现在进行时的被动语态：

现在进行时的被动语态表示现在进行时态和被动语态的叠合，由am/is/are+being+done构成。

现在进行时态的被动语态的基本结构的构成：

1、现在进行时态的被动语态的肯定式为：am/is/are+being+done。
如：The question is being discussed at the meeting now. 这个问题现在正在会上被讨论。 
        Another bridge is being built over the Changjiang River at present. 目前长江上正在建造另一座大桥。
2、现在进行时态的被动语态的否定式为：am/is/are+not+being+done。
如：The baby isn't being taken good care of. 这婴儿没在得到很好的照顾。
        The animals are not being set free at present.目前这些动物还不能被放出。
3、现在进行时态的被动语态的一般疑问句需将am/is/are提到主语的前面。（回答用yes或no）
如：—Is a new library being put up in their school now？他们学校现在正在建一座新图书馆吗？
        —Yes, it is. 是，正在建一座新图书馆 
        —Are a number of Dongfeng trucks being shipped abroad? 一批东风卡车正被运往国外吗？
        —No, they aren't. 不，没有。
4、现在进行时态的被动语态的特殊疑问句为：疑问词+am/is/are+(主语)+being+done。
如：What is being done to the machine? 现在对这台机器要采取什么措施？
        How many houses are being built in the village? 村里正在建造多少房屋？ 
        When is the sports meeting being held in our school. 我校将在什么时候举行运动会？

现在进行时态的被动语态的用法：

1、现在进行时态的被动语态的同它的主动语态一样，表示现在正在进行的被动动作。
如：He is being interviewed by our headmaster now. 他正在接受我们校长的采访。
        This film is being shown now. 这部电影正在被放映。
2、现在进行时态的被动语态的同它的主动语态一样，表示现阶段正在进行的被动动作。
如：The disease is being studied by scientists. 科学家们正在研究这种疾病。 
        These animals are being hunted at such a speed that they will disappear soon.
        以如此速度捕杀动物，他们很快就会消失。
3、现在进行时态的被动语态一般不与表示一段时间的状语或表示次数的状语连用，这时需要用完成时态的被动语态。
例如：The watch is being repaired twice.
改成：The watch has been reparied twice.
            The house over there is being built for two months.
改成：The house over there has been built for two months.
4、少数及物动词的的进行时表示按计划、安排将要承受某个动作。
如：Some rock music is being played by the mnext. 下面将由他们演奏一些摇滚音乐。
        A party is being held tonight. 今晚将举办一场晚会。
5、典型错误：
1）遗漏助动词：
【误】The birds being set free at present.
【正】The birds are being set free at present.
2）遗漏介词：
【误】The children are being taken care by their aunt.
【正】The children are being taken care of by their aunt.
3）忽略动词的性质：
【误】The kind of cloth is being washed well.
【正】The kind of cloth washes well.
注：表示某种情况，状态或特点的动词，一般不用于被动语态。