第1个回答 2013-08-28
被动语态由"be的相应形式+及物动词的过去分词"构成,表示被动关系,即主语为动作的承受者
1被动语态的一般时态
一般现在时:am/is/are + 过去分词,如:The milk is brought to my door but the letters are left in the hall.
2. 一般过去时:was/were + 过去分词,如:Rome was not built in a day.
3. 一般将来时:will be + 过去分词,如:Oil imports will be increased.
4. 情态动词+ be + 过去分词,如:English cannot be learned in class only.
5. 动词make的宾语后接不带to的不定式,但用被动语态时不定式不省略to,如:Mothermade her leave the room
2被动语态的进行时态
现在进行时:由"am/is/are + being + 过去分词"构成,如:The problem is being dismissed by those students.
2. 过去进行时:由"was/were + being + 过去分词"构成,如:The corn was being harvested
early this year.
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