题目内容：

be able to可接被动形式吗?
复习书上写be able to一般不接被动形式,但是如果把“They are able to overcome the difficulties.”改写成“The difficulties are able to be overcome by themselves”算错吗?
是by them 打错了

优质解答

不对,这完全是按中国式思维“创造”出来的“英语”.
be able to 表一种能力,他们有能力自己战胜困难.
反过来,变成：困难有能力被他们战胜?
明白了吧?