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leadershipintentionandmeaningintothetext.Althoughhiseyesnowwriteonlyarelativelysmallnumberofmaterials,butalsoquitedifficult,eventoamoldingmaterialherselfseemsnotverysatisfiedwiththequalityofserviceneedstobeenhanced.Threeisalotofworktoimplementpassive,activeandadvanced.Mostcontractorsdomattersassignedbytheleadership,workisoftenintheorders,toimplementthetask,donotwanttolead,notwanttothinkahead,planahead,andtoseektheleadership;seekdeepintotheresearch,provideinformationgoodstaffseek.Especiallyinthewritingprocessofmaterial,itencounteredmuch,timetight,heavybetweentherequirements.Andintheencounterthetediouswork,complexthings,sometimestakethemethodofescape,thatbridgetheboattothebridgestraight,nottheirownforcepleasefindcountermeasures,buttowaitfortheself,thelackofaspiritofhardresearch.Two,thecauseoftheproblemThroughtheanalysis,Ifeelthattherearemanyreasonsfortheseproblems.Oneideaisobsolete.Thefailuretodosystemresearchontheessenceofreadingtheoriginal,palmandmasterthetheoryofqualityreadwithoutthoroughunderstanding,hasnotbeeneffectively图形与坐标(时间：45分钟总分：100分)题号一二三总分合分人复分人得分一、选择题(每小题3分，共30分)1．在下列所给出的坐标的点中，在第二象限的是（）A．(2，3)B．(－2，3)C．(－2，－3)D．(2，－3)2．若点P在第三象限，且点P到x轴、y轴的距离分别为4，3，则点P的坐标为（）A．(4，－3)B．(－4，3)C．(－3，4)D．(－3，－4)3．如图，若在象棋盘上建立直角坐标系，使“帥”位于点(－1，－2)，“馬”位于点(2，－2)，则“兵”位于点（）A．(－1，1)B．(－2，－1)C．(－3，1)D．(1，－2)4．在平面直角坐标系中，将点(x，y)向左平移a个单位长度，再向下平移b个单位长度，则平移后得到的点是（）A．(x＋a，y＋b)B．(x＋a，y－b)C．(x－a，y＋b)D．(x－a，y－b)5．如果由点A测得B点在北偏东15°的方向，那么由点B测点A的方向为（）A．北偏东15°B．北偏西75°C．南偏西15°D．南偏东75°6．已知点P(2a＋4，3a－6)在第四象限，那么a的取值范围是（）A．－2＜a＜3B．a＜－2C．a＞3D．－2＜a＜27．如图所示，在坐标系中，∠AOB＝150°，OA＝OB＝2，则点A的坐标是（）A．(－1，3)B．(－3，1)C．(－1，1)D．(－3，－3)8．将△ABC的三个顶点的纵坐标乘以－1，横坐标不变，则所得图形与原图形的关系是（）A．关于x轴对称B．关于y轴对称C．关于原点对称D．原图形向y轴负方向平移1个单位9．在一次“寻宝”中找到了如图所示的两个标志点A(2，3)，B(4，1)，A，B两点到“宝藏”点的距离都是10，则“宝藏”点的坐标是（）A．(1，0)leadershipintentionandmeaningintothetext.Althoughhiseyesnowwriteonlyarelativelysmallnumberofmaterials,butalsoquitedifficult,eventoamoldingmaterialherselfseemsnotverysatisfiedwiththequalityofserviceneedstobeenhanced.Threeisalotofworktoimplementpassive,activeandadvanced.Mostcontractorsdomattersassignedbytheleadership,workisoftenintheorders,toimplementthetask,donotwanttolead,notwanttothinkahead,planahead,andtoseektheleadership;seekdeepintotheresearch,provideinformationgoodstaffseek.Especiallyinthewritingprocessofmaterial,itencounteredmuch,timetight,heavybetweentherequirements.Andintheencounterthetediouswork,complexthings,sometimestakethemethodofescape,thatbridgetheboattothebridgestraight,nottheirownforcepleasefindcountermeasures,buttowaitfortheself,thelackofaspiritofhardresearch.Two,thecauseoftheproblemThroughtheanalysis,Ifeelthattherearemanyreasonsfortheseproblems.Oneideaisobsolete.Thefailuretodosystemresearchontheessenceofreadingtheoriginal,palmandmasterthetheoryofqualityreadwithoutthoroughunderstanding,hasnotbeeneffectively2B．(5，4)C．(1，0)或(5，4)D．(0，1)或(4，5)10．下列说法中，正确的个数是（）①在平面内，两条互相垂直的数轴，组成了平面直角坐标系；②如果点A到x轴和y轴的距离分别为3，4，那么点A的坐标为(4，3)；③如果点A(a，b)位于第四象限，那么ab＜0；④如果点A的坐标为(a，b)，那么点A到坐标原点的距离为a2＋b2；⑤如果点A(a＋3，2a＋4)在y轴上，那么点P(2a＋4，a＋3)的坐标是(0，－2)．A．2个B．3个C．4个D．5个二、填空题(每小题3分，共18分)11．(南平中考)写出一个平面直角坐标系中第三象限内点的坐标：________________________．12．(黔西南中考)点P(2，3)关于x轴的对称点的坐标为________．13．(徐州中考)在平面直角坐标系中，将点A(4，2)绕原点按逆时针方向旋转90°后，其对应点A′的坐标为________．14．如图，将线段AB平移，使B点到C点，则平移后A点的坐标为________．15．(宿迁中考)如图，在平面直角坐标系xOy中，若菱形ABCD的顶点A，B的坐标分别为(－3，0)，(2，0)，点D在y轴上，则点C的坐标是________．16．如图，已知正方形ABCD，顶点A(1，3)、B(1，1)、C(3，1)，规定“把正方形ABCD先沿x轴翻折，再向左平移1个单位”为一次交换，如此这样，连续经过2016次变换后，正方形ABCD的对角线交点M的坐标变为________．三、解答题(共52分)17．(8分)如图所示，正方形ABCD的边长为4，AD∥y轴，D(1，－1)．(1)写出A，B，C三个顶点的坐标；leadershipintentionandmeaningintothetext.Althoughhiseyesnowwriteonlyarelativelysmallnumberofmaterials,butalsoquitedifficult,eventoamoldingmaterialherselfseemsnotverysatisfiedwiththequalityofserviceneedstobeenhanced.Threeisalotofworktoimplementpassive,activeandadvanced.Mostcontractorsdomattersassignedbytheleadership,workisoftenintheorders,toimplementthetask,donotwanttolead,notwanttothinkahead,planahead,andtoseektheleadership;seekdeepintotheresearch,provideinformationgoodstaffseek.Especiallyinthewritingprocessofmaterial,itencounteredmuch,timetight,heavybetweentherequirements.Andintheencounterthetediouswork,complexthings,sometimestakethemethodofescape,thatbridgetheboattothebridgestraight,nottheirownforcepleasefindcountermeasures,buttowaitfortheself,thelackofaspiritofhardresearch.Two,thecauseoftheproblemThroughtheanalysis,Ifeelthattherearemanyreasonsfortheseproblems.Oneideaisobsolete.Thefailuretodosystemresearchontheessenceofreadingtheoriginal,palmandmasterthetheoryofqualityreadwithoutthoroughunderstanding,hasnotbeeneffectively3(2)写出BC中点P的坐标．18．(10分)如图，这是某市部分简图，请以火车站为坐标原点建立平面直角坐标系，并分别写出各地的坐标．19．(10分)点P(x，y)关于y轴的对称点是P1点，将点P1向上平移3个单位，再向左平移5个单位后落到点P2的位置．(1)写出点P1，P2的坐标(用x，y来表示)；(2)如果点P2的横坐标和纵坐标分别与点P的纵坐标和横坐标相同，试求P的坐标．20．(12分)在如图所示的网格(每个小正方形的边长为1)中，△ABC的顶点A的坐标为(－2，1)，顶点B的坐标为(－1，2)．(1)在网格图中画出两条坐标轴，并标出坐标原点；(2)作△A′B′C′关于x轴对称的图形△A″B″C″；(3)求出BB″的长．21．(12分)△ABC在平面直角坐标系中的位置如图所示．leadershipintentionandmeaningintothetext.Althoughhiseyesnowwriteonlyarelativelysmallnumberofmateria