been的用法和意思：been是be的過去分詞，作為動詞，中文含義為“是”。been用在完成時和被動句中，其中現在完成時的構成為has/have+been/done，過去完成時的構成為had+been/done,當被動句的主語是物時，即用被動語態。
been的中文含義及用法介紹
been：英式讀音為[bi?n]，美式讀音為[b?n]。
been是be的過去分詞，中文意思為“是”，用於完成時，表示“已經過去”。例句有：
1、Scientists think that there has been life on Earth for millions of years.
科學家認為生命存在於地球已經有幾百萬年了。
2、They have been playing football for 3 hours.
他們已經踢了3小時的足球了。
3、I have been away from Paris for two weeks.
我離開巴黎已經兩星期了。
4、There have been many changes in recent years.
近幾年發生了許多變化。
5、We had to work within the parameters that had already been established.
我們必須在已設定的範圍內工作。
6、The resources at our disposal could have been better utilized.
我們所掌握的資源本來可以利用得更好，獲得更高的效益。
7、A new satellite has been put into orbit around the earth.
壹顆新的人造衛星被送上了環繞地球的軌道。
8、The first part of the plan has been safely accomplished.
計劃的第壹部分已順利完成。
9、The new drug has not yet been licensed in the US.
這種新藥尚未在美國獲得許可。
10、The theory has been superseded by more recent research.
這壹理論已為新近的研究所取代。