第1个回答 2007-12-30
被动语态就是将宾语和主语的位置对调,在把动词改成过去分词形式,结构是:be动词+动词过去分词
一般现、过用be done, be有人称、时、数变
例:主动:The children gave the foreign guests a warm welcome.
被动:The foreign guests were given a warm welcome by the children.
孩子们热烈地欢迎外宾。
完成时态have been done
例:主动:We have studied English for 3 years off and on at the spare-time school.
被动:English has been studied for 3 years off and on at the spare-time school. (have随新主语变为has)
我们已经在夜校里断断续续地学了三年英语了
过去完成时就是把完成时态中的have改成had
一般将来shall (will) be done
例:主动: We shall build several big modern power plants in our city next year.
被动:Several big modern power plants will be built in our city next year.
过年我市将建立几座大型现代化的发电厂。
注意:shall只用于第一人称
第2个回答 2007-12-30
楼上两位说的例句都对,被动语态就是主语是动词的承受者而不是实施者。
i am cleaning the windows
the windows are cleaned by me
句中,擦窗子的是“我”,动词是擦,窗子是被擦的。当“我”(施动者)做主语时,即为主动语态;当“窗子”(受动者)做主语时,即为被动态。
第3个回答 2007-12-30
英语里表示被动关系的一种, 一般形式be+动词被动形式(一般为在原形后加ed)
比如:I was asked a question at the meeting.
意思是我在会上被问了个问题,句中asked表示被问(原形是ask 问)
第4个回答 2007-12-30
我种树 是主动语态
树被我种 是被动语态
被动语态的格式是
be+done
比如:I plant the trees
The trees are planted by me