《The internet》SectionⅢ PPT
專項突破
現在完成時的被動語態
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、現在完成時的被動語態的結構
肯定式 主語+have/has been done...
否定式 主語+have/has not been done...
一般疑問式 Have/Has+主語+been done...?
特殊疑問式 疑問詞+have/has+主語+been done...?
◆He has been selected to take part in the sports meeting.
他已被挑選出來參加運動會。
◆The ink has not been removed from his overcoat.
墨跡還沒有從他外套上去掉。
◆Has the date for the next meeting been decided?
下次會議的日期已確定了嗎?
◆How long has the battery not been changed?
電池多久沒有更換了?
二、現在完成時的被動語態的用法
1.現在完成時的被動語態同它的主動語態一樣,強調過去的動作對現在造成的影響或結果,通常與already, yet, just, never, recently等副詞連用。
◆The machine has already been repaired.
機器已經修好了。
2.表示一個被動的動作或狀態開始于過去,持續到現在,并可能持續下去,常與for或since引導的時間狀語連用,或用于“How long ...?”句型中。
◆Financial problems of the company have been discussed for nearly two hours.
公司的財務問題已被討論了近兩個小時了。
◆How long has this film been shown?
這部電影已放映多長時間了?
3.用在時間或條件狀語從句中,表示將來某時已完成的動作,即用現在完成時的被動語態代替將來完成時的被動語態。
◆You shouldn’t leave school before your homework has been finished.
在你的作業沒完成之前你不應該離開學校。
... ... ...
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