Unit3 Family Matters- Using language 语法课件-2022-2023学年高中英语外研版（2019）必修第一册

Unit 3 Family Matters grammar 过 去 现 在 将 来 过去将来 一 般 进 行 完 成 完 成 进 行 was/were,did am/is/are, do will do would do was/were doing am/is/are doing will be doing had done have done will have done have been doing → 现在完成进行时(have been doing) 从过去开始持续到现在，并且会继续延续下去。强调动作的反复。 1) —Excuse me, which movie are you waiting for? —The new Star Wars.We ________(wait) here for more than two hours. 2) The manager ______________(tell) the workers how to improve the program since 9 am. have been waiting have been telling → 过去完成时(had done) 1.在过去的某个时刻或动作以前已经发生的动作，表示"过去的过去"。 They __________(get) everything ready before I came. 2."It was…since..." "It was the first/ second/ third… time that…" "By the time...(表示过去时间的句子)+主句(过去完成时)"。 "By the end of...(表示过去时间的名词)+主句(过去完成时)"。 had got 1) It was at least three months since I _____ (leave)Beijing. 2) It was the first time that I_________(chat) online in English. 3) By the time Jack returned home from England, his son________