江苏省南通市如东县、通州区、海门区2024年九年级中考一模数学试题
江苏
九年级
一模
2024-05-24
327次
整体难度:
容易
考查范围:
数与式、图形的变化、图形的性质、方程与不等式、函数、统计与概率
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大于1的数解读
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 判断简单几何体的三视图解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc3ef6a72ecee9efdca1f447fa243d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
A.10° | B.12° | C.15° | D.20° |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c40e5aeded0ae106002db78c4c6f939.png)
A.有两个不相等的实数根 | B.有两个相等的实数根 |
C.只有一个实数根 | D.没有实数根 |
【知识点】 根据判别式判断一元二次方程根的情况解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d452f74791f58e8400cb8d2d6038dc4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227c72dd2471a72e9a6d631d13105af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0922d90a22b870ba0d2db00bbdfba51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864c63a5ef55edcdcdc5b92f6a53f690.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e600c20cd4be3321dc5ea832833d1aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8409329b550296446a936d97c491ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f96b2a7477d605bdfa0fba754fbd0d.png)
A.![]() | B.2 | C.![]() | D.![]() |
【知识点】 整式乘法混合运算 y=ax²+bx+c的最值解读
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ad23dae9c388a54006d030ae4c9588.png)
【知识点】 利用二次根式的性质化简解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
【知识点】 其他问题(解直角三角形的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f677dbb874b8286dde3f608ae85a9e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0874f019492261eb175bdcc08c189d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0894a92551cfa759804000fd6aae3336.png)
【知识点】 根据图形面积求比例系数(解析式)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5fc6ead6416492c231c320a5486f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec6f55080bff4b4937efa5d085239cd.png)
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7de38aa79c7a5cebc87cbad860d4b4.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd24a254b71cd4fcbca0fe2913ca939f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ce48eafd36547782174eb304d4a003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4257b8939a4f0c809129cbf202416397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273e1ca083d8248e72e9fbd2f8403db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b43e3c1381250925b5c2db9a57796f.png)
信息一:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332e71982612ea86c28b9f2054b1045c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233efdb759ff0cb413c7a539f4895c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ddce6dd8d5630af4c38cf4010dbefa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e31b3a49e142e4b55e664c29100ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e31b3a49e142e4b55e664c29100ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6620729a37129c16cfd61cd59500bfe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6620729a37129c16cfd61cd59500bfe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6620729a37129c16cfd61cd59500bfe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbcf82603580ddba4cfdb4efde85a8d.png)
信息二:B款无人机运行最长时间统计图
类别 | 平均数 | 中位数 | 众数 | 方差 |
A | ||||
B |
(1)你认为哪款无人机运行性能更好些?请说明理由(写出一条即可);
(2)若仓库有A款无人机
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dd550e1ad9bbf01687ffb4aab788ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd121f4aeca8a78a320fca1fd1c4d07.png)
【知识点】 由样本所占百分比估计总体的数量 运用中位数做决策 运用众数做决策
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c383691e8d740830a865b12d66f7633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa32defa2d2aa2a20df00e6dccdbd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3e9158663137348ded8571a97f29e0.png)
小虎的证明过程如下:
证明:在![]() ![]() ∵ ![]() ![]() ![]() ∴ ![]() ![]() ∴ ![]() |
(1)小虎同学的证明过程中,第 步出现错误;
(2)请写出正确的证明过程.
【知识点】 全等的性质和SSS综合(SSS)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
【知识点】 列表法或树状图法求概率解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f2804c1b38a7b7ac58df258d878d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3e7d4185f3189b55166d280723ccce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b900e6b41d25a87b4601af3c9e1f201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
信息1:每月的销售总量y(件)和销售单价x(元/件)存在函数关系,其图象由部分双曲线![]() ![]() |
(1)求该产品的生产成本;
(2)该公司计划在4月份通过技术改造,使生产成本降低
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0797a4e8f5cb2a7746ce2e4ea4e81f.png)
【知识点】 实际问题与反比例函数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c015d99f2677951bdcd0447240ef93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
(2)用等式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78586b828396019f1f8071c3d6c137bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f17338776b6362bbecf862e165ead8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edcf6b2d582a981c29762469dcfa527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7caf4941cec03d0730041ba6bf7c14e.png)
(2)如图,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa03fe455c3c777f1a200cb6967e469.png)
(3)设M是x轴下方抛物线上的动点(不与C重合),过点M作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5125f17b4e2eab992b9a17dea1e86c5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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 | 0.94 | 两个有理数的乘法运算 | |
2 | 0.85 | 用科学记数法表示绝对值大于1的数 | |
3 | 0.85 | 判断简单几何体的三视图 | |
4 | 0.85 | 合并同类项 同底数幂相乘 积的乘方运算 同底数幂的除法运算 | |
5 | 0.85 | 平行公理推论的应用 根据平行线的性质求角的度数 直角三角形的两个锐角互余 | |
6 | 0.94 | 根据判别式判断一元二次方程根的情况 | |
7 | 0.85 | 线段垂直平分线的性质 作垂线(尺规作图) 与三角形中位线有关的证明 斜边的中线等于斜边的一半 | |
8 | 0.85 | 判断一次函数的图象 画y=ax²+bx+c的图象 判断(画)反比例函数图象 | |
9 | 0.85 | 用勾股定理解三角形 矩形性质理解 | |
10 | 0.4 | 整式乘法混合运算 y=ax²+bx+c的最值 | |
二、填空题 | |||
11 | 0.94 | 平方差公式分解因式 | |
12 | 0.85 | 正多边形的外角问题 | |
13 | 0.85 | 利用二次根式的性质化简 | |
14 | 0.94 | 同分母分式加减法 | |
15 | 0.65 | 其他问题(解直角三角形的应用) | |
16 | 0.85 | 圆周角定理 求扇形面积 | |
17 | 0.85 | 根据图形面积求比例系数(解析式) | |
18 | 0.65 | 根据正方形的性质求线段长 根据旋转的性质求解 相似三角形的判定与性质综合 解直角三角形的相关计算 | |
三、解答题 | |||
19 | 0.85 | 计算单项式乘多项式及求值 运用平方差公式进行运算 解分式方程 | 计算题 |
20 | 0.85 | 由样本所占百分比估计总体的数量 运用中位数做决策 运用众数做决策 | 问答题 |
21 | 0.85 | 全等的性质和SSS综合(SSS) | 问答题 |
22 | 0.85 | 列表法或树状图法求概率 | 问答题 |
23 | 0.65 | 切线的性质定理 解直角三角形的相关计算 平行投影 | 问答题 |
24 | 0.85 | 实际问题与反比例函数 | 应用题 |
25 | 0.65 | 用勾股定理解三角形 矩形与折叠问题 根据正方形的性质与判定求线段长 解直角三角形的相关计算 | 证明题 |
26 | 0.4 | y=ax²+bx+c的图象与性质 抛物线与x轴的交点问题 相似三角形的判定与性质综合 | 证明题 |