very和too的用法有什么不同吗?

一、very :
ad.
1.非常,很
He walked very fast.
他走得非常快.
It's very cold today.
今天很冷.
2.(用于形容词*或first,last,opposite,own等之前)真正地,极其
This is the very best novel I've read lately.
这是我最近读过的最好的小说.
3.(用于否定句)(不)太...,(不)怎样...;决(非)
That game was not very exciting.
那场比赛并不怎么精彩刺激.
4.正是;恰好是
She died in the very room.
她就是在这个房间里逝世的.
5.仅仅;甚至
She shuddered at the very thought of a snake.
一想到蛇她就惊恐万状.
6.完全的,十足的
What he said turned out to be the very reverse of the truth.
结果发现他所说的与事实完全相反.
二、too
too [tu:] adv.1.也；也是；另外,此外,而且；加之；还：
He is young,clever and rich too.
他年轻、聪明,还富有.
2.太；过于：
The hat is too big.
帽子太大.
That's too bad.
那太糟糕了.
3.[口语]很；非常；极为：
It was just too delicious!
太好吃了!
4.[主美国英语][用于肯定句中,无词汇意义,强调对一句否定句的否认]：
I will,too,go!
我要去的!