江西省宜春市第七中学2023-2024学年八年级下学期第一次月考数学试题
江西
八年级
阶段练习
2024-05-18
65次
整体难度:
容易
考查范围:
数与式、图形的性质、方程与不等式
一、单选题 添加题型下试题
A.7,24,25 | B.9,12,15 | C.1,![]() | D.![]() |
【知识点】 判断三边能否构成直角三角形解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 三角形内角和定理的应用解读 判断三边能否构成直角三角形解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f100d902102800b2ba5888e0d7bb462d.png)
A.![]() | B.![]() | C.1 | D.![]() |
【知识点】 根据点在数轴的位置判断式子的正负解读 化简绝对值解读
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d166e2e530181a92f2bad059262340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
【知识点】 二次根式有意义的条件解读 求一元一次不等式的解集解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
【知识点】 求小鸟飞行距离(勾股定理的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/755bca260084d4bc232ef15297adab85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd989ddfbed4a6aa18ea57734522153.png)
【知识点】 已知字母的值 ,求代数式的值解读 二次根式有意义的条件解读
【知识点】 求大树折断前的高度(勾股定理的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80af21d661f6ceb9de9070de0a7e8524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42f583cebce62e236718513f0293511.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de53d8bf7a1c1bfdadeb4a9c55a16549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f850c705372b8a85489505da53239fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95db05eddcfaddb6a9515d83231a025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40560ea08d6cd8c1d4d9661ee6faaa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8832c5450a61500ccbf73d95e16f449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de006cef9e5efbcbf74229845804650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
(2)请你在图2中画一个以格点为顶点,面积是13的正方形.
【知识点】 勾股定理与网格问题解读 根据正方形的性质求线段长解读 格点作图题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ada8658cf1d60b0893eca649d39721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca55bc72b99f55ddc46e882d564e471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ae30e22024235ac6dfd92180795b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cfbcf4ecbca8f964985f4a2d3700ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
【知识点】 求梯子滑落高度(勾股定理的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943bbbc757a39dd74d011c75e66e2725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28922c76569c1a9695509e2e8e249541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f1f5b32ca20a88f601239ef94dac5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f1f5b32ca20a88f601239ef94dac5e.png)
(2)求剩余木板的面积;
(3)如果木工师傅想从剩余的木板中截出长为1.5
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f1f5b32ca20a88f601239ef94dac5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f1f5b32ca20a88f601239ef94dac5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52881be613aa404e553da30d8987cfad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80236b37de6f299b5ff05d1ff29850c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3dac8de3d898f0dca07d13691f7140.png)
他是这样分析与解的:
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3ae409c951a76f8e679f2f00e81cfd.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781e8ee34a1141016f96356a0f5726d7.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d552d4566b2a1e8818b01b5290ab0a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0305b24ae0c310772b0a93f3d92161.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6601c927f4fa7028557c1f1b128cc2d.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5be5b0ff35f61af7a1ac0a2f486141.png)
请你根据小明的分析过程,解决如下问题:
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64094954b7b132587efe89aa7f6f873b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14335b3b723eb9563bcda28120a4f348.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca11b57a3f182b39488505519da09d9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab27ecd6a820dc891268e3aa55f3e98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c456b51517b2f6e38342e766ccdcf1.png)
![](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/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6f3d14d4c0d628472a0b5dbd603f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd90bfa2987b84df430498021d5f648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdf82f2b3ac77ee7b9b35aebe0dd83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)如图1,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/decd02bb1fd6ac5a3610a279fe96212b.png)
【变式迁移】
(2)如图2,在等腰
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba1c3e53a2c9e22c753bc85ff4ffff4.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/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9545fa63b0f69136cf7146e14f897e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d498c5bd6f0bc27ab2ebd2c003c666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
【拓展应用】
(3)如图3,在等腰
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f97bf47387beb9f9fd0253b8a21234.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a598a35e6a4bfb3a5f08b55b70bdc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df345d84c7a0352a71e91be9d47589b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
试卷分析
试卷题型(共 21题)
试卷难度
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 | 最简二次根式的判断 | |
2 | 0.85 | 判断三边能否构成直角三角形 | |
3 | 0.85 | 二次根式的混合运算 | |
4 | 0.85 | 三角形内角和定理的应用 判断三边能否构成直角三角形 | |
5 | 0.85 | 根据点在数轴的位置判断式子的正负 化简绝对值 | |
6 | 0.65 | 勾股定理的证明方法 | |
二、填空题 | |||
7 | 0.85 | 二次根式有意义的条件 求一元一次不等式的解集 | |
8 | 0.85 | 同类二次根式 | |
9 | 0.85 | 求小鸟飞行距离(勾股定理的应用) | |
10 | 0.65 | 已知字母的值 ,求代数式的值 二次根式有意义的条件 | |
11 | 0.85 | 求大树折断前的高度(勾股定理的应用) | |
12 | 0.65 | 根据三线合一求解 用勾股定理解三角形 等腰三角形的定义 | |
三、解答题 | |||
13 | 0.85 | 二次根式的加减运算 二次根式的混合运算 | 计算题 |
14 | 0.85 | 已知字母的值 ,求代数式的值 运用平方差公式进行运算 运用完全平方公式进行运算 | 计算题 |
15 | 0.65 | 用勾股定理解三角形 利用勾股定理的逆定理求解 勾股定理逆定理的实际应用 | 应用题 |
16 | 0.85 | 勾股定理与网格问题 根据正方形的性质求线段长 格点作图题 | 作图题 |
17 | 0.65 | 求梯子滑落高度(勾股定理的应用) | 应用题 |
18 | 0.65 | 二次根式的应用 | 应用题 |
19 | 0.65 | 二次根式的混合运算 分母有理化 | 计算题 |
20 | 0.65 | 用勾股定理解三角形 | 问答题 |
21 | 0.4 | 全等三角形综合问题 用勾股定理解三角形 | 证明题 |