2017年高考模拟试卷(1)
2017年高考模拟试卷(1)

2017年高考模拟试卷(1)市数学学科基地命题第Ⅰ卷(必做题,共160分)一、填空题:本大题共14小题,每小题5分,共70分 . 1. 已知{}2A x x =<,{}1B x x => ,则A B =I ▲ . 2. 已知复数z 满足(1i)2i z -=+,则复数z 的实部为 ▲ . 3. 函数5()log (9)f x x =+ 的单调增区间是 ▲ .4. 将一颗质地均匀的正方体骰子(每个面上分别写有数字1,2,3,4,5,6)先后抛掷2次,观察向上的点数,则点数之和是6的的概率是 ▲ .5. 执行如图所示的伪代码,若输出的y 的值为13,则输入的x 的值是 ▲ . 6. 一种水稻品种连续5年的平均单位面积产量(单位:t/hm 2)分别为:9.4,9.7,9.8,10.3,10.8,则这组样本数据的方差为 ▲ . 7. 已知函数()sin()(030)f x x ωϕωϕ=+<<<<π,.若4x π=-为函数()f x 的一个零点,3x π=为函数()f x 图象的一条对称轴,则ω的值为 ▲ .8. 已知1==a b ,且()()22+⋅-=-a b a b ,则a 与b 的夹角为 ▲ . 9. 已知() 0 αβ∈π,,,且()1tan 2αβ-=,1tan 5β=-,则tan α的值为 ▲ . 10.已知关于x 的一元二次不等式2 >0ax bx c ++的解集为()1 5-,,其中a b c ,,为常数.则不等式2 0cx bx a ++≤的解集为 ▲ .11.已知正数x ,y 满足121x y+=,则22log log x y +的最小值为 ▲ .12.在平面直角坐标系xOy 中,已知圆C :22280x y x ++-=,直线l :(1) ()y k x k =-∈R 过定点A ,且交圆C 于点B ,D ,过点A 作BC 的平行线交CD 于点E ,则三角形AEC 的周长为 ▲ . 13.设集合{}*2n A x x n ==∈N ,,集合{}*n B x x b n ==∈N , 满足A B =∅I ,且*A B =N U .若对任意的*n ∈N ,1n n b b +<,则2017b 为 ▲ .14.定义:{}max a b ,表示a ,b 中的较大者.设函数{}()max 11f x x x =-+,,2()g x x k =+, 若函数()()y f x g x =-恰有4个零点,则实数k 的取值围是 ▲ .(第5题)(第17题)二、解答题:本大题共6小题,共90分. 15.(本小题满分14分)在三角形ABC 中,角A ,B ,C 的对边分别是a ,b ,c .已知coscos 02C C +=.(1)求C 的值.(2)若c =1,三角形ABC ,求a ,b 的值.16.(本小题满分14分)如图,在多面体ABC —DEF 中,若AB //DE ,BC //EF . (1)求证:平面ABC //平面DEF ;(2)已知CAB ∠是二面角C -AD -E 的平面角. 求证:平面ABC ⊥平面DABE .17.(本小题满分14分)如图,长方形ABCD 表示一6⨯12(单位:分米)的工艺木板,其四周有边框(图中阴影部分), 中间为薄板.木板上一瑕疵(记为点P )到外边框AB ,AD 的距离分别为1分米,2分米. 现欲经过点P 锯掉一块三角形废料MAN ,其中M N ,分别在AB ,AD 上.设AM ,AN 的 长分别为m 分米,n 分米.(1)为使剩下木板MBCDN 的面积最大,试确 定m ,n 的值;(2)求剩下木板MBCDN 的外边框长度(MB , BC CD DN ,,的长度之和)的最大值.AFED CB(第16题)18.(本小题满分16分)如图,在平面直角坐标系xOy 中,设椭圆C :2221x y a+=(a >1). (1)若椭圆C 的焦距为2,求a 的值;(2)求直线1y kx =+被椭圆C 截得的线段长(用a ,k 表示);(3)若以A (0,1)为圆心的圆与椭圆C 总有4个公共点,求椭圆C 的离心率e 的取值围.19.(本小题满分16分)已知函数32()2()f x x ax bx c a b c =+++∈R ,,.(1)若函数()f x 为奇函数,且图象过点(12)-,,求()f x 的解析式; (2)若1x =和2x =是函数()f x 的两个极值点. ①求a ,b 的值;②求函数()f x 在区间[03],上的零点个数.20.(本小题满分16分)设等差数列{}n a 与等比数列{}n b 共有m * ( )m ∈N 个对应项相等. (1)若110a b =>,11110a b =>,试比较66a b ,的大小; (2)若34n a n =-,()12n n b -=--,求m 的值.(3)若等比数列{}n b 的公比0q >,且1q ≠,求证:3m ≠.【参考结论】若R 上可导函数()f x 满足()()f a f b =(a b <),则()a b ξ∃∈,,()0f ξ'=.(第18题)(第21- A 题)第II 卷(附加题,共40分)21.【选做题】本题包括A, B,C,D 四小题,每小题10分,请选定其中两小题,并在相应的答题区域.........作答... A ,(选修4-1;几何证明选讲) 如图,四边形ABCD 是圆的接四边形,BC BD =,BA 的延长线交CD的延长线于点E .求证:AE 是四边形ABCD 的外角DAF ∠的平分线.B .(选修4-2:矩阵与变换) 已知矩阵1002⎡⎤=⎢⎥⎣⎦A ,11201⎡⎤⎢⎥=⎢⎥⎣⎦B ,求矩阵ABC .(选修4-4:坐标系与参数方程)在极坐标系中,求圆24sin 50ρρθ--=截直线π()3θρ=∈R所得线段长. D.(选修4-5:不等式选讲)求证:5. 【选做题】第22题、23题,每题10分,共计20分.22.在平面直角坐标系xOy 中,设点2(2)A a a ,,2(2)B b b ,,(12)C ,均在抛物线22(0)y px p =>上,且90BCA ∠=︒. (1)求p 的值; (2)试用a 表示b ;(3)求直线5x =与直线AB 交点的纵坐标. 23.(1)2n n +(2n n ∈*N ≥,)个不同数随机排成如下的一个三角形:k M ()1 k n k ∈*N ≤≤,是从上往下数第k 行中的最大数,n p 为12n M M M <<⋅⋅⋅<的概率. (1)求2p 的值;(2)猜想n p 的表达式,并证明.* * * * * * …………………… * * … * *2017年高考模拟试卷(1)参考答案一、填空题1.()12,.A B =I ()12,.2.12. (2)(1)2i 13.1i (1)(1)2i i iz i i ++++===--+,则复数z 的实部为 12.3.(-9,+∞).函数5()log (9)f x x =+的单调增区间(-9,+∞).4. 536.点数之和是6包括(15)(24)(33)(42)(15),,,,,,,,,共5种情况,则所 求概率是536.5. 8.若613x =,则1326x =>,不符;若513x +=,则82x =>.6. 0. 244.这组数据的平均数为10,方差为222221(109.4)(109.7)(109.8)(1010.3)(1010.8)0.245⎡⎤-+-+-+-+-=⎣⎦. 7. 76.函数()f x 的周期4(3T π=⨯)43π7π+=,又Τω2π=,所以ω的值为76.8. π.依题意,2220+⋅-=a a b b ,又1==a b ,故1⋅=a b ,则a 与b 的夹角为π. 9. 113.()()()()11tan tan 25tan tan 111tan tan 125αββααββαββ--+=-+===⎡⎤⎣⎦---⨯-113. 10. 115⎡⎤-⎢⎥⎣⎦,.因为不等式2 >0ax bx c ++的解集为()1 5-,,所以(1)(5)>0a x x +-,且0a <,即245>0ax ax a --,则45b a c a =-=-,,则2 0cx bx a ++≤即为254 0ax ax a --+≤,从而254 1 0x x +-≤,故解集为115⎡⎤-⎢⎥⎣⎦,. 11.3.由121x y +=得,02y x y =>-,则()222222222log log log log log 22y y x y xy y y -++===-- ()224log 24log 832y y ⎡⎤=-++=⎢⎥-⎣⎦≥. 12. 5.易得圆C :22(1)9x y -+=,定点A (10)-,,EA ED =,则3EC EA EC ED +=+=, 从而三角形AEC 的周长为5.13. 2027.易得数列{}n b :1,3,5,6,7,9,10,11,12,13,14,15,17,…,则1137++++…12121k k k ++-=--,当10k =,12120372017k k +--=>,2037201720-=,从而第2017项为1121202027--=.14. ()()5114-∞-U ,,.{}()max 11f x x x =-+,2()()g x x k k =+∈R 恰有4个零点,当54k =时,()f x 与()g x 相切.如图,结合图形知,实数k 的取值围是()(5114-∞-U ,,. 二、解答题15. (1)因为cos cos 02C C +=,所以22cos cos 1022C C +-=,解得cos12C =-或1cos 22C =, 又0C π<< ,故22C π0<<,从而23C π=,即23C π=. (2)由余弦定理2222cos c a b ab C =+-得,221a b ab ++=, ① 由三角形ABC 的面积1sin 2ab C ==13ab =, ②由①②得,a b ==.16. (1)因为AB //DE ,又AB ⊄平面DEF ,DE ⊂平面DEF ,所以AB //平面DEF , 同理BC //平面DEF , 又因为AB BC C =I , AB BC ⊂,平面ABC ,所以平面ABC //平面DEF . (2)因为CAB ∠是二面角C -AD -E 的平面角,所以CA AD BA AD ⊥⊥,, 又因为CA AB A =I , AB ,CA ⊂平面ABC ,所以DA ⊥平面ABC , 又DA ⊂平面DABE ,所以平面ABC ⊥平面DABE .17. (1)过点P 分别作AB ,AD 的垂线,垂足分别为E ,F , 则△PNF 与△MPE 相似,从而PF NF EM PE=,所以2121n m -=-,即211m n+=. 欲使剩下木板的面积最大,即要锯掉的三角形废料MAN 的面积 12S mn =最小.由211m n =+≥8mn ≥ (当且仅当21m n =,即4m =,2n =时,“=”成立),此时min 4S =(平方分米). (2)欲使剩下木板的外边框长度最大,即要m n +最小.由(1)知,()()212333n m m n m n m n m n +=++=++=≥,(当且仅当2n m m n =即2m =,1n 时,“=”成立),答:此时剩下木板的外边框长度的最大值为33-分米.18. (1)由椭圆C :2221x y a+=(a >1)知, 焦距为2=, 解得a =因为a >1,所以a .(第17题)(2)设直线1y kx =+被椭圆截得的线段长为ΑΡ, 由22211y kx x y a=+⎧⎪⎨+=⎪⎩,,得()2222120a k x a kx ++=, 解得10x =,222221a kx a k=-+.因此2122221a kΑΡx a k=-=+. (3)因为圆与椭圆的公共点有4个,由对称性可设y 轴左侧的椭圆上有2个不同的公共点为P ,Q ,满足AP AQ =.记直线AP ,AQ 的斜率分别为1k ,2k ,且1k ,20k >,12k k ≠. 由(2)知,1AP,2AQ ,12,所以22222222121212)1(2)0k k k k a a k k ⎡⎤-+++-=⎣⎦(,因为1k ,20k >,12k k ≠,所以22222212121(2)0k k a a k k +++-=, 变形得,()()22221211111(2)a a k k ++=+-, 从而221+(2)1a a ->,解得a则)1c e a =. 19. (1)因为函数()f x 为偶函数,所以()()f x f x -=-,即()()()323222x a x b x c x ax bx c -+-+-+=----, 整理得,20ax c +=,所以0a c ==,从而3()2f x x bx =+,又函数()f x 图象过点(12)-,,所以4b =-. 从而3()24f x x x =-.(2)①32()2()f x x ax bx c a b c =+++∈R ,,的导函数2()62f x x ax b '=++. 因为()f x 在1x =和2x =处取得极值,所以(1)0(2)0f f ''==,, 即6202440a b a b ++=⎧⎨++=⎩,,解得912a b =-=,. ②由(1)得32()2912()f x x x x c c =-++∈R ,()6(1)(2)f x x x '=--. 列表:5c4c 9c显然,函数()f x 在[0,3]上的图象是一条不间断的曲线.由表知,函数()f x 在[0,3]上的最小值为(0)f c =,最大值为(3)9f c =+. 所以当0c >或90c +<(即9c <-)时,函数()f x 在区间[03],上的零点个数为0. 当50c -<<时,因为(0)(1)(5)0f f c c =+<,且函数()f x 在(0,1)上是单调增函数,所以函数()f x 在(0,1)上有1个零点.当54c -<<-时,因为(1)(2)(5)(4)0f f c c =++<,且()f x 在(1,2)上是单调减函数, 所以函数()f x 在(1,2)上有1个零点.当94c -<<-时,因为(2)(3)(4)(9)0f f c c =++<,且()f x 在(2,3)上是单调增函数, 所以函数()f x 在(2,3)上有1个零点.综上,当0c >或9c <-时,函数()f x 在区间[03],上的零点个数为0;当95c -<-≤或40c -<≤时,零点个数为1; 当4c =-或5c =-时,零点个数为2;当54c -<<-时,零点个数为3.20.(1)依题意,11111166022a a a aa b ++=--- (当且仅当111a a =时,等号成立).(2)易得()1342n n --=--,当n 为奇数时,()13420n n --=--<,所以43n <,又*n ∈N ,故1n =,此时111a b ==-; 当n 为偶数时,()13420n n --=-->,所以43n >,又*n ∈N ,故246n =,,,…若2n =,则222a b ==,若4n =,则448a b ==, 下证:当6n ≥,且n 为偶数时,()1342n n --<--,即()12134n n --->-.证明:记()12()34n p n n ---=-,则()()()112434(2)341()32322n n n p n n p n n n +----+-=⋅=>++--, 所以()p n 在6n ≥,且n 为偶数时单调递增, 从而17()(6)17p n p >=>.综上,124n =,,,所以m 的值为3. (3)证明:假设3m =,不妨123n n n <<,满足11n n a b =,22n n a b =,33n n a b =, 设1(1)n a a n d =+-,11n n b b q -=,其中0q >,且1q ≠, 记11()(1)xb f x a x d q q=+--⋅, 则1()ln x b f x d q q q '=-⋅,()21()ln x b f x q q q''=-⋅,由参考结论,知112()n n ξ∃∈,,1()0f ξ'=,223()n n ξ∃∈,,2()0f ξ'=, 同理,12()ηξξ∃∈,,()0f η''=,即()21()ln 0b f q q qηη''=-⋅=, 这与()21()ln 0b f q q qηη''=-⋅≠矛盾,故假设不成立,从而3m ≠.第Ⅱ卷(附加题,共40分)A .因为ABCD 是圆的接四边形,所以DAE BCD ∠=∠,FAE BAC BDC ∠=∠=∠. 因为BC BD =,所以BCD BDC ∠=∠, 所以DAE FAE ∠=∠,所以AE 是四边形ABCD 的外角DAF ∠的平分线. B .因为1002⎡⎤=⎢⎥⎣⎦A ,11201⎡⎤⎢⎥=⎢⎥⎣⎦B ,所以11101122020102⎡⎤⎡⎤⎡⎤⎢⎥⎢⎥==⎢⎥⎢⎥⎢⎥⎣⎦⎣⎦⎣⎦AB . 由逆矩阵公式得,1114()102-⎡⎤-⎢⎥=⎢⎥⎢⎥⎣⎦AB . C .以极点O 为原点,极轴Ox 为x 轴正半轴建立平面直角坐标系xOy . 则圆24sin 50ρρθ--=化为普通方程22450x y y +--=, 即22(2)9x y +-=. 直线π()3θρ=∈R化为普通方程y =0y -=. 圆心(02),0y -=的距离为1d ==,于是所求线段长为D .由柯西不等式可得,(()22222215⎤++=⎦≤,(当且仅当=16[34]5x =∈,时,“=”成立.) 22. (1)依题意,将(12)C ,代入22(0)y px p =>得,2p =;(2)因为 90BCA ∠=︒,所以0CA CB ⋅=u u u r u u u r ,其中2(122)CA a a =--u u u r ,,2(122)CB b b =--u u u r ,,从而22(1)(1)4(1)(1)0a b a b --+--=, 化简得,51a b a +=-+; (3)易得直线AB 的方程为222()y a x a b a-=-+, 令5x =得,22(5)2251y a a a a a =-+=-+-++.23.当2n =时,1,2,3排成一个三角形有:12 31 32 2 13 23 1 3 1 2 3 2 1共有6种,其中满足12M M <的有如下4种:所以24263p ==;(2)设当n k =时,12k M M M <<⋅⋅⋅的概率为k p ,则当1n k =+时,121k k M M M M +<<⋅⋅⋅<的概率为1k p +,而1k +排在第1k +行的概率为12(1)(11)22k k k k +=++++,所以12(2)2k k p p k k +=+≥,即12(2)2k kp k p k +=+≥, 故3224p p =,4325p p =,5426p p =,…,121n n p p n-=+,叠乘,得()22214n n p p n n -=+⨯⨯⋅⋅⋅⨯,其中24263p ==,所以n p 2(1)!nn =+.1 2 3 1 3 2 2 1 3 23 1。
2017高考模拟试卷及答案

期中模拟试卷一、现代文阅读(9分,每小题3分)由青蒿素产业化带来的双创启示草容屠呦呦荣获诺奖,是对她个人的奖励,也是对青蒿素产业化的褒奖。
屠呦呦之所以能在科研成功40多年后获奖,是由于青蒿素在使用中所产生出的巨大社会影响,为这一奖项的实至名归,增添了厚重的分量。
这其中,产业化功不可没。
由屠呦呦获奖,我们更可一探科研与产业化之间的关系。
创新与创业,这样的双创可以相辅相成。
屠呦呦取得的无疑是原始创新成果。
对于疟疾这个古老的病种,全球曾经有100多个国家受此困扰,每年感染人数达上亿,无数生命在蚊蝇肆虐中被夺去。
在屠呦呦获奖前,已有4位科学家,因与抗疟疾有关的科研而获得诺贝尔奖。
到二十世纪五六十年代,在人类的顽强阻击下,疟疾疫情已大大缓解,只在非洲地区,疟疾仍是一些国家棘手的病疫。
作为生物世界的一部分,疟疾从来都在不断变异中重获新生。
为此,科学家也总在寻找魔高一尺、道高一丈的武器。
面对当时疟疾对国际主流抗疟疾药物产生的抗药性,屠呦呦另辟蹊径,从中药中找到了青蒿素,从而为人类又一次战胜这一致命顽症提供了保证,这无疑具有里程碑意义。
但在我国,在屠呦呦的科研产出成果的20世纪70年代,疟疾显然已不是急迫的疫情,于是这一成果没有受到像国际社会那般的重视。
此外,艰辛的产业化过程,也使青蒿素没有较快产生出广泛的社会影响。
青蒿素是科学发明,而走向大规模产业化的却是复方蒿甲醚。
复方蒿甲醚的奇特功效,正是由于其对青蒿素和本芴醇的配伍研究所得。
然而,即便是功效如此之好的药物,如果不能送到最需要的患者手中,它也不可能产生出广泛的社会影响。
正是由于药物的拥有者军事医学科学院与诺华公司开展的大规模合作,才使复方蒿甲醚快速走向了国际市场。
2001年,世卫组织向非洲推荐了这一药物,使这一地区的疟疾死亡率下降了九成,当病愈出院的患者们高呼“中国神药”时,国际社会已经深深地记住了屠呦呦——这个降伏疟疾之魔的人。
如今,复方蒿甲醚已通过85个国家和地区的药品注册,是美国FDA(食品药物管理局)批准的第一个,也是唯一一个以青蒿素类药物为基础的复方抗疟药。
江西省2017年普通高等学校招生全国统一考试仿真卷(一)

绝密★启用前江西省上饶县2017年普通高等学校招生全国统一考试仿真卷理科综合能力测试(一)本试卷共32页,38题(含选考题)。
全卷满分300分。
考试用时150分钟。
★祝考试顺利★注意事项:1、答题前,先将自己的姓名、准考证号填写在试题卷和答题卡上,并将准考证号条形码粘贴在答题卡上的指定位置。
用2B铅笔将答题卡上试卷类型A后的方框涂黑。
2、选择题的作答:每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3、非选择题的作答:用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4、选考题的作答:先把所选题目的题号在答题卡上指定的位置用2B铅笔涂黑。
答案写在答题卡上对应的答题区域内,写在试题卷、草稿纸和答题卡上的非答题区域均无效。
5、考试结束后,请将本试题卷和答题卡一并上交。
可能用到的相对原子质量:H 1 C 12N 14O 16Na 23Cl 35.5K 39Cr 52Mn 55Ge 73Ag 108第Ⅰ卷一、选择题:本大题共13小题,每小题6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. 下列关于DNA和RNA的叙述,正确的是()A. DNA主要分布在细胞核中,RNA在细胞核中没有分布B. 提取细胞中全部核酸进行碱基分析可知嘌呤碱基数等于嘧啶碱基数C. 原核生物的遗传物质主要是RNA,真核生物的遗传物质是DNAD. 甲基绿染色剂使DNA呈现绿色,吡罗红染色剂使RNA呈现红色【解析】细胞核中既有DNA又有RNA,A错误;细胞中既有DNA又有RNA,双链DNA分子中嘌呤碱基与嘧啶碱基相等,RNA是单链结构,嘌呤碱基与嘧啶碱基可能不相等,因此提取细胞中全部核酸进行碱基分析可知嘌呤碱基数不一定等于嘧啶碱基数,B错误;凡是具有细胞结构的生物的遗传物质都是DNA,C错误;甲基绿染色剂使DNA呈现绿色,吡罗红染色剂使RNA呈现红色,D正确。
2017年高考文科数学模拟试题(1)(含答案)(可编辑修改word版)

2017 年高考文科数学模拟试题(1)本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
注意事项:1. 答题前,考生务必将自己的准考证号、姓名填写在答题卡上。
考生要认真核对答题卡上粘贴的条形码的“准考证号、姓名、考试科目”与考生本人准考证号、姓名是否一致。
2. 第Ⅰ卷每小题选出答案后,用 2B 铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,在选涂其他答案标号。
第Ⅱ卷必须用 0.5 毫米黑色签字笔书写作答.若在试题卷上作答,答案无效。
3. 考试结束,监考员将试题卷、答题卡一并收回。
第Ⅰ卷(选择题,共 60 分)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.设集合 M ={-1,0,1},N ={0,1,2}.若 x ∈M 且 x ∉N ,则 x 等于( )A .1B .-1C .0D .2⎧ 2. 设 A = ⎨x ∈ R ⎩⎫ 1⎬ ,B ={x ∈R |ln(1-x )≤0},则“x ∈A ”是“x ∈B ”的()⎭ A. 充分不必要条件B .既不充分也不必要条件C .充要条件D .必要不充分条件 3. 定义在 R 上的函数 g (x )=e x +e -x +|x |,则满足 g (2x -1)<g (3)的 x 的取值范围是( )A .(-∞,2)B .(-2,2)C .(-1,2)D .(2,+∞)→ → → →4. 在△ABC 所在的平面内有一点P ,如果2P A +P C =A B -P B ,那么△PBC 的面积与△ABC 的面积之比是()1 32 1 A .2 B . C . D .43 3 5. 如图所示是一个算法的程序框图,当输入 x 的值为-8 时,输出的结果是( )A .-6B .9C .0D .-3a 16b 6. 若不等式 x 2+2x < + 对任意 a ,b ∈(0,+∞)恒成立,则实数 x 的取值范围是( )b aA .(-4,2)B .(-∞,-4)∪(2,+∞)C .(-∞,-2)∪(0,+∞)D .(-2,0)7. 点 M ,N 分别是正方体 ABCD A 1B 1C 1D 1 的棱 A 1B 1,A 1D 1 的中点,用过点 A ,M ,N 和点 D ,N ,C 1的两个截面截去正方体的两个角后得到的几何体如图所示,则该几何体的主视图、左视图、俯视图依次为( )1 x ≥3 22 2 2 2A.①③④B.②④③C.①②③D.②③④x2 y28.已知双曲线-=1(a>0,b>0)的渐近线与圆x2+(y-3)2=1 相切,则双曲线的离心率为( )a2 b2A.2 B. C D.39.《九章算术》之后,人们进一步地用等差数列求和公式来解决更多的问题.《张邱建算经》卷上第22题为:今有女善织,日益功疾(注:从第2 天起每天比前一天多织相同量的布),第一天织5 尺布,现在一月(按30 天计),共织390 尺布,则第2 天织的布的尺数为( )161 161 81 80A.B.C.D.29 31 15 1510.我们把平面内与直线垂直的非零向量称为直线的法向量,在平面直角坐标系中,利用求动点轨迹方程的方法,可以求出过点A(-3,4),且法向量为n=(1,-2)的直线(点法式)方程为1×(x+3)+(-2)×(y-4) =0,化简得x-2y+11=0。
2017年高中英语高考模拟试题

英语试题(一)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,共30分)阅读下列短文,从每题所给A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
ALiving with other students can be a wonderful experience. Here are a few tips for student accommodations that can help ensure a great experience and build lifelong friendships: Screen your roommates carefully if you are given a choice. Combining the living spaces of several students into one location can be exciting and rewarding experience for the outgoing students. If you are on the shy side, or prefer a quiet group to study with, pick quieter roommates.Divide the bills evenly. Some students are far less responsible than their roommates and tend to let their part of the finance slide. Dissatisfaction is quick to build when everyone has to pay the bill for a fellow student who can’t seem to pay his/her share of the money.Carry your part of the load. Everyone has to clean the bathroom and the kitchen sometime.Don’t avoid your part of responsibility. Student accommodations can get messy and it involves everyone to keep them tidy and healthy.Think about someone else before you think about yourself. Put your roommates interests above your own. Life will be far enjoyable when everyone is concerned about the feelings property and studies of each other.Be open and honest. Hostilities (敌意) and frustrations may cause problems that can’t be fixed. Everyone brings different standards and expectations to group living and it’s in everyone’s best interest to put them into the open. Disagreements can be managed more warmly when your are willing to be both open and listen to others.1. When it comes to the bills, every member is advised to________ .A. foot the bill for a fellow studentB. let his/her part of the finances slideC. pay his/her own share of moneyD. take more responsibility than others2. The role “carry your part of the load” means every room member should ________.A. avoid making too much noiseB. take turns to keep the room tidyC. take care of others when they are illD. avoid staying up and oversleeping3. To be a good member, one should learn to ________ according to the passage.A. choose his/her roommates at randomB. balance his/her interests with othersC. express his/her disagreement openly and honestlyD. tolerate different standards and expectationsBHi, everybody. Over the past couple months, most of the political headlines you’ve read have probably been about the government shutdown and the launch of the Affordable Care Act(平价医疗法案). And I know that many of you have rightly never been more frustrated with Washington.But if you look beyond those headlines, there are some good things happening in our economy. And that’s been my top prio rity(优先考虑)since the day I walked into the Oval Office.After decades in which the middle class was working harder and harder just to keep up, and apunishing recession(衰退)that made it worse, we made the tough choices required not just to recover from crisis, but to rebuild on a new foundation for stronger, more durable economic growth.Five years later, we have fought our way back. Our businesses have created 7.8 million new jobs in the past 44 months. Another 200,000 Americans went back to work last month.The American auto industry has come back with more than 350,000 new jobs –-- jobs putting out and selling the high-tech, fuel-efficient cars the world wants to buy. And they’re leading the charge in a business that has added jobs for the first time since the 1990s –-- a big reason why our businesses sell more goods and services “Made in America” than ever before.We decided to stop our addiction to foreign oil. And today, we produce more renewable energy than ever, more natural gas than anybody, and for the first time in nearly 20 years, America now produces more oil than we buy from other countries.We decided to fix a broken health care system. And even though the task has been rough, so far, about 500,000 Americans gain health coverage starting January 1st. And by the way, health care costs are growing at the slowest rate in 50 years.And one more thing: since I took office, we’ve cut our deficits (赤字) by more than half. And that makes it easier to invest in the things that create jobs –-- education, research, and so on.Imagine how much farther along we could be if both parties were working together. Think about what we could do if the few didn’t hold the economy hostage (人质) every few months, or waste time on dozens of votes to repeal the Affordable Care Act rather than try to help us fix it.In the weeks ahead, I’ll keep talking about my plan to build a better bargain for the middle class. Good jobs. A good education. A chance to buy a home, save, and retire. And yes, the financial security of affordable health care. And I’ll look for any willing partners who want to help.Because of your hard work and tough sacrifices over the past five years, we’re pointed in the right direction. But we’ve got more work to do to keep moving that way.And as long as I’m President, I’ll keep doing everything I can to create jobs, grow the economy, and make sure that everyone who works hard has a chance to get ahead. Thanks, and have a great weekend.4. Which of the following is not the reason for people’s frustration with the government?A. The government shutdownB. Unemployment rateC. The addiction to foreign oilD. Cancelling the Affordable Care Act5. Why does the president mention more goods and services “Made in America”?A. To show that American goods and services are very popular.B. To indicate that American people should be dependent on themselves.C. To show that the employment rate has been increased.D. To show that American auto industry enjoys high technology.6. What’s the meaning of the underlined word “repeal”?A. put an end toB. try hard to fixC. make strongerD. get accustomed to7. According to the speech, which of the following can be implied?A. American people have every reason to feel frustrated with the government.B. Health care costs are growing at the slowest rate in 50 years.C. The president feels sorry that the economy is not moving in the right direction.D. Some government officials don’t agree with the president on the medical care sy stem.CConventional wisdom is a major barrier to innovation(创新)that threatens the survival of companies everywhere. It’s based on the assumption that old ideas will always work, so they shouldn’t be challenged. While this may be a valid assumption in situations that don’t change, it’s unlikely to hold true in a changing situation. In today’s rapid changing global environment, old methods often don’t work, and stubbornly using them can lead to major problems.Most people seem to agree with conventional wisdom because it gives one a false sense of security. If everyone else believes it, then it must be tree. Individuals who use conventional wisdom are certain that they are right, and being fight is good. They want to continue using old ideas rather than take risks with changes that might not work. In 1977, Ken Olsen, co-founder and CEO of Digital Equipment Corporation(DEC), stated “There is no reason for any individual to have a computer in his home.” Despite being a dominant leader in the computer industry, DEC n o longer exists.People seem to forget that since innovation is a change, there can be no innovation without change. Unfortunately, conventional wisdom prevents leaders, followers and companies from changing and therefore innovating. If companies don’t innovate, but their competitors do, the future is likely to be problematic(成问题的). Breaking from conventional wisdom has led to many of the most innovative companies and products in history across many industries, so it has a powerful effect on business success.Ted Turner(founder of CNN)knew little, if anything, about the news business, but he knew it was inconvenient to watch news only at the dinner hour, as was common before CNN. Turner’s solution was to create a cable (有线的)channel devoted to news 24 hours a day. The news establishment reflected conventional wisdom at the time, and predicted his idea would fail because no one wanted to watch the news all day. However, it doesn’t take a rocket scientist to understand that viewers don’t have to watch the news all day for the CNN to work. Viewers just have to watch when they want to get information. Due to conventional thinking, the critics failed to recognize the opportunity that was clear to Ted. They assumed that only what was familiar to them could work in the future.Conventional wisdom prevents creativity, flexibility and risk-taking, so unconventional leaders enthusiastically break from it. To survive, boom and maintain competitive advantage, companies must be flexible when reacting to change.8. DEC has disappeared probably because ________.A. the CEO stuck to the conventional ideasB. the consumers didn’t like its productsC. the leaders lacked the sense of securityD. the employees took many risks with changes9. The founding of CNN is used as an example to prove ________.A. missing opportunities could lead to failureB. watching news at the dinner hour is convenientC. changing could contribute to business successD. conventional wisdom influences business success10. What does the underlined part probably mean?A. Rocket scientists can ensure the CNN works properly.B. It’s easy to know people needn’t watch the news all the time.C. It’s necessary to understand when people watch the news.D. Most of the viewers don’t like to watch the news at work.11. The passage is mainly written to tell us that _______A. old methods are changing with timeB. opportunities lead to business successC. successful companies need wise leadersD. conventional wisdom limits innovationDA new study has discovered that meditation(冥想)and oxygen sport together reduce depression(抑郁).The Rutgers University study found that this mind and body combination done twice a week for only two months,reduced the symptoms for a group of students by 40 percent “We are excited by the findings Because we saw such a meaningful improvement in both clinically depressed and non—depressed students,”said lead author Dr.Brandon Alderman.“It is the first time that both of these two behavioral ways have been looked at together for dealing with depression.”Researchers believe the two activities have an interactive effect in combating depression.Alderman and Dr.Traeey Shors discovered that a combination of mental and physical training (MAP)enabled students with major depressive disorder not to let problems or negative thoughts defeat them.Rutgers researchers say those who participated in the study began with 30 minutes of focused attention meditation followed by 30 minutes of oxygen sport.They were told that if their thoughts drifted to the past or the future they should refocus on their breathing,enabling those with depression to accept moment-to-moment changes in attention.Shors,who studies the production of new brain cells in the hippocampus—part of the brain involved in memory and learning—says scientists have shown in animal mode1s that oxygen sport exercise keeps a large number of certain cells alive.The idea for the human intervention(干预)came from her laboratory studies,studies,she says,the main goal of helping individuals acquire new skills so that they can learn to recover from stressful life events.By learning to focus their attention and exercise,people who are fighting depression can acquire new learning skills that can help them process information and reduce the overwhelming recollection of memories from the past,Shors says.“We know these treatments,can be practiced over a lifetime and that they will be effective in improving mental health.”said Alderman.“The good news is that this intervention can be practiced by anyone time any time and at no cost.”12.What made the research so different?A.Adopting a way of meaningful talk.B.Combining the two ways to treat depression.C.Treating depression with special medicine.D.Comparing the depressed with the non-depressed.13.The underlined word “combating”in Paragraph 3 can be replaced by______.A.fighting B.identifying C.distinguishing D.examining14.What did the participants do in the research?A.They did oxygen sport half an hour before thinking.B.They through quietly and then took exercise.C.They took exercise longer than they thought.D.They took exercise while thinking quietly.15.What is Shors’main purpose of her studies?A.To find our certain brain cells of humans.B.To study the production of new brain cells.C.To offer people a new methord to treat stress.D.To decide the links between stress and exercise.第二节(共5小题,每小题2分,共10分)根据短文内容,从短文后的七个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。
2017高考模拟试卷

2017高考模拟试卷考试是对人的知识、能力、人格特征或其他心理、生理特征的客观测量。
以下是店铺为您整理的2017高考模拟试卷,仅供参考!2017高考模拟试卷试题及答案第Ⅰ卷第一部分听力(共两节,满分30分)做题时,现将答案标在试卷上,录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)(略)听下面5段对话,每段对话后有一个小题。
从题中所给的A,B,C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例: How much is the shirt?A.£ 19.15B.£ 9.18C.£ 9.15答案是C。
第二部分阅读理解(共两节,满分60分)第一节 (共15小题;每小题3分,满分45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,并在答题卡该项涂黑。
AMonthly Talks at London Canal MuseumOur monthly talks start at 19:30 on the first Thursday of each month except August. Admission is at normal charges and you don’t need to book. They end around 21:00.November 7thThe Canal Pioneers, by Chris Lewis. James Brindley is recognized as one of the leading early canal engineers. He was also a major player in training others in the art of nanal planningand building. Chris Lewis will explain how Brindley made such a positive contribution to the education of that group of early “civil enginerrs”.December 5thIce for the Metropolis, by Malcolm Tucker. Well before the arrival of freezers, there was a demand for ice for food preservation and catering, Malcolm will explain the history of importing natural ice and the technology of building ice wells, and how London’s ice trade grew.February 6thAn Update on the Cotsword Canals, by Liz Payne. The Smoudwater Canal is moving towards reopenling. The Thames and Severn Canal will take a little longer. We will have a report on the present state of play.March 6thEyots and Aits- Thames Islands, by Mir anda Vickers. The Thames had many islands. Miranda has undertaken a review of all of them. She will tell us about those of greatest interest.Online bookings:/bookMore into:/whatsonLondon Canal Museum12-13 New Wharf Road, London NI 9RT www.canalmuseum.mobiTel************21.When is the talk on James Brindley?A. Feb ruary 6th.B. March 6th.[C. November 7th.D. December 5th.22. What is the topic of the talk in February?A. The Canal Pioneers.B. Ice for the MetropolisC. Eyots and Aits- Thames IslandsD. An Update on the Cotsword Canals23. Who will give the talk on the islands in the Thames.A. Miranda VickersB. Malcolm TuckerC. Chris LewisD. Liz PayneBThe freezing Northeast hasn’t been a terribly fun place to spend time this winter, so when the chance came for a weekend to Sarasota, Florida, my bags were packed before you could say “sunshine”. I left for the land of warmth and vitamin C(维生素C), thinking of beaches and orange trees. When we touched down to blue skies and warm air, I sent up a small prayer of gratefulness. Swimming pools, wine tasting, and pink sunsets(at normal evening hours, not 4 in the afternoon) filled the weekend, but the best part- particularly to my taste, dulled by months of cold- weather root vegetables- was a 7 a.m. adventure to the Sarasota farmers’ market that proved to be more than wort h the early wake-up call.The market, which was founded in 1979, sets up its tents every Saturday from 7:00 am to 1 p.m, rain or shine, along North Lemon and State streets. Baskets of perfect red strawberries, the red-painted sides of the Java Dawg coffee truck; and most of all, the tomatoes: amazing, large, soft and round red tomatoes.Disappointed by many a broken, vine-ripened(蔓上成熟的) promise, I’ve refused to buy winter tomatoes for years. No matter how attractive they look in the store, once I get themhome they’re unfailingly dry, hard, and tast eles s. But I homed in, with uncertainty, on one particular table at the Brown’s Grove Farm’s stand, full of fresh and soft tomatoes the size of my fist. These were the real deal- and at that moment, I realized that the best part of Sarasota in winter was going to be eating things that back home in New York I wouldn’t be experiencing again for months.Delighted as I was by the tomatoes in sight, my happiness deepened when I learned that Brown’s Grove Farm is one of the suppliers for Jack Dusty, a newly opened restaurant at the Sarasota Ritz Carlton, where- luckily for me- I was planning to have dinner that very night. Without even seeing the menu, I knew I’d be ordering every tomato on it.24. What did the author think of her winter life in New York?A. Exciting.B. Boring.C. Relaxing.D. Annoying.25. What made the author’s getting up late early worthwhile?A. Having a swim.B. Breathing in fresh air.C. Walking in the morning sun.D. Visiting a local farmer’s market.26. What can we learn about tomatoes sold in New York in winter?A . They are soft.B. They look nice.C. They taste great.D. They are juicy.27. What was the author going to that evening?A. Go to a farm.B. Check into a hotel.C. Eat in a restaurant.D. Buy fresh vegatables.CSalvador Dali (1904-1989) was one of the most popular of modern artists. The Pompidou Centre in Paris is showing its respect and admiration for the artist and his powerful personality with an exhibition bringing together over 200 paintings, sculptures, drawings and more. Among the works and masterworks on exhibition the visitor will find the best pieces, most importantly The Persistence of Memory. There is also L’Enigme sans Fin from 1938, works on paper, objects, and projects for stage and screen and selected parts from television programm es reflecting the artist’s showman qualities.The visitor will enter the World of Dali through an egg and is met with the beginning, the world of birth. The exhibition follows a path of time and subject with the visitor exiting through the brain.The exhibition shows how Dali draws the viewer between two infinities (无限). “From the infinity small to the infinity large, contraction and expansion coming in and out of focus: amazing Flemish accuracy and the showy Baroque of old painting that he used in his museum-theatre in Figueras,” explains the Pompidou Centre.The fine selection of the major works was done in close collaboration (合作)with the Museo Nacional Reina Sofia in Madrid, Spain, and with contributions from other institutions like the Salvador Dali Museum in St. Petersburg.28. Which of the following best describe Dali according to Paragraph 1?A. Optimistic.B. ProductiveC. Generous.D. Traditional.29. What is Dali’s The Persistence of Memory considered to be?A. On e of his masterworks.B. A successful screen adaptation.C. An artistic creation for the stage.D. One of the beat TV programmes.30. How are the exhibits arranged at the World of Dali?A. By popularity.B. By importance.C. By size and shape.D. By time and subject.31. What does the word “contributions” in the last paragraph refer to?A. Artworks.B. Projects.C. Donations.D. Documents.DConflict is on the menu tonight at the café La Chope. This evening, as on every Thursday night, psychologist Maud Lehanne is le ading two of France’s favorite pastimes, coffee drinking and the “talking cure”. Here they are learning to get in touch with their true feelings. It isn’t always easy. They customers-some thirty Parisians who pay just under $2 (plus drinks) per session-care quick to intellectu alize (高谈阔论),slow to open up and connect. “You are forbidden to say ‘one feels,’ or ‘people think’,”Lehane told them. “Say ‘I think,’ ‘Think me’.”A café society where no intellectualizing is allowed? It couldn’t seem more un-French. But Lehanne’s psychology café is about more than knowing oneself: It’s trying to help the city’s troubled neighborhood cafes. Over the years, Parisian cafes have fallen victim to changes in the French lifestyle-longer working hours, a fast food boom and a younger generation’sdesire to spend more time at home. Dozens of new theme cafes appear to change the situation. Cafes focused around psychology, history, and engineering are catching on, filling tables well into the evening.32.What are people encouraged to do at the cafe La Chope?A. Learn a new subjectB. Keep in touch with friends.C. Show off their knowledge.D. Express their true feelings.33. How are cafes affected by French lifestyle changes?A. They are less frequently visited.B. They stay open for longer hours.C. They have bigger night crowds.D. They start to serve fast food.34. What are theme cafes expected to do?A. Create more jobs.B. Supply better drinks.C. Save the cafe business.D. Serve the neighborhood.35. Why are psychology cafes becoming popular in Paris?A. They bring people true friendship.B. They give people spiritual support.C. They help people realize their dreams.D. They offer a platform for business links.D篇.文章大意:文章主要讲述了精神咖啡馆在法国越来越受欢迎。
2017年全国英语高考模拟试卷1

2017年全国英语高考模拟试卷12017年全国英语高考模拟试卷1面临大考,心态要好;摆正身心,价值千金;只要努力,总有天地!祝高考成功!下面是店铺为大家推荐的2017年全国英语高考模拟试卷1,仅供大家参考!2017年全国英语高考模拟试卷1第I卷(选择题)第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节 (共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. When did the man begin to wait at the subway station?A. At 7 o’ clockB. At 8 o’ clockC. At 9 o’ clock2. What will the weather be like in April according to the man?A. CoolB. HotC. Windy3. Where are the speakers?A. In an officeB. In a restaurantC. At the subway station4. What is the man’s problem?A. He’s not accustomed to the large buildingB. He can’t find a bigger apartmentC. He can’t find his new building5. What do the speakers say about heights?A. Both of them have overcome their fearB. They are both afraid of high places nowC. Both of them prefer high places these days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。
河北省2017届高考模拟英语试题(一)含答案

普通高等学校招生中全国统一考试模拟试题英语(一)本试题卷共8页,全卷满分150分,考试用时120分钟。
注意事项:1.答题前,先将自己的姓名、准考证号填写在答题卡上,并将准考证号条形码粘贴在答题卡的指定位罝上。
2.选择题的作答:每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3.选择题的作答:用签字笔直接答在答题卡上对应的答题区域内,写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4.考试结束后,请将本试题卷和答题卡一并上交。
第I卷第一部分听力(共一节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,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 will the woman do on Kriday night?A. See a inovie.B. While a report.C. Visit the man.2. When does the woman always get off work?A. At 5:55 p.m.B. At 6:00 p.m.C. At 6:10 p.m.3. Where is Julia from?A. Spain.B. The USA.C. Italy.4. Who does the woman miss?A. Her mother.B. Her sister.C. Her friends.5. What does the woman probably want to do?A. Take a long walk.B. Go to the country.C. Have a good rest.第二节 (共5小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
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2017年高考模拟试卷(1)南通市数学学科基地命题第Ⅰ卷(必做题,共160分)一、填空题:本大题共14小题,每小题5分,共70分 . 1. 已知{}2A x x =<,{}1B x x => ,则A B = ▲ . 2. 已知复数z 满足(1i)2i z -=+,则复数z 的实部为 ▲ . 3. 函数5()log (9)f x x =+ 的单调增区间是 ▲ .4. 将一颗质地均匀的正方体骰子(每个面上分别写有数字1,2,3,4,5,6)先后抛掷2次,观察向上的点数,则点数之和是6的的概率是 ▲ .5. 执行如图所示的伪代码,若输出的y 的值为13,则输入的x 的值是 ▲ . 6. 一种水稻品种连续5年的平均单位面积产量(单位:t/hm 2)分别为:9.4,9.7,9.8,10.3,10.8,则这组样本数据的方差为 ▲ . 7. 已知函数()sin()(030)f x x ωϕωϕ=+<<<<π,.若4x π=-为函数()f x 的一个零点,3x π=为函数()f x 图象的一条对称轴,则ω的值为 ▲ .8. 已知1==a b ,且()()22+⋅-=-a b a b ,则a 与b 的夹角为 ▲ . 9. 已知() 0 αβ∈π,,,且()1tan 2αβ-=,1tan 5β=-,则tan α的值为 ▲ .10.已知关于x 的一元二次不等式2 >0ax bx c ++的解集为()1 5-,,其中a b c ,,为常数.则不等式 2 0cx bx a ++≤的解集为 ▲ .11.已知正数x ,y 满足121x y+=,则22log log x y +的最小值为 ▲ .12.在平面直角坐标系xOy 中,已知圆C :22280x y x ++-=,直线l :(1) ()y k x k =-∈R 过定点A ,且交圆C 于点B ,D ,过点A 作BC 的平行线交CD 于点E ,则三角形AEC 的周长为 ▲ . 13.设集合{}*2n A x x n ==∈N ,,集合{}*n B x x b n ==∈N , 满足A B =∅ ,且*A B =N .若对任意的*n ∈N ,1n n b b +<,则2017b 为 ▲ .14.定义:{}max a b ,表示a ,b 中的较大者.设函数{}()max 11f x x x =-+,,2()g x x k =+, 若函数()()y f x g x =-恰有4个零点,则实数k 的取值范围是 ▲ .(第5题)(第17题)二、解答题:本大题共6小题,共90分. 15.(本小题满分14分)在三角形ABC 中,角A ,B ,C 的对边分别是a ,b ,c .已知coscos 02C C +=.(1)求C 的值.(2)若c =1,三角形ABC ,求a ,b 的值.16.(本小题满分14分)如图,在多面体ABC —DEF 中,若AB //DE ,BC //EF . (1)求证:平面ABC //平面DEF ;(2)已知CAB ∠是二面角C -AD -E 的平面角. 求证:平面ABC ⊥平面DABE .17.(本小题满分14分)如图,长方形ABCD 表示一张6⨯12(单位:分米)的工艺木板,其四周有边框(图中阴影部分), 中间为薄板.木板上一瑕疵(记为点P )到外边框AB ,AD 的距离分别为1分米,2分米. 现欲经过点P 锯掉一块三角形废料MAN ,其中M N ,分别在AB ,AD 上.设AM ,AN 的 长分别为m 分米,n 分米.(1)为使剩下木板MBCDN 的面积最大,试确 定m ,n 的值;(2)求剩下木板MBCDN 的外边框长度(MB , BC CD DN ,,的长度之和)的最大值.A FED CB(第16题)18.(本小题满分16分)如图,在平面直角坐标系xOy 中,设椭圆C :2221x y a+=(a >1). (1)若椭圆C 的焦距为2,求a 的值;(2)求直线1y kx =+被椭圆C 截得的线段长(用a ,k 表示);(3)若以A (0,1)为圆心的圆与椭圆C 总有4个公共点,求椭圆C 的离心率e 的取值范围.19.(本小题满分16分)已知函数32()2()f x x ax bx c a b c =+++∈R ,,.(1)若函数()f x 为奇函数,且图象过点(12)-,,求()f x 的解析式; (2)若1x =和2x =是函数()f x 的两个极值点. ①求a ,b 的值;②求函数()f x 在区间[03],上的零点个数.20.(本小题满分16分)设等差数列{}n a 与等比数列{}n b 共有m * ( )m ∈N 个对应项相等. (1)若110a b =>,11110a b =>,试比较66a b ,的大小; (2)若34n a n =-,()12n n b -=--,求m 的值.(3)若等比数列{}n b 的公比0q >,且1q ≠,求证:3m ≠.【参考结论】若R 上可导函数()f x 满足()()f a f b =(a b <),则()a b ξ∃∈,,()0f ξ'=.(第18题)(第21- A 题)第II 卷(附加题,共40分)21.【选做题】本题包括A, B,C,D 四小题,每小题10分,请选定其中两小题,并在相应的答题区域.........内作答.... A ,(选修4-1;几何证明选讲) 如图,四边形ABCD 是圆的内接四边形,BC BD =,BA 的延长线交CD 的延长线于点E .求证:AE 是四边形ABCD 的外角DAF ∠的平分线.B .(选修4-2:矩阵与变换) 已知矩阵1002⎡⎤=⎢⎥⎣⎦A ,11201⎡⎤⎢⎥=⎢⎥⎣⎦B ,求矩阵ABC .(选修4-4:坐标系与参数方程)在极坐标系中,求圆24sin 50ρρθ--=截直线π()3θρ=∈R所得线段长. D .(选修4-5:不等式选讲)求证:5. 【选做题】第22题、23题,每题10分,共计20分. 22.在平面直角坐标系xOy 中,设点2(2)A a a ,,2(2)B b b ,,(12)C ,均在抛物线22(0)y px p =>上,且90BCA ∠=︒.(1)求p 的值; (2)试用a 表示b ;(3)求直线5x =与直线AB 交点的纵坐标. 23.(1)2n n +(2n n ∈*N ≥,)个不同数随机排成如下的一个三角形:k M ()1 k n k ∈*N ≤≤,是从上往下数第k 行中的最大数,n p 为12n M M M <<⋅⋅⋅<的概率. (1)求2p 的值;(2)猜想n p 的表达式,并证明.* * * * * * …………………… * * … * *2017年高考模拟试卷(1)参考答案一、填空题1.()12,.A B = ()12,.2.12. (2)(1)2i 13.1i (1)(1)2i i i z i i ++++===--+,则复数z 的实部为 12.3.(-9,+∞).函数5()log (9)f x x =+的单调增区间(-9,+∞).4. 536.点数之和是6包括(15)(24)(33)(42)(15),,,,,,,,,共5种情况,则所 求概率是536.5. 8.若613x =,则1326x =>,不符;若513x +=,则82x =>.6. 0. 244.这组数据的平均数为10,方差为222221(109.4)(109.7)(109.8)(1010.3)(1010.8)0.24⎡⎤-+-+-+-+-=⎣⎦.7. 76.函数()f x 的周期4(3T π=⨯)43π7π+=,又Τω2π=,所以ω的值为76.8. π.依题意,2220+⋅-=a a b b ,又1==a b ,故1⋅=a b ,则a 与b 的夹角为π. 9. 113.()()()()11tan tan 25tan tan 111tan tan 125αββααββαββ--+=-+===⎡⎤⎣⎦---⨯-113. 10. 115⎡⎤-⎢⎥⎣⎦,.因为不等式2 >0ax bx c ++的解集为()1 5-,,所以(1)(5)>0a x x +-,且0a <,即245>0ax ax a --,则45b a c a =-=-,,则2 0cx bx a ++≤即为254 0ax ax a --+≤,从而254 1 0x x +-≤,故解集为115⎡⎤-⎢⎥⎣⎦,. 11.3.由121x y +=得,02y x y =>-,则()222222222log log log log log y y x y xy -++=== ()224log 24log 832y y ⎡⎤=-++=⎢⎥-⎣⎦≥.12. 5.易得圆C :22(1)9x y -+=,定点A (10)-,,EA ED =,则3EC EA EC ED +=+=, 从而三角形AEC 的周长为5.13. 2027.易得数列{}n b :1,3,5,6,7,9,10,11,12,13,14,15,17,…, 则1137++++…12121k k k ++-=--,当10k =,12120372017k k +--=>,2037201720-=,从而第2017项为1121202027--=.14. ()()5114-∞- ,,.{}()max 11f x x x =-+,2()()g x x k k =+∈R 恰有4个零点,当54k =时,()f x 与()g x 相切.如图,结合图形知,实数k 的取值范围是()5114-∞- ,,.二、解答题15. (1)因为cos cos 02C C +=,所以22cos cos 10C C +-=,解得cos 12C =-或1cos 22C =, 又0C π<< ,故22C π0<<,从而23C π=,即23C π=.(2)由余弦定理2222cos c a b ab C =+-得,221a b ab ++=, ① 由三角形ABC 的面积1sin 2ab C13ab =, ②由①②得,a b ==.16. (1)因为AB //DE ,又AB ⊄平面DEF , DE ⊂平面DEF ,所以AB //平面DEF , 同理BC //平面DEF , 又因为AB BC C = , A B B C⊂,平面ABC ,所以平面ABC //平面DEF . (2)因为CAB ∠是二面角C -AD -E 的平面角,所以CA AD BA AD ⊥⊥,, 又因为CA AB A = , AB ,CA ⊂平面ABC ,所以DA ⊥平面ABC , 又DA ⊂平面DABE ,所以平面ABC ⊥平面DABE .17. (1)过点P 分别作AB ,AD 的垂线,垂足分别为E ,F , 则△PNF 与△MPE 相似,从而PF NF EM PE=,所以21n -=,即211m n+=. 欲使剩下木板的面积最大,即要锯掉的三角形废料MAN 的面积 12S mn =最小.由211m n =+≥8mn ≥ (当且仅当21m n =,即4m =,2n =时,“=”成立),此时min 4S =(平方分米). (2)欲使剩下木板的外边框长度最大,即要m n +最小.由(1)知,()()212333n m m n m n m n m n +=++=++=≥,(当且仅当2n m m n =即2m =,1n 时,“=”成立),答:此时剩下木板的外边框长度的最大值为33-18. (1)由椭圆C :2221x y a+=(a >1)知, 焦距为2, 解得a =因为a >1,所以a =(第17题)(2)设直线1y kx =+被椭圆截得的线段长为ΑΡ, 由22211y kx x y a=+⎧⎪⎨+=⎪⎩,,得()2222120a k x a kx ++=, 解得10x =,222221a kx a k=-+.因此2122221a k ΑΡx a k=-=+. (3)因为圆与椭圆的公共点有4个,由对称性可设y 轴左侧的椭圆上有2个不同的公共点为P ,Q ,满足AP AQ =.记直线AP ,AQ 的斜率分别为1k ,2k ,且1k ,20k >,12k k ≠. 由(2)知,1AP2AQ12, 所以22222222121212)1(2)0k k k k a a k k ⎡⎤-+++-=⎣⎦(,因为1k ,20k >,12k k ≠,所以22222212121(2)0k k a a k k +++-=,变形得,()()22221211111(2)a a k k ++=+-,从而221+(2)1a a ->,解得a ,则)1c e a =. 19. (1)因为函数()f x 为偶函数,所以()()f x f x -=-,即()()()323222x a x b x c x ax bx c -+-+-+=----, 整理得,20ax c +=,所以0a c ==,从而3()2f x x bx =+,又函数()f x 图象过点(12)-,,所以4b =-. 从而3()24f x x x =-.(2)①32()2()f x x ax bx c a b c =+++∈R ,,的导函数2()62f x x ax b '=++. 因为()f x 在1x =和2x =处取得极值,所以(1)0(2)0f f ''==,, 即6202440a b a b ++=⎧⎨++=⎩,,解得912a b =-=,. ②由(1)得32()2912()f x x x x c c =-++∈R ,()6(1)(2)f x x x '=--. 列表:显然,函数()f x 在[0,3]上的图象是一条不间断的曲线.由表知,函数()f x 在[0,3]上的最小值为(0)f c =,最大值为(3)9f c =+. 所以当0c >或90c +<(即9c <-)时,函数()f x 在区间[03],上的零点个数为0. 当50c -<<时,因为(0)(1)(5)0f f c c =+<,且函数()f x 在(0,1)上是单调增函数,所以函数()f x 在(0,1)上有1个零点.当54c -<<-时,因为(1)(2)(5)(4)0f f c c =++<,且()f x 在(1,2)上是单调减函数, 所以函数()f x 在(1,2)上有1个零点.当94c -<<-时,因为(2)(3)(4)(9)0f f c c =++<,且()f x 在(2,3)上是单调增函数, 所以函数()f x 在(2,3)上有1个零点.综上,当0c >或9c <-时,函数()f x 在区间[03],上的零点个数为0; 当95c -<-≤或40c -<≤时,零点个数为1; 当4c =-或5c =-时,零点个数为2;当54c -<<-时,零点个数为3.20.(1)依题意,11111166022a a a aa b ++=- (当且仅当111a a =时,等号成立).(2)易得()1342n n --=--,当n 为奇数时,()13420n n --=--<,所以43n <,又*n ∈N ,故1n =,此时111a b ==-;当n 为偶数时,()13420n n --=-->,所以43n >,又*n ∈N ,故246n =,,,… 若2n =,则222a b ==,若4n =,则448a b ==, 下证:当6n ≥,且n 为偶数时,()1342n n --<--,即()12134n n --->-. 证明:记()12()34n p n n ---=-,则()()()112434(2)341()32322n n n p n n p n n n +----+-=⋅=>++--, 所以()p n 在6n ≥,且n 为偶数时单调递增, 从而17()(6)1p n p >=>.综上,124n =,,,所以m 的值为3. (3)证明:假设3m =,不妨123n n n <<,满足11n n a b =,22n n a b =,33n n a b =, 设1(1)n a a n d =+-,11n n b b q -=,其中0q >,且1q ≠, 记11()(1)xb f x a x d q q=+--⋅, 则1()ln x b f x d q q q '=-⋅,()21()ln x b f x q q q''=-⋅,由参考结论,知112()n n ξ∃∈,,1()0f ξ'=,223()n n ξ∃∈,,2()0f ξ'=, 同理,12()ηξξ∃∈,,()0f η''=,即()21()ln 0b f q q qηη''=-⋅=, 这与()21()ln 0b f q q qηη''=-⋅≠矛盾,故假设不成立,从而3m ≠.第Ⅱ卷(附加题,共40分)A .因为ABCD 是圆的内接四边形,所以DAE BCD ∠=∠,FAE BAC BDC ∠=∠=∠. 因为BC BD =,所以BCD BDC ∠=∠, 所以DAE FAE ∠=∠,所以AE 是四边形ABCD 的外角DAF ∠的平分线. B .因为1002⎡⎤=⎢⎥⎣⎦A ,1101⎡⎤⎢⎥=⎢⎥⎣⎦B , 所以11101122020102⎡⎤⎡⎤⎡⎤⎢⎥⎢⎥==⎢⎥⎢⎥⎢⎥⎣⎦⎣⎦⎣⎦AB .由逆矩阵公式得,1114()102-⎡⎤-⎢⎥=⎢⎥⎢⎥⎣⎦AB . C .以极点O 为原点,极轴Ox 为x 轴正半轴建立平面直角坐标系xOy . 则圆24sin 50ρρθ--=化为普通方程22450x y y +--=, 即22(2)9x y +-=. 直线π()3θρ=∈R化为普通方程y =0y -=. 圆心(02),0y -=的距离为1d ==,于是所求线段长为=D .由柯西不等式可得,(()22222215⎤++=⎦≤,(当且仅当16[34]5x =∈,时,“=”成立.) 22. (1)依题意,将(12)C ,代入22(0)y px p =>得,2p =;(2)因为 90BCA ∠=︒,所以0CA CB ⋅= ,其中2(122)CA a a =-- ,,2(122)CB b b =-- ,,从而22(1)(1)4(1)(1)0a b a b --+--=, 化简得,51a b a +=-+; (3)易得直线AB 的方程为222()y a x a b a-=-+, 令5x =得, 22(5)2251y a a a a a =-+=-+-++.23.当2n =时,1,2,3排成一个三角形有:12 3 1 3 2 2 1 3 23 13 1 2 3 2 1共有6种,其中满足12M M <的有如下4种:所以24263p ==;(2)设当n k =时,12k M M M <<⋅⋅⋅的概率为k p ,则当1n k =+时,121k k M M M M +<<⋅⋅⋅<的概率为1k p +, 而1k +排在第1k +行的概率为12(1)(11)2k k k k +=++++,所以12(2)2k k p p k k +=+≥,即12(2)2kk p k p k +=+≥,故3224p p =,4325p p =,5426p p =, (121)n p p n -=+,叠乘,得()22214n n p p n n -=+⨯⨯⋅⋅⋅⨯,其中24263p ==,所以n p 2(1)!nn =+.1 2 3 1 3 2 2 1 3 23 1。