吉林省实验中学2016-2017学年高二下学期期中考试英语试题 Word版含答案

2016学年第二学期高二数学期末考试一、填空题(本大题满分54分)本大题共有12题，其中第1题至第6题每小题4分，第7题至第12题每小题5分，考生应在答题纸上相应编号的空格内直接填写结果，否则一律得零分．1. 的展开式中项的系数为______．【答案】【解析】的展开式的通项公式为，令，求得，可得展开式中项的系数为，故答案为10.2. 已知直线经过点且方向向量为，则原点到直线的距离为______.【答案】1【解析】直线的方向向量为，所以直线的斜率为，直线方程为，由点到直线的距离可知，故答案为1.3. 已知全集，集合,,若，则实数的值为___________.【答案】2【解析】试题分析：由题意，则，由得，解得．考点：集合的运算．4. 若变量满足约束条件则的最小值为_________.【答案】【解析】由约束条件作出可行域如图，联立，解得，化目标函数，得，由图可知，当直线过点时，直线在y轴上的截距最小，有最小值为，故答案为. 点睛：本题主要考查线性规划中利用可行域求目标函数的最值，属简单题.求目标函数最值的一般步骤是“一画、二移、三求”：（1）作出可行域（一定要注意是实线还是虚线）；（2）找到目标函数对应的最优解对应点（在可行域内平移变形后的目标函数，最先通过或最后通过的顶点就是最优解）；（3）将最优解坐标代入目标函数求出最值.5. 直线上与点的距离等于的点的坐标是_____________.【答案】或.【解析】解：因为直线上与点的距离等于的点的坐标是和6. 某学生在上学的路上要经过2个路口，假设在各路口是否遇到红灯是相互独立的，遇到红灯的概率都是，则这名学生在上学路上到第二个路口时第一次遇到红灯的概率是_______.【答案】【解析】设“这名学生在上学路上到第二个路口首次遇到红灯”为事件，则所求概率为，故答案为.7. 某学校随机抽取名学生调查其上学所需时间（单位：分钟），并将所得数据绘制成频率分布直方图（如图），其中，上学所需时间的范围是，样本数据分组为，，，，．则该校学生上学所需时间的均值估计为______________．（精确到分钟）.【答案】34................点睛：本题考查频率分布直方图，解题的关键是理解直方图中各个小矩形的面积的意义及各个小矩形的面积和为1，本题考查了识图的能力；根据直方图求平均值的公式，各个小矩形的面积乘以相应组距的中点的值，将它们相加即可得到平均值.8. 一个口袋内有4个不同的红球，6个不同的白球，若取一个红球记2分，取一个白球记1分，从中任取5个球，使总分不少于7分的取法有多少种________.【答案】186【解析】试题分析：设取红球个，白球个，则考点：古典概型.9. 如图，三棱锥满足：，，，，则该三棱锥的体积V的取值范围是______．【答案】【解析】由于平面，，在中，，要使面积最大，只需，的最大值为，的最大值为，该三棱锥的体积V的取值范围是.10. 是双曲线的右支上一点，分别是圆和上的点，则的最大值等于_________.【答案】9【解析】试题分析：两个圆心正好是双曲线的焦点，，，再根据双曲线的定义得的最大值为.考点：双曲线的定义，距离的最值问题.11. 棱长为1的正方体及其内部一动点，集合,则集合构成的几何体表面积为___________.【答案】【解析】试题分析：.考点：几何体的表面积.12. 在直角坐标平面中，已知两定点与位于动直线的同侧，设集合点与点到直线的距离之差等于，，记,.则由中的所有点所组成的图形的面积是_______________.【答案】【解析】过与分别作直线的垂线，垂足分别为，，则由题意值，即，∴三角形为正三角形，边长为，正三角形的高为，且，∴集合对应的轨迹为线段的上方部分，对应的区域为半径为1的单位圆内部，根据的定义可知，中的所有点所组成的图形为图形阴影部分．∴阴影部分的面积为，故答案为.二、选择题(本大题满分20分)本大题共有4题，每题只有一个正确答案.考生应在答题纸的相应编号上，将代表答案的小方格涂黑，选对得5分，否则一律得零分．13. 已知为实数，若复数是纯虚数，则的虚部为（）A. 2B. 0C. -2D. -2【答案】C【解析】∵复数是纯虚数，∴，化为，解得，∴，∴，∴的虚部为，故选C.14. 已知条件：“直线在两条坐标轴上的截距相等”，条件：“直线的斜率等于”，则是的（）A. 充分非必要条件B. 必要非充分条件C. 充要条件D. 既非充分又非必要条件【答案】B【解析】当直线过原点时，直线在两条坐标轴上的截距相等，斜率可以为任意数，故不成立；当直线的斜率等于，可设直线方程为，故其在两坐标轴上的截距均为，故可得成立，则是的必要非充分条件，故选B.15. 如图，在空间直角坐标系中，已知直三棱柱的顶点在轴上，平行于轴，侧棱平行于轴．当顶点在轴正半轴上运动时，以下关于此直三棱柱三视图的表述正确的是（）A. 该三棱柱主视图的投影不发生变化；B. 该三棱柱左视图的投影不发生变化；C. 该三棱柱俯视图的投影不发生变化；D. 该三棱柱三个视图的投影都不发生变化．【答案】B【解析】A、该三棱柱主视图的长度是或者在轴上的投影，随点得运动发生变化，故错误；B、设是z轴上一点，且，则该三棱柱左视图就是矩形，图形不变．故正确；C、该三棱柱俯视图就是，随点得运动发生变化，故错误．D、与矛盾．故错误；故选B.点睛：本题考查几何体的三视图，借助于空间直角坐标系．本题是一个比较好的题目，考查的知识点比较全，但是又是最基础的知识点；从正面看到的图叫做主视图，从左面看到的图叫做左视图，从上面看到的图叫做俯视图，根据图中C点对三棱柱的结构影响进一步判断.16. 如图，两个椭圆，内部重叠区域的边界记为曲线，是曲线上任意一点，给出下列三个判断：①到、、、四点的距离之和为定值；②曲线关于直线、均对称；③曲线所围区域面积必小于．上述判断中正确命题的个数为（）A. 0个B. 1个C. 2个D. 3个【答案】C【解析】对于①，若点在椭圆上，到、两点的距离之和为定值、到、两点的距离之和不为定值，故错；对于②，两个椭圆，关于直线、均对称，曲线关于直线、均对称，故正确；对于③，曲线所围区域在边长为6的正方形内部，所以面积必小于36，故正确；故选C.三、解答题(本大题满分76分)本大题共有5题，解答下列各题必须在答题纸相应编号的规定区域内写出必要的步骤．17. 已知复数满足，（其中是虚数单位），若，求的取值范围．【答案】或【解析】试题分析：化简复数为分式的形式，利用复数同乘分母的共轭复数，化简为的形式即可得到，根据模长之间的关系，得到关于的不等式，解出的范围.试题解析：，，即，解得或18. 如图，直四棱柱底面直角梯形，，，是棱上一点，，，，，.（1）求异面直线与所成的角；（2）求证：平面.【答案】（1）（2）见解析【解析】试题分析：（1）本题中由于有两两垂直，因此在求异面直线所成角时，可以通过建立空间直角坐标系，利用向量的夹角求出所求角；（2）同（1）我们可以用向量法证明线线垂直，以证明线面垂直，，，，易得当然我们也可直线用几何法证明线面垂直，首先，这由已知可直接得到，而证明可在直角梯形通过计算利用勾股定理证明，，，因此，得证.（1）以原点，、、分别为轴、轴、轴建立空间直角坐标系.则，，，. 3分于是,,,异面直线与所成的角的大小等于. 6分（2）过作交于，在中，，，则，，，，10分，.又，平面. 12分考点：（1）异面直线所成的角；（2）线面垂直.19. 如图，圆锥的顶点为，底面圆心为，线段和线段都是底面圆的直径，且直线与直线的夹角为，已知，．（1）求该圆锥的体积；（2）求证：直线平行于平面，并求直线到平面的距离．【答案】（1）（2）【解析】试题分析：（1）利用圆锥的体积公式求该圆锥的体积；（2）由对称性得，即可证明直线平行于平面，到平面的距离即直线到平面的距离，由，求出直线到平面的距离.试题解析：（1）设圆锥的高为，底面半径为，则，，∴圆锥的体积；（2）证明：由对称性得，∵不在平面，平面，∴平面，∴C到平面的距离即直线到平面的距离，设到平面的距离为，则由，得，可得，∴，∴直线到平面的距离为．20. 阅读：已知，，求的最小值.解法如下：，当且仅当，即时取到等号，则的最小值为.应用上述解法，求解下列问题：（1）已知，，求的最小值；（2）已知，求函数的最小值；（3）已知正数，，求证：.【答案】（1）9（2）18（3）见解析【解析】试题分析：本题关键是阅读给定的材料，弄懂弄清给定材料提供的方法（“1”的代换），并加以运用.主要就是，展开后就可应用基本不等式求得最值.（1）；（2）虽然没有已知的“1”，但观察求值式子的分母，可以凑配出“1”：，因此有，展开后即可应用基本不等式；（3）观察求证式的分母，结合已知有，因此有此式中关键是凑配出基本不等式所需要的两项，如与合并相加利用基本不等式有，从而最终得出.（1），2分而，当且仅当时取到等号，则，即的最小值为. 5分（2），7分而，，当且仅当，即时取到等号，则，所以函数的最小值为. 10分（3）当且仅当时取到等号，则. 16分考点：阅读材料问题，“1”的代换，基本不等式.21. 设椭圆的长半轴长为、短半轴长为，椭圆的长半轴长为、短半轴长为，若，则我们称椭圆与椭圆是相似椭圆．已知椭圆，其左顶点为、右顶点为．（1）设椭圆与椭圆是“相似椭圆”，求常数的值；（2）设椭圆，过作斜率为的直线与椭圆仅有一个公共点，过椭圆的上顶点为作斜率为的直线与椭圆仅有一个公共点，当为何值时取得最小值，并求其最小值；（3）已知椭圆与椭圆是相似椭圆．椭圆上异于的任意一点，求证：的垂心在椭圆上．【答案】（1）或；（2）当时，取得最小值．（3）见解析【解析】试题分析：（1）运用“相似椭圆”的定义，列出等式，解方程可得s；（2）求得的坐标，可得直线与直线的方程，代入椭圆的方程，运用判别式为，求得，再由基本不等式即可得到所求最小值；（3）求得椭圆的方程，设出椭圆上的任意一点，代入椭圆的方程；设的垂心的坐标为，运用垂心的定义，结合两直线垂直的条件：斜率之积为，化简整理，可得的坐标，代入椭圆的方程即可得证．试题解析：（1）由题意得或，分别解得或.（2）由题意知：，，直线，直线，联立方程，整理得：.因为直线与椭圆仅有一个公共点，所以. ①联立方程，整理得：.因为直线与椭圆仅有一个公共点，所以. ②由①②得：.所以，此时，即.（3）由题意知：，所以，且.设垂心，则，即. 又点在上，有，. 则，所以的垂心在椭圆上.。

吉林省实验中学高二下学期期末考试物理试卷（满分100分，考试时间90分钟）命题人：刘宗海 审题人：郝宪武第Ⅰ卷（选择题共52分）一、单项选择题（本大题共12小题，每小题3分，共36分。

在每小题给出的四个选项中只有一项符合题目要求。

）1.下列各组物理量中全部是矢量的是( ) A.位移、速度、加速度、力 B.位移、时间、速度、路程 C.力、位移、速率、加速度 D.速度、加速度、力、路程2.一物体做匀变速直线运动，经过时间t ，它的速度由v 1变为v 2，通过的位移为x ，下列说法中错误的是( )A.这段时间内它的平均速度v ＝x tB.这段时间内它的平均速度v ＝v 1＋v 22C.通过x 2时，它的瞬时速度为xtD.通过x2时，它的瞬时速度为v 21＋v 2223.如图，一质点从A 点开始做初速度为零的匀加速直线运动，加速度大小为a ，B 、C 、D 是质点运动路径上三点，且BC ＝x 1，CD ＝x 2，质点通过B 、C 间所用时间与经过C 、D 间所用时间相等，则质点经过C 点的速度为( )A.x 1＋x 22a x 2－x 1 B.x 1＋x 24a x 2－x 1 C.x 2－x 12ax 2＋x 1D.x 2－x 14ax 2＋x 14.甲、乙两车在同一条直道上行驶，它们运动的位移x 随时间t 变化的关系图象如图所示.已知乙车做匀变速直线运动，其图线与t 轴相切于10s 处.则下列说法正确的是( ) A.甲车的初速度为零 B.乙车的初位置在x 0＝60m 处C.乙车的加速度大小为1.6m/s 2D.5s 时两车相遇，此时甲车速度较大5.一物体由静止开始沿直线运动，其加速度随时间变化的规律如图所示.取物体开始运动的方向为正方向，则下列关于物体运动的v －t 图象正确的是( )6.在平直公路上有甲、乙两辆汽车从同一位置沿着同一方向运动，它们的速度－时间图象如图所示，则( )A.甲、乙两车同时从静止开始出发B.在t ＝2s 时乙车追上甲车C.在t ＝4s 时乙车追上甲车D.甲、乙两车在公路上可能相遇两次7. 光电效应实验装置示意图如图所示.用频率为ν的普通光源照射阴极K ，没有发生光电效应.换用同样频率为ν的强激光照射阴极K ，则发生了光电效应；此时，若加上反向电压U ，即将阴极K 接电源正极，阳极A 接电源负极，在K 、A 之间就形成了使光电子减速的电场.逐渐增大U ，光电流会逐渐减小；当光电流恰好减小到零时，所加反向电压U 可能是下列的(其中W 为逸出功，h 为普朗克常量，e 为电子电荷量)( )A.U ＝hνe －W e B.U ＝2hνe －W e C.U ＝2hν－W D.U ＝5hν2e －W e8.减速带是交叉路口常见的一种交通设施，车辆驶过减速带时要减速，以保障行人的安全.当汽车前轮刚爬上减速带时，减速带对车轮的弹力为F ，下图中弹力F 画法正确且分解合理的是( )9.如图所示，一个“Y”形弹弓顶部跨度为L，两根相同的橡皮条自由长度均为L，在两橡皮条的末端用一块软羊皮(长度不计)做成裹片.若橡皮条的弹力与形变量的关系满足胡克定律，每根橡皮条的劲度系数均为k，发射弹丸时每根橡皮条的最大长度为2L(弹性限度内)，则发射中橡皮条对裹片的最大作用力为( )A.kLB.2kLC.32kLD.152kL10.如图所示是轿车常用的千斤顶，当摇动把手时，螺纹轴就能迫使千斤顶的两臂靠拢，从而将汽车顶起.当车轮刚被顶起时，汽车对千斤顶的压力为 1.0×105N，此时千斤顶两臂间的夹角为120°.下列判断正确的是( )A.此时千斤顶每臂受到的压力大小均为5.0×104NB.此时千斤顶对汽车的支持力为1.0×104NC.若继续摇动把手，将汽车顶起，千斤顶每臂受到的压力将增大D.若继续摇动把手，将汽车顶起，千斤顶每臂受到的压力将减小11.如图所示，A、B、C三物块叠放并处于静止状态，墙面竖直，水平地面光滑，其他接触面粗糙，以下受力分析正确的是( )A.A与墙面间存在压力B.A与墙面间存在静摩擦力C.A物块共受3个力作用D.B物块共受5个力作用12.如图所示为开口向下的“”形框架，两侧竖直杆光滑固定，上面水平横杆中点固定一光滑轻质定滑轮，两侧杆上套着的两滑块用轻绳绕过定滑轮相连，并处于静止状态，此时连接滑块A的绳与水平方向的夹角为θ，连接滑块B的绳与水平方向的夹角为2θ，则A、B两滑块的质量之比为( )A.2sinθ∶1B.2cosθ∶1C.1∶2cosθD.1∶2sinθ二、多项选择题（本大题共4小题，每小题4分，共16分。

河北省衡水中学2016-2017学年高一下学期期中考试英语试卷本试卷满分150分，考试时间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。

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卷无效。

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.考试结束后，请将本试题卷和答题卡一并上交。

第一部分：听力（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。

例：How much is he shirt?答案是C.1. Where is the woman going?A. To a bank.B. To a shop.C. To a park.2. What time does the restaurant close?3. Where does the woman want to get married?A. In a church.B. In the open air.C. In a country house.4. What does the woman think of the decision to build a new hospital?A. It is a waste of time.B. It is a waste of money.C. It should have been built earlier.5. What is the woman doing?A. Asking for permission.B. Making a complaint.C. Ordering a dish.听下面5段对话或独白。

2016-2017学年度下学期期中考试高二英语试卷第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. Where does the conversation probably take place?A. In a school.B. In a restaurant.C. At an airport.2. What does the woman probably do?A. A desk clerk.B. A doctor.C. A teacher.3. What will the man do this evening?A. See a film.B. Have evening lessons.C. Give a speech.4. What was the woman doing then?A. She was reading.B. She was writing.C. She was cooking.5. Who does Mrs. Jones want to come over?A. A salesman.B. A heater repairman.C. An electrician.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，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6. Who is going to have a birthday party?A. Mrs. Green.B. Mr. Smith.C. Mr. Green.7. Whom will the woman go to the party with?A. Her sister.B. Her husband.C. Her son.听第7段材料，回答第8、9、10题。

吉林省实验中学2017届高三年级第四次模拟考试英语学科试卷考试时间：120分钟满分：150分命题人：刘妍君审题人：马中午2016年12月24日本试卷分为第I卷（选择题）和第II卷（非选择题）两部分。

第I卷（选择题共100分）第一部分听力（共两节，共20小题；每小题1.5分，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.What does the man like about the play?A. The story.B. The ending.C. The actor.2.Which place are the speakers trying to find?A. A hotel.B. A bank.C. A restaurant.3.At what time will the two speakers meet?A. 5 : 20.B. 5 : 10.C. 4 : 40.4.What will the man do?A. Chang the plan.B. Wait for a phone call.C. Sort things out.5.What does the woman want to do?A. See a film with the man.B. Offer the man some help.C. Listen to some great music.第二节（共15小题；每小题1.5分，满分22.5分）听下面五段对话或独白，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。

2016-2017学年度第二学期高二期中六校联考化学试卷命题人：宝坻一中张立杰芦台一中于树洋说明：1.本试题分Ⅰ、Ⅱ两卷，试卷的答案应按照要求填涂到答题卡上可能用到的相对原子质量 H 1 C 12 O 16第Ⅰ卷（共45分）一、选择题（本题包括15小题，每题只有一个正确答案，每题2分共30分）1．下列化学用语正确的是：A. 羟基的电子式：B. 聚丙烯的结构简式：C. 乙烯的结构简式：CH2CH2D. 苯甲酸的结构简式：2．乙烯的相关转化关系如图，下列说法正确的是A. 1mol聚乙烯含有的原子数目为6N AB. CH3 OCH3与甲互为同分异构体C. X为C12D. 甲→乙反应类型为取代反应3．1mol某链烃最多可与2mol H2发生加成反应生成化合物A，化合物A 最多能与12mol Cl2发生取代反应生成化合物B，则下列有关说法正确的是( )A．该烃分子内既有碳碳双键又有碳碳三键B．该烃分子内碳原子数超过6C．该烃能发生氧化反应和加聚反应D．化合物B有两种同分异构体4．下列实验处理可行的是（）①．将与NaOH的醇溶液共热制备CH3—CH═CH2②．向甲酸和甲醛的混合物中加入氢氧化钠溶液，中和甲酸后，加入新制的氢氧化铜加热——检验混合物中是否含有甲醛③．向丙烯醛（CH2=CH—CHO）中滴入KMnO4(H+)溶液，观察紫色褪去，能证明结构中存在碳碳双键④．实验时手指不小心沾上苯酚，立即用70o以上的热水清洗⑤．用溴水除去混在苯中的己烯,分液得到纯净的苯⑥．将电石与水反应产生的乙炔通入溴水中，溴水褪色，证明乙炔和溴水发生了加成反应A．只有① B．只有①④ C．只有①③④⑥ D．都不能5、除去下列物质中所含少量杂质(括号内为杂质)，所选用的试剂和分离方法能达到实验目的的是A．硝基苯（硝酸） NaOH溶液分液B．乙烯（二氧化硫）酸性高锰酸钾洗气C．乙酸乙酯（乙酸） NaOH溶液蒸馏D．苯（苯酚）溴水过滤6、某醇在适当条件下与足量的乙酸发生酯化反应，得到的酯的相对分子质量a与原来醇的相对分子量b的关系是a=b+84，有关该醇应该具有的结构特点的描述正确的是A．该醇分子中一定具有甲基B．该醇分子中一定没有甲基C．该醇分子中至少含有三个碳原子D．该醇分子中具有两个醇羟基7．CH3—CH===CH—Cl有下列反应或现象：①取代反应，②加成反应，③消去反应，④使溴水褪色，⑤使酸性KMnO4溶液褪色，⑥与AgNO3溶液生成白色沉淀，⑦聚合反应。

长春市实验中学2023-2024学年上学期期中试卷高一英语试卷一、选词填空-句子（本大题共1小题，共15分）1.On my way home， traffic was held up in front of the University stadium-it is a busy area (1) I saw a young woman trying (2) （ get） a tiny （maybe 8 weeks old） cat out of (3) road． The kitten （小猫） (4)（ terrify） and she finally got the little one but dropped him． The kitten ran to the roadside and lay there in shock． I pulled over and got out as she had gone back into her truck （maybe since the kitty was out of the road her part was done） and (5) （simple） took him to safety．As I was doing so， two beautiful young men pulled over and asked if I needed help． Well，I said，maybe． I showed them the kitten and put him (6) the cab of their truck． They were instantly in love． They also knew where the (7) （ shelter） were in town．I told them I could take the kitten to one if they couldn't， but they told me they would take the kitten and if they didn't keep him， they would take him to a shelter． As I left， I heard one say， "kittens deserve (8) （ well）than this．" There (9) （ be） some truly wonderful young people out there． My heart broke with (10)（ happy） to see these guys caring so obviously．二、阅读理解（本大题共20小题，共45分）AFar, far below your feet lies a source of nearly endless energy. Earth's core is about as hot as the surface of the Sun, so hot that it melts the rocky layers above it into magma, or liquid rock. Wouldn't it be great if we could tap into all that energy? In some places, we do!The Geysers is an area north of San Francisco in California where magma's heat turns a reservoir of underground water into steam. This region is home to 18 geothermal power plants. The steam rises up through spaces between the rocks underground, a bit like how steam pours from a teakettle boiling on a stove. The power plant has pipelines that send the steam into the turbines (涡轮机) where electricity flow is generated. Once the steam leaves the turbine, it goes into a cooling tower where it turns back into liquid. Then it's piped back into the reservoir to be reheated again. Other kinds of geothermal power plants pump hot groundwater into the power plant. Then the pressure is reduced, causing the liquid to flash into steam that turns the turbine and generates electricity flow. Oncethe steam cools and turns back into liquid, it's pumped back down into the reservoir to begin the cycle again.So why don't we all heat our homes with free steam from the earth? First, the heat has to be close enough to the surface for us to reach it. Next, there has to be plenty of underground water to be heated. Finally, there has to be a layer of rock that water or steam can flow through. So in places where all three of those things come together, geothermal energy can be a powerful renewable energy source. Besides, when a geothermal plant returns water back into the hot rocks of a reservoir, it makes the rock crack a bit, which can cause small earthquakes. There's another danger that comes with drilling near magma-pipes and other equipment might melt if they hit a pocket of magma or are caught in an eruption. One geothermal plant in Hawaii was partially buried by lava in 2018. But engineers are hopeful that the repaired plant will generate even more power. Geothermal energy isn't the answer for everywhere, but it's a piece of the puzzle to help slow climate change.2.In which part of power plants is the electricity made?A. The turbine.B. The reservoir.C. The pipeline.D. The tower.3.What prevents free steam from being widely developed according to paragraph 3?A. Hard surface and possible earthquakes.B. Changeable climate and unqualified equipment.C. Limited underground water and thin layers of rock.D. Unsuitable geological conditions and potential dangers.4.Why is the buried geothermal plant in Hawaii mentioned?A. To demonstrate the great effort that engineers made.B. To show the power that the repaired plant can generate.C. To illustrate the danger caused by drilling near magma.D. To praise the engineers who repaired the generate plant.5.What is the author's attitude towards geothermal energy?A. Unconcerned.B. Unclear.C. Doubtful.D. Approving.BBiological fieldwork can mean trips to exotic places. The most common method is to send a few eager graduate students armed with camera traps and several weeks of spare time. But perhaps not for much longer. A paper published in Current Biology suggests an easier method: simply swabbing(擦拭) nearby leaves for DNA.The DNA in question is called "environmental DNA" (eDNA for short). It refers to all the genetic informationthat animals leave behind as they go about their daily business: breathing, urinating, or interacting with their environment in any way. In recent years, genesequencing(基因测序) technology has become quick and sensitive enough to pick out genetic sequences from particular animals including humans from this eDNA.One way of doing so is simply to blow air through filters(过滤器), and then analyse them to see which animals live nearby. Drs Gogarten and Lynggaard wondered if there might be a simpler approach. Air-sampling systems can take days to do their work. Maintenance must be done, and filters must be changed. But given that eDNA is literally blowing around ecosystems, the searchers wondered if it might be collecting on leaves.The leaves of many plants are waxy(蜡质的) and somewhat sticky. The researchers theorised that eDNA might end up stuck to leaves and that it could subsequently be collected by swabbing them. They tested their theory in the dense rain forests of Kibale National Park, in Uganda. Using simple cotton swabs, and wearing masks and gloves to prevent polluting the samples with their own DNA, they visited three areas of the park and collected eight swabs at each site, and then took them back to Copenhagen for analysis.The swabs revealed the presence of 26 birds, 24 mammals, one amphibian and one fish, with each swab containing DNA from eight animals on average. More than half the samples were good enough to work out the precise species they came from.Swabbing for animals, then, seems to work. Moreover, it is cheap, easy and fast. Graduate students will have to be content spending less time sample-hunting in distant parts of the world.6.Who will benefit most from the research findings?A. Forest farmers.B. Biological graduates.C. Ambitious scientists.D. Environmental activists.7.Why was the researchers armed with masks and gloves?A. To protect the leaves.B. To avoid getting stuck.C. To stay safe from wax.D. To ensure the quality of samples.8.How is eDNA method compared with the common ways?A. More animal-friendly.B. Free of complex analysis.C. More accurate and effective.D. Economical in time and money.9.What serves as the best title for the text?A. Swabbing leaves: an easier method to track animalsB. Testing eDNA: a useful tool for animal detectionC. What the function of leaves isD. How the field work goesCBegin your global journeyAt University of Wisconsin (UW) -Eau Claire, you'll find your investment pays off well before you graduate. Because here, we believe that your journey is just as important as your destination. You will have many opportunities to develop: from internships(实习) to undergraduate research to foreign cultural experiences. We seek students who are curious, innovative and compassionate. If this sounds like you, submit your application to join our big family!Admission application processTo complete an application for admission, submit the following:1. Online application;2. $25 USD application fee;3. Evidence of English proficiency;4. Financial documentation;5. Academic records;6. Passport copy.Submit the supporting documents listed above by including them with your UW-Eau Claire specific*********************************************************************.Paying for college2023-2024 undergraduate student estimated expenses (The numbers below are in USD per academic year): Tuition and fees: $18, 460Housing and meals: $8, 800Health insurance: $1, 900Application deadlinesWe accept applications February 1-June 1 for admission the upcoming fall term (September). and August 1-November 1 for admission the upcoming spring term (February). We must receive all of your required application materials prior to the deadline. Start applying early!Check your application statusTo check your application status, as well as other important steps in the enrollment process, you must first activate your Campus Account. The information you will be able to access through your Campus Account includes the following:•View your admission decision in real time;•Track the progress of your completed next steps after admission;•Pay your enrollment fee of $500;•Sign up for Orientation (迎新会) when you are qualified.Please note that official admission decisions will always be sent via US Mail.10.Where is this text probably taken from?A. A global travel journal.B. An undergraduate course plan.C. A welcome speech for freshman.D. A college application guide.11.Which is the right time for you to apply for 2024 spring semester admission?A. September 10, 2023.B. December 1, 2023.C. February 9, 2024.D. March 16, 2024.12.What can you do by using the Campus Account?A. Pay the tuition fees.B. Download official admission offer.C. Submit application documents.D. Know about your enrollment process.DMany of us are lonelier than ever. We can go shopping and avoid speaking to a single person. Automated voice son phones and machines suck the contact and relational element out of day-to-day life, so much so that experts say that we are experiencing a loneliness disease.According to Dr. Lalitaa, loneliness is the feeling we get when our need for rewarding social contact and relationships is not met. But loneliness is not always the same as being alone. Loneliness is a state of mind linked to wanting human contact but feeling alone. People can be alone and not feel lonely, or they can have contact with people and still experience feelings of loneliness.Loneliness is a universal human emotion that is both complex and unique to each individual. There are many contributing factors to loneliness, such as illness, relationships breaking down, moving country, changing jobs ornot being understood by co-workers, retiring, starting university, etc.We cannot underestimate the impact loneliness can have on our physical and mental wellbeing. According to research, loneliness has comparable health risks to smoking 15cigarettes a day, and people who feel lonely are more likely to die earlier and suffer from heart attacks. Dr. Lalitaa says, "People often say to me, 'It's too late to meet new people as an adult.' Having human connect ion can look different for each person, but this can become a block, stopping them going out, trying new things and connecting with new people. Remember, it is never too late to make good, meaningful connections."However, don't put pressure on yourself. A meaningful relationship takes time. It is not just created overnight. Also, take some time to sit with yourself and venture(冒险) into some of the things that you like doing. "The first thing I would say is not to deny or distance the feeling. Acknowledge it and then you can choose to focus on ways to help yourself," says Dr. Lalitaa.13.How does the author clarify what loneliness is?A. By stating arguments.B. By giving examples.C. By making comparisons.D. By employing figures.14.Why is smoking cigarettes mentioned in the text?A. To explain the causes of loneliness.B. To illustrate the harm from loneliness.C. To overestimate the impact of loneliness.D. To emphasize the universality of loneliness.15.What does the underlined word "this" in paragraph 4 refer to?A. Lack of appealing reward.B. Dependence on the network.C. The regret for the passing youth.D. The idea of being too late for new relations.16.What does Dr. Lalitaa consider as priority when dealing with loneliness?A. Having new experience.B. Telling it from being alone.C. Being aware of and recognizing it.D. Making friends from all walks of life.EThere is a festival in China that has three names. Itˈs known as the Chongyang Festival. Also, it is called the Double Ninth Festival because it falls on the ninth day of the ninth month of the Chinese lunar calendar (阴历). Final ly it has been Seniorˈs Day (老人节) since 1989. This year, it fell on Oct 23rd.There are many traditions for this festival. In the past, people climbed mountains, drank chrysanthemum (菊花) wine, and wore a plant called zhuyu to celebrate it. Climbing mountains in autumn brings people close to nature and itˈs good for health. Both chrysanthemum and zhuyu are also clean plants and they can clean houses and make people healthy.In China, nine has the similar pronunciation with the word "forever", meaning long life. So the Chinese government set the day as the Seniorˈs Day in 1989—a day to respect the old. Many companies and communities organize autumn trips for old people. Young people bring elders to the countryside to enjoy nature. They also give them gifts.In China, it is a tradition to respect old people. In the past, if young people didnˈt take good care of their parents, they would be seriously punished. Now we have the 24 Filial Exemplars (《新二十四孝》). It includes 24 things we should do for elders, such as calling them up every week and going to see them more often. On this three-named festival, remember to show your love to your elders.17.Which is NOT a name for the festival?A. Chongyang Festival.B. the Double Ninth Festival.C. Seniorˈs Day.D. Youth Day.18.Which was not a tradition for this festival in the past?A. Climbing mountains.B. Calling them up every week.C. Drinking chrysanthemum wine.D. Wearing a plant called zhuyu.19.What does the underlined word "respect" in Paragraph 3 mean in Chinese?A. 思念B. 尊重C. 保护D. 照顾20.What is the main idea of the passage?A. History of Chongyang Festival.B. Introduction of Chongyang Festival.C. Traditions of Chongyang Festival.D. Symbols of Chongyang Festival.21.We can read the passage from a magazine called ______.A. American HistoryB. Chinese HistoryC. Western FestivalsD. Traditional Festivals三、阅读七选五（本大题共5小题，共12.5分）How to Be More Present Many people have a tendency to live in the past or the future. They constantly think about the past and worry about the future, and thus find it difficult to enjoy the good things in life in the here and now. You might unfortunately be one of these people. (22) Here are some tips that might help you.Notice Your SurroundingsOne way to be in the present moment is by noticing your surroundings. How often do you take time out of your day to actually look around and see what's going on? Now close your eyes and take a deep breath. (23) When you do, it's easier to be more present in the moment.Be Grateful for What You Have Now(24) If you are constantly focused on things you don't have, you aren't taking the time to appreciate what you have at this moment. One way to practice gratitude is to write a list of things you are grateful for and review that list on a daily basis. Try to write at least three things you are grateful for in your life right now.Show AcceptanceIf you want to learn how to be more present, you need to let go of how you think things should be and accept them for what they are. (25) Sometimes life is going to be different than how you want it to be. Practicing acceptance will help you let go of the things in your life that are out of your control.Find Positive Social SupportThe kind of social support you have in your life can also play an important role. Surrounding yourself with positive, supportive people will increase your own positivity and happiness levels. (26)四、完形填空（本大题共15小题，共15分）In the fall of 2008, I was looking to leave my current job in a doctor's office to explore something more (27) . So I started investigating the new world of travel nursing. With a bit of (28) , I was connected to Carlyn.At this time, I am working on all areas of my life......in the (29) of becoming a stronger, more confident person, and (30) more about who I am. Without amazing, enthusiastic and supportive Carlyn, I wouldn't be where I am today. For the past 2 years, Carlyn and I stayed in (31) through email, facebook, and a periodic phone call, becoming friends…. I had a whole view of all the things she was (32) in her life and it inspired me much.I was anxious to (33) Carlyn face-to-face for the first time. But, as soon as she (34) in front of my house, it was like we had done it a million times before. This "my friends" is the (35) of the human connection that she talks about. It takes two people from (36) to friends!Now as fate would have it, Carlyn has (37) my world. So now, I hope to repay her (38) for all that she has helped me (39) . I am fortunate to be part of a friendship that is a by-product of her (40) . She continues to inspire me and I hope to learn and meet more through her (41) .27.A. complicated B. universal C. challenging D. profitable28.A. confidence B. luck C. fear D. pride29.A. power B. hope C. absence D. sense30.A. learning B. complaining C. discussing D. worrying31.A. shape B. order C. place D. touch32.A. abandoning B. explaining C. experiencing D. delivering33.A. meet B. phone C. persuade D. inform34.A. put away B. backed down C. carried on D. pulled up35.A. trick B. power C. choice D. origin36.A. students B. workmates C. strangers D. learners37.A. influenced B. left C. explored D. enjoyed38.A. as a result B. by accident C. with a bang D. in a way39.A. suspect B. accomplish C. witness D. appreciate40.A. anxiety B. persistence C. charity D. passion41.A. recovery B. comparison C. example D. diligence五、语法填空（本大题共1小题，共15分）42. When China's first astronaut Yang Liwei blasted off into space in 2003, it was a history- making moment that declared his country's arrival (1) an emerging space power.So far, China (2) (become) a major presence in space. It now has its own permanent outpost in orbit—a (3) (full) operational space station-and routinely rotates(轮值) crews to live and work there.On Thursday, three Chinese astronauts lifted off on the Shenzhou-17 spacecraft from the Jiuquan Satellite Launch Center deep in the Gobi Desert, (4) (head) for the Tiangong space station for a six-month stay.They are the (5) (young) crew China has ever sent to space—with (6) average age of 38. Among their tasks on board is to repair the solar panels which (7) (destroy) by space debris years ago—the first time Chinese astronauts will carry out repair work outside the station.This is China's sixth manned mission to its space station since 2021. The new crew will take over from the Shenzhou-16 astronauts, (8) have been on board since May.(9) (complete) late last year, the Tiangong—or "heavenly palace" in Chinese—is one of the twospace (10) (station) currently in orbit. With a lifespan of 15 years, it could become the only one left when the NASA-led International Space Station (ISS) retires in 2030.六、书面表达（本大题共1小题，共15分）43.假定你是李华，你的英国朋友 Peter看了你在社交平台上发布的“全国爱眼日”班级活动图片后，向你了解相关情况。

河南省实验中学2016——2017学年下期期中试卷高二 理科数学命题人：孙好武 高放 审题人：杨辉涛（时间：120分钟，满分：150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()2112i iz +++=,则z =（ ） A ．3 B ．1 C ．2 D ．22.用反证法证明命题“设b a ,为实数,则方程02=++b ax x 至少有一个实根”时,要做的假设是（ ）A.方程02=++b ax x 没有实根B.方程02=++b ax x 至多有一个实根C.方程02=++b ax x 至多有两个实根D.方程02=++b ax x 恰好有两个实根 3．下列各式中值为1的是 ( )A ．10xdx ⎰ B ．()11x dx +⎰ C ．101dx ⎰ D ．12x dx ⎰4.已知曲线y ＝x 22－3ln x 的一条切线的斜率为2,则切点的横坐标为( )A ．3B ．2C ．1D.125.由曲线f (x )＝x 与y 轴及直线y ＝m (m >0)围成的图形的面积为83,则m 的值为( )A ．2B ．3C ．1D ．86.函数()x f y =在R 上满足()()88222-+--=x x x f x f ，则曲线()x f y =在点()()11f ，处的切线方程为（ ）A.12-=x yB.x y =C.23-=x y D ．32+-=x y7.分析法又称执果索因法,若用分析法证明：“设a >b >c ,且a ＋b ＋c ＝0,求证 b 2－ac <3a ”索的因应是( )A. a －b >0B. a －c >0C. (a －b )(a －c )>0D. (a －b )(a －c )<08.若函数f (x )＝x ＋bx (b ∈R )的导函数在区间(1,2)上有零点,则f (x )在下列区间上单调递增的是( )A ．(－2,0)B ．(0,1)C ．(1,＋∞)D ．(－∞,－2)9.若函数f (x )＝2x 2－ln x 在其定义域内的一个子区间(k －1,k ＋1)内不是单调函数,则实数k 的取值范围是( )A. [1,＋∞)B. [1,32) C. [1,2)D. [32,2)10.已知a ≥0,函数f (x )＝(x 2－2ax )e x ,若f (x )在[－1,1]上是单调减函数,则a 的取值范围是( ) A ．0<a <34 B.12<a <34 C ．a ≥34 D ．0<a <1211.一个机器人每一秒钟前进一步或后退一步,程序设计师设计的程序是让机器人以先前进3步,然后再后退2步的规律移动．如果将机器人放在数轴的原点,面向正的方向在数轴上移动（1步的距离为1个单位长度）．令()P n 表示第n 秒时机器人所在位置的坐标,且记(0)0P =,则下列结论中错误的是（ ）A ．(3)3P =B ．(5)1P =C ．(2007)(2006)P P >D ．(2003)(2006)P P <12.函数()()22xf x x x e =-（e 为自然数的底数）的图象大致是（ ）.二、填空题（本大题共4小题，每小题5分，共20分）13.已知函数()()1ln 1f f x x x'=++,则()1f ' ＝______． 14.=---⎰dx x x ))1(1(12.15.已知曲线()ln f x x =在点()()00,x f x 处的切线经过点（0,－1）,则0x 的值为_____． 16.函数()3123f x x x =-+，()3x g x m =-,若对[]11,5x ∀∈-,[]20,2x ∃∈,()()12f x g x ≥,则实数m 的最小值是 ． 三、解答题（本小题共70分，解答应写出文字说明、证明过程或演算步骤） 17.（本小题满分12分）已知i 是虚数单位,复数1z 满足()()1211z i i -+=-． （1）求复数1z ；（2）若复数2z 的虚部为2,且21z z 是实数,求2z ．18.（本小题满分12分）设数列{a n }的前n 项和为S n ,且对任意的自然数n 都有：(S n －1)2＝a n S n .(1)求S 1,S 2,S 3；(2)猜想S n 的表达式并证明．19.（本小题满分12分）已知函数()ln 1,.f x x ax a R =++∈ （Ⅰ）求()1f x x =在处的切线方程；（Ⅱ）若不等式()0f x ≤恒成立,求a 的取值范围20.（本小题满分12分）若函数()()xx e x a x f x1ln 2++-=在()20，上存在两个极值点，求a 的取值范围。

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春考班）(时间:60分钟，分值：80分)第Ⅰ卷（选择题共65分）(提示:把第I卷1-55的答案涂到答题卡上）一、英语知识运用（本大题共20个小题,每小题1分,共20分。

在每小题列出的四个选项中,只有一项符合题目要求，请将符合题目要求的选项选出）( )1 We often sing English song before class.A。

/ B. a C. an D。

the（）2。

—______ are you， Helen？—I’m OK， thanks.A。

How B。

how C。

What D。

what( ）3.He is so _______ that he can’t go to school。

A。

young B。

younger C。

youngest D.more young( ） 4. －_____________？－It was cloudyA. How is the weather？B. What is the weather like？C. How was the weather like? D。

How was the weather?( ） 5. －_______did you go last Sunday？－I went to the mountains.A. How B。

第I卷第一部分：听力（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’s the man’s telephone number?A. 8890643.B. 8890634.C. 8870634.2.Which people does the woman mention?A. British people.B. French people.C. Chinese people.3.Who wasn’t happy with Fred?A. The guests.B. His dad.C. The man.4.What does the woman want the man to do?A. Come to the party.B. Visit her new office.C. Help her buy a bottle of wine.5.Which of the following is TRUE about Arnold?A. He was lucky last week.B. He passed his driver’s test.C. He had practiced driving for a long time.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。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

◆听第6段材料，回答第6、7题。

6.Why won’t the woman go to the movies?A.She has to review her lessons.B.She has seen the movie before.C.She doesn’t want to go with the man.7.What does the man think about the woman?A.She has studied hard.B.She studied very well.C.She won’t pass the exam.◆听第7段材料，回答第8至10题。