2017-2018年上海曹杨二中高一上物理期中试卷
2017-2018学年上海市普陀区曹杨二中高一上学期10月月考物理试卷学生

2017-2018学年上海市普陀区曹杨二中高一上学期10月月考物理试卷一、单选题1. 下列关于质点的说法中正确的是()A. 只要是体积很小的物体都可以看作质点B. 只要是质量很小的物体都可以看做质点C. 质量很大或体积很大的物体一定不能看做质点的D. 由于所研究的问题不同的物体有时可以看作质点有时不能看作质点2. 在匀变速直线运动中下列关于速度和加速度关系的说法,正确的是()A. 加速度与速度无关的B. 速度减小时,加速度也一定减小C. 速度为零时加速度也一定为零D. 速度增大时加速度也一定大3. 如图所示一个质点沿两个半径为r的半圆弧由a运动到c规定向右方向为正方向,在此过程中,它的位移大小和路程分别为()A. 4R 2πRB. 4R -2πRC. -4R 2πRD. -4R -2πR4. 一块小石块与一片羽毛,从同一高度同时自由落下,不考虑空气阻力则以下说法正确的是()A. 石块和羽毛一定同时落B. 石块比羽毛先落地C. 羽毛下落的加速度比石块下落的加速度小D. 羽毛落地的速度比石块落地的速度小5. 在匀变速直线运动中,下列说法正确的是()A. 相同时间内位移的变化相同B. 相同时间内速度的变化相同C. 相同时间内加速度的变化相同D. 相同路程内速度的变化相同。
6. 物体A、B的st图像如图所示由图可知()A. 从第三秒起两物体运动方向相同,v A>v BB. 两物体由同一位置开始运动,但物体A比物体B迟3秒才开始运动C. 在五秒内物体的位移相同五秒末A、B相遇D. 五秒内ab的平均速度相同。
7. 右图为一物体做直线运动的速度图像,根据图做如下分析,(分别用,v1、a1表示物体在0-t1的时间内的速度与加速度,v2、a2表示物体在t1-t2的时间内的速度与加速度)分析正确的是()A. v1与v2方向相同,a1与a2方向相反B. v1与v2方向相反,a1与a2方向相同C. v1与v2方向相反,a1与a2方向相反D. v1与v2方向相同,a1与a2方向相同8. 伽利略为了研究自由落体的规律,将落体实验转化为著名的“斜面实验”,从而创造了一种科学研究的方法,利用斜面实验主要是考虑到()A. 实验时便于测量小球运动的速度和路程B. 实验时便于测量小球运动的时间C. 实验时便于测量小球运动的路程D. 斜面实验可以通过观察与计算,直接得到落体的运动规律9. 甲物体重力是乙物体重力的五倍,甲从H高处自由下落,乙从两2H高处同时开始自由落下,下面几种说法中正确的是()A. 两物体下落过程中同一时刻甲的速度比乙的速度大B. 下落1秒末,他们的速度不相等C. 各自下落1米时,它们的速度相等D. 下落过程中甲的加速度比乙的大10. A、B两个物体分别做匀变速直线运动,A的加速度为a1=1.0m/s2,B的加速度为a2=-2.0m/s2,根据这些条件做出的以下判断,其中正确的是()A. B的加速度大于A的加速度B. A做的是匀加速运动,B做的是匀减速运动C. 两个物体的速度不可能为零D. 两个物体的运动方向一定相反11. 一物体由静止开始做匀加速运动,它在第n秒的位移是s,则其加速度大小为()A.B.C.D.12. 一个从静止开作匀加速直线运动的物体,从开始运动起,连续通过三段位移的时间分别是1s、2s、3s,这三段位移的长度之比和这三段位移上的平均速度之比分别是()A. 1:22:32,1:2:3B. 1:23:33,1:22:32C. 1:2:3,1:1:1D. 1:3:5,1:2:3二、多选题13. 做匀加速直线运动的物体,加速度为2m/s2,下列说法正确的是()A. 物体在任一秒末的速度是该秒初的速度的两倍B. 物体在任一秒末速度比该秒初的速度大2m/sC. 物体在任一秒的初速度比前一秒的末速度大2m/sD. 物体在任一秒内的位移都比前一秒内的位移增加2米14. 从静止开始做匀加速运动的物体,下列说法正确的是()A. 第1s、第2s、第3s末的瞬时速度之比是1:2:3B. 第1s、第2s、第3s内的平均速度之比是1:2:3C. 头1s、头2s、头3s内的平均速度之比是1:2:3D. 头1s、头2s、头3s的中间时刻的瞬时速度之比是1:2:315. 有一质点,从t=0开始从原点出发,沿x轴运动,其v—t图像如图所示,则()A. t=0.5s时离原点最远B. t=1s时离原点最远C. t=1s回到原点D. t=2s回到原点16. 两个质点甲与乙,同时由同一地点向同一方向做直线运动,它们的速度—时间图像如图所示。
2024届上海市曹杨中学高一物理第一学期期中调研试题含解析

2024届上海市曹杨中学高一物理第一学期期中调研试题注意事项:1.答题前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在条形码区域内。
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一、选择题(本题共12小题,每小题5分,共60分,在每小题给出的四个选项中,有的小题只有一个选项正确,有的小题有多个选项正确.全部选对的得5分,选不全的得3分,有选错的或不答的得0分)1、人类日常生活离不开摩擦力,如果没有摩擦力,我们]将不能走路、汽车将不能开动……下列关于摩擦力的说法中正确的是()A.汽车轮胎表面都有花纹,是为了减小摩擦B.吃饭时拿在手中的筷子不会滑落,是因为有摩擦力的作用C.猴子沿竖直竹竿匀速向上爬时,受到的摩擦力方向向下D.静止的物体不会受到滑动摩擦力的作用2、如图所示是一种清洗车辆用的手持喷水枪.设枪口截面积为0.6 cm2,喷出水的速度为20 m/s (水的密度为1×103 kg/m3).则水枪工作时的功率约为A.250 W B.300 W C.350 W D.400 W3、关于力和运动的关系,下列说法中正确的是A.物体做匀速直线运动其合外力不为零B.物体只要运动就需要力的作用C.力是改变物体运动状态的原因D.力是维持物体运动的原因4、下列关于质点的说法正确的是( )A.研究和观察日食时,可以把太阳看成质点B.研究地球的公转时,可以把地球看成质点C.研究地球的自转时,可以把地球看成质点D.原子核很小,可以把它看成质点5、一个木块沿倾角为α的斜面刚好能匀速下滑,若这个斜面倾角增大到β(α<β<90°),则木块下滑加速度大小为()A.gsinβB.gsin(β﹣α)C.g(sinβ﹣tanαcosβ)D.g(sinβ﹣tanα)6、下列说法正确的是()A.质点是忽略物体的大小和质量,把物体看成一个点,是一种理想化模型B.描述物体的运动必须选择地面或静止的物体为参考系C.位移是描述物体空间位置变化快慢的物理量D.坐标系能定量地描述物体的位置及位置的变化7、酒后驾驶会导致许多安全隐患,这是因为驾驶员的反应时间变长,反应时间是指驾驶员从发现情况到采取制动的时间.下表中“思考距离”是指驾驶员从发现情况到采取制动的时间内汽车行驶的距离;“制动距离”是指驾驶员发现情况到汽车停止行驶的距离(假设汽车制动时的加速度大小都相同).思考距离(m) 制动距离(m)速度(m/s)正常酒后正常酒后15 7.5 15.0 22.5 30.020 10.0 20.0 36.7 46.725 12. 5 25.0 54. 2 66.7分析上表可知,下列说法正确的是().A.驾驶员正常情况下反应时间为0.5 sB.驾驶员酒后反应时间比正常情况下多0.5 sC.驾驶员采取制动措施后汽车的加速度大小为3.75 m/s2D.若汽车以30 m/s速度行驶时,发现前方80 m处有险情,酒后驾驶者不能安全停车8、下列各图(均为直线)中,表示匀速直线运动的图象是()A.B.C.D.9、李师傅驾驶汽车以一定速度沿直线运动,发现前方有一障碍物后紧急刹车,假设刹车过程为匀变速直线运动,已知刹车后经8s停止,且最后2s位移为5m,则()A.刹车过程初速度大小为20m/s B.刹车过程初速度大小为25m/sC.刹车过程加速度大小为5m/s2D.刹车过程加速度大小为2.5m/s210、如图所示,光滑斜面上物体重力mg分解为F1、F2两个力,下列说法正确的是( )A.物体受到重力mg、F N、F1、F2四个力的作用B.物体只受到重力mg和斜面的支持力F N的作用C.F1是斜面作用在物体上使物体下滑的力,F2是物体对斜面的压力D.力F N、F1、F2三力的作用效果与力mg、F N两个力的作用效果相同11、做加速度恒定的直线运动的物体在某时刻的速度大小为4m/s,2s后速度大小为6m/s,则物体的加速度大小()A.可能小于2m/s2B.可能等于2m/s2C.可能大于2m/s2D.可能大于5m/s212、如图所示,水平地面上固定有两块木板、,两块木板紧挨在一起,木板的长度是的3倍。
2021-2022学年上海市普陀区曹杨二中高一(上)期中物理试卷

2021-2022学年上海市普陀区曹杨二中高一(上)期中物理试卷一、单选题(每题只有一个正确答案.1-8题每题3分,9-12题每题4分,共40分)1.(3分)如图是一只小鸟的运动连拍照片。
若用质点模型画出该小鸟的飞行路径,可以选择小鸟身体部位上的某点来代替小鸟,下列部位中最合理的是()A.头部B.翅膀C.尾部D.上述部位都可以2.(3分)“平均速度”、“合力与分力”概念建立时都用到的物理方法是()A.等效替代法B.控制变量法C.理想模型法D.极限思想法3.(3分)将两个力F1和F2合成为一个力F,下述正确的是()A.F1、F2都增大,则F也一定增大B.F1、F2可能是作用在两个不同物体上的力C.F也一定有施力物体和受力物体D.F可以比F1和F2都小4.(3分)如图所示为我国的极地考察破冰船﹣﹣“雪龙”号。
为满足破冰航行的要求,其船体结构经过特殊设计,船体下部与竖直方向成特殊角度。
则船体对冰块的弹力示意图正确的是()A.B.C.D.5.(3分)如图所示,一铅球静止在蹦床上面。
下列受力分析说法正确的是()A.蹦床受到的压力,就是铅球的重力B.铅球没有发生形变,所以铅球不受弹力C.蹦床受到向下的压力,是因为蹦床发生了弹性形变D.铅球受到向上的支持力,是因为蹦床发生了弹性形变6.(3分)如图所示,AB是半圆的直径,O为圆心,P点是圆上的一点,在P点作用了三个共点力F1、F2、F3.若F2的大小已知,则这三个力的合力为()A.F2B.2F2C.3F2D.4F27.(3分)以下各种运动的速度和加速度的关系可能存在的是()A.速度向东,正在减小,加速度向东,正在增大B.速度向东,正在增大,加速度向西,正在增大C.速度向东,正在增大,加速度向西,正在减小D.速度向东,正在减小,加速度向西,正在增大8.(3分)关于摩擦力,下列说法正确的是()A.人正常行走时,鞋底受到滑动摩擦力的作用B.杂技演员沿竖直杆匀速下滑时,演员受到的摩擦力的方向向下C.当增大竖直握住酒瓶的手的握力时,酒瓶受到的摩擦力将增大D.在冰面上洒些细土再走上去就不易滑倒,是因为鞋底受到的最大静摩擦力增大了9.(4分)甲乙两汽车在同一条平直公路上同向运动,其速度﹣时间图象分别如图中甲、乙两条曲线所示。
沪科版高中物理必修二高一期中考试题.doc

高中物理学习材料高一期中考试题一、单项选择题。
(本大题共10小题,每小题2分。
每小题给出的四个答案中,只有一个是正确的)1.对于做匀速圆周运动的物体,下列说法中正确的是( b )A.线速度不变B.周期不变C.向心力不变D.运动状态不变2.如图所示,在皮带传动装置中,主动轮A 和从动轮B 半径不等,皮带与轮之间无相对滑动,则下列说法中正确的是(b )A .两轮的角速度相等B .两轮边缘的线速度大小相等C .两轮边缘的向心加速度大小相等D .两轮转动的周期相同 3.如图所示,质量相等的A 、B 两物块置于绕竖直轴匀速转动的水平圆盘上,两物块始终相对于圆盘静止,则两物块 b ( )A .线速度相同。
B .角速度相同。
C .向心加速度相同。
D .向心力相同。
4.设行星绕恒星运动轨道为圆形,则它运动的周期平方与轨道半径的三次方之比R 3/T 2=K为常数,此常数的大小: ( a )A .只与恒星质量有关。
B .与恒星质量和行星质量均有关。
C .只与行星质量有关。
D .与恒星和行星的速度有关。
5.一列机械波沿x 轴传播,t=0时刻的波形如图所示。
则从图中可以看出( c )A.这列波的波长为5mB.波中的每个质点的振动周期为4sC.若已知波沿x 轴正向传播,则此时质点a 向下振动D.若已知质点b 此时向上振动,则波是沿x 轴负向传播的6、如图,波源在S 点,M 、N 是两块挡板,其中M 板固定,N 板可左右移动,板间有一狭缝,此时测得A 处质点没有振动,若使A 处质点振动,可采用:( d ) A BA 、 增大波源的频率B.减小波源的频率C.N 板右移D. N 板左移 7、用质量不计的细绳系住一小球,细绳的另一端固定于O 点、将小球拉开一定角度后释放,从小球释放到运动到最低位置的过程中,重力做功的瞬时功率将( c )A 、始终增大B 、始终减小C 、先增大后减小D 、先减小后增大8.如图所示,木块M 可以分别从固定斜面的顶端沿左边或右边由静止开始滑下,且滑到A 点或B 点停下。
上海市曹杨二中2018学年高一上学期期末考试物理试题

上海市曹杨二中2015学年度第一学期高一年级期末考试物理试卷命题人:__________ 校对人:__________ 审核人:__________试卷共4页1张考生注意:1、答卷前,考生务必将姓名、班级、学号等在指定位置填写清楚。
2、本试卷共有24道试题,满分100分,考试时间60分钟。
请考生用水笔或圆珠笔将答案直接写在试卷(或答题卷)上。
3、本试卷重力加速度g 取210m/s 。
sin 370.6︒=,cos370.8︒=。
一、单选题(每题3分,共30分)1.汽车以10m/s 的速度在水平路面上匀速前进,紧急制动时以22m/s -的加速度在粗糙水平面上滑行,则在6s 内汽车通过的路程为( ) A .24mB .30mC .25mD .以上答案都不对2.1F 、2F 的合力为F ,已知120N =F ,28N =F ,那么2F 的取值可能是( ) A .40NB .70NC .100ND .6N3.静止在水平桌面上的物体,对水平桌面的压力( ) A .就是物体的重力B .大小等于物体的重力C .是由于地球的吸引而产生的D .是由于桌面的形变而产生的4.如图,在倾角为45︒的光滑斜面上有一圆球,在球前放一光滑竖直挡板使球保持静止,此时球对斜面的正压力为1N ;若去掉挡板,球对斜面的正压力为2N ,则下列判断正确的是( )A .2112=N NB .21=N NC .212=N ND .21=N5.如图所示,用一水平力F 将两铁块A 和B 紧压在竖直墙上而静止。
对此,下列说法中正确的是( )A .铁块A 对铁块B 的摩擦力方向可能向上,也可能向下 B .铁块A 对铁块B 摩擦力一定向上C .墙对铁块B 的摩擦力方向可能向上,也可能向下D .墙对铁块B 的摩擦力一定向上6.下列关于惯性的说法,正确的是( ) A .物体只有静止或做匀速直线运动时才具有惯性B .惯性是保持物体运动状态的力,起到阻碍物体运动状态变化的作用C .一切物体都有惯性,速度越大惯性越大D .两个物体质量相等,它们的惯性大小一定相等 7.关于力和运动的下列说法中,正确的是( ) A .物体运动的方向总跟物段所受合外力的方向一致B .作用在物体上的合外力不为零时,物体的瞬时速度可能为零C .当物体所受合外力减小,物体的速度也随之减小D .当物体所受合外力不变时,物体的速度也一定不变8.一个在水平粗糙地面上做直线运动的物体,在水平方向除摩擦力外只受向右推力作用,下面叙述的四种情况中,不可能出现的是( ) A .物体向右运动,加速度为零 B .物体向左运动,加速度为零 C .物体加速度的方向向右D .物体加速度的方向向左9.雨滴从空中由静止落下,若雨滴下落时空气对其阻力随雨滴下落速度的增大而增大,下面图象能反映雨滴下落运动情况的是( )10.如图所示,小车固定着三角硬杆,杆的端点固定着一个质量为m 的小球。
2024届上海市曹杨二中物理高一第一学期期中教学质量检测模拟试题含解析

2024届上海市曹杨二中物理高一第一学期期中教学质量检测模拟试题注意事项1.考试结束后,请将本试卷和答题卡一并交回.2.答题前,请务必将自己的姓名、准考证号用0.5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置.3.请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符.4.作答选择题,必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑;如需改动,请用橡皮擦干净后,再选涂其他答案.作答非选择题,必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答,在其他位置作答一律无效.5.如需作图,须用2B铅笔绘、写清楚,线条、符号等须加黑、加粗.一、选择题:(1-6题为单选题7-12为多选,每题4分,漏选得2分,错选和不选得零分)1、李老师驾车从“温州第十五中学”开往“瑞安四中”,手机导航地图如图所示,下列说法正确的是A.导航上“时间少”方案中的33公里指的是位移B.常规路线中的29公里指的是两校间的最短距离C.图中显示的“58”分是指时刻D.图中显示的“1小时6分”是指时间间隔2、关于物理学发展过程中的认识,下列说法正确的是()A.奥斯特发现了电流的磁效应,并发现了电磁感应现象B.法拉第在分析了许多实验事实后提出,感应电流应具有这样的方向,即感应电流的磁场总要阻碍引起感应电流的磁通量的变化C.楞次发现了电流的磁效应,揭示了磁现象和电现象之间的联系D.在法拉第、纽曼、韦伯等人工作的基础上,人们认识到:电路中感应电动势的大小,跟穿过这一电路的磁通量的变化率成正比,后人称之为法拉第电磁感应定律3、在科学发展的历程中,首先把实验和逻辑推理和谐地结合起来,对自由落体运动进行正确研究的科学家是( ) A.伽利略B.牛顿C.开普勒D.亚里士多德4、如图所示,将完全相同的两个小球A、B,用长L=0.8m的细绳悬于以v0=4m/s向右匀速运动的小车的顶部,两球恰与小车前后壁接触,由于某种原因,小车突然停止运动,此时悬线的拉力之比F A:F B为(g=10m/s2)()A .1:4B .1:3C .3:1D .1:15、一辆列车由等长的车厢连接而成,车厢间的间隙忽略不计。
上海曹杨二中高中物理必修一第一章《运动的描述》测试题(有答案解析)

一、选择题1.甲乙两同学沿直线从A 地到B 地,甲同学前一半位移平均速度为v ,后一半位移平均速度为2v ,乙同学前一半时间平均速度为v ,后一半时间平均速度为2v 。
则关于两同学全程平均速度v 甲、v 乙的关系,下列正确的是( )A .v v >甲乙B .v v <甲乙C .v v =甲乙D .2v v =甲乙 2.甲、乙两物体零时刻开始从同一地点向同一方向做直线运动,位移—时间图象如图所示,则在0~t 1时间内( )A .甲的速度总比乙大B .甲、乙平均速度相同C .乙物体做曲线运动D .甲、乙均做加速运动3.一辆汽车沿直线从甲地开往乙地,前一半位移内的平均速度为30km/h ,后一半位移内的平均速度为60km/h ,这辆车全程的平均速度是( )A .40km/hB .45km/hC .50km/hD .55km/h 4.一质点以初速度v 0沿x 轴正方向运动,已知加速度方向沿x 轴正方向,在加速度a 的值由零逐渐增大到某一值后再逐渐减小到零的过程中,该质点( )A .速度先增大后减小,直到加速度等于零为止B .速度一直在先减小后增大,直到加速度等于零为止C .位移先增大,后减小,直到加速度等于零为止D .位移一直在增大,到加速度等于零之后仍继续增大5.关于速度和加速度的关系,下列说法中正确的是( )A .加速度可以用速度与时间的比值来表示B .速度改变量越大,加速度越大C .加速度越大,速度变化越快D .速度为零时,加速度一定也为零6.如图所示为甲、乙两物体运动的x -t 图象,则下列说法不正确的是(曲线为甲,直线为乙)( )A.甲物体做变速直线运动,乙物体做匀速直线运动B.两物体的初速度都为零C.在t1时间内两物体平均速度相等D.相遇时,甲的速度大于乙的速度7.对于下列体育比赛的论述,说法正确的是()A.某场篮球比赛打了两个加时赛,共需10min,指的是时刻B.某运动员铅球成绩为4.50m,指的是铅球在空中运动的位移大小为4.50mC.足球比赛挑边时,上抛的硬币落回地面猜测正反面,该硬币可以看做质点D.运动员跑完1500m比赛,指的是路程大小为1500m8.如图是一辆汽车做直线运动的s﹣t图像,对线段OA、AB、BC、CD所表示的运动,下列说法正确的是()A.OA段运动速度最大B.AB段物体做匀速运动C.CD段的运动方向与初始运动方向相反D.运动4h汽车的位移大小为60km9.下列说法正确的是()A.即将到站的列车因速度减小,所以加速度减小B.慢走中的小刘突然加速跑向即将发车的列车时,因速度变化大,所以加速度大C.列车发车时因速度为零,所以加速度也为零D.列车在平直轨道上匀速行驶时,虽速度很大,但加速度为零10.下列说法中,正确的是()A.坐在火车上的乘客看到铁路旁的电杆迎面向他飞奔而来,乘客是以地面为参考系的B.研究“神十一”的轨迹时,“神十一”可以视为质点C.物体在5s内指的是物体在第4s末到第5s初这1s的时间D.物体沿直线向某一方向运动时,通过的路程就是位移11.关于速度与加速度有下列的说法:①速度增大时,加速度不一定增大,②速度减小时,加速度一定减小,③速度改变量越大,加速度越大,④加速度与速度的大小及方向无关。
2017-2018学年曹杨二中高一上10月考试卷

2017-2018学年曹杨二中高一上月考II.VocabularyDirections: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.A.approachedB. generousC. financiallyD. effortE. datesF. victimG. closed H. substituting I. boosts J. visible K. seeminglyHave you ever watched a television show or a movie and felt like you were watching a really long commercial? If so, then you’ve fallen 21_ to bad product placement (产品植入). Clever marketing folks want their products to be 22_ within a scene, but not the focus. When done correctly, product placement can add a sense of realism to a movie or television show.Product placement 23_ from as early as 1950s when a drinks company paid to have a character in the movie The African Queen toss loads of their product overboard. Since then, there have been countless placements in thousands of movies.Sometimes product placement just happens. A set dresser (布景人员) might think of something that 24_ the level of credibility or realism of the story. One example is the use of a can of ant killer in a violent fight scene in the popular television programme The Sopranos. A spokeswoman for the manufacturer said if the company had not been 25_ about the use of their product, they would not have given it a thumbs-up.Arranged product placement deals are more prevailing. The most common type is a simple exchange of the product for the placement. A deal is made; in exchange for the airtime, the cast and crew are provided with a(n) 26_ supply of the company's products.Sometimes, a gift of the product isn’t an appropriate form of compensation, so the deal27_with money works well. Someone from a manufacturer’s marketing team hears about a movie project, and approaches the set dresser with a(n) 28_ attractive proposal. They come to an agreement, and the product makes a number of 29_ casual appearances. Both teams a re happy. Before product placement really saw a rapid growth in the mid-1980s, it was pretty much ado- it-yourself 30_ . Now there are entire agencies that can handle the job. Some larger corporations will dedicate personnel to seek out opportunities for placement within films, television shows —even games and music.ClozeDirections: For each blank in the following passage there are four words or phrases marked A, B,C and D. Fill in each blank with the word or phrases that best fits the context.Stroke is the fourth leading cause of death among Americans, and a much larger 31 to chronic disability and healthcare costs than this ranking suggests. There’s32 question that preventing strokes is important. But a big question is how best to do so and in whom.Currently, some expert say, far too many people who are free of 33 that might herald ( 预示) a stroke are undergoing surgery to ream out carotid arteries ( 颈动脉) that feed the 34 , or are having stents ( 支架) inserted in these arteries, than is justified by availableevidence.and create a risk of serious complications like heart attack or , 36 stroke itself, even death; and drive 37 health care costs by billions of dollars a year.Based on the latest research , they 38 , most patients without symptoms like a39 stroke or transient ischemic attack ( 短暂性脑缺血发作) do as well---or nearly as well—with intensive medical therapy to 40 blood pressure, cholesterol and diabetes.“ Intensive medical therapy is a much 41 way to prevent stroke caused by clots(血块) than either surgery or stent mg(支架植入术) ,” said Dr. David Spence, a stroke prevention specialist at the University of Western Ontario.But surgeons, even those who 42 the limitations of current research, say carotid endarterectomy (颈动脉内切手术), as the reaming operation is called, is the treatment of choice for many patients with serious 43 in one or both carotid arteries. That sentiment( 观点)also is reflected in guidelines from the Society of Vascular Surgeons and the American Heart Association.Dr. Michael Belkin, the chief of vascular and endovascular (血管内的) surgery at Brigham and Women’s Hospital in Boston, who performs 44 of endarterectomies each year, said ,” In asymptomatic patients with high-grade carotid stenosis(器官狭窄), meaning a blockage of 70 percent or greater , surgical therapy is better than 45 therapy.31. A. donator B. contributor C. part D. influence32. A. not B. any C. some D. no33. A. signs B. symbols C. symptoms D. illness34.A. stomach B. body C. brain D. blood35.A. unnecessary B. necessary C. important D. useful36.A. ironically B. smoothly C. favorably D. unfavorably37.A. down B. ahead C. up D. back38. A. maintain B. promise C. are against D. disagree39.A. wild B. mild C. child D. serious40.A. lower B. treat C. control D. raise41.A. more dangerous B. safer C. more successful D. cleaner42.A. more dangerous B. safer C. more successful D. cleaner43.A. sickness B. damage C. blockages D. situation44.A. grades B. scores C. marks D. thousands45.A. medical B. proper C. suitable D. anyIII.Reading comprehensionDirections: Read the following three passage. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose one that fits best according to the information given in the passage you have just read.( A )They say a cat has nine lives, and I think that possible since I am now living my third life and I’m not even a cat .My father died when I was 15, and we had a hard struggle to make a living .And my mother, who was seriously ill in her last years, died while still in her 60s .My sistermarried soon after, and I followed her example within the year .This was when I began to enjoy my first life .I was very happy, in excellent health .I had a good job in San Jose and a beautiful home up the peninsula in San Carlos .Life was a pleasant dream .Then the dream ended .I became afflicted (使苦恼) with a slowly progressive disease of the motor nerves, affecting first my right arm and leg, and then my other side .Thus began my second life… .In spite of my disease I still drove to and from work each day, with the aid of special equipment installed in my car .And I managed to keep my health and optimism, to a degree, because of 14 steps .Crazy? Not at all .Our home was an affair with 14 steps leading up from the garage to the kitchen door .Those steps were a standard measure of life .They were my yardstick, my challenge to continue living .I felt that if the day arrived when I was unable to lift one foot up one step and then drag the other painfully after it ---repeating the process 14 times, I would be through---I could then admit defeat and lie down and die .Then on a dark night in August, 1971, I began my third life .It was raining when I started home that night; strong winds and slashing rain beat down on the car as I drove slowly down one of the less-traveled roads .Suddenly the steering wheel jerked (猝然一动) .In the same instant I heard the bang of a blowout .It was impossible for me to change that tire! Utterly impossible!I started the engine and thumped slowly along, keeping well over on the shoulder until I came to the dirt road, where I turned in and where I found lighted windows welcomed me to a house and pulled into the driveway and honked the horn .The door opened and a little girl stood there .When she knew what happened to me, she went into the house and a moment later came out, followed by a man who called a cheerful greeting .I sat there comfortable and dry, and felt a bit sorry for the man and the little girl working so hard in the storm .About an hour later, the man’s voice was heard, “This is a bad night for car trouble, but you’re all set now .” “Thanks,” I said .“How much do I owe you?” He shook his head, “Nothing .Cynthia told me you were a cripple .Glad to be of help .I know you’d do the same for me .There’s no charge, friend .” I held out a five-dollar bill, “No! I like to pay my way .” He made no effort to take it and the little girl stepped closer to the window and said quietly, “Grandpa can’t see it .”46 .“A cat has nine lives” here means .A.a cat can live nine times longer than any other animalB.a cat can die ninthC.a lucky man can not die easilyD.the writer will live nine times47.What do you think of the man who helped change the tire?A.Warm-hearted but pitiableB.Warm-hearted and happyC.A blind old man that has nothing to do everyday.D.A poor old man that is always ready to helpothers.48.How will the story be ended?A.The writer paid the little girl but the old man did notaccept.B.The writer drove away with tears running down hischeek.C.The writer stayed there, without knowing what to do and how to do.D.In the next few frozen seconds the writer felt the shame and astonishment he had never felt before.( B )What we doEFP Courses provide courses in English language and British culture. Our courses are aimed at students aged between 12 and 17 who are at pre-intermediate level or above in English. The courses are held in Guildford, a historic town near London. Typical structure of a one-week courseUp to 25 hours of English run by native speakers, qualified in teaching English asa foreign language and specialist drama teachers2 full-day sightseeing trips to London and Oxford (at weekends)Full board(全食宿) with local, English-speaking familiesWhen we run the coursesEFP courses can be organized only during British state school terms. For this academic year, courses can be booked between now and 23 May and between 30 May and 30 June. We welcome you to book from 3 September 2016 to 25 October 2016 and from 31 October to 20 December 2016.Why choose EFP coursesIn addition to our standard English classes, we also run drama and expression English classes, taught by specialist drama teachersWe expose our students to British culture for the entire length of the courseWe tailor courses to each group’s needs, creating a unique experience for our students. Note that any changes to our courses are made within reason and only if all participants from a group share the same language level. Please see further details on our website.Length of a courseEFP courses run for either one or two weeks depending on the specific requirements for your group.How to applyPlease register your interest by sending an email to info@. By contacting us before you make any travel arrangements you ensure that we can put your group up on the dates that you require. For more details, please visit www.efpcourses. .See you in Guildford soon!49.What does the leaflet tell us about EFP courses?A their target students are teenagers of all English levelsB they are available on the school campuses in London and OxfordC Every individual participant is supplied with tailored language supportD they involve students in British culture activities during the whole course50.Suppose you are to take EFP courses this academic year, you canA make a reservation from October 31 to December 20B enjoy a special series of lessons for a whole school termC experience English dramas with English-speaking familiesD hand in an application by visiting their websites51.The purpose of this writing is toA attract qualified teachers to EFP coursesB offer group students access to EFP coursesC demostrate the popularity of EFP courses Dillustrate the importance of EFP courses( C )Attachment Parenting is not Indulgent(纵容的) Parenting. Attachment parents do not “spoil” their children. Spoiling is done when a child is given everything that they want regardless of what they need and regardless of what is practical. Indulgent parents give toys for tantrums(发脾气),ice cream for breakfast Attachment parents don't give their children everything that they want, they give their children everything that they need. Attachment parents believe that love and comfort are free and necessary. Not sweets or toys.Attachment Parenting is not "afraid of tears" parenting. Our kids cry. The difference is that we understand that tantrums and tears come from emotions and not manipulation. And our children understand this too. They cry and have tantrums sometimes, of course. But they do this because their emotions are so overwhelming that they need to get it out They do not expect to be "rewarded" for their strong negative emotions; they simply expect that we will listen. We pick up our babies when they cry, and we respond to the tears of our older children because we believe firmly that comfort is free, love is free, and that when a child has need for comfort and love, it is our job to provide those things. We are not afraid of tears. We don't avoid them. We hold our children t hrough them and teach them that when they are hurt or frustrated we are here to comfort them and help them work through their emotions.Attachment Parents is not Clingy Parenting. I do not cling to my children. In fact, I'm pretty f ree-range. As soon as they can move they usually move away from me and let me set up a chase as they crawl, run, skip and hop on their merry way to explore the world. Sure, I carry them and hug them and chase them and kiss them and rock than and sleep with them. But this is not me following them everywhere and pulling them back to me. This is me being a home base. The "attachment" comes from their being allowed to attach to us, not from us attaching to than like parental leeches. Attachment Parenting is not Selfish Parenting. It is also not selfless parenting. We are not doing it for us, and we are not doing it to torment ourselves.Attachment parenting is not Helicopter Parenting. I don't hover. I supervise. I follow, I teach, I demonstrate, I explain. I don't slap curious hands away. I show how to do things safely. I let my child do the things that my child wishes to do, first with help and then with supervision and finally with trust. I don't insist that my 23 month old hold my hand when we walk on the sidewalk because I know I can recall him with my voice because he trusts me to allow him to explore and he trustsme to explain when something is dangerous and to help him satisfy his curiosities safely.Most of the negative things that I hear about "attachment parents" are completely off-base and describe something that is entirely unlike Attachment Parenting. Attachment Parenting is child- centric and focuses on the needs of the child. Children need structure, rules, and boundaries. Attachment Parents simply believe that the child and the parent are allies, not adversaries. And that children are taught, not trained.52.According to the author, what should parents do when their kids cry?A.Rewarding kids with toys.B.Trying to stop kids crying.C.Holding them till they stop.D.Providing comfort and love.53.What does “free-range” mean according to the passage?A.Willing to give kids freedom of movement.B.Ready to play games with my kids.C.Curious to watch what games they play.D.Fond of providing a home base.54.Which of the following is NOT attachment parenting?A.Fostering their curiosityB. Helping them do the right thingC. Showing them how things are doneD. Standing by and protecting55.What does the passage mainly discuss?A.How to foster love in childrenB. Different types of parentingC. How to build child confidenceD. Parent-child relationship第II 卷IV.Fill in the blanks with the proper relatives and appropriate form of words given in brackets , add modal verbs if necessary.56.Her brother (be ) at home now, because he was seen playing basketball in the stadium just now.57.All the contestants remain in their seats until the test paper is collected, which is a regulation in our school.58.Y ou are getting heart attack, the doctor says you (do) so much physical exercise.59.The bicycle and the rider had knocked down the boy were taken to the police for further investigation.60.He told me that was broadcast by TV was just nothing but a rumor.61.What makes all the students and teachers astonished is that the promising student(give) up such a good opportunity to be sent to abroad.62.The engineer my father was talking was also a professor teaching in a key university.63.The wolves hid themselves in the places couldn’t be found.64.Many students think that they (be) bothered to explain the material because the expert already knows it.65.I really admire your new dress and I want to buy such a gorgeous dress you wear.V.Translation :66.我需要吃些肉,因为它含有蔬菜中没有的维生素和矿物质。
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10. 运动员用双手握住竖立的竹竿匀速攀上和匀速下滑,他所受的摩擦接力分别是 F1 和 F2, 那么( )
A.F1 向下,F2 向上,且 F1=F2 B.F1 向下,F2 向上,且 F1>F2. C.F1 向上,F2 向下,且 F1=F2 D.F1 向上,F2 向上,且 F1=F2 . 二、多项选择题(至少有两个正确答案,每题 5 分,漏选得 3 分)
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D.物体的重心在物体中的位置不因物体升高、降低、倾斜而发生改变。 6、如图所示,细绳竖直拉紧,小球和光滑斜面接触并处于静止状态,小球受到的力是( ) A.重力、绳的拉力 B.重力、绳的拉力、斜面的弹力 C.重力、斜面的弹力 D.绳的拉力、斜面的弹力 7.某物体沿一直线运动,其 v—t 图象如图所示,则下列说 法错误的是( ) A.第 2s 内和第 3s 内速度方向相反 B.第 2s 内和第 3s 内的加速度方向相反 C.第 3s 内速度方向与加速度方向相反 D.第 5s 内速度方向与加速度方向相反 8.为了测定某辆轿车在平直路上起动时的加速度(轿车起动时的运动可近似看作匀加速运 动)。某人拍摄了一张在同一底片上多次曝光的照片如图所示.如果拍摄时每隔 2S.曝光一次, 轿车车身总长 4. 5m,那 么这辆车的加速度约为:( ) A、lm/s2 B、2.6m / s2 C、3m/s2 D. 4m / s2
B.滑动摩擦力方向一定和物体运动方向一定与其弹力方向垂直
D.静止的物体不可能受滑动摩擦力作用
14.一个做匀加速直线运动的物体,先后经过 A、B 两点时速度分别是 v 和 7v,经过 AB 的
时间是 t,则下列判断中正确的是 ( )
A. 经过 A、B 中点的速度是是 4v
的动摩擦因数为_____。
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18. —矿井深 45m,在井口每隔一定时间自电落下一个小球,当第 7 个小球从井口下落时, 第一个小球恰好落至井底,相邻两个小球下落的时间间隔是_______;这时第 3 个小球和 第 5 个小球相距 _________m. 四、综合应用题 19. (4 分).如图所示,光滑但质量分布不均匀的小球的球心在 0 点, 重心在 P 点,静止在竖直墙和桌边之间,各个接触面硪点均光滑。试 画出小球所受的力。如果重心位置在 O 点处,则球受到墙的弹力 ______(变大、变小或不变) 20. (10 分)光电门的基本结构如图 a 所示: (1) DIS 是由传感器、 _________和计算机二部分组成,在使用位移传感器时,把_________ 固定在小车上。 (2) 某次宽为 d 的挡光片通过光电门,计时器上显示时间娃 t,则挡光片通过光电门时的瞬 时速度人小为____ .为了减小测量瞬时速度的误差,应该选择宽度比较 (选填“宽” 或“窄”)的挡光板. (3)利用两个光电门和上述挡光片可以研究匀加速度直线运动.如图 b,将挡光片固定在滑块上, 滑块自由滑下后光电门 1 的计时器上 显示 t1,光电门 2 的计时器上畢示 t2, 已知两光电门之间的距离 L,则滑块 下滑的加速度为
上海市曹杨二中 2017 学年度第一学期 高一年级期中考试物理试卷
考生注意: 1、 答卷前,考生务必将姓名、班级、学号等在指定位置填写清楚。 2、 本试卷共有 22 道试题,满分 100 分,考试时间 60 分钟。请考生用水笔或圆珠笔将答案 直接写在试卷(或答题卷)上。 3、 如果需要,g=10m/s2 一、单选题(每题只有一个正确答案,1-6 题每题 2 分,7-10 题每题 3 分) 1. 下列几种运动中的物体,不可以看作质点的是 ( ) A.计算从广州飞往北京的飞机的飞行时间 B.绕地轴做自转的地球 C.绕太阳公转的地球 D.在平直公路上行驶的汽车 2.在匀变速直线运动中,下列说法正确的是( ) A.相同的时间内位移变化相同 B.相同的时间内速度变化相同 C.相同的时间内加速度变化相同 D.相同的路程内速度鸾化相同 3.几个做匀变速直线运动的物体,在 t 秒内位移最大的是( ) A.加速度最大的物体 B.初速度最大的物体 C.末速度最大的物体 D.平均速度最大的物体 4.—个物体静止在水平桌面上,下列说法正确的是( ) A.物体受的重力和桌面对它的支持力是一对作用力和反作用力 B.物体对桌面的压力就是重力 C.桌面对物体的支持力大小等于重力,这两个力是一对乎衡力 D.物体受到的重力的反作用力是物体对桌面的压力 5.关于物体的重心,下列说法正确的是 ( ) A.重心就是物体内最重的点 B.重心是重力的作用点,所以重心一定在物体上 C.任何有规则形状的物体,它的几何中心必然与重心重合
11. 关于瞬时速度和平均速度,下列说法正确的是( )
A.—般讲平均速度时,必须讲清是哪段时间(或哪段位移)内的平均速度
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B.对于匀速直线运动,其平均速度跟哪段时间(或哪段位移)无关
C.瞬时速度和平均速度都可以精确描述变速运动
D.瞬时速度是某时刻的速度,所以只有瞬时速度才可以精确描述变速运动
9.两辆完全相伺的汽车,沿平直公路一前一后匀速行驶,速度均为 v0,若前车突然以恒定的 加速度刹车,在它刚停住时,后车以前车刹车时的加速度开始刹车,已知前车在刹车过程中
所行驶的距离为 S .若要保证两车在上述情况中不相撞;则两车在匀速行驶时保持的距离至
少应为( )
A.S
B. 2S
C. 3S
D. 4S
;一水滴离开屋檐后自由下落;它通过某一楼的一个高度为 1.4m
的窗口,历时 0.2s 时间。那么此窗的顶部离开屋檐的距离是_________
17. 如图所示,用水平力 F 把铁块紧压在竖直墙面上,铁块所受的重力为 8N,
当水平力 F 为 20N 时,铁块恰能匀速下滑,铁块所受摩擦力为____N,铁块与墙
12. 关于弹力,下列说法中正确的是( )
A.压力和支持力的方向总是垂直于接触面
B 木块在桌面上受种向上的弹力,是由于桌面发生微小的形变而产生的
C.轻杆一端所受弹力的作用线一定与轻杆重合
D.轻绳一端所受弹力的作用线一定与轻绳重合
13. 下列关于滑动摩擦力的说法中,正确的是( )
A.相对运动又相互接触的物体间,可能不产生摩擦力
B. 经过 A、B 中间时刻的速度是是 4v
C. 前时间通过的位移比后 t/2 时间通过的位移少 1.5vt
D. 通过前 s/2 位移所需时间是通过后 s/2 位移所需时间的 2 倍
三、填空题(每空格 3 分,共 24 分)
15. 子弹恰能穿过三块质地相同、厚度相同的木板,设子弹在木板里的加速度是恒定的,则
子弹依次穿过三块木板所用时间之比是:________。作匀变速直线运动的物体通过某一段距
离 S 的时间为 t1,通过下一段同样长距离 S 的时间为 t2,求物体的加速度_____。
16. 以 10m/s 的速度行驶的汽车,紧急刹车后加速度的大小是 2.0m/s2,刹车后 2s 和 6s 内的
位移之比为