2013徐汇区中考数学模拟考试卷

2013徐汇区中考数学模拟考试卷 2013徐汇区中考数学模拟考试卷 考生注意:1.本试卷满分120分，考试时间120分钟。 一、选择题(共8小题，每小题3分，共24分，每题给出的四个选项中，只有一个选项符合要求，请把你认为正确的选项序号填入下面相应题号的 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 格内) x，1>0,,1.把不等式组的解集表示在数轴上，正确的是 ,x,,10, (A) (B) (C) (D) 2.下列事件中是必然事件的是 (A)打开电视机，正在播少儿节目 (B)湟中的中秋节晚上一定能看到月亮 (C)早晨的太阳一定从东方升起 (D)小红3岁就加入了少先队 3.下图是由一些相同的小正方体构成的几何体的三视图. 主视左视俯视 图 图 图 这些相同的小正方体的个数是 (A)4个 (B)5个 (C)6个 (D)7个 4.已知?O和?O的半径分别为3cm和5cm，两圆的圆心距是6cm，则两圆的位置关系是 12 (A)内含 (B)外离 (C)内切 (D)相交 5.设A 、B 、C 表示三种不同的物体，现用天平称了两次，情况如图所示，那么“A”、“ B ”、“C ”这三种物体按质量从大到小的顺序排应为 (A) A B C (B)C A B (C) B A C(D) B C A 6.蜡是非晶体，在加热过程中先要变软，然后逐渐变稀，然后全部变为液态，整个过程温度不断上升,没有一定的熔化温度，如图所示，四个图象中表示蜡溶化的是 procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the 27.三角形两边长分别为3和6，第三边是方程的解，则这个三角形的周长xx,，,680 是 (A)11 (B)13 (C)11或13 (D)11和13 8.下列美丽的图案，既是轴对称图形又是中心对称图形的个数是 (A)1个 (B)2个 (C)3个 (D)4个 二、填空题(共9小题，每小题3分，共27分) 1,9.的相反数的倒数是________. 2 10.我县是全省人口最多的县，约为473500人，用科学记数法表示为_______. 211.分解因式:_________. xyxyy,，,44 12.正在修建的西塔(西宁——塔尔寺)高速公路上，有一段 工程 路基工程安全技术交底工程项目施工成本控制工程量增项单年度零星工程技术标正投影法基本原理 ，若甲、乙两个工程队 若设甲单单独完成，甲工程队比乙工程队少用10天;若甲、乙两队合作，12天可以完成.独完成这项工程需要x天.则根据题意，可列方程为________________. 313.点P既在反比例函数yx,,,(0)的图像上，又在一次函数的图像上，yx,,,2x 则P点的坐标是___________. 14.一商店把某种品牌的羊毛衫按标价的八折出售，仍可获利20%，若该品牌的羊毛衫的进价每价是100元，则标价是每件___________元. 2A xyx，，，,,4(2)0,15.若则 ______________. 32xy，,E D 16.已知:如图(1)，在Rt?ABC中，?B=90?，D、E分别 是边AB、AC的中点，DE=4，AC=10，则AB=_____________. C B 17.小红、小明、小芳在一起做游戏时，需要确定游戏的先后 顺序.他们约定用“剪子、包袱、锤子”的方式确定.问在一 个回合中三个人都出包袱的概率是____________. 三、计算题(共2小题，每小题5分，共10分) ,101,,,,,318.计算:?. ，,,，,, 16(2)20043tan60,,,,33,,,, procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the 229xxx,,,19.化简: , .,,xxx,，33,, 四、作图题(共2小题，每小题5分，共10分) 20.(本题满分5分)有一块三角形的地，现要平均分给四农户种植(即四等分三角形面积).请你在图(2)上作出分法.(不写作法，保留作图痕迹) A C B 图(2) 21.(本题满分5分)请用几何图形“?”、“‖”、“ ”(一个三角形，两条平行线，一个半圆)作为构件，尽可能构思独特且有意义的图形，并写上一两句贴切，诙谐的解说词.(至少两幅图) 如: 吊灯 五、解答题(共6小题，第22、23、24题各6分，第25题8分，第26题11分，第27题12分，共49分) 22.(本题满分6分)某城市现有人口42万人. 计划 项目进度计划表范例计划下载计划下载计划下载课程教学计划下载 一年后城镇人口增加0.8%，农村人中增加1.1%，这样全市人口得增加1%，求这个城市现有城镇人口和农村人口分别是多少人, 23.(本题满分6分)(如图3)有一块三角形土地，它的底边BC=100米，高AH=80米，某单位要沿着地边BC修一座底面是矩形DEFG的大楼，D、G分别在边AB、AC上.若大楼的宽是40米，求这个矩形的面积. A G D B C E H F 图(3) 24.(本题满分6分)为了从甲、乙两名学生中选拔一人参加今年六月份的全县中学生数学竞赛，每个月对他们的学习水平进行一次测验，图(4)是两人赛前5次测验成绩的折线统计图. procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-20第 3 页 共 6 页 00 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the (1)别求出甲、乙两名学生 5次测验成绩的平均数及方差. (2)如果你是他们的辅导教师，应选派哪一名学生参加这次数学竞赛.请结合所学统计知识说明理由. 100 95 90 甲 85 80 乙 75 70 65 60 一月 二月 三月 四月 五月 月份 ,π25.(本题满分8分)如图(5)，在?O中，AB是直径，半径为R，= AC3求:(1)?AOC的度数. C B A O 图(5) (2)若D为劣弧BC上的一动点，且弦AD与半径OC交于E点.试探求?AEC??DEO时，D点的位置. 26.(本题满分11分) 阅读材料: C 如图(6)在四边形ABCD中，对角线AC?BD，垂足为P. D 1求证:S= AC?BD 四边形ABCDP 2 1,S,AC,PD?ACD,,2证明:AC?BD? B A ,1图(6) ,S,AC,BP?ABC,2, 1111?S=S+S= AC?PD+ AC?BP= AC(PD+PB)= AC?BD 四边形ABCD?ACD?ACB2222 解答问题: (1)上述证明得到的性质可叙述为_________________________ ____________________________________________________________________. procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the (2)已知:如图(7)，等腰梯形ABCD中，AD?BC，对角线AC?BD且相交于点P，AD=3cm,BC=7cm，利用上述的性质求梯形的面积. A D P B C 图7 12 27.(本题满分12分)已知二次函数的图象经过点A(C,-2)， yxbxc,，，2 求证:这个二次函数图象的对称轴是x=3. 题目中的矩形框部分是一段被墨水染污了无法辩认的文字. (1)根据已知和结论中现有的信息，你能否求出题中的二次函数解析式,若能，请写出求解过程，并画出二次函数的图象;若不能，请说明理由. (2)请你根据已有的信息，在原题中的矩形框中，填加一个适当的条件，把原题补充完整. 数学试卷参考 答案 八年级地理上册填图题岩土工程勘察试题省略号的作用及举例应急救援安全知识车间5s试题及答案 一、 选择题 1.B 2.C 3.B 4.D 5.A 6.C 7.B 8.C 二、 填空题 1111212529.2 10.4.35×10 11.，,，,或1 12. yx(2),xxxx，，101210 113.(1,-3) 14.150元 15.-6 16.6 17. 27 三、 计算题 x，918.-1 19. 四、 不惟一 ?BC任意四等分 ?任意的AD四等分 ?各边中点连结 A A A C C B B C B D procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-20第 5 页 共 6 页 00 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the 五、22.城镇14万人，农村28万人 2 23.2000米 222 24.(1)=80,=80,S=70, S=50; xx甲乙甲乙 (2)选甲参加 25.(1)?AOC=60? (2)D的位置，只要满足?DOB=60?，或AC?OD或劣弧BC的中点其中一条. 26.(1)叙述:对角线互相垂直的四边形的面积等于对角线乘积的一半. 2 (2)S=25(cm). 梯形 27.(1) b,,,3,2a,11,22,，，,,,,,，cbccyxx2,32 ,22, 1,a,,,2, (2)以下其中的一种情况(均可得分) ? 过抛物线的任意一点的坐标; ? 顶点坐标为 ; ? 当x轴的交点坐标 ? 当y轴的交点坐标为(0，2) ? b=-3或c=2. procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T4744-2000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the