1、either用于否定句，放在句末，之前加逗号。2、too语气较轻，多用于口语，在肯定句中使用，通常位于句末。3、either表示二者之一。too表示“太”，有超出极限无法忍受之意。

either造句

Eitheryou or I am going there tomorrow。

Eitheryou or she is good at drawing。

When the girl is happy， sheeithersings or dances。

Doeitheryou or he have lunch at school?

I want to visiteitherParis or London。

too造句

1、It's neithertoosleepy nortoointimidating.

2、You sit downtoo.

3、Germany (toosmelly).

4、He istoodogmatic!

5、You deserve onetoo.