不定式的进行式的概念:
表示的动作或状态在谓语动词表示的动作或状态发生时正在进行。如:They pretended to be working very hard. 他们假装正在努力工作。
不定式进行式用法归纳:
不定式进行式的基本形式为to be doing,其主要用法如下:
1、表示同时进行,即表示谓语动作同时发生且正在进行的动作。
如:He pretended to be studying. 他假装在学习。
I happened to be standing next to him when he collapsed. 他倒下的时候我恰巧站在他旁边。
2、表示将来,正如可用进行时态表示将来意义一样,不定式的进行式有时也可表示将来。
如:I hope to be staying with you. 我希望和你住在一起。
The old man seems to be dying. 这老人似乎要死了。
I'm quite pleased to be leaving this country. 就要离开这个国家我很高兴。
3、表示一般情况,即看不出动作的先后关系,而是表示一种情况或现象。
如:I noticed that he seemed to be smoking a lot. 我发现他似乎烟瘾很大。
Just to be doing something was a help. 做点事是有益处的。
You are too young to be meeting young men. 你太小,不能交男朋友。
不定式的进行式用法拓展:
不定式进行式表示正在进行的与谓语动词同时发生的动作,它在句子中可以用作以下成分:
一、用作主语:
如:It's nice to be sitting here with you. 和你一起坐在这儿真好。
Just to be doing something was a help. 做点事是有益处的。
二、用作表语:
如:He seems to be saying something. 他似乎在说什么。
Things seem to be going on smoothly. 似乎一切都很顺利。
He seems to be following us. 他似乎在跟着我们。
三、用作宾语:
如:You won't want to be washing at this time of night. 夜里这时候你不要洗澡。
I hope to be staying with you. 我希望和你住在一起。
四、用作定语:
如:You've no need to be fearing. 你没有必要害怕。
Well, it's time to be making for home. 好,是回家的时候了。
五、用作状语:
如:You are lucky to be going by air. 你挺幸运的,能乘飞机走。
You are too young to be meeting young men. 你太小,不能交男朋友。
六、用作宾补:
如:Let's be moving, we're wasting time. 我们走吧,我们在浪费时间。
They thought her to be working in the library. 他们以为她在图书馆学习。
七、用作主补:
如:He believed her to be telling the truth. 他相信她讲的是真话。
He is believed to be going to the U.S.A. 据信他正在前往美国。
He is thought to be hiding in the woods. 人们认为他躲在林子里。
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