山东省济南市市中区四校联考2023-2024学年八年级下学期期中数学试题
山东
八年级
期中
2024-05-20
57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、函数、图形的变化
一、单选题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 利用平行四边形的性质证明解读
A.八边形 | B.九边形 | C.十边形 | D.十二边形 |
【知识点】 多边形内角和与外角和综合解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90408668ab8f595003e81247d450df5f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 在数轴上表示不等式的解集解读 求不等式组的解集解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
A.x>3 | B.x<3 | C.x<1 | D.x>1 |
【知识点】 根据两条直线的交点求不等式的解集解读
甲:连接AC,作AC的垂直平分线MN分别交AD,AC,BC于M,O,N,连接AN,CM,则四边形ANCM是菱形.
乙:分别作∠A,∠B的平分线AE,BF,分别交BC,AD于E,F,连接EF,则四边形ABEF是菱形.
根据两人的作法可判断()
A.甲正确,乙错误 | B.乙正确,甲错误 | C.甲、乙均正确 | D.甲、乙均错误 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8511b8c76db0ef633f0f8f1952d8d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d04ca0603b31d304ecac431ae50d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154bf540749c73014d5c043b8abe7402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce88126c3cbc88e03d38f56b7da315b6.png)
A.![]() | B.![]() | C.![]() | D.2 |
【知识点】 已知字母的值 ,求代数式的值解读 数字类规律探索解读
A.3∶4 | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc39a71a35930731b5f0b2d3c9b621c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
【知识点】 综合提公因式和公式法分解因式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6723f8b9d907981aa735cd96386bee36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1165830b314a0dab65ea267e82bd3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1165830b314a0dab65ea267e82bd3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069098f180d4defdac3a00e78445b2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c845db2ff87633a4299eb4c5fcf89b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180ea775f2af05650404d764384e7faa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
【知识点】 由一元一次不等式组的解集求参数解读
三、解答题 添加题型下试题
(2)四边形AECF是平行四边形.
(1)求A型,B型机器人模型的单价分别是多少元?
(2)学校准备再次购买A型和B型机器人模型共40台,购买B型机器人模型不超过A型机器人模型的3倍,且商家给出了两种型号机器人模型均打八折的优惠.问购买A型和B型机器人模型各多少台时花费最少?最少花费是多少元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851ab1aa713a2d1c21e886c8acd3f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec079cbc8d826a42a5ce2c9592d44a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6c8b21a087818284c9cd909cc56c814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d97f03faed3152db2fd3bd1919944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
活动一:所购商品按原价打八折;
活动二:所购商品按原价
(1)购买一件原价为450元的健身器材时,选择哪种活动更合算?请说明理由.
(2)购买一件原价在500元以下的健身器材时,若选择活动一和选择活动二的付款金额相等,求一件这种健身器材的原价.
(3)购买一件原价在900元以下的健身器材时,原价在什么范围内,选择活动二比选择活动一更合算?设一件这种健身器材的原价为a元,请直接写出a的取值范围.
如图,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d2530e7023b2345c651e8f53629ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e498ddd40ad424e40b3674ed59e8c6ac.png)
如图,延长图中的线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206ca29a3d1b1503789e159e32729631.png)
如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31715d851d7a1374dabfb973c83429dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d2530e7023b2345c651e8f53629ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8f887360a533f0a25b0b34fb11f0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e492d1de907bb452eed92260e2a34bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e04521727594e71dcccd976cac40e5a.png)
【知识点】 等边三角形的判定和性质 与三角形中位线有关的求解问题解读
将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e947e1b6676c4ec74a0f3eb4a211ab7e.png)
【观察】经过小组合作交流,小明得到了如下的解决方法:
解法一:原式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493b5a9bb196037f3781637d726aa6d5.png)
解法二:原式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c71c3e070f2b32c3c1c7dbc00b4f045.png)
【感悟】对项数较多的多项式无法直接进行因式分解时,我们可以将多项式分为若干组,再利用提公因式法、公式法达到因式分解的目的,这就是因式分解的分组分解法.分组分解法在代数式的化简、求值及方程、函数等学习中起着重要的作用.(温馨提示:因式分解一定要分解到不能再分解为止)
【类比】
(1)请用分组分解法将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3b23ca1ae1e4878fe8053fd1b73cb6.png)
【挑战】
(2)请用分组分解法将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/157e8b671ebcd5971d907e388c6cd666.png)
【应用】
(3)“赵爽弦图”是我国古代数学的骄傲,我们利用它验证了勾股定理.如图,“赵爽弦图”是由四个全等的直角三角形围成的一个大正方形,中间是一个小正方形.若直角三角形的两条直角边长分别是a和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc1ee7f9f3c497125ee3f9e44db9688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120107847df6f645dd48caa5e3609bd8.png)
【知识点】 分组分解法解读 因式分解的应用 以弦图为背景的计算题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb01d2b57580731c8b807ac8cffc8ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2234050438a8305fbc4f4f16b5c392d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)当菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9524e3810e06dc781285f1289e75d653.png)
试卷分析
试卷题型(共 26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 | 判断是否是因式分解 | |
2 | 0.85 | 利用平行四边形的性质证明 | |
3 | 0.85 | 不等式的性质 | |
4 | 0.85 | 多边形内角和与外角和综合 | |
5 | 0.94 | 在数轴上表示不等式的解集 求不等式组的解集 | |
6 | 0.85 | 根据两条直线的交点求不等式的解集 | |
7 | 0.85 | 根据分式方程解的情况求值 求不等式组的解集 | |
8 | 0.65 | 证明四边形是菱形 | |
9 | 0.85 | 已知字母的值 ,求代数式的值 数字类规律探索 | |
10 | 0.4 | 用勾股定理解三角形 利用平行四边形的性质求解 相似三角形的判定与性质综合 | |
二、填空题 | |||
11 | 0.85 | 分式有意义的条件 | |
12 | 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 利用菱形的性质求线段长 | |
13 | 0.65 | 综合提公因式和公式法分解因式 | |
14 | 0.85 | 三角形内角和定理的应用 正多边形的内角问题 折叠问题 | |
15 | 0.65 | 由一元一次不等式组的解集求参数 | |
16 | 0.4 | 含30度角的直角三角形 等边三角形的性质 利用平行四边形的判定与性质求解 | |
三、解答题 | |||
17 | 0.85 | 求不等式组的解集 | 问答题 |
18 | 0.85 | 解分式方程 | 问答题 |
19 | 0.65 | 分式化简求值 | 计算题 |
20 | 0.85 | 全等的性质和SAS综合(SAS) 利用平行四边形性质和判定证明 | 证明题 |
21 | 0.65 | 分式方程的实际应用 用一元一次不等式解决实际问题 最大利润问题(一次函数的实际应用) | 问答题 |
22 | 0.65 | 用勾股定理解三角形 利用平行四边形性质和判定证明 证明四边形是菱形 解直角三角形的相关计算 | 证明题 |
23 | 0.65 | 方案选择(一元一次方程的应用) 用一元一次不等式解决实际问题 | 问答题 |
24 | 0.65 | 等边三角形的判定和性质 与三角形中位线有关的求解问题 | 证明题 |
25 | 0.65 | 分组分解法 因式分解的应用 以弦图为背景的计算题 | 计算题 |
26 | 0.4 | 含30度角的直角三角形 用勾股定理解三角形 根据旋转的性质求解 解直角三角形的相关计算 | 证明题 |