三、名词性 wh- 从句
1)由 wh- 词引导的名词从句叫做名词性 wh- 从句。Wh- 词包括 who, whom,. whose, whoever, what, whatever, which, whichever 等连接代词和 where, when, how, why 等连接副词。Wh- 从句的语法功能除了和 that- 从句一样外,还可充当介词宾语、宾语补语和间接宾语等,例如:主语:How the book will sell depends on its author. 书销售如何取决于作者本人。
直接宾语:In one's own home one can do what one likes. 在自己家里可以随心所欲。
间接宾语:The club will give whoever wins a prize. 俱乐部将给得胜者设奖。
表语: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。
宾语补足语:She will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。
同位语:I have no idea when he will return. 我不知道他什么时候回来。
形容词宾语:I'm not sure why she refused their invitation. 我尚不能肯定她为什么拒绝他们的邀请。
介词宾语:That depends on where we shall go. 那取决于我们去哪儿。
2)Wh- 从句作主语也常用先行词 it 做形式主语,而将 wh- 从句置于句末,例如:
It is not yet decided who will do that job. 还没决定谁做这项工作。
It remains unknown when they are going to get married. 他们何时结婚依然不明。