黑龙江省哈尔滨市巴彦县2022-2023学年八年级下学期期末数学试题
黑龙江
八年级
期末
2023-08-04
89次
整体难度:
容易
考查范围:
统计与概率、数与式、图形的变化、图形的性质、函数、方程与不等式
一、单选题 添加题型下试题
A.等边三角形 | B.矩形 | C.菱形 | D.正方形 |
【知识点】 求对称轴条数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/24/0528d789-fc9b-4460-aeb2-53c31941bc19.png?resizew=154)
A.4 | B.2 | C.3 | D.![]() |
【知识点】 用勾股定理解三角形解读 利用平行四边形的性质求解解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 已知函数经过的象限求参数范围解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77a1611200563646180abf8624d6bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
A.![]() | B.![]() | C.![]() | D.无法确定 |
【知识点】 判断一次函数的增减性解读 比较一次函数值的大小解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c5361d3a779bf1f25234e675f91de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.png)
A.向上平移9个单位长度 | B.向左平移9个单位长度 |
C.向右平移9个单位长度 | D.向下平移9个单位长度 |
【知识点】 一次函数图象平移问题解读
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898389158649856/2917729776173056/STEM/5e164d2d-97a8-4c59-b7bb-c70b6f5a40d3.png?resizew=195)
A.从小明家到纪念馆的路程是1800米 | B.小明从家到纪念馆的平均速度为180米/分 |
C.小明在纪念馆停留45分钟 | D.小明从纪念馆返回家中的平均速度为100米/分 |
【知识点】 从函数的图象获取信息解读
二、填空题 添加题型下试题
【知识点】 利用平行四边形的性质求解解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab0906bff33675959408a1d1b6fa823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4de17fa291fbebbc5986b74924c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44078124e6c21ccdd2e0236836ae4bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c6ac51b589c5fcd66174c45b151670.png)
【知识点】 比较一次函数值的大小解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f8215a9aceacf0988f40a7d5a726a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e03f83124a357729fd6783606a0b1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/4/b7d0e640-9904-4bb5-9980-21edaac8f69a.png?resizew=164)
【知识点】 坐标与图形 等边三角形的判定和性质 利用菱形的性质求线段长解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ef64bccfc83835302748fa80591f63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb04497a6cfe70c39c578b81e8dca33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af464ddb07308be2cd6f02e61fd08eb.png)
【知识点】 用勾股定理解三角形解读 根据矩形的性质与判定求线段长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9d1f7c7c0e68a0ee8ed82c1fd56250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101f8785e19f1b7e8f68ade2d1ccbcb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcf43ba416adeb723cebe4aee6bbe34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460c3a0db006e19ad307953dc8b0e233.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/524cfa69-147c-4b4c-98d4-6f640a7599a5.png?resizew=123)
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af81c4ef2c3f6c89df156297855493b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eee4831fb15da25972b9fdfbf7219.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/13ce7d2d-3a95-4a74-be17-7384fdac3474.png?resizew=154)
(1)在方格纸中画出以A为直角顶点的直角三角形ABE,点E在小正方形的顶点上,且△ABE的面积为5;
(2)在方格纸中画出以CD为一边的△CDF,点F在小正方形的顶点上,且△CDF的面积为3,CF与(1)中所画线段AE平行,连接BF,请直接写出线段BF的长.
七年级抽取学生的初赛成绩:6,6,7,7,7,8,8,8,8,8,9,9,9,9,9,9,9,10,10,10.
七、八年级抽取的学生的初赛成绩统计表:
年级 | 七年级 | 八年级 |
平均数 | 8.3 | 8.3 |
中位数 | a | |
众数 | b |
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/23/59ffe21d-b1c7-4f95-8867-a8bd02d2da41.png?resizew=253)
(1)a= ,b= ;
(2)通过计算补全条形统计图;
(3)若该校八年级有800名学生参加初赛,规定满分才可进入复赛,请估计八年级进入复赛的人数?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e94633285fd100c13a7cd4d13fad631.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/4/9b73e480-996f-4704-a10c-11d997805f15.png?resizew=402)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a702c324e0c76150540c3d32df802077.png)
(2)如图2,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
(1)这两款火箭模型的进货单价各是多少元?
(2)已知商场准备购进这两款火箭模型共100个,后将这批火箭模型以A款每个70元,B款每个90元的价格出售.求可获得的总利润y(元)与其中A款火箭模型的数量x(个)之间的关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a16dc02090b6e9263555061f14fbc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216312a9a58244dbb6fb017e030bd690.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/22/2e3758a7-c33f-4746-ac4d-6b394c94c6c8.png?resizew=449)
(1)如图1,求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图2,点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50de20eaeaa10486c333251cc98d9df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2646171fab9230c9d404d49eef46f117.png)
(3)如图3,在(2)的条件下,H为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e87f9586b708869fd7186e75a75c1dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c302a2dacabef58bf84287fe3c44d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babe031ca8570a4fc1f413d3ed079681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2f2d5c710612ce39570a1bd57cbc9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4efc7a87ee8a11953300ba5fa2ed680f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/d5a4c93f-faf2-47a6-9ba2-35565863f89b.png?resizew=469)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(2)如图2,点D是x轴负半轴上一点,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c828839ec7daffe75d61c24298afe7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2b8897ba43783adab8b25ea7a99707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
(3)如图3,在(2)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a652efb1b4c24846314dcb571c21a034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e37b122a7273e1251ea3860e74c896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5de64c0cce775255a483ead3e5ec40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db2f4bc195e5c9dd8fe4be4eb06cbb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9342e4f6460913ed350199b98f4e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc525f1b13e5ed895717ba67d2e240ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823d356877deeac910b561ce4ffcca06.png)
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 | 根据方差判断稳定性 | |
2 | 0.85 | 幂的乘方运算 运用完全平方公式进行运算 二次根式的除法 二次根式的加减运算 | |
3 | 0.85 | 求对称轴条数 | |
4 | 0.85 | 用勾股定理解三角形 利用平行四边形的性质求解 | |
5 | 0.85 | 勾股树(数)问题 | |
6 | 0.94 | 已知函数经过的象限求参数范围 | |
7 | 0.85 | 判断一次函数的增减性 比较一次函数值的大小 | |
8 | 0.65 | 一次函数图象平移问题 | |
9 | 0.65 | 求平行线间的距离 | |
10 | 0.85 | 从函数的图象获取信息 | |
二、填空题 | |||
11 | 0.65 | 求方差 | |
12 | 0.85 | 求众数 | |
13 | 0.85 | 求自变量的取值范围 | |
14 | 0.85 | 二次根式的加减运算 | |
15 | 0.94 | 利用平行四边形的性质求解 | |
16 | 0.85 | 已知式子的值,求代数式的值 求一次函数自变量或函数值 | |
17 | 0.85 | 比较一次函数值的大小 | |
18 | 0.65 | 坐标与图形 等边三角形的判定和性质 利用菱形的性质求线段长 | |
19 | 0.65 | 用勾股定理解三角形 根据矩形的性质与判定求线段长 | |
20 | 0.65 | 用勾股定理解三角形 斜边的中线等于斜边的一半 根据正方形的性质求线段长 | |
三、解答题 | |||
21 | 0.65 | 运用平方差公式进行运算 运用完全平方公式进行运算 分式化简求值 | 计算题 |
22 | 0.65 | 勾股定理与网格问题 | 作图题 |
23 | 0.85 | 由样本所占百分比估计总体的数量 画条形统计图 求中位数 求众数 | 计算题 |
24 | 0.65 | 全等的性质和SAS综合(SAS) 全等的性质和ASA(AAS)综合(ASA或者AAS) 等腰三角形的性质和判定 利用矩形的性质证明 | 证明题 |
25 | 0.65 | 分式方程的实际应用 最大利润问题(一次函数的实际应用) | 应用题 |
26 | 0.15 | 全等三角形综合问题 含30度角的直角三角形 证明四边形是菱形 根据菱形的性质与判定求线段长 | 证明题 |
27 | 0.65 | 求一次函数解析式 几何问题(一次函数的实际应用) 全等三角形综合问题 | 问答题 |