介词in、on、at在节日前的用法

介词in、on、at在节日前的用法

题目
介词in、on、at在节日前的用法
为什么要at Christmas?in the morning……on 1st May?
答案
【in】我是“大姐”,因为我后面所接的都是较长时间.具体用法有:
1. 表示在较长的时间里(如周/月份/季节/年份/世纪等).如:in a week; in May; in spring/summer/autumn/winter; in 2008; in the 1990’s等.
2. 表示在上午、下午或晚上.如:in the morning/afternoon/evening.
3. in the daytime(在白天) 属于固定搭配,指从日出到日落这一段时间,反义词组是in the night.
4. “in + 一段时间”表示“多久以后/以内”,常与将来时连用.如:in half an hour; in ten minutes; in a few days等.
【on】我是 “二姐”,我后面所接的时间多与日期有关.具体用法有:
1. 表示在具体的某一天(如日期、生日、节日或星期几).如:on May 4th,1919; on Monday; on Teachers’ Day; on my birthday; on that day等.
2. 表示某一天的上午、下午或晚上.如:on the morning of July 2; on Sunday afternoon; on a cold winter evening等.
【at】我是“小妹”,因为接在我后面的时间最短.具体用法有:
1. 表示在某一具体时刻,即几点几分.如:at six o’clock; at half past nine; at a quarter to six; at this time等.
2. 表示在某一短暂的时间.如:at noon; at this moment; at the end of a year; at the start of the concert等.
用介词at、on、in填空
1.He came to my family _______ May,1999.
2.He got home _______ midnight.
3.Tree leaves begin to fall _______ September.
4.He went to Beijing _______ the morning of October 8th.
5.This matter happened ______ the 1970’s ______ his eighties.
6.He usually goes to see a film ______ Sunday.
7.Can you finish the task _______ a month?
8.He left his homeland _______ the age of thirty.
9.My family will move there ______ two months.
10.He is kind to her ______ times.
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