請問what for 和 for what用法

Question

請問what for 和 for what的不同在哪?
用法為何囉謝謝

Answer 1

請問what for 和 for what用法 -----
其實"what for"與"for what"是同義的，表示"為啥/為那樁"的意思．其文法上的原理如下：
先看大家比較爾熟能詳的類似句子來推演：
把肯定句"He gave it to someone."(他把它給某人了) 改成疑問詞疑問句：
Who did he give it to? = To whom did he give it? (他把它給誰了?)
可以看到，上述句子的介詞"to"，位置可以如上兩種，意思不會改變．
同理來看 "for what" 的情況：
把肯定句"He sold it for money." (他為了錢就把它賣了) 改成疑問詞疑問句：
For what did he sell it? = What did he sell it for? (他是為了什麼把它賣了?)
兩者意思完全相同．
但在口語裡，因為有前後問答的關係，所以類似上面的完整問句就會用簡短的"片語式"問句替代，此時前面那句問句就會簡略為"For what?"，而後面那句就簡略為"What for?"，一樣地，兩者同意思．
再舉一對話例來看就明顯了：
A: "The boss fired John."
B: "For what? (= What for?)" (完整問句 "For what did the boss fire John." = "Whtat did the boss fire John for.")
底下是Longman英英字典解釋"What for"，即註解是"spoken"(口語語詞)
9
spoken what (...) for?
a) used to ask why someone does something (用於詢問某人為何作某事)
'She's decided to work part-time.' 'What for?'

Answer 2

我覺得兩個是都一樣的意思
不過比起順口
我喜歡用for what
因為跟中文文法結構很像!

Answer 3

兩者一樣吧!
Why do you need it? For what? / What for?