英语中句首什么时候加to do什么时候加 doing有什么不同?

问题描述:

英语中句首什么时候加to do什么时候加 doing
有什么不同?

做目的状语时用to do,做主语时就要用doing了.如
To gain a more interesting experience,I decided to go there alone
Making friends with you is my honor

to do sth.
讲述要去做的事,或要达到的目的
doing sth.
讲述一种状态,或作为主语使用

like todo some thing
like doing sth

to do有去做和要做的意思
i need to do sth
doing是正在做
i'm doing sth

一个强调动作,一个强调状态~
EP
To be here is one of my most exciting things.
Being here is one of my most exciting things.
前者强调“到这儿来”,而后者强调“在这里”.

no 区别,老师说to do, doing都表示目的