ThePresentPerfectTense_215906.pptVIP

现在完成时 1.基本结构 have / has + done 助动词 （可以帮助构成肯定、否定和疑问句） I/You/We/They have not finished the work. He/She/It has not finished the work. I/You/We/They have finished the work. He/She/It has finished the work. 否定式 肯定式 注：have(助动词) + done has(第三人称单数助动词) + done Yes, you/I have. No, you/I haven’t. Yes, he/she has. No, he/she hasn’t. Have I/you finished the work? Has he/she finished the work? 回答 疑问式 have not 常缩略为 haven’t。 has not 常缩略为 hasn’t。 He is full . The boy has had a big breakfast. 1.表示过去发生或已经完成的动作对现在产生影响。 2.基本功能： I have learned English for five years 2.过去某一时间点发生的动作持续 到现在或还将持续下去。 What are the key words for the Present Perfect Tense? 3.Brain-Storm A: ______ your brother ______ his homework yet? (finish) B: Yes, he ‘s already done it. Key words Has finished yet already 注意：already 用于肯定句， yet 用于疑问句和否定句中 A: _______ you ever _______ to the park? ( be ) B: No, never. Key words Have been yet already ever never 注意： ever 曾经 用于疑问句中 never 从不 带有否定意义 I ______ just ________ the desk, you can take it to your classroom . (repair) Key words have repaired yet ever never just already Just 刚刚 与现在完成时连用 一般置句中 Just now 刚才 与一般过去时连用 Tom ___________ in the factory since he left school ten years ago. (work ) Key words has worked yet ever never since already since 后面带过去时间或有一般过去时的句子 A: How long ______ you ________ in this school? (teach ) B: For 6 years. Key words have taught yet ever never since for already + 一段时间 We _______ only ____________ 100 trees so far. (plant ) Key words have planted yet ever never since for just already so far 到目前为止 He has bought the book. He has bought the book for a week. He has had the book for a week. buy have come /go/get to be in join be in be a …member leave be away