Generally speaking, Zhang Xiaodong is very good, and the content of this set of questions is really detailed. As a set of middle school questions, it is really difficult, and it is considered difficult to disadvantage upper-middle school students. It has more reference value for selecting talents from 985 or even Qingbei. Although this person is bloody, it is also worth encouraging. I hope that the novelty of the Beijing senior high school entrance examination papers will be slightly lower in the future. After all, not everyone can get on 985.

On the whole, there is no one to simulate the difficulty of this set of papers. Take the title of 20 19 Xicheng No.2 module as an example, the difficulty of this set of questions is not increased by the last two questions, but the average difficulty of the third question of quadratic function is higher, and it is really powerful to write it in a limited time (at least 985 level). However, Zhang Xiaodong's set of questions is very different, and the difficulty of choosing and filling in is increasing, which is unprecedented.

The problem of finding the root becomes a problem, and the last problem of a function is more difficult, as is the last problem of a quadratic function. I didn't understand the geometric synthesis directly. In all fairness, the new definition is not very simple. The first question asks arc length, the second question is more difficult than usual, and the third question is medium. So the whole set must be a set of questions, and the average score 15+ should not be a problem.

Zhang Xiaodong:

Born in August, 1974, graduated from Shanghai Normal University, member of NLD, rookie of Zhejiang teaching field, first-class coach of China Mathematical Olympics, master of mathematics education of Zhejiang Normal University, director of Tongxiang Mathematical Society, and academic leader of Tongxiang City.

Editor-in-chief of New Mathematics Strategies for Senior High School, Big Classroom for Famous Teachers, participated in the compilation of Basic Knowledge for Senior High School, Holiday Tutorial and other ten Yu Ben, and won the 19 and 20th Hope Cup Proposition Award. I have participated in the proposition of the final thesis of the first model, the second model and the fourth model in Jiaxing for many times, made a special report at the teaching seminar of senior three in four cities, and made a special report in Mathematics Bulletin and Mathematics and Science.

Two papers won the second prize in Zhejiang Province, and four papers won the first prize in Jiaxing City, presiding over Jiaxing City and Tongxiang City. He won the first prize of high-quality curriculum evaluation of senior high school mathematics teachers and the first prize of double-high curriculum evaluation, and participated in the professional knowledge competition of senior high school mathematics young teachers for 4 times, winning the first prize (top 3) each time.