A 形式
to be+现在分词:
He seems to be following us.
他好像在跟着我们。
B 用法
不定式的进行式可用于:
1 助动词之后:
Theyll be wondering where you are.
他们会纳闷你在哪里。
He may/might be watching TV.
He cant/couldnt be watching TV.
他可能在看电视。
他不会在看电视。
There are no programmes today because of the strike.
由于罢工,今天没有节目。(否定的推论)
He must be coming by bus.
他一定是乘公共汽车来。(推论)
You shouldnt be reading a novel.You should be reading a textbook.
现在你不该看小说,你应该看课本。
2 appear,happen,pretend,seem之后:
He appears/seems to be living in the area.相当于:
It appears/seems that he is living in the area.
(看来)他似乎就住在这一带。
He appeared/seemed to be living in the area.相当于:
It appeared/seemed that he was living in the area.
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2016-02-29
2016-02-29
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2016-02-29