1.防止外伤。人的听觉是由声波传入耳内,引起鼓膜的震动而产生的。鼓膜很薄,承受不了多大的压力。因此,从小防止外伤是保护儿童听力的重要措施。挖耳或击耳都可能引起听力衰退。2.防止入水。小孩耳中入水,易引起耳疾(发炎、流脓)。给婴幼儿洗头、洗澡时更要注意防止耳中进水。3.避开强声。通常把一般人刚刚能听到 1. To prevent trauma. Human hearing is caused by the sound waves into the ear, causing the tympanic membrane vibration. Tympanic membrane is very thin, can not withstand much pressure. Therefore, childhood prevention of trauma is an important measure to protect children’s hearing. Digging ears or ears may cause hearing loss. 2 to prevent water. Children ear into the water, can cause ear disease (inflammation, pus). Shampoo for infants and young children, bath should pay attention to prevent ear water. 3. Avoid strong sound. Normal people just hear it