在准确把握基本知识和方法的基础上做一定量习题很有必要。对于中档题,尤其要讲究做题的效率,这就需要你在做题后进行反思,思考本题所用的基础知识和数学思想方法是什么,为什么要这样想,是否还有别的想法和解法,本题的分析方法与解法在解其他题时是否也用到过。将它们联系起来,你就会得到更多的经验和教训。更重要的是你 It is necessary to do a certain amount of exercises on the basis of accurately grasping the basic knowledge and methods. For the mid-range problem, in particular, to pay attention to the efficiency of doing the question, which requires you to reflect on the problem, think about the basic knowledge and mathematical thinking of the problem is what, why think so, is there any other idea reconciliation, The problem analysis method and solution in the other questions whether also used before. Link them and you get more experience and lessons. More important is you