Module4Grammar

Module 4 Grammar 现在完成进行时 例句展示 观察下列各句中动词时态的用法 然后加以总结 1 Mary has been considering going back to school but she hasn t decided yet 2 I have been waiting for you for about one hour 3 The experts have been discussing this problem this year 4 I have not haven t been working here for very long 5 How many years has she been learning English 自我归纳 1 现在完成进行时的构成 肯定式 doing 句 1 3 否定式have has not been doing 句 4 疑问句have has been doing 句 5 2 现在完成进行时的用法 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 句 表示在说话时刻之前刚刚结束的动作 句 表示到说话时为止的一段时间内一再重复的动作 句 Key 1 have has been 2 1 2 3 拓展 1 现在完成时与现在完成进行时的区别 现在完成时通常具有结果含义 完结性 而现在完成进行时则常常具有未 完结含义 He has written many articles for newspapers and journals 已完成 She has been writing a book 还在写 注 表示持续的动作或状态的动词如 work study wait be live teach stay 等用 这两种时态含义差不多 现在完成时与现在完成进行时都可表示延续至今的状态 但是现在完成进行 时常常具有短暂性 I have lived in Taiyuan 具有长期性 I have been living in Taiyuan 具有短暂性 与一般的现在完成时相比 现在完成进行时有时可以表示刚刚完结的动作 I have found the book that I have been looking for 现在完成进行时常常用于表示延续至今的连续性或重复性的动作 I ve been knocking at the door I think nobody is in 许多静态动词如 last see know have think 等只能用于现在完成时而不能用 于现在完成进行时 I have known her since my childhood 现在完成时通常只陈述事实 而现在完成进行时还可表示一种感情色彩 I have waited for two hours 陈述事实 I have been waiting for two hours 等得好辛苦 2 过去完成进行时与现在完成进行时的区别 过去完成进行时和现在完成进行时的用法是一致的 只不过是把时间从现在移 到了过去 I ve often been thinking of you 现在 I had often been thinking of you before you came back 过去 高考链接 从 A B C D 四个选项中 选出可以填入空白处的最佳选项 1 Tom in the library every night over the last three months A works B worked C has been working D had been working 2 I m sure you will do better in the test because you so hard this year A studied B had studied C will study D have been studying 3 When Alice came to she did not know how long she there A had been lying B has been lying C was lying D has lain 4 We on this project for four hours Let s have a rest A are working B have been working C worked D had worked 5 I have to see the doctor because I a lot lately A have been coughing B had coughed C coughed D cough 6 Joseph to evening classes since last month but h