Commentator: Zhang Aiping, the academic leader of Nanjing, a teacher of Jinling Huiwen School.

This year's examination of the methods and abilities of highlighting the test papers in the senior high school entrance examination in Nanjing shows that the structure of the test papers is relatively stable and difficult.

The examination paper provides rich realistic situations for candidates. PM2.5 in the second question, annual salary of company employees in 13 question, students' sports test scores in the 20th question, badminton competition in the 2nd question1question and automobile sales in the 25th question are all familiar backgrounds for candidates. Most of the test questions in the whole volume can be found in the textbook, which reflects the fairness of the test paper. The test questions are from easy to difficult, forming a gradient. The proportion of easy questions, medium questions and difficult questions is about 7∶2∶ 1. Two or more short answers are set for the last few questions of the test paper, which makes the entrance of the test paper wider, constructs appropriate steps for students to solve problems, and ensures the discrimination of the test paper.

In addition, the test paper pays attention to the application of accumulated experience in mathematical activities in the learning process of candidates. For example, 23 questions, look at pictures and tell stories, and give a function image that candidates are very familiar with in their usual study. Candidates are required to write a function example that meets a specific relationship directly from the image to examine their understanding of the essence of the function in the learning process. Question 26 reproduces a common scene in the usual learning process-the teacher corrects a student's "Xiao Ming" to solve a problem, points out the problem of "Xiao Ming" with some marks, asks candidates to identify the problems in the process, and uses the existing knowledge to improve the process, and finally extends and expands the knowledge in the topic. This kind of examination examines the ability of candidates to find mistakes, correct mistakes and expand their knowledge in their usual study. (Source: People's Network Jiangsu Window)