最新徐州中考数学真题及答案优秀名师资料.doc
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1、2015徐州中考数学真题及答案2014年江苏省扬州市中考数学试卷 ,满分:150分,考试时间:120分钟, 一、选择题(本大题共有8小题.每小题3分共24分.) ,11.(2014年徐州中考) 2等于 ( ) 11A.2 B.,2 C. D., 22【测量目标】本题考查幂的运算,属于容易题. 111,【解题指南】故选C. ,22,2.22. (2014年徐州中考)右图是用5个相同的立方体搭成的几何体,其主视图是 ( ) (MXZ5 (第2题图) MXZ1MXZ2MXZ3 MXZ4 A B C D 【测量目标】本题考查三视图,属于容易题. 【解题指南】根据直观图和主视方向,可得主视图是:下面三个
2、正方形上面一个正方形靠最右边,故选D. 3. (2014年徐州中考)抛掷一枚均匀的硬币,前2次都正面朝上,第3次正面朝上的概率 ( ) 111A.大于 B.等于 C.小于 D.无法确定222【测量目标】本题考查概率,属于容易题. 1【解题指南】抛掷均匀硬币,每一次正面朝上和反面朝上的概率相同都是,且与抛掷的次数无关,2故选B. 4. (2014年徐州中考)下列运算中错误的是 ( )(procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure
3、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 pressu
4、re 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 cons
5、truction 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
6、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 pro
7、visions, 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 12 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions
8、, 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 2A. B. C. D. 2,3,52,3,68,2,2(,3),3【测量目标】本题考查无理数的运算,属于容易题. 【解题指南】,故选A. 23,5,5. (2014年徐州中考)将函数y=,3x的图象沿y轴向上平移2个
9、单位长度后,所得图象对应的函数关系式为 ( ) A. B. C. D. y,3x,2y,3x,2y,3(x,2)y,3(x,2)【测量目标】本题考查直角坐标系中一次函数图象的平移,属于容易题. 【解题指南】的图象沿轴向上平移2个单位长度,所得图象对应的函数关系式为yyx,3,故选A. yx,,326. (2014年徐州中考)顺次连接正六边形的三个不相邻的顶点.得到如图所示的图形,该图形 ( ) MXZ6 (第6题图) A.既是轴对称图形也是中心对称图形 B.是轴对称图形但并不是中心对称图形 C.是中心对称图形但并不是轴对称图形 D.既不是轴对称图形也不是中心对称图形 【测量目标】本题考查平面图
10、形的轴对称和中心对称属于容易题. 【解题指南】正六边形与内接的正三角形属于轴对称图形,但不属于中心对称图形,故选B. 7. (2014年徐州中考)若顺次连接四边形的各边中点所得的四边形是菱形,则该四边形一定是 ( ) A.矩形 B.等腰梯形 C.对角线相等的四边形 D.对角线互相垂直的四边形 【测量目标】本题考查平面图形的性质属于容易题. 【解题指南】菱形四条边都相等,即四边形的对角线相等,故选C.8. (2014年徐州中考)点A、B、C在同一条数轴上,其中点A、B表示的数分别为,3、1,若BC=2,则AC等于 ( ) A.3 B.2 C.3或5 D.2或6 【测量目标】本题考查实数大小与在数
11、轴上的位置,属于容易题. 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 we
12、lded 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 engin
13、eering 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 arres
14、tor 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
15、 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 12 million. Direct responsibili
16、ty 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 responsibili
17、ty for the BC,2C3AC6【解题指南】且表示的数为,则表示的数可能为或,则等于或,故选B1,12D. 二、填空题(本大题共有10小题.每小题3分共30分) 29. (2014年徐州中考)函数中,自变量x的取值范围为 . y,x,1【测量目标】本题考查函数自变量的取值范围,属于容易题. x,10x,1【解题指南】分数中分母不能为零,即,则的取值范围为. x210. (2014年徐州中考)我国“钓鱼岛”周围海域面积约170 000km,该数用科学记数法可表示为 . 【测量目标】本题考查科学计数法,属于容易题. 522170 000【解题指南】km用科学计数法可表示为km. 1.710
18、,11. (2014年徐州中考) 函数y=2x与y=x+1的图象交点坐标为 . 【测量目标】本题考查两个函数图象在坐标系中的交点,属于容易题. yx,2x,1,【解题指南】建立方程组,解得,则交点的坐标为. (1,2),y,2yx,,1,22ab,ab,b=,1,则代数式12. (2014年徐州中考)若ab=2,a的值等于 . 【测量目标】本题考查代数式的求值,属于容易题. 2222【解题指南】,则. abab,2,1abababab,()abab,,,2(1)2213. (2014年徐州中考)半径为4cm,圆心角为60?的扇形的面积为 cm. 【测量目标】本题考查扇形的面积,属于容易题. 6
19、08:260:4S,,,4【解题指南】半径为cm.圆心角为,则扇形的面积为. 3603:统计图: 14. (2014年徐州中考)下图是某足球队全年比赛情况的MXZ7 (第14题图) 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
20、 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 atmo
21、spheric 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
22、 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 a
23、nd 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 penal
24、ties (1) injuries fatalities directly punished 12 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,
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