合理地使用与保养好口哨,能促进课堂教学地有效实施,提高课堂效率与质量,顺利完成教学任务。因此,教师要养成日常清洁保养口哨的习惯,这样不仅能够确保哨音清脆明亮,而且能保证口哨清洁卫生,有利于促进自身健康。 Reasonably use and maintain a good whistle, can promote the effective implementation of classroom teaching, improve classroom efficiency and quality, the successful completion of teaching tasks. Therefore, teachers should develop the habit of daily cleaning and maintaining the whistle so as to not only ensure that the whistle is crisp and bright, but also ensure that the whistle is clean and sanitary, so as to promote self-health.