语法飞跃 Subject Clause
——主语从句
Underline the subject
1. Jane is good at playing the piano.（名词） 2. She went out in a hurry.（代词） 3. To see is to believe.（不定式） 4. Smoking is bad for health（. 动名词） 5. What he has said is true（. 从句）
结论：主语从句的语序要用序 主语从句连接词的使用 主谓一致 形式主语结构
Task1 连接词的使用
That he will pass the exam is certain.
Whether he will pass the exam is uncertain.
结论：
_t_h__a_t__不做成分，无意义，不可省略。 whether 不做成分，译为“__是__否___”，不可省略,
不能用 if 代替。
if 和 whether If ×
Whether the solid shape would last or not was not clear.
if It was not clear whether the solid shape would last.
结论：1）主语是句子说明的人或事物，一般放在____句__首______. 2）在句子中充当____主__语______的从句就是主语从句。.
Underline the subject clause
1. That he will pass the exam is certain. 2. Whether he will pass the exam is uncertain. 3. Who will go makes no difference. 4. What we need is more time. 5. Which book I shall choose hasn’t been decided.
结论：
who在主语从句中充当__主__语______；what在主语从句中充当__宾__语______； which在主语从句中充当__定__语______；whoever在主语从句中充当__主__语_____。
Task1 连接词的使用
When we will leave hasn’t been decided. Where the meeting will be held is not known. Why he cries is not clear. How she keeps healthy is a secret.
Task3 形式主语
That we can’t go to see the movie is a pity.
It is a pity that we can’t go to see the movie.
练习：
形式主语
That his invention will make people's life convenient is certain.
That students should work hard is natural.
结论： 引导主语从句在句首只能用whether, if只能放在句中。
Task1 连接词的使用
Who will go makes no difference. What we need is more time. Which book I shall choose hasn’t been decided. Whoever breaks the law will be punished.
结论：
When 在主语从句中充当___状___语____ ；where在主语从句中充当___状__语_____； why在主语从句中充当___状__语_____；how在主语从句中充当__状___语____。
归纳
缺什么补什么
功能
连接词
不作成分 that，whether 作主、宾、表、 what, who, whom, wh+ever
Task2 主谓一致
That he will pass the exam is certain. Which book I shall choose hasn’t been decided. How she keeps healthy is a secret.
结论： 当一个句子的主语是从句时，该句子的谓语用__单__数____。
注意
What I need ___is___ money.
What I need __a_r_e__ books.
结论：
Who you will go with ___i_s__ Lucy. Who you will go with __a_r_e__ the twins.
what和who 引导的从句做主语时，谓语的单复数取决它的__表___语___.
作定语
which, whose
作状语
when, where, why, how
Exercises
1. ___________ she is late is not clear. 2.____________we will hold the meeting is still a question. 3.___________they make in the factory are TV sets. 4.__________the accident happened will be looked into by the police. 5.___________I will spend the holiday is none of your business. 6. It is a pity___________ you can't attend my birthday party. 7. It is necessary __________ the problem should be solved at once.