一、名词性从句(Ⅱ)
(一)连接代词、连接副词引导的名词性从句
1.由what, which, who/whom, whose等连接代词和when, where, why, how等连接副词引导的名词性从句在句子中可以充当主语、宾语、表语或同位语。
(1)连接代词引导的名词性从句
What you need is more practice.
你需要的是更多的练习。
My question is who will take over president of the Foundation.
我的问题是谁将接任该基金会主席职位。
I don't know whose watch it is.
我不知这是谁的手表。
Do you have any idea what it means to be poor?
你知道贫穷意味着什么吗?
(2)连接副词引导的名词性从句
Where we will go hasn't been decided.
我们要去哪儿还没有定下来。
She always thinks of how she can work well.
她总是在想怎样能把工作做好。
I had neither a raincoat nor an umbrella.That's why I got wet through.
我既没雨衣也没雨伞,那就是我淋湿的原因。
I have no idea when she will be back.
我不知道她何时回来。
[名师点津] (1)名词性从句作主语时,谓语动词常用单数,但是如果what引导的主语从句代表复数概念,则谓语动词要用复数。如:
What we need are useful books.
我们需要的是有用的书。
(2)连接代词which通常不用来引导同位语从句。
(3)由"wh"词引导的名词性从句必须用陈述语序。
[即时演练1] 完成句子
①他为什么要这样做还不知道。
Why he did this is not known.
②我们不能得到的似乎比我们已经拥有的更好。
What_we_can't_get seems better than what we have.