A ．a= 4 B ．a= 5 C ．a= 6 D ．a= 7 6．已知函数()f x 对定义域R 内的任意x 都有()(4)f x f x =-，且当2x ≠时，其导数()f x '满足()2()xf x f x ''>，若24a <<，则A ．2(2)(3)(log )af f f a << B ．2(3)(log )(2)af f a f << C ．2(log )(3)(2)af a f f << D ．2(log )(2)(3)af a f f <<7．以正三角形ABC 的顶点A 、B 为焦点的双曲线恰好平分边AC 、BC ，则双曲线的离心率为A1 B ．2 C1 D．8．已知A 、B 、C 是直线l 上不同的三个点，点O 不在直线l 上，则使等式20x OA xOB BC ++=成立的实数x 的取值集合为A ．{1}-B ．φC ．{0}D ．{0,1}-9．已知x,y 满足约束条件1,,260,y y x x y ≥⎧⎪≤⎨⎪+-≥⎩，那么23z x y =+的最小值为A ．112 B ．8 C ．34D ．10 10．函数()sin()(0,||)2f x x πωϕωϕ=+><的最小正周期是π，若其图象向右平移3π个单位后得到的函数为奇函数，则函数f(x)的图象 A ．关于点(,0)12π对称 B ．关于直线12x π=对称C ．关于点5(,0)12π对称D ．关于直线512x π=对称 11．设△ABC 的内角A ，B ，C 所对的边分别为a，b ，c ，且,3C a b πλ=+=，若△ABC 面积的最大值为λ的值为A ．8B ．12C ．16D ．2112．如图，三棱柱OAD-EBC ，其中A ，B ，C ，D ，E 均在以O 为球心，半径为2的球面上，EF 为直径，侧面ABCD为边长等于2的正方形，则三棱柱OAD-EBC 的体积为 A． B ．C ．D ．第II 卷二、填空題:本大题共4小题,每小题5分.13．已知等差数列{}n a 前n项和为n S ，且3813a a +=，14．一个几何体的三视图如图所示，其中正视图是一个正三角形，则这个几何体的体积为 .15．若函数3()3f x x x =+对任意的[2,2]m ∈-,APD AMCB16．已知集合M={1,2,3,4,5,6}，集合A 、B 、C 为M 的非空子集，若,,x A y B z C ∀∈∈∈,x<y<z 恒成立，则称“A –B –C ”为集合M 的一个“子集串”，则集合M 的“子集串”共有个. 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．（本小题满分10分）已知函数2()cos cos f x x x x =- （1）求f(x)的最小正周期和单调递增区间；（2）当[0,]2x π∈时，求函数f(x)的最大值和最小值及相应的x 的值.18．（本小题满分12分）已知数列{}n a 的前n 项和为n S ，且22(*)n n S a n N =-∈. （1）求数列{}n a 的通项公式；（2）若n n b na =，求数列{}n b 的前n 项和n T .19．（本小题满分12分）如图，已知三棱锥A –PBC 中，AC ⊥BC ，AP ⊥PC ，M 为AB 的中点，D 为PB 的中点，且△PMB 为正三角形（1）求证：BC ⊥平面APC ；（2）若BC=3，AB=10，求二面角P –MC –B 的余弦值的绝对值.20．（本小题满分12分）近年来，我国的高铁技术发展迅速，铁道部门计划在A 、B 两城之间开通高速列车，假21．（本小题满分12分）已知椭圆C ：22221(0)x y a b a b+=>>中，:a b =，以原点为圆心，椭圆的长半轴为半径的圆与直线20x y +-=相切.（1）求椭圆C 的方程；（2）若过点M(2，0)的直线与椭圆C 相交于A ，B ，||3AB =，设P 为椭圆上一点，且满足OA OB tOP +=（O 为坐标原点），求实数t 的值.22．（本小题满分12分）已知函数()1xf x e x =--（e 为自然对数的底数，e=2.71828…）（1）判断函数()f x 的零点个数，并说明理由；（2）已知*n N ∈，且0()nn n A B f x dx n +=+⎰，n A 是等差数列{}n a 的前n 项和，nB 是首项为1e -的等比数列{}n b 的前n 项和，请求出数列{}n a ，{}n b 的通项公式；（3）若1{|()1}{|2}2x f x ax x x φ>-⋂≤≤=，求实数a 的取值范围.。

河北省保定市2014届高三第二次模拟考试理综试题 Word版含答案

保定市2014年高三第二次模拟考试理综生物试题1.多糖、蛋白质、核酸等生物大分子是由许多单体连接而成的多聚体。

下列有关单体与多聚体的叙述中，错误的是A.单体连接成多聚体都需要消耗ATPB.单体进入细胞的方式都是主动运输C.有的多聚体在细胞间的信息交流中发挥重要作用D.多聚体最终水解产物不一定是单体2.下列关于生物膜的叙述中，正确的是A.唾液淀粉酶合成分泌过程中内质网和高尔基体膜面积均减小B.正常细胞癌变后其细胞膜通透性降低C.细胞内的ATP都是在生物膜上合成的D.受精作用的完成与细胞膜结构特点有关3.果蝇的体色由黑色变为灰色是其细胞核中某基因发生了一个碱基对改变，导致所编码的蛋白质中一个氨基酸被替换，下列各项中也会随之发生改变的是A．该基因在染色体上的位置 B．tRNA的碱基排列顺序C．所编码蛋白质的肽键数目 D．该基因的基因频率4.下列关于实验的叙述中错误的是A.根据色素易于溶于有机溶剂的原理用层析法分离叶绿体色素B.利用同位素标记法研究光合作用中氧气和二氧化碳的变化C.利用差速离心法分离细胞中的各种细胞器D.利用样方法调查作物植株上蚜虫的密度5.右图是描述生命现象的示意图，以下相关叙述错误的是A.若甲代表种群，a为能量输入，则b、c可分别代表呼吸散失的热量和用于生长发育繁殖的能量B.若甲代表人体下丘脑体温调节中枢，a为寒冷刺激，则b、c可分别代表产生冷觉和骨骼肌战栗C.若甲代表人体B淋巴细胞，a为抗原刺激，则b，c可分别代表浆细胞和记忆细胞D.若甲代表棉铃虫种群，a为诱捕雄虫，则b，c可分别代表性别比例失调和种群密度降低6.甲乙两组小白鼠在不同温度下进行了实验，得到结果如右图。

下列分析不正确的是A.该实验的目的是探究温度对小白鼠耗氧量的影响B.甲组小白鼠可能是对照组C.乙组小白鼠可能被切除了下丘脑D.实验前的甲乙两组小鼠的生长状况应该良好且相同29．（14分）回答下列有关植物某些生理过程的问题。

河北省保定市2014届高三第二次模拟考试数学理试题(A卷) Word版含答案

从参加问卷调查的名务工人员中随机抽取两名的取法共有C 种，
这两名人员来自同一省份的取法共有C C C C .
（Ⅰ）从参加问卷调查的50名务工人员中随机抽取两名，求这两名来自同一个省份的概率；
（Ⅱ）在参加问卷调查的50名务工人员中，从来自四川、湖北两省的人员中随机抽取两名，用ξ表示抽得四川省务工人员的人数，求ξ的分布列和数学期望.
19．（本题满分12分）
已知ABC是边长为3的等边三角形，点D、E分别是边AB、AC上的点，且满足==.将ADE沿DE折起到1ADE的位置，并使得平面A1DE⊥平面BCED.
2．若（a∈R）是纯虚数，则||=
A． B．1C．D．2
3．函数 = 的最小正周期是
A．B．2C．D．4
4．已知平面向量,满足||=1，||=2，且（+）⊥，则，的夹角为
A．B．C．D．
5．已知随机变量ξ服从正态分布N(0，σ2)，P(ξ＞2)=0.023，则P(-2≤ξ≤2)=
A．0.997B．0.954 C．0.488D．0.477
21．（本小题满分12分）
设函数（自然对数的底数e=2.71828…）.
（Ⅰ）当＞0时，求函数的单调区间；
（Ⅱ）在（Ⅰ）中，若函数的最小值恒小于ek+1,求实数k的取值范围；
（Ⅲ）当＜0时，设＞0，＞0，且 ≠ ，试比较与的大小.
请考生在第22、23、24量题中任选一题作答，如果多做，则按所做的第一题计分，作答时请把答题卡上所选题目题号后的方框涂黑．
18．（本小题满分12分）
今年来，随着地方经济的发展，劳务输出大省四川、河南、湖北、安徽等地的部分劳务人员选择了回乡就业，因而使得沿海地区出现了一定程度的用工荒.今年春节过后，沿海某公司对来自上述四省的务工人员进行了统计（见下表）：

河北省保定市2014届高三第二次模拟考试语文试题(扫描版)

语文二模参考答案A卷1.B （原因缺失。

八股文存在的原因除去阅卷因素还有“微言大义”“文风气运”等理由。

）2.A （原文第三段中说八股盛行时“即使有人反对也没能动摇它的地位”，可见反对八股文的观点并非到了近代才产生。

）3.B（无中生有。

文中看不出八股进入科考之初就遭到反对。

）4.C（幸，指封建帝王到达某地。

）5.B（①是说韩世忠的缺点。

⑤是说宋兵败，韩世忠也退兵。

⑥说的是韩世忠的夫人梁红玉。

）6.A（韩世忠力斩西夏监军驸马兀移是蒿平岭一役，不是在银州。

）7. （1）钦宗听说这件事，就在便殿召见韩世忠，询问梁方平违反军纪的情况，韩世忠逐条上奏，非常详细。

（召对，召见，1分；失律，违反军纪，1分；条奏，逐条上奏，1分；悉，详细，全面，1分；句意通顺1分。

）（2）韩世忠回到汴京，调查全军先撤退的军士，（将这些人）全部斩首，韩世忠身边的将士都很害怕。

丁进从此与韩世忠有了嫌隙，不久丁进因为叛降被杀。

（诘，追察，追究，1分；左右，身边的军士，1分；隙，嫌怨，嫌隙，1分；寻，不久，1分；句意通顺1分）全文翻译：韩世忠，字良辰，是延安人。

身材高大秀美，目光如电。

早年时候勇猛非常，能骑生马驹子。

家中贫穷没有产业，特别喜欢喝酒且意气用事，不肯受约束。

十八岁的时候，凭借勇敢在乡州应募，隶属赤籍，能拉开强弓，飞驰射箭，神勇为三军之首。

崇宁四年，西夏发生动乱，郡府调兵捍卫守御，韩世忠在派遣的士兵之中。

到了银州，西夏人环绕城池固守，韩世忠攻破关口杀死敌将，把他的头颅扔到女墙之外，各部军队乘机攻入，西夏人大败。

接着西夏人派重兵驻扎在蒿平岭，韩世忠率领精锐部队一番苦战，西夏人撤兵离开。

不久西夏人又出现在小路，世忠独自率领敢死的士兵殊死搏斗，敌人稍微退却，（韩世忠）看到一名骑士很是锐敏强悍，问俘虏那是谁，俘虏说：“是监军驸马兀移。

”韩世忠就策马飞奔斩杀了他，敌人大败。

钦宗登上皇位，韩世忠跟从梁方平驻守浚州。

金人逼近边境，梁方平防备不严密，金人逼近就逃跑了，几万朝廷的军队都溃败了。

2014届河北省保定市高三第一次模拟考试文科数学A卷(含答案解析)扫描版

2014年保定市第一次高考模拟考试文科数学 (A 卷) 答案一.选择题：A 卷： BAD A D CADBC C AB 卷： BA A D D CDABC C A 二.填空题：13. 15； 14. 8πr 3； 15.； 16.15 12. 解析：由已知得()(),(1)(1),f x f x f x f x -=--=--(2012)(2014)(2.5)(1.5)(2012)(2014)( 2.5)( 1.5)(2012)(20131)+( 1.51)(10.5)(2012)(20131)(1.51)(10.5)2(0.5)2(0.5)18f f f f f f f f f f f f f f f f f f ∴+++=+-+-+-=+----+--=------=-=--=-三.解答题：17. （本小题满分12分）解：（1）设数列{n a }的公比为q ，因为12a =，则a 2=2q ，a 3=2q 2………………2分由a 2+a 3=24得q+q 2=12所以q=3或-4（舍去）……………………4分故其通项公式为123n n a -=⋅ ……………………………………6分（2）由（1）得，112n a +=13+1n - ………………………………………8分所以，其前n 项和2111(133+3)322n n n S n n -=++++=+- …… ……………12分18．（本小题满分12分）解：（1）频率分布直方图如右...........3分所求的平均值为0.01×2×1+0.015×2×3+ 0.2×2×5+0.15×2×7+0.125×2×9=6.46 ...................5分（2）男居民幸福的概率为5.0500125125=+ 女居民幸福的概率为6.0500125175=+ 故一对夫妻都幸福的概率为： 0.5×0.6=0.3 ……………………8分记这3对夫妻分别为甲、乙、丙，则其中至少有两对夫妻感到幸福的情况可表示为：仅甲乙幸福、仅甲丙幸福、仅乙丙幸福、甲乙丙都幸福，故所求的概率为2330.30.7+0.3=0.216⨯⨯ ………………………………………12分19.（本小题满分12分）（1）解：因为AB ⊥侧面11BB C C ，且AB ∥A 1B 1,所以四棱锥的高h=AB=1 ………2分又S 底面=1112sin 2CB CC C CB ⋅⋅⋅∠=……………………4分所以，四棱锥的体积为13 ……………………6分（2）证明：因为AB ⊥侧面11BB C C ,1BC ⊂侧面11BB C C ，故1AB BC ⊥, 在1BCC ∆中, 1111,2,,3BC CC BB BCC π===∠=由余弦定理得：2222211112cos 12212cos33BC BC CC BC CC BCC π=+-⋅⋅∠=+-⨯⨯⨯=，所以1BC =，……………………9分故22211BC BC CC +=,所以1BC BC ⊥,而1,BC AB B C B =⊥∴ 平面ABC .……12分20. （本小题满分12分）解：⑴函数f (x )在()2,+∞上存在单调递增区间，即f ′(x )＞0在()2,+∞上有解因为f ′(x )＝－x 2＋x ＋2a ，所以只需f ′(2)＞0即可，……………………2分所以由'(2)-4+22=2-20f a a =+>，解得1a > ……………………3分1()2a f x ∴>+∞当时，在（，）上存在单调递增区间。

河北省保定市2014届高三第二次模拟考试英语试题(扫描版)

B卷1---5 AABBC 6---10 ACACB 11---15 CABAB 16---20 BCBAB 21---25 DBAAB 26---30 BCDAD 31---35 BDCAB 36---40 CGBEF 41---45 CBAAD 46---50 BBDAC 51---55 BDCBC 56---60 DDCAA61.requirements 62. reasonable 63. can 64. If 65. will be expected/ are expected66. shared 67. living 68. what 69. within 70. lessThe other day my brother and I went to the cinema by bikes. My brother rode with mebikesit on the seat behind. As we came to ^first crossroads a young man and a girl walked upsitting theand stopped me. “We’ve got you at last.” They said happy. And we didn't knowus happily Butthem. At no time the young man gave us his explanation. He pointed to the policeman Inand said, “It is he ^stopped us about half an hour ago and made us to catch the nextwhooffender. So come on, stand here. Hope you don't have to wait as long as we do.didGood luck.”M Excuse me, but could you tell me when the next train for London leaves?W It leaves every hour, so the next one is in fifteen minutes—at 920.(Text 2)W Hurry up. It’s 803 now. The lecture will begin soon.M Don’t worry. We still have 17 minutes to go.(Text 3)W I’ve always wondered why many peo ple like keeping pets.M There is nothing surprising about that, because pets, especially dogs and cats, are just like our friends.W I’d prefer to be with human friends.(Text 4)W Fine day, isn’t it?M Yeah, how about going hiking with me?W It’s my plea sure. But I like swimming more than hiking or climbing or something like that.(Text 5)W John, I think you must be looking forward to going to Paris for further study.M Well, I ought to be, but I am afraid I can’t do well because of my poor French.(Text 6)M Excuse me.W Yes, can I help you?M Yeah, uh… I want to take an English course, and I need some information.W OK.M I think English is too difficult to learn.W Don’t be upset. English is widely used in the world. More than 375 million people learn English as their mother language, and more than 750 million people learn English as a foreign language.M I’m getting discouraged now.W A friend of mine will be arriving from America in two weeks and it would be nice to talk with him about English.M That would be great. I’m looking forward to that. Thank you very much.(Text 7)M What’s the matter?W It’s just life. It’s all right for you. You’ll leave the house in five minutes. I’ll be here all day. You won’t come back till seven o’clock.M One of us must go to work, dear.W Yes, but your day is interesting. My day is the same every day.M My work isn’t always interesting.W I know, but you travel around, you meet different people and you do different things. Who will I meet today? What will I do? Er? I’l l wash up, feed the baby, clean the house, bathe the baby, take the dog for a walk…M But…but…W Then I’ll go to supermarket, prepare dinner, meet you at the station, have dinner, wash upM But…W Then I’ll feed the baby again, put the baby to bed… What a life!(Text 8)M Good afternoon. I believe that this house is for sale.W That’s right.M May I have a look at it, please?W Yes, of course, come in.M How long have you lived here?W 20 years.M Then why do you want to sell it?W Because I have just stopped work, and I want to buy a small one in the country.M How much does this house cost?W $ 6,850.M That’s a lot of money.W It’s worth every penny of it.M Well, I like this house, but I can’t decide yet, my wife must see it first.W Well, women always have the last word.(Text 9)W Could you tell me something about yourself?M What do you want to know?W The usual—you know—something about your background and experience, etc.M Well, I was born in Portland and went to school there, right up through college. My father is a doctor, and my mother is a lawyer.W So you come from a professional family.M That’s right. One of my sisters is an engineer and the other one teaches at a university.W What made you decide to get into computers?M Oh, nothing in particular. I just like it.W Can you tell me your experience? How long have you been working with computers?M More than five years now. Right after I got my doctor’s degree, I think.W It sounds quite impressive. Please send your personal history to m e and I’ll show it to the boss. We’ll get back to you in a week.M Thanks for your time.(Text 10)M China has a growing love affair with the car. This is clear at Beijing Asian Games Village Automobile Exchange, where more and more people come to look and, increasingly, to buy. Alice Wu is an editor at a Chinese Internet magazine. She takes the subway to work, but she is certain she can save much time if she drives herself. Wu says it takes her 3 hours to get to and from work now. If she had a car, she says, the same trip would only take her 2 hours.The Asian Games Village Automobile Exchange is the biggest car seller in Beijing. General manager Guo Yong says the business sells more than 2,000 cars each week.Guo says it is much easier for Chinese consumers to buy a car now. In the past, it would take them several years to earn enough money to buy a new car. Now, he says, many people only need to save for one year.Also, the appearance of less expensive China-made brands like Cherry and BYD means more Chinese can afford cars.。

[VIP专享]河北省保定市2014届高三第一次模拟(4月)考试数学(理)试题(A卷)(扫描版,含答案)

2014年保定市第一次高考模拟考试理科数学(A卷) 答案一.选择题：A卷：BA DA D C A D B C CA B卷：BA AD D CD AB C CA13. ；； 16.156解析：，则；令.两式相减得解析：由已知得注意到三角形腰与底可以置换，所以可取的数码组共有组。

但当大数满足。

此时，不能构成三角形的数码是填剩余两个位置，故有种情况。

故.＝－，得＝＝ (3)＝－×＋×＝．分）男居民幸福的概率为女居民幸福的概率为于是 (9)………12分19.（本小题满分12分）解：（1）因为侧面,侧面，故,在中, 由余弦定理得：，所以， ……3 分故,所以,而平面.……5分（2）由（1）可知，两两垂直.以为原点，所在直线为轴建立空间直角坐标系. 则，, . ……7分所以,所以,则.设平面的法向量为，则由,得,即，令，则是平面的一个法向量.……10分侧面,是平面的一个法向量，.两边平方并化简得，所以=1或（舍去）.…………12分20. （本小题满分12分）解：（1）设A、B、M的坐标分别为(x0，0)、(0，y0)、(x，y)，则x Error!＋y Error!＝(m＋1) 2，①1分由Error!＝m Error!，得(x－x0，y)＝m(－x，y0－y)，∴Error!∴Error!Error!② ………………2分将②代入①，得(m＋1)2x2＋(Error!)2y2＝(m＋1)2，化简即得点M的轨迹Γ的方程为x2＋Error!＝1（m＞0）．…………4分当0＜m＜1时，轨迹Γ是焦点在x轴上的椭圆；当m＝1时，轨迹Γ是以原点为圆心，半径为1的圆；当m＞1时，轨迹Γ是焦点在y轴上的椭圆． ……………6分（2）依题意，设直线CD的方程为x＝ty＋Error!，由Error!Error!Error!消去x并化简整理，得(m2t2＋1)y2＋m2ty－Error!m2＝0，△＝m4t2＋3m2(m2t2＋1)＞0，设C(x1，y1)，D(x2，y2)，则y1＋y2＝－Error!，y1y2＝－Error!．③ ……………………9分设定点P(a，0)，若，则即直线PC、PD的倾斜角互补，∴k PC＋k PD＝0， …………………………10分即Error!＋Error!＝0，∵x1＝ty1＋Error!，x2＝ty2＋Error!，∴Error!Error!＋Error!Error!＝0，化简，得4ty1y2＋(1－2a)( y1＋y2)＝0．④ (11)分将③代入④，得Error!+Error!＝0，即2m2t(2－a)＝0，∵m＞0，∴t(2－a)＝0，∵上式对∀t∈R都成立，∴a＝2．故定点P的坐标为(2，0). ……………………12分21. （本小题满分12分）解：（1）∵是函数的两个零点，∴，。

保定市2014年高考模拟试题

保定市2014年高考模拟英语试题参考答案(A 卷)1---5 CABCB 6---10 BACAB 11---15 BCBAC 16---20 CCAAB 21---25 DCABC 26---30 BDBAC 31---35 DACBB 36---40 BEFDG 41---45 CBDAB 46---50 ABACC 51---55 BDCDA 56---60 CADACB卷1---5 AABCC 6---10 BCCAA 11---15 BCBAC 16---20 BCACB 21---25 CCABD 26---30 BDBAC 31---35 BACDB 36---40 BEFDG 41---45 CBDAB 46---50 ABACC 51---55 BDCDA 56---60 CADAC61.what 62. without 63. but 64. escape/shelter 65. had been 66. burned/burnt67. Obviously 68. to stop 69. may/might 70. itLast summer, I was going to visit a friend in Hangzhou. I went to the station tobuy^ ticket. After get it, I turned back^ pick up my bag from the floor. To my shock, Ia/ my getting tofound it had gone. Luckily I had all my money in my pocket, but the only clothes I hadwas(or: had)was those I was wearing on. I felt quite uneasy. When I finally arrived at my friend shewere friend’slent me several change of clothes. I was very happy that I can wear clean butchanges could andbeautiful clothes at last.Dear Monica,I’m very glad to hear from you. I’ve learned that you hope to stay in Beijin g after graduation. Personally speaking. I’d like you to stay in Beijing. For one thing, Beijing is an international metropolis where talented people are badly needed and you can demonstrate your ability. For another, Beijingers are warm-hearted and hospitable to foreign friends. Besides, the local government will offer preferential policy for the overseas graduates. If you want to look for the relevant information you can su rf www. Beijing. . I think it’s a good choice for you to take Beijing as your starting point.I’m presenting all my wishes to you that you will have a good job and beautiful life in Beijing.Yours,Li HuaText 1M: If Professor King gave us one more week, we would be able to complete the task.W: Hmm, that would make a big difference.Text 2W：Sorry，I’m late for my flight and I’m in a hurry．Where is Gate A18?M：Go downstairs and turn left．Walk straight and you’ll see it．Text 3M: It drives me mad when people use their cell phones at the wheel.W: What happened?M: I nearly had an accident because the woman was talking on her cell phone while driving and didn't see the traffic lights turn red. She nearly killed me!Text 4M: Sarah, I’m prepared to run for class monitor, and I'm wondering if I, er...if I can count on your support.W: Oh, You should have asked me earlier. I've already promised Linda she will have my support.Text 5W: I’m leaving for Seattle next week. I don’t know what the weather is like there.M: Well, it’s usually warm at this time of year. But last week it was cool. So don’t forget to take some warm clothes with you.Text 6W: I’d like to book a few seats for “ Gone with the Wind”, please.M: Yes, Madam. Downstairs or upstairs? How many?W: How much is one ticket for Downstairs? And how much for upstairs?M: ＄6.5 for downstairs; 4.5＄for upstairs .W: Well, to save my living expenses, I want three tickets for upstairs this evening.M: Alright.Text 7W：Can’t you do something about the service in this hotel，manager?M：I'm sorry madam. What’s the problem exactly?W：I ordered my breakfast from the room service at least half an hour ago but it still hasn’t come．M：I see．I'm really sorry about that．You should have received your breakfast no later than five minutes after you’d ordered it．W：That’s what I thought．M：No problem. Maybe they are short of people in the kitchen．But I'll look into this．And I'll make sure that the breakfast is sent to your room right away．Text 8M：Betty, I’ve heard that you are working as an AHT in a pet hospital after graduation. Is that so?W：Yes.M: B ut I don’t know what AHT means?W: AHT stands for animal health technician．M: What do you usually do at work?W：I run blood ,give shots and prepare medicine．I also cut nails，clean teeth，give bath and clean the cages．We help keep the clinic running smoothly.M：Indeed，you have so much to do．Doctor Blake told me that he couldn’t have done so much without you．Text 9M: Hey, Jessica, there is a new fun test in the paper. I love to fill these things out.W: What’s this one about?M: It’s about health.W: OK. Re ad it to me. I’ll keep score.M: OK. No. 1: Do you smoke more than ten cigarettes a day?W: That’s easy. I gave up smoking three years ago.M: Right. You know, I should have given it up too. OK. No. 2: Do you have a check-up at your doctor’s office at least once a year?W: Yeah, the company makes us go to the doctor every year. How about you?M: Well, I went to the doctor...let me see...about three years ago.W: You should go more often.M: Well, let's move on to No. 7: Do you work more than ten hours a day?W: No, but you’ ve been working a lot lately.M: I' m really tired. I should work a lot less. But we’ve been busy though.W: You really should slow down.M: It’s not that easy. Last question: Do you worry a lot in your life?W: Worry a lot? Yeah. I guess I’d have to say yes. I should rest more.M: I definitely should rest more. You know what? It' s surprising I' m not dead already.Text 10M: I can say that this China trip is one of the best vacations I have taken in a long time. All the arrangements Travel China Guide made went smoothly. The hotels are great. The food was excellent. And the local people were very friendly. But what made this China Tour so pleasant and comfortable was the service the guides provided. They were caring and considerate. All spoke good English. I particularly enjoy the conversations I had with the guides in Shanghai and Guilin. My first guide was very good and helpful. She took pains to explain the history of Beijing in great detail.If I have one request, it is that I would have enjoyed having my meals with the guides and the drivers rather than eat alone. I really want to have the chance to learn more about the people of China.。

【物理】河北省保定市2014届高三第二次模拟考试

2014年保定市高中毕业班第二次模拟考试理科综合能力测试物理部分参考答案（B 卷）123.（9分）(1)（2分）(2)电阻箱的读数R 0 (1分) 仍为I 0 (2分) 电阻箱的读数R (1分)000808080R RR R R R +- (3分)24.（14分）解：（1）设棒到达MN 时的速度为V ，物块下落的高度为h=x PQ -x MN =2.5m ，系统由静止释放至棒到达MN 过程机械能守恒： 221122mgh mv mv =+ ------------------------○1 1分棒从静止出发做匀变速运动直至进入磁场用时t 1 ，由运动学公式：12vh t =------------------------②1分由○1○2解得t 1=1s ，由图乙可知此时磁感应强度B=2T ，在MN 位置进入磁场时感应电动势为E ，由法拉第电磁感应定律： E BLv = -----------------------③2分此时回路中的电流强度为I ： EI R=----------------------○41分棒进入磁场时安培力为F MN ： MN F BIL = -----------------------⑤1分联立①②③④⑤解得F MN =10N -------------------------------1分（2）进入磁场时对于物块和棒组成的系统MN F mg =所以棒在磁场中做匀速直线运动 -------------------------------1分设在磁场中的运动时间为t 2，由运动学公式： 2MN x vt = -------------⑥1分解得t 2=3s ，棒运动4s 被锁定，0~4s 电路中产生的焦耳热Q 1：212Q I Rt = ------------------------⑦1分锁定后，由图乙1/BT s t∆=∆，磁场的面积S=Lx MN =7.5m 2 ，设4s~6s 电动势为E ′，由法拉第电磁感应定律： E BS t∆'=∆ ------------------------⑧2分 4s~6s 电路中产生的热量Q 2： 223E Q t R'= ------------------------⑨1分所以0~6s 产生的焦耳热：12150225375Q Q Q J J J =+=+=-----------1分 25.（18分）解：（1）设A 球在底端时速度为V ，从释放到到达最低位置的过程中，A 、B 球组成的系统机械能守恒，重力势能减少量等于系统的动能增加量：221122A B A B m gl m gl m v m v -=+ ------------------①（2分）解得：v =（1分）设在此过程中杆对B 球做功W ，对B 球在此过称中应用动能定理：212B B W m gl m v -=------------------②（2分）由○1○2解得：247W mgl = ------------------（1分）（2）设OA 杆转过α角时A 球获得速度V ′，B 球速度大小也为V ′，A 、B 球系统机械能守恒，由机械能守恒定律：()2211sin 1cos 22A B A B m gl m gl m v m v αα--='+'------------------③（2分）代入数据整理得：v '-----------------（2分）其中3tan 4β=，37β=，53α=时V ′有最大值 ----------------（1分）所以A 球由开始位置转过53α=时有最大速度：V m '=（2分）（3）作出A 球刚接触细线的状态图，如图示。

2014届河北省保定市高三第一次模拟考试数学(理)A卷及答案

河北保定2014年高三第一次模拟考试理科数学试题（A卷）一、选择題:本大題共12小題，每小題5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. 已知全集U={2，3，4，5},M={3，4，5},N={2，4，5},则A. M ∩N={4}B. M ∪N=UC. (C U N)∪M=UD.(C U M)∩N=N2. 如图，在复平面内，复数z 1, z 2对应的向量分别是→OA ,→OB ,则| z 1+z 2|= A. 2 B. 3 C. 2 2 D. 3 33. 已知向量 →a =(1,2), →b =(-1,0), 若(→a +m →b )⊥→a , 则实数m 等于A. -5B. 52 C .0 D. 54. 设点A 是半径为1的圆周上的定点，P 是圆周上的动点，则弦PA ＜1的概率是A. 13B. 23C. 16D. 125. 若实数x,y 满足不等式组⎩⎪⎨⎪⎧y ≤52x －y ＋3≤0x ＋y －1≥0，则z=|x |+2y 的最大值是A. 10B. 11C. 13D. 146. 执行右边的程序框图，输入1231,2,3,2,x x x x ==== 则输出的数等于A. 2B. 3C. 23 D. 127.设S n 为等比数列{}n a 的前n 项和，若11,a =且2342,,2a S a +成等差数列，则数列2{}n a 的前5项项和A. 341B. 10003C. 1023D. 10248.已知点A(-3，0),B(0，3),若点P 在圆2220x y x +-= 上运动，则∆PAB 面积的最小值为A. 6B. 6 2C. 6+322D. 6-3229.一个几何体的三视图如图所示，则该几何体的体积为A. 55B. 54C. 75+410D. 55+21010.设函数()f x 的定义域为R , 00(0)x x ≠是()f x 的极大值点，以下结论一定正确的是 A. 0,()()x R f x f x ∀∈≤ B. 0x -是()f x -的极小值点 C. 0x -是-()f x -的极小值点 D. 0x -是()f x -的极小值点 11.对任意实数x ，都有11212311(1)(3)(3)(x a a x ax a x -=+-+-+-+，则1357119a a a a a a ++++=A. 113221220+B. 113221220-C. 113441440- D.113441440+12. 已知函数()f x 的定义域为R,且满足：()f x 是偶函数，(1)f x -是奇函数，若(0.5)9f -=，则(2012)(2014)(2.5)(1.5)f f f f +++等于A. -18B. -9C.0D.9 二、填空题:本大題共4小題,每小題5分，共20分.13.如图，直角∆POB=90°，以O 为圆心、OB 为半径作圆弧交OP 于A 点. 若圆弧AB 等分∆POB的面积，且∠AOB=α弧度，则α= ______15.设F 1，F 2分别为双曲线C:22221(0,0)x y a b a b-=>>的左、右焦点，A 为双曲线的左顶点，以F 1F 2为直径的圆交双曲线某条渐近线于M 、N 两点，若∠MAN=135°，则该双曲线的离心率为16.设三位数n abc =，若以,,a b c 为三条边的长可以构成一个等腰（不含等边）三角形，则这样的三位数n 有______个.三.解答題:本大題共6个小題，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12分）在∆ABC 中，角A 、B 、C 依次成等差数列，其对边依次分别为,,a b c . (I)若cos(B+C)=-63，求cosC 的值； (II)若a ＝3，→AC ·→CB ＝3，求b .18. (本小题满分12分）（Ⅰ）在右图中绘出频率分布直方图，并估算该地区居民幸福感指数的平均值；（Ⅱ）如果居民幸福感指数不小于6，则认为其幸福．为了进一步了解居民的幸福满意度，调查组又在该地区随机抽取4对夫妻进行调查，用X 表示他们之中幸福夫妻（夫妻二人都感到幸福）的对数，求X 的分布列及期望（以样本的频率作为总体的概率）．19. (本小题满分12分）如图，在三棱柱ABC-A 1B 1C 1中，已知AB ⊥侧面11BB C C ，AB=BC=1，BB 1=2，∠BCC 1=π3.(1)求证：C 1B ⊥平面ABC ；（2）设→CE =λ1CC (0≤λ≤1)，且平面AB 1E 与BB 1E 所成的锐二面角的大小为30°，试求λ的值.20. (本小题满分12分）如图，长为m+1(m ＞0)的线段AB 的两个端点A 和B 分别在x 轴和y 轴上滑动，点M 是线段AB 上的一点，且→AM ＝m →MB .（1）求点M 的轨迹Γ的方程，并判断轨迹Γ为何种圆锥曲线；（2）设过点Q(12 ,0)且斜率不为0的直线交轨迹Γ于C ，D 两点.设点P 在x 轴上，且恒满足||||PQC PQDS PC SPD =，试求点P 的坐标.21. (本小题满分12分）已知函数22()32(0)f x ax bx a a =+->，设1212,()x x x x ≠为函数()f x 的两个零点.(1)若2,121=-=x x ，求函数()f x 的单调区间； (2)若12||||2x x +=，求实数b 的最大值；(3)若21x x x <<，且a x =2，1()()()g x f x a x x =-- ，求证：2|()|31.43g x a a a --≤.请从第22、23、24三题中任选一題作答，并用2B 铅笔将答题卡上所选题目对应的题号右侧方框涂黑，按所涂题号进行评分；多涂、多答，按所涂的首题进行评分；不涂，按本选考题的首题进行评分.22.(本小题满分10分)选修4-1 :几何证明选讲如图，∆ABC 是⊙O 的内接三角形，PA 是⊙O 的切线，切点为A ，PB 交AC 于点E ，交⊙O 于点D ，PA=PE,∠ABC=45°，PD=1，DB=8.(1)求∆ABP 的面积；(2)求弦AC 的长.23. (本小题满分10分)选修4-4:坐标系与参数方程已知极坐标系与直角坐标系长度单位相同，且以原点O 为极点， x 轴的非负半轴为极轴. 设直线C 1： 1cos ,sin ,x t y t αα=+⎧⎨=⎩(t 为参数)，曲线C 2：ρ=1.(I) 当3πα=时，求曲线C 1的极坐标方程及极径(0)ρρ>的最小值；(II)求曲线C 1与C 2两交点的直角坐标（用α表示）.24.(本小题满分10分)选修4-5:不等式选讲已知函数()2f x x a x a =-+-+. (1)当2a =时,求()f x ＞4的解集；(2)若关于x 的不等式()40f x x --<在(1,2)x ∈上恒成立，求实数a 的取值范围.2014年保定市第一次高考模拟考试理科数学 (A 卷) 答案一.选择题：A 卷： BAD A D CADBC C A B 卷： BA A D D CDABC C A 二.填空题：13.12；14. 8πr 3； 15.16.156 11. 解析：1111111192119110(1)[(3)2]2(3),2220k k k k x x C x a C -=-=-+=-∴==∑在已知等式中，令x=2，则01231011a a a a a a =-+-++-……；令x=4，则11012310113a a a a a a =++++++…….两式相减得11135791131+=2a a a a a a -++++则 111113571113579119931++34412=11220440a a a a a a a a a a a a a -+++++++--=-=则12. 解析：由已知得()(),(1)(1),f x f x f x f x -=--=--(2012)(2014)(2.5)(1.5)(2012)(2014)( 2.5)( 1.5)(2012)(20131)+( 1.51)(10.5)(2012)(20131)(1.51)(10.5)2(0.5)2(0.5)18f f f f f f f f f f f f f f f f f f ∴+++=+-+-+-=+----+--=------=-=--=-16.解析：若构成等腰（非等边）三角形，由于三位数中只有2个不同数码。

高中英语真题：学2014届高三高考押题试卷试题.doc

高中英语真题：学2014届高三高考押题试卷试题.doc一、阅读理解(共6题)1. Three years ago，Christmas Johncox，51，thought she had reached the point in life where she could relax a little．“My oldest da ughter had just finished college and my youngest was almost there，"she says．But．Chris，who lives in Rochester，NY，soon found that another member of her family needed her time and attention her brother，Rick．A year and a half older than Chris，Richard Stevens has cerebral palsy(脑瘫)：Though he lived on his own for most of his life，a series of accidents and surgeries，along with aging muscles，have left him unable to walk or feed himself．That's why most evenings alter work，Chris heads to the nursing home where Rick lives．Rick says．‘‘She does so much for me，and I really love her? for it．"Love is what keeps Chris goin9．In addition to caring for Rick，shetravels to Georgia frequently to look in on their 74一year—old mother，who has severe arthritis(关节炎)and other issues．She also works full time and gets up early to be with her husband．Marvin，and daughters，who live at home．“I have a lot on my plate，"says Chris．‘‘But I don't feel that it's a burden．It's just my new reality．Of course，Chris is not immune(不受影响的)to stress and burnout．She's able to keep it together because of three things：“I have a very understanding boss，and with technology，I can work from home or from Georgia from my computer．And then there’s my family．They understand that I have to do what I have to do．Marvin does most of the housework，takes care of the pets—and is Chris's chief spirit lifter．Happily，things are starting to normalize，and Chris and Marvin were even able to get away for a week．“Even if I’m not t here，Rick knows how much I love him，"says Chris．2 1．Chris believed that she could relax a little three years ago because________．A．Rick recovered from severe brain injuryB．she didn't need to look after anyoneC．her children began to live on her ownD．all her family members finished college22.From the text we can learn severe brain that Rick________A．is younger than ChrisB.．works in a nurse homeC．1ives with his motherD．has lost the ability to walk23.By saying“I have a lot on my plate"．’Chris means that______A．she has a big family to supportB．she has to cook plenty of foodC．she has lots of things to deal withD．she always eats a lot every time24．What would be the best title for the text?A．He knows I love himB．Things to keep it togetherC．Far away from stress and burdenD．Caring for family members in need2. Ballet as a charming dance form has fascinated audiences for many years．It is a form of dance that combines beauty and grace to tell a story in‘a dance form．Generally performed in theatres，ballet has always been a favored dream of many little girls．While ballet dancers need to work very hard for many years to perform in a professional ballet company，this does not discourage the gifts．Many people think that ballet originated in France，due to the ballet steps that all have French names．However，ballet can be traced back to Italy during the Renaissance period of the l 400 s．矾ile this was really just a pioneer to the classical ballet，the dances performed in Italy during this time led to the further development of ballet in France．The first ballet company arose in France and was called The Queen's Ballet Company．In the l 800 s the romantic style of ballet appeared，thanks in part to the ballet La Sylphide．La Sylphide made much use of the toe dancing technique,and brought about many changes to ballet．A1l romantic ballets focused on women and this encouraged women to take on increasingly to become ballerinas．While ballet prospered in other nations，it started declining in France．The decline could．be be．cause ballet was seen as being very other worldly with mythical(神话的)steps．The shift from mythical steps to more reasonable style that could beco-related to human movements came about in the ninetieth century．This was because of the many different styles of dance that were becoming increasingly popular．1he change that started in the twentieth century continues to transform ballet even today where it mixes different styles of dance．Some ballets today have even gone so far as to combine another style of dance into the ballet．In l 944 a ballet was introduced called Fancy Free that use Jazz dance with the ballet steps to create a revolutionary ballet，and it was well received．With time，ballet has developed and changed in many forms． A.ballet by professionals continues to charm audiences despite the tact that most of US cannot even dream of performing most of the steps and moves of a ballet dancer．25·It can be inferred from the first graph that______A．ballet dancers are all beautiful little girlB.·it’s not easy to be a。

河北省保定市2014届高三期末调研测试语文试题

河北保定市2014届高三期末调研测试语文试题第Ⅰ卷阅读题甲必考题一、现代文阅读（9分，每小题3分）阅读下面的文字，完成1-3题。

霾也叫雾霾，指空气中的灰尘、硫酸、硝酸、有机碳氢化合物等粒子使大气混浊、视野模糊，并导致能见度恶化的现象，如果水平能见度小于10千米，我们将这种非水成物组成的气溶胶系统造成的视程障碍称为霾。

霾与雾、云不一样，与晴空区之间没有明显的边界，霾粒子的分布比较均匀，而且霾粒子比较小，从0．001微米到10微米，平均直径大约1-2微米，肉眼看不到空中飘浮的颗粒物。

由于灰尘、硫酸、硝酸等粒子组成的霾，其散射波长较长的光比较多，因而霾看起来呈黄色或橙灰色，所以也称“灰霾”；雾的颜色则是乳白色或青白色。

雾和霾都是视障碍物。

但雾与霾的形成原因和条件却有很大的差别。

雾是水蒸气液化成小水滴或凝华成小冰晶浮游在空中形成的，形成雾需具备较高的水汽饱和度和较低的温度。

雾的空气相对湿度常达100%或接近100%。

出现霾时空气则相对干燥。

空气相对湿度通常在80%以下。

雾与随着空气湿度的日变化而出现早晚较常见或加浓、白天相对减轻甚至消失的现象。

霾的日变化一般不明显，当空气团较稳定时，持续出现时间会较长，有时可持续10天以上。

大雾天气多集中于10-12月份；而霾天气在各月差异相对较小，各月均可能有较多霾天气出现。

由于阴霾、轻雾、沙尘暴、扬沙、浮沉、烟雾等天气现象，都是受浮游在空中的大量极微细的尘粒或烟粒等影响，有效水平能见度小于10千米。

有时即使气象专业人员都难于区分，必须结合天气背景、天空状况、空气湿度、颜色气味及卫星监测等因素来综合分析判断，才能得出正确结论，而且雾和霾的天气现象有时是可以相互转换的。

O），人吸入后不会对身体有什么影响。

而霾在吸入人的呼吸道后雾的成分主要是水（H2对人体有害，长期吸入，严重的甚至会导致死亡。

全国人大代表钟南山说，空气污染不仅对于呼吸系统、神经系统、心血管系统有危害，跟肺癌也密切相关。