河南省洛阳市2017-2018学年高二下学期期中考试 英语 扫描版含答案

平山中学2017-2018学年春季高二年级期中考试英语科试卷注意事项：1. 本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。

2. 答题前，考生务必将自己的姓名、准考证号填写在答题卡相应的位置。

3. 全部答案在答题卡上完成，答在本试卷上无效。

第Ⅰ卷第一部分：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。

l. What does Wendy do now?A. A cleaner.B. A teacher.C. A businesswoman.2. How much is the camera now?A.＄230.B.＄280.C.＄300.3. What are the speakers talking about?A. Who will go to the museum.B. When they will go to museum.C. Whether their father will work this week.4．Where does the conversation take place?A. At the man’s home.B. At an airport.C. At a hotel.5. What is the woman doing?A. Taking a taxi.B. Giving the man a lift.C. Driving to Times Square.第二节（共15小题；每小题1 5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

2017-2018学年河南省洛阳市高二（上）期中数学试卷一、选择题：本大题共12小题，每小题5分，共60分．在每小题给出的四个选项中，只有一项是符合题目要求的.1．（5分）已知集合A={x|x2﹣x﹣6＜0}，B={x|x2+2x﹣8＞0}，则A∪B=（）A．{x|2＜x＜3}B．{x|﹣2＜x＜3}C．{x|x＞﹣4或x＞2}D．{x|x＜﹣4或x ＞﹣2}2．（5分）△ABC中，==，则△ABC一定是（）A．直角三角形B．钝角三角形C．等腰三角形D．等边三角形3．（5分）若a，b，c∈R，且a＞b，则下列不等式一定成立的是（）A．＞0 B．（a﹣b）c2＞0 C．ac＞bc D．a+c≥b﹣c4．（5分）在等比数列{a n}中，a n＞0，已知a1=6，a1+a2+a3=78，则a2=（）A．12 B．18 C．24 D．365．（5分）设正实数a，b满足2a+3b=1，则的最小值是（）A．25 B．24 C．22 D．166．（5分）海中有一小岛，海轮由西向东航行，望见这岛在北偏东75°，航行8n mile以后，望见这岛在北偏东60°，海轮不改变航向继续前进，直到望见小岛在正北方向停下来做测量工作，还需航行（）n mile．A．8 B．4 C．D．7．（5分）设等差数列{a n}的公差d≠0，且a2=﹣d，若a k是a6与a k+6等比中项，则k=（）A．5 B．6 C．9 D．368．（5分）若函数f（x）=的定义域是R，则实数a的取值范围是（）A．（﹣2，2）B．（﹣∞，﹣2）∪（2，+∞）C．（﹣∞，﹣2]∪[2，+∞）D．[﹣2，2]9．（5分）已知△ABC的内角A、B、C的对边分别为a、b、c．若a=bcosC+csinB，且△ABC的面积为1+．则b的最小值为（）A．2 B．3 C．D．10．（5分）设等差数列{a n}的前n项和为S n，S15＞0，a8+a9＜0，则使＜0成立的最小自然数n的值为（）A．15 B．16 C．17 D．1811．（5分）在平而直角坐标系中，不等式组表示的平面区域面积为π，若x，y满足上述约束条件，则z=的最小值为（）A．﹣1 B．C．D．12．（5分）已知数列{a n}中，a1=2，若a n+1﹣a n=a n2，设T m=，若T m＜2018，则正整数m的最大值为（）A．2019 B．2018 C．2017 D．2016二、填空题：本题共4个小题，每小题5分，共20分．x＜0|2＜x＜3}B.{x|-2＜x＜3}C.{x|x＞13．（5分）不等式组表示的平面区域内的整点坐标是．14．（5分）已知△ABC的内角A，B，C的对边分别为a，b，c，若a=2且sinA+cosA=2，则角C的大小为．15．（5分）如图所示，在圆内接四边形ABCD中，AB=6，BC=3，CD=4，AD=5，则四边形ABCD的面积为．16．（5分）已知数列{a n}中，a1=l，S n为其前n项和，当n≥2时，2a n+S n2=a n S n成立，则S10=．三、解答题：本大题共6个小题，共70分．解答应写出文字说明、证明过程或盐酸步骤．17．（10分）在△ABC中，角A，B，C所对的边分别为a，b，c，已知a2+c2﹣b2=﹣ac．（1）求B；（2）若，，求a，c．18．（12分）已知方程x2+2（a+2）x+a2﹣1=0．（1）当该方程有两个负根时，求实数a的取值范围；（2）当该方程有一个正根和一个负根时，求实数a的取值范围．19．（12分）已知{a n}是各项均为正数的等比数列，且a1+a2=6，a1a2=a3．（1）求数列{a n}的通项公式；（2）{b n}为各项非零的等差数列，其前n项和S n=n2，求数列的前n项和T n．20．（12分）某市园林局将一块三角形地块ABC的一个角AMN建设为小游园，已知A=120°，AB，AC的长度均大于400米，现要在边界AM，AN处建设装饰墙，沿MN建设宽1.5米的健康步道．（1）若装饰墙AM，AN的总长度为400米，AM，AN 的长度分别为多少时，所围成的三角形地块AMN的面积最大？（2）若AM段装饰墙墙髙1米，AN段装饰墙墙髙1.5米，AM段装饰墙造价为每平方米150元，AN段装饰墙造价为每平方米100元，建造装饰墙用了90000元．若建设健康步道每100米需5000元，AM，AN的长度分别为多少时，所用费用最少？21．（12分）已知△ABC为锐角三角形，角A，B，C的对边分别为a，b，c且（b2+c2﹣a2）tanA=bc．（1）求角A的大小；（2）若a=，求2b﹣c的取值范围．22．（12分）设数列{a n}的前n项和为S n，且S n=4﹣a n﹣．（1）令b n=2n﹣1•a n，证明数列{b n}为等差数列，并求{b n}的通项公式；（2）是否存在n∈N*，使得不等式成立，若存在，求出λ的取值范围，若不存在，请说明理由．2017-2018学年河南省洛阳市高二（上）期中数学试卷参考答案与试题解析一、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．（5分）已知集合A={x|x2﹣x﹣6＜0}，B={x|x2+2x﹣8＞0}，则A∪B=（）A．{x|2＜x＜3}B．{x|﹣2＜x＜3}C．{x|x＞﹣4或x＞2}D．{x|x＜﹣4或x ＞﹣2}【分析】解不等式得出集合A、B，根据并集的定义写出A∪B．【解答】解：集合A={x|x2﹣x﹣6＜0}={x|（x+2）（x﹣3）＜0}={x|﹣2＜x＜3}，B={x|x2+2x﹣8＞0}={x|（x+4）（x﹣2）＞0}={x|x＜﹣4或x＞2}，则A∪B={x|x＜﹣4或x＞﹣2}．故选：D．【点评】本题考查了解不等式与集合的运算问题，是基础题．2．（5分）△ABC中，==，则△ABC一定是（）A．直角三角形B．钝角三角形C．等腰三角形D．等边三角形【分析】由，利用正弦定理可得tanA=tanB=tanC，再利用三角函数的单调性即可得出．【解答】解：由正弦定理可得：=，又，∴tanA=tanB=tanC，又A，B，C∈（0，π），∴A=B=C=，则△ABC是等边三角形．故选：D．【点评】本题考查了正弦定理、三角函数的单调性，考查了推理能力与计算能力，属于中档题．3．（5分）若a，b，c∈R，且a＞b，则下列不等式一定成立的是（）A．＞0 B．（a﹣b）c2＞0 C．ac＞bc D．a+c≥b﹣c【分析】对于A，根据不等式的性质即可判断，举反例即可判断B，C，D【解答】解：A、∵a﹣b＞0，c2＞0，∴＞0B、∵a﹣b＞0，∴（a﹣b）2＞0，又c2≥0，∴（a﹣b）2c≥0，本选项不一定成立，C、c=0时，ac=bc，本选项不一定成立；D、当a=﹣1，b=﹣2，c=﹣3时，a+c=﹣4，b﹣c=1，显然不成立，本选项不一定成立；故选A【点评】此题考查了不等式的性质，利用了反例的方法，是一道基本题型．4．（5分）在等比数列{a n}中，a n＞0，已知a1=6，a1+a2+a3=78，则a2=（）A．12 B．18 C．24 D．36【分析】先求出公比q，即可求出答案．【解答】解：设公比为q，由a1=6，a1+a2+a3=78，可得6+6q+6q2=78，解得q=3或q=﹣4（舍去），∴a2=6q=18，故选：B【点评】本题考查了等比数列的通项公式，属于基础题．5．（5分）设正实数a，b满足2a+3b=1，则的最小值是（）A．25 B．24 C．22 D．16【分析】直接利用函数的关系式及均值不等式求出函数的最小值．【解答】解：正实数a，b满足2a+3b=1，则=（2a+3b）（）=+9≥13+12=25，故的最小值为25．故选：D．【点评】本题考查的知识要点：函数的关系式的恒等变换，均值不等式的应用．6．（5分）海中有一小岛，海轮由西向东航行，望见这岛在北偏东75°，航行8n mile以后，望见这岛在北偏东60°，海轮不改变航向继续前进，直到望见小岛在正北方向停下来做测量工作，还需航行（）n mile．A．8 B．4 C．D．【分析】作出示意图，根据等腰三角形锐角三角函数的定义即可求出继续航行的路程．【解答】解：设海岛位置为A，海伦开始位置为B，航行8n mile后到达C处，航行到D处时，海岛在正北方向，由题意可知BC=8，∠ABC=15°，∠BCA=150°，∠ADC=90°，∠ACD=30°，∴∠BAC=15°，∴AC=BC=8，∴CD=AC•cos∠ACD=4．故选C．【点评】本题考查了解三角形的应用，属于基础题．7．（5分）设等差数列{a n}的公差d≠0，且a2=﹣d，若a k是a6与a k+6等比中项，则k=（）A．5 B．6 C．9 D．36【分析】运用等差数列的通项公式，以及等比数列的中项的性质，化简整理解方程即可得到k的值．【解答】解：等差数列{a n}的公差d≠0，且a2=﹣d，可得a1=a2﹣d=﹣2d，则a n=a1+（n﹣1）d=（n﹣3）d，若a k是a6与a k+6的等比中项，即有a k2=a6a k+6，即为（k﹣3）2d2=3d•（k+3）d，由d不为0，可得k2﹣9k=0，解得k=9（0舍去）．故选：C．【点评】本题考查等差数列的通项公式和等比数列中项的性质，考查化简整理的运算能力，属于基础题．8．（5分）若函数f（x）=的定义域是R，则实数a的取值范围是（）A．（﹣2，2）B．（﹣∞，﹣2）∪（2，+∞）C．（﹣∞，﹣2]∪[2，+∞）D．[﹣2，2]【分析】要使函数有意义，则2﹣1≥0，解得即可．【解答】解：要使函数有意义，则2﹣1≥0，即x2+ax+1≥0，∴△=a2﹣4≤0，解得﹣2≤a≤2，故选：D【点评】本题考查了函数的定义域和不等式的解法，属于基础题．9．（5分）已知△ABC的内角A、B、C的对边分别为a、b、c．若a=bcosC+csinB，且△ABC的面积为1+．则b的最小值为（）A．2 B．3 C．D．【分析】已知等式利用正弦定理化简，再利用诱导公式及两角和与差的正弦函数公式化简，求出tanB的值，确定出B的度数，利用三角形面积公式求出ac的值，利用余弦定理，基本不等式可求b的最小值．【解答】解：由正弦定理得到：sinA=sinCsinB+sinBcosC，∵在△ABC中，sinA=sin[π﹣（B+C）]=sin（B+C），∴sin（B+C）=sinBcosC+cosBsinC=sinCsinB+sinBcosC，∴cosBsinC=sinCsinB，∵C∈（0，π），sinC≠0，∴cosB=sinB，即tanB=1，∵B∈（0，π），∴B=，=acsinB=ac=1+，∵S△ABC∴ac=4+2，由余弦定理得到：b2=a2+c2﹣2accosB，即b2=a2+c2﹣ac≥2ac﹣ac=4，当且仅当a=c时取“=”，∴b的最小值为2．故选：A．【点评】此题考查了正弦、余弦定理，基本不等式以及三角形的面积公式，熟练掌握定理及公式是解本题的关键，属于中档题．10．（5分）设等差数列{a n}的前n项和为S n，S15＞0，a8+a9＜0，则使＜0成立的最小自然数n的值为（）A．15 B．16 C．17 D．18【分析】由于S15==15a8＞0，a8+a9＜0，可得a8＞0，a9＜0，进而得出．【解答】解：∵S15==15a8＞0，a8+a9＜0，∴a8＞0，a9＜0，∴S16==8（a8+a9）＜0，则使＜0成立的最小自然数n的值为16．故选：B．【点评】本题考查了等差数列的通项公式与求和公式及其性质、不等式的性质，考查了推理能力与计算能力，属于中档题．11．（5分）在平而直角坐标系中，不等式组表示的平面区域面积为π，若x，y满足上述约束条件，则z=的最小值为（）A．﹣1 B．C．D．【分析】由约束条件作出可行域，由z==1+，而的几何意义为可行域内的动点与定点P（﹣3，2）连线的斜率．结合直线与圆的位置关系求得答案．【解答】解：∵不等式组（r为常数）表示的平面区域的面积为π，∴圆x2+y2=r2的面积为4π，则r=2．由约束条件作出可行域如图，由z==1+，而的几何意义为可行域内的动点与定点P（﹣3，2）连线的斜率．设过P的圆的切线的斜率为k，则切线方程为y﹣2=k（x+3），即kx﹣y+3k+2=0．由=2，解得k=0或k=﹣．∴z=的最小值为1﹣=﹣．故选：C．【点评】本题考查简单的线性规划，考查了数形结合的解题思想方法和数学转化思想方法，是中档题．12．（5分）已知数列{a n}中，a1=2，若a n+1﹣a n=a n2，设T m=，若T m＜2018，则正整数m的最大值为（）A．2019 B．2018 C．2017 D．2016=a n2+a n=a n（a n+1）≥6，推导出=，从而【分析】a n+1，进而T m=m﹣（﹣）＜m﹣，由此能求出正整数m的最大值．【解答】解：由a n﹣a n=a n2，得a n+1=a n2+a n=a n（a n+1）≥6，+1∴=，∴=﹣，∴++…+=（﹣）+（﹣）+…+（﹣）=﹣∈（0，），∵，∴T m==m﹣（﹣）=m﹣+＜m﹣+=m﹣∵T m＜2018，∴m﹣＜2018，∴m＜2018+∴正整数m的最大值为2018，故选：B【点评】本题考查了数列递推关系、放缩法，考查了推理能力与计算能力，属于中档题．二、填空题：本题共4个小题，每小题5分，共20分．x＜0|2＜x＜3}B.{x|-2＜x＜3}C.{x|x＞13．（5分）不等式组表示的平面区域内的整点坐标是（﹣1，1）．【分析】先根据不等式组画出可行域，再验证哪些当横坐标、纵坐标为整数的点是否在可行域内．【解答】解：根据不等式组画出可行域如图：由图象知，可行域内的点的横坐标为整数时x=﹣1，纵坐标可能为﹣1或﹣2即可行域中的整点可能有（﹣1，1）、（﹣1，2），经验证点（﹣1，1）满足不等式组，（﹣1，2）不满足不等式组，∴可行域中的整点为（﹣1，1），故答案为：（﹣1，1），【点评】本题考查一元二次不等式表示的区域，要会画可行域，同时要注意边界直线是否能够取到，还要会判断点是否在可行域内（点的坐标满足不等式组时，点在可行域内）．属简单题．14．（5分）已知△ABC的内角A，B，C的对边分别为a，b，c，若a=2且sinA+cosA=2，则角C的大小为．【分析】利用三角恒等变换求出A，再利用正弦定理得出C．【解答】解：∵sinA+cosA=2，即2sin（A+）=2，∵0＜A＜π，∴A+=，即A=，由正弦定理得：，即，∴sinC=，∴C=或C=（舍）．故答案为：．【点评】本题考查了正弦定理，属于基础题．15．（5分）如图所示，在圆内接四边形ABCD 中，AB=6，BC=3，CD=4，AD=5，则四边形ABCD 的面积为 6．【分析】利用余弦定理可求BD 2=5﹣4cosA=25+24cosA ，解得cosA=，结合范围0＜A ＜π，利用同角三角函数基本关系式可求sinA ，利用三角形面积公式即可计算得解．【解答】解：∵四边形ABCD 圆内接四边形， ∴∠A +∠C=π，∵连接BD ，由余弦定理可得BD 2=AB 2+AD 2﹣2AB•AD•cosA=36+25﹣2×6×5cosA=61﹣60cosA ， 且BD 2=CB 2+CD 2﹣2CB•CD•cos （π﹣A ） =9+16+2×3×4cosA=25+24cosA ， ∴61﹣60cosA=25+24cosA ， ∴cosA= 又0＜A ＜π， ∴sinA=．∴S 四边形ABCD =S △ABD +S △CBD =AB•AD•sinA +CD•CB•sin （π﹣A ）=×6×5×+×3×4×=6，故答案为：6【点评】本题主要考查了余弦定理，同角三角函数基本关系式，三角形面积公式的应用，考查了转化思想和数形结合思想的应用，属于中档题．16．（5分）已知数列{a n}中，a1=l，S n为其前n项和，当n≥2时，2a n+S n2=a n S n成立，则S10=．S n=S n﹣1﹣S n，可得数列{}是首项为1，公差为的等【分析】由已知得S n﹣1差数列，从而能求【解答】解：∵2a n+S n2=a n S n，∴S n2=a n（S n﹣2），a n=S n﹣S n﹣1（n≥2），∴S n2=（S n﹣S n﹣1）（S n﹣2），S n=S n﹣1﹣S n，…①即S n﹣1•S n≠0，由题意S n﹣1•S n，得﹣=，将①式两边同除以S n﹣1∵a1=l，∴=1∴数列{}是首项为1，公差为的等差数列，∴=1+（n﹣1）=（n+1）∴S n=，∴S10=，故答案为：【点评】本题考查数列的递推公式和前n项和，属于中档题三、解答题：本大题共6个小题，共70分．解答应写出文字说明、证明过程或盐酸步骤．17．（10分）在△ABC中，角A，B，C所对的边分别为a，b，c，已知a2+c2﹣b2=﹣ac．（1）求B；（2）若，，求a，c．【分析】（1）直接利用关系式的恒等变换，转化为余弦定理的形式，进一步求出B的值．（2）利用正弦定理已知条件求出结果．【解答】解：（1）△ABC中，角A，B，C所对的边分别为a，b，c，已知a2+c2﹣b2=﹣ac．则：，由于：0＜B＜π，解得：B=．（2）由于，所以：a=2c，由及a2+c2﹣b2=﹣ac．得到：a2+c2+ac=7．解得：a=2，c=1．【点评】本题考查的知识要点：余弦定理的应用，正弦定理的应用．18．（12分）已知方程x2+2（a+2）x+a2﹣1=0．（1）当该方程有两个负根时，求实数a的取值范围；（2）当该方程有一个正根和一个负根时，求实数a的取值范围．【分析】（1）当方程有两个负根时，利用判别式△≥0和根与系数的关系求出a的取值范围；（2）根据方程有一个正根和一个负根时，对应二次函数满足f（0）＜0，由此求出实数a的取值范围．【解答】解：方程x2+2（a+2）x+a2﹣1=0的判别式为△=4（a+2）2﹣4（a2﹣1）=16a+20，当△=16a+20≥0时，设方程x2+2（a+2）x+a2﹣1=0两个实数根为x1、x2，则x1+x2=﹣2（a+2），x1x2=a2﹣1；（1）∵方程x2+2（a+2）x+a2﹣1=0有两个负根，∴，解得，即a＞1或﹣≤a＜﹣1，∴实数a的取值范围是[﹣，﹣1）∪（1，+∞）；（2）∵方程x2+2（a+2）x+a2﹣1=0有一个正根和一个负根，∴对应二次函数满足f（0）=a2﹣1＜0，解得﹣1＜a＜1，∴实数a的取值范围是（﹣1，1）．【点评】本题考查了一元二次方程根的分布情况以及判别式和根与系数的关系应用问题，是中档题．19．（12分）已知{a n}是各项均为正数的等比数列，且a1+a2=6，a1a2=a3．（1）求数列{a n}的通项公式；（2）{b n}为各项非零的等差数列，其前n项和S n=n2，求数列的前n项和T n．【分析】（1）设数列{a n}的公比为q，（q＞0），由题意列方程组求得首项和公比，则数列{a n}的通项公式可求；（2）由{b n}的前n项和求得通项，代入，然后利用错位相减法求其前n项和T n．【解答】解：（1）设数列{a n}的公比为q，（q＞0），由a1+a2=6，a1a2=a3，得，解得a1=q=2．∴；（2）当n=1时，b1=S1=1，当n≥2时，b n=S n﹣S n﹣1=n2﹣（n﹣1）2=2n﹣1，∴，∴，，∴=，∴．【点评】本题考查数列递推式，考查了错位相减法求数列的前n项和，是中档题．20．（12分）某市园林局将一块三角形地块ABC的一个角AMN建设为小游园，已知A=120°，AB，AC的长度均大于400米，现要在边界AM，AN处建设装饰墙，沿MN建设宽1.5米的健康步道．（1）若装饰墙AM，AN的总长度为400米，AM，AN 的长度分别为多少时，所围成的三角形地块AMN的面积最大？（2）若AM段装饰墙墙髙1米，AN段装饰墙墙髙1.5米，AM段装饰墙造价为每平方米150元，AN段装饰墙造价为每平方米100元，建造装饰墙用了90000元．若建设健康步道每100米需5000元，AM，AN的长度分别为多少时，所用费用最少？（1）设AM=x米，AN=y米，则x+y=400，△AMN的面积S=xysin120°=xy，【分析】利用基本不等式，可得结论；（2）由题意得，即x+y=600，要使竹篱笆用料最省，只需MN最短，利用余弦定理求出MN，即可得出结论．【解答】解：设AM=x米，AN=y米，则（1）x+y=400，A=120°，△AMN的面积S=xysin120°=xy≤，当且仅当x=y=200时取等号；（2）由题意得150x+1.5y•100=90000，即x+y=600，要使竹篱笆用料最省，只需MN最短，所以MN2=x2+y2﹣2xycos120°=x2+y2+xy=（x+y）2+y2﹣xy=360000﹣xy所以x=y=300时，MN有最小值300．∴AM=AN=300米时，所用费用最少为3×5000=15000元．【点评】本题考查利用数学知识解决实际问题，考查三角形面积的计算，余弦定理的运用，属于中档题．21．（12分）已知△ABC为锐角三角形，角A，B，C的对边分别为a，b，c且（b2+c2﹣a2）tanA=bc．（1）求角A的大小；（2）若a=，求2b﹣c的取值范围．【分析】（1）利用余弦定理列出关系式，代入已知等式变形求出sinA的值，即可确定出角A的大小；（2），由（1）可得A，由正弦定理可得，从而利用三角函数恒等变换的应用可得2b﹣c=2sin（B﹣），结合B的范围B，可得2b﹣c 取值范围．【解答】解：（1）由（b2+c2﹣a2）tanA=bc．及余弦定理b2+c2﹣a2=2bccosA，得sinA=∵△ABC为锐角三角形，∴A=．（2）由正弦定理可得，∴2b﹣c=4sinB﹣2sinC=4sinB﹣2sin（）=3sinB﹣cosB=2sin（B﹣）．∵△ABC为锐角三角形，∴，∴∴，2∴2b﹣c的取值范围为（0，3）【点评】本题主要考查了三角函数恒等变换的应用，考查了正弦定理，正弦函数的图象和性质在解三角形中的应用，属于中档题．22．（12分）设数列{a n}的前n项和为S n，且S n=4﹣a n﹣．（1）令b n=2n﹣1•a n，证明数列{b n}为等差数列，并求{b n}的通项公式；（2）是否存在n∈N*，使得不等式成立，若存在，求出λ的取值范围，若不存在，请说明理由．【分析】（1）由已知可得2a n=a n﹣1+，故2n﹣1•a n=2n﹣2•a n﹣1+1，进而可得数列{b n}为等差数列，并得到{b n}的通项公式；（2）存在n=1，使得不等式成立，且9≤λ≤10，利用对勾函数和反比例函数的图象性质，可得答案．【解答】解：（1）∵数列{a n}的前n项和为S n，且S n=4﹣a n﹣．∴当n=1时，a1=S1=4﹣a1﹣，即a1=1，=4﹣a n﹣1﹣．当n≥2时，S n﹣1则a n=S n﹣S n﹣1=a n﹣1﹣a n﹣，即2a n=a n﹣1+，故2n﹣1•a n=2n﹣2•a n﹣1+1，即2n﹣1•a n﹣2n﹣2•a n﹣1=1，∵b n=2n﹣1•a n，即{b n}是以1为首项，以1为公差的等差数列；即b n=n；（2）由（1）知：⇔，根据对勾函数的性质，可得：在n=3时取最小值，由反比例函数的性质，可得：在n=1时取最大值10；当n=1时，9≤λ≤10；当n=2时，6≤λ≤5，不存在满足条件的λ值；当n=3时，≤λ≤，不存在满足条件的λ值；当n≥4时，不存在满足条件的λ值；综上可得：存在n=1，使不等式成立，9≤λ≤10．【点评】本题考查的知识点是数列与不等式及函数的综合应用，难度中档．。

第Ⅰ卷第一部分听力（共两节，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.Why does the man need the notes?A.To prepare for an exam.B.To discuss with the woman.C.To write a story.2.Who will go to university?A.The woman.B.The man.C.The man's brother.3.Where are the speakers most probably?A.At a birthday party.B.In the street.C.At home.4.When should Mike turn up?A.1:50.B.2:00.C.2:30.5.What will the man do tonight?A.Play football.B.Visit his brother.C.Learn math. 第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置，听每段对话或独白前，你将有时间阅读各个小题。

每小题5秒钟；听完后，各小题给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6.When did the woman move in?st week.B.This Monday.C.This Friday evening.7.Where will the man be the day after tomorrow?A.At the woman's house.B.Out of town.C.In his new house.听第7段材料，回答第8至9题。

本试卷共10页,全卷满分150分,考试用时120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。

2.选择题的作答:每小题选出答案后,用2B铅笔将答题卡上对应题目的答案标号涂黑。

写在试题卷、演草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、演草纸和答题卡上的非答题区域均无效。

4.考试结束后,请将本试卷和答题卡一并上交。

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. Where did the man grow up?A. In America.B. In Canada.C. In China.2. When will the train start?A. At 3:30.B. At 4:30.C. At 5:003. Where does the dialogue take place?A. At the barber's.B. At the doctor’s.C. At the cinema.4. What does the woman want?A. A cup of tea.B. A cup of coffee.C. A glass of water.5. Who took the picture?A. The man.B. The woman.C. Their friend.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。

金山中学高二年级英语期中质量抽查卷2018.4（考试时间：120分钟满分：150分）第 II 卷（共110分）I. Listening comprehensionSection A Short conversationsDirections: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard.1. A. In a bookstore. B. In a grocery.C. In a stationery shop.D. In a shopping mall2. A. Diner and waitress. B. Librarian and reader.C. Ticket seller and customer.D. Teacher and student.3. A. She is not hungry B. She wants to dine out.C. She doesn’t like cooking.D. She feels awful today.4. A. The postcard has been lost. B. The man will go to the post office.C. The local post office is closed.D. The woman is expecting a postcard.5. A. To a bank B. To Macao.C. To a travel agency.D. To a gymnasium.6. A. There will be too many people at the party.B. He feels sorry that the woman is not coming.C. It makes people happier to have more parties.D. The woman can bring her brother to the party.7. A. The man is extremely fond of traveling.B. The woman has taken many pictures at the contest.C. The man admires the woman’s talent in writing.D. The woman is an experienced photographer.8. A. The new dress is for warm weather. B. The new dress makes her look cool.C. She doesn’t like cold weather at all.D. She bought the dress when it was warm.9. A. A nice hair-style. B. An old photo.C. A wonderful wedding.D. An unforgettable friend.10. A. She could hardly find the truth. B. She doesn’t agree with the man.C. She is good at finding a place to stay.D. She had no travel experience in Russia.Section B PassagesDirections: In Section B, you will hear two short passages, and you will be asked three questions on each of the passages. The passages will be read twice, the questions will be spoken only once. When you hear a question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Questions 11 through 13 are based on the following passage.11. A. The jeep was returned to his friend.B. The jeep was shot by a villager.C. The jeep made through a difficult trip to the destination.D. The jeep went wrong and had to be stopped.12. A. An old villager called a repairman to solve the problem.B. The man had to call his friend over to solve the problem.C. Some bananas were used to cover the hole on the tank jacket.D. The villagers helped to drag the car to the repair place.13. A. Bananas are much more useful than other fruits.B. Many things can be useful in unexpected fields.C. Bananas should be used a lot in the car industry.D. A person should always lend good cars to friends.Questions 14 through 16 are based on the following passage.14. A. 100. B. 200. C. 300. D. 500.15. A. To lengthen the limit of working hours of the pilots.B. To strictly punish the pilots who fall asleep when flying.C. To shorten the pilots’ night flying time.D. To find new ways to fix mechanical problems.16. A. Poor cooperation between the pilot and the co-pilot.B. Automatic flight adopted by most planes.C. Pilot exhaustion during the flights.D. Natural threats including storms and fogs.Questions 17 through 20 are based on the following conversation17. A. Because he didn’t have her number.B. Because he thought it was unnecessary.C. Because he wished his luggage would be found soon.D. Because he had to attend a business meeting.18. A. His flight number and arrival time. B. The cause of the flight’s late arrival.C. The number of his luggage check.D. The description of his luggage.19. A. On the plane ticket. B. At the information desk.C. At the check-in counter.D. From the record of his flight.20. A. Missing luggage is unlikely to be found.B. There are important documents in his luggage.C. It is possible for the man to get his luggage today.D. The man thinks it is difficult to find his baggage.Ⅱ. Grammar and vocabularySection ADirections: After reading the passages below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Your comfort zone is basically all of the situation in which you feel confident and “at home”; for example, doing the job you’ve done for a long time, (21)________（socialize）with a group of people you know well or living in a place you (22)________(live）all your life. Stepping out of your comfort zone, for example, starting a new job, going to a party where you don’t know anyone or moving to another part of the country, can be frightening, but (23)________ you do so, your confidence grows.Confident people also have comfort zones, but the difference between them and people (lack) (24)________confidence is (25)________they are willing to take risks and try new things (26)______ ______ ______ their fears.Confidence comes from taking action, not from inaction; each time you succeed in doing something (27)________ you fear, your comfort zone will expand. If you drive, think of your first driving lesson – probably you (28)________(terrify) at the thought of driving 100 meters –but as you gradually improved your skills, your confidence grew and now you could probably drive 100 miles (29)________ worrying.If you lack confidence, you may find yourself (30)________(stick) in a situation you are unhappy with – such as being in a relationship that is no longer working, spending hourstravelling to work on the bus or train because you fear learning to drive, or doing a job you dislike or find fulfilling --- because you are too afraid to take the first step towards changing your life.Section BDirections: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.It is a familiar scene these days: employees taking newly laid-off co-workers out for a drink for comfort. But which side deserves 31 more, the jobless or the still employed? On March 6, researchers at a conference at the University of Cambridge heard data suggesting it's the latter: compared with people who are straight-up laid off, those who keep their job but under a constant threat of losing it suffer a great 32 _ in mental well-being.Brendan Burchell, a Cambridge sociologist, presented his analysis based on various surveys conducted across Europe. The data suggest that employed people who feel insecure in their jobs show 33 levels of anxiety and depression as those who are unemployed. Although a newly jobless person’s mental health may “bottom out” after about six months, and then even begin to improve, the mental state of people who are 34 worried about losing their job “just continues to get worse and worse”, Burchell says.Evolutionary psychologists support this theory by arguing that human beings feel more stress during times of 35 because they sense an immediate but invisible threat. Patients have been known to experience higher levels of anxiety, for example, while waiting for examination results than knowing what they are suffering from—even if the result is cancer. It's better to get the bad news and start doing something about it rather than wait with anxiety. When the 36___ con tinues, people stay in a nonstop “fight or flight” response, which leads to 37 stress.But not every employee in insecure industries has such a 38 view, Burchell says. In general, women get on better. While reporting higher levels of anxiety than men when directly __39 , women scored lower in stress on the GHQ 12, even when they had a job they felt insecure about losing. As Burchell explains, “For women, most studies show that any job— it doesn't matter whether it is secure or insecure —gives p sychological improvement over unemployment.” Burchell supposes that the difference in men is that they tend to feel pressure not only to beemployed, but also to be the 40 breadwinner, and that more of a man’s self-worth depends on his job.III. Reading ComprehensionSection ADirections: For each blank in the following passages there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.As computer technology has improved, today’s onl ine environments have become more complex and realistic. One website that has 41 over six million Internet users is Second Life. Second Life is a three-dimensional (3-D) online world where people work, shop, sell and trade items, meet others, go to con certs and much more. Users, who are called “residents,” create their own characters, or “avatars,” They use their avatars to 42 Second Life’s virtual world.Just like any country, Second Life has its own 43 . Using a credit card, users can buy “Linden Dollars,” the official currency of Second Life. With Linden dollars, they can 44 land or even an entire island where they can build and decorate their own house. Land is treated as a valuable commodity （商品） in Second Life. Residents can choose to rent or sell their land to other users, and they can earn real money from these 45 _ .When residents want to be 46 , they can use their avatars to interact with others. There are games, shopping malls, clubs, and many kinds of stores 47 to residents. With so many opportunities for interesting things to do and see, it’s easy to see why so many users devote so much time to the site.Second Life offers users a quick and easy 48 from the real world. Many residents see this as one of the main 49 of using the site. Spending time on Second Life allows them to escape the stresses and problems of their daily lives. If a user is having a stressful day at work, she can visit a beautiful island, go skiing, or even fly to another planet during her lunch break.50 escaping the stress of their daily lives, users can also escape who they are in the real world and live out their fantasies. 51 , residents can change their occupations, physical appearance, and even their nationalities. A doctor from the United States can be a Brazilian musician on Second Life. 52 , Second Life lets users live in a world without 53 .Although Second Life started as a way for people to escape the real world, it has become more and more 54 to the real world in many ways. Now on Second Life, some countries have virtual embassies, businesses have meetings in 55 rooms, and universities have places wherestudents can view the campus and take classes. Today, Second Life allows users to experience both fantasy and reality in the same place.41. A. persuaded B. devoted C. attracted D. contacted42. A. explore B. create C. fight D. approach43. A. environment B. fortune C. society D. economy44. A. cultivate B. purchase C. insure D. access45. A. instructions B. withdrawals C. deals D. conducts46. A. entertaining B. detective C. different D. social47. A. available B. affordable C. applicable D. adaptable48. A. suffering B. discouragement C. escape D. tolerance49. A. satisfactions B. dominations C. conveniences D. benefits50. A. In addition to B. Instead of C. In view of D. With regard to51. A. On top of that B. As a result C. For example D. Besides52. A. However B. Basically C. Inevitably D. Additionally53. A. starvation B. imaginations C. connection D. limitations54. A. exposed B. adjusted C. similar D. essential55. A. man-made B. distinctive C. functional D. virtualSection BDirections: Read the following passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read. （A）Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when we finally clean up our act.If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.The effects of some bad habits —smoking, in particular—can haunt you for decades. But the damage from other habits can be largely healed.“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.” says Dr. Jeffrey Koplan. “Maybe not right away. It’s like slamming on the brakes. You do need a certain distance. ”But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research:—A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. —The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline…Adopting healthy habits w on’t cure all that bothers you, of course. But doctors believe that many chronic diseases—from high blood pressure to heart disease and even some cancers—can be warded off with a few sensible changes in lifestyle.Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you’ll discover you’ve adopted a new way of life.56. Most people with bad habits of eating more than they should believe that ______.A. they can never change the habits that have haunted them for decadesB. their bodies cannot be damaged by the bad habitsC. their bodies can heal all the damage without the help from outsideD. they can force themselves to clean up the had habits later57. The evidence against the assumption that we are indestructible_____.A. is seldom apparentB. is clearly shown in the mirrorC. will appear obvious sooner or laterD. is still a question58. According to the recent announcements______.A. women should eat as much fish as possibleB. women are at a higher risk of suffering a stroke than menC. men don’t have to eat as much fish as womenD. eating a little more fish can improve women’s health59. It is implied in the passage that______ .A. smokers have lower levels of carbon monoxide than non-smokersB. the blood of smokers is more sticky than that of non-smokersC. smokers will be unlikely to die from heart attack if they quit smokingD. chronic diseases can be cured if we drop our habit of smoking（B）Beijing is hardly alone in its air pollution problems. The world Health Organization has said that roughly half of the world’s urban population is exposed to pollution at least 2.5 times higher than it recommends.While it may take years to fix this global problem, innovative minds in the Asia region have come up with creative solutions for living with air pollution.DIY PurifierThomas Talhelm started worrying about the air inside his Beijing home during “airpocalypse”(空气末日) in 2013 wh en Beijing’s air quality index skyrocketedto a terrifying 755.The scholar couldn’t afford the luxury of an expensive air purifier. “Filters (过滤器) are actually very simple—a high efficient filter is all you need to get over96% of the PM2.5,” he said.With three of his friends, Talhelm created Smart Air, an air purifier consisting of a basic household fan with a high efficient filter attached to it.It works as efficiently as the big brands selling for thousands of dollars, removing more than 90 p ercent of PM2.5 in your room, according to Talhelm’s research. Invisible MaskInfipure’s “nose mask”claims to cut 99% of PM2.5 without the trouble ofa surgical face mask.The filters, made from special materials, are inserted into your nose and aim to be undetectable.“People care about their health, but don’t want all the downsides that comewith a traditional face mask,” Infipure co-founder Francis Law explained. Plant BackpackTaiwanese artist Chui Chih has designed a survival device for an apocalyptic world. Named Voyage on the Planet, a potted plant is housed inside a clear backpackhooked up to two tubes to bring fresh air to a face mask. It’s a bold, abstract idea from an oxygen tank.Smog VacuumDaan Roosegaarde has been working on a smog vacuum that will suck pollutants from the sky to the ground like a vacuum, making way for clean air.A byproduct of this smog vacuum, namely The Smog Free Tower, is the “smog ring”—a piece of jewelry made from smog particulates(微粒).“The pollution we suck up, the small particulates, we don’t throw them away.We put them under pressure for a couple of weeks and they crystallize(结晶),creating something like a diamond,” Roosegaarde explains.60. Thomas Talhelm invented Smart Air for all the following reasons except _______.A. the high price of the big brandsB. the poor quality of the indoor airC. the help from three of his friendsD. the simple principle behind the device61. If someone wants to travel around in those polluted days, which product will he mostprobably choose for the sake of convenience?A. Smart Air.B. The Smog Free Tower.C. Voyage on the Planet.D. Infipure’s nose mask.62. In which solution the inventor also makes use of the dust collected from the polluted air?A. Invisible Mask.B. Smog Vacuum.C. Plant Backpack.D. DIY Purifier.（C）A scientist working at her lab bench and a six-month-old baby playing with his food might seem to have little in common. After all, the scientist is engaged in serious research to uncover the very nature of the physical world, and the baby is, well, just playing…right? Perhaps, butsome developmental psychologists have argued that this“play”is more like a scientific investigation than one might think.Take a closer look at the baby playing at the table. Each time the bowl of rice is pushed over the table edge, it falls to the ground—and, in the process, it brings out important evidence about how physical objects interact; bowls of rice do not float in mid-air, but require support to remain stable. It is likely that babies are not born knowing this basic fact of the universe; nor are they ever clearly taught it. Instead, babies may form an understanding of object support through repeated experiments and then build on this knowledge to learn even more about how objects interact. Though their ranges and tools differ, the baby’s investigation and the scientist’s experiment appear to share the same aim(to learn about the natural world), overall approach (gathering direct evidence from the world), and logic (are my observations what I expected?).Some psychologists suggest that young children learn about more than just the physical world in this way—that they investigate human psychology and the rules of language using similar means. For example, it may only be through repeated experiments, evidence gathering, and finally overturning a theory that a baby will come to accept the idea that other people can have different views and desires from what he or she has, for example, unlike the child, Mommy actually doesn’t like Dove chocolate.Viewing childhood development as a scientific investigation throws light on how children learn, but it also offers an inspiring look at science and scientists. Why do young children and scientists seem to be so much alike? Psychologists have suggested that science as an effort —the desire to explore, explain, and understand our world—is simply something that comes from our babyhood. Perhaps evolution provided human babies with curiosity and a natural drive to explain their worlds, and adult scientists simply make use of the same drive that served them as children. The same cognitive (认知的) systems that make young children feel good about figuring something out may have been adopted by adult scientists. As some psychologists put it, “It is not that chi ldren are little scientists but that scientists are big children.”63. According to some developmental psychologists, _________.A. a baby’s play is nothing more than a game.B. scientific research into babies’ games is possibleC. the nature of babies’ play has been thoroughly investigatedD. a baby’s play is somehow similar to a scientist’s experiment64. We learn from Paragraph 2 that_______.A. scientists and babies seem to observe the world differentlyB. scientists and babies often interact with each otherC. babies are born with the knowledge of object supportD. babies seem to collect evidence just as scientists do65. Children may learn the rules of language by________.A. exploring the physical worldB. investigating human psychologyC. repeating their own experimentsD. observing their parents’ beh aviors66. What is the main idea of the last paragraph?A. The world may be more clearly explained through children’s play.B. Studying babies’ play may lead to a better understanding of science.C. Children may have greater ability to figure out things than scientists.D. One’s drive for scientific research may become stronger as he grows.Section CDirections: Read the following passage and choose the most suitable sentences to fill in the blanks and complete the passage. There are two extra sentences you do not need.Who Writes the President's Speeches?The president of the United States must be an orator. The president gives an annual address on the State of the Union and speaks at the inauguration and other special events. ____67____In his Gettysburg Address, Abraham Lincoln spoke fewer than 300 words, but those words have become immortal. Franklind. Roosevelt set the standard for later presidents in his 30 “fireside chats”, which aired on the radio and dealt with the Great Depression and World War II.Beginning with George Washington, American presidents often sought assistance with the content and wording of their speeches, although they may have done the writing themselves.____68____ The first President to assign the task of speechwriting to an aide, however, was Calvin Coolidge(1923-1929), the laconic president whose nickname was "Silent Cal”. The aides name was Judson Welliver. (Today, there is a bipartisan organization for former presidential speechwriters, the Judson Welliver Society.) Since the middle of the twentieth century, the role of such speechwriters has expanded; the Executive branch now includes an Office of Speechwriting as part of its Department of Communications, Speechwriting and Media Affairs.____69____ In his inaugural speech, John F. Kennedy urged Americans “Ask not what your country can do for you -- ask what you can do for your country”. George H. W. Bush, in his inaugural speech, imagined community volunteers and organizations as “a thousand points of light”. Both of these phrases originated with the gifted men and women who worked as the president's speechwriters.The process of drafting a presidential speech is long and complicated, and different presidents make different contributions. Some write large portions of the text and invite criticism from aides and advisers; others ask speechwriters to draft a speech in its entirety, and then they edit it to their own satisfaction. ____70____ The final product, whatever the process, must “sound” like the person who speaks the words. As one speech writer recently said, “Our concern was not to write a good speech, but to write a good speech that is also his speech”.IV. Summary WritingDirections: Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.These days our society develops rapidly and forces people to rush. It appears that people have got used to being in a hurry. However, it’s better for people to take their time and live their life at a slower pace than to hurry to get things done.The main reason that convinces us to oppose doing work in a hurry is the possibility of doing wrongs in a rush. When people do their jobs or take action in a hurry, they can’t make a sound decision and probably regret later. As the say ing goes, “Haste makes waste.” We should think carefully before making a decision and do our work less quickly. We should not make mistakesby doing work hurriedly.Slowing down the pace of life helps people enjoy their life better. For example, taking a train to some place certainly will take more time than taking a plane. However, taking a train makes people have enough time to get to know a lot of new friends. Besides, it allows people to fully enjoy the beautiful scenery along the way. On the contrary, being in a hurry will make us lose chances of enjoying our lives.Finally, slower life pace provides better health conditions for us. As is known to all, taking action in a hurry bothers people and raises their stress. People think if they are not in a hurry, they will become a loser and that annoys them. But being in a hurry can hurt people both physically and mentally. According to some studies, people who have a slower pace suffer fewer diseases, tend to be happier and live much longer than those whose life is tense, even if the former finish jobs more slowly than the latter.In short, working quickly will bring about more material benefits to make our society more advanced. Yet, much stress can’t bring enjoyment, friends and health, which are muc h more important than money and other material advantages. Therefore, take your time and live your life at a slower pace.第 II 卷（共40分）I. Translation (3+3+4+5)Directions: Translate the following sentences into English, using the words given in the brackets.72. 和她为鸡毛蒜皮的小事争论不休没有意义。

淮南二中2017-2018学年高二（上）期中考试英语试卷I．听力部分（共两节，满分20分）第一节（共5小题;每小题1分，满分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 man do first?A.Have dinner with the woman.B.Have an evening class.C.Have a snack.2.Why does the man look terrible?A.He got the flu.B.He studied late last night.C.He had difficulty in sleeping.3.What do we know about the sisters?A.They are different in character.B.They have a lot in common.C.Their voices are beautiful.4.What does the woman suggest the man do?A.Have a talk with his boss.B.Stick to what he did.C.Give up the job.5.What does the woman mean?A.The corner is a better place for the plants.B.The man should water the plants less.C.The plants may need more light.第二节（共15小题;每小题1分，满分15分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

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）请听下面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。

听完每段对话后，你都有10秒钟的时间回答有关小题和阅读下一小题。

每段对话仅读一遍。

1. What’s the probable relationship between the two speaers?A. Tourist and guide.B. Waiter and customer.C. Patient and doctor.2. What do we now about Sam?A. His sister will leave for New Yor.B. His sister will leave for Los Angeles.C. He will leave New Yor.3. What is the woman going to do?A. Copy the paper.B. Throw the paper away.C. Read the paper again.4. Why does the woman than the man?A. He lent her some money.B. He returned her money found.C. He gave her a five-pound bill.5. Where does this conversation possibly tae place?A. At an airport.B. At a railway station.C. At a department store.第二节（共15小题；每小题1.5分，满分22.5分）请听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。

2017-2018学年高二英语第二学期期中考试试题考试时间：120分钟总分：150分姓名：班级：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。

2. 答题前，考生务必将自己的姓名、考室号、座位号和班级号填写在本试卷答题卡上相应的位置。

3. 全部答案在答题卡上完成，答在本试卷上无效。

4. 考试结束后，答题卡交回。

第Ⅰ卷第一部分听力（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2分，满分10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 does the man want to do?A. Take photos.B. Buy a camera.C. Help the woman.2. What are the speakers talking about?A. A noisy night.B. Their life in town.C. A place of living.3. Where is the man now?A. On his way.B. In a restaurant.C. At home4. What will Celia do?A. Find a player.B. Watch a game.C. Play basketball.5. What day is it when the conversation takes place?A. Saturday.B. Sunday.C. Monday.第二节（共15小题：每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

2017-2018学年度江苏省灌南华侨高级中学第二学期期中考试 高二英语试卷（附答案） （分值：120分，时间120分钟） 第二部分：英语知识运用（共两节，满分35分） 第一节 单项选择（共15小题；每小题1分，满分15分） 请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项。 21. —You keep so many books! —Reading is to the mind ________ exercise is to the body. A. what B. which C. how D. why 22. Before we can print this book, you will have to _______ all the dirty words. A. cut back B. cut out C. cut off D. cut down 23. That’s all for today’s programme. Please stay _______ to CCTV International’s Chinese Channel this time next week. A. turned B. toned C. tuned D. tended 24. —What impresses you most when you visit the Acropolis? —______ it is that has brought the former grand palace into today’s terrible scene. A. When B. Where C. How D. What 25. To break the ice, Lawrence _______ his interest in mountain climbing and soon a conversation flowed freely. A. touched on B. calculated on C. decided on D. insisted on 26. After working there for five years, John is about to leave the company whose future the recent downturn in sales ______ doubt on. A. has been cast B. will be cast C. has cast D. will cast 27. Scientists have been _______ the temperature of the oceans to see how it changes over a period of time. A. predicting B. charting C. increasing D. controlling 28. The city has changed a lot these years. George _______ well not find his way to the house where he lived a decade ago. A. can B. must C. should D. may 29. Echo is always complaining about her job as a cashier, but in fact it’s really _______ to obtain a position in such a big company. A. everything B. something C. anything D. nothing 30. Too little _________ was given to this problem. Otherwise it would have been solved. A. thought B. solution C. way D.idea 31. Both Jack and his wife were at the initial stage of their careers at that time, so only once in a while _______ to see their parents. A. they went B. would they go C. they would go D. did they go 32. The only sign of life________ an ugly-looking black goat tied to a tree in a field nearby, the village seemed _________ A. was; abandoned B .been; rejected C. being; deserted D.to be; declined 33. Ann could have turned up for the interview on time that morning, but she ________ in heavy traffic on the way. A. would be caught B. had been caught C. was caught D. was being caught 34. —It seems you’ve extremely satisfied with your present job, right? —Yeah! A job, for me, _______ I can apply what I’ve learnt, is a perfect one. A .which B. whether C. where D. that 35.—No matter how hard I tried to persuade her, she wouldn’t listen. __ Don’t worry._________. A .It’s her field B. Let me have a go C. Let me be D. You are kidding 第二节 完形填空（共20小题；每小题1分，满分20分） 请认真阅读下面短文，从短文后各题所给的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。 Throughout my life, I have had many different experiences that have taught me useful life lessons, encouraged me to push forward through adversity(逆境), and helped prepare me for my future attempts. I want to use the __36__ I was blessed with to help encourage others. Everyone faces __37__ on a daily basis. They need someone to see __38__ and guide them in the right direction. I am blessed to have people who have loved and __39__ me throughout my life. This gives me a greater __40__ to do the same for others. In my opinion, fighting through adversity is a challenge, but very __41__ when accomplished. When I was nine years old, my teacher and physician diagnosed me with dyslexia(诵读困难症) and memory problems. The thought of being __42__ scared me. I did not want to feel __43__ or dumb. Over the years I have been able to __44__ it with the help of others. This taught me how to work __45__ for things that are important to me. I may put in double the hours and get the same __46__ as someone else, but that has __47__ my character. I __48__ at a special needs camp every summer. This is a place for them to feel loved and __49__. Through my trials I __50__ patience to improve my abilities as a counselor. I chose to work at the Preschool at my church and I have got __51__ to encourage four to six year old children. Weekly we encourage teamwork, sharing, and good behavior. These __52__ things, which may seem not serious at all, develop respect among each other. Loving and helping others can __53__ the negative of a lower salary that __54__ often meet with. I believe it is more important to spend your time in a meaningful job than to work for a high income. I am looking forward to the educational classes in college and __55__the skills to inspire children to develop a love for learning. 36. A.gifts B. plans C. dreams D. ideas 37. A. changes B. trials C. chances D. choices 38. A.problems B. expectations C. benefits D. possibilities 39. A. respected B. encouraged C.praised D. understood 40. A.decision B. pressure C. desire D. limit 41. A. difficult B. ordinary C. rewarding D. boring 42. A.bitter B. different C. aggressive D. disappointing 43. A. left off B. left out C. left alone D. left around 44. A. realize B.ignore C. underline D. overcome 45. A. out B. together C.hard D. up 46. A. right B. reason C. point D. result 47. A. lost B.suited C. shared D. built 48. A. relax B. recover C.exercise D. serve 49. A. normal B.content C. bright D. fortunate 50. A. evaluated B. developed C. trained D.required 51. A. activities B. opportunities C.place D. challenges 52. A.natural B. strange C. little D. modern 53. A.beat B. understand C. simplify D. discover 54. A. nurses B. waiters C. cleaners D. teachers 55. A. learning B. requiring C. displaying D.explaining 第三部分：阅读理解（共15小题；每小题2分，满分30分）