浙江省杭州市萧山区南片2023-2024学年八年级下学期期中数学试题
浙江
八年级
期中
2024-05-23
66次
整体难度:
容易
考查范围:
数与式、方程与不等式、统计与概率、函数、图形的性质
一、单选题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc97cd99fb9c77b31d3f19e384941cd2.png)
A.1 | B.2 | C.3 | D.4 |
【知识点】 求二次根式的值解读 利用二次根式的性质化简解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8684443809254c64330bb349b473bda5.png)
A.点![]() |
B.它的图象在第二、四象限 |
C.当![]() |
D.当![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5532d6c5dd80ac10821366d051b8b2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2284246ceb838f58115b2cb686a5a58e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67610e1ae6b228b8901d6a825aaf6cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7547b84e91a8846d41639191ebed8b15.png)
A.P | B.Q | C.M | D.N |
【知识点】 二次根式的混合运算解读 已知两点坐标求两点距离解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7c4a8558eff6427d22b6c0c855721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfbe7f95b5d89f9409ec24536da9e826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671f43c79d612c93a6d160335e86e177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848dac3d6db7c23c58f399970b3f9b18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbc29b47b83fdc5368770b7b1acb439.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05896b3fe8d48ddb7ad8396ed26e5e9b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 求一个数的算术平方根解读 无理数的大小估算解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e3950ec3b5a844b954634b7ba46b.png)
A.![]() | B.![]() ![]() | C.![]() | D.![]() ![]() |
【知识点】 一元二次方程的定义解读 根据一元二次方程根的情况求参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f184256db4c8086c749f5de56f05a677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a475d30f8a83feed0ed3c238bb24580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8294e23361c4f173437ee75cddfff760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f080980d9c3cf542230976c57ffed2.png)
A.2 | B.![]() | C.1 | D.![]() |
【知识点】 反比例函数与几何综合解读
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34c669ad6e07f9546c5f3fb6eec5c6b.png)
【知识点】 利用二次根式的性质化简解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d8250bc66dfb2de8534739edfcdab6.png)
【知识点】 一元二次方程的一般形式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef854dfcbba9b7dedc1bc52f6332b011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
【知识点】 判断反比例函数的增减性解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107536dda51b77856c4c680361c0a01c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
【知识点】 求完全平方式中的字母系数解读 公式法解一元二次方程解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc59979afc2620b046822c643391168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
三、解答题 添加题型下试题
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6ed7b7f90c8c46928efdf6422e78d3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02bc85419a13c4edb085384e84bcb556.png)
【知识点】 因式分解法解一元二次方程解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a0a54aee72aa44ce73b6308a2096c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8653af649d2a1b22f50c8529ef43136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286b55d1671bf16b83d683808fe43e70.png)
班级 | 行为规范 | 学习成绩 | 校运动会 | 艺术获奖 | 劳动卫生 |
九年级(1)班 | 10 | 10 | 6 | 10 | 7 |
九年级(5)班 | 10 | 8 | 8 | 9 | 8 |
九年级(8)班 | 9 | 10 | 9 | 6 | 9 |
(2)现要从三个班级中选送一个班级为市级先进班集体候选班,并设定如下规则:
行为规范:学习成绩:校运动会:艺术获奖:劳动卫生
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbbb2b0bac0c7fa1dff50f464e131c8.png)
【知识点】 求加权平均数解读 运用加权平均数做决策
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f748a2fff2648c65b80355004b13bbc.png)
(1)要使这两个正方形的面积之和等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76af219d50174905fcfe8f9ba3d0da2f.png)
(2)这两个正方形面积之和可能等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe07107a0f491161748a561e1da21ed.png)
【知识点】 与图形有关的问题(一元二次方程的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a712340214db8f93314c1fc05fa45dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c6e58ccbc2c37baf9706c530437b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319b9d438480f39a996f1fb9d6f98b07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(3)根据图像直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f6bcc1f9654c72a2e82e155777504b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
【问题情境】对于关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
【操作判断】项目研究小组经过讨论得到两个结论:
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae8cd75b68f412bf2b33e62258506bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
请判断两个结论的真假,并说明原因.
【实践探究】项目研究小组经过讨论编制了以下问题,请帮助解决:
方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902cb797d7cd0c25e13bd609f9ed08fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d08f6c763414e6a9bdf63728423468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18938707dd88a824c9f6d9b1870b56e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7626c207a4dc82d4d59cb520c91e49.png)
(2)设点Q是双曲线上的一点,且△QOB的面积是△AOB的面积的2倍,求点Q的坐标;
(3)在y轴上存在点P,使PA+PC最短,请直接写出点P的坐标.
试卷分析
试卷题型(共 24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 | 求二次根式的值 利用二次根式的性质化简 | |
2 | 0.85 | 一元二次方程的定义 | |
3 | 0.94 | 求众数 | |
4 | 0.85 | 由反比例函数值求自变量 判断反比例函数的增减性 判断反比例函数图象所在象限 | |
5 | 0.85 | 一元二次方程的解 | |
6 | 0.85 | 二次根式的混合运算 已知两点坐标求两点距离 | |
7 | 0.85 | 利用平均数做决策 运用方差做决策 | |
8 | 0.85 | 求一个数的算术平方根 无理数的大小估算 | |
9 | 0.85 | 一元二次方程的定义 根据一元二次方程根的情况求参数 | |
10 | 0.85 | 反比例函数与几何综合 | |
二、填空题 | |||
11 | 0.94 | 利用二次根式的性质化简 | |
12 | 0.85 | 一元二次方程的一般形式 | |
13 | 0.94 | 求中位数 | |
14 | 0.85 | 判断反比例函数的增减性 | |
15 | 0.65 | 求完全平方式中的字母系数 公式法解一元二次方程 | |
16 | 0.65 | 由反比例函数图象的对称性求点的坐标 已知两点坐标求两点距离 等腰三角形的定义 | |
三、解答题 | |||
17 | 0.85 | 二次根式的乘法 二次根式的混合运算 | 计算题 |
18 | 0.85 | 因式分解法解一元二次方程 | 计算题 |
19 | 0.85 | 通过对完全平方公式变形求值 二次根式的混合运算 已知字母的值,化简求值 | 计算题 |
20 | 0.85 | 求加权平均数 运用加权平均数做决策 | 问答题 |
21 | 0.65 | 与图形有关的问题(一元二次方程的应用) | 应用题 |
22 | 0.65 | 坐标与图形 求一次函数解析式 求反比例函数解析式 一次函数与反比例函数的交点问题 | 问答题 |
23 | 0.65 | 运用平方差公式进行运算 一元二次方程的解 一元二次方程的根与系数的关系 | 问答题 |
24 | 0.65 | 求一次函数解析式 求反比例函数解析式 最短路径问题 一次函数与反比例函数的交点问题 | 问答题 |