That-从句作主语通常用it作先行词.而将that-从句置于句末.例如: It is quite clear that the whole project is doomed to failure.很清楚.整个计划注定要失败. It's a pity that you should have to leave. 你非走不可真是件憾事. 用it作形式主语的that-从句有以下四种不同的搭配关系: a. It + be + adj. + that从句 It is necessary that- 有必要-- It is important that- 重要的是-- It is obvious that- 很明显-- b. It + be + 过去分词 + that从句 It is believed that- 人们相信-- It is known to all that- 从所周知-- It has been decided that- 已决定-- c. It + be + n. + that从句 It is common knowledge that- --是常识 It is a surprise that- 令人惊奇的是-- It is a fact that- 事实是-- d. It + be + vi. + that从句 It appears that- 似乎-- It happens that- 碰巧-- It occurred to me that- 我突然想起-- 【查看更多】
