广东省深圳市南头中学2020-2021学年度第一学期期中考试试题

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2020-2021学年广东省深圳高级中学南校区八年级上学期期中数学试卷 (解析版)

2020-2021学年广东省深圳高级中学南校区八年级第一学期期中数学试卷一、选择题1．（3分）在Rt△ABC中，若斜边AB＝3，则AC2+BC2等于（）A．6B．9C．12D．182．（3分）下列结论正确的是（）A．无限小数是无理数B．无限不循环小数是无理数C．有理数就是有限小数D．无理数就是开方开不尽的数3．（3分）9的平方根是（）A．3B．±3C．﹣3D．94．（3分）下面的四个数中与最接近的数是（）A．2B．3C．2.5D．2.65．（3分）在平面内，下列数据不能确定物体位置的是（）A．3楼5号B．北偏西40°C．解放路30号D．东经120°，北纬30°6．（3分）在平面直角坐标系中，点（﹣5，0.1）在（）A．第一象限B．第二象限C．第三象限D．第四象限7．（3分）点A（﹣3，2）与点B（﹣3，﹣2）的关系是（）A．关于x轴对称B．关于y轴对称C．关于原点对称D．以上各项都不对8．（3分）在同一平面直角坐标系中，若一次函数y＝﹣x+1与y＝2x+4的图象交于点M，则点M的坐标为（）A．（﹣1，﹣2）B．（﹣1，2）C．（2，1）D．（﹣2，1）9．（3分）直线y＝2x+b与x轴的交点坐标是（2，0），则关于x的方程2x+b＝0的解是（）A．x＝2B．x＝4C．x＝8D．x＝1010．（3分）在一次800米的长跑比赛中，甲、乙两人所跑的路程s（米）与各自所用时间t（秒）之间的函数图象分别为线段OA和折线OBCD，则下列说法正确的是（）A．甲的速度随时间的增加而增大B．乙的平均速度比甲的平均速度大C．在起跑后第180秒时，两人相遇D．在起跑后第50秒时，乙在甲的前面二、填空题（本大题7小题，每小题4分，共28分）请将下列各题的正确答案填写在答题卡相应的位置上．11．（4分）的平方根是．12．（4分）计算：（+1）（﹣1）＝．13．（4分）对于任意不相等的两个数a，b，定义一种运算※如下：a※b＝，如3※2＝＝，那么6※3＝．14．（4分）已知（x﹣12）2+|y﹣5|+（z﹣13）2＝0，则以x，y，z为边长的三角形是三角形．15．（4分）已知关于x的一元一次方程kx+b＝0的解是x＝﹣2，一次函数y＝kx+b的图象与y轴交于点（0，2），则这个一次函数的表达式是．16．（4分）在平面直角坐标系中，点P（m，n）在第二象限，则点Q（﹣m+1，﹣﹣n）在第象限．17．（4分）某音像社对外出租的光盘的收费方法是：每张光盘出租后的头两天，每天收0.8元，以后每天收0.5元，那么一张光盘在出租后n天（n≥2）应收租金元．三、解答题（一）（本大题3小题，每小题6分，共18分）18．（6分）化简：（1）（﹣）+；（2）•．19．（6分）计算：（1）9﹣7+5；（2）÷﹣×+．20．（6分）如图是一个滑梯示意图，若将滑梯AC水平放置，则刚好与AB一样长．已知滑梯的高度CE＝3m，CD＝1m，求滑道AC的长．四、解答题（二）（本大题3小题，每小题8分，共24分）21．（8分）如图，一个圆柱体高20cm，底面半径为5cm，在圆柱体下底面的A点处有一只蜘蛛，它想吃到上底面与A点相对的B点处的一只已被粘住的苍蝇，这只蜘蛛从A点出发，沿着圆柱体的侧面爬到B点，最短路程是多少？（π取3）22．（8分）一辆汽车油箱内有油48升，从某地出发，每行1km，耗油0.6升，如果设剩油量为y（升），行驶路程为x（千米）．（1）写出y与x的关系式；（2）这辆汽车行驶35km时，剩油多少升？汽车剩油12升时，行驶了多少千米？23．（8分）已知正比例函数y＝kx的图象经过点（3，﹣6）．（1）求这个函数的表达式；（2）判断点A（4，﹣2），B（﹣1.5，3）是否在这个函数的图象上；（3）已知图象上的两点C（x1，y1），D（x2，y2），如果x1＞x2，比较y1，y2的大小．五、解答题（三）（本大题2小题，每小题10分，共20分）24．（10分）按要求解决下列问题：（1）化简下列各式：＝，＝，＝，＝，…（2）通过观察，归纳写出能反映这个规律的一般结论，并证明．25．（10分）根据题意，解答问题：（1）如图1，已知直线y＝2x+4与x轴、y轴分别交于A、B两点，求线段AB的长．（2）如图2，类比（1）的解题过程，请你通过构造直角三角形的方法，求出点M（3，4）与点N（﹣2，﹣1）之间的距离．（3）在（2）的基础上，若有一点D在x轴上运动，当满足DM＝DN时，请求出此时点D的坐标．参考答案一、选择题（本大题10小题，每小题3分，共30分）在每小题列出的四个选项中，只有一个是正确的，请把答题卡上对应题目所选的选项涂黑．1．（3分）在Rt△ABC中，若斜边AB＝3，则AC2+BC2等于（）A．6B．9C．12D．18解：∵Rt△ABC中，AB为斜边，∴AC2+BC2＝AB2，∴AB2+AC2＝AB2＝32＝9．故选：B．2．（3分）下列结论正确的是（）A．无限小数是无理数B．无限不循环小数是无理数C．有理数就是有限小数D．无理数就是开方开不尽的数解：A、0.111…（1循环）是无限小数，但不是无理数，故选项错误；B、无限不循环小数是无理数，故选项正确；C、0.111…（1循环）是无限小数，是有理数，故选项错误；D、无理数有三个来源：（1）开方开不尽的数；（2）与π有关的一些运算；（3）有规律的无限不循环小数；故选项错误．故选：B．3．（3分）9的平方根是（）A．3B．±3C．﹣3D．9解：∵（±3）2＝9，∴9的平方根为：±3．故选：B．4．（3分）下面的四个数中与最接近的数是（）A．2B．3C．2.5D．2.6解：＝7，A、22＝4，B、32＝9，C、2.52＝6.25，D、2.62＝6.76，6.76与7最接近，所以2.6与最接近．故选：D．5．（3分）在平面内，下列数据不能确定物体位置的是（）A．3楼5号B．北偏西40°C．解放路30号D．东经120°，北纬30°解：A、3楼5号，物体的位置明确，故本选项错误；B、北偏西40°，无法确定物体的具体位置，故本选项正确；C、解放路30号，物体的位置明确，故本选项错误；D、东经120°，北纬30°，物体的位置明确，故本选项错误．故选：B．6．（3分）在平面直角坐标系中，点（﹣5，0.1）在（）A．第一象限B．第二象限C．第三象限D．第四象限解：∵﹣5＜0，0.1＞0，∴点（﹣5，0.1）在第二象限．故选：B．7．（3分）点A（﹣3，2）与点B（﹣3，﹣2）的关系是（）A．关于x轴对称B．关于y轴对称C．关于原点对称D．以上各项都不对解：点A（﹣3，2）与点B（﹣3，﹣2）的关系是关于x轴对称．故选：A．8．（3分）在同一平面直角坐标系中，若一次函数y＝﹣x+1与y＝2x+4的图象交于点M，则点M的坐标为（）A．（﹣1，﹣2）B．（﹣1，2）C．（2，1）D．（﹣2，1）解：解方程组得，所以M点的坐标为（﹣1，2）．故选：B．9．（3分）直线y＝2x+b与x轴的交点坐标是（2，0），则关于x的方程2x+b＝0的解是（）A．x＝2B．x＝4C．x＝8D．x＝10解：把（2，0）代入y＝2x+b，得：b＝﹣4，把b＝﹣4代入方程2x+b＝0，得：x＝2．故选：A．10．（3分）在一次800米的长跑比赛中，甲、乙两人所跑的路程s（米）与各自所用时间t（秒）之间的函数图象分别为线段OA和折线OBCD，则下列说法正确的是（）A．甲的速度随时间的增加而增大B．乙的平均速度比甲的平均速度大C．在起跑后第180秒时，两人相遇D．在起跑后第50秒时，乙在甲的前面解：A、∵线段OA表示甲所跑的路程S（米）与所用时间t（秒）之间的函数图象，∴甲的速度是没有变化的，故选项错误；B、∵甲比乙先到，∴乙的平均速度比甲的平均速度慢，故选项错误；C、∵起跑后180秒时，两人的路程不相等，∴他们没有相遇，故选项错误；D、∵起跑后50秒时OB在OA的上面，∴乙是在甲的前面，故选项正确．故选：D．二、填空题（本大题7小题，每小题4分，共28分）请将下列各题的正确答案填写在答题卡相应的位置上．11．（4分）的平方根是±．解：∵＝2，2的平方根是±，∴的平方根是±．故答案为是±．12．（4分）计算：（+1）（﹣1）＝1．解：（+1）（﹣1）＝．故答案为：1．13．（4分）对于任意不相等的两个数a，b，定义一种运算※如下：a※b＝，如3※2＝＝，那么6※3＝1．解：6※3＝＝1．故答案为：1．14．（4分）已知（x﹣12）2+|y﹣5|+（z﹣13）2＝0，则以x，y，z为边长的三角形是直角三角形．解：∵（x﹣12）2+|y﹣5|+（z﹣13）2＝0，∴x﹣12＝0，y﹣5＝0，z﹣13＝0，∴x＝12，y＝5，z＝13，∵122+52＝132，∴以x，y，z为三边的三角形是直角三角形．故答案为：直角．15．（4分）已知关于x的一元一次方程kx+b＝0的解是x＝﹣2，一次函数y＝kx+b的图象与y轴交于点（0，2），则这个一次函数的表达式是y＝x+2．解：把x＝﹣2代入kx+b＝0得﹣2k+b＝0，把（0，2）代入y＝kx+b得b＝2，所以﹣2k+2＝0，解得k＝1，所以一次函数解析式为y＝x+2．故答案为y＝x+2．16．（4分）在平面直角坐标系中，点P（m，n）在第二象限，则点Q（﹣m+1，﹣﹣n）在第四象限．解：∵点P（m，n）是第二象限的点，∴m＜0、n＞0，∴﹣m＞0，﹣n＜0，∴﹣m+1＞0，﹣﹣n＜0，∴点Q的坐标在第四象限．故答案为：四．17．（4分）某音像社对外出租的光盘的收费方法是：每张光盘出租后的头两天，每天收0.8元，以后每天收0.5元，那么一张光盘在出租后n天（n≥2）应收租金（0.5n+0.6）元．解：当租了n天（n≥2），则应收钱数：0.8×2+（n﹣2）×0.5，＝1.6+0.5n﹣1，＝0.5n+0.6（元）．答：共收租金（0.5n+0.6）元．故答案为：（0.5n+0.6）．三、解答题（一）（本大题3小题，每小题6分，共18分）18．（6分）化简：（1）（﹣）+；（2）•．解：（1）原式＝2﹣+＝2；（2）原式＝（﹣）×＝（2﹣3）×4＝﹣4．19．（6分）计算：（1）9﹣7+5；（2）÷﹣×+．解：（1）原式＝9﹣14+20＝15；（2）原式＝﹣+2＝4﹣+2＝4+．20．（6分）如图是一个滑梯示意图，若将滑梯AC水平放置，则刚好与AB一样长．已知滑梯的高度CE＝3m，CD＝1m，求滑道AC的长．解：设AC的长为x米，∵AC＝AB，∴AB＝AC＝x米，∵EB＝CD＝1米，∴AE＝（x﹣1）米，在Rt△ACE中，AC2＝CE2+AE2，即：x2＝32+（x﹣1）2，解得：x＝5，∴滑道AC的长为5米．四、解答题（二）（本大题3小题，每小题8分，共24分）21．（8分）如图，一个圆柱体高20cm，底面半径为5cm，在圆柱体下底面的A点处有一只蜘蛛，它想吃到上底面与A点相对的B点处的一只已被粘住的苍蝇，这只蜘蛛从A点出发，沿着圆柱体的侧面爬到B点，最短路程是多少？（π取3）解：如图所示，将圆柱体侧面展开，连接AB，则AB的长即为蜘蛛爬行的最短路程．根据题意得AC＝20cm，BC＝πR＝5π＝5×3＝15cm，在Rt△ABC中，由勾股定理得AB2＝BC2+AC2＝152+202＝625，所以AB＝25cm，即最短路程是25cm．22．（8分）一辆汽车油箱内有油48升，从某地出发，每行1km，耗油0.6升，如果设剩油量为y（升），行驶路程为x（千米）．（1）写出y与x的关系式；（2）这辆汽车行驶35km时，剩油多少升？汽车剩油12升时，行驶了多少千米？解：（1）由题意可得，y与x的关系式是：y＝48﹣0.6x；（2）当x＝35时，y＝48﹣0.6×35＝48﹣21＝27，当y＝12时，12＝48﹣0.6x，解得，x＝60，即这辆汽车行驶35km时，剩油27升；汽车剩油12升时，行驶了60千米．23．（8分）已知正比例函数y＝kx的图象经过点（3，﹣6）．（1）求这个函数的表达式；（2）判断点A（4，﹣2），B（﹣1.5，3）是否在这个函数的图象上；（3）已知图象上的两点C（x1，y1），D（x2，y2），如果x1＞x2，比较y1，y2的大小．解：（1）将（3，﹣6）代入y＝kx，得：﹣6＝3k，解得：k＝﹣2，∴这个函数的表达式为y＝﹣2x．（2）当x＝4时，y＝﹣2×4＝﹣8≠﹣2，∴点A不在这个函数的图象上；当x＝﹣1.5时，y＝﹣2×（﹣1.5）＝3，∴点B在这个函数的图象上．（3）∵k＝﹣2＜0，∴y随x的增大而减小，又∵x1＞x2，∴y1＜y2．五、解答题（三）（本大题2小题，每小题10分，共20分）24．（10分）按要求解决下列问题：（1）化简下列各式：＝2，＝4，＝6，＝10，…（2）通过观察，归纳写出能反映这个规律的一般结论，并证明．解：（1）＝2，＝＝4，＝＝6，＝＝10；（2）由（1）中各式化简情况可得．证明如下：＝＝2n．25．（10分）根据题意，解答问题：（1）如图1，已知直线y＝2x+4与x轴、y轴分别交于A、B两点，求线段AB的长．（2）如图2，类比（1）的解题过程，请你通过构造直角三角形的方法，求出点M（3，4）与点N（﹣2，﹣1）之间的距离．（3）在（2）的基础上，若有一点D在x轴上运动，当满足DM＝DN时，请求出此时点D的坐标．解：（1）令x＝0，得y＝4，即A（0，4）．令y＝0，得x＝﹣2，即B（﹣2，0）．在Rt△AOB中，根据勾股定理有：；（2）如图2，过M点作x轴的垂线MF，过N作y轴的垂线NE，MF和NE交于点C．根据题意：MC＝4﹣（﹣1）＝5，NC＝3﹣（﹣2）＝5．则在Rt△MCN中，根据勾股定理有：；（3）如图3，设点D坐标为（m，0），连结ND，MD，过N作NG垂直x轴于G，过M作MH垂直x轴于H．则GD＝|m﹣（﹣2）|，GN＝1，DN2＝GN2+GD2＝12+（m+2）2MH＝4，DH＝|3﹣m|，DM2＝MH2+DH2＝42+（3﹣m）2∵DM＝DN，∴DM2＝DN2即12+（m+2）＝42+（3﹣m）2整理得：10m＝20 得m＝2∴点D的坐标为（2，0）．。

2020-2021学年深圳市高一上学期期中考试数学试卷及答案解析

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第 3 页共 13 页
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已知函数 f（x）＝3﹣x2，g（x）＝1﹣x．（1）求函数 f（x）在区间[﹣1，1]上的最小值；（2）设 h（x）＝min{f（x），g（x）}，x∈R，求函数 h（x）的最大值．
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选项 A、B、D 均矛盾，B 符合题意，故选：B． 3．集合 A＝{1，2，3，4}，B＝{x|（x﹣1）（x﹣a）＜0}，若集合 A∩B＝{2，3}，则实数 a 的范围是（）

广东省深圳中学2020-2021学年高一上学期期中考试数学试题参考答案

0 ，即 f x1 f x2 0 ，从而 f x1 f x2 .
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19．（12 分）某公司共有 60 位员工，为提高员工的业务技术水平，公司拟聘请专业培训机构进
行培训．培训的总费用由两部分组成：一部分是给每位参加员工支付 400 元的培训材料费；另一部分是给培训机构缴纳的培训费．若参加培训的员工人数不超过 30 人，则每人收取培训费1000 元；若参加培训的员工人数超过 30 人，则每超过1 人，人均培训费减少 20 元．设公司参加培训的员工人数为 x 人，此次培训的总费用为 y 元．

广东省深圳中学2020-2021学年度高一年级上学期期中测试试题

深圳中学2020-2021学年度第一学期期中考试试题年级：高一科目：物理考试时长：75分钟卷面总分：100分一、单项选择题（每小题5分，共45分）1．智能手机上装载的众多APP软件改变着我们的生活．如图所示为某地图APP软件的一张截图，表示了某次导航的路径，其推荐路线中有两个数据：22分钟、9.8公里，下列相关说法正确的是（）A．研究汽车在导航图中的位置时，可以把汽车看做质点B．22分钟表示的是某个时刻C．9.8公里表示了此次行程的位移的大小D．根据这两个数据，我们可以算出此次行程的平均速度的大小2．下列关于加速度的说法中正确的是（）A．由a=可知，a与成正比，与成反比B．加速度是表示物体速度变化快慢的物理量C．物体加速度为零，则物体的速度一定为零D．物体运动速度越大，其加速度一定越大3．甲、乙两物体从同一点出发且在同一条直线上运动，它们的位移一时间（x-t）图像如下图所示，由图像可以看出在0-4s内（）A．甲、乙两物体始终同向运动B．4s时甲、乙两物体间的距离最大C．甲的平均速度等于乙的平均速度D．甲、乙两物体之间的最大距离为4m4．伽利略对落体运动的研究，不仅确立了落体运动的规律，更重要的是开辟了一条物理学的研究之路．下列有关伽利略的研究过程叙述正确的是（）A．他让物体从高处下落，记录高度和时间，找到物体下落高度与时间的平方成正比B．他在比萨斜塔上释放两个重量不一样的物体观察是否同时着地，从而得到自由落体运动的规律C．他采用了提出问题-假设（猜想）-数学推理-实验验证-得出结论-合理外推D．他在实验中利用斜面“冲淡”重力是为了测量时间5．人站在自动扶梯的水平踏板上，随扶梯斜向上匀速运动，如图所示，下列说法正确的是（）A．人受到重力和支持力的作用B．人受到重力、支持力和摩擦力的作用C．人受到的合外力不为0D．人受到的合外力方向与速度方向相同6．如图所示，倾角=30°的斜面上有一重为G的物体，在斜面底边平行的水平推力F作用下沿斜面上的虚线匀速运动，若图中=45°，则（）A．推力F一定是一个变力B．物体可能沿虚线向上运动C．物体与斜面间的动摩擦因数=D．物体与斜面间的动摩擦因数=7．如图所示ae为港珠澳大桥上四段110m的等距钢箱桥墩，一辆汽车（可视为质点）从a 点由静止开始做匀加速直线运动，通过ab段的时间为t，则通过ce段的时间为（）A．tB．tC．D．8．一杂技演员，用一只手抛球，他每隔0.40s抛出一球，接到球便立即把球抛出，已知除抛、接球的时刻外，空中总有四个小球，将球的运动近似看做是竖直方向的运动，球到达的最大高度是（高度从抛球点算起，g=10m/s2）（）A．1.6m B．2.4m C．3.2m D．4.0m 9．三个木块a、b、c和两个劲度系数均为500N/m的相同轻弹簧p、q用细绳连接如图，a 放在光滑水平桌面上，a、b质量均为1kg，c的质量为2kg．开始时p弹簧处于原长，木块都处于静止．现用水平力缓慢地向左拉p弹簧的左端，直到c物块刚好离开水平地面为止，g取10m/s2．该过程p弹簧的左端向左移动的距离是（）A．6cmB．8cmC．10cmD．12cm二、多项选择题（选对得5分，少选得3分，错选或不选得0分）10．物体做直线运动时，有关物体加速度和速度的说法中正确的是（）A．在匀速直线运动中，物体的加速度必定为零B．在匀加速直线运动中，物体的加速度必定为正C．物体的速度等于零，其加速度不一定等于零D．物体的加速度方向不变，速度的方向可能改变11．如图所示，某一弹簧秤外壳的质量为m，弹簧及与弹簧相连的挂钩质量忽略不计，将其放在水平面上．现用两水平拉力F1、F2分别作用在与弹簧相连的挂钩和与外壳相连的提环上，关于弹簧秤的示数，下列说法正确的是（）A．只有F1＞F2时，示数才为F1B．只有F1＜F2时，示数才为F2C．不论F1、F2关系如何，示数均为F1D．不论F1、F2关系如何，弹簧秤收到的合力大小为12．如图所示，倾角为θ的斜面体c置于水平地面上，物块b置于斜面上，通过跨过光滑定滑轮的细绳与小盒a连接，连接b的一段细绳与斜面平行，连接a的一段细绳竖直，a连接在竖直固定在地面的弹簧上．现向盒内缓慢加入适量砂粒，a、b、c始终处于静止状态．下列判断正确的是（）A．c对b的摩擦力可能减小B．地面对c的支持力一定减小C．地面对c的摩擦力一定增大D．弹簧的弹力可能增大三、实验题（每空2分，共12分）13．在“研究匀变速直线运动的规律”实验中，利用小车拖着纸带运动．如图所示为电火花打点计时器打出纸带的示意图，图中相邻两点间还有四个点未画出，已知打点计时器所用交流电源的频率为50Hz．（1）打点计时器工作的基本步骤如下：A．当纸带完全通过打点计时器后，及时关闭电源B．将纸带穿过打点计时器的限位孔，再将计时器插头插入相应的电源插座C．接通电源开关，听到放电声D．释放小车，拖动纸带运动上述步骤正确的顺序是___________．（按顺序填写步骤编号）（2）根据图中数据可以算出，小车在打C点时的速度大小为_________m/s；小车运动的平均加速度大小为a =_________m/s2（计算结果保留两位有效数字）14．在“验证力的平行四边形定则”实验中，某同学的实验情况如图甲所示，其中A为固定橡皮筋的图钉，O为橡皮筋与细绳的结点，OB和OC为细绳，图乙是在白纸上根据实验结果画出的图．（1）图乙中_______是力F1、F2的合力的理论值；_______是力F1、F2的合力的实际测量值．（2）本实验采用的科学方法是____________________A．理想实验法B．等效替代法C．控制变量法D．建立物理模型法四、综合题（每题14分，共28分）15．一辆汽车从静止开始做匀加速直线运动，已知途中先后经过相距27m的A、B两点所用时间为2s，汽车经过B点时的速度为15m/s．求:（1）汽车经过A点时的速度大小；（2）汽车从出发点到A点的平均速度大小．16．如图所示，A、B为竖直墙面上等高的两点，AO、BO为长度相等的两根轻绳，CO为一根轻杆，转轴C在AB中点D的正下方，AOB在同一水平面内，∠AOB=120°，∠COD=60°，若在O点处悬挂一个质量为m的物体，则平衡后绳AO所受的拉力和杆OC所受的压力分别为多少？参考答案1．A2．B3．C4．D5．A6．D7．C8．C9．D10．AD11．CD12．ABC13．（1）BCDA （2）1.9 2.0 14．（1）F F’（2）B15．（1）12m/s （2）6m/s16．mg mg。

2020-2021学年深圳市南山区南头中学高三语文期中考试试题及参考答案

2020-2021学年深圳市南山区南头中学高三语文期中考试试题及参考答案一、现代文阅读（36分）(一)现代文阅读I(9分)阅读下面的文字，完成下面小题。

梅品非花非雾中原军阀张帅的长子，是民国有名的儒将，风度潇洒，诗词书画无一不通。

其母刘老夫人收留一流亡女子，取名素素，居藏书楼整理书画。

张将军返故里休整，遇素素画《梅花傲雪》，惊叹：“程派画风画技竟得两位女传人，二人造诣也在伯仲之间。

”素素吃惊回身，风姿如惊鸿照影。

定下神来，大方见礼，向张将军询问那画风画技如己的人是谁。

张将军笑道：“南京才女程雪如，以善画程派梅花著名。

虽落风尘，却自比红拂，性傲不俗。

”素素更加惊异，且面露忧愤。

将军探问其故，素素只是摇头不语。

张将军常访藏书楼，与素素论诗品画，情趣相投，感情日笃。

偶尔谈到已逝画梅名家程长史。

张将军回忆说：“据传长史之妻有皇族血统，其外祖是永字辈中极通字画的皇子。

生一女名雪如，姿貌不凡。

更奇的是她的聪明。

初读书时点到即悟，年龄稍长便无师自通。

天生写得一手好字，画得一手好画。

程长史画梅时，雪如站在旁边看，就学会了。

写画出来竟和父亲一毫不差。

长史俗务繁忙时，便令雪如代笔，其构图，立意常有好过父亲之处。

”素素沉吟良久，试探道：“这个女子现在哪里？”张将军说：“那个南京程雪如，自称长史之女。

看她绘画行事，应该不假。

”素素垂下泪来：“将军以诚相待，便不隐瞒了。

真正的程雪如，就是眼前的素素。

我身若转蓬，怕辱门楣而隐姓埋名。

不料却有风尘之人冒我清名，请将军为我昭雪。

”素素拿出程长史印章、真迹与心法笔记，让张将军验看。

另有一枚翠玉金丝蟠龙印，上刻女真文字，确是清宫皇家信物。

张将军扼腕叹息，思谋道：“南京程雪如，广交志士，不畏权贵，不是庸脂俗粉，不可草率。

”将军即携素素赴南京，邀江南知名画家数人，聚程雪如的悦梅楼论画。

素素见雪如白衣素裙，端庄雅静，如凌波仙子，北腔京韵听之亲切。

敌意已冲淡几分。

观雪如侧壁悬一巨幅《梅花迎春》，正是世传程派遗作。

2020-2021学年深圳市南山区南头中学高三英语上学期期中考试试卷及参考答案

2020-2021学年深圳市南山区南头中学高三英语上学期期中考试试卷及参考答案第一部分阅读（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ADuring ancient times, children didn’t have smartphones, iPad or computers to entertain themselves. Instead, they came up with interesting games to play.★Stone ballsDuring the Qing Dynasty, kicking a stone ball around was a popular sport in the northern part of China, and it was often played in the winter to protect kids from the cold. Stones were carved into small balls and kicked along with feet. In 1999, the sport was included in the 6th National Ethnic Group Traditional Sports Meeting held in Beijing.★Flying kitesKites have quite a long history. The earliest kites were made of wood, instead of paper. Nowadays, the four most famous kites are the Beijing kite, Tianjin kite , Weifang kite and Nantong kite, of which each has distinctive features. The kite which resembles a swallow is a well-known Beijing style.★Hide-and-seekHide-and-seek is a traditional game for children, popular around the nation. There are two ways to play: covering a child’s eyes while other kids run around to tease(戏弄) him or, more commonly, participants hide and one child must try to find them.★Playing diabolosA diabolo is always made of wood or bamboo and has empty space in the center. By juggling(边抛边接) the diabolo on the rope, the high-speed spinning diabolos will make a sound like a whistle. Playing diabolos is an interesting folk game, especially popular in North China. Playing diabolos was also included in the first group of national intangible cultural heritage(非物质文化遗产).1.Why did ancient children often play stone balls in the winter?A.To practice their feet.B.To warm themselves.C.To train their skills.D.To relax themselves.2.Which kites are swallow-shaped?A.Weifang kites.B.Tianjin kites.C.Beijing kites.D.Nantong kites.3.Why does playing diabolos make a sound?A.Because the diabolo’s center is empty.B.Because the high-speed spinning diabolo is light.C.Because the diabolo is equipped with a whistle.D.Because ropes’ surface moves against the diabolo’s.BIn order to develop the pandemic-stricken economy, China recovered the street vendors（商贩）in a new nation-wide method known as “street stall economy'', allowing residents to set up open-air shops on the sidewalks or other available public spaces.Street vendors were once an important part ofChina's economy and urban landscape. However, sinceChina's economy took off in the last decade, street vendors have gradually disappeared from the streets and many of them opened shops of their own.Fast forward to today, street vendors have come into our sight again after cities such asChengduand Yantai succeeded in creating hundreds of thousands of jobs by giving street stalls permission to operate.China's tech industry was quick to jump on the street vendor trend, with tech giants including Alibaba, Tencent, Meituan and flocking todish outcheap loans, offer support and payment solutions to millions of owners of newly established small businesses.Ant Financial, Alibaba's fintech arm, promised its mobile wallet app Alipay will give interest-free loans to 30 million vendors, and 70 billion RMB of interest-free credit line to consumers to make purchases everywhere, including street vendors. provided 50 billion RMB worth of quality goods for street vendors, and provided each one of them with a maximum 100,000 RMB interest-free loan to stock up.Tencent's WeChat announced to offer payment solutions, marketing supports and even training for up to 50 million street vendors, with the end goal of digitally transforming them to increase their income.Guangzhoucity partnered with WeChat this month to hold a live streaming shopping festival to improve sales of local produce. In attempts to promote various live streaming platforms, many tech CEOs also made their own live streamed e-commerce debuts（首次亮相）selling goods coming from all over the country.4. What does the underlined part “dish out" in Paragraph 3 mean?A. turn down.B. provide with.C. pay off.D. apply for.5. Compared with and Tencent, what unique measure did Ant Financial take?A. It provides interest-free loans for vendors.B. It offers interest-free credit line to customers.C. It provides quality goods for street vendors.D. It offers marketing support to businessmen.6. What's the purpose of the cooperation between WeChat andGuangzhoucity?A. To volunteer to train street vendors.B. To give away free goods to the poor.C. To promote to develop the local economy.D. To help CEOs make their own streaming platforms.7. What can be the best title for the text?A. Chengdu and Yantai Succeeded in Creating Job OpportunitiesB. "Street Vendor Economy” Greatly Increases People's IncomeC. The Whole Nation Are Involved in a New Economy ModelD.China's Major Tech Companies Are Helping With "Street Vendor Economy”CCraig Blackburn, a father and car fan, built a Batmobile for his son’s hope for using the vehicle to brighten the lives of sick children. And now he hopes to use it for more than just his sons hope after seeing the childrens reaction to the Batmobile.Based on the number of failures he had seen in car groups, he estimated that only about one in 50 attempted constructions was actually finished and he realized what an incredible opportunity he had.Mr. Blackburn started the project at the beginning of 2018 after hearing a friend in the US was doing the same thing. It started with importing an outer shell overseas, before picking brains of a friend who had a background as a worker in a car factory to gain knowledge of how to build the car. With the help of his friend, Mr. Blackburn built the Batmobile in 18 months with the cost reaching six figures.Mr.Blackburn hoped to add a flamethrower(喷火器)onto the back of the vehicle and said he had thought about building the more recent Batman Tumbler from the series film Dark Knight. Though Mr. Blackburn encountered plenty of difficulties to get over during the construction, in September 2019, the carmade its firstshow at the Carnival of Flowers in Toowoomba, before being used by Blackburn’s son for his hope.“It was great. It was so good to see the kids’ and adults’ excitement at seeing the Batmobile.” Mr. Blackburn said. As a result, the car lovers hope to make the car work on the roads as soon as possible, so he can visit sick children and take them out with his son.8. What is Craig Blackburn’s initial purpose of making the Batmobile?A. To realize his son’s dream.B. To donate it to sick children.C. To pay his respects to the film Dark Knight.D. To show off at the Carnival of Flowers in Toowoomba.9. How did Blackburn feel about the car-making at first?A. Hopeful.B. Confused.C. Impossible.D. Unsure.10. How did Blackburn’s friend help him?A. By making an outer shell for him.B. By offering him financial support.C. By sharing the knowledge of building cars.D. By telling him the background of the car factory.11. What is the car lovers’ expectation of the Batmobile?A. It will be driven soon on the roads.B. It can be displayed around the world.C. It can change the lives of sick children.D. It will appear in the next film about Batman.DWhen John was growing up, other kids felt sorry for him. His parents always had him weeding the garden, carrying out the garbage and delivering newspapers. But when John reached adulthood，he wasbetter off than his childhood playmates. He had more job satisfaction, a better marriage and was healthier. Most of all, he was happier. Far happier.These are the findings of a 40-year study that followed the lives of 456 teenage boys fromBoston. The study showed that those who had worked as boys enjoyed happier and more productive lives than those who had not. “Boys who worked in the home or community gained competence（能力）and came to feel they were worthwhile members of society, ” said George Vaillant, the psychologist（心理学家）who made the discovery. “And becausethey felt good about themselves, others felt good about them.”Vaillant’s study followed these males in great detail. Interviews were repeated at ages 25, 31and 47. Under Vaillant, the researchers compared the men’s mental-health scores with their boyhood-activity scores. Points were awarded for part-time jobs, housework, effort in school, and ability to deal with problems.The link between what the men had done as boys and how they turned out as adults was surprisingly sharp. Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed. The researchers also found that IQ and family social and economic class made no real difference in how the boys turned out.Working—at any age—is important. Childhood activities help a child develop responsibility, independence, confidence and competence—the underpinnings（基础）of emotional health. They also help him understand that people must cooperate and work toward common goals. The most competent adults are those who know how to do this. Yet work isn't everything. As Tolstoy once said, “One can live magnificently in this world if one knows how to work and how to love, to work for the person one loves and to love one's work.”12. What do we know about John？A. He received little love from his family.B. He had few childhood playmates.C. He enjoyed his career and marriage.D. He was envied by others in his childhood.13. Vaillant’s words in Paragraph 2 serve as _______.A. a description of personal values and social valuesB. an analysis of how work was related to competenceC. an example for parents' expectations of their childrenD. an explanation why some boys grew into happy men14. Vaillant's team got their findings by _______.A. recording the boys' effort in schoolB. comparing different sets of scoresC. evaluating the men's mental healthD. measuring the men's problem solving ability15. What can be inferred from the last paragraph?A. Competent adults know more about love than work.B. Emotional health is essential to a wonderful adult life.C. Love brings more joy to people than work does.D.Independenceis the key to one's success.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学年深圳市南山区南头中学高三生物期中考试试题及参考答案

2020-2021学年深圳市南山区南头中学高三生物期中考试试题及参考答案一、选择题：本题共15小题，每小题2分，共30分。

每小题只有一个选项符合题目要求。

1.将洋葱某部位细胞放入一定浓度物质A溶液中，发现其原生质体体积变化趋势如图所示，下列叙述正确的是A.该部位可能位于洋葱根尖的分生区B.物质A可能为2mol/L的蔗糖溶液C.该细胞出现质壁分离现象后又自动复原D.原生质体相对体积恢复到100%后无水进出2.噬藻体是一种能感染蓝藻的病毒。

它能在蓝藻细胞中复制增殖，产生许多子代噬藻体。

下列关于该病毒的叙述，正确的是（）A.噬藻体的核酸中只有4种核苷酸B.噬藻体和蓝藻共有的细胞器是核糖体C.组成噬藻体和蓝藻的化合物的种类相同D.噬藻体和蓝藻的细胞膜组成基本相同3.现有甲、乙两植物，其中甲植物叶片的叶绿素含量约为乙植物的一半，但固定CO2酶的活性显著高于乙植物。

如图显示两植物在不同光照强度下的CO2吸收速率。

下列叙述错误的是（）A. 光强度低于P时，甲植物的光反应强度低于乙植物B. 光强度高于P时，甲植物的碳反应强度高于乙植物C. 光强度低于P时，限制甲植物光合速率的主要环境因素是光强度D. 光强度高于P时，限制甲植物光合速率的主要环境因素是CO2浓度4.通常情况下,人体组织细胞的细胞内液与组织液的生理指标最接近的是（）A.Na+浓度B.渗透压C.K+浓度D.O2浓度5.某植物种子成熟后需经低温贮藏才能萌发，为探究其原因，检测了该种子中的两种植物激素在低温贮藏过程中的含量变化，结果如图。

根据激素的作用特点，推测图中a、b 依次为（）A. 赤霉素、脱落酸B. 细胞分裂素、生长素C. 脱落酸、细胞分裂素D. 赤霉素、乙烯6.下列对排尿反射过程的分析，正确的是（）A. 直接刺激传出神经或效应器也可以引起排尿反射B. 效应器的传出神经末梢受到刺激能产生动作电位并向脊髓传导C. 动作电位在传入神经和传出神经上的传导是双向的D. 排尿反射中枢位于脊髓，受大脑皮层的高级神经中枢控制7.下列关于动植物生命活动的调节的说法，正确的是（）A.神经递质能进入突触后膜，使突触后膜对钾离子的通透性增加，使突触后膜产生兴奋B.植物的顶端优势、根的向地生长、茎的背地生长都说明了生长素作用具有两重性C.能特异性识别抗原的细胞有T细胞、B细胞、效应T细胞、记忆细胞以及浆细胞D.在血糖调节中，胰岛素和胰髙血糖素的分泌都可受下丘脑的控制，这两种激素也可以作用于相同的器官8.为了控制蚊子的数量，某地区用杀虫剂杀灭蚊子的幼虫——孑孓，从1964年开始用药，至1967年中期停用。

2020-2021学年深圳市南山区南头中学高三生物期中试卷及参考答案

2020-2021学年深圳市南山区南头中学高三生物期中试卷及参考答案一、选择题：本题共15小题，每小题2分，共30分。

每小题只有一个选项符合题目要求。

1. 若“M→N”表示由条件M必会推得N，则下列选项符合这种关系的有A.M表示遵循基因的分离定律，N表示遵循基因的自由组合定律B.M表示生物发生了进化，N表示种群基因频率的定向改变C.M表示基因突变，N表示性状改变D.M表示伴X染色体隐性遗传病的母亲患病，N表示女儿一定患病2. 下图是探究有活性的水稻种子呼吸作用的装置。

下列叙述正确的是（）A.将种子浸透的作用是增加种子细胞中结合水的含量，从而增强种子的代谢作用B.实验开始时，红色小液滴位于0点，在其它条件适宜的情况下，一段时间后，红色小液滴将向右移动C.小液滴停止移动后，种子的呼吸方式是有氧呼吸D.为确保红色小液滴的移动仅由种子的生理活动引起，需另设放置煮熟种子的对照实验装置3. 在人类进化过程中，像SARS、SARS-CoV-2这类病毒一直处于“缺席”状态。

人体虽然有强大的特异性免疫，能产生上百万种抗体，但适应能力也是有一定限度的。

研究表明，S蛋白是SARS-CoV-2与宿主细胞表面ACE2受体结合、进而介导病毒侵入宿主细胞的关键表面蛋白，是疫苗研发的重要靶点。

下列相关叙述正确的是（）A. 当病毒侵染机体后，上百万种B淋巴细胞能接受该种病毒的刺激B. 注射康复者的血清提取物救治患者与疫苗的防治作用原理相同C.T淋巴细胞接受该病毒疫苗刺激后能分泌细胞因子，增强淋巴细胞的免疫能力D. 利用ACE2受体制作疫苗产生抗体与抗原结合，从而抑制SARS-CoV-2与受体结合4. 新交规于2013年1月1日正式实施，新交规中一次性扣12分的11种情形中就包含饮酒后驾驶机动车，其中明确规定不得酒后驾车、醉酒驾车。

醉酒的人驾车时明显表现为反应慢、动作不协调，从而影响各项操作。

造成驾车人反应慢和动作不协调的主要原因分别是酒精麻醉了人的（）A. 大脑、脑干B. 大脑、脊髓C. 大脑、小脑D. 小脑、脑干5. 肥胖可能导致糖尿病，为了研究新药T对糖尿病的疗效，需要创建糖尿病动物模型。

2020-2021学年深圳市南山区南头中学高三生物期中考试试卷及答案

2020-2021学年深圳市南山区南头中学高三生物期中考试试卷及答案一、选择题：本题共15小题，每小题2分，共30分。

每小题只有一个选项符合题目要求。

1. 人类白化病和苯丙酮尿症是由于代谢异常引起的疾病，下图表示在人体代谢中产生这两类疾病的过程。

由图不能得出的结论是①基因可以通过控制蛋白质的结构来控制生物的性状①基因可以通过控制酶的合成来控制生物的性状①一个基因只能控制一种性状①一个性状可以由多个基因控制A. ①①B. ①①C. ①①D. ①①2. 基因型为AabbDd的个体自交后，其后代表现型的比例接近于（）A.9①3①3①1B.3①3①1①1C.1①2①1D.3①13. 已知果蝇某对等位基因(A、a)位于X染色体上，雌性隐性纯合致死（合子或胚胎）。

现有基因型为XaY、XAXa的果蝇杂交得F1,F1雌雄个体自由交配得F2，则F2中雌性与雄性个体的比例是（）A.1 : 1B.3 :4C.3 : 2D.1 : 24. 将灵敏电位计的两极如下图所示分别置于膝跳反射反射弧中的a处外表面和b处内表面，图中ac＝db，若在c、d两点同时对神经细胞给以能引起兴奋的刺激，则刺激后电位计指针偏转的情况及b处内表面的电位变化是A. 先左后右，再向右；负→正→负B. 先右后左，再向左；正→负→正C. 先右后左，再向右再向左；正→负→正→负→正D. 先左后右，再向左再向右；负→正→负→正→负5. 生长在沙漠中的仙人掌，在其肉质茎的细胞中，含量最多的有机化合物是A. 水B. 脂质C. 糖类D. 蛋白质6. 图是由3个圆构成的类别关系图，符合这一关系的是（）A.I为脱氧核糖核酸、①为核糖核酸、①为核酸B.I为淀粉、①为糖原、①为几丁质C.I为固醇、①为胆固醇、①为维生素DD.I为原核生物、①为酵母菌、①为蓝细菌7. 反射活动的结构基础是A. 感受器B. 反射弧C. 效应器D. 神经中枢8. 蔗糖酶能将一分子蔗糖水解为一分子果糖和一分子葡萄糖。

2021届深圳市南山区南头中学高三英语上学期期中试题及答案

2021届深圳市南山区南头中学高三英语上学期期中试题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AWhen you grow up in Voss, outdoor adventures become a way of living. This is why visitors will find outdoor activities for all ages and levels. Many people get the impression that such activities as river sports, air sports and other extreme sports are only for the experts. Actually, you will find many outdoor adventures for those who simply want a taste of these elements in Voss.◆River KayakingThe river in Voss are great for river kayaking. If you are a beginner, we advise you to try an introduction course of 3 hours. A course of 2 days can be tested out if you really want to learn the sport of kayaking. Get a totally new experience with one of the best kayak centers inNorway.Prices From NOK 850 per person◆RaftingThe most popular summer activity in Voss. Thrilling, fun and suitable for beginners as well as those with experience! Includes transportation, safety instruction, swim test and about8kmof breathtaking rafting starting off in softer steams before getting on to the more exciting streams.Season Daily May—OctoberPrices From NOK 1,120Info All necessary equipment is provided. Please bring your own swimwear and towel.◆Bavallsekspressen Chair LiftExplore the mountain by riding the Bavallsekpressen chair lift all the way to the top to get immediate access to a great variety of hiking trails in beautiful scenery. The lift is also open for those who want to bring their bike or paraglider. Start and end: From Bavallen to Hangurstoppen.Season: Sat/Sun 24 June—06 August 12:00-16:00Prices Single trip: NOK 100 Day pass: NOK 250◆HusdyrparkenAt Husdyrparken, visitors get to experience Norwegian farm animals. You can participate in animal feeding and farm competitions, or simply relax with an organic ice cream in the café. You can also visit a small museumwith old farming equipment.Season: Daily 18 June—21 AugustPrices: Adults NOK 120 Children NOK 60 Senior NOK 60Family Pass NOK 200 (For up to two adults and two kids)1. Who are the intended readers of the passage?A. Local residents.B. Professional athletes.C. Travel experts.D. Common Tourists.2. Which of the following activities provide instructions for beginners?A. River Kayaking and Rafting.B. Husdyrparken and River Kayaking.C. Rafting and Bavallsekspressen Chair Lift.D. Bavallsekspressen Chair Lift and Husdyrparken.3. How much should Jan pay for a farm trip with her little son and her mother in Voss?A. NOK 240.B. NOK 200.C. NOK 180.D. NOK 120.BThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's largescale structure took shape.The seeds of this structure must have been present in the darkage hydrogen clouds, but the era has been impossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen produced longwavelength(or lowfrequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radiowavedetecting instruments—some within the next threeyears—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do lowfrequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”4. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.5. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.6. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference7. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.CHenry Cavill: Bring Superman to LifeHenry Cavill knew that he wanted to be a star at 16 years of age, after a chance meeting with movie star Russell Crowe who inspired hispassion for acting. But for the British-born actor, the bright lights and attraction ofHollywoodwere a long way away. Supported by his secretary mother and stockbroker father, he decided to study drama during high school. His journey to super star began.Before gaining the international recognition he has now, Cavill tried out for roles in the Harry Potter and Twilight series but failed to get either. He would have to keep waiting for his big chance.Determined as ever, Cavill took any acting jobs he could get his hands on and appeared in several low-budget horror movies and TV shows in hopes of getting noticed. It almost worked. In the early 2000s, at just 22 years old,he narrowly missed out on becoming the new James Bond. Finally, in 2007, his hard work paid off. He won a leading role as the first Duke of Suffolk in the period showThe Tudors. The TV show was very popular and helped to raise Cavill's popularity inAmerica.In 2011, Cavil landed his breakout role, playing Superman in the DC Extended Universe. He hasn't looked back and has since starred in many hit films, such asMission: Impossible- Fallout.More recently, he stepped back on to the small screen. Since 2019, he has starred in the popular seriesThe Witcher, adapted from the book series and video games of the same name. In the TV show, Cavill played a brave monster hunter named Geralt of Rivia, which was the perfect role for Cavill because he was a fan of the video games. Cavill also got a chance to play a classic English character — master detective Sherlock Holmes — in 2020'sEnola Holmes.However, Cavill isn't just a good guy on screen. His charity work also makes him a real-life hero. In 2014, he took part in the Ice Bucket Challenge while wearing his full Superman suit to support the ALS Association. Currently, he is an ambassador for the UK's Royal Marines Charity, which supports war veterans (退伍军人). Why does he do it? He love to make people feel good and bring smiles to people' faces. Indeed, Henry Cavill in living proof that you don't always need to wear a cape (斗篷) to act like a hero.8. Why did Cavil act in low-budget film and TV works early in his career?A. He was too polite to refuse.B. He was hoping to get noticed.C. He was encouraged to do so by his parents.D. He was friends with the directors of the projects.9. The role of the monster hunter was the perfect for Cavill because ________ .A. he had experienced hunting monstersB. he had played the same role in a movieC. he knew the writer of the books personallyD. he enjoyed the video games that the show was rooted in10. Which of the following words can best describe Cavill?A. Modest and friendly.B. Determined and kind.C. Talented and faithful.D. Honest and considerate.11. What made Cavill a real-life hero?A. Being a successful actor.B. Playing Superman on screen.C. Devoting to charities.D. Wearing a cape to take part in activities.DA young female athlete in thePhilippinesrecently won many gold medals during a sports meet despite not having proper running shoes. Rhea Ballos, an 11-year-old student ofSalvationElementary Schoolin Balason,Iloilo, wasonly wearing bandages around her feet when she competed at the Iloilo Schools Sports Meet.Facebook user Valenzuela posted pictures of the girl with her feet wrapped in bandages bearing the famous Nike logo. Ballos even wrote the word “NIKE” on the sides of her “shoe” to complete the “Nike running shoes” look. The bandages were tightly wrapped around her feet, creating a thin protective layer against the track. While she was actually barefoot during the races, she was still able to defeat her competitors who all more proper footwear intended for running,According to the post, Ballos bagged the top awards in the 400-meter dash, the 800-meter run, and the 1500-meter run in the girls' categories in the inter school sporting event held in Iloilo, central Philippines.When pictures of her “Nike” footwear become popular, Flipinos on social media praised her. Many noted that instead of falling into self-pity, she was even able to make light of the situation by drawing the Nike logo on her “running shoes”. Some of the commenters of Valenzuela's post expressed how the girl deserved to be recognized by Nike and that the brand should actually give her a new pair of real Nike shoes. Others started getting in touch with the American sports brand, as well as local basketball specialty store Titan 22.It did not take long for Titan co-founder and Alaska Aces head coach Jeffrey Cariaso to take notice of Ballos' outstanding achievement. Cariaso immediately made an effort to get in touch with the young track runner. The seven-time PBA champion has since talked to the student as well as her coaches in an apparent bid to help her out.12. Why did Ballos wear bandages around her feet to compete?A. She couldn't afford to buy shoes.B. She wished to be noticed by Nike.C. She wanted to draw public's attention.D. She thought it fashionable and unique.13. What's people's attitude to Ballos' story?A. Surprised.B. Confused.C. Favorable.D. Doubtful.14. What can we infer from the last paragraph?A. Ballos will be recognized by Nike.B. Ballos will be probably helped by Cariaso.C. Ballos is bound to win more champions.D. Ballos will become a great basketball player.15. Which of the following can best describe Ballos?A. Shy and lucky.B. Kind and brave.C. Clever and outstanding.D. Gifted and optimistic.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学年中山市南头高级中学高三语文上学期期中考试试题及答案解析

2020-2021学年中山市南头高级中学高三语文上学期期中考试试题及答案解析一、现代文阅读（36分）(一)现代文阅读I(9分)阅读下面的文字，完成下面小题。

当地名进入古诗彭程一①在我个人的经验中，面对地图时，也总是古诗词最能够以生动的姿态呈现的时刻。

②目光摩挲过一个个地名，旁边那些或大或小的圆圈或圆点，在幻觉中次第打开。

仿佛是岩溶地带大山峭壁之上的洞穴，外部看去并不大，一旦进入，却会发现溶洞宽阔，石笋奇诡，暗河幽深。

这些或熟悉或陌生的地名下，藏匿着自然、历史、民俗……一个物质和精神的丰富浩大的谱系。

而与这种感觉几乎同步，此时耳畔也总是会响起古诗词铿锵有力或婉转悠扬的音调，在眼前幻化成为一幅幅画面。

③譬如此刻，目光所及之处，是甘肃武威。

西汉初，武威为匈奴所占据。

公元121年，汉武帝派骠骑大将军霍去病两次远征河西，大败匈奴，为彰显大汉的“武功军威”而命名此地。

不过在漫长岁月中，它更为人知的名字是凉州。

凉州，地名二字中已经有了凛冽的寒意，入诗，更是漫溢出边地的荒凉和戍人的哀愁。

甚至“凉州词”在唐代成为专门的曲调，很多诗人依调填词：“羌笛何须怨杨柳，春风不度玉门关”；“坐看今夜关山月，思杀边城游侠儿”；“白石黄沙古战场，边风吹冷旅人裳”……从汉唐到明清，一片愁云惨雾，飘荡舒卷在西北大漠戈壁之上。

④如果一个地方是一只瓷器，诗词便是表面上闪亮的釉彩。

因为这些诗句，一个原本抽象单调的地名变得具体而生动，有了色彩、声音和气息。

一行诗句便是一条通道，让我得以穿越时光的漫漫长廊，驰目于辽阔的天空和大地，徜徉在幽静的山林和庭院，欣赏四时风光，感受八方习俗。

二①爱默生说过：诗人是为万物重新命名者。

有一些地方，虽然早已经地老天荒地存在着，但长时间里都只是一种物质形态的面貌，枯燥粗糙。

只有在经过文人墨客的描绘后，才变得具有精神性。

诗文是一种加持，为地名灌注了灵动的气质。

仿佛出色的匠人手里捏出的泥人，被吹拂进了生命的气息，活灵活现。

2020-2021学年深圳市南山区南头中学高三英语期中考试试题及参考答案

2020-2021学年深圳市南山区南头中学高三英语期中考试试题及参考答案第一部分阅读（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ALook at Some Greatest BookstoresAnother CountryKreuzberg, Berlin, Germany. Another Country is an English Language second hand bookshop which is mostly used as a library. They have about 20, 000 books that you can buy or borrow. Some regular events are held at the shop, such as readings, cultural events, social evenings and film nights.Atlantis BooksOia, Santorini, Greece. Atlantis Books is an independent bookshop on the island of Santorini, Greece. It was founded in 2004 by a group of friends from Cyprus, England, and the United States. Throughout the year it has hosted literary festivals, film screenings, book readings, and good old fashioned dance parties.Bart’s BooksOjai, California. U. S. A. “The World’s Greatest Outdoor Bookstore”, a bookstore founded by Richard Bartinsdale in 1964. Shelves of books face the street, and regular customers are asked to drop coins into the door’s coin box to pay for any books they take whenever the store is closed.Adrian Harringtonsince 1971. Rare books: rare first editions; leather bound sets and general antiquarian(古玩).Address: 64a Kensington Church Street, Kensington, London, England, UK.Corso Como BookshopMilan, Italy. Extensive selection of publication on art architecture, design graphics and fashion, along with a strong emphasis on photography. It was founded in 1990 in Milan, Italy, by Carla Sozzamil.The BookwormChina. A bookshop, library, bar, restaurant and event space, now with four divisions in three cities — Beijing, Suzhou and Chengdu. The interconnecting rooms with floor-to-ceiling books on every wall are light and airy in summer, yet warm and comfortable in winter.1.What can you do in Atlantis Books?A.Enjoy rare books.B.Attend a festival.C.Learn photography.D.Buy books anytime.2.Which bookstore has the longest history?A.Adrian Harrington.B.Atlantis Books.C.Bart’s Books.D.Corso Como Bookshop.3.How is The Bookworm different from the others?A.It is used as a library.B.It focuses on photography.C.It hosts all sorts of activities.D.It has branches in different cities.BMedha Gupta sometimes felt worried about making the 20-minute walk from the corner where the school bus dropped her off to her home in Herndon -especially during the colder months in winter.Her mother, Divya Gupta had a suggestion: write an app. Shewas half-kidding,but Medha didn't take the challenge lightly. So she set out to work.The result was Safe Travel, an app designed by Medha to help walkers feel more secure when travelling alone. Using the iPhone, a person can program it to send a warning to someone he or she trusts if he or she fails to arrive at a destination within a certain time.It was the first iOS app that Medha had created. While she didn't think much would come from the project, her effort caught the eye of judges for the annual Congressional App. Challenge, who selected her as the winner for Virginia's 10th District.The App Challenge is designed to encourage students to consider careers in science, technology, engineering, and math by experimenting with coding and computer science. Winning students are invited lo attend a reception on Capitol Hill in April and also received $250 in Amazon Web Service credits.Medha said it took her about 40 hours to design, program and test the app. As for her next app? Medha's not certain. She temporarily has her app-development ambitionson holdbecause she's busy teaching herself artificial intelligence to help deal with improper words on Facebook. Yes,she knows that there are teams of engineers probably doing the same thing. But she figures it can't hurt her own part, too.“If we see something wrong with the world, we should do something about it,” she said. “After all, the only one stopping us from doing something is ourselves. ”4. Why did Medha Gupta feel worried?A. It took a long time to walk home.B. It was difficult to write an app.C. It was colder than ever in winter.D. It was unsafe to walk home alone.5. What is Medha's attitude to her mother's challenge?A. Serious.B. Casual.C. Uncertain.D. Indifferent.6. What does the underlined phrase “on hold” in Paragraph 6 mean?A. Developed.B. Delayed.C. Achieved.D. Satisfied.7. What's the main idea of the text?A. Medha signed up for the App Challenge.B. Medha designed Safe Travel successfully.C. An app Safe Travel guides walkers home.D. The App Challenge directs students to choose careers.CAt any moment, about half the world’s population is wearing denim（牛仔布）clothes. But few realize tiny bits of denim have been adding up to a surprising amount of pollution in water, as a new study shows.Sam Athey, one of the study’s authors, says, “Even though denim is made of a natural material—cotton, it contains chemicals.” Cotton fibers were treated with many types of chemicals, she notes. Some improve its durability and feel. Others give denim its distinctive blue color1 .Athey and her team washed jeans and found that about 50,000 microfibers came off from each pair per wash. Not all of those fibers make their way into the environment. Wastewater treatment plants catch about 83 to 99 percent ofthem. Catching 99 percent may sound pretty good. But one percent of 50,000 is still 500 fibers per wash. And since every pair of jeans is washed again and again, it still adds up to lots of microfibers entering the water environment.Denim microfibers showed up in sediment（沉淀物）from the Great Lakes. More of these fibers polluted a series of shallow lakesin southern Ontario. They even turned up in sediment from the Arctic Ocean in northern Canada. The team found denim accounted for 12 to 23 percent of microfibers in the sediment. There were other microfibers too. But the team focused on denim because so many people wear jeans.“Everyone wears jeans so they could be our largest input of microfibers into our streams and soils,” Athey says. “An easy way to limit that is by washing our jeans less often.” Athey grew up thinking she should wash her jeans after wearing them every couple of times, but most jean companies recommend washing them no more than once a month. “The solution is not that you shouldn’t wear jeans,” she says. “We need to buy fewer denim clothes and only wash them when they truly need it.”8. Which of the following is TRUE according to the passage?A. Chemicals are contained in natural cotton.B. Chemicals can make denim color1 ful.C. Chemicals prevent fibers from falling.D. Chemicals can make the life of denim longer.9. What does the underlined word “them” in Paragraph 3 refer to?A. Denim.B. Sediment.C. Microfibers.D. Chemicals.10. What does the author mainly want to tell us through Athey’s words ?A. To avoid wearing jeans.B. To reduce denim consumption.C. To wash jeans more often.D. To limit input in denim production.11. In which section of a magazine might the text be found?A. Science.B. Entertainment.C. Tourism.D. Geography.DA wife’s level of education positively influences both her own and her husband’s chances of having a long life, according to a new Swedish study.In the study, researchers from the Swedish Institute for Social Research inStockholmfound that a woman’s level of education had a stronger connection to the likelihood of her husband dying over education. What’s more, they discovered that a husband’s social class, based on his occupation, had a greater influence on his wife’s longevity(长寿) than her own class.“Women traditionally take more responsibility for the home than men do, and, as a result, women’s levels of education might be more important for determining lifestyles－for example, in terms of food choices－than those of men,” say Srs. Robert Erikson and Jenny Torssander of the Swedish Institute for Social Research inStockholm.The results show that a husband’s level of education does not influence his longevity, but that men with partners who had quit studying after school were 25 per cent more likely to die early than men living with women holding university degrees. In turn, those married to women with university degrees were 13 percent more likely to die early than those whose wives had post-graduate qualifications.According to the researchers, a woman with a good education may not marry a man who drinks and smokes too much or who drives carelessly, and men with such habits may not prefer highly educated woman. Drs. Erikson and Torssander also suggest that better-educated women may be more aware of what healthy eating and good health care consist of.The findings suggest that education has a huge impact on how long and how well people live. It also reflectssocial factors, since educated individuals usually have better jobs, which allow them to afford healthier diets and lifestyles, as well as better health care.12. In this passage the author intends to ________.A. present the results of a studyB. encourage women to get higher educationC. analyze the relationship between education and lifeD. discuss why women usually live longer than men13. A woman with higher education is likely to ________.A. teach her children wellB. earn more money than her husbandC. marry a man without many bad habitsD. choose a husband with a higher degree than hers14. A wife’s education has more effect on a family than a husband’s because ________.A. women make more sacrifices to their families than men doB. most women have higher degrees than their husbandsC. most men marry women with higher degreesD. women have a leading role in the home life of most families15. We learn from the passage that ________.A. a man with a lot of education lives longer than one with littleB. educated wives tend to choose healthy lifestyles for their familiesC. highly-educated women don’t marry uneducated menD. a man’s longevity depends on not only his wife’s level of education but also his own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。

2021届深圳市南山区南头中学高三英语期中考试试题及参考答案

2021届深圳市南山区南头中学高三英语期中考试试题及参考答案第一部分阅读（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AAre you looking for somewhere special to go this weekend? Do you want to try something new?Check out one of these hot new restaurants.Fast BestFast food doesn't have to be junk food, as this café proves. Do you fancy a really good hamburger made with the best ingredients, or old-fashioned fish and chips fried to perfection, all on the table in super-quick time? Speed and quality are important here, and the prices aren't bad either.Your Local Caff (小餐馆)Remember when cafés served full English breakfasts—sausages, beans, fried bread, bacon and eggs—with a strong cup of tea? Well, this place still does and you can have your breakfast at any time you like during the day while you listen to your favourite tunes from the 1980s.Last Days of the RajA centrally located Indian restaurant, perfect for eating before or after the cinema or a show. In summer enjoy your meal in the beautiful garden. The most popular dishes are lamb and chicken cooked with mild, medium or hot spices. For brave customers there is extra hot!The Chocolate BoxThe owner of this small café used to cook all kinds of food, but then she realised she preferred desserts to anything else. If you want meat or fish, don't come here. They only do desserts! Lots of different kinds of sweets. Chocolate lovers will be excited by the range of chocolate cakes.1.Fast Best suits a person ______.A.who has a sweet toothB.who loves spicy foodC.who wants to have good breakfastD.who gets 30 minutes off for lunch2.Which is true about Last Days of the Raj?A.You can listen to great music in it.B.It serves hot food with pepper.C.It serves an all-day breakfast.D.It is prefect for vegetarians.3.Which restaurant serves only desserts and sweets?A.Fast Best.B.Your Local Caff.st Days of the Raj.D.The Chocolate Box.BYou run into the grocery store to quickly pick up your item. You grab what you need and head to the front of the store. After quickly sizing up the check-out lines, you choose the one that looks fastest. You chose wrong. People getting in other lines long after you have already checked out and headed to the parking lot. Why does this seem to always happen to you?Well, as it turns out, it's just math that is working against you. A grocery store tries to have enough employees at the checkout lines to get all their customers through with minimum delay. But sometimes, like on a Sunday afternoon, they get super busy. Because most grocery stores don't have the physical space to add more checkout lines, their system becomes overburdened. Some small interruption — a price check, a particularly talkative customer — will have downstream effects, holding up the entire line behind them.If there are three lines at the store, these delays will happen randomly at different registers (收银台). Think about the probability. The chances of your line being that fastest one are only one in three, which means you have a two-thirds chance of not being in the fastest line. So it's not just in your mind: Another line is probably moving faster thanyours.Now, mathematicians have come up with a good solution, which they call queuing theory, to this problem: Just make all customers stand in one long snaking line, called a serpentine line, and serve each person at the front with the next available register. With three registers, this method is about three times faster on average than the more traditional approach. This is what they do at most banks, Trader Joe's, and some fast-food places. With a serpentine line, a long delay at one register won't unfairly punish the people who lined up behind it. Instead, it will slow everyone down a little bit.4. What phenomenon is described in the first paragraph?A. Queuing in a line.B. A shopping experience.C. A rush in the morning.D. Cutting in a line.5. According to the article, what may cause delays in checking out?A. The lack of employees in the grocery store.B. Some unexpected delays of certain customers.C. The increasing items bought by customers.D. A worsening shopping system of the store.6. What is the solution given by mathematicians?A. Employing more workers for checking out.B. Limiting the number of queuing people.C. Making only one line available.D. Always standing in the same line.7. What's the principle behind the queuing theory?A. To pursue the maximum benefit.B. To leave success or failure to luck.C. To avoid the minimum loss.D. To spread the risk equally among everyone.COnce small farmers in Masii, a remote village in Kenya, have picked their crops, all they can do is wait until a buyer trucks through. The system works fairly well for beans and corn, but mangoes-the area’s other main crop-spoil (腐烂) more quickly. If the trader is late, they rot.However, a simple coating could change that. A company, SmartTech, has created a product that doubles the shelf life of fresh produce, enabling farmers to access far-off, larger markets. More time forfresh produce on grocers’ shelves also means less food waste-a $2.6 trillion problem, according to the United Nations’ Food and Agriculture Organization (FAO).James Rogers, CEO of SmartTech, wanted to solve the problem for food much in the same way that oxide barriers preventing rust (锈) have achieved for steel. Fortunately, researchers have found when plants made the jump from water to land, they developed cutin(蜡质), a barrier which is made of fatty acids that link together to form a seal around the plant, helping keep water in.The cutin was such a grand strategy that today you’ll still find it across the plant kingdom. SmartTech discovered through researches that an orange can last longer than a strawberry not so much because of the thickness of its skin, but because of the difference in the arrangement of those cutin molecules (分子)on the surface. After extensive trials, Rogers and his team developed a natural and tasteless protective coating from plant material-stems, leaves and skins. The product extends the sweet spot between ripening and rot. And best of all, the treated produce doesn’t require refrigeration.“SmartTech has huge potential to turn poor farmers in Africa into commercial farmers,” says Rogers. “That means more money in pockets, and more food in stomachs.” But whether the company can cost-effectively reachsmall farmers in far-off areas still remains a challenge.8. The author mentions the small farmers in Kenya to ________.A. stress their need for preserving produceB. show their challenge in harvesting cropsC. express their wish to reach larger marketsD. evaluate their loss caused by slow transport9. What can we learn about SmartTech’s product?A. It is financially supported by FAO.B. It is intended to replace refrigeration.C. It is designed to thicken produce’s skin.D. It is based on plants’own defence system.10. What will James Rogers probably focus on next?A. How to expand farms.B. How to earn more money.C. How to produce more tasty food.D. How to profit farmers in remote area.11. The main purpose of the passage is to ________.A. promote a productB. present a technologyC. advertise SmartTechD. introduce James RogersDTo show empathy is to identify with another’s feelings. It is to emotionally put yourself in the place of another. The ability to empathize is directly dependent on your ability to feel your own feelings and identify them.If you have never felt a certain feeling, it will be hard for you to understand how another person is feeling. If you have never put your hand in a flame, you will not know the pain of fire. If you have not experienced jealousy, you will not understand its power.Readingabout a feeling and intellectually knowing about it is very different than actually experiencing it for yourself.Among those with an equal level of emotional intelligence, the person who has actually experienced the widest range and variety of feelings — the great depths of depression and the heights of fulfillment, for example, — is the one who is most able to empathize. On the other hand, when we say that someone “can’t relate” to other people, it is likely because they haven’t experienced, acknowledged or accepted many feelings of their own.Once you have felt discriminated against, for example, it is much easier to relate with someone else who has been discriminated against. Our innate emotional intelligence gives us the ability to quickly recall those instances and form associations when we encounter discrimination again. We then can use the “reliving” of those emotions to guide our thinking and actions. This is one of the ways nature slowly evolves towards a higher level of survival.For this process to work, the first step is that we must be able to experience our own emotions. This means we must be open to them and not distract ourselves from them or try to numb ourselves from our feelings through drugs, alcohol, etc.Next, we need to become aware of what we are actually feeling — to acknowledge, identify, and accept our feelings. Only then can we empathize with others. That is one reason why it is important to work on your own emotional awareness and sensitivity — in other words, to be “in touch with” your feelings.12. How does the author explain the feelings of empathy?A. By giving examples.B. By having classification.C. By making comparison.D. By providing data.13. Which statement may the author agree with?A. Low level of empathy leads to fewer varieties of feelings.B. The deeper one’s feelings are, the more empathetic one is.C. Empathy is a way we recently picked up for better survival.D. Rich experiences may not go with a high level of empathy.14. What’s the purpose of the last two paragraphs of the text?A. To advise a sincere attitude to one’s experiences.B To suggest a right understanding of empathy.C. To require a realbond with one’s emotions.D. To call for true acceptance of one’s feelings.15. What is the best title for the text?A. How Empathy UnfoldsB. Be Open to Your EmotionsC. Why Is Empathy ImportantD. Accept Your True Self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。

2021年深圳市南山区南头中学高三生物期中试卷及答案

2021年深圳市南山区南头中学高三生物期中试卷及答案一、选择题：本题共15小题，每小题2分，共30分。

每小题只有一个选项符合题目要求。

1. 关于下列a、b、c、d四种生物的叙述，不正确的是()A. a和d不具有以核膜为界限的细胞核B. a和b都能进行光合作用C. a、b、c、d都能独立繁殖和代谢D. a属于原核生物，b、c属于真核生物，d属于病毒2. 一对同源染色体与两条姐妹染色单体之间的共同点是A. 它们中的一条都是以另一条为模板复制而来B. 它们的形状、大小一般都相同C. 它们所含的基因一定都相同D. 它们所含的DNA分子数一定都相同3. 下列关于染色体组、单倍体和二倍体叙述，不正确的是()A. 一个染色体组中不含同源染色体B. 由受精卵发育成的，体细胞中含有两个染色体组的个体叫二倍体C. 单倍体生物体细胞中不一定含有一个染色体组D. 人工诱导多倍体的唯一方法是用秋水仙素处理萌发的种子或幼苗4. 下列关于细胞周期的叙述，错误的是（）A.只有连续进行分裂的细胞才具有细胞周期B.细胞周期中分裂间期时间较长C.分裂间期要完成DNA的复制和蛋白质的合成D.同一生物个体的不同细胞，细胞周期长短都相同5. 下面是与促胰液素发现过程有关的四个实验，有关分析不正确的是（）①稀盐酸→小肠肠腔→胰腺分泌胰液①稀盐酸→静脉血液→不分泌胰液①稀盐酸→小肠肠腔(去除神经)→胰腺分泌胰液①小肠黏膜＋稀盐酸＋沙子（研磨）→提取液注入静脉血液→胰腺分泌胰液A.①与①组成的实验，自变量是稀盐酸刺激的部位B.①与①对比说明胰液分泌不受神经的调节C.①①①①组成的实验说明小肠黏膜产生的物质经血液运输可调节胰液的分泌D.要证明胰液分泌是否受神经的调节应该再设计实验继续探究6. 植物的向光性是由生长素分布不均匀造成的，分析下列单子叶植物幼苗的生长状态（注：K暗箱中幼苗随暗箱旋转，L暗箱中幼苗能转而暗箱不旋转），下列说法正确的是（）A.幼苗保持直立生长的只有A、EB.幼苗向左弯曲生长的只有F、GC.幼苗向右弯曲生长的只有C、D、I、JD.幼苗不生长不弯曲的只有B、H、G7. 下列关于细胞核功能的叙述错误的是（）A.与细胞的分裂有关B.细胞代谢的控制中心C.核仁与各细胞器的形成有关D.遗传信息库8. 通过冷冻技术，细胞膜通常从某个断裂分开，结构如图所示，据图分析不能得出（）A.图中b侧为细胞质基质B.磷脂双分子层疏水端断裂C.细胞膜具有一定的流动性D.膜蛋白的分布存在不对称9. 湿地具有多种生态功能，蕴育着丰富的自然资源，被人们称为“地球之肾”、物种贮存库、气候调节器，在保护生态环境、保持生物多样性以及发展经济社会中，具有不可替代的重要作用。

2021-2022年广东省学年度深圳市南头中学第一学期期中考试高一数学试卷

第1页，共13页广东省深圳市南头中学2021学年度第一学期期中考试高一数学试卷一、选择题（本大题共12小题，共60.0分）1. 下列关系正确的是（）A. ⌀⊆{0}B. ⌀∈{0}C. 0∈⌀D. {0}⊆⌀ 2. 函数f （x ）=√1+x +1x 的定义域是（） A. [−1,+∞)B. (−∞,0)∪(0,+∞)C. [−1,0)∪(0,+∞)D. R3. 设全集U =R ，集合A ={x |x 2-2x -3＜0}，B ={x |x -1≥0}，则图中阴影部分所表示的集合为（）A. {x|x ≤−1或x ≥3}B. {x|x <1或x ≥3}C. {x|x ≤1}D. {x|x ≤−1}4. 已知函数f （x ）={x 2,x <0x+1,x≥0，则f [f （-2）]的值为（） A. 1 B. 2 C. 4 D. 55. 已知函数y =f （x ）为定义在R 上的奇函数，则下列结论中不正确的是（）A. f(x)在(−∞,0]和[0,+∞)上的单调性相反B. 图象过原点，且关于原点对称C. f(2018)+f(−2018)=f(0)D. 如果x >0时，有f(x)>0成立，那么x <0时，f(x)<0也成立6. 下列函数中，在其定义域内既是奇函数又是减函数的是（）A. y =xB. y =1xC. y =−x 3D. y =(12)x 7. 命题“∀n ∈N *，f （n ）≤n ”的否定形式是（）A. ∀n ∈N ∗，f(n)>nB. ∀n ∉N ∗，f(n)>nC. ∃n ∈N ∗，f(n)>nD. ∃n ∉N ∗，f(n)>n8. 函数f （x ）=1+log 2x 与g （x ）=2-x +1在同一直角坐标系下的图象大致是（）A. B. C. D.9. 如果不等式|x -a |＜1成立的充分不必要条件是12＜x ＜32，则实数a 的取值范围是（） A. 12<a <32 B. 12≤a ≤32 C. a >32或a <12 D. a ≥32或a ≤1210. 已知a ，b ＞0且a ≠1，b ≠1，若log a b ＞1，则（） A. (a −1)(b −1)<0 B. (a −1)(a −b)>0C. (b −1)(b −a)<0D. (b −1)(b −a)>0。