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1、word 1/21 2019 年某某省某某市中考数学试卷一、选择题每一小题4 分，共 48 分1 7 的相反数是A 7BC7D1 2以下给出的几何体中，主视图是矩形，俯视图是圆的是ABCD32019 年 1 月 3 日，“嫦娥四号探测器成功着陆在月球背面东经177.6 度、南纬 45.5 度附近，实现了人类首次在月球背面软着陆数字177.6 用科学记数法表示为103 1021031024如图，DEBC，BE平分ABC，假如 170，如此CBE的度数为A 20B 35C 55D 705实数a、b在数轴上的对应点的位置如下列图，如下关系式不成立的是Aa5b5B6a6bCabDab0 6下面的图形是
2、用数学家名字命名的，其中既是轴对称图形又是中心对称图形的是A赵爽弦图 B笛卡尔心形线word 2/21 C科克曲线D斐波那契螺旋线7化简+的结果是Ax2BCD8在学校的体育训练中，小杰投掷实心球的7 次成绩如统计图所示，如此这7 次成绩的中位数和平均数分别是mmmmmmmm9函数yax+a与ya0在同一坐标系中的图象可能是ABCD10如图，在菱形ABCD中，点E是BC的中点，以C为圆心、CE为半径作弧，交CD于点F，连接AE、AF假如AB6，B60，如此阴影局部的面积为A 93 B 92C189D186文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码
3、:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J
4、2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10
5、G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6
6、D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4
7、A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7
8、U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3
9、M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1文档编码:CS10J2U2P10G2 HQ6D1X8P4A6 ZJ7U7M3F3M1word 3/21 11某数学社团开展实践性研究，在大明某某门A测得历下亭C在北偏东37方向，继续向北走 105m后到达游船码头B，测得历下亭C在游船码头B的北编东53方向 请计算一下南门A与历下亭C之间的距离约为 参考数据：tan37，tan53 A 225
10、mB 275mC 300mD 315m12关于x的一元二次方程ax2+bx+0 有一个根是 1，假如二次函数yax2+bx+的图象的顶点在第一象限，设t 2a+b，如此t的取值 X围是AtB 1tCtD 1t二、填空题每一小题4 分，共 24 分 13分解因式：m24m+414如图，一个可以自由转动的转盘，被分成了6 个一样的扇形，转动转盘，转盘停止时，指针落在红色区域的概率等于15一个n边形的内角和等于720，如此n16代数式与代数式32x的和为 4，如此x17某市为提倡居民节约用水，自今年1 月 1 日起调整居民用水价格图中l1、l2分别表示去年、今年水费y元与用水量xm3之间的关系小雨家
11、去年用水量为150m3，假如今年用水量与去年一样，水费将比去年多元文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E
12、2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX
13、7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E
14、2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX
15、7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E
16、2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX
17、7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3word 4/21 18如图，在矩形纸片ABCD中，将AB沿BM翻折，使点A落在BC上的点N处，BM为折痕，连接MN；再将CD沿CE翻折，使点D恰好落在MN上的点F处，CE为折痕，连接EF并延长交B M于点P，假如AD8，AB5，如此线段PE的长等于三、解答题19 6 分计算：1+102cos
18、60+20 6 分解不等式组，并写出它的所有整数解21 6 分如图，在?ABCD中，E、F分别是AD和BC上的点，DAFBCE求证：BFDE22 8 分为提高学生的阅读兴趣，某学校建立了共享书架，并购置了一批书籍其中购置A种图书花费了3000 元，购置B种图书花费了1600 元，A种图书的单价是B种图书的1.5 倍，购置A种图书的数量比B种图书多20 本1求A和B两种图书的单价；2书店在“世界读书日进展打折促销活动，所有图书都按8 折销售学校当天购置了文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3
19、I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9
20、Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3
21、I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9
22、Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3
23、I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9
24、Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3
25、I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3word 5/21 A种图书 20 本和B种图书 25 本，共花费多少元？23 8 分如图，AB、CD是O的两条直径，过点C的O的切线交AB的延长线于点E，连接AC、BD1求证；ABDCAB；2假如B是OE的中点，AC12，求O的半径24 10 分 某学校八年级共400 名学生，为了解该年级学生的视力情况，从中随机抽取40名学生的视力数据作为样本，数据统计如下：根据数据绘制了如下的表格和统计图：等级视力x频数频率Ax4 Bx12 CxaDxbEx10 合计40 1 根据上面提供的信息，回答如下问题：
26、1统计表中的a，b；2请补全条形统计图；3根据抽样调查结果，请估计该校八年级学生视力为“E级的有多少人？4该年级学生会宣传部有2 名男生和2 名女生，现从中随机挑选2 名同学参加“防控文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7
27、R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2
28、 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7
29、R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2
30、 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7
31、R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2
32、 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3word 6/21 近视，爱眼护眼宣传活动，请用树状图法或列表法求出恰好选中“1 男 1 女的概率25 10 分如图 1，点A0，8、点B2，a在直线y 2x+b上，反比例函数
33、yx0的图象经过点B1求a和k的值；2将线段AB向右平移m个单位长度m0，得到对应线段CD，连接AC、BD如图 2，当m3 时，过D作DFx轴于点F，交反比例函数图象于点E，求的值；在线段AB运动过程中，连接BC，假如BCD是以BC为腰的等腰三形，求所有满足条件的m的值26 12 分小圆同学对图形旋转前后的线段之间、角之间的关系进展了拓展探究文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7
34、R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2
35、 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7
36、R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2
37、 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7
38、R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2
39、 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3word 7/2
40、1 一猜想探究在ABC中，ABAC，M是平面内任意一点，将线段AM绕点A按顺时针方向旋转与BAC相等的角度，得到线段AN，连接NB1如图 1，假如M是线段BC上的任意一点，请直接写出NAB与MAC的数量关系是，NB与MC的数量关系是；2如图 2，点E是AB延长线上点，假如M是CBE内部射线BD上任意一点，连接MC，1中结论是否仍然成立？假如成立，请给予证明，假如不成立，请说明理由二拓展应用如图 3，在A1B1C1中，A1B18，A1B1C160，B1A1C175，P是B1C1上的任意点，连接A1P，将A1P绕点A1按顺时针方向旋转75，得到线段A1Q，连接B1Q求线段B1Q长度的最小值27 1
41、2 分如图1，抛物线C：yax2+bx经过点A 4，0、B 1，3两点，G是其顶点，将抛物线C绕点O旋转 180，得到新的抛物线C1求抛物线C的函数解析式与顶点G的坐标；2如图 2，直线l：ykx经过点A，D是抛物线C上的一点，设D点的横坐标为mm 2，连接DO并延长，交抛物线C于点E，交直线l于点M，假如DE2EM，求m的值；3如图 3，在 2的条件下，连接AG、AB，在直线DE下方的抛物线C上是否存在点P，使得DEPGAB？假如存在，求出点P的横坐标；假如不存在，请说明理由文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH
42、4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z
43、3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH
44、4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z
45、3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH
46、4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z
47、3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH
48、4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3word 8/21 参考答案一、选择题1解：7 的相反数为7，应当选：C2解：A、主视图是圆，俯视图是圆，故A不符合题意；B、主视图是矩形，俯视图是矩形，故B不符合题意；C、主视图是三角形，俯视图是圆，故C不符合题意；D、主视图是个矩形，俯视图是圆，故D符合题意；应当选：D102应当选：B4解：DEBC，1ABC70，BE平分ABC，CBEABC35，应当选：B5解：由图可知，b0a，且|b|a|，a5b5，6a6b，ab，ab 0，关系式不成立的是选项C应当选：C文档编码
49、:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8
50、Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码:CX7R8A9Q2F3 HH4T2Z8Y1E2 ZL3I5H8K4Z3文档编码