现在完成进行时及练习程序.ppt

现在完成进行时含义：动作自过去某时开始，一直延续到现在，并且还将持续下去；动作从过去某时开始，一直延续到说话时刻，可能刚刚结束。 进行时 I am reading the book. 完成时 I have read the book. 现在完成进行时 I have been reading the book. 1. 结构(“三合一”结构)： 1)肯定句: have/has been+V-ing （从过去到现在）一直在做某事 我在这坐了一个下午了。 他弟弟十岁起就一直收集各种各样的邮票。 2)否定句:have/has not been+V-ing 没有一直在做某事 我一个星期没有给花浇水了。 这些年，他都没有一直在这教书。 3)疑问句： Have/Has+主语+been+V-ing ? 你一直在写一本小说吗？ 他一直给你写信吗？ Im tired because Ive been running. 我很累因为我一直跑到现在。 （强调动作一直进行并持续到现在） 对比：Im tired because Ive run. 我累了因为我跑了。（强调动作已完成） I have been reading for 2 hours. [I am still reading now.] 4） 表示从过去到现在反复发生的动作You have been saying that for five years.  (这话你已经说了有五年了。） 3）和进行时一样，现在完成进行时也往往带有感情色彩（如赞扬、厌恶等）。 What have you been doing all the time? (这半天你在干什么？） 3. 时间状语 1）现在完成进行时通常 和“for…”或“since…”所引导的时间状语连用。 I have been waiting for a letter from my parents for two days. 雨已经下了三个小时 We have been studying here since 2004. 2）现在完成进行时还可以于these few days, this week, all the time， all night, all the morning, all one’s life, during the night, recently等连用： I’ve been writing letters all this morning. (我写了一上午的信。） I have been doing this all my life. (这个我做了一辈子啦。） Recently he has been doing his work quite regularly. (近来他都按时做作业。） 小试牛刀 1. — I’m sure Andrew will win the first prize in the final. — I think so. He _____________ for it for months. A. is preparing B. was preparing C. had been preparing D. has been preparing 2. —I have got a headache. —No wonder. You_______________ in front of that computer too long. A. work B. are working C. have been working D. worked 3. —Hi, Tracy，you look pale. —I am tired. I _______________ the living room all day. A. painted B. had painted C. have been painting D. have painted 4. Now that she is out of job, Lucy _______________ going back to school，but she hasn’t decided yet. A. had conside