初二 英语 in,on,after,at等用在时间前的介词的用法 请详细解答,谢谢...答:in 1976,in March, in spring, in the morning, in the afternoon,in the evening (2)后面加:星期,具体的某一天的什么时间 on Saturday , on March 1st, on the rainy morning (3)at加:具体的时刻,在几点钟:at 4 o'clock (4)after:加餐名,时间段,时间状语从句,及固定搭配 afte...