2024年 “皖韵风华 智慧挑战”中考一模数学试题
安徽
九年级
一模
2024-04-06
417次
整体难度:
容易
考查范围:
数与式、图形的变化、方程与不等式、函数、统计与概率、图形的性质
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/e4da3f617426368a2b32273df99aa529.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 求一元一次不等式的解集解读
A.y=![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
《红楼梦》 | 《水浒传》 | 《孔乙己》 |
《三国演义》 | 《骆驼祥子》 | 《西游记》 |
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 列表法或树状图法求概率解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4515e1dff9a852b3294dc1d6488a5748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9e5ad901b5ac2d256c6f0a141a1554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88555ebbac9ea5524184bdf3ce6b90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e8924d2fb743627552df803087c825.png)
A.1 | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684eae051519f6aba934423a7182fa0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae405e3619fb1ed2e271e1c8545bfd9b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 一次函数与反比例函数图象综合判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df538ff73340b0e910d7a8c9131947d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2592e7c9b19dee8df754fbfed0f3b489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b3e9a99b5b8258baab51f66d1a48ac.png)
A.![]() | B.![]() | C.![]() | D.![]() |
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714df9bf5c269eb8c97141814d0cf153.png)
【知识点】 求一个数的算术平方根解读 零指数幂解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498bcfd1aac03057dcd0adef2dd113a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5862fb8bb359e111a5896f1389ac1126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
【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/d9587445e7d5ea31bdde805cdd961010.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868aa547ea55f24fd5aa20f64021bdaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06d5758035f6a317e9629490a3c8846.png)
(2)设该二次函数图象的顶点坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698c4d4e50062b4a7dd70fe1b4ab4fd7.png)
【知识点】 y=ax²+bx+c的图象与性质解读
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
【知识点】 增长率问题(一元二次方程的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.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)
(2)在(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.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
第1个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f1caf80fea2427fe1419ae252d8f70.png)
第2个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ba7e28f36c328e4560607e221c3bf6.png)
第3个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71958103ceeb2d7cc923ca94f05c1fb.png)
第4个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f0332d09c03da4d5030d2adb779f20a.png)
……
按照以上规律,解决下列问题.
(1)写出第5个等式:______.
(2)写出你猜想的第n个等式:_______(用含n的式子表示),并证明.
【知识点】 数字类规律探索解读 分式加减乘除混合运算解读
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee43a2d338eba4b579c6d4d1829bab4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0e6a71a0bb7301b324dfba10d22708.png)
![](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/a87796ee30e6c5d5e6b6285b32abe10c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356ba0514bbb56fff502e976bf1a160d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3686692fefd3491b57b9ba731f430b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bbaaa426b8e864ea20dbabd30a3e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db8dec6cb9a1a22553035762474247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb7a66459c8d44f3edceb33cfdfdcf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06f08bc324c839126038f1ac33f9c6d.png)
【知识点】 方位角问题(解直角三角形的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7251d14111473460f02a65c7531c51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99098763986757b549957790c1e6b6a2.png)
(2)如图2,
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f20c0125350eefaaa203a7ea5e6759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bd1ffa355edcdc023b5a6b47ca7526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(1)此次比赛,八年级代表队的成绩在8分和9分的总人数为_______.
(2)将表格补充完整.
平均数 | 中位数 | 众数 | |
七年级 | 7.76 | 8 | |
八年级 | 7.76 | 9 |
(3)根据以上数据,判断哪个年级的成绩更好,并说明理由(说出2条理由).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989c75a3fd02e4971cab421c88de92f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d2530e7023b2345c651e8f53629ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ed1a7ab098b824f9c76b1145f30941.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
②点E在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba11242dcc61d3c7c3555b598b5fdc89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5faed21b6b2af6a281de5d49da9ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a45ca7dffe5a2901792f0a108902e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6b7670302e7015123b9446afab1f27.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928d1325e0f48501a6e1680b814eb0f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeae227ddcd963101c96448b12a69d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](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/b483f01a9d3b745d8e07000cbbe89011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.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 | 0.94 | 有理数大小比较 | |
2 | 0.85 | 合并同类项 同底数幂相乘 幂的乘方运算 积的乘方运算 | |
3 | 0.85 | 用科学记数法表示绝对值大于1的数 | |
4 | 0.85 | 判断简单几何体的三视图 | |
5 | 0.85 | 求一元一次不等式的解集 | |
6 | 0.65 | 画一次函数图象 画y=ax²+bx+c的图象 判断(画)反比例函数图象 中心对称图形的识别 | |
7 | 0.65 | 列表法或树状图法求概率 | |
8 | 0.65 | 与图形有关的问题(一元二次方程的应用) 根据正方形的性质求线段长 相似三角形的判定与性质综合 | |
9 | 0.85 | 一次函数与反比例函数图象综合判断 | |
10 | 0.65 | 等边三角形的判定和性质 斜边的中线等于斜边的一半 相似三角形的判定与性质综合 解直角三角形的相关计算 | |
二、填空题 | |||
11 | 0.85 | 求一个数的算术平方根 零指数幂 | |
12 | 0.85 | 已知比例系数求特殊图形的面积 | |
13 | 0.85 | 三角形的外角的定义及性质 等边对等角 圆周角定理 | |
14 | 0.65 | y=ax²+bx+c的图象与性质 | |
三、解答题 | |||
15 | 0.85 | 负整数指数幂 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 | 增长率问题(一元二次方程的应用) | 应用题 |
17 | 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 |
18 | 0.65 | 数字类规律探索 分式加减乘除混合运算 | 问答题 |
19 | 0.65 | 方位角问题(解直角三角形的应用) | 应用题 |
20 | 0.65 | 用勾股定理解三角形 利用垂径定理求值 切线的性质定理 解直角三角形的相关计算 | 证明题 |
21 | 0.65 | 由条形统计图推断结论 求中位数 运用中位数做决策 求众数 | 问答题 |
22 | 0.4 | 全等的性质和HL综合(HL) 证明四边形是菱形 相似三角形的判定与性质综合 | 证明题 |
23 | 0.4 | 待定系数法求二次函数解析式 二次函数图象的平移 相似三角形的判定与性质综合 面积问题(二次函数综合) | 问答题 |