现在完成时与一般过去时附比较练习.doc
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1、现在完成时一、构成1.肯定句: 主语+have/has+过去分词+(其他)。2. 否定句: 主语+have/has+not +过去分词+(其他)。3. 一般疑问句 Have/has+主语+过去分词? Yes, S+have/has. No, S+have/hasnt. 二、特征词already(肯定句)yet(否定句和疑问句)never,ever(疑问句)just (谓语动词之前) before(句末)so far= up to now, by now(到如今,迄今为止)in the past/last few years, (过去几年来)these days(这几天)since/ever s
2、ince(自从,从那时起)for+ 时间段 :for two years三、用法1.表示过去发生的某一动作对现在造成的影响或结果。 I have already seen the film.我已经看过这部电影了。(还记得内容) Jim has just lost his book.吉姆刚才把书丢了。(还没找到)2.常和表示从过去某一时刻延续到现在的一段时间的状语连用.如: for+时间段 for12 weeks/three minutes since+ 时间点(起点) since 9 oclock this morning since一段时间agofor时间段; since two weeks
3、 ago=for two weeks for a year=since a year ago; since 2000=for 9 years since+从句(从句常用一般过去时) The Greens have lived in Macao since they moved to Macao from Paris.格林一家从巴黎搬到澳门之后就一直住在澳门。四、时态填空:1.Are you sure you _(lose) the book?-Yes, I _(look) for it everywhere, but I still cant find it.2.We _ already _(
4、copy) these words.3. Jim _(just, watch) a football match. He is so tired and hungry.4. _you ever _(travel) on a train?5. -_ they _(see) the film yet?-Yes.They_(see) it already.-When_they_(see) it? -They _(see)it just now.6.- _ her sister _(be) to Nanning?-No,she_( never,be) there before.五、现在完成时与一般过去
5、时的区别现在完成时与一般过去时都表示“动作已经发生”,但不同点在于:(1) 现在完成时强调这一动作与现在的关系,即对现在产生的结果、影响等,而一般过去时只表示过去的事实,不表示和现在的关系。He has learned French for three years.他学法语已经三年了。He learned French for three years.他曾经学过三年法语。He cleaned the house yesterday.他昨天打扫过房间。The room is clean, for he has cleaned it already.房间很干净,因为他已经打扫过了。(2) 现在完成
6、时不可与表示过去的时间副词连用,而一般过去时则可以。He has done some washing yesterday.He did some washing yesterday.他昨天洗衣服了。六、 现在完成时与一般过去时练习1. - Where _you _ (put) the book? I cant see it anywhere. - I _(put) it right here. But now its gone. A. did ; put; put B. have; put; put C. did; put; have put D. have; put; have put 2.
7、 We havent heard from Jane for a long time. What do you suppose _ to her? A. was happening B. happens C. has happened D. happened 3. Hello, I _ you were in London. How long _ here? A. dont know; were you B. hadnt known; are you C. havent known; are D. didnt know; have you been 4. Im glad to tell you
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