归纳全面,讲解透彻;精美展示名词性从句各知识点,有效突破高考重点、难点。
主语从句与其它句型的辨析
(1) 强调句: It + is / was + 被强调部分 + that + 句子其它部分
(2) It is / has been + 一段时间 + since ....句型
(3) It + be + 一段时间 + before ....句型
(4) It is / was the first time that ...句型
(5) It is / was + 具体时间 + when 从句