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* 跟不定式担当表语的不及物动词seem似乎, appear显露出,happen碰巧。
2. 不定式不同形式的使用
我们大家都清楚，任何形式的非谓语动词均相当于谓语动词的某种形式，要正确使用非谓语动词就必须从谓语动词的时态语态入手，才能进行系统正确地分析与了解。
1) 现在我们以pretend为例对以上及物动词后的不定式形式进行分析
●She pretends that she will pay the bill. (宾语从句动词使用一般将来时)
= She pretends to pay the bill. 她假装要买单。
不定式一般式"to pay” 担当宾语，表示将来,含义作用与pretend后面的宾语从句that she will pay the bill相同。
● She pretends that she is sleeping in the room. (宾语从句动词使用现在进行时)
= She pretends to be sleeping in the room. 她假装正在睡觉。
不定式进行式 “to be sleeping” 表示动作正在进行,相当于宾语从句that she is sleeping。
* 不可以说: She pretends ╳ sleeping in the room. (及物动词pretends不可以跟动名词sleeping担当宾语)
●She pretends that she has finished her work. (宾语从句动词使用现在完成时)
= She pretends to have finished her work. 她假装已经完成了自己的工作。
不定式完成式"to have finished her work” 表示过去完成的动作，相当于that she has finished her work。
●She pretends that she finished her work 3 days ago. (宾语从句动词使用一般过去时)
= She pretends to have finished her work 3 days ago。
她假装三天以前就已经将工作干完了。
不定式完成式"to have finished her work 3 days ago” 表示过去完成的动作，相当于that she finished her work 3 days ago。
●She pretends that she has been working for hours. (宾语从句动词使用现在完成进行时)
= She pretends to have been working for hours.
她假装已经连续工作好几个小时了。
不定式完成进行式"to have been working for hours”表示过去开始并一直进行的动作, 相当于that she has been working for hours。
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