2018届江苏省扬州、泰州、淮安、南通、徐州、宿迁、连云港市高三第三次调研测试数学试题图片版
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2018届高三年级第三次模拟考试物理本试卷共8页,包含选择题(第1题~第9题,共9题)、非选择题(第10题~第15题,共6题)两部分.本卷满分为120分,考试时间为100分钟.一、单项选择题:本题共5小题,每小题3分,共计15分.每小题只有一个....选项符合题意.1. 春秋末年齐国人的著作《考工记》中有“马力既竭,辀犹能一取焉”,意思是马对车不施加拉力了,车还能继续向前运动.这是关于惯性的最早记述.下列关于惯性的说法中正确的是()A. 车只在运动时才具有惯性B. 撤去拉力后车的惯性大小不变C. 拉力可以改变车的惯性D. 车运动越快惯性越大2. 如图所示,带有孔的小球A套在粗糙的倾斜直杆上,与正下方的小球B通过轻绳连接,处于静止状态.给小球B施加水平力F使其缓慢上升,直到小球A刚要滑动.在此过程中()A. 水平力F的大小不变B. 杆对小球A的支持力不变C. 轻绳对小球B的拉力先变大后变小D. 杆对小球A的摩擦力先变小后变大3. 磁流体发电机原理如图所示,等离子体高速喷射到加有强磁场的管道内,正、负离子在洛伦兹力作用下分别向A、B两金属板偏转,形成直流电源对外供电.则()A. 仅减小两板间的距离,发电机的电动势将增大B. 仅增强磁感应强度,发电机的电动势将减小C. 仅增加负载的阻值,发电机的输出功率将增大D. 仅增大磁流体的喷射速度,发电机的总功率将增大4. 如图所示,不可伸长的细线一端固定,另一端系一小球,小球从与悬点等高处由静止释放后做圆周运动,不计空气阻力,则小球从释放位置运动到最低点的过程中()A. 水平方向加速度不断增大B. 竖直方向加速度不断增大C. 重力做功的瞬时功率先增大后减小D. 拉力做功的瞬时功率先增大后减小5. 如图所示,水平虚线MN上方有匀强磁场,磁场方向垂直于纸面向里.大量带正电的相同粒子,以相同的速率沿位于纸面内水平向右到竖直向上90°范围内的各个方向,由小孔O射入磁场区域,做半径为R的圆周运动.不计粒子重力和粒子间相互作用.下列图中阴影部分表示带电粒子可能经过的区域,其中正确的是()二、多项选择题:本题共4小题,每小题4分,共计16分,每小题有多个选项符合题意.全部选对的得4分,选对但不全的得2分,错选或不答的得0分.6. 某卫星绕地球做圆周运动周期等于地球自转周期,其轨道平面与赤道平面成55°角,则该卫星()A. 离地面高度与地球同步卫星相同B. 在轨运行速度等于第一宇宙速度C. 加速度大于近地卫星的加速度D. 每天两次经过赤道上同一点的正上方7. 健身车上装有金属电磁阻尼飞轮,飞轮附近固定一电磁铁,示意图如图所示,人在健身时带动飞轮转动.则()A. 飞轮转速越大,阻尼越大B. 电磁铁所接电压越大,阻尼越大C. 飞轮材料电阻率越大,阻尼越大D. 飞轮材料密度越大,阻尼越大8. 某区域的电场线分布如图所示,一电场线上有P、Q两点,一电子以速度v0从P点向Q点运动,经过时间t1到达Q点时速度大小为v1.一正电子(带正电,质量、电荷量均与电子相同)以大小为v0的速度从Q点向P点运动,经过时间t2到达P点时速度大小为v2,不计正、负电子受到的重力.则()A. v1<v2B. v1=v2C. t1>t2D. t1=t29. 如图所示,斜面体静置在水平面上,斜面底端固定一挡板,轻弹簧一端连接在挡板上,弹簧原长时自由端在B点.一小物块紧靠弹簧放置,在外力作用下将弹簧压缩至A点.物块由静止释放后,恰能沿粗糙斜面上滑至最高点C,然后下滑,最终停在斜面上,斜面体始终保持静止.则()A. 物块最终会停在A、B之间的某位置B. 物块上滑过程速度最大的位置与下滑过程速度最大的位置相同C. 整个运动过程中产生的内能小于弹簧的最大弹性势能D. 物块从A上滑到C过程中,地面对斜面体的摩擦力先减小再增大,然后不变三、简答题:本题分必做题(第10、11题)和选做题(第12题)两部分,共计42分.【必做题】10. (8分)用图甲所示的实验装置验证机械能守恒定律.气垫导轨上A处安装了一个光电门,滑块上固定一遮光条,滑块用绕过气垫导轨左端定滑轮的细线与钩码相连,每次滑块都从同一位置由静止释放,释放时遮光条位于气垫导轨上B位置的上方.(1) 某同学用游标卡尺测量遮光条的宽度d,如图乙所示,则d=________mm.(2) 实验中,接通气源,滑块静止释放后,由数字计时器读出遮光条通过光电门的时间为t,测得滑块质量为M,钩码质量为m,A、B间的距离为L.在实验误差允许范围内,钩码减小的重力势能mgL与________(用直接测量的物理量符号表示)相等,则机械能守恒.(3) 下列不必要的一项实验要求是________(请填写选项前对应的字母).A. 滑块必须由静止释放B. 应使滑块的质量远大于钩码的质量C. 已知当地重力加速度D. 应使细线与气垫导轨平行(4) 分析实验数据后发现,系统增加的动能明显大于钩码减小的重力势能,原因是_______________________________________________________________________________.11. (10分)氧化膜电阻是用真空镀膜等工艺将金属氧化淀积在绝缘基体表面上形成的薄膜电阻,常用色环来标识阻值,如图甲所示.某学习小组为了测量色环不清晰的氧化膜电阻的阻值.准备了下列器材:A.待测氧化膜电阻R x;B.B. 电流表A1(量程150μA,内阻约40Ω);C. 电流表A2(量程1mA,内阻约10Ω);D. 电压表V(量程3V,内阻约10kΩ);E. 滑动变阻器R(阻值0~20Ω,允许最大电流1A);F. 直流电源E(输出电压5V,内阻不计);G. 多用电表;H. 开关S、导线若干.(1) 用多用电表粗测电阻时,将选择开关旋至×100挡,调零后将红、黑表笔与氧化膜电阻的两端相接,发现指针偏转的角度很小,再将选择开关旋至________(选填“×1”“×10”或“×lk”)挡,正确操作后,多用电表示数如图乙所示.(2) 用伏安法测量该电阻阻值,电流表应选用________(填写器材代号).请在图丙中用笔画线代替导线,完成实物电路的连接.(3) 正确连接电路,闭合开关,调节滑动变阻器滑片位置,发现电压表指针偏转而电流表指针始终不偏转.在不断开电路的情况下,使用多用电表直流电压挡检查电路故障,将多用电表的________(选填“红”或“黑”)表笔与电流表“+”接线柱保持接触,另一表笔依次与氧化膜电阻的左、右接线柱以及滑动变阻器的左上接线柱接触,发现多用电表指针均发生较大角度的偏转,说明电路在何处发生何种故障?________________________________________________________________________ ________________________________________________________________________.12. 【选做题】本题包括A、B、C三小题,请选定其中....若多做,则按.....两小题...,.并作答A、B两小题评分.A. [选修3-3](12分)(1) 下列说法中正确的有________.A. 只有在温度较高时,香水瓶盖打开后才能闻到香水味B. 冷水中的某些分子的速率可能大于热水中的某些分子的速率C. 将沸腾的高浓度明矾溶液倒入玻璃杯中冷却后形成的八面体结晶属于多品体D. 表面张力是由液体表面层分子间的作用力产生的,其方向与液面平行(2) 1912年,英国物理学家威尔逊发明了观察带电粒子运动径迹的云室,结构如图所示,在一个圆筒状容器中加入少量酒精,使云室内充满酒精的饱和蒸汽.迅速向下拉动活塞,室内气体温度________(选填“升高”“不变”或“降低”),酒精的饱和汽压________(选填“升高”“不变”或“降低”).(3) 如图所示,一导热性能良好、内壁光滑的汽缸竖直放置,用截面积为S的轻活塞在汽缸内封闭着体积为V0的气体,此时气体密度为ρ0.在活塞上加一竖直向下的推力,使活塞缓慢下降到某位置O,此时推力大小F=2p0S.已知封闭气体的摩尔质量为M,大气压强为p0,阿伏伽德罗常数为N A,环境温度不变.求活塞下降到位置O时:①封闭气体的体积V;②封闭气体单位体积内的分子数n.B. [选修3-4](12分)(1) 下列说法中正确的有________.A. 汽车减震系统的固有周期远大于外界冲击力的周期B. 照相机镜头涂有增透膜,各种颜色的可见光能几乎全部透过镜头C. 观看3D电影时,观众戴的偏振眼镜两个镜片的透振方向相平行D. 车站行李安检机采用X射线,X射线穿透能力比紫外线强(2) 自动驾驶汽车配置了超声波、激光、无线电波雷达和光学相机组成的传感探测系统,当汽车与前方车辆距离减小到安全距离时,系统会执行减速指令.若汽车静止时发出的超声波频率为4.0×104Hz,空气中声速为340m/s,该超声波的波长为________m.汽车行驶时接收到被前方汽车反射的超声波频率________(选填“大于”“等于”或“小于”)汽车发出的频率.(3) 如图所示,真空中有一个半径为R的均匀透明介质球,一细束激光沿直线AB传播,在介质球表面的B点经折射进入球,入射角θ1=60°,在球面上另一点又一次经折射后进人真空,此时激光的传播方向相对于光线AB偏转了60°.已知真空中的光速为c,求:①介质球的折射率n;②激光在介质球中传播的时间t.C. [选修3-5](12分)(1) 中微子是一种不带电、质量很小的粒子.早在1942年我国物理学家王淦昌首先提出证实中微子存在的实验方案.静止的铍核(74Be)可能从很靠近它的核外电子中俘获一个电子(动能忽略不计)形成一个新核并放出中微子,新核处于激发态,放出γ光子后回到基态.通过测量新核和γ光子的能量,可间接证明中微子的存在.则________.A. 产生的新核是锂核(73Li)B. 反应过程吸收能量C. 中微子的动最与处于激发态新核的动量大小相等D. 中微子的动能与处于激发态新核的动能相等(2) 我国计划在南京建立国际领先的大科学工程装置——“强流高亮度超导质子源”.超导直线加速器将质子加速至0.9倍光速以上,加速过程中,质子的能量增加,则质子的质量________(选填“增加”“不变”或“减小”),其物质波波长________(选填“增加”“不变”或“减小”).(3) 如图所示,在光滑水平冰面上,一蹲在滑板上的小孩推着冰车一起以速度v0=1.0m/s 向左匀速运动.某时刻小孩将冰车以相对冰面的速度v1=7.0m/s向左推出,冰车与竖直墙发生碰撞后原速率弹回.已知冰车的质量为m1=10kg,小孩与滑板的总质量为m2=30kg,小孩与滑板始终无相对运动.取g=10m/s2.①求冰车与竖直墙发生碰撞过程中,墙对冰车的冲量大小l;②通过计算判断,冰车能否追上小孩?四、计算题:本题共3小题,共计47分.解答时请写出必要的文字说明、方程式和重要的演算步骤.只写出最后答案的不能得分.有数值计算的题,答案中必须明确写出数值和单位.13. (15分)如图所示,水平导体棒ab质量为m、长为L、电阻为R0,其两个端点分别搭接在竖直平行放置的两光滑金属圆环上,两圆环半径均为r、电阻不计.阻值为R的电阻用导线与圆环相连接,理想交流电压表V接在电阻两端.整个空间有磁感应强度大小为B、方向竖直向下的匀强磁场,导体棒ab在外力F作用下以角速度ω绕两圆环的中心轴OO′匀速转动,产生正弦交流电.已知重力加速度为g.求:(1) 导体棒ab沿环运动过程中受到的安培力最大值F m;(2) 电压表的示数U和导体棒从环的最低点运动到与环心等高处过程中通过电阻R的电荷量q;(3) 导体棒ab从环的最低点运动半周到最高点的过程中外力F做的功W.14. (16分)如图所示,两根不可伸长的细绳A 、B 端分别固定在水平天花板上,O 端系有一质量m =3kg 的物体,ABO 组成一边长为L =5 3 m 的正三角形.物体受到方向水平向左的风力作用,绳BO 能承受的最大拉力F m =20N ,绳AO 不会被拉断,取g =10m /s 2.(1) 水平风力F 1=5N 时,物体处于静止状态,求绳BO 中的拉力大小F B ;(2) 水平风力为F 2时,绳BO 刚好被拉断,求F 2和绳BO 拉断时物体的加速度大小a ; (3) 在(2)的情况下,求物体运动过程中的最大速度v m 和物体运动到最高点时与初始位置的高度差h.15. (16分)如图甲所示,真空室中电极K 发出的电子(初速不计)经电场加速后,由小孔P 沿两水平金属板M 、N 的中心线射入板间,加速电压为U 0,M 、N 板长为L ,两板相距3L4.加在M 、N 两板间电压u 随时间t 变化关系为u MN =9U 04sin⎝⎛⎭⎫2πT t ,如图乙所示.把两板间的电场看成匀强电场,忽略板外电场.在每个电子通过电场区域的极短时间内,电场可视作恒定.两板右侧放一记录圆筒,筒左侧边缘与极板右端相距3L2,筒绕其竖直轴匀速转动,周期为T ,筒的周长为s ,筒上坐标纸的高为15L4,以t =0时电子打到坐标纸上的点作为xOy 坐标系的原点,竖直向上为y 轴正方向.已知电子电荷量为e ,质量为m ,重力忽略不计.(1) 求穿过水平金属板的电子在板间运动的时间t ;(2) 通过计算,在示意图丙中画出电子打到坐标纸上的点形成的图线;(3) 为使从N 板右端下边缘飞出的电子打不到圆筒坐标纸上,在M 、N 右侧和圆筒左侧区域加一垂直于纸面的匀强磁场,磁感应强度B 应满足什么条件?2018届高三第三次调研测试物理参考答案及评分标准一、单项选择题:本题共5小题,每小题3分,共计15分.每小题只有一个选项符合题意.1.B 2.D 3.D 4.C 5.B二、多项选择题:本题共4小题,每小题4分,共计16分.每小题有多个选项符合题意.全部选对的得4分,选对但不全的得2分,错选或不答的得O 分. 6.AD 7.AB 8.BC 9.ACD三、简答题:本题共3小题,共计42分.请将解答填写在答题卡相应的位置. 10.(8分)(1)2.70(2分)(2)22()2m M d t +(2分)(3)B (2分)(4)气垫导轨右端偏高(2分) 11.(10分)(1)×1k (2分)(2)A 1(2分) 如图所示(2分)(3)黑(2分) 电流表“+”与氧化膜电阻的左接线柱间的连接发生断路(2分) 12.A (选修模块3-3)(12分)(1)BD (3分,漏选得1分) (2)降低(2分) 降低(2分)(3)①由玻意耳定律有 000()Fp V p V S=+ (1分) 解得 013V V =(1分) ②密闭气体的摩尔数 000V n M ρ=(1分) 单位体积内的分子数 0A n Nn V=(1分)解得 03AN n Mρ=(1分)B (选修模块3- 4)(12分)(1)AD (3分,漏选得1分) (2)8.5×10-3(2分) 大于(2分) (3)①激光的光路图如图所示 由几何关系可知折射角 θ2=30°由折射定律有 12s i n s i n n θθ=(1分) 解得1.73n ==(1分)②激光在介质中传播的距离s = (1分) 传播的速度 c v n= (1分) 则 3s R t v c==(1分)C (选修模块3-5)(12分)(1)AC (3分,漏选得1分) (2)增加(2分) 减小(2分) (3)①冰车在碰撞过程由动量定理有 1111()I m v m v -=-- (1分)解得 140N s I =⋅ (1分)②设小孩推出冰车后与滑板共同运动的速度为v ,由动量守恒定律有第12B(3)题图120112()m m v m v m v +=+ (1分) 解得 1.0m/s v =- (1分) 由于1v v <,故冰车能追上小孩(1分)四、计算题:本题共3小题,共计47分.解答时请写出必要的文字说明、方程式和重要的演算步骤,只写出最后答案的不能得分,有数值计算的题,答案中必须明确写出数值和单位. 13.(15分)解:(1)导体棒ab 产生的最大感应电动势m E BLv BL r ω== (1分)受到的安培力最大值 0m m E LBF R R =+(1分)解得 220m B L rF R R ω=+(2分) (2)通过电阻R 的电流I =(1分) 电压表的示数 U IR = (1分)解得0U =(1分)导体棒从环的最低点运动到与环心等高处过程产生的平均感应电动势E t∆Φ=∆(1分) 通过电阻R 的电荷量 0Eq I t t R R =⋅∆=⋅∆+(1分)磁通量的变化量 B L r ∆Φ=解得 0B L rq R R =+(1分) (3)此过程安培力做的功 20()W I R R πω=-+⋅安 (1分) 由动能定理有 20W W mg r +-⋅=安(2分)解得 222022()B L r W m g r R R πω=++(2分)14.(16分)解:(1)设此时绳AO 中的拉力大小F A ,由平衡条件有1cos60cos600A B F F F +︒-︒= (1分) sin60sin600A B F F mg ︒+︒-=(1分)代入数据解得 15N B F =(2分)(2)设绳BO 拉断时,物体仍在原来位置,则拉断前瞬间水平和竖直方向的分力分别为 cos6010N mx m F F =︒= (1分)sin 60my m F F =︒=(1分)由于my F mg =,说明物体仍在原来位置,此时绳AO 中的拉力大小为0. 水平方向由平衡条件有210N mx F F ==(1分)绳BO 被拉断后,物体做圆周运动,拉断时加速度方向沿圆切线方向,则2sin 60cos60F mg ma ︒+︒=(2分)解得 210m /s a =(1分)(3)设绳AO 向左摆到与水平方向的夹角为θ时,物体运动的速度最大,则 2sin cos 0F mg θθ-= (1分)221(cos 60cos )(sin sin 60)2m F L L mg L L mv θθ︒++-︒=(1分) 解得 10m /s m v =(1分)设绳AO 向左摆到与水平方向的夹角为α时,物体到达最高点,则2(cos60cos )(sin sin60)0F L L mg L L αα︒++-︒=(1分) sin 60sin h L L α=︒-(1分) 解得 7.5m h = (1分) 15.(16分)解:(1)设电子经加速电压加速后的速度为v 0,则20012eU mv =,0L v t = (2分)解得t L =(2分) (2)电子在板间运动的加速度 34eua L m =⋅(1分)能飞出的电子打到坐标纸上的偏距 201322at y at L v =+⋅解得 0423sin()3Lu y L t U Tπ==(1分)设当M 、N 两板间电压为U 时,电子从水平金属板右边缘飞出,则23182L at = 解得 098U U =(1分)故在一个周期中的5~1212T T 、711~1212T T 时间内,电子打在M 、N 板上,画出电子打到坐标纸上的点形成的图线如图所示(正弦曲线的一部分).(3分)第15题答图(3)设从N 板右端下边缘飞出时的电子速度与水平方向的夹角为θ,速度大小为v ,则tan atv θ=, 0cos v v θ=解得 3t a n4θ=,54v =(2分)①当匀强磁场方向垂直于纸面向外时,电子打不到圆筒坐标纸上,磁场的磁感应强度为B 1,电子做圆周运动的轨道半径为r 1,则113sin 2L r r θ+=,211v evB m r =解得 11516r L =,1B =(1分)应满足的条件B > (1分)②当匀强磁场方向垂直于纸面向里时,电子打不到圆筒坐标纸上,磁场的磁感应强度为B 2,电子做圆周运动的轨道半径为r 2,则2222223315(sin )(cos )288L L L r r r θθ+++-=,222v evB m r =解得 2152r L =,2B = (1分) 应满足的条件B >(1分)第15(3)题答图①O 2第15(3)题答图②。
2018年江苏省扬州市、泰州市、淮安市、南通市、徐州市、宿迁市、连云港市高考物理三模试卷一、单项选择题:本题共5小题,每小题3分,共计15分.每小题只有一个选项符合题意.1.(3.00分)春秋末年齐国人的著作《考工记》中有“马力既竭,辀犹能一取焉”,意思是马对车不施加拉力了,车还能继续向前运动。
这是关于惯性的最早记述。
下列关于惯性的说法中正确的是()A.车只在运动时才具有惯性B.撤去拉力后车的惯性大小不变C.拉力可以改变车的惯性D.车运动越快惯性越大2.(3.00分)如图所示,带有孔的小球A套在粗糙倾斜直杆上,与正下方的小球B通过轻绳连接,处于静止状态,给小球B施加水平力F使其缓慢上升,直到小球A刚要滑动。
在此过程中()A.水平力F的大小不变B.杆对小球A的支持力不变C.轻绳对小球B的拉力先变大后变小D.杆对小球A的摩擦力先变小后变大3.(3.00分)磁流体发电机原理如图所示,等离子体高速喷射到加有强磁场的管道内,正、负离子在洛伦兹力作用下分别向A、B两金属板偏转,形成直流电源对外供电。
则()A.仅减小两板间的距离,发电机的电动势将增大B.仅增强磁感应强度,发电机的电动势将减小C.仅增加负载的阻值,发电机的输出功率将增大D.仅增大磁流体的喷射速度,发电机的总功率将增大4.(3.00分)如图所示,不可伸长的细线一端固定,另一端系一小球,小球从与悬点等高处由静止释放后做圆周运动,不计空气阻力,则小球从释放位置运动到最低点的过程中()A.水平方向加速度不断增大B.竖直方向加速度不断增大C.重力做功的瞬时功率先增大后减小D.拉力做功的瞬时功率先增大后减小5.(3.00分)如图所示,水平虚线MN上方有匀强磁场,磁场方向垂直于纸面向里。
大量带正电的相同粒子,以相同的速率沿位于纸面内水平向右到竖直向上90°范围内的各个方向,由小孔O射入磁场区域,做半径为R的圆周运动。
不计粒子重力和粒子间相互作用。
下列图中阴影部分表示带电粒子可能经过的区域,其中正确的是()A.B. C.D.二、多项选择题:本题共4小题,每小题4分,共计16分,每小题有多个选项符合题意.全部选对的得4分,选对但不全的得2分,错选或不答的得0分.6.(4.00分)某卫星绕地球做圆周运动周期等于地球自转周期,其轨道平面与赤道平面成55°角,则该卫星()A.离地面高度与地球同步卫星相同B.在轨运行速度等于第一宇宙速度C.加速度大于近地卫星的加速度D.每天两次经过赤道上同一点的正上方7.(4.00分)健身车上装有金属电磁阻尼飞轮,飞轮附近固定一电磁铁,示意图如图所示,人在健身时带动飞轮转动。
江苏省苏北四市2018届高三第三次调研测试数 学 2018年3月31日必做题部分(本试卷满分160分,考试时间120分钟)一、填空题:本大题共14小题,每小题5分,共70分. 1. 若iia -+1(i 是虚数单位)是是实数,则实数a 的值是 . 2. 已知集合{}{},02,12<-=>=x x x B x x A 则=⋃B A .3. 为了解某校教师使用多媒体进行教学的情况,从该校200名授课教师中随机抽取20名教师,调查了他们上学期使用多媒体进行教学的次数,结果用茎叶图表示如下:据此可估计该校上学期200名教师中,使用多媒体进行教学次数在[]30,15内的人数为 .4. 在如图所示的流程图中,输出的结果是 .5. 若以连续掷两次骰子得到的点数n m ,分别为点P 的横、纵坐标,则点P 在圆1622=+y x 内的概率为 .6. 在约束条件⎪⎩⎪⎨⎧≥-≤≤≤≤122010x y y x 下,则22)1(y x +-的最小值为 .7. 一个匀速旋转的摩天轮每12分钟旋转一周,最低点距地面2米,最高点距地面18米,P 是摩天轮轮周上的一个定点,从P 在摩天轮最低点好似开始计时,则16分钟后P 点距地面的高度为 .8. 已知集合{}{},0),(,1),(222>≤+=≤+=r r y x y x B y x y x A 若点A y x ∈),(是点B y x ∈),(的必要条件,则r 的最大值是 .9. 已知点),2,0(A 抛物线)0(22>=p px y 的焦点为F ,准线为l ,线段FA 交抛物线与点B ,过B 作l 的垂线,垂足为M ,若,MF AM ⊥则=p .10. 若函数,0,20,2)(⎪⎩⎪⎨⎧<-<=-x x x f xx 则函数))((x f f y =的值域是 . 11. 如图所示,在直三棱柱111C B A ABC -中,AC BC ⊥,14,2AC BC CC ===,若用平行于三棱柱111C B A ABC -的某一侧面的平面去截此三棱柱,使得到的两个几何体能够拼接成长方体,则长方体表面积的最小值为 .12. 已知椭圆B A y x ,,12422=+是其左、右顶点,动点M 满足AB MB ⊥,连接AM 交椭圆于点P ,在x 轴上有异于点B A ,的定点Q ,以MP为直径的圆B1经过直线MQ BP ,的交点,则点Q 的坐标为 .13. 在ABC ∆中,过中线AD 中点E 任作一直线分别交AC AB ,于N M ,两点,设)0(,≠==xy AC y AN AB x AM ,则y x +4的最小值是 .14. 如图是一个数表,第1行依次写着从小到大的正整数,然后把每行相邻的两个数的和写在这两个数正中间的下方,得到下一行,数表从上到下与从左到右均为无限项,则这个数表中的第13行第10个数为 .二、解答题:本大题共6小题,共90分,解答应写出文字说明,证明过程或演算步骤. 15.(本小题满分14分)如图,在平面直角坐标系xoy 中,点A 在x 轴正半轴上,直线AB 的倾斜角为43π,2=OB ,设θ=∠AOB ,)43,2(ππθ∈.(1)用θ表示;OA (2)求OB OA ⋅的最小值.如图,已知四面ABCD 的四个面均为锐角三角形,E 、F 、G 、H 分别为边DA CD BC AB ,,,上的点,//BD 平面,EFGH 且FG EF =.(1)求证://HG 平面ABC ;(2)请在面ABD 内过点E 作一条线段垂直于AC ,并给出证明.17. (本小题满分14分)如图,已知位于y 轴左侧的圆C 与y 轴相切与点)1,0(,且被x 轴分成的两段弧之长比为1:2,过点),0(t H 的直线l 与圆C 相交于M 、N 两点,且以MN 为直径的圆恰好经过坐标原点O . (1)求圆C 的方程;(2)当1=t 时,求出直线l 的方程; (3)求直线OM 的斜率k 的取值范围.心理学家研究某位学生的学习情况发现:若这位学生刚学完的知识存留量记为1,则x 天后的存留量441+=x y ;若在)4(>t t 天时进行第一次复习,则此时知识存留量比未复习情况下增加一倍(复习时间忽略不计),其后存储量2y 随时间变化的曲线恰为直线的一部分,其斜率为),0()4(2<+a t a存留量随时间变化的曲线如图所示.当进行第一次复习后的存留量与不复习的存留量相差最大时,则称此时此刻为“二次复习最佳时机点”. (1)若5,1=-=t a ,求“二次最佳时机点”;(2)若出现了“二次复习最佳时机点”,求a 的取值范围.(天)已知各项均为正数的等差数列{}n a 的公差d 不等于0,设k a a a ,3,1是公比q 的等比数列{}n b 的前三项.(1)若2,71==a k .(ⅰ)求数列{}n n b a 的前n 项和n T ;(ⅱ)将数列{}n a 中与{}n b 相同的项去掉,剩下的项依次构成新的数列{}n c ,设其前n 项和为n S ,求),2(23211212*----∈≥⋅+-N n n S n n n n 的值;(2)若存在*∈>N m k m ,使得m k a a a a ,,,31成等比数列,求证:k 为奇数.已知波函数R a ax x x f x x x x f x ax x f ∈+=++=+=,221)(,ln 953461)(,ln )(22212. (1) 求证:函数)(x f 在点))(,(e f e 处的切线恒过定点,并求出定点坐标; (2) 若)()(2x f x f <在区间),1(+∞上恒成立,求a 的取值范围; (3) 当32=a 时,求证:在区间),1(+∞上,满足)()()(21x f x g x f <<恒成立的函数)(x g 有无穷多个.江苏省苏北四市2018届高三第三次调研考试试卷 ⅡB.选修4—2:矩阵与变换 已知矩阵⎢⎣⎡=c M 1 ⎥⎦⎤2b 有特征值41=λ及对应的一个特征向量⎥⎦⎤⎢⎣⎡=321e . (1)求矩阵M ;(2)求曲线148522=++y xy x 在M 的作用下的新曲线方程.C.选修4—4:坐标系与参数方程已知极坐标系的极点与直角坐标系的原点重合,极轴与x 轴的正半轴重合.若直线l 的极坐标方程为23)4sin(=-πθρ.(1)把直线l 的极坐标方程化为直角坐标系方程;(2)已知P 为椭圆1916:22=+y x C 上一点,求P 到直线l 的距离的最大值.22.(本小题满分10分)如图,已知三棱柱111C B A ABC -的侧面与底面垂直,,,11AC AB AC AB AA ⊥===P N M ,,分别是111,,B A BC CC 的中点.(1)求证:AM PN ⊥;(2)若直线MB 与平面PMN 所成的角为θ,求θsin 的值. 23.(本小题满分10分) 已知数列{}n a 中,对于任意n n n a a a N n 34,3-=∈*.(1)求证:若,1>n a 则11>+n a ; (2)若存在正整数m ,使得1=m a ,求证: (ⅰ)1≤m a ; (ⅱ)1132cos -=m k a π(其中Z k ∈)(参考公式:αααcos 3cos 43cos 3-=).。
徐州、连云港、宿迁三市2018届高三第三次模拟数学Ⅰ参考公式:棱柱的体积公式:错误!未找到引用源。
其中错误!未找到引用源。
是棱柱的底面积,错误!未找到引用源。
是高. 一、填空题:本大题共14题,每小题5分,共70分.请把答案填写在答题纸相应位置上......... 1.已知复数错误!未找到引用源。
是虚数单位),则错误!未找到引用源。
的模为 ▲ .2.已知集合错误!未找到引用源。
则错误!未找到引用源。
▲ .3.如图是某市2018年11月份30天的空气污染指数的频率分布直注 意 事 项考生在答题前认真阅读本注意事项及各题答题要求 1.本试卷共4页,包含填空题(第1题~第14题)、解答题(第15题~第20题)两部分。
本试卷满分160分,考试时间为120分钟。
考试结束后,请将本试卷和答题纸一并交回。
2.答题前,请您务必将自己的姓名、考试证号用书写黑色字迹的0.5毫米签字笔填写在试卷及答题纸上。
3.作答时必须用书写黑色字迹的0.5毫米签字笔写在答题纸上的指定位置,在其它位置作答一律无效。
4.如有作图需要,可用错误!未找到引用源。
铅笔作答,并请加黑加粗,描写清楚。
方图. 根据国家标准,污染指数在区间错误!未找到引用源。
内,空气质量为优;在区间错误!未找到引用源。
内,空气质量为良;在区间错误!未找到引用源。
内,空气质量为轻微污染;错误!未找到引用源。
由此可知该市11月份空气质量为优或良的天数有▲天.4.执行如图所示的算法流程图,则输出错误!未找到引用源。
的值是▲ .5.已知集合错误!未找到引用源。
若从错误!未找到引用源。
中各取一个数,则这两个数之和不小于4的概率为▲ .6.设等差数列错误!未找到引用源。
的前错误!未找到引用源。
项为错误!未找到引用源。
则错误!未找到引用源。
的值为▲ .7.设函数错误!未找到引用源。
,则错误!未找到引用源。
的值为▲ .8.已知双曲线错误!未找到引用源。
的离心率为2,它的一个焦点是抛物线错误!未找到引用源。
南通、扬州、淮安、泰州四市2018届高三第三次调研语文I试题一、语言文字运用(15分)1.在下面一段话空缺处依次填入词语,零停爭的一组是(3分)《蒙娜丽莎》是一幅享誉全球的画作,作者达•芬奇力图使人物的美丽外形和丰富感情▲巧妙的结合。
画中,蒙娜丽莎生动自然、温柔甜美的笑容▲。
她的笑容充满魅力、耐人寻味,被称为“神秘的微笑”,对此人们一直▲。
A.达到溢于言表不置可否 B.达到跃然纸上莫衷一是C.达成跃然纸上不置可否 D.达成溢于言表莫衷一是答案:B(“达到”的意思是“到”,多指抽象事物或程度;“达成”的意思是经商谈后得到某种结果或形成某种意见。
“溢于言表”指感情流露在言辞、神情上;“跃然纸上”形容描写或刻画得十分生动逼真。
“莫衷一是”的意思是不能得出一致的结论;“不置可否”的意思是不说对也不说不对,指不明确表态。
)2.下列各句中,没有语^的一项是(3分)A.大力发展不仅有利于弘扬民族精神、增强国家凝聚力,而且有利于满足人民群众日益多样化的体育需求、提高国民身体素质。
B.45年前,“东方红一号”的成功发射,打破了超级大国对航天技术的垄断,显示了中国人民勇攀高峰的决心,奠定了中国在国际上的地位。
C.笛声作为听觉意象,能引发诗人的联想,在诗人审美情感的兴起和升华中起到激发、催化作用,从而增强诗歌的表达手段和艺术效果。
D.我们应该充分认识到,我国当下的环境整治是一个综合性难题,需要政府、企业和个人等主体的多方努力共同打造一个绿色的社会环境。
答案: B(A项,“不仅……而且”递进不当;C项,“增强”与“手段”搭配不当;D项,句式杂糅。
)3.下列交际用语使用不得体的一项是(3分)A.新作出版,诚挚裕各位方家斧正!B.初次见面,久仰久仰,请多多赐教!C.惠书敬悉,金玉良言令我茅塞顿开!D.大驾光临,本人定在寒舍虔敬恭候!答案: A(“斧正”为请人修改诗文的敬辞,新作已出版无需修改。
)4.依次填入下面一段文字画横线处的语句,衔接最恰当的一组是(3分)古人喜欢通过门、窗等事物接触外面的大自赢,是为了▲ 。
徐州市2018届高三第三次调研测试政治一、单项选择题:本大题共33小题,每小题2分,共计66分。
在每题给出的四个选项中,只有一个选项是最符合题意的。
1. 2017年12月18日召开的中央经济工作会议确定,按照党的十九大的要求,今后3年要重点抓好决胜全面建成小康社会的三大攻坚战。
这三大攻坚战是A.去产能、去库存、去杠杆B.防范化解重大风险、精准脱贫、污染防治C.稳增长、促改革、调结构D.供给侧结构性改革、乡村振兴、改善民生2. 2018年2月26日至28日,中国共产党第十九届中央委员会第三次全体会议在北京举行。
全会审议通过了A.《中华人民共和国监察法》B.《中华人民共和国宪法修正案》C.《关于国务院机构改革方案的决定》D.《中共中央关于深化党和国家机构改革的决定》3. 2017年11月3日,第一艘由我国自主设计制造的重型自航绞吸挖泥船在江苏启东成功下水。
新一代“造岛神器”向世人展示了其惊人的力量。
该船名为A.天鲸号B.天鲲号C.华龙一号D.“鲲龙”AG6004. 2017年11月10日,亚太经合组织(APEC)第二十五次领导人非正式会议在越南蚬港举行。
本次会议的主题是A.打造全新动力,开创共享未来B.共建面向未来的亚太伙伴关系C.打造包容性经济,建设更美好世界D.构建人类命运共同体、共同建设美好世界5.针对美国挑起的中美贸易摩擦,中国政府拟对原产于美国的大豆等进口商品采取对等措施,这将导致进口美国大豆成本增加25%。
由于我国大豆高度依赖进口,在其它条件不变的情况下,国产大豆价格会受到影响。
若用国产大豆供求曲线来反映这种影响,正确的是6.追影视、看比赛、刷综艺、玩直播……如今,越来越多的用户愿意为线上内容付费,网络视频行业正迎来一波“付费潮”。
为线上内容付费A.践行了避免盲从、理性消费的原则B.体现了对劳动、知识和创造的尊重C.凸显了线上内容的品质决定其价格D.保证了网络视频行业竞争力的提升7.作为国家级铁路PPP示范项目之一,总投资409亿元的杭绍台高铁项目有着破冰意义——这是民营资本首次在国内铁路投资领域实现控股地位。
351511521.Elizabeth shows great _______ in her choice of friends, so she has a lot of trustworthy companions.prehensionB.discriminationC.determinationD. consideration22.Our school holds seminars for students at regular intervals ________ the potential of their future is explored.A.whenB.whereC.thatD.who23.May I speak to Alan, please?Sorry, wrong number. There Alan ________ h ere.A.somethingB.anythingC.everythingD.nothing24.Trans to NanTong now only come to the outer city limits, because building the railway tracks into the city _______ many old buildings.A.would have damagedB.damagedC.should have damagedD.has damaged25 ________ J ack gets home after school is calculated so that Mum can ensure him warm means.A.ThatB.WhenC.WhetherD.How26.What did the teacher recommend for appreciating the classic yesterday?the movie before reading the book.A.To seeB.Having seenC.To have seenD. Seeing27.Sue was greatly inspired though she made ________improvements in her English writing.A.modestB.brilliantC.tremendousD.considerable28.Senior 3 students in our school are motivated to study harder and evaluated on a monthly basis to find out how they _____ _ .A.have been learningB.will learnC.had learntD.learnt29 ________ to pension and free medical care senior citizens in our village are properly looked after and live happy lives.A.EntitlingB.Being entitledC.EntitledD.Having entitled30.Varieties of magazines and research papers are _______ for specific knowledge.A.put outB.made outid outD.taken out31.China is sure to further reduce the poor rural population by over 10 million ________ we Chinese work hard together.A.if onlyB.even ifC.as long asD.for fear that32. tomorrow?Sorry, I was on the phone and ________ most of it.A.had missedB.missedC.would missD.was missing33.The new system introduced last month is not working very effectively ________ professional training.A.in place ofB.in case ofC.in terms ofD.in defense of34.Did your boss adopt your idea?No, he just laughed and ________it as impossible.A.reservedB.advocatedC.anticipatedD.dismissed35. Jennifer?Just a bad dream ______ _.OK B. it right allA B C DI spent 15 years trying to make it in the musicin a recording studio. I knocked on managers doors and sent out demo () after demo, but I got nowhere. In 2007, I 37 a song called This Is My Dream. It was a song about never giving up. I just 38 all of my frustrations at the keyboard.Over the next five years, the music 39 never materialized and I nearly stopped. Then, in 2012, I 40 the song to a music-ed someone to 41 my music.Later that year, I received an email 42 from Universal Music in Hong Kong, requesting a(n) 43 for the song. I negotiated a contract for $5,000 for the use of the song and 44 straight away. My first record deal had appeared out of nowhere. I was pretty excited. The song was a(n) 45 and I was contacted by HKTV who invited me to go to Hong Kong to 46 .When it was my time to go on the stage, there was huge cheers and all I could see was a sea of lights. I was 47 the footage ( ) that I realize what was going on around me. Itwas the 49 I had been waiting for my entire life.After coming off stage, I had photographers and journalists 50 to interview me and hundreds of people 51 to have their photograph taken with me. The next morning I found out my song had gone to number one in the iTunes chart in Hong Kong52 Lady Gaga.Life can 53 you. I had knocked on doors for years, yet my moment came when the opportunity called me. It has reinspired my 54 for music. Hopefully the ball will keep rolling. After all those odd jobs and weekends spent in recording studios, this has made it all55 .36.A. allocate B.afford C.save D.kill37.A. copied B.found C.wrote D.heard38.A. let out B.took in C.got over D.held back39.A. appreciation B.concept C.career D.interest40.A. uploaded B.lost C.sold D.abandoned41.A. promote B.notice C.study D.exploit42.A. unconsciously B.immediately C.naturally D.unexpectedly43.A. discount B.application C.reward D.license44.A. signed up B.gave in C.dropped out D.took over45.A. mess B.trial C.hit D.trick46.A. guide pete ment D.perform47.A. trapped B.interested C.rooted D.lost48.A. think back to B.look back at C.hold on to D.glance down at49.A. opportunity B.challenge C.possibility D.advantage50.A. hesitating B.battling C.rejecting plaining51.A. rang B.queued C.agreed D.claimed52.A. moving B.ignoring C.disturbing D.beating53.A. upset B.inspire C.drown D.surprise54.A. curiosity B.anxiety C.passion D.admiration55.A. fruitless B.worthwhile C.demanding D.controversial A B C DAAll holidays include:flights , accommodation , and most meals.56.Which of the following is suitable for family camping ?A.The Sorrento Peninsula.B.Puerto de Soller.C.Tavira.D.Savage River Lodge.57.How does the leaflet recommend the tourist destinations ?A.By comparing different prices.B.By introducing their features.C.By telling their historical stories.D.By listing thoughtful services.BSymbolic communication in the form of language underlies our unique ability to reason on the conventional wisdom holds so . A new study published in Science , though , suggests our capacity to reason logically may not actually depend on language , at least not fully. The findings show babies still too young to speak can reason and make reasonable deductions.The authors - a team from several European institutions studied infants ( ) aged 12 and 19 months , when language learning and speech production has just begun but before complex mastery has been achieved . The children had to inspect distinct objects repeatedly such as a dinosaur and a flower . The items were initially hidden behind a black wall . In one set of experiments the animation() would show a cup scooping up() the dinosaur . Half of the time , the barrier would then be removed to reveal , as expected , the remaining flower . In the rest of instances , though , the wall would disappear and a second dinosaur would be there.The children deduced in these latter occurrences that something was not quite right, even though they were unable to express in words what was wrong . Eye tracking a commonly used technique to judge mentalunexindicate that the acquisition of logical vocabulary might not be the source of the most fundamental logicaly author Nicol Cesana Arlotti. A major component of human logic , he notes , relates to thinking about the barrier or does the flower? In a formal logic this is called a disjunctive syllogism(): A or B; not if A , therefore B.Cesana Arlotti acknowledges his findings do not deny the importance of language and symbolic communication to human brain development , and to our evolutionary backstory . Yet the new research suggestsasoning capacities . He plans further work studying how logic before the development o language might still differ from reasoning abilities that appear once language comes along , as language may open additional reasoning abilities unavailable to the speechless brain.-he adds.58.We can learn from the new study published in Science that .A.the ability to reason logically is unique to humans.B.babies are too young to make reasonable deductions.nguage is not a requirement for some basic reasoning.D.the now findings correspond with the conventional ideas.59.The researchers draw the conclusion from the fact that .A.the infants were aware of the illogical outcomes.B.the infants inspected distinct objects over and again.C.the infants were very sensitive to the removal of the barrier.D.the infants showed interest in the appearance of the dinosaur.60. meansA.resistingB.removingC.expandingD.exploring61.According to the text , what will Cesana Arlotti study further ? .A.The mental development of babies.B.The initial state of logic in the mind.C.Distinctions between verbal and preverbal logic.D.Additional reasoning abilities of the speechless brain.CPeople love spreading information and sharing opinions. You can see this online: every day, 4 million new blogs are written, 80 million new photos are uploaded and 616 million new tweets are released into cyberspace. We experience a burst of pleasure when we share our thoughts, and this drives us to communicate. It is a usefulfeature of our brain, because it ensures that knowledge, experience and ideas do not get buried with the person who first had them, and that as a society we benefit from the products of many minds.Of course, in order for that to happen, merely sharing is not enough. We need to cause a reaction. Each time we share our opinions and knowledge, it is with the intentiothough: we approach this task from inside our own heads. But if we want to have an impact on others, we need to understand what goes on inside their head.What determines whether you affect the way others think and behave or are ignored? You may assume that numbers and statistics are what you need to change their point of view. Well, experiments have pointed to the reality that people are not driven by facts. They are not enough to alter beliefs and they are practically useless for motivating action. Consider climate change: there are mountains of data indicating that humans play a role inHundreds of studies show that exercise is good for you and people believe this to be so, yet this knowledge fails miserably at getting many to step on a treadmill.The problem with an approach that prioritizes information is that it ignores the core of what makes us human: our motives, our fears, our hopes, our desires, our prior beliefs. In fact, the tsunami of information we areabsolutely anything we want to believe with a simple click of the mouse. Instead, our need for agency, our craving to be right, and a longing to feel part of a group really count. It is those motivations we need to tap into to make a change, whether within ourselves or in others.62.People love spreading information and sharing opinions because .A.they often think their thoughts are superior toB.they can provide a lasting pleasure of communicationC.they want to affect the behaviours and beliefs of othersD.they are able to u better.63.The examples of climate change and health indicate that .A. mindsB.numbers and statistics are persuasive enough to othersC. otherD.people are fed up with huge amounts of data and studies64.What does the writer stress in the passage?A.Behaviors determine our beliefs.B.Our desires shape what we believe.C. others.D.Too much information serves no purpose.DApril 2018, ManchesterMy dearest daughter,As I looked across at you sitting on the sofa watching The X Factor, I noticed that you are no longer a child, and that having just celebrated your 14th birthday, you are now a young woman starting a journey into becoming an adult woman. As I looked at you, I remembered myself at 14, and the vastly different places we are beginning this journey from.Your identity as a mixed-race young woman, with an English father and a Pakistani mother, has already influenced how you place yourself in this world. As yet, you are unaware of the personal struggles that I took at the age of 25 to marry. How it felt when my mother refused to come to my wedding. The sharp criticisms of the Asian community that such marriages do not work out and always end in divorce. The confidence I had to grow, as we chose to live in a multicultural community, as I refused to be shamed into living in the leafier white suburbs.Then, at the age of 30, I became your mum with all the joys and struggles this brought, as I refused the Asianbrought up on a council estate, within a tight-knit extended Muslim family, through which poverty, racism and neglect were woven. I was never given the freedoms or the opportunity to experience new things. Now, as I hear you play your piano, I am grateful that you have these opportunities.So many doors were closed to me as a young person, and as I fought for small steps of freedom. I soon learned that it was better to do what I wanted without the knowledge of my parents, and so deceit and deception became woven into my life too. The pressures thonour, were choking. Behind closed doors at home, the neglect and abuse took place. It was hidden, I felt the shame, lived with the far and suffered alongside my sister and two younger brothers. Oh, the power we thought our parents had over us! I was convinced that one day my father would indeed beat us so hard that leaving us for dead, he would, as his threats said he would, bury us in the large back garden, and tell the school he had taken us back to Pakistan for good. My sister and I longed for a different blue sky to live under.As a daughter of immigrant parents, I carried their hopes of a better education for their children my own veins pulsing with the hard-work ethic and need to be grateful for the opportunity of a free education. And it was education that provided me with the strength to find my own blue sky. I fought to leave home to go to university at the age of 18, and never returned to live my parents again.Now as you explore your mixed-race heritage, which I hope we have supported you to do with visits to Pakistan and ensuring you go to multi-cultural schools, I want you to take the very best of all that is Asian with you as you become a woman.The struggles of identity and belonging will come but I hope that we have given you a strong foundation from which to explore these struggles. All the opportunities and freedoms that I only dreamed of as a young woman, I have offered you. I have chosen a different path of loving you as my daughter, with an unconditionalI want you to know that although your journey has been vastly different, I am excited as I watch you standing on the threshold of becoming a woman for all the adventures and possibilities the future holds for you.May you fly your blue sky with grace, confidence and hope as you find your place in this beautiful and crazy world.A.she married against the wishes of her familyB.she was believed to fall victim to her marriageC.she would leave the family to settle in the white suburbsD.she would bring shame to the multicultural community66. Mommy means .A.her childhood was no different from herB.her parents treated her the way she does her daughterC.her daughter experienced the same traditions at birth with herD.her daughter can enjoy the opportunities which she67. family life?A.She suffered much abuse in the family.B.She fought against her Muslim identity.C.She was forced to drop out of school.D.She behaved like a good Muslim girl.68.Mommy sends her daughter to multi-cultural schools because .A.they provide more opportunities and freedomsB.her daughter can develop a sense of belongingC.her daughter can explore the best of Asian heritageD.they offer children a westernized way of education69.Which of the following can best describe Mommy?A.Outgoing, tolerant and realistic.B.Determined, liberal and optimistic.C.Conservative, tricky and aggressive.D.Independent, arbitrary and ambitious.70.Mommy writes the letter to .A.reveal the sufferings she had as a teenager girlB.criticize the social prejudice in her communityC.emphasize the importance of family supportD.encourage her daughter to pursue her dream1work takes up the majority of our waking day and it very much defines us. We often use our jobs as an introduction and a window into our lives when we meetsomeone a job reflects who we are. It influences the clothes we wear, the holidays we take, where we live and how we feel about ourselves. Of course, it takes up sizeable amounts of time, focus and energy. We complain about getting on that rush-hour train or the way the boss speaks; we laugh about the pain of Monday mornings and the thrill of annual leave. But for many people, work has ceased to be simply a source of complaints or a joke.-related illness arisen now? From the research that has been carried out on this subject, workload is consistently cited as the most common reason for this ill health.-health experts often talk about resilience: the ability to cope, survive and bounce back from difficulties. Some is inborn, but resilience can be built and fosteredWe know that resilience at work is partly fostered by supportive relationships. So it is important to nurture healthy interpersonal relationships at work, whether that is through the support of a good manager or through friendship with work colleagues. Any supportive relationship you invest in at work will improve your stress level.Resilience can also be fostered by taking control. That is not easy in the face of a demanding boss or terrible workloads, so you might need to look for it elsewhere. Being able to take control in other areas of your life also leads to empowerment and grows your confidence. Control or change your journey to work, what you have for lunch or even who you sit with in the canteen.Small changes may seem trivial, but they are super effective. Psychologists talk about micro-actions and these are incredibly powerful in the face of stress changing controllable aspects of your life so that those repeated small successes foster self-esteem, confidence and ultimately more success in the bigger areas of your life. It is also crucial not to let everything become about work. Look for micro-successes elsewhere, in your hobbies, your exercise goals and your life plan.Our work appears to be making more and more of us unwell. But we all have the ability to make ourselves better.150Self-confidence is an attitude which allows individuals to have positive yet realistic views of themselves and their situations. People who are not self-confident depend excessively on the approval of others in order to feel good about themselves. They tend to avoid taking risks because they fear failure. They generally do not expect to be successful. They often put themselves down and tend to discount or ignore compliments paid to them.1.302.3.1.2.I.20 1 201 5 CBCCA 610 CBBCC 1115 CAABB 1620 AABBAI.II.15 1 15 2125 BBAAB 2630 DAACA 3135 CBCDDI I.III.20 1 203640 BCACA 4145 BDDAC 4650 DDBAB 5155 BDDCBI V.IV.15 2 30 5660 DBCAB 6165 CCABA 6670 DACBDV.V.10 1 1071. identity 72. aspects/ areas 73. mixed 74. rise75.immediately/ instantly/ directly/ soon/ shortly/ swiftly/ promptly76.investment(s) 77. reach 78. build/ depend/ rely/ count/ rest79. restrict/ limit 80. favourV I.VI. 1 25One possible version:Self-confidence is crucial to our development. However, lack of self-confidence is common among middle school students. Some dare not express themselves publicly while others think negatively or have poor capacity to handle problems.Undoubtedly, embracing self-confidence is of tremendous significance to us middle school and feel discouraged. With self-confidence, we may accomplish what seems to be impossible previously. Actually, it has been universally acknowledged that self-confidence is half of the success that can bring us courage to stick to what we do.Given the importance of self-confidence to our success, we should spare no effort to cultivate and boost it. Setting specific and realistic goals can make us confident and hopeful about life. In addition, giving ourselves praise and reward for our achievements will lift our confidence level. With firm determination and courage we can become more confident. 153 words1. 25 52.13. 130170 24. 123)5.11 16. 17.2。
江苏南通、扬州、泰州、宿迁、淮安、连云港、徐州七市联考2018届高三第三次调研测试语文Ⅰ一、语言文字运用(15分)1.在下面一段话的空缺处依次填入词语,最恰当的一组是(3分)成为文化世家的必要条件是家庭有着▲的文化底蕴。
北宋最著名的文化世家非苏氏一门莫属,父亲苏洵发奋苦读、勤于笔耕的美名▲,而苏轼和苏辙两兄弟在文坛的影响更是超过了父亲,真可谓▲。
A.深厚家喻户晓长江后浪推前浪B.深厚不言而喻这山望着那山高C.深重不言而喻长江后浪推前浪D.深重家喻户晓这山望着那山高2.下列交际用语使用不得体...的一项是(3分)A.女士们、先生们,大家好!欢迎光临古都洛阳!(导游对游客)B.下一阶段的工作我已经安排好,如有疑问,欢迎垂询!(上级对员工)C.这次回母校叨扰老师,耽搁您宝贵的时间,真不好意思!(学生对老师)D.请记得按时服药,及时复诊,祝您早日康复!(医生对患者)3.下列对联中,适合悬挂在泰山风景区大门两侧的一组是(3分)①摘星捧日雄踞五岳之首蔚霞蒸云广纳万有之灵②水木荣春晖柳外东风花外雨江山留胜迹秦时明月汉时关③山高则配天阳鲁阴齐资化育坤厚故载物西河东海仰生成④气备四时与天地日月鬼神合其德教垂万世继尧舜禹汤文武人之师A.①③ B.①④ C.②③ D.②④4.在下面一段文字横线处填入语句,衔接最恰当的一项是(3分)我们总是埋怨这世界太喧闹,让我们静不下心来专注一个目标、一项事业。
怎样才能静下心来?▲。
▲,▲。
▲,▲,▲。
这世界的一切喧闹,原本都是心闹。
①世界再喧闹我们也要听得见自己内心的声响②知道自己要什么、不要什么③静得听得见一根针掉落的声音时④关键看我们的内心⑤我们才能听得见内心的梦想和希望⑥只有当我们的心静了A.①②⑥③⑤④B.①⑥②③⑤④C.④①②⑥③⑤D.④⑥③⑤②①5.下列对“中国老龄产业协会”会徽理解不恰当...的一项是(3分)A.会徽将篆体“老”字置于中心位置,点明协会工作与老年人有关。
南通等七市 2017-2018 学年度高三第三次调研测试英语科目第一部分听力(略)第二部分英语知识运用(共两节,满分35分)第一节单项填空(共15小题;每小题1分,满分15分)21.Elizabeth shows great _______ in her choice of friends, so she has a lot of trustworthy companions.prehensionB. discriminationC.determinationD. consideration22.Our school holds seminars for students at regular intervals ________ the potential of their future is explored.A. whenB.whereC. thatD.who23.-May I speak to Alan, please?-Sorry, wrong number. There isn’t Alan ________ h ere.A.somethingB.anythingC.everythingD.nothing24. Trans to NanTong now only come to the outer city limits, because building the railway tracks into the city _______ many old buildings.A.would have damagedB.damagedC.should have damagedD.has damaged25 ________ J ack gets home after school is calculated so that Mum can ensure him warm means.A.ThatB.WhenC.WhetherD.How26.-What did the teacher recommend for appreciating the classic yesterday?- _______ the movie before reading the book.A.To seeB.Having seenC.To have seenD. Seeing27.Sue was greatly inspired though she made ________improvements in her English writing.A.modestB.brilliantC.tremendousD.considerable28.Senior 3 students in our school are motivated to study harder and evaluated on a monthly basis to find out how they _____ _ .A. have been learningB.will learnC. had learntD. learnt29 ________ to pension and free medical care,senior citizens in our village are properly looked after and live happy lives.A. EntitlingB.Being entitledC.EntitledD.Having entitled30.Varieties of magazines and research papers are _______ with the aim of feeding readers’ appetite for specific knowledge.A.put outB.made outid outD.taken out31.China is sure to further reduce the poor rural population by over 10 million ________ we Chinese work hard together.A.if onlyB.even ifC.as long asD.for fear that32.-What’s the weather forecast for tomorrow?-Sorry, I was on the phone and ________ most of it.A.had missedB.missedC.would missD.was missing33.The new system introduced last month is not working very effectively ________ professional training.A.in place ofB. in case ofC.in terms ofD.in defense of34.-Did your boss adopt your idea?-No, he just laughed and ________it as impossible.A. reservedB.advocatedC.anticipatedD.dismissed35.-What’s the matter with you, Jennifer?-Just a bad dream ______ _.A.that’s OKB. that’s itC.that’s rightD.that’s all第二节完形填空(共20 小题;每小题 1 分,满分20 分)请认真阅读下面短文,从短文后各题所给的A、B、C、D 四个选项中,选出最佳选项,并在答题卡上将该选项涂黑。
扬州、泰州、淮安、南通、徐州、宿迁、连云港七市2017-2018学年度高三第三次调研测试数学试题数学I参考公式:柱体的体积公式V S h =柱体,其中S 为柱体的底面积,h 为高.锥体的体积公式13V Sh =锥体,其中S 为锥体的底面积,h 为高. 样本数据1x ,2x ,…,n x 的方差212)(1x x n s n i i -=∑=,其中∑==n i i x n x 11.一、填空题:本大题共14小题,每小题5分,共计70分.请把答案填写在答题卡相应位置上......... 1. 已知集合{} 1035 A =-,,,,{} 20 B x x =->,则A B = ▲ .2. 已知(13i)(i)10i a b ++=,其中i 为虚数单位,a b ∈,R ,则ab 的值为 ▲ . 3. 已知一组数据8291898890,,,,,则这组数据的方差为 ▲ . 4. 根据如图所示的伪代码,已知输出值y 为3,则输入值x 为 ▲ .5. 函数2lg(43)yx x =--的定义域为 ▲ .6. 袋中有若干只红、黄、蓝三种颜色的球,这些球除颜色外完全相同.现从中随机摸出1只球,若摸出的球不是红球的概率为0.8,不是黄球的概率为0.5,则摸出的球为蓝球的概率为 ▲ . 7. 在△ABC 中,若sin :sin :sin 4:5:6A B C =,则cos C 的值为 ▲.8. 在平面直角坐标系xOy 中,已知双曲线2221(0)12x y b b-=>的焦点到渐近线的距离为2,则该双曲线的离心率为 ▲ .(第4题)9. 已知{}n a 是等比数列,n S 是其前n 项和.若32a =,1264S S =,则9a 的值为 ▲ .10.现有一正四棱柱形铁块,底面边长为高的8倍,将其熔化锻造成一个底面积不变的正四棱锥形铁件(不计材料损耗).设正四棱柱与正四棱锥的侧面积分别为1S ,2S ,则12S S 的值 为 ▲ .11.已知实数a b c ,,成等比数列,621a b c +++,,成等差数列,则b 的最大值为 ▲ .12.如图,在平面四边形ABCD 中,4AB =,2AD =,∠60DAB =°,3AC BC =,则边CD 长的最小值为 ▲ .13.如图,已知2AC =,B 为AC 的中点,分别以 AB,AC 为直径在AC 的同侧作半圆, M,N 分别为两半圆上的动点(不含端点A B C ,,),且BM BN ⊥,则AM CN ⋅的最大值为 ▲ . 14.已知函数310() 2 0ax x f x x ax x x -≤⎧⎪=⎨-+->⎪⎩, ,,的图象恰好经过三个象限,则实数a 的取值范围是 ▲ .二、解答题:本大题共6小题,共计90分.请在答题卡指定区域.......内作答.解答时应写出文字说明、证明过程或演算步骤.15.(本小题满分14分)如图,在直四棱柱1111ABCD A B C D -中,底面ABCD 为 平行四边形,11C BC D =.求证:(1)11B D ∥平面1C BD ;(2)平面1C BD ⊥平面11AAC C .16.(本小题满分14分)如图是函数π()sin()(0>0 )2f x A x A ωϕωϕ=+>≤,,在一个周期内的图象.已知 点P (6 0)-,,(2 3)Q --,是图象上的最低点,R 是图象上的最高点. (1)求函数()f x 的解析式;(2)记RPO α∠=,(QPO βαβ∠=,均为锐角),求tan(2)αβ+的值.17.(本小题满分14分)如图,某生态农庄内有一直角梯形区域ABCD ,AB ∥CD ,AB BC ⊥,3AB =百米,2CD =百米.该区域内原有道路AC ,现新修一条直道DP (宽度忽略不计),点P 在道路AC 上(异于A C ,两点),π6BAC DPA θ∠=∠=,. (1)用θ表示直道DP 的长度;(2)计划在△ADP 区域内种植观赏植物,在△CDP 区域内种植经济作物.已知种植观赏植物的成本为每平方百米2万元,种植经济作物的成本为每平方百米1万元, 新建道路DP 的成本为每百米1万元,求以上三项费用总和的最小值. 18.(本小题满分16分)如图,在平面直角坐标系xOy 中,已知椭圆22221(0)x y a b a b+=>>的右焦点为F ,P 为右准线上一点.点Q 在椭圆上,且FQ FP ⊥. (1)若椭圆的离心率为12,短轴长为① 求椭圆的方程;② 若直线OQ PQ ,的斜率分别为12k k ,, 求12k k ⋅的值.(2)若在x 轴上方存在P Q ,两点,使O F P Q ,,, 四点共圆,求椭圆离心率的取值范围. 19.(本小题满分16分)(第18题)已知数列{}n a 满足15(1)()2nn n n aa n *+++-=∈N ,数列{}n a 的前n 项和为n S . (1)求13a a +的值; (2)若1532a a a +=.① 求证:数列{}2n a 为等差数列;② 求满足224()pm S S p m *=∈N ,的所有数对()p m ,.20.(本小题满分16分)对于定义在区间D 上的函数()f x ,若存在正整数k ,使不等式1()f x k k<<恒成立, 则称()f x 为()D k 型函数. (1)设函数()f x a x=,定义域[][]3113D =--,,.若()f x 是(3)D 型函数,求实数a 的取值范围; (2)设函数2()xg x e x x =--,定义域(02)D =,.判断()g x 是否为(2)D 型函数,并给出证明.(参考数据:278e <<)扬州、泰州、淮安、南通、徐州、宿迁、连云港七市2017-2018学年度高三第三次调研测试数学试题数 学 II (附加题)21.【选做题】本题包括A 、B 、C 、D 四小题,请选定其中两题,并在.........相应的答题区域.......内作..答..若多做,则按作答的前两题评分.解答时应写出文字说明、证明过程或演算步骤. A .[选修4—1:几何证明选讲](本小题满分10分)如图,△ABC 中,已知3AB =,6BC =,4AC =,D 是边BC 上一点,AC 与过点A B D ,,的圆O 相切,求AD 的长.B .[选修4—2:矩阵与变换](本小题满分10分)已知矩阵1011⎡⎤=⎢⎥-⎣⎦A ,1203⎡⎤=⎢⎥⎣⎦B ,=C AB .(1)求矩阵C ;(2)若直线1:0l x y +=在矩阵C 对应的变换作用下得到另一直线2l ,求2l 的方程.C .[选修4—4:坐标系与参数方程](本小题满分10分)在平面直角坐标系xOy 中,已知直线l 的参数方程为3314x t y t =+⎧⎨=-⎩,(t 为参数),圆C 的参数方程为cos sin x r y r θθ=⎧⎨=⎩,(θ为参数,0r >),若直线l 被圆C 截得的弦长为4,求r 的值.D .[选修4—5:不等式选讲](本小题满分10分)已知a b c ,,是正实数,且5a b c ++=,求证:222210a b c ++≥.【必做题】第22、23题,每小题10分,共计20分.请在答题卡指定区域.......内作答,解答时应写出文字说明、证明过程或演算步骤.22.(本小题满分10分)将4本不同的书随机放入如图所示的编号为1234,,,的四个抽屉中. (1)求4本书恰好放在四个不同抽屉中的概率;(2)随机变量X 表示放在2号抽屉中书的本数,求X 的分布列和数学期望()E X .23.(本小题满分10分)在平面直角坐标系xOy 中,已知点F 为抛物线22(0)y px p =>的焦点,直线l 过点F 与抛物线相交于A B ,两点(点A 在第一象限). (1)若直线l 的方程为4233y x =-,求直线OA 的斜率; (2)已知点C 在直线x p =-上,△ABC 是边长为23p +的正三角形,求抛物线的方程.扬州、泰州、淮安、南通、徐州、宿迁、连云港七市2017-2018学年度高三第三次调研测试数学学科参考答案及评分建议一、填空题:1.{}35, 2.3 3.10 4. 5.(41)-,6.0.3 7.1889.2或6 10.25 11.34 12.32 13.1414.0a <或2a >二、解答题:数学学科参考答案及评分建议数学Ⅱ(附加题)春到四月,如火如荼,若诗似画,美到了极致,美到了令人心醉。