高考网-北京新东方学校

　　(1) It is /was +被强调部分+that(who)...

　　例：It was I who wrote to my uncle yesterday.

　　是我昨天给我叔叔写信的。

　　(2) Is/was it + 被强调部分 + that (who) ...

　　例：Was it your brother that you met in the street?

　　在街上你遇见的是你兄弟吗?

　　(3) Where/who/what/how等特殊疑问词 + is/was it that ...

　　例：How is it that you will go to visit her tomorrow?

　　明天你究竟怎样去看望她?

　　(4) do/does/did +谓语动词 (强调谓语)

　　例：They do know the place well.

　　他们的确很熟悉那个地方。