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1、2010年河北省中考数学试题及答案1 22010年河北省初中毕业生升学文化课考试数学试卷 一、选择题(本大题共12个小题，每小题2分，共24分(在每小题给出的四个选项中，只有一项是符合题目要求的) 1(计算3(2) 的结果是 ,A(5 B(5 C(6 D(6 ,A 2(如图1，在?ABC中，D是BC延长线上一点， ?B = 40?，?ACD = 120?，则?A等于 A(60? B(70? 120? 40? B C D C(80? D(90? 图1 3(下列计算中，正确的是 23260A( B( C( D( 2,0a，a,a93,(a),aD 4(如图2，在?ABCD中，AC平分?DAB，AB
2、 = 3， 则?ABCD的周长为 A C A(6 B(9 C(12 D(15 B 图2 ,2x(把不等式 4的解集表示在数轴上，正确的是 50 -2 2 0 A B A B C 0 -2 0 2 D C Q P R M 6(如图3，在55正方形网格中，一条圆弧经过A，B，C三点， 那么这条圆弧所在圆的圆心是 图3 A(点P B(点Q C(点R D(点M 22ab,7(化简的结果是 a,ba,b22a，ba,ba,bA( B( C( D(1 8(小悦买书需用48元钱，付款时恰好用了1元和5元的纸币共12张(设所用的1元纸币为x张，根据题意，下面所列方程正确的是 x，5(12,x),48x，5(x
3、,12),48A( B( x，12(x,5),485x，(12,x),48C( D( 9(一艘轮船在同一航线上往返于甲、乙两地(已知轮船在静水中的速度为15 km/h，水流速度为5 km/h(轮船先从甲地顺水航行到乙地，在乙地停留一段时间后，又从乙地逆水航行返回到甲地(设轮船从甲地出发后所用时间为t(h)，航行的路程为s(km)，则s与t的函数图象大致是 accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the pe
4、rsonnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false
5、, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisio
6、ns, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for
7、 grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qual
8、ification 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 vert
9、ical cylindrical steel pressure vessel steel welded specification for construction and acceptance of oil tank 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,
10、fan s s s s O O O O t t t t A B C D 10(如图4，两个正六边形的边长均为1，其中一个正六边形的一边恰在另一个正六边形的对角线上，则这个图形(阴影部分)外轮廓线的周长是 A(7 B(8 C(9 D(10 2x,211(如图5，已知抛物线的对称轴为，点A， 图4 y,x，bx，cB均在抛物线上，且AB与x轴平行，其中点A的坐标为 y x = 2 (0，3)，则点B的坐标为 A B A(2，3) B(3，2) C(3，3) D(4，3) 12(将正方体骰子(相对面上的点数分别为1和6、2和5、 O x 3和4)放置于水平桌面上，如图6-1(在图6-2中，将骰子 图
11、5 向右翻滚90?，然后在桌面上按逆时针方向旋转90?，则完成 一次变换(若骰子的初始位置为图6-1所示的状态，那么按 上述规则连续完成10次变换后，骰子朝上一面的点数是 向右翻滚90? 逆时针旋转90? 图6-1 图6-2 A(6 B(5 C(3 D(2 二、填空题(本大题共6个小题，每小题3分，共18分(把答案写在题中横线上) 13(的相反数是 ( ,5D C 14(如图7，矩形ABCD的顶点A，B在数轴上， CD = 6，点AB ,1对应的数为，则点B所对应的数为 ( A 0 图7 15(在猜一商品价格的游戏中，参与者事先不知道该商品的价格，主持人要求他从图8的四张卡片中任意拿走一张，使
12、剩下的卡片从左到右连成一个三位数，该数就是他猜的价 3 5 6 0 格(若商品的价格是360元，那么他一次就能猜中的概率图8 是 ( A 2x，mx，n,016(已知x = 1是一元二次方程的一个根，则 -ion and testing results for grade 3 GB5023689 steel welds manual methods of ultrasonic inspect-Ray lighting and quality rating of 2 GB11345-2005 steel fusion welded butt joints, welding engineering
13、-dis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323n team injuries accident penalty provisions, mutatis mutan1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and constructio-lting in serious
14、consequences, the pursuit of leadership, along with 500strative leadership of the criticism, resu100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the admini-is directly responsible for the accident responsibility, give notice of criti
15、cism and 501000, who -nel Department of the company. (3) personal injury accident occurs, the direct punishment 500accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the person98 compressor, fan-2009 mechanical equipment installation en
16、gineering construction and acceptance specification for 5 GB50275-tmospheric pressure vessel 4 GB502311997 steel welded a-T47352005 vertical cylindrical steel pressure vessel steel welded specification for construction and acceptance of oil tank 3 JB/ -98 2 GB50128-al properties test of welded plate II, mechanical equipment installation engineering 1 GB1502000 steel pres
