人教版高中英语必修第二册19年版Unit3Theinternet词汇语法(14)

prize. 他获奖后相当开心。（状语从句）
She was not in the train that arrived just
now.
她不在刚到的那辆火车上。（定语从句）
3.现在完成时的被动语态
主动语态表示主语为动作的执行者；被动语态表示主语为动作的承受者。现在完成时的被动语态是指说话时已经完成的动作或出现的结果，强调过去的动作对现在造成的影响，但主语是行为动作的承受者。例如：
Much has been written about the wonders of the World Wide Web.（被动）
People have written much about the wonders of the World Wide Web.（主动）
Jan’s life has been greatly improved by the Internet. （被动）
The Internet has greatly improved Jan’s life. （主动）
一、现在完成时的被动语态的转变规则
1. 把主动语态的宾语变为被动语态的主语。
2. 把谓语变成被动结构（have/has been v-ed）。
3. 把主动语态的主语放在介词by之后做宾语，将主格
改为宾格。
例句：They have washed the dirty clothes.
→The dirty clothes have been washed (by them).
The experts have studied the plan for three times.
→The plan has been studied by the experts for three times.
二、现在完成时的被动语态的结构形式
例句：Two windows have been broken.
The car has not been repaired.
Has her work been finished?
Who has been invited?
三、现在完成时的被动语态的主要用法
1. 表示被动的动作发生在说话之前（即现在的过去），强调对现在造成的影响或结果，经常与一些副词连用，如already, ever, never, recently, lately, just,