Unit 3 Fit for life Grammar and usage 语法复习课件-2022-2023学年高中英语牛津译林版（2020）选择性必修 第二册

选择性必修二 Unit 3 语法复习 Learning objectives: By the end of this lesson, you will be able to: master the basic structure and usage of the present perfect continuous tense; distinguish between the present perfect continuous tense and the present perfect tense; apply the present perfect continuous tense in new contexts. have / has been doing Structure present perfect continuous tense have / has not been doing 1. 表示一个动作从过去一直持续到现在，并且可能仍在进行。 Now that she is out of job, Lucy has been considering going back to school, but she hasn’t decided yet. Usage present perfect continuous tense 2. 表示一个动作从过去一直持续到现在，刚刚结束。 Sorry, I’m late. Have you been waiting long? Usage present perfect continuous tense 3. 表示最近反复发生的动作，不一定持续进行。 He has been coming to see me recently. Usage present perfect continuous tense 最近他常来看我。 常与_______________________________________________ ________________________________等时间状语连用。 I have been shopping all day and I haven’t a penny left. Usage present perfect continuous tense all these days, this week / month, all day long, all the time, recently / lately, since … , for … 现在完成进行时的动作往往与_______的状态有联系。 I have been shopping all day and I haven’t a penny left. Usage present perfect continuous tense Your fingers are brown. You have been smoking too much. 现在 现在完成进行时强调动作的持续过程。 现在完成时强调动作行为的结果。 He has been writing a novel recently. He has written a novel recently. 动作结果 present perfect continuous tense VS present perfect tense 他最近一直在写小说。【持续进行，可能尚未完成】 他最近写了一部小说。【已完成】 现在完成进行时可表示动作的重复。 现在完成时一般只强调动作的结果。 Have you met her recently? Have you been meeting her recently? 动作反复 present perfect continuous tense VS present perfect tense 你最近见过她吗? 【动作结果】 你最近经常和她见面吗? 【动作重复】 现在完成进行时可表示表示满意、称赞、惊讶、厌恶等感情色彩。 现在完成时一般只是说明一个事实或结果，平铺直叙。 I have waited for you for two hours. I have been waiting for you for two hours. 感情色彩 present perfect continuous tense VS present perfect tense 【叙述事实】 【表示不满】 He is always helping others. 他总是帮助别人。【赞扬】 When they lived together, they were constan