现在完成时和现在完成进行时ppt课件.ppt

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1、现在完成时,1.She works in a factory.2.I was doing my homework at this time yesterday.3.We are going to have a picnic this Sunday.4.They held a sports meeting last week.5.Are you helping your mother .,现在完成时,1.过去发生的动作对现在造成的影响或结果。,2.过去已经开始，持续到现在的动作或状态,动词构成：have/has+v过去分词,have breakfast,I have just had my br

2、eakfast.,(现在我不饿),Im not hungry now,moved herein 2000,I still live here,I have lived here for three years.,I have lived here since 2000/three years ago.,Pay attention 注意,1.现在完成时句中常见的时间状语A.表示从过去一直持续到现在,不能是具体过去时间,( 1).for+表示一段时间的短语 ( 2).since+表示过去时间点的词语 ( 3).since+表示过去时间的时间状语从句,eg.I have been a teacher

3、 _ a year. He has been at this school _ 1992. We have learned 1,000 English words _ we came to this school.,for,since,since,不能是具体过去时间,B.just,already,yet,before/ ever,never 有此类副词时,常强调动作完成,不强调动作的持续.,eg.Have you _been to Japan? I have _ finished my homework. I have finished my homework _. I havent fini

4、shed my homework _.,ever,just,already,yet,.2 表示过去发生的某一动作对现在造成的影响或结果,常与一些时间状语,如:already, yet, ever, never, just, before, once, twice等连用，也可以和包括现在在内的时间状语，如these days, today, this year, so far等连用。,3. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如up to these few days/weeks/months/years, just, up to present(now), so far等:

5、Peter has written six papers so far. Up to the present everything has been successful.,现在完成时的未完成用法指的是动作开始于过去某一时刻，一直延续到现在，或可能还要继续下去。这里的动词要用持续性动词。常与for（+时间段）,since（+时间点）连用. Mary has been ill for three days. Mary has been ill since three days ago.,2.区分短暂性动词与持续性动词. 表示短暂性(瞬间性)的动词在现在完成时的句中不能和一段时间连用.即for,s

6、ince短语或how long问句,I have bought this pen for two months.The play has begun for an hour.Tom has joined the army for five years.The dog has died for a month.I have come here for forty days.,come/arrivego out leavebeginbuyborrowjoindiecatch a cold,be,be out,be away (from),be on,have,keep,be a member of

7、,be dead,have a cold,现在完成时与一般过去时的区别,现在完成时所表明的是过去发生的动作对现在的影响，强调的是现在的情况，不可以和表示过去的时间状语yesterday, in 1991, three days ago last time, last night等连用,一般过去时表明的是过去发生的事实，和现在不发生关系。,(一)当句中有never, ever, just, already, yet, before等时，常用现在完成时。,1. -Mum, may I go out and play basketball? -_you_ your homework yet? A.

8、Do; finish B. Are; finishing C. Did; finish D. Have; finished2. -_ you _anywhere before? -Yes, but I cant remember where I_A. Did; surf; surfed B. Have; surfed; surfed C. Did; surf; have surfed D. Have; surfed; have surfed,当句中有for +段时间或since +点时间等时，主句常用现在完成时，谓语动词必须是延续性动词,1. His brother has been to S

9、tone Forest twice_he came to Yunnan. A. after B. before C. since D. for2. Tom_the CD player for two weeks.A. has lent B. has borrowed C. has bought D. has had,3. I_a letter from him since he left. A. didnt receive B. havent got C. didnt have D. havent heard,考查have/has been (to, in)/have/has gone (to

10、)的区别,1. -Have you ever_Lintong to see the Terra Cotta Warriors?-Yes, I have. A. went to B. gone to C. been in D. been to2. My parents _ Shangdong for ten years. A. have been in B. have been to C. have gone to D. have been,3. I wont go to the concert because I _my ticket. A. lost B. dont lose C. have

11、 lost D. is coming,现在完成进行时,主语+have（has）been+动词-ing,（一）表示从过去某时开始一直持续到现在的动作，并且还将持续下去,The Chinese have been making paper for two thousand years. 中国有2000年的造纸历史。（动作还将继续下去） I have been learning English since three years ago. 自从三年前以来我一直在学英语。 （动作还将继续下去）I study for Engilsh since 10 years ago.,（二）表示在说话时刻之前到现在

12、正在进行的动作。,We have been waiting for you for half an hour. 我们已经等你半个钟头了(人还没到，如同在电话里说的，还会继续等),（三）有些现在完成进行时的句子等同于现在完成时的句子。 They have been living in this city for ten years. They have lived in this city for ten years. I have been working here for five years. I have worked here for five years.,（四）大多数现在完成进行时

13、的句子不等同于现在完成时的句子。,I have been writing a book.（动作还将继续下去） 我一直在写一本书。 I have written a book.（动作已经完成） 我已经写了一本书。 They have been building a bridge. 他们一直在造一座桥。 They have built a bridge. 他们造了一座桥。,（五）表示状态的动词不能用于现在完成进行时。 I have known him for years. 我认识他已经好几年了。 * I have been knowing. 这类不能用于现在完成进行时的动词还有：love爱，lik

14、e喜欢，hate讨厌，等。,1. Im sure Andrew will win the first prize in the final. I think so. He _ for it for months. (2008江苏)A. is preparing B. was preparingC. had been preparingD. has been preparing,2. By the time he realizes he _ into a trap, itll be too late for him to do anything about it. (2008山东) A. wal

15、ks B.walked C. has walked D. had walked,3. So far this year we _ a fall in house prices by between 5 and 10 percent. (2008福建) A. saw B. see C. had seen D. have seen,4. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she_English for a year. (2007湖南) A. studies B. stu

16、died C. is studying D. has been studying,5. Danny _ hard for long to realize his dream and now he is popular. (2007福建) worksB. is working C. has workedD. had worked,6. I have got a headache.No wonder. You_ in front of that computer too long. (2007江西) A. work B. are working C. have been workingD. wor

17、ked,8. Now that she is out of job, Lucy _ going back to school，but she hasnt decided yet.(北京)had considered B. has been consideringC. considered D. is going to consider,10. Hi, Tracy，you look pale. I am tired. I _ the living room all day.painted . had painted C. have been painting D. have painted,Bye bye,