before和ago都表示过去，他们有何区别

显示全部楼层 · 2006-1-24 16:34:10

都是副词但是before 是连接词，连接从句的；介词，而AGO是代表时间段的。例如：
I BOUGHT THE PEN BEFORE I GOT THE MONEY FROM MAMA。
I GOT THE PEN LONG TIME AGO

千问 · 2006-1-24 16:34:10

before 表示从过去看一段时间以前，而ago表示从现在看一段时间以前．eg.He said he had seen the film three years before.He went to Beijing three years ago.

千问 · 2006-1-24 16:34:10

举几个例子吧： I was a student 3 years ago. I have been a student before 3 years.

千问 · 2006-1-24 16:34:10

噢，知道了！

千问 · 2006-1-24 16:34:10

一个表示以后,一个表示以前.