现在完成时练习现在完成时可以和带有since或for等表示“一段时间”的状语连用,表示动作或状态从某一时刻开始，一直持续到现在。
如：I haven't seen him for two years. 但是，像come, arrive, buy等终止性动词不能与表示“一段时间”的状语连用。
要用，必须改为“be（在）”等延续性动词来表述。
现归纳总结一下由非延续性动词到延续性动词的转换：arrive→be here begin (start)→be ondie →be dead come back→be backleave →be away fall ill(sick,asleep)→be ill(sick,asleep)get up→be up go out →be outfinish →be over put on →wear 或be onopen →be open join →be in或be a member of…close →be closed go to school→be a studentborrow →keep buy →havecatch (a cold) →have(a cold) get to know →knowbegin to study→study come to work→work等如：He has been a soldier for three years.他参军三年了。
His father has been dead for two years.他父亲去世二年了。
The film has been on for ten minutes.电影已开始十分钟了。
We have studied English for three years. 我们（开始）学英语已三年了。
6.几点注意事(1) have been(to)与have gone( to)的区别：have been(to)表示“去过某地（现在已经回来了）”，可用于各人称；have gone(to)表示“去某地了（说话时某人不在当地）”，常用于第三人称，前者可与once ,never,several times 等连用，后者则不能。
have/has been in待在某地如：They have been to Beijing twice.他们去过北京两次。
He has gone to Beijing . 他去北京了(2) 如单纯表示一段时间，或强调一段时间，虽有since一词，也不必用完成时。
如：It is two years since his father died. =His father has been dead for two years.他父亲去世已有三年了。
(3) 终止性动词现在完成时的否定式，已变成一种可以延续的状态，因此可以和表示一段时间的状语连用。
如：I haven't left here since 1997.自从1997年以来，我一直没有离开过这儿。
现在完成时练习[Exercises7]A）用have(has) been 或have(has) gone 填空。
A: Where ____________ Li Fei ___________?B: He ____________ to Hainan Island.A: How long ___________ he ___________ there?B: He _____________ there for three days.A: When will he come back , do you know?B: I’m afraid he won’t come back recently.A: Could you tell me the way to Hainan Island?B: Sorry, I _________ never ___________ there.A: How many times ___________ Li Fei __________ to that place?B: He _____________ there only once.B）用have/has been to/in, have gone to的各种形式填空。
Where is Jack? He __________ his country.John _______ England since he came back.How long _____ have _____ this village?The Smiths ______ Beijing for years._____ you ever ____ America? -- Yes, I _____ there many times.I _____ this school since three years ago.C）选择填空1.Jim's been to the Great wall before ,__________he?(A)isn't (B)wasn't (C)hasn't (D)doesn't2. She's never been to England, she?(A)has (B)hasn't (C)isn't (D)is2.___________has Hanmei been in the library.(A)How long (B)How soon (C)How far (D)How often3.How long ___he______ the library book .Ahas, borrow Bhas ,kept C. has, bought D. did, buy4.Mr Green isn't in the office , He __________to the library(A)has gone (B)went (C)has been (D)will go5.Mr smith _______to Tokyo and he will be back in a week(A)has been (B)has visited (C)has sent (D)has gone6.They_________China for two yearsA. have been toB.have been inC. have gone toD. have come to [Exercises10]A）按要求把短暂性转换为延续性动词①arrive at/in sw. get to/reach sw. come/go/move to sw.→ be in sw./at school/at home/on the farm/be here/be thereHe got to Beijing five minutes ago.He Beijing for .I moved to the USA last year.I ________ ________ __________ the USA since __________ __________.I went home yesterday.I _______ ________ _________ home for _________ __________.They came here last week.They _________ _________ here since _________ __________.②come/go back, return → be back come/go out → be outHe came out two years ago.He _________ __________ _________ for __________ __________. We return to Fuzhou yesterday.We ________ ________ _________ to Fuzhou since __________.③become → beI became a teacher in 2000.I ________ __________ a teacher for _________ _________.The river became dirty last year.The river _________ _________ dirty for _________ __________.④close → be closed open → be openThe shop closed two hours ago.The shop ________ _________ _________ for _________ _________. The door opened at six in the morning.The door ________ ________ ________ for six hours.⑤get up → be up die → be deadleave sw. → be away from sw.fall asleep/get tot sleep → be asleepfinish/end → be over marry → be marriedI got up two hours ago.I ________ ________ ________ since ________ ________.He left Fuzhou just now.He _______ ________ ________ _________ Fuzhou for five minutes.My grandpa died in 2002.My grandpa _______ _______ ________for _______ ________.The meeting finished at six.The meeting ________ ______ ______ for six hours.I got to sleep two hours ago.I ________ _________ _________ since _________ __________. They married in 1990.They ________ _________ __________since _________.⑥start/begin to do sth. → do sth.begin → be onI began to teach at this school in 1995.I ____ ____ at this school since ____.The film began two minutes ago.The film ____ ____ ____ for ____ ____.⑦borrow → keep lose → not have buy → haveput on → wear catch/get a cold → have a cold get to know → know They borrowed it last week.They _________ _________ it since __________ __________.I bought a pen two hours ago.I _________ _________ a pen for ________ __________.I got to know him last year.I _________ __________ him since __________ __________.I put on my glasses three years ago.I __________ __________ my glasses for _________ _________.⑧have/has gone to → have been inHe has gone to Beijing.He ____ ____ _____ Beijing for two days.⑨join the league/the Party/the army→ be a league/a Party member/a soldier→ be a member of the league/the Party→ be in the league/the Party/the armyHe joined the league in 2002.He ________ _________ a _________ _________ for two years.He ________ __________ a __________ ___________ the __________ for two years.He ____________ ___________ ___________ the league for two years.My brother joined the army two years ago.My brother __________ __________ a ___________ for ___________ ___________.My brother ___________ ___________ in ____________ ___________ for two years.C）选择填空( )2.Herfather _____in1990 and her husband ____for more than five yearsA)died ,dead (B)has died, dead(C)died ,has been dead (D)has died, has died3.I have_____this nice watch for twoyears.(A)had (B)bought (C)borrowed (D)lend( )4.He _____his home for ten years(A)has left B.left from C.has been away from D.was away from ( )5.He _____a league member for three years(A)is (B)has been (C)has become (D)have become( )6.Lihua's brother has _______for two yearsA.joined the army (B)been an armyC. become a soldierD. been in the army( )7.He hasn't _____Quanzhou ever since he left school(A)left (B)been away (C)been (D)away[Exercises 11] 选择填空( )1. ——Have you finished your homework——Yes, I _______it last night(A)finish (B)finished (C)have finished (D)will finish ( )2.—— ________you ever _______to Nanjing——Yes, I ______there last year.(A)Have…gone, have gone(B)Have…been , went(C)Did…go, went (D)Did…go, has , been( ) 3.——When _______you ________Lucy in New York?——I _________here for two years(A)did…meet, haven't seen (B)did…meet, haven't seen(C)did…meet, don't see (D)would…meet, hadn't seen ( )4.when_ you to Beijing?( )3.He ______finished his homework. yet(A)doesn’t(B)haven’t(C) hasn’t(D) doesn’t have ( )1.——Have you ________traveled on the ——Yes, I have.(A)never (B)ever (C)just (D)yet( )2.——Have you finished your homework——Not__________ .(A)ever (B)already (C)yet (D)just( )3. We haven't finished our homework .(A)already (B)ever (C)yet (D)never( )4.——Have you__________ learned English?——Yes, I've ________learned a lot.(A)never, ever (B)ever, never (C)ever, already (D)already. ever ( )5.——Have you finished your homework ________?——Yes, I've _____done that(A)yet, already (B)already, yet (C)ever, never (D)still, just ( )6.John's father _______borrowed some pictures(A)have already (B)has just (C)have ever (D)has yet[Exercises4] A）用since和for填空1) ______ two years 2) _______ two years ago 3) _______ last month 4) ______ 1999 5) _______ yesterday 6) _______ 4 o’clock7) ______ 4 hours 8) _______ an hour ago 9) _______ we were children 10) _____ lunch time 11) ______ she left hereB）用since和for填空1. He has lived in Nanjing ________ the year before last.2. I’ve known him __________ we were children.3. Our teacher has studied Japanese _________ three years.4. She has been away from the city ___________ about ten years.5. It’s about ten years __________ she left the city.( )1.I've been like this ever since _________(A)last week (B) for a week (C) a week before (D)the last week ( )2.My mother has worked in this factory _____2 years.A)about (B)for (C)in (D)since( )3. I haven't heard from him ______last week.(A)since (B) for (C)ago (D)before( )4.His father joined the party_________(A)for three years (B)since three years ago(C)three years ago (D)in two years' time51. – Where is Mr. Liu? ----- He _______the library.A. has been toB. has gone toC. has been in2. The students have cleaned the classroom , ________?A. so theyB. don’t theyC. have theyD. haven’t they3. I like Hainan. I ________there three times.A. wentB. goC. have beenD. have gone4.We came to Nanjing three years ago, so we ________ here for three years.A. have been toB. have been inC. have beenD. have gone5.- How long ______you_______ your dictionary? - About two months.A. did; buyB. have; getC. have; hadD. have; bought6 . He tells me he________ China for over five years.A. has beenB. has been inC. has been toD. has gone to7.________has Mr White been a member of Greener China since he _______ to China?A. How soon , comesB. How often, gotC. How long , cameD. How far, arrived8. His uncle________ for more than 9 years.A. has come hereB. has started to workC. has lived thereD. has left the university9. He has never surfed, __________(改成反意疑问句）?10. They have been here since 2000 . (对划线部分提问)_ _________ have they been here?11. The old man _________last year. He________ for a year.(die)12.This factory opened twenty years ago.(改写句子，句意不变)This factory _________ for twenty years.。