2015年三年高考两年模拟答案

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2015临沂二模 山东省临沂市2015届高三第二次模拟考试理综物理试题 Word版含答案

2015临沂二模 山东省临沂市2015届高三第二次模拟考试理综物理试题 Word版含答案

2015年高考模拟试题(一)理科综合2015.5 本试卷分第I卷和第Ⅱ卷两部分,共16页。

满分300分。

考试用时150分钟。

答题前,请将答题卡第l、3面左上方的姓名、座号、考生号等项目填写清楚,用右手食指在第l面座号后指定位置按手印,并将答题卡第2、4面左上方的姓名、座号按要求填写正确。

考试结束后,将本试卷和答题卡一并交回。

第I卷 (必做,共107分)注意事项:1.第I卷共20小题,l~13题每小题5分,14~20题每小题6分,共107分。

2.每小题选出答案后,用2B铅笔把答题卡上对应的答案标号涂黑。

如需改动,用橡皮擦干净后,再涂写在其答案标号上。

不涂答题卡,只答在试卷上不得分。

以下数据可供答题时参考:相对原子质量:H 1 C 12 N 14 O 16 S 32 Na 23 Fe 56 Cu 64 Zn 65二、选择题(共7小题,每小题给出的四个选项中,有的只有一个选项正确,有的有多个选项正确,全部选对的得6分,选对但不全的得3分,有选错的得0分.)14.如图所示,一足够长的水平传送带以恒定的速度向右传动。

将一物体轻轻放在皮带左端,以v、a、x、F表示物体速度大小、加速度大小、位移大小和所受摩擦力的大小。

下列选项正确的是15.如图所示,实线和虚线分别表示某电场的电场线和等势线,下列说法中正确的是A.c点场强大于a点场强B.c点电势高于a点电势C.c、b两点间的电势差大于c、a两点间的电势差D.若将一试探电荷+q由a点移动到b点,电场力做正功16.如图所示,一根不可伸长的光滑轻绳系在两竖直杆等高的A、B两点上,将一悬挂了衣服的衣架挂在轻绳上,处于静止状态。

则A.仅增大两杆间距离,再次平衡时,绳中张力变大B.仅增大两杆间距离,再次平衡时,绳中张力保持不变C.仅将B点位置向上移动一点,再次平衡时,绳中张力变大D.仅将B点位置向下移动一点,再次平衡时,绳中张力变小17.在发射地球同步卫星的过程中,卫星首先进入椭圆轨道I,然后在Q点通过改变卫星速度,让卫星进入地球同步轨道Ⅱ。

山东临沂市2015届高三第二次模拟考试理综试题(含答案)

山东临沂市2015届高三第二次模拟考试理综试题(含答案)

2015年高考模拟试题(一)理科综合2015.5 本试卷分第I卷和第Ⅱ卷两部分,共16页。

满分300分。

考试用时150分钟。

答题前,请将答题卡第l、3面左上方的姓名、座号、考生号等项目填写清楚,用右手食指在第l面座号后指定位置按手印,并将答题卡第2、4面左上方的姓名、座号按要求填写正确。

考试结束后,将本试卷和答题卡一并交回。

第I卷 (必做,共107分)注意事项:1.第I卷共20小题,l~13题每小题5分,14~20题每小题6分,共107分。

2.每小题选出答案后,用2B铅笔把答题卡上对应的答案标号涂黑。

如需改动,用橡皮擦干净后,再涂写在其答案标号上。

不涂答题卡,只答在试卷上不得分。

以下数据可供答题时参考:相对原子质量:H 1 C 12 N 14 O 16 S 32 Na 23 Fe 56 Cu 64 Zn 65一、选择题(本题包括13小题,每小题只有一个选项符合题意)1.下列对细胞结构与功能关系的叙述,错误的是A.兴奋的传导和传递都与细胞膜的选择透过性有关B.高尔基体膜可转化成细胞膜的一部分C.液泡内的糖类、无机盐等物质可调节内环境稳态D.线粒体内膜上的某些蛋白类物质能降低化学反应的活化能2.涡虫是具有较强再生能力的雌雄同体动物,其80%的基因与人类同源。

实验表明,将2cm长的涡虫切成200多块,每块都能很快发育成一条完整的涡虫。

下列叙述错误的是A.涡虫体内组织中干细胞的比例较高B.涡虫生活史中的细胞增殖方式都属于有丝分裂C.离体涡虫切块的细胞具有较高的全能性D.研究涡虫的再生基因利于寻找延缓人体器官衰老的方法3.下列有关H7N9禽流感病毒的说法,错误的是A.以35S标记的鸡胚细胞为培养基,可获得35S标记的H7N9B.用32P标记的H7N9进行侵染实验,可证明RNA是其遗传物质C.H7N9的核酸不与蛋白质结合形成染色体,故其属于原核生物D.H7N9与HIV病毒都容易发生变异4.下列实验操作中,会达到预期实验目的的是A用健那绿和吡罗红混合染色剂染色,可观察DNA和RNA在细胞中的分布B.将酶与底物在室温下混合,再作不同保温处理,可探究温度对酶活性的影响C.用新配制的NaOH与CuSO4混合液,可检测待测样液中是否含有蛋白质D.用盐酸与酒精的混合液解离洋葱根尖,可观察到有丝分裂不同时期的细胞5.针杆藻和星杆藻是两种单细胞硅藻,在相同条件下单独培养及混合培养时的数量变化曲线依次为甲、乙、丙,图中虚线表示培养液中硅酸盐的浓度变化。

山东临沂市2015届高三第二次模拟考试英语试题(含答案)

山东临沂市2015届高三第二次模拟考试英语试题(含答案)

2015年高考模拟试题(一)英语2015.5 本试卷分第I卷(选择题)和第Ⅱ卷(非选择题)。

第一卷1至11页,第二卷11至12页。

考试结束后。

将本试卷和答题卡一并交回。

第I卷注意事项:1.答第I卷前,考生务必用0.5毫米黑色签字笔将自己的姓名、座号、考号、县区和科类填写在答题卡和试卷规定的位置上。

2.第I卷每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案标号。

不能答在本试卷上,否则无效。

第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。

录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。

第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。

每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

例:How much is the shirt?A.£19.15.B.£9.18.C.£9.15.答案是C。

1.What are the speakers talking about?A.Their breakfast.B.Their friend Mathew.C.The woman’s schedule.2.Why was the man late for work this morning?A.He was in a car accident.B.His car broke down halfway.C.He couldn’t get his car started.3.What will the boy do now?A.Go grocery shopping.B.Finish his school project.C.Help the girl with her homework.4.Where is probably the woman’s cell phone?A.On the desk.B.At her sister’s house.C.With her sister’s boyfriend.5.What did the woman learn about on her trip?A.How Museums are run.B.The history of New York.C.People living in Europe long ago.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。

三年高考两年模拟高考物理新课标一轮复习习题:第2章第3讲力的合成与分解含答案

三年高考两年模拟高考物理新课标一轮复习习题:第2章第3讲力的合成与分解含答案

第3讲力的合成与分解A组基础题组1.如图为两个共点力的合力F随两分力夹角θ的变化而变化的图像,则这两个力的大小分别为( )A.2 N,3 NB.3 N,2 NC.4 N,1 ND.4 N,3 N2.(2013重庆理综,1,6分)如图所示,某人静躺在椅子上,椅子的靠背与水平面之间有固定倾斜角θ。

若此人所受重力为G,则椅子各部分对他的作用力的合力大小为( )A.GB.G sin θC.G cos θD.G tan θ3.(2015湖北宜昌第一次调研,15)如图所示,晾晒衣服的绳子两端分别固定在两根竖直杆上的A、B两点,绳子的质量及绳与衣架挂钩间摩擦均忽略不计,衣服处于静止状态。

如果保持绳子A端、B端在杆上位置不变,将右侧杆平移到虚线位置,稳定后衣服仍处于静止状态。

则( )A.绳子的弹力变大B.绳子的弹力不变C.绳对挂钩弹力的合力变小D.绳对挂钩弹力的合力不变4.(2015湖南五市十校联考,15)(多选)如图所示,固定的半球面右侧是光滑的,左侧是粗糙的,O点为球心,A、B为两个完全相同的小物块(可视为质点),小物块A静止在球面的左侧,受到的摩擦力大小为F1,对球面的压力大小为N1;小物块B在水平力F2作用下静止在球面的右侧,对球面的压力大小为N2,已知两小物块与球心连线和竖直方向的夹角均为θ,则( )A.F1∶F2=cos θ∶1B.F1∶F2=sin θ∶1C.N1∶N2=cos2θ∶1D.N1∶N2=sin2θ∶15.(2015浙江临安昌化中学测试,3)如图所示,一个“Y”形弹弓顶部跨度为L,两根相同的橡皮条自由长度均为L,在两橡皮条的末端用一块软羊皮(长度不计)做成裹片。

若橡皮条的弹力与形变量的关系满足胡克定律,且劲度系数为k,发射弹丸时每根橡皮条的最大长度为2L(弹性限度内),则发射过程中裹片对弹丸的最大作用力为( )A.kLB.2kLC.kLD.kL6.(2015重庆一中月考,16)如图是剪式千斤顶,当摇动把手时,螺纹轴就能迫使千斤顶的两臂靠拢,从而将汽车顶起。

三年高考两年模拟高考物理新课标一轮复习习题:第13章第1讲机械振动含答案

三年高考两年模拟高考物理新课标一轮复习习题:第13章第1讲机械振动含答案

第1讲机械振动A组基础题组1.如图所示是弹簧振子的振动图像,由此图像可得,该弹簧振子做简谐运动的公式是( )A.x=2 sin (2.5πt+) cmB.x=2 sin(2.5πt-) cmC.x= sin (2.5πt-) cmD.x=2 sin 2.5πt cm2.(多选)一弹簧振子的位移x随时间t变化的关系式为x=0.1 sin (2.5πt)m,位移x的单位为m,时间t的单位为s,则( )A.弹簧振子的振幅为0.1 mB.弹簧振子的周期为0.8 sC.在t=0.2 s时,振子的运动速度最大D.在任意0.2 s时间内,振子的位移均为0.1 mE.在任意0.8 s时间内,振子的路程均为0.4 m3.[2013江苏单科,12B(1)]如图所示的装置,弹簧振子的固有频率是4 Hz。

现匀速转动把手,给弹簧振子以周期性的驱动力,测得弹簧振子振动达到稳定时的频率为1 Hz,则把手转动的频率为。

A.1 HzB.3 HzC.4 HzD.5 Hz4.装有砂粒的试管竖直静浮于水面,如图所示。

将试管竖直提起少许,然后由静止释放并开始计时,在一定时间内试管在竖直方向近似做简谐运动。

若取竖直向上为正方向,则以下描述试管振动的图像中可能正确的是( )5.一个做简谐运动的弹簧振子,周期为T,振幅为A,已知振子从平衡位置第一次运动到x=处所用的最短时间为t1,从最大的正位移处第一次运动到x=处所用的最短时间为t2,那么t1与t2的大小关系是( )A.t1=t2B.t1<t2C.t1>t2D.无法判断6.(多选)甲、乙两弹簧振子的振动图像如图所示,则可知( )A.两弹簧振子完全相同B.两弹簧振子所受回复力最大值之比F甲∶F乙=2∶1C.振子甲速度为零时,振子乙速度最大D.两振子的振动频率之比f甲∶f乙=2∶1E.振子乙速度为最大时,振子甲速度不一定为零7.(2015江苏常州模拟)(多选)铺设铁轨时,每两根钢轨接缝处都必须留有一定的间隙,匀速运行的列车经过轨端接缝处时,车轮就会受到一次冲击。

三年高考两年模拟高考数学专题汇编第一章集合与常用逻辑用语3文

三年高考两年模拟高考数学专题汇编第一章集合与常用逻辑用语3文

第三节简单的逻辑联结词、全称量词与存在量词A组三年高考真题(2016~2014年)1.(2015·湖北,3)命题“∃x0∈(0,+∞),ln x0=x0-1”的否定是( )A.∀x∈(0,+∞),ln x≠x-1B.∀x∉(0,+∞),ln x=x-1C.∃x0∈(0,+∞),ln x0≠x0-1D.∃x0∉(0,+∞),ln x0=x0-12.(2014·湖南,1)设命题p:∀x∈R,x2+1>0,则綈p为( )A.∃x0∈R,x20+1>0 B.∃x0∈R,x20+1≤0C.∃x0∈R,x20+1<0 D.∀x∈R,x2+1≤03.(2014·安徽,2)命题“∀x∈R,|x|+x2≥0”的否定是( )A.∀x∈R,|x|+x2<0 B.∀x∈R,|x|+x2≤0C.∃x0∈R,|x0|+x20<0 D.∃x0∈R,|x0|+x20≥04.(2014·湖北,3)命题“∀x∈R,x2≠x”的否定是( )A.∀x∉R,x2≠x B.∀x∈R,x2=xC.∃x∉R,x2≠x D.∃x∈R,x2=x5.(2014·福建,5)命题“∀x∈[0,+∞),x3+x≥0”的否定是( )A.∀x∈(-∞,0),x3+x<0B.∀x∈(-∞,0),x3+x≥0C.∃x0∈[0,+∞),x30+x0<0D.∃x0∈[0,+∞),x30+x0≥06.(2014·天津,3)已知命题p:∀x>0,总有(x+1)e x>1,则綈p为( )e x≤1A.∃x0≤0,使得(x0+1)0e x≤1B.∃x0>0,使得(x0+1)0C.∀x>0,总有(x+1)e x≤1D.∀x≤0,总有(x+1)e x≤17.(2014·重庆,6)已知命题p:对任意x∈R,总有|x|≥0;命题q:x=1是方程x+2=0的根.则下列命题为真命题的是( )A.p∧綈q B.綈p∧qC.綈p∧綈q D.p∧q8.(2014·辽宁,5)设a,b,c是非零向量.已知命题p:若a·b=0,b·c=0,则a·c=0;命题q:若a∥b,b∥c,则a∥c.则下列命题中真命题是( )A .p ∨qB .p ∧qC .(綈p )∧(綈q )D .p ∨(綈q )B 组 两年模拟精选(2016~2015年)1.(2016·四川资阳模拟)下列命题,为真命题的是( ) A.∃x ∈R ,x 2≤x -2 B.∀x ∈R ,2x>2-x 2C.函数f (x )=1x是定义域上的减函数D.“被2整除的整数都是偶数”的否定是“至少存在一个被2整除的整数不是偶数” 2.(2016·河南适应性模拟练习)已知命题p :∀x >0,x +4x ≥4:命题q :∃x 0∈R +,2x 0=12.则下列判断正确的是( ) A.p 是假命题 B.q 是真命题C.p ∧(綈q )是真命题D.( 綈p )∧q 是真命题3.(2016·长春四校联考)下列命题错误的是( )A.命题“若x 2-3x +2=0,则x =1”的逆否命题为“若x ≠1,则x 2-3x +2≠0” B.命题p :存在x 0∈R ,使得x 20+x 0+1<0,则綈p :对任意x ∈R ,都有x 2+x +1≥0 C.若p ∧q 为假命题,则p ,q 均为假命题 D.“x <1”是“x 2-3x +2>0”的充分不必要条件4.(2016·广东茂名第二次模拟)已知命题綈p :存在x ∈(1,2)使得e x-a >0,若p 是真命题,则实数a 的取值范围为( ) A.(-∞,e) B.(-∞,e] C.(e 2,+∞)D.[e 2,+∞)5.(2015·北京西城区高三期末)设命题p :∀x >0,2x >log 2x ,则綈p 为( ) A.∀x >0,2x<log 2x B.∃x >0,2x≤log 2x C.∃x >0,2x <log 2xD.∃x >0,2x≥log 2x6.(2015·广东湛江二模)下列四个命题中,假命题为( ) A.存在x ∈R ,使lg x >0 B.存在x ∈R ,使12x =2 C.对于任意x ∈R ,2x>0D.对于任意x ∈R ,x 2+3x +1>07.(2015·玉溪一中高三统考)已知命题p :函数f (x )=2ax 2-x -1(a ≠0)在(0,1)内恰有一个零点;命题q :函数y =x 2-a在(0,+∞)上是减函数.若p 且綈q 为真命题,则实数a 的取值范围是( ) A.(1,+∞) B.(1,2]C.(-∞,2]D.(-∞,1]∪(2,+∞)8.(2015·泰安一模)已知命题p:∃x∈R,x2+1<2x;命题q:若mx2-mx-1<0恒成立,则-4<m≤0,那么( )A.“綈p”是假命题B.“綈q”是真命题C.“p∧q”为真命题D.“p∨q”为真命题9.(2015·浙江金华二模)已知命题p:“存在a>0,使函数f(x)=ax2-4x在(-∞,2]上单调递减”,命题q:“存在a∈R,使∀x∈R,16x2-16(a-1)x+1≠0”.若命题“p∧q”为真命题,求实数a的取值范围.答案精析A组三年高考真题(2016~2014年)1.解析特称性命题的否定是全称性命题,且注意否定结论,故原命题的否定是:“∀x∈(0,+∞),ln x≠x-1”.故选A.答案 A2.解析命题p为真命题,命题q为假命题,所以命题綈q为真命题,所以p∧綈q为真命题,选A.答案 A3.解析对于命题p:因为a·b=0,b·c=0,所以a,b与b,c的夹角都为90°,但a,c的夹角可以为0°或180°,故a·c≠0,所以命题p是假命题;对于命题q:a∥b,b∥c 说明a,b与b,c都共线,可以得到a,c的方向相同或相反,故a∥c,所以命题q是真命题.选项A中,p∨q是真命题,故A正确;选项B中,p∧q是假命题,故B错误;选项C中,綈p是真命题,綈q是假命题,所以(綈p)∧(綈q)是假命题,所以C错误;选项D中,p∨(綈q)是假命题,所以D错误.故选A.答案 A4.解析全称命题的否定,要对结论进行否定,同时要把全称量词换成存在量词,故命题p 的否定为“∃x0∈R,x20+1≤0”,故选B.答案 B5.解析命题的否定是否定结论,同时把量词作对应改变,故命题“∀x∈R,|x|+x2≥0”的否定为“∃x0∈R,|x0|+x20<0”,故选C.答案 C6.解析全称命题的否定是特称命题:∃x∈R,x2=x,故选D.答案 D7.解析把全称量词“∀”改为存在量词“∃”,并把结论加以否定,故选C.答案 C8.解析 全称命题的否定是特称命题,所以命题p :∀x >0,总有(x +1)e x>1的否定是 綈p :∃x 0>0,使得(x 0+1)e x0≤1. 答案 BB 组 两年模拟精选(2016~2015年)1.解析 x 2-x +2=⎝ ⎛⎭⎪⎫x -122+74>0,即x 2>x -2,故A 错;当x =0时,20<2-02,故B 错;函数f (x )=1x在其定义域上不是单调函数,故C 错,只有D 正确.答案 D2.解析 当x >0时,x +4x≥2x ·4x=4,故p 为真命题,当x >0时,2x >20=1,故命题q 为假命题,故选C.答案 C3.解析 p ∧q 为假命题,表示p 与q 不全为真命题. 答案 C4.解析 因为p 是真命题,所以∀x (1,2),有e x -a ≤0,即a ≥e x ,又y =e x 在(1,2)有y <e 2,所以a ≥e 2. 答案 D5.解析 全称命题的否定为特称命题,故选B. 答案 B6.解析 注意“存在”和“任意”的意义,易知A 、B 、C 均正确. 而对于D 中,取x =-1,则x 2+3x +1=-1<0,故D 不正确. 答案 D7.解析 由题意,命题p ⎩⎪⎨⎪⎧Δ=1+8a >0,f (0)·f (1)=(-1)·(2a -2)<0,解得a >1.命题q :2-a <0,得a >2,∴綈q :a ≤2,故由p 且綈q 为真命题,得1<a ≤2,故选B. 答案 B8.解析 对于命题p ,x 2+1-2x =(x -1)2≥0,即对任意的x ∈R ,都有x 2+1≥2x ,因此命题p 是假命题.对于命题q ,若mx 2-mx -1<0恒成立,则当m =0时,mx 2-mx -1<0恒成立, 当m ≠0时,由mx2-mx -1<0恒成立得⎩⎪⎨⎪⎧m <0,Δ=m 2+4m <0,即-4<m <0. 因此若mx 2-mx -1<0恒成立,则-4<m ≤0,故命题q 是真命题.因此,“綈p ”是真命题,“綈q ”是假命题, “p ∧q ”是假命题,“p ∨q ”是真命题,选D. 答案 D9.解 若p 为真,则对称轴x =--42a =2a 在区间(-∞,2]的右侧,即2a≥2,∴0<a ≤1.若q 为真,则方程16x 2-16(a -1)x +1=0无实数根, ∴Δ=[-16(a -1)]2-4×16<0,∴12<a <32.∵命题“p ∧q ”为真命题,∴⎩⎪⎨⎪⎧0<a ≤1,12<a <32,∴12<a ≤1.故实数a 的取值范围为⎝ ⎛⎦⎥⎤12,1.。

2015年高考模拟卷(全国卷2)

2015年高考模拟卷(全国卷2)

第Ⅰ卷第一部分阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每小题所给的四个选项(A、B、C和D)中,选出最佳答案,并在答题卡上将该项涂黑。

APioneering front-row White House journalist Helen Thomas died at age 92 after a long illness. Thomas covered 10 presidents over nearly half a century, and became a legend in the industry.She was always at White House news conferences —sitting front and center —where she frequently annoyed government spokesmen with her pointed questions. Thomas began covering the White House for United Press International when John F. Kennedy became president in 1961 and was a fixture there until her retirement in 2010.In a written statement, Obama called Thomas a “true pioneer*’ and said she kept the presidents she covered — including himself — on their toes.Thomas, the daughter of Lebanese immigrants, was born in Winchester, Kentucky, on August 4,1920. She was one of nine children. Thomas was raised in Detroit, where she attended Wayne State University and graduated with a bachelor's degree in 1942. In describing her job, Thomas once said, “I’ve never covered the president in any way other th an that he is ultimately responsible.”' Thomas embraced the freedoms of a columnist with vigor ($£>&). question scemeJ. off-limits for her. Colleagues remember her as a genuinely fearless woman who asked the toughed questions of presidents, no matter their party.In January 2009, as President George Bush was preparing to leave office, Thomas aimed her editorial guns at him and his administration. In a commentary, she slammed (抨击) Bush for wha t she considered his failings, including leading the country “into a senseless war against Iraq, a calamity still under way as he leaves office almost sixyears after the invasion.” She considered him “the worst president ever.”1. According to the text, Helen Thomas was .A. a wise politicianB. a writing pioneerC. a legendary journalistD. a White House adviser2. The underlined word “fixture” in Paragraph 3 proba bly meansA. an object firmly fixed in placeB. a person regarded fixed in the same positionC. someone to fix tricky problemsD a device to secure something somewhere3. What can we learn about Helen Thomas from the text?A. She covered 10 presidents over a period of 49 years.B. She often raised unreasonable questions.C. She was born and brought up in Lebanon.D. She was criticized by President Obama.4. How did Thomas comment on George Bush?A. He should be kept on his toes.B. He was forced to be responsible.C. He didn’t deserve to be president.D. He shouldn't have started the Iraq War.BEnergy drinks arc as harmful as drugs and should be banned from schools, according to a British government adviser.Drinks such as Monster, Red Bull and Relentless combine sugar and caffeine(咖啡因)in such high quantities that children arc becoming hyperactive (过度活跃的) anddifficult to control. Some 500ml cans contain the equivalent of more than 13 teaspoons of sugar and 160mg of caffeine — which is about the same as in four cans of cola.Yesterday, government adviser John Vincent warned, “Energy drinks are effectively another form of drugs. It has a hugely damaging effect on children’s ability to concentrate, bow they feel and it is having health effects."Evidence from teachers and pupils is that children who drink these cans may report feeling sick, shaky and dizzy. Claire Duggan, a school public health adviser, said some children report feeling unwell after downing the drinks.Ian Fenn, headmaster of Burnage Media Arts College in Manchester, has banned the drinks following requests from staff.He told BBC, “Staff came to me and said at a school where we are very conscious about the nutritional value of what students eat. We can't allow boys to bring in drinks that are really unhealthy for them and consume not one, but two or three."Some children even choose to have an energy drink for breakfast rather than a bowl of cereal. A survey published recently found that one in 20 teenagers goes to school on a can of energy drink.A British Soft Drinks Association spokesman said, “We arc clear that energy drinks are not recommended for children, and we want to get that message across to young people and parents.”5. What do we know about drinks like Red Bull from the text?A. They contain about four times as much sugar and caffeine as Coca-Cola.B. They bring about health benefits as well as side effects.C. They distract children from other kinds of drinks.D. They make children more energetic and active.6. According to the text, some British schoolchildren •A. have energy drinks for their mealsB. feel unwell after drinking energy drinksC. are hard to control when choosing their drinksD. are aware of the nutritional value of their drinks7. What can be inferred from the text?A. Energy drinks do not affect adults at all.B. Parents request Ian Fenn to ban energy drinks.C. Burnage Media Arts College is concerned about students' health.D. All children drinking energy drinks report the same symptoms.8. The text mainly tells us that energy drinks .A. do as much damage as medicineB. can cause children to feel uneasyC. contain too much of nutrientsD. harm kids and should be banned from schoolsCLet’s say your company has a problem and needs a creativ e solution. A common approach is to gather your best people in a room to brainstorm. Ideas are batted around, and, in theory, the best answer emerges.But it doesn’t always work that way. Plenty of research has proven the limitation of brainstorming as members can only talk in turn. Groups tend to generate fewer ideas than individuals.Psychologist Tony McCaffrey has a solution to our troubled search for solutions. He calls it “brainswarming”, which he has trademarked. His pilot research has found that brainswarming generates more than four times as many ideas as brainstorming.A group starts with a large surface — perhaps a whiteboard — and puts a goal at the top if it A few resources to address the problem are listed at the bottom. No talking is allowed.While it may seem silly not to talk, there are several improvements with McCaffrey’s approach.There’s a natural division of labor as people can focus on what they re best at. Atop-down thinker might work near the top of the chart, while others may work at the bottom on thinking of potential resources. This alleviates(减轻)the inefficiency of traditional brainstorming, where the conversation is focused on a single topic.With brainswarming, those who are shy aren't as likely to get bored like in traditional conversations, where the outgoing people tend to grab the floor. All ideas stand on equal footing. Everyone can place their Post-It Notes (便利贴) on the board. Worthy ideas brought up early in a meeting won’t be forgotten as a wealth of new ideas crowd the conversation later. These ideas will always be on the board, for everyone to notice and consider.9. What do people do when they brainstorm for a solution?A. They discuss common approaches.B. They propose solutions one by one.C. They select the best people to debate.D. They explore unique ways to solve the problem.10. When brainswarming, people___________.A. search for potential resourcesB. work on the same goal put on fee boardC. write down their ideas and stick them on the boardD. identify each other’s strengths and divide labour accordingly11. Which is NOT an advantage of brainswarming?A. It helps to raise work efficiency.B. It produces over four times as many ideas.C. It keeps all worthy ideas on the board.D. It encourages shy people to speak out12. Which is the best title for this text?A. A Breakthrough in Marketing ScienceB. Brainswarming, the Science for Growing IdeasC. Brainswarming Has Been TrademarkedD. Brainstorming and brainswanning DifferDDear March — Come inHow glad I am-I hoped for you before ...Who knocks? That April -Lock the Door -I will not be. pursued -He stayed away a Year to call -When I am occupied -But trifles look so trivial -As soon as you have come ...This lovely poem was written by Emily Dickinson, who is considered a major American poet though she was not accorded this honor until well after her death. Emily Dickinson was born on December 10, 1830, in Amherst, Massachusetts. She attended school for only one year. Throughout ha life, she seldom left her home and visitors were few. She lived in almost complete isolation from the outside world.She admired the poetry of Robert and Elizabeth Barrett Browning, as well as John Keats Though she was dissuaded (劝阻) from reading the poetry of her contemporary Walt Whitman by rumors of its disgracefulness, the two poets arc now connected by die distinguished place they hold as the founders of a uniquely American poetic voice. While Dickinson was extremely prolific (多产的) as a poet, she was not publicly recognized during her lifetime. Upon her death, Dickinson’s family discovered forty hand-bound volumes of nearly 1,800 poems. Her younger sister began to share the enormous body of work that Emily behind.Emily’s odd punctuation, capitalization, and formatting did not meet with standard publishing "approval” for earlier editions. There is a whimsical (古怪的) nature to many of her poems, as the subject of death was the most frequent theme.13. In the poem, the poetess was speaking toA. a little girlB. a long-lost family memberC. a nice seasonD. a cute animal14. What is a feature of Emily Dickinson’s poems?A. They do not pay attention to rhymes.B. They resemble those of Walt Whitman.C. They have a strange format.D. They reflect her personal and social life.15. According to the text, Emily Dickinson .A. was completely homeschooled and had a talent for writing poemsB. was greatly influenced by four of her contemporary poetsC. is regarded as a leading poet in American literatureD. published a large number of poems during her lifetime第二节(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。

三年高考两年模拟高考物理新课标一轮复习习题:第3章第4讲牛顿运动定律的综合应用(二)含答案

三年高考两年模拟高考物理新课标一轮复习习题:第3章第4讲牛顿运动定律的综合应用(二)含答案

第4讲牛顿运动定律的综合应用(二)A组基础题组1.如图所示,传送带保持1 m/s的速度顺时针转动。

现将一质量m=0.5 kg的物体轻轻地放在传送带的a点上,设物体与传送带间的动摩擦因数μ=0.1,a、b间的距离L=2.5 m,则物体从a点运动到b点所经历的时间为 (g取10 m/s2)( )A. sB.(-1)sC.3 sD.2.5 s2.一条足够长的浅色水平传送带自左向右匀速运行。

现将一个木炭包无初速地放在传送带的最左端,木炭包将会在传送带上留下一段黑色的径迹。

下列说法中正确的是( )A.黑色的径迹将出现在木炭包的左侧B.木炭包的质量越大,径迹的长度越短C.传送带运动的速度越大,径迹的长度越短D.木炭包与传送带间动摩擦因数越大,径迹的长度越短3.(多选)如图所示,表面粗糙的传送带静止时,物块由传送带顶端A从静止开始滑到传送带底端B用的时间是t,则( )A.当传送带向上运动时,物块由A滑到B的时间一定大于tB.当传送带向上运动时,物块由A滑到B的时间一定等于tC.当传送带向下运动时,物块由A滑到B的时间一定等于tD.当传送带向下运动时,物块由A滑到B的时间一定小于t4.(2015江西六校联考)(多选)如图所示,质量为m1的足够长的木板静止在光滑水平面上,其上放一质量为m2的木块。

t=0时刻起,给木块施加一水平恒力F,分别用a1、a2和v1、v2表示木板、木块的加速度和速度大小,图中可能符合运动情况的是( )5.(多选)如图甲为应用于机场和火车站的安全检查仪,用于对旅客的行李进行安全检查。

其传送装置可简化为如图乙的模型,紧绷的传送带始终保持v=1 m/s的恒定速率运行。

旅客把行李无初速度地放在A处,设行李与传送带之间的动摩擦因数μ=0.1,A、B间的距离为2 m,g 取10 m/s2。

若乘客把行李放到传送带上的同时也以v=1 m/s的恒定速率平行于传送带运动到B处取行李,则( )A.乘客与行李同时到达B处B.乘客提前0.5 s到达B处C.行李提前0.5 s到达B处D.若传送带速度足够大,行李最快也要2 s才能到达B处6.如图甲所示,静止在光滑水平面上的长木板B(长木板足够长)的左端放置着静止的小物块A。

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• 1. the, a , to ,were, are ,is, out, being destroyed, from, investigation
• 2. and, They, of, which, including, trapped, Later, were killed, more, the
• 3. who, imaginary, am writing, met, gradually, happier, him, with, to stay, a
• 4. DCBCA ACACB BDACD BDBCA • 5. ACBC

Book 3 Unit 4
• 1. to , who/that, being attacked, it, /, the, up, There
• 4. ACBAC BDAC
Book4 Unit 2
• 1. up, disturb, equip, focused, generosity, to tell, leading
• 2. Born, has been, a, without, however, are fed, less developed/developing, of, Although, himself
• 2. since, planting, religious, the, who, like, for, and, ones, end
• 3. to make, bottles, filled, saved, total, where, asking, who, the, proudly
• 4. ACBCD BABAC ACBBC AACBD • 5. BDC
Book 1 Unit 1
• 1. added , through, exactly, entirely, a , when, in , a , the
• 2. they, where, that, well, since, awake, by, a , had seen , hanging
• 3.clearly, to , that/which, the, strength, were trying, whether/if, creatures, forming, greatest
• 4. BACBD ACDBC ABDDC BDACB • 5. DBAC
Book 2 Unit 5
• 1. sensitive, addition, which, your, To be honest, up , in, on , importance
• 2. because, as, fame, themselves, are paid, to become, loosely, had planned, looking, that
• 2. born, first, a , against, was sentenced, to blow/blowing, later, was made, and, finally
• 3. leaders, my, embarrassed, an, was shining, better, had devoted, that, could, likely
Book 3 Unit 2
• 1. patience, with, strength, really, down, combined, curious
• 2. when, than, newly, at, thinner, back, which, saying, contains, a
• 3. had, to, so, much, points, what, crying, a , healthy, removed,
• 3. dealing, friends, a , better, made, before, to use, it , given , totally
• 4. CABC CDACB
Book 1 Unit 5
• 1.planting, equally, to , in , principles, where, being fined
• 3. especially, woods, different, straight, why, turned, the, judgment, turning, which
• 4. ABCBD BCAAC CBACA DDBDB
• 5. DBCBB
Book 3 Unit 1
• 1. admission, Reminded, belief, about, What, leading, walking
• 4. BACDA CDACD BAABD CCBDA • 5. DBABA
Book 2 Unit 1
• 1. as, that, to , from, for, survive, worth • 2. were used, which/that, in, decorated,
However, Later, it, wonders, missing, by • 3. action, devoted, in, knowing, criminal,
physically, because, they, were filming, brought • 4. CDACD BABAB DCAAD CBDCB • 5. ADBAC
Book 2 Unit 2
• 1. charged, what, on, for, why, admitted, against, for, regular
• 2. four, basis, are held, Instead, that, agreed, but, to live, a , among
• 3. it, petting, that, died, difficulty, shorter, quietly, Surprised, explanation, how
• 4. BADC BCCDA
Book 2 Unit 3
• 1. signaling, solved, the , the , to deal, As , of , following, careless
• 2. have been changed, simplifying, before, who/that, any, how, to solve, From, smaller, the
• 2. Although, blocks, what, dressed, However, setting, themselves, warmer, After, company
• 3. providing, turns, which, had, without, tired, that,absolutely, torn , is spent-
• 4. CADAB CDBAC DBCAB ABDDC
• 5. DCBD
Book 1 Unit 2
• 1. Actually, based , a , To be recognized, if , across, the
• 2. The , spoken, less, who, especially, than, both, was settled, learning, will tell
• 3. hungry, classmates, surprised, but, as, was hit, totally, sleeping, It , when
• 4. BDCA BDA
Book 4 Unit 3
• 1. designed, whether/if, suggestions, fortunately, violence, off, of, on,
• 4. DABCD ADCA
Book 3 Unit 5
• 1. approximately, Measuring, impression, writing, hesitate, it, the
• 2. across, We, on, wild, is , which, the , When, sitting, visiting
• 2. widely, to create, What, when, in,more important, continued, it, millions, were followed
• 3. throwing, best, wildly, the, comfortable, Terrified, below, to cling, as , wasn't destroyed
• 2. a , with, which, be gone, where, longer, because, she, no , finally
• 3. because, displays, but, quickly, pressing, parking, what, anxiously, patiently, leaving
• 3. directions, exactly, but, information, in, finding, consideration, confused, How, more
• 4. ACCBA DDADD CDAAC BCADB
• 5. ABBC
Book 2 Unit 4
• 1. at, surprised, relief, it, into, changing, preparations, having
• 4. AACDB BDCBA DCBAA CCDBA • 5. CBAC
Book 3 Unit 3
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