［复习说明］ 空间角是高考中的热点，在近五年高考中，涉及到空间角的试题年年都有，见下表： 所以在复习时要高度重视，掌握空间角的各种求法．在解题时，不能仅写计算过程，立体几何汁算题的评分标准中，推理部分所占分数较多，必须写清写明推理过程，但不少考生只注意计算? [Review] Space angle is a hot spot in the college entrance examination. In the recent five years of college entrance examination, questions involving the spatial angle are available year after year, as shown in the following table: Therefore, when reviewing, we must pay great attention to the various methods of spatial angle learning. When solving a problem, it is not possible to write only the calculation process. In the scoring standards of the three-dimensional geometric solution, the inference part accounts for more scores, and the reasoning process must be written clearly. However, many candidates only pay attention to calculations.