现在进行时的基本用法: 1. 表示现在( 指说话人说话时) 正在发生的事情。 We are waiting for you. 2. 习惯进行:表示长期的或重复性的动作,说话时动作未必正在进行。 Mr. Green is writing another novel. (说话时并未在写,只处于写作的状态。) She is learning piano under Mr. Smith. 3. 表示渐变的动词有:get, grow, become, turn, run, go, begin等。 The leaves are turning red. It's getting warmer and warmer. 4. 与always, constantly, forever 等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩。 You are always changing your mind. 现在完成时行时的用法: 现在完成进行时表示从过去某一时间开始一直延续到现在的动作。现在这个动作可能刚刚终止,也可能仍在进行。 I have been sitting here all afternoon. 我在这儿坐了一下午了。 How long has it been raining? 雨下了多久了? They have been fighting for independence since 1960s. 他们从60年代以来一直为独立而斗争。 现在完成进行时和现在完成时的区别 1)现在完成进行时一般强调过去发生的动作现在仍在继续。 2)现在完成时强调过去发生的动作现在已经完成或表示曾经发生过。 I have been writing an article. 我一直在写一篇文章。(仍在) I have written an article. 这已写好一篇文章。(已完成) I have been reading that book since last week. 上周以来,我一直在读那本书。(还在读) I have read that book before. 以前我曾读过那本书。(动作在过去曾经发生过)
Friday, April 23, 2010
现在完成时行时
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment