There is a lot of work to be done. (The work has to be done. )
请注意下面两个句子的含义的不同点:
There is nothing to do. (无事可做,感到十分乏味。)
There is nothing to be done. (某东西坏了,无法使之恢复正常。)
三、不定式符号to 的保留问题
有时为了避免重复,可以用to 来代替前面的不定式,这种情况出现在下列动词之后:expect, hope, wish, mean, prefer, care, forget, want, try;或出现在be glad / happy, would like / love 等的后面。
如果在省略的不定式结构中含有:be, have, have been,这些词要保留。如:
I haven’t been to Hong Kong, but I wish to.
— Are you on holiday ?
— No, but I’d like to be.
— I didn’t tell him the news. 我没有告诉他那个消息。
— Oh, you ought to have. 噢,你本应该告诉他的。
四、动名词作主语
动名词或不定式都可以在句中作主语,但在下列句型中常用动名词作主语。
It is / was no use / good + doing sth.
It is / was not any use / good + doing sth.
It is / was of little use / good + doing sth.
It is / was useless
如:It is no use crying over spilt milk. 覆水难收。
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