1 return 作及物动词用时,表示“归还,还给”,后面不可再用back,因为return 本身就相当于give back,结构为:
return sb. +sth.
return sth. to sb.
He has returned the books to the library. 他已经把书还给图书馆了。
You haven't returned her the money yet. 你还没有把钱还给她呢 。
You haven't returned the money to her yet.
2 return 作不及物动词用时,表示“返回,回到”,相当于go back或come back,也不可同back连用。
He returned home last night. 他昨天夜里回家来的。(=come back home)
She will return to the factory in a week. 她将在1周后返回工厂。(=go back to the factory)
比较
return是非延续性动词,与go, come, leave, start, begin等动词一样,不可与表示一段时间的状语连用。
He has returned home for a month . (误)
He returned home a month ago . (正)
It is a month since he returned home. (正)他回家已经一个月了。