名校
1 . 已知空间中两条不同的直线
和平面
,给出三个论断:①
;②
;③
.请以其中两个论断作为条件,另一个为结论,写出一个真命题:若________ ,则________ .(填写相应序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
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10-11高一下·福建厦门·阶段练习
2 . 若
为一条直线,
为三个互不重合的平面,给出下面三个命题:
①
;②
;
③
;④
.
其中正确的命题有___________ .(填写序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffd9b00e1e34cff33205e6664a4a0ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f24853318939dde39642c5cf6e2030.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513b618843be04ef9dc474eca1ca5b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b24968f8c904707deb7c490606bb03.png)
其中正确的命题有
您最近一年使用:0次
解题方法
3 . 已知两条直线
和三个平面
,给出下面四个命题:
①
;
②
;
③
;
④
.
其中正确的命题是__________ .(请填写所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fe8ab8622d34a9f9400a29c86d4a48.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b355c4bab2b1210c7a8b7ff5ceda887.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7b2208e810d9d35daa0e3603653250a.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4adccf0d84b27fe47c957e4579fe8e.png)
其中正确的命题是
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4 . (1)如图①,已知梯形
中,
,
,
平面
,画出平面
与平面
的交线.
(2)如图②,点E是
的中点,画出平面
与平面
的交线.
![](https://img.xkw.com/dksih/QBM/2021/10/15/2830071373586432/2830487713726464/STEM/199bc5bc4f214c6288d28d68a71d7ea3.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a69df64811eb0866c84207f24dfae99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)如图②,点E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://img.xkw.com/dksih/QBM/2021/10/15/2830071373586432/2830487713726464/STEM/199bc5bc4f214c6288d28d68a71d7ea3.png?resizew=199)
![](https://img.xkw.com/dksih/QBM/2021/10/15/2830071373586432/2830487713726464/STEM/9155d5f5199c45c1a226570c91c4aeb4.png?resizew=173)
您最近一年使用:0次