安徽省安庆市怀宁县2022-2023学年九年级上学期期末数学试题
安徽
九年级
期末
2024-02-01
50次
整体难度:
容易
考查范围:
图形的变化、函数、图形的性质、方程与不等式、数与式
一、单选题 添加题型下试题
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 轴对称图形的识别解读 判断生活中的旋转现象解读
2. 如图,五线谱是由等距离、等长度的五条平行横线组成的,同一条直线上的三个点,
,
都在横线上,若线段
,则线段
的长是( )
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 由平行截线求相关线段的长或比值解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7258241e4a90830b33aab7d07b5dae15.png)
A.![]() | B.1 | C.![]() | D.2 |
A.直径是弦,半圆不是弧 | B.相等的圆心角所对的弧也相等 |
C.周长相等的两个圆是等圆 | D.圆是轴对称图形,每一条直径都是它的对称轴 |
【知识点】 圆的基本概念辨析解读 利用弧、弦、圆心角的关系求解解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e73d985dd768c448f89c68ad780d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A.只有1个 | B.可以有2个 | C.可以有3个 | D.有无数个 |
【知识点】 利用相似三角形的性质求解解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515977b460f28ba4451b4918d3e6988a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/6e51658f-c81a-4b62-b143-f428e69251b6.png?resizew=160)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
【知识点】 判断点所在的象限解读 二次函数图象与各项系数符号解读
![](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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4bed81b3e3b9de4e36262e7c57a8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d572eb3233343b90f190dde56701f22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/43effaf1-11a2-4062-9e19-37ce3aa2b488.png?resizew=146)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee4577d3fbf662ceabc598d493f51987.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/4a13aeb6-96cf-4d1c-838b-456336d18e6b.png?resizew=141)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 图象法解一元二次不等式解读
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
【知识点】 y=ax²+bx+c的图象与性质解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a73b92d15603e9074b1a15755611d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/405554b6a34430029b4bab739d69bca3.png)
【知识点】 黄金分割
![](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/f25936291abb6432ed5a710ebf0ea195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6e8fb343d289461c07922963f849a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/22/c289102e-5edf-440a-81a7-ca18428c8428.png?resizew=116)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/d8792833-2819-47f6-9db0-135080a6ed05.png?resizew=346)
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/120fa63e-06c8-4fb3-9ee2-ea1bd2d9f783.png?resizew=389)
【知识点】 仰角俯角问题(解直角三角形的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/1b972dd4-0bab-4134-91a9-1d1a45d7f0af.png?resizew=216)
(1)在图中建立平面直角坐标系,使得原点为点O,点A、B坐标分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a4c690da4f45c9c0ac313a06c071e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb7d68c33e9e7772f2863e9927b29f0.png)
(2)以点O为位似中心,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
【知识点】 画旋转图形解读 画已知图形放大或缩小n倍后的位似图形解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1c99ecbdd5325cd8ff673e1edc4eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/cda42da2a849e932a286bac0efa11450.png)
求证:(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25dbb68af283d244a46f172ab1f5f21.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b70c20d4237f95f6431f87082a175a3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/8/8cdee303-8fe8-4453-aeba-3fd98ddb66c8.png?resizew=204)
【知识点】 等腰三角形的性质和判定 相似三角形的判定与性质综合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e9d7affc219672c9c6b779ba498bd3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/5a9bbe2f-65db-4b41-b534-fc640e5e66cf.png?resizew=139)
(1)求李明这两年纯收入的年平均增长率;
(2)随着养鸡规模不断扩大,李明需要再建一个养鸡场,他计划用一段长为100米的篱笆围成一个一边靠墙的矩形养鸡场(如图),墙长60米,要使围成的养鸡场面积最大,则养鸡场与墙平行的一边的长度应是多少米?最大面积是多少米
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce255daa7f14be673c0a464d41159207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2450156c6f081864f1efcf10af156e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9365a689dc3972e402789c7dcd220a7a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/b4dcee93-a873-4fbe-bd2b-d790cf659938.png?resizew=367)
(1)该抛物线的函数表达式;
(2)点D的坐标;
(3)起跳点A与着陆坡顶端C之间的水平距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
【知识点】 其他问题(实际问题与二次函数) 用勾股定理解三角形解读
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 判断生活中的旋转现象 | |
2 | 0.65 | 由平行截线求相关线段的长或比值 | |
3 | 0.85 | y=a(x-h)²+k的图象和性质 把y=ax²+bx+c化成顶点式 | |
4 | 0.85 | 圆的基本概念辨析 利用弧、弦、圆心角的关系求解 | |
5 | 0.85 | 求一元一次不等式的解集 已知反比例函数的增减性求参数 | |
6 | 0.85 | 利用相似三角形的性质求解 | |
7 | 0.65 | 判断点所在的象限 二次函数图象与各项系数符号 | |
8 | 0.85 | 用勾股定理解三角形 求角的正弦值 等腰梯形的性质定理 | |
9 | 0.94 | 三角形内角和定理的应用 根据等边对等角求角度 圆的基本概念辨析 | |
10 | 0.85 | 图象法解一元二次不等式 | |
二、填空题 | |||
11 | 0.85 | y=ax²+bx+c的图象与性质 | |
12 | 0.85 | 黄金分割 | |
13 | 0.85 | 用勾股定理解三角形 半圆(直径)所对的圆周角是直角 求角的正切值 | |
14 | 0.65 | 勾股定理与网格问题 证明两三角形相似 | |
三、解答题 | |||
15 | 0.65 | 二次根式的混合运算 特殊角三角函数值的混合运算 | 计算题 |
16 | 0.85 | 比例的性质 | 问答题 |
17 | 0.85 | 用勾股定理解三角形 利用垂径定理求值 | 问答题 |
18 | 0.65 | 仰角俯角问题(解直角三角形的应用) | 问答题 |
19 | 0.65 | 画旋转图形 画已知图形放大或缩小n倍后的位似图形 | 作图题 |
20 | 0.65 | 等腰三角形的性质和判定 相似三角形的判定与性质综合 | 证明题 |
21 | 0.65 | 增长率问题(一元二次方程的应用) 图形问题(实际问题与二次函数) | 应用题 |
22 | 0.65 | 角平分线的性质定理 用勾股定理解三角形 切线的性质定理 解直角三角形的相关计算 | 证明题 |
23 | 0.65 | 其他问题(实际问题与二次函数) 用勾股定理解三角形 | 应用题 |