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例如:

On Christmas Day

On the night of March 10

At+时间点

例如:

At 3 o′clock at the harvest time

固定词组

at night at last at first at once

at this time of the year at the beginning of

at the same time

注意:在表示时间里,下列情况下一般不用介词:

next/last/this/that/tomorrow/yesterday/one/every/all以及the day before yesterday和the day after tomorrow前不用介词。

例如:不能说in tomorrow 只能说tomorrow

(2)for+时间段

Since+过去的时间点/或者表示过去式的从句,这两种都表示“延续的一段时间”,常与完成时态连用。

例如:

He has lived here for ten years.

He has lived here since 1991.

He has lived here since he left school.

(3)在…之后

In+一段时间(用于一般将来时)

After+一段时间(用于一般过去时)

After+一点时间(常用于一般将来时)

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