2019届二轮复习现在完成进行时课件（共17张PPT） 17页

语法 现在完成进行时 Compare the two sentences. Liu Fang has played the pipa since the age of six. Liu Fang has been playing the pipa for the last three hours . Present perfect tense Present perfect progressive tense (have/has done) (have/has been doing) Phrases like this week, all the morning, these few days, for… , since… can be used in both. How do you understand the sentences? Liu Fang has given concerts since she was eleven. She’s been performing concerts every day since last month. Liu Fang has given concerts regularly since the age of eleven. The action lasts one month and maybe it will continue. Present perfect tense VS Present perfect progressive tense How do you understand the sentences? We have been cleaning the classroom. We have cleaned the classroom. The action is still continuing. The action is finished; the result is emphasized. Present perfect tense VS Present perfect progressive tense How do you understand the sentences? Have you been meeting her lately? Have you met her lately? The action repeats often. The action doesn’t repeat often. Present perfect tense VS Present perfect progressive tense How do you understand the sentences? I have been working all the morning. I have worked here since I graduated. The action only lasts temporarily. The state lasts quite long rather than action. Present perfect tense VS Present perfect progressive tense How do you understand the sentences? They’ve known each other since 1970. John has loved Mary since ten years ago. The property has belonged to my uncle during the last ten years. Such verbs cannot be used in present perfect progressive tense. Present perfect tense VS Present perfect progressive tense How do you understand the sentences? She has never seen a man like him. They have received no assistance from their friends. I haven’t spoken French for several years. Present perfect tense is preferred instead of present perfect progressive tense in a negative sentence. Present perfect tense VS Present perfect progressive tense How do you understand the sentences? He has taught English for twenty years. He has been teaching English for twenty years. Both tenses sometimes can be interchanged. Present perfect tense VS Present perfect progressive tense 1. She studied jazz in New York since 2003. → has studied / has been studying 2. My grandmother has been liking dancing all her life: whenever I hear 1940s dance music I think of her. → liked 3. The top string broke on my lute and I have been trying to repair it since this morning. W W R Check the verb tenses (R or W). —Excuse me, which movie are you waiting for? — The new Star Wars. We ________ here for more than two hours. A. waited B. wait C. would be waiting D. have been waiting Multiple choice Since its start, WeChat ________ into the most popular messaging communication service in China. A. has developed B. developed C. develops D. was developing —The room looks bigger! — We ______ the furniture. A. have changed B. had changed C. changed D. are changing I ________ half of the English novel, and I’ll try to finish it at the weekend. A. read B. have read C. am reading D. will read Mobile payment ___________ (become) more and more popular in the last two years . In recent years, stress ________________ (regard) as a cause of a whole range of medical problems, from high blood pressure to mental illness . Over the years, designers and artists ____________ (try) to capture the essentials of good design . Complete the sentences with the correct form of the words. has become has been regarded have been trying Summary Learning about a kind of verb tense — Present perfect progressive tense See you next time!