2020-2021学年高中英语Unit2Improvingyourself突破语法大冲关教师用书外研版选择性必修第二册

Unit2ImprovingyourselfUnit2Improvingyourself过去完成时的被动语态[观察例句]11．Bynineo'clocklastnight，200pictureshadbeensenthadbeensentfromthespaceship.22．Myhomeworkhadbeenfinishedhadbeenfinishedby10：00thismorning.33．Shetoldmethatthefactoryhadbeenclosedhadbeencloseddown.44．IwastoldthatthetaskhadbeenfinishedhadbeenfinishedbeforeIgotthere.[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)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。Theworkhadbeenfinishedbyfiveo'clockyesterdayafternoon.Theclassroomhadn'tbeencleanedbeforetheteachercame.Howmanybuildingshadbeendestroyedwhenthehurricaneended?Hadthenewplanbeendiscussedbeforethemeeting?(2)用在told，said，knew，heard，thought等动词之后的宾语从句中。Hesaidtheproductioncostshadbeenreduced.Theboywasremindedthathishomeworkhadnotbeenhandedin.Themediareportedmorethan1，000peoplehadbeenkilledintheearthquake.[即学即练]用所给词的适当形式填空①Hedidwhathehadbeentold(tell)to.②Thepol