When they arrived, they found the ship had been sunk.
请问这个句子对吗?其中的 been 是不是多余的?如果有 been,这个 sunk 就应该是形容词表示“沉没”,这也对吗?
你的句子去掉 been 也可以,但意思稍有不同:
When they arrived, they found the ship had been sunk.——强调使船沉没的外力,即暗示它是被弄沉(比如被击沉等)
When they arrived, they found the ship had sunk.——不强调使船沉没的外力。