名校
1 . 已知抛物线
,当
时,
;当
时,
.下列判断:
①
;②若
,则
;③已知点
在抛物线
上,当
时,
;④若方程
的两实数根为
,则
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b288ab1b2e56fd8a11d0a766d9fe0657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3634f7607140d0751fc020f701a1270e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4cc00c283519973f7f8e1274b5c733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc863004a6fedab9a38c96e7dabe90b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd931b890715d1b8c079c3df760fb782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b288ab1b2e56fd8a11d0a766d9fe0657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c959f66cc10bf1420eac249e74d2009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83cb3b6dacb13f2b792e7c14a8f84be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d854a1e025a926f5d1d7e00aa5c121a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c556b35e2216aeb5b7d8b1b4c140da.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
2022高一·全国·专题练习
2 . 如图,
中,
,
,
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/9/2d57211a-b060-49be-8f66-09633f731aa1.png?resizew=205)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b8ce6c4cffb34136594d6ea2a5d9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4646eb4629bf69d5af63f187ff5dbef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fdec605d01141e3610aa337b4bd7fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/9/2d57211a-b060-49be-8f66-09633f731aa1.png?resizew=205)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022高一·全国·专题练习
3 . 如图,
,下列比例式正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/0146933b-6a7a-4d60-bfdd-a78a35a7dab1.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22d591c785a560e84566b27150d068f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/0146933b-6a7a-4d60-bfdd-a78a35a7dab1.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 如图
,正方形
中,
,
相交于点
,
是
的中点.动点
从点
出发,沿着
的路径以每秒
个单位长度的速度运动到点
,在此过程中线段
的长度
随着运动时间
的函数关系如图
所示,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688786432/STEM/06dcda58586b476ea74a4437168370fd.png?resizew=402)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c042ff18466e8165fadf343d142a4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f368df8b8fde80254d22e417be5e90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80672dda9430cb42b3136bcb1b67bbad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688786432/STEM/06dcda58586b476ea74a4437168370fd.png?resizew=402)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022高一·全国·专题练习
5 . 如图,在
中,
为斜边
的中线,过点
作
于点
,延长
至点
,使
,连接
,
,点
在线段
上,连接
,且
,
,
下列结论:
;
四边形
是平行四边形;
;
.
其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688557056/STEM/eeb7952c8f9448fba337e40d77eae234.png?resizew=210)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42798067d911f96e5784cb138319c907.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc0613441dac089635db3d6efd4aeb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62032a673b594a026f7c90ad4da96f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8b62dc033d86ee9e561b8903796701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8d84b2d6b0aa45ddc18ba5edff96a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18b19271fa78e1585ed58dccdf97543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d976694e71d862d92887825edeef88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc1b26b67f4f23b11b00bae697ae899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320af9939f5875bf04689e72b4e92630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f419baa67e9700584593376200bb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20a45f0613c3aa8a8e78363d670ce6c.png)
其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003467511963648/3006418688557056/STEM/eeb7952c8f9448fba337e40d77eae234.png?resizew=210)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 如图,
是
的角平分线,
,
分别是
和
的高,得到下列四个结论:
;
;
当
时,四边形
是正方形;
其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/79d11a05-a930-4487-84d7-404a09506585.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442774b9275a7e69ad8e43845a0617a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e9ded7a7207739774429a6a8622143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f406938646313cb78804e1095636c2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/79d11a05-a930-4487-84d7-404a09506585.png?resizew=181)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2022高一·全国·专题练习
7 . 已知抛物线
经过点
,且对于抛物线上任意一点
都有
,若点
均在这条抛物线上,则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7173a263183ac59f1120b3ca17674405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5ed99e574380fdcf040dc76166055c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429f0d03e290d43a3b683c869a6e946d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c6654220eb2d58e29d2cd135ddc20e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e573d18d78921e072e384d0d01d488.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022高一·全国·专题练习
8 . 二次函数
图象上一点
,当
时,存在
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f20758d5ec10cee675e0a8d0634e9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdcfb92f8e5db74edc4aeaaf4649dbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ddf7a77f9961af4c20f2468091754b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 下列结论中: ①若
, 则
;②若
, 则
的值为
; ③若规定: 当
时,
, 若
, 则
;④若
, 则
可表示为
; ⑤若
的运算结果中不含
的一次项, 则
. 其中正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a90283b52c5c93926018685da7e3337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41051a1d04e69df5a8d7c4fb3766729f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49d39926eb56fe04180290a72b3db28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65dcd8790e1d3c11adec3a8a45924af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae9ba258299eb489b490594397e23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc9129493d8b120d3d891d4737b28cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b10b6d1e5cf3cf6e2b437e6e241c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d885b715677509354ccd6319b7eeb7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56c095638f2cc31baa2b22ecbaaf385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8baecf40d9b8d6771dfb7fd64c66c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa6ece41e260ac9503bfa92b0189360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
A.5 | B.4 | C.3 | D.2 |
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10 . 如图,四边形ABCD是由四个全等的直角三角形拼成.若四边形ABCD的面积为13,中间空白处的四边形EFGH的面积为1,直角三角形的两条直角边分别为a和b,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/f808f737-2ac1-4002-bb8d-cd205065a721.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73535eacf88079e8a713a5454750e51.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/f808f737-2ac1-4002-bb8d-cd205065a721.png?resizew=178)
A.12 | B.13 | C.24 | D.25 |
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