9) _______ we need are good doctors.

2. 小结:

(1)引导主语从句连词有______________________________________________________等

(2)连词位于句首不能______ （省略）

(3)主语从句大多数情况下视为______ (单数/复数),但也有例外,如例句9（单数）

1)That, 2) Whether 3) Who 4)Whom 5)What 6)Whatever7) Whose 8)What 9)What

Exploring Case质疑探究--------质疑解惑，合作探究

探究点一 主语从句类型

1. 由连词that引导的主语从句:引导词that无含义,在句中不做成分,不可以省。

________ you will win the medal seems unlikely. 你想获得奖牌看起来是不可能的。

_________ you are so indifferent bothers me. 你如此冷淡使我很烦恼。

________ she survived the accident is a miracle. 她在事故中幸免于难简直是奇迹。

That/That/That

2. 用连词 whether 引导的主语从句:whether有含义(是否),在句中不做成分,不可以省。

_________ she is coming or not doesn't matter too much. 她来不来都无关紧要。

3. 用连接代词引导的主语从句(在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分).

_______ you need is more practice. 　你所需要的是更多的训练。

_______ I want to know is this.　　 　　我想知道的就是这事。

_______ we do is to serve the people　　我们无论做什么都是为人民服务。

What/ What/ Whatever

4. 用连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。)

_______ we should stay it is a problem. 我们能呆在哪还是个问题

_______ they will come hasn't been made pubic. 他们什么时候来还不知道。

Where/when

探究点二 为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末。

eg. It is said that he has gone to shanghai.=He is said to have gone to shanghai

It happened that the two cheats were there. =The two cheats happened to be there