2024年陕西省渭南市高新区中考二模数学试题
陕西
九年级
二模
2024-05-23
147次
整体难度:
容易
考查范围:
数与式、图形的性质、函数、图形的变化、方程与不等式、统计与概率
一、单选题 添加题型下试题
A.4 | B.-4 | C.![]() | D.8 |
【知识点】 求一个数的算术平方根解读
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 平面图形旋转后所得的立体图形解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
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A.![]() | B.![]() | C.8 | D.![]() |
【知识点】 三线合一解读 与三角形中位线有关的求解问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
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x | … | ![]() | 0 | 1 | 2 | … |
y | … | 4 | 1 | ![]() | ![]() | … |
A.y随x的增大而增大 | B.当![]() ![]() |
C.图象不经过第三象限 | D.图象与x轴的交点在x轴负半轴上 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d329b7ac2123f97b1043ecfb0a2e4e29.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96dde9c4aad0536c069127df0d4b12f.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71383462104a075312b433593dd6064b.png)
【知识点】 综合提公因式和公式法分解因式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec451c43455189eae382b7709b3ae80e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
【知识点】 正多边形的内角问题解读 根据正方形的性质求角度解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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【知识点】 反比例函数与几何综合解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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三、解答题 添加题型下试题
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(2)根据你添加的条件,写出证明过程.
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(2)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)请用列表法或画树状图的方法,求学习委员和文艺委员诵读的是同一部类经典著作的概率.
【知识点】 根据概率公式计算概率解读 列表法或树状图法求概率解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dc9e9e855fae6e82d93972ff611283.png)
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【知识点】 其他问题(解直角三角形的应用)
(2)同学们从B社区返回到学校的过程中,当x为何值时,离A社区的距离为1千米?
【知识点】 行程问题(一次函数的实际应用)解读
××学校学生对我国航天事业了解程度调查报告 | |||
调查主题 | ××学校学生对我国航天事业了解程度 | ||
调查方式 | 抽样调查 | 调查对象 | ××学校学生 |
数据收集、整理与描述 | |||
调查结论 |
(1)补全条形统计图,并填空:所抽取学生对我国航天事业了解程度的中位数落在______组;
(2)若A、B、C、D四组的平均得分依次为10分、8分、6分、4分,请你计算所抽取学生对我国航天事业了解程度得分的平均数;
(3)若对该校800名学生进行全员调查,请你估计非常了解的学生有多少名?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f847612a81c3cb83cb4ae232614ec6f9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
(2)已知点P为地面上点C右侧一点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a09618d6e5947ea62836ea81e57722.png)
(3)如果小明参与本次跳绳,他到y轴的水平距离为m米,跳起的高度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
【知识点】 投球问题(实际问题与二次函数)解读
(1)如图1,点P为菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【问题探究】
(2)如图2,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【问题解决】
(3)为响应国家“乡村振兴”号召,农民王大爷拟将一块矩形土地及周边重新进行规划利用,如图3,在矩形
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试卷分析
试卷题型(共 26题)
试卷难度
知识点分析
细目表分析 导出
题号 | 难度系数 | 详细知识点 | 备注 |
一、单选题 | |||
1 | 0.94 | 求一个数的算术平方根 | |
2 | 0.85 | 平面图形旋转后所得的立体图形 | |
3 | 0.65 | 求一个角的余角 根据平行线判定与性质证明 直角三角形的两个锐角互余 | |
4 | 0.85 | 合并同类项 同底数幂相乘 积的乘方运算 运用平方差公式进行运算 | |
5 | 0.85 | 三线合一 与三角形中位线有关的求解问题 | |
6 | 0.85 | 求一次函数解析式 根据一次函数解析式判断其经过的象限 一次函数图象与坐标轴的交点问题 判断一次函数的增减性 | |
7 | 0.85 | 等边三角形的判定和性质 圆的基本概念辨析 已知圆内接四边形求角度 | |
8 | 0.65 | 二次函数图象的平移 y=ax²+bx+c的图象与性质 | |
二、填空题 | |||
9 | 0.94 | 综合提公因式和公式法分解因式 | |
10 | 0.85 | 正多边形的内角问题 根据正方形的性质求角度 | |
11 | 0.65 | 根据等边对等角求角度 用勾股定理解三角形 利用菱形的性质求线段长 | |
12 | 0.85 | 反比例函数与几何综合 | |
13 | 0.65 | 根据正方形的性质与判定证明 判断点与圆的位置关系 已知圆内接四边形求角度 | |
三、解答题 | |||
14 | 0.94 | 求一个数的立方根 实数的混合运算 运用平方差公式进行运算 特殊角三角函数值的混合运算 | 计算题 |
15 | 0.85 | 求一元一次不等式的整数解 | 计算题 |
16 | 0.65 | 分式化简求值 | 计算题 |
17 | 0.85 | 作角平分线(尺规作图) 作垂线(尺规作图) 根据等边对等角证明 | 作图题 |
18 | 0.85 | 用ASA(AAS)证明三角形全等(ASA或者AAS) 添加条件使三角形全等(全等三角形的判定综合) | 证明题 |
19 | 0.65 | 画已知图形关于某点对称的图形 求关于原点对称的点的坐标 | 作图题 |
20 | 0.85 | 根据概率公式计算概率 列表法或树状图法求概率 | 应用题 |
21 | 0.65 | 其他问题(解直角三角形的应用) | 应用题 |
22 | 0.65 | 行程问题(一次函数的实际应用) | 应用题 |
23 | 0.65 | 由样本所占百分比估计总体的数量 条形统计图和扇形统计图信息关联 求加权平均数 求中位数 | 问答题 |
24 | 0.65 | 根据矩形的性质与判定求线段长 利用弧、弦、圆心角的关系求证 半圆(直径)所对的圆周角是直角 切线的性质定理 | 证明题 |
25 | 0.65 | 投球问题(实际问题与二次函数) | 应用题 |
26 | 0.4 | 全等三角形综合问题 等腰三角形的性质和判定 用勾股定理解三角形 利用菱形的性质求线段长 | 证明题 |