howdoyou……与howto……的区别?我想问下这两种结构howdoyou……与howto……有什么区别啊?什么情况下能用howto……啊?howtokeepfit和howdoyoukeepfit有什么区别?howtospeakit和howdoyouspeak

Question

how do you…… 与how to……的区别?
我想问下这两种结构 how do you…… 与how to……有什么区别啊?
什么情况下能用how to…… 啊?
how to keep fit 和 how do you keep fit有什么区别?
how to speak it 和how do you speak it有什么区别?

Answer 1

1 how do you 是句子.how to - - - 是短语结构.
2 how to do sth在句子裏面可以作谓语以外的成分：
How to do the work is a problem (作主语)
The problem is how to do the work.(作表语)
I don't know how to do the work.(作宾语)
3 how to keep fit 是短语结构.how do you keep fit 是句子.
how to speak it是动词短语结构.how do you speak it 是句子.