Ⅰ.during 和in 二者都表示某事的发生贯穿于某段时间中,或发生在某段时间 中的某一点上或几点时间上。 在多数情况下,当我们不强调对比或某一段时间时,in 和during都可以用,意思上并没有什么区别。当我们要表达某事具体发生的时间时, 多用in.当我们指一项活动而不是一段时间时,只能用during, 另外during 还用来强调某动作持续了一段时间。如:
① I woke up three times in / during the night. 夜里我醒了三次。
② He had some amazing experience in / during his childhood. 他童年时有一些惊人的经历。
③ We usually go on holiday in July. (不能用during) 我们通常七月份度假。
Ⅱ.during 和for. 两者都是表示一段时间的介词。
1. during 意为:“在……(时间)内”的行为或状态,与一段时间的整体连用。如:during the spring, during last year, during 1980等也可以和表示延续性事件的名词连用,如:during my childhood, during our stay, during his visit等,一般不用于现在完成时的句子里。如:
① During the winter we play fotball. 冬季我们踢足球。
② Many comrades went to see him during his illness. 在他生病期间许多同志去看望了他。
2. for引导一段时间,强调时间由始至终,可译为“(时间)长达……”一般与有长度的时间短语连用,如for three weeks. For a long time等,可用于现在(过去)完成时或过去时句子等。 如:
① He studied English for three years. 他学了三年英语。
② The French teacher has been in China for about a month.
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