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1、2011年中考模拟试卷 数学试题(连云港)第二次2011年中考模拟试卷 数 学 试 题 注意事项: 1(本试卷共6页，全卷满分150分，考试时间为120分钟(考生答题全部答在答题卡上，答在本试卷上无效( 2(请认真核对监考教师在答题卡上所粘贴条形码的姓名、考试证号是否与本人相符合，再将自己的姓名、准考证号用0.5毫米黑色签字笔填写在答题卡及本试卷上( 3(答选择题必须用2B铅笔将答题卡上对应的答案标号涂黑(如需改动，请用橡皮擦干净后，再选涂其他答案(答非选择题必须用0.5毫米黑色签字笔写在答题卡上的指定位置，在其他位置答题一律无效( 4( 作图必须用2B铅笔作答，并请加黑加粗，描写清楚( 一、
2、选择题(下列各题给出的四个选项中，只有一个是正确的(每小题3分，满分24分) 1(南京建邺),5的相反数是( ? )( 11A( B(, C(5 D(,5 552(南京白下)下列计算正确的是(?) 3253232 6 32A(a，a,a B(a,a,a C(a?a,aD(a?a,a 3(2010重庆市潼南县)不等式2x+3?5的解集在数轴上表示正确的是( ) 4(南京白下)南京地铁4号线将于年内开工，全长约33200m，将33200用科学记数法表示应为(?) 4325A(3.3210 B(33.210 C(33210 D(0.33210 5(2010江苏扬州)已经?O、?O的半径分别为5cm,
3、、8cm，且他们的圆心距为8cm，则?O121与?O的位置关系为( ) 2A(内含 B(相交 C(外切 D(外离 6(2007年巴中)李明为好友制作了一个正方体礼品盒(如图)，六个面上各有一字，连起来就是“预祝中考成功”，其中“预”的对面是“中”， “成”的对面是“功”，则它的平面展开图可能是( ) 预 预 预 祝 预 祝 中 考 成 中 考 祝 成 考 功 预 祝 中 成 祝 功 成 功 中 考 成 功 ,( ,( ,( ,( 图1 risk managers with two account manager to deal with the above key. Section I of
4、chapter III risk management requirements pre-loan investigation pre-loan investigation should double handle. Pre-loan investigation dominated by field investigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related personnel, and so on. Inte
5、rview system of Banks strict application of the system of personal credit business interview. Investigators should work with borrowers, to the repayment or the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification of its authenticity and
6、its rights and obligations in the credit business, retain these signed transcript of the interview, from the first step to prevent false loans and other business risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clearly the amount, purpose,
7、duration and other information. Investigators should follow the practice for information collection and verification of data authenticity it carefully, and keep copies, photocopies must be checked against the original agreement, effectively preventing borrowers using false information to apply for c
8、redit. Income and occupation, and other key information to verify authenticity investigators should carefully verifying the borrowers income. To income as the main source of repayment, subject to proof of income is required, but should also audit payroll flowing water, and staff than the peer confir
9、med the authenticity of the same type; operating income as the main source of repayment, and should refer to the working capital loans required to verify real incomes, accuracy; guard no ability to repay or guarantee of the ability of the borrower, guarantor to obtain credit. Given that some product
10、s for an object to have a specific professional restrictions k k12和C，设点P在7(济南模拟)如图两个反比例函数y,和y,在第一象限内的图象依次是C12xxC上，PC?x轴于点C，交C于点A，PD?y轴于点D，交C于点B，则四边形PAOB的面积122为 ( ) k1A A. k，k B. k,k C. k?k D. 121212k2y O D C B O t (第13题) 第8题 8.汽车运动速度V和时间t的图象如图所示，则汽车行驶路程S与时间t的图象可能是 y y y y t t t t O O O O A. B. C. D.
11、 二、填空题(每小题3分，满分30分) 9(南京建邺)数据3，5，5，,1，1，1，1的众数是 ? ( 10(点P(,3，4)到坐标原点O的距离是 ? ( 211(南京建邺)分解因式的结果是 ? ( xx,，6912(写出图象经过点(1，,1)的一个函数关系式 ? ( 13(南京建邺)如图，AB是?O直径，且AB=4cm，弦CD?AB，?COB=45?，则CD为 ? cm( (上海)如图?ABC中，点D在边AB上，满足?ACD,?ABC，若AC,4，AD,2，则DB, ? ( 1415(若菱形两条对角线的长分别为6和10，则这个菱形的周长是 ? ( 16(已知小明同学身高1.5米，经太阳光照射
12、，在地面的影长为2米，若此时测得一塔在同一地面的影长为60米，则塔高应为 ? 米( 17(呼和浩特)如图是抛物线形拱桥，当水面在n时，拱顶离水面2米，水面宽4米(若水面下降1米，则水面宽度将增加 ? 米( 18(10北京真题)下图为手的示意图，在各个手指间标记字母A、B、C、D(请你按图中箭头所指方向(即A?B?C?D?C?B?A?B?C?的方式)从开始数连续的正整数1、2、3、4，当字母C第2011次出现时，恰好数到的数是 ? ( B C AD A D 2 n BC4 图2 图? risk managers with two account manager to deal with the
13、above key. Section I of chapter III risk management requirements pre-loan investigation pre-loan investigation should double handle. Pre-loan investigation dominated by field investigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related pe
14、rsonnel, and so on. Interview system of Banks strict application of the system of personal credit business interview. Investigators should work with borrowers, to the repayment or the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification
15、of its authenticity and its rights and obligations in the credit business, retain these signed transcript of the interview, from the first step to prevent false loans and other business risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clear
16、ly the amount, purpose, duration and other information. Investigators should follow the practice for information collection and verification of data authenticity it carefully, and keep copies, photocopies must be checked against the original agreement, effectively preventing borrowers using false in
17、formation to apply for credit. Income and occupation, and other key information to verify authenticity investigators should carefully verifying the borrowers income. To income as the main source of repayment, subject to proof of income is required, but should also audit payroll flowing water, and st
18、aff than the peer confirmed the authenticity of the same type; operating income as the main source of repayment, and should refer to the working capital loans required to verify real incomes, accuracy; guard no ability to repay or guarantee of the ability of the borrower, guarantor to obtain credit.
19、 Given that some products for an object to have a specific professional restrictions 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12分)计算或化简 x，2130，4，, ,sin30? (2)解方程: , ,0 (1)22x(x,1)x,1220.(本题满分6分)先化简，再求值:(x，y),2 x (x，y) ， 其中x,2，y,3 221. (南京白下)(本题满分6分)已知二次函数的关系式为y,x，6x，8. (1)求这个二
20、次函数图象的顶点坐标; (2)当x的取值范围是_时，y随x的增大而减小. 22(本小题满分9分)AB是?O的直径，BD是?O的弦，延长BD到点C，使DC,BD，连接AC，A 过点D作DE?AC，垂足为E( (1)试判断的形状，并说明理由; O 2)DE能否与?O相切，为什么, (E D B C risk managers with two account manager to deal with the above key. Section I of chapter III risk management requirements pre-lo第3页 an investigation pre-
21、loan investigation should double handle. Pre-loan investigation dominated by field investigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related personnel, and so on. Interview system of Banks strict application of the system of personal c
22、redit business interview. Investigators should work with borrowers, to the repayment or the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification of its authenticity and its rights and obligations in the credit business, retain these sign
23、ed transcript of the interview, from the first step to prevent false loans and other business risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clearly the amount, purpose, duration and other information. Investigators should follow the prac
24、tice for information collection and verification of data authenticity it carefully, and keep copies, photocopies must be checked against the original agreement, effectively preventing borrowers using false information to apply for credit. Income and occupation, and other key information to verify au
25、thenticity investigators should carefully verifying the borrowers income. To income as the main source of repayment, subject to proof of income is required, but should also audit payroll flowing water, and staff than the peer confirmed the authenticity of the same type; operating income as the main
26、source of repayment, and should refer to the working capital loans required to verify real incomes, accuracy; guard no ability to repay or guarantee of the ability of the borrower, guarantor to obtain credit. Given that some products for an object to have a specific professional restrictions23(本小题满分
27、9分)从徐州开往新浦的K8399次火车，途中停靠邳州，新沂，东海三个站，若A、B两名互不相识的旅客都从徐州站上车(请用画树状图或列表的方法，求这两人中途在同一车站下车的概率(不含新浦站)( 24( (11济南模拟)(本小题满分10分) 为了提高教学质量，我市实施了“六模块建构式”课堂教学，某中学对九年级学生进行了一次“你最喜欢的课堂教学方式”的问卷调查(根据收回的问卷，学校绘制了如下图表，请你根据图表中提供的信息，解答下列问题( (1)请把三个图表中的空缺部分都补充完整; (2)你最喜欢以上哪一种教学方式或另外的教学方式，请提出你的建议，并简要说明理由(字数在20字以内)( 编号 教学方式 最
28、喜欢的频数 频率 1 教师讲，学生听 20 0.10 2 教师提出问题，学生探索思考 ? ? 3 学生自行阅读教材，独立思考 30 ? 4 分组讨论，解决问题 ? 0.25 10% 编号1 25% 编号4 risk managers with two account manager to deal with the above key. Section I of chapter III risk management requirements pre-loan investigation pre-loan investigation should double handle. Pre-loan
29、 investigation dominated by field investigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related personnel, and so on. Interview system of Banks strict application of the system of personal credit business interview. Investigators should wo
30、rk with borrowers, to the repayment or the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification of its authenticity and its rights and obligations in the credit business, retain these signed transcript of the interview, from the first st
31、ep to prevent false loans and other business risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clearly the amount, purpose, duration and other information. Investigators should follow the practice for information collection and verification
32、of data authenticity it carefully, and keep copies, photocopies must be checked against the original agreement, effectively preventing borrowers using false information to apply for credit. Income and occupation, and other key information to verify authenticity investigators should carefully verifyi
33、ng the borrowers income. To income as the main source of repayment, subject to proof of income is required, but should also audit payroll flowing water, and staff than the peer confirmed the authenticity of the same type; operating income as the main source of repayment, and should refer to the work
34、ing capital loans required to verify real incomes, accuracy; guard no ability to repay or guarantee of the ability of the borrower, guarantor to obtain credit. Given that some products for an object to have a specific professional restrictions 25(安徽)(本小题满分10分)连云港市花果山风景区为了提高某景点的安全性，决定将到达该景点的步行台阶进行改善，
35、把倾角由45?减至30?，已知原台阶坡面AB的长为10m(BC所在地面为水平面)( (1)改善后的台阶坡面会加长多少, (2)改善后的台阶多占多长一段水平地面,(结果精确到0.1m，参考数据:2 ?1.41，3 ?1.73) A 45 30 C45 B 26(南京建邺)(本小题满分10分) 操作:小明准备制作棱长为1cm的正方体纸盒，现选用一些废弃的圆形纸片进行如下设计: C 说明: B 、B、C, 方案一图形中的圆过点A 方案二直角三角形的两直角边与 展开图左下角的正方形边重合斜A 边经过两个正方形的顶点( 方案一 方案二 纸片被利用的面积纸片利用率= 100% 纸片的总面积发现:(1)方案
36、一中的点A、B恰好为该圆一直径的两个端点( 你认为小明的这个发现是否正确，请说明理由( (2)小明通过计算，发现方案一中纸片的利用率仅约为38.2%( 请帮忙计算方案二的利用率，并写出求解过程，比较哪种方案中纸片的利用率高( risk managers with two account manager to deal with the above key. Section I of chapter III risk management requirements pre-lo第5页 an investigation pre-loan investigation should double ha
37、ndle. Pre-loan investigation dominated by field investigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related personnel, and so on. Interview system of Banks strict application of the system of personal credit business interview. Investiga
38、tors should work with borrowers, to the repayment or the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification of its authenticity and its rights and obligations in the credit business, retain these signed transcript of the interview, fro
39、m the first step to prevent false loans and other business risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clearly the amount, purpose, duration and other information. Investigators should follow the practice for information collection and
40、 verification of data authenticity it carefully, and keep copies, photocopies must be checked against the original agreement, effectively preventing borrowers using false information to apply for credit. Income and occupation, and other key information to verify authenticity investigators should car
41、efully verifying the borrowers income. To income as the main source of repayment, subject to proof of income is required, but should also audit payroll flowing water, and staff than the peer confirmed the authenticity of the same type; operating income as the main source of repayment, and should ref
42、er to the working capital loans required to verify real incomes, accuracy; guard no ability to repay or guarantee of the ability of the borrower, guarantor to obtain credit. Given that some products for an object to have a specific professional restrictions27(11济南模拟)(本小题满分12分) 北京时间2011年3月11日13时46分，日
43、本发生9.0级特大地震，某日资公司为筹集善款，对其日本原产品进行大幅度销售，有A型产品40件，B型产品60件，分配给下属甲、乙两个商店销售，其中70件给甲店，30件给乙店，且都能卖完(两商店销售这两种产品每件的利润(元)如下表: A型利润 B型利润 甲店 200 170 乙店 160 150 (1)设分配给甲店A型产品x件，这家公司卖出这100件产品的总利润为W(元)，求W关于x的函数关系式，并求出x的取值范围; (2)若公司要求总利润不低于17560元，说明有多少种不同分配方案，并将各种方案设计出来; (3)为了促销，公司决定仅对甲店A型产品让利销售，每件让利a元，但让利后A型产品的每件利润
44、仍高于甲店B型产品的每件利润(甲店的B型产品以及乙店的A，B型产品的每件利润不变，问该公司又如何设计分配方案，使总利润达到最大, risk managers with two account manager to deal with the above key. Section I of chapter III risk management requirements pre-loan investigation pre-loan investigation should double handle. Pre-loan investigation dominated by field inve
45、stigations on the ground, while utilizing credit enquiries, telephone enquiries, bank information system query-related personnel, and so on. Interview system of Banks strict application of the system of personal credit business interview. Investigators should work with borrowers, to the repayment or
46、 the guarantor credit business, such as parties and the spouse of confirmed acts such as loans, guarantees, verification of its authenticity and its rights and obligations in the credit business, retain these signed transcript of the interview, from the first step to prevent false loans and other bu
47、siness risks. Investigator should retain the borrower sign a personal loan application, loan applications should be clearly the amount, purpose, duration and other information. Investigators should follow the practice for information collection and verification of data authenticity it carefully, and
48、 keep copies, photocopies must be checked against the original agreement, effectively preventing borrowers using false information to apply for credit. Income and occupation, and other key information to verify authenticity investigators should carefully verifying the borrowers income. To income as the main source of repayment, subject to proof of income is required, but should also audit payroll flowing water, and staff than the peer confirmed the authenticity of the same type; operating income as the main source of repayment, and should refer to the working capital loans required to verify