《The internet》SectionⅢ PPT
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《The internet》SectionⅢ PPT《The internet》SectionⅢ PPT
现在完成时的被动语态
1.(教材P28)Much________________________ (write) about the wonders of the World Wide Web.
2.(教材P28)But the Internet _________________ (do) much more for people than simply make life more convenient.
3.(教材P28)Many people _______________________ (help) by the club.
4.(教材P28)She no longer feels lonely, and her company __________________ (become) quite successful.
5.(教材P32)Today I thought I’d blog about a question that _________________ (ask) many times—how do you stay safe online and avoid bad experiences on the Internet?
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...
一般疑问式 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?
二、现在完成时的被动语态的用法
1.现在完成时的被动语态同它的主动语态一样,强调过去的动作对现在造成的影响或结果,通常与already, yet, just, never, recently等副词连用。
◆The machine has already been repaired.
机器已经修好了。
2.表示一个被动的动作或状态开始于过去,持续到现在,并可能持续下去,常与for或since引导的时间状语连用,或用于“How long ...?”句型中。
◆Financial problems of the company have been discussed for nearly two hours.
公司的财务问题已被讨论了近两个小时了。
◆How long has this film been shown?
这部电影已放映多长时间了?
3.用在时间或条件状语从句中,表示将来某时已完成的动作,即用现在完成时的被动语态代替将来完成时的被动语态。
◆You shouldn’t leave school before your homework has been finished.
在你的作业没完成之前你不应该离开学校。
... ... ...
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