2024年陕西省西安市莲湖区五校联考中考模拟数学试题
陕西
九年级
模拟预测
2024-05-23
254次
整体难度:
容易
考查范围:
数与式、图形的变化、图形的性质、函数、方程与不等式、统计与概率
一、单选题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据平行线的性质求角的度数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d93a3143964fda28fbac8025d618a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30dc35b2f20b368079515eb21143640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.![]() | B.![]() |
C.当![]() ![]() | D.当![]() ![]() |
【知识点】 根据两条直线的交点求不等式的解集解读
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
【知识点】 添一个条件使四边形是菱形解读
【知识点】 多边形内角和与外角和综合解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e698404fde91350c873592032ea5326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404728d0ea2699c71e674f30dd984abd.png)
【知识点】 利用菱形的性质求线段长解读 解直角三角形的相关计算解读
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430808858eef12568ee5e2ff2fb9bbc3.png)
【知识点】 求一元一次不等式的整数解解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d2d3643a9579f2c693ef86909441e2.png)
【知识点】 全等的性质和HL综合(HL) 角平分线的性质定理解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若小雅从中随机抽取一张(不放回),然后再从中随机抽取一张,请用画树状图或列表的方法,求小雅抽取的两张卡片都是水果的概率.
【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/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31962c08f3858c22a4937ef2d955dc8.png)
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【知识点】 与图形有关的问题(一元二次方程的应用)解读
目的 | 测量国旗的宽度![]() | |
工具 | 标杆![]() ![]() | |
测量过程 | 示意图 | |
相关数据 | ![]() ![]() ![]() ![]() ![]() ![]() | |
说明 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
计算结果 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ce48eafd36547782174eb304d4a003.png)
![]() | 0 | 10 | 20 | 30 | 40 | ![]() |
![]() | 2 | 2.6 | 3.2 | 3.8 | 4.4 | ![]() |
(2)当小棍露出部分为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e0868248eb1fb41145c8c6025797fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
【知识点】 求一次函数解析式解读 其他问题(一次函数的实际应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471143285bc6a1b6570dbb61bbd6ea14.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)求这40名同学成绩的平均数;(取每组数据的组中值来表示该组同学的平均成绩)
(3)若该校参加比赛的有140人,成绩20分及以上为优秀球员,并颁发奖品,估计获得奖品的人数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9210db6a6c1f265cab9d6f6b9a1c89.png)
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(2)若在抛物线的对称轴上存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d00f161c7265da982e7654ae918b066.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
(2)如图②,某小区有五栋楼,刚好围成五边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1ce9c15be3efd3dd95acccf07d9671.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e5d58280bad3589a039fc8899b080b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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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 | 0.85 | 有理数的减法运算 | |
2 | 0.94 | 判断简单几何体的三视图 | |
3 | 0.85 | 积的乘方运算 计算单项式乘多项式及求值 | |
4 | 0.85 | 根据平行线的性质求角的度数 | |
5 | 0.85 | 根据两条直线的交点求不等式的解集 | |
6 | 0.85 | 与三角形中位线有关的求解问题 | |
7 | 0.85 | 三角形的外角的定义及性质 圆周角定理 | |
8 | 0.85 | 二次函数图象的平移 | |
二、填空题 | |||
9 | 0.85 | 实数与数轴 无理数的大小估算 | |
10 | 0.94 | 添一个条件使四边形是菱形 | |
11 | 0.85 | 多边形内角和与外角和综合 | |
12 | 0.85 | 反比例函数与几何综合 根据图形面积求比例系数(解析式) 利用平行四边形的性质求解 | |
13 | 0.65 | 利用菱形的性质求线段长 解直角三角形的相关计算 | |
三、解答题 | |||
14 | 0.94 | 化简绝对值 实数的混合运算 负整数指数幂 二次根式的混合运算 | 计算题 |
15 | 0.65 | 求一元一次不等式的整数解 | 计算题 |
16 | 0.85 | 解分式方程 | 问答题 |
17 | 0.85 | 作垂线(尺规作图) | 作图题 |
18 | 0.85 | 全等的性质和HL综合(HL) 角平分线的性质定理 | 证明题 |
19 | 0.85 | 根据概率公式计算概率 列表法或树状图法求概率 | 问答题 |
20 | 0.65 | 与图形有关的问题(一元二次方程的应用) | 应用题 |
21 | 0.65 | 相似三角形应用举例 已知正切值求边长 | 应用题 |
22 | 0.65 | 求一次函数解析式 其他问题(一次函数的实际应用) | 应用题 |
23 | 0.85 | 由样本所占百分比估计总体的数量 求一组数据的平均数 求中位数 求众数 | 问答题 |
24 | 0.65 | 用勾股定理解三角形 圆周角定理 切线的性质定理 | 证明题 |
25 | 0.65 | 用勾股定理解三角形 等腰三角形的定义 特殊三角形问题(二次函数综合) | 问答题 |
26 | 0.4 | 全等的性质和SAS综合(SAS) 用勾股定理解三角形 根据正方形的性质证明 三角形内切圆与外接圆综合 | 问答题 |