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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,#,二十四时计时法,脑筋急转弯,小明和小红约好周六,8,时,到电影院门口见面。他们俩都按时去了同一个电影院门口,但是却没有见到面。你知道为什么吗,?,上午,8:00,中午,12:00,晚上,8:00,你知道这是一天中的几时吗,?,像这样需要在时刻前面加上,“,上午,”“,中午,”“,晚上,”,等时间词才能清楚地表示时间的方法,是我们日常生活最常用的计时方法,叫做,普通计时法,。为了计时简便不易出错,就采用一种新的计时方法,知道吗?在哪里见过?,12,9,1,8,7,6,4,3,2,5,11,10,0,起床啦!,12,9,1,8,7,6,4,3,2,5,11,10,12,9,1,8,7,6,4,3,2,5,11,10,第一圈:从()时到()时;,即从()时到()时。,0,中午,12,12,深夜,12,0 1 2 3 4 5 6 7 8 9 10 11 12,12 1 2 3 4 5 6 7 8 9 10 11 12,深,凌 凌 凌 凌 凌 早 早 早 上 上 上 中,夜 晨 晨 晨 晨 晨 上 上 上 午 午 午 午,12,9,1,8,7,6,4,3,2,5,11,10,12,小时,12,9,1,8,7,6,4,3,2,5,11,10,0,1,2,3,4,5,6,7,8,9,10,11,12,12,9,1,8,7,6,4,3,2,5,11,10,13,0,1,2,3,4,5,6,7,8,9,10,11,12,13,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,15,0,13,14,15,1,2,3,4,5,6,7,8,9,10,11,12,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,15,0,13,14,15,16,1,2,3,4,5,6,7,8,9,10,11,12,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,15,17,0,17,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,15,18,17,0,18,1,2,3,4,5,6,7,8,9,10,11,12,17,14,15,16,13,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,0,1,2,3,4,5,6,7,8,9,10,11,12,19,13,18,17,15,16,14,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,20,0,20,1,2,3,4,5,6,7,8,9,10,11,12,19,13,18,17,15,16,14,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,21,20,0,21,1,2,3,4,5,6,7,8,9,10,11,12,19,13,18,17,15,16,14,20,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,21,22,20,0,22,1,2,3,4,5,6,7,8,9,10,11,12,19,13,18,17,15,16,14,20,21,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,23,21,22,20,0,23,1,2,3,4,5,6,7,8,9,10,11,12,22,19,13,18,17,15,16,14,20,21,12,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,24,23,21,22,20,0,24,1,2,3,4,5,6,7,8,9,10,11,12,22,19,13,18,17,15,16,14,20,21,23,12,第一圈:从()时到()时;,即从()时到()时。,第二圈:从()时到()时;,即从()时到()时。,0,12,深夜,12,中午,12,12,24,中午,12,深夜,12,0 1 2 3 4 5 6 7 8 9 10 11 12,12 1 2 3 4 5 6 7 8 9 10 11 12,深,凌 凌 凌 凌 凌 早 早 早 上 上 上 中,夜 晨 晨 晨 晨 晨 上 上 上 午 午 午 午,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,24,23,21,22,20,12,小时,12,小时,24,小时,12 13 14 15 16 17 18 19 20 21 22 23 24,1 2 3 4 5 6 7 8 9 10 11 12,下 下 下 下 下 下 晚 晚 晚 晚 晚 晚,午 午 午 午 午 午 上 上 上 上 上 上,用,0,时到,24,时来表示一天时间的计时方法叫做,24,时计时法。,100,200,300,400,500,600,700,800,900,1000,11,00,1200,1300,1400,1500,1600,1700,1800,1900,2000,2100,2200,2300,2400,(,000,),凌晨,100,凌晨,200,凌晨,300,凌晨,400,早上,500,早上,600,早上,700,上午,800,上午,900,上午,1000,上午,11,00,中午,1200,下午,100,下午,200,下午,300,下午,400,下午,500,下午,600,晚上,700,晚上,800,晚上,900,晚上,1000,夜里,1100,夜里,1200,有 时 间 词,没 有 时 间 词,100,200,300,400,500,600,700,800,900,1000,11,00,1200,1300,1400,1500,1600,1700,1800,1900,2000,2100,2200,2300,2400,(,000,),凌晨,100,凌晨,200,凌晨,300,凌晨,400,早上,500,早上,600,早上,700,上午,800,上午,900,上午,1000,上午,11,00,中午,1200,下午,100,下午,200,下午,300,下午,400,下午,500,下午,600,晚上,700,晚上,800,晚上,900,晚上,1000,夜里,1100,夜里,1200,去时间词,去时间词,加,12,上午,900,900,下午,400,1600,凌晨,400,400,晚上,900,2100,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,24,23,21,22,20,100,200,300,400,500,600,700,800,900,1000,11,00,1200,1300,1400,1500,1600,1700,1800,1900,2000,2100,2200,2300,2400,(,000,),凌晨,100,凌晨,200,凌晨,300,凌晨,400,早上,500,早上,600,早上,700,上午,800,上午,900,上午,1000,上午,11,00,中午,1200,下午,100,下午,200,下午,300,下午,400,下午,500,下午,600,晚上,700,晚上,800,晚上,900,晚上,1000,夜里,1100,夜里,1200,加时间词,减,12,加时间词,凌晨,300,300,晚上,800,2000,上午,800,800,下午,300,1500,12,9,1,8,7,6,4,3,2,5,13,11,10,14,16,19,15,18,17,24,23,21,22,20,你知道下面钟面上的时间用,24,时记时法,表示是几时吗?,8:00,你知道下面钟面上的时间用,24,时记时法,表示是几时吗?,12:00,你知道下面钟面上的时间用,24,时记时法,表示是几时吗?,20:00,你能用,24,时记时法播报节目吗,?,红领巾广播站,节目预报,上午时分学校新气象,中午时儿童歌曲欣赏,下午时健康教育,下午时科学家故事,上午,8,:,30,下午,5,:,30,早上,5,:,40,晚上,10,:,30,上午,7,:,30,晚上,8,:,30,13,:,37,下午,1,:,37,再后来,人们发明了钟表,记时就越来越准确了,.,经过今天的学习,大家有什么收获?,时间,每天得到的都是,24,小,时,可是一天的时间给勤勉的人,带来了智慧与力量,给懒散的人,只能留下一片悔恨。,-,鲁迅,谢 谢,
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