【五分钟语法小课堂】你还在乱用介词 at，on，in吗？

语法规则：

下面是三种常见表示时间的介词：

• at表示具体时间。
• on表示某一天，日期。
• in后接某日，某月，某年，世纪，一段时间。

例句：1.The shop opens at the 10 am. 2.Your research paper is due on Friday, June 10th. 3.My birthday is in August. 4.I wake up early in the morning.  练习：用正确的时间介词填空：[list=1]

This 2018 FIFA World Cup Tournament will begin ______June 14th.

He came back ___________midnight last night.

Jason was born_____ 3 o’clock ________the morning _________ April 10th, 1994.

We often go to the beach ______ the summer.

I took the stairs, and he took the elevator, but we arrived ______the same time.

参考答案:[list=1]

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