either 表示“也”时一般只用于否定句,且只置于句末.例如：
I don't know him．Tom doesn't know him,either．我不认识他,汤姆也不认识他.
If you don't go there,he won't go there,either．如果你不去那儿,他也不去那儿.
as well 常用于口语,用法和 too一样,通常位于句末,它前面通常不用逗号.例如：
She is a teacher and a singer as well．她是教师,也是歌唱家.
I know Japanese as well．我也懂日语.
as well和either都有“也,而且”的意思,主要在这个意思上来区别.
在这个意思上,either用于否定句或否定词组后面加强语气,例如：If you don't leave,I won't either.而as well则与前者相反,用于肯定句句尾,与too的用法相同,例如：He is my teacher,but he is my father as well.他是我的老师,而且他也是我的父亲. either 表示“也”时一般只用于否定句,且只置于句末.例如：
I don't know him．Tom doesn't know him,either．我不认识他,汤姆也不认识他.
If you don't go there,he won't go there,either．如果你不去那儿,他也不去那儿.
as well 常用于口语,用法和 too一样,通常位于句末,它前面通常不用逗号.例如：
She is a teacher and a singer as well．她是教师,也是歌唱家.
I know Japanese as well．我也懂日语.
as well和either都有“也,而且”的意思,主要在这个意思上来区别.
在这个意思上,either用于否定句或否定词组后面加强语气,例如：If you don't leave,I won't either.而as well则与前者相反,用于肯定句句尾,与too的用法相同,例如：He is my teacher,but he is my father as well.他是我的老师,而且他也是我的父亲.