墨尔本文波雅思为大家视频讲解动词时态中过去完成时的语法应用。

过去完成时：  形式：had done

含义：1.一件事情发生在过去，而另外一件发生在过去的过去。

2. 从过去某一时间开始，一直延续到过去的另一时间的动作。

国外烤鸭看这里：

国内烤鸭看这里：

3. Hardly /scarcely / barely had… done…when…

No sooner had…done…than…

从句一般过去时，主句过去完成时

4．It was+一段时间+since从句

It had been+一段时间+since从句

Since从句用过去完成时

5．That was the first time+that从句

It was the first second time+that从句

That从句谓语用过去完成时

                       6．表示愿望，打算一类的词，hope expect mean intend want think suppose,过去完成时表示过去未曾实现的愿望或意图

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填空（用现在完成时或过去完成时）

1. A: Oh no! we’re too late. The train (leave, already)___________________.

B: That’s Okay. We’ll catch the next train to Athens.

1. Last Thursday, we went to the station to catch a train to Athens, but we were too late. The train (leave, already)_______________.
2. A: Go to sleep. It’s only six O’clock in the morning.

B: I’m not sleepy. I (sleep, already)____________________for eight hours. I’m going to get up.

1. I woke up at six this morning, but I couldn’t get back to sleep. I wasn’t sleepy. I (sleep, already)__________ for eight hours.
2. A: I’ll introduce you to Professor Newton, but it wasn’t necessary. I (meet, already)____________him.
3. Jack offered to introduce you to professor Newton, but it wasn’t necessary. I (meet, already) ________________________him.

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