①on表示在具體某一天及具體某一天的上午、下午和晚上。
例 On mother's Day, we should send flowers to our mother. 母親節,我們應該送花給我們的母親。
On my arrival home,I found he had gone already.當我到家時,我發現他已經走了。
On Christmas Day(On May 4th), there will be a celebration.
He arrived at 10 o’clock on the night of the 5th.
in 2004, in March, in spring, in the morning, in the evening, etc
② 當early,late用于句首修飾介詞短語時,盡管表示具體某一天的上午、下午、晚上,都要用in,泛指一般的上、下午,晚上也用in 。
例 Early in the morning of National Day,I got up to catch the first bus to the zoo. 國慶節一清早,我便起床去趕到動物園的第一班公共汽車。
My father begins work at 8:00 in the morning and stops work at 4:00 in the afternoon. 我父親上午8點上班,下午4點下班。
③于将來時态表示“過一段時間後” 及表示“在……期間” 和“在某個季節,某年、某月” 都用in。
例 I hear he’ll be back in a month.我聽說他将于一個月後回來。
In the course of the last lesson in French,little Franz was listening to the master very attentively.在那最後一堂法語課中,小弗朗茲非常用心地聽着老師講。
Xiao Ming was born in December of 2014. 小明生于2014年12月。
注意:after用于将來時間也指一段時間之後,但其後的時間是“一點”,而不是“一段”。
如:
He will arrive after two o’clock.
④當 morning,afternoon,evening有前位定語或後置定語限定時,就不用in而用on。
例 on a hot (summer) noon 在一個炎熱(夏天)的中午
on Monday morning 在星期一上午
on the morning of March 8th在3月8日上午
⑤ 表示某時某刻及在work,Christmas等前用at。較短暫的一段時間。可指某個節日或被認為是一年中标志大事的日子。如:
He went home at Christmas (at New Year, at the Spring Festival, at night).
例 We get up at eight o’clock. 我們8點起床。
My father are busily at work all day. 我父親整天忙于工作。
In western countries children get present from their parents at Christmas. 在西方國家,孩子們在聖誕節得到父親給的禮物。
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