江苏省连云港市海州区2023-2024学年九年级下学期期中数学试题
江苏
九年级
期中
2024-05-23
111次
整体难度:
容易
考查范围:
数与式、图形的变化、图形的性质、函数、方程与不等式、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】 正方体几种展开图的识别解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/834136f6fb1489c13f6f626e0b2ed58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec205dd821e251510f265bd53cf62526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05de5eef286a1b48012246c0cf88a1c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.9 | B.6 | C.3 | D.4 |
【知识点】 已知比例系数求特殊图形的面积解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb16a8aad897d94c0b3deecd617971c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3c450315612a9fa3fc9562f290bc04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27063f9a5e639abefb43125ac67a104c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec08493dbb928eb31509489fcb4ffcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2abb63659f42d537b497ba7538bc42db.png)
A.![]() ![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() |
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0800157dbd4e118d86430abcbbe95b88.png)
【知识点】 二次根式有意义的条件解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
【知识点】 根据平行线的性质求角的度数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1898ead1b42c7a17f068869ee3e49e40.png)
【知识点】 其他问题(实际问题与二次函数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c5edbb49b19501f860014ff6ff8fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2233f8032d4511e53eaf9aa3caab1ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b13d3854ea2671a9ae5be5b69a573e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d900531973c546625694146fa1509ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
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/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73caa6462cfa5dc60c2a245ca7dcb21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c4320b5bb88f112357bf2700e1924ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266abba50548a408a8a42d0f9c2aa6ac.png)
(2)若点D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc1cbcd6d00f0c36bad8254297d9f33.png)
运动时间t/min | 频数 | 频率 |
![]() | 4 | 0.1 |
![]() | 7 | 0.175 |
![]() | a | 0.35 |
![]() | 9 | 0.225 |
![]() | 6 | b |
合计 | n | 1 |
(1)频数分布表中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7277696e8d9f58c9ec28887783b317e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1dbed0813c67a81a3a76c288a3f105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ff01f54e97b5d85b34907ea1da5754.png)
(2)请补全频数分布直方图;
(3)若该校九年级共有600名学生,试估计该校九年级学生平均每天体育运动时间不低于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f6ba14b8400c6f358556894332e503.png)
【知识点】 由样本所占百分比估计总体的数量 画条形统计图解读 频数分布表解读
(1)从盒子任意抽取一张卡片,恰好抽到标有奇数卡片的概率是: ;
(2)先从盒子中任意抽取一张卡片,再从余下的3张卡片中任意抽取一张卡片,求抽取的2张卡片标有数字之和大于4的概率(请用画树状图或列表等方法求解).
【知识点】 列表法或树状图法求概率解读
购票方式 | 甲 | 乙 | 丙 |
可游玩景点 | 花果山 | 渔湾 | 花果山和渔湾 |
门票价格 | 90元/人 | 40元/人 | 120元/人 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4646418552dc060ebda1232361a01295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87796ee30e6c5d5e6b6285b32abe10c.png)
(1)若丙种门票价格下降10元,求两个景区“五一”节期间的门票总收入;
(2)将丙种门票价格下降多少元时,两个景区“五一”节期间的门票总收入有最大值?最大值是多少万元?
(1)判断直线CD与⊙O的位置关系,并说明理由;
(2)若BE=4,DE=8,求AC的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/8678358b-e20c-4d5a-b9be-b8baab1bbef3.png?resizew=131)
【知识点】 证明某直线是圆的切线解读 解直角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26537461e34c5ab7fd30476ac25217a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8f58755aee89fb2cf72ba518dcee2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e643a2908e217f2294d86b836cad5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81cbc4c04678d6155ed6fa775fcf608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ecad355286188fd317939fa50f9555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87796ee30e6c5d5e6b6285b32abe10c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37475e3957c12557df59e6ab169195e3.png)
【知识点】 其他问题(解直角三角形的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974cf6ed500e27d2a9928db300645f4f.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/7f9e8449aad35c5d840a3395ea86df6d.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/ef1dbed0813c67a81a3a76c288a3f105.png)
(2)如图2,坐标平面上放置一透明胶片,并在胶片上描画出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf90af48c665ee801c05cc55914b8fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf90af48c665ee801c05cc55914b8fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c28b4f0234b698f001e7dec787b4d44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
(3)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5cc41f26f9f736454c245f12482f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f4088bf58716c0c58940daf879a147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdb9b4dc50fd012336ff07b8213bf2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
【问题提出】
如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
【问题探究】
小明:如图2,分别以B、C为圆心,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c949041edaa08cf6a7f75410b0d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0c32d9f3badb7e51233dd39a39fbb3.png)
小亮:如图3,过点B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c3e1e0e7938fcce6a0ecd70c14b480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d17b67f68ac8dd0de1206d604f12c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0c32d9f3badb7e51233dd39a39fbb3.png)
(1)小明得出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6720e36b02193db161c61d4017673760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a290f047f50481318d040c604d72f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4351a730f61bb998bab8f0b7848912d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beb8b968744573e593ac28451c69729.png)
【问题再探】
(2)在(1)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b85c3338e10be6d59903b2253f1acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031852844b65eb8c3be10fcb6ed11196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f15ba851a0f65c271ec774095516f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533963a9196536928d7e4d43caef51c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693ca42a80bd3d661fc5de6b5df2e8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07789d6a8259ac89144caa816aaaf47d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49a0fc83871d606f2f9561d2bf6dcd6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf9dc012c88456de7e1d26c7515a538.png)
【问题解决】
(3)如图6,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3841d85fedea835c404d5ce7e843d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d768ffd5bf75080e8ff5ce6b472c0cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202262caed6869a80feee0cb861a210b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ea7b19ee92cbf13350a1ee9476cc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
【知识点】 全等三角形综合问题 等腰三角形的性质和判定 已知正切值求边长解读
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 | 0.94 | 相反数的定义 | |
2 | 0.85 | 轴对称图形的识别 中心对称图形的识别 | |
3 | 0.94 | 用科学记数法表示绝对值大于1的数 | |
4 | 0.85 | 同底数幂相乘 积的乘方运算 计算多项式乘多项式 | |
5 | 0.85 | 正方体几种展开图的识别 | |
6 | 0.65 | 已知比例系数求特殊图形的面积 | |
7 | 0.65 | 用勾股定理解三角形 | |
8 | 0.4 | (x+p)(x+q)型多项式乘法 一元一次不等式组应用 y=ax²+bx+c的图象与性质 y=ax²+bx+c的最值 | |
二、填空题 | |||
9 | 0.85 | 求一个数的绝对值 | |
10 | 0.85 | 线段中点的有关计算 | |
11 | 0.94 | 二次根式有意义的条件 | |
12 | 0.65 | 几何概率 | |
13 | 0.85 | 根据平行线的性质求角的度数 | |
14 | 0.4 | 其他问题(实际问题与二次函数) | |
15 | 0.85 | 勾股定理与网格问题 求弧长 | |
16 | 0.4 | 坐标与图形 y=ax²+bx+c的图象与性质 相似三角形的判定与性质综合 求角的正切值 | |
三、解答题 | |||
17 | 0.85 | 实数的混合运算 零指数幂 | 计算题 |
18 | 0.65 | 求不等式组的解集 | 计算题 |
19 | 0.65 | 解分式方程 分式方程无解问题 | 问答题 |
20 | 0.65 | 用SAS直接证明三角形全等(SAS) 根据三线合一证明 利用平行四边形性质和判定证明 证明四边形是矩形 | 证明题 |
21 | 0.65 | 由样本所占百分比估计总体的数量 画条形统计图 频数分布表 | 作图题 |
22 | 0.85 | 列表法或树状图法求概率 | 问答题 |
23 | 0.65 | 有理数四则混合运算的实际应用 销售问题(实际问题与二次函数) | 应用题 |
24 | 0.65 | 证明某直线是圆的切线 解直角三角形 | 问答题 |
25 | 0.65 | 其他问题(解直角三角形的应用) | 问答题 |
26 | 0.65 | 待定系数法求二次函数解析式 全等三角形综合问题 用勾股定理解三角形 解直角三角形的相关计算 | 问答题 |
27 | 0.4 | 全等三角形综合问题 等腰三角形的性质和判定 已知正切值求边长 | 证明题 |