2011年成考专升本英语考前复习笔记三

　　现在完成时的被动语态：

　　承受者+have（复数主语）/has been done by+执行者（不明确可省略）

　　E.g. 主动：Our School has finished many scientific researches.

　　被动：Many scientific researches have been finished by our school.

　　将来时态的被动语态：

　　承受者+（be going to/will/shall/be to）have been done by+执行者

　　E.g. 主动：We'll have finished the book by the end of September.

　　被动：The book will/shall have been finished by the end of September.

　　Note：by the end of 短语的用法

　　（1）Will have done by the end of +将来时态

　　（2）Had done by the end of +过去完成时态

　　E.g. The project had been made by the end of last week.