七年级生物下册4.1.3《青春期》预习课件(新版)新人教版.ppt

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第三节 青春期,你是如何与同学相处的? 你是否照镜子越来越频繁了? 你收到异性示好的礼物怎么办?,你和你的同龄人都在步入一个重要的发育时期青春期。,0-1岁,1-6岁,6-10岁,10-20岁,青春期的身体变化,婴儿期,幼儿期,童年期,青春期,成年期,24岁后,早晨醒來,青春期的身体变化,月经周期的出现,标志着女性具有了生殖的能力。,青春期的身体变化,青春期的身体变化,内心世界渐复杂,有的事情不想跟家长交流,青春期的心理变化及其卫生,青春期还有哪些心理变化?,青春期的心理变化及其卫生,青春期的心理变化及其卫生,1.每天要用温水清洗外阴部,使用的毛巾和盆要清洁。 2.要使用清洁卫生巾 。 3.避免着凉。 4.要做到心情舒畅,情绪稳定。 5.要有足够的睡眠和休息。 6.进行适当的运动,但要避免 剧烈运动。,月经小知识,青春期正是学知识、长才干、树立远大理想、塑造美好心灵的关键时期。大家应当集中精力,努力学习,健康地度过这人生的金色年华!,

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