4. 一些特殊动词
如borrow, finish, begin, buy, start, return, marry, open, join等构成的现在 完成时的被动语态不能与表示一段时间 的状语连用。若要表达相应的意思, 则需改换动词或时态。
• My brother has had(不能用has bought) this bike for almost four years. • How long has this book been bought? How long ago was this book bought?
built
4. Our computer just has been joined to the internet.
has just
Discovering useful words and expressions
complete change in ways of thinking, working, etc revolution
connected computer system network to make things easier simplity to find the answer using numbers caculate can be moved easily from place to place
mobile
3. 动作或状态始于过去,持 续到现在,并可能持续下去。
He has been told about it for many times.
有人告诉他这事很多次了。 (可能还会有人告诉他)
4. 用在时间和条件状语从句中, 表示将来某时已完成的动作。
We’ll start as soon as the work has been finished.