课堂要点精析
一、现在完成时的被动语态的结构
肯定式
主语+have/has been done. . .
否定式
主语+have/has not been done.. .
-般疑问式
Have/Has＋主语+been done. .. ?
特殊疑问式
疑问词+have/has＋主语+been done.. . ?

He has been selected to take part in the sports meeting.他已被挑选出来参加运动会。
The ink has not been removed from his overcoat.墨迹还没有从他外套上去掉。
Has the date for the next meeting been decided?下次会议的日期已确定了吗?
How long has the battery not been changed?电池多久没有更换了?

【即时演练1】——句型转换
The children have already been told the good news.①将上面的句子变为否定句。
The children haven't been told the good news yet.②将上面的句子变为一般疑问句。
Have the children been told the good news yet?③对上面句子中的 The children进行提问。Who has been told the good news yet?