1、过去完成时的被动语态观察例句1By nine oclock last night，200 pictures had been sent from the spaceship.2My homework had been finished by 10：00 this morning.3She told me that the factory had been closed down.4I was told that the task had been finished before I got there.归纳用法一、构成形式(1)过去完成时的被动语态的肯定式为：had been done。(2)
2、过去完成时的被动语态的否定式为：had not been done。(3)过去完成时的被动语态的一般疑问式需将had提到主语的前面。(4)过去完成时的被动语态的特殊疑问式为：疑问词 had been done。二、基本用法过去完成时的被动语态常用于以下情况：(1)表示过去某一时间以前已经完成的动作，常与by，before等引导的时间状语连用。The work had been finished by five oclock yesterday afternoon.The classroom hadnt been cleaned before the teacher came.How many
3、buildings had been destroyed when the hurricane ended?Had the new plan been discussed before the meeting?(2)用在 told，said，knew，heard，thought等动词之后的宾语从句中。He said the production costs had been reduced.The boy was reminded that his homework had not been handed in.The media reported more than 1，000 people
4、 had been killed in the earthquake.即学即练用所给词的适当形式填空He did what he had been told(tell) to.The police finally recovered the paintings that had been stolen(steal)He asked if Mary had been sent(send) to hospital.单句语法填空1Her keys had been left(leave) in the office so Hellen had to wait until her husband ca
5、me home.2He woke up to find the work had been done(do) overnight.3The task had been finished(finish) before 12：00 yesterday.4He said that some factories had been built(build) in the city.5I didnt know that my watch had been mended(mend).短文语法填空I still remember last winter，when I woke up in the mornin
6、g，it 1.had stopped(stop) snowing.Looking outside of the window，the snow on our lawn 2.had been cleaned(clean) by my father.I closed the book that 3.had been borrowed(borrow) from local library and went downstairs for breakfast.Then my little brother came to tell me that all his homework 4.had been f
7、inished(finish)During the breakfast，one of my best 5.friends(friend) came to visit my family.She went to Australia last year.Before that she 6.had prepared(prepare) for the examination of University of Sydney for half a year.During her study，she 7.had learned(learn) the culture and professional know
8、ledge in her field.By the end of last fall a novel about Maori 8.had been finished(finish) by her.When she was in Australia，together with her friends and classmates，she 9.had planned(plan) to donate some money for the poor and the weak in China.So after her return，she went to Garze Tibetan Autonomous Prefecture to help the people in need.In total，100 people 10.had been helped(help) by her team by the end of last October.