精选优质文档-倾情为你奉上介词表时间的介词1 at, on, inat表示“在某一时刻,某一时点”I get up at 6:00 every day. at daybreak在黎明;at noon在中午;at night在夜间;at Christmas在圣诞节期间;at the age of five在五岁时on表示“在具体某一天或某天的上、下午”I heard a shot on (the morning of ) March 18. We dont have classes on Sunday. in表示“在某世纪、年、季度、月、周”以及泛指的上、下午、晚上in the 20th century;in 1999;in winter;in September;in the morning/afternoon/evening 2 for, during, throughfor后接“一段时间”,表示某事持续多久,多与完成时连用She has been ill for several days.duri