Subject Clause Definition When acting as a subject

Subject Clause Definition： When acting as a subject of a sentence, the clause can be called the Subject Clause

What will he do after graduation is a question. subject Main clause What he will do after graduation is a question. Rule 1： 主语从句应使用陈述句语序

He will not come to the meeting is true. subject Main clause That he will not come to the meeting is true. Rule 2： that 引导主语从句无实际意义，但 不能省略。

_______ we will go camping tomorrow 疑问 depends on the weather. A. That C. If B. Whether D. Why Rule 3： 放在主语从句句首，表示“是否”，只能 用whether, 不能用if

_____ is known to all that the earth turns around the sun. A. That C. It B. This D. What formal subject：形式主语 Rule 4：用it作形式主语，而把真正的主语 置于句末，it不可用其它形式代替。

会议是否被延迟还尚未决定。 Subject Whether the meeting will be put off ________________ has not been decided yet. 只能用whether Word order 陈述句语序

线上购物使我们的生活更加容易， Subject 这是一个事实。 That shopping online makes our ______________ life easier is a fact. _____ It is a fact that shopping online makes our life easier.