be
be been的用法和意思？
been的用法和意思？
“be”这个词既可以作为助动词、又可以作为主动词。
谓语动词 时间助动词 状态主动词
be作为助动词和主动词的例子如下：
1. I am eating. 我在吃饭。
be为时间助动词 状态主动词
2. Dont be silly. 别傻了。
do为时间助动词 状态主动词
3. You are being stupid. （最近）你有点傻。
be为时间助动词 be 状态主动词
4. He has been to Africa. 他到过非洲。
has为时间助动词 be 状态主动词
5. She might have been lying to me. 她也许对我撒谎了。
might为时间助动词 lying 状态主动词
be 进行助动词
6. The job has been done. 工作已经完成。
has为时间助动词 done 状态主动词
been的用法和意思：
been是be的过去分词，作为动词，中文含义为“是”。been用在完成时和被动句中，其中现在完成时的构成为has/have been/done，过去完成时的构成为had been/done,当被动句的主语是物时，即用被动语态。
been是be的过去分词，中文意思为“是”，用于完成时，表示“已经过去”。
例句：
1、Scientists think that there has been life on Earth for millions of years.科学家认为生命存在于地球已经有几百万年了。
2、They have been playing football for 3 hours.他们已经踢了3小时的足球了。
3、I have been away from Paris for two weeks.我离开巴黎已经两星期了。
4、There have been many changes in recent years.近几年发生了许多变化。
5、We had to work within the parameters that had already been established.我们必须在已设定的范围内工作。
6、The resources at our disposal could have been better utilized.我们所掌握的资源本来可以利用得更好，获得更高的效益。
7、A new satellite has been put into orbit around the earth.
一颗新的人造卫星被送上了环绕地球的轨道。
8、The first part of the plan has been safely accomplished.计划的第一部分已顺利完成。
9、The new drug has not yet been licensed in the US.这种新药尚未在美国获得许可。
10、The theory has been superseded by more recent research.这一理论已为新近的研究所取代
has been算不算现在完成时，后面可以接形容词原型和动词过去分词吗？
算现在完成时，可以接形容词原型，例如：She have been more pretty than before.（她现在已经变得比以前更漂亮了。）也可以接动词的过去分词形式。例如：The thing has been finished.（这个事情已经完成了。）