for + 一段时间,通常与现在完成时连用,但是有时也可以与一般过去时,一般现在时,一般将来时或者现在完成进行时连用.比如: I slept for eight hours last night. 昨天晚上我睡了八小时. He was banished to an uninhabited island for a year. 他被放逐到一个无人居住的荒岛一年. The shop is closed for a week. 这家商店停止营业一个星期. We are staying there for a week. 我们将在那里待上一个星期.