1. Math competitions: For example, the National Mathematical Olympiad for Middle School Students and the National Junior Math Competition can improve students' mathematical thinking ability and problem-solving ability.
2. Physics competitions: such as the China Physics Olympic Competition and the National Youth Physics Competition, can cultivate students' physical experiment and theoretical analysis ability.
3. Chemistry contests: For example, the national chemistry contest for middle school students and the national chemistry contest for teenagers can improve students' chemical experiments and theoretical knowledge.
4. Biological competitions: such as the national middle school students' biological competition and the national teenagers' biological competition, can cultivate students' biological experiment and scientific inquiry ability.
5. English contests: For example, the national English proficiency contest for middle school students and the national English speech contest for teenagers can improve students' English listening, speaking, reading and writing abilities.
6. Computer competitions: such as the National Informatics Olympic Competition for Middle School Students and the National Computer Application Competition for Teenagers. These competitions can cultivate students' computer programming and problem-solving skills.
7. Literary creation competitions: such as the national composition competition for middle school students and the national poetry reading competition for young people, can improve students' writing and expression skills.
8. Sports competitions: such as track and field competitions, basketball competitions and football competitions. These competitions can cultivate students' sports skills and teamwork spirit.