东海高级中学2020—2021学年度第一学期第三次月考

江苏省连云港市东海中学2020-2021学年高一数学文月考试卷含解析一、选择题：本大题共10小题，每小题5分，共50分。

在每小题给出的四个选项中，只有是一个符合题目要求的1. 函数，的图像与直线的交点有（）A．1个 B． 2个 C．3个 D．0个参考答案：A2. 已知平面区域，直线和曲线有两个不的交点，它们围成的平面区域为M，向区域?上随机投一点A，点A落在区域M内的概率为．若，则的取值范围为（）A. B. C. D.参考答案：D【分析】判断平面区域，利用特殊值法排除选项，然后利用特殊法，即可求解相应概率的范围，得到答案．【详解】由题意知，平面区域，表示的图形是半圆是半圆以及内部点的集合，如图所示，又由直线过半圆上一点，当时直线与轴重合，此时，故可排除，若，如图所示，可求得，所以的取值范围为．【点睛】本题主要考查了集合概型的应用，其中解答中判断平面区域，利用特殊值法排除选项，然后利用特殊法，求解相应概率的范围是解答的关键，着重考查了分析问题和解答问题的能力，属于中档试题．3. 若是第四象限角，则下列结论正确的是（）A．B．C．D．参考答案：D4. 在△ABC中，∠A,∠B,∠C所对应的边分别为a,b,c,若，则∠B等于（）A. 45°B. 105°C. 15°或105°D. 45°或135°参考答案：C【分析】根据题中条件，结合正弦定理，先求出，再由三角形内角和为，即可求出结果.【详解】因为在中，，由正弦定理可得，所以，所以或，因此或.故选C5. 若集合A={x|x2-x＜0},B={x|0＜x＜3},则A∩B等于（）A.{x|0＜x＜1}B.{x|0＜x＜3}C.{x|1＜x＜3}D.￠参考答案：A略6. 如图所示的直观图中，O′A′=O′B′=2，则其平面图形的面积是（）A．4 B．C．D．8参考答案：A【考点】平面图形的直观图．【分析】由斜二测画法还原出原图，求面积．也可利用原图和直观图的面积关系，先求直观图面积，再求原图面积．【解答】解：由斜二测画法可知原图应为：其面积为：S==4，故选A．【点评】本题考查直观图与平面图形的画法，注意两点：一是角度的变化；二是长度的变化；考查计算能力．7. 如图所示，阴影部分的面积是的函数．则该函数的图象是：参考答案：A8. 函数在[2，3]上最小值是（）A．1 B．2 C．3D．5参考答案：B9. 连续两次抛掷一枚质地均匀的硬币，出现正面向上与反面向上各一次的概率是（）A. B. C. D.参考答案：C【分析】利用列举法求得基本事件的总数，利用古典概型的概率计算公式，即可求解．【详解】由题意，连续两次抛掷一枚质地均匀的硬币，基本事件包含：（正面，正面），（正面，反面），（反面，正面），（反面，反面），共有4中情况，出现正面向上与反面向上各一次，包含基本事件：（正面，反面），（反面，正面），共2种，所以的概率为，故选C．【点睛】本题主要考查了古典概型及其概率的计算问题，其中解答中熟练利用列举法求得基本事件的总数是解答的关键，着重考查了分析问题和解答问题的能力，属于基础题．10. 若a，b，c都大于0，则直线ax+by+c=0的图象大致是图中的（）A．B．C．D．参考答案：D【考点】直线的一般式方程．【分析】直线ax+by+c=0化为：y=﹣x﹣．可得a，b，c都大于0，可得﹣＜0，﹣＜0．即可得出．【解答】解：直线ax+by+c=0化为：y=﹣x﹣．∵a，b，c都大于0，∴﹣＜0，﹣＜0．∴直线ax+by+c=0的图象大致是图中的D．故选：D．二、填空题:本大题共7小题,每小题4分,共28分11. 直线 l：（2m+1）x+（m+1）y﹣7m﹣4=0（m∈R）被圆C：（x﹣1）2+（y﹣2）2=25 所截得的最短的弦长为．参考答案：4【考点】直线与圆的位置关系．【分析】由题意可得直线l经过定点A（3，1）．要使直线l被圆C截得的弦长最短，需CA和直线l 垂直，利用勾股定理可得结论．【解答】解：圆C：（x﹣1）2+（y﹣2）2=25的圆心C（1，2）、半径为5，直线l：（2m+1）x+（m+1）y﹣7m﹣4=0，即 m（2x+y﹣7）+（x+y﹣4）=0，由，求得x=3，y=1，故直线l经过定点A（3，1）．要使直线l被圆C截得的弦长最短，需CA和直线l垂直，|CA|==，∴最短的弦长为2=4．故答案为4．【点评】本题主要考查直线过定点问题，直线和圆的位置关系，勾股定理，属于中档题．12. 已知函数那么．参考答案：2略13. 幂函数的图像经过点，则的值等于参考答案：14. 已知参考答案：【知识点】平面向量数量积的性质及其运算律．解：∵∴由此可得∴故答案为：【思路点拨】先计算出向量的数量积的值，再根据向量模的定义，计算出，从而得出的长度．15. 下列四个命题：①函数在上单调递减；②若函数在区间上单调递减，则;③若，则；④若是定义在上的奇函数，则．其中正确的序号是．（填上所有正确命题的序号）参考答案：②④16. 已知f(x)是定义在R上的不恒为零的函数，且对于任意实数、满足：，，，，考察下列结论：①；②f(x)为偶函数；③数列{b n}为等差数列；；④数列{a n}为等比数列，其中正确的是__________.（填序号）参考答案：①③④【分析】令，得，令得，解得：，可知①正确；用特例，，故不是偶函数，②错误；令，可得：，两边同除以有：，符合等差数列定义，所以③正确由③可得，，，所以，故数列是等比数列.所以④正确。

高三年级语文月考试卷第Ⅰ卷（选择题共42分）一、（18分，每小题3分）1、下列各句中注音不正确．．．的一组为（）A、①远去的燕子啊．（ya），却又回过头来，俯向大地，在一片桦树林上久久盘旋。

②这精美的贝壳原来是上苍精心制作的礼物啊．（wa ）B、①翠翠看着天上的红云，听着渡口飘来乡生意人的杂乱的声音，心中有些薄（báo ）薄的凄凉。

②虽是日薄．（bó）西山，可那一缕苍凉依然震撼人们的心田。

C、①鼓足干劲（jìn），力争上游。

②疾风知劲（jìng）草。

D、你这一着（z hāo）真高，我们正在着（zháo）手做这项工作。

2、下列词语中书写完全正确．．的一组是（）A、诡秘掂量名门望族嘻皮笑脸B、寒暄厮打两全齐美筚路蓝缕C、飘缈遴选宵衣旰食怙恶不悛D、修葺亵渎脉搏微弱原物璧还3、下列各句中标点符号使用规范．．．．的一项为（）A、白话文（又叫语体文，就是用现代语写录的语言）从什么时候起用作小学教材，我记不真切了，大概七、八年前吧。

B、《琵琶行》（并序）C、“今天好热啊！——你什么时候去上海？”张子亮对刚刚进门的王余为说。

“我明天一大早就走。

你有什么事要我帮忙吗？”王余为总是那么热情。

D、我家阳台上摆满了迎春、月季、石榴、木桃……等，一年四季，花开不断。

4、依次填入下列各句横线处的词语，最恰当．．．的一组为（）①广州地铁首批非接触IC卡车票已于6月28日一号线开通三周年之际，以替代原来的磁卡车票。

②由于高速公路的迅速发展，加快了珠江三角洲与港奥地区的物资交流速度。

③三月的北国，虽然春寒依旧料峭，可那残雪已经开始，小草正在冲破僵土，春天的倩影正在缓缓向我们走来。

④少数“台独”分子蛊惑人心，将台湾从祖国分裂出去，决没有好下场。

A、起用进而溶化妄图B、启用从而融化妄图C、启用从而溶化企图D、起用进而融化企图5、下列各句中，加点成语使用错误．．．．的一项是（）A、“2018年世博会”申办尘埃落定．．．．，中国上海赢得了举办权。

东海高级中学高一年级第三次月考语文试题参考答案1．①不期而至。

②侵袭万物。

③滔滔不绝地刮。

④卷起尘土。

2．都用了拟人的修辞。

（1分）作用：一是都非常形象、生动地描摹出了“时钟”和“石榴花”的样子。

（1分）二是写“墙上的时钟耷拉着耳朵”用来说明“我与蜘蛛对视”的时间之长；（1分）写“窗台上的石榴花”的“无所事事”用来反衬蜘蛛经历风险为“生”而忙的场景。

（1分）3．（1）它或她都来自一场风，身不由己地飘荡，在飞扬的尘土里四处寻找生的可能。

（2）它或她都是卑微的生命，但都平静地述说一辈子的风险，也延续了一辈子的风尘之旅。

（3）它或她或许用尽一生的气力也走不出这个风沙弥漫的季节，但还是在走。

4．本题是开放题，只要能联系人生社会的实际来谈即可。

示例：万物（包括人）都不可能顺利地走完自己的生命历程，总会有预想不到的事情要发生，尤其是当灾难来临时，我们应该从容面对，要想出解决问题的办法，千万不要自暴自弃，要对生活充满信心。

“风停了，尘土落下”，意味着灾难过去之后，虽然有留下的“烂摊子”，但我们仍然要燃起生命的火种，继续前行。

5．B（期：约定期限）6．C（都是介词，被。

A是/竟然，却；B因为/介词，用；D在/到）7．C（“他的政治军事才干却一直没有施展的机会”有误）8．评分标准：（1）省略、始、速；（2）以、下而从、故事、是；（3）词类活用、弃掷逦迤、视之。

9．（1)写美丽的山色湖光是为人物设置背景，使人物与自然景物相映成趣味。

或：写山色湖光为人物出场交代背景，以景的美丽衬托人的美丽。

(2)比喻、双关——“一朵芙蕖，开过尚盈盈”，写花的美丽轻盈，其实是借出水芙蓉比喻弹筝的美人，一语双关；衬托——“何处飞来双白鹭，如有意，慕娉婷”，将白鹭人格化，或许是因为仰慕美人，或许是因为音乐动听而停息，以此衬托弹筝女的美丽或音乐的美妙。

(答案只要合情合理即可，不必拘泥于文字。

)(3)最后三小句采用欲擒故纵的手法，未正面写人、写音乐，反而写曲终人散，只见青翠的山峰仍静静地立在湖边，仿佛那哀怨的音乐仍荡漾在山水之间，萦绕在人的心头，言有尽而意无穷。

东海高级中学高二年级第三次考试东海高级中学高二年级第三次考试东海高级中学高二年级第三次考试语文试题答案1、B〔根据是对高速公路的比喻的理解。

A奔月口只是地球上空的某个空间位置，而并非是“可以凭肉眼看见的天空中的一个点〞.C 共有三次变轨.一次小的变轨,两次大的变轨。

D“发射窗口〞指的是“火箭发射〞的时间段,在卫星从奔月口出发的时间之前，不可能“同时〞。

〕2、B3、B根据第四段内容可知，卫星变轨次数不仅与测控视野覆盖范围有关，还和调整卫星误差有关。

测控范围扩大并不一定就可以减少卫星变轨次数.4．D〔弟，副词，只管。

〕5．C6．D〔“还在布衣时就有野心〞有误。

〕7．〔1〕皇上曾经随口地和韩信议论将军们的高下,认为各有长短。

〔2〕韩信就和家臣商量，夜里假传诏书赦免各官府服役的罪犯和奴隶，打算发动他们去袭击吕后和太子。

〔3〕假使韩信能够谦恭退让，不夸耀自己的功劳,不自恃自己的才能，那就成为贤者了。

他在汉朝的功勋可以和周朝的周公、召公、太公这些人相比，后世子孙就可以享祭不绝。

8、〔1〕颔联刻画了诗人年事已高和安详悠闲的精神风貌。

〔2分〕〔2〕表现了诗人的悠闲隐居之乐和对友人的真切情谊。

〔2分〕9、〔1〕前六句是借景抒情〔或间接抒情〕,后两句是直抒胸臆〔或直接抒情〕.〔每小点1分，共2分〕〔2〕、自月升到月落，诗人不曾合眼,身倦；诗人心事重重，彻夜难眠,心倦。

〔每小点1分，共2分〕10、省略11、①少年时只会背诵而不知其意.②青年时自以为心中有了王维、有了一种超脱世俗的心态,而与实际相差甚远。

③在经历了无数生命的体验和阅历的堆积之后〔或：真正进入了人生的生存程序之后〕,才真正悟出了人应当要有明月清泉般的高洁心灵〔或要有青松翠竹般甘于寂寞并能保持独立的人格.或人要紧的是心间的一泓清潭里不能没有月辉〕。

〔每点2分，如果只答“少年时不懂，青年时是自以为懂了,以后是真正懂了〞只得3分〕12、“气度和胸襟〞指的是那些“木中的祖宗〞虽遭遇各种磨难，却能默默承受、自我修复、自我完善的精神品质。

东海高级中学高一年级第三次月考语文试题（2007。

12）(命题:张士先审核:岳良中)说明：1．本试卷总分160分。

考试用时150分钟。

2．答题前，考生务必将自己的姓名、班级、考号写在答题纸的密封线内。

3．答案写在答题纸上，不写在试卷上。

考试结束后，只交答题纸。

4．本试卷分第Ⅰ卷（阅读题）和第Ⅱ卷（表达题）两部分。

第Ⅰ卷阅读题一、现代文阅读（20分）阅读下面的文字，完成1—4题。

风停了，尘土落下（关瑞）一只蜘蛛爬上了翻开的书页。

在晃动的阳光里，它不知所措，四处游移；突然静止不动，潜伏在书页的中央。

身下的文字像是隐藏了极大的秘密，还要伪装成尘土的颜色。

那些晦涩的文字，凝滞了时间和光芒，让阅读成为一种冒险，一种在荒漠中、密林里孤独的跋涉。

蜘蛛就是在这个时候，开始和我对视。

它的目光因为要穿越一些在光芒里闪耀的飞舞的尘土，因此有些疲倦，有些苍茫。

为了让这种对视更接近某种意义，或者说是自由性灵之间的平等，我俯下身子，屏住呼吸，收拢散漫的视线，和蜘蛛对视，并且交流和风和尘土有关的思想。

来自一场风，身不由己地飘荡，落归尘土，起死回生，四处寻找生的可能，无意间爬上书页，被文字承载，然后平静地述说一辈子的风险。

期间，有几次停顿。

我点了一支香烟，喝了一口浓茶。

它朝前挪动了两步，释放了一些被隐藏的秘密，又遮住了另一些文字。

我宽容地向它微笑。

墙上的时钟耷拉着耳朵，柔软的刻度没有影子。

端坐在窗台上的石榴花，绕弄着纤纤玉指，无所事事地隔着玻璃朝外眺望风的威猛尘土的张扬。

从清晨开始，一场风不期而至，裹挟了阳光和云朵的碎片笼罩下来。

没有什么办法能够阻止风的侵袭，倒是风阻止甚至改变了人们的计划。

比如我，原本要去郊外看遍野的花朵开放，现在只能把自己关在房间里，聆听一些缥缈空灵的音乐，阅读一本似懂非懂的小说。

这个季节的风，总能透过玻璃窗细微的缝隙，和尘土一起挤进房间。

外面的风依旧滔滔不绝地刮着。

房间里的风停了，尘土落下，不容置疑地覆盖音乐和文字，覆盖和一只蜘蛛共同的述说与陈旧的回味。

江苏东海高级中学高二年级第三次考试语文试题（命题人：岳良中审核：张士先）〔说明：试卷总分160分，考试时间150分钟。

答案写在“答案纸”上，作文写在“作文纸”上。

〕从今天起，做一个幸福的人，语基、阅读，写作，神游世界。

从今天起，关心语言和文字，给每一道题每一个空格书写一个珍贵的答案。

你有一段旅程，要与创作“不虚表”“不隐恶”的司马迁会面，更要与被称为“诗中之龙”的李杜神游龙腾虎掷的诗的森林……好，下面请微笑着开始这二个半小时的旅程吧！第Ⅰ卷阅读题（68分）一、科技文阅读（9分，每小题3分）阅读下面文章，完成1—3题。

嫦娥一号探月卫星的奔月口10月24日，嫦娥一号探月卫星奔向遥远的月球。

发射后的未来几天内，嫦娥一号探月卫星首先将围绕地球，划出逐渐增大的三个椭圆痕迹，以期进入“奔月口”。

“奔月口”实际上是地球上空的一个点，嫦娥沿预定的轨道，必须从那个点出发，飞向奔月轨道，才能跟运动中的月亮碰上。

用中国探月工程副总设计师龙乐豪的话说，“奔月口”像一个高速公路的出口。

他说，“必须准确找到这个出口，否则不知道下一个出口在哪里，不知道要兜多远呢。

”最早划出的，是一个近地点200公里、远地点51000公里、周期为16小时的环地球椭圆。

在这条轨道上，嫦娥一号将在第二个远地点作一次小的变轨，嫦娥一号卫星发动机点火，将它的近地点提升到600公里，而远地点保持51000公里不变。

随后，嫦娥一号发动机再次点火，第一次大的变轨发生，近地点保持600公里不变，而远地点达到71400公里，轨道周期被调整为24小时。

再次到达近地点时的卫星，将作出第二次大的变轨，将轨道周期增加到48小时，使远地点高度达到约13.7万公里。

这一系列变化，看起来显得繁冗，事实上却深具用心。

一位权威人士介绍，如果卫星不做上述环地运动，直接进入奔月口，为克服重力，发动机会运转很长时间，会消耗更多的燃料，也可能伤及发动机本身。

同时，国内的测控能力有限，嫦娥一号几个近地点都是在同一地区，卫星相对于地球的位置基本不变，按照预想，重要的变轨点争取都在中国的测控视野覆盖范围内，便于测控。

东海高级中学—20XX学年度第一学期高二第三次月考英语试题范围: Units 6-8 BII 考试时间: 120分钟，共150分命题人：刘恩县第一卷（三部分，共115分）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. What time is it?A. 8:00.B. 9:00.C. 10:00.2. What is Peter going to do this afternoon?A. Play basketball.B. Ride a bicycle.C. Go swimming.3. How much is the woman going to pay?A. 20 pence.B. 25 pence.C. 30 pence.4. How will the man travel to New York?A. By car.B. By train.C. By plane.5. What is the woman doing?A. Making a suggestion.B. Asking for help.C. Offering advice.第二节：(共15小题：每题1.5分,满分22.5分)听下面5段对话或独白，每段对话后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。

听完每段对话或独白前，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。

每段对话读两遍。

听第6段对话，回答6至7题。

6. What does the man do?A. He's an engineer.B. He's a salesman.C. He's a traveler.7. What's the relationship between the two speakers?A. They are friends.B. They are strangers.C. They are shop assistant and customer.听第7段对话，回答8至9题。

2020-2021学年浙江市舟山市东海中学高三英语第三次联考试题及答案解析第一部分阅读（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A、B、C、D四个选项中选出最佳选项ASevenhugs HugOneDo you want to improve the quality of your sleep? Sevenhugs has created HugOne that tracks different sleep patterns to help families consistently rest better. There are dozens of devices and tools devoted to monitoring the sleep. But, HugOne is the world’s first family smart home sleep system, which integrates a calculation rule for sleep patterns of children and adults.HugOne is a well-designed product, full of a sense of science and technology. It connects to a number of smaller sensors called “minihugs”, which are placed on the edge of each bed. They monitor the sleep patterns and other data coming from the person sleeping in that bed. The data arethen sent to an app on the smartphone.● The benefits of HugOne include:* Having a smart alarm clock on the app as HugOne learns your sleep cycle and automatically sets and sounds to when the best moment in your sleep cycle is identified.* Monitoring temperature and humidity in your bedroom as well as indoor air quality for the main living space.* Linking with smart lamps and thermostats, allowing users to fall asleep with sunset light and preferred nighttime temperatures, and wake up to sunrise light and preferred daytime temperatures.* Ensuring safety from electronic transmissions when you sleep-when the minihug senses a presence in bed, it shuts off its electronic transmissions and starts recording sleep data and sending them to the app.● The following are selected from customers’ comments:I prefer HugOne, since it’s convenient to use. I simply place the minihug in the corner of my bed under the sheet and it goes to work monitoring my sleep cycle. It’s really good.—Robert Compton● HugOne available for purchase includes:I think HugOne is a humanized product. It’s shareable, and I’ve connected eight minihugs to the HugOne base in my house. All my family members think highly of it.—Chris Hanawalt HugOne will provide maximum protection for your sleep. If you want to get more detailed information, please call the sellers at 1-800-576-1899 or .Style: Sleep Tracking System＋2 Sleep SensorsColour: Blue＋Rose1. How does HugOne effectively work?A. It controls sleep patterns automatically.B. It creates smart systems for a better sleep.C. It collects sleep data through the minihugs.D. It makes a calculation of the data sensors need.2. According to the passage, HugOne can ______.A. adjust temperature, humidity and air quality in bedroomsB. update the sleep cycles by aid of an alarm clock on the appC. record sleep data when there are electronic transmissions in bedD. help users fall asleep and wake up naturally with preferred temperatures3. The passage is made more believable by ______.A. providing statisticsB. drawing a comparisonC. giving a demonstrationD. using recommendationsB“They’re harming your brain.” “They’re ruining your eyes.” “They’re turning you into a violent person.” The words said publicly against video games are so common, but are these worries founded on actual science? Countless studies have offered different opinions on whether video games are bad for you. We’ve rounded up the most notable reports and studies below, so you can weigh up the evidence for yourself.In 2013,psychologist(心理学家) Simone Kuhn studied the influences of spending long hours on video games on the brains of young adults and found that several areas became bigger than before. These areas are connected with highercognitive functions(认知功能), memory formation andfinemotor(精细运动) function.Last year, psychologists said that video game players who favour violent games are more likely to be violent when offline. Dr. Mark Appelbaum of the American Psychological Association said that there was a relation between violent video game use and increases in violent behaviour.Dr. Daphne Bavelier is an expert in the field of Brain & Cognitive Sciences. Bavelier presented the audiencewith a colour-word test, where non-gamers are easily puzzled by the test, and those who spend long periods playing on their computers are more likely to pass the test with flying colours.“Actually, those video game players have many other advantages in terms of attention,” said Bavelier, “and one part of attention which is also improved for the better is our ability to follow the movements of objects.”“So, in a sense, when we think about the influence of video games on the brain, it’s very similar to the influence of wine on the health. There are some very poor uses of wine. There are some very poor uses of video games. But when drunk in reasonable amounts, and at the right age, wine can be very good for health,” said Bavelier.4. What can be learned from Simone Kuhn’s study？A. Video games make you happier.B. Video games make your brain grow.C. Video games play a key role in memory.D. Video games teach you how to learn fast.5. What was Dr. Mark Appelbaum’s attitude towards video games？A. He was against them.B. He was hopeful of them.C.He was in favour of them.D. He was uncertain about them.6. Which of the following may Dr. Daphne Bavelier agree with？A. Video games fix attention problems.B. Video games make kids do well in exams.C. Video games encourage violent behaviour.D. Video games help increase colour knowledge.7. Why are the uses of wine mentioned in the last paragraph？A. To remind people to avoid video games.B. To show the disadvantages of video games.C. To help people learn more about video games.D.To ask people to make good use of video games.CFollowing the Famous Silk RoadsThe Silk Roads were a networkof ancient trade routes that extended from East Asia all the way to theMediterranean. A key section of the Silk Roads is the Chang’an-Tianshan corridor（走廊）, whichstretchesovera distance of around 5,000 kilometres through China, Kazakhstan and Kyrgyzstan, covering a total of 8,700 kilometres of trade routes. The three countries jointly pursued an application for UNESCO World Heritage (遗产) status which contained detailed research on the 33 sites along the corridor. This made history as the first successful multinational World Heritage application.The starting point of the corridor and the entire Silk Roads network isXi’an, inShanxiProvince. Further west on the Silk Roads, the geography gradually changes from wild deserts to high, snow-capped mountains to vast grasslands as the routes pass through theTianshanMountainsand emerge in the valleys ofCentral Asia. Although the Chang’an-Tianshan corridor of the Silk Roads ends here, the network continues westwards until it reaches theMediterranean.The corridor began to develop in the 2nd century. Assigned by the emperor, the ambassador Zhang Qian journeyed from Chang’an toCentral Asia, seeking to build bridges between the Han Dynasty and the Western Regions. Following Zhang’s efforts, trade routes took shape and relationships were strengthened between the major powers of the time, with the routes network reaching as far as theRoman Empire.Economic activities along the routes network were not limited to trade in silk. They contributed many other items to the marketplace of goods. The routes were busy with camels carrying loads of goods and businessmen selling everything imaginable.China’s exports included silk, porcelain, ironware and tea, while horses, jewellery, spices and grapes were all imported over vast distances from the West.In addition to trade exchange, the network served as a bridge for cultural exchange which shaped the evolution of science, art, technology and many other areas in societies along the network. Astronomy and mathematics were introduced toChinafromIndiaandArabia; important Chinese inventions such as papermaking and printing were brought to the West.All of these activities contributed to a great age of expansion as trade and cultural exchanges gave people access to new goods,knowledge and ideas. These routes connected Eastern and Western civilizations, which achieved a shared development. The addition of the Chang’an-Tianshan corridor to the UNESCO World Heritage List is a milestone in recognition of the Silk Roads as a crucial part of humanity’s common heritage.8. The key section of the Silk Roads is________.A. the MediterraneanB. Xi’an, inShanxiProvinceC.KazakhstanandKyrgyzstanD. the Chang’an-Tianshan corridor9. The underlined word “stretches” in Paragraph 1 is close in meaning to________.A. standsB. spreadsC. movesD. flies10. Zhang Qian travelled from Chang’an toCentral Asiato________.A. export silk, porcelain, ironware and teaB. purchase horses, jewellery, spices and grapesC. seek help from the most powerful western countriesD. build bridges between his country and other countries11. What was the role of the Silk Roads according to the passage?A. It helped to change the wild deserts to grasslands.B. It was recognized by the UNESCO asChina’s heritage.C. It speeded up the development of the countries involved.D. It started a trade competition between countries along the way.DWe touch our faces all the time, and it had never seemed to be a big problem—until COVID-19 arrived. Touching our faces—the "T-zone" of our eyes, nose and mouth in particular—can mean giving ourselves the deadly virus.This is why organizations like the Centers for Disease Control and Prevention (CDC) have suggested that we avoid touching our faces. "Just stop this simple behavior," William Sawyer, founder of Henry the Hand, a nonprofit organization that promotes hand hygiene (卫生), told The Washington Post. "It's the one behavior that would be better than any vaccine (疫苗) ever created."Yet, stopping this "simple" behavior might be harder than you think because it's already hardwired (固定存在于) into our system.Some face touchingis an automatic reflex (反射) —like when there is an itch (痒) on your nose, you'll scratch (挠) it without thinking. According to CNBC, a 2014 study found that touching your face also helps to reduce stress and regulate emotions. For example, you're more likely to do it when you feel awkward or embarrassed. According to Dacher Keltner, a psychologist at the University of California Berkeley, US, this action may also come with a social function: When you are talking to someone and want to change the subject, for example, touching your face is like "the curtains on a stage, closing up one act of the social drama, ushering (引导) in the next," Keltner told the BBC.Moreover, face-touching in almost all of these occasions is subconscious, which means it's very hard to change "because you don't even know you're doing it", said Sawyer. But you're not alone. In a 2015 study, wherea group of medical students were filmed in class, it was found that they touched their faces an average of 23 timesan hour—with 44 percent of the touches being in the "T-zones". That was particularly surprising since medical students were supposed to know better.Since it's so hard to shake the habit, maybe the easiest way is to wash our hands more often. This way, we can be sure that our hands are free from the novel coronavirus.12. What do the first two paragraphs talk about?A. The best way to fight COVID-19B. How organizations are fighting COVID-19.C. Typical hand hygiene problems in the fight against COVID-19.D. The necessity to avoid touching our faces to fight COVID-19.13. Why is it hard for people to stop touching their faces?A. It makes people feel more confident.B. Many are unaware of this behavior's risks.C. They usually do it automatically and subconsciouslyD. Many think the action helps them express their emotions.14. Which of the following is a social function of touching faces, according to the text?A. Using it as a sign to change the topicB. Bringing a conversation to an end.C. Showing an interest in the ongoing subject.D. Making others feel relaxed while talking.15. What is the author's purpose in mentioning a 2015 study on a group of medical students?A. To give tips on how to stop touching faces.B. To prove that it is common for people to touch their faces.C. To show it is impossible to shake the habit of touching your face.D. To show how hygiene awareness helps people avoid touching their faces.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

2020-2021学年浙江省宁波市东海实验中学高三数学理月考试卷含解析一、选择题：本大题共10小题，每小题5分，共50分。

在每小题给出的四个选项中，只有是一个符合题目要求的1. 设球的半径为时间t的函数。

若球的体积以均匀速度c增长，则球的表面积的增长速度与球半径( )A．成正比，比例系数为C B．成正比，比例系数为2CC．成反比，比例系数为C D．成反比，比例系数为2C参考答案：D2. 已知定义在上的函数满足，且，，若有穷数列（）的前项和等于，则等于( ) A．4 B．5 C．6 D． 7参考答案：B，因为，所以，即函数单调递减，所以.又，即，即，解得（舍去）或.所以，即数列为首项为，公比的等比数列，所以，由得，解得，选B. 3. 设x,y满足，则（）A.有最小值2，无最大值B.有最小值－1，无最大值C.有最大值2，无最小值D.既无最小值，又无最大值参考答案：B4. 若二项式的展开式中含有非零常数项，则正整数的最小值为A．3 B．5 C．7 D．10参考答案：B展开式的通项公式是T r＋1=x3n?3r x?2r=x3n?5r，若二项式的展开式中含有非零常数项，则3n?5r = 0，即n(，1，2，…，n)，故当时，此时n的最小值是5. 选B.5. 定义域为R的函数满足，当时，则当时，函数恒成立，则实数的取值范围为（）A. B. C. D.参考答案：B6. 在实数0，－1.5,1，－中，比－2小的数是（）A. 0B. －1.5C. 1D. －参考答案：D分析：实数大小比较的法则：①正数都大于0；②负数都小于0；③正数大于一切负数；④两个负数，绝对值大的其值反而小，据此判断即可．详解：根据实数比较大小的方法，可得<-2＜-1.5＜0＜1，∴最小的数是．故选D．点睛：此题主要考查了实数大小比较的方法，要熟练掌握，解答此题的关键是要明确：①正数都大于0；②负数都小于0；③正数大于一切负数；④两个负数，绝对值大的其值反而小．7. 已知集合A﹣{1，2，3，4，5，6，7，8，9），在集合A中任取三个元素，分别作为一个三位数的个位数，十位数和百位数，记这个三位数为a，现将组成a的三个数字按从小到大排成的三位数记为I（a），按从大到小排成的三位数记为D（a）（例如a=219，则I（a）=129，D（a）=921），阅读如图所示的程序框图，运行相应的程序，任意输入一个a，则输出b的值为（）A．792 B．693 C．594 D．495参考答案：D【考点】程序框图．【专题】计算题；转化思想；试验法；算法和程序框图．【分析】利用验证法判断求解即可．【解答】解：A，如果输出b的值为792，则a=792，I（a）=279，D（a）=972，b=D（a）﹣I（a）=972﹣279=693，不满足题意．B，如果输出b的值为693，则a=693，I（a）=369，D（a）=963，b=D（a）﹣I（a）=963﹣369=594，不满足题意．C，如果输出b的值为594，则a=594，I（a）=459，D（a）=954，b=D（a）﹣I（a）=954﹣459=495，不满足题意．D，如果输出b的值为495，则a=495，I（a）=459，D（a）=954，b=D（a）﹣I（a）=954﹣459=495，满足题意．故选：D．【点评】本题主要考查了循环结构的程序框图，用验证法求解是解题的关键，属于基础题．8. 若数列满足：存在正整数，对于任意正整数都有成立，则称数列为周期数列，周期为. 已知数列满足，则下列结论中错误的是A. 若m=，则a5＝3B 若a3=2，则m可以取3个不同的值C. 若，则数列是周期为的数列D.且，数列是周期数列参考答案：D9. 已知变量满足约束条件若恒成立，则实数的取值范围为( )A. (-∞,-1]B. [-1,+∞)C. [-1,1]D. [-1,1)参考答案：【知识点】简单线性规划．E5C 解析：由题意作出其平面区域，则x+2y≥﹣5恒成立可化为图象中的阴影部分在直线x+2y=﹣5的上方，则实数a的取值范围为[﹣1，1]．故答案为：[﹣1，1]．【思路点拨】由题意作出其平面区域，则x+2y≥﹣5恒成立可化为图象中的阴影部分在直线x+2y=﹣5的上方，从而解得．10. 下列四个函数中，在区间，上是减函数的是( )....参考答案：B二、填空题:本大题共7小题,每小题4分,共28分11. 四面体ABCD中，有如下命题：①若AC⊥BD，AB⊥CD,则AD⊥BC；②若E、F、G分别是BC、AB、CD的中点，则∠FEG的大小等于异面直线AC与BD所成角的大小；③若点O是四面体ABCD外接球的球心，则O在平面ABD上的射影是△ABD的外心；④若四个面是全等的三角形，则四面体ABCD是正四面体.其中正确命题的序号是（填上所有正确命题的序号）.参考答案：①③④略12. 设数列都是等差数列,若,则______。

2020-2021学年浙江市舟山市东海中学高三英语三模试卷及答案第一部分阅读（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A、B、C、D四个选项中选出最佳选项AConservation Volunteering in New ZealandWhether you are a student, professional or a retiree (退休者), anyone is welcome to make a difference and contribute to protecting some of the most beautiful islands in the world. Choose a suitable city and travelout to your conservation (保护) site to work with local people!Duration: 1-12 weeks Dates: Throughout the yearArrival day: Friday Return day: FridayRequirement: General level of fitness Age: 18+What will I be doing?Volunteer in New Zealand and enjoy conserving the environment through activities such as:·Tree planting·Walking trail construction·Protect native birds, insects, fish and penguins·Seed collection·Weed controlYou, and a group of up to 10 volunteers, will work under the guidance of a conservation team leader. Your team leader will give you regular safety instructions, inform you of the project aims and assist you with working effectively.No previous experience is necessary to join the project. All you need is a love of the environment and a fairly good level of fitness to help out!1.Who can sign up for this conservation volunteering project?A.A retired maths teacher.B.A primary school student.C.A scientist with heart disease.D.A businessman in a wheelchair.2.What can you do on the volunteer trip?A.Protect cultural sites and go shopping.B.Enjoy local sightseeing and go fishing.C.Protect weeds and build roads.D.Collect seeds and plant trees.3.From which is the text probably taken?A.A history book.B.A travel magazine.C.A research paper.D.A novel.BThere are 195 countries in the world today but almost none of them have purple on their national flag. So what’s wrong with purple? It’s such a popular color1 today. Why would no country use it in their flag? The answer is really quite simple. Purple was just for too expensive.The color1 purple has been associated with royalty power and wealth for centuries. Queen Elizabeth I forbade anyone except close members of the royal family to wear it. Purple’s high status comes from the rarity and cost of the dye (染料)originally used to produce it. Fabric traders got the dye from a small sea snail (海螺)that was only found in the Tyre region of the Mediterranean. More than 10,000 snails were needed to create just one gram of purple; not to mention a lot of work went into producing the dye, which made purple dye so expensive.Since only wealthy rulers could afford to buy and wear the color1 , it became associated with the royal family. Sometimes, however, the dye was too expensive even for royalty. Third century Roman Emperor Aurelio famously wouldn’t allow his wife to buy a scarf made from purple silk because it cost three times its weight in gold. A single pound of dye cost three pounds of gold, which equals 56,000 dollars today. Therefore, even the richest countries couldn’t spend that much having purple on their flags.The dye became more accessible to lower-class about a century and a half ago. In 1856, 18-year-old English chemist William Henry Perkin accidentally created a man-made purple compound (化合物)while attemptingto produce an anti-malaria drug. He noticed that the compound could be used to dye fabrics, so he patented the dye, manufactured it and got rich. Purple dye was then mass-produced so everybody could afford it.Till now, a handful of new national flags have been designed and a few of them have chosen to use purple in their flag. So don’t be making any bets just yet.4. Why was color1 purple expensive in the past?A. Because only royal families were allowed to wear purple.B. Because it took a long time to get purple dye from gold.C. Because purple was worth as much as its weight in gold.D. Because purple dye used to be rare and hard to produce.5. Why did Roman Emperor Aurelio forbid his wife to buy a purple scarf?A. Because of poor quality.B. Because of long tradition.C. Because of bad taste.D. Because of high price.6. What is purple's situation now?A. Purple has been widely used on national flags.B. Purple dye is now affordable to ordinary people.C. Royal family stop using purple because it’s toocommon.D. Fewer snails are used to produce purple dye than before.7. Which of the following would be the best title for the passage?A. No Purple Flags?B. Purple vs GoldC. How to Produce Purple Dye?D. The Birth of Purple ColorCMark Bertram, 46, lost the tips of two fingers at work in 2018 when his hand became trapped in a fan belt. “It's life-changing but it's not life-ending,” he says. “Doing work is harder now. Everything is just a little different.”After two surgeries and occupational therapy, Bertram decided to make light of his condition by asking Eric Catalano, a tattoo (纹身) artist, to create fingernail tattoos. The idea made everyone in the studio laugh—until they saw the final result. “The mood changed,” Catalano recalls from his Eternal Ink Tattoo Studio. “Everything turned from funny to wow.”When Catalano posted a photo of the tattoos, a pair of fingernails that looked so real that no one could believe their eyes, he had no idea the image would eventually be viewed by millions of people around the world.The viral photo pushed Catalano, 40, further into the world of paramedical (辅助医疗的) tattooing. Now people with life-altering scars come from as far away as Ireland to visit his shop. They enter Eternal Ink looking for the artistic healing they saw online. Using flesh-toned (肉色的) inks and a needle, Catalano transforms his clients' view of themselves.Leslie Pollan, 32, a dog breeder in Oxford, was bitten on the face by a puppy in 2014. She underwent countless surgeries to correct a scar on her lip.“Plastic surgery gave me no hope,” she says. “So I looked for other options.” She ultimately traveled six hours to meet with Catalano. He hid Pollan's lip scar, giving her back a piece of her confidence.“ You don't understand until you've been through it,” Pollan says. “It made me have a different look on life.”Catalano performs up to eight reconstructive tattoos. While he charges $100 per regular tattoo, he doesn'tcharge for paramedical tattoos. “Financially, it doesn't make sense,” Catalano says. “But every time I see that emotion from my customers, I'm 100 percent sure this is something that I can't stop doing.”8. What best describes people's attitude when first hearing of fingernail tattoos?A. Indifferent.B. Ridiculous.C. Confident.D. Surprised.9. What did Catalano do to help Leslie Pollan?A. He drew an artistic puppy.B. He inked scars on her face.C. He created a lip tattoo.D. He performed plastic surgeries on her.10. What can we infer from the passage?A. Cosmetic surgery is of no use.B. Tattoos earn Mark Bertram a good fame.C. Catalano is a kind and generous person.D. Fingernail tattoos are popular around the world.11. What could be the best title for the text?A. A Life-changing EventB. Miracle TattoosC. An Amazing ArtistD. A Promising BusinessDThe beach may seem like an inviting place to run on a cool summer morning, but is running on the sand good for your body? It can be, but it’s important to be aware of the challenges that some beach runners experience before you get ready.Running on the beach can be a good thing. It’s certainly different from running on a track or a pavement. For starters, sand can be a challenge because it has an uneven (不平坦的) surface. As you push off, you’re going to lose some of your push as the sand moves. So, you’re not going to be able to push yourself forward as you would on a track or a pavement. But this unevenness has anupside: It gives your body an extra workout, forcing you to exercise muscles that don’t get as much use during runs on firm surfaces. For example, your feet, ankles and lower back might feel sorer and more tired than usual after a beach run just because the surface is constantly moving and changing step to step.You also might feel sore afterward because beaches tend to slope (倾斜) down to the water. If you’re goingfor a long run on the beach, you might notice that one side of your body might feel sorer because you’re putting more pressure on it due to the slope.Some beach runners prefer to run barefoot — not wearing anything on feet. However, if you’re not used to barefoot running, start slowly and don’t run long distances at first. That’s because running barefoot uses more different muscles than running with shoes does, and it’s important to strengthen these muscles and adapt your feet. If you want to run barefoot and as long as you run carefully enough into it, go for it!Running on the sand can be a smart choice for you, because running on softer ground surfaces can reduce muscle damage.12. Why is it difficult to run on the beach for starters?A. The soft surface makes people fall over easily.B. People need to run carefully on its smooth surface.C. Running on its uneven surface takes much effort.D. It’s hard to keep one’s balance on its hard surface.13. Which of the following best explains “upside” underlined in Paragraph 2?A. Advantage.B. Reason.C. Character.D. Challenge.14. What’s the author’s attitude to barefoot running?A. Critical.B. Supportive.C. Doubtful.D. Uncaring.15. The passage can probably be found in ______.A. A primary school textbookB. A tourist guideC. A sports magazineD. A scientific report第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。