在《音调、响度、音品》一节教学中,引入新课时,我首先复习了纯音、基音、泛音、复音这四个概念。然后,利用同学们熟悉的笛子奏出一组谐和音和不谐和音,让同学们在听觉上对噪音和乐音加以区别。对噪音控制的研究工作,许多国家都在大力发展,形成一门新学科叫噪音控制学。对乐音人们常常根据音调的高低、响度的大小以及音品的不同来区别不同的声音。 In the teaching of “Tone, Loudness, and Tone”, when introducing a new lesson, I first reviewed the four concepts of pure tone, fundamental tone, overtone, and polyphony. Then, using the flute that students are familiar with, a set of harmonics and dissonance sounds are played out to make the students audibly distinguish between noise and music. Research on noise control has been vigorously developed in many countries to form a new discipline called noise control science. Often, people often distinguish between different sounds based on the pitch, the loudness, and the type of sound.