最新甘肃省天水市中考数学试卷含答案优秀名师资料.doc
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1、2011年甘肃省天水市中考数学试卷(含答案)2011年天水市初中毕业与升学学业考试(中考)试卷 数 学 合题号 一 二 三 题号 合计 总分 总分人 复核人 AB计 卷 卷 22 23 24 25 26 得分 得分 亲爱的同学三年的初中生活你已经学到了不少数学知识眼前的试卷将给你一个展示的机会相信自己:,本试卷满分为150分考试时间为120分钟, A卷(满分100分) 一、选择题(本大题共10小题,每小题4分,共40分(每小题给出的四个选项中,只有一个是正确的,请把正确的选项选出来() 1(11?天水)图中几何体的主视图是 A( B( C( D( 正面 【答案】D 2(11?天水)下列运算中,
2、计算结果正确的是 2362nn,2 n,2329336A(x?x,x B(x?x,x C(2x),4x D(x,x,x 【答案】B 3(11?天水)如果两圆的半径分别为2和1,圆心距为3,那么能反映这两圆位置关系的图是 A( B( C( D( 【答案】B 224(11?天水)多项式2a,4ab,2b分解因式的结果正确的是 222 2 2A(2(a,2ab,b) B(2a (a,2b),2b C(2(a,b) D(2a,2b) 【答案】C 5(11?天水)如图,将三角板的直角顶点放在两条平行线a、b中的直线b上,如果?1,40?,则?2的度数是 1 A(30? B(45? C(40? D(50?
3、 a b 【答案】D accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, giv
4、e notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significan
5、t near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding eng
6、ineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of alu
7、minium and its alloys 5 low temperature steel welding 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
8、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 specification for construction and acceptance of oil tank 3 JB/ T4735-1997 steel welded atmospheric pressure vessel
9、4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan 26(11?天水)在a?4a?4的空格中,任意填上“,”或“,”,在所得到的代数式中,可以构成完全平方式的概率是 111A( B( C( D(1 234【答案】A 227(11?天水)将二次函数y,x,2x,3化为y,(x,h),k的形式,结果为 2222A(y,(x,1),4 B(y,(x,1),4 C(y,(x,1),2
10、D(y,(x,1),2 【答案】D 8(11?天水)样本数据3、6、a、4、2的平均数是5,则这个样本的方差是 A(8 B(5 C(22 D(3 【答案】A 9(11?天水)一个圆锥的侧面展开图是半径为1的半圆,则该圆锥的底面半径是 113A( B( C( D(1 324【答案】B 10(11?天水)如图,有一块矩形纸片ABCD,AB,8,AD,6(将纸片折叠,使得AD边落在AB边上,折痕为AE,再将?AED沿DE向右翻折,AE与BC的交点为F,则CF的长为 A B D B D B A A F D C E C E C A(6 B(4 C(2 D(1 【答案】C 二、填空题(本大题共8小题,每小
11、题4分,共32分(只要求填写最后结果() 111(11?天水)计算8,_ ? ( 23【答案】2 22212(11?天水)若x,y,3,xy,1,则x,y,_ ? ( 【答案】7 13(11?天水)为了测量校园内一棵不可攀的树的高度,学校数学应用实践小组做了如下的探索:根据光的反射定律,利用一面镜子和皮尺,设计如图所示的测量方案:把镜子放在离树(AB)8.7m的点E处,然后观测考沿着直线BE后退到点D,这时恰好在镜子里看到树梢顶点A,再用皮尺量得DE,2.7m,观测者目高CD,1.6m,则树高AB约是_ ? (精确到0.1m) accident and the responsibility o
12、f leadership, such as concerning administrative sanctions should be dealt with by the personnel 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 sa
13、nctions against them. (4) to conceal the accident, reported without undue delay or false, 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
14、of responsible for the accident and construction team injuries accident penalty provisions, 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
15、2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for 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 stee
16、l welding 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 welde
17、d plate II, mechanical equipment installation engineering 1 GB150-98 2 GB50128-2005 vertical 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 installa
18、tion engineering construction and acceptance specification for 5 GB50275-98 compressor, fan A C D E B 【答案】5.2 14(11?天水)如图(1),在宽为20m,长为32m的矩形耕地上修建同样宽的三条道路(横向与2,求道路纵向垂直),把耕地分成若干小矩形块,作为小麦试验田国,假设试验田面积为570m宽为多少,设宽为x m,从图(2)的思考方式出发列出的方程是_ ? ( 32m 32m 2020m m (1) (2) 【答案】(32,2x)(20,x),570 2x,215(11?天水)如图,点
19、A、B在数轴上,它们所对应的数分别是,4与,且点A、B到原点3x,5A B _ ? ( 的距离相等(则x,4 0 11【答案】或2.2 52216(11?天水)计算:sin30?,tan44?tan46?,sin60?,_ ? ( 【答案】2 217(11?天水)抛物线y,x,bx,c的部分图象如图所示,若函数y,0值时,则x的取值范围y 是_ ? ( 【答案】,3,x,1 18(11?天水)如图,在梯形ABCD中,AB?CD,?BAD,90?,AB,6,对角线AC平分?BAD,,1 O 1 x 点E在AB上,且AE,2(AE,AD),点P是AC上的动点,则PE,PB的最小值是_ ? ( D
20、C 【答案】210 P 三、解答题(本大题共3小题,其中19题9分,20题6分,21题13分,共28分()解答时写出必要的文字说明及演算过程( A E B 19(11?天水)本题共9分(其中第?小题4分,第?小题5分) 2xx?(先化简(,x,1)?,再从,2、,1、0、1、2中选一个你认为适合的数作为x的值代2x,1x,1入求值( accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Dep
21、artment 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, to inform
22、 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 provisions, mutatis
23、 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 grade 3 GB
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