模拟卷十二解析
2020年山东省新高考数学模拟试卷(十二)(含答案)
2020年山东省新高考数学模拟试卷（十二）一、单项选择题（本题共8小题，每小题5分，共40分.在每小题给出的四个选项中，只有一项是符合题目要求的）1．已知全集U＝R，集合A＝{x||x﹣2|≥2}，B＝{x|x≤2}，则（∁U A）∩B＝（）A．{x|0≤x≤2}B．{x|0＜x≤2}C．{x|﹣2≤x≤2}D．{x|﹣2＜x≤2}2．设a，b均为不等于1的正实数，则“a＞b＞1”是“log b2＞log a2”的（）A．充分不必要条件B．必要不充分条件C．充分必要条件D．既不充分也不必要条件3．元代数学家朱世杰编著的《算法启蒙》中记载了有关数列的计算问题：“今有竹七节，下两节容米四升，上两节容米二升，各节欲均容，问逐节各容几升？”其大意为：现有一根七节的竹子，最下面两节可装米四升，最上面两节可装米二升，如果竹子装米量逐节等量减少，问竹子各节各装米多少升？以此计算，第四节竹子的装米量为（）A．1升B ．升C ．升D ．升4．已知函数f（x）＝x﹣4+，x∈（0，4），当x＝a时，f（x）取得最小值b，则函数g（x）＝a|x+b|的图象为（）A ．B ．C ．D ．5．如图，在下列四个正方体中，P，R，Q，M，N，G，H为所在棱的中点，则在这四个正方体中，阴影平面与PRQ所在平面平行的是（）A ．B ．C ．D ．6．如图，棱长为2的正方体ABCD﹣A1B1C1D1中，点E、F分别为AB、A1B1的中点，则三棱锥F ﹣ECD的外接球体积为（）A ．B ．C ．D ．7．已知双曲线，过原点的直线与双曲线交于A，B两点，以AB为直径的圆恰好过双曲线的右焦点C，若△ABC的面积为2a2，则双曲线的渐近线方程为（）A ．B ．C ．D ．8．已知函数，，则方程f（g（x））＝a的实根个数最多为（）A．6B．7C．8D．9二、多项选择题（本题共4小题，每小题5分，共20分.在每小题给出的选项中，有多项符合题目要求.全部选对的得5分，部分选对的得3分，有选错的得0分）9．（5分）已知a，b均为正实数，若log a b+log b a ＝，a b＝b a ，则＝（）A ．B ．C ．D．210．（5分）对于定义域为D的函数f（x），若存在区间[m，n]⊆D，同时满足下列条件：①f（x）在[m，n]上是单调的：②当定义域是[m，n]时，f（x）的值域也是[m，n]，则称[m，n]为该函数的“和谐区间”．下列函数存在“和谐区间”的是（）A．f（x）＝x3B．f（x）＝3C．f（x）＝e x﹣1D．f（x）＝lnx+211．（5分）在△ABC中，内角A，B，C的对边分别是a，b，c，则（）A．若2cos C（a cos B+b cos A）＝c，则C ＝B．若2cos C（a cos B+b cos A）＝c，则C ＝C．若边BC 上的高为a ，则当+取得最大值时，A ＝D．若边BC 上的高为a ，则当+取得最大值时，A ＝12．（5分）已知数列{a n}是等差数列，前n项和为S n，满足a1+5a3＝S8，下列选项正确的有（）A．a10＝0B．S10最小C．S7＝S12 D．S20＝0三、填空题（本题共4小题，每小题5分，共20分）13．（5分）（2x+y）（x﹣2y）5展开式中x3y3的系数为．14．（5分）已知x＞0，y＞0，是2x 与4y 的等比中项，则的最小值．15．（5分）已知圆x2+y2+4x﹣5＝0的弦AB的中点为（﹣1，1），直线AB交x轴于点P，则的值为．16．（5分）已知角θ的顶点为坐标原点，始边为x轴的非负半轴，若P（﹣，m）是角θ终边上的一点，且sinθ＝，n＝tan（θ+），则m＝，n＝．四、解答题（本题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤）17．（10分）在△ABC中，内角A，B，C所对的边分别为a，b，c，函数f（x）＝cos x（sin x﹣cos x）+，将f（x）的图象向左平移个单位得到函数y＝g（x）的图象，且g（）＝，c＝．（1）求C；（2）若3（sin B﹣sin C）2＝3sin2A﹣8sin B sin C，求cos（A﹣C）．18．（12分）设数列{a n}的前n项和为S n，若．（1）求数列{a n}的通项公式；（2）设b n＝（n+3）a n，求数列{b n}的前n项和T n．19．（12分）已知五边形ABECD由一个直角梯形ABCD与一个等边三角形BCE构成，如图1所示，AB⊥BC，AB∥CD，且AB＝2CD．将梯形ABCD沿着BC折起，如图2所示，且AB⊥平面BEC．（Ⅰ）求证：平面ABE⊥平面ADE；（Ⅱ）若AB＝BC，求二面角A﹣DE﹣B的余弦值．20．（12分）抛物线C：y＝x2，直线l的斜率为2．（Ⅰ）若l与C相切，求直线l的方程；（Ⅱ）若l与C相交于A，B，线段AB的中垂线交C于P，Q ，求的取值范围．21．（12分）某读书协会共有1200人，现收集了该协会20名成员每周的课外阅读时间（分钟），其中某一周的数据记录如下：75 60 35 100 90 50 85 170 65 70 125 75 70 85 155 110 75 130 80 100对这20个数据按组距30进行分组，并统计整理，绘制了如下尚不完整的统计图表：阅读时间分组统计表（设阅读时间为x分钟）组别时间分组频数男性人数女性人数A30≤x＜60211B60≤x＜901046C90≤x＜120m a1D120≤x＜150211E150≤x＜180n2b（I）写出m，n的值，请估计该读书小组中人均每周的课外阅读时长，以及该读书小组中一周阅读时长不少于90分钟的人数；（II）该读书协会拟发展新成员5人，记新成员中每周阅读时长在[60，90）之间的人数为ξ，以上述统计数据为参考，求ξ的分布列和数学期望；（Ⅲ）完成下面的2x2列联表，并回答能否有90%的把握认为“每周至少阅读120分钟与性别有关”？每周阅读时间不少于120分钟每周阅读时间少于120分钟合计男女合计附：K2＝P（K20.1500.100 0.0500.0250.010 0.005 0.001≥k0）k0 2.072 2.706 3.841 5.024 6.6357.87910.828 22．（12分）已知函数f（x）＝x﹣alnx+a﹣1（a∈R）．（Ⅰ）讨论f（x）的单调性；（Ⅱ）若x∈[e a，+∞）时，f（x）≥0恒成立，求实数a的取值范围．2020年山东省新高考数学模拟试卷（十二）参考答案与试题解析一、单项选择题（本题共8小题，每小题5分，共40分.在每小题给出的四个选项中，只有一项是符合题目要求的）1．【分析】可以求出集合A，然后进行交集和补集的运算即可．【解答】解：∵A＝{x|x≤0或x≥4}，B＝{x|x≤2}，U＝R，∴∁U A＝{x|0＜x＜4}，（∁U A）∩B＝{x|0＜x≤2}．故选：B．【点评】本题考查了描述法的定义，绝对值不等式的解法，交集和补集的运算，全集的定义，考查了计算能力，属于基础题．2．【分析】根据充分条件和必要条件的定义结合不等式的解法进行判断即可．【解答】解：a，b均为不等于1的正实数，①若“a＞b＞1”时由对数函数的性质可得：一象限底大图低，相同自变量为2时，底大函数值小，可得log b2＞log a2成立．②若：“log b2＞log a2”有①若a，b均大于1，由log b2＞log a2，知必有a＞b＞1；②若a，b均大于0小于1，依题意，必有0＜b＜a＜1；③若log a2＜log b2＜0，则必有0＜b＜a＜1；故：“log b2＞log a2”不能推出a＞b＞1；综上所述由充要条件的定义知，A正确．故选：A．【点评】本题主要考查充分条件和必要条件的判断，根据不等式的解法是解决本题的关键．3．【分析】设竹子自下而上的各节容米量分别为a1，a2，…，a7，由题意得a1+a2+a6+a7＝6，由等差数列的性质能求出第四节竹子的装米量．【解答】解：设竹子自下而上的各节容米量分别为a1，a2，…，a7，由题意得a1+a2+a6+a7＝6，由等差数列的性质得：a1+a7＝2a4＝6，解得第四节竹子的装米量为a4＝（升）．故选：B．【点评】本题考查第四节竹子的装米量的求法，考查等差数列的性质等基础知识，考查运算求解能力，是基础题．4．【分析】先根据基本不等式求出a，b的值，再结合指数函数的性质及函数的图象的平移可求【解答】解：∵x∈（0，4），∴x+1＞1∴f（x）＝x﹣4+＝x +1+﹣5≥2﹣5＝1，当且仅当x＝2时取等号，此时函数有最小值1∴a＝2，b＝1，此时g（x）＝2|x+1|＝，此函数可以看成函数y ＝的图象向左平移1个单位结合指数函数的图象及选项可知A正确故选：A．【点评】本题主要考察了基本不等式在求解函数的最值中的应用，指数函数的图象及函数的平移的应用是解答本题的关键5．【分析】利用平面的基本性质作出经过P、Q、R三点的平面，然后判断选项的正误即可．【解答】解：由题意可知经过P、Q、R三点的平面如图：红色线的图形，可知N在经过P、Q、R三点的平面上，所以B、C错误；MC1与QE是相交直线，所以A不正确；故选：D．【点评】本题考查平面与平面平行的判断定理的应用，平面的基本性质的应用，是基本知识的考查．6．【分析】首先确定球心的位置，进一步利用勾股定理的应用求出求的半径，进一步求出球的体积．【解答】解：在正方体ABCD﹣A1B1C1D1中，连接FC1，FD1，三棱锥F﹣ECD的外接球即为三棱柱FC1D1﹣ECD的外接球，在△ECD中，取CD中点H，连接EH，则EH为边CD的垂直平分线，所以△ECD的外心在EH上，设为点M，同理可得△FC1D1的外心N，连接MN，则三棱柱外接球的球心为MN的中点设为点O，由图可得，EM2＝CM2＝CH2+MH2，又MH＝2﹣EM，CH＝1，如右图所示：，可得，所以，解得，所以．故选：D．【点评】本题考查的知识要点：锥体与球的关系的应用，球的体积公式的应用，主要考查学生的运算能力和转换能力及思维能力，属于基础题型．7．【分析】设双曲线的左焦点为F，连接AF，BF，可得四边形AFBC为矩形，由双曲线的定义和勾股定理，以及三角形的面积公式，化简整理可得a，b的关系，即可得到所求双曲线的渐近线方程．【解答】解：设双曲线的左焦点为F，连接AF，BF，由题意可得AC⊥BC，可得四边形F ABC为矩形，即有|AF|＝|BC|，设|AC|＝m，|BC|＝n，可得n﹣m＝2a，n2+m2＝4c2，mn＝2a2，即有4c2﹣8a2＝4a2，即有c ＝a，b ＝＝a，可得双曲线的渐近线方程为y ＝±x．故选：B．【点评】本题考查双曲线的定义和方程、性质，考查矩形的定义和勾股定理的运用，考查运算能力，属于基础题．8．【分析】由方程的解的个数与函数图象的交点的个数的关系得：方程f（g（x））＝a的实根个数为函数t＝g（x）的图象与直线t＝t1，t＝t2，t＝t3，t＝t4的交点个数之和，再结合函数图象观察可得解．【解答】解：设t＝g（x），则f（t）＝a，则方程f（g（x））＝a的实根个数为函数t＝g（x）的图象与直线t＝t1，t＝t2，t＝t3，t＝t4的交点个数之和，要方程f（g（x））＝a的实根个数最多，则需f（t）＝a的解如图所示，由图（2）可知，函数t＝g（x）的图象与直线t＝t1，t＝t2，t＝t3，t＝t4的交点个数之和为8，故选：C．【点评】本题考查了方程的解的个数与函数图象的交点的个数的关系及作图能力，属难度较大的题型．二、多项选择题（本题共4小题，每小题5分，共20分.在每小题给出的选项中，有多项符合题目要求.全部选对的得5分，部分选对的得3分，有选错的得0分）9．【分析】设t＝log a b，代入化解求出t的值，得到a的b关系式，由a b＝b a可求出a，b的值．【解答】解：令t＝log a b，则t +＝，∴2t2﹣5t+2＝0，（2t﹣1）（t﹣2）＝0，∴t ＝或t＝2，∴log a b ＝或log a b＝2∴a＝b2，或a2＝b∵a b＝b a，代入得∴2b＝a＝b2或b＝2a＝a2∴b＝2，a＝4，或a＝2．b＝4∴．或故选：AD．【点评】本题考查对数的运算及性质，换元法的应用，属于基础题．10．【分析】由题意，函数在“和谐区间”上单调递增，且满足f（x）＝x至少有两个解，逐项判断即可．【解答】解：由题意，函数在“和谐区间”上单调递增，且满足f（x）＝x至少有两个解，对于A选项，函数f（x）＝x3在定义域R上单调递增，且x3＝x有解﹣1，0，1，满足条件，故正确；对于B选项，函数f（x）＝3在（0，+∞）上单调递增，且有解1，2，满足条件，故正确；对于C选项，函数f（x）＝e x﹣1在定义域上单调递增，但e x﹣1＝x只有一个解0，不满足条件，故错误；对于D选项，函数f（x）＝lnx+2在（0，+∞）上单调递增，显然函数f（x）＝lnx+2与函数y ＝x在（0，+∞）上有两个交点，即lnx+2＝x有两个解，满足条件，故正确．故选：ABD．【点评】本题以新定义问题为载体，考查了函数的单调性、零点及函数图象等基础知识点，属于基础题．解题的关键是理解“和谐区间”的定义．11．【分析】对于选项A，B，由正弦定理，两角和的正弦函数公式可求2cos C sin C＝sin C，结合sin C ≠0，可得cos C ＝，结合范围C∈（0，π），可求C的值；对于选项C，D，由三角形的面积公式可求a2＝2bc sin A ，利用余弦定理，两角和的正弦函数公式可求+＝4sin（A +），结合已知利用正弦函数的性质即可求解．【解答】解：∵2cos C（a cos B+b cos A）＝c，∴由正弦定理可得2cos C（sin A cos B+sin B cos A）＝sin C，∴2cos C sin（A+B）＝2cos C sin C＝sin C，∵sin C≠0，∴可得cos C ＝，∵C∈（0，π），∴C ＝，可得A正确，B错误．∵边BC 上的高为a，∴bc sin A ＝•a •，∴a2＝2bc sin A，∵cos A ＝，∴b2+c2＝a2+2bc cos A＝2bc sin A+2bc cos A，∴+＝＝2sin A+2cos A＝4sin（A +）≤4，当A +＝时等号成立，此时A ＝，故C正确，D错误．故选：AC．【点评】本题主要考查了正弦定理，两角和的正弦函数公式，三角形的面积公式，余弦定理，正弦函数的性质在解三角形中的应用，考查了转化思想，属于中档题．12．【分析】根据题意，结合等差数列的前n项和公式以及通项公式，依次分析选项，综合即可得答案．【解答】解：根据题意，数列{a n}是等差数列，若a1+5a3＝S8，即a1+5a1+10d＝8a1+28d，变形可得a1＝﹣9d，又由a n＝a1+（n﹣1）d＝（n﹣10）d，则有a10＝0，故A一定正确，不能确定a1和d的符号，不能确定S10最小，故B不正确；又由S n＝na1+＝﹣9nd +＝×（n2﹣19n），则有S7＝S12，故C一定正确，则S20＝20a1+d＝﹣180d+190d＝﹣10d，S20≠0，则D不正确，故选：AC．【点评】本题考查等差数列的性质以及前n项和公式，关键是掌握与等差数列有关的公式，属于基础题．三、填空题（本题共4小题，每小题5分，共20分）13．【分析】根据题意，结合二项式定理把（x+2y）5按照二项式定理展开，由多项式乘法的性质分析可得答案．【解答】解：根据题意，（x﹣2y）5＝x5﹣10x4y+40x3y2﹣80x2y3+80xy4﹣32y5，则（2x+y）（x+2y）5展开式中x3y3的系数为2×（﹣80）+1×40＝﹣160+40＝﹣120，故答案为：﹣120．【点评】本题考查二项式定理的应用，关键是掌握二项式定理的形式，属于基础题．14．【分析】由等比数列可得x+2y＝1，则＝+＝1++，由基本不等式可得．【解答】解：x＞0，y＞0，是2x与4y的等比中项，则2x•4y＝2，∴x+2y＝1，∴＝+＝1++≥1+2＝1+2，当且仅当＝时，即x ＝﹣1，y ＝取等号，故答案为：2+1【点评】本题考查基本不等式，涉及等比数列的性质，属基础题．15．【分析】由已知先求k MC，然后根据圆的性质可求k AB，写出AB所在直线方程，联立方程可求A，B，然后根据向量数量积的坐标表示即可求解．【解答】解：设M（﹣1，1）圆心C（﹣2，0），∵k MC ＝＝1，根据圆的性质可知，k AB＝﹣1，∴AB所在直线方程为y﹣1＝﹣（x+1），即x+y＝0，联立方程可得，2x2+4x﹣5＝0，设A（x1，y1），B（x2，y2），则x1+x2＝﹣，令y＝0可得P（0，0），＝x1x2+y1y2＝2x1x2＝﹣5，故答案为：﹣5．【点评】本题主要考查了向量的数量积的坐标表示及直线与圆相交性质的简单应用．16．【分析】由题意利用任意角的三角函数的定义，两角和的正切公式，求得m、n的值．【解答】解：若P （﹣，m）是角θ终边上的一点，且sinθ＝＝，∴m ＝．∵tanθ＝＝﹣1，n＝tan（θ+）＝＝0，故答案为：；0．【点评】本题主要考查任意角的三角函数的定义，两角和的正切公式，属于基础题．四、解答题（本题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤）17．【分析】（1）先利用三角恒等变换将f（x）化简成y＝A sin（ωx+θ）的形式，再利用图象平移变换方法得到g（x），根据g （）＝，可求得角C．（2）利用正弦定理将给的式子化边，利用余弦定理可求得cos A ，结合，问题可解．【解答】解：（1）f（x）＝cos x（sin x ﹣cos x）+＝＝，∴g（x）＝f（x）＝sin（2x ﹣），∵g （）＝，∴，∴，∴，故C ＝．（2）∵3（sin B﹣sin C）2＝3sin2A﹣8sin B sin C，由正弦定理得：3（b﹣c）2＝3a2﹣8bc，∴，∴，∴，∴cos（A﹣C ）＝，＝．【点评】本题通过考查三角函数的恒等变换和图象变换以及正余弦定理的应用，考查了学生的数学运算、逻辑推理等数学核心素养．属于中档题．18．【分析】（1）通过，说明数列{a n}是以2为首项，2为公比的等比数列，求解通项公式．（2）由（1）得，，利用错位相减法求解数列的和即可．【解答】解：（1）因为，①当n＝1时，2a1﹣S1＝2a1﹣a1＝2，所以a1＝2．当n≥2时，2a n﹣1﹣S n﹣1＝2，②①﹣②得2a n﹣S n﹣（2a n﹣1﹣S n﹣1）＝0，即a n＝2a n﹣1．因为a1＝2≠0，所以a n≠0，所以（n∈N*，且n≥2），所以数列{a n}是以2为首项，2为公比的等比数列，所以．（2）由（1）得，，所以，③，④③﹣④得，＝6+（21+22+23+…+2n）﹣（n+3）×2n+1＝＝6+2n+1﹣2﹣（n+3）×2n﹣1＝4﹣（n+2）2n+1，所以．【点评】本题考查数列的递推关系式的应用，数列求和，考查计算能力．19．【分析】（I）取BE的中点F，AE的中点G，证明CF⊥平面ABE，通过证明四边形CDGF是平形四边形得出CF∥DG，故DG⊥平面ABE，于是平面ABE⊥平面ADE；（II）建立空间坐标系，计算平面ADE和平面BDE的法向量，通过计算法向量的夹角得出二面角的大小．【解答】（Ⅰ）证明：取BE的中点F，AE的中点G，连接FG、GD、CF，则GF AB．∵DC AB，∴CD GF，∴四边形CFGD为平行四边形，∴CF∥DG．∵AB⊥平面BEC，∴AB⊥CF．∵CF⊥BE，AB∩BE＝B，∴CF⊥平面ABE．∵CF∥DG，∴DG⊥平面ABE．∵DG⊂平面ADE，∴平面ABE⊥平面ADE．（Ⅱ）解：过E作EO⊥BC于O．∵AB⊥平面BEC，∴AB⊥EO．∵AB∩BC＝B，∴EO⊥平面ABCD．以O为坐标原点，OE、BC所在的直线分别为x轴、y轴，过O且平行于AB的直线为z轴建立如图所示的空间直角坐标系．设AB＝BC＝4，则A（0，﹣2，4），B（0，﹣2，0），D（0，2，2），E（2，0，0），∴＝（﹣2，2，2），＝（﹣2，﹣2，4），＝（﹣2，﹣2，0）．设平面EAD 的法向量为＝（x1，y1，z1），则有，即，取z1＝2得x1＝，y1＝1，则＝（，1，2），设平面BDE 的法向量为＝（x2，y2，z2），则，即，取x2＝1，得y2＝﹣，z2＝2，则＝（1，﹣，2）．∴cos ＜＞＝＝＝．又由图可知，二面角ADEB的平面角为锐角，∴二面角A﹣DE﹣B 的余弦值为．【点评】本题考查了面面垂直的判定，空间向量与二面角的计算，属于中档题．20．【分析】（1）设直线l的方程为y＝2x+b，将直线l与抛物线C的方程联立，利用△＝0求出b 的值，从而得出直线l的方程；（2）设点A（x1，y1）、B（x2，y2）、P（x3，y3）、Q（x4，y4），设直线l的方程为y＝2x+b，将直线l的方程与抛物线C的方程联立，由△＞0得出b的范围，并列出韦达定理，求出|AB|并求出线段AB的中点坐标，然后得出线段AB中垂线的方程PQ，将直线PQ的方程与抛物线C的方程联立，列出韦达定理并求出|PQ|，然后得出的表达式，结合不等式的性质求出这个代数式的取值范围．【解答】解：（1）设直线l的方程为y＝2x+b，联立直线l与抛物线C 的方程，得x2﹣2x﹣b＝0，△＝4+4b＝0，所以，b＝﹣1，因此，直线l的方程为y＝2x﹣1；（2）设直线l的方程为y＝2x+b，设点A（x1，y1）、B（x2，y2）、P（x3，y3）、Q（x4，y4），联立直线l与抛物线C 的方程，得x2﹣2x﹣b＝0，△＝4+4b＞0，所以，b＞﹣1．由韦达定理得x1+x2＝2，x1x2＝﹣b．所以，，因为线段AB的中点为（1，2+b），所以，直线PQ 的方程为，由，得2x2+x﹣5﹣2b＝0，由韦达定理得，，所以，，所以，，所以，的取值范围是．【点评】本题考查抛物线的综合问题，考查韦达定理设而不求法在抛物线综合问题中的应用，考查计算能力，属于中等题．21．【分析】（Ⅰ）由阅读时间分组统计表，得到m＝4，n＝2．由此能估计该读书小组中人均每周的课外阅读时长和该读书小组中一周阅读时长不少于90分钟的人数．（Ⅱ）估计新成员每周阅读时长在[60，90）之间的概率为，依题意ξ～B（5，），由此能求出ξ的分布列和数学期望．（Ⅲ）完成下面的2x2列联表，求出k0≈0.808，从而没有90%的把握认为“每周至少阅读120分钟与性别有关”．【解答】解：（Ⅰ）由阅读时间分组统计表，得到m＝4，n＝2．估计该读书小组中人均每周的课外阅读时长为：＝93分钟．该读书小组中一周阅读时长不少于90分钟的人数为：1200×＝480人．（Ⅱ）估计新成员每周阅读时长在[60，90）之间的概率为，依题意ξ～B（5，），共分布列为：P（ξ＝0）＝＝，P（ξ＝1）＝＝，P（ξ＝2）＝＝，P（ξ＝3）＝＝，P（ξ＝4）＝＝，P（ξ＝5）＝＝，∴ξ的分布列为：ξ012345P∴E（ξ）＝5×＝．（Ⅲ）完成下面的2x2列联表：每周阅读时间不少于120分钟每周阅读时间少于120分钟合计男3811女189合计41620k0＝≈0.808，∴没有90%的把握认为“每周至少阅读120分钟与性别有关”．【点评】本题考查概率的求法，考查离散型随机变量的分布列、数学期望的求法，考查独立检验的应用，考查运算求解能力，考查函数与方程思想，是中档题．22．【分析】（Ⅰ）求出函数的导数，通过讨论a的范围，求出函数的单调区间即可；（Ⅱ）通过讨论a的范围，结合函数的单调性求出函数的最小值，从而确定a的范围即可．【解答】解：（Ⅰ）函数f（x）的定义域是（0，+∞），f′（x）＝1﹣＝，①当a≤0时，f′（x）＞0，f（x）在（0，+∞）递增，②当a＞0时，由f′（x）＝0，解得：x＝a，故f（x）在（0，a）递减，在（a，+∞）递增，综上，当a≤0时，f（x）在（0，+∞）递增，当a＞0时，f（x）在（0，a）递减，在（a，+∞）递增；（Ⅱ）①当a＝0时，∵x≥1，∴f（x）＝x﹣1≥0恒成立，故a＝0符合题意，②当a＜0时，e a＜0，∵f（1）＝a＜0，故f（x）≥0不恒成立，舍，③当a＞0时，由（Ⅰ）知f（x）在（0，a）递减，在（a，+∞）递增，下面先证明：e a＞a（a＞0），设p（a）＝e a﹣a，∵p′（a）＝e a﹣1＞0，∴p（a）在（0，+∞）递增，p（a）≥p（0）＝1＞0，故e a＞a，故f（x）在[e a，+∞）递增，故f（x）min＝f（e a）＝e a﹣a2+a﹣1，设q（a）＝e a﹣a2+a﹣1（a＞0），则q′（a）＝e a﹣2a+1，q″（a）＝e a﹣2，由q″（a）＞0，解得：a＞ln2，由q″（a）＜0，解得：0＜a＜ln2，故q′（a）在（0，ln2）递减，在（ln2，+∞）递增，故q′（a）≥q′（ln2）＝3﹣2ln2＞0，故q（a）在（0，+∞）递增，故q（a）＞q（0）＝0，故f（x）min＞0，故f（x）≥0恒成立，故a＞0符合题意，综上，a的范围是[0，+∞）．【点评】本题考查了函数的单调性，最值问题，考查导数的应用以及分类讨论思想，转化思想，是一道综合题．。
2021年专升本《英语》模拟培训试卷十二及答案
2021年专升本《英语》模拟培训试卷⼗⼆及答案2021年专升本《英语》培训模拟试卷⼗⼆Part Ⅰ. Vocabulary and Structure (1×40 points)Directions: There are 40 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the ONE that best completes the sentence，and then mark the corresponding letter on the Answer Sheet.1. ______she broke the world record in the Winter Olympic Games was beyond our imagination.A. WhatB. WhileC. ThatD. When2. He has always regretted ______ the attractive girl for the phone number.A. not askingB. to askC. not to askD. asking3. What he said at the meeting left me ______ about his real purpose.A. wonderedB. wonderC. to wonderD. wondering4. Some unexpected problems ______ when he left his job.A. roseB. arousedC. raisedD. arose5. They ______ informed, or they would get here on time.A. mustn’t have beenB. shouldn’t have beenC. can’t have beenD. needn’t have been6. His parents no longer worry about him.He has a good job and can live ______ now.A. of his ownB. by his ownC. on his ownD. with his own7. We are sometimes afraid to speak out our minds lest it ______ trouble.A. would causeB. could causeC. causeD. causes8. We should urge the government to take some ______ measures to ______ the unpleasant social problems.A. efficient; tackleB. effective; handleC. efficient; copeD. effective; deal9. Be careful when you watch the painting as it is ______.A. valuelessB. pricelessC. costlessD. worthless10. The designing of such a complicated device is ______ an easy job.A. by all meansB. by any meansC. by means ofD. by no means11. I like watching TV ______ to the cinema.A. more than to goB. than goingC. more than goingD. rather than to go12. The manager promised to keep me ______ of how our business was going on.A. to be informedB. on informingC. informedD. informing13. ______ we have finished the course, we shall start doing more revision work.A. For nowB. Now thatC. Ever sinceD. By now14. The goals ______ he had fought all his life no longer seemed important to him.A. after whichB. for whichC. with whichD. at which15. We are interested in the weather because it ______ us so directly—what we wear, what we do, and even how we feel.A. benefitsB. affectsC. guidesD. effects16. ______ with the size of the whole earth, the highest mountain does not seem high at all.A. When comparedB. CompareC. While comparingD. Comparing17. Children are very curious ______.A. at heartB. in personC. on purposeD. by nature18. The match was cancelled because most of the members ______ a match withouta standard court.A. objected to havingB. were objected to haveC. objected to haveD. were objected to having19. When the whole area was ______ by the flood, the government sent food there by helicopter.A. cut awayB. cut downC. cut upD. cut off20. I appreciate ______ to your home.A. to be invitedB. to have invitedC. having invitedD. being invited21. The two passengers, as well as the driver, ______ in the traffic accident.A. were injuredB. was woundedC. was harmedD. were damaged22. I suddenly realized that he was trying to ______ quarrelling with me.A. considerB. avoidC. enjoyD. prevent23. It is the mistake ______ you should focus on, not the person.A. whichB. in thatC. thatD. for which24. The price of shoes is ______ during the Spring Festival.A. lowerB. more expensiveC. smallerD. cheaper25. It was essential that the application forms ______ back on time.A. must be sentB. was sentC. be sentD. were sent26. We can’t get rid of war ______ we get rid of the cause of war.A. whenB. unlessC. unlikeD. except27. The waterfall was running down from the high cliff so smoothly that it looked like a piece of silver cloth ______ from the sky.A. hanging backB. hanging downC. hangedD. hanged down28. ______ by division of labor can an increase in production be achieved.A. IfB. ExceptC. OnlyD. Otherwise29. Your watch is always slow; it needs to be ______.A. fixedB. controlledC. regulatedD. governed30. No sooner had he entered the hall ______ the meeting started.A. whenB. beforeC. afterD. than31. The students will put off the outing until next week, ______ they won’t be so busy.A. whenB. whichC. asD. while32. They strongly believed that Bible was ______.A. worth to read itB. worth reading itC. worthy of reading itD. worthy of being read33. The number of mixed couples in China this year ______ much larger than ______ last year.A. is; thatB. are; thoseC. is; itD. are; /34. It is important that everyone ______ use of every chance at hand.A. makesB. makeC. has madeD. will make35. The fashionable sunglasses made in Shanghai ______ comfortably.A. are wornB. wearC. wearingD. were worn36. Our class ______ more than 50 students, some of whom are from other provinces.A. makes up ofB. composes ofC. makes up forD. consists of37. All factors ______, they began to do something about the situation.A. were taken into considerationB. took into considerationC. having been taken into considerationD. having taken into consideration38. Hardly ______ the photo when he remembered his girlfriend.A. had he seenB. he sawC. did he seeD. saw he39. They would have accomplished the project, but they ______ abroad for a conference.A. would goB. had goneC. have goneD. went40. The Summer Palace is the desirable place ______ we long for.A. whereB. in whichC. thatD. whatPart Ⅱ. Cloze (1×20 points)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B,C and D. You should choose the ONE that best fits into the passage and mark the corresponding letter on the Answer Sheet.The number of speakers of English in Shakespeare’s time is estimated to have been about five million. Today it is estimated that some 260 million people speak it as a(an) (41) language, mainly in the United States, Canada, Great Britain, Ireland, South Africa, Australia and New Zealand. In (42) to the standard varieties of English found in these areas, (43) are a greatmany regional and social varieties of the languages as well as (44) levels of usage that are employed both in its spoken and written forms.In fact, it is (45) to estimate the number of people in the world who have (46) an adequate working knowledge of English in addition to their own languages. The (47) for English learning and the situations in which such learning takes place are so varied that it is (48) to explain and still more difficult to judge (49) forms an adequate working knowledge for each situation.The main reason for the widespread (50) for English is its present day importance as a world language. Besides (51) the indefinite needs of its native speakers,English is a language in (52) some of important works in science, technology, and other (53) are being produced, and not always by native speakers.It is widely used for (54) purposes as meteorological(⽓象的) and airport communications, international conferences, and the (55) of information over the radio and television networks of many (56). It is a language wider communication for a number of wider communication for a number of developing countries, specially (57) British colonies. Many of these countries have multilingual (58) and need a language for internal communication in such matters as government, commerce, industry, law and (59) as well as for international communication and for entrance (60) the scientific and technological developments in the West.41. A. foreign B. native C. second D. official42. A. addition B. relation C. accordance D. inclusion43. A. they B. which C. there D. that44. A. various B. similar C. familiar D. same45. A. possible B. necessary C. unnecessary D. impossible46. A. associated B. coordinated C. acquired D. acquainted47. A. purpose B. cause C. effect D. method48. A. simple B. natural C. practical D. difficult49. A. what B. how C. why D. where50. A. require B. request C. supply D. demand51. A. providing B. serving C. supposing D. leaving52. A. that B. what C. where D. which53. A. arts B. courses C. races D. fields54. A. such B. all C. many D. those55. A. use B. spread C. cover D. connection56. A. cities B. stations C. states D. nations57. A. latter B. former C. later D. formal58. A. languages B. populations C. accents D. customs59. A. education B. market C. college D. business60. A. of B. in C. to D. withPart Ⅲ. Reading Comprehension (2×20 points)Directions: There are 4 passages in this part. Each passage is followed by some questions or incomplete statements. For each of them there are 4 choices marked A,B,C and D. You should decide on the best choice, and mark the corresponding letter on the Answer Sheet.Passage 1Large companies need a way to reach the saving of the public at large(⼤多数, 整个). The same problem, on a small scale,faces practically every company trying to develop new products and create new jobs .There can be little prospect of raising(筹集) the sort of sums needed from friends and people we know, and while banks may agree to provide short-term finance, they are generally unwilling to provide money on a permanent basis for long-term projects. So companies turn to the public, inviting people to lend them money, or take a share in the business in exchange for a share in future profits. They do this by issuing(发⾏) stocks andshares in the business through the Stock Exchange(证券交易所). By doing that so they can put into circulation(流通) the savings of individuals and institutions, both at home and overseas.When the saver needs his money back, he does not have to go to the company with whom he originally placed it. Instead, he sells his shares to some other saver who is seeking to invest his money.Many of the services needed both by industry and by each of us are provided by the Government or by local authorities. Without hospitals, roads, electricity, telephones, railways, this country could not function(运作). All these require continuous spending on new equipment and new development if they are to serve us properly, requiring more money than is raised through taxes alone. The government, local authorities, and nationalized industries therefore frequently need to borrow money to finance major capital spending, and they, too, come to the Stock Exchange.There is hardly a man or woman in this country whose job or whose standard of living does not depend on the ability of his or her employers to raise money to finance new development. In one way or another this new money must come from the savings of the country. The Stock Exchange exists to provide a channel(渠道) through which these savings can reach those who need finance.61. Almost all companies involved in new production and development must ______.A. rely on their own financial resourcesB. persuade the banks to provide long-term financeC. borrow large sums of money from friends and people they knowD. depend on the population as a whole for finance62. The money which enables these companies to go ahead with their projects is ______.A. repaid to its original owners as soon as possibleB. raised by the selling of shares in the companiesC. exchanged for part ownership in the Stock ExchangeD. invested in different companies on the Stock Exchange63. When the savers want their money back they ______.A. ask another company to obtain their money for themB. look for other people to borrow money fromC. put their shares in the company back on the marketD. transfer their money to a more successful company64. All the essential services on which we depend are ______.A. run by the Government or our local authoritiesB. in constant need of financial supportC. financed wholly by rates and taxesD. unable to provide for the needs of the population65. The Stock Exchange makes it possible for the Government, local authorities and nationalized industries ______.A. to borrow as much money as they wishB. to make certain everybody saves moneyC. to raise money to finance new developmentD. to make certain everybody lends money to themPassage 2In the United States, 30 percent of the adult population has a “weight problem”. To many people, the cause is obvious: they eat too much. But the scientific evidence does little to support this idea. Going back to the America of 1910, we can find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines less and didn’t watch television.Several modern studies, moreover, have shown that fatter people do not eat more on the average than thinner people. In fact, some investigations, such as the 1979 study of 3,545 London office workers, report that, on balance, fat people eat less than slimmer people.Studies show that slim people are more active than fat people. A study by a research group at Stanford University School of Medicine found the following interesting facts: The more the men ran, the more body fat they lost. The more they ran, the greater amount of food they ate.Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.66. The physical problem that many adult Americans have is that ______.A. they are too slimB. they work too hardC. they are too fatD. they lose too much body fat67. According to the article, given 500 adult Americans, ______ people will havea “weight problem”.A. 30B. 50C. 100D. 15068. Is there any scientific evidence to support that eating too much is the cause of a “weight problem”?A. Yes, there is plenty of evidence.B. Of course, there is some evidence to show this is true.C. There is hardly any scientific evidence to support this.D. We don’t know because the information is not given.69. In comparison with the adult American population today, the Americans of the 1910s ______.A. ate more food and had more physical activitiesB. ate less food but had more activitiesC. ate less food and had less physical exerciseD. had more weight problems70. Modern scientific researches have reported to us that ______.A. fat people eat less food and are less activeB. fat people eat more food than slim people and are more activeC. fat people eat more food than slim people but are less activeD. thin people run less, but have greater increase in food intakePassage 3Catherine Smith, a second-year college student at Colorado State University, first had a problem taking tests when she began college. “I was always well preparedfor my tests. Sometimes I studied for weeks before a test. Yet I would go to take the test, only to find I could not answer the questions correctly. I would blank out because of nervousness and fear. I couldn’t think of the answer. My low grades on the test did not show what I knew to the teacher.”This student was experiencing something called test anxiety. Because a student worries and is uneasy about a test, his or her mind does not work as well as it usually does. The student cannot write or think clearly because of the extreme tension and nervousness. Although poor grades are often a result of poor study habits, sometimes test anxiety causes the low grades. Recently, test anxiety has been recognized as a real problem, not just an excuse or a false explanation of lazy students. Special university counseling course try to help students. In these courses, counselors try to help students by teaching them how to manage test anxiety. At some universities, students take tests to measure their anxiety. If the tests show their anxiety is high, the students can take short courses to help them deal with their tension. These courses teach students how to relax their minds. Students are trained to become calm in very tense situations. By controlling their nervousness, they can let their minds work at ease. Learned information then comes out without difficulty on a test.An expert at the University of California explains, “With almost all students, relaxation and less stress are felt after talking our program. Most of them experience better control during their tests. Almost all have some improvement. With some, the improvement is very great.”71. To “blank out” is probably ______.A. to be like a blanketB. to be sure of an answerC. to be unable to think clearlyD. to show knowledge to the teacher72. Poor grades are usually the result of ______.A. poor hygienic habitsB. test anxietyC. lack of sleepD. laziness73. Test anxiety has been recognized as ______.A. an excuse for lazinessB. the result of poor study habitsC. a real problemD. something that cannot be changed74. To deal with this problem, students are advised to ______.A. take a short course on anxietyB. read about anxietyC. be able to manage or understand their anxietyD. take tests to prove they are not anxious75. A university of California counselor said ______.A. all students could overcome the anxiety after taking a special test anxiety programB. almost all students felt less stressful after taking a University of California counseling courseC. students found it difficult to improve even though they had taken a special test anxiety courseD. students found it easy to relax as soon as they entered a University ofCalifornia counseling coursePassage 4Our child’s behavior is greatly influenced by the way we react to what he has done. Our reactions help to determine whether our child will repeat his behavior or whether he will do something different. This statement is a very important part of a principle of behavioral psychology.The principle states that a behavior is influenced or affected by how the environment immediate responds to the behavior. Perhaps without realizing it, you have used this principle many times.On the occasion when you told your child what a good boy he was after he cleaned up his room, you used the principle. When you sent your child to his room for fighting with his brother, you used the principle. When I gave Kim a cookie after she started to cry, I used the principle. In each of these examples, a particular behavior occurred first—cleaning up a room, fighting, and crying.In addition, there was a reaction to each behavior—the child was praised, sent to his room, or given a cookie. By these actions, we have influenced the previous behaviors and have helped to determine whether those behaviors will occur again in the future.76. What is the lecture mainly about?A. Children’s and environmental protection.B. Children’s behavior and fighting.C. Children’s behavior and our response.D. Children and principles.77. On what kind of principle is the lecture based?A. A principle in chemistry.B. A principle in behavioral psychology.C. A principle in physics.D. A principle in geology.78. Who do you think the audience at this lecture might be?A. Teachers.B. Doctors.C. Social workers.D. Parents.79. According to the lecture, why was the child sent to his room?A. As a kind of punishment.B. As a kind of reward.C. As an experiment on the principle.D. As an example of the principle.80. The principle states that a behavior is influenced or affected by how the ______ immediately responds to the behavior.A. abilityB. characterC. environmentD. knowledgePart Ⅳ. Translation (2×10 points)Directions: There are 10 sentences in this section. Please translate sentences 81～85 from Chinese into English, and translate sentences 86～90 from English into Chinese. Write your answer on the Answer Sheet.81. 就是在这间⼩屋⾥，他们勤奋地⼯作着。
六年级下册英语试题--小升初毕业考试模拟试卷(十二)外研社三起(解析版)
小升初毕业考试模拟试卷（十二）一、（北师大附小期末模拟）听录音，选出你所听到的内容1.听录音，选择你所听到的句子中含有的单词（）A. metreB. rightC. really2.听录音，请选出你听到的句子（）A. I'm Mike.B. My name's Mike.3.Do you often ________ at ________?4.听录音，选择你所听到的句子（）A. I've got lots of books.B. I've got some Chinese kites.C. I've got some dolls from China.5.听录音，选择你所听到的句子（）A. I like elephants.B. They're strong.C. I like monkeys.6.We should keep the rivers clean.7.8.听录音，选出你所听到的句子（）A. Do you like spring?B. Do you like autumn?C. Do you like summer?9.听问句，选择合适的答语（）A. He has sixty.B. She has sixty.C. I have sixty.10.听录音，用数字给下列句子排序________Do you know any great inventions in China?________The watch is a great invention too.________People can travel from one place to another.________Paul likes reading books in the garden.________You must do it yourself.________What are you going to invent?11.听录音，选择你所听到的句子（）A. She can take the bus there.B. She can take a walk with me.C. He can take a walk with me.12.13.14.15.听音，选出正确的图片（）A. B.16.We ________ our way in the ________.17.听音，选择正确的单词，补全句子Way bamboo roses stories forest（1）We went to the________.（2）Can you show me the________to the Xinhua Hotel?（3）My mother likes________.（4）First, cut the________.（5）We're going to listen to some________.18.听句子，选择句子中含有的信息（）A. cloudyB. windyC. snowy19.听录音，选出你所听到的句子（）A. It's a cat.B. It's a dog.20.听录音，根据你所听到的内容选择适当的应答语（）A. I eat breakfast at 8 o'clock.B. I get up at 7 o'clock.二、选出每组单词中画线部分读音不同的一项21.grassA. /e/B. /æ/C. /ɑː/22.选出下列单词中发音不同的单词（）A. wetB. beginC. will23.选出划线部分与其它单词发音不同的单词（）A. pupilB. puppyC. shutD. unhealthy24.选出画线部分读音不同的单词（）A. trunkB. thinkC. long25.选出下列单词发音不同的单词（）A. DecemberB. becomeC. same三、看图，根据句意和首字母提示填空26.抄写下列单词并写出其中文意思（1）wash ________ ________（2）before ________ ________（3）headache ________ ________（4）stomachache ________ ________27.________(百万) of people come to China to spend their holidays every year.28.根据图片和首字母的提示，写出单词补全短文。
2022年新高考模拟优化卷高考地理(12)(解析版)
新高考模拟优化卷（十二）一选择题.下图示意我国南方某处地层连续完整的自然黄土剖面。
某研究团队采集该处土壤样本,检测土壤化学元素组成与含量后发现黄土、过渡性黄土、古土壤样本与黄土高原风积黄土的常量元素特征高度相似，调查发现,黄土一般位于流水沉积层之上。
,检测发现该自然黄土剖面中古土壤层钠含量最钠元素易淋溶迁移1.表明该层形成时,低A.植被发育差B.盐渍化显著C.风力作用强D.地表湿度大【解析】淋溶作用是指土壤中可溶性或悬浮性化合物在渗漏水的作用下由土壤上部向下部迁移,或发生侧向迁移的种过程。
钠元素易溶于水,古土壤层中钠元素含量低,主要是因为在古土壤层形成时,该地降水多,地表湿度大,钠元素发生淋溶迁移,D项正确;该层形成时降水多,植被发育应较好，A项错误;盐渍化主要发生在降水少、淋溶作用弱、蒸发旺盛的时期,B项错误;风力作用强不会导致钠元素的淋溶迁移,C 项错误。
答案D2.该自然黄土剖面的地层分布反映了古气候A.相对稳定,寒冷干燥B.多次变化,湿润期长C.多次变化,干旱期长D.相对稳定,温暖湿润【解析】图中显示该地黄土层和古土壤层交替出现,根据材料可知,该地自然黄土剖面与黄土高原风积黄土的常量元素特征高度相似,黄土一般位于流水沉积层之上。
据此可推知,黄土层形成时期,以风力沉积作用为主,气候干旱;古土壤层形成时期,地表湿润,以流水沉积作用为主,可见该地气候多次变化;对比图中黄土层和古土壤层的形成年代发现,形成黄土层的时间更长,说明干旱期长。
答案C 下图为云南怒江中游福贡县(26°54′N,98°52′E)当地的传统民居—千脚落地房。
它是在陡坡或靠山处竖立几十根木桩,像千百只脚一样,支撑着整个房屋。
每年12月到次年1月为千脚落地房的最佳建房时间。
千脚落地房是对当地自然环境特征的适应,3.该地自然环境的特征主要是A.雨水丰富 B.闷热潮湿 C.岩层破碎 D.坡面较陡【解析】根据千脚落地房的建造位置及建造特点,可推知当地坡面较陡,为了保持房屋楼板的平正,所以采用了这样的方法,D项正确;“雨水丰富”,应该通过建造尖顶屋的方式排水，A项错误;“闷热潮湿”,只需架设高架,使房屋远离地面即可,没有必要设置“千脚”,B项错误;房屋“千脚落地”不能解决当地岩层破碎的问题,C项错误。
特岗教师招聘考试小学教育理论全真模拟预测试卷12
3. 国家用法律形式规定的，对一定年龄儿童免费实施的一定年限的学校教育，称为________。
4. ________是根据课程标准编制的、系统反映学科内容的教学用书。
5. 未成年学生享有的主要权利概括起来有：________，________。
6. 韦克斯勒智力量表包含了两个分量表，即 ________量表和________量表。
A.分析与综合 B.判断与推理
C.比较与抽象概括 D.系统化与具体化
15. 人们常说的“聪明早慧”或“大器晚成”是指个体身心发展的（ ）。
A.互补生 B.个别差异性
C.不平衡性 D.阶段性
16. （ ）的学生平时易受暗示，屈从于权威，按照他人的意见办事，不善于适应紧急情况。
8.【答案】D。解析：《学记》中又提到“道而弗牵，强而弗抑，开而弗达”的思想，阐明教师的作用在于引导、激励学生，其中“道而弗牵”即启发诱导学生但不要牵着学生走，“强而弗抑”即对学生提出比较高的要求但不要使学生灰心，“开而弗达”即指出解决问题的路径但不提供现成答案。因此答案为D。
9.【答案】D。解析：学校教学活动是有组织有计划进行的，因而学校体育也比一般锻炼更具系统性。
A.教育终身化 B.教育全民化
C.教育民主化 D.教育多元化
11. 下列哪一项不属于社会教育的途径？（ ）
A.社区 B.校外机构
C.大众传媒 D.课外兴趣小组
12. “道之所存，师之所有也”体现了教师职业的（ ）。
E.家庭
3. 培养学生干部是班主任建设班集体中的一项重要工作，班主任应做到（ ）。
A.严格要求 B.培养舆论
C.耐心引导 D.注意学生集体领导机构的经常变动
六年级下册英语试题--2020年名校小升初模拟试卷(十二)人教PEP版(含听力材料及解析)
2020年名校小升初英语模拟试卷（十二）一、听录音，选择与你所听到的内容1.听录音，选择你所听到的句子中含有的单词或短语（）A. on the leftB. on the rightC. right away2.听录音，选择相应的答语（）A. Nothing.B. I have a headache.C. I have a good rest.3.听录音，选出你所听到的句子（）A. Nice to meet you.B. Nice to meet you, too.4.根据听到的句子,选出正确的上句或下句（）A. They eat hay.B. They eat meat.C. They eat worms.5.The monkey has a short tail.6.—Whose ________ (coat/jacket) is it?— It's my brothers.7.选出你所听到的单词（）A. childrenB. chickenC. chocolate8.听对话，选出你所听到的单词（）A. get offB. get onC. get up9.听录音，选择听到的句子或对话（）A. —What can you see?—I can see a kite. It's small.B. —What can you see?—I can see a cat. It's small.10.听录音，选择你所听到的句子（）A. My house is very strong.B. I can't come in.C. It's hot.11.When is the girl's birthday?A. B.12.听一听，选出正确的图画（）A. B.13.听录音，给句子正确编号________Ginger is on the chair.________There are two plates on the desk.________Ginger is under the chair.________There is a desk and a chair in the room.________The bowls are on the floor.________Look! Ginger can jump.二、选择填空14.—is the picture?—It's near the door.A. WhatB. WhereC. Who15.— is your house?—It's next to the park.A. WhatB. WhereC. HowD. When16.— _______ the woman a doctor?—Yes, she_______.A. Is; isB. Am; amC. Are; are17.The 29th Olympic Games _________on August 8, 2008.A. take placeB. beginC. began18.My English name ___________ Anne.A. amB. is19.She's buying things _______your birthday.A. inB. atC. for20.It's ______now. Take off your ________!A. cold, coatB. hot, coat21. Amy like playing basketball?A. DoB. AreC. Does三、看图，选择正确的答案22.读句子选择与其相对应的图片A. B. C.D. E. F.（1）I'm Miss Fish. I can swim.（2）—What's in the box?—A doll.（3）—What can you see?—I can see a tree.（4）Tom can ride a bike.（5）I can skip.（6）—Is this your book?—Yes, it is.四、请根据提供的单词把下面的句子补充完整23.看图，选择相应的字母补全下列单词b p（1）________ig（2）________ag（3）________ig（4）________icture五、按要求完成句子24.I like quiet places. I don't like noisy places. (用but连接)25.There is a cat in my home. (变一般疑问句)26.Did you cook dinner yesterday evening? (作肯定回答)27.①Where ②my ③cap ④is________?28.you, are, How, there, going, (?)29.wrong, knew, was, he, he, (.) (连词成句)六、从下面方框里选出正确的句子完成对话30.从方框中选择适当的选项补全对话A. What's your father's job?B. They are my grandparents, my parents and me.C. How many people are there in your family?D. She is a doctor.E. Yes, she is.Ann: Hello, Jenny.Jenny: Hi! Ann.Ann: ________Jenny: Five. ________Ann: Is your grandma a teacher?Jenny: ________Ann: What's your mother's job?Jenny: ________Ann: ________Jenny: He is a football player.Ann: Cool!七、阅读短文，按要求答题31.阅读理解My name is Jim White. I'm eleven. That's my mum. She's a teacher.This is my dad. He's a teacher, too. He is an English teacher. Look! This is my little sister Amy. She is eight. I love my family.根据短文，判断正误。
2021年证券从业资格《证券市场基本法律法规》模拟试题及答案(卷十二)
2021年证券从业资格《证券市场基本法律法规》模拟试题及答案（卷十二）1.下列属于法律关系客体的是( )。
A. 自然人B. 国家C. 组织D. 精神成果【答案】D【解析】法律关系客体包括下列几类：( 1)物;( 2)人身、人格;( 3)精神成果;( 4) 行为。
其他三个选项属于法律关系的主体。
2.以发起设立方式设立股份有限公司的，发起人认足公司章程规定的出资后，由( )向公司登记机关报送公司章程以及法律、行政法规规定的其他文件，申请设立登记。
A.董事会B. 监事会C. 理事会D. 董事长【答案】A【解析】以发起设立方式设立股份有限公司的，发起人应当书面认足公司章程规定其认购的股份，并按照公司章程规定缴纳出资。
发起人认足公司章程规定的出资后，应当选举董事会和监事会，由董事会向公司登记机关报送公司章程以及法律、行政法规规定的其他文件，申请设立登记。
3.有限责任公司的权力机关是( )。
A. 股东会B.董事会C. 监事会D. 理事会【答案】A【解析】有限责任公司股东会由全体股东组成。
股东会是公司的权力机构，依法行使职权。
4.有限责任公司召开股东会议，应当于会议召开前( )日通知全体股东。
A.3B.7C.15D.30【答案】C【解析】有限责任公司召开股东会议，应当与会议召开前规定或者全体股东另有约定的除外。
15日通知全体股东。
但公司章程另有5.公司应当自作出合并、分立决议之日起( )日内通知债权人。
A.10B.15C.20D.30【答案】A6.( )是指依照《中华人民共和国公司法》和《中华人民共和国证券法》规定设立的经营证券业务的有限责任公司或者股份有限公司。
A.上市公司B.证券公司C.证券交易所D.股票公司【答案】B【解析】证券公司是指依照《中华人民共和国公司法》和《中华人民共和国证券法》规定设立的经营证券业务的有限责任公司或者股份有限公司。
7.股票发行采用代销方式，代销期限届满，向投资者出售的股票数量未达到拟公开发行股票数量( )的，为发行失败。
全国自考(西方政治制度)模拟试卷12(题后含答案及解析)
全国自考（西方政治制度）模拟试卷12(题后含答案及解析)题型有：1. 单项选择题 2. 多项选择题 3. 名词解释 4. 简答题 5. 论述题6. 案例分析题单项选择题1．在古罗马共和时代，当国家处于紧急状态时，元老院可以任命特殊官职，即( )A．保民官B．行政长官C．执政官D．独裁官正确答案：D解析：独裁官是处于紧急状态下由元老院任命的特殊官职，享有最高军事指挥权和民政权，但只能在一定受委托的范围内行使，权力有效期不超过6个月。
执政官是共和国的最高行政长官；行政长官是负责诉讼方面的最高长官；保民官本身不是公职人员，但对其他官员的命令、元老院的决定有否决权。
2．公元323年，废除四帝共治制，从而成为罗马世界唯一的统治者的人是，( )A．戴克里先B．奥古斯都C．君士坦丁D．凯撒正确答案：C解析：君士坦丁废除四帝共治体制，成为罗马唯一的统治者。
戴克里先是创立四帝共治体制的人，四帝共治体制里的四个统治者中，两名为奥古斯都，两名为凯撒。
3．孟德斯鸠提出分权学说的主要目的是( )A．实现政治自由B．实行政治民主C．确立人民主权D．约束君主权力正确答案：A4．人类历史上，选举制度的萌芽产生于( )A．原始社会B．奴隶制国家C．封建制国家D．资本主义国家正确答案：A解析：原始公社的选举制度是人类社会选举制度的萌芽，是一种古代自然形成的民主制。
5．直到2009年，英国的民事、刑事案件的最高上诉审判机关一直都是( )A．最高法院B．上诉法院C．上议院D．司法委员会正确答案：C6．历史上实行过“复票制”的典型国家是( )A．英国B．美国C．德国D．加拿大正确答案：A解析：“复票制”是一种不平等选举现象，即在一次选举活动中，部分选民享有多次投票权。
英国的下议院议员的选举曾长期实行“复票制”。
7．20世纪70年代以后，英国、法国、美国等先后将公民选举权的年龄降低到( )A．21岁B．20岁C．19岁D．18岁正确答案：D8．在法国，负责违宪审查的机关是( )A．最高法院B．宪法法院C．宪法委员会D．参议院正确答案：C9．西方利益集团中，美国的全国有色人种协进会属于( )A．政治性利益集团B．“结社性”利益集团C．“体制化”利益集团D．特殊利益集团正确答案：A解析：西方国家的利益集团有不同分类，政治性利益集团是以追求和维护其成员的政治利益为目标建立起来的团体。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
一．辅导材料：
模拟卷：模拟卷十二（语法与词汇）
二．题目解析：
模拟卷十二：P155
词汇与语法
36. 【考点】时态
【答案】B
【解析】this time yesterday 中yesterday是一般过去时的时间标志，this time表示一个时间点，用进行时，综上所述用过去进行时
37. 【考点】固定搭配
【答案】A
【解析】prefer doing to doing prefer后跟动名词，to是介词后跟动名词
38. 【考点】感叹句
【答案】C
【解析】advice是不可数名词，useful是修饰advice这个不可数名词的，所以应用what 39. 【考点】复合形容词
【答案】A
【解析】有“-”不加s，复合形容词后有名词的情况下，前面要用“-”连接成为复合形容词修饰名词
40. 【考点】词义辨析
【答案】B
【解析】从句意判断：戏剧很精彩。
你应该去看一看。
表示应该，用should
41. 【考点】不定代词
【答案】D
【解析】在题目中出现了four这个数词，表示是三者以上，从选项中判断：either表示二者选一，neither表示两者都不，both表示两者都，none表示三者或三者以上都不，所以只有none符合
42. 【考点】名词
【答案】A
【解析】Japanese单复数同行，German比较特殊，复数需要在后面加s
43. 【考点】名词
【答案】D
【解析】snow是不可数名词，应用much修饰
44. 【考点】日常交际用语
【答案】B
【解析】Excuse me表示打扰一下，常用于问路，打断下别人时所用的礼貌用语
45. 【考点】反义疑问句
【答案】C
智康VIP Henry 竺翔宇编制Page 2 of 3
【解析】Let’s…的祈使句，反义疑问句都用shall we
46. 【考点】特殊疑问词
【答案】A
【解析】选择式的特殊疑问句，一般都用which引导
47. 【考点】连词
【解析】主句是现在完成时，从句是过去时，就应该立即想到since引导这一时态结构48. 【考点】冠词
【答案】D
【解析】hour是以元音音素开头，用不定冠词an，后面homework因为指是Tom的作业，所以应该用定冠词the
49. 【考点】情态动词
【答案】D
【解析】从句意判断：你应该现在出发了，否则你将赶不上火车。
50. 【考点】不定代词
【答案】A
【解析】双胞胎是两个，each表示两个中的每一个，all表示三者或三者以上，every one表示三者或三者以上的每一个，both表示两者都，因为双胞胎是二者，所以从each和both中选择，从句意判断：双胞胎进来，我给了他们每个人一盒巧克力
51. 【考点】固定搭配
【答案】B
【解析】Gate Four=the fourth lesson
52. 【考点】形容词
【答案】B
【解析】taste系动词，后跟形容词，从句意判断：妈妈，火鸡尝起来不错（nice adj.），我想再要一些
53. 【考点】词义辨析
【答案】C
【解析】tell 后跟story、joke、truth、sb、lie，用…语言说，应用介词in
54. 【考点】词义辨析
【答案】C
【解析】enter=go into take part in+活动jion成为…一员，加入组织
The English contest是活动，所以用take part in
55. 【考点】词义辨析
【答案】D
【解析】从句意判断：我们喜欢去剧院看戏剧
56. 【考点】词义辨析
【答案】C
【解析】从句意判断：苍蝇是一种害虫
57. 【考点】词义辨析
智康VIP Henry 竺翔宇编制Page 3 of 3
【答案】B
【解析】listen表示有意识或无意识地听hear强调听的结果从句意判断：我留意着听，但我一个字都没听见前者强调有意识地听，后者强调听的结果
58. 【考点】词义辨析
【答案】A
【解析】match搭配fix小修小补suit颜色、款式合适fit大小、尺寸合适从句意判断：你的粉红色汗衫和你的粉色鞋子搭配
59. 【考点】词义辨析
【解析】从句意判断：我帮助一个老人上船
60. 【考点】词义辨析
【答案】A
【解析】我们带着很大的兴趣参观了博物馆
61. 【考点】词义辨析
【答案】D
【解析】从句意判断：到了睡觉的时候。
请关掉录音机。
62. 【考点】词义辨析
【答案】C
【解析】fun可供娱乐的，有趣的funny滑稽的从句意判断：在河里游泳是有趣的
63.【考点】词义辨析
【答案】B
【解析】room除了有房间的意思外，还有空间的意思。
这里表示车里有足够的空间
64. 【考点】词义辨析
【答案】A
【解析】bring是从别处带到说话者的位置take 是从说话者的位置带到别处
65. 【考点】词义辨析
【答案】C
【解析】miss想念，错过，成分缺失从句意判断：海伦现在正在英国学习，她经常想念他的父母和朋友。