2024年广东省江门市鹤山市中考一模数学试题
广东
九年级
一模
2024-05-23
237次
整体难度:
容易
考查范围:
图形的变化、数与式、统计与概率、方程与不等式、图形的性质、函数
一、单选题 添加题型下试题
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 用科学记数法表示绝对值小于1的数解读
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 判断简单组合体的三视图解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db2e22b48fe558d5d2d49d08ed24ea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【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/7bae1747048c6625d5ae0e1808159cce.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 在数轴上表示不等式的解集解读 求不等式组的解集解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/807d62d0b5623b3bd3cb285560bf8436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 一元二次方程的根与系数的关系解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9940526785ca763da2dfa35e77c934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
A.![]() | B.![]() | C.![]() | D.4 |
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1f0e20ff621c4cee6d8f8b470c324e.png)
【知识点】 根据等边对等角求角度解读 多边形内角和与外角和综合解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70108f50e7c170e18f70fe3e4967e36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75512598a8968ffe742ad52f4caf1e6d.png)
【知识点】 利用图象法解一元一次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2062f2e8478e9f53bfeae4a69b45f7b6.png)
【知识点】 (特殊)平行四边形的动点问题解读
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c20a51a59b47f1c9a4405134fbd4d9.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ea3f520549b73c09fdbf26a166f171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e479ed742e14f4964aae6cba5b2c9d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2591b22272701c6c86a9d47340efcb13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da199ba5c1e65e918ce36e96dec51b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb28b48d10fb8581026bb7deb9146346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e52c1f6d8da4183b098e48c02edfbd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9729f74c04e8489930a8414e4649c1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2dd7278ae90c7be7cac0e45d938865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d988a20eddaaa07b17f15b652e16391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40acc8530706f34a59b79130e569295f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e830b6857cb8bf54560ce6ce616d93c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47ff910cb96d9b033a08f7916cbda43.png)
【知识点】 其他问题(解直角三角形的应用)
收集数据
七年级15名学生测试成绩分别为:78,83,89、97,98,85,100,94,87,90,94,92,99,94,100.
八年级15名学生测试成绩分别为:81,82,83,85,87,96,87,92,94,95,87,93,95,96,97.
分析数据
年级 | 平均数 | 众数 | 中位数 | 方差 |
七年级 | 92 | 94 | a | 40.9 |
八年级 | 90 | b | 92 | 29.7 |
(1)根据以上信息,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)由方差可以推断:七、八年级中,学生测试成绩较稳定的是______;
(3)甲同学说:“这次测试我得了93分,位于年级中等偏上水平”,你认为甲同学更可能来自七年级还是八年级,并简要说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c0f50f10ad3bf973036e523af41810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789cac70cd4769dcdcf49f649d5cb5ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a17a382b0fca502d6d3521e1d8ffe5.png)
(2)活动2:如图2,连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c3ca226db5d490fa92bb1b7c8deb14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c3cfc5aee07fef740703f904c3ff93.png)
(3)活动3:如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c3cfc5aee07fef740703f904c3ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91471da4a77df63164169d4858666563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0e131843516f8735faf6c15094ed43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d57173ef4cd72eb270686875dfd623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36488f7dff759ace2a27e56c3857056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)如图,在坐标平面上放置一透明矩形胶片
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3c15b30bd155641e548a7d8c172dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7a380477954e37d5fbb407e04c076e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81722445de00f3cfcc3cb97e45b0d8dd.png)
①求旋转过程中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
②求图像
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81722445de00f3cfcc3cb97e45b0d8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997e259b8e338efec1d972717a483eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cfeb35addf27f2379a8e5f87c9b952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e4ac6afae99c319e0fdc374f7e08ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965adbbb929c2f3d6c6e21cc6fbbb497.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83042953e7f15e984b2da2ee9ca678d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42a88f17ae54a365c4bd1c075d43f50.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 | 轴对称图形的识别 中心对称图形的识别 | |
2 | 0.94 | 用科学记数法表示绝对值小于1的数 | |
3 | 0.94 | 相反数的定义 | |
4 | 0.85 | 合并同类项 同底数幂相乘 幂的乘方运算 同底数幂的除法运算 | |
5 | 0.85 | 判断简单组合体的三视图 | |
6 | 0.65 | 根据概率公式计算概率 列表法或树状图法求概率 | |
7 | 0.94 | 在数轴上表示不等式的解集 求不等式组的解集 | |
8 | 0.94 | 一元二次方程的根与系数的关系 | |
9 | 0.85 | 含30度角的直角三角形 用勾股定理解三角形 切线的性质定理 | |
10 | 0.65 | 根据图形面积求比例系数(解析式) 相似三角形的判定与性质综合 | |
二、填空题 | |||
11 | 0.94 | 二次根式的混合运算 | |
12 | 0.85 | 提公因式法分解因式 平方差公式分解因式 | |
13 | 0.65 | 根据等边对等角求角度 多边形内角和与外角和综合 | |
14 | 0.85 | 利用图象法解一元一次方程 | |
15 | 0.94 | (特殊)平行四边形的动点问题 | |
三、解答题 | |||
16 | 0.65 | 零指数幂 负整数指数幂 因式分解法解一元二次方程 特殊角三角函数值的混合运算 | 计算题 |
17 | 0.65 | 分式方程的实际应用 | 应用题 |
18 | 0.65 | 其他问题(解直角三角形的应用) | 应用题 |
19 | 0.65 | 求中位数 求众数 根据方差判断稳定性 | 问答题 |
20 | 0.85 | 线段垂直平分线的性质 作垂线(尺规作图) 利用平行四边形性质和判定证明 证明四边形是菱形 | 作图题 |
21 | 0.4 | 角平分线的有关计算 垂线的定义理解 与角平分线有关的三角形内角和问题 多边形内角和问题 | 问答题 |
22 | 0.65 | 待定系数法求二次函数解析式 把y=ax²+bx+c化成顶点式 面积问题(二次函数综合) 特殊四边形(二次函数综合) | 问答题 |
23 | 0.4 | 利用垂径定理求值 半圆(直径)所对的圆周角是直角 相似三角形的判定与性质综合 解直角三角形的相关计算 | 问答题 |