过去完成时过去完成时 1 过去完成时过去完成时My grandmother told me she had lived here before.2 过去完成时过去完成时People had planted many trees before she left here.3 过去完成时过去完成时She said that she had planted this treetwo years before.4 过去完成时过去完成时People had lived a happy and green lifebefore the tall buildings were built.5 过去完成时过去完成时People had built many new roads and tall buildings by last year.6 过去完成时过去完成时People had taken many measures to lead a happy life by last year.7 过去完成时过去完成时 关注的句子关注的句子People had taken many measures to lead a happy life by last year.My grandmother told me she had lived here before.People had planted many trees before she left here.8 过去完成时过去完成时had done时间标志时间标志过去完成时过去完成时结构结构had been done9 过去完成时过去完成时by the end of last year时间标志时间标志 含义含义by the time 从句从句(一般过去时）一般过去时）表示到过去某一时刻为止，已经完成了的动作。表示到过去某一时刻为止，已经完成了的动作。by yesterdayby thenby four oclock10 过去完成时过去完成时By the end of last month, they had finished their work.By the time I got home, everyone had gone to bed.I had learned English all by myself by the age of 14.11 过去完成时过去完成时When/ before等引导的时间状语从句等引导的时间状语从句时间标志时间标志表示表示过去的过去过去的过去 含义二含义二表示一个动作在另一个过去动作之前已经完成。表示一个动作在另一个过去动作之前已经完成。两个动作都发生在过去，先发生的动作用两个动作都发生在过去，先发生的动作用过去完过去完成时成时，后发生的动作用，后发生的动作用一般过去时一般过去时。12 过去完成时过去完成时The film had already begun when we arrived last night.Before I got to the station , the train had left.He got home and suddenly realized he had forgotten to turn off the light.13 过去完成时过去完成时5.He said he _( not hear )from her since June.3.I _(work) in a company for two years before I came here.4.When everything _(be) ready, the plane took off.1.We _（ finish）the work by nine oclock yesterday.2.By July last year, she _(study)here for three years.had finished had studied had worked had been had not heard 练一练练一练14 过去完成时过去完成时had done时间标志时间标志过去完成时的两个含义过去完成时的两个含义结构结构 回顾总结回顾总结had been done15同学，下节再见：）同学，下节再见：）16