Test and analysis: Welcome to Beijing is rich in modern musical elements, and it is written in five modes: China Ancient Palace, Shang, Jiao, Qian and Yu. It shows that the integration of tradition and modernity has been realized. Therefore, choose item D in this question. A traditional culture has a strong vitality, which means that the traditional culture continues to this day, and excellent traditional culture still plays an important role. B excellent culture has unique appeal and appeal, which shows that excellent culture shapes life. Can enhance mental strength. Item C: Social practice is the source of cultural innovation, which means that cultural innovation should be based on social practice. Therefore, ABC is not talking about the integration of tradition and modernity, and it should be ruled out if it does not meet the meaning of the question.

Comments: This is a multiple-choice question with "this" in it. This kind of questions is often examined in the college entrance examination, which needs attention. The key to solving the problem is to find out the "reference" of "this" in the material, otherwise it is very likely to be wrong.