在书上看到有人说 be able to 后面不能接被动式,但在实际应用中又经常看到 be able to 后面接被动式的用法。比如我在有道上就查到了这样一句:
网站刘老师和陈老师曾经讨论过这个问题。问题链接如下:
https://www.cpsenglish.com/question/5815
除了博士老师提供的依据外,补充一下Merriam-Webster's Dictionary of English Usage的解释,供您参考:
In constructions where able is followed by to and the infinitive,the infinitive is nearly always in the active voice, whether the subject is human or nonhuman.Human subjects are more common.
The passive infinitive is much less common. Some commentators (Longman 1984,Perrin&Ebbitt 1972) opine that the construction sounds awkward; perhaps it often does,and awkwardness may account for its being fairly uncommon.Here are three examples to show that it is used on occasion:
… Mr.Doddington. from whose disapproval the story of Gavin and the Concannons' party had not been able to be kept
… so social and religious life would be able to be carried out on a normal basis
… a simple experiment able to be performed by anyone