how to do it和what to do it的区别

Answer 1

what to do和how to do it 的区别
这两个短语都是特殊疑问词加不定式构成的，相当于宾语从句。
what to do是完整的（what是do的宾语），表示做什么，故不定式后不可再加宾语，
如
I don't know what to do.
(= I don't know what I can do .)
how to do是不完整的（how提问方式），必须加上do的宾语，表示如何做、、、
如
I don't know how to dothis thing.
(= I don't know how I can do this thing.)
一般情况do后必须加上宾语。

经典考题：
1. I don't know next time .
A. how to do B. how to say C. where to go to D. what to wear
2. At last I lost my way,I didn't know 。
A how to do B what to do it C which to do it D where to go
3.Could you tell me what to do and how to do it?同义句
Could you tell me ____ ____ ____ do and ____ ____ ____ do it?
4.----I often chat with my friends on the Internet.
----You are so smart ! Will you please tell me ?
A. how to do B. how to do it C. how to use D. when can I use it
5. This math problem is too difficult . Can you show me ,George ?
A. what to work out B. to work it out
C. how to work it out D. how to work out it
6. We want to know to help them .
A. what can we do B. what we can do
C. how can we do D. how we can do

Keys:
1.D 2.D 3.what I should how I can 4. B 5. C 6. B

Answer 2

1、how to do
没有how to do这样的表达。
do是及物动词，后面应该加上宾语表示“做某事”，才算是完整的表达。而how表示的是“方式”，不能用作宾语，因此后面所接的to do必须跟个宾语。所以how to do是个不正确的表达。
2、how to do it

这里do 后面跟了宾语it，便是一个完整而又正确的表达。
意思是“怎么做（它），如何做（它）”，询问的是方式，例如完成某事的方法。
例句：Could you please tell me how to do it？（你能告诉我怎么做它吗？）
how to do it询问的是方法，是完成某事应该怎么做；

Answer 3

how 指方式
what 指内容
what to do it 这个语法是错的.what 已经做宾语了,要去掉it
how to do it 指怎样去做
what to do 指要做什么