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1、山东省泰安市2013届九年级中考模拟数学试题(四)及答案中考数学模拟试题四 题 号 一 二 三 四 五 六 总 分 得 分 一、选择题(本大题共8小题，每小题3分，共24分) 1.,2的倒数是 【 】 11A. B. C. ,2 D. 2 ,222.2010年8月7日，甘南藏族自治州舟曲县发生特大山洪泥石流地质灾害，造成重大的经济损失。就房屋财产损失而言，总面积超过4.7万平方米，经济损失高达212000000元人民币。212000000用科学记数法应记为 【 】 7899A. 2.1210， B. 2.1210， C. 2.1210， D. 0.21210， 3. 下列运算正确的是 【 】
2、22102533236a,a,aa,a,aA( B( C( D( ()abab,(a),a4.如图，直线l?l，则为 【 】 12A(150? B(140? C(130? D(120? 第4题 第6题 xy，,2,5.二元一次方程组的解是 【 】 ,xy,0,x,0,x,2,x,1,x,1,A( B( C( D( ,y,2.y,0.y,1.y,1.,k6.如图，已知双曲线经过直角三角形OAB斜边OA的中点D，且与直角边AByk,(0)x,6相交于点C(若点A的坐标为(，4)，则?AOC的面积为 【 】 A(12 B(9 C(6 D(4 7.便民商店经营一种商品，在销售过程中，发现一周利润y(元
3、)与每件销售价x(元)之间的2关系满足，由于某种原因，价格只能15?x?22,那么一周可获得最yx,，2(20)1558大利润是 【 】 Wang Department responsible for the pro-democracy movement the Han Chang Yan Tomb. He used to work, wide exposure to four rural peasants, to publicize Japanese thought, and to establish the perimeter of the party organization Jiang
4、nan anti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Organization and served as team leader. August Zhu Xi Nan Xun Kang Wang, also has made a night attack bridge Japanese defenders, and the Eastern attack zhenze traitors was the puppet command, enem
5、y steamer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That same month, Zhu Wang achieved in deqing, Wu Kang border forces also recovered three mountains (Hui shan, Shan, dry mountain) victory. In September, the second guerrilla Brigade of the Communist P
6、arty Member Wen Yongzhi as captain of Wuxing County about 150 guns, to shake off the annexation of the Wuxing County Government, and he demanded, Zhejiang Province, Lin Jie Xu knows delegate to the West to lead. Decided to Jie Xu with the reputation of the identity of the Chinese Communist Party, Xu
7、 Jin talks with Zhu Xi, Zhu Bucheng Brigade of temperature programmed. Zhu Xi, agreed. Thus, cleaning party members into the Zhu Xi forces, such as Xu, Xu by superiors and sent to party members after all. In October, party group, Xu cleaning team leader, directly under the leadership of CPC Zhejiang
8、 Provincial Committee. Party groups actively working, restored Han chang and others from the party. Help Zhu Xi established the Department and strengthen youth service corps, the establishment of womens team, run training courses in rotation drawn the officers and men of the Regiment, group. Strengt
9、hening the political and ideological education of officers and men, advocacy and national salvation movement aim to inspire soldiers A(20. B. 1508 C. 1550 D. 1558 ABCDCD8.如图，矩形中，是的中点，点在矩形的边上沿MPAB,1AD,2ABCM,?APM运动，则的面积与点经过的路程之间的函数关系用图PxyMC象表示大致是下图中的 【 】 DP A B A. B. C. D. 第8题 二、填空题 (本大题共8小题,每小题3分,共24
10、分) 18,89.计算的结果是 。 10. (在下面两题中任选一题完成填空，若两题都做按第一小题计分) 2x,4x,6 (?)不等式的解集为 ( (?)用计算器计算:3sin25?= (保留三个有效数字). 在直角坐标系中，点P(,3，2)关于X轴对称的点Q的坐标是 . 224aa,11. 因式分解: ( 2xx,，,52012.已知方程的两个解分别为、， xx12第12题 则的值为 . xxxx，,1212y 13(如图，现有一个圆心角为90?，半径为16cm的扇形纸片， P D C 用它恰好围成一个圆锥的侧面(接缝忽略不计)，则该圆锥 底面圆的半径为 cm. A O B x 14.如图，矩
11、形ABCD的长AB,6cm，宽AD,3cm. 第13题 O是AB的中点，OP?AB，两半圆的直径分别为AO 2与OB(抛物线经过C、D两点， yax,2则图中阴影部分的面积是 cm. 15.将正方形纸片ABCD按下图所示折叠, 第15题 那么图中?HAB的度数是 . Wang Department responsible for the pro-democracy movement the Han Chang Yan Tomb. He used to work, wide exposure to four rural peasants, to publicize Japanese though
12、t, and to establish the perimeter of the party organization Jiangnan anti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Organization and served as team leader. August Zhu Xi Nan Xun Kang Wang, also has made a night attack bridge Japanese defenders, an
13、d the Eastern attack zhenze traitors was the puppet command, enemy steamer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That same month, Zhu Wang achieved in deqing, Wu Kang border forces also recovered three mountains (Hui shan, Shan, dry mountain) victo
14、ry. In September, the second guerrilla Brigade of the Communist Party Member Wen Yongzhi as captain of Wuxing County about 150 guns, to shake off the annexation of the Wuxing County Government, and he demanded, Zhejiang Province, Lin Jie Xu knows delegate to the West to lead. Decided to Jie Xu with
15、the reputation of the identity of the Chinese Communist Party, Xu Jin talks with Zhu Xi, Zhu Bucheng Brigade of temperature programmed. Zhu Xi, agreed. Thus, cleaning party members into the Zhu Xi forces, such as Xu, Xu by superiors and sent to party members after all. In October, party group, Xu cl
16、eaning team leader, directly under the leadership of CPC Zhejiang Provincial Committee. Party groups actively working, restored Han chang and others from the party. Help Zhu Xi established the Department and strengthen youth service corps, the establishment of womens team, run training courses in ro
17、tation drawn the officers and men of the Regiment, group. Strengthening the political and ideological education of officers and men, advocacy and national salvation movement aim to inspire soldiers 16(如图,是一个由若干个小正方体搭建而成的几何体的主视图与左视图,那么下列图形中可以作为该几何体的俯视图的序号是 (多填或错填得0分,少填酌情给分) 三、(本大题共3个小题，第17小题6分，第18、19
18、小题各7分，共20分) 1,10,17.计算: (),2010，,43,tan6033x1,18.解分式方程 2x,4x,22Wang Department responsible for the pro-democracy movement the Han Chang Yan Tomb. He used to work, wide exposure to four rural peasants, to publicize Japanese thought, and to establish the perimeter of the party organization Jiangnan an
19、ti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Organization and served as team leader. August Zhu Xi Nan Xun Kang Wang, also has made a night attack bridge Japanese defenders, and the Eastern attack zhenze traitors was the puppet command, enemy stea
20、mer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That same month, Zhu Wang achieved in deqing, Wu Kang border forces also recovered three mountains (Hui shan, Shan, dry mountain) victory. In September, the second guerrilla Brigade of the Communist Party M
21、ember Wen Yongzhi as captain of Wuxing County about 150 guns, to shake off the annexation of the Wuxing County Government, and he demanded, Zhejiang Province, Lin Jie Xu knows delegate to the West to lead. Decided to Jie Xu with the reputation of the identity of the Chinese Communist Party, Xu Jin t
22、alks with Zhu Xi, Zhu Bucheng Brigade of temperature programmed. Zhu Xi, agreed. Thus, cleaning party members into the Zhu Xi forces, such as Xu, Xu by superiors and sent to party members after all. In October, party group, Xu cleaning team leader, directly under the leadership of CPC Zhejiang Provi
23、ncial Committee. Party groups actively working, restored Han chang and others from the party. Help Zhu Xi established the Department and strengthen youth service corps, the establishment of womens team, run training courses in rotation drawn the officers and men of the Regiment, group. Strengthening
24、 the political and ideological education of officers and men, advocacy and national salvation movement aim to inspire soldiers 19.有3张背面相同的纸牌A，B，C，其正面分别画有三个不同的几何图形(如图)(将这3张纸牌背面朝上洗匀后摸出一张，放回洗匀后再摸出一张( (1)求出两次摸牌的所有等可能结果(用树状图或列表法求解，纸牌可用A，B，C表示); (2)求摸出两张牌面图形都是中心对称图形的纸牌的概率( B A C 正三角圆 平行四边形 形 第19题 四、(本大题共2
25、个小题，每小题各8分，共16分) 20. 统计2010年上海世博会前20天日参观人数，得到如下频数分布表和频数分布直方图(部分未完成): (1)请补全频数分布表和频数分布直方图; (2)求出日参观人数不低于22万的天数和所占的百分比; (3)利用以上信息，试估计上海世博会(会期184天)的参观总人数( 上海世博会前20天日参观人数的频数分布表 组别(万人) 组中值(万人) 频数 频率 7.5,14.5 11 5 0.25 14.5,21.5 6 0.30 21.5,28.5 25 0.30 28.5,35.5 32 3 Wang Department responsible for the p
26、ro-democracy movement the Han Chang Yan Tomb. He used to work, wide exposure to four rural peasants, to publicize Japanese thought, and to establish the perimeter of the party organization Jiangnan anti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Or
27、ganization and served as team leader. August Zhu Xi Nan Xun Kang Wang, also has made a night attack bridge Japanese defenders, and the Eastern attack zhenze traitors was the puppet command, enemy steamer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That s
28、ame month, Zhu Wang achieved in deqing, Wu Kang border forces also recovered three mountains (Hui shan, Shan, dry mountain) victory. In September, the second guerrilla Brigade of the Communist Party Member Wen Yongzhi as captain of Wuxing County about 150 guns, to shake off the annexation of the Wux
29、ing County Government, and he demanded, Zhejiang Province, Lin Jie Xu knows delegate to the West to lead. Decided to Jie Xu with the reputation of the identity of the Chinese Communist Party, Xu Jin talks with Zhu Xi, Zhu Bucheng Brigade of temperature programmed. Zhu Xi, agreed. Thus, cleaning part
30、y members into the Zhu Xi forces, such as Xu, Xu by superiors and sent to party members after all. In October, party group, Xu cleaning team leader, directly under the leadership of CPC Zhejiang Provincial Committee. Party groups actively working, restored Han chang and others from the party. Help Z
31、hu Xi established the Department and strengthen youth service corps, the establishment of womens team, run training courses in rotation drawn the officers and men of the Regiment, group. Strengthening the political and ideological education of officers and men, advocacy and national salvation moveme
32、nt aim to inspire soldiers 21.某渔场计划购买甲、乙两种鱼苗共6000尾，甲种鱼苗每尾0.5元，乙种鱼苗每尾0.8元(相关资料表明:甲、乙两种鱼苗的成活率分别为90%和95%( (1)若购买这批鱼苗共用了3600元，求甲、乙两种鱼苗各购买了多少尾, (2)若购买这批鱼苗的钱不超过4200元，应如何选购鱼苗, (3)若要使这批鱼苗的成活率不低于93%，且购买鱼苗的总费用最低，应如何选购鱼苗, 五、(本大题共2个小题，第22小题8分，第23小题9分，共17分) 22. 如图，大海中有A和B两个岛屿，为测量它们之间的距离，在海岸线PQ上点E处测得?AEP,74?，?BEQ
33、,30?;在点F处测得?AFP,60?，?BFQ,60?，EF,1km( (1)判断AB、AE的数量关系，并说明理由; (2)求两个岛屿A和B之间的距离(结果精确到0.1km)(参考数据:3?1.73， sin74?0.96，cos74?0.28，tan74?3.49，sin76?0.97，cos76?0.24) AD BAD PEFQ第22题 QBEF FABEED ABBD A AD D Wang Department responsible for the pro-democracy movement the Han Chang Yan Tomb. He used to work, wi
34、de exposure to four rural peasants, to publicize Japanese thought, and to establish the perimeter of the party organization Jiangnan anti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Organization and served as team leader. August Zhu Xi Nan Xun Kang
35、Wang, also has made a night attack bridge Japanese defenders, and the Eastern attack zhenze traitors was the puppet command, enemy steamer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That same month, Zhu Wang achieved in deqing, Wu Kang border forces als
36、o recovered three mountains (Hui shan, Shan, dry mountain) victory. In September, the second guerrilla Brigade of the Communist Party Member Wen Yongzhi as captain of Wuxing County about 150 guns, to shake off the annexation of the Wuxing County Government, and he demanded, Zhejiang Province, Lin Ji
37、e Xu knows delegate to the West to lead. Decided to Jie Xu with the reputation of the identity of the Chinese Communist Party, Xu Jin talks with Zhu Xi, Zhu Bucheng Brigade of temperature programmed. Zhu Xi, agreed. Thus, cleaning party members into the Zhu Xi forces, such as Xu, Xu by superiors and
38、 sent to party members after all. In October, party group, Xu cleaning team leader, directly under the leadership of CPC Zhejiang Provincial Committee. Party groups actively working, restored Han chang and others from the party. Help Zhu Xi established the Department and strengthen youth service cor
39、ps, the establishment of womens team, run training courses in rotation drawn the officers and men of the Regiment, group. Strengthening the political and ideological education of officers and men, advocacy and national salvation movement aim to inspire soldiers 23. 如图，圆O的直径为5，在圆O上位于直径AB的异侧有定点C和动点P，已
40、知BC:CA=4:3，点P在半圆弧AB上运动(不与A、B两点重合)，过点C作CP的垂线CD交PB的延长线于D点(1)求证:AC?CD=PC?BC; (2)当点P运动到AB弧中点时，求CD的长; 3)当点P运动到什么位置时，?PCD的面积最大,并求出这个最大面积S。 (DC ABO P第23题图第23题 Wang Department responsible for the pro-democracy movement the Han Chang Yan Tomb. He used to work, wide exposure to four rural peasants, to publici
41、ze Japanese thought, and to establish the perimeter of the party organization Jiangnan anti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Organization and served as team leader. August Zhu Xi Nan Xun Kang Wang, also has made a night attack bridge Japa
42、nese defenders, and the Eastern attack zhenze traitors was the puppet command, enemy steamer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That same month, Zhu Wang achieved in deqing, Wu Kang border forces also recovered three mountains (Hui shan, Shan, d
43、ry mountain) victory. In September, the second guerrilla Brigade of the Communist Party Member Wen Yongzhi as captain of Wuxing County about 150 guns, to shake off the annexation of the Wuxing County Government, and he demanded, Zhejiang Province, Lin Jie Xu knows delegate to the West to lead. Decid
44、ed to Jie Xu with the reputation of the identity of the Chinese Communist Party, Xu Jin talks with Zhu Xi, Zhu Bucheng Brigade of temperature programmed. Zhu Xi, agreed. Thus, cleaning party members into the Zhu Xi forces, such as Xu, Xu by superiors and sent to party members after all. In October,
45、party group, Xu cleaning team leader, directly under the leadership of CPC Zhejiang Provincial Committee. Party groups actively working, restored Han chang and others from the party. Help Zhu Xi established the Department and strengthen youth service corps, the establishment of womens team, run trai
46、ning courses in rotation drawn the officers and men of the Regiment, group. Strengthening the political and ideological education of officers and men, advocacy and national salvation movement aim to inspire soldiers 六、(本大题共2个小题，第24小题9分，第25小题10分，共19分) 24. 如图，Rt?ABO的两直角边OA、OB分别在x轴的负半轴和y轴的正半轴上，O为坐标22原点
47、，A、B两点的坐标分别为(，0)、(0，4)，抛物线经过B点，且,3yxbxc,，35顶点在直线上( x,2(1)求抛物线对应的函数关系式; (2)若?DCE是由?ABO沿x轴向右平移得到的，当四边形ABCD是菱形时，试判断点C和点D是否在该抛物线上，并说明理由; (3)若M点是CD所在直线下方该抛物线上的一个动点，过点M作MN平行于y轴交CD于点N(设点M的横坐标为t，MN的长度为l(求l与t之间的函数关系式，并求l取最大值时，点M的坐标( yBCNMAODEx第24题 Wang Department responsible for the pro-democracy movement th
48、e Han Chang Yan Tomb. He used to work, wide exposure to four rural peasants, to publicize Japanese thought, and to establish the perimeter of the party organization Jiangnan anti-Japanese guerrilla people salvation. East water village Shen Yingjie, also participated in the Organization and served as
49、 team leader. August Zhu Xi Nan Xun Kang Wang, also has made a night attack bridge Japanese defenders, and the Eastern attack zhenze traitors was the puppet command, enemy steamer and seized a large quantity of firearms, ammunition, supplies and file photos of victory. That same month, Zhu Wang achieved in deqing, Wu Ka