[复习说明 ]自从 1 998年春季教育部调整高中数学教学内容以来 ,在近四年全国高考数学文理试卷的解答题中没有单独考查三角函数的变换技巧 ,而是把三角函数同复数、三角形与四边形、函数最值与图象变换联系起来考查 ,那么今后会不会把三角函数 (泛指统编教材代数第二、三、四章 [Review] Since the Ministry of Education in the spring of 998 adjusted the content of high school mathematics teaching, in the last four years, the answer questions of the mathematics and sciences examination paper for the national college entrance examination did not examine the trigonometric function transformation skills alone, but instead combined trigonometric functions with complex numbers and triangles. The quadrilateral, the function’s maximum value is related to the image transformation, but in the future it will not be a trigonometric function (refer to the second, third, and fourth chapters of the textbook