1 . 如图,E是矩形
的边
的中点,
于点F,
的延长线交
于点G,连接
,则下列结论:①
;②
;③若
,
,则
;④
;⑤图中相似三角形只有6对.其中正确结论的序号是( )
![](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/187ed13a7bd532bd39af5e5ad7493a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a679040c4d556723e482bacbab41356d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6b78e3a62d67bb720aebf1e2246ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44088e42f218a822101b56fea263ae1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faffe3765c15f53305516895aa595a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21fe7f306533f388843ff62fa2b5251a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e906c2799998ba08e3b6da8d28c24d65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2555968c3266a4be0100327d858417fa.png)
A.①②③ | B.②③④ | C.①④⑤ | D.①②③④⑤ |
您最近一年使用:0次
2024-06-21更新
|
48次组卷
|
3卷引用:2024年黑龙江省龙东地区部分学校中考四模数学试题
2 . 已知抛物线
,
,
是常数)开口向下,过
,
两点,且
.下列五个结论:
①
;②若
,则
;③若点
,
,
,
在抛物线上,
且
,则
;④当
时,关于
的一元二次方程
必有两个不相等的实数根;⑤若
,若
,
,
在抛物线上,且
,则
.
其中正确的有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729358c8511d239e3c26e00fa4711bb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361610314e9bb5580993bd17d66b629c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50773bbec2b9214ce0648894a20c902.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dedece330cc832ae79c9fc1aee6c249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a503927f2e6619c2e0b4b8ad6093938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e743e9dd8d3666f934faf6771dcdce31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a350eb41c3b7e4face9c3299eff9d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222073dfd723d8f6602a7c1455d338b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24529eadaef974ec0625f8ca40682e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b604af10f891c1bc86c5e77e671007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c701c5c07f7c584aadd218d9e341d3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ffcc01616043a2077c48a3dec321b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1574048c0e3dfa66abfdaaae457c5459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dedece330cc832ae79c9fc1aee6c249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc59ccb15217d909f0e1f04a2e2730c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94eef9dfd6d064f30ad528b3c7087df5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e065518216a3c8d76dc5da20d48a4a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127a76d1ac17d55a9ac50beab7210b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d8a36ea9994963733dd6b48b2722ba.png)
其中正确的有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.2个 | B.3个 | C.4个 | D.5个 |
您最近一年使用:0次
3 . 如图,矩形
中,O为
中点,过点O的直线分别与
交于点E,F,连接
,交
于点M,连接
.若
,
,则下列结论中:①
为等边三角形;②
;③四边形
是菱形;④
.正确结论的个数是( )
![](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/f9b79c80cc81b5446dfac3ee97b03c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95884fd79eb7f4e6daecc2317bb7031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16255f4c4de544e0f8f72f352d1f10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70da7465a47de95fcf7be6dbf68e5de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb49c1fd097c5aafc0c9080449f5fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87e1fe20bb0e8292e993657e14bc79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fbc3a1f1e848cf1349b9327be8607d.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
4 . 在
中,
,
,
,D在
上,
,B关于
的对称点E,连接
交
于
,则下列结论中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 如图,在
中,
,
,
,
为
上一点,且
,
为
边上的一个动点,连接
,将其绕点
逆时针旋转
至直线
,使得
,连接
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284e282bb1d9fbf8634b3506ee5358ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.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/adc90c2d45477e166b02359525f40aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8cfadefcefea94b3128933a4db0741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
6 . 如图,在长方形
中放入一个边长为
的大正方形
和两个边长为
的小正方形(正方形
和正方形
),其中
个阴影部分的面积满足
,则长方形
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0817ea93a4f2408122dd6fff52f709f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a42b2cc13fc294a6b7ff1cc8d1b1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0291b4a47f6ea9785c4437fc628c7021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知代数式
,
,从第三个式子开始,每一个代数式都等于前两个代数式的和,
,
,…,则下列说法正确的是( )
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ec5d76db9bd05547932966c9913dc2.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0eb05aee57a55726e7b2d9040ddd934.png)
③前2024个式子中,a的系数为偶数的代数式有674个
④记前n个式子的和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/917015f662d9b2a79109d210bb359c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7ace22529df84bcad9c7970531cf98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c971be2609f32ad7a2cf89722b53bd95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fe61f0f470da03e14fd7478a946844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b6e7baea1e6b267d818ee19d2c88e5.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85291773c3912bd43a1c50e1a397b68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ec5d76db9bd05547932966c9913dc2.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0eb05aee57a55726e7b2d9040ddd934.png)
③前2024个式子中,a的系数为偶数的代数式有674个
④记前n个式子的和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/917015f662d9b2a79109d210bb359c3c.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
名校
8 . 如图,
的一条直角边
在
轴上,双曲线
经过斜边
的中点
,与另一直角边交于点
.若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.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/ad49e1e8c70f06bc3e95d912d564127b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.12 | B.10 | C.8 | D.6 |
您最近一年使用:0次
9 . 如图,四边形
是矩形纸片,
.对折矩形纸片
,使
与
重合,折痕为
;展平后再过点B折叠矩形纸片,使点A落在
上的点N,折痕
与
相交于点Q;再次展平,连接
,
,延长
交
于点G.有如下结论:①
;②
;③
;④
是等边三角形;⑤点P为线段
上一动点,点H是
的中点,则
的最小值是
.其中正确结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/f17b72caf8dfd80ddce80937781f8871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5564681937f41e1489d69b20a71f9222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd1eec8634d0b05905ad8888ef1f0c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234cdeeee94033501fca6596894f7b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d1d30450eeeafbb0f3021d53b580a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
A.5个 | B.4个 | C.3个 | D.2个 |
您最近一年使用:0次
名校
10 . 已知代数式
,第一次操作将
作为新的x代入
中化简后得到新的式子记为
,第二次操作将
作为新的x代入
中化简后得到新的式子记为
,第三次操作将
作为新的x代入
中化简后得到新的式子
…以此类推重复上述操作,以下结论中正确的有( )
①
;
②若
,则
;
③不存在整数x使得
的值为负整数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8788b6c813805d5a3504e819f74fffd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8788b6c813805d5a3504e819f74fffd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8788b6c813805d5a3504e819f74fffd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9daa860d8e6d52459b36bad95203e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4016695dd2759e5be4087f189030f013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bca0ee8d9a9c2729e0c2a4ff165cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faf13e9e5270d16cdd77fa6e9ad92bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1282962a17a48a18edf733204054d67.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66eeeab6eac5fca90da5dc980b8f162a.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a1a4025e867cbf2e7bc1749f0a0d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec0e2446466ab7074a82cf55d9e1ac1.png)
③不存在整数x使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1409b4921d3a7dc352f339761fd4966e.png)
A.0个 | B.1个 | C.2个 | D.3个 |
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