安徽省六安市汇文中学2023-2024学年八年级上学期第二次月考数学试题
安徽
八年级
阶段练习
2024-05-15
40次
整体难度:
容易
考查范围:
函数、图形的性质、方程与不等式、图形的变化
一、单选题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7991d398026010e16b024ae8bdd4d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b26990738bb202266520a40b96a6ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9dffb1c2f1f3c9e116aa9e4bddf967.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 用SSS直接证明三角形全等(SSS)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd6f4250ca6b1b9bce234a01f00d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689ff84e2d7f52c7446ef789a54557da.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() ![]() |
【知识点】 根据三角形中线求长度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
【知识点】 举反例
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bef89ac0dd5ae192cd9c7222d5041b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deece9a4d9301fb6028aa1f81a11c23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e7106619c08f2bcc1d21f846e8a0de.png)
A.15° | B.20° | C.25° | D.30° |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d90443d2270191f10766ebf033652e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e072745f38312b26d1361e97fd0e93.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据一次函数解析式判断其经过的象限解读
A.在这段时间内,甲的平均速度为![]() |
B.在这段时间内,乙的平均速度为![]() |
C.在这段时间内,甲休息了![]() |
D.出发![]() |
【知识点】 用图象表示变量间的关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa5088fedf996af3d7c50a39bdaae73.png)
A.2个 | B.3个 | C.4个 | D.5个 |
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e6c6d519f880597f0b7720e0ff0aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634cfbfa72c819314962cc08fc29ac15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e35f76e01c3979ae5987f7729f9856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
【知识点】 根据一次函数增减性求参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b5062be5cf27ae8089ad0c25d1b7c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e319ce030f7fe57a9777c7b8f583cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ba320088e37f65084b65e42ec3caf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db39f24a0c63b154ad4c5e1d3ca39501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee3321318ae36cd1e8ad5a67042ffc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c257735a0badc08341c997baa800f9d5.png)
【知识点】 与三角形的高有关的计算问题解读 根据三角形中线求面积解读
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2904a1ad426e7a9951ee316a9f66fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c5840e0454fdec7d2158072c43b8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8c0d6d7ae9e409db9b930b9e7489a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08991e33572d0a7a830db8de33b88fe9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07011e741a3b3dfc2f9e9ebd89961d44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac50f03177b0c616dc4dc6d9e579b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a71a9d21f77e9535de152bb33f802bb.png)
【知识点】 与角平分线有关的三角形内角和问题解读 全等三角形综合问题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f771c19458183cd450b29a1cb5527f4f.png)
(1)若函数图象经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9055e1408371f84b8df59347ba7309.png)
(2)若函数图象经过第一、三、四象限,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)在图中画出平移后的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
【知识点】 坐标与图形 写出直角坐标系中点的坐标解读 平移(作图)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7437ac06d7480f6c63165c26a24df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640e9e7c56e8eeda044fb55396088816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e855c354ab71fdc3c46cd6f82ced40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7652fd5598a9eaa011726784cae56bc8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9662e4efb22ba4be272245716651a087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
【知识点】 三角形的外角的定义及性质解读 全等三角形的性质解读
【知识点】 旋转模型(全等三角形的辅助线问题)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be66a4dad3eda57de0458eec62752245.png)
【知识点】 其他模型(全等三角形的辅助线问题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf37aff90c39548de5d6b1905d0293b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af91be3dcb952446fc704b0384f5220.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/30/525c23c2-0eda-40b6-938c-540f955c38fa.png?resizew=279)
(1)求交点E的坐标;
(2)直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9498975b003f567a2fd975cba42bc432.png)
(3)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8980102bfb8611a14e79d7456c7e2301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f43677db00ba65a7f96fc49627d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a22fd419c5bc0233fe89eeed712283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9432e4d7540b5f8916e32f62f265b74c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)现学校决定一次性购买
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aad0f4f7f47ac83100121fd7a2fa6e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
(1)小聪同学是这样思考的:延长BD至E,使DE=BD,连接CE,可证得△CED≌△ABD.
①请证明△CED≌△ABD;
②中线BD的取值范围是 .
(2)问题拓展:如图2,在△ABC中,点D是AC的中点,分别以AB,BC为直角边向△ABC外作等腰直角三角形ABM和等腰直角三角形BCN,其中,AB=BM,BC=BN,∠ABM=∠NBC=∠90°,连接MN.请写出BD与MN的数量关系,并说明理由.
![](https://img.xkw.com/dksih/QBM/2021/11/15/2851586504753152/2858758094274560/STEM/20b16ba8-a74b-46e3-8391-2fcea55156af.png)
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 | 判断点所在的象限 | |
2 | 0.94 | 求自变量的取值范围 | |
3 | 0.94 | 画三角形的高 | |
4 | 0.85 | 用SSS直接证明三角形全等(SSS) | |
5 | 0.65 | 根据三角形中线求长度 | |
6 | 0.85 | 举反例 | |
7 | 0.85 | 与三角形的高有关的计算问题 与角平分线有关的三角形内角和问题 | |
8 | 0.85 | 根据一次函数解析式判断其经过的象限 | |
9 | 0.85 | 用图象表示变量间的关系 | |
10 | 0.65 | 角平分线的有关计算 全等的性质和ASA(AAS)综合(ASA或者AAS) 等边三角形的判定和性质 | |
二、填空题 | |||
11 | 0.85 | 根据一次函数增减性求参数 | |
12 | 0.85 | 求一次函数解析式 一次函数图象与坐标轴的交点问题 垂线模型(全等三角形的辅助线问题) | |
13 | 0.65 | 与三角形的高有关的计算问题 根据三角形中线求面积 | |
三、解答题 | |||
14 | 0.65 | 与角平分线有关的三角形内角和问题 全等三角形综合问题 | 问答题 |
15 | 0.65 | 求不等式组的解集 根据一次函数的定义求参数 已知函数经过的象限求参数范围 | 问答题 |
16 | 0.85 | 正比例函数的定义 求一次函数解析式 求一次函数自变量或函数值 | 问答题 |
17 | 0.85 | 坐标与图形 写出直角坐标系中点的坐标 平移(作图) | 作图题 |
18 | 0.85 | 三角形的外角的定义及性质 全等三角形的性质 | 问答题 |
19 | 0.65 | 旋转模型(全等三角形的辅助线问题) | 问答题 |
20 | 0.4 | 其他模型(全等三角形的辅助线问题) | 证明题 |
21 | 0.65 | 求一次函数解析式 根据两条直线的交点求不等式的解集 两直线的交点与二元一次方程组的解 求直线围成的图形面积 | 问答题 |
22 | 0.65 | 销售、利润问题(二元一次方程组的应用) 用一元一次不等式解决实际问题 其他问题(一次函数的实际应用) | 问答题 |
23 | 0.65 | 确定第三边的取值范围 三角形内角和定理的应用 倍长中线模型(全等三角形的辅助线问题) | 证明题 |