纵观以往高考试题,生物实验是理综高考的难点,在往年高考中学生的失分率较高,造成这种情况的主要原因是学生没有掌握好课本中的实验,但实验的掌握并不是仅靠高中三年时间就能掌握得很好的,而必须是要通过长期的积累。在新课程改革中,高中生物教材有了很大的变化。《普通高中 Throughout the college entrance examination questions in the past, biological experiments is the difficulty of science college entrance examination in the college entrance examination in previous years, the higher the loss rate of high school students, resulting in this situation, the main reason is that students did not master the textbook experiment, but the experiment is not mastered By high school three years can master well, but must be through the long-term accumulation. In the new curriculum reform, high school biology textbooks have undergone great changes. "normal high school