一、常用介词的意义
1.表示时间的介词 1) in表示“在某一时间段,或“在……某一时候,如用在月、季、年份、时代、世纪等时间名词的前面,或用来泛指一天的某一段时间。 In July/summer/2000/ancient times/the 1999’s In the morning/afternoon/evening In也可以指“在……之后,表示从说话起的若干时间内,如: The bus will be here in ten minutes. 2) On表示“在特定的某一天,也可用于带有修饰语的一天的某个时间段之前。如: on Saturday, on Saturday morning, on the morning of August 1st3) at表示“在某一时间点,或用来表示不确定的时间和短期的假日、时节等。如: at six o’clock, at Easter 4) for表示动作或状态延续的全部时间长度,为“长达……之意; 5) since用于指从过去特定的某个时刻到说话时为止的一段时间;两者往往用于完成时。 I have been there for six years. We have not seen each other since 1993. 6) During指“在……时期/时间内,必须以表示一段时间的词或词组作宾语。 She was ill for a week, and during that week she ate little.6年中考满分作文:粉笔颂
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