英语语法+牛津英语初中语法大全(四).docx

美联英语提供：牛津英语初中语法大全4关于英语那些你不知道的事都在这里/test/quwen.aspx?tid=16-73675-0语法分析：过去完成时常用在宾语从句中，尤其用在间接引语中。(3) As soon as she had done it, she knew it was a mistake.她刚一动手就知道做错了。语法分析：在状语从句中，也用过去完成时。(4) I had intended to come over to see you, but was prevented from doing so.我原打算过来看你，但受阻未来成。语法分析：有些词如hope, plan, mean, expect, intend, suppose, want以及think等有时用过去完成时表示一个本来打算做而未做，曾经设想而未实现的事。(5) He got here before I had got up.我还未起床，他就来了。语法分析：before之后可用过去完成时，表示一个过去未完成或未能来得及完成的动作，这个动作发生的时间迟于主句动作发生的时间。(6) We would get into trouble as soon as the gas had run out.汽油一用完，我们就会陷入困境。语法分析：在时间和条件状语从句中，过去完成时可大体过去将来完成时。巩固练习(1) She told me that she ______[break] her glasses yesterday.(2) The bell rang before I ______[complete] my paper.(3) I _____[think] that he had died at least two years ago.(4) I _____[hope] to enter a university, but didnt.(5) The concert was more successful than she _____[think].(6) She wore the necklace her mother _____[leave] her.(7) When he _____[sing] his song he sat down.(8) She told me that she _____[know] me since she was a child.参考答案(1) had broken? (2) had completed? (3) has thought? (4) had hoped? (5) had thought? (6) had left? (7) had sung? (8) had known29.关于完成时态的注意点例句I wont believe you until Ive seen you in the room with my own eyes.我要亲眼见到你在这个屋子里才相信你。语法分析在时间和条件状语从句中，可用现在完成时态代替将来完成时。延续性动词可用于现在完成时，可接表示段的时间状语。非延续性动词也可用于现在完成时，但不接表示段的时间状语。有时在口语中，可用一般过去时代替现在完成时。有些动词，如hope, plan, mean, expect和think等有时可用过去完成时来表示一个本来打算做而未做，曾经设想而未实现的事情。在时间和条件状语从句中，过去完成时可代替过去将来完成时。触类旁通(1) He has got constant help from her since he has known her.自从他认识她以来，他一直得到她的帮助。语法分析：为了强调从句谓语动词从过去某一时刻开始，一直延续到现在，可用现在完成时态。(2) I have never heard of her since she left.自她离开后湖，我从未听说过她。语法分析：since从句如果用现在完成时，其谓语动词一定是延续性的，如果是非延续性的，则只能用一般过去时。(3) The vistors have stayed here for three days.来访者在这儿住了三天。语法分析：延续性动词可用于现在完成时，可接表示段的时间状语。(4) The young man has joined the Party.这年轻人入了党。语法分析：非延续性动词也可用于现在完成时，但不接表示段的时间状语。(5) I had intended to come over to see you, but was prevented from doing so.我本打算来看望你，但受阻没有来成。语法分析：用过去完成时来表示一个本来打算做而未做，