最新中考数学绍兴试题优秀名师资料

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1、2010中考数学绍兴试题2010年浙江省绍兴市初中毕业生学业考试试卷 数 学 一、选择题(本大题有10小题,每小题4分,共40分.请选出每小题中一个符合题意的正确选项,不选、多选、错选,均不给分) 11.的相反数是( ) 211A.2 B.,2 C. D. ,222.如图,是由四个相同的小正方体组成的立体图形,它的俯视图是( ) 主视方向 D. C. A. B. 第2题图 3.已知?O的半径为5,弦AB的弦心距为3,则AB的长是( ) A.3 B.4 C.6 D.8 4.自上海世博会开幕以来,中国馆以其独特的造型吸引 了世人的目光.据预测,在会展期间,参观中国馆的人次数估计可达到14 900

2、000,此数用科学记数法表示是 ( ) 681.49，100.149，10A. B. 7714.9，101.49，10 C. D. 第4题图 11,5.化简,可得( ) x，1x,122x22x,A. B. C. D. 2222x,1x,1x,1x,16.甲、乙、丙、丁四位选手各10次射击成绩的平均数和方差如下表: 选 手 甲 乙 丙 丁 平均数(环) 9.2 9.2 9.2 9.2 2方差(环) 0.035 0.015 0.025 0.027 则这四人中成绩发挥最稳定的是( ) A.甲 B.乙 C.丙 D.丁 accident and the responsibility of leader

3、ship, 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 sanctions

4、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 of respo

5、nsible 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 2 GB1134

6、5-89 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 steel weldin

7、g 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 welded plate

8、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 installation eng

9、ineering construction and acceptance specification for 5 GB50275-98 compressor, fan 7.一辆汽车和一辆摩托车分别从A,B两地去同一城市,它们离A地的路程随时间变化的图象如图所示.则下列结论错误的是( ) (A.摩托车比汽车晚到1 h B. A,B两地的路程为20 km C.摩托车的速度为45 km/h D.汽车的速度为60 km/h 第7题图 8.如图,已知?ABC,分别以A,C为圆心,BC,AB长为半径画弧,两弧在直线BC上方交于点D,连结A AD,CD.则有( ) A.?ADC与?BAD相等 B.?ADC与

10、?BAD互补 B C 第8题图 C.?ADC与?ABC互补 D.?ADC与?ABC互余 4y,9.已知(x, y),(x, y),(x, y)是反比例函数的图象上的三个点,且x,x,0，11223312xx,0,则y,y,y的大小关系是( ) 3123A. y,y,y B. y,y,y C. y,y,y D. y,y,y 31221312332110.如图为某机械装置的截面图,相切的两圆?O, 1单位:mm ?O均与?O的弧AB相切,且OO?l( l为水 21211l2平线)，?O,?O的半径均为30 mm,弧AB的 12B A 最低点到l的距离为30 mm,公切线l与l间的 121距离为10

11、0 mm.则?O的半径为( ) l 1 A.70 mm B.80 mm 第10题图 C.85 mm D.100 mm 二、填空题(本大题有6小题,每小题5分,共30分.将答案填在题中横线上) 211.因式分解:=_. xy,9yABCPAB12.如图,?O是正三角形的外接圆,点在劣弧上, ，BCP，ABP =22?,则的度数为_. 2x,3,013.不等式,的解是_. 第12题图 14.根据第六届世界合唱比赛的活动细则,每个参赛的合唱团在比赛时须演唱4首歌曲.爱乐合唱团已确定了2首歌曲,还需在A,B两首歌曲中确定一首,在C,D两首歌曲中确定另一首,则同时确定A,C为参赛歌曲的概率是_. acc

12、ident 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, give notice of cr

13、iticism 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) significant near miss sh

14、ould 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 engineering-Ray l

15、ighting 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 aluminium and its

16、 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 products mecha

17、nical 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 4 GB50231-2009

18、 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan 新课标第一网不用注册免费下载: 15.做如下操作:在等腰三角形ABC中,AB= AC,AD平分?BAC, 交BC于点D.将?ABD作关于直线AD的轴对称变换,所得的 像与?ACD重合. 第15题图 对于下列结论:在同一个三角形中,等角对等边;在同一个三角?形中,等边对等角;等腰三角形的顶角平分线、底边上的中线 ?和高互相重合.由 上述操作可得出的是(将正

19、确结论的序号都填上). 16.水管的外部需要包扎,包扎时用带子缠绕在管道外部.若要使带子全部包住管道且不重叠(不考虑管道两端的情况),需计算带子的缠绕角度(指缠绕中将部分带子拉成图中所示的平面ABCD时的?,ABC,其中AB为管道侧面母线的一部分).若带子宽度为1,水管直径为2,则的余弦值为 . 第16题图 ,三、解答题(本大题有8小题,第17,20小题每小题8分,第21小题10分,第22,23小题每小题12分,第24小题14分,共80分.解答需写出必要的文字说明、演算步骤或证明过程) o2o1,17.(1)计算: |; ，,，2sin30(3)(tan45),2 a,2,1(2)先化简,再求

20、值: ,其中. 2(a，3)(a,3),a(a,6)，618.分别按下列要求解答: (1)在图1中,将?ABC先向左平移5个单位,再作关于直线AB的轴对称图形,经两次变换后得到?AB C.画出?ABC; 111111(2)在图2中,?ABC经变换得到?ABC.描述变换过程. 22212 12 C C 11 11 10 10 9 9 8 8 7 7 B A 2 26 6 A A B B 5 5 4 4 3 3 2 2 1 1 C 2 0 1 2 3 4 5 6 7 8 9 10 1211 0 1 2 3 4 5 6 7 8 9 10 1211 第18题图2 第18题图1 accident and

21、 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, give notice of criticism a

22、nd 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) significant near miss should be a

23、ttempted 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 engineering-Ray lighting a

24、nd 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 aluminium and its alloys 5

25、 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 products mechanical pro

26、perties 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 4 GB50231-2009 mechanic

27、al equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan 19.绍兴有许多优秀的旅游景点,某旅行社对5月份本社接待的外地游客来绍旅游的首选景点作了一次抽样调查,调查结果如下图表. 外地游客来绍旅游首选景点统计图 外地游客来绍旅游首选景点的频数分布表 人数,人, 700650景点 频数 频率 600鲁迅故里 650 0.325 500柯岩胜景 350 400五泄瀑布 300 0.15 300300大佛寺院 300 0.15 300

28、200千丈飞瀑 200 0.1 200曹娥庙宇 0.075 10050 其 它 50 0.025 0柯岩鲁迅五泄大佛千丈曹娥景点 其它 故里 胜景 瀑布 寺院 飞瀑 庙宇 鲁迅故里 第19题图 柯岩胜景(1)请在上述频数分布表中填写空缺的数据,并补全统计图; 五泄瀑布(2)该旅行社预计6月份接待外地来绍的游客2 600人,请你估计首选景点是鲁迅故里的人大佛寺院. 数千丈飞瀑 曹娥庙宇 其它20.如图,小敏、小亮从A,B两地观测空中C处一个气球,分 别测得仰角为30?和60?,A,B两地相距100 m.当气球 沿与BA平行地飘移10秒后到达C处时,在A处测得气 球的仰角为45?. (1)求气球的

29、高度(结果精确到0.1,); 第20题图 (2)求气球飘移的平均速度(结果保留3个有效数字). 21.在平面直角坐标系中,一次函数的图象与坐标轴围成的三角形, y 叫做此一次函数的坐标三角形.例如，图中的一次函数的图象与 B x,y轴分别交于点A,B,则?OAB为此函数的坐标三角形. 3x ,(1)求函数y,x，3的坐标三角形的三条边长; O A 4第21题图 3,(2)若函数y,x，b(b为常数)的坐标三角形周长为16, 4求此三角形面积. accident and the responsibility of leadership, such as concerning administra

30、tive 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 sanctions against them. (4) to conceal the ac

31、cident, 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 of responsible for the accident and constru

32、ction 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 2 GB11345-89 steel welds manual methods of

33、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 steel welding procedure 6 SH3525-2004 petrochem

34、ical 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 welded plate II, mechanical equipment installati

35、on 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 installation engineering construction and acceptanc

36、e specification for 5 GB50275-98 compressor, fan 新课标第一网不用注册免费下载: 22.某公司投资新建了一商场,共有商铺30间.据预测,当每间的年租金定为10万元时,可全部租出.每间的年租金每增加5 000元,少租出商铺1间.该公司要为租出的商铺每间每年 交各种费用1万元,未租出的商铺每间每年交各种费用5 000元. (1)当每间商铺的年租金定为13万元时,能租出多少间, (2)当每间商铺的年租金定为多少万元时,该公司的年收益(收益,租金,各种费用)为275万元, 23. (1) 如图1,在正方形ABCD中,点E,F分别在边BC, CD上,AE,

37、BF交于点O,?AOF,90?. 求证:BE,CF. 第23题图1 (2) 如图2,在正方形ABCD中,点E,H,F,G分别在边AB, BC,CD,DA上,EF,GH交于点O,?FOH,90?, EF ,4.求GH的长. 第23题图2 (3) 已知点E,H,F,G分别在矩形ABCD的边AB,BC,CD,DA上，EF,GH交于点O, ?FOH,90?,EF,4. 直接写出下列两题的答案: ?如图3,矩形ABCD由2个全等的正方形组成,求GH的长; ?如图4,矩形ABCD由n个全等的正方形组成,求GH的长(用n的代数式表示). 第23题图4 第23题图3 accident and the resp

38、onsibility 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, give notice of criticism and 50-100

39、 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) significant near miss should be attempted

40、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 engineering-Ray lighting and qualit

41、y 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 aluminium and its alloys 5 low temp

42、erature 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 products mechanical properties t

43、est 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 4 GB50231-2009 mechanical equipm

44、ent installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan 2224.如图,设抛物线C:, C:,C与C的交点为A, B,点A，y,ax，1,5y,ax,1，51212的坐标是,点B的横坐标是,2. (2,4)(1)求的值及点B的坐标; a(2)点D在线段AB上,过D作x轴的垂线,垂足为点H, 在DH的右侧作正三角形DHG. 记过C顶点,的 2ll直线为,且与x轴交于点N. l? 若过?DHG的顶点G,点D的坐标为 (1, 2)，求点N的横坐标;

45、l? 若与?DHG的边DG相交,求点N的横 坐标的取值范围. 第24题图 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 ac

46、cident 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 the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000

47、punishment. (5) significant 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 welde

48、d 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 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specif

49、ication for welding of aluminium 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/T4744-2

50、000 steel pressure vessel 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 at

51、mospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan 新课标第一网不用注册免费下载: 浙江省2010年初中毕业生学业考试绍兴市试卷数学参考答案 一、选择题(本大题有10小题，满分40分) 1(D 2(C 3. D 4. D 5(B 6(B 7(C 8. B 9. A 10. B 二、填空题(本大题有6小题，满分30分) 311x

52、,11( 12. 38? 13( 14. 15. 16. y(x，3)(x,3)?2,42三、解答题(本大题有8小题，满分80分) 17(本题满分8分) 解:(1) 原式, 2+1-3+1,1( 2(2) 原式, 当时,原式,( a，6aa,2,142,318(本题满分8分) (1) 如图( (2) 将?ABC先关于点A作中心对称图形,再向左平移 第18题图 2个单位,得到?ABC(变换过程不唯一) 22219(本题满分8分) (1) 0.175, 150. 图略. (2) 解:2 6000.325=845(人) ( 第20题图 20(本题满分8分) 第21题图 /解:(1) 作CD?AB,C

53、E?AB,垂足分别为D,E. ? CD ,BD?tan60?, CD ,(100，BD)?tan30?, 3?(100，BD)?tan30?,BD?tan60?, ? BD,50, CD ,50?86.6 m， ? 气球的高度约为86.6 m. /3(2) ? BD,50, AB,100, ? AD,150 , 又? AE ,CE,50, 3? DE ,150,50?63.40， ? 气球飘移的平均速度约为6.34米/秒. 21(本题满分10分) 3,解:(1) ? 直线y,x，3与x轴的交点坐标为(4,0)，与y轴交点坐标为(0,3)， 43,?函数y,x，3的坐标三角形的三条边长分别为3,

54、4,5. 434b,(2) 直线y,x，b与x轴的交点坐标为(,0)，与y轴交点坐标为(0,b)， 344532b，b，b,16当b0时,，得b =4，此时,坐标三角形面积为; 3334532,b,b,b,16当b0时，得b =,4，此时,坐标三角形面积为. 333323,综上,当函数y,x，b的坐标三角形周长为16时,面积为( 43accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Dep

55、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

56、 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

57、 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

58、50236-2002 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 qualification f

59、or 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 vertical cylind

60、rical 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, fan 22(本题满分

61、12分) 解:(1)? 30 000?5 000,6, ? 能租出24间. (2)设每间商铺的年租金增加x万元,则 xxx (30,)(10，x),(30,)1,0.5,275， 0.50.50.52 2 x ,11x，5,0， ? x,5或0.5， ? 每间商铺的年租金定为10.5万元或15万元. 23(本题满分12分) (1) 证明:如图1，? 四边形ABCD为正方形， ? AB=BC,?ABC=?BCD=90?， ? ?EAB+?AEB=90?. 第23题图1 ? ?EOB=?AOF,90?, ? ?FBC+?AEB=90?，? ?EAB=?FBC， N ? ?ABE?BCF , ? B

62、E=CF( (2) 解:如图2,过点A作AM/GH交BC于M， /过点B作BN/EF交CD于N,AM与BN交于点O， M O 则四边形AMHG和四边形BNFE均为平行四边形， ? EF=BN,GH=AM， 第23题图2 /? ?FOH,90?, AM/GH，EF/BN, ? ?NOA=90?, 故由(1)得, ?ABM?BCN, ? AM=BN， ? GH=EF=4( (3) ? 8(? 4n( 24(本题满分14分) 2解:(1)? 点A在抛物线C上，? 把点A坐标代入得 =1. a(2,4)，y,ax，1,512? 抛物线C的解析式为, y,x，2x,41设B(,2,b)， ? b,4,

63、? B(,2,4) . (2)?如图1， ? M(1, 5)，D(1, 2), 且DH?x轴，? 点M在DH上，MH=5. 过点G作GE?DH,垂足为E, 3由?DHG是正三角形,可得EG=, EH=1， ? ME,4. 设N ( x, 0 ), 则 NH,x,1, MEEG,由?MEG?MHN,得 , MHHN435,3，1? , ? , x,45x,1accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the pe

64、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, 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 co