新疆哈密地区2016-2017学年高一英语上学期期末考试试题
2016-2017学年河南省天一大联考高三(上)期末数学试卷(文科)(解析版)
2016-2017学年河南省天一大联考高三（上）期末数学试卷（文科）一、选择题：本大题共12小题，每小题5分，共60分.在每个小题给出的四个选项中，有且只有一项符合题目要求.1．已知集合A={0，2，4，6}，B={x∈N|2n＜33}，则集合A∩B的子集个数为（）A．8 B．7 C．6 D．42．设i为虚数单位，复数为纯虚数，则实数a的值为（）A．﹣1 B．1 C．﹣2 D．23．“a2＞b2”是“lna＞lnb”的（）A．充分不必要条件 B．必要不充分条件C．充要条件D．既不充分也不必要条件4．三国时代吴国数学家赵爽所注《周髀算经》中给出了勾股定理的绝妙证明，下面是赵爽的弦图及注文，弦图是一个以勾股形之弦为边的正方形，其面积称为弦实，图中包含四个全等的勾股形及一个小正方形，分别涂成红（朱）色及黄色，其面积称为朱实，黄实，利用2×勾×股+（股﹣勾）2=4×朱实+黄实=弦实，化简，得勾2+股2=弦2，设勾股中勾股比为1：，若向弦图内随机抛掷1000颗图钉（大小忽略不计），则落在黄色图形内的图钉数大约为（）A．866 B．500 C．300 D．1345．已知圆（x﹣1）2+y2=的一条切线y=kx与双曲线C：﹣=1（a＞0，b＞0）有两个交点，则双曲线C的离心率的取值范围是（）A．（1，）B．（1，2） C．（，+∞） D．（2，+∞）6．函数f（x）=的图象大致是（）A．B．C．D．7．已知a＞0且a≠1，如图所示的程序框图的输出值y∈[4，+∞），则实数a的取值范围是（）A．（1，2]B．（，1）C．（1，2） D．[2，+∞）8．已知点M的坐标（x，y）满足不等式组，N为直线y=﹣2x+2上任一点，则|MN|的最小值是（）A．B．C．1 D．9．如图，已知长方体ABCD﹣A1B1C1D1的体积为6，∠C1BC的正切值为，当AB+AD+AA1的值最小时，长方体ABCD﹣A1B1C1D1外接球的表面积（）A．10πB．12πC．14πD．16π10．已知函数f（x）=Asin（2x+φ）﹣（A＞0，0＜φ＜）的图象在y轴上的截距为1，且关于直线x=对称，若对于任意的x∈[0，]，都有m2﹣3m≤f （x），则实数m的取值范围为（）A．[1，]B．[1，2]C．[，2]D．[，]11．某几何体的三视图如图所示，则该几何体的体积为（）A．8 B．10 C．12 D．1412．已知f′（x）是定义在（0，+∞）上的函数f（x）的导函数，若方程f′（x）=0无解，且∀x∈（0，+∞），f[f（x）﹣log2016x]=2017，设a=f（20.5），b=f（logπ3），c=f（log43），则a，b，c的大小关系是（）A．b＞c＞a B．a＞c＞b C．c＞b＞a D．a＞b＞c二、填空题：本大题共4小题，每小题5分，共20分.13．已知平面向量=（1，2），=（﹣2，m），且|+|=|﹣|，则|+2|=．14．已知α∈（0，π），sinα=，则tan（α﹣）=．15．已知抛物线C1：y=ax2（a＞0）的焦点F也是椭圆C2：+=1（b＞0）的一个焦点，点M，P（，1）分别为曲线C1，C2上的点，则|MP|+|MF|的最小值为．16．如图，在圆内接四边形ABCD中，AB=2，AD=1，BC=BDcosα+CDsinβ，则四边形ABCD周长的取值范围为．三、解答题：本大题共5小题，共70分.解答应写出必要的文字说明或推理、验算过程.17．（12分）已知正项等比数列{b n}的前n项和为S n，b3=4，S3=7，数列{a n}满﹣a n=n+1（n∈N+），且a1=b1．足a n+1（1）求数列{a n}的通项公式；（2）求数列{}的前n项和．18．（12分）如图，已知四边形ABCD和ABEG均为平行四边形，点E在平面ABCD 内的射影恰好为点A，以BD为直径的圆经过点A，C，AG的中点为F，CD的中点为P，且AD=AB=AE=2．（1）求证：平面EFP⊥平面BCE；（2）求几何体ADG﹣BCE，P﹣EF﹣B的体积．19．（12分）2016年是红军长征胜利80周年，某市电视台举办纪念红军长征胜利80周年知识问答，宣传长征精神，首先在甲、乙、丙、丁四个不同的公园进行支持签名活动．然后再各公园签名的人中按分层抽样的方式抽取10名幸运之星回答问题，从10个关于长征的问题中随机抽取4个问题让幸运之星回答，全部答对的幸运之星获得一份纪念品．（1）求此活动中各公园幸运之星的人数；（2）若乙公园中每位幸运之星中任选两人接受电视台记者的采访，求这两人均来自乙公园的概率；（3）电视台记者对乙公园的签名人进行了是否有兴趣研究“红军长征”历史的问卷调查，统计结果如下（单位：人）：据此判断能否在犯错误的概率不超过0.01的前提下认为有兴趣研究“红军长征”历史与性别有关．临界值表：参考公式：K2=．20．（12分）已知椭圆C：+=1（a＞b＞0）的上下两个焦点分别为F1，F2，过点F1与y轴垂直的直线交椭圆C于M，N两点，△MNF2的面积为，椭圆C 的离心率为（Ⅰ）求椭圆C的标准方程；（Ⅱ）已知O为坐标原点，直线l：y=kx+m与y轴交于点P，与椭圆C交于A，B两个不同的点，若存在实数λ，使得+λ=4，求m的取值范围．21．（12分）已知函数f（x）=x+alnx与g（x）=3﹣的图象在点（1，1）处有相同的切线．（1）若函数y=2（x+m）与y=f（x）的图象有两个交点，求实数m的取值范围；（2）设函数F（x）=3（x﹣）+g（x）﹣2f（x）有两个极值点x1，x2，且x1＜x2，求证：F（x2）＜x2﹣1．请考生在第22、23两题中任选一题作答，如果两题都做，则按照所做的第一题给分[选修4-4：参数方程与极坐标系]（共1小题，满分10分）22．（10分）已知极坐标系的极点为直角坐标系xOy的原点，极轴为x轴的正半轴，两种坐标系中的长度单位相同，圆C的直角坐标系方程为x2+y2+2x﹣2y=0，直线l的参数方程为（t为参数），射线OM的极坐标方程为θ=（Ⅰ）求圆C和直线l的极坐标方程（Ⅱ）已知射线OM与圆C的交点为O，P，与直线l的交点为Q，求线段PQ的长．[选修4-5：不等式选讲]（共1小题，满分0分）23．已知函数f（x）=|x+3|+|x﹣2|（Ⅰ）若∀x∈R，f（x）≥6a﹣a2恒成立，求实数a的取值范围（Ⅱ）求函数y=f（x）的图象与直线y=9围成的封闭图形的面积．2016-2017学年河南省天一大联考高三（上）期末数学试卷（文科）参考答案与试题解析一、选择题：本大题共12小题，每小题5分，共60分.在每个小题给出的四个选项中，有且只有一项符合题目要求.1．已知集合A={0，2，4，6}，B={x∈N|2n＜33}，则集合A∩B的子集个数为（）A．8 B．7 C．6 D．4【分析】化简集合B，根据交集的运算写出A∩B，即可求出它的子集个数．【解答】解：集合A={0，2，4，6}，B={x∈N|2n＜33}={0，1，2，3，4，5}，则A∩B={0，2，4}，∴A∩B的子集个数为23=8．故选：A．【点评】本题考查了两个集合的交运算和指数不等式的解法以及运算求解能力．2．设i为虚数单位，复数为纯虚数，则实数a的值为（）A．﹣1 B．1 C．﹣2 D．2【分析】利用复数代数形式的乘除运算化简，再由实部为0且虚部不为0求解．【解答】解：∵=为纯虚数，∴，解得a=﹣2．故选：C．【点评】本题考查复数代数形式的乘除运算，考查了复数的基本概念，是基础题．3．“a2＞b2”是“lna＞lnb”的（）A．充分不必要条件 B．必要不充分条件C．充要条件D．既不充分也不必要条件【分析】若lna＞lnb，则a＞b＞0，可得a2＞b2；反之，“a2＞b2”a，b可能为负数，推不出lna＞lnb．即可判断出结论．【解答】解：若lna＞lnb，则a＞b＞0，可得a2＞b2；反之，“a2＞b2”a，b可能为负数，推不出lna＞lnb．∴“a2＞b2”是“lna＞lnb”的必要不充分条件．故选：B．【点评】本题考查了函数的性质、不等式的性质、简易逻辑的判定方法，考查了推理能力与计算能力，属于中档题．4．三国时代吴国数学家赵爽所注《周髀算经》中给出了勾股定理的绝妙证明，下面是赵爽的弦图及注文，弦图是一个以勾股形之弦为边的正方形，其面积称为弦实，图中包含四个全等的勾股形及一个小正方形，分别涂成红（朱）色及黄色，其面积称为朱实，黄实，利用2×勾×股+（股﹣勾）2=4×朱实+黄实=弦实，化简，得勾2+股2=弦2，设勾股中勾股比为1：，若向弦图内随机抛掷1000颗图钉（大小忽略不计），则落在黄色图形内的图钉数大约为（）A．866 B．500 C．300 D．134【分析】设勾为a，则股为，弦为2a，求出大的正方形的面积及小的正方形面积，再求出图钉落在黄色图形内的概率，乘以1000得答案．【解答】解：如图，设勾为a，则股为，∴弦为2a，则图中大四边形的面积为4a2，小四边形的面积为=（）a2，则由测度比为面积比，可得图钉落在黄色图形内的概率为．∴落在黄色图形内的图钉数大约为1000≈134．故选：D．【点评】本题考查几何概型，考查几何概型概率公式的应用，是基础的计算题．5．已知圆（x﹣1）2+y2=的一条切线y=kx与双曲线C：﹣=1（a＞0，b＞0）有两个交点，则双曲线C的离心率的取值范围是（）A．（1，）B．（1，2） C．（，+∞） D．（2，+∞）【分析】先求出切线的斜率，再利用圆（x﹣1）2+y2=的一条切线y=kx与双曲线C：﹣=1（a＞0，b＞0）有两个交点，可得＞，即可求出双曲线C 的离心率的取值范围．【解答】解：由题意，圆心到直线的距离d==，∴k=±，∵圆（x﹣1）2+y2=的一条切线y=kx与双曲线C：﹣=1（a＞0，b＞0）有两个交点，∴＞，∴1+＞4，∴e＞2，故选：D．【点评】本题考查直线与圆的位置关系，考查双曲线的方程与性质，考查学生的计算能力，属于中档题．6．函数f（x）=的图象大致是（）A．B．C．D．【分析】判断函数的奇偶性，排除选项，然后利用函数的特殊值判断即可．【解答】解：函数f（x）=是奇函数，排除A，D．当x=时，f（）=＞0，函数的图象的对应点在第一象限，排除B．故选：C．【点评】本题考查函数的图象的判断，函数的奇偶性以及函数的单调性，特殊点等等是解题的常用方法．7．已知a＞0且a≠1，如图所示的程序框图的输出值y∈[4，+∞），则实数a的取值范围是（）A．（1，2]B．（，1）C．（1，2） D．[2，+∞）【分析】根据已知中的程序框图可得，该程序的功能是计算并输出分段函数y=的值，根据程序框图的输出值y∈[4，+∞），分类讨论可得答案．【解答】解：根据已知中的程序框图可得，该程序的功能是计算并输出分段函数y=的值，当x≤2时，y=﹣x+6≥4恒成立，当x＞2时，由y=3+log a2≥4得：log a2≥1，解得：a∈（1，2]，故选：A．【点评】本题考查的知识点是分段函数的应用，程序框图，根据已知分析出程序的功能是解答的关键．8．已知点M的坐标（x，y）满足不等式组，N为直线y=﹣2x+2上任一点，则|MN|的最小值是（）A．B．C．1 D．【分析】画出约束条件的可行域，利用已知条件，转化求解距离的最小值即可．【解答】解：点M的坐标（x，y）满足不等式组的可行域如图：点M的坐标（x，y）满足不等式组，N为直线y=﹣2x+2上任一点，则|MN|的最小值，就是两条平行线y=﹣2x+2与2x+y﹣4=0之间的距离：d==．故选：B．【点评】本题考查线性规划的应用，平行线之间的距离的求法，考查转化思想以及计算能力．9．如图，已知长方体ABCD﹣A1B1C1D1的体积为6，∠C1BC的正切值为，当AB+AD+AA1的值最小时，长方体ABCD﹣A1B1C1D1外接球的表面积（）A．10πB．12πC．14πD．16π【分析】先根据条件求出长方体的三条棱长，再求出长方体ABCD﹣A1B1C1D1外接球的直径，即可得出结论．【解答】解：由题意设AA1=x，AD=y，则AB=3x，∵长方体ABCD﹣A1B1C1D1的体积为6，∴xy•3x=6，∴y=，∴长方体ABCD﹣A1B1C1D1的体积为4x+≥3=6，当且仅当2x=，即x=1时，取得最小值，∴长方体ABCD﹣A1B1C1D1外接球的直径为=，∴长方体ABCD﹣A1B1C1D1外接球的表面积=14π，故选C．【点评】本题考查长方体ABCD﹣A1B1C1D1外接球的表面积，考查体积的计算，考查基本不等式的运用，属于中档题．10．已知函数f（x）=Asin（2x+φ）﹣（A＞0，0＜φ＜）的图象在y轴上的截距为1，且关于直线x=对称，若对于任意的x∈[0，]，都有m2﹣3m≤f （x），则实数m的取值范围为（）A．[1，]B．[1，2]C．[，2]D．[，]【分析】利用函数y=Asin（ωx+φ）的图象和性质，正弦函数的定义域和值域，求得实数m的取值范围．【解答】解：∵函数f（x）=Asin（2x+φ）﹣（A＞0，0＜φ＜）的图象在y 轴上的截距为1，∴Asinφ﹣=1，即Asinφ=．∵函数f（x）=Asin（2x+φ）﹣的图象关于直线x=对称，∴2•+φ=kπ+，k∈Z，∴φ=，∴A•sin=，∴A=，∴f（x）=sin（2x+）．对于任意的x∈[0，]，都有m2﹣3m≤f（x），∵2x+∈[，]，sin（2x+）∈[﹣，1]，sin（2x+）∈[﹣，]，∴m2﹣3m≤﹣，求得≤m≤，故选：D．【点评】本题主要考查函数y=Asin（ωx+φ）的图象和性质，正弦函数的定义域和值域，属于中档题．11．某几何体的三视图如图所示，则该几何体的体积为（）A．8 B．10 C．12 D．14【分析】由已知中的三视图，画出几何体的直观图，数形结合可得几何体的体积．【解答】解：由已知中的三视图，可得该几何体的直观图如下所示：三棱锥A﹣BCD的体积为：××3×4×4=8，四棱锥C﹣AFED的体积为：××（2+4）×2×3=6，故组合体的体积V=6+8=14，故选：D【点评】本题考查的知识点是棱柱的体积和表面积，棱锥的体积和表面积，简单几何体的三视图，难度中档．12．已知f′（x）是定义在（0，+∞）上的函数f（x）的导函数，若方程f′（x）=0无解，且∀x∈（0，+∞），f[f（x）﹣log2016x]=2017，设a=f（20.5），b=f（logπ3），c=f（log43），则a，b，c的大小关系是（）A．b＞c＞a B．a＞c＞b C．c＞b＞a D．a＞b＞c【分析】根据f（x）﹣log2016x是定值，设t=f（x）﹣log2016x，得到f（x）=t+log2016x，结合f（x）是增函数判断a，b，c的大小即可．【解答】解：∵方程f′（x）=0无解，∴f′（x）＞0或f′（x）＜0恒成立，∴f（x）是单调函数，由题意得∀x∈（0，+∞），f[f（x）﹣log2016x]=2017，又f（x）是定义在（0，+∞）的单调函数，则f（x）﹣log2016x是定值，设t=f（x）﹣log2016x，则f（x）=t+log2016x，∴f（x）是增函数，又0＜log43＜logπ3＜1＜20.5∴a＞b＞c，故选：D．【点评】本题考查了函数的单调性、对数函数的运算以及推理论证能力，是一道中档题．二、填空题：本大题共4小题，每小题5分，共20分.13．已知平面向量=（1，2），=（﹣2，m），且|+|=|﹣|，则|+2|=5．【分析】利用平面向量坐标运算法则求出，，由|+|=|﹣|，求出m=1，由此能求出|+2|的值．【解答】解：∵平面向量=（1，2），=（﹣2，m），∴=（﹣1，2+m），=（3，2﹣m），∵|+|=|﹣|，∴1+（2+m）2=9+（2﹣m）2，解得m=1，∴=（﹣2，1），=（﹣3，4），|+2|==5．故答案为：5．【点评】本题考查向量的模的求法，是基础题，解题时要认真审题，注意平面向量坐标运算法则的合理运用．14．已知α∈（0，π），sinα=，则tan（α﹣）=﹣或﹣7．【分析】由已知，分类讨论，利用同角三角函数基本关系式可求cosα，tanα，进而利用两角差的正切函数公式即可计算求值得解．【解答】解：当α∈（0，）时，由sinα=，可得：cosα==，tan=，可得：tan（α﹣）==﹣；当α∈（，π）时，由sinα=，可得：cosα=﹣=﹣，tan=﹣，可得：tan（α﹣）==﹣7．故答案为：﹣或﹣7．（漏解或错解均不得分）【点评】本题主要考查三角函数恒等变换与求值问题，考查分类讨论的思想方法，属于基础题．15．已知抛物线C1：y=ax2（a＞0）的焦点F也是椭圆C2：+=1（b＞0）的一个焦点，点M，P（，1）分别为曲线C1，C2上的点，则|MP|+|MF|的最小值为2．【分析】先求出椭圆方程，可得焦点坐标，再设点M在准线上的射影为D，则根据抛物线的定义可知|MF|=|MD|进而把问题转化为求|MP|+|MD|取得最小，进而可推断出当D，M，P三点共线时|MP|+|MD|最小，答案可得．【解答】解：P（，1）代入椭圆C2：+=1，可得=1，∴b=，∴焦点F（0，1），∴抛物线C1：x2=4y，准线方程为y=﹣1．设点M在准线上的射影为D，则根据抛物线的定义可知|MF|=|MD|∴要求|MP|+|MF|取得最小值，即求|MP|+|MD|取得最小，当D，M，P三点共线时|MP|+|MD|最小，为1﹣（﹣1）=2．故答案为2．【点评】本题考查抛物线的定义、标准方程，以及简单性质的应用，判断当D，M，P三点共线时|PM|+|MD|最小，是解题的关键．16．如图，在圆内接四边形ABCD中，AB=2，AD=1，BC=BDcosα+CDsinβ，则四边形ABCD周长的取值范围为（3+，3+2）．【分析】由正弦定理，三角形内角和定理，两角和的正弦函数公式化简已知等式可得cosβsinα=sinαsinβ，进而可求tan，结合范围β∈（0，π），可求，根据题意，∠BAD=，由余弦定理，基本不等式可求CB+CD≤2，利用两边之和大于第三边可求CB+CD＞，即可得解四边形ABCD的周长的取值范围．【解答】解：∵BC=BDcosα+CDsinβ，∴sin∠BDC=sinβcosα+sinαsinβ，∴sin（α+β）=sinβcosα+sinαsinβ，∴（cosβsinα+cosαsinβ）=sinβcosα+sinαsinβ，∴cosβsinα=sinαsinβ，∴tan，又∵β∈（0，π），∴，根据题意，∠BAD=，由余弦定理，BD2=AB2+AD2﹣2AB•ADcos∠BAD=4+1﹣2×2×1×cos=7，又∵BD2=CB2+CD2﹣2CB•CDcosβ=（CB+CD）2﹣3CB•CD≥（CB+CD）2﹣=，∴CB+CD≤2，又∵CB+CD＞，∴四边形ABCD的周长AB+CB+CD+DA的取值范围为：（3+，3+2）．故答案为：（3+，3+2）．【点评】本题主要考查了正弦定理，余弦定理的应用和解三角形的基本知识以及运算求解能力，属于中档题．三、解答题：本大题共5小题，共70分.解答应写出必要的文字说明或推理、验算过程.17．（12分）已知正项等比数列{b n}的前n项和为S n，b3=4，S3=7，数列{a n}满足a n﹣a n=n+1（n∈N+），且a1=b1．+1（1）求数列{a n}的通项公式；（2）求数列{}的前n项和．【分析】（1）设等比数列{b n}的公比为q，由题意列式求得b1，得到a1，利用累加法求得数列{a n}的通项公式；（2）直接利用裂项相消法求得数列{}的前n项和．【解答】解：（1）由题意，设等比数列{b n}的公比为q，则，解得．又a n﹣a n=n+1，+1∴a n=（a n﹣a n﹣1）+（a n﹣1﹣a n﹣2）+…+（a3﹣a2）+（a2﹣a1）+a1=n+（n﹣1）+…+2+1=；（2）∵，∴=．【点评】本题考查数列递推式，训练了累加法求数列的通项公式，考查裂项相消法求数列的和，是中档题．18．（12分）如图，已知四边形ABCD和ABEG均为平行四边形，点E在平面ABCD 内的射影恰好为点A，以BD为直径的圆经过点A，C，AG的中点为F，CD的中点为P，且AD=AB=AE=2．（1）求证：平面EFP⊥平面BCE；（2）求几何体ADG﹣BCE，P﹣EF﹣B的体积．【分析】（1）由点E在平面ABCD内的射影恰为A，可得AE⊥平面ABCD，进一步得到平面ABCD⊥平面ABEG，又以BD为直径的圆经过A，C，AD=AB，可得BCD为正方形，再由线面垂直的性质可得BC⊥平面ABEG，从而得到EF⊥BC，结合AB=AE=GE，可得∠ABE=∠AEB=，从而得到∠AEF+∠AEB=，有EF⊥BE．再由线面垂直的判定可得EF⊥平面BCE，即平面EFP⊥平面BCE；（2）解：连接DE，由（Ⅰ）知，AE⊥平面ABCD，则AE⊥AD，又AB⊥AD，则AB⊥平面ADE，得到GE⊥平面ADE．然后利用等积法求几何体ADC﹣BCE的体积．【解答】（Ⅰ）证明：∵点E在平面ABCD内的射影恰为A，∴AE⊥平面ABCD，又AE⊂平面ABEG，∴平面ABCD⊥平面ABEG，又以BD为直径的圆经过A，C，AD=AB，∴ABCD为正方形，又平面ABCD∩平面ABEG=AB，∴BC⊥平面ABEG，∵EF⊂平面ABEG，∴EF⊥BC，又AB=AE=GE，∴∠ABE=∠AEB=，又AG的中点为F，∴∠AEF=．∵∠AEF+∠AEB=，∴EF⊥BE．又BE⊂平面BCE，BC⊂平面BCE，BC∩BE=B，∴EF⊥平面BCE，又EF⊂平面EFP，∴平面EFP⊥平面BCE；（Ⅱ）解：连接DE，由（Ⅰ）知，AE⊥平面ABCD，∴AE⊥AD，又AB⊥AD，AE∩AD=A，∴AB⊥平面ADE，又AB∥GE，∴GE⊥平面ADE．=∴V ADC﹣BCE=．∴几何体ADC﹣BCE的体积为4．【点评】本题主要考查点、线、面的位置关系以及体积的求法，考查运算求解能力及空间想象能力，是中档题．19．（12分）2016年是红军长征胜利80周年，某市电视台举办纪念红军长征胜利80周年知识问答，宣传长征精神，首先在甲、乙、丙、丁四个不同的公园进行支持签名活动．然后再各公园签名的人中按分层抽样的方式抽取10名幸运之星回答问题，从10个关于长征的问题中随机抽取4个问题让幸运之星回答，全部答对的幸运之星获得一份纪念品．（1）求此活动中各公园幸运之星的人数；（2）若乙公园中每位幸运之星中任选两人接受电视台记者的采访，求这两人均来自乙公园的概率；（3）电视台记者对乙公园的签名人进行了是否有兴趣研究“红军长征”历史的问卷调查，统计结果如下（单位：人）：据此判断能否在犯错误的概率不超过0.01的前提下认为有兴趣研究“红军长征”历史与性别有关．临界值表：参考公式：K2=．【分析】（1）利用抽样比，求此活动中各公园幸运之星的人数；（2）求出基本事件的个数，利用古典概型概率公式求解；（3）求出K2，与临界值比较，即可得出结论．【解答】解：（1）各公园幸运之星的人数分别为=3，=4，=2，=1；（2）基本事件总数=15种，这两人均来自乙公园，有=6种，故所求概率为=；（3）K2==7.5＞6.635，∴据此判断能在犯错误的概率不超过0.01的前提下认为有兴趣研究“红军长征”历史与性别有关．【点评】本题考查分层抽样，考查概率的计算，考查独立性检验知识的运用，知识综合性强．20．（12分）已知椭圆C：+=1（a＞b＞0）的上下两个焦点分别为F1，F2，过点F1与y轴垂直的直线交椭圆C于M，N两点，△MNF2的面积为，椭圆C 的离心率为（Ⅰ）求椭圆C的标准方程；（Ⅱ）已知O为坐标原点，直线l：y=kx+m与y轴交于点P，与椭圆C交于A，B两个不同的点，若存在实数λ，使得+λ=4，求m的取值范围．【分析】（Ⅰ）根据已知设椭圆的焦距2c，当y=c时，|MN|=|x1﹣x2|=，由题意得，△MNF2的面积为|MN|×|F1F2|=c|MN|=，又∵，解得a、b即可．（Ⅱ）设A（x1，y1），B（x2，y2），P（0，y0），分类讨论：当m=0时，利用椭圆的对称性即可得出；m≠0时，直线AB的方程与椭圆的方程联立得到△＞0及根与系数的关系，再利用向量相等，代入计算即可得出．【解答】解：（Ⅰ）根据已知设椭圆的焦距2c，当y=c时，|MN|=|x1﹣x2|=，由题意得，△MNF2的面积为|MN|×|F1F2|=c|MN|=，又∵，解得b2=1，a2=4，椭圆C的标准方程为：x2+．（Ⅱ）当m=0时，则P（0，0），由椭圆的对称性得，∴m=0时，存在实数λ，使得+λ=4，当m≠0时，由+λ=4，得，∵A、B、p三点共线，∴1+λ=4，⇒λ=3⇒设A（x1，y1），B（x2，y2）由，得（k2+4）x2+2mkx+m2﹣4=0，由已知得△=4m2k2﹣4（k2+4）（m2﹣4）＞0，即k2﹣m2+4＞0且x1+x2=，x1x2=．由得x1=﹣3x23（x1+x2）2+4x1x2=0，∴，⇒m2k2+m2﹣k2﹣4=0显然m2=1不成立，∴∵k2﹣m2+4＞0，∴，即．解得﹣2＜m＜﹣1或1＜m＜2．综上所述，m的取值范围为（﹣2，﹣1）∪（1，2）∪{0}【点评】本题考查椭圆的标准方程的求法，考查了椭圆的简单性质、涉及直线与椭圆相交问题，常转化为关于x的一元二次方程，利用△＞0及根与系数的关系、向量相等等基础知识与基本技能方法求解，考查了推理能力和计算能力，属于中档题．21．（12分）已知函数f（x）=x+alnx与g（x）=3﹣的图象在点（1，1）处有相同的切线．（1）若函数y=2（x+m）与y=f（x）的图象有两个交点，求实数m的取值范围；（2）设函数F（x）=3（x﹣）+g（x）﹣2f（x）有两个极值点x1，x2，且x1＜x2，求证：F（x2）＜x2﹣1．【分析】（1）求出函数的导数，得到关于a，b的方程组，求出f（x）的解析式，设T（x）=f（x）﹣2x﹣2m=lnx﹣x﹣2m，根据函数的单调性求出a的范围即可；（2）求出F（x）的导数，等价于方程x2﹣2x+m=0在（0，+∞）内有2个不等实根，根据函数的单调性证明结论即可．【解答】解：（1）∵f′（x）=1+，g′（x）=，根据题意得，解得：；∴f（x）=x+lnx，设T（x）=f（x）﹣2x﹣2m=lnx﹣x﹣2m，则T′（x）=﹣1，当x∈（0，1）时，T′（x）＞0，当x∈（1，+∞）时，T′（x）＜0，∴T（x）max=T（1）=﹣1﹣2m，∵x→0时，T（x）→﹣∞，x→+∞时，T（x）→﹣∞，故要使两图象有2个交点，只需﹣1﹣2a＞0，解得：a＜﹣，故实数a的范围是（﹣∞，﹣）；（2）证明：由题意，函数F（x）=x﹣﹣2lnx，其定义域是（0，+∞），F′（x）=，令F′（x）=0，即x2﹣2x+m=0，其判别式△=4﹣4m，函数F（x）有2个极值点x1，x2，等价于方程x2﹣2x+m=0在（0，+∞）内有2个不等实根，又x1x2＞0，故0＜m＜1，∴x2=1+且1＜x2＜2，m=﹣+2x2，F （x2）﹣x2+1=x2﹣2lnx2﹣1，令h（t）=t﹣2lnt﹣1，1＜t＜2，则h′（t）=，由于1＜t＜2，则h′（t）＜0，故h（t）在（1，2）递减，故h（t）＜h（1）=1﹣2ln1﹣1=0，∴F（x2）﹣x2+1=h（x2）＜0，∴F（x2）＜x2﹣1．【点评】本题考查导数的几何意义，利用导数研究函数的单调性、最值研究不等式恒成立问题，考查运算求解能力、函数与方程思想．请考生在第22、23两题中任选一题作答，如果两题都做，则按照所做的第一题给分[选修4-4：参数方程与极坐标系]（共1小题，满分10分）22．（10分）已知极坐标系的极点为直角坐标系xOy的原点，极轴为x轴的正半轴，两种坐标系中的长度单位相同，圆C的直角坐标系方程为x2+y2+2x﹣2y=0，直线l的参数方程为（t为参数），射线OM的极坐标方程为θ=（Ⅰ）求圆C和直线l的极坐标方程（Ⅱ）已知射线OM与圆C的交点为O，P，与直线l的交点为Q，求线段PQ的长．【分析】（I）根据已知中圆C的直角坐标系方程，可得圆C的极坐标方程；先由直线l的参数方程消参得到直线l的普通方程，进而可得直线l的极坐标方程（Ⅱ）已知射线OM与圆C的交点为O，P，将θ=代和，可得P，Q点的极坐标，进而得到线段PQ的长．【解答】解：（I）∵圆C的直角坐标系方程为x2+y2+2x﹣2y=0，∴圆C的极坐标方程为：ρ2+2ρcosθ﹣2ρsinθ=0，即ρ+2cosθ﹣2sinθ=0，即，∵直线l的参数方程为（t为参数），消参得：x﹣y+1=0，∴直线l的极坐标方程为：ρcosθ﹣ρsinθ+1=0，即sinθ﹣cosθ=；（Ⅱ）当θ=时，|OP|==2，故点P的极坐标为（2，），|OQ|==，故点Q的极坐标为（，），故线段PQ的长为：．【点评】本题考查的知识点是参数方程和极坐标，熟练掌握参数方程与普通方程及极坐标方程之间的转化方式，是解答的关键．[选修4-5：不等式选讲]（共1小题，满分0分）23．已知函数f（x）=|x+3|+|x﹣2|（Ⅰ）若∀x∈R，f（x）≥6a﹣a2恒成立，求实数a的取值范围（Ⅱ）求函数y=f（x）的图象与直线y=9围成的封闭图形的面积．【分析】（Ⅰ）由题意得，关于x的不等式|x+3|+|x﹣2|≥6a﹣a2在R恒成立，求出左边的最小值，即可求实数a的取值范围（Ⅱ）图象与直线y=9围成的封闭图形是等腰梯形，上底长为9，下底长为5，高为4，即可求函数y=f（x）的图象与直线y=9围成的封闭图形的面积．【解答】解：（Ⅰ）由题意得，关于x的不等式|x+3|+|x﹣2|≥6a﹣a2在R恒成立，因为|x+3|+|x﹣2|≥|（x+3）﹣（x﹣2）|=5，所以6a﹣a2≤5，解得a≤1或a≥5．（Ⅱ）f（x）=9，可得x=﹣5或x=4，如图所示，函数y=f（x）的图象与直线y=9围成的封闭图形是等腰梯形，上底长为9，下底长为5，高为4，面积为=28．【点评】本题主要考查绝对值函数，考查恒成立问题，体现了转化的数学思想，属于中档题．。
河南省洛阳市2023-2024学年高一上学期期末考试英语试题(含答案)
河南省洛阳市2023-2024学年高一上学期期末考试英语试题姓名：__________ 班级：__________考号：__________阅读短文，回答问题Absolutely Unputdownable Books You Have to ReadFlowers for AlgernonDaniel KeyesIf you're seeking a pleasant read, try this short story by Daniel Keyes. He'll show you how a person feels going from a simple cleaner at a bakery, whose IQ is less than 60, to a genius and the most intelligent person on the planet. In a situation like this, is it possible to overcome your fears and cope with loneliness? Keyes offers his answer to this question.Orphans of the SkyRobert A. HeinleinA giant generation ship is sailing without guidance through the depths of the universe. Its passengers have long forgotten the outside world and believed in a pre-technological culture marked by superstition （迷信）. This novel has brought Heinlein wide recognition, and will grasp you tight and won't let you go for months （or even years）afterward. Are we, the digital generation, different from the passengers of that imaginary spaceship?95 Pounds of HopeAnna GavaldaAdapted from the author's own experience, this story is about the main things in life: choices we make, the power of love and devotion. The story of a thirteen-year-old boy who one day has to gather all his strength and courage and take a step towards adulthood proves once again that dreams do come true. After all, no matter how many pounds we have, we're all trying not to lose hope.A Certain SmileFrancoise SaganIf you don't enjoy thrillers or sci-fi and stories about dragon-riding detectives, if you're longing for something emotional, slow and gentle, this beautiful little book by Francoise Sagan is just what you need. Strongly recommended by psychological doctors, it's a pleasant exception among traditional romance novels: you'll find all of the advantages of high-quality literature here. And yes, it's a real page-turner.1．What kind of book is Orphans of the Sky?A．A science fiction.B．A historical novel.C．A detective story.D．A fairy tale.2．What is special about 95 Pounds of Hope?A．It is not suitable for adult readers.B．It is about a boy serving in army.C．It is based loosely on a true story.D．It brought its author great fame.3．Which is the best choice for someone suffering from mental illness?A．Flowers for Algernon.B．Orphans of the Sky.C．95 Pounds of Hope.D．A Certain Smile.阅读短文，回答问题The most eye-catching performance from the final weekend of the U. S. Olympic Track and Field Trials didn't break a world record or send a teenager to Tokyo. But Lindsay Flach still became the shining star. Lindsay Flach competed in the heptathlon（七项全能）18 weeks pregnant and showed off a growing belly. Though she finished a distant last among the 15 women who made it through all seven events of the heptathlon, her participation this past weekend was a victory in itself.The 2020 season was supposed to be Flach's last chance to compete in the heptathlon, the sport that developed into her enthusiasm over the past decade. She intended to grasp a chance on the U. S. Olympic team one final time before marrying her longtime boyfriend and starting a family together.In early 2020, Flach quit her job, temporarily left her soon-to-be-husband behind and moved nearly 250 miles south to train with her new coach at the University of Texas Rio Grande Valley. She intended to remain there through the 2020 U. S. Olympic Trials. Then the pandemic（疫情）struck three months into her training.When the spread of COVID-19 forced the postponement（延迟）of the Tokyo Games and cast doubt on whether they would ever happen, Flach, 31, decided she could no longer put her life on hold. In March, Flach began struggling to hit marks that had previously been routine to her. She took a pregnancy test that came back positive, a result that made her doubt whether her Olympic hopeful.The pregnancy weakened Flach's strength and energy but not her desire to say goodbye to track and field on her own terms. While Flach's final score was less than half her personal best, she's trying not to focus on that aspect, nor on the fact that she never qualified for an Olympics in her career. She's excited for what's to come in her life, excited she was able to participate in a third Olympic Trials and excited that she showed how strong would-be mothers can be. 4．When did Flach begin to love the heptatblon?A．At the age of 18.B．At the age of 21.C．At the age of 30.D．At the age of 31.5．Which word can best describe Flach according to Paragraph 3?A．Determined.B．Ambitious.C．Unfortunate.D．Organized.6．What made Flach excited?A．She was expecting a new life.B．She won the third Olympic Trials.C．She could marry her loved boyfriend finally.D．She was chosen to take part in the Olymipic Games.7．In which section of a magazine can this text be read?A．Teens.B．Sports.C．Economy.D．Advertisement.阅读短文，回答问题Are you patient? Do you have attention to detail, free time and access to a computer? Well, then a scientist might welcome your help. Researchers in the UK say it's becoming important to count on common people to help them with their projects. They need people to examine data and submit their observations online.British teenagers Sasha and Matthew are taking part in a study of penguins（企鹅）from the comfort of their homes. The pair look at pictures and tag（标签）photos identifying adults, chicks and eggs. Every click of their mouse is helping to build up a detailed picture of penguin colonies（群）. They, and thousands of others, are helping scientists to understand why some colonies are growing and others are decreasing. Within the first four hours of Penguin Watch going live, "citizen scientists" marked more images than the research team had in five years.Dr. Tom Hart, Penguin Watch Coordinator at Oxford University, says, "When you go beyond what a scientist can analyse to what a mass audience can do, then it increases beyond what any other project could do."The British Science Association says families are helping out with careful research. It made a difference to the Planet Hunters Project, which ran for five years. V olunteers looked at dots which showed how the brightness of a star changed at different points in its solar system.According to Dr. Robert Simpson from Oxford University, who took part in the project, the volunteers discovered planets and these are now in published papers. He says with pride, "We can go and look at these planets with other telescopes and we know they exist because of those helpers."But how do scientists guard their research against accidental or deliberate mistakes in observation? Dr. Simpson isn't worried. "We get lots of people looking at the same things," he says. The researcher warns that people who are mistakenly clicking on the site are very obvious and can be identified very quickly. So, there's no fooling the scientists.And to make sure things go well, the Penguin Watch paper will go through a peer review before being published. After that, every "citizen scientist" will be credited.8．According to the passage, who will be suitable to help the scientists?A．An engineer who works in a company.B．A university student who likes science.C．A businessman who invests in a new project.D．A careful teenager who uses the computer smoothly.9．What is a volunteer required to do?A．Publish his observation data by himself.B．Observe pictures and record his observation.C．Discuss his observation with other volunteers.D．Take his report to the scientist and correct mistakes.10．How could scientists avoid mistakes in observation?A．By working with volunteers.B．By using their own data.C．By identifying pictures and photos.D．By going through a peer review.11．What's Dr. Simpson's attitude towards the volunteers' observation?A．Objective.B．Supportive.C．Negative.D．Doubtful.阅读短文，回答问题Social distancing is not a new concept in the natural world, where infectious diseases are commonplace. Through specialized senses animals can detect certain diseases and change their behavior to avoid getting ill.In 1966, while studying chimps（猩猩）in a Tanzanian national park, zoologist Jane Goodall observed a chimp named McGregor who had caught a highly infectious virus. His fellow chimps attacked him and threw him out of the group. In one instance, McGregor approached chimps in a tree. He reached out a hand in greeting, but the others moved away without a backward glance."For a full two minutes, old McGregor sat motionless, staring after them," Goodall notes in her 1971 book In the Shadow of Man. "It's really not that different to how some societies react today to such a tragedy. "Not all animals are so aggressive toward their sick neighbors. Sometimes it's as simple as avoiding those who may infect you.When Kiesecker, a lead scientist in America, studied American bullfrog in the late 1990s, he found that bullfrogs could not only detect a deadly smell of infection in other bullfrogs, but healthy members actively avoided those that were sick. Bullfrogs rely on chemicals signals to determine who is sick or not.Caribbean lobsters（龙虾）also avoid diseased members of their community, well before they become infectious. It takes about eight weeks for lobsters infected with the deadly virus to become dangerous to others. Normally social animals, lobsters begin keeping away from the diseased as early as four weeks after infection—oncethe lobsters can smell certain chemicals released by sick individuals."Overall, it's important to note that, unlike us, animals don't realize if they stay home, they might actually reduce the infection rate," Kiesecker explains. "As humans, we have that ability. It's a big difference. "12．Why did other chimps attack McGregor?A．He was a loner.B．He got seriously ill.C．He may cause the group ill.D．He hurt other chimps first.13．How did Goodall feel when seeing McGregor's result?A．Supportive.B．Doubtful.C．Objective.D．Sympathetic.14．How long will the healthy Caribbean lobsters stay with the diseased ones?A．About a month.B．About eight weeks.C．About four days.D．Fewer than four weeks.15．Which can be a suitable title for the text?A．Social Distancing in Nature.B．Carrying out Social Distancing.C．Puzzling Social Distancing in Chimps.D．Social Distancing between Human and Animals.二、阅读七选五（本大题共5小题，共12.5分）阅读七选五The comfort zone is a safe space where we don't risk, but neither do we grow. 16．Change and growth occur. We can not become what we want to be, remaining in what we are today. There are many good reasons to be encouraged to leave the comfort zone.Prepare yourself for difficult times. Safe as we feel in our comfort zone, that space will not protect us from the problems, which usually appear in life in an unexpected way producing great changes. 17．These problems can produce psychological disorders. But learning to live outside the comfort zone, dealing with novelty and uncertainty will make us people emotionally stronger.18．The comfort zone represents everything we know. Outside is another world to discover. In the comfort zone there are no great ideas or new discoveries. It's necessary to leave the known to find the inspiration to creativity. In fact, a study conducted at the University of Florida found that students who spent just one term outside their country scored better on creativity tests than those who had been studying at the same university.Feel more alive. Leaving the comfort zone, we meet new people and live new experiences. Some of these experiences will not be positive but others will become a driving force that gives us new energy. Thus we're learning to enjoy more life. 19．Exercises to get out of your comfort zone will allow you to expand your growth zone without experiencing toomuch anxiety. 20．That's in the growth zone, and you can reach the best of ourselves, learn new things.完形填空After watching my son Todd run in a race, I made my usual comment, "Todd, I could walk faster than those women run." Todd 21．as he knew I wasn't a runner." Listen, Mom, how about you run with me next year at this race?" Without thinking, I quickly agreed to this 22．. I felt this was going to be a piece of cake!Never in my 23．dreams did I ever imagine what the next year would bring. When it was almost time for this race to 24．, Todd wasn't going to be running. He had died in a car accident. A few of his friends knew this "challenge" I had agreed to with Todd. They started to 25．me to run the race. I hadn't 26．or prepared anything. Quite 27．, I had almost forgotten I said I would do it.I decided I should keep my 28．. Before the race, I listened to some 29．talking about how to run your race. I played the race over and over in my 30．when I listened to the tapes. The day of the race finally came. I felt pretty 31．. When it was time for the race, I was all dressed and ready. It was freezing cold that day, but I didn't care. I 32．all my warm clothes and ran with only a sleeveless shirt and shorts on. Nothing was going to 33．me.No one knew what 34．me to run. I finished my practice run, fell on the grass, and cried my eyes out. I found that running 35．the stress I was feeling of losing my dear Todd.21．A．sighed B．laughed C．nodded D．screamed 22．A．challenge B．compromise C．command D．declaration 23．A．mildest B．happiest C．deepest D．wildest24．A．occur B．reward C．end D．exist25．A．press B．encourage C．bother D．order26．A．applied B．recovered C．trained D．digested 27．A．entertainingly B．frankly C．doubtfully D．obviously28．A．secret B．distance C．kindness D．promise29．A．tapes B．lectures C．friends D．experts30．A．dream B．memory C．mind D．soul31．A．desperate B．heartbroken C．emotional D．delighted32．A．took off B．tore up C．threw away D．handed out 33．A．amuse B．depress C．ease D．disappoint 34．A．influenced B．permitted C．directed D．motivated 35．A．deepened B．proved C．relieved D．fostered四、语法填空（本大题共1小题，共15.0分）语法填空Scientists at the University of Liverpool （UL）have developed a robot that can run experiments on its own. It's not new for labs to use robots. But earlier robots usually stayed in one place and 36．（do）one job over and over again. The UL robot is different. It's able to 37．（easy）move around in the same kind of space as humans do. It uses a special system called LiDAR to guide 38．（it）. With one long arm which can turn in almost any direction, the robot can use several different kinds of lab equipment and carry out39．variety of tasks.The scientists says it took a lot of work 40．（program）the robot so that it could do things without 41．（make）mistakes. Once the programming is done, though, the robot makes 42．（few）mistakes than a human.To test their robot, the scientists gave it a task: find a material 43．was able to produce hydrogen（氢）from water. The robot was programmed to understand the basic methods for the experiment, but it 44．（give）10 different things it could change which could influence the results, That meant that the robot could choose from around 98 million different mini-experiments. Over the next 8 days, the robot ran 688 experiments, always choosing its next experiment based45．the results of the last one.五、书面表达（本大题共2小题，共40.0分）46．假定你是某国际高中的学生会主席李华。
山西省2020-2021学年高一英语+语文+政治 上学期期末考试试题及答案
山西省2020-2021学年高一英语上学期期末考试试题（扫描版）更秘密★启用前高一年级新课程教学质量监测与诊断测试英语（人教版）参考答案高一英语（人教版）试题答案第1页（共1页）第一部分听力1-5BABCA 6-10AACCC 第二部分阅读理解11-15CBDCA 16-20ABADC 21-25DCBGF 第三部分语言知识运用完形填空26-30DBCBA 31-35CADAC 36-40BDBAC 41-45CBADD 语篇填空46.for 47.who48.keys 49.a 50.have been destroyed 51.difficult 52.is 53.asking 54.to solve 55.kindest第四部分写作短文改错This summer holiday I went to Nanluoguxiang in Beijing with my parents.First,we took ∧walk in Hutong to feel the style of the old buildings.They were such amazing that we always stopped to take pictures or have a close look.Second,we pay a visit to a Hutong family and had a short talk with them,what gave us a chance to learn about many stories of the past.And then we entered into a tea house,where we tasted all kinds of Chinese tea.Most important,we enjoyed Peking Opera while drink tea.On the way,I bought some paper cuttings as gift for my friends.It was indeed a good choice to know about the history of Beijing,but I am looking forward to visiting them once more.书面表达I am quite happy to get the news that the Students ’Sign Language Club of our school has been set up.How exciting!When it comes to how to make our activities interesting and meaningful,I ’d like to share my thoughts and offer some personal suggestions.Firstly,it is a good idea to invite some sign language experts to give us lectures on a weekly basis.Secondly,in order to show our care,we can regularly visit the deaf students in special schools and learn to interact with them,which is also a valuable chance to put what we learn into practice.Only in this way can we truly appreciate the beauty of sign language and build a bridge between the hearing and the deaf souls.附加题From a young age,people have been taught to be honest from stories.However,many people still tell lies in their dailylife.（要点1）One reason why people lie is to cover up their mistakes.（要点2）Another reason for lying has to do with self-protection.（要点3）Some people might tell a lie when they don ’t want to hurt someone else ’s feelings.（要点4）a so paid which importantly drinking gifts and it山西省2020-2021学年高一语文上学期期末考试试题（扫描版）更秘密★启用前高一年级新课程教学质量监测与诊断测试语文参考答案一、现代文阅读（25分）（一）现代文阅读Ⅰ（13分）1.D2.B3.C4.（4分）答案示例：①体现了差序格局中“以‘己’为中心”的同心圆波纹性质。
黑龙江省哈尔滨师范大学附属中学2015-2016学年高一上学期期中考试英语试题
黑龙江省哈尔滨师范大学附属中学2015-2016学年高一上学期期中考试英语试题2015.11 本试卷分为第I卷（选择题）和第II卷（非选择题）两部分。
满分150分。
考试时间为120分钟。
第I卷（选择题，共100分）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。
每段对话仅读一遍。
1. What will Dorothy do on the weekend?A. Go out with her friend.B. Work on her paper.C. Make some plans.2. What was the normal price of the T-shirt?A. $15.B. $30.C. $50.3. What has the woman decided to do on Sunday afternoon?A. To attend a wedding.B. To visit an exhibition.C. To meet a friend.4. When does the bank close on Saturday?A. At l:00 pm.B. At 3:00 pm.C. At 4:00 pm.5.Where are the speakers?A. In a store.B. In a classroom.C. At a hotel.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。
每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6. What do we know about Nora?A. She prefers a room of her own.B. She likes to work with other girls.C. She lives near the city center.7. What is good about the flat?A. It has a large sitting room.B. It has good furniture.C. It has a big kitchen.听第7段材料，回答第8、9题。
新疆维吾尔自治区、生产建设兵团八年级英语上学期期末考试试题(扫描版)
新疆维吾尔自治区、生产建设兵团八年级英语上学期期末考试试题2016 -2017学年第一学期期末考试试卷八年级英语（人教版）题号听力部分选拝题部分.非选择题部分总分评价等级I 1 1R IV I U IR IV I n IH得分I*听音选图（本题5小题，毎小题1分，共5分）下面是亠组图片，根锯•所听内容.选搾相应的图片'每小题读蘭遍。
U •情景反应〔本题5小题，毎小題1分，共5分）听句子，选出恰当的答案，每小题读两遍。
()&扎I went fiahing. B. Beijing.C* Tbm Smith.()7. A.Goes shopping. B. Delicious. C. No one. • '()8. A.Yes^ she is.、 B. Yem, she does. C. Yes, shti has. ( )9, A. I Uke it.B.One spoon of yugurt,C.First t peer three bananas, and then cut up+,*.( )10. A. Sure, I have to help my mom. B. Sure ,T d love to. C. Sorry» I * d love to.HL对话理解(本題共5小题*毎小题2分，共10分)听对话，回答第11-1.2小题。
听两遍° '( )11. What did Mary do?扎Tried paragliding, B. Stayed at home, C. We don*t know.自带区、赛3IM&20t7学年第一^削几年级英语期未碧试式卷（人教版｝其硕勒贾得分评卷人听力部分（共30分）)12* Is the hoy in good health ?A. Yes, he is.B* No t he isn 11)13, Do they like documentaries?A. N D , they don 1 L B* Yes, they do,)14. What*a he going to be when he grows up?A. An actor,氏 Work hard.()15・ Will students go to school in 100 yearsA. Yes , they will.B. Yes ,they won* tC. No, they won* t.IV-听短文t 写出与短文内容相符的答案，短文读两遍。
【七上期末.英语】2016-2017上海西南位育七年级第一学期英语期末考试
2016学年西南位育七年级第一学期英语期末考试I. Chose the best answer.1. Which of the following underlined sound is not the same?【A】open 【B】office 【C】doctor【D】coffee2. Lucy’s cousin always wears _____ uniform at work.【A】an【B】a 【C】/【D】the3.Peter would rather ____ a cup of latte instead of a cup of black tea【A】to drink 【B】drink 【C】drinking 【D】drinks4. I ____ any food now, because I have just had a bowl of noodles.【A】need to 【B】don’t need to 【C】don’t need 【D】needn’t 5. I am looking forward to _____ “ Where we going Dad?” during the Spring Festival.【A】see 【B】sees【C】seeing 【D】saw6. Xuhui district has become _____ than before for creating a national civilized city.【A】much beautiful 【B】more beautifully【C】much more beautiful 【D】the most beautiful7. This money _____ helping homeless animals.【A】is used to 【B】used to 【C】is used for 【D】used for8. We can save water by _____ water for playing games.【A】wasting 【B】waste 【C】not wasting 【D】not waste 9. Both Mr Green and Mrs Green were born _____ January.【A】on 【B】at 【C】for 【D】in10. There _____ an international food festival next week.【A】is going to have 【B】will have 【C】is going to be 【D】is 11. The meat will go bad ____ you don’t put it in fridge.【A】because 【B】if 【C】when 【D】since12. I will ask my classmates _____ in the classroom.【A】chase 【B】to chase 【C】to not chase 【D】not to chase 13. _____ great fun it is to enjoy reading an interesting book!【A】What 【B】How 【C】What a 【D】How a14. A: ____ will your brother come back from America?B: In a week.【A】How long 【B】How often 【C】How soon 【D】How far15. A: Thank you for your help, Mr Black.B: ____【A】Right 【B】That’s all right【C】All right 【D】That’s rightII. Complete the following passage with the words or phrases in the box. Each can only be used once.5%A. fromB. atC. yourselfD. difficultE.spendingF.betweenHave you thought about __1__ time with an animal face to face? When I say an animal, I mean a tiger.The movie Life of PI “少年派的奇幻漂流”is about an adventure __2___ a teenage boy and a wild tiger. It is based on a best-selling novel by Yann Marte, a Canadian writer.It tells the story of an India boy Pi. He is a zookeeper’s son. He goes on a ship that carries his family and his father’s zoo __3__ India to Canada. But this ship sinks,band he is trapped in a small lifeboat with a Bengal tiger named Richard Parker on the sea. Then the adventure begins.Life of Pi was very hard to make. Ang Lee, the director of the movies said, “ The weather is changeable, and it is very __4__ train and keep an adult tiger. So I only filmed one-eighth of my planned shots.Do you want to know how Pi survives at sea with the tiger? The movie is going to come out in mainland and China on Nov.22. You can find out by __5__.III. Complete the sentences with the given words in their proper forms.1. It is _____ to play basketball after school. (relax)2. Help _____ to some cakes, everybody. (you)3. Last week, the trip to Japan was ______. (please)4. I got two _____ for dinner yesterday. (invite)5. Few of us like him because he thinks _____ of theirs than of himself. (little)6. It’s hard to _____ where to live, in the city or in the suburbs? (choice)7. We want to come back on the _____ of July. (nine)8. _____ BA 123 to Vienna is now boarding at Gate 21. (fly)IV. Rewrite the following sentences as required. 12%1. John used to drink too many soft drinks. （改成否定句）John ______ ______ to drink too many soft drinks.2. We should drink 8 glasses of water if we want to stay healthy.（划线提问）_____ _____ water should we drink if we want to stay healthy?3. David’s never late for school.（反义疑问句）David’s never late for school, _____ ______?4. It took me twenty minutes to walk to the cinema yesterday.（保持句意不变）I _____ twenty minutes ______ to the cinema yesterday.5. I don’t watch too much TV any longer.（保持句意不变）I _____ ______ watch too much TV.6. Convenient, go shopping, it, to, is, neighbourhood, new, your, in（连词成句）Part 3 Reading and Writing (35%)A.Read and choose the best answer.Alfred Nobel was a Swedish chemist who lived from 1833 to 1896. Alfred and his brother made explosives, but in 1864 there was an accident in the laboratory and Alfred's brother was killed. Alfred then decided to spend his life trying to make explosives safer to use.One of the strongest explosives at that time was nitroglycerin. This explosive, which looks like oily water, is very dangerous to use or even to carry. Nobel wanted to study nitroglycerin so he could find a way to make it safer, but the Swedish government would not let him make any more explosives in his laboratory. It was too dangerous. Nobel had the idea of taking nitroglycerin out on a boat in the middle of a lake and working with it there.When Nobel wanted to take the nitroglycerin he was working with from one place to another, he put it into small boxes. Then he put the small boxes into a larger box made of clay. One day, when he opened the large clay box, he found that nitroglycerin was coming out of one of the small boxes. To his surprise, the large clay box was still dry. This gave him the idea of mixing clay with nitroglycerin. The clay would take the oil out of nitroglycerin and make it safer. He called this new explosive 'dynamite'.Dynamite was very useful. Alfred Nobel made and sold so much of it that he became a very rich man. In his will he gave a lot of his money to the Swedish Academy of Arts and Sciences. He wanted the money to be used to give prizes to people who did excellent work. The Academy called them 'Nobel Prizes'. The winners get a lot of money.Nobel wanted one of the prizes to be given to people who work for peace because he hated war and he did not want people to remember him as 'the dynamite man'. Some very famous people have won the Nobel Peace Prize, including Nelson Mandela of South Africa. The United Nations Peacekeeping Forces won the prize in 1988. Nobel Prizes are given out on 10 December - the date that Nobel died.1. Alfred Nobel began studying nitroglycerin after he ______.A. first made dynamiteB. made a lot of moneyC. had a bad accident in his laboratoryD. gave all his money to the Academy2. Nitroglycerin is a very dangerous kind of ______.A. dynamiteB. oilC. clayD. explosive3. The government would not let Alfred Nobel make explosives in his laboratory because _____.A. they wanted him to go to the lake.B. Sweden is a very peaceful countryC. it was too dangerousD. Nobel was making too much money4. The word “This” in Paragraph 3 refers to _____.Nitroglycerin was coming out.The large clay box was still dry.The clay was mixed with nitroglycerinThe small boxes were put into a large box.5. Alfred Nobel became very rich because he ____.A. Won a lot of prizes.B. made and sold a lot of dynamiteC. knew how to make nitroglycerinD. never gave any money away6. The story is about _____.the man who first made dynamitepeople who have won the Nobel Peace Prizelaboratory accidentsThe Swedish AcademyBAyers Rock is right in the center of Australia. It's nearly two thousand kilometers __1__ Sydney, so we flew most of the way. It was rather cloudy __2__.But after we left the mountains behind us , there was hardly a cloud in the sky . Most of the land below_3___ sand, though Dad told me it is greener than you think.“There are a lot of sheep down there”, he said“but hardly any people !”Ayers Rock is a large, low mountain. The day after we __4__, we got up early in the morning before the sun __5__.We started climbing up before it was light. It gets too hot for climbing later. Lower down, at the foot of Ayers Rock, most of the ground is covered with forest and grass , and there are even __6__ small rivers . But when you climb higher, you will find nothing grows there at all. We didn't reach the top because it was too hot. All around it is sand. In the evening, when the sun goes down , the sand is almost red . The sky is red too, so it is very beautiful. Though we only stayed there for a few days, we had a great time.1.A. near B. from C. away D. for2.A. at first B. at last C. first D. in the end3.A. looked B. looked at C. looked like D. liked4.A. reached B. arrived at C. got to D. arrived5.A. rose B. rises C. risen D. was rising6.A. a little B. few C. a few D. littleC. Read the passage and fill in the blanks with proper words.Just like the meaning of statue, living statues are people who stand on the streets w__1___ moving just like statues. Maybe it is hard to believe. But when you come to Barcelona, Spain, you will believe it. Las Ramblas is the most famous street in Barcelona. Especially in the summer, t__2__ of tourists go to the sea by walking down this street. It is a center of shops and markets. You can not only find tourists there, but also thieves, police, and so on. Among them, the living statues are the most special.They are covered with different colors of paint, wearing clothes for different seasons, and standing on the street for several hours without moving. When the v__3__ guess whether they are real or fake ,the statues come to life and move for a few seconds. The movement of the statues seems that someone gave them new lives. They really look like statues, and that’s h_4__ they got their name.Usually there is a jar or a hat in front of them. They change to a__5__ pose when a tourist puts a coin in the hat. You may take photos after giving them some money. But be careful not to touch them unless you want to be c__6__ in paint. It’s a really special experience.Don’t you think so?D. Read the passage and answer the question.7%Chinese knot making is one of China’s folk hand-made arts. In Chinese, knot stands for friendship, warmth, love and so on, and Chinese knots are often used to express good wishes.Chinese knot-making has long history. It appeared first long long ago. And at that time, knots were used to record events. It was developed in the Tang and Song Dynasties and was popular in the Ming and Qing Dynasties.Every Chinese knot is made of a single rope and is named after its special form and meaning. By combining knots skillfully, we will get a special and lucky ornament. Chinese knot making is more than a craft, it is wonderful art. Today, it is popular here and aboard. If you are bothered about what present to send to foreign friends, why not Chinese knots?1.What does the “knot” stand for?2.What did people use knots to do long long ago?3.What is a Chinese knot made of?4.How can we get a special and lucky ornament?5.Chinese knot making isn’t only popular in China, is it?6.Do you like Chinese knots? Why?参考答案+解析1.【答案】A考点：音标2.【答案】B考察不定冠词及首字母发音3.【答案】B考察would rather do sth4.【答案】C考察need情态动词和实义动词的用法区别5.【答案】CLook forward to doing固定搭配6.【答案】C考察比较级及比较级的副词修饰7.【答案】C考察Use被动语态用法8.【答案】C考察非谓语的否定9.【答案】D时间介词in/on/at辨析10.【答案】C考察there be句型的将来时表达11.【答案】B考察条件状语从句连词12.【答案】D考察非谓语否定13.【答案】A感叹句结构及不可数名词14.【答案】CHow句型特殊疑问句，对将来时的提问15.【答案】B考察that’s all right/that’s right/all right 意义辨析II. Complete the following passage with the words or phrases in the box. Each can only be used once.5%【答案】1-5 EFADCIII. Complete the sentences with the given words in their proper forms.1.【答案】relaxing考察it is +adj to do sth的句型2.【答案】yourselves考察不定代词。
新疆乌鲁木齐市2023-2024学年九年级上学期期末考试英语试卷
乌鲁木齐市2023-2024学年第一学期期末测试卷九年级英语试卷考生须知：1.本试卷分为试题卷和答题卷两部分，试题卷共8页，答题卷共2页。
2.满分150分( 含听力20分) 。
考试时间120分钟。
I.听力部分。
( 满分20分)A.图片理解(本题5小题，每小题1分，满分5分)句子理解，根据所听到句子内容选择正确的图片，每小题读两遍。
1. 2. 3. 4. 5. .B.情景反应(本题5小题，每小题1分，满分2分)听句子，选择正确的应答，每小题读两遍。
( )6. A. He lives in Beijing. B. He likes drawing. C. He writes music.( )7. A. I'd like the rice. B. Bread, please. C. Yes, I like bread.( )8. A. It's not easy. B. She was 19 years old. C. She felt happy.( )9. A. Yes,I do. B. Yes, I did. C. Yes, I have.( )10. A. At 4:00 p. m. B. Since last night. C. For two hours.C.对话理解(本题5 小题，每小题1分，满分5 分)听对话及问题，选择正确的答案。
每组对话读两遍。
( ) 11. Where are the children?A. In the park.B. In the dinning hall.C. In the library.( ) 12. How will Lucy get to Shanghai?A. By train.B. By car.C. By plane.( )13. Who is the woman looking for?A. Sarah.B. Emily.C. Linda.( ) 14. What language is Jim good at?A. English.B. French.C. Japanese.( ) 15. How often does the boy's sister go shopping?A. Every year.B. Every week.C. Every month.D.短文理解(本题5 小题，每小题1分，满分5 分)听短文，选择正确的答案，短文读两遍。
2017年中考英语试题（word版,含答案）
2017年中考英语试题（word版,含答案）201 7年⾼中阶段学校招⽣统⼀考试英语本试卷分为第I卷和第Ⅱ卷两部分，共12页。
考试时间120分钟，满分120分。
温馨提⽰：1．答题前，考⽣务必将⾃⼰的姓名、座位号、考号⽤0.5毫⽶⿊⾊签字笔填写在答题卡上。
监考⽼师统⼀将条形码贴在答题卡规定的位置后，考⽣须认真核对，确认⽆误。
2．选择题必须使⽤2B铅笔，在答题卡相应位置规范填涂。
如需改动，⽤橡⽪擦擦⼲净后，再选涂其他答案标号；⾮选择题⽤0.5毫⽶⿊⾊签字笔作答，作答必须写在答题卡的对应框内，超出答题区书写的答案⽆效；在草稿纸、试题卷上作答⽆效。
3．考试结束后，将试卷及答题卡⼀并交回。
第I卷（选择题共85分）第⼀部分听⼒（共两节满分20分）第⼀节（本题共5⼩题，每⼩题1分，计5分）听下⾯五段对话，每段对话后有⼀个⼩题，从题中所给的A、B、C三幅图⽚中选出最佳选项，并将答题卡上对应题号的答案标号涂⿊。
听完每段对话后，你将有5秒钟的时间来回答有关⼩题和阅读下⼀⼩题。
每段对话读两遍。
1. Which invention does the man think is the most important?2. What festival are they talking about?3. What did Mary use to look like?4. How do people in China greet others when they meet for the first time?5. Where did Lily go on vacation?第⼆节（本题共15⼩题，每⼩题1分，计15分）听下⾯四段对话和⼀段独⽩，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，并将答题卡上对应题号的答案标号涂⿊。
听每段对话或独⽩前，你将有5秒钟的时间阅读各⼩题；听完后，各⼩题将给出5秒钟的作答时间。
新疆哈密地区二中1617学年度高二下学期期中考试——数
新疆哈密地区二中2016—2017学年度下学期期中考试高二数学理试题一．选择题（每小题5分，共60分）1．在复平面内，复数z=对应的点位于（）A．第一象限 B．第二象限 C．第三象限 D．第四象限2．函数f（x）=2x﹣sinx的图象大致是（）A．B．C．D．3．由抛物线y=x2﹣x，直线x=﹣1及x轴围成的图形的面积为（）A． B．1 C． D．4．已知函数f（x）=x﹣alnx，当x＞1时，f（x）＞0恒成立，则实数a的取值范围是（）A．（1，+∞）B．（﹣∞，1）C．（e，+∞）D．（﹣∞，e）5．用数学归纳法证明，在验证当n=1等式成立时，其左边为（）A．1 B．1+x C．1+x+x2D．1+x+x2+x36．5名上海世博会形象大使到香港、澳门、台湾进行世博会宣传，每个地方至少去一名形象大使，则不同的分派方法共有（）种．A．25 B．50 C．150 D．3007．某班有50名学生，一次考试的成绩ξ（ξ∈N）服从正态分布N（100，102）．已知P（90≤ξ≤100）=0.3，估计该班数学成绩在110分以上的人数为（）A．10 B．20 C．30 D．408．若关于x的不等式|x+1|+|x﹣2|+m﹣7＞0的解集为R，则实数m的取值范围为（）A．（4，+∞）B．[4，+∞） C．（﹣∞，4）D．（﹣∞，4]9．从0，1，2，3，4这5个数字中选出4个不同的数字组成四位数，其中大于3200的数有（）A．36个B．30个C．28个D．24个10．在（x2+﹣4）3（x+3）的展开式中，常数项是（）A．﹣480 B．﹣240 C．480 D．24011．已知盒中有10个灯泡，其中8个正品，2个次品．需要从中取出2个正品，每次取出1个，取出后不放回，直到取出2个正品为止．设ξ为取出的次数，求P（ξ=4）=（）A． B． C． D．12．已知定义在R上的可导函数y=f（x）的导函数为f′（x），满足f（x）＜f′（x），且f（0）=2，则不等式的解集为（）A．（﹣∞，0）B．（0，+∞）C．（﹣∞，2）D．（2，+∞）二．填空题（共4小题）13．3个猎人同时向一只兔子射击，他们射中的概率分别为0.6，0.5，0.4，问这只兔子被射中的概率为．14．有一个五边形ABCDE，若把顶点A，B，C，D，E涂上红、黄、绿三种颜色中的一种，使得相邻的顶点所涂的颜色不同，则共有种不同的涂色方法．15．如表是降耗技术改造后生产某产品过程中记录的产量（吨）与相应的生产能耗（吨标准煤）的m的值为．恰好取自由曲线与直线x=1及x轴所围成的曲边梯形内”，B表示事件“点P恰好取自阴影部分内”，则P（B|A）=．三．解答题（共6小题）17．某校高2010级数学培优学习小组有男生3人女生2人，这5人站成一排留影．（用数字作答）（1）求其中的甲乙两人必须相邻的站法有多少种？（2）求其中的甲乙两人不相邻的站法有多少种？（3）求甲不站最左端且乙不站最右端的站法有多少种？18．一个箱中原来装有大小相同的5个球，其中3个红球，2个白球．规定：进行一次操作是指“从箱中随机取出一个球，如果取出的是红球，则把它放回箱中；如果取出的是白球，则该球不放回，并另补一个红球放到箱中．”（1）求进行第二次操作后，箱中红球个数为4的概率；（2）求进行第二次操作后，箱中红球个数的分布列和数学期望．19．已知f（x）=x2﹣ax+lnx，a∈R．（1）若a=0，求函数y=f（x）在点（1，f（1））处的切线方程；（2）若函数f（x）在[，1]上是增函数，求实数a的取值范围；（3）令g（x）=x2﹣f（x），x∈（0，e]（e是自然对数的底数）；求当实数a等于多少时，可以使函数g（x）取得最小值为3．20．语文成绩服从正态分布N（100，17.52），数学成绩的频率分布直方图如图：（1）如果成绩大于135的为特别优秀，这500名学生中本次考试语文、数学特别优秀的大约各多少人？（2）如果语文和数学两科都特别优秀的共有6人，从（1）中的这些同学中随机抽取3人，设三人中两科都特别优秀的有x人，求x的分布列和数学期望．（3）根据以上数据，是否有99%的把握认为语文特别优秀的同学，数学也特别优秀．①若x～N（μ，σ2），则P（μ﹣σ＜x≤μ+σ）=0.68，P（μ﹣2σ＜x≤μ+2σ）=0.96．②k2=；21．已知函数f（x）=mln．x+nx在点（1．f（1））处的切线与直线x+y﹣2=0平行，且f（1）=﹣2，其中m，n∈R．（Ⅰ）求m，n的值，并求出函数f（x）的单调区间；（Ⅱ）设函数，对于正实数t，若∃x0∈[1，e]，使得f（x0）+x0+x0≥g（x0）成立，求t的最大值．22．已知函数f（x）=|2x﹣1|﹣|x+2|．（1）求不等式f（x）＞0的解集；（2）若存在x0∈R，使得f（x0）+2a2＜4a，求实数a的取值范围．2016-2017学年第二学期高二（18）届数学理科期中考试试卷答案一．选择题（共12小题）1C. 2A．3B．4D．5C．6C．7A．8A．9A．10A．11B．12B．二．填空题（共4小题）130.88 14．3015． 2.816.．．三．解答题17．解：（1）把甲乙捆绑成一个整体与其余3人当着4个人作全排列有A44种，且甲、乙的位置还可以互换∴不同站法有A44•A22=48种．（2）除甲乙两人外其余3人的排列数为A33，而甲乙二人应插其余3人排好的空才不相邻；且甲、乙位置可以互换．故有C42A22种排列方式．∴不同站法有A33•C42A22=72种．（3）优先考虑甲：若甲站最右端，则乙与其余三人可任意排，则此时的排法数为A44种；若甲不站最右端，则先从中间3个位置中选一个给甲，再从除最右端的省余的3个位置给乙，其余的三个人任意排，则此时的排法数为C31C31A33种；∴不同站法有A44+C31C31A33=78种．18解：（1）设A1表示事件“第一次操作从箱中取出的是红球”，B1表示事件“第一次操作从箱中取出的是白球”，A2表示事件“第二次操作从箱中取出的是红球”，B2表示事件“第二次操作从箱中取出的是白球”．则A1B2表示事件“第一次操作从箱中取出的是红球，第二次操作从箱中取出的是白球”．由条件概率计算公式得P（A1B2）=P（A1）P（B2|A1）=．B1A2表示事件“第一次操作从箱中取出的是白球，第二次操作从箱中取出的是红球”．由条件概率计算公式得P（B1A2）=P（B1）P（A2|B1）==．A1B2+B1A2表示“进行第二次操作后，箱中红球个数为4”，又A1B2与B1A2是互斥事件．∴P（A1B2+B1A2）=P（A1B2）+P（B1A2）=．（2）设进行第二次操作后，箱中红球个数为X，则X=3，4，5．P（X=3）=，P（X=4）=，P（X=5）=．进行第二次操作后，箱中红球个数X的分布列为：进行第二次操作后，箱中红球个数X的数学期望EX==．19．解：（1）a=0时，f（x）=x2+lnx，x＞0∴f′（x）=2x+，∴f′（1）=3，f（1）=1，∴数y=f（x）在点（1，f（1））处的切线方程为3x﹣y﹣2=0，（2）函数f（x）在[，1]上是增函数，∴f′（x）=2x﹣a+≥0，在[，1]上恒成立，即a≤2x+，在[，1]上恒成立，令h（x）=2x+≥2=2，当且仅当x=时，取等号，∴a≤2，∴a的取值范围为（﹣∞，2]（3）g（x）=x2﹣f（x）=ax﹣lnx，x∈（0，e]．∴g′（x）=a﹣=（0＜x≤e），①当a≤0时，g（x）在（0，e]上单调递减，g（x）min=g（e）=ae﹣1=3，解得a=（舍去）；②当a＞0且＜e时，即a＞，g（x）在（0，）上单调递减，在（，e]上单调递增，∴g（x）min=g（）=1+lna=3，解得a=e2，满足条件；③当a＞0，且≥e时，即0＜a≤，g（x）在（0，e]上单调递减，g（x）min=g（e）=ae﹣1=3，解得a=（舍去）；综上，存在实数a=e2，使得当x∈（0，e]时，g（x）有最小值3．20．解：（1）∵语文成绩服从正态分布N（100，17.52），∴语文成绩特别优秀的概率为p1=P（X≥135）=（1﹣0.96）×=0.02，数学成绩特别优秀的概率为p2=0.0016×=0.024，∴语文特别优秀的同学有500×0.02=10人，数学特别优秀的同学有500×0.024=12人．（2）语文数学两科都优秀的有6人，单科优秀的有10人，X的所有可能取值为0，1，2，3，P（X=0）==，P（X=1）==，P（X=2）==，P（X=3）==，∴有99%的把握认为语文特别优秀的同学，数学也特别优秀．22．解：（1）函数f（x）=|2x﹣1|﹣|x+2|=，令f（x）=0，求得x=﹣，或x=3，故不等式f（x）＞0的解集为{x|x＜﹣，或x＞3}．（2）若存在x0∈R，使得f（x0）+2a2＜4a，即f（x0）＜4a﹣2a2 有解，由（1）可得f（x）的最小值为f（）=﹣3•﹣1=﹣，故﹣＜4a﹣2a2 ，求得﹣＜a＜．21．解：（Ⅰ）对f（x）求导，得，若f（x）在点（1，f（1））处的切线与直线x+y﹣2=0平行，则f'（1）=m+n=﹣1，又f（1）=n=﹣2，求得m=1．即m=1，n=﹣2，此时f（x）=lnx﹣2x，定义域为（0，+∞），对f（x）求导，得，由，求得，即f（x）的单调递增区间为．（Ⅱ）由（Ⅰ）知，f（x）=lnx﹣2x，∃x0∈[1，e]，使得f（x0）+x0≥g（x0）成立，等价于在区间[1，e]上有解，即x2﹣2x+t（lnx﹣x）≥0在区间[1，e]上有解，因为当x∈[1，e]时，Inx≤1≤x（不同时取等号），所以lnx﹣x＜0，于是x2﹣2x+t（lnx﹣x）≥0在区间[1，e]上有解，可转化为在区间[1，e]上有解．记，则，因为x∈[1，e]，则x+2＞2≥lnx，所以h'（x）≥0，即h（x）在[1，e]上单调递增，所以，可知，于是实数t的最大值为．。
16-17.初三英语期末试卷及答案(无听力)
2016—2017学年度第一学期期末考试初三英语试卷一、单项填空（共10分，每小题1分）21. My mother is a nurse. works in a hospital near our house.A. IB. HeC. SheD. They22. We have the Live Class Friday evenings. That’s very useful.A. atB. inC. onD. to23. –were Jing Haipeng and Chen Dong in space?–For 30 days.A. How farB. How muchC. How oldD. How long24. –Who is in your class?–Bob is.A. strongB. strongerC. strongestD. the strongest25. It’s very cold outside, you’d better put on your coat.A. soB. orC. butD. for26. – May I speak to Mr. Smith?– Sorry, he isn’t in. He a meeting now.A. hasB. haveC. is havingD. was having27. We in this school for about 3 years.A. studyB. studiedC. will studyD. have studied28. – What did you do last Sunday afternoon?– I to learn Beijing Opera.A. goB. wentC. am goingD. have gone29. –Today mobile phones everywhere and every moment.–Yes. It’s convenient. But using too much is really bad for eyes.A. useB. are usedC. usedD. were used30. – Do you know ?– At 9:00 tomorrow morning.A. when Mrs. Black will arriveB. when Mrs. Black arrivedC. when will Mrs. Black arriveD. when did Mrs. Black arrive五、完形填空（共15分，每小题1.5分）People who have special needs for children understand that even small success means a lot. We’ve learned to respect people who work very hard to do 31 things, like learning to tie shoes.My eight-year-old son, Brian, wanted to win an award(奖，奖金) by learning to tie his own shoes. He was given ten days to prepare for the goal. Because Brian has Down syndrome(唐氏综合症), our whole family 32 him. Days passed and he could not do it and he cried. We cried with him. The day came for the meeting. We were worried about our lack of ability to teach such a simple task and spoke 33 about not taking him to the meeting that night. We didn’t want to make him sad.I nearly opened my 34 to tell him that it wasn’t important for him to learn to tie his shoes. But before I did that, his older sister 35 a new idea.“Brian,” she softly asked, “why don’t you try closing your eyes? See if you can tie your shoes in your imagination. That way, if you get up to go someplace early before the sun comes up, you can tie your shoes in the 36 .”Brian sat, with eyes closed, and tied his shoes perfectly. We looked at each other excitedly. And then we 37 to his meeting.Brian went first. He, with eyes closed, 38 an award that might weight more than an Olympic Gold Medal. Tears of joy fell.Brian turned something difficult into something ordinary, small and simple. When he found a new 39 to solve the problem, it became an important event because it was really difficult for him. We all cheered for him. Brian still ties his shoes as his big sister suggested so many years ago.Since then, I believe that when things get difficult and I can’t find a solution to a problem, I just close my eyes and find a 40 way.31. A. strange B. simple C. creative D. difficult32. A. stopped B. fed C. found D. taught33. A. quietly B. excitedly C. happily D. loudly34. A. mouth B. eyes C. book D. door35. A. forgot B. needed C. had D. cancelled36. A. daytime B. flat C. space D. dark37. A. walked B. flied C. hurried D. dropped38. A. lost B. got C. bought D. sent39. A. bridge B. business C. way D. lab40. A. different B. useful C. wonderful D. formal阅读理解（共50分）六、阅读下列短文，根据短文内容，从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。
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新疆哈密地区2016-2017学年高一英语上学期期末考试试题（满分：120×1.25=150分；时间：100分钟；命题人：）第Ⅰ卷第一部分：阅读理解（共两节，满分40分）第一节：（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项，并在答题卡上将该项涂黑。
AWhat do you want to be when you grow up? A teacher? A doctor? How about an ice-cream taster?Yes, there really is a job where you can get paid to taste ice cream. Just ask John Harrison, an “Official Taste Tester” for the past 21 years. Testing helps manufacturers （制造商）to be sure of a product’s quality. During his career Harrison has been responsible for approving large quantities of the sweet ice cream—as well as for developing over 75 flavors（味道）.Some people think that it would be easy to do this job; after all, you just have to like ice cream, right? No—there’s more to the job than that, says Harrison, who has a degree in chemistry. He points out that a dairy or food-science degree would be very useful to someone wanting a career in this “cool” field.In a typical morning on the job, Harrison tastes and assesses 60 ice-cream samples. He lets the ice cream warm up to about 12°F. Harrison explains, “You get more flavor from warmer ice cream, which is why some kids like to stir（搅拌）it, creating ice-cream soup.”While the ice cream warms up, Harrison looks over the samples and grades each one on its appearance. “Tasting begins with the eyes,” he explains. He checks to see if the ice cream is attractive and asks himself，“Does the product have the color expected from that flavor?” Next it’s time to taste!Continuing to think up new ideas, try out new flavors, and test samples from so many kinds of ice cream each day keeps Harrison busy but happy – working at one cool job.1. Wha t is John Harrison’s job?A. An official.B. An ice-cream taster.C. A chemist.D. An ice-cream manufacturer.2. According to John Harrison, to be qualified in the “cool field”, it is helpfulto .A. have a degree in related subjectsB. keep a diary of daily workC. think up new ideas every dayD. find out new flavors each day3. What does Harrison do first when testing ice cream?A. He stirs the ice cream.B. He tastes the flavor of the ice cream.C. He lets the ice cream warm up.D. He examines the color of the ice cream.4. Which of the following is probably the best title for the passage?A. John Harrison’s LifeB. Flavors of Ice CreamC. Tasting with EyesD. One Cool JobBHow often do you let other people like a bad driver, a rude waiter, or an angry boss, change your mood (情绪)?Sixteen years ago I learned a lesson. I got in a taxi, and we took off for Grand Central Station. We were driving in the right lane (车道) when all of a sudden, a black car jumped out of a parking space right in front of us. My taxi driver used his brakes (车闸), the tires made a loud noise, and at the very last moment our car stopped just 3cm from the back of the other car.I couldn’t believe it. But then I couldn’t believe what happened next. The driver of the other car, the guy who almost caused a big accident, turned his head around and he started shouting at us. I couldn’t believe it!My taxi driver just smiled and waved at the guy. So, I said, “Why did you just do that? This guy could have killed us!” And this is when my taxi driver told me what I now call, “The Law of the Garbage Truck”. He said, “Many people are like garbage trucks. They run around full of garbage, full of anger and disappointment. As their garbage piles up, they look for a place to dump (倾倒) it. And if you let them, they’ll dump it on you.So I started thinking how often I let Garbage Trucks run right over me and how often I take their garbage and spread it to other people.I began to see Garbage Trucks. I see the load people are carrying. I see them coming to dump it. And like my taxi driver, I don’t take it personally. I just smile, wave, wish them well, and move on.5. What happened to the author on his way to Grand Central Station?A. He was caught in a traffic jam.B. His taxi almost ran into another car.C. His taxi suddenly got a flat tire.D. He had a fight with his taxi driver.6. When the author saw his taxi driver smile and wave at the driver of the black car, he________.A. was deeply impressedB. felt quite disappointedC. got very angryD. praised him for his manners7. The underlined part “the load” in the last paragraph probably refers to _______.A. waste materialsB. the bad moodC. poor habitsD. great pressure8. How did the author learn to deal with Garbage Trucks?A. Fight back at once.B. Call the police for help.C. Dump it on someone else.D. Smile and move on.CAt times my mom has been uncomfortable seeing these qualities in me. For example，when I was 12，I went to Puerto Rico all by myself to stay with my grandmother for the summer. My mom was extremely nervous about it. She kept telling me how things were different in Puerto Rico，to always put on sunscreen（防晒霜），not to wander away from my grandmother，and other warnings. She helped me pack and did not leave the airport until she saw my plane take off.But despite（尽管） her worries，she let me go on my own. As I moved into my teens，she continued to give me space to grow and learn，even when it might have been difficult for her. When I reached my senior year，I decided to move away for college. Once again I found that I differed from my peers（同龄人）：While many of them wanted to stay close to home，I couldn’t wait to be out in the world on my own. While my mom may not have been happy at the thought of my going away，she was supportive and excited for me.One big thing I realized during my senior year，as my mom granted（允许） me more freedom，was that she actually believes in me and trusts me. That means a lot. Most of my life，and especially when I was little，the main person I tried to impress in my schoolwork or other things was my mother. I knew she expected nothing but the best from me. Sometimesit was hard to live up to her standards: getting a single B on my report card would make me feel bad because I knew she wanted me to have a ll A’s.I know that her high standards have helped me stay focused on what’s important，like education，and made me who I am. I am thankful for her support and involvement in my life. Most of all I respect her. She is the strongest woman I know and that’s why I have turned out so strong and independent.9. When the author decided to go to Puerto Rico，his mother________.A. didn’t allow him to do soB. wanted to go with himC. worried about his safetyD. asked his grandmother for advice10. Why did the author decide to move away for college?A. He wanted to be different from his peers.B. He planned to keep away from his mother.C. He intended to make his mother unhappy.D. He wanted to be independent in the outside world.11. We can learn from Paragraph 3 that the author’s mother________.A. had a high expectation of himB. cared little about his learningC. used to expect nothing from himD. was too strict with him12. What does the author mainly want to tell us in the text?A. His mother’s deep love for himB. The importance of his mother’s trust and supportC. His long way to become independentD. His good relationship with his motherDWonderful places can he visited at a low price. You call visit the following places with hotel rates and services that are down the average.SOUTH AFRICANelson Mande la’s hotel rate is 8 percent down compared to the previous years. You can enjoy safari（狩猎旅行）or just hang out with the free-walking penguins on Boulders Beach, Cape Town. Let’s take the case of Kruger National Park. The entrance fee is 20 USD（14.51 EUR）. In the Park, you will discover wild animals of Africa such as buffalo, weaver, elephant shrew, leopard tortoise, ant lion, and rhino beetle. They are gathered in one place justto make visitor’s pleasures. And this is mostly the case in all sites and attract ions in South Africa. In Johannesburg holiday makers are free to pay a visit at the Nelson Mandela Museum.VENIC （favorite destination and yet low-cost）Although Venice is known as one of the most beautiful cities in the world, hotel rates and services are low-cost compared to other destinations. With Venetian atmosphere, you can buy commodities（商品）of world-famous brands（品牌） easily. One night 3-Stars hotel only costs around 14 Euros or 19. 3 USD ill minimumATLANTIC CANADASeafood and a rich history await holidaymakers at affordable prices. Special deals and discounts（折扣） can be seen in almost all hotels in Atlantic Canada. With 48.24 USD （35 Euros）, you can spend one night in Country Hearth Inn Atlantic City. Of course, with more than that, all attractions, services and commodities are available. You can also buy a ticket at 10 OUSD to enter the Fisheries Museum of the Atlantic and its wharves（码头）.13. Where can you see a variety of wild animals?A. In the Piazza San Marco.B. In the Fisheries Museum of the Atlantic.C. In Kruger National Park.D. At the Nelson Mandela Museum.14. A young lady interested in fashion may visit _______.A. South AfricaB. VeniceC. JohannesburgD. the Atlantic Canada15. What do these places of interest have in common?A. They can provide unique animals to visitors.B. They are all places with a rich history and seafood.C. Visitors can enjoy water sports of all kinds.D. They are all interesting places with low hotel rates.第二节：(共5小题；每小题2分，满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。