2021年浙江省乐清市初中毕业升学适应性考试数学试题
浙江
九年级
模拟预测
2021-06-19
541次
整体难度:
容易
考查范围:
数与式、图形的变化、统计与概率、方程与不等式、图形的性质、函数
一、单选题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab0fff93063e013fccb9ac00191c664.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 两个有理数的乘法运算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec818fc0754296163206e1e8870f9e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a79523845e72a385057008038cd117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a79523845e72a385057008038cd117.png)
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
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/19140cc2-da45-4720-9e03-483714dd0caf.png?resizew=150)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 判断简单组合体的三视图解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据概率公式计算概率解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969255768064/STEM/3771dd9d-434b-4706-bd8a-3669350ab663.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 总体、个体、样本、样本容量解读 求扇形统计图的某项数目
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5707186257494f1fea86066f2778b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据一元二次方程根的情况求参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f0ef824845a450279d4af3b998b95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969255833600/STEM/a2723c11-2433-431e-abf6-149f1edaf174.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【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/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ba3e477164ee8a916529b0d5112aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d794141572c8b1e70957754f32b9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93a232c88870d213a7b74a796a1ff4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d7ffb7889a31b267a85f1ea238138e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d7ffb7889a31b267a85f1ea238138e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0468237bbc0d3df77435d98b817c10c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3557809c066e68395b614535a7675e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969255849984/STEM/2015f03a-37d5-4d35-84a5-fa6a1c7ad76f.png?resizew=390)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 图形问题(实际问题与二次函数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e570e4f08880a8861d5e330c0332b0ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94115b985741a968130e3ee3f2479fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a8588dc60a543ad70d6bc0d263dbd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8cbde98d09c06d2cc5481c6a8fbad8.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49a145f4db8191fea94f356e1ae89ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83042953e7f15e984b2da2ee9ca678d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe21d2f199cb4797e9134994d6deb02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e4ef14cc3f0de4f2f4dfe10743cd74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ac34bb0a6b0db7c5c31836d384af16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1d04601be6fbbce9b32d5b50bc3e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969255874560/STEM/cc8dd3d6-b126-4482-9a81-9eaba2f4a3f6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 相似三角形的判定与性质综合
二、填空题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6b10ec2d8eb65a21ae67d75a971ecf.png)
【知识点】 运用完全平方公式分解因式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9bce67850e25759386553275f90ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf5aa804a10c17fa9e4e89fa9c533d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802a939a9ab14a1a762a4275c9ec6899.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/6541a92d-986b-4ab0-918c-f7c87cde80f8.png?resizew=172)
【知识点】 同弧或等弧所对的圆周角相等解读 已知圆内接四边形求角度解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45bd7e92dae1e0c2af6c33d5e202f544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802757b2f0af8c4bc59db68044712584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2455fb53ada309ffe9717d2613a937f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/0faed94a64b2dcfc6801b4fca0f16675.png)
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![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969255989248/STEM/872f4b940fa041408cf6878b189e1831.png?resizew=166)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288abe01824f42cfe725509af5aec4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0f067a2a348ceb24a408f82992eab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fd412f6c77af5b5d55133aa7509ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97153bc3d02dfb38ee046487a8037a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aba95485ff8041dd63461298a7e8fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a20e9a6f5edec560a76ac36f71d543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70f3962301930318180c933480b9b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97153bc3d02dfb38ee046487a8037a41.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256005632/STEM/05a3fb47-7b3a-4dbb-8b40-9398c4113bd1.png)
【知识点】 相似三角形的判定与性质综合 解直角三角形的相关计算解读
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3ce749287190ed03aad33d81c8f388.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b7c5b7a04df8528caa8aca51260718.png)
【知识点】 实数的混合运算 分式加减乘除混合运算解读 零指数幂解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7157312ed5d2f11531b6707c3486db81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efffb3e6a571832b723b3c5795b8e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff939a56c74534dd061df9520ee48b2c.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256046592/STEM/690dbd0a58de4008bb9f9b22b947d641.png?resizew=267)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0713e6a7c249e51e793372c56b9e1b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eeb19c687c0b6b0c6c0291a15b870f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
【知识点】 全等三角形综合问题 根据三线合一证明解读 等边三角形的判定和性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b72ac611ae66b86761e080761d9aabc.png)
打卡次数 | |||||||
人数 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b72ac611ae66b86761e080761d9aabc.png)
(2)为了调动大多数同学锻炼的积极性,班主任准备制定一个打卡奖励标准,凡打卡次数达到或超过这个标准的同学将获得奖励的措施.如果你是班主任,从平均数、中位数、众数的角度进行分析,你将如何确定这个“打卡奖励”标准?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd4be97adde17423d59d86d18318c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256112128/STEM/f184cc1573c5429c9274b193f0965d29.png?resizew=337)
(1)在图1中以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f70d6f5baadf8139ee650b84f2fde70.png)
(2)在图2中以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a355958abf7dc0f2eb949584cb87907b.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6160d4e567a1bfd3a6ee159067453579.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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256136704/STEM/87d3f802-28ad-4455-80bc-00e71099d1b1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98de02d1d5b7ac04bce54be393218922.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d330318e97bdbb252bebc6ef1dc2dbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
【知识点】 切线的性质和判定的综合应用解读 相似三角形的判定与性质综合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba505969331b28f0e2d3047d49988914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074962077b22ca5aaff5998ad31468d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47543f9c51eb71b208b483444a4cff58.png)
(1)求测温枪与洗手液的单价各是多少元?
(2)若该学校决定购进测温枪与洗手液数量共
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dd550e1ad9bbf01687ffb4aab788ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
(3)该学校还需要购买口罩,口罩的单价每包
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf5bc9aef69adaab8c2264ff8cb410c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765fed228492b11196a8b2bc776a7645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c468dc5cc34c14a188493a21019e8f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256177664/STEM/a16cd9ed-8def-4683-a1e9-29b6070ecf4b.png)
(1)求抛物线的函数表达式;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890cefc530a5847d06436800c697b5d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96718982919e778ae41f03392d6704be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1113e9b568fb9ca3286582368e257a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若把抛物线的图象沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0d9e40be9c8dc27e62d7ab9bdc8959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1980d40b4ebf223207b8e61503c264c4.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/79e021fdb53a14bba4a618291d1a9f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14758b25ff6c9483709885d0798c6321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/f52a58fbaf4fea03567e88a9f0f6e37e.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/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256202240/STEM/a5b49548-c285-4ce3-904d-43d539f4ec4e.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e59617707e98c3441445392333b491.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(3)①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e9785a8ffb637c91757fe01d3c23a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866e0b9cff91999945d83fec7271c032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed87b7b469a1f1f0ea82536cf0f671bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2560e7050503880542c9381dbf58de4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf4e20ea341827ce5f9552daee39462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1627178de6edc574614a630f65775709.png)
试卷分析
试卷题型(共 24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 | 两个有理数的乘法运算 | |
2 | 0.85 | 用科学记数法表示绝对值大于1的数 | |
3 | 0.94 | 判断简单组合体的三视图 | |
4 | 0.94 | 根据概率公式计算概率 | |
5 | 0.65 | 总体、个体、样本、样本容量 求扇形统计图的某项数目 | |
6 | 0.85 | 根据一元二次方程根的情况求参数 | |
7 | 0.85 | 求弧长 | |
8 | 0.85 | 仰角俯角问题(解直角三角形的应用) | |
9 | 0.65 | 图形问题(实际问题与二次函数) | |
10 | 0.65 | 相似三角形的判定与性质综合 | |
二、填空题 | |||
11 | 0.85 | 运用完全平方公式分解因式 | |
12 | 0.94 | 求不等式组的解集 | |
13 | 0.85 | 频数分布直方图 | |
14 | 0.65 | 同弧或等弧所对的圆周角相等 已知圆内接四边形求角度 | |
15 | 0.65 | 已知比例系数求特殊图形的面积 利用相似三角形的性质求解 | |
16 | 0.4 | 相似三角形的判定与性质综合 解直角三角形的相关计算 | |
三、解答题 | |||
17 | 0.85 | 实数的混合运算 分式加减乘除混合运算 零指数幂 | 计算题 |
18 | 0.85 | 全等三角形综合问题 根据三线合一证明 等边三角形的判定和性质 | 证明题 |
19 | 0.65 | 求加权平均数 运用中位数做决策 运用众数做决策 | 问答题 |
20 | 0.85 | 二次根式的除法 勾股定理与网格问题 | 作图题 |
21 | 0.65 | 切线的性质和判定的综合应用 相似三角形的判定与性质综合 | 证明题 |
22 | 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 |
23 | 0.4 | 待定系数法求二次函数解析式 y=ax²+bx+c的最值 其他问题(二次函数综合) | 问答题 |
24 | 0.15 | 相似三角形的判定与性质综合 相似三角形——动点问题 正切的概念辨析 | 证明题 |