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20162017学年广东省广州十六中七年级下期中数学试卷

20162017学年广东省广州十六中七年级下期中数学试卷

2016-2017学年广东省广州十六中七年级(下)期中数学试卷一、选择题(共10小题,每题3分)1.(3分)下列图形中,不能通过其中一个四边形平移得到的是()A. B.C.D.2.(3分)下列命题中真命题是()A.同位角相等B.两点之间,线段最短C.相等的角是对顶角D.互补的角是邻补角3.(3分)实数(﹣3)2的平方根是()A.3 B.﹣3 C.±3 D.±4.(3分)下列实数:,,,,,1.010010001…,3.14,其中无理数有()A.1个 B.2个 C.3个 D.4个5.(3分)点P(﹣,1)在()A.第一象限B.第二象限C.第三象限D.第四象限6.(3分)小华将平面直角坐标系中的A(﹣4,3)沿着x轴方向向左平移了3个单位得到了B点,则B点的坐标是()A.(﹣7,3)B.(﹣1,3)C.(﹣4,0)D.(﹣4,6)7.(3分)如图,AB∥CD,DA⊥AC,垂足为A,若∠ADC=35°,则∠1的度数为()A.65°B.55°C.45°D.35°8.(3分)小龙和小刚两人玩“打弹珠”游戏,小龙对小刚说:“把你珠子的一半给我,我就有10颗珠子”.小刚却说:“只要把你的给我,我就有10颗”.如果设小刚的弹珠数为x颗,小龙的弹珠数为y颗,则列出的方程组是()A.B.C.D.9.(3分)如果是方程x﹣3y=﹣3的一组解,那么代数式5﹣a+3b的值是()A.8 B.5 C.2 D.010.(3分)如图,AB∥CD,∠ABK的角平分线BE的反向延长线和∠DCK的角平分线CF的反向延长线交于点H,∠K﹣∠H=27°,则∠K=()A.76°B.78°C.80°D.82°二、填空题(共6小题,每题3分)11.(3分)如图,已知AC∥BD,若∠1=35°,则∠2=°.12.(3分)点M(﹣2,3)到x轴的距离是.13.(3分)若x3=27,则x=.14.(3分)已知x、y是二元一次方程组的解,则x+y=.15.(3分)如图,已知△ABC的周长为20cm,现将△ABC沿AB方向平移2cm 至△A′B′C′的位置,连接CC′,则四边形AB′C′C的周长是cm.16.(3分)如图,AB∥CD,OE平分∠BOC,OF⊥OE,OP⊥CD,∠ABO=a°.则下列结论:①∠BOE=(180﹣a)°;②OF平分∠BOD;③∠POE=∠BOF;④∠POB=2∠DOF.其中正确结论(填编号).三、解答题(共72分)17.(8分)化简求值(1)﹣﹣(2)|2﹣|+|3﹣|.18.(10分)解二元一次方程组(1)(2).19.(10分)如图,在平面直角坐标系中有三个点A(﹣3,2),B(﹣5,1),C (﹣2,0),P(a,b)是三角形的边AC上一点,三角形ABC经平移后得到三角形A′B′C′,点P的对应点为P′(a+4,b+3).(1)画出平移后的三角形A′B′C′,写出点A′、B′、C′三个点的坐标.(2)求四边形ACC′A′的面积.20.(8分)如图,已知AC⊥AB,ED⊥AB,垂足为A、D,∠CAF=80°.求∠DGF的度数.21.(12分)如图,AP,CP分别平分∠BAC,∠ACD,∠P=90°,设∠BAP=α.(1)用α表示∠ACP;(2)求证:AB∥CD;(3)若AP∥CF,求证:FC平分∠DCE.22.(12分)一家商店进行装修,若请甲、乙两个装修组同时施工,8天可以完成,需付两组费用共3520元,若先请甲组单独做6天,再请乙组单独做12天可以完成,需付费用3480元,问:(1)甲、乙两组工作一天,商店各应付多少钱?(2)已知甲单独完成需12天,乙单独完成需24天,单独请哪个组,商店所需费用最少?(3)若装修完后,商店每天可赢利200元,你认为如何安排施工更有利于商店?请你帮助商店决策.(可用(1)(2)问的条件及结论)23.(12分)如图,以直角三角形AOC的直角顶点O为原点,以OC、OA所在直线为x轴和y轴建立平面直角坐标系,点A(0,a),C(b,0)满足+|b ﹣2|=0.D为线段AC的中点.(1)则A点的坐标为;点C的坐标为.(2)在平面直角坐标系中,以任意两点P(x1,y1)、Q(x2,y2)为端点的线段中点坐标为(,).则D点的坐标为.(3)已知坐标轴上有两动点P、Q同时出发,P点从C点出发沿x轴负方向以1个单位长度每秒的速度匀速移动,Q点从O点出发以2个单位长度每秒的速度沿y轴正方向移动,点Q到达A点整个运动随之结束.设运动时间为t(t>0)秒.问:是否存在这样的t,使S△ODP =S△ODQ,若存在,请求出t的值;若不存在,请说明理由.(4)点F是线段AC上一点,满足∠FOC=∠FCO,点G是第二象限中一点,连OG,使得∠AOG=∠AOF.点E是线段OA上一动点,连CE交OF于点H,当点E 在线段OA上运动的过程中,的值是否会发生变化?若不变,请求出它的值;若变化,请说明理由.2016-2017学年广东省广州十六中七年级(下)期中数学试卷参考答案与试题解析一、选择题(共10小题,每题3分)1.(3分)下列图形中,不能通过其中一个四边形平移得到的是()A. B.C.D.【考点】Q1:生活中的平移现象.【分析】根据平移与旋转的性质得出.【解答】解:A、能通过其中一个四边形平移得到,错误;B、能通过其中一个四边形平移得到,错误;C、能通过其中一个四边形平移得到,错误;D、不能通过其中一个四边形平移得到,需要一个四边形旋转得到,正确.故选:D.【点评】本题考查了图形的平移,图形的平移只改变图形的位置,而不改变图形的形状和大小,学生易混淆图形的平移与旋转或翻转,导致误选.2.(3分)下列命题中真命题是()A.同位角相等B.两点之间,线段最短C.相等的角是对顶角D.互补的角是邻补角【考点】O1:命题与定理.【分析】根据平行线的性质对A进行判断;根据线段最短的公理对B进行判断;根据对顶角的定义对C进行判断;根据邻补角的定义对D进行判断.【解答】解:A、两直线平行,同位角相等,所以A选项错误;B、两点之间,线段最短,所以B选项正确;C、相等的角不一定是对顶角,所以C选项错误;D、有一条边共线且互补的两个角是邻补角,所以D选项错误.故选:B.【点评】本题考查了命题与定理:判断事物的语句叫命题;正确的命题称为真命题,错误的命题称为假命题;经过推理论证的真命题称为定理.3.(3分)实数(﹣3)2的平方根是()A.3 B.﹣3 C.±3 D.±【考点】21:平方根.【分析】根据平方根的定义解答可得.【解答】解:∵(﹣3)2=9,∴实数(﹣3)2的平方根是±3,故选:C.【点评】本题主要考查平方根,熟练掌握平方根的定义是解题的关键.4.(3分)下列实数:,,,,,1.010010001…,3.14,其中无理数有()A.1个 B.2个 C.3个 D.4个【考点】26:无理数.【分析】根据无理数的定义(无理数是指无限不循环小数)逐个判断即可.【解答】解:无理数有,,1.010010001…,共3个,故选:C.【点评】本题考查了无理数,能熟记无理数的定义是解此题的关键,注意:无理数含有①含π的,②开方开不尽的根式,③一些有规律的数.5.(3分)点P(﹣,1)在()A.第一象限B.第二象限C.第三象限D.第四象限【考点】D1:点的坐标.【分析】根据平面直角坐标系中各象限内坐标符号的特点解答即可.【解答】解:∵点P(﹣,1)的横坐标是负数,纵坐标是正数,∴点P在第二象限.故选:B.【点评】解答此题的关键是熟知平面直角坐标系中四个象限的点的坐标的特征:第一象限正正,第二象限负正,第三象限负负,第四象限正负.6.(3分)小华将平面直角坐标系中的A(﹣4,3)沿着x轴方向向左平移了3个单位得到了B点,则B点的坐标是()A.(﹣7,3)B.(﹣1,3)C.(﹣4,0)D.(﹣4,6)【考点】Q3:坐标与图形变化﹣平移.【分析】将点A的横坐标减去3,纵坐标不变即可得到B点的坐标.【解答】解:将平面直角坐标系中的A(﹣4,3)沿着x轴方向向左平移了3个单位得到了B点,则B点的坐标是(﹣4﹣3,3),即(﹣7,3).故选:A.【点评】此题主要考查坐标与图形变化﹣平移.掌握平移中的变化规律:横坐标右移加,左移减;纵坐标上移加,下移减是解题的关键.7.(3分)如图,AB∥CD,DA⊥AC,垂足为A,若∠ADC=35°,则∠1的度数为()A.65°B.55°C.45°D.35°【考点】JA:平行线的性质.【分析】利用已知条件易求∠ACD的度数,再根据两线平行同位角相等即可求出∠1的度数.【解答】解:∵DA⊥AC,垂足为A,∴∠CAD=90°,∵∠ADC=35°,∴∠ACD=55°,∵AB∥CD,∴∠1=∠ACD=55°,故选:B.【点评】本题主要考查了平行线的性质,垂直的定义等知识点,熟记平行线的性质定理是解题关键.8.(3分)小龙和小刚两人玩“打弹珠”游戏,小龙对小刚说:“把你珠子的一半给我,我就有10颗珠子”.小刚却说:“只要把你的给我,我就有10颗”.如果设小刚的弹珠数为x颗,小龙的弹珠数为y颗,则列出的方程组是()A.B.C.D.【考点】99:由实际问题抽象出二元一次方程组.【分析】设小刚的弹珠数为x颗,小龙的弹珠数为y颗,根据题意,列方程组即可.【解答】解:设小刚的弹珠数为x颗,小龙的弹珠数为y颗,由题意得,x+y=10,x+y=10化简得,.故选:A.【点评】本题考查了由实际问题抽象出二元一次方程组,解答本题的关键是读懂题意,设出未知数,找出合适的等量关系,列方程组求解.9.(3分)如果是方程x﹣3y=﹣3的一组解,那么代数式5﹣a+3b的值是()A.8 B.5 C.2 D.0【考点】92:二元一次方程的解.【分析】把x=a,y=b代入方程,再根据5﹣a+3b=5﹣(a﹣3b),然后代入求值即可.【解答】解:把x=a,y=b代入方程,可得:a﹣3b=﹣3,所以5﹣a+3b=5﹣(a﹣3b)=5+3=8,故选:A.【点评】本题考查了代数式的求值,正确对代数式变形,利用添括号法则是关键.10.(3分)如图,AB∥CD,∠ABK的角平分线BE的反向延长线和∠DCK的角平分线CF的反向延长线交于点H,∠K﹣∠H=27°,则∠K=()A.76°B.78°C.80°D.82°【考点】JA:平行线的性质.【分析】分别过K、H作AB的平行线MN和RS,根据平行线的性质和角平分线的性质可用∠ABK和∠DCK分别表示出∠H和∠K,从而可找到∠H和∠K的关系,结合条件可求得∠K.【解答】解:如图,分别过K、H作AB的平行线MN和RS,∵AB∥CD,∴AB∥CD∥RS∥MN,∴∠RHB=∠ABE=∠ABK,∠SHC=∠DCF=∠DCK,∠NKB+∠ABK=∠MKC+∠DCK=180°,∴∠BHC=180°﹣∠RHB﹣∠SHC=180°﹣(∠ABK+∠DCK),∠BKC=180°﹣∠NKB﹣∠MKC=180°﹣(180°﹣∠ABK)﹣(180°﹣∠DCK)=∠ABK+∠DCK﹣180°,∴∠BKC=360°﹣2∠BHC﹣180°=180°﹣2∠BHC,又∠BKC﹣∠BHC=27°,∴∠BHC=∠BKC﹣27°,∴∠BKC=180°﹣2(∠BKC﹣27°),∴∠BKC=78°,故选:B.【点评】本题主要考查平行线的性质,掌握平行线的判定和性质是解题的关键,即①两直线平行⇔同位角相等,②两直线平行⇔内错角相等,③两直线平行⇔同旁内角互补,④a∥b,b∥c⇒a∥c.二、填空题(共6小题,每题3分)11.(3分)如图,已知AC∥BD,若∠1=35°,则∠2=145°.【考点】JA:平行线的性质.【分析】首先根据两直线平行同位角相等可得∠1=∠3=35°,再根据邻补角互补计算出∠2的度数.【解答】解:如图,∵AC∥BD,∴∠1=∠3,∵∠1=35°,∴∠3=35°,∵∠1+∠2=180°,∴∠2=180°﹣∠3=180°﹣35°=145°,故答案为:145.【点评】此题主要考查了平行线的性质,关键是掌握平行线的性质:两直线平行,同位角相等.12.(3分)点M(﹣2,3)到x轴的距离是3.【考点】D1:点的坐标.【分析】根据点的坐标与其到x轴的距离的关系进行解答.【解答】解:M(﹣2,3)到x轴的距离是其纵坐标的绝对值,即为3.故填3.【点评】解答本题的关键是明确点的坐标与其到x轴的距离的关系.13.(3分)若x3=27,则x=3.【考点】24:立方根.【分析】根据立方根的定义解简单的高次方程.【解答】解:∵x3=27,∴x==3,故答案为:3【点评】此题是立方根,主要是用立方根的定义解简单的方程,解本题的关键是理解立方根的定义.14.(3分)已知x、y是二元一次方程组的解,则x+y=0.【考点】97:二元一次方程组的解.【分析】解方程组求得x、y的值,再把x与y的值代入x+y进行计算即可.【解答】解:,由①得,y=2x+3③,把③代入②得,x+8x+12=3,解得x=﹣1把x=﹣1代入③得y=1,∴方程组的解为,∴x+y=﹣1+1=0.故答案为0,【点评】本题考查了二元一次方程组的解和解二元一次方程组:同时满足二元一次方程组中各方程的未知数的值叫二元一次方程组的解;利用加减消元或代入消元解二元一次方程组.15.(3分)如图,已知△ABC的周长为20cm,现将△ABC沿AB方向平移2cm 至△A′B′C′的位置,连接CC′,则四边形AB′C′C的周长是24cm.【考点】Q2:平移的性质.【分析】根据平移的性质,经过平移,对应点所连的线段相等,对应线段相等,找出对应线段和对应点所连的线段,结合四边形的周长公式求解即可.【解答】解:根据题意,得A的对应点为A′,B的对应点为B′,C的对应点为C′,所以BC=B′C′,BB′=CC′,∴四边形AB′C′C的周长=CA+AB+BB′+B′C′+C′C=△ABC的周长+2BB′=20+4=24cm.故答案为:24.【点评】本题主要运用的知识点是:经过平移,对应点所连的线段平行且相等,对应线段平行且相等.16.(3分)如图,AB∥CD,OE平分∠BOC,OF⊥OE,OP⊥CD,∠ABO=a°.则下列结论:①∠BOE=(180﹣a)°;②OF平分∠BOD;③∠POE=∠BOF;④∠POB=2∠DOF.其中正确结论①②③(填编号).【考点】JA:平行线的性质.【分析】由于AB∥CD,则∠ABO=∠BOD=40°,利用平角等于得到∠BOC=(180﹣a)°,再根据角平分线定义得到∠BOE=(180﹣a)°;利用OF⊥OE,可计算出∠BOF=a°,则∠BOF=∠BOD,即OF平分∠BOD;利用OP⊥CD,可计算出∠POE=a°,则∠POE=∠BOF;根据∠POB=90°﹣a°,∠DOF=a°,可知④不正确.【解答】解:①∵AB∥CD,∴∠BOD=∠ABO=a°,∴∠COB=180°﹣a°=(180﹣a)°,又∵OE平分∠BOC,∴∠BOE=∠COB=(180﹣a)°.故①正确;②∵OF⊥OE,∴∠EOF=90°,∴∠BOF=90°﹣(180﹣a)°=a°,∴∠BOF=∠BOD,∴OF平分∠BOD所以②正确;③∵OP⊥CD,∴∠COP=90°,∴∠POE=90°﹣∠EOC=a°,∴∠POE=∠BOF;所以③正确;∴∠POB=90°﹣a°,而∠DOF=a°,所以④错误.【点评】本题考查了平行线的性质:两直线平行,内错角相等;两直线平行,同旁内角互补;两直线平行,同位角相等.三、解答题(共72分)17.(8分)化简求值(1)﹣﹣(2)|2﹣|+|3﹣|.【考点】2C:实数的运算.【分析】(1)直接利用算术平方根以及立方根的性质分别化简得出答案;(2)直接利用绝对值的性质化简得出答案.【解答】解:(1)﹣﹣=3﹣+2=2.5;(2)|2﹣|+|3﹣|=﹣2+3﹣=1.【点评】此题主要考查了实数运算,正确化简各数是解题关键.18.(10分)解二元一次方程组(1)(2).【考点】98:解二元一次方程组.【分析】(1)(2)用加减消元法解方程组即可.【解答】解:(1)①+②得到,3x=15,x=5,把x=5代入①得到,y=﹣1,∴.(2)①﹣②×2得到,﹣7x=7,x=﹣1把x=﹣1代入②得到y=3,∴【点评】本题考查二元一次方程组的解法,解题的关键是熟练掌握加减消元法、代入消元法解方程组,属于中考常考题型.19.(10分)如图,在平面直角坐标系中有三个点A(﹣3,2),B(﹣5,1),C (﹣2,0),P(a,b)是三角形的边AC上一点,三角形ABC经平移后得到三角形A′B′C′,点P的对应点为P′(a+4,b+3).(1)画出平移后的三角形A′B′C′,写出点A′、B′、C′三个点的坐标.(2)求四边形ACC′A′的面积.【考点】Q4:作图﹣平移变换.【分析】(1)直接利用平移的性质得出对应点位置进而得出答案;(2)利用四边形ACC′A′所在矩形面积减去周围三角形面积进而得出答案.【解答】解:(1)如图所示:△A′B′C′,即为所求,A′(1,5)、B′(﹣1,4)、C′(2,3);(2)四边形ACC′A′的面积为:5×5﹣×3×4﹣×1×2﹣×3×4﹣×1×2=11.【点评】此题主要考查了平移变换以及四边形面积求法,正确得出对应点位置是解题关键.20.(8分)如图,已知AC⊥AB,ED⊥AB,垂足为A、D,∠CAF=80°.求∠DGF的度数.【考点】J3:垂线.【分析】先根据平行线的性质求出∠EGF,再根据邻补角的性质即可解决问题.【解答】解:∵AC⊥AB,ED⊥AB,∴AC∥DE,∴∠GAC=∠EGF=80°,∴∠DGF=180°﹣∠EGF=180°﹣80°=100°.【点评】本题考查垂线的性质、平行线的性质、邻补角的性质,解题的关键是灵活应用这些知识解决问题,属于中考常考题型.21.(12分)如图,AP,CP分别平分∠BAC,∠ACD,∠P=90°,设∠BAP=α.(1)用α表示∠ACP;(2)求证:AB∥CD;(3)若AP∥CF,求证:FC平分∠DCE.【考点】JB:平行线的判定与性质.【分析】(1)由角平分线的定义可得∠PAC=α,在Rt△PAC中根据直角三角形的性质可求得∠ACP;(2)结合(1)可求得∠ACD,可证明∠ACD+∠BAC=180°,可证明AB∥CD;(3)由平行线的性质可得∠ECF=∠CAP,∠ECD=∠CAB,结合条件可证得∠ECF=∠FCD,可证得结论.【解答】(1)解:∵AP平分∠BAC,∴∠CAP=∠BAP=α,∵∠P=90°,∴∠ACP=90°﹣∠CAP=90°﹣α;(2)证明:由(1)可知∠ACP=90°﹣α,∵CP平分∠ACD,∴∠ACD=2∠ACP=180°﹣2α,又∠BAC=2∠BAP=2α,∴∠ACD+∠BAC=180°,∴AB∥CD;(3)证明:∵AP∥CF,∴∠ECF=∠CAP=α,由(2)可知AB∥CD,∴∠ECD=∠CAB=2α,∴∠DCF=∠ECD﹣∠ECF=α,∴∠ECF=∠DCF,∴CF平分∠DCE.【点评】本题主要考查平行线的判定和性质,掌握平行线的判定和性质是解题的关键,即①两直线平行⇔同位角相等,②两直线平行⇔内错角相等,③两直线平行⇔同旁内角互补,④a∥b,b∥c⇒a∥c.22.(12分)一家商店进行装修,若请甲、乙两个装修组同时施工,8天可以完成,需付两组费用共3520元,若先请甲组单独做6天,再请乙组单独做12天可以完成,需付费用3480元,问:(1)甲、乙两组工作一天,商店各应付多少钱?(2)已知甲单独完成需12天,乙单独完成需24天,单独请哪个组,商店所需费用最少?(3)若装修完后,商店每天可赢利200元,你认为如何安排施工更有利于商店?请你帮助商店决策.(可用(1)(2)问的条件及结论)【考点】9A:二元一次方程组的应用.【分析】(1)本题的等量关系是:甲做8天需要的费用+乙作8天需要的费用=3520元.甲组6天需付的费用+乙做12天需付的费用=3480元,由此可得出方程组求出解.(2)根据(1)得出的甲乙每工作一天,商店需付的费用,然后分别计算出甲单独做12天需要的费用,乙单独做24天需要的费用,让两者进行比较即可.(3)本题可将每种施工方法的施工费加上施工期间商店损失的费用,然后将不同方案计算出的结果进行比较,损失最少的方案就是最有利商店的方案.【解答】解:(1)设:甲组工作一天商店应付x元,乙组工作一天商店付y元.由题意得解得答:甲、乙两组工作一天,商店各应付300元和140元.(2)单独请甲组需要的费用:300×12=3600元.单独请乙组需要的费用:24×140=3360元.答:单独请乙组需要的费用少.(3)请两组同时装修,理由:甲单独做,需费用3600元,少赢利200×12=2400元,相当于损失6000元;乙单独做,需费用3360元,少赢利200×24=4800元,相当于损失8160元;甲乙合作,需费用3520元,少赢利200×8=1600元,相当于损失5120元;因为5120<6000<8160,所以甲乙合作损失费用最少.答:甲乙合作施工更有利于商店.【点评】解题关键是要读懂题目的意思,根据题目给出的条件,找出合适的等量关系:甲做8天需要的费用+乙作8天需要的费用=3520元.列出方程组,再求解.23.(12分)如图,以直角三角形AOC的直角顶点O为原点,以OC、OA所在直线为x轴和y轴建立平面直角坐标系,点A(0,a),C(b,0)满足+|b ﹣2|=0.D为线段AC的中点.(1)则A点的坐标为(0,4);点C的坐标为(2,0).(2)在平面直角坐标系中,以任意两点P(x1,y1)、Q(x2,y2)为端点的线段中点坐标为(,).则D点的坐标为(1,2).(3)已知坐标轴上有两动点P、Q同时出发,P点从C点出发沿x轴负方向以1个单位长度每秒的速度匀速移动,Q点从O点出发以2个单位长度每秒的速度沿y轴正方向移动,点Q到达A点整个运动随之结束.设运动时间为t(t>0)秒.问:是否存在这样的t,使S△ODP =S△ODQ,若存在,请求出t的值;若不存在,请说明理由.(4)点F是线段AC上一点,满足∠FOC=∠FCO,点G是第二象限中一点,连OG,使得∠AOG=∠AOF.点E是线段OA上一动点,连CE交OF于点H,当点E 在线段OA上运动的过程中,的值是否会发生变化?若不变,请求出它的值;若变化,请说明理由.【考点】KY:三角形综合题.【分析】(1)根据绝对值和算术平方根的非负性,求得a,b的值即可;(2)根据中点坐标公式进行解答即可;(3)先得出CP=t,OP=2﹣t,OQ=2t,AQ=4﹣2t,再根据S△ODP =S△ODQ,列出关于t的方程,求得t的值即可;(4)过H点作AC的平行线,交x轴于P,先判定OG∥AC,再根据角的和差关系以及平行线的性质,得出∠PHO=∠GOF=∠1+∠2,∠OHC=∠OHP+∠PHC=∠GOF+∠4=∠1+∠2+∠4,最后代入进行计算即可.【解答】解:(1)∵(a﹣2b)2+|b﹣2|=0,∴a﹣2b=0,b﹣2=0,解得a=4,b=2,∴A(0,4),C(2,0);故答案为(0,4),(2,0).(2)∵A(0,4),C(2,0),D为线段AC的中点,∴D(,),即D(1,2).故答案是:(1,2).(3)如图1中,由条件可知:P点从C点运动到O点时间为2秒,Q点从O点运动到A点时间为2秒,∴0<t≤2时,点Q在线段AO上,即CP=t,OP=2﹣t,OQ=2t,AQ=4﹣2t,∴S△DOP=OP•y D=(2﹣t)×2=2﹣t,S△DOQ=OQ•x D=×2t×1=t,∵S△ODP =S△ODQ,∴2﹣t=t,∴t=1;(4)的值不变,其值为2.理由如下:如图2中,∵∠2+∠3=90°,又∵∠1=∠2,∠3=∠FCO,∴∠GOC+∠ACO=180°,∴OG∥AC,∴∠1=∠CAO,∴∠OEC=∠CAO+∠4=∠1+∠4,如图,过H点作AC的平行线,交x轴于P,则∠4=∠PHC,PH∥OG,∴∠PHO=∠GOF=∠1+∠2,∴∠OHC=∠OHP+∠PHC=∠GOF+∠4=∠1+∠2+∠4,∴===2.【点评】本题考查三角形综合题、非负数的性质、三角形的面积、平行线的性质等知识,解题的关键是学会添加常用辅助线,学会用转化的思想思考问题,属于中考压轴题.。

2017广州十六中中考一模英语试题

2017广州十六中中考一模英语试题

2017广州十六中中考一模英语试题一、语法选择Have you ever felt uncomfortable? Many of __1__ feel uneasy when someone stands too close __2__ us, talks to us too __3__ or makes eye contact with us for too long. But have you ever wondered why those things make you uncomfortable?It’s all about personal peace, which means not only __4__ imaginary space around the body, but also the space around all the __5__. People feel that their space is being violated(侵犯) when they meet with an unwelcome sound, smell or look. This is probably why a man on a crowded bus shouting into his mobile phone or a woman next to you putting on strong perfume(香水) makes you feel __6__.__7__ people have had a stronger wish to protect their personal space or not in recent times is hard to say. Yet studies of airlines show that people have a strong desire(渴望) to have space to__8__. In a survey by Trip Advisor, a travel website, people said that if they __9__ pay more for some extra service, they would rather have larger seats than extra food.Although people may need their personal space, some hardly realize it. For example, people on a bus who hold newspapers __10__ their faces to read in fact keep a distance from strangers.Go and watch a library table. You will notice __11__ one of the corner seats will usually__12__ first, because they are the farthest way. What if someone sits __13__ you? Maybe you will pile up books as if to make a wall.Preference(偏好) for personal space are different from culture to culture. Scientists have found that Americans generally prefer more personal space than people from __14__ cultures. In Latin (拉丁人的) cultures, __15__, people are more comfortable standing near each other.1. A. we B. us C. our D. ours2. A. with B. in C. to D. at3. A. loudness B. louder C. loudly D. loudest4. A. a B. an C. the D./5. A. sense B. senses C. sensing D. sensings6. A. anger B. angry C. angers D. angrily7. A. Whether B. What C. That D. Which8. A. them B. their C. themselves D. they9. A. has to B. have to C. had to D. having to10. A. in the front B. in front C. in the front of D. in front of11. A. that B. what C. where D. if12. A. be taken B. be talking C. take D. takes13. A. opposite with B. opposite to C. opposite at D. opposite for14. A. another B. others C. other D. the others15. A. but B. however C. either D. although二、完形填空Is it difficult for you to get up in the morning? Do you sometimes oversleep? Are you often late for work or school? Yes? Then Hiroyuki Sugiyama of Japan has a (an) __16__ bed for you. Hiroyuki’s bed will get you up in the morning! Here is how it __17__.The bed is made up of an alarm clock. Fist5 the alarm clock rings. You have a few __18__ to wake up. Next, a tape recorder in the bed plays classical music or other pleasant sounds. The tape recorder in Hiroyuki’s bed plays a recording of his girlfriend. She whispers in a sweet voice. “Wake up, darling please.” A few minutes later, a second recording __19__.The sound recording can be loud music or __20__ sounds, Hiroyuki __21__ a recording of his boss shouts, “Wake up immediately, or you’ll be late!”If you don't get up __22__ the second recording, you will be sorry! A mechanical "foot” is in the bed. The mechanical foot kicks you in the head. Then the bed waits a few more minutes, What! You’re still in bed! Slowly the __23__ of the bed rises higher and higher. The foot of the bed goes lower and lower. Finally the bed is vertical (垂直的).You slide off the bed and onto the floor. You are __24__ the bed and awake.Hiroyuki __25__ his bed because he wanted to win a contest. He works for Honda Motor Company. Once every two years Honda has a contest for its 200:000 employees---“All-Honda Idea Contest”.16. A. expensive B. special C. valuable D. comfortable17. A. works B. goes C. happens D. moves18. A. minutes B. hours C. days D. weeks19. A. sends B. turns C. plays D. sounds20. A. pleasant B. interesting C. unpleasant D. funny21. A. knows B. learns C. remembers D. hears22. A. after B. until C. since D. before23. A. end B. middle C. body D. top24. A. inside B. under C. out of D. onto25. A. made B. sold C. bought D. discovered三、阅读理解(A)F. Scott Fitzgerald, bora on September 24, 1896, an American novelist, was once a student of St. Paul Academy, the Newman School and attended Princeton University for a short while. In 1917 he joined the army and was sent to Alabama, where he met his future wife Zelda Sayre. The he had to make some money to impress her.His life with her was full of great happiness, as he wrote in his diary: “My own happiness in the past often approached such joy that I could share it even with the person dearest to me but had to walk it away in quiet streets and take down parts of it in my diary.”This side of paradise, his first novel, was published in 1920. Encouraged by its success, Fitzgerald began to spend more time on his writing. Then he continued with the novel the Beautiful and Damned (1922), a collection of short stories Tales of the Jazz Age (1922), and a play The Vegetable (1923). But his greatest successful novel, The Great Gatsby, published in 1925, which quickly brought him praise from the literary (文学)world. Yet it failed to give him enough money to live. Then, in 1936, he published another collection of short stories All the Sad Young Men.However, Fitzgerald's problems with his wife Zelda affected his siting. During the 1920s he tried to reorder his life; but failed. By 1930, his wife had her first mental breakdown and went to a Swiss hospital. During this period he completed novels Tender Is the Night in 1934. While his wife was in hospital in the United States, he got totally addicted to alcohol (酗酒). Fitzgerald died in 1940, before he could complete the novel The Love of the Last Tycoon.26.How many novels written by Fitzgerald are mentioned in the passage?A.5B. 6C. 7D. 327.Paragraph 2 mainly tells us that .A.Fitzgerald was famous for writing diariesB.Fitzgerald loved his wife deeply and felt happyC.Fitzgerald's wife had a less influence on his writingD.Fitzgerald didn't live happily with his wife so he couldn't share it with others28.Which of the following is the correct order to describe Fitzgerald's share it with othersA.He became addicted to drinking.B.He studied at St. Paul Academy.C.He published the novel This Side of Paradise.D.The Great Gatsby won high praise.E.He tried to reorder his life.F.He joined the army and met Zelda.A. f, c, e, a, b, dB. b, e, a, f, c, dC. f, d, e, c, b, aD. b, f, c, d; e, a29.From the passage we can learn that.A.The Beautiful and Damned was Fitzgerald's first novel.B.The word The Great Gatsby made Fitzgerald rich and famous.C.Fitzgerald succeeded in reordering his life during the 1920s.D.Fitzgerald’s wife broke down more than once.30.The passage is probably followed by an ending paragraph about .A.Fitzgerald struggled with alcoholB. the reasons for Fitzgerald's deathC. comments on Fitzgerald’s literary contributionsD. summary of Fitzgerald’s family life(B)We can make mistakes at any age. Some mistakes we make are about money. But most mistakes are about people. “Did Jerry really care when I broke up with Helen?” “When I got that great job, did Jerry really feel good about as a friend? Or did he en\y my luck?” When we look back, doubts like these can make us feel bad. But when we look back, it’s too late. Why do we go wrong about ourfriends or our enemies? Sometimes what people say hides their real meaning. And if we don't really listen, we miss the feeling behind the words. Suppose someone tells you, “You’re a lucky dog.” Is he really on your side? If he says, “You’re a lucky guy” or “You’re a lucky gal” That’s being friendly. But “lucky dog”? There’s a bit of envy in those words. Maybe he doesn’t see it himself. But bringing in the “dog” bit puts you down a little. What he may be saying is he doesn’t think you deserve you luck.How can you tell the real meaning behind someone's words? One way is to take a good look at the person talking. Do his words fit the way he looks? Dose what he says square with the tone of voice? His posture(体态)?The look m his eyes? Stop and think. Spend some time thinking about the real meaning of what people say to you; and you may save another mistake.31.The question in the first paragraph tell us that the speaker.A.feels happy because his friends were nice to himB.feels he may not have ^read^ his friends1 true feelings correctlyC.thinks it was a mistake to have broken up with his girl friend HelenD.is sorry that his friends let him down32.From the example “You’re a lucky dog”, we can learn that .A.the speaker of the sentence is friendlyB.it means the same as “You’re a lucky guy” or “You’re a lucky gal.”C.sometimes the words used by the speaker give a tip to the feeling behind the wordsD.the word “dog” shouldn’t be used to describe a person33.The passage tries to tell you how to .A.avoid mistakes about money and friendsB.bring the ^dog55 bit into our conversationC.be friendly to other peopleD.avoid mistakes in understanding what people tell you34.What is important in listening to a person?A.To notice his hone, his posture and the look in his eyes.B.To listen to how he pronounces his words.C.To check if his words go well with his manner, his tone of voice and his posture.D.Don't believe what he says.35.If you follow the writer’s advice, you would.A.be able to get the real meaning of people's wordsB.avoid any mistakes while talking with the people who envy youC.not lose real friends who say things that to not please youD.be able to observe people as they are talking to you(C)Last year in the UK at least 45 people died and 900 more were injured in car accidents where drivers were using their mobile phones. Yet many people continue to use them while driving even though it’s dangerous.Research has shown that it is difficult to concentrate on driving and talking at the same time. It can even be more dangerous than driving after drinking too much. A recent study found that when drivers were talking on their mobile phones, their stopping times were 30 percent slower than when they had drunk too much ---- and nearly 50 percent slower than when they were driving normally. It also found that drivers talking on mobile phones were less able to control their cars than drunk drivers.And talking isn’t even the most serious problem. T exting is. Unbelievably, another recent study reported that 22% of adults admitted they had sent a text message while driving at least once in the past month. An average text message takes 90 seconds to write and send. That means for one and a half minutes a driver is looking at their phone's screen and not at the road. The arrival of new smart phones such as the iPhone will only make matters worse as they will allow users to do more things than ever before.Using a mobile phone while driving puts others1 lives at risk. NO matter how well we drive, if another driver is not being professional or careful, we are put in danger by their actions. Such drivers are selfish, careless, and should have their driving licenses(驾照) cancelled.There is no doubt that mobile phones can be fun and are extremely useful, especially when you're in trouble. But there is no need to use them while driving. Just wait until you stop or you will probably get into trouble of your own.36.The underlined word "them” in paragraph 1 refers to .A.phone usersB. mobile phonesC. driversD. cars37.According to the passage, if a driver needs 10 seconds to stop when driving normally, they will need seconds to stop when talking on a mobile phone.A.12B. 13C. 14D. 1538.According to the passage; in what order do the following activities influence driving? Dangerous →More dangerous →Most dangerousA.drinking →talking on phone →textingB.texting →talking on phone →drinkingC.talking on phone →texting →drinkingD.drinking →texting →talking on phone39.Why will new types of mobile phones make the driving problem worse?A.It will take longer to send text messages.B.People will want to talk on their phones more often.C.There will be more things for people to do with their phones.D.People think the new phones are easier and safer to use.40.According to the writer, what should be done to people who use mobile phones when driving?A.They should be put into prison.B.Their cars should be taken away.C.Their phones should be taken from them.D.They should not be allowed to drive any longer.第二节阅读填空Thanksgiving Day is a very special day for people in the United States. They celebrate it on the last Thursday in November. ___46___ In Britain, where this festival is called Harvest Festival, people celebrate it earlier in the year, in September.___47___. In North America and Britain, harvest time for most fruit and crops is in the autumn. In these countries and other Christian places, people give thanks to God on a special day of the year. They thank God for the good things that have happened during the year and for the good harvest they have had; ___48___.A Thanksgiving Day was held every year for a long time, but not always on the same day of theyear, ___49___. In 1863. President Abraham Lincoln changed the date, and said that the last Thursday in November should be Thanksgiving Day.___50___A.Then, in 1789, President George Washington named November 26th as the Day of ThanksgivingB. A harvest is the fruit you take from the trees and the crops you take from the ground.C.Nowadays, North Americans around the world get together with their families on this day to eat good food and have a happy time.D.Canadians also celebrate Thanksgiving Day, but they do it on the second Monday of October.E.People usually take small boxes of fruit, flowers, and vegetables to their churches to show their thanks.四、写作第一节单词拼写51.I feel a little hot. Would you m_________ opening the window?52.Keep quiet please. Don't make any n_________ in the library.53.Can you give me a hand, please? The bookshelf is too h_________ for me to move by myself.54.This kind of flower is very common in our city, and we can see it e_________________ _.55.When a_________ comes, the leaves turn yellow and soon fall.56.There’s a m_________ over there. Let's go and buy some fruit and meat.第二节完成句子57.这个会议很重要,持续了三天。

2016年天河区初中毕业班综合测试(一)数学科参考答案及评分标准 (1)

2016年天河区初中毕业班综合测试(一)数学科参考答案及评分标准 (1)

2016年天河区初中毕业班综合练习(一)(数学)参考答案说明:1、本解答给出了一种解法供参考,如果考生的解法与本解答不同,各题组可根据试题的主要考查内容比照评分标准制订相应的评分细则.2、对于计算题,当考生的解答在某一步出现错误时,如果后续部分的解答未改变该题的内容和难度,可视影响的程度决定给分,但不得超过该部分正确解答应得分数的一半;如果后续部分的解答有较严重的错误,就不再给分.3、解答右端所注分数,表示考生正确做到这一步应得的累加分数. 一、选择题(本题共10小题,每小题3分,共30分)二、填空题(本题共6小题,每小题3分,共18分) 三、解答题(本题有9个小题, 共102分。

解答应写出文字说明、证明过程或演算步骤) 17.(本题满分9分)解: ①②解①得 1≥x -------3分解②得3<x -------6分 ∴原不等式组解集为 31<≤x -------9分18.(本题满分9分)证明:∵AB=AC ,AD 是BC 边上的中线, ∴AD ⊥BC -------3分 又∵BE ⊥AC ,∠ADC=∠BEC=90° -------5分 ∴∠CBE+∠C=∠CAD+∠C=90° ∴∠CBE= ∠CAD -------9分211347(x )x +-≥⎧⎨+<⎩也可以运用相似: ∠C=∠C∴△ADC ∽△BEC∴∠CBE= ∠CAD -------9分19(本题满分10分) 解:原式=1)2)(2(2322+-+∙⎪⎭⎫⎝⎛-+--a a a a a a -------3分 =1)2)(2()2()1(+-+∙-+a a a a a -------4分=2+a -------6分∵3<a ,且a 为正整数 ∴a =1或a =2 -------8分 又∵1,2-≠±≠a a ∴1=a ∴原式=3 -------10分 20(本题满分10分)解:(1)200; ------1分(2)如图:------5分(3)解:设A 类两人为A 1,A 2,B 类两人为B 1,B 2。

2016-2017学年广东省广州十六中七年级(下)期中数学试卷

2016-2017学年广东省广州十六中七年级(下)期中数学试卷

2016-2017学年广东省广州十六中七年级(下)期中数学试卷一、选择题(共10小题,每题3分)1.(3分)下列图形中,不能通过其中一个四边形平移得到的是()A. B.C.D.2.(3分)下列命题中真命题是()A.同位角相等B.两点之间,线段最短C.相等的角是对顶角D.互补的角是邻补角3.(3分)实数(﹣3)2的平方根是()A.3 B.﹣3 C.±3 D.±4.(3分)下列实数:,,,,,1.010010001…,3.14,其中无理数有()A.1个 B.2个 C.3个 D.4个5.(3分)点P(﹣,1)在()A.第一象限B.第二象限C.第三象限D.第四象限6.(3分)小华将平面直角坐标系中的A(﹣4,3)沿着x轴方向向左平移了3个单位得到了B点,则B点的坐标是()A.(﹣7,3)B.(﹣1,3)C.(﹣4,0)D.(﹣4,6)7.(3分)如图,AB∥CD,DA⊥AC,垂足为A,若∠ADC=35°,则∠1的度数为()A.65°B.55°C.45°D.35°8.(3分)小龙和小刚两人玩“打弹珠”游戏,小龙对小刚说:“把你珠子的一半给我,我就有10颗珠子”.小刚却说:“只要把你的给我,我就有10颗”.如果设小刚的弹珠数为x颗,小龙的弹珠数为y颗,则列出的方程组是()A.B.C.D.9.(3分)如果是方程x﹣3y=﹣3的一组解,那么代数式5﹣a+3b的值是()A.8 B.5 C.2 D.010.(3分)如图,AB∥CD,∠ABK的角平分线BE的反向延长线和∠DCK的角平分线CF的反向延长线交于点H,∠K﹣∠H=27°,则∠K=()A.76°B.78°C.80°D.82°二、填空题(共6小题,每题3分)11.(3分)如图,已知AC∥BD,若∠1=35°,则∠2=°.12.(3分)点M(﹣2,3)到x轴的距离是.13.(3分)若x3=27,则x=.14.(3分)已知x、y是二元一次方程组的解,则x+y=.15.(3分)如图,已知△ABC的周长为20cm,现将△ABC沿AB方向平移2cm的周长是cm.至△A′B′C′的位置,连接CC′,则四边形AB′C′C16.(3分)如图,AB∥CD,OE平分∠BOC,OF⊥OE,OP⊥CD,∠ABO=a°.则下列结论:①∠BOE=(180﹣a)°;②OF平分∠BOD;③∠POE=∠BOF;④∠POB=2∠DOF.其中正确结论(填编号).三、解答题(共72分)17.(8分)化简求值(1)﹣﹣(2)|2﹣|+|3﹣|.18.(10分)解二元一次方程组(1)(2).19.(10分)如图,在平面直角坐标系中有三个点A(﹣3,2),B(﹣5,1),C (﹣2,0),P(a,b)是三角形的边AC上一点,三角形ABC经平移后得到三角,点P的对应点为P′(a+4,b+3).形A′B′C′,写出点A′、B′、C′三个点的坐标.(1)画出平移后的三角形A′B′C′的面积.(2)求四边形ACC′A′20.(8分)如图,已知AC⊥AB,ED⊥AB,垂足为A、D,∠CAF=80°.求∠DGF的度数.21.(12分)如图,AP,CP分别平分∠BAC,∠ACD,∠P=90°,设∠BAP=α.(1)用α表示∠ACP;(2)求证:AB∥CD;(3)若AP∥CF,求证:FC平分∠DCE.22.(12分)一家商店进行装修,若请甲、乙两个装修组同时施工,8天可以完成,需付两组费用共3520元,若先请甲组单独做6天,再请乙组单独做12天可以完成,需付费用3480元,问:(1)甲、乙两组工作一天,商店各应付多少钱?(2)已知甲单独完成需12天,乙单独完成需24天,单独请哪个组,商店所需费用最少?(3)若装修完后,商店每天可赢利200元,你认为如何安排施工更有利于商店?请你帮助商店决策.(可用(1)(2)问的条件及结论)23.(12分)如图,以直角三角形AOC的直角顶点O为原点,以OC、OA所在直线为x轴和y轴建立平面直角坐标系,点A(0,a),C(b,0)满足+|b ﹣2|=0.D为线段AC的中点.(1)则A点的坐标为;点C的坐标为.(2)在平面直角坐标系中,以任意两点P(x1,y1)、Q(x2,y2)为端点的线段中点坐标为(,).则D点的坐标为.(3)已知坐标轴上有两动点P、Q同时出发,P点从C点出发沿x轴负方向以1个单位长度每秒的速度匀速移动,Q点从O点出发以2个单位长度每秒的速度沿y轴正方向移动,点Q到达A点整个运动随之结束.设运动时间为t(t>0)秒.问:是否存在这样的t,使S△ODP=S△ODQ,若存在,请求出t的值;若不存在,请说明理由.(4)点F是线段AC上一点,满足∠FOC=∠FCO,点G是第二象限中一点,连OG,使得∠AOG=∠AOF.点E是线段OA上一动点,连CE交OF于点H,当点E 在线段OA上运动的过程中,的值是否会发生变化?若不变,请求出它的值;若变化,请说明理由.2016-2017学年广东省广州十六中七年级(下)期中数学试卷参考答案与试题解析一、选择题(共10小题,每题3分)1.(3分)下列图形中,不能通过其中一个四边形平移得到的是()A. B.C.D.【考点】Q1:生活中的平移现象.【分析】根据平移与旋转的性质得出.【解答】解:A、能通过其中一个四边形平移得到,错误;B、能通过其中一个四边形平移得到,错误;C、能通过其中一个四边形平移得到,错误;D、不能通过其中一个四边形平移得到,需要一个四边形旋转得到,正确.故选:D.【点评】本题考查了图形的平移,图形的平移只改变图形的位置,而不改变图形的形状和大小,学生易混淆图形的平移与旋转或翻转,导致误选.2.(3分)下列命题中真命题是()A.同位角相等B.两点之间,线段最短C.相等的角是对顶角D.互补的角是邻补角【考点】O1:命题与定理.【分析】根据平行线的性质对A进行判断;根据线段最短的公理对B进行判断;根据对顶角的定义对C进行判断;根据邻补角的定义对D进行判断.【解答】解:A、两直线平行,同位角相等,所以A选项错误;B、两点之间,线段最短,所以B选项正确;C、相等的角不一定是对顶角,所以C选项错误;D、有一条边共线且互补的两个角是邻补角,所以D选项错误.故选:B.【点评】本题考查了命题与定理:判断事物的语句叫命题;正确的命题称为真命题,错误的命题称为假命题;经过推理论证的真命题称为定理.3.(3分)实数(﹣3)2的平方根是()A.3 B.﹣3 C.±3 D.±【考点】21:平方根.【分析】根据平方根的定义解答可得.【解答】解:∵(﹣3)2=9,∴实数(﹣3)2的平方根是±3,故选:C.【点评】本题主要考查平方根,熟练掌握平方根的定义是解题的关键.4.(3分)下列实数:,,,,,1.010010001…,3.14,其中无理数有()A.1个 B.2个 C.3个 D.4个【考点】26:无理数.【分析】根据无理数的定义(无理数是指无限不循环小数)逐个判断即可.【解答】解:无理数有,,1.010010001…,共3个,故选:C.【点评】本题考查了无理数,能熟记无理数的定义是解此题的关键,注意:无理数含有①含π的,②开方开不尽的根式,③一些有规律的数.5.(3分)点P(﹣,1)在()A.第一象限B.第二象限C.第三象限D.第四象限【考点】D1:点的坐标.【分析】根据平面直角坐标系中各象限内坐标符号的特点解答即可.【解答】解:∵点P(﹣,1)的横坐标是负数,纵坐标是正数,∴点P在第二象限.故选:B.【点评】解答此题的关键是熟知平面直角坐标系中四个象限的点的坐标的特征:第一象限正正,第二象限负正,第三象限负负,第四象限正负.6.(3分)小华将平面直角坐标系中的A(﹣4,3)沿着x轴方向向左平移了3个单位得到了B点,则B点的坐标是()A.(﹣7,3)B.(﹣1,3)C.(﹣4,0)D.(﹣4,6)【考点】Q3:坐标与图形变化﹣平移.【分析】将点A的横坐标减去3,纵坐标不变即可得到B点的坐标.【解答】解:将平面直角坐标系中的A(﹣4,3)沿着x轴方向向左平移了3个单位得到了B点,则B点的坐标是(﹣4﹣3,3),即(﹣7,3).故选:A.【点评】此题主要考查坐标与图形变化﹣平移.掌握平移中的变化规律:横坐标右移加,左移减;纵坐标上移加,下移减是解题的关键.7.(3分)如图,AB∥CD,DA⊥AC,垂足为A,若∠ADC=35°,则∠1的度数为()A.65°B.55°C.45°D.35°【考点】JA:平行线的性质.【分析】利用已知条件易求∠ACD的度数,再根据两线平行同位角相等即可求出∠1的度数.【解答】解:∵DA⊥AC,垂足为A,∴∠CAD=90°,∵∠ADC=35°,∴∠ACD=55°,∵AB∥CD,∴∠1=∠ACD=55°,故选:B.【点评】本题主要考查了平行线的性质,垂直的定义等知识点,熟记平行线的性质定理是解题关键.8.(3分)小龙和小刚两人玩“打弹珠”游戏,小龙对小刚说:“把你珠子的一半给我,我就有10颗珠子”.小刚却说:“只要把你的给我,我就有10颗”.如果设小刚的弹珠数为x颗,小龙的弹珠数为y颗,则列出的方程组是()A.B.C.D.【考点】99:由实际问题抽象出二元一次方程组.【分析】设小刚的弹珠数为x颗,小龙的弹珠数为y颗,根据题意,列方程组即可.【解答】解:设小刚的弹珠数为x颗,小龙的弹珠数为y颗,由题意得,x+y=10,x+y=10化简得,.故选:A.【点评】本题考查了由实际问题抽象出二元一次方程组,解答本题的关键是读懂题意,设出未知数,找出合适的等量关系,列方程组求解.9.(3分)如果是方程x﹣3y=﹣3的一组解,那么代数式5﹣a+3b的值是()A.8 B.5 C.2 D.0【考点】92:二元一次方程的解.【分析】把x=a,y=b代入方程,再根据5﹣a+3b=5﹣(a﹣3b),然后代入求值即可.【解答】解:把x=a,y=b代入方程,可得:a﹣3b=﹣3,所以5﹣a+3b=5﹣(a﹣3b)=5+3=8,故选:A.【点评】本题考查了代数式的求值,正确对代数式变形,利用添括号法则是关键.10.(3分)如图,AB∥CD,∠ABK的角平分线BE的反向延长线和∠DCK的角平分线CF的反向延长线交于点H,∠K﹣∠H=27°,则∠K=()A.76°B.78°C.80°D.82°【考点】JA:平行线的性质.【分析】分别过K、H作AB的平行线MN和RS,根据平行线的性质和角平分线的性质可用∠ABK和∠DCK分别表示出∠H和∠K,从而可找到∠H和∠K的关系,结合条件可求得∠K.【解答】解:如图,分别过K、H作AB的平行线MN和RS,∵AB∥CD,∴AB∥CD∥RS∥MN,∴∠RHB=∠ABE=∠ABK,∠SHC=∠DCF=∠DCK,∠NKB+∠ABK=∠MKC+∠DCK=180°,∴∠BHC=180°﹣∠RHB﹣∠SHC=180°﹣(∠ABK+∠DCK),∠BKC=180°﹣∠NKB﹣∠MKC=180°﹣(180°﹣∠ABK)﹣(180°﹣∠DCK)=∠ABK+∠DCK﹣180°,∴∠BKC=360°﹣2∠BHC﹣180°=180°﹣2∠BHC,又∠BKC﹣∠BHC=27°,∴∠BHC=∠BKC﹣27°,∴∠BKC=180°﹣2(∠BKC﹣27°),∴∠BKC=78°,故选:B.【点评】本题主要考查平行线的性质,掌握平行线的判定和性质是解题的关键,即①两直线平行?同位角相等,②两直线平行?内错角相等,③两直线平行?同旁内角互补,④a∥b,b∥c?a∥c.二、填空题(共6小题,每题3分)11.(3分)如图,已知AC∥BD,若∠1=35°,则∠2=145°.【考点】JA:平行线的性质.【分析】首先根据两直线平行同位角相等可得∠1=∠3=35°,再根据邻补角互补计算出∠2的度数.【解答】解:如图,∵AC∥BD,∴∠1=∠3,∵∠1=35°,∴∠3=35°,∵∠1+∠2=180°,∴∠2=180°﹣∠3=180°﹣35°=145°,故答案为:145.【点评】此题主要考查了平行线的性质,关键是掌握平行线的性质:两直线平行,同位角相等.12.(3分)点M(﹣2,3)到x轴的距离是3.【考点】D1:点的坐标.【分析】根据点的坐标与其到x轴的距离的关系进行解答.【解答】解:M(﹣2,3)到x轴的距离是其纵坐标的绝对值,即为3.故填3.【点评】解答本题的关键是明确点的坐标与其到x轴的距离的关系.13.(3分)若x3=27,则x=3.【考点】24:立方根.【分析】根据立方根的定义解简单的高次方程.【解答】解:∵x3=27,∴x==3,故答案为:3【点评】此题是立方根,主要是用立方根的定义解简单的方程,解本题的关键是理解立方根的定义.14.(3分)已知x、y是二元一次方程组的解,则x+y=0.【考点】97:二元一次方程组的解.【分析】解方程组求得x、y的值,再把x与y的值代入x+y进行计算即可.【解答】解:,由①得,y=2x+3③,把③代入②得,x+8x+12=3,解得x=﹣1把x=﹣1代入③得y=1,∴方程组的解为,∴x+y=﹣1+1=0.故答案为0,【点评】本题考查了二元一次方程组的解和解二元一次方程组:同时满足二元一次方程组中各方程的未知数的值叫二元一次方程组的解;利用加减消元或代入消元解二元一次方程组.15.(3分)如图,已知△ABC的周长为20cm,现将△ABC沿AB方向平移2cm的周长是24cm.的位置,连接CC′,则四边形AB′C′C至△A′B′C′【考点】Q2:平移的性质.【分析】根据平移的性质,经过平移,对应点所连的线段相等,对应线段相等,找出对应线段和对应点所连的线段,结合四边形的周长公式求解即可.【解答】解:根据题意,得A的对应点为A′,B的对应点为B′,C的对应点为C′,,,BB′=CC′所以BC=B′C′的周长=CA+AB+BB′+B′C′+C′C=△ABC的周长+2BB′=20+4=24cm.∴四边形AB′C′C故答案为:24.【点评】本题主要运用的知识点是:经过平移,对应点所连的线段平行且相等,对应线段平行且相等.16.(3分)如图,AB∥CD,OE平分∠BOC,OF⊥OE,OP⊥CD,∠ABO=a°.则下列结论:①∠BOE=(180﹣a)°;②OF平分∠BOD;③∠POE=∠BOF;④∠POB=2∠DOF.其中正确结论①②③(填编号).【考点】JA:平行线的性质.【分析】由于AB∥CD,则∠ABO=∠BOD=40°,利用平角等于得到∠BOC=(180﹣a)°,再根据角平分线定义得到∠BOE=(180﹣a)°;利用OF⊥OE,可计算出∠BOF=a°,则∠BOF=∠BOD,即OF平分∠BOD;利用OP⊥CD,可计算出∠POE=a°,则∠POE=∠BOF;根据∠POB=90°﹣a°,∠DOF=a°,可知④不正确.【解答】解:①∵AB∥CD,∴∠BOD=∠ABO=a°,∴∠COB=180°﹣a°=(180﹣a)°,又∵OE平分∠BOC,∴∠BOE=∠COB=(180﹣a)°.故①正确;②∵OF⊥OE,∴∠EOF=90°,∴∠BOF=90°﹣(180﹣a)°=a°,∴∠BOF=∠BOD,∴OF平分∠BOD所以②正确;③∵OP⊥CD,∴∠COP=90°,∴∠POE=90°﹣∠EOC=a°,∴∠POE=∠BOF;所以③正确;∴∠POB=90°﹣a°,而∠DOF=a°,所以④错误.【点评】本题考查了平行线的性质:两直线平行,内错角相等;两直线平行,同旁内角互补;两直线平行,同位角相等.三、解答题(共72分)17.(8分)化简求值(1)﹣﹣(2)|2﹣|+|3﹣|.【考点】2C:实数的运算.【分析】(1)直接利用算术平方根以及立方根的性质分别化简得出答案;(2)直接利用绝对值的性质化简得出答案.【解答】解:(1)﹣﹣=3﹣+2=2.5;(2)|2﹣|+|3﹣|=﹣2+3﹣=1.【点评】此题主要考查了实数运算,正确化简各数是解题关键.18.(10分)解二元一次方程组(1)(2).【考点】98:解二元一次方程组.【分析】(1)(2)用加减消元法解方程组即可.【解答】解:(1)①+②得到,3x=15,x=5,把x=5代入①得到,y=﹣1,∴.(2)①﹣②×2得到,﹣7x=7,x=﹣1把x=﹣1代入②得到y=3,∴【点评】本题考查二元一次方程组的解法,解题的关键是熟练掌握加减消元法、代入消元法解方程组,属于中考常考题型.19.(10分)如图,在平面直角坐标系中有三个点A(﹣3,2),B(﹣5,1),C (﹣2,0),P(a,b)是三角形的边AC上一点,三角形ABC经平移后得到三角形A′B′C′,点P的对应点为P′(a+4,b+3).,写出点A′、B′、C′三个点的坐标.(1)画出平移后的三角形A′B′C′(2)求四边形ACC′A′的面积.【考点】Q4:作图﹣平移变换.【分析】(1)直接利用平移的性质得出对应点位置进而得出答案;所在矩形面积减去周围三角形面积进而得出答案.(2)利用四边形ACC′A′,即为所求,A′(1,5)、B′(﹣1,4)、C′【解答】解:(1)如图所示:△A′B′C′(2,3);的面积为:5×5﹣×3×4﹣×1×2﹣×3×4﹣×1×(2)四边形ACC′A′2=11.【点评】此题主要考查了平移变换以及四边形面积求法,正确得出对应点位置是解题关键.20.(8分)如图,已知AC⊥AB,ED⊥AB,垂足为A、D,∠CAF=80°.求∠DGF的度数.【考点】J3:垂线.【分析】先根据平行线的性质求出∠EGF,再根据邻补角的性质即可解决问题.【解答】解:∵AC⊥AB,ED⊥AB,∴AC∥DE,∴∠GAC=∠EGF=80°,∴∠DGF=180°﹣∠EGF=180°﹣80°=100°.【点评】本题考查垂线的性质、平行线的性质、邻补角的性质,解题的关键是灵活应用这些知识解决问题,属于中考常考题型.21.(12分)如图,AP,CP分别平分∠BAC,∠ACD,∠P=90°,设∠BAP=α.(1)用α表示∠ACP;(2)求证:AB∥CD;(3)若AP∥CF,求证:FC平分∠DCE.【考点】JB:平行线的判定与性质.【分析】(1)由角平分线的定义可得∠PAC=α,在Rt△PAC中根据直角三角形的性质可求得∠ACP;(2)结合(1)可求得∠ACD,可证明∠ACD+∠BAC=180°,可证明AB∥CD;(3)由平行线的性质可得∠ECF=∠CAP,∠ECD=∠CAB,结合条件可证得∠ECF=∠FCD,可证得结论.【解答】(1)解:∵AP平分∠BAC,∴∠CAP=∠BAP=α,∵∠P=90°,∴∠ACP=90°﹣∠CAP=90°﹣α;(2)证明:由(1)可知∠ACP=90°﹣α,∵CP平分∠ACD,∴∠ACD=2∠ACP=180°﹣2α,又∠BAC=2∠BAP=2α,∴∠ACD+∠BAC=180°,∴AB∥CD;(3)证明:∵AP∥CF,∴∠ECF=∠CAP=α,由(2)可知AB∥CD,∴∠ECD=∠CAB=2α,∴∠DCF=∠ECD﹣∠ECF=α,∴∠ECF=∠DCF,∴CF平分∠DCE.【点评】本题主要考查平行线的判定和性质,掌握平行线的判定和性质是解题的关键,即①两直线平行?同位角相等,②两直线平行?内错角相等,③两直线平行?同旁内角互补,④a∥b,b∥c?a∥c.22.(12分)一家商店进行装修,若请甲、乙两个装修组同时施工,8天可以完成,需付两组费用共3520元,若先请甲组单独做6天,再请乙组单独做12天可以完成,需付费用3480元,问:(1)甲、乙两组工作一天,商店各应付多少钱?(2)已知甲单独完成需12天,乙单独完成需24天,单独请哪个组,商店所需费用最少?(3)若装修完后,商店每天可赢利200元,你认为如何安排施工更有利于商店?请你帮助商店决策.(可用(1)(2)问的条件及结论)【考点】9A:二元一次方程组的应用.【分析】(1)本题的等量关系是:甲做8天需要的费用+乙作8天需要的费用=3520元.甲组6天需付的费用+乙做12天需付的费用=3480元,由此可得出方程组求出解.(2)根据(1)得出的甲乙每工作一天,商店需付的费用,然后分别计算出甲单独做12天需要的费用,乙单独做24天需要的费用,让两者进行比较即可.(3)本题可将每种施工方法的施工费加上施工期间商店损失的费用,然后将不同方案计算出的结果进行比较,损失最少的方案就是最有利商店的方案.【解答】解:(1)设:甲组工作一天商店应付x元,乙组工作一天商店付y元.由题意得解得答:甲、乙两组工作一天,商店各应付300元和140元.(2)单独请甲组需要的费用:300×12=3600元.单独请乙组需要的费用:24×140=3360元.答:单独请乙组需要的费用少.(3)请两组同时装修,理由:甲单独做,需费用3600元,少赢利200×12=2400元,相当于损失6000元;乙单独做,需费用3360元,少赢利200×24=4800元,相当于损失8160元;甲乙合作,需费用3520元,少赢利200×8=1600元,相当于损失5120元;因为5120<6000<8160,所以甲乙合作损失费用最少.答:甲乙合作施工更有利于商店.【点评】解题关键是要读懂题目的意思,根据题目给出的条件,找出合适的等量关系:甲做8天需要的费用+乙作8天需要的费用=3520元.列出方程组,再求解.23.(12分)如图,以直角三角形AOC的直角顶点O为原点,以OC、OA所在直线为x轴和y轴建立平面直角坐标系,点A(0,a),C(b,0)满足+|b ﹣2|=0.D为线段AC的中点.(1)则A点的坐标为(0,4);点C的坐标为(2,0).(2)在平面直角坐标系中,以任意两点P(x1,y1)、Q(x2,y2)为端点的线段中点坐标为(,).则D点的坐标为(1,2).(3)已知坐标轴上有两动点P、Q同时出发,P点从C点出发沿x轴负方向以1个单位长度每秒的速度匀速移动,Q点从O点出发以2个单位长度每秒的速度沿y轴正方向移动,点Q到达A点整个运动随之结束.设运动时间为t(t>0)秒.问:是否存在这样的t,使S△ODP=S△ODQ,若存在,请求出t的值;若不存在,请说明理由.(4)点F是线段AC上一点,满足∠FOC=∠FCO,点G是第二象限中一点,连OG,使得∠AOG=∠AOF.点E是线段OA上一动点,连CE交OF于点H,当点E 在线段OA上运动的过程中,的值是否会发生变化?若不变,请求出它的值;若变化,请说明理由.【考点】KY:三角形综合题.【分析】(1)根据绝对值和算术平方根的非负性,求得a,b的值即可;(2)根据中点坐标公式进行解答即可;(3)先得出CP=t,OP=2﹣t,OQ=2t,AQ=4﹣2t,再根据S△ODP=S△ODQ,列出关于t的方程,求得t的值即可;(4)过H点作AC的平行线,交x轴于P,先判定OG∥AC,再根据角的和差关系以及平行线的性质,得出∠PHO=∠GOF=∠1+∠2,∠OHC=∠OHP+∠PHC=∠GOF+∠4=∠1+∠2+∠4,最后代入进行计算即可.【解答】解:(1)∵(a﹣2b)2+|b﹣2|=0,∴a﹣2b=0,b﹣2=0,解得a=4,b=2,∴A(0,4),C(2,0);故答案为(0,4),(2,0).(2)∵A(0,4),C(2,0),D为线段AC的中点,∴D(,),即D(1,2).故答案是:(1,2).(3)如图1中,由条件可知:P点从C点运动到O点时间为2秒,Q点从O点运动到A点时间为2秒,∴0<t≤2时,点Q在线段AO上,即CP=t,OP=2﹣t,OQ=2t,AQ=4﹣2t,∴S△DOP=OP?y D=(2﹣t)×2=2﹣t,S△DOQ=OQ?x D=×2t×1=t,∵S△ODP=S△ODQ,∴2﹣t=t,∴t=1;(4)的值不变,其值为2.理由如下:如图2中,∵∠2+∠3=90°,又∵∠1=∠2,∠3=∠FCO,∴∠GOC+∠ACO=180°,∴OG∥AC,∴∠1=∠CAO,∴∠OEC=∠CAO+∠4=∠1+∠4,如图,过H点作AC的平行线,交x轴于P,则∠4=∠PHC,PH∥OG,∴∠PHO=∠GOF=∠1+∠2,∴∠OHC=∠OHP+∠PHC=∠GOF+∠4=∠1+∠2+∠4,∴===2.【点评】本题考查三角形综合题、非负数的性质、三角形的面积、平行线的性质等知识,解题的关键是学会添加常用辅助线,学会用转化的思想思考问题,属于中考压轴题.。

2016年广东省广州市白云区中考数学一模试卷解析版

2016年广东省广州市白云区中考数学一模试卷解析版

2016年广东省广州市白云区中考数学一模试卷一、选择题(本大题共10小题,每小题3分,满分30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•- 0.5的相反数是()A • 0.5B •- 0.5 C•- 2 D . 22.已知点C是线段AB上的一点,不能确定点C是AB中点的条件是()A • AC=CB B • AC=」・ABC • AB=2BCD • AC +CB=AB3 •下列各组的两项是同类项的为()A • 3m2n2与-m2n3B . — xy 与2yxC . 53与a3D . 3x2y2与4x2z2O,若/ AOD=134 °则/ AOC的度数为(o5. 一个正方形的面积为2,则它的边长是(—)A . 4B . ±]打C . -■/D .二6. 为了了解一批电视机的使用寿命,从中抽取100台电视机进行试验,这个问题的样本是()A. 这批电视机B .这批电视机的使用寿命C.抽取的100台电视机的使用寿命D . 100 台7. 计算(-2x+1)(- 3x2)的结果为()A . 6x3+1B . 6x3- 3C . 6x3- 3x2D . 6x3+3x2&若一个多边形的每个外角都等于45°则它是()A .六边形B .八边形C.九边形D .十二边形9. 如图,正比例函数y仁k1x和反比例函数丫2=崔■的图象都经过点A (2, - 1),若y1 >y2,A . - 1v x v 0B . x >2C . - 2v x v 0 或x> 2D . x v—2 或0v x v 210.如图,△ABC 周长为36cm,把其边AC对折,使点C、A重合,折痕交BC边于点D, 交AC边于点E,连结AD,若AE=6cm,则△ ABD的周长是( )二、填空题(本大题共6小题,每小题3分,满分18分)11. D、E、F分别是△ ABC各边的中点.若△ ABC的周长是12cm,则△ DEF的周长是_____ cm.12. 平面直角坐标系下有序数对 ___________________ (2x - y,x+y)表示的点为(5, 4),则x= . y= _____________________________________14•直线y=kx+b中,k v 0, b> 0,则此直线经过第 __________ 象限.15•如果菱形两邻角之比为 1 : 2,较短的对角线长为8,则其周长为________16.在平面直角坐标系中,Rt△ OAB的顶点A的坐标为品1)|,若将△ OAB绕O点,逆时针旋转60 °后,B点到达B点,则点B的坐标是_________ .kl rXi _____________ LO B三、解答题(本大题共9小题,满分102分•解答应写出文字说明、证明过程或演算步骤)17•解不等式组19•如图是平面直角坐标系及其中的一条直线,该直线还经过点 C ( 3,- 10).(1 )求这条直线的解析式;(2)若该直线分别与x轴、y轴交于A、B两点,点P在x轴上,且S^PAB=6S△ OAB,求点P的坐的边BC、AD上的两点,/ AEB= / FCB .求证:BE=DF .标.20. 图①是某手机生产厂第一季度三个月产量统计图,图② 是这三个月的产量与第一季度总产量的比例分布统计图,统计员在制作图①、图②时漏填了部分数据.(1)该厂二月份生产的手机产量占第一季度的比例为________ %;(2)求该厂三月份生产手机的产量;(3)请求出图②中一月份圆心角的度数.21. 在一个不透明的袋子中装有三张分别标有1、2、3数字的卡片(卡片除数字外完全相同)(1)从袋中任意抽取一张卡片,则抽出的是偶数的概率为_________ ;(2)从袋中任意抽取二张卡片,求被抽取的两张卡片构成两位数是奇数的概率.22. 我国水资源比较缺乏,人均水量约为世界人均水量的四分之一,其中西北地区缺水尤为严重.一村民为了蓄水,他把一块矩形白铁皮四个角各切去一个同样大小的小正方形后制作一个无盖水箱用于接雨水.已知白铁皮的长为280cm,宽为160cm (如图).(1)若水箱的底面积为16000cm2,请求出切去的小正方形边长;(2 )对(1)中的水箱,若盛满水,这时水量是多少升?(注:1升水=1000cm3水)23. 如图1,延长O O的直径AB至点C,使得BC=H A B,点P是O O上半部分的一个动点(点P不与A、B重合),连结OP, CP.(1) / C的最大度数为______ ;(2)当0 O的半径为3时,△ OPC的面积有没有最大值?若有,说明原因并求出最大值;若没有,请说明理由;(3) 如图2,延长PO 交O O 于点D ,连结DB ,当CP=DB 时,求证:CP 是O O 的切线.24. 已知,如图,抛物线 y= - x 1 2+ax+b 与x 轴从左至右交于 A 、B 两点,与y 轴正半轴交于 点 C .设/ OCB= a, / OCA= 3,且 tan a-tan 3=2 , OC 2=OA?OB .(1 )△ ABC 是否为直角三角形?若是,请给出证明;若不是,请说明理由; (2) 求抛物线的解析式;(3) 若抛物线的顶点为 P ,求四边形ABPC 的面积.1 用尺规作出△ BCD 的外接圆(保留作图痕迹,可不写作法) 2求/ A 的度数;且/ ADB=60 ,AB BCD 外接圆的切点D 在AC 上,2016年广东省广州市白云区中考数学一模试卷参考答案与试题解析一、选择题(本大题共10小题,每小题3分,满分30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•- 0.5的相反数是()A • 0.5B •- 0.5 C•- 2 D . 2【考点】相反数.【分析】根据只有符号不同的两个数互为相反数,可得答案.【解答】解:-0.5的相反数是0.5,故选:A •2•已知点C是线段AB上的一点,不能确定点C是AB中点的条件是()A • AC=CB B • AC=「|A BC • AB=2BCD • AC +CB=AB【考点】两点间的距离•【分析】根据线段中点的定义对每一项分别进行分析,即可得出答案•【解答】解:A、若AC=CB,则C是线段AB中点;B、若AC=f*B,贝U C是线段AB中点;C、若AB=2BC,贝U C是线段AB中点;D、A C+BC=AB , C可是线段AB是任意一点,则不能确定C是AB中点的条件是D •故选D •3 •下列各组的两项是同类项的为()A • 3m2n2与-m2n3B .丄xy 与2yxC • 53与a3D . 3x2y2与4x2z2【考点】同类项•【分析】依据同类项的定义回答即可•【解答】解:A、3m2n2与-m2n3字母n的指数不同不是同类项,故A错误;B、R y与2yx是同类项,故B正确;C、53与a3所含字母不同,不是同类项,故C错误;D、3x2y2与4x2z2所含的字母不同,不是同类项,故D错误•故选:B •O,若/ AOD=134 °则/ AOC的度数为(A. 134°B. 144°C. 46°D. 32°【考点】对顶角、邻补角.【分析】根据邻补角之和等于180°进行计算即可.【解答】解:/ AOD +/ AOC=180 °,•••/ AOC=180 °- 134 °46 °故选:C.5. 一个正方形的面积为2,则它的边长是(—)A. 4B.±}打C.-牡D. pj【考点】算术平方根. ——【分析】依据算术平方根的定义和性质求解即可.【解答】解:设它的边长为x,则x2=2,所以x= ~.所以它的边长是E3-故选:D.6. 为了了解一批电视机的使用寿命,从中抽取100台电视机进行试验,这个问题的样本是()A .这批电视机B. 这批电视机的使用寿命C. 抽取的100台电视机的使用寿命D. 100 台【考点】总体、个体、样本、样本容量.【分析】本题考查的是确定总体.解此类题需要注意考查对象实际应是表示事物某一特征的数据,而非考查的事物. ”.我们在区分总体、个体、样本、样本容量这四个概念时,首先找出考查的对象,从而找出总体、个体,再根据被收集数据的这一部分对象找出样本.【解答】解:本题考查的对象是了解一批电视机的使用寿命,故样本是所抽取的100台电视机的使用寿命.故选:C.7. 计算(-2x+1)(- 3x2)的结果为()A . 6x3+1B . 6x3- 3C . 6x3- 3x2D . 6x3+3x2【考点】单项式乘多项式.【分析】依据单项式乘多项式法则进行计算即可.【解答】解:原式=6x3- 3x2.故选:C .&若一个多边形的每个外角都等于45°则它是()A .六边形B .八边形C.九边形D .十二边形【考点】多边形内角与外角.【分析】因为多边形的外角和是360°正多边形的每个外角都相等,且一个外角的度数为45°由此即可求出答案.【解答】解:360十45=8,则正多边形的边数为8,故选B .9. 如图,正比例函数y仁k i x和反比例函数y2=—L的图象都经过点A (2, - 1),若y i >y2,A . - 1v x v 0 B. x >2 C . - 2v x v 0 或x> 2 D . x v—2 或O v x v 2【考点】反比例函数与一次函数的交点问题.【分析】根据对称性先确定它们的交点坐标,然后根据一次函数图象在反比例函数图象的上方,由此即可解决问题.【解答】解:如图,•••点A坐标(2,—1),又•••正比例函数y i=k i x和反比例函数y2=丄都是关于原点对称,•••它们的交点A、B关于原点对称,•••点B 坐标(-2, 1),•由图象可知,y1> y2时,x v- 2,或O v x v 2. 故选D .10. 如图,△ ABC周长为36cm,把其边AC对折,使点C、A重合,折痕交BC边于点D, 交AC边于点E,连结AD,若AE=6cm,则△ ABD的周长是()A . 24cm B. 26cm C. 28cm D. 30cm【考点】翻折变换(折叠问题).【分析】根据翻折变换的性质可得 AE=EC , AD=CD ,然后求出△ ABD 的周长=AB+BC ,代 入数据计算即可得解.【解答】 解:•••△ ABC 的边AC 对折顶点C 和点A 重合, ••• AE=EC , AD=CD ,•••△ ABD的周长=AB+BD+AD=AB +BD +CD=AB +BC , ■/ AE=6cm ,••• AC=AE +EC=6+6=12, •/△ ABC 的周长为 36cm , ••• AB +BC=36 - 12=24cm , • △ ABD 的周长是24cm . 故选A .、填空题(本大题共 6小题,每小题3分,满分18 分)11. D 、E 、F 分别是△ ABC 各边的中点.若△ ABC 的周长是12cm ,则△ DEF 的周长是_6 cm . 【考点】三角形中位线定理.【分析】由于D 、E 分别是AB 、BC 的中点,贝U DE 是厶ABC 的中位线,那么【解答】解:如图所示,••• D 、E 分别是AB 、BC 的中点, • DE 是厶ABC 的中位线, • DE^AC ,12.平面直角坐标系下有序数对(2x - y , x+y )表示的点为(5, 4),则x= 3 . y= 1【考点】点的坐标.【解答】解:由题意得:同理有EF=B , DF=£BC ,于是易求△ DEF 的周长.B , DF= ^BC ,I•••△ DEF 的周长=丄(AC+BC+AB )=同理有EF=X 12=6cm .【分析】 根据题意可得方程组2K -芦g ,解方程组可得答案.故答案为:14. 直线y=kx+b 中,k v 0, b> 0,则此直线经过第一、二、四 象限.【考点】一次函数图象与系数的关系.【分析】根据一次函数图象与系数的关系进行判断. 【解答】解:T k v 0, b > 0,•••直线y=kx+b 经过第一、二、四象限. 故答案为:一、二、四.15. 如果菱形两邻角之比为 1 : 2,较短的对角线长为 8,则其周长为 32 . 【考点】菱形的性质.【分析】根据菱形的性质及已知可求得厶 ADB 是等边三角形,从而可得到菱形的边长,进 而可求出其周长.••• AB // CD , •••/ A + Z ADC=180 °•••/ A : Z ADC=1 : 2, • Z A=60 ° Z ADC=120 °•/ AD=AB ,•••△ ADB 为等边三角形,• AD=BD=8 ,•菱形的周长=4 X 8=32, 故答案为32.【考点】约分. 【分析】首先把分子分母分解因式,再约去分子分母的公因式即可. 解:原式=【解答】 解:•••四边形 解得513.化简 ABCD16.在平面直角坐标系中, Rt △ OAB 的顶点A 的坐标为({乳1),若将△ OAB 绕0点,逆时针旋转60。

2016年广东广州越秀区七中一模数学试卷答案

2016年广东广州越秀区七中一模数学试卷答案

j i ao D.D.2D.第四象限D.4π的位置关系是 .cmj i ao s hi .解集在数轴上表示如下:如图,已知矩形的周长为,在边上的点处.试求的长..ABCD 20cm E F AE AE =4cmc om20/03王老师一共调查了多少名同学./03为了共同进步,王老师想从被调查的类和类学生中各随机选取一位同学进行“一帮一”互助学习,请用列表A D 教师版 答案版j i ao s hi .i zh i k an j i ao sh i.i zh i ka 综合应用:在你所做的图中..答 案解 析,,求的面积.答 案解 析如图所示:如图所示:证明见解析.由题意得:∵,∴∴∵,∴,∴,∴..∵,,∴,,∴∴,∴∴,∴AE ⋅AB =AD 2OD ⊥AC ∠EDB =∠ADE +∠EDO =90∠BDO +∠EDO =90∠A =∠A △AED ∽△ADB =AE AD ADABAE ⋅AB =AD 22AE =1△BCD 92AD =2AE =1AE AB =4BE =3OD =OE =OB =32△ADO ∽△ABC AD :OD =AB :BC BC =CD =3=2=2S △BCD S △BOC 如图,在直角坐标系中,点为函数轴的平行线分别交轴,于xOy P y =14y x l有无其它公共点?并说明理由.,=+1=PQ +1)14m 22−−−−−−−−−−14m 2编辑j i ao sh i .i zh ik an g.co m2018/12/03平移到如图所示位置时,猜想与的数量关系,并说明理由.为,和重复部分面积为,请写出与的函数关系式,以及自变量的取值,.∵,∴,又∵,是斜边上的中线,∴,即,∴,∴,∴,同理:.又∵,∴,∴.().∵在中,,,∴由勾股定理,得,即,又∵,∴,∴,在中,到的距离就是的边上的高,为,设的边上的高为,由探究,得,∴,即,又∵,11212223E D 1F D 2E =F D 1D 2//C 1D 1C 2D 2∠=∠AF C 1D 2∠ACB =90∘CD DC =DA =DB ==B =A C 1D 1C 2D 2D 2D 1∠=∠A C 1∠AF =∠A D 2A =F D 2D 2B =E D 1D 1A =B D 1D 2A =B D 2D 1E =F D 1D 2D 2D 1x △AC 1D 1△BC 2D 2y y x y =−+x 1825x 22450⩽x ⩽5Rt △ABC AC =8BC =6AB =10A =B ===5D 1D 2C 1D 1C 2D 2=x D 2D 1E =B =F =A =5−x D 1D 1D 2D 2F =E =x C 2C 1△BC 2D 2C 2BD 2△ABC AB 245△BED 1BD 1h △B ∽△BE C 2D 2D 1=h 2455−x5h =24(5−x )25=×B ×h =S △BE D 112D 11225(5−x )2∠+∠=90C 1C 2∘。

2016年广州市第七中学中考一模语文试题

2016年越秀区第七中学中考一模试题第一部分积累与运用(共35分)一、(6小题,20分)1.下列词语中,每对加点字读音都不相同...的一组是()(3分)A.稽.首/祈.祷告罄./磐.石叱咤./姹.紫嫣红B.作揖./通缉.诘.问/拮.据绯.红/受益匪.浅C.伫.立/贮.存驰骋./聘.任默契./锲.而不舍D.剽.悍/漂.泊粗犷./旷.野炽.痛/炙.手可热2.下列词语中,没有..错别字的一项是()(3分)A.好高骛远相形见绌敝帚自珍莫明奇妙B.不可质疑按步就班呕心沥血痛心疾首C.前倨后恭断璧残垣妇孺皆知险象迭生D.猝然长逝中流砥柱高瞻远瞩莫衷一是3.下列选项中,加点词语运用正确的一项是()(3分)A.今年的元宵晚会上,他的一身衣服很不合身,真是捉襟见肘....。

B.一些不法商人为了牟取暴利制造假冒商品,其手段已经到了令人叹为观止....的地步。

C.物理学家钱伯初学识渊博,虚怀若谷....,贡献卓越,深得业界人士的广泛赞誉。

D.我,一个芸芸众生....,虽没有显赫的家境,但我有一颗不服输的心。

4.下列句子中,没有语病的一项是()(3分)A.东山之所以得名,缘于明朝的韦公公,一方面烧香拜佛,一方面又欺负民众,在东边的山岗上建起东山寺(永泰禅寺),还给自己立了个像。

B.饮凉茶是广州人常年的一个生活习惯,以此来降低夏季人体内的暑气,或冬日干燥引起的喉咙疼痛等疾患。

C.粤剧是我国南方影响非常大的一个剧种,也是广东省地方戏曲剧种之一,由于它产生于广东,所以被称为粤剧。

D.广州是国务院颁布的全国第一批历史文化名城之一,许多名胜古迹如南越王墓、光孝寺、镇海楼、六榕寺等,都是广州历史文化名城的见证。

5.依照划线句,根据初中阶段学过的文章,在横线上补写一句话,使之构成排比句(4分)我喜欢旅行,更喜欢在别人的思想中旅行。

我想和刘禹锡一起重回陋室,想与范仲淹一起携手登临岳阳楼,①_____________________________;我想追随鲁迅先生去欣赏那蓬勃奋飞的北国的雪,②______________________ ________;想跟琦君女士去品尝那地道纯正的家乡的春酒......6.阅读下面三幅图,联系第二幅图的文字,给另两幅图配上文字,要求前后内容相关,逻辑严密。

2016年广州市第七中学中考一模英语试题

2016年广州市第七中学中考一模英语试题(2016-06-02 17:18:46)转载▼标签:分类:广州各区中考模拟试题2016广州七中中考英语2016年广州初三英语2016广州中考年七中初三综合测试题2016一、语法选择(共15小题,每小题115分,满分分s Gansu Province 1 the first day this year. Sandstorms hit northwestern Chin') was less than 100 meters in Minqin, ), visibility (According to an expert(专家能见because of the sand. When visibility is less than 1 kilometer, it 2 a sandstorm. Asandstorm is exactly 3 it sounds like: a very strong windstorm 4 carries clouds ofsand or dust, and greatly reduces visibility. They are also known 5 dust storms.The sandstorm in Minqin 6 up dust in neighboring towns, such as Baiyin, Wuwei, Jinchang and Lanzhou, the capital city of Gansu Province. Dust-laden winds also swept) at 7 a.m., downtown areas at 9 a.m.s suburbsinto Beijing. It first 7 the capita郊区The winds, which died down during the night, brought the temperature downsto 8 below zero and many flights put off their planned time from the cityairport.It is quite 9 for sandstorms, which usually 10 between March and June, to happen in winter, when the earth is frozen. The sandstorms in Gansu and InnerMongolia do not necessarily mean there 11 more of them in the coming spring thanlast year, but Beijing is taking it very 12 . It is reported that Beijing will 13 6 billion yuan (US 725 million) in preventing sandstorms in the capital and has already 14 a special team to make sure what causes 15 .B. onC. forD. from1. A. inD. was called C. is called 2. A. calls B. calledD. where B. how 3. A. what C. whenD. that C. what 4. A. who B. whenD. with B. as C. like 5. A. forC. blowsD. blew B. is blowing 6. A. blowingD. gets to B. got C. reached 7. A. arrivedD. as low as 8. A. so low as B. so high as C. as high asD. unusually9. A. usual B. usually C. unusual10. A. take a place B. takes place C. taking place D. take placeB. will beC. will haveD. is11. A. areD. more serious 12. A. seriously B. serious C. seriousnessD. cost13. A. take B. pay C. spendC. setted upD. setting up 14. A. been set up B. set upD. themB. itC. they 15. A. this1.5分,满分分)15二、完形填空(共10小题,每小题Why do I want to go to college? No one has ever asked me 16 a question. Butmany times I have asked myself. I have 17 a whole variety of reasons. Themost 18 reason is that I want to be a 19 man.) to高级于Many things make human beings different or better than or even superior( animals.One of the most important things is 20 . If I fail to receive higher education, my education will not 21 . As I want to be a fully 22 man, I must get a well-rounded education, which good colleges and universities are supposed to 23 . I know one canget educated in many ways, but colleges and universities are 24 the best places toteach me how to educate myself. Only when I am well-educated, will I be a better humanbeing and be able to better fit into 25 .16. A. quite B. so C. such D. another17. A. come up B. agreed C. been fed up D. got on well18. A. common B. important C. interesting D. necessary19. A. excellent B. great C. super D. better20. A. education B. skill C. knowledge D. science21. A. work B. start C. finish D. come22. A. changed B. developed C. understand D. experienced23. A. improve B. graduate C. see D. provide24. A. between B. among C. inside D. outside25. A. community B. family C. society D. school分)40三、阅读理解(共20小题,每小题2分,满分AIn 1933 an unknown American called Clarence Nash went to see the filmmaker Walters cartoon film for'Disney. He had a special voice and he wanted to work in Disneychildren. When Walter Disney heard Nash's voice, he said, “Stop! That's our duck!”The duck was the now-famous Donald Duck, who first appeared in 1934 in theThe Wise Little Hen. Donald Duck went on to become one of the most famous filmcartoon characters in the world, and a great part of this was due to Nash's distinctive voice. It may well be one of the most recognizable(可辨识的)(独特的)character voicesin history. The voice is distinctive both for its ducklike quality and the fact that it is oftenvery difficult for anybody to understand, especially when Donald became angry. Laterthat year he became a star after an eight-minute Mickey Mouse film. The cinema, and because he lost his (贪婪的)audience liked him because he was lazy and greedy very quickly. And they loved his voice when he became angry with temper(脾气). Soon Donald was more popular than Mickey Mouse s eight nephews(侄子)Mickey'like Mickey.t goody-goody(假正经)'himself, probably because he wasn In the 1930s, 1940s and 1950s Donald and his friends Mickey, Goofy and Pluto madehundreds of Disney cartoons. He also made educational films about the place of theUSA in the world, and safety in the home. Then in 1966 Donald Duck and his voice disappeared---- there were no more new cartoons.Clarence Nash died in February, 1985. But today's children can still see the oldcartoons on television and hear that famous voice.26. When was the first Donald Duck film made?A. 1966B. 1932C. 1933D. 193427. Who was Clarence Nash?B. A famous duck in the worldA. A cartoon maker in AmericaC. A famous film star in AmericaD. The man who gave Donald Duck's voice28. According to the passage, Donald Duck________.A. became famous mainly because of Nash's special voiceB. was lovely and had a good temperC. had a voice which was easy for people to understandD. made thousands of Disney cartoons with his friends29. Where do today's children see Donald Duck?A. In new filmsB. At the cinemaC. On televisionD. At concerts30. Which would be the best title for the passage?A. Donald DuckB. Walt DisneyC. Clarence NashD. Donald Duck and ClarenceNashBThe following are some people's opinions on using cell phones.I believe that cell phones are not to be used while driving. One site said that talkingon a cell phone while driving had the same results of drunk driving accidents! Also Ithink it is very rude to use your phone in a public place! Once I was in a doctor's office,and people were very quiet. A woman's cell phone started ringing. After what seemed, annoying every one.”a million rings, she stared to talk on her little “toy-----Chelsea from the USThe cell phone would be a great thing if we used it in the right way. Unfortunatelyt use it in the right way because we talk with our friends for hours and'most of us donhours, and that's something we can do better if we have a coffee together. The use ofthe cell phone in this way is dangerous for the development of good socialization. Weneed to think twice about how we are using cell phones.----- Graciela Flores form MexicoOnce when I was studying in the library, I was reading my book. Suddenly, a cellphone rang. I was so annoyed because those students didn't have good manners inpublic. I looked at them in anger, but they didn't pay attention. Nowadays, many young students use cell phones everywhere in my country just for talking to their friends. Itkeeps students from studying.----- Seung-Hye Lee from Koreain cars and airplanes. It is very clear that I think cell phones should be banned(禁止)if they talk on cell phones while they are driving. (分散)people's attention is divertedThe number of car accidents caused by drivers using cell phones has risen, so peopleshould not use them when they are driving. Also, it is dangerous to use them incan interrupt the airplane's signal system. airplanes because the phone signals(信号)----- Yian Ma from China31. What does Chelsea probably agree with?A. Cell phones shouldn't be used in public.B. The woman is suffering from a bad disease.C. Having a drink is exactly like using a cell phone.D. The rings of the cell phones are wonderful.32. Who holds that it is harmful to talk on the cell phone for a long time?A. Yian MaB. ChelseaC. Graciela FloresD. Seung-Hye Lee33. According to Seung-Hye Lee, what's the bad effect of young students' using cell phones?A. It is dangerous for the development of good socialization.B. They are kept away from their studies.t read books in the library.C. They can'D. They can't talk to their friends as they like.34. People that think using cell phones while driving may lead to accidents are from_________.A. Korea and USB. Mexico and ChinaC. US and MexicoD. China and US35. What is the passage mainly about?A. Cell phones can be used in different ways.B. How to use cell phones while driving.C. Cell phones should be used properly.D. People quarreled over using cell phones.CTwo good friends, Sam and Jason, met with a car accident on their way home one night. The next morning, Sam woke up blind. His legs were broken. The doctor, Mr. Leewas standing by his bed, looking at him thoughtfully. When he saw Sam awake, heasked, “How are you feeling, Sam?”Sam smiled and said, “Not bad, Doctor. Thankyou for doing the operation (手术).”Mr. Lee was moved by Sam. When he was leaving,Sam said, “Please don't tell Jason about it.”“... OK.”Mr. Lee replied., Sam was still very sick. Neitherhealed) 伤口s wounds (' Months later when Jasoncould he see or walk. What he could do was just staying in his wheelchair all day long.At first, Jason stayed with him for a few days. But days later, Jason felt very discouragedand embarrassed (尴尬的) to spend time staying with a disabled man like Sam all thetime. So he went to see Sam less and less. He made new friends. From then on, he didn't go to visit Sam any more. Sam didn't have any family or friends other than Jason. Hefelt very sad.Things went from bad to worse. Sam died a year later. When Jason came, Mr. Leegave a letter to him. It was from Sam. In the letter Sam said, “Dear Jason, I am disabled.But I want you to be a healthy man. So I gave my eyes to you so that you can enjoy lifeas a healthy man. Now you have new friends. I'm glad you live a happy life. You arealways my best friend…Sam”. After he read the letter, Mr. Lee said, “I have promisedthat I will keep this a secret until Sam is gone. Now you know it.”Jason stood there.Tears ran down his face.36. The reason why Sam thanked Mr. Lee is that ________.A. Mr. Lee was very kind and friendly to himB. Mr. Lee came to see him early in the morningC. Mr. Lee did the operation according to his wishD. Mr. Lee saved both his and Jason's life37. The underlined word “healed”in the second paragraph may mean ________.A. opened againB. became healthy againC. felt hurt and painfulD. became worse38. Which of the following is the correct order of events in the story?a. Jason made new friends.b. Sam gave his eyes to Jason.c. Sam and Jason were caught in a car accident.d. Sam became disabled and needed friends.e. Sam died and Jason knew what Sam had done for him.a D. c--d-- b--e——A. d--a--c--b--e B. d--c-- b--ea C. c--b--d--a--e39. We can infer from the passage that ___________.A. Sam drove too badly and caused the car accidentB. the unsuccessful operation led to Sam's blindnessC. Jason knew how Sam helped him before Sam diedD. It was Jason that was made blind in the car accident40. From the story, we know that Sam was a man who __________.A. thought friendship was very importantB. depended on his friends too muchC. felt hopeless after the car accident happenedD. always listened to his friends41. Hong Xing Senior School wants a foreign teacher who must be ________.D. an American A. an Englishman B. an Australia man C. a Chinese42. The school is offering about ________ a month to a foreign teacher.A. $10,000B. $12,500C. $150,000D. $15,00043. Where and when will the basketball match be held?B. At Shenhua Stadium on December 19 A. At Tianhe Stadium on October 14an Stadium on October 14 'C. At Tianhe Stadium on December 19 D. At Guo44. If three adults and six students want to watch the basketball match, how much willthey have to pay for theticket?D. 180 yuanA. 165 yuanB. 175 yuanC. 225 yuan45. If you want to know more about the basketball match, you can ________.A. come to No.1 Heping RoadB. callD. come to Tianhe StadiumC. call分)分,满分5四、阅读填空(共5小题,每小题146 Self-confidence, motivation (动机), support and knowledge are the main) determining if要素factors(one succeeds or fails. Each of these factors influences our chances of success in adifferent way.Lack(缺乏) of self-confidence is probably the most dreadful(可怕的) enemy ofsuccess. 47 Even themost capable person is sure to fail with such an attitude(态度). If it is your case too,improving yourself-confidence is a must.Motivation is equally as important as self-confidence. 46 You may even not try to achieve the goal thatlies before you. It is important to find out what is the best motivation for you. If youhave to do something that doesnot motivate you, just treat yourself with a reward(奖赏) after you succeed. Of course,this reward should consist ofsomething that will motivate you to pursue(追求) a success.49 While it is not a must for succeeding in your goals, a lack of support can oftenlead to failure. It is alsotrue that some people cannot succeed without a proper support from theirsurroundings. These people often lose their motivation or worse, their self-confidence. 50 .A. If you know such a person, supporting him or her is a right thing to do.B. There are several main reasons why some people cannot succeed.C. Supportive family and workplace are also very important.D. Without it, you will not push yourself towards a better performance.E. Thinking you are not good enough to achieve your goals is the same as deciding thatyou will not succeed.分)五、写作(共三节,满分35分)首字母填空(共分,满分61小题,每小题6第一节51. If you fail to communicate with a foreigner in words, you can try to e_______ yourideas with body language.52. Tell me your t_______ feelings about my painting. I really want to know what youthink of it.53. Being ten years older, Tom's elder sister often gives him some useful a_______ on his studies and life.54. The old man has no children. L_______, he has very good neighbours and theyoftenhelp him.55. It s_______ rains in this area, so the land is very dry.56. The teacher asked the students to close their eyes and i_______ they were on thebeach.分)分,满分142第二节完成句子(共7小题,每小题在你离开电脑之前,所有的电脑必须关机。

2016年广州市第七中学中考一模英语试题

2016年广州市第七中学中考一模英语试题(2016-06-02 17:18:46)转载▼标签:分类:广州各区中考模拟试题2016广州七中中考英语2016年广州初三英语广州中考20162016年七中初三综合测试题一、语法选择(共15小题,每小题1分,满分15分)Sandstorms hit northwestern China’s Gansu Province 1 the first day this year. According to an expert(专家), visibility (能见度) was less than 100 meters in Minqin, because of the sand. When visibility is less than 1 kilometer, it 2 a sandstorm. A sandstorm is exactly 3 it sounds like: a very strong windstorm 4 carries clouds of sand or dust, and greatly reduces visibility. They are also known 5 dust storms.The sandstorm in Minqin 6 up dust in neighboring towns, such as Baiyin, Wuwei, Jinchang and Lanzhou, the capital city of Gansu Province. Dust-laden winds also swept into Beijing. It first 7 the capital’s suburbs(郊区) at 7 a.m., downtown areas at 9 a.m. The winds, which died down during the night, brought the temperature downto 8 8℃below zero and many flights put off their planned time from the city’s airport.It is quite 9 for sandstorms, which usually 10 between March and June, to happen in winter, when the earth is frozen. The sandstorms in Gansu and Inner Mongolia do not necessarily mean there 11 more of them in the coming spring than last year, but Beijing is taking it very 12 . It is reported that Beijing will 13 6 billion1. A. in B. on C. for D. from2. A. calls B. called C. is called D. was called3. A. what B. how C. when D. where4. A. who B. when C. what D. that5. A. for B. as C. like D. with6. A. blowing B. is blowing C. blows D. blew7. A. arrived B. got C. reached D. gets to8. A. so low as B. so high as C. as high as D. as low as9. A. usual B. usually C. unusual D. unusually10. A. take a place B. takes place C. taking place D. take place11. A. are B. will be C. will have D. is12. A. seriously B. serious C. seriousness D. more serious13. A. take B. pay C. spend D. cost14. A. been set up B. set up C. setted up D. setting up15. A. this B. it C. they D. them二、完形填空(共10小题,每小题1.5分,满分15分)Many things make human beings different or better than or even superior(高级于) toanimals.teach me how to educate myself. Only when I am well-educated, will I be a better humanbeing and be able to better fit into 25 .16. A. quite B. so C. such D. another17. A. come up B. agreed C. been fed up D. got on well18. A. common B. important C. interesting D. necessary19. A. excellent B. great C. super D. better20. A. education B. skill C. knowledge D. science21. A. work B. start C. finish D. come22. A. changed B. developed C. understand D. experienced23. A. improve B. graduate C. see D. provide24. A. between B. among C. inside D. outside25. A. community B. family C. society D. school三、阅读理解(共20小题,每小题2分,满分40分)AIn 1933 an unknown American called Clarence Nash went to see the filmmaker Walter Disney. He had a special voice and he wanted to work in Disney’s cartoon film forchildren. When Walter Disney heard Nash’s voice, he said, “Stop! That’s our duck!” The duck was the now-famous Donald Duck, who first appeared in 1934 in thefilm The Wise Little Hen. Donald Duck went on to become one of the most famous cartoon characters in the world, and a great part of this was due to Nash’s distinctive (独特的)voice. It may well be one of the most recognizable(可辨识的)character voices in history. The voice is distinctive both for its ducklike quality and the fact that it is often very difficult for anybody to understand, especially when Donald became angry. Later that year he became a star after an eight-minute Mickey Mouse film. The cinema audience liked him because he was lazy and greedy(贪婪的), and because he lost his temper(脾气)very quickly. And they loved his voice when he became angry with Mickey’s eight nephews(侄子). Soon Donald was more popular than Mickey Mouse himself, probably because he wasn’t goody-goody(假正经)like Mickey.In the 1930s, 1940s and 1950s Donald and his friends Mickey, Goofy and Pluto made hundreds of Disney cartoons. He also made educational films about the place of the USA in the world, and safety in the home. Then in 1966 Donald Duck and his voice disappeared---- there were no more new cartoons.Clarence Nash died in February, 1985. But today’s children can still see the old cartoons on television and hear that famous voice.26. When was the first Donald Duck film made?A. 1966B. 1932C. 1933D. 193427. Who was Clarence Nash?A. A cartoon maker in AmericaB. A famous duck in the worldC. A famous film star in AmericaD. The man who gave Donald Duck’s voice28. According to the passage, Donald Duck________.A. became famous mainly because of Nash’s special voiceB. was lovely and had a good temperC. had a voice which was easy for people to understandD. made thousands of Disney cartoons with his friends29. Where do today’s children see Donald Duck?A. In new filmsB. At the cinemaC. On televisionD. At concerts30. Which would be the best title for the passage?A. Donald DuckB. Walt DisneyC. Clarence NashD. Donald Duck and Clarence NashBThe following are some people’s opinions on using cell phones.I believe that cell phones are not to be used while driving. One site said that talking on a cell phone while driving had the same results of drunk driving accidents! Also I think it is very rude to use your phone in a public place! Once I was in a doctor’s office, and people were very quiet. A woman’s cell phone started ringing. After what seemed a million rings, she stared to talk on her little “toy”, annoying every one.----- Chelsea from the USThe cell phone would be a great thing if we used it in the right way. Unfortunately most of us don’t use it in the right way because we talk with our friends for hours andhours, and that’s something we can do better if we have a coffee together. The use of the cell phone in this way is dangerous for the development of good socialization. We need to think twice about how we are using cell phones.----- Graciela Flores form MexicoOnce when I was studying in the library, I was reading my book. Suddenly, a cell phone rang. I was so annoyed because those students didn’t have good manners in public. I looked at them in anger, but they didn’t pay attention. Nowadays, many young students use cell phones everywhere in my country just for talking to their friends. It keeps students from studying.----- Seung-Hye Lee from KoreaI think cell phones should be banned(禁止)in cars and airplanes. It is very clear that people’s attention is diverted(分散)if they talk on cell phones while they are driving. The number of car accidents caused by drivers using cell phones has risen, so people should not use them when they are driving. Also, it is dangerous to use them in airplanes because the phone signals(信号)can interrupt the airplane’s signal system. ----- Yian Ma from China31. What does Chelsea probably agree with?A. Cell phones shouldn’t be used in public.B. The woman is suffering from a bad disease.C. Having a drink is exactly like using a cell phone.D. The rings of the cell phones are wonderful.32. Who holds that it is harmful to talk on the cell phone for a long time?A. Yian MaB. ChelseaC. Graciela FloresD. Seung-Hye Lee33. According to Seung-Hye Lee, what’s the bad effect of young students’using cell phones?A. It is dangerous for the development of good socialization.B. They are kept away from their studies.C. They can’t read books in the library.D. They can’t talk to their friends as they like.34. People that think using cell phones while driving may lead to accidents are from_________.A. Korea and USB. Mexico and ChinaC. US and MexicoD. China and US35. What is the passage mainly about?A. Cell phones can be used in different ways.B. How to use cell phones while driving.C. Cell phones should be used properly.D. People quarreled over using cell phones.CTwo good friends, Sam and Jason, met with a car accident on their way home one night. The next morning, Sam woke up blind. His legs were broken. The doctor, Mr. Lee was standing by his bed, looking at him thoughtfully. When he saw Sam awake, he asked, “How are you feeling, Sam?”Sam smiled and said, “Not bad, Doctor. Thank you for doing the operation (手术).”Mr. Lee was moved by Sam. When he was leaving, Sam said, “Please don’t tell Jason about it.”“... OK.”Mr. Lee replied.Months later when Jason’s wounds (伤口) healed, Sam was still very sick. Neithercould he see or walk. What he could do was just staying in his wheelchair all day long. At first, Jason stayed with him for a few days. But days later, Jason felt very discouraged and embarrassed (尴尬的) to spend time staying with a disabled man like Sam all the time. So he went to see Sam less and less. He made new friends. From then on, he didn’t go to visit Sam any more. Sam didn’t have any family or friends other than Jason. He felt very sad.Things went from bad to worse. Sam died a year later. When Jason came, Mr. Lee gave a letter to him. It was from Sam. In the letter Sam said, “Dear Jason, I am disabled. But I want you to be a healthy man. So I gave my eyes to you so that you can enjoy life as a healthy man. Now you have new friends. I’m glad you live a happy life. You are always my best friend…Sam”. After he read the letter, Mr. Lee said, “I have promised that I will keep this a secret until Sam is gone. Now you know it.”Jason stood there. Tears ran down his face.36. The reason why Sam thanked Mr. Lee is that ________.A. Mr. Lee was very kind and friendly to himB. Mr. Lee came to see him early in the morningC. Mr. Lee did the operation according to his wishD. Mr. Lee saved both his and Jason’s life37. The underlined word “healed”in the second paragraph may mean ________.A. opened againB. became healthy againC. felt hurt and painfulD. became worse38. Which of the following is the correct order of events in the story?a. Jason made new friends.b. Sam gave his eyes to Jason.c. Sam and Jason were caught in a car accident.d. Sam became disabled and needed friends.e. Sam died and Jason knew what Sam had done for him.A. d--a--c--b--eB. d--c-- b--e—aC. c--b--d--a--eD. c--d-- b--e—a39. We can infer from the passage that ___________.A. Sam drove too badly and caused the car accidentB. the unsuccessful operation led to Sam’s blindnessC. Jason knew how Sam helped him before Sam diedD. It was Jason that was made blind in the car accident40. From the story, we know that Sam was a man who __________.A. thought friendship was very importantB. depended on his friends too muchC. felt hopeless after the car accident happenedD. always listened to his friendsD41. Hong Xing Senior School wants a foreign teacher who must be ________.A. an EnglishmanB. an Australia manC. a ChineseD. an American42. The school is offering about ________ a month to a foreign teacher.A. $10,000B. $12,500C. $150,000D. $15,00043. Where and when will the basketball match be held?A. At Tianhe Stadium on October 14B. At Shenhua Stadium on December 19C. At Tianhe Stadium on December 19D. At Guo’an Stadium on October 1444. If three adults and six students want to watch the basketball match, how much will they have to pay for theticket?A. 165 yuanB. 175 yuanC. 225 yuanD. 180 yuan45. If you want to know more about the basketball match, you can ________.A. come to No.1 Heping RoadB. callC. callD. come to Tianhe Stadium四、阅读填空(共5小题,每小题1分,满分5分)46 Self-confidence, motivation (动机), support and knowledge are the mainfactors(要素) determining ifone succeeds or fails. Each of these factors influences our chances of success in a different way.Lack(缺乏) of self-confidence is probably the most dreadful(可怕的) enemy ofsuccess. 47 Even themost capable person is sure to fail with such an attitude(态度). If it is your case too, improving yourself-confidence is a must.Motivation is equally as important as self-confidence. 46 You may even not try to achieve the goal thatlies before you. It is important to find out what is the best motivation for you. If you have to do something that doesnot motivate you, just treat yourself with a reward(奖赏) after you succeed. Of course, this reward should consist ofsomething that will motivate you to pursue(追求) a success.49 While it is not a must for succeeding in your goals, a lack of support can oftenlead to failure. It is alsotrue that some people cannot succeed without a proper support from their surroundings. These people often losetheir motivation or worse, their self-confidence. 50 .A. If you know such a person, supporting him or her is a right thing to do.B. There are several main reasons why some people cannot succeed.C. Supportive family and workplace are also very important.D. Without it, you will not push yourself towards a better performance.E. Thinking you are not good enough to achieve your goals is the same as deciding thatyou will not succeed.五、写作(共三节,满分35分)第一节首字母填空(共6小题,每小题1分,满分6分)51. If you fail to communicate with a foreigner in words, you can try to e_______ yourideas with body language.52. Tell me your t_______ feelings about my painting. I really want to know what youthink of it.53. Being ten years older, Tom’s elder sister often gives him some useful a_______ on hisstudies and life.54. The old man has no children. L_______, he has very good neighbours and they oftenhelp him.55. It s_______ rains in this area, so the land is very dry.56. The teacher asked the students to close their eyes and i_______ they were on thebeach.第二节完成句子(共7小题,每小题2分,满分14分)57.在你离开电脑之前,所有的电脑必须关机。

广州十六中中考一模英语试题

2017广州十六中中考一模英语试题一、语法选择Have you ever felt uncomfortable? Many of __1__ feel uneasy when someone stands too close __2__ us, talks to us too __3__ or makes eye contact with us for too long. But have you ever wondered why those things make you uncomfortable?It’s all about personal peace, which means not only __4__ imaginary space around the body, but also the space around all the __5__. People feel that their space is being violated(侵犯) when they meet with an unwelcome sound, smell or look. This is probably why a man on a crowded bus shouting into his mobile phone or a woman next to you putting on strong perfume(香水) makes you feel __6__.__7__ people have had a stronger wish to protect their personal space or not in recent times is hard to say. Yet studies of airlines show that people have a strong desire(渴望) to have space to__8__. In a survey by Trip Advisor, a travel website, people said that if they __9__ pay more for some extra service, they would rather have larger seats than extra food.Although people may need their personal space, some hardly realize it. For example, people on a bus who hold newspapers __10__ their faces to read in fact keep a distance from strangers.Go and watch a library table. You will notice __11__ one of the corner seats will usually__12__ first, because they are the farthest way. What if someone sits __13__ you? Maybe you will pile up books as if to make a wall.Preference(偏好) for personal space are different from culture to culture. Scientists have found that Americans generally prefer more personal space than people from __14__ cultures. In Latin (拉丁人的) cultures, __15__, people are more comfortable standing near each other.1. A. we B. us C. our D. ours2. A. with B. in C. to D. at3. A. loudness B. louder C. loudly D. loudest4. A. a B. an C. the D./5. A. sense B. senses C. sensing D. sensings6. A. anger B. angry C. angers D. angrily7. A. Whether B. What C. That D. Which8. A. them B. their C. themselves D. they9. A. has to B. have to C. had to D. having to10. A. in the front B. in front C. in the front of D. in front of11. A. that B. what C. where D. if12. A. be taken B. be talking C. take D. takes13. A. opposite with B. opposite to C. opposite at D. opposite for14. A. another B. others C. other D. the others15. A. but B. however C. either D. although二、完形填空Is it difficult for you to get up in the morning? Do you sometimes oversleep? Are you often late for work or school? Yes? Then Hiroyuki Sugiyama of Japan has a (an) __16__ bed for you. Hiroyuki’s bed will get you up in the morning! Here is how it __17__.The bed is made up of an alarm clock. Fist5 the alarm clock rings. You have a few __18__ to wake up. Next, a tape recorder in the bed plays classical music or other pleasant sounds. The tape recorder in Hiroyuki’s bed plays a recording of his girlfriend. She whispers in a sweet voice. “Wake up, darling please.” A few minutes later, a second recording sound recording can be loud music or __20__ sounds, Hiroyuki __21__ a recording of his boss shouts, “Wake up immediately, or you’ll be late!”If you don't get up __22__ the second recording, you will be sorry! A mechanical "foot” is in the bed. The mechanical foot kicks you in the head. Then the bed waits a few more minutes, What! You’re still in bed! Slowly the __23__ of the bed rises higher and higher. The foot of the bed goes lower and lower. Finally the bed is vertical (垂直的).You slide off the bed and onto the floor. You are __24__ the bed and awake.Hiroyuki __25__ his bed because he wanted to win a contest. He works for Honda Motor Company. Once every two years Honda has a contest for its 200:000 employees---“All-Honda Idea Contest”.16. A. expensive B. special C. valuable D. comfortable17. A. works B. goes C. happens D. moves18. A. minutes B. hours C. days D. weeks19. A. sends B. turns C. plays D. sounds20. A. pleasant B. interesting C. unpleasant D. funny21. A. knows B. learns C. remembers D. hears22. A. after B. until C. since D. before23. A. end B. middle C. body D. top24. A. inside B. under C. out of D. onto25. A. made B. sold C. bought D. discovered三、阅读理解(A)F. Scott Fitzgerald, bora on September 24, 1896, an American novelist, was once a student of St. Paul Academy, the Newman School and attended Princeton University for a short while. In 1917 he joined the army and was sent to Alabama, where he met his future wife Zelda Sayre. The he had to make some money to impress her.His life with her was full of great happiness, as he wrote in his diary: “My own happiness in the past often approached such joy that I could share it even with the person dearest to me but had to walk it away in quiet streets and take down parts of it in my diary.”This side of paradise, his first novel, was published in 1920. Encouraged by its success, Fitzgerald began to spend more time on his writing. Then he continued with the novel the Beautiful and Damned (1922), a collection of short stories Tales of the Jazz Age (1922), and a play The Vegetable (1923). But his greatest successful novel, The Great Gatsby, published in 1925, which quickly brought him praise from the literary (文学)world. Yet it failed to give him enough money to live. Then, in 1936, he published another collection of short stories All the Sad Young Men.However, Fitzgerald's problems with his wife Zelda affected his siting. During the 1920s he tried to reorder his life; but failed. By 1930, his wife had her first mental breakdown and went to a Swiss hospital. During this period he completed novels Tender Is the Night in 1934. While his wife was in hospital in the United States, he got totally addicted to alcohol (酗酒). Fitzgerald died in 1940, before he could complete the novel The Love of the Last Tycoon.26.How many novels written by Fitzgerald are mentioned in the passage?A.5B. 6C. 7D. 327.Paragraph 2 mainly tells us that .A.Fitzgerald was famous for writing diariesB.Fitzgerald loved his wife deeply and felt happyC.Fitzgerald's wife had a less influence on his writingD.Fitzgerald didn't live happily with his wife so he couldn't share it with others28.Which of the following is the correct order to describe Fitzgerald's share it with othersA.He became addicted to drinking.B.He studied at St. Paul Academy.C.He published the novel This Side of Paradise.D.The Great Gatsby won high praise.E.He tried to reorder his life.F.He joined the army and met Zelda.A. f, c, e, a, b, dB. b, e, a, f, c, dC. f, d, e, c, b, aD. b, f, c, d; e, a29.From the passage we can learn that.A.The Beautiful and Damned was Fitzgerald's first novel.B.The word The Great Gatsby made Fitzgerald rich and famous.C.Fitzgerald succeeded in reordering his life during the 1920s.D.Fitzgerald’s wife broke down more than once.30.The passage is probably followed by an ending paragraph about .A.Fitzgerald struggled with alcoholB. the reasons for Fitzgerald's deathC. comments on Fitzgerald’s literary contributionsD. summary of Fitzgerald’s family life(B)We can make mistakes at any age. Some mistakes we make are about money. But most mistakes are about people. “Did Jerry really care when I broke up with Helen?” “When I got that great job, did Jerry really feel good about as a friend? Or did he en\y my luck?” When we look back, doubts like these can make us feel bad. But when we look back, it’s too late. Why do we go wrong about ourfriends or our enemies? Sometimes what people say hides their real meaning. And if we don't really listen, we miss the feeling behind the words. Suppose someone tells you, “You’re a lucky dog.” Is he really on your side? If he says, “You’re a lucky guy” or “You’re a lucky gal” That’s being friendly. But “lucky dog”? There’s a bit of envy in those words. Maybe he doesn’t see it himself. But bringing in the “dog” bit puts you down a little. What he may be saying is he doesn’t think you deserve you luck.How can you tell the real meaning behind someone's words? One way is to take a good look at the person talking. Do his words fit the way he looks? Dose what he says square with the tone of voice? His posture(体态)?The look m his eyes? Stop and think. Spend some time thinking about the real meaning of what people say to you; and you may save another mistake.31.The question in the first paragraph tell us that the speaker.A.feels happy because his friends were nice to himB.feels he may not have ^read^ his friends1 true feelings correctlyC.thinks it was a mistake to have broken up with his girl friend HelenD.is sorry that his friends let him down32.From the example “You’re a lucky dog”, we can learn that .A.the speaker of the sentence is friendlyB.it means the same as “You’re a lucky guy” or “You’re a lucky gal.”C.sometimes the words used by the speaker give a tip to the feeling behind the wordsD.the word “dog” shouldn’t be used to describe a person33.The passage tries to tell you how to .A.avoid mistakes about money and friendsB.bring the ^dog55 bit into our conversationC.be friendly to other peopleD.avoid mistakes in understanding what people tell you34.What is important in listening to a person?A.To notice his hone, his posture and the look in his eyes.B.To listen to how he pronounces his words.C.To check if his words go well with his manner, his tone of voice and his posture.D.Don't believe what he says.35.If you follow the writer’s advice, you would.A.be able to get the real meaning of people's wordsB.avoid any mistakes while talking with the people who envy youC.not lose real friends who say things that to not please youD.be able to observe people as they are talking to you(C)Last year in the UK at least 45 people died and 900 more were injured in car accidents where drivers were using their mobile phones. Yet many people continue to use them while driving even though it’s dangerous.Research has shown that it is difficult to concentrate on driving and talking at the same time. It can even be more dangerous than driving after drinking too much. A recent study found that when drivers were talking on their mobile phones, their stopping times were 30 percent slower than when they had drunk too much ---- and nearly 50 percent slower than when they were driving normally. It also found that drivers talking on mobile phones were less able to control their cars than drunk drivers.And talking isn’t even the most serious problem. T exting is. Unbelievably, another recent study reported that 22% of adults admitted they had sent a text message while driving at least once in the past month. An average text message takes 90 seconds to write and send. That means for one and a half minutes a driver is looking at their phone's screen and not at the road. The arrival of new smart phones such as the iPhone will only make matters worse as they will allow users to do more things than ever before.Using a mobile phone while driving puts others1 lives at risk. NO matter how well we drive, if another driver is not being professional or careful, we are put in danger by their actions. Such drivers are selfish, careless, and should have their driving licenses(驾照) cancelled.There is no doubt that mobile phones can be fun and are extremely useful, especially when you're in trouble. But there is no need to use them while driving. Just wait until you stop or you will probably get into trouble of your own.36.The underlined word "them” in paragraph 1 refers to .A.phone usersB. mobile phonesC. driversD. cars37.According to the passage, if a driver needs 10 seconds to stop when driving normally, they will need seconds to stop when talking on a mobile phone.A.12B. 13C. 14D. 1538.According to the passage; in what order do the following activities influence driving? Dangerous →More dangerous →Most dangerousA.drinking →talking on phone →textingB.texting →talking on phone →drinkingC.talking on phone →texting →drinkingD.drinking →texting →talking on phone39.Why will new types of mobile phones make the driving problem worse?A.It will take longer to send text messages.B.People will want to talk on their phones more often.C.There will be more things for people to do with their phones.D.People think the new phones are easier and safer to use.40.According to the writer, what should be done to people who use mobile phones when driving?A.They should be put into prison.B.Their cars should be taken away.C.Their phones should be taken from them.D.They should not be allowed to drive any longer.第二节阅读填空Thanksgiving Day is a very special day for people in the United States. They celebrate it on the last Thursday in November. ___46___ In Britain, where this festival is called Harvest Festival, people celebrate it earlier in the year, in September.___47___. In North America and Britain, harvest time for most fruit and crops is in the autumn. In these countries and other Christian places, people give thanks to God on a special day of the year. They thank God for the good things that have happened during the year and for the good harvest they have had; ___48___.A Thanksgiving Day was held every year for a long time, but not always on the same day of theyear, ___49___. In 1863. President Abraham Lincoln changed the date, and said that the last Thursday in November should be Thanksgiving Day.___50___A.Then, in 1789, President George Washington named November 26th as the Day of ThanksgivingB. A harvest is the fruit you take from the trees and the crops you take from the ground.C.Nowadays, North Americans around the world get together with their families on this day to eat good food and have a happy time.D.Canadians also celebrate Thanksgiving Day, but they do it on the second Monday of October.E.People usually take small boxes of fruit, flowers, and vegetables to their churches to show their thanks.四、写作第一节单词拼写51.I feel a little hot. Would you m_________ opening the window?52.Keep quiet please. Don't make any n_________ in the library.53.Can you give me a hand, please? The bookshelf is too h_________ for me to move by myself.54.This kind of flower is very common in our city, and we can see it e_________________ _.55.When a_________ comes, the leaves turn yellow and soon fall.56.There’s a m_________ over there. Let's go and buy some fruit and meat.第二节完成句子57.这个会议很重要,持续了三天。

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2016 年七中初三综合测试题一、语法选择(共15 小题,每小题1 分,满分15 分)Sandstorms hit northwestern China’s Gansu Province 1 the first day this year. According to an expert(专家), visibility (能见度) was less than 100 meters in Minqin, because of the sand. When visibility is less than 1 kilometer, it 2 a sandstorm. A sandstorm is exactly 3 it sounds like: a very strong windstorm 4 carries clouds of sand or dust, and greatly reduces visibility. They are also known 5 dust storms.The sandstorm in Minqin 6 up dust in neighboring towns, such as Baiyin, Wuwei, Jinchang and Lanzhou, the capital city of Gansu Province. Dust-laden winds also swept into Beijing. It first 7 the capital’s suburbs(郊区) at 7 a.m., downtown areas at 9 a.m. The winds, which died down during the night, brought the temperature down to 8 8℃ below zero and many flights put off their planned time from the city’s airport.It is quite 9 for sandstorms, which usually 10 between March and June, to happen in winter, when the earth is frozen. The sandstorms in Gansu and Inner Mongolia do not necessarily mean there 11 more of them in the coming spring than last year, but Beijing is taking it very 12 . It is reported that Beijing will 13 6 billion yuan (US 725 million) in preventing sandstorms in the capital and has already 14 a special team to make sure what causes 15 .1. A. in B. on C. for D. from2. A. calls B. called C. is called D. was called3. A. what B. how C. when D. where4. A. who B. when C. what D. that5. A. for B. as C. like D. with6. A. blowing B. is blowing C. blows D. blew7. A. arrived B. got C. reached D. gets to8. A. so low as B. so high as C. as high as D. as low as9. A. usual B. usually C. unusual D. unusually10. A. take a place B. takes place C. taking place D. take place11. A. are B. will be C. will have D. is12. A. seriously B. serious C. seriousness D. more serious13. A. take B. pay C. spend D. cost14. A. been set up B. set up C. setted up D. setting up15. A. this B. it C. they D. Them二、完形填空(共10 小题,每小题1.5 分,满分15 分)Why do I want to go to college? No one has ever asked me 16 a question. But many times I have asked myself. I have 17 a whole variety of reasons. The most 18 reason is that I want to be a 19 man.Many things make human beings different or better than or even superior(高级于) to animals.One of the most important things is 20 . If I fail to receive higher education, my education will not 21 . As I want to be a fully 22 man, I must get a well-rounded education, which good colleges and universities are supposed to 23 . I know one can get educated in many ways, but colleges and universities are 24 the best places to teach me how to educate myself. Only when I am well-educated, will I be a better human being and be able to better fit into 25 .16. A. quite B. so C. such D. another17. A. come up B. agreed C. been fed up D. got on well18. A. common B. important C. interesting D. necessary19. A. excellent B. great C. super D. better20. A. education B. skill C. knowledge D. science21. A. work B. start C. finish D. come22. A. changed B. developed C. understand D. experienced23. A. improve B. graduate C. see D. provide24. A. between B. among C. inside D. outside25. A. community B. family C. society D. School三、阅读理解(共20 小题,每小题2 分,满分40 分)AIn 1933 an unknown American called Clarence Nash went to see the filmmaker Walter Disney. He had a special voice and he wanted to work in Disney’s cartoon film for children. When Walter Disney heard Nash’s voice, he said, “Stop! That’s our duck!”The duck was the now-famous Donald Duck, who first appeared in 1934 in the film The Wise Little Hen. Donald Duck went on to become one of the most famous cartoon characters in the world, and a great part of this was due to Nash’s distinctive(独特的)voice. It may well be one of the most recognizable(可辨识的)character voices in history. The voice is distinctive both for its ducklike quality and the fact that it is often very difficult for anybody to understand, especially when Donald became angry. Later that year he became a star after an eight-minute Mickey Mouse film. The cinema audience liked him because he was lazy and greedy(贪婪的), and because he lost his temper(脾气)very quickly. And they loved his voice when he became angry with Mickey’s eight nephews(侄子). Soon Donald was more popular than Mickey Mouse himself, probably because he wasn’t goody-goody (假正经)like Mickey.In the 1930s, 1940s and 1950s Donald and his friends Mickey, Goofy and Pluto made hundreds of Disney cartoons. He also made educational films about the place of the USA in the world, and safety in the home. Then in 1966 Donald Duck and his voice disappeared---- there were no more new cartoons.Clarence Nash died in February, 1985. But today’s children can still see the old cartoons on television and hear that famous voice.26. When was the first Donald Duck film made?A. 1966B. 1932C. 1933D. 193427. Who was Clarence Nash?A. A cartoon maker in AmericaB. A famous duck in the worldC. A famous film star in AmericaD. The man who gave Donald Duck’s voice28. According to the passage, Donald Duck________.A. became famous mainly because of Nash’s special voiceB. was lovely and had a good temperC. had a voice which was easy for people to understandD. made thousands of Disney cartoons with his friends29. Where do today’s children see Donald Duck?A. In new filmsB. At the cinemaC. On televisionD. At concerts30. Which would be the best title for the passage?A. Donald DuckB. Walt DisneyC. Clarence NashD. Donald Duck and Clarence NashBThe following are some people’s opinions on using cell phones.I believe that cell phones are not to be used while driving. One site said that talking on a cell phone while driving had the same results of drunk driving accidents! Also I think it is very rude to use your phone in a public place! Once I was in a doctor’s office, and people were very quiet. A woman’s cell phone started ringing. After what seemed a million rings, she stared to talk on her little “toy”, annoying every one.----- Chelsea from the USThe cell phone would be a great thing if we used it in the right way. Unfortunately most of us don’t use it in the right way because we talk with our friends for hours and hours, and that’s something we can do better if we have a coffee together. The use of the cell phone in this way is dangerous for the development of good socialization. We need to think twice about how we are using cell phones.----- Graciela Flores form Mexico Once when I was studying in the library, I was reading my book. Suddenly, a cell phone rang. I was so annoyed because those students didn’t have good manners in public. I looked at them in anger, but they didn’t pay attention. Nowadays, many young students use cell phones everywhere in my country just for talking to their friends. It keeps students from studying.----- Seung-Hye Lee from KoreaI think cell phones should be banned(禁止)in cars and airplanes. It is very clear that people’s attention is diverted(分散)if they talk on cell phones while they are driving. The number of car accidents caused by drivers using cell phones has risen, so people should not use them when they are driving. Also, it is dangerous to use them in airplanes because the phone signals(信号)can interrupt the airplane’s signal system.----- Yian Ma from China31. What does Chelsea probably agree with?A. Cell phones shouldn’t be used in public.B. The woman is suffering from a bad disease.C. Having a drink is exactly like using a cell phone.D. The rings of the cell phones are wonderful.32. Who holds that it is harmful to talk on the cell phone for a long time?A. Yian MaB. ChelseaC. Graciela FloresD. Seung-Hye Lee33. According to Seung-Hye Lee, what’s the bad effect of young students’ using cell phones?A. It is dangerous for the development of good socialization.B. They are kept away from their studies.C. They can’t read books in the library.D. They can’t talk to their friends as they like.34. People that think using cell phones while driving may lead to accidents are from _________.A. Korea and USB. Mexico and ChinaC. US and MexicoD. China and US35. What is the passage mainly about?A. Cell phones can be used in different ways.B. How to use cell phones while driving.C. Cell phones should be used properly.D. People quarreled over using cell phones.CTwo good friends, Sam and Jason, met with a car accident on their way home one night. The next morning, Sam woke up blind. His legs were broken. The doctor, Mr. Lee was standing by his bed, looking at him thoughtfully. When he saw Sam awake, he asked, “How are you feeling, Sam?” Sam smiled and said, “Not bad, Doctor. Thank you for doing the operation (手术).” Mr. Lee was moved by Sam. When he was leaving, Sam said, “Please don’t tell Jason about it.” “... OK.” Mr. Lee replied.Months later when Jason’s wounds (伤口) healed, Sam was still very sick. Neither could he see or walk. What he could do was just staying in his wheelchair all day long. At first, Jason stayed with him for a few days. But days later, Jason felt very discouraged and embarrassed (尴尬的) to spend time staying with a disabled man like Sam all the time. So he went to see Sam less and less. He made new frien ds. From then on, he didn’t go to visit Sam any more. Sam didn’t have any family or friends other than Jason. He felt very sad.Things went from bad to worse. Sam died a year later. When Jason came, Mr. Lee gave a letter to him. It was from Sam. In the letter Sam said, “Dear Jason, I am disabled. But I want you to be a healthy man. So I gave my eyes to you so that you can enjoy life as a healthy man. Now you have new friends. I’m glad you live a happy life. You are always my best friend…Sam”. After he read the letter, Mr. Lee said, “I have promised that I will keep this a secret until Sam is gone. Now you know it.” Jason stood there. Tears ran down his face.36. The reason why Sam thanked Mr. Lee is that ________.A. Mr. Lee was very kind and friendly to himB. Mr. Lee came to see him early in the morningC. Mr. Lee did the operation according to his wishD. Mr. Lee saved both his and Jason’s life37. The underlined word “healed” in the second paragraph may mean ________.A. opened againB. became healthy againC. felt hurt and painfulD. became worse38. Which of the following is the correct order of events in the story?a. Jason made new friends.b. Sam gave his eyes to Jason.c. Sam and Jason were caught in a car accident.d. Sam became disabled and needed friends.e. Sam died and Jason knew what Sam had done for him.A. d--a--c--b--eB. d--c-- b--e—aC. c--b--d--a--eD. c--d-- b--e—a39. We can infer from the passage that ___________.A. Sam drove too badly and caused the car accidentB. the unsuccessful operation led to Sam’s blindnessC. Jason knew how Sam helped him before Sam diedD. It was Jason that was made blind in the car accident40. From the story, we know that Sam was a man who __________.A. thought friendship was very importantB. depended on his friends too muchC. felt hopeless after the car accident happenedD. always listened to his friends41. Hong Xing Senior School wants a foreign teacher who must be ________.A. an EnglishmanB. an Australia manC. a ChineseD. an American42. The school is offering about ________ a month to a foreign teacher.A. $10,000B. $12,500C. $150,000D. $15,00043. Where and when will the basketball match be held?A. At Tianhe Stadium on October 14B. At Shenhua Stadium on December 19C. At Tianhe Stadium on December 19D. At Guo’an Stadium on October 1444. If three adults and six students want to watch the basketball match, how much will they have to pay for the ticket?A. 165 yuanB. 175 yuanC. 225 yuanD. 180 yuan45. If you want to know more about the basketball match, you can ________.A. come to No.1 Heping RoadB. call 020-********C. call 020-********D. come to Tianhe Stadium四、阅读填空(共 5 小题,每小题 1 分,满分5 分)46 Self-confidence, motivation (动机), support and knowledge are the main factors(要素) determining ifone succeeds or fails. Each of these factors influences our chances of success in a different way.Lack(缺乏) of self-confidence is probably the most dreadful(可怕的) enemy of success. 47 Even themost capable person is sure to fail with such an attitude(态度). If it is your case too, improving yourself-confidence is a must.Motivation is equally as important as self-confidence. 48You may even not try to achieve the goal thatlies before you. It is important to find out what is the best motivation for you. If you have to do something that does not motivate you, just treat yourself with a reward(奖赏) after you succeed. Of course, this reward should consist of something that will motivate you to pursue(追求) a success.49 While it is not a must for succeeding in your goals, a lack of support can often lead to failure. It is alsotrue that some people cannot succeed without a proper support from their surroundings. These people often lose their motivation or worse, their self-confidence. 50 .A. If you know such a person, supporting him or her is a right thing to do.B. There are several main reasons why some people cannot succeed.C. Supportive family and workplace are also very important.D. Without it, you will not push yourself towards a better performance.E. Thinking you are not good enough to achieve your goals is the same as deciding that you will not succeed.五、写作(共三节,满分35 分)第一节首字母填空(共6 小题,每小题1 分,满分6 分)51. If you fail to communicate with a foreigner in words, you can try to e_______ your ideas with body language.52. Tell me your t_______ feelings about my painting. I really want to know what you think of it.53. Being ten years older, Tom’s elder sister often gives him some useful a_______ on his studies and life.54. The old man has no children. L_______, he has very good neighbours and they often help him.55. It s_______ rains in this area, so the land is very dry.56. The teacher asked the students to close their eyes and i_______ they were on the beach.第二节完成句子(共7 小题,每小题2 分,满分14 分)57. 在你离开电脑之前,所有的电脑必须关机。

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