解填空题中,分析几何图形和函数图象的性质很重要,常常能由此找到解题捷径和突破难点的关键,而且其中的推理过程又不必写在卷面上,因此有事半功倍的效果. It is very important to analyze the properties of geometry and function images. It is often the key to solve shortcuts and breakthrough difficulties, and the reasoning process does not have to be written on the surface of the documents. Therefore, there is a multiplier effect.