8年级英语外研版上现在完成时课件.ppt

* Module 2 Unit 3 现在完成时态的用法 语法： 现在完成时态 用法一：表示过去或已经完成的动作对现在造成的影响或结果。 构成：have （has)+动词的过去分词 I have finished my homework He has returned the book His father has died Her mother has bought a new dress for her （不必再做） （书不在这儿） （不在人世） （有一件新衣服） 我完成了我的家庭作业 我归还了那本书 他父亲死了 她母亲给她买了一件衣服 比较：现在完成时和一般过去时区别 现在完成时：强调过去的动作对现在影响 一般过去时：强调过去发生的事情 我吃过早饭 I have had breakfast 我一小时前吃过早饭 I had breakfast an hour ago 他离开家乡了 He has left his hometown 他去年离开家乡了 He left his hometown last year 总结： 过去时常和时间状语连用 完成时不和过去时间连用 翻译下面的句子 1）David写了一封信给 他的朋友 2）他参观过那个工厂 3）她看过这部电影 4）他们打扫过教室 5）他去年来过这儿 6）我们昨天和2班举行一场篮球赛 1）David has written a letter to his friend 2)He has visited the factory 3)She has seen the movie 4)They have cleaned the classroom 5)He came here last year 6)We had a basketball game with Class2 yesterday 怎样把上面的句子变一般疑问句？ 1）Has David written a letter to his friend ? 2)Has he visited the factory ? 3)Has she seen the movie ? 5) Did he come here last year? Yes he has /No he hasn’t 4)Have they cleaned the classroom ? Yes they have /No they haven’t 你看过这部电影吗？ Have you seen the film? 翻译： 他看过这本书吗？ Has he read the book ? 你曾经吃过饺子吗 ？ Have you ever eaten dumplings ? 你曾经做过饭吗？ Have you made a meal ? 总结： 完成时可以和ever already（已经 ）yet（已经，还） 连用 。 We have already finished our homework . We haven’t finished our homework yet. Have you finished your homework yet ? 肯定句 否定句 一般疑问句 *