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1、重点中学小升初数学模拟试题及参考答案2013重点中学小升初数学模拟试题(二) 一、填空。(每小题2分，共22分) 1、264908085读作( )，把它写成用万作单位的数是( )，省略到亿位记做( )。 511里有()个2、，0.34里有( )个0.01。 883、1时45分,( )分。 2.08千米,( )米 5.6吨,( )吨( )千克 4、填上合适的单位。 教室里黑板的面积约2( ) 雪菲力饮料瓶的容积是250( )， 一袋食盐重500( ) 学校操场的跑道长400( ) ,10.480.4815、把0.48,1.6,和按照从小到大的顺序排列: 3( ),( ),( ),( ),( )
2、、一根铁丝正好可以围成边长是12厘米的正方形，如果把它围成长是16厘米6的长方形，宽应是( )厘米。 7、在平面图上用10厘米的距离表示地面上3千米的距离，所用的比例尺是( )。 8、把5米长的钢管平均截成4段，每段是全长的( );如果把5米长的钢管按2:3的比例截成2段，较短的一段长( )米。 9、a、b是自然数(都不为0),a除以b的商是5，那么a,b的最大公约数是( )，a、b的最小公倍数是( )。 10、把72分解质因数是( )。 11、如图，把圆分成若干等份，剪拼成一个近似的长方形，已知长方形的宽是4厘米，长是( )厘米。 should be tightened, no loose,
3、 Terminal Board wiring should be one on each side, no more than two. J, shielded wire, spare wire binding order, reliable grounding. 7.7 quality standard 7.7.l cables through the cable embedded tube making use of galvanized steel pipe, tube ends without burrs, smooth. 7.7.2 pipe does not allow bendi
4、ng, bending the bend radius should be ? 4 times times the outer diameter of the tube in. 7.7.3 ellipticity of a bent tube, pipe diameter ? 60mm, not 8%, diameter 760mm, not 6%. 7.7.4 making cables buried piping application root production, growing where interface is required, only straight pipe, onl
5、y the wire port connections, welded connections are not allowed. 7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment should be carried out, install the bridge . 7.8.1.7 piping and piping, equipment and equipment or piping and othe
6、r equipment shall have sufficient expansion gap in hot situations. 7.8.1.8 metal temperature of the insulating layer (hot) = shell-wall temperature of environment temperature ? 40 ? c. 7.8.2 paint 7.8.2.l paint of equipment and pipelines should have at least a primer (red paint) and finish. 7.8.2.2
7、paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint particles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fiber glass fabric corrosion, external appearance should never show surrounded
8、by glass fiber cloth uniform, dense, painted pitch inspection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each layer thickness in accordance with design requirements. Standard 7.9 7.9 structure placement process. 1 fair-faced concrete is a concrete surface without
9、 any decoration, structure appearance quality of concrete structure that is able to display strength and aesthetic perception of quality standards. Construction technology requirements are as follows: template template Panel selection and processing require plate high strength, good toughness and 二、
10、判断对的打(?)错()。(8分) 101、不能化成有限小数。( ) 152、分子是1的分数，它的倒数一定是整数。( ) 3、三角形中两个内角的和小于第三个内角，这个三角形一定是钝角三角形。( ) 4、2007年2月29日，小明在家开生日宴会。( ) 5、能同时被2,3,5整除的最小三位数是120。( ) 6、如果两个圆的周长相等，那么这两个圆的面积也一定相等。( ) 17、分数单位是的最简真分数有5个。( ) 68、根据图可以知道: (1)平行四边形的面积与三角形的面积相等。( ) (2)梯形的面积是平行四边形的面积的一半。( ) 三、选择正确答案的序号填在题中的括号内。(20分) 、长方形有
11、( )条对称轴。 1A.1 B.2 C.4 2、把250克盐溶于1千克水中，盐占盐水重量的( ) A. 25, B.125, C.20, 73、的分子扩大3倍，要使分数大小不变，分母应加上( ) 12wall temperature of environment temperature ? 40 ? c. 7.8.2 paint 7.8.2.l paint of equipment and pipelines should have at lea-l have sufficient expansion gap in hot situations. 7.8.1.8 metal temperatu
12、re of the insulating layer (hot) = shellt shalshould be carried out, install the bridge . 7.8.1.7 piping and piping, equipment and equipment or piping and other equipmend. 7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment lloweu
13、ction, growing where interface is required, only straight pipe, only the wire port connections, welded connections are not aa bent tube, pipe diameter ? 60mm, not 8%, diameter 760mm, not 6%. 7.7.4 making cables buried piping application root prod y ofdoes not allow bending, bending the bend radius s
14、hould be ? 4 times times the outer diameter of the tube in. 7.7.3 ellipticit 7.7.l cables through the cable embedded tube making use of galvanized steel pipe, tube ends without burrs, smooth. 7.7.2 pipe re binding order, reliable grounding. 7.7 quality standardshould be tightened, no loose, Terminal
15、 Board wiring should be one on each side, no more than two. J, shielded wire, spare wiigh strength, good toughness andndards. Construction technology requirements are as follows: template template Panel selection and processing require plate hto display strength and aesthetic perception of quality s
16、tafaced concrete is a concrete surface without any decoration, structure appearance quality of concrete structure that is able -sign requirements. Standard 7.9 7.9 structure placement process. 1 fairith despection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each l
17、ayer thickness in accordance wlass fabric corrosion, external appearance should never show surrounded by glass fiber cloth uniform, dense, painted pitch inber grticles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fipaint) and fini
18、sh. 7.8.2.2 paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint pa st a primer (red2 A.12 B.24 C.36 4、下列说法不正确的是( ) A.因为圆周长C=d，所以与d成反比例。 B.长方形的周长一定，它的长和宽不成比例。 C.订小学生天地的份数与钱数成正比例。 D.三角形的面积一定，它的底和高成反比例。 5、一个整数精确到万位是36万，这个数精确前最小可能是( ) A.360600 B. 359444 C. 355
19、000 6、一件商品，降低原价的20,后，现在又提价20,，商品现在的价格( ) A.高于原价 B.等于原价 C.低于原价 、两组对边分别平行的四边形( ) 7A.正方形 B.长方形 C.平行四边形 8、( )统计图可以清楚地表示出各部分同总数之间的关系。 A.条形 B.折线 C.扇形 9、1，2，3，5都是30的( ) A(质数 B.质因数 C.约数 10、把棱长是20厘米的正方体木块，分割成棱长是4厘米的小正方体，可以分割成( )块。 A. 25 B. 125 C. 96 四、计算。(19分) 1、直接写出下列各题的得数。(4分) 3.5，2.75= 0.61.5= should be t
20、ightened, no loose, Terminal Board wiring should be one on each side, no more than two. J, shielded wire, spare wire3 binding order, reliable grounding. 7.7 quality standard 7.7.l cables through the cable embedded tube making use of galvanized steel pipe, tube ends without burrs, smooth. 7.7.2 pipe
21、does not allow bending, bending the bend radius should be ? 4 times times the outer diameter of the tube in. 7.7.3 ellipticity of a bent tube, pipe diameter ? 60mm, not 8%, diameter 760mm, not 6%. 7.7.4 making cables buried piping application root production, growing where interface is required, onl
22、y straight pipe, only the wire port connections, welded connections are not allowed. 7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment should be carried out, install the bridge . 7.8.1.7 piping and piping, equipment and equipmen
23、t or piping and other equipment shall have sufficient expansion gap in hot situations. 7.8.1.8 metal temperature of the insulating layer (hot) = shell-wall temperature of environment temperature ? 40 ? c. 7.8.2 paint 7.8.2.l paint of equipment and pipelines should have at least a primer (red paint)
24、and finish. 7.8.2.2 paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint particles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fiber glass fabric corrosion, external appearance should ne
25、ver show surrounded by glass fiber cloth uniform, dense, painted pitch inspection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each layer thickness in accordance with design requirements. Standard 7.9 7.9 structure placement process. 1 fair-faced concrete is a conc
26、rete surface without any decoration, structure appearance quality of concrete structure that is able to display strength and aesthetic perception of quality standards. Construction technology requirements are as follows: template template Panel selection and processing require plate high strength, g
27、ood toughness and11415(1,)= 320?8?25= 6.3?0.07= ,5582、下列各题，怎样简便就怎样算。(9分) 3.2-3.2(3-2.5) 8.599 3、求未知数x。(6分) paint) and finish. 7.8.2.2 paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint pa st a primer (redwall temperature of environment temperature ? 40 ?
28、c. 7.8.2 paint 7.8.2.l paint of equipment and pipelines should have at lea-l have sufficient expansion gap in hot situations. 7.8.1.8 metal temperature of the insulating layer (hot) = shellt shalshould be carried out, install the bridge . 7.8.1.7 piping and piping, equipment and equipment or piping
29、and other equipmend. 7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment lloweuction, growing where interface is required, only straight pipe, only the wire port connections, welded connections are not aa bent tube, pipe diameter
30、? 60mm, not 8%, diameter 760mm, not 6%. 7.7.4 making cables buried piping application root prod y ofdoes not allow bending, bending the bend radius should be ? 4 times times the outer diameter of the tube in. 7.7.3 ellipticit 7.7.l cables through the cable embedded tube making use of galvanized stee
31、l pipe, tube ends without burrs, smooth. 7.7.2 pipe re binding order, reliable grounding. 7.7 quality standardshould be tightened, no loose, Terminal Board wiring should be one on each side, no more than two. J, shielded wire, spare wiigh strength, good toughness andndards. Construction technology r
32、equirements are as follows: template template Panel selection and processing require plate hto display strength and aesthetic perception of quality stafaced concrete is a concrete surface without any decoration, structure appearance quality of concrete structure that is able -sign requirements. Stan
33、dard 7.9 7.9 structure placement process. 1 fairith despection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each layer thickness in accordance wlass fabric corrosion, external appearance should never show surrounded by glass fiber cloth uniform, dense, painted pitc
34、h inber grticles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fi4 五、解答下列各题。(7分) 1、求阴影部分的面积。(单位:厘米)(3分) 2、动手操作。8%, diameter 760mm, not 6%. 7.7.4 making cables buried piping application root production, growing where interface is re
35、quired, only straight pipe, only the wire port connections, welded connections are not allowed. 7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment should be carried out, install the bridge . 7.8.1.7 piping and piping, equipment a
36、nd equipment or piping and other equipment shall have sufficient expansion gap in hot situations. 7.8.1.8 metal temperature of the insulating layer (hot) = shell-wall temperature of environment temperature ? 40 ? c. 7.8.2 paint 7.8.2.l paint of equipment and pipelines should have at least a primer (
37、red paint) and finish. 7.8.2.2 paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint particles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fiber glass fabric corrosion, external appearanc
38、e should never show surrounded by glass fiber cloth uniform, dense, painted pitch inspection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each layer thickness in accordance with design requirements. Standard 7.9 7.9 structure placement process. 1 fair-faced concret
39、e is a concrete surface without any decoration, structure appearance quality of concrete structure that is able to display strength and aesthetic perception of quality standards. Construction technology requirements are as follows: template template Panel selection and processing require plate high
40、strength, good toughness and(3)8月17日0时的水位是( )。 (4)从这个监测站的记录看，水灾的情形是有所缓解还是越来越危急, 3、甲、乙两艘轮船。分别从两个码头同时出发相向而行，甲船每小时时行38海里，乙船每小时行28海里(两船行驶4小时后，还相距67海里(两个码头相距多少海里,(4分) 24、实验小学六年级有女生120人，比男生的少24人。实验小学学生共有学生3多少人, 5、小兵和小华主办学校第11期黑板报，两人合作6天可以完成。小兵做了21天后小华接着做了一天，这时共完成了黑板报的。如果小华一个人办这期黑板4报，需要多少天,(5分) -sign requi
41、rements. Standard 7.9 7.9 structure placement process. 1 fairith despection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each layer thickness in accordance wlass fabric corrosion, external appearance should never show surrounded by glass fiber cloth uniform, dense,
42、 painted pitch inber grticles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fipaint) and finish. 7.8.2.2 paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint pa st a primer (redwall temper
43、ature of environment temperature ? 40 ? c. 7.8.2 paint 7.8.2.l paint of equipment and pipelines should have at lea-l have sufficient expansion gap in hot situations. 7.8.1.8 metal temperature of the insulating layer (hot) = shellt shalshould be carried out, install the bridge . 7.8.1.7 piping and pi
44、ping, equipment and equipment or piping and other equipmend. 7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment lloweuction, growing where interface is required, only straight pipe, only the wire port connections, welded connecti
45、ons are not aa bent tube, pipe diameter ? 60mm, not 8%, diameter 760mm, not 6%. 7.7.4 making cables buried piping application root prod y ofdoes not allow bending, bending the bend radius should be ? 4 times times the outer diameter of the tube in. 7.7.3 ellipticit 7.7.l cables through the cable emb
46、edded tube making use of galvanized steel pipe, tube ends without burrs, smooth. 7.7.2 pipe re binding order, reliable grounding. 7.7 quality standardshould be tightened, no loose, Terminal Board wiring should be one on each side, no more than two. J, shielded wire, spare wiigh strength, good toughness andndards. Construction technology requirements are as follows: template template Panel selection and processing require plate hto display strength and aesthetic perception of quality stafaced concrete is a concrete surface wi