→現在完成時

　　動詞的被動形式：has/have been done

　　例句：The house has been built.

　　→過去完成時

　　動詞的被動形式：had been done

　　例句：They said that their work had been finished.

　　含有情態動詞的被動語態:情態動詞+be+ done  Your homework must be handed in today.

　　其它幾種特殊句型：

　　It is said that ……..

　　It is well known that …….

　　It is reported that……

　　例：

　　①History is made by the people. (一般現在時)

　　②The cars were made in Tianjin in 1995. (一般過去時)

　　③The tree will be cut down next year.(一般將來時)

　　④The room must be kept clean.（含有情態動詞的被動語態）

　　⑤The door is being opened.（現在進行時）

　　⑥The film has been seen by me.（現在完成時）

　　注：☆不同時態的被動語態的差異主要體現在助動詞be的變化上,同時助動詞be還要在人稱和數上與主語保持一致。

　　③應用情況

　　行為的執行者不明確或不必說出來。

　　Eg:  A stranger was killed  last night.

　　用于強調動作的承受者而不是執行者。

　　Eg: The story is told everywhere in the city.

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