初三被动语态的结构及一些例子``

(1) am/is / are+及物动词的过去分词 ,体现一般现在时的被动语态
eg. English is spoken in their country.
(2) was/were +及物动词的过去分词 ,体现一般过去时的被动语态
eg. Our school wasn’t built in 1990.
Were the trees planted by him?
(3) will /shall+ 及物动词的过去分词，体现一般将来时的被动语态
eg. A: I shall send my boy to school next September.
P: My boy will be sent to school next september.
(4) would/should +及物动词的过去分词，体现一般过去将来时的被动语态
(5) have/has +been done, 体现现在完成时的被动语态
eg. A: We have studied English for nine years.
P: English has been studied for nine years by us.
(6) had + been done, 体现过去完成时的被动语态
eg. A: They had produced 100 cars by the end of last year.
P: 100 cars had been produced by the end of last year.
带情态动词的被动结构
其形式为：情态动词+be+动词过去式
• Can, could/ will,would/ shall, should/ may, might/ must/ ought to/ need/ have to.
• Eg. The baby can be taken good care of by the baby-sitter.
主动语态变被动语态应注意的问题
1.把主动语态变为被动语态时，应保留主动语态原时态。
Eg. S