必修2寒假作业考试卷及答案2014.1.17

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《必修2》复习寒假作业及答案

《必修2》复习寒假作业及答案

《必修2》复习寒假作业1一、选择题(共12小题,每小题4分,满分48分.在每小题给出的四个选项中,第1~8题只有一项符合题目要求;第9~12题有多项符合题目要求。

全部选对的得4分,选对但不全的得2分,有选错的得0分。

)1.下列关于运动和力的叙述中,正确的是()A.做曲线运动的物体,其加速度方向一定是变化的B.物体做圆周运动,所受的合力一定指向圆心C.物体所受合力方向与运动方向相反,该物体一定做直线运动D.物体运动的速率在增加,所受合力方向一定与运动方向相同2.秋千是中国古代北方少数民族创造的一种运动.春秋时期传入中原地区,因其设备简单,容易学习,故而深受人们的喜爱,很快在各地流行起来.会荡秋千的人不用别人推,就能越摆越高,而不会荡秋千的人则始终也不摆不起来,要使秋千越摆越高,以下做法合理的是()A.从高处摆下来的时候身体迅速一蹲,而从最低点向上摆起时,身体迅速直立起来B.从高处摆下来的时候身体要保持直立,而从最低点向上摆起来时,身体迅速下蹲C.不论从高处摆下来还是从最低点向上摆起,身体都要保持下蹲D.不论从高处摆下来还是从最低点向上摆起,身体都要保持直立3.如图所示,水平地面上O点正上方的A、B两点分别水平同时抛出两个小球,C在水平面上O点右边,则两球()A.可以同时落在C点B.落在C点的速度方向可能相同C.落在C点的速度大小可能相同D.落在C点时重力的功率不可能相同4.如图所示:一玻璃筒中注满清水,水中放一软木做成的小圆柱体R(圆柱体的直径略小于玻璃管的直径,轻重大小适宜,使它在水中能匀速上浮).将玻璃管的开口端用胶塞塞进(图甲).现将玻璃管倒置(图乙),在软塞上升的同时,将玻璃管水平向右由静止做加速运动,观察木塞的运动,将会看到他斜向右上方运动,经过一段时间,玻璃管移向图丙中虚线所在位置,软木塞恰好运动到玻璃管的顶端,在四个图中,能正确反映木塞运动轨迹的是()A.B.C.D.5.如图,可视为质点的小球,位于半径为m半圆柱体左端点A的正上方某处,以一定的初速度水平抛出小球,其运动轨迹恰好能与半圆柱体相切于B点.过B点的半圆柱体半径与水平方向的夹角为60°,则初速度为:(不计空气阻力,重力加速度为g=10m/s2)()A.m/sB.4m/sC.3m/sD.m/s6.暗物质是二十一世纪物理学家之谜,对该问题的研究可能带来了一场物理学家的革命.为了探测暗物质,我国在2015年年12月17日成功发射了一颗被命名为“悟空”的暗物质探测卫星.已知“悟空”在低于同步卫星的轨道上绕地球做匀速圆周运动,经过时间t(t小于其运动周期),运动的弧长为s,与地球中心连线扫过的角度为β(弧度),引力常量为G,则下列说法中正确的是()A.“悟空”的线速度大于第一宇宙速度B.“悟空”的向心加速度大于地球同步卫星的向心加速度C.“悟空”的质量为D.“悟空”的环绕周期为t7.如图所示,高h的光滑斜面,一质量为m的物块,在沿斜面向上的恒力F作用下,能匀速沿斜面向上运动.若把此物块放在斜面顶端,用2F的恒力沿斜面向下拉动,使其由静止向下滑动,滑至底端时其动能的大小为()A.2mghB.3mghC.2FhD.3Fh8.如图所示,在水平桌面上的A点有一个质量为m的物体以初速度v0被抛出,不计空气阻力,当它达到B点时,其机械能为()A.mv02+mghB.mv02+mgHC.mgH﹣mghD.mv02+mg(H﹣h)9.2008年9月25日至28日我国成功实施了“神舟”七号载人航天飞行并实现了航天员首次出舱.飞船先沿椭圆轨道飞行,后在远地点343千米处点火加速,由椭圆轨道变成高度为343千米的圆轨道,在此圆轨道上飞船运行周期约为90分钟.下列判断正确的是()A.飞船在轨道1的运行周期大于在轨道2的运行周期B.飞船在圆轨道上时航天员出舱前后都处于失重状态C.飞船在此圆轨道上运动的角度速度大于同步卫星运动的角速度D.飞船变轨前通过椭圆轨道远地点时的加速度大于变轨后沿圆轨道运动的加速度10.北京时间2015年12月22日9时29分,美国太空探索公司(SpaceX)成功发射新型火箭Falcon 9FT,并在发射10分钟后非常完美地回收了一级火箭,并成功将Orbcomm公司的11颗通讯卫星送入预定轨道.一级火箭的回收将大幅降低火箭发射费用,人类前往太空不再昂贵,廉价太空时代即将到来.如图为火箭通过尾部喷气正竖直向着降落平台减速降落的情景.火箭质量为m,喷出气体的质量相对于火箭质量很小,在离平台高h 时速度为v,降落过程中受空气的浮力和阻力大小之和为F f,刚要落在平台上时的速度可忽略,降落过程中各力均可视为恒定.下列关于上述过程的描述正确的是()A.火箭处于失重状态B.降落过程中喷气推力为mg+﹣F fC.火箭的机械能减少了FfhD.火箭所受重力的平均功率为11.如图所示,BC是半径为R的竖直面内的圆弧轨道,轨道末端C在圆心O的正下方,∠BOC=60°,将质量为m的小球,从与O等高的A点水平抛出,小球恰好从B点沿圆弧切线方向进入圆轨道,由于小球与圆弧之间有摩擦,能够使小球从B到C做匀速圆周运动.重力加速度大小为g.则()A.从B到C,小球克服摩擦力做功为mgRB.从B到C,小球与轨道之间的动摩擦因数可能保持不变C.A、B两点间的距离为RD.在C点,小球对轨道的压力为mg12.2016年2月24日,国务院连续发布五项重要措施力挺新能源汽车产业.为减少二氧化碳排放,我国城市公交强推新型节能环保电动车,在检测某款电动车性能的实验中,质量为8×102kg的电动车由静止开始沿平直公路行驶,达到的最大速度为15m/s,利用传感器测得此过程中不同时刻电动车的牵引力F与对应的速度ν,并描绘出F﹣图象(图中AB、BO均为直线),假设电动车行驶中所受的阻力恒定,则根据图象下列判断正确的是()A.电动车运动过程中所受的阻力为2000NB.电动车的额定功率为6kwC.电动车维持匀加速运动的时间1.5SD.BC过程电动车运动的时间为2s二、实验题(共2小题,满分15分)13.某同学利用自己设计的弹簧弹射器测量弹簧的弹性势能.装置如图所示.水平放置的弹射器将质量为m 的静止小球弹射出去.测出小球通过两个竖直放置的光电门的时间间隔为t,甲、乙光电门间距为L,忽略一切阻力.①小球被弹射出的速度大小v=______,求得静止释放小球时弹簧弹性势能E P=______;(用题目中的字母符号表示)②由于重力作用,小球被弹射出去后运动轨迹会向下有所偏转,这对实验结果______影响(选填“有”或“无”).14.某兴趣小组要测量木块与较粗糙木板之间的动摩擦因数,他们先将粗糙木板水平固定,再用另一较光滑的板做成斜面,倾斜板与水平板间由一小段光滑曲面连接,保证木块在两板间通过时速度大小不变.(1)使木块从相对水平木板高h处由静止滑下,并在水平板上滑行一段距离x后停止运动,改变h大小,进行多次实验,若忽略木块与倾斜板间的摩擦,以x为横坐标、h为纵坐标,从理论上得到的图象应为______;(2)如果考虑木块与倾斜板之间的摩擦,在改变h时,他们采取的办法是:每次改变倾斜板的倾角,让木块每次由静止开始下滑的位置在同一条竖直线上,且测出该竖直线与两板连接处的水平距离为l,如图甲所示.将每次实验得到的h、x相关数据绘制出的h﹣x图象如图乙所示,图线的延长线与两坐标轴的交点坐标分别为(﹣a,0)和(0,b),则木块与倾斜板间的动摩擦因数μ1=______,木块与水平板间的动摩擦因数μ2=______.(以上两空用a、b和l中的某些物理量表示)三、计算题(共3小题,满分37分)15.如图所示为圆弧形固定光滑轨道,a点切线方向与水平方向夹角53°,b点切线方向水平.一小球以水平初速度6m/s做平抛运动刚好能沿轨道切线方向进入轨道,已知轨道半径1m,小球质量1kg.(sin53=0.8,cos53=0.6,g=10m/s2)(1)求小球做平抛运动的飞行时间;(2)小球到达b点时,轨道对小球压力大小.16.宇宙中存在一些离其他恒星较远的两颗星组成的双星系统,通常可忽略其他星体对它们的引力作用.已知双星系统中星体1的质量为m,星体2的质量为2m,两星体相距为L,同时绕它们连线上某点做匀速圆周运动,引力常量为G.求该双星系统运动的周期.17.如图所示,有一水平桌面长L,套上两端开有小孔的外罩(外罩内情况无法看见),桌面上沿中轴线有一段长度未知的粗糙面,其它部分光滑,一小物块(可视为质点)以速度v0=从桌面的左端沿桌面中轴线方向滑入,小物块与粗糙面的动摩擦系数μ=0.5,小物体滑出后做平抛运动,桌面离地高度h以及水平飞行距离s均为(重力加速度为g)求:(1)未知粗糙面的长度X为多少?(2)若测得小物块从进入桌面到落地经历总时间为,则粗糙面的前端离桌面最左端的距离?(3)粗糙面放在何处,滑块滑过桌面用时最短,该时间为多大?《必修2》复习卷寒假作业1参考答案与试题解析一、选择题(共12小题,每小题4分,满分48分.在每小题给出的四个选项中,第1~8题只有一项符合题目要求;第9~12题有多项符合题目要求。

人教版高中英语必修二高一寒假作业英语7Word版含答案

人教版高中英语必修二高一寒假作业英语7Word版含答案

高中英语学习材料(灿若寒星*制作整理)高一英语寒假作业(七)2014.1满分:150分时间:120分钟第Ⅰ卷(选择题共95分)第一部分:英语知识运用(共四节,满分55分)第一节语音知识(共5小题,每小题1分,满分5分)从A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项,并在答题卡上将该选项涂黑。

1. tr a nsport A. f in a lly B. v a lley C. org a nize D. n a tion2. nat i ve A. i tem B. i gnore C. i dentity D. headl i ne3. ou tline A. r ou te B. tr ou ble C. c ou sin D. m ou ntain4. c yclist A. par c el B. c ave C. c anal D. res c ue5. ear th quake A. al th ough B. benea th C. wea th er D. th ese第二节情景对话(共5小题,每小题1分,满分5分)根据对话情景和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项,并在答题卡上将该选项涂黑。

选项中有两个为多余选项。

Tom: Is it true that you don’t swim at all now?Sally: I’m afraid so. 6 .Tom: But you are only twenty!Sally: 7 If I swam in an international competition now, I wouldn’t win.So I’d rather not swim at all.Tom: 8 .Sally: I used to when I was small. 9 ! I used to get up at 6 am to go to school. I had to train before school, after school and at weekends. I swam thirty-five miles every week!Tom: But you were famous at fifteen. 10 .Sally: It’s true that I have some wonderful memories. I enjoyed visiting other countries. But I missed more important things.A. I will win.B. I’m too old!C. I am too tired.D. Look at those unforgettable cups.E. That’s too old for a swimmer.F. D on’t you enjoy swimming?G. But if you enter for big competitions, you have to work very hard.第三节语法和词汇知识(共15小题,每小题1分,满分15分)从每小题的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项涂黑。

高一数学必修1和2寒假作业含答案解析

高一数学必修1和2寒假作业含答案解析

高一年级寒假课程学习效果验收考试数学试卷考生注意:1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,共4页.2.答卷前,考生务必用蓝、黑色字迹的钢笔或圆珠笔将自己的姓名、班级和学号填写在相应位置上.3.本次考试时间120分钟,满分150分.第Ⅰ卷(共60分)一、选择题(本大题共12小题,每小题5分,共60分.在每小题给出的四个选项中,只有一项是符合题目要求的)1.满足A ∪{-1,1}={-1,0,1}的集合A 共有( )A .2个B .4个C .8个D .16个2.下列函数中,既是偶函数又在区间(-∞,0)上单调递增的是( )A .f (x )=1x 2B .f (x )=x 2+1C .f (x )=x 3D .f (x )=2-x 3.如果直线ax +3y +1=0与直线2x +2y -3=0互相垂直,那么a 的值等于( )A .3B .-13C .-3 D.134.已知正方形的周长为x ,它的外接圆的半径为y ,则y 关于x 的解析式为( )A .y =12x B .y =24x C .y =28x D .y =216x 5.方程x -1=lg x 必有一个根的区间是( )A .(0.1,0.2)B .(0.2,0.3)C .(0.3,0.4)D .(0.4,0.5) 6.已知f (x )=⎩⎪⎨⎪⎧ x 2, (x >0),2,(x =0),0,(x <0),则f {f [f (-2)]}的值为( ) A .0 B .2C .4D .87.某单位职工工资经过六年翻了三番,则每年比上一年平均增长的百分率是( )(下列数据仅供参考:2=1.41,3=1.73,33=1.44,66=1.38)A .38%B .41%C .44%D .73% 8.比较1.513.1、23.1、213.1的大小关系是( ) A .23.1<213.1<1.513.1 B .1.513.1<23.1<213.1C .1.513.1<213.1<23.1 D .213.1<1.513.1<23.1 9.过球的一条半径的中点,作垂直于该半径的平面,则所得截面的面积是球的表面积的( ) A.316B.916C.38D.5810.已知直线l 过圆x 2+(y -3)2=4的圆心,且与直线x +y +1=0垂直,则l 的方程是( )A .x +y -2=0B .x -y +2=0C .x +y -3=0D .x -y +3=011.平面α截球O 的球面所得圆的半径为1,球心O 到平面α的距离为2,则此球的体积为( ) A.6πB .43πC .46πD .63π12.如图所示,将等腰直角△ABC 沿斜边BC 上的高AD 折成一个二面角,此时∠B ′AC =60°,那么这个二面角大小是( )A .90°B .60°C .45°D .30°第Ⅱ卷(共90分)二、填空题(本大题共4小题,每小题5分,共20分.把答案填在题中横线上)13.方程x 2+y 2-x +y +m =0表示一个圆,则m 的范围是________.14.下列四个命题:①若a ∥b ,a ∥α,则b ∥α;②若a ∥α,b ⊂α,则a ∥b ;③若a ∥α,则a 平行于α内所有的直线;④若a ∥α,a ∥b ,b ⊄α,则b ∥α.其中正确命题的序号是________.15.已知函数f (x )=⎩⎪⎨⎪⎧log 2x ,x >0,2x ,x ≤0.若f (a )=12,则a =______. 16.某几何体的三视图如图所示,则该几何体的体积为________.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.(10分)已知集合A ={x ||x -a |<4},B ={x |x 2-4x -5>0}.(1)若a =1,求A ∩B ;(2)若A ∪B =R ,求实数a 的取值范围.18.(12分)设直线l 的方程为(a +1)x +y +2-a =0(a ∈R ).(1)若l 在两坐标轴上的截距相等,求l 的方程.(2)若l 不经过第二象限,求实数a 的取值范围.19.(12分)已知圆C :x 2+y 2+2x -4y +3=0.(1)若圆C 的切线在x 轴和y 轴上的截距相等,且截距不为零,求此切线的方程;(2)从圆C 外一点P (x 1,y 1)向该圆引一条切线,切点为M ,O 为坐标原点,且有|PM |=|PO |,求使得|PM |取得最小值的点P 的坐标.20.(12分)已知f (x )为定义在[-1,1]上的奇函数,当x ∈[-1,0]时,函数解析式f (x )=14x -a 2x (a ∈R ). (1)写出f (x )在[0,1]上的解析式;(2)求f (x )在[0,1]上的最大值.21.(12分)如图,在三棱柱ABC —A 1B 1C 1中,AA 1⊥BC ,∠A 1AC =60°,A 1A=AC =BC =1,A 1B = 2.(1)求证:平面A 1BC ⊥平面ACC 1A 1;(2)如果D 为AB 中点,求证:BC 1∥平面A 1CD .22.(12分)如图,在三棱柱ABC -A 1B 1C 1中,侧棱垂直于底面,AB ⊥BC ,AA 1=AC =2,BC =1,E ,F 分别是A 1C 1,BC 的中点.(1)求证:平面ABE ⊥平面B 1BCC 1;(2)求证:C 1F ∥平面ABE ;(3)求三棱锥E -ABC 的体积.详解答案1.B [由题意知A ={0}或A ={0,-1}或A ={0,1}或A ={-1,0,1},共4个.故选B.]2.A [A 中f (x )=1x 2是偶函数,且在(-∞,0)上是增函数,故A 满足题意.B 中f (x )=x 2+1是偶函数,但在(-∞,0)上是减函数.C 中f (x )=x 3是奇函数.D 中f (x )=2-x 是非奇非偶函数.故B ,C ,D 都不满足题意.]3.C [由两直线垂直可得2a +3×2=0,所以a =-3,故选C.]4.C [正方形的对角线长为24x ,从而外接圆半径为y =12×24x =28x .] 5.A [设f (x )=lg x -x +1,f (0.1)=lg0.1-0.1+1=-0.1<0,f (0.2)=lg0.2-0.2+1≈0.1>0, f (0.1)f (0.2)<0.]6.C [∵-2<0,∴f (-2)=0,∴f [f (-2)]=f (0)=2>0,f {f [f (-2)]}=f (2)=4.故选C.]7.B [设职工原工资为p ,平均增长率为x ,则p (1+x )6=8p ,x =68-1=2-1=41%.]8.D [∵1.513.1=1.5-3.1=(11.5)3.1, 213.1=2-3.1=(12)3.1, 又幂函数y =x 3.1在(0,+∞)上是增函数,12<11.5<2, ∴(12)3.1<(11.5)3.1<23.1,故选D.] 9.A [如图所示的过球心的截面图,r =R 2-14R 2=32R , S 圆S 球=π(32R )24πR 2=316.] 10.D [圆x 2+(y -3)2=4的圆心为点(0,3),又因为直线l 与直线x +y +1=0垂直,所以直线l 的斜率k =1.由点斜式得直线l :y -3=x -0,化简得x -y +3=0.]11.B [利用截面圆的性质先求得球的半径长.如图,设截面圆的圆心为O ′,M 为截面圆上任一点,则OO ′=2,O ′M =1, ∴OM =(2)2+1=3,即球的半径为3,∴V =43π(3)3=43π.] 12.A [连接B ′C ,则△AB ′C 为等边三角形,设AD =a ,则B ′D =DC =a ,B ′C =AC =2a ,所以∠B ′DC =90°.]13.(-∞,12) 解析 D 2+E 2-4F =(-1)2+12-4m >0,得m <12. 14.④解析 ①中b 可能在α内;②a 与b 可能异面或者垂直;③a 可能与α内的直线异面或垂直. 15.2或-1解析 当a >0时,log 2a =12,则a =2;当a ≤0时,2a =12,则a =-1. 16.24解析 由俯视图可以判断该几何体的底面为直角三角形,由正视图和左视图可以判断该几何体是由直三棱柱(侧棱与底面垂直的棱柱)截取得到的.在长方体中分析还原,如图(1)所示,故该几何体的直观图如图(2)所示.在图(1)中,V 棱柱ABC -A 1B 1C 1=S △ABC ·AA 1=12×4×3×5=30,V 棱锥P -A 1B 1C 1=13S △A 1B 1C 1·PB 1=13×12×4×3×3=6.故几何体ABC -P A 1C 1的体积为30-6=24.故选C.17.解 (1)当a =1时,A ={x ||x -1|<4}={x |-3<x <5},x 2-4x -5>0⇒x <-1或x >5,则B ={x |x <-1或x >5}.A ∩B ={x |-3<x <-1}.(2)根据题意,得A ={x |a -4<x <a +4},B ={x |x <-1或x >5},若A ∪B =R ,则有⎩⎪⎨⎪⎧a -4<-1a +4>5, 解可得1<a <3,∴a 的取值范围是1<a <3.18.解 (1)令x =0,得y =a -2.令y =0,得x =a -2a +1(a ≠-1). 由a -2=a -2a +1,解得a =2,或a =0. ∴所求直线l 的方程为3x +y =0,或x +y +2=0.(2)直线l 的方程可化为y =-(a +1)x +a -2.∵l 不过第二象限,∴⎩⎪⎨⎪⎧-(a +1)≥0,a -2≤0. ∴a ≤-1.∴a 的取值范围为(-∞,-1].19.解 (1)∵切线在两坐标轴上的截距相等且截距不为零,∴设切线方程为x +y =a (a ≠0),又∵圆C :(x +1)2+(y -2)2=2,∴圆心C (-1,2)到切线的距离等于圆的半径2, ∴|-1+2-a |2=2⇒a =-1,或a =3,则所求切线的方程为x +y +1=0或x +y -3=0. (2)∵切线PM 与半径CM 垂直,∴|PM |2=|PC |2-|CM |2,∴(x 1+1)2+(y 1-2)2-2=x 21+y 21,∴2x 1-4y 1+3=0,∴动点P 的轨迹是直线2x -4y +3=0.|PM |的最小值就是|PO |的最小值,而|PO |的最小值为O 到直线2x -4y +3=0的距离d =3510.此时P 点的坐标为(-310,35). 20.解 (1)∵f (x )为定义在[-1,1]上的奇函数,且f (x )在x =0处有意义,∴f (0)=0, 即f (0)=140-a20=1-a =0.∴a =1.设x ∈[0,1],则-x ∈[-1,0].∴f (-x )=14-x -12-x =4x -2x.又∵f (-x )=-f (x ),∴-f (x )=4x -2x .∴f (x )=2x -4x .(2)当x ∈[0,1]时,f (x )=2x -4x =2x -(2x )2,∴设t =2x (t >0),则f (t )=t -t 2.∵x ∈[0,1],∴t ∈[1,2].当t =1时,取最大值,最大值为1-1=0.21.证明 (1)因为∠A 1AC =60°,A 1A =AC =1,所以△A 1AC 为等边三角形.所以A 1C =1.因为BC =1,A 1B =2,所以A 1C 2+BC 2=A 1B 2.所以∠A 1CB =90°,即A 1C ⊥BC .因为BC ⊥A 1A ,BC ⊥A 1C ,AA 1∩A 1C =A 1,所以BC ⊥平面ACC 1A 1.因为BC ⊂平面A 1BC ,所以平面A 1BC ⊥平面ACC 1A 1.(2) 连接AC 1交A 1C 于点O ,连接OD .因为ACC 1A 1为平行四边形,所以O 为AC 1的中点.因为D 为AB 的中点,所以OD ∥BC 1.因为OD ⊂平面A 1CD ,BC 1⊄平面A 1CD ,所以BC 1∥平面A 1CD .22.(1)证明 在三棱柱ABC -A1B 1C 1中,BB 1⊥底面ABC ,所以BB 1⊥AB .又因为AB ⊥BC ,所以AB ⊥平面B 1BCC 1,又AB ⊂平面ABE ,所以平面ABE ⊥平面B 1BCC 1.(2)证明 取AB 的中点G ,连接EG ,FG . 因为E ,F 分别是A 1C 1,BC 的中点,所以FG ∥AC ,且FG =12AC . 因为AC ∥A 1C 1,且AC =A 1C 1, 所以FG ∥EC 1,且FG =EC 1, 所以四边形FGEC 1为平行四边形. 所以C 1F ∥EG .又因为EG ⊂平面ABE ,C 1F ⊄平面ABE , 所以C 1F ∥平面ABE .(3)解 因为AA 1=AC =2,BC =1,AB ⊥BC , 所以AB =AC 2-BC 2= 3.所以三棱锥E -ABC 的体积V =13S △ABC ·AA 1 =13×12×3×1×2=33.。

人教版 化学必修二 全册内容 寒假作业含答案

人教版 化学必修二 全册内容  寒假作业含答案

绝密★启用前人教版化学必修二全册内容寒假作业本试卷分第Ⅰ卷和第Ⅱ卷两部分,共100分。

分卷I一、单选题(共10小题,每小题4.0分,共40分)1.原子团SCN化合价为-1价,在很多方面跟卤素原子相似,因此称为“拟卤素”。

拟卤素离子与卤离子还原性强弱顺序为Cl-<Br-<SCN-<I-,又知氧化性I2>S,下列反应不正确的是() A. (SCN)2+2Br-===Br2+2SCN-B. (SCN)2+H2S===2H++2SCN-+S↓C. 4H++2SCN-+MnO2Mn2++(SCN)2↑+2H2OD. (SCN)2+2I-===2SCN-+I22.乙酸与乙醇在浓硫酸催化作用下发生酯化反应,下列叙述正确的是()A.产物用饱和碳酸钠溶液吸收,下层得到有香味的油状液体B.反应中乙酸分子羟基上的氢原子被乙基(—C2H5)取代C.反应中乙醇分子的羟基被取代D.属于可逆反应3.欲使反应2A(g)2B(g)+E(g)的正反应速率降低,应采取的措施是()A.增大压强B.升高温度C.减小A的浓度D.增大B的浓度4.关于氩Ar的说法正确的是()A.质子数为18B.中子数为40C.质量数为58D.核外电子数为225.下列物质中属于天然高分子化合物的是()A.蛋白质B.蔗糖C.油脂D.麦芽糖6.下列说法中,正确的是()A.简单地说,金属的冶炼就是把金属单质从其矿物中分离出来B.金属冶炼过程中,被冶炼的金属只能被氧化C.金属冶炼过程中,被冶炼的金属只能被还原D.金属冶炼过程中,被冶炼的金属既可被氧化,也可被还原7.为了维持生命和健康,人要从食物中摄取营养素,下列物质中不属于营养素的是()A.葡萄糖B.食醋C.水D.芝麻油8.下列关于天然橡胶()的说法正确的是()A.天然橡胶的结构单元是B.合成天然橡胶的反应类型为化合反应C.天然橡胶是纯净物D.天然橡胶只可从自然界中获得,不可人工合成9.某小组在研究前18号元素时发现:依据不同的标准和规律,元素周期表有不同的排列形式。

新14年高二地理寒假作业-精选文档

新14年高二地理寒假作业-精选文档

新14年高二地理寒假作业
新14年高二地理寒假作业
查字典地理网为同学总结归纳了14年高二地理寒假作业。

希望对考生在备考中有所帮助,预祝大家寒假快乐。

一、选择题
1.适宜在松嫩平原上种植的农作物是
A.春小麦、玉米、大豆
B.冬小麦、大豆、甜菜
C.玉米、高粱、大豆
D.玉米、油菜、大豆
2关于松嫩平原和长江三角洲的叙述错误的是
A.松嫩平原生长期较长江三角洲长
B.松嫩平原的纬度高于长江三角洲
C.松嫩平原和长江三角洲都属于季风气候
D.松嫩平原的人口密度小于长江三角洲
3.下列关于南北方传统民居差异的说法,正确的是
A.南方民居墙体厚
B.南方民居屋顶坡度小
C.南方民居屋房檐宽
D.南方民居正南正北的方位观强
4.下列关于全球定位系统的叙述,不正确的是
A.全球定位系统就是GPS信号接收机
B.全球定位系统能为用户提供精密的三维坐标、速度和时间
C.具有全球性、全天候、实时性等特点
D.只要拥有GPS信号接收机就可以知道自己的位置
2018年9月26日凌晨4点今年第18号台风迭维登陆我国面
积最大的经济特区海南岛,台风给沿海地区带来强降雨,并引发了洪水。

洪水发生期间,一市民通过手持式信号发射器发出了紧急呼救信号,政府相关部门立即安排了救援行动。

半小时后,市民安全脱离洪水的围困。

完成56题。

以上就是14年高二地理寒假作业,希望能帮助到大家。

必修二寒假作业

必修二寒假作业

必修二寒假作业注意事项:1.本试卷满分72分,考试时间90分钟。

2.本试卷分为第I卷(选择题)和第II卷(非选择题)两部分。

3.请将第I卷(选择题)的答案填入第II卷上的第I卷答题栏中。

考试结束,只交第II卷。

第Ⅰ卷一、单项选择题(本题共30小题,每小题只有一项最符合题意。

每小题1分,共30分)1.将分离后的S型肺炎双球菌的蛋白质与R型肺炎双球菌混合,注射到小老鼠体内,一段时间后,从小老鼠体内能够直接分离出来的是()A. S型肺炎双球菌B.R型肺炎双球菌DNAC.S型肺炎双球菌DNAD. R型肺炎双球菌2.下列关于生物遗传物质的叙述中,哪一项是正确的()A.细胞生物的遗传物质是DNA,非细胞生物的遗传物质是RNAB.细胞核内的遗传物质是DNA,细胞质内的遗传物质是RNAC.“肺炎双球菌的转化实验”和“噬菌体侵染细菌的实验”都证明了DNA是主要的遗传物质D.真核生物、原核生物和大多数病毒的遗传物质是DNA,少数病毒的遗传物质是RNA 3.噬菌体在增殖过程中利用的原料是()A.噬菌体的核苷酸和氨基酸 B.噬菌体的核苷酸和细菌的氨基酸C.细菌的核苷酸和氨基酸 D.噬菌体的氨基酸和细菌的核苷酸4.构成烟草花叶病毒、噬菌体和烟草体内核酸的碱基种类依次是()A. 8、4、2 B. 8、4、4 C. 4、4、5 D. 4、4、415.下图为DNA分子结构示意图,对该图的描述正确的是()B.④的名称是鸟嘌呤脱氧核苷酸C.当DNA复制时,⑨的形成需要DNA连接酶D.图中DNA分子中特定的脱氧核苷酸序列代表了遗传信息6.下列关于密码子的叙述中,错误的...是()A.一种氨基酸可能有多种与之对应的密码子B.GTA肯定不是密码子C.每种密码子都有与之对应的氨基酸D.信使RNA上的GCA在人细胞中和猪细胞中决定的是同一种氨基酸7.已知某tRNA上的反密码子是GAU,它所转运的是亮氨酸,那么决定此氨基酸的密码子是由下列哪个碱基序列转录而来? ()A.GAT B.GAU C.CUA D.CTA8.有关蛋白质合成的叙述,不正确的是()A.终止密码子不编码氨基酸 B.每种tRNA只运转一种氨基酸C.运载氨基酸的tRNA共有三个碱基 D.核糖体可在mRNA上移动9. 已知病毒的核酸有双链DNA、单链DNA、双链RNA、单链RNA四种类型。

【广东省2014届高三寒假作业英语(二) Word版含答案

【广东省2014届高三寒假作业英语(二) Word版含答案

绝密★启用前高三英语寒假作业一、单项选择(共15小题;每小题1分,满分15分)1.——Wow! Jane , you’re slim again.——Yes, I have been on a special these days.A、tripB、dietC、holidayD、stage2.All the soldiers were placed exactly the local government wanted them for the control of the comeback of the flood.A、whileB、whenC、whereD、though3.Sorry, I have no time left now, Can we discuss the matter________supper?A、overB、onC、byD、atks5u4.——Thank you very much for everything , You’ve been so helpful.——, Just let me know if there is anything else I can do for you.A、With pleasureB、My pleasureC、Please don’t say soD、Never mind5.——Mr , Harry, we want to hear what you think about the reform being carried out in our school.——OK, I to that.A、am comingB、have comeC、whichD、As6.As simple and convenient way to get Latest fashions online, online shop-ping also has major problem—you can’t see whether they fit or not.A、the; theB、不填;theC、the; aD、不填;不填7.______ on ten years of observation and study, the theory shows that every one dreams every night, whether they realized it or not.A. BasingB. BasedC. Being basedD. Having based8.——Why do you hang that photograph above the fireplace?——visitors of the memorial days of long March, Sir.A、RemindingB、To remindC、RemindedD、Reminds9.Traveling is a good way to different cultures and broaden the mind.A. expandB. exploreC. exposeD. export10.Every minute has been made full ______ of by the girls ______ knowledge about etiquertte.A. using; learningB. use; to learnC. to use; to learnD. use; learning11.Jim told us all that _______ he said so at the meeting was right.A. allB. whatC. all thatD. that12. your pets inside as much as you can when the weather is bad.A. KeepB. KeepingC. KeptD. To keep13.Everyone in the village hoped that he would ______ after a few days’ treatment.A. pick upB. come upC. keep upD. make up14.—I’ll do the washing-up. Jack, would you please do the floors?—_______.A. Yes, pleaseB. No, I don’tC. Yes, sureD. No, not at all15.Let Harry play with your toy as well, Clare, you must learn to .A. supportB. careC. spareD. share二、完形填空(共15小题,每小题2分,满分30分)阅读下面短文,从短文后所给各题的A、B、C、D四个选项中,选出最佳选项。

安徽省2014届高三寒假作业 数学2 含答案

安徽省2014届高三寒假作业 数学2 含答案

高三数学寒假作业2一、选择题1.复数11-+i i =( )A .iB .i -C .i +1D .i -12.==+x x x 2sin ,51cos sin 则( )A .2524B .2512C .2524-D .2512-3.已知等差数列=-2431,,,,2}{a a a a a n则成等比数列若的公差为( ) A .4 B .6 C .8 D .-44.6)1(xx -的展开式中常数项为( )A .15B .-15C .20D .—205.已知a 、b 表示两条不同的直线,βα,表示两个不同的平面,则下列命题正确的是( )A .若b a b a //,//,//,//则βαβαB .若βαβα//,//,,则b a b a ⊂⊂C .若b a b a //,,,则βαβα⊥⊥⊥D .若βαβα⊥⊥⊥⊥则,,,b a b a 6. 已知等比数列{na }的前n 项和为nS ,且317Sa =,则数列{}n a 的公比q 的值为( )A .2B .3C .2或-3D .2或37. 平面向量(,3),(2,1),(1,)a x b c y =-=-=,若(),//()a b c b a c ⊥-+则b 与c 的夹角为( )A .0B .4πC .2πD .34π8.已知双曲线x y a y ax 15)0(12222=>=-的一条准线经过抛物线的焦点,则该双曲线的渐近线方程为( )A .x y 1515±= B .x y 15±= C .x y 15±=D .x y 151±=9.条件2:0,1x xp x +≥- 条件1:,q x x> 则p q ⌝⌝是的( )A .充分不必要条件B .必要不充分条件C .充要条件D .既不充分也不必要条件 二、填空题:10.设随机变量ξ服从正态分布N (0,1),若=<<-=>)01(,)1(ξξP p P 则.11.若平面区域D的点⎩⎨⎧-≥≤+2||,22),(x y y x y x 满足不等式组则平面区域D 的面积为 。

人教版 化学必修二 综合 寒假作业含答案

人教版 化学必修二 综合 寒假作业含答案

绝密★启用前人教版化学必修二综合寒假作业本试卷分第Ⅰ卷和第Ⅱ卷两部分,共100分。

分卷I一、单选题(共10小题,每小题4.0分,共40分)1.氧化还原反应广泛应用于金属的冶炼。

下列说法不正确的是()A.电解熔融NaCl制取金属钠的反应中,钠离子被还原,氯离子被氧化B.湿法炼铜与火法炼铜的反应中,铜元素都发生还原反应C.用磁铁矿炼铁的反应中,1 mol Fe3O4被CO还原成Fe,转移9 mol e-D.铝热法还原铁的反应中,放出的热量能使铁熔化2.下列说法正确的是()A.化学反应速率只能加快不能减慢B.增加反应物的用量一定能增大反应速率C.同质量的镁和铝分别与同浓度盐酸反应剧烈程度相同D.反应物的性质是决定化学反应速率的主要因素3.下列关于原电池的叙述,正确的是()A.构成原电池的正极和负极材料必须是两种活泼性不同的金属B.原电池是将化学能转变为电能的装置C.在原电池中,电子流出的一极是负极,该电极被还原D.原电池放电时,电流的方向是从负极到正极4.除去海水提溴得到的液溴中溶有的少量氯气,应该采用的方法是()A.加入适量的碘化钾溶液B.通入溴蒸气C.加氢氧化钠溶液D.加入适量的溴化钠溶液5.将一块金属钠投入到滴有紫色石蕊试液的盛冷水的烧杯中,甲同学认为可观察到下列现象,其中正确的有()①钠投入水中,先沉入水底,后浮出水面;②钠立即与水反应,并有气体产生;③反应后溶液变红;④钠熔成闪亮的小球;⑤小球在水面上四处游动;⑥有“嘶嘶”的响声发出A.①②③④B.②③④⑤C.②④⑤⑥D.③④⑥6.一定温度下,在2 L的密闭容器中,X、Y、Z三种气体的物质的量随时间变化的曲线如图所示,下列叙述正确的是()A.反应开始到10 s,用Z表示的反应速率为0.158 mol·L-1·s-1B. 10 s后,该反应停止进行C.反应的化学方程式为2X(g)+Y(g)2Z(g)D. 0~10 s的时间内的平均反应速率:v(X)=v(Y)=0.039 5 mol·L-1·s-17.下列关于麦芽糖与蔗糖的比较错误的是()A.它们的分子式相同B.它们的分子结构不同C.它们互为同分异构体D.它们互为同系物8.下列说法正确的是()A.碱性:LiOH>NaOH>KOH>RbOHB.金属性:Rb>K>Na>LiC.铷比钾活泼,铷能从氯化钾溶液中置换出钾D.铷不易与水反应放出氢气9.在光照条件下,氯气跟乙烷发生化学反应,下列叙述中正确的是()A.发生的是取代反应B.发生的是氧化反应C.产物只有一氯乙烷和氯化氢D.常温下,产物都是气体10.已知X、Y、Z是三种原子序数相连的元素,最高价氧化物对应水化物酸性相对强弱的顺序是HXO4>H2YO4>H3ZO4,则下列判断正确的是()A.气态氢化物的稳定性:HX>H2Y>ZH3B.非金属活泼性:Y<X<ZC.原子半径:X>Y>ZD.原子最外层电子数:X<Y<Z二、双选题(共4小题,每小题5.0分,共20分)11.在常温常压下,甲烷和足量氧气的混合气体57 mL,点燃爆炸后,剩余气体为23 mL(恢复到原来状况时)。

高一年级(必修二)寒假作业Word版含解析

高一年级(必修二)寒假作业Word版含解析

高一年级(必修二)寒假作业一、 选择题(每小题5分,共60分)1.设m 、n 是两条不同的直线,α、β是两个不同的平面,则下列命题不正确的是( ) A .若m ⊥n ,m ⊥α,n ⊄α,则n ∥α B .若m ⊥β,α⊥β,则m ∥α或m ⊂α C .若m ⊥n ,m ⊥α,n ⊥β,则α⊥β D .若m ∥α,α⊥β,则m ⊥β2.已知α、β、γ是三个不同的平面,命题“α∥β,且α⊥γ⇒β⊥γ”是真命题,如果把α、β、γ中的任意两个换成直线,另一个保持不变,在所得的所有新命题中,真命题有( ) A .0个 B .1个 C .2 D .3个3.某几何体的三视图如图所示,则该几何体的表面积为( ) AC .4 D4、正四面体的内切球球心到一个面的距离等于这个正四面体高的 ( )A. B. C. D.5.如图,设平面α∩β=EF ,AB ⊥α,CD ⊥α,垂足分别是B 、D ,如果增加一个条件,就能推出BD ⊥EF ,这个条件不可能是下面四个选项中的( )A .AC ⊥βB .AC ⊥EF C .AC 与BD 在β内的射影在同一条直线上 D .AC 与α、β所成的角相等6.已知正四面体A -BCD ,设异面直线AB 与CD 所成的角为α,侧棱AB 与底面BCD 所成的角为β,侧面ABC 与底面BCD 所成的角为γ,则( )A .α>β>γB .α>γ>βC .β>α>γD .γ>β>α7.如图,在棱长为5的正方体ABCD -A1B1C1D1中,EF 是棱AB 上的一条线段,且EF =2,Q 是A1D1的中点,点P 是棱C1D1上的动点,则四面体P -QEF 的体积( )A .是变量且有最大值B .是变量且有最小值C .是变量且有最大值和最小值D .是常量8.如图所示,在长方体ABCD -A1B1C1D1中,AB =2,AD =3,AA1=26,点P 是B1C 的三等分点且靠近点C ,则异面直线AP 和DD1所成的角为( )A.π6 B .π4 C .π3 D .5π129.点P(-2,3)且与两坐标轴围成的三角形面积为24的直线共有( )A .1条B .2条C .3条D .4条10.如图,四边形ABCD 中,AB =AD =CD =1,BD =2,BD ⊥CD .将四边形ABCD 沿对角线BD 折成四面体A′-BCD ,使平面A′BD⊥平面BCD ,则下列结论正确的是()A .A′C⊥BDB .∠BA′C=90°C .CA′与平面A′B D.所成的角为30°11.直三棱柱ABC -A1B1C1的所有顶点都在半径为2的球面上,AB =AC =3,AA1=2,则二面角B -AA1-C 的余弦值为( )A .-13B .-12 C.13 D .1212.已知正方形ABCD 的边长为22,将△ABC 沿对角线AC 折起,使平面ABC⊥平面ACD ,得到如右图所示的三棱锥B -ACD.若O 为AC 边的中点,M 、N 分别为线段DC 、BO 上的动点(不包括端点),且BN =CM.设BN =x ,则三棱锥N -AMC 的体积y =f(x)的函数图象大致是( )二、 填空题13. 已知经过点A(a ,2),B(-a ,2a -1)的直线的倾斜角为α且45° <α<135°,则实数a 的取值范围________14.一圆台上底半径为5cm,下底半径为10cm,母线AB 长为20cm,其中A 在上底面上,B 在下底面上,从AB 中点M 拉一条绳子,绕圆台的侧面一周转到B 点,则这条绳子最短长为 _________。

必修2寒假作业一(含答案)

必修2寒假作业一(含答案)

假期作业一1.对一个四分体的叙述,不正确的是()A.有两个着丝点 B.有四个DNA分子 C.有两对姐妹染色单体 D.有四个染色体2.人的精巢中的精原细胞所进行的分裂为()①有丝分裂②无丝分裂③减数分裂A. ①B. ③C. ①②③ D.①③3.下列减数分裂过程按时间顺序排列,正确的是()A.复制—联会—四分体B.复制—四分体—联会C.联会—四分体—复制D.联会—复制—四分体4.观察四分体最好的材料是()A.幼嫩的种子 B.幼嫩的果实 C.幼嫩的花药 D.幼嫩的柱头5.一条复制过的染色体,其着丝点数、染色单体数和DNA数依次为()A.2,2,4 B.1,2,2 C.1,4,4 D.2,2,26.细胞内没有同源染色体的是()A.体细胞 B.精原细胞 C.初级精母细胞 D.次级精母细胞7.动物的卵细胞的形成与精子形成过程的不同点是()①次级卵母细胞将进行普通的有丝分裂②一个卵原细胞最终分裂只形成一个卵细胞③一个卵原细胞经复制后形成一个初级卵母细胞④卵细胞不经过变形阶段⑤一个初级卵母细胞分裂成的两个细胞大小不等⑥卵细胞中的染色体数目是初级卵母细胞的一半A.②④⑤ B.①③⑤ C.②③⑥ D.①④⑥8.减数分裂第二次分裂后期,下列各组中数量比例是1:1的是()A.染色体和染色单体 B.染色体和DNA分子C.DNA分子和染色单体 D.DNA分子和染色单体9.下列不是人体细胞的有丝分裂与减数分裂的共同特点是()A.有纺锤体出现 B.有同源染色体出现 C.有同源染色体联会 D.有着丝点分裂10.DNA含量与正常体细胞相同,但不含同源染色体的细胞是()A.精子 B.受精卵 C.次级精母细胞 D.初级卵母细胞11.100个精原细胞和100个卵原细胞,经减数分裂产生的精子和卵细胞结合,最多能形成多少个受精卵?()A.100 B.200 C.300 D.40012.一正常女性与一色盲男性婚配,生了一个白化病色盲的女孩。

这对夫妇的基因型是:A.AaX B X b 、AaX B Y B. AaX B X b 、aaX b YC. AAX B X b 、AaX b YD. AaX b X b 、AaX b Y13.豌豆子叶的黄色(Y)、圆粒种子(R)均为显性,两亲本杂交的F1表型如右图。

高一数学(必修二)寒假作业(立体几何)Word版含答案

高一数学(必修二)寒假作业(立体几何)Word版含答案

高一数学(必修二)寒假作业(立体几何)第Ⅰ卷(选择题,48分)一、选择题(本大题共12小题,每小题4分,共48分,在每小题给出的四个选项中,只有一项符合题目要求。

)1.若α、β是不重合的平面,a 、b 、c 是互不相同的空间直线,则下列命题中为真命题的是 ( ) ① 若α//a ,α//b ,则b a // ; ② 若α//c ,α⊥b ,则b c ⊥ ; ③ 若α⊥c ,β//c ,则βα⊥ ;④ 若α⊂b ,α⊂c 且b a ⊥,c a ⊥,则α⊥a A.③④ B. ①② C. ①④ D. ②③2.下列四个命题:①平行于同一平面的两条直线相互平行 ②平行于同一直线的两个平面相互平行 ③垂直于同一平面的两条直线相互平行 ④垂直于同一直线的两个平面相互平行 其中正确的有A .4个 B.3个 C.2个 D.1个3.某几何体的三视图如图所示,则该几何体的体积为( )A 、163πB 、203πC 、403πD 、5π4.已知正四棱锥的各棱棱长都为23,则正四棱锥的外接球的表面积为( ) A .π12B .π36C .π72D .π1085.某几何体的三视图如图所示,则该几何体的体积为A.168π+B.88π+C.1616π+D.816π+6..a ,b 表示空间不重合两直线,α,β表示空间不重合两平面,则下列命题中正确的是( )A.若α⊂a ,β⊂b ,且b a ⊥,则βα⊥B.若βα⊥,α⊂a ,β⊂b 则b a ⊥C.若α⊥a ,β⊥b ,βα//则b a //D.若βα⊥,α⊥a ,β⊂b ,则b a //7.下列命题中为真命题的是( ) A .平行于同一条直线的两个平面平行 B .垂直于同一条直线的两个平面平行C .若—个平面内至少有三个不共线的点到另—个平面的距离相等,则这两个平面平行.D .若三直线a 、b 、c 两两平行,则在过直线a 的平面中,有且只有—个平面与b ,c 均平行.8.如图是一个组合几何体的三视图,则该几何体的体积是 . A 36128π+ B 3616π+ C 72128π+ D 7216π+9.设l ,m 是两条不同的直线,α是一个平面,则下列命题正确的是( ) A .若l m ⊥,m α⊂,则l α⊥ B .若l α⊥,l m //,则m α⊥ C .若l α//,m α⊂,则l m // D .若l α//,m α//,则l m //10.已知某几何体的三视图如右图所示,其中,主(正)视图,左(侧)视图均是由直角三角形与半圆构成,俯视图由圆与内接直角三角形构成,根据图中的数据可得此几何体的 体积为( )16+ (B) 4136π+12+ (D)2132π+11.已知圆柱1OO 底面半径为1,高为π,ABCD 是圆柱的一个轴截面.动点M 从点B 出发沿着圆柱的侧面到达点D ,其距离最短时在侧面留下的曲线Γ如图所示.现将轴截面ABCD 绕着轴1OO 逆时针旋转 (0)θθπ<≤后,边11B C 与曲线Γ相交于点P ,设BP 的长度为()f θ,则()y f θ=的图象大致为( )12.某三棱锥的侧视图和俯视图如图--1所示,则该三棱锥的体积为( )A .4 3B .8 3C .12 3D .243第Ⅱ卷(非选择题,共72分)二、填空题(本大题共4个小题,每小题4分,共16分)13.如图,在三棱柱ABC C B A -111中, F E D ,,分别是1AA AC AB ,,的中点,设三棱锥ADE F -的体积为1V ,三棱柱ABC C B A -111的体积为2V ,则=21:V V _____.14. 已知圆的方程为22680x y x y +--=.设该圆过点(3,5)的最长弦和最短弦分别为AC 和BD ,则四边形ABCD 的面积为 .15.如右图为长方体积木块堆成的几何体的三视图,此几何体共由________块木块堆成..ABC1ADE F1B1C16.已知某个几何体的三视图如图(正视图中的弧线是半圆),图中标出的尺(单位:㎝), 可得这个几何体表面是 cm 2。

寒假作业(必修1,必修2含答案)

寒假作业(必修1,必修2含答案)

高一数学寒假作业(必修1、必修2)高一寒假作业第1天 集合1.设集合{1,0,1}M =-,2{}N x x x ==,则MN =( )A .{1,0,1}-B .{0,1}C .{1}D .{0}2.设集合{1,2,3,4,5,6}U =,{1,3,5}M =,则U M =ð( )A .{2,4,6}B .{1,3,5}C .{1,2,4}D .U3.已知集合2{230}A x x x =--=,那么满足B A ⊆的集合B 有( )A . 1个B . 2个C . 3个D . 4个4.若集合{1,1}A =-,{0,2}B =,则集合{,,}z z x y x A y B =+∈∈中的元素的个数为( ) A .5 B .4 C .3 D .25.设集合{,}A a b =,{,,}B b c d =,则AB =( )A .{}bB .{,,}b c dC .{,,}a c dD .{,,,}a b c d6.已知集合{0,1,3}M =,{}|3,N x x a a M ==∈,则集合M N =( )A .{0}B .{0,1}C . {0,3}D . {1,3}7.已知集合A 满足{1,2}A ⊆,则集合A 的个数为( )A .4B .3C .2D .18.已知集合{(,)0,,}A x y x y x y R =+=∈,{(,)0,,}B x y x y x y R =-=∈,则集合A B =( )A .)0,0(B .{}0C .{})0,0(D .∅9.已知全集R,U = 集合{}1,2,3,4,5A =,[2,)B =+∞,则图中阴影部分所表示的集合为( ) A . {0,1,2} B . {0,1}C . {1,2}D . {1}10.已知集合1,24k M x x k Z ⎧⎫==+∈⎨⎬⎩⎭,1,42k N x x k Z ⎧⎫==+∈⎨⎬⎩⎭,若0x M ∈,则0x 与N 的关系是( )A .0x N ∈B .0x N ∉C . 0x N ∈ 或0x N ∉D .不能确定11.已知集合A ={|25}x x -<≤,}121|{-≤≤+=m x m x B 且A B A =,求实数m 的取值范围.12.设S 为满足下列两个条件的实数所构成的集合:①S 内不含1; ②若a S ∈,则11S a∈- 解答下列问题:(1)若2S ∈,则S 中必有其他两个元素,求出这两个元素; (2)求证:若a S ∈,则11S a-∈; (3)在集合S 中元素的个数能否只有一个?请说明理由.高一寒假作业第2天 函数的概念1.函数y =) A .(,1]-∞- B .(,1)-∞- C .[1,)-+∞D .(1,)-+∞2.已知函数2y x x =-的定义域为{0,1,2},那么该函数的值域为( ) A .{0,1,2} B .{0,2}C .1{|2}4y y -≤≤ D .{|02}y y ≤≤3.函数2log (1)y x =-的定义域为( ) A .{|1}x x >B .{|1}x x ≥C .{|12}x x x ≥≠且D .R4.函数222, [0,3],()6, [2,0)x x x f x x x x ⎧-∈⎪=⎨+∈-⎪⎩的值域是( )A .RB .[9,)-+∞C .[8,1]-D .[9,1]-5.函数21,12<≤-+-=x x y 的值域是( )A .(3,0]-B . (3,1]-C . [0,1]D . [1,5)6.设函数211()21x x f x x x⎧+≤⎪=⎨>⎪⎩,则=))3((f f ( )A .15 B .3 C .23 D .1397.已知函数f (x )的图象如图所示,则此函数的定义域、值域分别是( )A .(3,3)-,(2,2)-B .[3,3]-,[2,2]-C .[2,2]-,[3,3]-D .(2,2)-,(3,3)-8.已知x ∈R ,用[]x 表示不超过x 的最大整数,记{}[]x x x =-,若(0, 1)a ∈,则{}a 与1{}2a +的大小关系是( )A .不确定(与a 的值有关)B .{}a <1{}2a +C .{}a =1{}2a +D .{}a >1{}2a +9.函数y =的定义域为 . 10.集合}4,3{=A ,}7,6,5{=B ,集合A 到集合B 的映射共有 个.11.已知()f x 是二次函数,若(0)0f =,且(1)()1f x f x x +=++,求函数()f x 的解析式.12.若函数21()2f x x x a =-+的定义域和值域均为[1,](1)b b >,求a 、b 的值.高一寒假作业第3天 函数的单调性1.函数2y x =+在区间[3,0]-上( )A .递减B .递增C .先减后增D .先增后减2.下列函数中,在区间(0,)+∞上为增函数的是( )A .ln(2)y x =+ B.y = C .1()2xy = D .1y x x=+3.已知()f x 是定义在(0,)+∞上的单调递增函数,且满足(32)(1)f x f -<,则实数x 的取值范围是( ) A . (,1)-∞ B . 2(,1)3 C .2(,)3+∞ D . (1,)+∞ 4.已知)(x f 在R 上是减函数,若0≤+b a ,则下列正确的是( ) A .)]()([)()(b f a f b f a f +-≤+ B .)()()()(b f a f b f a f -+-≤+ C .)]()([)()(b f a f b f a f +-≥+ D .)()()()(b f a f b f a f -+-≥+ 5.函数322-+=x x y 的单调减区间是( )A .]3,(--∞B .),1[+∞-C .]1,(--∞D .),1[+∞ 6.定义在R 上的偶函数()f x 满足:对任意的正实数1x ,212()x x x ≠,恒有1212()()0f x f x x x -<-.则( ) A .(3)(2)(1)f f f <-< B .(1)(2)(3)f f f <-< C .(2)(1)(3)f f f -<< D .(3)(1)(2)f f f <<- 7.函数21()1f x x x =-+的最大值是 ( ) A .45 B .54 C .34 D .438.若函数⎪⎩⎪⎨⎧<-≥-=2,1)21(,2,)2()(x x x a x f x 是R 上的单调递减函数,则实数a 的取值范围为( )A .)2,(-∞B .]813,(-∞C .)2,0(D .)2,813[9.函数1()1f x x =-在[2,3]上的最小值为______,最大值为______.10.函数1y x x =--的单调增区间为________.11.已知函数()y f x =在定义域为[1,1]-是减函数,且(1)(21)f a f a -<-,求a 的取值范围.12.已知函数11()(0,0)f x a x a x=->>. (1)求证:()f x 在(0,)+∞上是单调递增函数;(2)若()f x 在1[,2]2上的值域是1[,2]2,求a 的值.高一寒假作业第4天 奇偶性1.函数3()2f x x =的图象( )A .关于y 轴对称B .关于x 轴对称C .关于直线y x =对称D .关于原点对称2.下列函数为偶函数的是( )A .2y x =B .3y x =C .x y e =D .lny =3.已知函数()1x x f x e e -=-+ (e 是自然对数的底数),若()2f a =,则()f a -=( ) A .3 B .2 C .1 D .04.设函数0()(),0x f x g x x ≥=<⎪⎩ ,若()f x 是奇函数,则(4)g -的值是( )A .2-B .12-C .14- D .2 5.下列函数中,既是奇函数又是增函数的为( ) A .1y x =+ B .3y x =- C .1y x=D .||y x x = 6.已知奇函数()f x 在R 上单调递增,且1(21)()02f x f -+<. 则x 的取值范围为( ) A .1(,)4-∞ B .1(,)4+∞ C .3(,)4-∞ D .3(,)4+∞7.已知函数2221,0()21,0x x x f x x x x ⎧+-≥=⎨--<⎩,则对任意12,x x R ∈,若120x x <<,下列不等式成立的是( )A .12()()0f x f x +<B . 12()()0f x f x +>C .12()()0f x f x ->D .12()()0f x f x -<8.奇函数()f x 在(0,)+∞上单调递增,若(1)0f =,则不等式[()()]0x f x f x --<的解集是( ) A .(1,0)(1,)-+∞ B .(,1)(0,1)-∞-C .(,1)(1,)-∞-+∞ D .(1,0)(0,1)-9.函数)4)(()(-+=x a x x f 为偶函数,则实数a = .10.已知()y f x =是奇函数,若()()2g x f x =+且(1)1g =,则(1)g -= .11.已知函数2()(0,)af x x x a R x=+≠∈ (1)判断函数()f x 的奇偶性;(2)若()f x 在区间[)+∞,2是增函数,求实数a 的取值范围.12.已知函数)(x f 是定义在R 上的单调函数满足(3)2f -=,且对任意的实数R a ∈有0)()(=+-a f a f 恒成立.(1)试判断)(x f 在R 上的单调性,并说明理由; (2)解关于x 的不等式2)2(<-xxf .高一寒假作业第5天 指数与指数函数1.函数21(0,1)x y aa a -=+>≠的图象必经过点( )A .(0,1)B .(2,1)C .(2,2)D .(1,2)2.已知函数1,0,(),0.xx x f x a x -≤⎧=⎨ >⎩若(1)(1)f f =-,则实数a =( ) A .1 B .2 C .3 D .43.在同一坐标系中,函数2x y =与1()2xy =的图象之间的关系是( )A .关于y 轴对称B .关于x 轴对称C .关于原点对称D .关于直线y x =对称4.函数(0,1)x y a a a a =->≠的图象可能是( )A.C.D.5.下列函数中,既是偶函数又在(0,)+∞单调递增的函数是( ) A . 1y x=-B . e xy = C . 23y x =-+ D . cos y x = 6.设 2.52a =,02.5b =, 2.51()2c =,则,,a b c 的大小关系是( )A .a c b >>B .c a b >>C . a b c >>D .b a c >>7. 设函数2 0()() 0.x x f x g x x ⎧<=⎨>⎩,,, 若()f x 是奇函数,则(2)g 的值是( )A. 14-B. 4-C. 14 D. 48.定义运算, ,a ab a b ≤⎧⊕=⎨,则函数()12xf x =⊕的图象是( )A .B .C .D .9.已知函数221,0,()2,0.x x f x x x x ⎧-≥=⎨--<⎩,若1)(=a f ,则实数a 的值是 .10.已知函数()x af x e-=(a 为常数).若)(x f 在区间),1[+∞上是增函数,则a 的取值范围是 .11.函数()(0,1)xf x a a a =>≠在区间[1,2]上的最大值比最小值大2a,求a 的值.12.设a 是实数,2()()21x f x a x R =-∈+, (1)求a 的值,使函数()f x 为奇函数;(2)试证明:对于任意,()a f x 在R 上为增函数.高一寒假作业第6天 对数与对数函数1.23(log 9)(log 4)⋅=( ) A .14 B . 12C .2D .42.已知 1.22a =,0.21()2b -=,52log 2c =,则( )A .c b a <<B .c a b <<C .b a c <<D .b c a <<3.集合{|lg 0}M x x =>,2{|4}N x x =≤,则M N =( )A .(1,2)B .[1,2)C .(1,2]D .[1,2]4. 若函数()log (1)(0,1)a f x x a a =->≠的图象恒过定点,则定点的坐标为( ) A .(1,0) B . (2,0) C .(1,1) D .(2,1)5.设 4.20.6a =,0.67b =,0.6log 7c =,则a ,b ,c 的大小关系是( )A .c b a <<B .c a b <<C .a c b <<D .a b c <<6.已知集合2{|log 1}A x x =<,{|0B x x c =<<,其中0}c >.若A B B =,则c 的取值范围是( ) A .(0,1] B .[1,)+∞ C .(0,2] D .[2,)+∞7.函数2()log (31)x f x =+的值域为( )A .(0,)+∞B .[0,)+∞C .(1,)+∞D .[1,)+∞8.函数log (0a y x a =>且1)a ≠的图象经过点)1,2(-,函数(0xy b b =>且1)b ≠的图象经过点)2,1(,则下列关系式中正确的是( ) A .22b a > B .ba 22>C . b a )21()21(> D .2121b a >9.函数x x f 6log 21)(-=的定义域为 .10.已知函数x x f lg )(=,若1)(=ab f ,则=+)()(22b f a f .11.设函数21,,2()1log ,2x a x f x x x ⎧-+<⎪⎪=⎨⎪≥⎪⎩的最小值为1-,求实数a 的取值范围.12.设函数)1ln()(2++=ax x x f 的定义域为A . (1)若1A ∈,3A -∉,求实数a 的范围;(2)若函数=y ()f x 的定义域为R ,求实数a 的取值范围.高一寒假作业第7天 幂函数1.幂函数()y f x =)的图象经过点1(4,)2,则1()4f =( ) A .1B .2C .3D .42.已知幂函数226(57)my m m x -=-+在区间(0,)+∞上单调递增,则实数m =( )A .3B .2C .2或3D .2-或3- 3.若0a <,则下列不等式成立的是 ( )A .12()(0.2)2a a a >> B .1(0.2)()22aaa >> C .1()(0.2)22a a a >> D .12(0.2)()2aaa >> 4.函数()(1)2f x x α=-+过定点( )A .(1,3)B .(1,2)C .(2,3)D .(0,1)5.设1{1,,1,2,3}2n ∈-,则使得()n f x x =为奇函数,且在(0,)+∞上单调 递减的n 的个数是( )A .1B .2C .3D .46.下列函数在其定义域内既是奇函数又是增函数的是( )A .1y x=- B .3xy = C .13y x = D .lg y x =78.函数1()x f x x+=图象的对称中心为( ) A .(0,0) B .(0,1) C . (1,0) D . (1,1) 9.函数25()3x y x A x -=∈-的值域是[4,)+∞,则集合A = . 10.已知函数32,2,()(1), 2.x f x x x x ⎧≥⎪=⎨⎪-<⎩若关于x 的方程()f x k =有两个不同的实根,则实数k 的取值范围是________.11.已知函数1()f x x -=,若(1)(102)f a f a+<-,求a 的取值范围.12.已知幂函数39* ()m y x m N -=∈的图象关于y 轴对称,且在()0,+∞上单调递减,求满足()()22132m m a a +<-的a 得取值范围.高一寒假作业第8天 函数与方程1.函数xx x f )21()(21-=的零点个数为( )A .0B .1C .2D .32.方程 03log 3=-+x x 的解所在的区间是( ) A . (0,1) B . (1,2) C .(2,3) D . (3,4)3.用max{}a b ,表示a ,b 两个数中的最大数,设22()max{84,log }f x x x x =-+-,若函数()()g x f x k x =-有2个零点,则k 的取值范围是( )A .(0,3)B . (0,3]C . (0,4)D . [0,4]4.函数()2ln f x x x =--在定义域内零点的个数为( )A .0B .1C .2D .35.函数22)(3-+=x x f x在区间(0,1)内的零点个数是( )A .0B .1C .2D .36.函数()lg 3f x x x =+-的零点所在区间为( ) A .(3,)+∞B .(2,3))C .((1,2)D .(0,1)7.已知1()ln f x x x=-在区间(1,2)内有一个零点0x ,若用二分法求0x 的近似值(精确度0.1),则需要将区间等分的次数为( )A .3B .4C .5D .68.已知a 是函数15()5log x f x x =-的零点,若00x a <<,则0()f x 的值( )A .0()0f x =B .0()0f x >C .0()0f x <D .0()f x 的符号不能确定9.已知函数()24f x mx =+,在[2,1]-上存在0x ,使0()0f x =,则实数m 的取值范围是____________.10.已知函数213(),2,()24log ,0 2.x x f x x x ⎧+≥⎪=⎨⎪ <<⎩若函数()()g x f x k =-有两个不同的零点,则实数k 的取值范围是 .11.已知函数122,09,(),20.x x f x x x x ⎧≤≤⎪=⎨+-≤<⎪⎩(1)求()f x 的零点;(2)求()f x 的值域.12.证明方程24xx +=在区间(1,2)内有唯一一个实数解,并求出这个实数解(精确到0.2).高一寒假作业第9天 函数模型及应用1.资费调整后,市话费标准为:通话时间不超过3min 收费0.2元,超过3min 以后,每增加1min 收费0.1元,不足1min 按1min 付费,则通话费s (元)与通话时间(min)t 的函数图象可表示成图中的( )2.某工厂从2006年开始,近八年以来生产某种产品的情况是:前四年年产量的增长速度越来越慢,后四年年产量的增长速度保持不变.则该厂这种产品的年产量y 与时间t 的函数图象可能是( )3.某商人将彩电先按原价提高40 ,然后在广告上写上"大酬宾,八折优惠"结果是每台彩电比原价多赚了270元,则每台彩电的原价为 元.4.某工厂12年来某产品总产量s 与时间t (年)的函数关系如图所示,下列四种说法:① 前三年总产量增长的速度越来越快.② 前三年总产量增长的速度越来越慢. ③ 第3年后至第8年这种产品停止生产了. ④ 第8年后至第12年间总产量匀速增加. 其中正确的说法是 .5.某厂有许多形状为直角梯形的铁皮边角料(如图),为降低消耗,开源节流,现要从这些边角料上截取矩形铁片(如图阴影部分)备用,求截取的矩形面积的最大值.6.某民营企业生产甲、乙两种产品,根据市场调查与预测,甲产品的利润与投资成正比,其关系如图①;乙产品的利润与投资的算术平方根成正比,其关系如图②.(1)分别将A、B两产品的利润表示为投资量的函数关系式;(2)该公司已有10万元资金,并全部投入A、B两种产品中,问:怎样分配这10万元投资,才能使公司获得最大利润?其最大利润为多少万元?高一寒假作业第10天空间几何体的结构1.下列命题正确的是()A.棱柱的底面一定是平行四边形B.棱锥的底面一定是三角形C.棱台的底面是两个相似的正方形D.棱台的侧棱延长后必交于一点2.一个棱锥的侧面都是正三角形,那么这个棱锥底面多边形边数最多是()A.4B.5C.6D.73.如果圆锥的侧面展开图是半圆,那么这个圆锥的顶角(圆锥轴截面中两条母线的夹角)是()A.30B.45C.60D.904)A.B.C.6D5.下图是一个正方体的展开图,将其折叠起来,变成正方体后的图形可能是()6.如图,是一个无盖正方体盒子的表面展开图,A、B、C为其上三点,则在正方体盒子中,∠ABC等于()A.45°B.60°C.90°D.120°72,母线与轴的夹角为030,求圆锥的母线长以及圆锥的高.8.如图,已知三棱柱111ABC A B C 的所有棱长都相等,且侧棱垂直于底面,由B 沿棱柱侧面经过棱1CC到点1A 的最短路线长为1CC 的交点为D .求三棱柱的棱长.高一寒假作业第11天 三视图和直观图1.一个几何体的三视图如图所示,则该几何体的体积为( )A .32aB .36aC .312aD .318a2.已知某三棱锥的三视图(单位:cm )如图所示,则该三棱锥的体积是( )A .31cmB .32cmC .33cmD .36cm3.如图,一个空间几何体的主视图和俯视图都是边长为1的正方形,侧视图是一个直径为1的圆,那么这个几何体的表面积为( )A .π4B .π3C .π2D .π234.一个体积为 ) A .12 B .8 C. D.俯视图正视图侧视图俯视图侧视图正视图正视图侧视图俯视图主视图侧视图俯视图5.如图,网格纸上小正方形的边长为1,粗线画出的是某几何体的三视图,则此几何体的体积为( ) A .6 B . 9 C .12 D .186.若一个三棱柱的底面是正三角形,其正(主)视图如图所示,则它的体积为 ( )AB .2C. D .47.一个几何体的三视图如图所示,正视图是正方形, 俯视图为半圆,侧视图为矩形,则其表面积为( ) A .3π B .4π+ C .42π+ D .43π+8.已知正六棱柱的底面边长和侧棱长均为2cm ,其三视图中的俯视图如图所示,则其侧视图的面积是( )A.2 B.2 C .28cm D .24cm侧视图正视图俯视图高一寒假作业第12天空间几何体的表面积与体积1.正三棱柱的高为3,底面边长为2,则它的体积为()A.2B.3CD.2)A.3πB.C.6πD.9π3.已知正方体的外接球的体积是43π,则这个正方体的棱长是()A.3BC.3D4.平面α截球O的球面所得圆的半径为1,球心O到平面α)AB.C.D.5.一个高为2的圆柱,底面周长为2π,该圆柱的表面积为______.6.如图BD是边长为3的ABCD为正方形的对角线,将BCD∆绕直线AB旋转一周后形成的几何体的体积等于______.C7.如图,在长方体1111ABCD A B C D -中,3AB AD ==,12AA =,求四棱锥11A BB D D -的体积.8.如图,三棱柱111ABC A B C -中,若E 、F 分别为AB 、AC 的中点,平面11EB C 将三棱柱分成体积为1V 、2V 的两部分,求1V :2V 的值.高一寒假作业第13天 空间点、线、面的位置关系B 1D AB CC 1D 1A 1A B CA 1B 1C 1E F1.如果两条直线,a b 没有公共点,那么,a b 的位置关系是( )A .共面B .平行C .异面D .平行或异面 2.下列说法正确的是( )A .空间中不同三点确定一个平面B .空间中两两相交的三条直线确定一个平面C .梯形确定一个平面D .一条直线和一个点确定一个平面3.已知E ,F ,G ,H 是空间四点,命题甲:E ,F ,G ,H 四点不共面,命题乙:直线EF 和GH 不相交,则甲是乙成立的( )A .充分不必要条件B .必要不充分条件C .充要条件D .既不充分也不必要条件4.在正四棱锥V ABCD -中,底面正方形ABCD 的边长为1,侧棱长为2,则异面直线VA 与BD 所成角的大小为( )A .6π B .4π C .3π D .2π 5.下列四个命题:①若直线a 、b 是异面直线,b 、c 是异面直线,则a 、c 是异面直线; ②若直线a 、b 相交,b 、c 相交,则a 、c 相交; ③若a ∥b ,则a 、b 与c 所成的角相等; ④若a ⊥b ,b ⊥c ,则a ∥c . 其中真命题的个数是( ) A .4B .3C .2D .16.如图是某个正方体的侧面展开图,1l 、2l 是两条侧面对角线,则在正方体中,1l 与2l ( )A .互相平行B .异面且互相垂直C .异面且夹角为3πD .相交且夹角为3π7.如图,在正方体1111ABCD A BC D -中,E 是AB 的中点,F 是1A A 的中点,求证: l 2l 1(1)E 、C 、1D 、F 四点共面; (2)CE 、1D F 、DA 三线共点.8.如图所示,平面ABD 平面BCD BD ,M 、N 、P 、Q 分别为线段AB 、BC 、CD 、DA 上的点,四边形MNPQ 是以PN 、QM 为腰的梯形.证明:三直线BD 、MQ 、NP 共点.D 1C 1B 1A 1FEDCBAQN PMD CBA高一寒假作业第14天 空间中的平行关系1.对两条不相交的空间直线a 和b ,则( ) A .必定存在平面α,使得,a b αα⊂⊂B .必定存在平面α,使得a α⊂,b ∥αC .必定存在直线c ,使得a ∥c ,b ∥cD .必定存在直线c ,使得a ∥c ,b c ⊥2.已知直线l m n ,,及平面α,下列命题中是假命题的是( ) A .若l ∥m ,m ∥n ,则l ∥n B .若l ∥α,n ∥α,则l ∥n C .若l m ⊥,m ∥n ,则l n ⊥ D .若,l n α⊥∥α,则l n ⊥3.下列命题正确的是( )A .若两条直线和同一个平面所成的角相等,则这两条直线平行B .若一个平面内有三个点到另一个平面的距离相等,则这两个平面平行C .若一条直线平行于两个相交平面,则这条直线与这两个平面的交线平行D .若两个平面都垂直于第三个平面,则这两个平面平行4.已知正四棱柱1111ABCD A BC D -中 ,2AB =,1CC =E 为1CC 的中点,则直线1AC 与平面BED 的距离为( )A .2 BCD .15.如图,在多面体ABCDEFG 中,平面ABC //平面DEFG ,AD ⊥平面DEFG ,AB AC ⊥,ED DG ⊥,EF ∥DG ,且1AC EF ==,2AB AD DE DG ====.(1)求证:BF //平面ACGD ; (2)求三棱锥A BCF -的体积.EFGABCD6.在三棱锥P ABC -中,2PA AC BC ===,PA ⊥平面ABC ,BC AC ⊥,D 、E 分别是PC 、PB 的中点.(1)求证:DE //平面ABC ; (2)求证:AD ⊥平面PBC ; (3)求四棱锥A BCDE -的体积.高一寒假作业第15天 空间中的垂直关系1.设l 是直线,α,β是两个不同的平面( )A .若l ∥α,l ∥β,则α∥βB .若l ∥α,l ⊥β,则α⊥βC .若α⊥β,l ⊥α,则l ⊥βD .若α⊥β, l ∥α,则l ⊥β2.设n m ,是两条不同的直线,,αβ是两个不重合的平面,那么下面给出的条件中一定能推出m β⊥的是( )A .⊥αβ,且m ⊂αB .m ∥n ,且n ⊥βC .⊥αβ,且m ∥αD .m ⊥n ,且n ∥βACBPED3.已知α,β是平面,m ,n 是直线,给出下列命题 ①若α⊥m ,β⊂m ,则βα⊥.②若α⊂m ,α⊂n ,m ∥β,n ∥β,则α∥β.③如果,m n αα⊂⊄,m 、n 是异面直线,那么n 与α相交. ④若m αβ=,n ∥m ,且βα⊄⊄n n ,,则n ∥α且n ∥β.其中正确命题的有 .(填命题序号) 4.给定下列四个命题:①若一个平面内的两条直线与另外一个平面都平行,那么这两个平面相互平行; ②若一个平面经过另一个平面的垂线,那么这两个平面相互垂直; ③垂直于同一直线的两条直线相互平行;④若两个平面垂直,那么一个平面内与它们的交线不垂直的直线与另一个平面也不垂直.其中正确命题的有 .(填命题序号)5.如图,四棱锥S ABCD -中,M 是SB 的中点,//AB DC ,BC CD ⊥,SD ⊥平面SAB ,且22AB BC CD SD ===. (1)证明:CD SD ⊥;(2)证明:CM ∥平面SAD .S A B C D M6.如图,四棱锥P ABCD -的底面ABCD 为矩形,且1PA AD ==,2AB =, 120PAB ∠=,90PBC ∠=.(1)求证:平面PAD ⊥平面PAB ;(2)求三棱锥D PAC -的体积.A BCD P高一寒假作业第16天 空间直角坐标系1.在空间直角坐标系中,P 点坐标为(1,2,3)-,则点P 到xOy 平面的距离为( )A .1B .2C .3D .142.到(1,0,0)A 的距离除以到(4,0,0)B 的距离的值为12的点(,,)P x y z 的坐标满足()A .2224x y z ++=B .22212x y z ++=C .2225()42x y z -++= D .2225()122x y z -++=3.已知点(1,2,11),(4,2,3),(6,1,4)A B C --,则ABC ∆的形状是( )A .等腰三角形B .等边三角形C .直角三角形D .等腰直角三角形4.已知ABC ∆的三个顶点坐标分别为(2,3,1),(4,1,2),(6,3,7)A B C -,则ABC ∆的重心坐标为( )A .7(6,,3)2B .7(4,,2)3C .14(8,,4)3 D .7(2,,1)65.在x 轴上与(4,1,7)A -和(3,5,2)B --等距离的点为 .6.已知(3,1,1)A -和(2,4,3)B -,则线段AB 在坐标平面yOz 上的射影长度为 .7.已知(,5,21),(1,2,2)A x x x B x x --+-,求AB 取最小值时x 的值.8.正方形ABCD 、ABEF 的边长都是1,而且平面ABCD 和平面ABEF 互相垂直,点M 在AC 上移动,点N 在BF 上移动,若(0CM BN a a ==<<.(1)求MN 的长;(2)a 为何值时,MN 的长最小?高一寒假作业第17天 直线的方程1.过两点(0,3),(2,1)的直线方程为( )A .30x y --=B .30x y +-=C .30x y ++=D .30x y -+=2.设直线0ax by c ++=的倾斜角为α,且sin cos 0αα+=,则a 、b 满足() A .1a b += B .1a b -= C .0a b += D .0a b -=3.过点(2,1)M 的直线与,x y 轴分别交于,P Q ,若M 为线段PQ 的中点,则这条直线的方程为( )A .230x y --=B .250x y +-=C .240x y +-=D .230x y -+=4.若直线(23)60t x y -++=不经过第二象限,则t 的取值范围是( )A .(23, +∞) B .3(,]2-∞ C .3[,)2+∞ D .3(,)2-∞5.倾斜角是直线30x -=的倾斜角的2倍,且过点P 的直线方程是______________.6.若经过点(1,1)P a a -+和(3,2)B a 的直线的倾斜角为锐角,则实数a 的取值范围是 .7.在ABC ∆中,已知点(5,2)A -、(7,3)B ,且边AC 的中点M 在y 轴上,边BC 的中点N 在x 轴上.(1)求点C 的坐标;(2)求直线MN 的方程.8.已知直线l :120()kx y k k R -++=∈.(1)证明直线l 过定点;(2)若直线l 交x 轴负半轴于A ,交y 轴正半轴于B ,AOB ∆的面积为S ,求S 的最小值并求此时直线l 的方程.高一寒假作业第18天 两直线的位置关系1.与直线032=--y x 相交的直线的方程是( )A .0624=--y xB .x y 2=C .52+=x yD .32+-=x y2.过点(1,0)且与直线220x y --=平行的直线方程是( )A .210x y --=B .210x y -+=C .220x y +-=D .210x y +-=3.如果直线013=++y ax 与直线0322=-+y x 互相垂直,那么a 的值等于( )A .3B .31-C .3-D .314.直线3y x =绕原点逆时针旋转090,再向右平移1个单位,所得到的直线为( )A .1133y x =-+ B .113y x =-+ C .33y x =- D .113y x =+5.过点(1,2)A ,且在两坐标轴上的截距相等的直线方程为 .6.若y x ,满足01332=--y x ,则22y x +的最小值为 .7.求经过直线1l :250x y +-=与直线2l :3210x y -+=的交点M ,且满足下列条件的方程:(1)与直线012=++y x 平行;(2)与直线012=++y x 垂直.8.已知点(2,1)P -,求:(1)过P 点与原点距离为2的直线l 的方程;(2)过P 点与原点距离最大的直线l 的方程,最大距离是多少?(3)是否存在过P 点与原点距离为3的直线?若存在,求出方程;若不存在,请说明理由. ∴ 过P 点不存在与原点距离为3的直线.高一寒假作业第19天 圆的方程1.圆心为(1,0)-,半径为2的圆的标准方程为( )A .22(1)4x y ++=B .22(1)4x y +-=C .22(1)4x y ++=D .22(1)4x y -+=2.已知圆:C 22450x y x +--=,点(3,1)P 为弦AB 的中点,则直线AB 的方程是()A .240x y --=B .40x y +-=C .240x y -+=D .20x y --=3.将圆222410x y x y +--+=平分的直线是( )A .10x y +-=B .30x y ++=C .10x y -+=D .30x y -+=4.圆心在y 轴上且通过点(3,1)的圆与x 轴相切,则该圆的方程是( )A .22100x y y ++=B .22100x y y +-=C .22100x y x ++=D .22100x y x +-=5.圆22430x y x +-+=的圆心到直线0x =的距离是_____.6.如果实数,x y 满足等式22(2)3x y -+=,那么x y 的最大值是 .7.已知直线l 经过两点(2,1),(6,3).(1)求直线l 的方程;(2)圆C 的圆心在直线l 上,并且与x 轴相切于(2,0)点,求圆C 的方程.8.直角三角形ABC 的顶点坐标(2,0)A -,直角顶点(0,B -,顶点C 在x 轴上.(1)求BC 边所在的直线方程;(2)M 为ABC ∆的外接圆的圆心,求圆M 的方程.高一寒假作业第20天直线与圆的位置关系1.过点(0,2)且与圆221x y +=相切的直线方程为( )A .2y x =+B .2y x =±+C .2y +D .2y =+2.设,A B 为直线y x =与圆221x y += 的两个交点,则||AB =( )A .1 BC D .23.已知圆22:40C x y x +-=,l 过点(3,0)P 的直线,则( )A .l 与C 相交B . l 与C 相切C .l 与C 相离D . 以上三个选项均有可能4.直线5x y +=和圆O :2240x y y +-= 的位置关系是( )A .相离B .相切C .相交不过圆心D .相交过圆心5.从圆22(1)(1)1x y -+-=外一点(2,3)P 向这个圆引切线,则切线长为________.6.若点P 在直线03:1=++y x l 上,过点P 的直线2l 与曲线C :22(5)16x y -+=只有一个公共点M ,则PM 的最小值为________.7.直线3y kx =+与圆22(1)(2)4x y -++=相交于N M ,两点,若MN ≥求k 的取值范围.8.已知圆C :012822=+-+y y x ,直线l :02=++a y ax .(1)当a 为何值时,直线l 与圆C 相切;(2)当直线l 与圆C 相交于A 、B 两点,且22=AB 时,求直线l 的方程.高一寒假作业详细答案高一寒假作业第1天 集合1.B 【解析】∵{1,0,1}M =-,{0,1}N =,∴M N ={0,1}.2.A 【解析】U M =ð{2,4,6}.3.D 【解析】2{230}{1,3}A x x x =--==-,B 有∅,{1}-,{3},{1,3}-,共4个.4.C 【解析】∵B y A x ∈∈,,∴当1-=x 时,2,0=y ,此时1,1-=+=y x z , 当1=x 时,2,0=y ,此时3,1=+=y x z , ∴集合{1,1,3}{1,1,3}z z =-=-共三个元素. 5.D6.C 【解析】∵{0,3,9}N =,∴{0,3}M N =.7.A 【解析】集合A 有,{1},{2},{1,2}∅,共4个.8.C9.D 【解析】阴影部分表示()U A B ð,故选D . 10.A【解析】当2,k n n Z =∈时,1,22n N x x n Z ⎧⎫==+∈⎨⎬⎩⎭, 当21,k n n Z =-∈时,1,24n N x x n Z M ⎧⎫==+∈=⎨⎬⎩⎭, ∴M N ,∵0x M ∈,∴0x N ∈.11.【解析】 ∵ A B A =,∴ B A ⊆.(1)当B =∅时,则121m m +>-,解得2m <.(2)当B ≠∅时,则12121512m m m m +≤-⎧⎪-≤ ⎨⎪+>-⎩,解得23m ≤≤. ∴实数m 的取值范围是3m ≤. 12.【解析】(1) ∵2S ∈, ∴112S ∈-,即1S -∈, ∴()111S ∈--,即12S ∈; (2) 证明:∵a S ∈, ∴11S a∈-, ∴11111S a a=-∈--; (3) 集合S 中不能只有一个元素,用反证法证明如下:假设S 中只有一个元素,则有11a a=-,即210a a -+=,该方程没有实数解,∴集合S 中不能只有一个元素.高一寒假作业第2天 函数的概念1.D0≠,∴10x +>,解得1x >-.2.B 【解析】当0x =时,0y =;当1x =时,0y =;当2x =时,2y =. 3.A 【解析】由10x ->,解得1x >.4.C 【解析】∵22(1)+1, [0,3],()(3)9, [2,0).x x f x x x ⎧--∈⎪=⎨+-∈-⎪⎩, ∴当[0,3]x ∈时,()f x ∈[3,1]-;当[2,0)x ∈-时,()f x ∈[8,0)-; ∴()f x 的值域为[3,1][8,0)--=[8,1]-.5.B 【解析】∵21,12<≤-+-=x x y ,∴222101y -+<≤-+,即31y -<≤.6.D 【解析】∵32)3(=f ,∴9131941)32()32())3((2=+=+==f f f . 7.B 【解析】由图象可知,该函数的定义域为[3,3]-,值域为[2,2]-.8.A 【解析】当1(0,)2a ∈时,则{}0a a a =-=,111{}0222a a a +=+-=+,∴1{}{}2a a <+. 当1[,1)2a ∈时,则{}0a a a =-=,111{}1222a a a +=+-=-,∴1{}{}2a a >+.9.【答案】[)()1,00,-+∞【解析】由10x x +≥⎧⎨≠⎩,解得10x x ≥-≠且,∴定义域为[1,0)(0,)-+∞.10.9【解析】339⨯=.11.【解析】设2()(0)f x ax bx c a =++≠,∵(0)0f =,∴0c =,∴2()f x ax bx =+.又(1)()1f x f x x +=++.∴22(1)(1)1a x b x ax bx x +++=+++,∴21ax a b x ++=+,∴211a a b =⎧⎨+=⎩,解得1212a b ⎧=⎪⎪⎨⎪=⎪⎩.∴211()22f x x x =+.12.【解析】211()(1)22f x x a =--+的对称轴为1x =.∴[1,]b 为()f x 的单调递增区间. ∴min 1()(1)12f x f a ==-=①,2max 1()()2f x f b b b a b ==-+=②由①②解得323a b ⎧=⎪⎨⎪=⎩.高一寒假作业第3天 函数的单调性1.C 2.A 3.B4.D 【解析】∵)(x f 在R 上是减函数,若0≤+b a ,∴a b ≤-,∴()()f a f b ≥-,同理:()()f b f a ≥-, ∴()()()()f a f b f a f b +≥-+-. 5.A6.A 【解析】由1212()()0f x f x x x -<-,则()f x 在(0,)+∞上单调递减,又()f x 是偶函数,∴(2)(2)f f -=,∵03>21>>,∴(3)(2)(1)f f f <-<.7.D 【解析】∵ 221331()244x x x -+=-+≥,∴214()13f x x x =≤-+. 8.B 【解析】220,1()12(2)2a a -<⎧⎪⎨-≥-⎪⎩,解得138a ≤.9.12,1【解析】1()1f x x =-在(1,)+∞上是减函数,∴1()1f x x =-在[2,3]上是减函数,∴min 1()(3)2f x f ==,max ()(2)1f x f ==.10. (,1]-∞【解析】1,1,121, 1.x y x x x x ≥⎧=--=⎨-<⎩作出该函数的图象如图所示.由图象可知,函数的单调增区间是(,1]-∞.11.【解析】∵()y f x =在定义域为[1,1]-是减函数, ∴由(1)(21)f a f a -<-得:1211111211a a a a ->-⎧⎪-≤-≤⎨⎪-≤-≤⎩,解得203a ≤<, ∴a 的取值范围是2[0,)3. 12.【解析】 (1)证明:设210x x >>,则12()()f x f x -1212121111()()x x ax a x x x -=---=, 又∵ 210x x >>,∴12120,0x x x x -<>,∴12120x x x x -<,即 12()()f x f x <, ∴()f x 在(0,)+∞上是单调递增函数.(2)∵()f x 在1[,2]2上的值域是1[,2]2,又()f x 在1[,2]2上单调递增,∴11()22f =,(2)2f =.∴解得25a =.高一寒假作业第4天 奇偶性1.D 2.D 3.D 4.A 5.D6.A 【解析】∵()f x 为奇函数,1(21)()0.2f x f -+<, ∴(21)f x -<1()2f -,∴1212x -<-,解得14x <. 7.D 【解析】∵设0x <,则0x ->,∴22()()2()121()f x x x x x f x -=-+--=--=, 同理:设0x >,()()f x f x -=,∴()f x 为偶函数,图象关于y 轴对称, ∵22()21(1)2f x x x x =+-=+-在[0,)+∞上递增,∵120x x <<,∴1200x x -<-,∴12()()f x f x <.8.D 【解析】∵()f x 为奇函数,∴[()()]0x f x f x --<可化为()0xf x <,如图,根据()f x 的性质可以画出()f x 的草图,因此()010xf x x <⇔-<<,或0x <9.4【解析】()f x 为偶函数,∴(1)(1)f f -=,∴5(1)3(1)a a --+=-+,即4a =. 10.3【解析】由12)1()1(=+=f g ,得1)1(-=f ,∴32)1(2)1()1(=+-=+-=-f f g . 11.【解析】(1)当0=a 时,()2x x f =为偶函数;当0≠a 时,()x f 既不是奇函数也不是偶函数.(2)设212≥>x x ,()()22212121x a x x a x x f x f --+=-[]12121212()x x x x x x a x x -=+-,由212≥>x x 得()162121>+x x x x ,0,02121><-x x x x要使()x f 在区间[)+∞,2是增函数只需()()021<-x f x f ,即()02121>-+a x x x x 恒成立,则16≤a . 12.【解析】(1))(x f 是R 上的减函数,∵对任意的实数R a ∈有0)()(=+-a f a f 恒成立.∴)(x f 在R 上的奇函数,∴0)0(=f . ∵)(x f 在R 上是单调函数,且(3)(0)f f ->,∴)(x f 在R 上是减函数. (2)∵(3)2f -=,2)2(<-xx f ,∴)3()2(-<-f x xf ,∵)(x f 在R 上是减函数∴32->-x x ,即022>+xx ,解得:1x <-,或0x >,∴不等式的解集为(,1)(0,)-∞-+∞.高一寒假作业第5天 指数与指数函数1.C 【解析】2x =时,2y =,故图象必经过点(2,2).2.B 【解析】∵(1)f a =,(1)2f -=,(1)(1)f f =-,∴2a =.3.A 【解析】∵1()22x xy -==,∴它与函数2x y =的图象关于y 轴对称.4.C【解析】∵(0,1)x y a a a a =->≠恒过点(1,0),故C 正确. 5.B6.C 【解析】∵1a >,1b =,01c <<,∴a b c >>. 7. A 【解析】21(2)(2)24g f -=--=-=-.8.A 【解析】∵2, 0()12 1 , 0x xx f x x ⎧<=⊕=⎨≥⎩,∴选项A 正确.9. 1±【解析】0211a a ≥⎧⎨-=⎩或2021a a a <⎧⎨--=⎩,解得1a =±.10.【解析】∵)(x f 在区间),1[+∞上是增函数,∴a x t -=在区间[1,)+∞上单调递增,∴1≤a .11.【解析】当1a >时,()x f x a =在区间[1,2]上为增函数,∴2max ()(2)f x f a ==,min ()(1)f x f a ==.∴22a a a -=,解得0a =(舍去),或32a =. 当01a <<时,()xf x a =在区间[1,2]上为减函数,∴max ()(1)f x f a ==,2min ()(2)f x f a ==. ∴22a a a -=,解得0a =(舍去),或12a =. 综上可知,12a =,或32a =. 12.【解析】(1)∵222()2112xx xf x a a -⋅-=-=-++,由()f x 是奇函数,∴()()0f x f x +-=,即2(12)2012x xa +-=+,∴1a =. (2)证明:设1212,,x x R x x ∈<,则12()()f x f x -1222()()2121x x a a =---++21222121x x =-++12122(22)(21)(21)x x x x -=++, ∵2xy =在R 上是增函数,且12x x <,∴1222x x <即12220x x-<,又∵1210x +>,2210x+>,∴12()()0f x f x -<,即12()()f x f x <.∵此结论与a 取值无关,∴对于a 取任意实数,()f x 在R 上为增函数.高一寒假作业第6天 对数与对数函数1.D 【解析】23lg9lg 42lg32lg 2log 9log 44lg 2lg3lg 2lg3⨯=⨯=⨯=. 2.A 【解析】∵0.20.2 1.21()222b -==<,∴a b <<1, ∵14log 2log 2log 25255<===c ,∴a b c <<. 3.C 【解析】∵{|lg 0}{|1}M x x x x =>=>,2{|4}{|22}N x x x x =≤=-≤≤,∴(1,2]MN =.4. B 【解析】令11x -=,得2,0x y ==.5.B 【解析】∵01a <<,1b >,0c <,∴c a b <<. 6.D 【解析】∵{|02}A x x =<<,A B B =,∴2c ≥. 7.A 【解析】∵311x+>,∴22()log (31)log 10x f x =+>=. 8.C 【解析】∵1log 21log a a a -=-=,∴12a =,∵12b =,∴2b =,∴b a )21()21(>.9.【解析】∵612log 0x -≥,∴61log 2x ≤,∴12666log log 6log x ≤=0<x10.2【解析】∵x x f lg )(=,∴1)(=ab f ,1lg =ab ,∴2222()()lg lg f a f b a b +=+2(lg lg )2lg 2a b ab =+==. 11.【解析】当12x <时,1()(,)2f x a ∈-+∞, 当12x ≥时,()[1,)f x ∈-+∞, ∵()f x 的最小值为1-,∴1(,)[1,)2a -+∞⊆-+∞∴112a -≥-,即12a ≥-.∴实数a 的取值范围是21-≥a .12.【解析】(1)由题意,得1109310a a ++>⎧⎨-+≤⎩,解得310≥a .∴实数a 的范围为),310[+∞.(2)由题意,得012>++ax x 在R 上恒成立,则042<-=∆a ,解得22<<-a .∴实数a 的范围为(22)-,.高一寒假作业第7天 幂函数1.C 【解析】设()f x x α=,则142α=,∴12α=-,∴12()f x x -=,∴12(2)2f -==.2.A 【解析】由2257160m m m ⎧-+=⎪⎨->⎪⎩,解得3m =.3.B 【解析】∵0a <,a y x =在(0,)+∞上是减函数,∴1(0.2)()22aa a >>.4.C 【解析】令11x -=,得2,3x y == , ∴函数()(1)2f x x α=-+过定点(2,3).5.A 6.C7.B 【解析】先由一个图象的位置特征确定α的大小, 再由此α值判断另一图象位置特征是否合适,可判定选B .8.B 【解析】∵11()1x f x x x+==+,∴对称中心为(0,1). 9.7(3,]2【解析】∵2543x y x -=≥-,∴7203x x -≤-,∴732x <≤. 10.(0,1)【解析】2()f x x=在[2,)+∞上递减,故()(0,1]f x ∈,3()(1)f x x =-在(,2)-∞上递增,故(,1))(f x -∞∈,∵()f x k =有两个不同的实根,∴实数k 的取值范围是(0,1). 11.【解析】由函数1()f x x -=的图象可得,101020a a +<⎧⎨->⎩,或1010201102a a a a +>⎧⎪->⎨⎪+>-⎩,或1010201102a a a a+<⎧⎪-<⎨⎪+>-⎩,∴1a <-或35a <<. 12.【解析】∵函数在()0,+∞上的单调递减,∴390m -<,解得3m <;∵*m N ∈,∴1,2m =.当1m =时,396m -=-,当2m =时,393m -=-, 又函数图象关于y 轴对称,∴39m -是偶数,∴1m =.∵ 12y x =在[0,)+∞上单调递增,∴ 10320321a a a a +≥⎧⎪->⎨⎪->+⎩,解得213a -<≤.∴a 的取值范围是213a -<≤.高一寒假作业第8天 函数与方程1.B 【解析】∵12y x =和1()2xy =的图象只有一个交点,∴零点只有一个,故选B .2.C 【解析】令3()log 3f x x x =+-,∵(2)0f <,(3)0f >,∴(2)(3)0f f ⋅<,故选 C . 3.C 【解析】依题意函数()y f x =与直线y kx =有两个交点.当0k =显然不成立,排除D .其次,二次函数的顶点是(4,12),与原点连线的斜率是3,显然成立,排除A ,B .4.C 【解析】画出函数2y x =-和函数ln y x =的图象有两个交点,则原函数有两个零点.5.B 【解析】令()0f x =,得322xx =-,∵2x y =和32y x =-的图象的交点有1个,∵(0)10f =-<,(1)10f =>,∴在区间)1,0(内函数的零点个数为1.6.B 【解析】∵(1)20f =-<,(2)1210f g =-<,(3)130f g =>,∴(2)(3)0f f ⋅<,故选B . 7.B 【解析】1()0.12n<,解得4n ≥.8.C 【解析】∵15()5log x f x x =-在(0,)+∞上为增函数,∵00x a <<,∴0()()0f x f a <=.9.(,2][1,)-∞-+∞【解析】(2)(1)(44)(24)0f f m m -⋅=-++≤,∴1m ≥,或2m ≤-. 10.3(,1)4【解析】当2x ≥时,3()(,1]4f x ∈,当02x <<时,()(,1)f x ∈-∞,∴3(,1)4k ∈.11.【解析】(1)由1209x x ≤≤⎧⎪⎨=⎪⎩,解得0x =;由2200x x x -≤<⎧⎨+=⎩,解得1x =-; ∴()f x 的零点是1-和0.(2)∵当[2,0)x ∈-时,1()[,2]4f x ∈-,当[0,9]x ∈时,()[0,3]f x ∈,∴()f x 的值域是1[,3]4-. 12.【解析】设函数()24xf x x =+-,∵(1)10,(2)40f f =-<=>,又∵()f x 是增函数,∴函数()24xf x x =+-在区间[1,2]有唯一的零点,则方程24xx +=在区间(1,2)有唯一一个实数解. 取区间[]1,0作为起始区间,用二分法逐次计算如下由上表可知区间[]1.375,1.5的长度为0.1250.2<, ∴函数)(x f 零点的近似值可取1.375(或1.5).高一寒假作业第9天 函数模型及应用1.B 2.B3.2250【解析】设彩电的原价为a ,∴(10.4)80270a a +⋅%-=, ∴0.12270a =,解得2250a =.∴每台彩电的原价为2250元. 4.②③④5.【解析】依题意知:242024x y -=,即5(24)4x y =-, ∴阴影部分的面积22555(24)(24)(12)180444S xy y y y y y ==-=--=--+, ∴当12y =时,S 有最大值为180.6. 【解析】据题意,A 产品的利润函数可设为1()f x k x =,B 产品的利润函数可设为()g x k =.由图知,15(1)(4)42f g ==,, ∴1544k k ==12,,∴1()4f x x =,()g x =(2)设投入乙产品的资金为x 万元,投入甲产品的资金为10x -(万元),企业获得的总利润y 万元,则10(10)()4x y f x g x -=-+=+542x =-+1565) (010)4216x =-+≤≤2.52=,即254x =,max 6516y =,答:当甲产品投资3.75万元,乙产品投资6.25万元时,能使企业获得最大利润,其最大利润为6516多少万元.。

寒假作业 必修二.docx

寒假作业  必修二.docx

数学(必修二)期末质量检测试题一、选择题(本大题共12小题,每小题5分,共60分)直线2x-y=7与直线3x+2y-7=0的交点是()已知A (-1, 0), B (-2, -3),则直线AB 的斜率为直线3x+y+l=0和直线6x+2y+l=0的位置关系是(C. 垂直于同一平面的两条直线平行 已知圆的方程为x 2+y 2-6x=0.则该圆的圆心和半径分别是(和交线平行,②如果一条直线和一个平面内的两条相交直线都垂直,那么这条直线垂直于这个平面③如果一个平面内的无数条直线都平行于另一个平面,那么这两个平面互相平行 ④ 如果一个平面经过另一个平面的一条垂线,则这两个平面垂直 其中正确的命题个数有()A. 1B. 2C. 3D. 4 9. 若正四棱台的上底边长为2,下底边长为8,高为4,则它的侧面积为()A. 50B. 100C. 248 D,以上答案都不对10. 过点P (4,-l )且与直线3x-4y+6=0垂直的直线方程是( )A.4x+3y-13=0B.4x-3y-19=01. A. (3, -1) B. (-1, 3) C. (-3, -1)D. (3, 1) 2. 3. A. 1/3 B. 1 C. 1/2D. 3 直线x - y + 3 = 0的倾斜角是() A. 30° B. 45°C. 60°D. 90° 4. 5. A,重合 B.平行 C.垂直D.相交但不垂直 下列命题为真命题的是( )A. 平行于同一平面的两条直线平行B. 平行于同一直线的两平面平行 D.垂直于同一直线的两条直线平行)7. 8. A. (0, 0), r=3C. (-3, 0), r=3 B.D. 球面面积等于它的大圆面积的(A. 1B. 2 给出以下四个命题:①如果一条直线和一个平面平行, (3, 0), r=3 (3, 0), r=9C. 3D. 4 经过这条直线的平面和这个平面相交,那么这条直线 6.12.点P(x 0,y 0)在圆子+ y2 =「2内,则直线x o x+ y o y = r 2和已知圆的公共点的个数为 ( ) A. 0 B. 1 C. 2 D.不能确定二、填空题(每题4分,共16分)13.经过两圆x 2 + y 2 =9和(x + 4)2+(y + 3)2 =8的交点的直线方程 14,过点(1, 2),且在两坐标轴上截距相等的直线方程 15, 一个圆柱和一个圆锥的底面卓彳主和它们的高都与某一个球的直径相等,这时圆柱、 圆锥、球的体积之比为.C.3x-4y-16=0D. 3x+4y-8=011. 如图⑴、⑵、(3)、 ⑷为四个几何体的三视图,根据三视图可以判断这四个几何体依 △侧视图(3)(4) A.三棱台、三棱柱、圆锥、圆台 C.三棱柱、正四棱锥、圆锥、圆台B.三棱台、三棱锥、圆锥、圆台D.三棱柱、三棱台、圆锥、圆台 次分别为(正视图俯视图 俯视图16.已知两条不同直线农、I,两个不同平面a、(3 ,给出下列命题:①若/垂直于a内的两条相交直线,贝iJZ±«;②若l//a,贝I”平行于a内的所有直线;③若m u a , I u /3且/_Lm,则a_L”;④若I u ° , I La ,则 a _L ” ;⑤若mua , lu 0且a〃”,则m//l;其中正确命题的序号是三、解答题(6道题,共74分)17.(本大题12分)如图是一个圆台形的纸篓(有底无盖),它的母线长为50cm,两底面直径分别为40 cm和30 cm;现有制作这种纸篓的塑料制品50m2,问最多可以做这种纸篓多少个?18.(本大题12分)求经过直线L1: 3x + 4y - 5 = 0与直线L2: 2x - 3y + 8 = 0的交点M,且满足下列条件的直线方程(1)与直线2x + y + 5 = 0平行;(2)与直线2x + y + 5 = 0垂直;19.(本大题12分)求圆心在L:y-3x = O上,与x轴相切,且被直线/2 :x-y = O截得弦长为2〃的圆的方程.20.(本大题12分)如图,ABCD-AiBiGDi是正四棱柱(I)求证:BD±平面ACCiA;(II)若o是A© 的中点,求证:AO〃平面BDCi21.(本大题12分,文科只做第一问,理科都做)在正方体ABCD-ABCiDi中,E、F分别是BB】、CD的中点.(1)证明:ADI. (2).求AE与0F所成的角;⑶.设AAi=2,求点F到平面AiEDi的距离.22.(本大题14分)已知方程x2 + y2 -2x-4y + m = 0.(1)若此方程表示圆,求m的取值范围;(2)若(1)中的圆与直线x + 2y-4 = 0相交于M, N两点,且0M10N (0为坐标原点)求的值;(3)在(2)的条件下,求以MN为直径的圆的方程.。

人教版高中英语必修二高一寒假作业英语3Word版含答

人教版高中英语必修二高一寒假作业英语3Word版含答

高一英语寒假作业(三)2014.1满分:150分时间:120分钟第Ⅰ卷(选择题共95分)第一部分:英语知识运用(共四节,满分55分)第一节语音知识(共5小题,每小题1分,满分5分)从A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项,并在答题卡上将该选项涂黑。

1.bite A .swift B. basis C. arise D. simplify2.host A. motto B poster C. operator D. logical3.question A. situation B suggestion C. invitation D. attention4.character A. charge B change C. chance D. chemistry5.magical A. drug B argue C. change D. bargain第二节情景对话(共5小题,每小题1分,满分5分)根据对话情景和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项,并在答题卡上将该选项涂黑。

选项中有两个为多余选项。

Z: Hello, are you Mr. Smith from the United States?M: Yes, Robert Smith.Please call me Robert.6 .Z: My pleasure.Welcome to China.My name is Zhang Lin.You can call me Lin.This is my card.M: Thank you.And 7 .Z: Oh, good, thanks.How was the journey?M: 8 , although a little tiring..Z: Then let’s get your things and go to the hotel now.M: Oh, thank you.9 ?Z: It’s about thirty minutes’ drive.By the way, we are going to have a dinner party for you this evening.M: It’s very kind of you.10 ?Z: Six thirty.I’ll pick you up at six o’clock.M: Ok, see you then.Z: Bye.A.It was OKB.Where is the hotelC.Here is my cardD.Where shall we goE.Thank you for meeting meF.How many people are going thereG.What time does it begin第三节语法和词汇知识(共15小题,每小题1分,满分15分)从每小题的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项涂黑。

贵州省2014届高三寒假作业(2)英语 Word版含答案

贵州省2014届高三寒假作业(2)英语 Word版含答案

【首发】贵州省2013-2014学年高三寒假作业(2)英语 Word版含答案一、单项填空(共15小题:每小题1分,满分15分)从A. B. C. D四个选项中,选出可以填入空白处的最佳选硕,并在答题卡上将该项涂黑。

1.He was guilty _______ murder, and was sentenced to death.A. withB. forC. ofD. To2.Mr. Smith approved _______ the company.A. me to leaveB. for my leavingC. of me to attendD. of my leaving3.—What do you think of Thomas?—Well, he is good, warm-hearted, hard-working and int elligent; _______, I can’t speak too highly of him.A. in a wordB. as a resultC. by the wayD. on the contrary4.---How many pens would you like, Madame?----Well, I want _______ these.A. three dozenB. three dozen ofC. three dozensD. three dozens of5.This field of scientific research remains________.A. to be untouchingB. being touchedC. to be untouchedD. untouched6.—It is said that the famous cyclist_________ his parents is to visit our city next week.—I heard the news _________.A. and; tooB. as well as; as wellC. as well as; as well asD. with; either7.–Do you need any help, Lucy?--Yes. The job is I could do myself.A. less thanB. more thanC. no more thanD. not more than8.–Why do n’t you _____ to a more sensible method?-- Well, I am thinking about it.A. switch onB. switch offC. switch overD. switch through9.What I’ve just got for Christmas is ________ attractive ipad, ______ present I havebeen longing for.A. an; aB. an; theC. the; aD. the; the10.I’m very tired now, but _________ I must finish the work today.A. somewhatB. sometimeC. anyhowD. anywhere11.Thailand is in the __________(东南的) part of Asia.A southeasternB southeastenC southeastonD eastsouthen12.After a heated discussion, the employees presented many ______ suggestionswhich might help improve the quality of the company’s product.A. accurateB. optimisticC. positiveD. temporary13.We went up to the roof, ________ we had a good view of the whole village .A. whereB. from whichC. from whereD. which14.The experiment shows that proper amounts of exercise, if _______ regularly, canimprove our health.A. being carried outB. carried outC. carrying outD. to carry out15.The impatient driver received a ticket for speeding. He so fast.A.mustn’t have driven B.wouldn’t have drivenD.shouldn’t have driven二、完型填空(共20小题;每小题1.5分,满分30分)阅读下面短文,从短文后各题所给的四个选项(A, B, C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑I was driving in my car the other day. The sun was out, the radio was playing, and I was __16__ along. The song was a __17__ one and even my weak voice sounded good singing it. Then it __18__, however. The sweet sound of the music __19__ and there came the __20__ news. Gas prices _21___ again. Fans of two sports teams got into fight. I sighed and wondered about this __22__ world we live in.__23__, I could take no more and turned off the __24___. Silence seemed preferable to listening to __25__ else about the crazy, competitive society we live in. I slowed down as I entered a town and _26___ the people as I drove by. A tall man was _27___ an elderly lady out of a car and helping her place her walker so she could go into store. A smiling woman was __28__ food onto the square while a dozen birds flew down to enjoy the __29__ being laid out before them. A young man was walking along, carrying his __30__ safely in his arms. When the daughter pulled the hat off his head, they both __31__. I laughed too as I looked at all of his _32___. The radio may have been off in my car, ___33__ in my heart I was __34___ singing.In truth, this world could have more kindness and less __35___. Kindness makes us all winners in this life and our life is full of kindness, love and joy.16. A. talking B. singing C. walking D. driving17. A. long B. boring C. joyful D. sad18. A. appeared B. remained C. happened D. stayed19. A. ended B. continued C. jumped D. fell20. A. sports B. business C. unpleasant D. welcome21. A. cut B. changed C. going down D. going up22. A. exciting B. interesting C. unusual D. crazy23. A. Finally B. Generally C. Secretly D. Calmly24. A. television B. radio C. gas D. lights25. A. anything B. everything C. something D. nothing26. A. touched B. watched C. avoided D. recognized27. A. freeing B. protecting C. helping D. keeping28. A. collecting B. moving C. covering D. throwing29. A. water B. bread C. grass D. food30. A. daughter B. son C. dog D. cat31. A. stopped B. stood C. laughed D. shouted32. A. weakness B. kindness C. loneliness D. safeness33. A. for B. or C. and D. but34. A. still B. just C. soon D. first35. A. silence B. development C. competition D. sickness三、阅读理解(共15小题:每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A. B. C和D)中,选出最佳选项,并在答题卡上将该项涂黑AIf “I love you” are the three nicest words in the English language, then “just in case” must be the three most annoying. They are often followed by “you never know…” suggesting a whole bundle(大量)of horrors if you don’t go along with the “just in case” idea.The first “just in case” you heard was probably from your mother. Do you remember “Always make sure your underwear is clean. Just in case”? You’d ask “In case of what?” and she’d say, “You never know…” If you kept asking ,she would finally say the ominous(不祥的)words. “You could be in an accident.” Through most of you school years, besides books, pens, etc… you carried around a heavy sweater, sunscreen, and a rain coat, just in case it got cold, or hot, or it rained. Thanks to Mom, “just in case” ruled your life. It was the same with H alloween candy.“Don’t eat in until Mom or Dad can check it out, just in case.”“In case of what?” you’d say.“You never know.”“Know what?”And then it came – the threat which ensured you would end up letting Mom and Dad eat all your candy. Simply because they loved you so much and wanted to protect you from harm. “There could be poison in it.”As we get older, the habit has become so deep-rooted that we force it on ourselves. We leave for the airport to catch our flight half an hour before the aircraft leaves its previous location, just in case the traffic is bad. “Just in case”. The phrase is so much a part of our lives. I’m going to print up this article now, but I’ll also save it onto my hard drive, just in case my computer crashes. I’ll also save it on a disc, and just in case the disc gets damaged. I’ll save it on my flash drive. Well…you never know. Thanks a lot, Mom!36.What does the author’s attitude towards the three words “just in case”?A. ObjectiveB. PositiveC. CriticalD. Indifferent37. Your parent always says the three words “just in case” because he or she wantsto .A. control your lifeB. bring you an easy lifeC. brighten your lifeD. ensure you a safe life38. What does the underlined “the threat” in the passa ge refer to?A. There could be bad traffic.B. You could be in an accident.C. There could be poison in your candyD. Mom and Dad could eat up your sweets.39. The main idea of this passage is that “Just in case” _____.A. threatens our lifeB. gets us in troubleC. becomes our habitD. makes life annoyingBFans of US television dramas watch their favorite series for different reasons: some want to improve their English skills, others just want to kill Some TV series are more than pure entertainment―they have a certain depth. Mad Men, which returned with a sixth season recently; Monday Mornings, which just finished its first season; and Modern Family, which sweeps the awards every year, are just a few examples.Why do these shows stand out among so many similar ones? TV critics Raymond Zhou will give you an idea of why some shows are better than others.Period drama—More than time travel Period dramas are intended to capture the ambience (气氛) of a particular era. Directors must therefore attract audiences as much by their recreation of a historical setting as by an interesting Mad Men is an excellent example of this balance being struck. Set in New York during the 1960s, it accurately shows US attitudes in the workplace through the alcoholism and chain-smoking common of the time, and places an absorbing plot right in its center.But rather than merely presenting a past decade, Mad Men’s subtle (微妙的) description of the struggles of white-collar workers at the time, both male and female, makes it stand out. “The series’ attention to detail is superb,” Raymond Zhou said. “For example, creator Matthew Weiner makes Don Draper―the leading role of th e series―drive a Buick instead of a Cadillac, because Weiner thinks the ad man lacks the self-pride to buy a luxury car. It’s this kind of attentiveness that raises the show’s artistic value.”Critics also recommend Another period drama that works is Broadwalk Empire, set during the prohibition period of the 1920s and 1930s in Atlantic City, New Jersey. Heather Havrilesky at Salon magazine noted how the show “revels in the oddities(怪事) of its time, peeling back the layers of polite society to reveal a shadow world of criminals and politicians working together to keep the liquor flowing.” Why does it appeal to viewers? Because they know that the “liquor” is a metaphor (暗喻) for today’s political scandals (丑闻)40. How many US TV series are mentioned in this passage?A. One.B. Two.C. Three.D. Four.41. The following statements are the reasons why many people are attracted by US television dramas EXCEPT that __________.A. US television dramas merely present a past decadeB. directors recreate a historical setting and adopt interesting storylinesC. the dramas can improve their English skills, and help people kill timeD. some TV series are more than pure entertainment, and they have a certain depth42. According to Raymond Zhou, Don Dr aper’s driving a Buick instead of a Cadillac shows __________.A. Mad Men attaches much importance to detailsB. Mad Men places an absorbing plot right in its centerC. the director wants to raise the show’s artistic valueD. Mad Men’s description of the s truggling white-collar workers makes it stand out43. What does the passage mainly talk about?A. Directors of US dramas.B. US dramas and their storylines.C. US period dramas to kill time.D. US dramas and their magic touch.CBut Albert and other scientists are doing something to help people help themselves. They offer "assertiveness training" courses A.T. for short. In the A.T. Course people learn that they have a right to be themselves. They learn to speak out and feel good about doing so. They learn to be aggressive without hurting other people.In one way, learning to speak out is to get rid of fear. A group taking an A.T. Course will help the timid person to lose his fear. But A.T. uses an even stronger motive--- he need to share. The timid person speaks out in the group because he wants to tell how he feels. Whether or not you speak up for yourself depends on your self-respect. If someone you face is more "important" than you, you may feel less of a person. You start to doubt your answers to problems. You can get to feel good about yourself. And once you do you can learn to speak out.44. The problem the writer talks about is that __________.A. some people buy things they don't wantB. some people are afraid to speak out for their rightsC. there are too many superiorsD. some people don't think enough of themselves45. The cause of the problem talked about in this passage is that _________.A. some people have a low self-respectB. people don’t share enoughC. salesmen talk people into buying things they don't wantD. there is always someone around who he "knows better"46. The A.T. Course often _______.A. make people distrust their own answersB. make things more favorable for "superiors"C. help people know as much as their "superiors"D. help people become more important47. A good title for this passage could be "__________".A. The Need to ShareB. Talk Back When NecessaryC. One Way to Build Self-RespectD. One Way to Train Speaking AbilityDMost friendships die a nature death: people move, change jobs, or start different stages of life. Other friendships, however, end unexpectedly. When a friendship is over and you don’t understand why, it can be especially painful. Sometimes a f riend ends your relationship without telling you why.The loss of friendship might be worth reflecting on. Knowing when a friendship is over and why it ends may help you build stronger friendships in the future.●See if you can find a problem.When a friendship is over, examine your relationship. Perhaps you remember your friend complaining that you’re always late. Maybe you seldom return your friend’s phone calls. When a friend ends your relationship, try to find out the reasons why the friendship is over.● Writer a letter to your friend .Express you feelings about the friendship. Do you miss seeing them? Do you have any regrets? Would you act differently if you were still friends? Make it an honest communication.● Express you feeling of being hurt or ang er.Write or talk about how you feel in a letter. When a friendship is over, it’s important to communicate exactly how hurt you feel, and why. Write until you have nothing left to say. When a friend ends your relationship, you do have the right to express yourself.● Communicate that you are open to pick up the friendship .When a friendship is over and you want to reconnect some day, send Christmas, or birthday cards. Say hi and send greetings through mutual(共有的) friends. When a friendship is over, don’t give up until you’re ready.● Decide to make your present friendships better.An adviser once told me that simply talking about your relationship strengthens your relationship. Talk to your present friends. Are they happy with your friendship? If a friend ends your relationship, learn something from it.48.The underlined phrase “reflecting on” in Paragraph 2 is closest in meaning to .A. keeping onB. giving upC. thinking aboutD. getting angry49.What can we know from “See if you can find a problem.”?A. You are always late when you and your friend plan to go out.B. Perhaps your friendship is over because of your problem.C. Your friend is fond of complaining all the time.D. You often refuse to answer your friend’s phone calls.50. When a friendship is over, you may do all the following EXCEPT .A. ask your friends whose fault on earth it isB. talk about how you feel about your friendshipC. write a letter to your friend to tell your regretsD. send your greetings to your friend before giving up四、七选五(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

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高一年级英语预科下学期第一次周考组题人:刘海萍2014.3.2第一节单项填空 (共20小题;每小题1分,满分20分)21. – The police have been ______ the area for quite a long time.–I‟ve also noticed that. What have they been ______?A. searching; searchingB. searching for; searchingC. searching for; searching forD. searching; searching for22. I thought I knew the way, but _____ I got lost.A. somewhatB. somehowC. anyhowD. anyway23. The manager cares about the workers, and he _____.A. is thought highlyB. thinks highly ofC. is highly thought ofD. is highly thinking24. I‟d like to buy him a present _____ his helping me with my English.A. in turnB. in returnC. by turnsD. in return for25. Mrs. Han, _____ her two sons, speaks good Chinese. They often talk in Chinese.A. as good asB. as well asC. andD. so well as26. I was really anxious about you. You _____ home without a word.A. mustn‟t have leftB. shouldn‟t have leftC. couldn‟t have leftD. needn‟t have left27. I go to see a film _____.A. every two weeksB. every third weeksC. each three weeksD. each three weeks28. Generally speaking, children under 6 are not _____ to school.A. chargedB. admittedC. acceptedD. received29. Don‟t worry. Th e hard work that you do now _____ later in life.A. will be repaid C. was being repaidB. has been repaid D. was repaid30. In many people‟s opinion, that company, though relatively small, is pleasant _____.A. to deal withB. dealing withC. to be dealt withD. dealt with31. – How long _____ at this job?– Since 1990.A. were you employedB. have you been employedC. had you been employedD. will you be employed32. It will not be a long time _____ Mr. Black _____ back from abroad.A. before; comesB. since; has comeC. before; will comeD. after; will come 33. The old man would appreciate _____ if you could do him that favor.A. itB. oneC. thatD. this34. Nowadays many high buildings _____ on both sides of the streets in our city.A. will buildB. are being builtC. will be builtD. were built35. Was it in 1969 _____ the American astronauts succeeded _____ landing onthe moon?A. when; onB. that; onC. when; inD. that; in36. More attention should be _____ equipment in our factory so that we can increase our production.A. paid to improvingB. paid to improveC. taken to improveD. taken to improving37. Don‟t get angry with him any mo re. _____, he has tried his best.A. At allB. In allC. After allD. First of all38. “So much for today. Next class I‟ll _____ the language points,” Mr. Lee said to the class.A. care aboutB. watch overC. pay attention toD. deal with39. The reason _____ Old French made contributions to Middle English is _____ English borrowed many words from it.A. why; becauseB. that; becauseC. why; thatD. that; that40. There are a group of foreign visitors in our school this term, and _____ are from the UK.A. three of whomB. three of whom theyC. three of themD. who of three第二节完形填空(共20小题,每小题1分,满分20分 )Jenna,a popular girl from Westwood Middle School,had graduated first in her class and was ready for new 41 in high school. 42 ,high school was different. In the first week,Jenna went to tryouts(选拔赛)for cheerleaders(啦啦队队员).She was competing against very talented girls,and she knew it would be 43 for her to be selected. Two hours later,the 44 read a list of the girls for a second tryout. Her heart 45 as the list ended without her name. Feeling 46 ,she walked home carrying her schoolbag full of homework.Arriving home,she started with math. She had always been a good math student,but now she was 47 .She moved on to English and history,and was 48 to find that she didn‟t have any trouble with those subjects.Feeling better,she decided not to 49 math for the time being.The next day Jenna went to see Mrs. Biden about being on the school 50 .Mrs. Biden wasn‟t as enthusiastic(热情的)as Jenna. “I‟m sorry,but we have enough 51 for the newspaper already.Come back next year and we'll talk then.” Jenna smiled 52 and left. “Why is high school so 53 ?”she sighed.Later in 54 class,Jenna devoted herself to figuring out the problems that hadgiven her so much 55 .By the end of class,she understood how to get 56 right.As she gathered her books,Jenna decided she‟d continue to try to 57 at her new school. She wasn‟t sure if she‟d succ eed,but she knew she had to 58 .High school was just as her mom had said,“You will feel like a small fish in a big pond 59 a big fish in a small pond.The challenge is to become the 60 fish you can be.”41. A.qualities B.bases C.challenges D.concerns42. A.Therefore B.However C.Otherwise D.Besides43. A.difficult B.easy C.hopeful D.unfair44. A.eyewitness B.leader C.artist D.judge45. A.jumped B.sank C.doubted D.arose46. A.calm B.amazed C.terrible D.lonely47. A.struggling B.improving C.complaining D.working48. A.upset B.disappointed C.shocked D.relieved49. A.dream of B.prepare for C.worry about D.give up50. A.orgnization B.newspaper C.radio D.team51. A.volunteers B.teammates C.cheerleaders D.writers52. A.wildly B.weakly C.excitedly D.gratefully53. A.similar B.ordinary C.different D.familiar54. A.math B.physics C.history D.English55. A.shortcoming B.guidance C.trouble D.error56. A.it B.them C.all D.that57. A.fit in B.give in C.calm down D.stay up58. A. graduate B. try C. rely D. survive59. A.in return for B.in search of C.in charge of D.instead of60. A.youngest B.smallest C.best D.thinnest第三部分阅读理解(共两节,满分30分)第一节(共10小题;每小题2分,满分20分)AChina is a land of bicycles. At least it was back in 1992 when I traveled the country. Back then everyone seemed to be riding a bicycle. Millions of them, all black. Cars were rare. Yet since my arrival in Beijing last year, I have found the opposite is true. There are millions of cars. However, people still use their bicycles to get around. For many, it‟s the easiest and cheapest way to travel today. Bicycles also come in different colors---silver, green, red, blue, yellow, whatever you want.It‟s fun watching people biking. They rush quickly through crossroads, move skillfully through traffic, and ride even on sidewalks(人行道). Bicycles allow people the freedom to move about that cars just can‟t provide.Eager to be part of this aspect of Chinese culture, I decided to buy a bicycle. Great weather accompanied my great buy. I immediately jumped up on my bicycle seat and started home.My first ride home was orderly (守秩序的). To be safe, I stayed with a “pack” of bikers while cars on the streets came running swiftly out of nowhere at times. I did not want to get hit. So I took the ride carefully.Crossing the streets was the biggest problem. It was a lot like crossing a major highway back in the United States. The streets here were wide, so crossing took time, skill and a little bit of luck.I finally made it home. The feeling on the bicycle was amazing. The air hitting my face and going through my hair was wonderful. I was sitting on top of the world as I passed by places and people. Biking made me feel alive.61. According to the author, why are bicycles still popular in China today?A. Because they are traditional and safe .B. Because they are convenient and inexpensive.C. Because they are colorful and available.D. Because they are fast and environment friendly.62. The author decided to buy a bicycle because he intended _________.A. to ride it for funB. to use it for transportC. to experience local skillsD. to improve his riding skills63. How did the author feel about his street crossing?A. It was boring.B. It was difficult.C. It was lively.D. It was wonderful.64. Which of the following best describes the author‟s biking experience?A. The author enjoyed showing off his biking skills.B. The author was annoyed by the air while riding.C. The author was praised by the other bikers.D. The author took great pleasure in biking.BAre you looking for some new and exciting places to take your kids (孩子) to? Try some of these places:●Visit art museums. They offer a variety of activities to excite your kids' interest.Many offer workshops for making land-made pieces, traveling exhibits, book signings by children's favorite writer, and even musical performances and other arts.●Head to a natural history museum. This is where kids can discover the past fromdinosaur(恐龙) models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up.●Go to a Youtheater. Look for one in your area offering plays for child and familyvisitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet(木偶)making and stagemake-up are just a couple of the special offerings you might find.Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They'll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums.65. If a child is interested in the universe, he probably will visit .A. a YoutheaterB. an art museumC. a natural history museumD. a hands-on science museum66. What can kids do at a Youtheater?A. Look at rock collections.B. See dinosaur models.C. Watch puppet making.D. Give performances.67. What does "hands-on science" mean in the last paragraph?A. Science games designed by kids.B. Learning science by doing things.C. A show of kids' science work.D. Reading science books.C“In deed,”George Washington wrote in his diary in 1785, “some kind of fly, or bug, had begun to eat the leaves before I left home.”But the father of America was not the father of bug. When Washington wrote that, Englishmen had been referring to insects as bugs for more than a century, and Americans had already created lightning-bug(萤火虫). But the English were soon to stop using the bugs in their language, leaving it to the Americans to call a bug a bug in the nineteenth and twentieth centuries.The American bug could also be a person, referring to someone who was crazy about a particular activity. Although fan became the usual term, sports fans used to be called racing bugs, baseball bugs, and the like.Or the bug could be a small machine or object, for example, a bug-shaped car. The bug could also be a burglar alarm, from which comes the expression to bug, that is, “to install (安装) an alarm”. Now it means a small piece of equipment that people use for listening secretly to others‟conversation. Since the 1840s, to bug has long meant “to cheat”, and since the 1940s it has been annoying.We also know the bug as a flaw in a computer program or other design. That meaning dates back to the time of Thomas Edison. In 1878 he explained bugs as “little problems and difficulties”that required months of study and labor to overcome in developing a successful product. In 1889 it was recorded that Edison “had been up the two previous nights discovering …a bug‟ in his invented record player.”68. We learn from Paragraph 1 that __________________.A.Americans had difficulty in learning to use the word bugB.George Washington was the first person to call an insect a bugC.the word bug was still popularly used in English in the nineteenth centuryD.both Englishman and Americans used the word bug in the eighteenth century69. What does the word “flaw” in the last paragraph probably mean?A. Explanation.B. Finding.C. Origin.D. Fault.70. The passage is mainly concerned with__________________.A. the misunderstanding of the word bugB. the development of the word bugC. the public views of the word bugD. the special characteristics of the word bug第二卷(共30分)(请把答案写在答题卡上)第一节:短文改错(共10小题,每小题1分,满分10分)As is known to all that the Internet is playing a more and more important part on our daily life. On it, we can not only read news at home or abroad , but also get much information as possible. For instance, we are often send e-mails or make telephone calls to our families as well as our friends. However, we can go to school on the net, read different kind of books and even teach ourselves English. We could also enjoy music, watching sports and play computer games. We can even do shopping without left our homes.2013-2014学年度张家口一中高一年级第一学期寒假作业检测英语试题参考答案听力1-5 CBAAB 6-10 CBCAB 11-15 BACAA 16-20 BABAC单选21-25 DBCDB 26-30 BABAA 31-35 BAABD 36-40 ACDCC 完型41-45 CBADB 46-50 CADCB 51-55 DBCAC 56-60 BABDC阅读理解61-65BCBDC 66-70 CBDDB 71-75 BFGDE短文改错1.As →It2. on →in3. or →and4. get后加as5. 去掉are6. However →Besides7. could-can 8. kind →kinds 9.watching →watch10. left →leaving参考范文Dear Peter,How are you? I feel extremely upset these days.As you know, I am crazy about pop music and pop singers. I always spend much tine listening to the songs which I like very much. And CDs cost me a large quantity of money which I should have spent on books. Because I can‟t finish my homework on time, my parents and teachers are not fond of me. They insist that I give up this hobby.What should I do? Can you give me some advice? I‟m looking forward to hearing from you?Yours,Li Hua2013-2014学年度张家口一中高一年级第一学期寒假作业检测英语试题参考答案听力1-5 CBAAB 6-10 CBCAB 11-15 BACAA 16-20 BABAC单选21-25 DBCDB 26-30 BABAA 31-35 BAABD 36-40 ACDCC完型41-45 CBADB 46-50 CADCB 51-55 DBCAC 56-60 BABDC阅读理解61-65BCBDC 66-70 CB DDB 71-75 BFGDE短文改错2.As →It2. on →in3. or →and4. get后加as5. 去掉are6. However →Besides7. could-can8. kind →kinds9.watching →watch 10. left →leaving参考范文Dear Peter,How are you? I feel extremely upset these days.As you know, I am crazy about pop music and pop singers. I always spend much tine listening to the songs which I like very much. And CDs cost me a large quantity of money which I should have spent on books. Because I can‟t finish my homework on time, my parents and teachers are not fond of me. They insist that I give up this hobby.What should I do? Can you give me some advice? I‟m looking forward to hearing from you?Yours,Li Hua。

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