1.It+seem/appear+that ...
It appeared that he was talking to himself.好像他在自言自語。
It seemed that he didn’t recognize me.他似乎沒認出我來。
It seemed/appeared that he had made mistakes in his work.好像他在工作中犯了錯誤。
2.It+系動詞+as if/as though ...
It looks as if we are going to have snow.看樣子天要下雪了。
She seemed as though she couldn’t understand why Laura was there.
看來她好像不能理解為什么勞拉呆在那兒。
It sounds to me as though there’s a tap running somewhere.
我好像聽到某處水龍頭流水的聲音。