Who had bought a new mobile phone?Who had cleaned the blackboard?Last class, who had been standing here in Class3?How many students had been sitting on the chairs in Class3?Past PerfectPast Perfect Continuous RevisionPast Perfect 过去完成时had+past participle( 动词的过去分词 ) 规则动词不规则动词助动词 ( 无人称变化 )regular verbsirregural verbs过去分词的构成：1. 规则动词的变化：a) 一般情况下在动词后面加 ed work ------ worked play -------- playedb) 以 e 结尾的动词直接加 d use ------ used refuse ------ refusedc) 以辅音字母加 y 结尾的动词，把 y 改 i 再加 edstudy ----- studiedcarry ----- carriedd) 以重读闭音节结尾的，前面有单个元音字母时，双写辅音字母，再加 edstop ---- stoppeddrop ------- dropped直接加 ed有 e 只加 d把 y 变 i 加ed重读双写加 ed2. 不规则动词的变化lightlighted/litholdheldbuy boughteateatenlose lost不规则动词的变化见 Moduel 5 表Past Perfect Continuous 过去完成进行时had been+ present participle( 动词的现在分词 ) 直接加， 去 e 加， 双拼加 ,改 ie 为 y 再加 ing现在分词的构成：a) 一般情况下在动词后面加 ing walk ------ walkingplay -------- playing b) 以 不发音的 e 结尾的动词去 e 加 -ing come------ comingdance------ dancing run ---- runningput ------- putting c) 以一个元音字母＋一个辅音字母结尾，且重读 的动词，则先双写该辅音字母，再加 -ing 。d) 以字母 ie 结尾的动词，变 ie 为 y ，再加 ingdie ---- dying lie ---- lyingUse the two tenses for the followingsentencesChina the 29th Olympic Games.(hold) had heldThe torch for 17days at the top of Bird’s Nest. (burn)had been burningHong Kong ____________ to China before Macao came back toChina.(return)had returnedThe passengers for a long time to get on the train.(wait)had been waitingsummary:1. 两种时态都是以 的时间为前提的。2. 过去完成时表示动作已经 , 强调 。而过去完成进行时强调动作在过去的某段时间内 。1.I the offi...
