现在完成时中非延续性动词如何变为延续性动词

现在完成时中非延续性动词的转换现在完成时是初中英语语法的重点之一。

它表示过去发生的某一动作或存在的状态，一直持续到现在，并可以和以for或since引导的表示一段时间的状语连用，也可以用在以“how long”提问的句子中，句子中的谓语动词一般为延续性动词。

但是，有些动词所表示的动作是短暂的，这类动词叫做非延续性动词。

如：come, go, reach, arrive, leave, borrow, buy, join, die, begin, start, finish等。

在现在完成时的句子中，非延续性动词作谓语动词时，不能和表示一段时间的状语连用。

同学们在使用这两类动词作谓语动词时，常会出现错误。

例如：（误）Tom has bought the book for a week.（正）Tom has had the book for a week.（误）My father had joined the Party for ten years.（正）My father has been in the Party for ten years.如果要表示动作的连续性，就要把非延续性动词转换成相应的延续性动词或短语，具体转换如下：come/go/reach/arrive→be in/at, leave→be away from, borrow→keep, buy→have, join→be in/be a member of, die→be dead, start/begin→be on, finish/end→be over, open→be open (adj.), close→be closed (adj.), marry→be married注意：1. 非延续性动词可以在现在完成时的否定句中作谓语，并可以与for，since引导的时间状语连用，表示动作的延续过程。

例如：She hasn’t bought any new clothes since last year.2. 在现在完成时的肯定句中，非延续性动词作谓语时不能与for，since引导的表示一段时间的状语连用，但可以用其他句式来表示同一个意思。

现在完成时中非延续性动词的转换现在完成时表示过去发生的某一动作或存在的状态，一直持续到现在，并可以和以for或since引导的表示一段时间的状语连用，也可以用在以“how long”提问的句子中，句子中的谓语动词一般为延续性动词。

但是，有些动词所表示的动作是短暂的，这类动词叫做非延续性动词。

如：come, go, reach, arrive, leave, borrow, buy, join, die, begin, start, finish等。

在现在完成时的句子中，非延续性动词作谓语动词时，不能和表示一段时间的状语连用。

表示动作的连续性，就要把非延续性动词转换成相应的延续性动词或短语，具体转换如下：come/go/reach/arrive→be in/at, leave→be away from, borrow→keep, buy→have, join →be in/be a member of, die→be dead, start/begin→be on, finish/end→be over, open→be open (adj.), close→be closed (adj.), marry→be married come to / go back to / return to→ be back to go out → be out become → be get up → be up；die → be dead；fall asleep / get tot sleep → be asleep；lose → not have ；put on → wear catch / get a cold → have a cold；get to know → know have / has gone to → have been in注意：1. 非延续性动词可以在现在完成时的否定句中作谓语，并可以与for，since引导的时间状语连用，表示动作的延续过程。

（完整版）非延续性动词转换成延续性动词非延续性动词与延续性动词的转换1. 转换为相应的延续性动词，用于现在完成时。

borrow — keep buy — haveput on — wear catch a cold — have a cold get to know —know get to sleep — sleep2. 转化为“be + 形容词/副词/介词/名词”begin / start — be on go out — be outclose — be closed open — be openget to/arrive/reach — be (in) die — be deadleave — be away finish — be overfall sleep — be asleep join — be in/be a member of become — be make friends — be friends come/go/ — be + 相应的介词短语非延续性动词与延续性动词的转换1. 转换为相应的延续性动词，用于现在完成时。

borrow — keep buy — haveput on — wear catch a cold — have a cold get to know —know get to sleep — sleep2. 转化为“be + 形容词/副词/介词/名词”begin / start — be on go out — be outclose — be closed open — be openget to/arrive/reach — be (in) die — be deadleave — be away finish — be overfall sleep — be asleep join — be in/be a member of become — be make friends — be friends come/go/ — be + 相应的介词短语非延续性动词与延续性动词的转换1. 转换为相应的延续性动词，用于现在完成时。

现在完成时非延续性动词与延续性动词的转化buy-hadleave-been awayborrow/lend-keptstart/begin-been ongo to-been to/gone to/been income/arrive/get/reach/move---be in/atdie----be deadbegin/start---be onfall asleep----be asleepclose---be closedcatch a cold---have a coldput on ----wearborrow/lend----keepopen---be openbecome-----beleave/go----be away(from)end/finish-----be overfinish/end ---be over start/begin----be on come/go back----be back go/leave ---be away get to know----know become---be join----be a member of / be in …come/arrive-----be here/ in put on —wear go to sleep--- be asleep catch a cold—have a cold marry---be marriedeg:( 误) I have bought the book for 2 weeks .( 正 ) I have had the book for 2 weeks.( 误 ) The dog has died for 5 days.( 正)The dog has been dead for 5 days.2.It is / has been + 段时间since + sentence ( 一般过去时) Eg: ( 误) He has joined the League for three years.( 正)He has been in the League for three years.( 正) He has a member of the League for three years( 正) It is three years since he joined the League. 他入团已三年了1. His father ______ the Party since 1978 .Ａ. joined Ｂ. has joined Ｃ. was in Ｄ. has been in2.—Do you know him well ?—Sure .We _________ friends since ten years ago .Ａ. were Ｂ. have been Ｃ. have become Ｄ. have made3.—How long have you ____ here ?—About two months .Ａ. been Ｂ. gone Ｃ. come Ｄ. arrived4. Hurry up! The play __________ for ten minutes.Ａ. has begun Ｂ. had begunＣ. has been on Ｄ. began5. His uncle died two years ago .（改变句子，句意不变）His uncle has _______ for two years6. Her mother has been a Party member for three years .（同义句）Her mother _______ the party three years ________.7. It _____ ten years since he left the army .Ａ. is Ｂ. has Ｃ. will Ｄ. was8、Miss Gao left an hour ago. (同义句转换)Miss Gao ________ _______ ________ ________ an hour ago.9、Her mother has been a Party member for three years .（同义句）Her mother _______ the Party three years ________ .10、The Green Family moved to France two years ago. (同义句) ____ two years ____the Green family moved to France.11.The bus has arrived here. It arrived ten minutes ago. (合并一个句子)。

现在完成时中瞬间动词变延续性动词总结现在完成时是英语中一种重要的时态形式，用于表示过去发生的动作或事件对现在造成的影响或结果。

在现在完成时中，有两类常见的动词形式，即瞬间动词与延续性动词。

本文旨在总结现在完成时中瞬间动词如何变成延续性动词的规则和特点。

1. 延续性动词的定义：延续性动词表示一个动作或状态在时间上的延续，通常与时间段、频率或者持续性相联系。

例如：live（居住），work（工作），study（学习）等。

2. 瞬间动词的定义：瞬间动词表示一个动作或状态在时间上的瞬间发生，通常没有延续性。

例如：arrive（到达），finish（完成），buy （购买）等。

现在完成时中，将瞬间动词转变为延续性动词的方法如下：1. 加入持续性的时间状语：通过加入表示时间段的状语来表达动作的延续性。

例如：- He has been living in London for three years.（他已经在伦敦居住三年了。

）- She has been studying English since last month.（她从上个月开始一直在学习英语。

）2. 加入频率状语：通过加入表示动作频率的状语来表达延续性。

例如：- They have been playing tennis every weekend.（他们每个周末都在打网球。

）- I have been working out at the gym twice a week.（我每周在健身房锻炼两次。

）3. 加入表示动作状态的状语：通过加入表示动作状态的状语来表达延续性。

例如：- The team has been practicing hard for the upcoming tournament.（这个团队一直在为即将到来的比赛进行努力训练。

）- She has been studying diligently for her exams.（她为了考试一直努力学习。

延续性动词与非延续性动词之间的转换：leave --- be away, borrow --- keep, buy --- have, begin/start --- be on, die --- be dead, finish --- be over, join --- be in+组织机构, be a member of+组织机构, get up---be up, come here --- be here, go there --- be there, become --- be, come back --- be back, get to/ arrive/reach --- be (in), leave --- be away from,补充练习：1. When he arrived at the bus stop, the bus ________ for 20 minutes.A. has leftB. had leftC. has been awayD. had been away2. I ______ the League for 5 years so far.A. joinedB. have joinedC. have been in3. The factory ________ since the February of 1988.A . has been open B. has opened C. was open D. opened4. Mary and Rose _______friends since they met in 2000.A. have madeB. have beenC. madeD. have becomemustn't ________ until he comes back.A. be awayB. leaveC. be leftmeeting _______ for a week now.A. has finishedB. has endedC. has been overGao ______ this school for nearly 5 years.A. has been inB. has come toC. has taught______ a teacher for 4 years .A. has beenB. has becomeC. wasD. became9. I ______ home for a week.A. have returnedB. have been backC. returned10. How long _______ he ________A. diedB. has, diedC. has, been dead________ the car for a week.A. boughtB. has boughtC. has had2000, he _____ his hometown.A. has leftB. has moved awayC. has been away from'll lend you the book , but you can only _____ it for 2 days.A. borrowB. keepC. take________ for 2 hours.A. got upB. has got upC. has been upHow long can I ______ the book ------ Two weeks.A. borrowB. lendC. getD. keep情态动词专项复习( ) 1. Mr Wang ______ be in Nanjing now, he went to Beijing only this morning.A. mustn’tB. may notC. can’tD. needn’t( ) 2. –Must I saty at home, Mum --No, you ______.A. needn’tB. mustn’tC. don’tD. may not( ) 3. –Can you go swimming with us this afternoon--Sorry, I can’t. I _____ take care of my little sister at home because my mother is ill.A. canB. mayC. wouldD. have to( ) 4. –May I go to the cinema, Mum --Certainly. But you ______ be back by 11 o’clock.A. canB. mayC. mustD. need( ) 5. To make our city more beautiful, rubbish ______ into the river.A. needn’t be thrownB. mustn’t be thrownC. can’t throwD. may n ot throw( ) 6. –May I go out to play basketball, Dad--No, you ______. You must finish your homework first.A. mustn’tB. may notC. couldn’tD. needn’t( ) 7. –Where is Jack, please --He _____ be in the reading room.A. canB. needC. wouldD. must( ) 8. –Who is the man over there Is it Mr Li--No, it ______ be him. Mr Li is much taller.A. musn’tB. may notC. can’tD. needn’t( ) 9. These books ______ out of the reading room. You have to read them here.A. can’t takeB. must be takenC. can takeD. mustn’t be taken( ) 10. –Mum, may I watch TV now--Sure, but you ______ help me with my housework first.A. canB. mayC. mustD. could( ) 11. The boy said he had to speak English in class, but he ______ speak it after calss.A. couldB. didn’t have toC. mightD. shouldn’t( ) 12. –Must we hand in the papers now --No, you ______.A. can’tB. may notC. mustn’tD. needn’t( ) 13. John ______ go there with us tonight, but he isn’t very sure about it.A. mustB. canC. willD. may( ) 14. Even the top students in our class can’t work out this problem. So it ______ be very difficult.A. canB. mayC. mustD. need( ) 15. Put on more clothes. You ______ be feeling cold with only a shirt on.A. canB. couldC. wouldD. must( ) 16. It’s still early. You ______.A. mustn’t hurryB. wouldn’t hurryC. may not hurryD. don’t have to hurry ( ) 17. –May I stop here --No, you ______.A. mustn’tB. might notC. needn’tD. won’t( ) 18. A computer ______ think for itself, it must be told what to do.A. can’tB. couldn’tC. may notD. might not( ) 19. –Could I borrow your dictionary -- Yes, of course you _______.A. mightB. willC. canD. should( ) 20. Peter ______ come with us tonight, but he isn’t very sure yet.A. mustB. mayC. canD. will( ) 21. Michael ______ be a policeman, for he’s much too short.A. needn’tB. can’tC. shouldD. may( ) 22. ______ I know your nameA. MayB. WillC. ShallD. Must( ) 23. You ______ be more careful next time.A. have toB. mayC. mustD. might( ) 24. You ______ miss the lesson, though we ______ have it on Thursday.A. mustn’t; needn’tB. needn’t; mustn’tC. mustn’t; mustn’tD. needn’t;needn’t( ) 25. This pen looks like mine, yet it isn’t. whose ______ it beA. mustB. mayC. wouldD. can( ) 26. What kinds of homes will we live in the future Nobody ______ be sure, but scientists are working out new ideas now.A. willB. mayC. canD. must( ) 27. I ______ like to know where you were born.A. shallB. shouldC. doD. may( ) 28. ______ you be happy!A. MightB. MustC. WishD. May( ) 29. A teacher ______ do every exercise, but a student must.A. may notB. needn’tC. can’tD. mustn’t( ) 30. The matter ______ be changed into a gas, but it _______ be heated to its boiling point.A. may; needn’tB. may; canC. mustn’t; needn’tD. can; must( ) 31. Teachers and students ______ look coldly at you for a day or two, but there are friendly feelings in their hearts.A. mustB. canC. mayD. should( ) 32. Cars and buses ______ stop when the traffic lights turn red.A. canB. needC. mayD. must( ) 33. –Do you think his story ______ true --I don’ think so. But it sounds good.A. must beB. may beC. can beD. has to be( ) 34. Look out! The knife is very sharp. You ______ cut your finger.A. needB. mustC. shouldD. may( ) 35. –How long ______ the book be kept--For two weeks, but you ______ return it on time.A. can; mayB. may; needC. can; mustD. must; need( ) 36. – May I have an apple, Mum--Certainly. But you ______ wash your hands firstA. mayB. mustC. canD. need( ) 37. –There is a lot of smoke coming out of the teaching building there.--Really It ______ be a fire, most probably.A. canB. ought toC. mayD. must( ) 38. –Shall I tell John about the bad news--No, you ______. I think that will make him sad.A. needn’tB. wouldn’tC. shouldn’tD. mustn’t( ) 39. –Could I call you by your first name --Yes, you ______.A. willB. couldC. mayD. might( ) 40. –Let’s go to the ci nema, shall we -- _______.A. No, I can’tB. Yes, I willC. Yes, thank youD. No, we’d better not( ) 41. --______ the man there be our new teacher--He ______ be, but I’m not sure.A. May; mustn’tB. Can; mayC. Must; can’tD.Can; can’t( ) 42. –Sometime is knocking at the door. Who ______ it be--It ______ be Tom. He is still in the school.A. can; can’tB. can; mustn’tC. might; couldD. might; may专题复习( ) 1. -- How long may I ______ your book--For a we ek. But you musn’t ______ it to others.A. borrow; lendB. keep; lendC. lend; borrowD. keep; borrow( ) 2. It won’t ______ them much time to fly to Beijing from Shanghai.A. spendB. useC. takeD. pay( ) 3. Mr Wang ______ be in Nanjing now, he went to Beijing only this morning.A. mustn’t beB. may notC. can’tD. needn’t( ) 4. –Do you like the music the Moonlight Sonata --Yes, it ______ really beautiful.A. feelsB. soundsC. listensD. hears( ) 5. Lily finished _______ the book yesterday.A. readB. readingC. to readD. reads( ) 6. Mrs Brown isn’t here. She has to ______ her baby at home.A. look atB. look forC. look likeD. look after( ) 7. I have to go now. please remember to _______ the lights when you leave.A. turn offB. turn downC. turn upD. turn on( ) 8. Susan’s parents have bought a large house with a swimming pool. It _______ be very expensive.A. mustB. canC. mustn’tD. can’t( ) 9. –It’s too hot. Would you mind _______ the door -- _______. Please do it now.A. to open; OKB. opening; Certainly notC. opening; Of courseD. to open; Good idea( ) 10. I want to _______ this book for a month.A. borrowB. keepC. lendD. get( ) 11. –How many times _______ you _______ to Beijing this year --Three times.A. have; beenB. had; beenC. have; goneD. had; gone( ) 12. What a nice bag! But she _______ only thirty dollars for it.A. costB. tookC. spendD. paid( ) 13. Cotton _______ nice and soft.A. is feltB. is feelingC. feelD. feels( ) 14. I think this is the best way to solve the problem. Do you _______ meA. play withB. hear ofC. agree withD. get on well with( ) 15. –Guess who is coming to supper. – I don’t know. _______ me.A. SpeakB. SayC. TellD. Tell( ) 16. Please _______ your phones here with you tomorrow.A. takeB. bringC. carryD. lift( ) 17. Don’t _______ your lessons. We’ll help you.A. worryB. worried aboutC. be worried aboutD. be afraid( ) 18. The window is broken. Try to _______ who broke it.A. find outB. findC. lookD. look for( ) 19. He could _______ neither French nor German. So I ______ with him in English.A. speak; talkedB. talk; toldC. say; spokeD. tell; talked( ) 20. The ticket is on the floor. Would you please _______ for meA. pick it upB. pick up itC. pick up themD. pick them up( ) 21. If you don’t know a word, you must _______ the word in a dictionary.A. look upB. look downC. look overD. look out( ) 22. It’s time for class. We’d better _______.A. stop to talkB. to stop to talkC. stop talkingD. to stop talking( ) 23. There was a strange sound outside. Mary went out and _______ around, but she _______ nothing.A. looked; sawB. saw; sawC. watched; lookedD. looked; find( ) 24. The woman _______ the child quickly and took him to hospital.A. put onB. dressedC. had onD. was wearing( ) 25. –Oh, you painted the walls yourself--Yes. It was not hard. The whole work didn’t _______ much.A. wantB. costC. spendD. pay( ) 26. --_______ all your things, Tom! I hate them here and there. –OK, Mum.A. Put upB. Put onC. Put downD. Put away( ) 27. Yuki loves wearing strange hats because she wants people to _______ her.A. believeB. controlC. noticeD. visit( ) 28. _______! It’s the music of Mozart. Be quiet.A. HearB. SoundC. SingD. Listen( ) 29. –The room is so dirty. _______ we clean it -- Of course.A. WillB. WouldC. DoD. Shall( ) 30. We must do something to stop people from _______.A. to throw litter aboutB. to throw litter intoC. throwing litter aboutD. throwing litter into时态和语态专项复习( ) 1. Don’t make so much noise. We _______ to the music.A. listenedB. listenC. are listeningD. have listened( ) 2. I must return the camera to Li Lei. I _______ it for two weeks.A. keepB. borrowedC. have keptD. have lent( ) 3. –When will you tell him the good news --I will tell him about it as soon as he _______ back.A. comesB. cameC. will comeD. is coming( ) 4. –Dad, please open the door, it _______. –OK, dear. I’m coming.A. locksB. lockedC. is lockedD. was locked( ) 5. –Did you go to Jim’s birthday party --No, I _______.A. am not invitedB. wasn’t invitedC. haven’t invitedD. didn’t invite( ) 6. A talk on Chinese history _______ in the school hall next week.A. be givenB. has been givenC. will be givenD. will give( ) 7. You may go fishing if your work _______.A. is doneB. will be doneC. has doneD. have done( ) 8. –What do you think of the football match yesterday--Well. It’s surprising. The strongest team of our school _______.A. was beatenB. wonC. scoredD. was failed( ) 9. –Would your younger brother go for a picnic this Sunday --If I don’t go, _______.A. so does heB. so he willC. neither will heD. neither does he( ) 10. The trees must _______ three times a week.A. waterB. is wateringC. be wateredD. waters( ) 11. –Did you see Tom at the party -- No, he _______ by the time I got there.A. leftB. was leavingC. had leftD. has left( ) 12. –Why not go to see the dolphin show with me --Because I ______ it.A. sawB. will seeC. seeD. have seen( ) 13. –Do you like watching cooking programs on TV --No, I don’t, but my twin brother ____.A. doesB. doC. isD. are( ) 14. Catherin _______ the letter before her mother came into her bedroom.A. has writtenB. was writtenC. had writtenD. is writing( ) 15. The old man is quite weak after the accident, so he _______.A. must take care ofB. must be take care ofC. must look afterD. must be looked after( ) 16. The ticket is on the floor. Would you please _______ for meA. pick it upB. pick up itC. pick up themD. pick them up( ) 17. He _______ living in the country to the city.A. likesB. prefersC. enjoysD. loves( ) 18. How long have you _______ the bookA. boughtB. lentC. hadD. borrowed( ) 19. –Do you know him well --Sure. We _______ friend since ten years ago.A. wereB. have beenC. have becomeD. have made( ) 20. _______ me carefully, boys and girls. Can you _______ meA. Listen to; hearB. Hear; listen toC. Hear; hearD. Listen to; hear from( ) 21. –These farmers have been to the United States. –Really When ______ thereA. will they goB. did they goC. do they goD. have they gone( ) 22. I’m sorry I haven’t got any money. I _______ my handbag at home.A. have missedB. have leftC. have putD. have forgotten( ) 23. –Where is Miss Gao. Lily --She _______ to the teacher s’.A. has beenB. has goneC. wentD. would go( ) 24. When her father came back home, Joan _______ with her friend.A. talkedB. talksC. is talkingD. was talking( ) 25. –What’s that thing with three legs--It’s a cup. It ______ for drinking in the old days.A. usesB. usedC. is usedD. was used( ) 26. His uncle _______ in three days.A. returnsB. has returnedC. returnedD. will return( ) 27. –Hi, Lin Tao. I didn’t see you at the party. --Oh, I _______ ready for the maths exam.A. am gettingB. was gettingC. gotD. have got( ) 28. –Excuse me. What did you say you would like to do, Miss White--I said I’d better go back to the office. I _______ something this afternoon.A. would meetB. meetC. am going to meetD. was meeting( ) 29. What _______ the forest in our country in the last ten years.A. has happened doB. is happened toC. has happened atD. is happening( ) 30. –What did Mr Jones do before he moved here--He _______ a city bus for over twenty-five years.A. is drivingB. droveC. has drivenD. drives( ) 31. –When _______ you _______ your homework--I had finished it before he _______ back.A. have; finished; cameB. have; finished; was comingC. did; finish; cameD. did; finish; was coming( ) 32. Look! The boys _______ happily in the river.A. swimB. swamC. will swimD. are swimming( ) 33. Every spring, many trees _______ along the river.A. were plantedB. is plantedC. will be plantedD. are planted( ) 34. The letter _______ in French. I can’t read it.A. is writingB. is writtenC. wroteD. writes( ) 35. If Mary _______ next Sunday, we will go boating together.A. will comeB. comesC. shall comeD. should come( ) 36. We expected that the English teacher _______ some advice on how to write an English letter.A. will giveB. gaveC. is going to giveD. would give( ) 37. Five years ago nobody knew him, although he _______ more than 100 songs.A. already wroteB. have already writtenC. had already writtenD. was already writing( ) 38. So far I _______ any success. However, I’ll keep trying.A. don’t haveB. didn’t haveC. haven’t hadD. won’t have( ) 39. It was the third time that I _______ in at his office.A. have droppedB. had droppedC. droppedD. was dropping( ) 40. I often see Tom _______ homework while I am watching TV every evening.A. doB. doingC. didD. to do( ) 41. The flowers want _______. Look, the soil is so dry.A. wateringB. being wateredC. to waterD. waters( ) 42. –Be careful! You might fall into the water.--Thank you. I ______ I _______ so close to the pool.A. didn’t know; am standingB. don’t know; am standingC. didn’t know; was standingD. didn’t know; would stand( ) 43. –Excuse me. Where is the sick boy sent here a moment ago--He ______ by the doctor.A. has been examinedB. will be examinedC. is examinedD. is being examined( ) 44.—Have you got the airplane tickets--No. when I _______ to the office, all the tickets to Beijing ______ out.A. get; have been soldB. got; had been soldC. got; had soldD. got; were being sold( ) 45. –Your name again I _______ quite catch it. –Bartholomew Liveli.A. didn’tB. don’tC. couldn’tD. can’t( ) 46. – Whom are you waiting for--Gary’s parents. But neither of them _______ yet.A. arrivedB. has arrivedC. are arrivingD. is arriving( ) 47. He _______ in bed all day long because he had a headache.A. lieB. layC. laidD. lied( ) 48. Would you _______ your voice a little so that everyone can hear youA. riseB. putC. liftD. raise( ) 49. More and more people began to _______ that good health means good wealth.A. learnB. understandC. considerD. realize1---5 D C A B B; 6---10 C A A B C; 11---15 B C C C B; 16---20 C A C D D1—5 CADCB 6—10 ADCDC 11—15 BDDCD 16—20 DAACB21—25 BACAD 26—30 CCDBD 31—35 CDCDC 36—42 BBDCDBA1—5 BCCBB 6—10 CAABB 11—15 ADDCC 16—20 BCAAA 21—25 ACABB 26—30 DCDD1—5 CCACB 6—10 CAACC 11—15 CDACD 16—20 ABCBA 21—25 BBBDD26—30 DBCAB 31—36 CDDBB 36—40 DCCBB 41—45 ACDBA 46—49 BBDD。

现在完成时中瞬间动词变延续性动词总结一、现在完成时中瞬间动词变延续性动词的概述在我们的日常生活和工作中，我们经常会遇到一些需要表达动作持续时间的情况。

这时候，我们就需要使用现在完成时来表示这个动作从过去开始一直持续到现在。

而在这个过程中，有些瞬间动词会变成延续性动词，这样可以让我们的表达更加准确和自然。

本文将对现在完成时中瞬间动词变延续性动词进行详细的理论分析和探讨。

二、现在完成时中瞬间动词变延续性动词的分类在现在完成时中，瞬间动词变延续性动词主要可以分为以下几类：1. 以“-ing”结尾的瞬间动词这类动词在变成延续性动词时，通常会在词尾加上“-e”或“-d”，然后再加上“-ing”。

例如：stop -> stopped, start -> started, eat -> eaten等。

2. 以“-e”结尾的瞬间动词这类动词在变成延续性动词时，通常会在词尾加上“-ed”，然后再加上“-ing”。

例如：come -> came, go -> gone, leave -> left等。

3. 以辅音字母+“y”结尾的瞬间动词这类动词在变成延续性动词时，通常会在词尾加上“-ied”，然后再加上“-ing”。

例如：try -> tried, stop -> stopped, care -> cared等。

4. 以元音字母+“y”结尾的瞬间动词这类动词在变成延续性动词时，通常会在词尾加上“-ied”，然后再加上“-ing”。

例如：carry -> carried, carry -> carrying, say -> said等。

三、现在完成时中瞬间动词变延续性动词的使用技巧虽然现在完成时中瞬间动词变延续性动词有很多种类，但是我们在实际使用过程中还是需要注意一些技巧：1. 要注意区分瞬间动词和延续性动词的用法。

有时候，两个词看起来很相似，但实际上它们的用法是不同的。

现在完成时中非延续性动词（瞬间动词）与延续性动词的转换leave → be away离开;borrow → keep借;buy → have买;begin/start → be on开始/上演;die → be dead;finish ／end ／stop→ be over结束/完成join → be in+组织机构或be a member of+组织机构；open/close sth → keep sth open/closed；fall ill → be ill；get up → be up；catch ／get a cold → have a cold感冒；come here → be here；go there → be there；become → be成为；come back → be back；fall asleep → be asleep睡着；get to/ arrive/reach → be (in)；leave → be away from；get to know → know；go (get) out → be out；put on → wear；catch a cold →have a cold; go to school → be in school ／be a student上学; go abroad → be abroad去国外;marry → be married（to）结婚; wake up → be awake 醒;make friends with → be friends with成为/交朋友;lose → be lost ／be missing ／be gone 丢失; lose one's job ／work → be out of work ／a job请看例句1.The old man died 4 years ago.→ The old man has been dead for 4 years.→ It is 4 years since the old man died.→ Four years has passed since the old man died.请看例句2.He joined the Party 2 years ago.→ He has been in the Party for 2 years.→He has been a Party member for 2 years.请看例句3. He joined the army 5 years ago.→ He has been in the army for 5 years.→ He has served in the army for 5 years.→He has been a soldier for 5 years.请看例句4.I bought the book 5 days ago.→ I have had the book for 5 days.。