初二英语下学期-现在完成时复习ppt格式-thePresentPerfect.pptVIP

the Present Perfect Tense 现在完成时 助动词have (has)+过去分词done past now Yesterday , we cleaned the classroom. Now , the classroom is clean because we have cleaned it. 用法1 强调过去发生的动作对现在产生的结果或影响 1. My father bought many books for me yesterday . Now , I have a lot to read because ________________________________ 2. I saw this film last week. Now, I know this film because I_____________________. 3. I did my homework yesterday. Now, I can give it to the teacher because I______________ my father has bought many books for me. have seen it before have done it. “从来不” 用在否定句中,放在句中。 Is he famous ?I have never heard of him . ever never “曾经”通常用于疑问句和肯定句中,放在句中。 I have ever seen this film. Have you ever been to the USA ? “仍然，还 ” 用在疑问句和否定句中，放在句末。 I haven’t read this book yet . Have you had breakfast yet ? already: Yet: “已经”通常用于肯定句中,放在句中。 I have already read this book. 有时，也用在疑问句中表示惊讶。 Have you eaten up all the food already ? “以前”用在完成时中，放在句末。 Ｉhave never read this kind of books before. just before “刚刚 ”用在陈述句中,放在句中。 I have just bought a novel。 She began to work in 2005. She still works here now. She has worked at this school for 8 years. now past I began to teach English at this school five years ago. I have taught English at this school for five years. 用法2： 过去发生的动作一直延续到现在。 1. I am a doctor. I began to work when I was 22.Now , I am 26. I ________ for four years. 2. We went to the USA last Monday. Today is Monday . We _________ (stay) in the USA since last Monday. have worked have stayed since and for The woman has worked at this school for 2 years.( since two years ago) since 2 years ago since 1998 since she came to the school) for + 时间段 since+时间点 for 2 years/a long time 1.现在完成时用来表示过去发生或已完成的动作或状态对现在造成的影响或结果,也就是说,动作或状态发生在过去但它的影响现在还存在. I have lost my wallet. (含义是:现在我没有钱花了.) Jane has just had it. (含义是:简现在不饿了.) Michael has been ill. (含义是:现在仍然很虚弱) He has returned from abroad. (含义是:现在已在此地) 2. 现在完成时可以用来表示发生在过去某一时刻一直持续到现在的动作和状态,常与表示持续的时间状语连用. 表示持续动作或状态的动词多是延续性动词。