2024年江苏省盐城市建湖县中考二模数学试题
江苏
九年级
二模
2024-05-27
230次
整体难度:
容易
考查范围:
数与式、图形的变化、图形的性质、统计与概率、函数、方程与不等式
一、单选题 添加题型下试题
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A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57201c001e7c837e1f2d757dc9051890.png)
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
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a24680cb206a73bc9a4866646dfc809.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
二、填空题 添加题型下试题
每批粒数n | 2 | 5 | 10 | 50 | 100 | 500 | 1000 | 1500 | 2000 | 3000 |
发芽的频数m | 2 | 4 | 9 | 44 | 92 | 463 | 928 | 1396 | 1866 | 2794 |
发芽的频率![]() | 1.000 | 0.800 | 0.900 | 0.880 | 0.920 | 0.926 | 0.928 | 0.931 | 0.933 | 0.931 |
【知识点】 其他问题(一元一次方程的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2978d25227dad25935b9cd4747c53f26.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc65c94b25c71685612ef283ce7a03b.png)
【知识点】 勾股定理与网格问题解读 在网格中判断直角三角形解读 求角的正切值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae342dcb93e0e6f017093cacc5ac977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c339a4ba441e90a905e2cc4735894375.png)
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三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c11dc81b90b14a9240fa68a9986f692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ac794b53fcf21e1473978a284ed389.png)
【知识点】 已知式子的值,求代数式的值解读 分式化简求值解读
求证:点 D 为 BC 的中点.(请用两种不同的方法证明)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/13/df4f1e07-b6d4-4d0b-a844-98f21089eed4.png?resizew=262)
(1)小明(男)从选考项目中任选一个,选中引体向上的概率为 __________;
(2)小明(男)和小红(女)分别从选考项目中任选一个,求两人都选择掷实心球的概率.(用树状图或列表法写出分析过程)
【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
信息素养提升实践活动意向调查问卷:请在下列选项中选择一项活动意向,并在其后“□”内打✔(每位同学必须且只能选择其中一项).
A. 创意编程 B.3D创念设计 C. 智能博物 D. 电脑绘图 E. 优创未来
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
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(2)已知该校七、八年级学生共有1000人参加本次实践活动(每人只参加一场主题活动),活动地点安排在两个多功能厅,学校根据调查结果给出五场主题活动的具体时间和地点的预案,其中主题活动 C,D的时间和地点已确定,请你合理安排A,B,E三场活动的时间和地点,补全活动安排表格(写出一种方案即可),并说明理由.
时间 | 星期一 | 星期二 | 星期三 | 星期四 | 星期五 |
地点 | 南院多功能厅 (容纳350人) | 北院多功能厅 (容纳160人) | 南院多功能厅 (容纳350人) | 北院多功能厅 (容纳160人) | 北院多功能厅 (容纳160人) |
主题 | ______ | _______ | C | ______ | D |
(1)求甲、乙两种树苗单价分别是多少元?
(2)为扩大园区绿化面积,该小区准备再次购进甲、乙两种树苗共100棵,若总金额不超过1527元,问最少购进多少棵乙种树苗?
【知识点】 分式方程的实际应用解读 用一元一次不等式解决实际问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58023e991dd3befec1b8e3b00088e1af.png)
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(2)根据体验综合分析,当坐垫E到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a770f2b3451313d24143dc555646d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ea64aa7536194fd17d0fb926a8904.png)
【知识点】 其他问题(解直角三角形的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
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(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
(3)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cfd2a95ad9cf4d9e236bdaa754f719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
【特例猜想】如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
【问题探究】如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
【类比运用】如图3, 连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2f91aa5dea19712561c7905535d15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2ab6940dca62be1f3b2b5f8531990.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df04abfcf792463c45866b9f32472c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cc43490c6529c761e310297faaa8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ff0e278b4619962c8335c546226a91.png)
(2)点P是抛物线上一动点(不与点A,B,C重合),作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f00d0ff8dd38da17167cf9b789eec0.png)
① 如图1,若点P在第三象限,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ced00f1bb066cae724ec72cacef089c.png)
② 如图2,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
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试卷分析
试卷题型(共 27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 | 有理数的概念 求一个数的立方根 无理数 | |
2 | 0.85 | 轴对称图形的识别 | |
3 | 0.85 | 同位角相等两直线平行 内错角相等两直线平行 同旁内角互补两直线平行 | |
4 | 0.94 | 用科学记数法表示绝对值大于1的数 | |
5 | 0.85 | 由三视图还原几何体 | |
6 | 0.94 | 利用中位数求未知数据的值 | |
7 | 0.85 | 三角形的外角的定义及性质 同弧或等弧所对的圆周角相等 | |
8 | 0.85 | 从函数的图象获取信息 判断一次函数的增减性 y=ax²+bx+c的图象与性质 判断(画)反比例函数图象 | |
二、填空题 | |||
9 | 0.85 | 分式有意义的条件 | |
10 | 0.94 | 运用平方差公式分解因式 | |
11 | 0.94 | 由频率估计概率 | |
12 | 0.85 | 其他问题(一元一次方程的应用) | |
13 | 0.65 | 一元二次方程的根与系数的关系 | |
14 | 0.65 | 含30度角的直角三角形 求某点的弧形运动路径长度 根据旋转的性质求解 | |
15 | 0.65 | 勾股定理与网格问题 在网格中判断直角三角形 求角的正切值 | |
16 | 0.65 | 一次函数的规律探究问题 斜边的中线等于斜边的一半 利用菱形的性质求线段长 | |
三、解答题 | |||
17 | 0.85 | 利用二次根式的性质化简 求特殊角的三角函数值 特殊角三角函数值的混合运算 | 计算题 |
18 | 0.65 | 已知式子的值,求代数式的值 分式化简求值 | 计算题 |
19 | 0.65 | 用ASA(AAS)证明三角形全等(ASA或者AAS) 根据三线合一证明 | 证明题 |
20 | 0.85 | 根据概率公式计算概率 列表法或树状图法求概率 | 问答题 |
21 | 0.65 | 作线段(尺规作图) 矩形性质理解 证明四边形是菱形 | 作图题 |
22 | 0.65 | 由样本所占百分比估计总体的数量 条形统计图和扇形统计图信息关联 | 问答题 |
23 | 0.65 | 分式方程的实际应用 用一元一次不等式解决实际问题 | 应用题 |
24 | 0.65 | 其他问题(解直角三角形的应用) | 应用题 |
25 | 0.4 | 根据正方形的性质求线段长 求一点到圆上点距离的最值 半圆(直径)所对的圆周角是直角 解直角三角形的相关计算 | 证明题 |
26 | 0.4 | 全等的性质和ASA(AAS)综合(ASA或者AAS) 三线合一 用勾股定理解三角形 相似三角形的判定与性质综合 | 问答题 |
27 | 0.4 | 待定系数法求二次函数解析式 相似三角形的判定与性质综合 角度问题(二次函数综合) 特殊四边形(二次函数综合) | 问答题 |