在高三复习的后一阶段,备考师生常采用大量的练习结合课外资料的方法进行复习,试图借此归纳知识,发展能力.然而效果往往不明显.究其原因,是平时在教科书的学习和掌握不好,积累的问题未得到根本性的解决,知识的源头不畅.无目的的训练,机械重复的练习无异于 In the latter stage of the third year of review, preparers and students often use a large number of exercises combined with extra-curricular materials to review, attempting to sum up knowledge and develop their abilities. However, the effect is often not obvious. The reason for this is the usual learning in textbooks. Poor mastery, the problem of accumulation has not been fundamentally solved, and the source of knowledge is not smooth. No purposeful training, mechanical repetition exercises are tantamount to