[语法剖析]

语法点一 主语从句 　　1.主语从句的引导词

连词种类 连词 从属连词 that, whether 连接代词 what, who, whom, which, whose, whatever, whoever, whichever, whomever 连接副词 when, where, how, why 　　Whether he'll visit our company hasn't been decided yet.

　　他是否参观我们的公司还没有决定。

　　That they are true friends is obvious.

　　很显然他们是真正的朋友。

　　What he did really satisfied us all.

　　他做的事确实让我们大家满意。

　　2．常以it作形式主语的句型

　　(1)It＋be＋形容词(obvious, true, natural, surprising, possible, likely, certain, clear, probable, etc)＋that从句

　　It is certain that she will do well in this exam.

　　可以肯定她这次考试一定会考得不错的。

　　It is quite clear that the ear of the elephant is like a huge fan.

　　很显然，大象的耳朵像一把大扇子。

　　(2)It ＋be＋名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc)＋that从句

　　It is no wonder that she was so upset.

　　难怪她如此心烦意乱。

　　It's a pity that I can't attend your birthday party.

　　真可惜我不能参加你的生日宴会。

(3)It ＋be＋过去分词(said, reported, thought, expected, decided, announced, arranged, etc