现在完成时语法ppt课件.ppt
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1、有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。the Present Perfect Tense现在完成时现在完成时助动词助动词have (has)+过去分词过去分词done有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。past now Yesterday , we cleaned the classroom.Now , the classroom is clean because we have cle
2、aned it.用法用法1强调强调过去发生的动作过去发生的动作对对现在产生的现在产生的结结果或影响果或影响 有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。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 yester
3、day. 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.有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。“仍然,还仍然,还 ” 用在疑问句和否定句用在疑问句和否定句中,放在句末。中,放在句末。I havent read this book yet .Have you had breakfast yet ?already
4、:Yet:“已经已经”通常用于肯定句中通常用于肯定句中,放在句中。放在句中。 I have already read this book.有时,也用在疑问句中表示惊讶。有时,也用在疑问句中表示惊讶。 Have you eaten up all the food already ?有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。“从来不从来不” 用在否定句中用在否定句中,放在句放在句中。中。Is he famous ?I have never heard of him .evernever“曾经曾经”通
5、常用于疑问句通常用于疑问句和肯定句中和肯定句中,放在句中。放在句中。 I have ever seen this film.Have you ever been to the USA ?有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。“以前以前”用在完成时中,用在完成时中,放在句末。放在句末。have never read this kind of books before.justbefore“刚刚刚刚 ”用在陈述句中用在陈述句中,放在句中。放在句中。 I have just bought a no
6、vel。有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。She began to work in 2005.She still works here now. She has worked at this school for 7 years. 有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。now past I began to teach English at this school fiveyears
7、ago.I have taught English at this school for five years.用法用法2 2:过去发生的动作一直过去发生的动作一直延续延续到现在。到现在。 有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。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 .
8、 We _ (stay) in the USA since last Monday.have workedhave stayed有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。since and forThe woman has worked at this school for 2 years.( since two years ago)since 2 years agosince 1998since she came to the school)for + for + 时间段时间段since+si
9、nce+时间点时间点for 2 years/a long time有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。一、用一、用for和和since填空。填空。_three hours_three oclock_two days_yesterday afternoon_I came here_last Sunday_a week_a long time_1997 _two weeks_three years ago _ last monthforsinceforsincesincesinceforfor
10、sinceforsincesince有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。 1.Theyve known each other since_. A.1995 B. three years 2.Ive been interested in Chinese for_. A. last year B. one year 3. She has been a doctor for_. A. two years B.two years ago 4. Ive had a headache since_.
11、A. I got up this morning B. five hours 5. Weve been here for_. A. one hour B. one oclock AABAB有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。6. My parents have owned this house for_. A. a long time B. many years ago7. Theyve been in love since_. A. last spring B. three months
12、8. We have known each other since_. A. one year B. last year9. -How long have you been like this? -Since_. A.last night B. two days10.-How long has she worked here? -She has worked here for_. A. 1993 B. six yearsAABAB有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。 Exercise根据所
13、给情况,用根据所给情况,用just,already或或yet造句。造句。1.After lunch you go to see a friend at her house.She saysWould you like something to eat? You say: No, thank you. _( have lunch )2.Joe goes out. Five minutes later,the phone rings and the caller says Can I speak to Joe? You say: Im afraid _.( go out )he has just
14、gone outIve just had lunch.有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。3.You are eating in a restaurant this evening. The waiter thinks you have finished and starts to take your plate away.You say: Wait a moment !_ ( not / finish )4.You are going to a restaurant this eveni
15、ng.You phone to reserve(预定)预定)a table. Later your friend says Shall I phone to reserve a table? You say: No,_ it (do)I havent finished it yet.I have already done 有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企业文化氛围,依赖既开放又相互信任的合作环境。1.现在完成时用来表示现在完成时用来表示过去发生或已完成过去发生或已完成的动作或状态的动作或状态对现在造成的影响或结果对现在造成的影响
16、或结果,也也就是说就是说,动作或状态发生在动作或状态发生在过去但它的影响过去但它的影响现在还存在现在还存在. I have lost my wallet.(含义是含义是:现在我没有钱花现在我没有钱花了了.) Jane has just had breakfast.(含义是含义是:简现在不饿简现在不饿了了.) Michael has been ill.(含义是含义是:现在仍然很虚弱现在仍然很虚弱) He has returned from abroad. (含义是含义是:现在已在现在已在此地此地) 有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的企
17、业文化氛围,依赖既开放又相互信任的合作环境。2. 现在完成时可以用来表示现在完成时可以用来表示发生在过发生在过去某一时刻一直持续到现在的动作和去某一时刻一直持续到现在的动作和状态状态,常与表示常与表示持续的时间状语连用持续的时间状语连用. 表示持续动作或状态的动词多是表示持续动作或状态的动词多是延续延续性动词性动词。I havent seen her these days.Mary has been ill for three days. I have lived here since 1998. 有利于学习和创新的组织管理机制,创造充满活力的创新激励机制,以市场为导向,以顾客价值追求为中心的
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