1背景考后,偶得一名考生对2015年北京中考数学试题第29题几何综合题目的评论,从而引发了笔者的思考.研读之后,确有几点想法想与大家交流,算是抛砖引玉,供大家讨论.为方便交流,现把题目和评论转载于下(对评论中的部分标点符号进行了修改):原题在正方形ABCD中,BD是一条对角线.点P在射线CD上(与点C,D不重合),连接AP,平移△ADP,使点D移动到点C,得到 1 background test, I was even a candidate for the 2015 Beijing senior high school entrance examination math test 29 questions geometric synthesis of comments, which triggered the author’s thinking. After studying, do you have some ideas you want to communicate with, be regarded as offering, for For the convenience of communication, the subject and comment are now reproduced below (some of the comments in the punctuation have been revised): The original title in the square ABCD, BD is a diagonal line point P on the ray CD (and Point C, D do not overlap), connect AP, shift △ ADP, move point D to point C, get