【联考】河南省豫南九校2016-2017学年高一英语下学期第三次联考试题(含解析)

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河南省豫南九校17学年高一物理下学期第三次联考试题(扫描版)

河南省豫南九校2016-2017学年高一物理下学期第三次联考试题（扫描版）豫南九校2016—2017学年下期第三次联考高一物理参考答案1．A 2．【答案】D【解析】试题分析：物体的速度方向沿轨迹的切线方向；加速度的方向指向轨迹的凹向，故可能正确的只有D ．故选D ． 3．【答案】C【解析】因为两球下落的高度之比为2：1，根据h=gt 2得，，高度之比为2：1，则时间之比为：1，故A 错误．两球的水平位移之比为2：1，时间之比为：1，根据知，初速度之比为：1，故B 错误．根据动能定理可知，到达斜面底端时的动能之比E Ka ：E kb =(mv a 2+mgh a )：(mv b 2+mgh b )=2：1，故C 正确．小球落在斜面上，速度方向与水平方向夹角的正切值是位移与水平方向夹角正切值的2倍，因为位移与水平方向的夹角相等，则速度与水平方向的夹角相等，到达斜面底端时速度方向与斜面的夹角也相等，故D 错误．故选C4．【答案】C【解析】如图a ，汽车通过拱桥（半径为R ）的最高点处最大速度因满足： 2v mg m R=,即v =选项A 错误；.如图b 所示是一圆锥摆，根据2tan sin mg m l θωθ= ，解得ω==，则圆锥摆的角速度相等，选项B 错误；如图c ，在光滑圆锥筒内做匀速圆周运动的同样的小球，受筒壁的支持力为sin N mgF θ=（θ为椎体顶角的一半），故支持力大小相等，选项C 正确；如图d ，火车转弯超过规定速度行驶时，外轨对轮缘会有挤压作用，选项D 错误；故选C5．【答案】B【解析】三颗星位于同一直线上，两颗星围绕中央星在同一半径为R 的圆轨道上运行；其中边上的一颗星受中央星和另一颗边上星的万有引力提供向心力．()222222m m v G G m R R R +＝，解之得： v ，选项B 正确，A 错误；24R T v ππ=＝，故选项CD 错误；故选B.6．【答案】C 【解析】根据002v v +=可知，上升过程中平均速度相同，选项A 错误；根据动能定理可知，上升过程中重力的功等于动能的变化12mv 02,故重力的功相同，选项B 错误；月球上的重力加速度较小，根据0v t g=可知，在月球上上升到最大高度的时间较大，根据WP t=可知，在月球上重力做功的平均功率较小，选项C 正确；根据动量定理可知，上升过程中重力的冲量等于动量的变化mv 0,故重力的冲量相同，选项D 错误；此题选择不正确的选项，故选C.7．【答案】B 【解析】对左侧轨道，小球A 运动到最高点的最小速度v=.由机械能守恒定律，mg h A =mv 2+mg·2R，解得若使小球A 沿轨道运动并且从最高点飞出，释放的最小高度为5R/2，选项A 错误。

河南省豫南九校2016-2017学年高一下学期第三次联考数学试题 ( word版含答案)

豫南九校2016—2017学年下期第三次联考高一数学试题第Ⅰ卷（选择题）一、选择题：本大题共12小题，每小题5分，共60分.在每个小题给出的四个选项中，有且只有一项符合题目要求.1.某单位有老、中、青职工430人，其中青年职工160人，中年职工人数是老年职工人数的2倍.为了解职工的身体状况，现采用分层抽样的方法进行调查，在抽取的样本中又青年职工32人，则该样本中的老年职工应抽取的人数为 A. 9 B. 18 C. 27 D. 362.若点22sin,cos 33ππ⎛⎫ ⎪⎝⎭在角α的终边上，则sin α的值为A. 12-B. 2-12 D.23.对具有线性相关关系的变量,x y ，测得一组数据如下根据上表，利用最小二乘法得它们的回归直线方程为10.5y x a =+，据此模型预测当10x =时，y 的估计值为A. 105.5B. 106C. 106.5D.1074.执行如图所示的程序框图，若输出的5n =，则输入的整数p 的最小值为A. 15B. 14C. 7D. 8 5.已知3sin35πα⎛⎫+= ⎪⎝⎭，则cos 6πα⎛⎫- ⎪⎝⎭的值是A. 35-B. 35C. 45D. 45- 6.在区间[]0,2上分别任取两个数,m n ，若向量()(),,1,1a m n b ==，则1a b -≤ 的概率是A. 2πB. 4πC. 3πD.8π7.要得到函数()cos 23f x x π⎛⎫=+⎪⎝⎭的图象，只需要将函数()sin 23g x x π⎛⎫=+⎪⎝⎭的图象A. 向左平移2π个单位长度 B.向右平移2π个单位长度 C.向左平移4π个单位长度 D. 向右平移4π个单位长度8.已知sin 1sin cos 2ααα=+，且向量()()tan ,1,2,tan AB BC αα== ，则AC 等于 A. ()2,3- B. ()1,2 C.()4,3 D.()3,29.已知02παβπ<<<<，又()34sin ,cos 55ααβ=+=-，则sin β= A. 0 B.2425 C. 1625D. 2425或162510.在ABC ∆中，2,3,60,AB BC ABC AD ==∠= 为BC 边上的高，O 为AD 的中点，若AO AB BC λμ=+，则λμ+=A.23 B. 12 C. 13D. 1 11.设函数()()sin 0,0,2f x A x A πωϕωϕ⎛⎫=+≠>< ⎪⎝⎭的图象关于直线23x π=对称，且它的最小正周期为π，则A.()f x 的图象经过点10,2⎛⎫ ⎪⎝⎭B. ()f x 在区间52,123ππ⎡⎤⎢⎥⎣⎦上是减函数 C. ()f x 的最大值为A D. ()f x 的图象的一个对称中心为5,012π⎛⎫⎪⎝⎭12.定义域为[],a b 的函数()y f x =的图象的两个端点为,A B ，(),M x y 是()f x 图象上任意一点，其中()[]1,x a b a b λλ=+-∈，已知向量()1ON OA OB λλ=+-，若不等式MN k ≤ 恒成立，则称函数()f x 在[],a b 上为：“k 阶线性近似”，若函数1y x x=-在[]1,2上“k 阶线性近似”，则实数k 的取值范围为A. [)0,+∞B. 1,12⎡⎫+∞⎪⎢⎣⎭ C.32⎡⎫++∞⎪⎢⎣⎭ D.32⎡⎫-+∞⎪⎢⎣⎭二、填空题：本大题共4小题，每小题5分，共20分.13.已知向量)()(,0,1,a b c k ==-=，若2a b - 与c 共线，则k = .14.定义运算a b *为,,a a ba b b a b≤⎧*=⎨>⎩，例如121*=，则函数()sin cos f x x x =*的值域为 .15.已知ABC ∆，其中顶点坐标分别为()()()1,1,1,2,2,1A B C ---，点D 为边BC 的中点，则向量AD 在向量AB方向上的投影为 .16.对任意R θ∈，不等式2sin 2cos 220m m θθ+--<恒成立，则实数m 的取值范围为 .三、解答题：本大题共6小题，共70分.解答应写出必要的文字说明或推理、验算过程. 17.（本题满分10分）（1）已知4sin 2cos 55cos 3sin 7αααα-=+，求sin cos αα⋅的值；（2的值.18.（本题满分12分）已知向量a 与b 的夹角为23π，2,3a b == .记32,2.m a b n a kb =-=+（1）若m n ⊥，求实数k 的值；（2）是否存在实数k ，使得//m n，说明理由.19.（本题满分12分）在一次“知识竞赛”中，有12,,,A A B C 四道题，其中12,A A 为难度相同的容易题，B 为中档题，C 为较难题.现甲、乙两位同学均需要从四道题目中随机抽取一道作答.（1）求甲、乙两位同学所选题目难度相同的概率；（2）求甲所选题目的难度大于乙所选题目的难度的概率.20.（本题满分12分）已知函数()sin cos .f x x x =+（1）若()()2f x f x =-，求22cos sin cos 1sin x x xx-+的值；（2）求函数()()()()2F x f x f x f x =⋅-+的最大值和单调递增区间.21.（本题满分12分）为了解春季昼夜温差大小与种子发芽多少之间的关系，现从4月的30天中随机挑选了5天进行研究，且分别记录了每天昼夜温差与每天每100颗种子浸泡后的发芽数，得到如下表格：（1）从这5天中任选2天，记发芽的种子数分别为,m n ，求事件“,m n 均不小于25”的概率；（2）从这5天中任选2天，若选取的是4月1日与4月30日的两组数据，请根据这5天中的另三天的数据，求出y 关于x 的线性回归方程ˆˆˆybx a =+.22.（本题满分12分）已知()22sin 22sin 261,,44242f x x t x t t x ππππ⎛⎫⎛⎫⎛⎫⎡⎤=---+-+∈ ⎪ ⎪ ⎪⎢⎥⎝⎭⎝⎭⎣⎦⎝⎭，其最小值为().g t（1）求()g t 的表达式；（2）当112t -≤≤时，要使关于t 的方程()g t kt =有一个实根，求实数k 的取值范围.豫南九校2016—2017学年下期第三次联考高一数学参考答案一、选择题（本大题共12小题，每小题5分，共60分。

河南省豫南九校2016-2017学年高一下学期第三次联考数学试题Word版含答案(1)

河南省豫南九校2016-2017学年高一下学期第三次联考数学试题第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.某单位共有老、中、青职工430人，其中有青年职工160人，中年职工人数是老年职工人数的2倍，为了解职工身体状况，现采用分层抽样方法进行调查，在抽取的样本中有青年职工32人，则该样本中的老年职工抽取人数为（） A ． 9 B ．18 C ．27 D ．362.若点22(sin,cos )33ππ在角α的终边上，则sin α的值为（）A ．12-B ．2-C ．12D ．23.对具有线性相关关系的变量,x y ，测得一组数据如下： 2 4 5 6 82040607080根据上表，利用最小二乘法得它们的回归直线方程为10.5y x a =+，据此模型预测当10x =时，y 的估计值为（）A ．105.5B ． 106C ． 106.5D ． 1074.执行如图的程序框图，若输出的5n =，则输入整数p 的最小值是（） A ． 15 B ．14 C. 7 D ．85.已知3sin()35πα+=，则cos()6πα-的值是（） A ． 35- B ．35 C. 45 D ．45-6.在区间[0,2]上分别任取两个数,m n ，若向量(,)a m n =，(1,1)b =，则||1a b -≤的概率是（）A ．2π B ．4π C. 3π D ．8π 7.要得到函数()cos(2)3f x x π=+的图象，只需将函数()sin(2)3g x x π=+的图象（）A ．向左平移2π个单位长度 B ．向右平移2π个单位长度 C. 向左平移4π个单位长度 D ．向右平移4π个单位长度8.已知sin 1sin cos 2ααα=+，且向量(tan ,1)AB α=，(2,tan )BC α=，则AC 等于（）A ．(2,3)-B ．(1,2) C. (4,3) D ．(3,2)9.已知02παβπ<<<<，又3sin 5α=，4cos()5αβ+=-，则sin β=（）A ． 0B ．2425 C. 1625 D ．2425或162510.在ABC ∆中，2AB =，3BC =，60ABC ∠=，AD 为BC 边上的高，O 为AD 的中点，若AO AB BC λμ=+，则λμ+=（） A ．23 B ．12 C. 13D ．1 11.设函数()sin()f x A x ωϕ=+（0A ≠，0ω>，||2πϕ<）的图象关于直线23x π=对称，且它的最小正周期为π，则（）A ．()f x 的图象经过点1(0,)2B ．()f x 在区间52[,]123ππ上是减函数 C. ()f x 的最大值为A D ．()f x 的图象的一个对称中心为5(,0)12π12.定义域为[,]a b 的函数()y f x =图象的两个端点为,A B ，(,)M x y 是()f x 图象上任意一点，其中(1)[,]x a b a b λλ=+-∈，已知向量(1)ON OA OB λλ=+-，若不等式||MN k ≤恒成立，则称函数()f x 在[,]a b 上“k 阶线性近似”.若函数1y x x=-在[1,2]上“k 阶线性近似”，则实数k 的取值范围是（）A ．[0,)+∞B ．1[,)12+∞ C. 3[)2+∞ D ．3[)2+∞ 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.已知向量(3,1)a =，(0,1)b =-，(,3)c k =，若2a b -与c 共线，则k = ．14.定义运算()()a ab a b b a b ≤⎧*=⎨>⎩，例如：121*=，则函数()sin cos f x x x =*的值域为．15.已知ABC ∆，其中顶点坐标分别为(1,1)A -，(1,2)B ，(2,1)C --，点D 为边BC 的中点，则向量AD 在向量AB 方向上的投影为．16.对任意的R θ∈，不等式2sin 2cos 220m m θθ+--<恒成立，则实数m 的取值范围为．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. （1）已知4sin 2cos 55cos 3sin 7αααα-=+；（2cos101cos170--的值.18. 已知向量a 与b 的夹角为23π，||2a =，||3b =，记32m a b =-，2n a kb =+. （1）若m n ⊥，求实数k 的值；（2）是否存在实数k ，使得//m n ，说明理由.19. 在一次“知识竞赛”活动中，有12,,,A A B C 四道题，其中12,A A 为难度相同的容易题，B 为中档题，C 为较难题，现甲、乙两位同学均需从四道题目中随机抽取一题作答.（1）求甲、乙两位同学所选的题目难度相同的概率；（2）求甲所选题目的难度大于乙所选题目的难度的概率. 20. 已知函数()sin cos f x x x =+.（1）若()2()f x f x =-，求22cos sin cos 1sin x x xx-+的值；（2）求函数2()()()()F x f x f x f x =-+的最大值和单调增区间.21. 为了解春季昼夜温差大小与某种子发芽多少之间的关系，现在从4月份的30天中随机挑选了5天进行研究，且分别记录了每天昼夜温差与每天每100颗种子浸泡后的发芽数，得到如下表格：日期 4月1日 4月7日 4月15日 4月21日 4月30日温差x C 10 11 13 12 8 发芽数y 颗2325302616（1）从这5天中任选2天，记发芽的种子数分别为,m n ，求事件“,m n 均不小于25”的概率；（2）从这5天中任选2天，若选取的是4月1日与4月30日的两组数据，请根据这5天中的另三天的数据，求出y 关于x 的线性回归方程^^^y b x a =+.（参考公式：^1221()ni ii nii x y nx yb xn x ==-=-∑∑，^^^a yb x =-）22.已知22()sin (2)2sin(2)6144f x x t x t t ππ=---+-+，[,]242x ππ∈，其最小值为()g t . （1）求()g t 的表达式；（2）当112t -≤≤时，要使关于t 的方程()g t kt =有一个实根，求实数k 的取值范围. 试卷答案一、选择题（本大题共12小题，每小题5分，共60分。

河南省商丘市九校2016-2017学年高一下学期期末联考英语试题含答案

2016－2017学年下期期末联考高一英语试题本试卷分试题卷和答题卡两部分，试题卷共10页，答题卡共2页.请按要求把答案涂、写在答题卡规定的范围内,超出答题框或答在试题卷上的答案无效。

满分120分,考试时间100分钟。

考试结束只收答题卡。

第Ⅰ卷（选择题；共70分)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。

AWhy do men die earlier than women？The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age.The largest study of the effects of ageing on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age。

“We have found that the power of the male heart falls by 20—25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK.“Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70，one—third of those cells die and are not replaced in men,” said Goldspink. “This is part of the ageing process.”What surprises scientists is that the female heart sees very little loss of these cells。

河南省豫南九校2016-2017学年高二下学期期中联考英语试题含答案

（考试时间：100分钟试卷满分：120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，并在答题卡上将该项涂黑。

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河南省豫南九校2016-2017学年高一下学期第三次联考生物试题含答案

河南省豫南九校2016—2017学年高一下学期第三次联考生物试题一、选择题(40小题,每小题1.5分，共60分)1。

假说—演绎法包括“观察实验现象、提出问题、作出假设、演绎推理、验证假设、得出结论”六个环节。

利用该方法孟德尔发现了两个遗传规律，下列说法正确的是A。

提出问题是建立在豌豆纯合亲本杂交和F1自交遗传实验的基础上B。

孟德尔所作假设的核心内容是“生物体能产生数量相等的雌雄配子C.测交实验的后代中有30株高茎豌豆和34株矮茎豌豆属于演绎推理D。

孟德尔发现的遗传规律可解释有性生殖生物所有相关性状的遗传现象2。

大鼠的毛色由两对等位基因控制。

用黄色大鼠与黑色大鼠进行杂交实验,结果如图。

据图判断，下列叙述错误的是A.控制大鼠体色的两对等位基因位于非同源染色体上B。

F2中米色的雌雄大鼠交配产生的后代仍然是米色大鼠C.亲本中的黄色和黑色大鼠都是纯合子D。

F2中的灰色个体大部分是纯合子3.下图所示杂合体的测交后代，不考虑交叉互换，会出现1:1：1：1性状分离比的是4.如图为果蝇体内某个细胞的示意图。

下列相关叙述正确的是A。

图中的染色体2、6、7、8可组成一个染色体组B.在细胞分裂过程中等位基因D、d不一定发生分离C.据图判断该果蝇为雄性，且3对等位基因符合自由组合定律D.1、2染色体片段发生交换属于染色体结构变异中的易位5.下列关于大豆花色性状的杂交实验中，能判定性状显隐性关系的是①紫花×紫花→紫花②紫花×紫花→301紫花十101白花③紫花×白花→紫花④紫花×白花→98紫花+107白花A.②和③B。

①和②C。

③和④D。

④和①6。

将基因型为Dd的豌豆连续自交，在后代中的纯合子和杂合子按所占的比例得到所示曲线图，据图分析，错误的说法是A.a曲线可代表自交n代后,纯合子所占的比例B.c曲线可代表后代中杂合体所占比例随自交代数的变化C.隐性纯合子的比例比曲线b所对应的比例要小D。

河南省豫南九校2016-2017学年高二下学期第三次联考生物试题扫描版含答案

豫南九校2016—2017学年下期第三次联考生物参考答案一、选择题（1-20每题1．5分，21-30每题1分，共40分）1．【答案】D【解析】核糖体和中心体是蛔虫细胞和团藻细胞共有的无膜结构的细胞器，A项正确；蓝藻细胞的细胞壁的主要成分为纤维素和肽聚糖，小麦细胞的细胞壁的主要成分为纤维素和果胶，B项正确；胰岛B细胞是以胞吐的方式分泌胰岛素，体现了细胞膜具有的流动性，C 项正确；神经细胞轴突末梢有大量突起，有利于通过胞吐释放神经递质，接受神经递质的特异性受体位于突触后膜上，D项错误。

2．【答案】D【解析】图中的甲、乙、丙、丁分别表示细菌、线粒体、叶绿体、细胞核。

只有乙、丙、丁都具有双层膜结构，A错误。

；具有丁结构的动物，如蛔虫没有线粒体，具有丁结构的植物细胞如植物根部细胞没有叶绿体，B、C项错误；这四结构中都含有DNA和RNA，D项正确。

3．【答案】C【解析】肝细胞通过主动运输的方式吸收葡萄糖，通过自由扩散的方式吸收甘油，A错误；被动运输包括自由扩散和协助扩散两种方式，其中协助扩散需要载体蛋白协助但不消耗ATP，自由扩散既不需要载体蛋白协助也不消耗ATP，B错误；在质壁分离的过程中，细胞失水，细胞液浓度逐渐升高，C正确；人体红细胞膜吸收葡萄糖属于协助扩散，不消耗能量，D错误。

4．【答案】D【解析】探究性实验的实验结果是未知的，验证性实验的实验结果是已知的，A项错误；低温能够降低酶的活性，但低温并没有破坏酶的空间结构，B项错误；碘液遇淀粉变蓝，探究淀粉酶对淀粉和蔗糖的专一性时，因碘液只能检测反应物淀粉的剩余量，不能检测蔗糖是否被分解，所以不能用碘液进行鉴定，C项错误；研究温度对酶活性的影响时，自变量是温度，而酶具有高效性，为确保实验结果的准确性，应将酶与底物溶液分别在相应的实验温度下保温后再混合，D项正确。

5．【答案】D【解析】由图可知，若运动强度长时间超过c，会因为乳酸大量积累而使肌肉酸胀乏力，A正确；运动强度大于c后，肌肉细胞产生的二氧化碳量与氧气消耗量相同，因为无氧呼吸不产生二氧化碳，B正确；有氧呼吸产生的能量大部分以热能散失，部分在ATP中，C正确；在bc和cd段中，血液中乳酸水平都在上升，说明这两段都是有氧呼吸和无氧呼吸共存，错误。

河南省豫南九校高一英语下学期期中联考试题(扫描版)

河南省豫南九校2016-2017学年高一英语下学期期中联考试题（扫描版）豫南九校2016—2017学年下期期中联考高一英语参考答案A【语篇解读】本文是一则广告，介绍了新开放的华特迪斯尼家族博物馆。

21. A 细节理解题。

由第二段的 Lunch will be on your own 可知,午餐不包含在费用里。

22. C 推理判断题。

根据 Time:9:00 am to 4:00 pm 可知博物馆开放7小时。

23. C 细节理解题。

从 Cost per person:$35.00 for adults,$25.00 for young people of 6-17yearsold and seniors over 65 years old,and $10.00 for children under 6 years of age.可知C正确。

B【语篇解读】略。

24. C 25. D 26. D 27. AC【语篇解读】“我”的女儿从很小起就给家人写卡片传递她对家人的爱,这个习惯多年都未曾改变。

28. D 细节理解题。

根据文章第四段和第五段的第一、二句可知本题选择D项。

29. B 推理判断题。

根据文章最后一段第一句话I couldn’t help but remember that she hasbrought me countless hours of joy throughout these years.可知本题选择B项。

30. D 词义猜测题。

根据第七段最后一句One afternoon only a week or so ago, I foun d a lovenote next to my pillow以及第五段第二句There were little notes showing her love for eachofus...可知本题选择D项。

31. C 推理判断题。

根据全文内容可知本题选择C项。

河南省豫南九校高一英语下学期第三次联考试题(扫描版)(2021年整理)

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豫南九校2016—2017学年下期第三次联考高一英语参考答案阅读理解 A)AABD B）DCD C） CADB D）CDBC FCAEG完形填空 41——-50ABBCD DCAAC51———60BDBCA DACDB语法填空 61。

religious 62.an 63。

are held 64. because 65.honors66。

arrival 67。

India’s68。

that/which 69. on/during 70。

what短文改错1。

stressing—--—stressed 2。

busy study——- busy studying 3. that---what4。

asleep———— sleepy 5. because——--—so 6。

classmate——-classmates7. relax us —-—-relax ourselves 8. the music ---the 去掉9。

in weekends-—-- on/at w eekends 10。

interest ed—-—interesting书面表达To whom i t may concern，I'm one of your customers. I ordered a set of Bookworm Series on your website twoweeks ago，but I didn’t receive them until yesterday.And much to my disappoin tment， the books were so poorly packed up that the cover of one book was torn。

河南省豫南九校2016-2017学年高二下学期第三次联考理科数学试题扫描版含答案

豫南九校2016—2017学年下期第三次联考数学（理）参考答案一、选择题BCBCDACDAACB1．B【解析】因为2220x x -+=，所以1i z =±，所以z ==．故选B ．2．C 【解析】根据数学归纳法的证明步骤，可知第二步归纳假设的正确写法：假设n ＝k (n ≥5)时命题成立．3．B 【解析】因为35791145a a a a a ++++=，所以7545a =，所以79a =，因为33S =-，所以21a =-，所以公差7225a a d -==，所以5235a a d =+=．故选B ． 4．C【解析】设BC 边上的高线为AD ，则3B C A D =，所以AC，AB =．由余弦定理，知222222cos 210AB AC BC A AB AC +-===-⋅，故选C ． 5．D【解析】a·μ＝1×(－1)＋1×0＋1×1＝0，得直线l 垂直于平面法向量，则直线l 在平面α内或直线l 与平面α平行． 6．A 【解析】错误！未找到引用源。

＝(错误！未找到引用源。

x 2＋cos x )|错误！未找到引用源。

＝错误！未找到引用源。

π2－1－1＝错误！未找到引用源。

－2. 7．C 【解析】由题意易知④中x 与z 负相关. 8．D 【解析】∵三个区域至少有一个安保小组，所以可以把5个安保小组分成三组，一种是按照1、1、3，另一种是1、2、2；当按照1、1、3来分时共有11335431322C C C A 60A N ==，当按照1、2、2来分时共有22135312322C C C A 90A N ==，根据分类计数原理知共有，故12150N N N =+=，选D ． 9．A【解析】由()(|)1()P AB P B A P A ==得()()P AB P A =即A B ⊆,画出可行域，=时，a 取得最大值，此时12a =. 10．A 【解析】∵由122AF AF a -=，∴12Rt AF F ∆内切圆半径为)212122122AF F F AF c ac a a +--==-=c ⇒=，∴离心率e ，故选A.11．C 【解析】由题可知6()26111148a b c ++=++=故8a b c ++=，所以,,a b c 得分只有5、2、1或4、3、1两种情况，又甲6场得26分，则只有5,2,1a b c ===这一种情况，且26555551=+++++，故A,B 均错，又乙在其中一场比赛中获得第一名，而甲有5场第一，所以D 错.而乙只能是11511112=+++++，故选C.12．B【解析】设函数()a x x x f +-=2332，则()()166'2-=-=x bx x x x f ，易得()x f 在()1,0上递减，在[)(]2,1,0,2-上递增，又()()()()a f a f a f a f +=+-==+-=-42,11,0,282 ，由图象可知a a +-≤≤+-1028或a a +≤<40，解得[)(]28,10,4 -∈a ，故选B.二、填空题 13．56- 14．21y x =-- 15．512B =π16．(1313)-，13．【解析】展开式通项为281631881()()(1)r r r r r rr T C x C x x--+=-=-，令1637r -=，3r =，所以7x 的338(1)56C -=-．故答案为56-． 14．【解析】当0x >时，0x -<，则()ln 3f x x x -=-．又因为()f x 为偶函数，所以()()ln 3f x f x x x =-=-，所以1()3f x x'=-，则切线斜率为(1)2f '=-，所以切线方程为32(1)y x +=--，即21y x =--． 15．【解析】因为A ，B 均为锐角，由()()sin cos A B A B -=+，得()()sin cos sin cos cos sin A B B A B B +=+ ∵cos sin 0B B +≠，∴sin cos A A =，则A 的大小为4π，又222cos cos sin sin sin B C A A B --=-，∴()()2221sin 1sin sin sin sin B C A A B ----=-，∴222sin sin sin sin sin C B A A B --=-，∴222a b c ab +-=-，∴1cos 2C =，∴3C π=，∴53412B ππ=π--=π． 16．【解析】1(3)(1)[1(13)](13)0.68262P P P P ξξξξ=-=--<<⇒-<<=≥≤11σ⇒-=-，13σ+=，因此2σ=，由题意，数形结合可知只需圆心(0，0)到直线的距离d 满足01d <≤即可．||13c d ==∵，0||13c <∴≤，即(1313)c ∈-，．三、解答题 17．解：（1）∵211(1),(), 5.n n nS n S n n n N a *+-+=+∈=∴111(1)(1),1,511n n n n S S SnS n S n n n n ++-+=+-==+ 3分数列{}n Sn是首项为5,公差为1的等差数列, 4分（2）25(1)4,4,n n Sn n S n n n=+-=+=+ 5分当2n ≥时,123,1n n n a S S n n -=-=+=时也符合, 故23,()n a n n *=+∈N 6分1111().(21)(23)22123n b n n n n ==-++++ 8分 11111111111()()23557212323236n T n n n =-+-+⋅⋅⋅+-=-<+++. 12分18．解：（1）由题意知，男性选出518330⨯=人，……………………2分女性选出512230⨯=人，共5人参与维持秩序，……………………4分所以选出2人担任招集人，求至少有一名女性的概率为11223225C C C 7C 10P +==……6分（2）由题意知，同意限定区域停车的12位女性家长中，选出参与维持秩序的女性家长人数为3人．随机变量ξ的所有可能取值为0，1，2，3，……………………7分所以39312C 21(0)C 55P ξ===，2193312C C 27(1)C 55P ξ===，……………………8分1293312C C 27(2)C 220P ξ===，33312C 1(3)C 220P ξ===，……………………9分因此ξ的分布列为分所以ξ的期望为21272713()012355552202204E ξ=⨯+⨯+⨯+⨯=．……………………12分19．（1）证明：由已知得EF //CD ，且=EF CD . 因为ABCD 为等腰梯形，所以有BG //CD . 因为G 是棱AB 的中点，所以=BG CD ．所以EF //BG ，且=EF BG ，故四边形EFBG 为平行四边形, 所以EG //FB . …………………………3分因为FB ⊂平面BDF ，EG ⊄平面BDF ，所以EG //平面BDF ．………………………………………5分解：（2）因为四边形CDEF 为正方形，所以ED DC ⊥. 因为平面CDEF ⊥平面ABCD ，平面CDEF平面ABCD DC =， DE ⊂平面CDEF ，所以ED ⊥平面ABCD . 在△ABD 中，因为60DAB ︒∠=，22AB AD ==，所以由余弦定理，得BD = 所以AD BD ⊥． ………………………………………………7分在等腰梯形ABCD 中，可得1DC CB ==.如图，以D 为原点，以DA DB DE ，，所在直线分别为,,x y z 轴，建立空间坐标系，………………8分则(0,0,0)D ，(1,0,0)A ，(0,0,1)E，B ，1(2F - ，所以(1,0,1)AE =- ，1(2DF =- ，DB = .设平面BDF 的法向量为(,,)x y z =n ，由00.DB DF ⎧⋅=⎪⎨⋅=⎪⎩，n n ……………9分所以0102x y z =⎨-+=⎪⎩，取1z =，则2,0x y ==，得(2,0,1)=n ．…………10分设直线AE 与平面BDF 所成的角为θ，则sin cos ,AE AE AE θ⋅=〈〉=⋅n n n= …………………………11分所以AE 与平面BDF . ……………………………12分 20．解：（1）设椭圆C 的标准方程为)0(12222>>=+b a by a x ．…………………………1分由已知可得222223114a b c ca ab ⎧=+⎪⎪⎪=⎨⎪⎪+=⎪⎩，…………………………………3分解得1,422==b a . ……………………………………4分故椭圆C 的标准方程为1422=+y x ……………………………5分（2）由已知，若直线l 的斜率不存在，则过点)0,1(-E 的直线l 的方程为1-=x ，此时令)23,1(),23,1(---B A ，显然EB EA 2=不成立．…………………6分若直线l 的斜率存在，则设直线l 的方程为)1(+=x k y …………………………7分则⎪⎩⎪⎨⎧+==+)1(1422x k y y x ，整理得0448)14(2222=-+++k x k x k .………………9分由01648)44)(14()8(22222>+=-+-=∆k k k k .设),(),,(2211y x B y x A ．故1482221+-=+k k x x ，①14442221+-=+k k x x .② 因为EB EA 2=，即3221-=+x x .③……………………………………10分①③联立解得615±=k ………………………………11分所以直线l 的方程为015615=++y x 或015615=+-y x（其它形式扣1分）……12分21．（1）()()()21111'()0x x a a x ax a f x x a x x x x--+--+-=+-==>，………2分令()()()110h x x x a =--+=，得11x =，21x a =-，…………3分当11a ->，即2a >时，在()0,1,()1,a -+∞上，()0f x '>，在()1,1a -上()0f x '<，此时，()f x 的增区间为()0,1,()1,a -+∞，减区间为()1,1a -；…………4分当11a -=，即2a =时，在()0,+∞上()0f x '>，此时，()f x 的增区间为()0,+∞；当011a <-<，即12a <<时，在()0,1,a -()1,+∞上()0f x '>，在()1,1a -上()0f x '<，此时，()f x 的增区间为()0,1,a -()1,+∞，减区间为()1,1a -；……5分当10a -≤，即1a ≤时，在()1,+∞上()0f x '>，在()0,1()0f x '<，此时，()f x 的增区间为()1,+∞上单增，减区间为()0,1.……………6分（2）21()ln ()ln 2g x x f x a x x ax =+=+- ， ()2()0a x ax ag x x a x x x-+'∴=+-=>，……………………7分()g x 有两个极值点12,x x ，12,x x ∴是方程()200x ax a x -+=>的两个不相等实根，∴240a a ∆=->，且12120,0x x a x x a +=>=>，…………………8分由()()()1212g x g x x x λ+<+，得221112221211(ln )(ln )()22a x x ax a x x ax x x λ+-++-<+，整理得 ()()()()212121212121ln 2a x x x x x x a x x x x λ++--+<+，………9分将1212,x x a x x a +==代入得 221ln 2a a a a a a λ+--<，因为4a >，所以1ln 12a a λ>--于是1ln 12a a λ>--对4a ∀>恒成立，…………………………………10分令()1ln 12a a a ϕ=--，则()()11'42a a a ϕ>->，………………11分所以 ()'0a ϕ<，()1ln 12a a a ϕ=--在()4,+∞单减，所以 ()ln421ln43a ϕ<--=-,因此 ln 43λ≥-………………………………………12分22．解析：（1）在曲线2C 上任取一点M ，设点M 的坐标为()M x y ，，则点1()2M x y '在曲线1C 上，满足221())12x y +=，所以曲线2C 的直角坐标方程为22143x y +=，曲线2C 的参数方程为2cosx y θθ=⎧⎪⎨⎪⎩（θ为参数）(亦可用1C 的参数方程得)………………5分（2）直线l 的直角坐标方程为l ：280x y +-=，设点(2cos )P θθ，点P 到直线l 的距离为|4sin()8|d πθ+-=，当3πθ=，即点P 的直角坐标为3(1)2，时，d 取.…………………………………………10分23．解：（1） |23|2313x x x x x x -<⇒-<-<⇒<<21,3=0.x mx n ∴-+是的两根10,4, 1.930, 3.m n m m n m n n -+==⎧⎧∴∴∴-=⎨⎨-+==⎩⎩ ……………………………5分（2）由（1）得1ab bc ac ++=，2222222222()222 2.222a b b c a c a b c a b c ab bc ac +++++=+++++=+++…7分222222,,222a b b c a c ab bc ac +++≥≥≥222222 1.222a b b c a c ab bc ac +++∴++≥++=2222222()2 3.222a b b c a c a b c +++∴++=+++≥（当且仅当3a b c ===时取等）a b c ∴++ …………………………10分。

河南省豫南九校高一下学期第三次联考英语试题 Word版

（考试时间：100分钟试卷满分：120分）第一卷第一部分听力（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，并在答题卡上将该项涂黑。

AIslands of Adventure at Universal Orlando in FloridaPeople say that it is the home of the “Harry Theme Park”. The Wizarding World is the most popular part of the park. Other popular rides include the Adventure of Spider-Man. People & Bluto’s Bilge-Rat Barges and the Jurassic Park River Adventure. It is open from Monday tSaturday.$15.95 for children, 3 to 13 years old; $29.95 for ages 14 and over.PI-Indoor Theme Park in LongueuilThe PI-O Indoor Theme Park features 16 rides, a small sea train, a kid-sized bowling alley, a mirror maze（迷宫）, theme rooms which include the Christmas room on-the-sea, and a private reception room.“I wanted to create a safe environment for kids aged 1 to 10,” explains owner Jocelyne Pinard. She noted how many competing amusement parks have sections that can be unsafe for young kids—such as the “ball rooms” full of loose plastic balls. So this is how it is different from other amusement parks.Open seven days a week. The admission fees are $16.99 for individuals（个人）and $64 for families.Legoland Windsor Theme Park in LondonLegoland Windsor is the best choice for young families. The park is designed for children from3 to 12. There are over 50 rides as well as live shows, workshops, and other attractions aimed at younger children, and especially those who are already fond of building-block（积木）toys.The park is open every single day. Adults: $35; Ages 3-15 and 60+: $26. Buy online and save$3 per person.Wonder La Theme Park in IndiaWonder La is a world-class amusement park. It’s modern, clean and green, and has all kinds of attractions. There are over 50 rides, 12 of which are water based and 9 especially for small children. If you love getting wet, don’t miss the Rain Disco-an indoor floor with a rain system that provides showers of warm water to the music. Monday to Friday 11 a.m. Until 6 p.m. Saturday, Holiday and Festival seasons 11 a.m. Until 7 p.m. Single adult/child-$13.50; Family ticket (for any four people)-$50.00; Children 3 and under-Free.21. If Jim free this Sunday, he can choose to visit the following parks EXPECT____.A. Islands of AdventureB. PI-OC. Legoland WindsorD. Wonder La22. How is PI-O Indoor Theme Park mainly different from other parks?A. It is much safer.B. It features more rides.C. It is much cheaper.D. It is offers more activities23. If a couple want to visit Legoland Windsor Theme Park with their 5-years-old son, how much do they need to pay when booking online?A. $70B. $87C. $93D. $9624. Which of the following about Wonder La Theme Park is NOT true?A. It is located in India.B. It is free for children of 3 and under.C. There are nine rides especially for small children.D. The Rain Disco lets children enjoy cool showers while dancing.BUSA Today is a national American daily newspaper published by the Gannett Company. It was founded by A1 Neuharth in 1982 with the goal of providing a national newspaper in the US market, where generally only a single local newspaper was available. The paper has the widest circulation（发行量）of any newspaper in the United States, averaging over 2.25 million copies every weekday. It was the first color newspaper in the United States.The newspaper was also among the first newspapers to use satellites to send the edition of the newspaper to different locations across the country for printing and distributing in thoseregional markets. This allowed the paper to include the most recent news and sports scores in each edition.Each edition of the newspaper consists of four sections: News, Money, Sports and Life. On Fridays, tow life sections are included: the regular life for movies subtitled Weekend, which features television, films and trends, and a travel supplement called Destinations & Diversions. Each section is denoted（表示）by a certain color to different sections, which is seen in a box on the top-left corner of the first page, with News being blue(section A), Money with green (section B), red for Sportd (section C), and purple for life (section D). USA Today prints each complete story on the front page of the respective（各自的）section with exception to the cover story. The cover story is a longer story that requires a jump (readers must turn to another page in the paper in the paper to complete the story, usually the very next page, page 2 of that section).Starting in February 2008, the newspaper added a magazine supplement（增刊）called Open Air, appearing several times a year.25. It can be inferred from the first paragraph that USA Today____.A. Developed from a famous America local newspaperB. Was founded to cover world storiesC. Was among the first color newspapers in the worldD. Does not print on Saturdays or Sundays26. Which of the following is TRUE about USA Today?A. It uses satellites to print color copy.B. It is the cheapest daily newspaper in the United States.C. It offers readers the latest news.D. It is the first international newspaper in the United States.27. Mr. Watts wants to get the most recent travel information. He will turn to____.A. Section AB. section BC. section CD. section DCBreakfast is the most important meal of the day. It is also the most neglected（忽视）.Common reason for not eating breakfast include having no time, not feeling hungry, traditional dislike and dieting.Breakfast simply means “break the fast”. Your body spends at least 6 to 12 hours each night in a fasting state. In the morning y our body needs energy for the day’s work ahead.A good breakfast should provide 1/3 of your total calorie（卡路里）needs for the day. On average,we eat 400 less calories for breakfast than for dinner. If breakfast doesn’t attract you in the morning, try eating a lighter dinner earlier in the evening or save half of your dinner for breakfast in the morning.Some people fear that eating breakfast will make them hungrier during the day and they will eat more. It is true that eating breakfast is likely to make feel hungry throughout the day. That is because your body id working correctly. Although you may feel as if you are eating more all day long, in reality you are probably not. Not eating breakfast can also cause you to overeat, since a fall in blood sugar often makes you feel very hungry later.Since breakfast is the first and most important meal of the day, choosing the right food is important, the best breakfast foods are fruits, juice, lean meat and grain products such as bread, rice, noodles and cereals（谷物）.28. Which meal is the most neglected according to the passage?A. Supper.B. Lunch.C. breakfast.D. dinner.29. Which is not the reason for people to miss breakfast?A. A bigger meal in the mid-morning.B. Feeling full in the morning.C. The fast pace of modern life.D. Have a little supper.30. The best title for this article is_____.A. Diet and Breakfast.B. Breakfast: Well Begin, Half Done.C. What is a Good BreakfastD. Bad Eating Habits of Modern PeopleDIt is widely acknowledge that cities with some kind of functioning ecosystems make for better place for humans to live. More plants and animals in cities make for happier, healthier people.A study conducted on green spaces in Sheffield, England, for instance, revealed that the greater the biodiversity（生物多样性）, the greater the psychological well-being（健康）of thecity’s citizens. In Paris, researchers found that getting citizens to take part in day-long activities involving urban wildlife opened their eyes to the natural world for a time, at least.Few cities have been associated with urban ecology for as Berlin. “Slow economic recovery after the Second World War meant that reconstruction would take a long time. This provide local ecologist with the ideal conditions to develop an ambitious ecological research program in the bombed-out wastelands of West Berlin,” said Jens Lachmund, a sociologist at the University of Maastricht in the Netherlands.The pioneering work in Berlin had several consequences, especially the formation of significant natural spaces within the city, such as the Sudgelande Nature. “Berlin has indeed benefited a lot from being a case study in urban ecology,” said Lachmund.The recent research conducted by Mark Goddard, a biologist at the University of Leeds, and his colleagues confirmed the important of natural space within an urban setting. Goddard and his team conducted a striking global analysis of bird and plant diversity, quantifying the influence of urbanization on levels of biodiversity around the w orld. “Functioning urban ecosystems will be extremely important to human health and well-being,” said Goddard.Cities take up just 3% of the land surface area, yet according to the most recent figure from the United Nations, some 3.6 billion people (just over 50% of the global population) now live in urban areas. By 2050, this figure is expected it rise to 6.3 billion. Without animals and plants to keep us company, it is a dark future.32. The findings in Paragraph 2 are mentioned to explain the between_____.A. citizens and their well-beingB. green spaces and urban wildlifeC. Urban ecology and citizens’ well-beingD. Functioning ecosystems and the natural world33. What would be Goddard’s attitude towards Berlin’s work?A. Cautious.B. Negative.C. Uncaring.D. Admiring.34. The author uses figures in the last paragraph to show______.A. The negative effect of over population.B. The important of urban ecosystems.C. The serious problems of city life.D. The rapid growth of urban areas.35. Which of the following can be the best text?A. Should more people live in urban areas?B. Should Berlin have more natural spaces?C. Should cities be for animals and plants too?D. Should the global population be controlled now?第二解（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。

河南省豫南九校联盟2016届高三下学期第一次联英语试题(含答案)

豫南九校2015—2016学年下期第一次联考高三英语试题组题审核：豫南九校联谊试题研究中心组（考试时间：110分钟试卷满分：120分）注意事项；1．本试题卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。

2．答第Ⅰ卷前，考生务必将条形码和自己的姓名、准考证号、考试科目涂写在答题卡上。

3．每小题选出答案后，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，再选涂其它答案标号。

不能答在试卷上。

第Ⅰ卷第一部分听力（略）第二部分阅读理解（共两节，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。

AWhen you are traveling, it’s vital to know about the customs and etiquette（礼仪，礼节）of the global village. What we consider polite behavior at home isn’t always accepted outside our borders.● Etiquette of Gift GivingGift giving should be a happy, positive experience. When selecting a present for someone in Netherlands, don’t purchase fancy kitchen knives or scissors. Giving sharp, pointy objects as gifts is considered unlucky. Be careful when presenting flowers to a friend or a business partner in Russia. Yellow blooms suggest cheat or a relationship break up. Traditionally, red carnations are placed on the tombs of the dead. Writing cards or notes while visiting South K orea, be mindful of your pen’s ink color. Writing a person’s name in red ink traditionally suggests that the person has passed away—an important point to remember when giving a birthday card.● Eating CustomsBeing early or on time is viewed as being rude, too eager or even greedy in Venezuela. If you are invited to someone’s home for a meal, it’s recommended that you arrive 10 minutes later than the requested time. When having a meal in Egypt, don’t use the salt shaker （盐瓶）. It’s insulting to your host to spread salt on your food, which means that you find the meal terrible. Japan is a very polite nation, and their fondness for etiquette extends to the use of chopsticks. According to Japanese custom, if you’re in the middle of eating, use the opposite end of your chopsticks to secure food from a shared plate. When doing business in Turkey, it’s the custom for your host to pay for your meal. Requests to split the bill won’t be accepted. If you would like to pay your fair share, Turks recommend inviting your host to a follow-up meal.21. Which of the following is tree according to the passage?A. You can use blue ink to write notes to your friend from South Korea.B. Giving a fancy kitchen knife to a friend from Russia is a good choice.C. Dining with Japanese, one can use either end of the chopsticks to get food from sharedplates.D. Invited to a meal, one should arrive earlier to show respect for the host.22. What does the underlined word “insulting” in Paragraph 3 refer to?A. Respectful.B. OffensiveC. Indifferent.D. Challenging.23. where is this passage probably from?A. A news report.B. A culture column.C. A travel essay.D. A food magazine.BI live in Hollywood. You may think people in such an attractive, fun—filled place are happier than others. If so, you have some mistaken ideas about the nature of happiness.Many intelligent people still equate happiness with fun. The troth is that fun and happiness have little or nothing in common. Fun is what we experience during an act. Happiness is what we experience after an act. It is a deeper, more long—lasting emotion. Going to an amusement park or ball game, watching a movie or television, are fun activities that help us relax, temporarily forget our problems and maybe even laugh. But they do not bring happiness, because their positive effects end when the fun ends.I have often thought that if Hollywood stars have a role to play, it is to teach us that happiness has nothing to do with fun. These rich, beautiful individuals have constant access to exciting parties, fancy cars, expensive homes, everything that spells “happiness”. But in memoir（回忆录）after memoir, celebrities reveal the unhappiness hidden beneath all their fun: depression, alcoholism, drag addiction, broken marriages, troubled children, and long—time loneliness. The way people hold on to the belief that a fun—filled, pain—free life equates happiness actually decreases their chances of ever attaining real happiness. If fun and pleasure are equated with happiness, then pain must be equated with unhappiness. But, in fact, the opposite is tree: More times than not, things that lead to happiness involve some pain.As a result, many people avoid the very efforts that are the source of tree happiness. They fear the pain inevitably brought by such things as marriage, raising children, professional achievement, religious commitment, charitable work and self—improvement.24. According to the passage, “fun activities” ________.A. are the things we do before we find happinessB. may help us relax and forget our problems sometimesC. will lead us to the tree happinessD. could provide long—last positive effects25. In the author’s opinion, those Hollywood stars ________.A. possess happiness because they are rich and famousB. experience almost all kinds of happy thingsC. tell us happiness isn’t equal to fun using their own storiesD. have to suffer a lot before they become successful26. It is difficult for people to find real happiness because ________.A. they believe happiness is the fun life without painB. they find pain equals unhappinessC. they fear to lose what they already have in lifeD. they are afraid all their efforts were in vain27. The main purpose of the text is to ________.A. describe the difference between happiness and funB. show the true meaning of happinessC. encourage people to pursue fun activitiesD. advise people to find their real lifeCTiny monitoring devices have become an increasingly common way for scientists to study elusive animals that are difficult to track on a day-to-day basis. However, now it seems that smart. seals have caught on to the trick and are using it to their advantage to catch fish!To find out if that is true, a team of researchers from the University of St. Andrews in Scotland selected a group often young grey seals that had neither encountered the ocean nor been exposed to any kind of acoustic（声音的）tags. The researchers then placed the seals one at a time, inside a pool that contained 20 foraging boxes, only two of which housed fish — one with tags and the other without.Each seal was allowed to explore the boxes twenty separate times. In order to ensure that mammal was not depending on its memory, the fish were moved to different boxes each time. At first, there was no difference in the amount of time it took the seals to discover the tagged and untagged fish. However, after they had been in the pool a few times, they started locating the tagged fish much faster.To confirm that this indeed was the case, there searchers conducted a second experiment using two boxes —one with pieces of fish and the other with just acoustic tags. Sure enough, the seals were all attracted to the one that was sending out signals.While this experiment involved only seals, the researchers believe that other marine mammals may also be using the information to catch prey. Sadly, predators like sharks that have been tagged by scientists may be negatively affected, as pings they emit could warn their prey of their presence. Besides potentially messing up nature’s food chain, the “dinner bell” effect of the acoustic tags could also mean that the conclusions reached by previous fish studies may not be correct. Now that the secret is out, scientists will have to come up with another way to conduct their studies — one that is not detectable by the crafty marine animals.28. What does the underlined part “the trick” in Paragraph 1 refer to?A. Attaching tiny monitoring devices to sea animals.B. Following the sound that fish make.C. Tracking sea animals on a day-to-day basis.D. Looking for ways to catch fish.29. What is implied about the ten young grey seals?A. They have acoustic tags attached to them.B. They have better hearing than normal seals.C. They have been trained to recognize acoustic tags.D. They were not born in the ocean.30. After doing the two experiments the researchers most probably concluded that ________.A. it’s really easy for seals to find their preyB. seals can be easily fooled by acoustic tagsC. seals are much cleverer than most of the other sea animalsD. seals can really make use of the acoustic signals to prey31. The researchers seem to believe that sharks tagged by scientists ________.A. may benefit from the tagsB. may attract seals by mistakeC. may find it hard to find preyD. may be annoyed by the emitted pingsDHey, ladies! It’s summer again and it’s time for a new you! No more make-up, no more pretending! Yes, that’s right! It’s time to stop making ourselves beautiful for the camera, and start posting confident pictures without all the make-up and extra tricks we add onto ourselves in the hope of appearing more attractive and beautiful. Because believe it or not, we already are!After we wash our face and go to bed, it is not so perfect. You know it the face we should confidently be showing to the world! Who cares if you have pimples（面痕）or your eyes look small, or if you have crow’s feet? Guess what? Those are actually what make you such a beautifully grown woman. And any person who doesn’t think so is just not as strong as you.Nowadays we are so prone to do anything and everything to make us look as young and perfect as possible. Yet the troth is, by doing this, we are actually making our tree skin get worse and badly affected by all the junk we put on. We are making ourselves believe that by changing our appearance we will be more accepted and seem more attractive to other people. And yet, our final goal is to find that without all of the make-up. What kind of twisted（扭曲的）game are we really playing with ourselves?So I would like to make a suggestion for all women out there to give yourself a break at least this summer. Take a couple of pictures without all of that make-up on. You don’t need it every single day, especially not this hot summer! You’ll be surprised that the more confident you are about showing the real side of you, the more attractive you will be to everyone else.Yes, the saying, “Beauty comes from within” is an old one, definitely still holds some troth today. So be brave, carefree, and make-up free! Let the world see you for who you really are!32. The author thinks that ladies should show others _______.A. their crow’s feetB. their beautiful picturesC. their real face with confidenceD. their attractive appearance33. What does the author think of adding make-up to our face?A. It makes perfect images.B. It’s really meaningless.C. It makes true images go outdated.D. It’s hard to achieve what we wish.34. What is the author’s purpose of quoting the old saying?A. To declare it’s what one really is that ma tters.B. To show the importance of adding make-upC. To give us some examples of adding make-up.D. To tell us not to neglect those old sayings.35. What is the topic of this text?A. Spending more time being with families and friends.B. Not putting on any make-up on our face this summer.C. Paying enough attention to ourselves in this summer.D. Showing the beautiful side of ourselves to others.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。

河南省豫南九校2016-2017学年高二下学期第三次联考英语试题扫描版含答案

豫南九校2016—2017学年下期第三次联考英语参考答案阅读理解1-3 CBD 4-7 CDDA 8-11 BDCD11-15 DBCB 16-20 DBGAF完型填空21-25 DBCAD 26-30 BADCA31-35 ACBDC 36-40 BDBCA语法填空41. located 42. until 43. European 44. up 45. are combined46. making 47. where 48. If 49. a 50. themselves短文改错1. picked后∧up2. quick→quickly3. 去掉front前的the4. elder→elderly5. paid→paying6. works→work7. And→But 8. take→taking9. Because→As/When/While 10. with→from书面表达Dear Peter,Words are really not enough to express my gratitude to you for your timely gift for my birthday – a copy of the Oxford Advanced Learner’s English-Chinese Dictionary.There are many reasons why I refer to it as a timely gift. Firstly, I’m preparing a speech for the 21st Century Cup National High School English Speaking Competition in six weeks. Furthermore, although I already had an English-Chinese dictionary, it only has Chinese explanations. This new dictionary features explanations in both Chinese and Eng lish. In addition, it’s known that the Oxford Advanced Learner’s English-Chinese Dictionary places emphasis on more modern English words than others do.When your birthday comes, I hope I can return the favor by giving you such a valuable and thoughtful present too.With sincerest thanksLi Hua。

河南省豫南九校2016-2017学年高一下学期期中联考英语试题含答案

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，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，并在答题卡上将该项涂黑。

AWe will be traveling to the Presidio in San Francisco to visit the newly opened Walt Disney Family Museum。

Your whole family will be fascinated by over 1,400 works of art featuring Disney characters. There are countless exhibits and even a model of the early Disneyland Park。

We will have a timed entry into the museum, and then each family is free to explore at their leisure。

Lunch will be on your own. So bring your lunch or money for the Museum Restaurant。

The Walt Disney Family Museum is a must—see for everyone who loves Disney。

Date: July 22, 2011Time: 9：00 am to 4：00pmLocation：Presidio, San FranciscoCost per person：$35。

00 for adults，＄25.00 for young people of 6-17 years old and seniors over 65 years old, and $10。