被动语态在各种时态的结构,例如主语加be done....
热心网友
谓语动词的语态表示句子的主语和谓语动作之间的关系-1）当句子的主语是谓语动作的执行者时，主、谓之间的关系称为主动语态；2）当句子的主语是谓语动作的承受者时，主、谓之间的关系称为被动语态。例如：I teach English。（主动语态）我教英语。Our English is taught by him。（被动语态）我们的英语是由他教的。He speaks English。（主动语态）他说英文。English is spoken in many countries all over the world。（被动语态）世界许多国家都讲英语。在被动语态的句子中，谓语部分的结构是be + p。p。（过去分词）。被动语态的句子有时态的变化，这个变化反映在be动词上。也就是说，把一个句子做成被动语态的句子，只需要写出BE动词的所需时态，再加上所给动词的过去分词就行了。当然，这只是指谓语部分而言。我们知道，be动词作为一个独立的谓语动词有自己现在分词（being）和过去分词 （been）。那么，下面我们来看看be在各种时态中的变化形式：一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will + be 过去将来时 would / should + be 现在进行时 am / is / are + being 过去进行时 was / were + being 现在完成时 have / has + been 过去完成时 had + been 说明：1）以上的八个时态可用于被动式，其它没有列举的时态都不宜用于被动语态的句子中。2）另外，表中被斜线隔开的词表示，供根据具体情况作选择。弄清楚了be在各种时态中的变化形式以后，我们就能很轻松地写出被动语态的各种时态了。我们可看看下面的实例：English is spoken in many countries all over the world 。（一般现在时）世界上许多国家都讲英文。Some TV sets for sale in the department store were stolen last night。 （一般过去时）那家商场用来出售的部分电视机昨晚被盗。He won't be allowed, by his father, to marry Larra。 （一般将来时）他父亲不会让他娶拉拉为妻的。They would be sent to the army when they finished the training。 （过去将来时）他们结束训练时将被派往部队。The project is being carried out。（现在进行时）这个计划正在执行中。The case was being investigated then。（过去进行时）那时这案子正在调查中。This novel has been translated into several languages。 （现在完成时）这本小说已被译成了几种语言。They said that production costs had been reduced。（过去完成时）他们说生产成本已经下降了。。
热心网友
被动语态在各种时态的结构其实质可看成:be动词各个时态的变化首先被动态的基本结构是be + 过去分词根据be动词的各式时态的变化,可得出被动态的不同时态下的形式:例如:一般现在时:be动词考虑用am,is,are,因此其被动语态为:am/is/are+done 现在进行时:be动词变成现在进行时也就是am/is/are+being,因此其被动语态为:am/is/are+being+done其余的类推,不作赘述.
热心网友
it will be done; it will being done, it will been doneit is to be done; it is being done; it is been doneit was to be done; it was being done; it has been done