2. Thinking and discussing

　　Let students read aloud the sentences they picked out, think over and discuss with a partner how each of these noun clauses is being used in the situations. If students have some difficulty, give them a hand.

　　3. Summing up: noun clauses as the subject.

　　主语从句

　　作主语用的名词性从句, 因其在复合句中作主语, 又称主语从句。

　　（1）连接词:

　　1) 从属连词 that, whether等。

　　that 引导主语从句只起引导作用, 本身无实际意义, 在主语从句中不充当任何成分, 但不能省略。

　　That she left him cut him to the heart.

　　她的离开使他很伤心。

　　由whether引导的主语从句放在句首、句末都可。

　　Whether it will please them is not easy to say. /It is not easy to say whether it will please them.

　　很难说这会不会使他们高兴。

　　2) 连接代词 who, what, which, whoever, whatever, whichever等。

　　What seems easy to some people seems difficult to others.

　　对某些人看来很容易的事, 对另外一些人可能很困难。

　　3) 连接副词 when, where, how, why等。

　　Why he did it remains a mystery.

　　他为什么做那件事依然是个谜。

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