学习指导语：1 掌握两种句子的定义 2 理解相关的注意事项
3 熟练运用所学知识，会做相关的习题
一主语从句：观察以下几个句子，找出规律：
(1) That he will come is certain.
(2) Whether she is coming or not doesn’t matter too much.
(3) What surprised me most was to see some of the village people seated on the benches at the end of the room.
(4) Which team will win the match is a matter of public concern.
(5) Where she has gone is not known yet.
【归纳】
1．定义：主语从句就是在复合句中作 的句子。
