Where I spend my summer is no business of yours.

　　我在哪里过暑假不关你的事。

　　[名师点津]　名词性从句引导词的确定步骤：

　　(1)分析句式结构，明确名词性从句在句中的功能；

　　(2)明确名词性从句所表达的意义；

　　(3)明确名词性从句中所需要的成分及意义；

　　(4)确定从句的引导词。

　　[即时演练2]　用适当的连接代词或连接副词填空

　　①How it was done was a mystery.

　　②Why John was late for the class has been unexplained.

　　③Which part of the country he will travel to needs discussing.

　　④Where/When the English evening will be held has not yet been decided.

　　⑤What surprises me most is that he is too proud.

　　⑥Whoever is interested in the activity can sign your names.

　　三、主语从句中用it作形式主语的结构

　　1．It＋be＋形容词(obvious, true, natural, strange, etc.)＋主语从句

　　It is important that he should know about this.

　　他应该知道此事是重要的。

　　[名师点津]　在"It＋be＋形容词＋主语从句"结构中，若形容词为important/necessary/strange等，主语从句中的谓语用"(should) do"。

　　2．It＋be＋名词词组(no wonder, an honour, a pity, a/no surprise, etc.)＋主语从句

　　It's a pity that he didn't come.

　　很遗憾他没来。

　　3．It＋be＋过去分词(said, reported, thought, expected, proved, etc.)＋主语从句

　　It is suggested that the meeting be put off.

　　有人建议会议延期召开。

　　[名师点津]　在"It＋be＋过去分词＋主语从句"结构中，过去分词若为suggested/ordered/required/advised等，主语从句中的谓语用"(should) do"。

　　4．It＋不及物动词(happen, seem, appear, remain, etc.)＋主语从句

　　It seems that it is going to rain.

看起来好像要下雨。