美联英语提供
?/p>
英语语法
-
学英语必看英语语法手?/p>
(
?/p>
)7
关于英语那些你不知道的事都在这里
http://m.meten.com/test/quwen.aspx?tid=16-73675-0
扫过了,
我们可以把东西搬进去了?/p>
(
强调最终结?/p>
)You look so tired. What have you
been doing?
你看来很累的样子,你干什么来着
?(
强调直接结果
)
过去完成进行?/p>
(past perfect continuous tense)
1)
过去完成进行时的形式一律为
had been +
现在分词,无人称和数的区别?/p>
2)
过去完成进行时的用法
过去完成进行时表示动作在过去某一时间之前开始并延续?/p>
过去这个时间,这一动作可能还在进行,也可能已经停止。如?/p>
He told me that he had been waiting for me for two hours.
他对我说他等了我?/p>
小时?/p>
(
动作不再延续
)
The baby had been crying for fifteen minutes when her mother came in.
妈妈?/p>
来时,婴儿一直哭了十五分钟?/p>
(
动作可能还在进行
)
It seemed to her that the boys had been shouting for a long time.
她似乎觉得这
些男孩一直叫喊了很久?/p>
(
动作可能还在进行
)
The teacher had been teaching for forty years by the time he retired
,这位教?/p>
退休前一直教了四十年的书?/p>
(
动作不再进行
)
[
英语语法手册
]
何谓
"
时态的一?/p>
"
定义