The use of National Paper 1 and National Paper 3 is to ensure the fairness and scientificity of the college entrance examination. Because the examination syllabus and examination difficulty are different in different provinces, if each province uses its own examination paper, it may lead to different difficulty and types of examination questions and affect the fairness of the examination. Therefore, the national college entrance examination proposition group will compile examination papers suitable for the whole country according to the examination syllabus and examination difficulty of each province to ensure the fairness and scientificity of the examination.
Compared with previous years, the types and difficulties of the test questions in the first and third volumes of the whole country have changed, and more attention has been paid to examining students' comprehensive ability and innovative thinking. Among them, the Chinese test questions in the national volume I focus on students' reading comprehension and writing ability, the mathematics test questions focus on students' mathematical thinking and problem-solving ability, and the English test questions focus on students' language use and communication ability. The physics, chemistry and biology questions in the third national volume focus on examining students' experimental ability and scientific thinking.
In a word, Yunnan 202 1 College Entrance Examination uses National I Volume and National III Volume, which have been reviewed many times, ensuring the scientificity and fairness of the examination questions. Candidates need to prepare for the exam carefully and abide by the exam rules in order to get good grades.