现在完成时讲解

1、选校网高考频道专业大全历年分数线上万张大学图片大学视频院校库现在完成时讲解一、基本结构：主语 +have/has+过去分词（done） 肯定句：主语+have/has+过去分词+其他 否定句：主语+have/has+not+过去分词+其他 一般疑问句：Have/Has+主语+过去分词+其他 特殊疑问句：特殊疑问词+般疑问句（have/has+主语+过去分词+其他）二、用法，也就是说，动作或状态发生灯现在不亮了。）持续性动词。常与for1）现在完成时的”完成用法”现在完成时用来表示现在之前已发生过或完成的动作或状态，但其结果却和现在有联系在过去但它的影响现在还存在.He has turned o

2、ff the light.他已把灯关了。（动作结束于过去，但说明的是现在的情况-I have spent all of my money.（含义是：现在我没有钱花了 .）Jane has laid the table.（含义是：现在桌子已经摆好了.）2）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（+时间段），since （+时间点）连用.Mary has bee n ill for three days.Mary has bee n ill since three days ago.注意:1.现在完成时 不能单独与准确时间连用，（

3、如表示过去的时间状语）女口 yesterday（m orning、after noon） ,last（m orning、after noon）等， 除非与 for, since 连用.2. 现在完成时往往同表示不确定的过去时间状语连用，如 already （肯定）,yet （否定，疑问）,just, before, recently, still, latel y 等:He has already obta ined a scholarship.I have n't see n much of him recen tly （lately）.We have see n that film

4、 before.Have they found the miss ing child yet ?3. 现在完成时常常与表示频度的时间状语连用，如 ever, never, twice, several times 等:Have you ever bee n to Beiji ngI have n ever heard Bunny say anything aga inst her.I have used this pen only three times. It is still good.George has met that gen tlema n several times.4. 现在完

5、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:Peter has writte n six papers so far.Up to the prese nt everyth ing has bee n successful.5. 现在完成时还可以用来表示过去的一个时间到现在这段时间内重复发生的动作We have had four texts this semester.6. have been to 和 have gone to 的区另S

6、have been to强调去过”现已不在那里，如：He has been to the USA three times.他到美国去过三次。（过去到美国”现在已不在美国”have gone to主要强调的是 去了”现在人不在说话的现场，如：-Where's your mother?-你妈妈在哪？-She has gone to the hospital.-她去医院了。has bee n in一直在某地三、现在完成时考点例析现在完成时是较难掌握、中考考查较多的时态。涉及的考点有：一、考查其构成"助动词have （has） +动词过去分词”构成现在完成时。如：1. Kate

7、9;s n ever see n Chin ese films, ? A. has n't she B. has she C. is n't she D. is she析：陈述句部分含否定词never,简略问句部分要用肯定式，又因Kate's是Kate has的缩写，故选 B。2. His uncle has already posted the photos to him.（改为否定句 ）His uncleposted the photos to him.析：already常用在肯定句中，yet常用在否定句、疑问句中，故填has n't, yet。3. -An

8、n has gone to Shan ghai. -Soher pare nts. A. has B. had C. did D. have析："so+助/系/情态动词+主语"结构中的动词形式应与前句结构中动词形式保持一致，又后句的主语为her parents是复数，故选D。二、考查其用法与标志词（一）当句中有never, ever, just, already, yet, before等时，常用现在完成时。如：1. -Mum, may I go out and play basketball? -youyour homework yet?A. Do; fin ishB.

9、Are; fin ishi ngC. Did; fin ish D. Have; fini shed2. -youany where before? -Yes, but I can't remember where IA. Did; surf; surfed B. Have; surfed; surfedC. Did; surf; have surfed D. Have; surfed; have surfed析：据yet和before可知，应用现在完成时，故1题选D, 2题选D。（二）当句中有"for +段时间”或"sinee +点时间”等时，主句常用现在完成时，

10、谓语动词必须是延续性动词，若是非延续性动词，要改为延续性动词或表状态的词（短语）。如：1. His brother has bee n to Stone Forest twicehe came to Yunnan.A. after B. before C. since D. for析：主句用的是现在完成时，而从句用的是一般过去时，故选Co选校网 专业大全历年分数线上万张大学图片大学视频院校库选校网高考频道专业大全历年分数线上万张大学图片大学视频院校库2. Tomthe CD player for two weeks.A. has lent B. has borrowed C. has boug

11、ht D. has had析：A、B、C均为非延续性动词，在肯定句中不与表"段时间”的短语连用，故选 D。3. Ia letter from him si nee he left.A. did n't receive B. have n't got C. did n't have D. have n't heard析：据 si nee 可知，应排除 A、C， "hear from sb.=receive/get/have a letter from sb."意为"收到某人的来信”，故选 B。三、考查 have/has be

12、en (to, in)/have/has gone (to)的区别。如：1. -Have you everLintong to see the Terra Cotta Warriors? -Yes, I have.A. went to B. gone to C. bee n in D. bee n to析：据句中的have，排除A，B项意为”去某地了 ”，C项意为"一直呆在某地”，D项意为"去过某地"，符合题意，故选D。2. My pare ntsShan gdo ng for ten years.A. have bee n in B. have bee n to

13、 C. have gone to D. have bee n析：本题句中有"for+段时间”结构，据此可排除C，B项意为"去过某地”，不合题意，D项缺介词，故选 A。四、考查现在完成时与其他时态的联系和区别。如：1. Sun's aunt has gone there for ten years.改成正确的句子 )析：非延续性动词与”段时间”连用时，除了把非延续性动词改成延续性动词外，还可把动词改为一般过去时或借助句型"It's + 段时间 +since+ 从句"进行句子转换。故答案为：Sun's aunt has been th

14、ere for ten years. /Sun's aunt went there tenyears ago. /It's ten years since Sun's aunt went there.2. Susan has been in this city for more than ten years.(改为同义句 )more tha n ten yearsSusa nto this city.析：据上题分析，且since引导的从句要用一般过去时，故填It is, since, came。3. I won't go to the con cert beca

15、use Imy ticket.A. lost B. don't lose C. have lost D. is coming析：因我丢了票的动作发生在过去，而且对现在造成了我不能参加音乐会的结果，符合现在完成时所表示的含意，故 选Co英语的行为动词有持续性动词和瞬间性动词之分，使用中应注意两者的区别。一、持续性动词：表示一个动作可以持续一段时间或更长时间。常见的 study, play, do, read, learn, drive, write, clean , sleep, speak, talk, wait, fly, stay, sit, stand, lie, keep 等。

16、二、瞬间性动词：表示一个动作发生在一瞬间，非常短暂。亦称终止性动词。常见的-begin, start, finish, go, come, leave, find, get up, arrive, reach, get to, enter, hear, stop, open, close, become, buy, borrow, le nd, happe n, jo in, I ose, ren ew, die, take away, put up, set out, put on, get on/off 等瞬间性动词在完成时中如要与表示持续一段时间的状语连用，通常有两种方法：(1)用意思相

17、当的持续性动词来替换He has been in the army/a soldier for three years.(他参军已有 3 年了。)不用 has joined选校网 专业大全历年分数线上万张大学图片大学视频院校库选校网高考频道专业大全历年分数线上万张大学图片大学视频院校库She has been up for quite some time.（她起床已有好久了。 ）不用 has got upHas your brother bee n away from home for a long time?（离家已有好久了吗？）不用 has left常用瞬间动词相应持续性动词关系：1、go

18、 be away2、come be here3、come back be back4、leavebe away(be not here)5、buyhave6、borrow keep7、diebe dead8、beginbe on9、finish be over10、openbe open11、closebe closed12、losebe lost13、get to know know14、turn on be on 15、get upbe up16、sit down sit/beseated17、join be in ()或 be a member 18、become be(2)用it is

19、since结构来替换瞬间动词例如：电影已经开映 5分钟了。(两种方法)(1) The film has been on for five minutes.(2) It ' s five minutes sCe the film began.他离开上海已有3天了。(两种方法)(1) He has been away from Shanghai for three days.(2) It is three days since he left Shanghai.这本书我还给图书馆已有两周了。(一种方法)It ' s two weeks since I returned the bo

20、ok to the library.他找到他妹妹已有多久了？(一种方法)How long is it since be found his sister?4、瞬间动词的否定形式可以与表示一段时间的状语连用例如：I haven ' t seen you for a long time.好久没见到你了。)现在完成时专项练习、单项选择。1、Both his parents look sad. Maybe theywhat ' happened to him .A.knewB . have knownC . must knowD. will know2、He hasbeen to Sh

21、anghai, hashe?A.alreadyB . neverC . everD . still3、Have you met Mr.Li?A.justB . agoC .beforeD.a moment ago4、The famous writerone new bookin the past two year .A.iswriti ngB .was writingC .wroteD .has written5、Our countrya lot so far .Yes. I hope it will be evenA.haschanged ;wellB .changed; goodC .ha

22、schanged ;betterD .cha nged; better6、ZhaoLanalreadyin this schoolfor two years选校网 专业大全历年分数线上万张大学图片大学视频院校库选校网高考频道专业大全历年分数线上万张大学图片大学视频院校库选校网 专业大全历年分数线上万张大学图片大学视频院校库选校网高考频道专业大全历年分数线上万张大学图片大学视频院校库A.was; study ingB . will; studyC .has; studiedD . are; studying7、WeXiaoLi since she was alittlegirl .A.knowB

23、 . had knownC . have knownD. knew8Harry Potter is ai very nice film. Iit twice .A.will seeB . have seenC. sawD .see9、These farmershave been to the UnitedStates .Really? Whenthere?A.will they goBdid they goC .do they goDhave they gone10、youyour homework yet ?Yes. Iit a moment ago.A.Did; do; finishedB

24、Have; done; finishedC .Have; done; have finishedDwill; do; finish11、His fatherthe Party since1978 .A.join edB . has joinedC . was inD. has been in12、Do you knowhim well ?Sure .Wefriends sincetenyears ago .A.wereB . have beenC. have becomeD . have made13、How long have youhere ?About two mon ths.A.bee

25、 nB . goneC . comeD . arrived14、Hurry up! Theplayfortenmi nu tes.A.has begunB .had begunC .has been onD .bega n15、Ittenyears since he left the army .A.isB . hasC . willD . was16、Miss Green isn't in the office. sheto the library.A.has goneB . wentC .will goD. has been17、My parentsShandong for ten

26、 years.A.have been inB.have been toC .have gone toD.have been18、The students have cleaned the classroom,?A.so theyB. don' theyC. have theyD. haven ' theyhas Mr White been a member of Greenerto China?19、he.A. How soon, comesC. How long, came20、His uncle B.D.HowHowChina since often, got far, arrivedA. has come herefor more than 9