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1、盐城2010中考数学试题绝密?启用前 盐城市二?一?年高中阶段教育招生统一考试 数 学 试 题 注意事项: 1(本试卷考试时间为120分钟，试卷满分150分，考试形式闭卷( 2(本试卷中所有试题必须作答在答题卡上规定的位置，否则不给分( 3(答题前，务必将自己的姓名、准考证号用0.5毫米黑色墨水签字笔填写在试卷及答题卡上( 一、选择题(本大题共有,小题，每小题3分，共24分(在每小题所给出的四个选项中，只有一项是符合题目要求的，请将正确选项前的字母代号填涂在答题卡相应位置上) 0(2010的值是 1A(2010 B(0 C(1 D(,1 12(, 的相反数是 211A( B(,2 C(, D(
2、2 223(下列四个几何体中，主视图、左视图、俯视图完全相同的是 A(圆锥 B(圆柱 C(球 D(三棱柱 4(以下图形中，既是轴对称图形，又是中心对称图形的是 A(等边三角形 B(矩形 C(等腰梯形 D(平行四边形 5(下列说法或运算正确的是 2222A(1.010有3个有效数字 B( (a,b),a,bA 23510 46 a，a,aC( D(a?a= a6(如图所示，在菱形ABCD中，两条对角线AC,6，BD,8，则此菱形 B D 的边长为 C A(5 B(6 C(8 D(10 ,第6题, 12x,0y,y,xy,x7(给出下列四个函数:?;?;?;?(时，y随x的y,xx增大而减小的函数
3、有 A(1个 B(2个 C(3个 D(4个 8(填在下面各正方形中的四个数之间都有相同的规律，根据此规律，m的值是 0 4 6 8 6 2 4 m 44 2 22 6 8 4 A(38 B(52 C(66 D(74 strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessme
4、nt and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implem
5、ent the Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of (Hunan Office issued 2013 No. 5), Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely impl
6、ement the safety production of the party with responsibility, a pair of responsibility. Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establ
7、ish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsib
8、ility to the grassroots. 3, strict accountability and target management. Adhere to the who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security principle, the implementation of safety The production
9、 of cure. stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index as
10、sessment, strictly implement the safety production of the one vote veto and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of s
11、mall, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling For the people , the interests of the masses no matter concept understanding is not in place. The specific work treats with the deployment,
12、a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of six systems construction and construction of mechanical ventilation to file the form, fo
13、rwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in across the board , and the quality 二、填空题(本大题共有10小题，每小题3分，共30分(
14、不需写出解答过程，请将答案直接写在答题卡相应位置上) 9( 4的算术平方根是 ? ( 10(使有意义的的取值范围是 ? ( xx,2a b 0 b11(实数、在数轴上对应点的位置如图所示， a,第11题, b,则 ? (填“”、“”或“”) ( a,212(因式分解: ? ( 2a,4a,13(不透明的袋子中装有4个红球、3个黄球和5个蓝球，每个球除颜色不同外其它都相同，从中任意摸出一个球，则摸出 ? 球的可能性最大( 14(12名学生参加江苏省初中英语听力口语自动化考试成绩如下:28，21，26，30，28，27，30，30，18，28，30，25(这组数据的众数为 ? ( 15(写出图象经
15、过点(1，,1)的一个函数关系式 ? ( 16(已知圆锥的底面半径为3，侧面积为15，则这个圆锥的高为 ? ( ,17(小明尝试着将矩形纸片ABCD(如图?，ADCD)沿过A点的直线折叠，使得B点落在AD边上的点F处，折痕为AE(如图?);再沿过D点的直线折叠，使得C点落在DA边上的点N处，E点落在AE边上的点M处，折痕为DG(如图?)(如果第二次折叠后，M点正好在?NDG的平分线上，那么矩形ABCD长与宽的比值为 ? ( D A F D A N D A M G B C B B C E C E y ? ? ? A k18(如图，A、B是双曲线 y= (k0) 上的点， A、B两点的横坐标 xB
16、 分别是a、2a，线段AB的延长线交x轴于点C，若S=6(则 ?AOCk= ? ( C x O ,第18题, 三、解答题(本大题共有10小题，共96分(请在答题卡指定区域内作答， 解答时应写出文字说明、证明过程或演算步骤) 19(本题满分8分)计算: 112,1,a,1(1) (2)()?(1) ,3，(),cos30a3strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overa
17、ll concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the respo
18、nsibility system. One is the in-depth study and implement the Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of (Hunan Office issued 2013 No. 5), Hunan province safety supervision and management responsibilities of the provisions on the productio
19、n (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effe
20、ctively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision abilit
21、y construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security
22、principle, the implementation of safety The production of cure. stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tou
23、gh. To further increase the production safety index assessment, strictly implement the safety production of the one vote veto and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work ar
24、rangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling For the people , the interests of the masses no matter concept understanding is not in
25、 place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of six systems construction and const
26、ruction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in across t
27、he board , and the quality 20(本题满分8分)如图，A、B两个转盘分别被平均分成三个、四个扇形，分别转动A盘、B盘各一次(转动过程中，指针保持不动，如果指针恰好指在分割线上，则重转一次，直到指针指向一个数字所在的区域为止(请用列表或画树状图的方法，求两个转盘停止后指针所指区域内的数字之和小于6的概率( 5 6 2 1 3 4 0 A B 21(本题满分8分)上海世博园开放后，前往参观的人非常多(5月中旬的一天某一时段，随机调查了部分入园游客，统计了他们进园前等候检票的时间，并绘制成如下图表(表中“1020”表示等候检票的时间大于或等于10min而小于20min，其它
28、类同( (1)这里采用的调查方式是 ? ; (2)求表中a、b、c的值，并请补全频数分布直方图; (3)在调查人数里，等候时间少于40min的有 ? 人; (4)此次调查中，中位数所在的时间段是 ? ? min( 时间分段/min 频数/人数 频率 人数 1020 8 0.200 16 2030 14 a 12 3040 10 0.250 8 4050 b 0.125 4 5060 3 0.075 合计 c 1.000 20 30 40 50 60 0 10 等候时间,min, 22(本题满分8分)如图，在梯形ABCD中，AD?BC，AB=CD=AD，BD?CD( (1)求sin?DBC的值;
29、 (2)若BC长度为4cm，求梯形ABCD的面积( D A C B strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establis- 3 - h the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong
30、, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the Hunan provincial Party and government leading cadres Interim
31、 Provisions on the work safety of a pair of (Hunan Office issued 2013 No. 5), Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair
32、 of responsibility. Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in product
33、ion enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target managem
34、ent. Adhere to the who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security principle, the implementation of safety The production of cure. stagnation supervision and leadership responsible system.
35、The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the one vote v
36、eto and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective.
37、Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling For the people , the interests of the masses no matter concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much
38、 responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of six systems construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promot
39、e the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in across the board , and the quality23(本题满分10分)某校九年级两个班各为玉树地震灾区捐款1800元(已知2班比1班人均捐款多4元，2班的人数比1班的人数少10%(请你根据上述信息，就这两个班级的“人数”或“人均捐款”提出一
40、个用分式方程解决的问题，并写出解题过程( (24(本题满分10分)图中的小方格都是边长为1的正方形，?ABC的顶点和O点都在正方形的顶点上( (1)以点O为位似中心，在方格图中将?ABC放大为原来的2倍，得到?ABC; ,(2)?ABC绕点B顺时针旋转，画出旋转后得到的?ABC，并求边90AB在旋转过程中扫过的图形面积( A O B C 25(本题满分10分)如图所示，小杨在广场上的A处正面观测一座楼房墙上的广告屏幕，测得屏幕下端D处的仰角为30，然后他正对大楼方向前进5m到达B处，又测得该屏幕上端C处的仰角为45(若该楼高为26.65m，小杨的眼睛离地面1.65m，广告屏幕的上端与楼房的顶端
41、平齐(求广告屏幕上端与下端之间的距离(3 ?1.732，结果精确到0.1m)( C D E A B strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianq
42、ingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the Hunan provincial Party and government leading cadr
43、es Interim Provisions on the work safety of a pair of (Hunan Office issued 2013 No. 5), Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibili
44、ty, a pair of responsibility. Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety
45、in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and targ
46、et management. Adhere to the who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security principle, the implementation of safety The production of cure. stagnation supervision and leadership responsibl
47、e system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the
48、one vote veto and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling For the people , the interests of the masses no matter concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicat