主语是什么引导词从句?
引导主语从句连词有that,whether,who,what,whatever等。
1、从属连词that, whether
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引导的主语从句可放在句首,也可放在句尾。由whether (or not)引导的主语从句放在句首、句尾都可以。如:
That he became a doctor may have been due to his father’s influence.
他成为医生可能是由于他父亲的影响。
Whether it will please them is not easy to say.
这是否会让他们高兴还很难说。
2、连接代词who, whoever, whom, whomever, which, whichever, what, whatever, whose连接代词引导主语从句,在从句中作主语、宾语、表语、定语。
如:
What seems easy to some people seems difficult to others.(what作从句主语)
对一些人来说容易的东西对另一些人来说似乎很难。
Which side will win is not clear.(which作side的定语)
哪一方会赢还不清楚。
Whoever told you that was lying.(whoever作从句主语)
不管这话是谁对你说的,都是撒谎。
Whatever we have achieved is attributed to the guidance of our teachers.(whatever作achieved的宾语)
我们所取得的成就都归功于老师的指导。
3、连接副词where, when, why, how连接副词可以引导主语从句,在句中作时间、地点、原因以及方式状语。如:
Why he did it remains a mystery.(why在从句中作原因状语)
他为什么这么做仍然是个谜。
When he will come is not known.(when在从句中作时间状语)
他会什么时候来还不知道。
Where the English evening will be held has not yet been announced.(where在从句中作地点状语)
英语晚会将在哪里举行还没有宣布。