解析 being done:被动语态,意思是:正在被做(被完成) have been doing:现在完成进行时,表示已开始,正在进行,还没结束,意思是:一直做这个做到现在 having been done:被动语态,现在完成时,意思是:已经被完成 (好就请采纳.) 分析总结。 现在完成进行时表示已开始正在进行还没结束意思是...
1.have been done 曾经被 e.g.Taiwan has been taken charge of by the Japanese. 2.have been doing曾经干过一段时间...e.g.I have been walking along the lake. 3.4.是现在分词形式,一般用作状语,如 Having been bitten by a dog,now I am not a dog fan. Having written the same composition...
heve been可以看做have done,动词为be,表示完成,而且是现在完成时用havebe working是be doing的形式,动词为work,表示进行.因为be要与前面have构成完成时所以be 的形式是been你一开始把两部分分开看就容易理解了,慢慢就熟悉了.1+3The work has been finished.【现在完成时的被动】have been 可以看做have done,...
现在分词的完成式(having done/having been done)、完成进行式(having been doing)和___(done)示的动作或者状态,在谓语动词表示的动作或者状态___。 显然,这两条关于谓语动词和分词动词在发生的时间关系的表述中都提到了过去分词,也就是说,___。 因此,如果将选项C看成现在分词(的被动态)作后置定语,表示开或...
两者都有“已经完成”的意思 have done 指已经完成的动作，对时态要求不高 如：I have finished my homework since my mother comes back.have been doing指一直还在持续的动作，对时态要求比较高 如:I have been reading the book for the whole night....
1.have been done 曾经被 e.g.Taiwan has been taken charge of by the Japanese.2.have been doing曾经干过一段时间...e.g.I have been walking along the lake.3.4.是现在分词形式,一般用作状语,如 Having been bitten by a dog,now I am not a dog fan.Having written the same composition befor...
have been doing 着重强调动作的持续性和反复性，突出这种持续和反复对现在造成的影响；having done 是动词ing形式的完成时，表示在谓语动词之前完成的动作。
having done 做完和have been doing正在做完
*过去进行时 was/were doing was/were being done将来进行时 will/shall be doing will/shall be being done过去将来进行时would/should be doing would/should be being done*现在完成时 have/has done have/has been done*过去完成时 had done had been done将来完成时 will/shall have done will/shall ...
being done / having been done /have been doing 麻烦请告诉我它们的用法各自代表的意思还有它们之间的区别,感激不尽