2017-2018学年高三第一次月考(联考)
北京市昌平区第二中学高三10月月考物理试题
昌平二中2017-2018学年第一学期高三年级第一次月考物理试卷（满分100分，考试时间90分钟）2017.10一、单项选择题．本题共16小题，每小题3分，共48分．在每小题给出的四个选项中，只有一个选项则符合题意的，全部选对得3分，选错或不答的得0分．1．科学家发现再月球上含有丰富的32He （氦3），它是一种高效、清洁、安全的核聚变燃料，其核聚变方程可表示为331221He He 2H X +→+．关于32He 的聚变，下列表述正确的是（ ）A ．X 是α粒子B ．X 是β粒子C ．X 是中子D ．聚变反应没有质量亏损【答案】A【解析】A ．根据质量数和电荷数守恒得X 的电荷为2，质量数为4，所以X 是α粒子，故A 正确；BC 错误；D ．聚变反应要放出大量能量，会有质量亏损，故D 错误．故选A ．2．更好列核反应方程中，属于裂变的是（ ）A ．1441717281N He O H +→+ B ．238234492902U Th He →+ C ．23411120H H He n +→+ D ．235114489192056360U n Ba Kr 3n +→++【答案】D【解析】裂变是中子轰击较重的原子核后，原子核被分解为较轻原子核的过程，可见选项D 是正确的．故选D ．3．如图所示，质量为M 、倾角为θ的斜面体静止在水平地面上，质量为m 的物块刚好能在斜面上匀速下滑．重力加速度为g ．下列说明正确的是（ ）A ．物块受到重力、支持力、摩擦力和下滑力作用B ．物块与斜面体之间的动摩擦因数为tan θC ．地面受到的压力为MgD ．地面受到的压力大于()m M g +【答案】B【解析】当m 匀速下滑时有：sin cos mg mg θμθ=，以整体为研究对象，系统处于平衡状态，因此地面对系统的支持力：()N F M m g =+，根据牛顿第三定律可以知道，地面受到的压力为()M m g +，故B 正确，ACD 错误．故选B ．4．如图所示，跳伞运动员在打开降落伞后，即开始减速下降．的此过程中，下列说法错误的是（）A．运动员处于失重状态B．运动员处于超重状态C．伞绳对运动员的作用力大于运动员的重力D．伞绳对运动员的作用力等于运动员对伞绳的作用力【答案】A【解析】AB．跳伞运动员正减速下落，则运动的方向向下，而加速度的方向向上运动员于超重状态，故A错误，B正确；C．运动员处于超重状态，伞绳对运动员的作用力大于运动员的重力，故C正确；D．伞绳对运动员的作用力运动员对伞绳的作用力是作用力与反作用力，总是大小相等，方向相反，故D正确．故选A．5．如图所示，重物P放在一长木板OA上，将长木板绕O端转过一个小角度的过程中，重物P相对于木板始终保持静止．关于木板对重物P的摩擦力和支持力做功的情况，下列说法正确的是( )A．支持力对重物做正功B．支持力对重物不做功C．摩擦力对重物做正功D．摩擦力对重物做负功【答案】A【解析】物块受到重力、支持力和摩擦力的作用，处于平衡状态，在缓慢上升的过程中，位移方向向上，重力对物块做了负功，物块在上升的过程中，物块相对于木板并没有滑动，所以物块受到的摩擦力对物块做的功为零．因为重力对物块做了负功，摩擦力对物块不做功，根据动能定理可以知道，支持力对物块做正功，故A正确，BCD错误．故选A．6．如图所示，摩天轮是一种大型转轮状的游乐观光设施，挂在轮边缘的是供游客搭乘的座舱，因座舱能自由调整，游客可以一直保持竖直坐姿，尽情欣赏城市美景．假设游客随座舱在竖直面内做匀速圆周运支．下列叙述正确的是（）A ．游客所受的合外力为零B ．在最高点时，乘客重力大于座椅对他的支持力C ．摩天轮转运过程中，游客的机械能保持不变D ．摩天轮转运过程中，乘客重力的瞬时功率保持不变【答案】B【解析】A ．根据牛二定律2mV F r=合，大太阳A 错误； B ．小球沿光滑的斜面轨道运动，离开轨道后做斜上抛运动，到达最高点时沿水平方向的分速度不能等于0，由机械能守恒可以知道，小球不能到达与0点等高的点，故B 错误；CD ．小球沿光滑斜面轨道运动到接近轨道的羰点b 点时，速度的的方向沿轨道的切线方向指向左上方，可以知道小球沿轨道运动到接近b 点时，沿水平方向的分速度不能等于0，由机械能守恒可以知道，小球不能达到与0点等高的点，故C 错误，D 错误． 故选A ．7．将一个皮球从距地面高度为h 处由静止释放，经过时间0t 落地，碰到地面弹起后又上升到最高点.球与地面作用的时间极短，不计空气阻力以及球与地面作用过程中机械能的损失.图为定性反映皮球运动过程中速度v 的大小随时间t 变化的图象，其中正确的是（ ）A ．B ．C ．D ．【答案】C【解析】皮球从距地面高度为h 处由静止释放，因不考虑空气阻力，所以下落加速度为g ，做自由落体运动，故速度公式v gt =，得v t -图象为一直线，经时间t 落地与地面碰撞过程无机械能损失，所以球将以原速率弹回，因不考虑空气阻力，故为竖直上抛物动，加速度为g ，由速度公式知0v v gt =-，所以v t -图象也为一直线，故C 正确．故选C ．8．发球机从同一高度向正前方依次水平射出两个速度不同的乒乓球(忽略空气的影响)．速度较大的球越过球网，速度较小的球没有越过球网，其原因是( ) A.速度较小的球下降相同的距离所用的时间较多B.速度较小的球在下降相同距离时在竖直方向上的速度较大C.速度较大的球通过同一水平距离所用的时间较少D.速度较大的球在相同时间间隔内下降的距离较大【答案】C【解析】ABD ．同一高度射出的乒乓球在竖直方向上做自由落体运动，下降相同的距离，所用的时间相同，在竖直方向上的速度相同，下降相同的时间间隔，下降的距离相同，故ABD 错误；C ．乒乓球在水平方向上做匀速运动，通过同一水平距离，速度较大的球所用的时间较少，下落的高度较小，故能过网，故C 正确．故选C ．9．如图所示，轻质不可伸长的晾衣绳两端分别固定在竖直杆M 、N 上的a 、b 两点，a 、b 两点处于同一水平线上．悬挂衣服的衣架钩是光滑的，挂于绳上处于静止状态．如果只人为改变一个条件，当衣架静止时，下列说法正确的是（ ）A ．绳的右端上移动c ，绳子拉力变小B ．绳的右端上移动x ，绳子拉力变大C ．将杆N 向右移一些，绳子拉力变大D ．将植N 向右移一些，绳子拉力不变【答案】C【解析】AB ．两个绳子的合力向上，大小等于衣服的重力，因为夹角不变，所以绳子的拉力不变，故AB 错误；CD ．当杆向右移动后，根据cos x L θ=，即L 变大，绳子不变，所以θ角度减小，绳子与竖直方向的夹角变大，绳子的拉力变大，故C 正确，D 错误．故选C ．10．四个固定在竖直平面内的光滑轨道ab 如图所示，从O 点静止释放小物块（可视为质点），仍能上升到与O 点等高的位置的是（ ）A ．B ．C ．D ．【答案】A【解析】A ．小球沿光滑的斜面轨道运动，到达最高点时的速度等于0，恰好到达与0点高度相等的点，故A 正确．故选A ．11．如图所示，一半径为R 的光滑半圆形轨道固定在水平地面上，在轨道水平直径的一端有一质量为m 的质点P ，由静止开始下滑．当质点P 滑到轨道最低点时（ ）AB ．向心加速度的大小为gC ．受到的支持力大小为mgD ．受到的支持力大小为3mg 【答案】D【解析】A ．依据动能定理212mgR mv =，解得v =A 错误； B ．依据2v a R=，解得2a g =，故B 错误； CD ．依据牛二定律2mv N mg R-=，解得3N mg =，故C 错误，D 正确． 故选D ．12故选D．13．“嫦娥一号”成功发射后,探月成为同学们的热门话题.一位同学为了测算卫星在月球表面附近做匀速圆周运动的环绕速度,提出了如下实验方案:在月球表面以初速度v竖直上抛一个物体,测出物体上升的最大高度h,已知月球的半径为R,便可测算出绕月卫星的环绕速度.按这位同学的方案,绕月卫星的环绕速度为（）【答案】A【解析】A．在月球表面以初速度v竖直上抛一个物体，测出物体上升的最大高度h，根据竖直上抛的运动规律得：22vgh=，研究卫星星球的匀速圆周运动，根据万有引力提供向心力得：22GMm vmR R=…①，根据万有引力等于重力得：2GMmmgr=，得2G M g R=…②，由①②得绕月卫星的环绕月卫星的环绕速度为：v v=A正确；B．圆周运动过程中，在最高点，由重力和支持力的合力提供向心力F，向心力指向下方，所以F mg N=-，则支持力N mg F=-，所以重力大于支持力，故B正确；C．机构能等于重力势能和动能之和，摩天轮运动过程中，做匀速圆周运动，乘客的速度大小不变，则动能不变，但高度变化，所以机械能在变化，故C故错；D．由于速度的方向在改变，故瞬时功率都在改变，故D错误．故选B ．14．2013年12月2日，西昌卫星发射场，长征三号乙运载火箭将“嫦娥三号”送到38万公里之外的“月宫”．某一段时间内，“嫦娥三号”在距离月球表面高为h 的轨道上绕月球做匀速圆周运动，运行周期为T ．已知引力常量为G ，月球的半径为R ．利用以上物理量计算月球质量的表达式是（ ）A ．2324πR GTB ．2324πh GT C ．2324π()R h GT + D ．224π()R h GT + 【答案】C 【解析】根据万有引力提供向心力有：2224π()()Mm G m R h R h T=++，计算得出： 2224π()R h M GT +=，故C 正确，ABD 错误． 故选C ．15．一物体放在光滑水平面上，若物体仅受到沿水平方向的两个力1F 和2F 的作用，在两个力开始作用的第1s 内物体保持静止状态．已知这两个力随时间变化的情况如图所示，则（ ）A ．在第2s 内，物体做加速运动，加速度减小，速度增大B ．在第3s 内，物体做加速运动，加速度增大，速度增大C ．在第4s 内，物体做加速运动，加速度减小，速度增大D ．在第6s 末，物体又处于静止状态【答案】B【解析】A ．物体在第2s 内，合力逐渐增大，则加速度逐渐增大，速度逐渐增大，做变加速直线运动，故A 错误；B ．物体在第3s 内，合力逐渐增大，则加速度逐渐增大，速度逐渐增大，做变加速直线运动，故B 正确；C ．在第4s 内物体所受的合力均匀减小，则加速度均匀减小，因为合力的方向未发生变化，所以加速度的方向不变，故C 错误；D ．在第1s 5s -内，合力的方向不变，则加速度的方向不变，物体一直做加速直线运动，5s 6s -内物体做匀速直线运动，第6s 未物体的速度不为零，故D 错误．故选B ．16．如图所示，将小砝码置于桌面上的薄纸板上，用向右的拉力F 将纸板迅速抽出，砝码最后停在桌面上．若增加F 的大小，则砝码（ ）A ．与纸板之间的摩擦力增大B ．在纸板上运动的时间减小C ．相对于桌面运动的距离增大D ．相对于桌面运动的距离不变【答案】B【解析】A ．砝码对纸极压力，由f N μ=知砝码与纸板之间的摩擦力不变，故A 错误；B ．增加F 的大小，纸板的加速度增大，而砝码的加速度不变，所以砝码在纸板上运动的时间减小，故B 正确；CD ．设砝码在纸板上运动时的加速度大小为1a ，在桌面上运动的加速度为2a ，则砝码相对于桌面运动的距离为：221222v v S a a =+，由11v a t =知，1a 不变，砝码在纸板上运动的时间t 减小，则砝码离开纸板时的速度v 减小，由上知砝码相对于桌面运动的距离S 减小，故CD 错误．故选B ．二、实验题（本题共3小题，每空2分，共14分）17．（2分）在“探究弹力和弹簧伸长的关系”实验中，下列说法正确的是__________．A ．应当在钩码静止时读取数据B ．应当在弹簧处于水平自然状态时测量弹簧的原长C ．应当在弹簧处于自然下垂状态时测量弹簧的原长D ．若以弹簧长度为横坐标，以弹簧弹力为纵坐标，根据各组数据所绘制图线的斜率即为该弹簧的劲度系数【答案】ACD【解析】A ．实验时应在钩码静止时读取数据，故A 正确；B ．因为弹簧，自身有重力，所以先竖直悬挂，后测量原长，这样挂上砝码后测出弹簧，伸长后的长度减去原长能准确反映伸长量，故B 错误，C 正确；D ．根据胡定定律知,，()F k x l =-，则以弹簧长度为横坐标，以弹簧弹力为纵坐标，根据各组数据所绘制图线的斜率即为该弹簧的劲度数，故D 正确；故D 正确．故选ACD ．18．用如图甲所示的实验装置测量物体沿斜面匀加速下滑的加速度，打点计时器打出的纸带如图乙所示．已知纸带上各相邻点的时间间隔为T ，则可以得出打点计时器在打出C 点时小车的速度大小的表达式为______________，小车运动的加速度大小的表达式为______________．【答案】342x x T + 341224x x x x T +-- 【解析】当物体做匀变速直线运动时，物体在某段时间内的平均速度等于这段时间的中间时刻的瞬时速度，所以在打C 点的瞬时速度等于CE 段的平均速度，即为342x x T +． 美好2x aT ∆=可得：23112x x a T -=，24222x x a T -=，122a a a +=，所以可得小车运动的加速度341224x x x x a T +--=． 19．（8分）某物理实验小组采用如图甲所示的装置研究平抛运动．（1）安装实验装置的过程中，斜槽末端的切线必须是水平的，这样做的目的是__________．A ．保证小球飞出时，速度既不太大，也不太小B ．保证小球飞出时，初速度水平C ．保证小球在空中运动的时间每次都相等D ．保证小球运动的轨迹是一条抛物线（2）某同学每次都将小球从斜槽的同一位置无初速释放，并从斜槽末端水平飞出．改变水平挡板的高度，就改变了小球在板上落点的位置，从而可描绘出小球的运动轨迹．某同学设想小球先后三次做平抛，将水平板依次放在如图乙1、2、3的位置，且1与2的间距等于2与3的间距．若三次实验中，小球从抛出点到落点的水平位移依次为1x 、2x 、3x ，忽略空气阻力的影响，下面分析正确的是__________．A ．2132x x x x -=-B ．2132x x x x -<-C ．2132x x x x ->-D ．无法判断（3）另一同学通过正确的实验步骤及操作，在坐标纸上描出了小球水平抛出后的运动轨迹．部分运动轨迹如图丙所示．图中水平方向与竖直方向每小格的长度均为L ，1P 、2P 和3P 是轨迹图线上的3个点，1P 和2P 、2P 和3P 之间的水平距离相等．重力加速度为g ．可求出小球从1P 运动到2P 所用的时间为__________，小球抛出时的水平速度为__________．【答案】（1）B (2)C (3)【解析】（1）研究平抛运动的实验很关键的地方是要保证小球能够水平飞出，只有水平飞出时，才能确保做平抛运动，故ACD 错误，B 正确．（2）因为平抛运动在竖直方向上做自由落体运动，下落的速度越来越快，则下落相等位移的时间越来越短，水平向上做匀速直线运动，所以2132x x x x ->-，因为平抛运动的过程中，只有重力做功，所以机械能定恒，123E E E ∆=∆=∆，故C 正确，ABD 错误．（3）因两段对应的水平距离相等，故两段运动的时间相等，而竖直位移分别为：3l 和5l ，故在竖直方向由2h gt ∆=，可得v =3L v t ==． 三、论述计算题．本题共4小题，共38分，解答时写出必要的文字说明、公式或表达式．有数值计算的题，答案必须明确写出数值和单位．20．（8分）质量为60kg 的人，站在升降机中的体重计上，升降机做下列各种运动时，体重计的读数是多少？（取210m/s g =） （1）升降机匀速上升．（2）升降机以24m/s 的加速度加速上升．（3）升降机以25m/s 的加速度加速下降．【答案】（1）600N (2)840N （2）300N【解析】（1）升降机匀速上升时，体重计的读数1600N F G mg ===．（2）当升降机以24m/s 的加速度匀速上升时，以人为研究对象，根据牛顿第二定律得2F mg ma ==，代入计算得出2840N F =，再牛顿第三定律得到人对体重计的压力大小等于2840N F =，概体重计的读数为840N ．（3）当升降机以25m/s 的加速度匀加速下降时，以人为研窗台地象，根据牛顿第二定律得33mg F mg -=，代入计算得出3300N F =，再牛三定律得到体重计的读数为300N ． 21．（8分）滑雪者及滑雪板总质量75kg m =，以0 2.0m/s v =的初速度沿山坡匀加速滑下，山坡的倾角30θ=︒，在 5.0s t =的时间内滑下的距离60m x =．设阻力的大小不变，重力加速度g 取210m/s ，求：（1）滑雪人下滑加速度的大小． （2）滑雪板及人受到的阻力的大小． 【答案】（1）24m/s（2）75N【解析】（1）以初速度为正方向，已知初速度、时间、位移，由运动位移公式2012x v t at =+，21602552a =⨯+⨯⨯，计算得出24m/s a =．（2）由牛顿第二定律：sin mg f ma θ-=，175107542f ⨯⨯-=⨯．计算得出：75N F =． 22．（8分）图为某景观喷泉的喷射装置截面图如图所示．它由竖直进水管和均匀分布在同一水平面上的多个喷嘴组成，喷嘴与进水管中心的距离均为0.6m r =，离水面的高度 3.2m h =．水泵位于进水管口处，启动后，水泵从水池吸水，并将水压到喷嘴处向水平方向喷出，水在水池面上的落点与进水管中心的水平距离为 2.2m R =．水泵的效率为80%η=，水泵出水口在1s 内通过的水的质量为010kg m =，重力加速度g 取210m/s ，忽略水在管道和空中运动时的机械能损失．求：（1）水从喷嘴喷出时速度的大小v ． （2）水泵输出的功率P ． （3）水泵的电功率P 电．【答案】（1）2m/s （2）340W （3）425W【解析】（1）水从喷嘴水平喷出，做平抛运动，R r vt -=，212h gt =，得：2m/s v =． （2）水泵对外做功，转化为水的机械能，水泵的输出功率：20012P m gh m v =-，得：340W P =．（3）根据p P η=电，则水泵的电功率是425W P =电． 23．（12分）2016年10月19日，我国发射的“神舟十一号”载人飞船与“天宫二号”空间实验室成功实现交会对接．随后，航天员景海鹏、陈冬先后进入“天宫二号”空间实验室，开启30天的太空生活，将在舱内按计划开展相关空间科学实验和技术试验．假设对接前“天宫二号”与“神舟十一号”在同一轨道围绕地球做匀速圆周运动，轨道距地面高度为h ，如图所示．已知地球的质量为M ，地球的半径为R ，引力常量为G ． （1）求“天宫二号”在轨道上做圆周运动的线速度大小v ．（2）若“神舟十一号”在图示位置，欲与前方的“天宫二号”对接，只通过向后方喷气能否实现成功对接？请说明理由．（3）在牛顿力学体系中，当两个质量分别为1m 、2m 的质点相距为r 时具有的势能，称为引力势能，其大小为12p Gm m E r=-（规定无穷远处势能为零）．试证明“天宫二号”的机械能与1R h-+成正比．（R h +为“天宫二号”圆周运动的轨道半径）【答案】（1（2）见解析 （3）见解析 【解析】（1）设“天宫二号”的质量为m ，万有引力提供圆周运动的向心力：22()Mm v G m R h R h =++，得：v = （2）不能实现对接．“神舟十一号”向后喷气，速度增大，所需的向心力也增大，此时的万有引力不是以提供“神舟十号”所需的向心力，飞船将做离心运动，到离地球更远的抛道上运动． （3）设“天宫二号”的质量为m ，其轨道半径为R r +，“天宫二号”的功能：2k 122()GMmE mv R r ==+，“天宫二号”的势能：p GMmE R r=+， “天宫二号”的机械能：k p 2()GMmE E E R r =+=+机，所以：1E R r∞-+机，由此得证．。
2017-2018学年高一物理上学期第一次月考试题 (IV)
2017-2018学年高一物理上学期第一次月考试题 (IV)一、选择题(本大题共10小题，其中第1-6为单选，7-10为多选，共50分)1.下列说法正确的是（）A.在苹果园摘苹果，找成熟的大的苹果，可将苹果视为质点B.导弹将目标锁定敌舰的要害，如弹药舱，可将敌舰视为质点C.计算飞机在两地间的往返时间，可将飞机视为质点D.设计月球车在月球表面抓月球土壤的动作，可将月球车视为质点2.以下说法正确的是（）A.某时刻物体的速度为零，其一定处于静止状态B.物体速度变化量为负值时，它的加速度可能为正值C.物体速度变化很快，其加速度一定很大D.物体加速度的大小不断变小，则速度大小也不断变小3.一辆汽车以速度v匀速行驶了全程的一半，以行驶了另一半，则全程的平均速度为（）A. B. C. D.4.甲、乙两物体从同一点出发且在同一条直线上运动，它们的位移-时间（x-t）图象如图所示，由图象可以得出在0-4s内（）A.甲、乙两物体始终同向运动B.4s时甲、乙两物体间的距离最大C.甲的平均速度等于乙的平均速度D.甲、乙两物体间的最大距离为6m5.以10m/s的速度沿平直公路行驶的汽车，遇障碍物刹车后获得大小为a=4m/s2的加速度，刹车后第3s内，汽车走过的路程为（）A.12.5mB.2mC.10mD.0.5m6.一物体以2m/s的初速度做匀加速直线运动，4s内位移为16m，则（）A.物体的加速度为2m/s2B.4s内的平均速度为6m/sC.4s末的瞬时速度为6m/sD.第2s内的位移为6m7.xx年3月29日，中国女子冰壶队首次夺得世界冠军，如图所示，一冰壶以速度v垂直进入三个矩形区域做匀减速运动，且刚要离开第三个矩形区域时速度恰好为零，则冰壶依次进入每个矩形区域时的速度之比和穿过每个矩形区域所用的时间之比分别是（）A.v1：v2：v3=：：1B.v1：v2：v3=6：3：2C.t1：t2：t3=1：：D.t1：t2：t3=（-）：（-1）：18.一质点在连续的6s内作匀加速直线运动，在第一个2s内位移为12m，最后一个2s内位移为36m，则下面说法正确的是（）A.质点的加速度大小是6m/s2B.质点的加速度大小是3m/s2C.第1s末的速度大小是6m/sD.第1s末的速度大小是8m/s9.质点做直线运动的位移x与时间t的关系为x=5t+t2（各物理量均采用国际单位制单位），则该质点（）A.第1s内的位移是5mB.第2s末的速度是9m/sC.任意相邻的2s内位移差都是8mD.任意1s内的速度增量都是1m/s10.甲、乙两质点从同一位置出发，沿同一直线路面运动，它们的v-t图象如图所示．对这两质点在0～3s内运动的描述，下列说法正确的是（）A.t=2s时，甲、乙两质点相遇B.在甲、乙两质点相遇前，t=1s时，甲、乙两质点相距最远C.甲质点的加速度比乙质点的加速度小D.t=3s时，乙质点在甲质点的前面二、实验题(共16分)11.如图所示，是某同学在做“研究匀加速直线运动”的实验中得到的纸带，在纸带上选取了A、B、C、D、E等5个计数点，每相邻两个计数点之间还有4个点没画出来，其相邻点间距离如图所示．（1）打点计时器从打下A点到打下C点的时间内，小车的平均速度是 ______ m/s（小数点后保留两位有效数字），这条纸带的 ______ （左或右）端与小车相连．（2）两计数点间的时间间隔着用T表示，则小车运动的加速度的计算式a= ______ （逐差法，用s和T表示）．其大小为 ______ m/s2（小数点后保留两位有效数字）．三、计算题(本大题共3小题，共34分)12.（10分）一辆汽车从O点由静止开始做匀加速直线运动，已知在2S内经过相距24m的A和B两点，汽车经过A点时的速度为10m/s，如图所示，求：（1）汽车的加速度．（2）A点与出发点O间的距离．13.（12分）从斜面上某一位置每隔0.1s释放一个相同的小球，在连续释放几个小球之后，对斜面上运动的小球拍下照片如图所示，测得AB=20cm，CD=30cm，试求：（1）小球沿斜面下滑的加速度多大？（2）拍摄时C球的速度多大？14.（12分）公路边随处可见“保持车距，注意刹车”警示语，这是因为在日常行车中，如果前后两车车距太小，容易发生追尾事故．下面我们来研究一下相关问题：A、B两车在同一直线上同方向做匀速直线运动，B车在前A车在后，速度分别为v B=15m/s，v A=20m/s．A车做匀减速直线运动时能获得的最大加速度是a m=0.5m/s2，为避免A，B相撞，请问A车至少应在离B车多远时开始以最大加速度减速，才能保证两车安全？高一物理第一次月考答案1.C2.C3.B4.C5.D6.C7.AD8.BC9.BC 10.BCD11.0.40；左；；0.8012.解：（1）汽车从A到B，根据位移公式有代入数据：解得：（2）汽车从O点到A点，根据速度位移公式有代入数据：答：（1）汽车的加速度为．（2）A点与出发点O间的距离为25m13.解：小球释放后做匀加速直线运动，且每相邻的两个小球的时间间隔相等，均为0.1 s，可以认为A、B、C、D是一个小球在不同时刻的位置．（1）BC-AB=CD-BC，BC-20=30-BC，解得BC=25cm相邻相等时间位移差为△x=5cm由推论△x=a T2可知，小球加速度为a==m/s2=5 m/s2．（2）由题意知B点对应AC段的中间时刻，可知B点的速度等于AC段上的平均速度，即v C=═m/s=2.75 m/s．答：（1）小球沿斜面下滑的加速度为（2）拍摄时C球的速度为2.75m/s14.解：设经过时间t，两车速度相等，有：v A-a m t=v B即：20-0.5t=15解得t=10s设两车最小间距为△x，有：△x=v A t-a m t2-v B t=（20×10-×0.5×102）-15×10=25m即A车至少应在离B车25m时开始以最大加速度减速．答：A车至少应在离B车25m时开始以最大加速度减速，才能保证两车安全．。
2017-2018上海嘉定一中高三英语教学质量调研(一)英语试题
2017-2018上海嘉定一中高三英语第一次月考第Ⅰ卷Ⅱ. Grammar and Vocabulary（共20分，每题1分）Section ADirections：After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Shanghai opened its first community fridge, with the aim of cutting food waste and helping residents in need. It is located on Puxiong Road, Putuo District.The fridge ___21___（house）in a community reading room for the elderly and can be used from 8:30 am to 11:30 am and 1:30 pm to 5 pm. The stock yesterday included boxes of milk, yogurt and pastries. The foods are supplied by two local supermarkets nearby, a restaurant and a food bank.___22___（co-launch）by Puxiong Community and Shanghai Oasis Public Service Development Center, the project was inspired by“solidarity fridges”in Spain, ___23___ residents and restaurants can drop off leftovers to curb food waste.However, ___24___（ensure）food safety and sourcing, the fridge in Puxiong Community so far only accepts food from certain institutions. Five volunteers take turns to be responsible for accepting food and cleaning the fridge.“I think this is a brilliant idea, and would be even better if it can spring up around the city,”a 79-year-old resident Zhu Guoxin told Shanghai Daily.“However, I hope in the future individual residents can also be able to put their leftovers or other edible snacks here. Just ___25___ the scheme in Spain.”26______ ______ the shared fridge, the community and Shanghai Oasis Public Service Development Center are also working on a food bank scheme ___27___（serve）low-income families as well as providing medical treatment in the community.“Packaged food that can be preserved for a long time will be put in food bank to serve residents most in need,”said Ella Zhang, the program director with the public service center, “___28___ cooked food or fresh food will be sent to the sharing fridge”. She said the Green Food Bank project first started in 2014 and operated from about 50 spots in Shanghai, with food supplied mainly by local farms, food manufactures, retailers and restaurants.“Now some five-star hotels ___29___（contact）us to share their leftovers too.”The project in Puxiong Community is sponsored by Changshou Funds of Changshou subdistrict government. If successful, the program will be spread to the ___30___ 34 communities in the subdistrict.Section BDirections：Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.Would you be happier if you spent more time discussing the state of the world and the meaning of life--- and less time talking about the weather?It may sound counterintuitive（违反直觉的）, but people who spend more of their day having deep discussions and less time engaging in small talk seem to be happier, said Matthias Mehl, a psychologist at the University of Arizona who published a study on the ___31___.“We found this so interesting, because it could have gone the other way — it could have been ‘Don't worry, be happy’ — as long as you surf on the ___32___ level of life you're happy, and if you go into the essential depths you'll be unhappy,” Dr. Mehl said.But, he ___33___, deep conversation seemed to hold the ___34___ to happiness for two main reasons: both because human beings are driven to find and create ___35___ in their lives, and because we are social animals who want and need to ___36___ with other people.“By engaging in meaningful conversations, we manage to impose meaning on a(n) ___37___ pretty messy world,”Dr. Mehl said.“And interpersonally, as you find this meaning, you bond with your interactive partner, and we know that interpersonal connection and integration is a core ___38___ foundation of happiness.”Dr. Mehl’s study was small and doesn’t ___39___ a cause-and-effect relationship between the kind of conversations one has and one’s happiness. But that’s the ___40___ next step, when he will ask people to increase the number of deep conversations they have each day and cut back on small talk, and vice versa.Ⅱ. Reading ComprehensionSection ADirections：For each blank in the following passages there are four words or phrases marked A, B, C, and D. Fill in each blank with the word or phrase that best fits the context.Robert Frank, an economist at Cornell, believes that his profession is restricting cooperation and generosity. In the U.S., economics professors give __41__ money to charity than professors in other fields. Economics students in Germany are more likely than those from other majors to recommend an overpriced plumber (水管工) when they are paid to do it. Economics majors tend to rate __42__ as “generally good,” “correct,” and “moral” more than their peers.Does studying economics change people? Maybe not. It could be self-selection: students who already believe in self-interest are __43__ to economics. But this doesn't exclude the possibility that studying economics pushes people further toward the selfish extreme. By spending time with like-minded people, economics students may become __44__ that selfishness is widespread and reasonable -- or at least that giving is rare and foolish.“As a business school professor, these effects worry me, as economics, __45__ every aspect of our lives, is taught widely in business schools, providing a __46__ for courses in management, finance, and accounting.” says Frank.If economics can __47__ pro-social behavior, which is central to the well-being of people or society, what should we do about it? A change in economics and business __48__ is suggested. Courses in behavioral economics, which considers the role of “social preferences” like __49__, fairness and cooperation, are required for students of economics major. In fact, economics courses not involving some behavioral economics are considered both an ___50___ education and a poor preparation to be a practising economist. Also, __51__ width, economics majors are required to take courses in social sciences like sociology and psychology, which place considerable emphasis on how people are __52__ about others, not only themselves. __53__, within economics courses, we should do a better job __54__ the principle of self-interest, which involves anything a person values -- including helping others.Not until then may the prophecy (预言) by Nobel Prize-winning economist and philosopher Amartya Sen be __55__. Calling economists “rational fools,” he observed: “The purely economic man is indeed close to being a social fool.”41. A. fewer B. less C. smaller D. more42. A. teamwork B. greed C. desire D. economics43. A. opposed B. entitled C. drawn D. attached44. A. convinced B. depressed C. relaxed D. doubtful45. A. depending on B. adapting to C. differing from D. relating to46. A. potential B. judgment C. foundation D. reason47. A. assess B. research C. discourage D. cause48. A. education B. standard C. approach D. application49. A. competition B. evaluation C. community D. generosity50. A. inaccessible B. informal C. inadequate D. insignificant51. A. in case of B. in terms of C. in relation to D. in need of52. A. concerned B. anxious C. curious D. enthusiastic53. A. However B. Therefore C. Furthermore D. Otherwise54. A. claiming B. defining C. overlooking D. recalling55. A. broken B. predicted C. challenged D. fulfilledSection BDirections：Read the following passages. Each passage is followed by several questions or unfinished statements. For each of them in passage A, B, and C. There are four choices marked A, B, C, and D. Choose the one that fits best according to the information given in the passage you have just read.（A）It was Saturday. As always, it was a busy one, for“Six days shall you labor and do all your work”was taken seriously back then. Outside, Father and Mr. Patrick next door were busy chopping firewood. Inside their own houses, Mother and Mrs. Patrick were engaged in spring cleaning.Somehow the boys had slipped away to the back lot with their kites. Now, even at the risk of having Brother caught to beat carpets, they had sent him to the kitchen for string (线). It seemed there was no limit to the heights to which kites would fly today.My mother looked at the sitting room, its furniture disordered for a thorough sweeping. Again she cast a look toward the window. “Come on, girls! Let’s take string to the boys and watch them.”On the way we met Mrs. Patrick, laughing guiltily as if she were doing something wrong, together with her girls.There never was such a day for flying kited! We played all our fresh string into the boys’ kites and they went up higher and higher. We could hardly distinguish the orange-colored spots of the kites. Now and then we slowly pulled one kite back, watching it dancing up and down it the wind, and finally bringing it down to earth, just for the joy of sending it up again.Even our fathers dropped their tools and joined us. Our mothers took their turn, laughing like schoolgirls. I think we were all beside ourselves. Parents forgot their duty and their dignity; children forgot their everyday fights and little jealousies. “Perhaps it’s like this in the kingdom of heaven,”I thought confusedly.It was growing dark before we all walked sleepily back to house. I suppose we had some sort of supper. I suppose there must have been a surface tidying-up, for the house on Sunday looked clean and orderly enough. The strange thing was, we didn’t mention that day afterward. I felt a little embarrassed. Surely none of the others had been as excited as I. I locked the memory up in that deepest part of me where we keep “the things that cannot be and yet they are.”The years went on, then one day I was hurrying about my kitchen in a city apartment, trying to get some work out of the way while my three-year-old insistently cried her desire to “go park, see duck.”“I can’t go!”I said. “I have this and this to do, and when I’m through I’ll be too tired to walk that far.”My mother, who was visiting us, looked up from the peas she was shelling, “It’s a wonderful day,” she offered, “really warm, yet there’s a fine breczc. Do you remember that day we flew kites?”I stopped in my dash between stove and sink. The looked door flew open and with it a rush of memories. “Come on.”I told my little girl. “You’re right, it’s too good a day to miss.”Another decade passed. We were in the aftermath (余波) of a great war. All evening we had been asking our returned soldier, the youngest Patrick Boy, about his experiences as a prisoner of war. He had talked freely, but now for a long time he had been silent. What was he thinking of – what dark and horrible things?“Say!” A smile slipped out from his lips. “Do you remember --- no, of course you wouldn’t. It probably didn’t make the impression on you as it did on me.”I hardly dared speak. “Remember what?”“I used to think of that day a lot in POW camp(战俘营), when things weren’t too good. Do you remember the day we flew the kites?”56. By“we were all besides ourselves,”the writer means that they all _____.A. felt confusedB. went wild with joyC. looked onD. forgot their fights57. What did the writer think after the kite-flying?A. The boys must have had more fun than the girls.B. They should have finished their work before playing.C. Her parents should spend more time with them.D. All the others must have forgotten that day.58. Why did the writer finally agree to take her little girl for an outing?A. She suddenly remembered her duty as a mother.B. She was reminded of the day they flew kites.C. She had finished her work in the kitchen.D. She thought it was a great day to play outside.59. The youngest Patrick Boy is mentioned to show that _____.A. the writer was not alone in treasuring her fond memoriesB. his experience in POW camp threw a shadow over his lifeC. childhood friendship means so much to the writerD. people like him really changed a lot after the war（B）A team of U.S. and Ethiopian scientists has discovered the fossilized（变为化石的）remains of what they believe is humankind’s first walking ancestor, a hominid（原始人）that lived in the wooded grasslands of the Horn of Africa nearly 4 million years ago.The bones were discovered in February at a new site called Mile, in the northern African region of Ethiopia. They are considered to be 3.8-4 million years old. The fossil include a complete tibia（胫骨）from the lower part of the leg, parts of a high-bone, ribs, vertebrae（脊椎）, a collar-bone, pelvis（骨盆）and a complete shoulder-blade. There also is an ankle bone which, with the tibia, proves they walked upright.The bones are the latest in a growing collection of early human ones that help explain the development history of man.“Right now we can say this is the world’s oldest bipedal---an animal walking on two feet and what makes this important is because what makes us human is walking upright,”Latimer said.“This new discovery will give us a picture of how our 4-million-year-old ancestors walked upright. It opens the door on a poorly known period and it will help us understand the early periods of human evolution（演化）before Lucy.”Paleontologists（古生物学家）before discovered in Ethiopia the remains of Ardipithecus-ramidus, a traditional part with important ape characteristics dating as far back as 4.5 million years but there is some argument over whether it walked upright on two legs. Scientists know little about A. ramidus. A few skeletal bones suggest it was even smaller than Australopithecus afarensis, the 3.2 million-year-old species known by the nearly complete“Lucy”fossil.Scientists are yet to classify the new find, which they believe falls between A. ramidus and A. afarensis. The fossil would help join the two parts. “It is a once in a lifetime find ,” latimer said.60. The passage mainly tells readers that ______.A. a bone was discovered in EthiopiaB. there is a once in a lifetime find in EthiopiaC. remains discovered in Ethiopia may be the oldest walking hominidD. human evolution before Lucy is completely known61. Which of the following can prove whether humans can walk upright?A. The thigh-bone and ribs.B. The ankle bones and tibia.C. The tibia and vertebrae.D. The pelvis and shoulder-blade.62. Which of the following shows the right order according to the timeline?（C）There was a time, not that long ago, when women were considered smart if they played dumb to get a man, and women who went to college were more interested in getting a“Mrs. Degree”than a bachelor’s. Even today, it’s not unusual for a woman to get whispered and unrequested counsel from her grandmother that an advanced degree could hurt her in the marriage market."There were so many misperceptions out there about education and marriage that I decided to sort out the facts," said economist Betsey Stevenson, an assistant professor at the Wharton School of the University of Pennsylvania. So along with Wharton colleague Adam Isen, Stevenson calculated national marriage data from 1950 to 2008 and found that the marriage penalty women once paid for being well educated has largely disappeared."In other words, the difference in marriage rates between those with college degrees and those without is very small," said Stephanie Coontz, a family historian at Evergreen State College. The new analysis also found that while high-school dropouts had the highest marriage rates in the 1950s, today college-educated women are more likely tomarry than those who don’t finish high school.Of course, expectations have changed dramatically in the last half century. "In the 1950s, a lot of women thought they needed to marry right away," Coontz said. "Real wages were rising so quickly that men in their 20s could afford to marry early. But they didn’t want a woman who was their equal. Men needed and wanted someone who knew less." In fact, she said, research published in 1946 documented that 40 percent of college women admitted to playing dumb on dates. "These days, few women feel the need to play down their intelligence or achievements," Coontz said.The new research has more good news for college grads. Stevenson said the data indicate that modern college-educated women are more likely to be married before age 40, are less likely to divorce, and are more likely to describe their marriages as "happy". The marriages of well-educated women tend to be more stable because the brides are usually older as well as wiser, Stevenson said.63. Not long ago, it was believed that women went to college in order to ___.A. find a husbandB. get smart in the marriage marketC. learn to be a good wifeD. marry someone with a bachelor’s degree64. According to the first paragraph, what grandmother whispers to her granddaughter is usually______.A. taken as a warningB. regarded as out-of-dateC. given voluntarilyD. accepted unwillingly65. What did Betsey Stevenson find about well-educated women in the past?A. Their marriage rate was higher than at present.B. Their marriage rate was lower than at present.C. Their divorce rate was higher than at present.D. Their divorce rate was lower than at present.66. The effect of education on marriage has been found to be _____.A. favorableB. insignificantC. long-lastingD. extensiveSection CDirections：Read the following passage and fill in each blank with the sentence that best fits the context. EachFigure skating as we know it got its start in the mid-19th century. At that time, an American named Jackson Haines combined dancing and skating for the first time. Americans did not accept Haines’ technique, so he moved to Vienna, Austria, where he was an immediate success. Some 50 years later, Haines’ style finally caught on in the United States.___67___ Events for pairs and singles first appeared at the London 1908 Summer Games. Ice dancing joined the Olympics in 1976, when the Games were held in Innsbruck, Austria.In single skating, each skater performs a short routine of required steps. ___68___ The pairs event follows the same format, but with one male and one female together.___69___ But unlike pairs skating, ice dance does not include overhead lifts and jumps. An ice dancecompetition is made up of three parts: one set to music that has a required rhythm and tempo, and two parts set to whatever music the ice dancers choose.A panel of nine judges scores the quality of each figure skating performance, but only seven out of nine scores are used. To determine which judges’ scores will be used, there is a random draw before each event. Skaters are given a grade for each step, jump, spin, or any other element that is part of their routine. They also receive an “overall”score for each performance. ___70___第Ⅱ 卷Ⅱ. TranslationDirecitons：Translate the following sentences into English, using the words given in the brackets.1. 夏天天气炎热，请避免长时间暴晒。
黑龙江省农垦北安管理局二中2018届高三9月月考地理试卷Word版含答案
读图2 “太阳辐射光谱示意图”完成 2-3题 3•孟买位于洛杉矶的 北安管理局第二高中 2017-2018学年度第一学期 地理第一次月考地理试卷 命题人：张峰 审题人：乔振宇 说明：1、试卷满分：100分。
2、只交答题卡，答案书写在答题卡指定区域；答在试卷上无效。
3、必须使用黑色 0.5签字笔答题，选择题用 2B 铅笔涂卡 、选择题（本部分试题均为单选题，每题 4分，共44分） 1. “生命宜居带”是指恒星周围适合生命存在的最佳区域。
在下图所示的“生命宜居 带”中，可能出现生命的主要影响因素是（ 4U A.温度条件 B .恒星质量 C .行星体积 D .大气成分 2. 在地球仪上, 经线和0 °纬线相比（ A. 两者等长 B. 经线稍长 C. 纬线约为 0° 经线的一半长 D. 经线约为 0° 纬线的一半长 完成下列问题。
读下面两幅区域图, 20-M A.西南方 .东南方 .东北方 .西北方。
高一数学第一次月考
县直高中2017-2018学年第一次月考高一数学试题一、选择题（本大题共12小题，每小题5分，共60分）1．集合{1，2，3}的真子集共有 （ ）A 、5个B 、6个C 、7个D 、8个2. 以下四个图形中可以作为函数()y f x =的图象的是 （ ）A ．B ．C ．D ．3.已知集合{}01|2=-=x x A ，则下列式子表示正确的有 （ ） ①A ∈1 ②{}A ∈-1 ③A ⊆φ ④{}A ⊆-1,1 A.1个 B.2个 C.3个 D.4个 4．图中的阴影表示的集合中是 （ ）A ．)(BC A u ⋂ B.)(A C B u ⋂ C ．)(B A C u ⋂D ．)(B A C u ⋃5.已知{}{}N M x y y N x y x M ⋂-==-==,1|,1|22等于 （ ） A.N B.M C.R D.φ6. 下列各组函数中为相等函数的是 （ ）ABUA ．1)(,)1()(2-=-=x x g x x fB ．1)(,1)(-=-=t t g x x gC ．11)(,1)(2-⋅+=-=x x x g x x f D ．21()1,()1x f x x g x x -=+=-7. 函数2)21()(0++-=x x x f 的定义域是 （ ） A ．)21,2(- B ．[)+∞-,2C ．),21()21,2[+∞⋃- D ．),21(+∞8.若集合{}{}260,10A x x x B x mx =+-==+=，且A B ⊆，则m 的取值所构成的集合为 （ ） A.{-31,21} B.{31,21-} C.{31,21--} D.{31,21,0-}9.若函数1)12(2+-+=x a x y 在区间（-∞，2）上是减函数，则实数a 的取值范围是 （ ）A. ⎪⎭⎫⎢⎣⎡+∞-,23B. ⎥⎦⎤ ⎝⎛-∞-23,C. ⎪⎭⎫⎢⎣⎡+∞,23D. ⎥⎦⎤ ⎝⎛∞-23,10. 定义在R 上的函数()f x 满足()()()2f x y f x f y xy +=++，()1 2.f =则=)3(f （ ）A.12B.3C.6D.16 11．给出函数)(),(x g x f 如下表，则f （g （x ））的值域为 （ ）A.{4,2}B.{1,3}C. {1,2,3,4}D. 以上情况都有可能12．设}4,3,2,1{=I , A 与B 是I 的子集, 若A ∩B =}3,1{,则称(A ,B )为一个“理想配集”.那么符合此条件的“理想配集”的个数是 (规定(A ,B )与(B ,A )是两个不同的“理想配集”) （ ） A. 4 B. 8 C. 9 D. 16二、填空题（本大题共4小题，每小题5分，共20分） 13．设全集{}4,3,2,1,0=U ，集合{} 3,2,1=A ,{}4,3,2=B ，则()=⋂B C A U ____.14.已知x x x f 2)12(2-=+，则=)3(f _____.15.若函数)(x f 的定义域为[－1，2]，则函数)23(x f -的定义域是 .16.已知集合⎭⎬⎫⎩⎨⎧=1,,a ba A ，集合{}0,,2b a a B +=，且B A ⊆同时A B ⊆,则=+b a 2________.三、解答题（本大题共6题，共70分） 17.（本题满分10分）设全集{}{}31|,24|,≤<-=<≤-==x x B x x A R U ，求： （1）B A B A ⋃⋂,;（2）)(,)(B C A B A C U U ⋂⋃.18.（本题满分12分）设集合{}{}01)1(2|,04|222=-+++==+=a x a x x B x x x A ，若A B A =⋃，求实数a 的取值集合.19.（本题满分12分）分别求下列函数的解析式： （1）已知()f x 是二次函数，且满足x x f x f f 2)()1(,1)0(=-+=，求()f x ; （2）已知23)1(2+-=-x x x f ，求()f x ;20.（本题满分12分） 求下列函数的值域. （1）[)5,1,642∈+-=x x x y . （2）112+-=x x y21．（本题满分12分）设函数xx f 32)(-=，（1）判断函数)(x f 在（0，+∞）上的单调性并用定义加以证明； （2）求函数)(x f 在区间[2,5]上的最大值与最小值.22.（本题满分12分）已知函数（1） 求)2(),3(f f -的值,并在给定的直角坐标系中画出函数)(x f 的图像;（2） 若21)(=a f ，求实数a 的取值集合;（3） 若m m f >)(，求实数m 的取值范围.⎪⎩⎪⎨⎧≥<<--≤+=)2()21()1(22)(2x x x x x x x f。
(全优试卷)版福建省高一下学期第一次联考(4月)数学试题Word版含答案
“永安一中、德化一中、漳平一中”三校联考2017—2018学年第二学期第一次月考高一数学试题（考试时间：120分钟总分：150分）本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分.第Ⅰ卷（选择题，共60分）一、选择题(本大题共12个小题，每小题5分，共60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）A.第一象限B. 第二象限C. 第三象限D. 第四象限2．半径为10 cm，面积为100cm2的扇形中，弧所对的圆心角为（）A．2弧度BC D．10弧度3．已知sin α－cos α＝－52，则tan α＋1tan α的值为()A．－4 B．4 C．－8D．84( )B.D.5则f(2 012)＝()A．12B．－12C．32D．－326．下列四个命题中正确的是（ ）AB.C.D.7）A ．2B ．2C ．4D ．48纵坐标不变)，再将图象向右( ) ABCD 9）10化曲线，若（ ）ABCD A B C D11( )A. B.C. D.12．下列结论中正确的个数有_________个．的一条对称轴；A．0 B．1 C．2 D．3第Ⅱ卷（共90分）二、填空题（每题5分，满分20分，将答案填在答题纸上）13.三点共线,的值为.14．若扇形的半径为R c，则这个扇形的最大面积为.15．已知函数f(x)＝sin(ωx＋φ)个最低点的距离为________________.16是．三、解答题（本大题共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．(本小题满分10分)（1（2. 18．(本小题满分12分)M、N分别是(1)(2)的值.19．(本小题满分12分)（1）用五点法画出它在一个周期内的闭区间上的图象；（2初相、对称轴；（3. 20．(本小题满分12分)（1（2）是单调增函数，求θ的取值范围．21．(本小题满分12分)(1)(2)(3)取值范围．22．(本小题满分12分)（1（2）（纵“永安一中、德化一中、漳平一中”三校联考2017—2018学年第二学期第一次月考高一数学试题参考答案一、选择题(本大题共12个小题，每小题5分，共60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.)1～5BACCD6～10DAAAC11～12DD二、填空题（每题5分，满分20分，将答案填在答题纸上）1314.16三、解答题（本大题共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.(本小题满分10分)sin2α+cos2α=1，cosα分(2)原式分18．(本小题满分12分)（1…………3分…………6分（2…………9分.…………12分19．(本小题满分12分)解：（1）列表…………………………4分(2)周期T振幅A＝3，即为对称轴；…………… 8分（32倍（纵坐标不变），得3倍（横坐标不变），得33的图象。
江苏省启东中学2018届高三上学期第一次月考(10月)英语试卷及答案
启东中学2018届高三上学期第一次月考英语试题第I卷选择题（共三部分，满分85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。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来问答有关小题和阅读下一小题。
每段对话仅读一遍。
1.Who was ill yesterday?A.LilyB.Lily’s motherC.Lily’s grandfather2.What does the boy want to do during his holiday?A.Go surfingB.Go hikingC.Go shopping3.Where are the speakers most probably?A.In a bookstoreB.In a libraryC.In a post office4.How will the man travel around?A.By subwayB.By carC.By bus5.What does the woman mean?A.The man should get up early.B.The man shouldn’t drop the class.C.The class is not difficult.第二节听下面5段对活或独白。
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，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6.What’s the relationship between the two speakers?A.Husband and wifeB.Brother and sisterC.Mother and son7.What will the woman do in the afternoon?A.Visit her parentsB.Make a phone callC.Do some shopping听第7段材料，回答第8至10题.8.When will the party be held?A.On FridayB.On SaturdayC.On Sunday9.Where will the speakers have lunch?A．At a club B.At a restaurant C.At a man’s house10.What will the woman get for her granddad?A. A hatB.Some CDsC.A suitcase听第8段材料，回答第11至13题。
2017年8月广东深圳福田区福田区实验学校高三第一次六校联考会考英语试卷-学生用卷
2017年8月广东深圳福田区福田区实验学校高三第一次六校联考会考英语试卷-学生用卷一、阅读理解1、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考第1~3题6分London is a huge city with more things to do than anywhere else. With the London Pass, you get free entry to over 50 specially selected places all for one purchase. Established in 1999, the London Pass is a sightseeing city card helping visitors make the most of their trip, saving them both time and money.The London Pass not only offers great value and convenience, but also enables you to cut through the long lines at selected major attractions.The London Pass comes with special offers such as discounts at restaurants and theatres. Where the attraction is normally free to the public, the London Pass gives you great offers such as a free guided tour. So whether you prefer museums or cinemas, galleries or go-karting, cathedrals or zoos, with the London Pass there really is something for everyone.The London Pass gives you a free 132-page guidebook so you can plan your visit before attractions helping you to enjoy the time you may have wasted queuing.The London City Pass will help you get around London with clear directions and local maps plus, and with the addition of a London Travel Card （available separately）, getting about will be made even easier.Your dated London Travel Card will be valid on all London's public transport—saving the trouble of queuing at the ticket office each day. There is no limit to the number of journeys you can make with your London Travel Card.Don't forget—with a longer dated London Pass, the more you see, the more you save!(1) Which of the following statements is TRUE about the London Pass?A. It allows you to take any London's public transport.B. I t enables you to enjoy fast track entry to buy tickets.C. It offers you free tour guides around London.D. It provides you with special offers in restaurants.(2) Which of the following situations provides a free guided tour?A. When you take a London Pass to major attractions.B. When you have become a member of the tour group.C. When you visit sights that require no admission fees.D. When you haven't used special offers in selected places.(3) What can you do with London Travel Card?A. Using if for as long as you wish.B. Taking as many journeys as you like.C. Getting a 132-page guidebook for free.D. Avoiding queuing at busiest attraction.2、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考（B篇）第4~7题8分2018~2019学年11月广东广州荔湾区广东实验中学高三上学期月考（B篇）第19~22题8分Since I was 4, I have wanted to do everything and anything—from softball to soccer to basketball to flag football. All that changed in my sixth grade year when I tried out for danceline; I had finally found my passion. I danced all my life, so I wasn't nervous for this tryout nor was it a problem for me.But as an eighth grader, at the end of the year, I walked into tryouts for Lincoln Danceline. I was scared to death walking into a big school. So many strange faces were staring at me as I walked into the gym. It was the most busy and emotional three-day tryout of my life. Our instructor put us through a hard workout.My freshman year showed me being on Danceline isn't as easy as it looked, but ITAL#NBSP prevailed. Our season ends in late, May and starts in mid-July with pre-Band Camp and Band Camp. Throughout that year, we participated in competitions, 10 parades and every fied show for foot ball season.Most importantly, we are also members of the Lincoln High School Concert Band, not to mention the 3-to-4-hour heavy practices we have every week. When we are getting ready for competition, the practices double.But all this work is worth it when we step on football field for the first football game, and see everyone in the stands. We forget how nervous we are. Seeing the little girls in the stands with their eyes glued to you, as you dance, saying they want to be just like you, makes everything worthwhile.When we have a bad performance, which sometimes we do, there are plenty of upset faces. We put our blood, sweat, and tears into dancing, and we love to hate it. Throughout the year, we 10 girls become like sisters. Like all sisters, we have our disagreements and quarrels.(1) When was the author addicted to dancing?A. When she was over ten years old.B. When she was about six years old.C. When she gave up playing football.D. When she joined Lincoln Danceline.(2) Why did the author feel nervous and afraid of her tryouts in Lincoln Danceline?A. Because her instructor was pushing her too hard.B. Because she was not well prepared for the tryouts.C. Because she had to start a new life in such a big school.D. Because she had to perform in front of unfamiliar faces.(3) What does the underlined word "prevailed" in Paragraph 3 mean?A. gave inB. made itC. got admittedD. became interested(4) Which of the following best describes the quality of the author?A. She is a girl with a variety of talents.B. She has the ability to attract audience.C. She is a girl who gets on well with others.D. She has the spirits of enduring hardships.3、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考（C篇）第8~11题8分2018~2019学年11月广东广州荔湾区广东实验中学高三上学期月考（B篇）第23~26题8分"It's a big hammer to crack a nut." This is how one angry parent described the recent crackdown（强制的）by London police on parents who drop their kids off at school by car. Yes, you read that correctly—the very mode of transportation that many American schools insist—the only safe way to deliver kids to school is now being criminalized in the United Kingdom.The decision to fine any vehicles seen dropping off or picking up kids within a particular zone of east London comes from city councilors'（议员）long-term efforts to make the area safer and less crowded.They say they've been trying for years "to encourage sensible driving and parking" , but in vain. Neighborhood residents complain frequently about their driveways being blocked by illegally parked cars for 15 minutes or more, often while they're trying to get to work, and the streets are long overcrowded.Now the rules have changed. Some parents are angry. Angie Baillieul is a mother who made the "big hammer" comment and says the crackdown is "way over the top." The nearest drop-off point for her six-year-old is now a five-minute walk from the school. Other are happy with the decision, severe though it may seem. Councilor Jason Frost said:"Traffic has significantly reduced, and more children are now walking to school, which is a great outcome. I would rather have complaints that we are slightly inconveniencing parents than hear that a child had been seriously injured because nothing was done.""I witness daily the chaos created by these in-town drivers, when I walk my own kids to school. There's a parking lot overflowing with vehicles and a slow-moving chain of cars moving in circles, many filling the air with harmful smokes. Meanwhile, the conversations around child over-weight and the importance of daily physical activity continue to stand out in schools."(1) Why is Angie Baillieul opposed to the new rule?A. She has adapted to the American practice.B. She has some doubts about its effectiveness.C. She thinks it adds inconvenience to her kid.D. She fears she will be fined by London police.(2) Why has the new rule been made according to Jason Frost?A. Due to massive complaints.B. Owing to safety concern.C. On account of air pollution.D. Because of heavy traffic jams.(3) What can be seen after the crackdown is carried out?A. Less daily chaos.B. Favor from all people.C. More over-weight kids.D. Complaints from neighbors.(4) What is the main idea of the passage?A. Parents attempt to resist a new school regulation.B. London police's crackdown causes widespread anger.C. British schools care much about students' safety.D. Different voices are heard on a new traffic policy.4、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考（D篇）第12~15题8分We would all like to increase our cognitive（认知的）ability beyond the limits set by Mother Nature. So it's no wonder that brain-training programs—which typically focus on training our working memory—are a multibillion-dollar industry. But can this kind of training really improve your intelligence?Cognitive training sees the brain as a kind of muscle that can be made stronger with the right kind of practice. It consists of tasks or games carried out on computers or smart phones. Despite much research, there has so far been no agreement about its effectiveness. Some think that cognitive training increase a broad range of cognitive abilities, while others less optimistic.Yet we do know that some cognitive skills, such as working memory and intelligence, tend to go together and are predictors of real-life such as work performance. Thus, training one cognitive skill might lead to an improvement in many other cognitive and non-cognitive skills. That is exactly the underlying hypothesis（假设的）on which working-memory training is based.To test this hypothesis, we examined all the studies about working-memory training we could find with normally developing children: 26 experiments and 1, 601 total participants. Children represent an ideal test group: during childhood, skills are still at the beginning of their development. Thus, cognitive training is more likely to succeed with children than adults.The results were very clear. Working-memory training did not show any effect on children's fluid intelligence—a person's ability to solve new problems and adapt to new situations. It didn't influence their academic achievement or other cognitive abilities, either. The only reliable effect was that children got better at what they trained to do. Nonetheless, the fact that participants got better at working-memory tasks does not necessarily mean that their working-memory ability increased. They may just have learnt how to perform that particular type of task.The results do indicate that the use of working-memory training programs as an educational tool is fruitless. However, the results must not discourage us from training our cognitive and non-cognitive skills. We just have to be aware of the actual limitations of such practice in areas outside what we are actually training. But that doesn't mean we shouldn't do it—the most efficient way to develop a skill is, after all, to train that skill.(1) What is the benefit of cognitive training according to the passage?A. It brings much profit to the training companies.B. It makes one's brain stronger through practice.C. It uncovers the secrets of how human brains work.D. It earns a good reputation for the training company.(2) How did the author find out the effects of working memory training?A. By conducting several scientific experiments.B. By comparing test groups of different ages.C. By reviewing the available previous researches.D. By interviewing normally developing children.(3) Which of the following shows the effects of the experiments on children?A. They tend to gain greater academic achievements.B. They are able to adapt to new situations more quickly.C. They can perform better in the field they are trained in.D. They are likely to succeed in dealing with real life problems.(4) What may be best title for the passage?A. Will Cognitive Training Enjoy Lasting Popularity?B. Can Working-memory Training Make You Smarter?C. Why Is Working-memory Training of Little Use?D. Would You Develop A Skill Through Cognitive Training?二、七选五5、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考第16~20题10分2018~2019学年江西南昌东湖区南昌市八一学校高二下学期期中八一中学、洪都中学、麻丘高中等七校联考第36~40题10分(每题2分)2018~2019学年11月广东广州荔湾区广东实验中学高三上学期月考第31~35题10分It's easy to talk yourself out of exercising. Even when you have the best intentions to work out, excuses are so easy to find—"I'm too tired." or "I'm busy." or "The weather is bad." Don'tworry!1·Take baby steps. You would never try to run 10 miles on day one, right? When you do too much too soon, you'll end up injured and discouraged. Take it easy as you get started. Maybe you only run a quarter of a mile your first week.2·Show the clock who is boss. Health experts say you should aim for at least 150 minutes of exercise a week plus weight training at least twice a week. If you work too late to get to a gym, keep a set of weight at home. If you can't do 30 minutes at once, break it up into 10-or-15-minute sections.·3Your workout should be just as much a habit as brushing your teeth or eating breakfast. When it's part of your routine, you won't even have to think about a few months, fitness can be the regular in your day.·Keep it real. You're not going to shake off 30 pound in a week.4For example, increase your workout schedule from 2 to 3 days a week, or exercise for 15 more minutes each time.·Celebrate!5Therefore even a pound of weight loss or a pound of muscle gain is reason to reward yourself. Go out with friends, or buy a new pair of jeans.A. Get used to it.B. Do it for yourself.C. It takes weeks to see real changes.D. Keep a fitness journal to record your progress.E. Aim for something that's realistic as a first step.F. The following tricks can keep your fitness routine on track.G. When it becomes easy for you, you can make it more challenging.三、完形填空6、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考第21~40题10分My parents grew up during the Depression（大萧条时期）attending small country churches. At the close of Christmas Eve services,1were called down front and each given abrown paper sack2an apple, an orange, nuts still in their shells and several chocolates.Decades later, whenever Dad recalled the paper sack with goodies, hiseyes3. At that time, it was really4to him. Gifts of any sort during the Depression were5, especially in large farm families with seven children or more.When we went home with our young children for Christmas one year, Mom and Dad gave each of the grandkids a6gift – a paper sack of fruits, nuts and chocolates. This was in addition to the pile of gifts under the7.After our 8-hour drive home, there was a8waiting on the phone when we walked in the door. "Your9kids left their apples and oranges in the back of our10. No more fruit for them!" Grandpa and Grandmawere11, of course, but still there was an elementof12in the kids leaving behind13chosen presents.We had apples and oranges at home. Our children had14known fruits could be so scare. They didn't15the gift because they hadnever16the need the gift was meant to meet.The same is17of Christmas today. We don't appreciate the true gift of the season18we don't understand the need the gift was given tomeet.19, we leave the gift of Christ to the back of the fridge. The true gift of the season is a perfect fit for our every need. When a gift like apples and oranges fits a need, there is a cheerful20.A. parentsB. churchmenC. childrenD. localsA. containingB. includingC. wrappingD. loadingA. turned upB. cleared upC. showed upD. lighted upA. nothingB. somethingC. everythingD. anythingA. commonB. affordableC. rareD. availableA. fashionableB. strangeC. specialD. valuelessA. tableB. treeC. sofaD. chairA. messageB. noteC. tipD. letterA. wiseB. cautiousC. unfaithfulD. ungratefulA. yardB. cupboardC. refrigeratorD. washerA. blamingB. criticizingC. threateningD. jokingA. pityB. disrespectC. neglectD. prideA. casuallyB. secretlyC. randomlyD. thoughtfullyA. hardlyB. alreadyC. alsoD. justA. shareB. appreciateC. give awayD. look forA. doubtedB. rememberedC. ignoredD. experiencedA. trueB. honestC. generousD. clearA. unlessB. sinceC. even thoughD. as ifA. ConsequentlyB. StrangelyC. SurprisinglyD. SimilarlyA. performanceB. rewardC. satisfactionD. achievement四、语法填空7、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考第41~50题15分2018~2019学年11月广东广州荔湾区广东实验中学高三上学期月考第56~65题15分Around the world, women usually played an unnoticeable part in history. They were often buried with their unknown talents and1(amaze) tales. Yet there are still some lucky ones2stories have been recorded. Li Qingzhao is one ofthem.3(praise) as the "No. 1 talented woman" , LiQingzhao,4poet from the Song Dynasty (960-1279), was born in Shandong Province.She was good at poetry, ink painting and calligraphy and5she was most well-known for was her poems, which6(classify) into two contrasting styles reflecting her life as a married woman and a widow. Her poems were7(main) about a carefree and happy life before her husband Zhao Mingcheng's8(die). The keynote turned into a tragic tune afterwards. Apart from expressing feelings and experiences of women, Li also wrote poems praising war9(hero) and criticizing the corruptand weak emperor and royals. One of her most famous poems is "Born as an outstanding soul, even die as a hero among spirits."As an example of female patriot, Li has a great effect10modern women literature.五、短文改错8、【来源】 2017年8月广东深圳福田区福田区实验学校高三会考第一次六校联考第51~60题10分2018~2019学年11月广东广州荔湾区广东实验中学高三上学期月考第76~85题20分假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文，作文中共有10处错误，每句中最多有两处。
河南省荥阳市第二高级中学2017届高三月考语文试题(解析版)
荥阳二高2017-2018学年上学期高一第一次月考语文试卷命题：汪延平时间：150分钟分值：150分注意事项：1．答卷前，考生务必将自己的姓名、班级、学号、座号填写在机读卡和答题卷密封线内指定位置上。
2．回答单项选择题时，选出每小题答案后，用铅笔把机读卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
答多选题和非选择题时，将答案写在答题卷上。
写在本试卷上无效。
3．考试结束后，将答题卷和机读卡一并交回。
一、现代文阅读(一)论述类文本阅读阅读下面的文字，完成小题。
当前，中国诗歌进入了缺乏创新激情的贫乏状态，摆脱不了平庸的纠缠，那些曾经让读者心动不已的追寻民族独特体验和表达人类普遍情感的具有独创性的艺术精品似乎与人们的日常生活渐行渐远，中国诗歌正难以避免地进入了缺乏艺术杰作的窘境。
造成当前中国诗歌创作难尽人意的原因是多方面的，而其中最关键的因素则是整个社会的文学审美意识的普遍弱化导致诗歌评价标准的缺失。
那么，究竟什么样的诗歌是好诗歌？好诗歌是对一个时代的现实生活状况的深度把握和对一个民族的内在精神追求的审美洞察，是从诗人的心灵深处自然流淌出来的真诚关爱。
诗人把握现实生活既不是对当下生活时尚的浮光掠影式的涉猎，也不是对自我生活趣味的低吟浅唱式的回味，而是要深入到普通民众的具体生活中，挖掘隐藏在日常生活表象下的精神潜流。
现实生活是文学创作的原点，诗人绝不是为了创作的目的才走进普通民众的生活里去，而是要以普通民众的生活作为出发点，深入到普通民众生活的底层。
如同秘鲁作家马里奥·略萨所说，作家的责任就是“要用想象力穿透生活”，用自己的艺术创造去“结构生活现实”。
一个时代的现实生活形态是复杂多样而又千差万别的，诗人对现实生活状况的把握绝不是在诗歌中表现琐碎的生活细节，而是要在涌动的生活潮流中追寻一个民族的内在精神走向，探求一个普通民众在日常生活中呈现出来的内在情绪。
好诗歌是对超越国界的人类精神的合理张扬和对跨越时空的人类永恒价值的诗意追问，是从诗人的精神底层逐渐升华出来的人性思索。
人教版高中数学或且非命题的真假判断
专题02 或且非命题的真假判断一、选择题1．【河北省邢台市2018届高三上学期第二次月考】已知()2xf x e ax =-.命题:p 对1a ∀≥， ()y f x =有三个零点，命题:q a R ∃∈，使得()0f x ≤恒成立. 则下列命题为真命题的是（ ）A . p q ∧B . ()()p q ⌝∧⌝C . ()p q ⌝∧D . ()p q ∧⌝【答案】B2．【北京市海淀首经贸2016-2017学年高二上学期期中】若命题“且”为假，且“”为假，则（ ）．A . 或为假B . 为假C . 为真D . 为假【答案】D 【解析】“”为假，则为真，又“且”为假，为真， 故为假， 故选．3．【北京市西城鲁迅中学2016-2017学年高二上学期期中】命题的值不超过，命题是无理数，则（ ）．A . 命题“”是假命题B . 命题“”是假命题C. 命题“”是假命题D. 命题“”是真命题【答案】B【解析】命题为假，，命题为真，是无理数，“”为真命题，“”为真命题，“”为假命题，“”为假命题．故选．点睛：若要判断一个含有逻辑联结词的命题的真假，需先判断构成这个命题的每个简单命题的真假，再依据“或”：一真即真，“且”：一假即假，“非”：真假相反，做出判断即可.以命题真假为依据求参数的取值范围时，首先要对两个简单命题进行化简，然后依据“p∨q”“p∧q”“非p”形式命题的真假，列出含有参数的不等式(组)求解即可.4．【北京西城13中2016-2017学年高二上期期中】已知互不重合的三个平面α，β，γ，命题p:若αβ⊥，则αγ；命题q:若α上不共线的三点到β的距离相等，⊥，γβ则αβ，下列结论中正确的是（）．A. 命题“p且q”为真B. 命题“p或q⌝”为假C. 命题“p或q”为假D. 命题“p且q⌝”为假【答案】C5．【甘肃省会宁县第一中学2018届高三上学期第二次月考】已知命题，命题，若命题“”是真命题，则实数的取值范围是（ ）A .B .C .D .【答案】A 【解析】命题，只需; 命题，有，解得或.若命题“”是真命题，则命题和命题均为真命题， 有或.故选A .点睛：若要判断一个含有逻辑联结词的命题的真假，需先判断构成这个命题的每个简单命题的真假，再依据“或”：一真即真，“且”：一假即假，“非”：真假相反，做出判断即可. 函数的恒成立问题通常是转为找函数的最值来处理，二次方程的根的问题通常是转化为研究判别式和0的关系.6．【广东省东莞外国语学校2018届高三第一次月考】已知命题p ： x R ∃∈， 5cos 4x =；命题q ： 2,10x R x x ∀∈-+>.则下列结论正确的是（ ）A . 命题p q ∧是真命题B . 命题p q ∧⌝是真命题C . 命题p q ⌝∧是真命题D . 命题p q ⌝∨⌝是假命题【答案】C7．【齐鲁名校教科研协作体山东、湖北部分重点中学2018届高三第一次调研联考】已知命题000:,0,xp x R e mx ∃∈-= 2:,10,q x R mx mx ∀∈++>若()p q ∨⌝为假命题，则实数m 的取值范围是A . ()(),04,-∞⋃+∞B . []0,4C . [)0,eD . ()0,e【答案】C【解析】由()p q ∨⌝为假命题可得p 假q 真，若p 为假，则x e mx =无解，可得0m e ≤<； 若q 为真则04m ≤<，所以答案为C8．【吉林省扶余市第一中学2017-2018学年高二上学期第一次月考】已知命题p ：存在实数m 使10m +≤；命题q ：对任意x R ∈都有210x mx ++>，若“”为假命题，则实数m 的取值范围为（ ）．A . (],2-∞-B . [)2,+∞C . (](),21,-∞-⋃-+∞D . []2,2-【答案】B【解析】化简条件p ： 1m ≤-，q ： 24022m m ∆=-<⇒-<<，∵ p q ∨为假命题， ∴ p ,q 都是假命题，所以1{ 22m m m >-≤-≥或，解得2m ≥，故选B .二、填空题9．【北京西城13中2016-2017学年高二上期期中】若命题:2p x =且3y =，则p ⌝为__________．【答案】2x ≠或3y ≠【解析】p 且q 的否定为p ⌝或q ⌝，所以“2x =且3y =”的否定为“2x ≠或3y ≠”，故答案为2x ≠或 3.y ≠10．【2016-2017盐城市第一中学高二上期末】命题“∃x ∈R ，x 2＋2ax ＋a ≤0”是假命题，则实数a 的取值范围为________． 【答案】01a <<【解析】因为命题“∃x ∈R ，x 2＋2ax ＋a ≤0”是假命题 所以0∆<，即()224a 0a -<，解得： 01a <<故答案为： 01a <<11．已知命题p ：关于x 的不等式1(0,1)xa a a >>≠ 的解集是{}0x x ，命题q ：函数()2lg y ax x a =-+ 的定义域为R ，如果p ∨q 为真命题，p ∧q 为假命题，则实数a 的取值范围为________________． 【答案】(1,12)12．【黑龙江省齐齐哈尔市第八中学2017-2018学年高二9月月考】已知，如果是假命题，是真命题，则实数的取值范围是_______________．【答案】【解析】是假命题，，解得，由是真命题，，解得，实数的取值范围是，故答案为.三、解答题13．【江西省赣州市南康区第三中学2018届高三第三次大考】已知命题：方程有两个不相等的负实根，命题：恒成立；若或为真，且为假，求实数的取值范围． 【答案】或.【解析】试题分析：遇到若或为真，且为假的条件时，先求出两个命题是真命题时的参量范围，然后分类讨论求出结果。
2017-2018学年高中数学专题03破译三角函数图像变换问题特色专题训练新人教A版必修4
12专题03破译三角函数图像变换问题、单选题1.【湖北省咸宁市2018届高三重点高中11月联考】若函数f x =cos2x ， g x ]=sin j 2x -石【答案】【解析】/(+COS 2JC :+sin I 2x —— =cos2x4JT曲线 严 列乂）向左平移壬个单位长度后的解折式为:6本题选择E 选项.2•【山西省芮城中学 2018届高三期中】函数 f （x ） = Asin （G0x + W ）（其中A A O ，申 <:丄）的图象过点2,0 ,—, -1，如图所示，为了得到 g x ；=cos2x 的图象，则只要将 f x 的图象（）312曲线B .曲线y 二g x 向左平移 C .曲线 y = f x 向右平移 D .曲线 丄个单位长度后得到曲线6■JT个单位长度后得到曲线6—个单位长度后得到曲线12—个单位长度后得到曲线126丿即/(x )+^(x) =A. 向右平移二个单位长度6B. 向右平移个单位长度1233【答案】D+ 卩= --- 2A H (A:E Z) — +2lac(k e Z) 23It和八、 .K-(P — — > J (x) = SID I 2x4-—C.向左平移'个单位长度 6D.向左平移个单位长度12【解析】12 3TSJD3it71 1C — cos2x — sin 2无+—2 3二肚2 "12点睛：已知函数 y=Asi nicx 」‘LB （A -0,八＞0）的图象求解析式 (1)y max — y min y max yminA, B =一 2由函数的周期T 求co ,T = 利用“五点法”中相对应的特殊点求:.【广东省执信中学 2017-2018学年高二上学期期中】将函数 y=Sin j 2x ' 的图象向右平移 一个单位2长度，所得图象对应的函数■: 7 二■: 7 二A 在区间［,］上单调递减B 在区间［,］上单调递增12 12 12 12J ［ JEJ ［ J ［C.在区间^-,-］上单调递减D在区间［wy 上单调递增【答案】B兀【解析】将函数向右平移个单位长度得:((y =sin 2 x 一一J T(二 sin I 2x- 3 ，所以当7 2 二二二时，2x ，—12 3IL 2 24 •【陕西省西安市长安区2018届高三上学期质量检测】把函数.的图象上个点的横坐标缩短到原61 TI来的（纵坐标不变），再将图象向右平移个单位，那么所得图象的一个对称中心为23A B.c D (%)4【答案】D【解析】根据题意函数尸血时勺）的图象上个点的横坐标缩短到原来的k纵坐标不知，可得厂血伍昇6 2I创再将團象向右平移*单位，可得：V J sin|2 （x）+ -] = sin —）- ~cos2x^3 3 6 22K ■- + kn*2可得：x«- + -kn, kE疋"4 2当k・0时，可得对称中点为（：0）.4故选ZZf x二cosi2x • 的图象，只需将函数I 6丿g x 二sin2x 的图象（）A向左平移一个单位6C. 向左平移二个单位3【答案】A B向右平移一个单位6D向右平移少个单位3，所以函数单调递增，故选 B.125.【山东省莱芜市2018届高三上学期期中】要得到函数f x i = sin 「x ■ ' （其中）的图象如图2所示，为了得到 y 二cos 「x 的图象，只需把 y 二f x 的图象上所有点（）【解析】g x 二 sin2x =cos所以向左平移n 二26 个单位，选A2 66 •【辽宁省沈阳市交联体2018届高三上学期期中】函数C.向左平移二个单位长度6【答案】AT 7 7T更jr 【解析】根据函数的^m-=—4 122九"所以：T^JL9<D=——=2>当沪彳时，函数fyr jr即：/ ( —) =sin (2x — +<p) =0.解得所以:f (x) =sin( 2x+ —).要得到y=cos2x的图象只需将函数 f (x) =sin(2x< )向左平移.个单位长度,3 12n 兀即y=sin (2x+ + ) =cos2x.6 3故选：A.点睛：已知函数y=Asi n[cx」‘LB(A 0^ 0)的图象求解析式(1 )2■:人=涯沁，ymin.(2)由函数的周期T求,T =2 2 ⑷利用“五点法”中相对应的特殊点求:.【豫西南部分示范性高中2017-2018年高三年级第一学期联考】已知函数f X =sin 2x，为得到B.向右平移.个单位长度12D.向右平移二个单位长度6A向左平移.个单位长度123A 向左平移二个单位长度 B.向左平移.个单位长度612C.向右平移二个单位长度D.向右平移二个单位长度612【答案】A【解析】函数 g x 二 cosi2x sin ；2xsin 12x —• I 6丿 126丿 J 3丿函数f （x ）=s in ”2x +工1= sin |2 " x +丄1+》=sin " 2x +2兀】=g （ x ），是向左平移了工个单位长 2 V 3丿 [16丿3 一 V 3丿“丿 6度。
浙江省杭州市高三技术第一次月考试题
浙江省杭州市2017-2018学年高三技术第一次月考试题第一部分信息技术(共50分)一、选择题（本大题共12小题，每小题2分，共24分。
在每小题给出的四个选项中，只有一个符合题目要求）1.在用户与WEB服务器之间文件传输的过程中，使用的协议是（）A.FTPB.HTTPC.POP3D.SMTP2.使用Access软件创建的“student”数据表，部分界面如图所示。
下列说法正确的是（）A．该数据表名称是“student”，共有6条记录B．“ID”字段的值一定是不相同的且不能为空值C．“身份证”字段的类型也可设置成“数字”型D．在数据表视图下，可在“班级”字段输入“1班”3.使用UltraEdit软件观察字符“Good Luck！”的内码，部分界面如图所示。
下列说法正确的是（）A．字符“！”是ASCII字符，其内码是A1B．字符“Good Luck！”共占用10个字节C．字符“g”内码用二进制表示是01100111D．字符“o”内码转十进制过程应为6×162+15×1614. 在VB代码编辑窗口中，输入“List1.”后出现了如下图所示的信息。
其中的“AddItem”是List1的（）A.属性名B.事件名C.对象名D.方法5. 小明用GoldWave软件截取一段背景音乐如下图所示，当前选定部分的音频长度为（）A ．1:29.816B ．29.656C ．3:37.339D ．1:59.4736.某商品团购优惠策略的流程图如图所示当n 为100、p 为10时，实付金额s 的值是（ ）A. 1000B. 950C. 850D.7507. 小明用Photoshop 制作作品过程中图层面板如下图所示，设置了滤镜的图层名称是（ ）A ．苹果B ．文字C ．树D ．背景开始输入商品数量n ，商品单价p n<50?n<100?s ←p*n*85%s ←p*n*75%s ←p*n*95%输出s 结束YN8.将数学表达式2||y x x 写成VB 表达式正确的是（ ） A.（y – Int （x ））/x*x B.（y – Abs （x ））/x^2 C.（y – Int （x ））/x^2 D.（y – Abs （x ））/ x*x 9.某Flash 作品的部分时间轴界面如第9题图所示。
【月考试卷】湖北省八校2018届高三上学期第一次联考试题(12月)语文Word版含答案
鄂南高中华师一附中黄冈中学黄石二中荆州中学孝感高中襄阳四中襄阳五中2018届高三第一次联考语文试题本试卷共10页，22题。
全卷满分150，考试用时150分钟。
★祝考试顺利★注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在试卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
2．选择题的作答：每小题选出答案后，用2B铅笔把答题卡对应题目的答案标号涂黑。
写在试卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用黑色签字笔直接答在答题卡上对应的答题区域内。
写在试卷、草稿纸和答题卡上的非答题区域均无效。
4．考试结束后，请将本试卷和答题卡一并上交。
一、现代文阅读（35分）（一）论述类文本阅读（本题共3小题，9分）阅读下面的文字，完成1～3题。
隋废九品中正，设进士、明经二科取士。
唐承隋制，并增设明法、明字、明算诸科，而以进士、明经二科为主。
进士科重文辞，明经科重经术。
唐高宗、武则天以后，进士科最为社会所重，参加进士科考试被认为是致身通显的重要途径。
进士科以考诗赋为主，此外还考时务策等。
唐代取士由地方举送中央考试，称为乡贡。
被举送应试的人通称为举人。
唐人常说“举进士”，例如韩愈《讳辩》说“愈与李贺书，劝贺举进士”，意思是应举参加进士科的考试，这种人在唐代就称为进士。
韩愈《送孟秀才序》说“京师之进士以千数，其人靡所不有”，就是指当时应举参加进士科考试的人说的。
唐初设有秀才科，不久即废，但是唐人后来仍通称应进士科考试的人为秀才。
唐代中央主持科举考试的机关是礼部，考官通常由礼部侍郎担任，称为知贡举。
唐人进士及第第一名称为状头或状元。
同榜的人在长安慈恩寺雁塔题名，称为题名会。
宴会于曲江边的亭子内，称为曲江会。
又遍游名园，以同榜少年二人为“探花使”，探采名花。
唐人进士及第后尚未授官称为前进士，还要参加吏部“博学宏词”或“拔萃”的考选，取中后才授予官职。
韩愈《柳子厚墓志铭》说，柳宗元“虽少年，已自成人，能取进士第”，“其后以博学宏辞，授集贤殿正字”。
高考物理考点 碳酸钠和碳酸氢钠的性质(原卷版)
考点 碳酸钠和碳酸氢钠的性质1．[2019天津] 下列有关金属及其化合物的应用不合理．．．的是 A ．将废铁屑加入2FeCl 溶液中，可用于除去工业废气中的2Cl B ．铝中添加适量锂，制得低密度、高强度的铝合金，可用于航空工业 C ．盐碱地（含较多23Na CO 等）不利于作物生长，可施加熟石灰进行改良 D ．无水2CoCl 呈蓝色，吸水会变为粉红色，可用于判断变色硅胶是否吸水 2．[2019江苏] 在给定条件下，下列选项所示的物质间转化均能实现的是A ．NaCl(aq)−−−→电解Cl 2(g)Fe(s)−−−→△FeCl 2(s) B ．MgCl 2(aq)−−−→石灰乳Mg(OH)2(s)−−−→煅烧MgO (s)C ．S(s)2O (g)−−−→点燃SO 3(g)2H O(l)−−−→H 2SO 4(aq) D ．N 2(g)2H (g)−−−−−−→高温高压、催化剂NH 3(g)2CO (g)aq)−−−−→N aCl (Na 2CO 3(s) 3．[2018江苏卷]在给定条件下，下列选项所示的物质间转化均能实现的是 A ． B ． C ．D ．4．（2018课标III ）化学与生活密切相关。
下列说法错误的是 A ． 泡沫灭火器可用于一般的起火，也适用于电器起火 B ． 疫苗一般应冷藏存放，以避免蛋白质变性C ． 家庭装修时用水性漆替代传统的油性漆，有利于健康及环境D ． 电热水器用镁棒防止内胆腐蚀，原理是牺牲阳极的阴极保护法首先要明确工业上是采用侯氏制碱法制取NaHCO 3，实验室是向饱和Na 2CO 3溶液中通入过量的CO 2。
碳酸钠和碳酸氢钠比较：名称碳酸钠碳酸氢钠化学式Na2CO3NaHCO3俗名纯碱、苏打小苏打主要性质色态白色固体粉末细小白色晶体水溶性易溶易溶，但比碳酸钠小热稳定性稳定不稳定与H＋反应CO32- + H + = CO2↑ + H2O慢H+ + HCO3- = CO2↑+ H2O快与碱反应Ca（OH）2Ca2+ + CO32- = CaCO3↓Ca（OH）2过量Ca2+ + OH- + HCO3- = CaCO3↓+ H2OCa（OH）2少量Ca2+ +2 OH-+2HCO3-=CaCO3↓+2H2O+ CO32-盐氯化钙Ca2+ + CO32- = CaCO3↓不反应硫酸铝2Al3+ + 3CO32-=3CO2↑+Al（OH）3Al3+ +3HCO3-=Al（OH）3↓+ 3CO2↑主要用途制玻璃，制皂，造纸，纺织发酵粉，制药，灭火剂相互转化1、考查碳酸钠和碳酸氢钠的溶解性典例1（天津市南开区2019届高三一模考试）下列有关物质性质的比较，结论正确的是A．碱性：LiOH<RbOHB．溶解度：Na2CO3<NaHCO3C．热稳定性：PH3<SiH4D．沸点：C2H5OH<C2H5SH2、考查碳酸钠和盐酸反应典例2（天津市河东区2019届高三下学期二模考试）下列过程没有．．明显现象的是A．加热NH4Cl固体B．向Al2(SO4)3溶液中滴加氨水C．向FeSO4溶液中通入NO2D．向稀Na2CO3溶液中滴加少量盐酸3、考查碳酸钠和碳酸氢钠的稳定性比较典例3（黑龙江省哈尔滨市第三中学2019届高三第三次模拟考试）巧妙的实验设计有助于更好的解决问题。
江苏省兴化市楚水实验学校、黄桥中学、口岸中学三校高三12月联考政治试题
2017-2018学年度第一学期高三年级12月份月考联考政治试题考试时间：100分钟卷面分值：120分一、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.摄影爱好者小王用信用卡透支购买了一台标价为12000元的进口单反相机，事后及时偿还了该消费贷款。
在这一过程中，货币执行的职能有A.价值尺度、支付手段和世界货币B.价值尺度、流通手段和支付手段C.流通手段、贮藏手段和支付手段D.流通手段、价值尺度和世界货币2.假设某国2016年每件A商品的价值用货币表示为12元。
2017年该国生产这种商品的行业生产率提高了20%，同时货币贬值了20%。
在其他条件不变的情况下，2017年每件A商品的价格为A.8元B.10元C.12元D.12.5元3.2017年10月23日，人民币对美元中间价为1：6.6185，而2016年10月23日为1：6.7654。
不考虑其他因素，下列对人民币币值变动趋势，推导合理的是A.人民币贬值→美元可以兑换更多人民币→中国对美国投资不断增加B.人民币升值→美元计价的商品价格降低→我国出口商品的数量增加C.人民币贬值→美国来华旅游的费用降低→利于我国旅游产业的发展D.人民币升值→美商对我国投资成本上升→影响我国吸收外国的资本4.下图是某新能源汽车的市场供给线，在市场经济的条件下，如果想曲线从S向S1移动，政府可以采取下列措施①对购买新能源汽车的消费者给予适当补贴②加大产品促销力度③启动传统汽车定产停售时间表④适当减免传统汽车生产企业的税负A.②③B.①③C.②④D.①④5.从2017年开始，央企混合所有制改革加速推进。
8月中旬，百度、阿里、腾讯等互联网巨头投入780亿人民币，成为中国联通的战略投资者。
这一改革可能导致的结果是①股权多元→组织结构优化→公司治理水平提高②增强国有资产控制力→巩固国有经济主体地位→完善基本经济制度③筹集大量资金→增强企业发展能力→增强资产盈利能力④管理多元→产业结构调整→拓展国有经济发展空间A.①④B.②③C.①③D.②④6. 斜杠青年是选择多重职业和多元化就业身份的年轻人，利用空闲时间培养一项新的能力，是开启未来职业发展的新通路。
2017-2018 学年.七中.高一下.第一次月考化学试卷及答案
2．能作为 Cl、Br、I 元素非金属性递变规律的判断依据的是（ ）
①Cl2、Br2、I2 的熔点
②Cl2、Br2、I2 的氧化性
③HCl、HBr、HI 的热稳定性
④HCl、HBr、HI 的酸性
A．①②③
B．②③
C．②③④
D．①②③④
器 3．下列各组物质中化学键的类型完全相同的是（ ）
A．NaCl MgCl2 Na2O
2017-2018 学年.七中.高一下.第一次月考.试卷及答案
一、选择题（共 16 小题，每小题 4 分，共 64 分）
1．中国科Lv
的名称为鉝。关于
293 116
Lv
的叙述错误的是
（）
A．原子序数 116
B．中子数 177
C．核外电子数 116
D．质 子 数 177
B．H2O
辑 C．Na2S NaOH H2SO4
D．NH4Cl
MgO CO2 NaNO3 NH3
4．下列分子的电子式书写正确的是（ ）
编 A．氨气
C．氮气
B．四氯化碳 D．二氧化碳
捷PDF 5．下列反应过程中的能量变化与如图一致的是（ ）
迅A． 2Al + Fe2O3 高温 2Fe + Al2O3 C． C + H2O 高温 CO + H2
B． CaCO3 高温 CaO + CO2 ↑ D． C + CO2 ∆ 2CO
6．关于碱金属元素的说法中正确的是（ ） A．ⅠA 族元素都是碱金属元素 B．碱金属单质可将铜从其盐溶液中置换出来 C．金属钾具有强还原性，K+具有强氧化性 D．Cs 常温下与水反应会发生爆炸
7．反应 3A(g) + B(g)=2C(g) + 2D(g) ，在不同条件下，用不同物质表示其反应速率，分别为 ①v(A) = 0.6mol ⋅ L−1 ⋅ min−1 ②v(B) = 0.45mol ⋅ L−1 ⋅ min−1 ③v(C) = 0.02mol ⋅ L−1 ⋅ min−1 ④v(D) = 0.45mol ⋅ L−1 ⋅ min−1
- 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)。
高三第一次月考试题
1.设集合2
{|2}A x x x =<，{|B x y ==，则A B = （ ） A ．(,1)-∞- B ．(,1)-∞ C ．(0,1] D ．(0,2) 2.若
21ai
b i i
+=++，则复数a bi +在复平面内表示的点所在的象限为（ ） A ．第一象限 B ．第二象限 C ．第三象限 D ．第四象限
3.从1,3,5,7这四个数中随机取出两个数组成一个两位数，则组成的两位数是5的倍数的概率是（ ） A ．
18 B ．16 C ．14 D ．12
4.等差数列{}n a 的公差0d ≠，且30a =，若k a 是6a 与6k a +的等比中项，则k =（ ） A ． 5 B ． 6 C. 9 D ．11
5.若函数()(sin )x
f x e x a =+在区间(,)22
ππ
-
上单调递增，则实数a 的取值范围是（ ）
A ．)+∞
B ．(1,)+∞ C. ()+∞ D ．[1,)+∞ 6.某次知识竞赛中，四个参赛小队的初始积分都是100分，在答题过程中，
各小组每答对1题都可以使可以使自己小队的积分增加5分，若答题过程中四个小队答对的题数分别是4道、7道、2道，则四个小组积分的方差为（ ） A ． 50 B ． 75.5 C. 112.5 D ．225
7.某个长方体被一个平面所截，得到的几何体的三视图如图所示，则这个几何体的体积为（ ）
A ． 4
B ．．8
8.执行如图的程序框图，如果输入的0.001t =，则输出的n =（ ） A ． 8 B ． 9 C. 10 D ．11 9.若()2cos(2)(0)f x x ϕϕ=+>的图像关于直线3
x π
=
对称，且当ϕ取最小值时，
0(0,)2
x π
∃∈，使得0()f x a =，则a 的取值范围是（ ）
A ．(1,2]-
B ．[2,1)-- C. (1,1)- D ．[2,1)-
10.已知F 是抛物线2
4x y =的焦点，P 为抛物线上的动点，且A 的坐标为(0,1)-，则
||
||PF PA 的最小值是（ ）A ．14 B ．12 D
11.函数sin cos y x x x =+的图像大致为（ ）
A ．
B ．
C. D ．
12.我国古代数学著作《九章算术》有如下问题：“今有金箠，长五尺，斩本一尺，重四斤，斩末一尺，重二斤，问次一尺各重几何？”意思是：“现有一根金杖，长5尺，一头粗，一头细，在粗的一端截下1尺，重4斤；在细的一端截下1尺，重2斤；问依次每一尺各重多少斤？”设该金杖由粗到细是均匀变化的，其重量为M ，现将该金杖截成长度相等的10段，记第i 段的重量为(1,2,,10)i a i = ，且1210a a a <<< ，
若485i a M =，则i =（ ）
A ． 4
B ． 5 C. 6 D ．7
二、填空题（每题5分，满分20分，将答案填在答题纸上）
13.已知向量(3,1)a = ，(1,3)b = ，(,7)c k = ，若()//a c b -
，则k = ．
14.若函数2log y x =的图像上存在点(,)x y ，满足约束条件30220x y x y y m +-≤⎧⎪
-+≥⎨⎪≥⎩，则实数m 的最大值为 ．
15.已知12,l l 分别为双曲线22
221(0,0)x y a b a b
-=>>的两条渐近线，且右焦点关于1l 的对称点在2l 上，则双
曲线的离心率为 ．
16.如图，某园林单位准备绿化一块直径为BC 的半圆形空地，ABC ∆外的地方种草，ABC ∆的内接正方形
PQRS 为一水池，其余的地方种花，若BC a =，ABC θ∠=，设ABC ∆的面
积为1S ，正方形PQRS 的面积为2S ，当a 固定，θ变化时，则1
2
S S 的最小值是 ．
17. 在ABC ∆中，角,,A B C 所对的边分别为,,a b c ，已知2tan tan 12cos C
A C
=-，1b =.
（1）求a 的值；
（2）若c =ABC ∆外接圆的面积.
18. 某工厂为了对新研发的产品进行合理定价，将该产品按事先拟定的价格进行试销，得到一组检测数据
(,)(1,2,,6)i i x y i = ，如下表所示：
已知变量,x y 具有线性负相关关系，且
6
1
39i
i x
==∑，6
1
480i i y ==∑，现有甲、乙、丙三位同学通过计算求得
其回归直线方程分别为：甲454y x =+；乙4106y x =-+；丙 4.2105y x =-+，其中有且仅有一位同学的计算结果是正确的.
（1）试判断谁的计算结果正确？并求出,a b 的值；
（2）若由线性回归方程得到的估计数据与检测数据的误差不超过1，则该检测数据是“理想数据”，现从检测数据中随机抽取2个，求这两个检测数据均为“理想数据”的概率.
19. 如图所示，菱形ABCD 与正三角形BCE 所在平面互相垂直，FD ⊥平面
ABCD ，且2AB =，FD .
（1）求证：//EF 平面ABCD ； （2）若3
CBA π
∠=
，求几何体EFABCD 的体积.
20. 已知椭圆C ：22221(0)x y a b a b +=>>的短轴长为，圆E 的圆心在椭圆C 上，半径
为2，直线1y k x =与直线2y k x =为圆E 的两条切线. （1）求椭圆C 的标准方程；
（2）试问：12k k *是否为定值？若是，求出该值；若不是，说明理由.
21. 已知函数3
2
5()2
f x x x ax b =+
++（,a b 为常数），其图像是曲线C . （1）设函数()f x 的导函数为'
()f x ，若存在三个实数0x ，使得00()f x x =与'0()0f x =同时成立，求实数b 的取值范围；
（2）已知点A 为曲线C 上的动点，在点A 处作曲线C 的切线1l 与曲线C 交于另一点B ，在点B 处作曲线C 的切线2l ，设切线12,l l 的斜率分别为12,k k ，问：是否存在常数λ，使得21k k λ=？若存在，求出λ的值；若不存在，请说明理由.
22.选修4-4：坐标系与参数方程 在平面直角坐标系xOy 中，1C ：(1)
x t
y k t =⎧⎨
=-⎩（t 为参数），以原点O 为极点，x 轴正半轴为极轴建立极坐
标系，已知曲线22:10cos 6sin 330C ρρθρθ+-+=.
（1）求1C 的普通方程及2C 的直角坐标方程，并说明它们分别表示什么曲线； （2）若,P Q 分别为1C ，2C 上的动点，且||PQ 的最小值为2，求k 的值.。