(3)“名词 + 介词要注意习惯搭配和意义区分。
3、核心介词用法归纳与辨析
(1)表示时间的介词in的用法如下。
表示在某一较长时间内,如世纪、年、月、季、周等一般用介词in,
如:in the 1990s, in the year, in January, in(the) winter / summer / fall / spring, in the first week of May。
还可以用时段名词组成固定短语或词组。如:in a while, in no time, in the daytime, in a short while, in time, in the morning (afternoon, evening)。但要注意:
①at night / at noon, in the day(在白天),in the night(大夜间)。
②in five days(weeks, months, years)中in意思是“在……以后。
③in和during表一段时间内两词可互用。如:in the night, during the night, in the war, during the war。但略有区别:当接表示“活动的抽象名词时多用during,接“活动的动名词及短语时用in。如:
(2)在具体的某一天或某天上午、晚上、前夕,常用on。
(3)表示某一时刻或某一点时间用at,如小时、分钟等。
at breakfast(supper, lunch),at six
at noon (sunrise, sunset, midday, night, midnight, dawn)
at the age of 15, at the time of war,但in time of danger/ trouble。
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