一、由所给的几何体判断三视图的形状例1 (2006年云南省)如图,这个几何体的俯视图(从上面看到的平面图形)是()例2(2006浙江省宁波市)如下图,水平放置的圆柱形物体,中间有一细棒,则此几何体的左视图是( )答案例1(B),例2(B)二、由几何体的三视图,想象出几何体的形状,说出组成几何体的基本图形个数例3 (2006年山西省临汾市)某展厅内要用相同的正方体木块搭成一个三视图如下的展台,则此展台共需这样的正方体块为()(答案B) I. Judging the shape of the three views from the given geometry Example 1 (Yunnan Province, 2006) Fig. The top view of the geometry (the planar pattern seen from above) is () Example 2 (2006, Ningbo, Zhejiang Province) Horizontally placed cylindrical object with a thin rod in the middle, the left view of this geometry is () answer example 1 (B), example 2 (B) two, from the three views of the geometry, imagine the shape of the geometry, say The number of basic graphics that make up the geometry Example 3 (Linyi City, Shanxi Province, 2006) To use the same cube blocks in a certain exhibition hall to create a booth with three views as follows, a total of such cubic blocks are required for this booth () (Answers B)