做时间的主人主题班会
猜谜语猜谜语 世界上哪样东西最长又是最短的,最快又是最慢的,最能分割又是最广大的,最不受重视又是最值得惋惜的;没有它,什么事情都做不成;它使一切渺小的东西归于消灭,使一切伟大的东西生命不绝。做时间的主人——七(2)班主题班会说一说:说一说:关于时间的名言关于时间的名言追溯历史追溯历史说一说古代计时工具及用法。说出古代计时工具的名字及用法。日晷(guǐ)又称“日规”,是我国古代利用日影测得时刻的一种计时仪器。在晷面的正反两面刻划出12个大格,每个大格代表两个小时。当太阳光照在日晷上时,晷针的影子就会投向晷面,太阳由东向西移动,投向晷面的晷针影子也慢慢地由西向东移动。于是,移动着的晷针影子好像是...
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