名词性从句中,从句要用陈述语序。如:
主语从句中:What is worth doing is worth doing well.
这是正确的,其中 what is worth doing 不是疑问语序吗?
在宾语从句中却要把 who is your real friend 要改为 you will know who your real friend is。
两个不是都是疑问语序吗?为什么第一个不用改第二个却要改。
What 无论引导“特殊疑问句”,还是“名词性从句”,它都可以作句子的主语,也可以作句子的宾语。
▲ 当它在句中作主语时,语序跟陈述句是一样的。例如:
1. What has happend to you?
把What has happend to you 变成名词性从句时,语序不变:
2. I don’t know what has happened to you.
▲ 当它在句中作宾语或表语时,语序需要部分倒装(需要在主语之前加操作词,如:do, does, did, can, will, have, has, is, are, was, were 等)。例如:
1. What are they talking about over there?
把What are they talking about over there 变成名词性从句时,则改为正常语序:
2. I don’t know what they are talking about over there.
此规则,同样适应于其他疑问代词,如:who, which, whatever, whoever, whichever等。
关于你的这两个句子:
1. What is worth doing is worth doing well.
在What is worth doing 中,what 作主语,所以,在名词性从句中语序也不会变的。
2. You will know who your real friend is.
在Who is your real friend? 中,who 作表语,所以,在名词性从句中要变化的,要用正常语序。
如果觉得我的回答对您有用,请随意打赏。你的支持将鼓励我继续创作!
1. What is worth doing is worth doing well.
在What is worth doing 中,what 作主语,所以,在名词性从句中语序也不会变的。
2. You will know who your real friend is.
在Who is your real friend? 中,可以把who 看作表语或者主语。
如果把who 看作表语,在名词性从句中要变化的,即:You will know who your real friend is.
如果把who 看作主语,在名词性从句中语序也不会变的。即:You will know who is your real friend .
把who 看作表语的例句:Who ever is that strange girl with Roger ? 和罗杰在一起的那位陌生姑娘到底是谁呢?(摘自《牛津英语用法指南》第三版624节)
把who 看作主语的例句:Who is that young lady ? 那个年轻女士是谁?(主格代词做主语)(摘自北京语言大学出版社2012年7月第1版《新编英语句型句法全解》第43页 )