声学和光学在中考中所占比重不是很大,一般为卷面分数10%上下。但是由于声、光现象为我们熟知并渗透在生产生活中,所以中考时此类试题往往具有很强的时效性和创新性,在考察同学们基本知识的同时,也能较好地考查同学们的科学素养能力。在复习时应注意对知识板块的梳理,做到高效而简洁,这样才能事半功倍。 Acoustics and optics in the proportion of the examination is not large, usually about 10% of the roll surface. However, due to the sound and light phenomena we are familiar with and infiltrated in the production and life, so when the exam in the examination of such questions tend to have strong timeliness and innovation, students in the basic knowledge, but also to better test the students The ability of scientific literacy. In the review should pay attention to sort out the knowledge plate, be efficient and concise, so as to be more effective.