【复习】模块二各种时态-公开课探究.ppt

2.考查现在完成时与一般过去式的区别： ---- Have you read a book called Waiting For Anya? ---- Who _____ it ? ( 08北京卷) A. writes B. has written C. wrote D. had written 简析：一般过去时着重说明动作发生的时间、地点、方式等，与现在不发生联系；而现在完成时说明强调对现在有影响。 现在完成进行时 1.构成：助动词have (has) + been+doing (无被动) 2.用法： 1.表示从过去某时开始一直持续到现在的动作，并且还将持续下去。 The Chinese have been making paper for two thousand years. （动作还将继续下去） 2.表示在说话时刻之前到现在正在进行的动作。 We have been waiting for you for half an hour. (还会继续等) Present perfect or present perfect continuous tense? She is still reading the book. Li Jia has been reading a book about Stonehenge. Li Jia has read a book about Stonehenge. She finished reading the book. She knows the content of the book now. 1.现在完成时强调已完成，现在完成进行时强调持续性、未完成。 I have written an article. 　　　　 I have been writing an article. 2. 相对于现在完成时表示一次性,现在完成进行时可以表示动作的重复.如: I have met him at the library. I have been meeting him at the library. 现在完成进行时与现在完成时的区别 (我在图书馆见过他.) (我经常在图书馆看见他.) 3. 都可以表示刚刚结束的动作,但在含义上有区别. 现在完成时强调 动作的结果, 而现在完成进行时强调 动作的过程或事件的原因. — Why are you so tired ？ — Weve been cleaning the house. (强调事件“累”的原因“一直打扫”) —Weve cleaned the house. You may come in now. . (强调事件“打扫”的结果房子干净) 基础过关 ( ) 1. – Has your brother found his lost car ____? - No, he hasn’t. A. still B. already C. just D. yet ( ) 2. The visitors _____ here for a week. A. have left B. have come C. have arrived D. have been ( ) 3. Where ____ you _____ all these years, Jim? A. have, been B. did , be C. were, been D. did, stay ( ) 4. I’ve ____ this dictionary ____ a year. A. bought, for B. had, for C. bought, since D. had, since D D A B ( ) 5. You ____ here before, ____ you? A. never are, are B. never came, do C. have never been, have D. were never, were ( ) 6. The doctor ____ to Be