6.1.2　点、线、面、体 讲义（学生版+答案版）2025-2026学年数学七年级上册人教版

6．1.2　点、线、面、体 eq \o(\s\up7( INCLUDEPICTURE "知识梳理.tif" INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/知识梳理.tif" \* MERGEFORMAT INCLUDEPICTURE "../../知识梳理.tif" \* MERGEFORMAT INCLUDEPICTURE "../../知识梳理.tif" \* MERGEFORMAT INCLUDEPICTURE "../知识梳理.tif" \* MERGEFORMAT INCLUDEPICTURE "知识梳理.tif" \* MERGEFORMAT ),\s\do5(　　　　　　　)) 知识点　点、线、面、体 点动成线，线动成面，面动成体． 练习　当你用笔在纸上画线时，你的笔尖实现了(　A　). A．点动成线 B．线动成面 C．面动成体 D．以上都不对 总结　点、线、面、体的关系如下： eq \o(\s\up7( INCLUDEPICTURE "课后练习.tif" INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/课后练习.tif" \* MERGEFORMAT INCLUDEPICTURE "../../课后练习.tif" \* MERGEFORMAT INCLUDEPICTURE "../../课后练习.tif" \* MERGEFORMAT INCLUDEPICTURE "../课后练习.tif" \* MERGEFORMAT INCLUDEPICTURE "课后练习.tif" \* MERGEFORMAT ),\s\do5(　　　　　　　)) INCLUDEPICTURE "三角.tif" INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/三角.tif" \* MERGEFORMAT INCLUDEPICTURE "../../三角.tif" \* MERGEFORMAT INCLUDEPICTURE "../../三角.tif" \* MERGEFORMAT INCLUDEPICTURE "../三角.tif" \* MERGEFORMAT INCLUDEPICTURE "三角.tif" \* MERGEFORMAT 基础巩固 1．将下方如图所示的直角梯形绕直线l旋转一周，得到的立体图形是(　D　). INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/SX138.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX138.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX138.tif" \* MERGEFORMAT INCLUDEPICTURE "../SX138.tif" \* MERGEFORMAT INCLUDEPICTURE "SX138.tif" \* MERGEFORMAT eq \o(\s\up7( INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/SX139.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139.tif" \* MERGEFORMAT INCLUDEPICTURE "../SX139.tif" \* MERGEFORMAT INCLUDEPICTURE "SX139.tif" \* MERGEFORMAT ),\s\do5(A)) 　　 eq \o(\s\up7( INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/SX139A.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139A.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139A.tif" \* MERGEFORMAT INCLUDEPICTURE "../SX139A.tif" \* MERGEFORMAT INCLUDEPICTURE "SX139A.tif" \* MERGEFORMAT ),\s\do5(B)) 　　 eq \o(\s\up7( INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/SX139B.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139B.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139B.tif" \* MERGEFORMAT INCLUDEPICTURE "../SX139B.tif" \* MERGEFORMAT INCLUDEPICTURE "SX139B.tif" \* MERGEFORMAT ),\s\do5(C)) 　　 eq \o(\s\up7( INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/SX139C.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139C.tif" \* MERGEFORMAT INCLUDEPICTURE "../../SX139C.tif" \* MERGEFORMAT INCLUDEPICTURE "../SX139C.tif" \* MERGEFORMAT INCLUDEPICTURE "SX139C.tif" \* MERGEFORMAT ),\s\do5(D)) 2．如图所示的几何体是平面图形绕直线l旋转一周得到的，则该平面图形是(　D　). INCLUDEPICTURE "../../../../广东慧源同步上册/广东慧源七年级上册数学/SX140.tif" \* MERGEFORM ... ...