广东省云浮市罗定市2022-2023学年八年级下学期期末数学试题
广东
八年级
期末
2023-08-25
302次
整体难度:
容易
考查范围:
数与式、函数、统计与概率、图形的性质
一、单选题 添加题型下试题
A.1 | B.2 | C.3 | D.4 |
【知识点】 已知 平均数求未知数据的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741ea7b92508b200082ad0e9fee7ee46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 利用菱形的性质求角度解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ac0427c09d4ec58847ef56169d8370.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/10/9541b081-03a4-4606-8e42-9ca5c3775010.jpg?resizew=125)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 由直线与坐标轴的交点求不等式的解集解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
【知识点】 判断能否构成平行四边形解读
同学 | 甲 | 乙 | 丙 | 丁 |
平均数 | 94 | 96 | 96 | 95 |
方差 | 4 | 4 | 2.4 | 2.4 |
A.甲 | B.乙 | C.丙 | D.丁 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/11/2ee35ede-49db-46f4-a2f7-1d861680a610.png?resizew=275)
A.他们出发80分钟后到达服务区 | B.他们在服务区休息了20分钟 |
C.小明家距离白云山350千米 | D.在服务区休息前的行驶速度比休息后快 |
【知识点】 从函数的图象获取信息解读
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/10/4700d1d9-3e85-4bc0-aef6-2d63f3f478e7.png?resizew=233)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259bd6d2a4a88e4b92c7a41c2b02d74d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb0761c560f504cca1a7a39f36fff8e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463742c5f9c442d712f183d7430f4134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
【知识点】 比较一次函数值的大小解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/28/23365c73-3218-45de-917e-500ae9c83e96.png?resizew=325)
三、解答题 添加题型下试题
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d6d13faa296c25916ef82294637d95.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730a54a4b5ccfdec1f6c0a058f9281ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989c75a3fd02e4971cab421c88de92f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60734e6196fcdb7a726791a3b80a4d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf1a2d369203cbb461d38388e44ea08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/10/45edb17d-92cc-4581-87eb-f0c570f89489.jpg?resizew=160)
【知识点】 利用平行四边形的性质求解解读
环数(环) | 6 | 7 | 8 | 9 |
人数 | 2 | 5 | 2 | 1 |
(2)该小组的平均成绩为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60ecd5f53b3469726c8cb09e86ff20b.png)
(1)判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de012bf98f137d6db8975496fddd3ba.png)
(2)该函数的图象不经过第______象限,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377f5c10cf527c87ab06bff61384f7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e34f3fbb1adf23cf81d7005f4387a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0326093e89752c75615426f0309fe7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
【知识点】 勾股定理 矩形的判定与性质综合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de96374212b9a5df820d78d10e7d1291.png)
时间 | 0 | 5 | 10 | 15 | 20 |
温度 | 25 | 40 | 55 | 70 | 85 |
(2)许你根据表中的数据及画出的图象,确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)若温度恰好达到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598a32279830e7d8bbd0422ce08aee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f2665526efab6fdd59a4fe1bfe4e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/14/c918664b-0f92-413b-b155-6bce25bd5084.png?resizew=190)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b0b077bfd3700e78db35bea761ae29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e6566f928583bb3cdbcf37b5ab3ffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b0b077bfd3700e78db35bea761ae29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859bf9cae1ba707d53066042073251f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18e9b80fdeaa8bd3cf97b3c214448f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/66a4782a-d4d2-4680-a078-b3d087870ca9.png?resizew=156)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)分别求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173bc7a36757d77f01213411edd25241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(3)是否存在点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1470425447b3997a387908aa9e89de15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173bc7a36757d77f01213411edd25241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
【知识点】 坐标与图形 求一次函数解析式解读 求直线围成的图形面积
试卷分析
试卷题型(共 23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 | 最简二次根式的判断 | |
2 | 0.94 | 正比例函数的定义 | |
3 | 0.94 | 已知 平均数求未知数据的值 | |
4 | 0.94 | 用勾股定理解三角形 | |
5 | 0.85 | 利用菱形的性质求角度 | |
6 | 0.94 | 由直线与坐标轴的交点求不等式的解集 | |
7 | 0.85 | 判断能否构成平行四边形 | |
8 | 0.94 | 利用平均数做决策 运用方差做决策 | |
9 | 0.65 | 从函数的图象获取信息 | |
10 | 0.85 | 勾股定理与折叠问题 矩形与折叠问题 | |
二、填空题 | |||
11 | 0.85 | 二次根式的乘法 | |
12 | 0.85 | 求中位数 | |
13 | 0.85 | 利用平行四边形的性质求解 与三角形中位线有关的求解问题 | |
14 | 0.85 | 比较一次函数值的大小 | |
15 | 0.65 | 动点问题的函数图象 用勾股定理解三角形 利用菱形的性质求线段长 | |
三、解答题 | |||
16 | 0.85 | 运用完全平方公式进行运算 利用二次根式的性质化简 二次根式的混合运算 | 计算题 |
17 | 0.65 | 利用平行四边形的性质求解 | 问答题 |
18 | 0.85 | 求一组数据的平均数 求众数 | 问答题 |
19 | 0.65 | 根据一次函数解析式判断其经过的象限 判断一次函数的增减性 | 问答题 |
20 | 0.65 | 勾股定理 矩形的判定与性质综合 | 证明题 |
21 | 0.65 | 用描点法画函数图象 求一次函数解析式 其他问题(一次函数的实际应用) | 作图题 |
22 | 0.65 | 用勾股定理解三角形 利用平行四边形的性质证明 证明四边形是菱形 根据菱形的性质与判定求线段长 | 证明题 |
23 | 0.65 | 坐标与图形 求一次函数解析式 求直线围成的图形面积 | 问答题 |