2022年初中英语现在完成时详解.docx

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1、精选学习资料 - - - - - - - - - 精品资料 欢迎下载现在完成时 一、现在完成时构成构成：现在完成时由助动词have + 过去分词构成,助动词have 有人称和数的变化；第三人称单数用 has,其余用 have. 现在完成时的否定式直接在助动词后面加上not、疑问式是把助动词提到主语之前；以study 为例,其否定式、疑问式和简洁回答形式如下：否定式t studied .疑问式t.t.I have not havenHave I studied .You have not havent studied .Have you studied .He has not hasnt stu

2、died .Has he studied .否定疑问式t I studied .简洁回答（确定/否定）Have I not HavenYes, you have. No, you havenHave you not Havent you studied .Yes, I have. No, I havenHas he not Hasnt he studied .Yes, he has. No, he hasnt.二、现在完成时用法1、现在完成时通常表示在说话之前已经完成的动作或存在的状态；说话人强调的是该动作 或状态对现在的结果或影响；My daughter has just gone out.

3、 我女儿刚出去；I m sure weve met before. 我确定我们以前见过面；She has arrived. 她到了；2、表示连续到现在的动作或状态,往往和包括现在在内的表示一段时间的状语连用,如 recently, already, just, lately, for , since yet 等；如：这些日子我没有收到她的信；I havent heard from her these days. We haven t seen you recently. 最近我们没有见到你；They have been away for two years. 他们离开已经两年了；She has

4、 been with us since Monday. for+ 时段 以来）since+过去一个时间点（译为：自从 since+时段 +ago since+从句（过去时）It is+时段 +since+从句（过去时）Mary has been ill for three days. 名师归纳总结 - - - - - - -第 1 页,共 5 页精选学习资料 - - - - - - - - - 精品资料 欢迎下载I have lived here since 1998. 留意：since 和 for 的区分since 后接时间点,如 1993,last term, yesterday, the

5、 time I got there for 后接一段时间,表示“长达多久 ”,如 ten years, a while, two days 等；3、表示短暂意义的动词如 arrive, leave, borrow, buy, begin, start, die 等,在完成时当中不能和表示一段时间的状语连用,由于它们表示的动作不行能连续；因此,不能说：He has come here for 2 weeks. The old man has died for 4 months. They have left only for 5 minutes. 4、has gone to,has been t

6、o, has been in 的区分Have/Has goneto : 去了 现在不在说话现场,可能在路上和已经到 Where is your father.He has gone to Shanghai. Have/Has been to :去过（已不在去过的地方）My father has been to Shanghai. Have/has been in：呆了多久（仍在所呆的地方）My father has been in Shanghai for two months. /since two months ago. 5、现在完成时不能和表示过去的时间状语连用,如yesterday,

7、last year, in 1976, two days ago, just now, when I came in ,但可以和 already, yet, sometimes, always, often, before, lately, recently, once, twice, ever, never 等连用；不能与 when 连用；现在完成时往往同表示不确定的过去时间状语连用例如：She has already come. 她已经来了；I havent read it yet. 我仍没读过这个；I have met him before. 我从前曾见过他；Ma Hong has al

8、ways been a good student. 马红始终是个好同学；I have often seen him in the street. 我常常在街上观察他；They have never been to Yan 他们从未去过延安；I havent seen him lately. 我近来没看到他；三、现在完成时的标志1、现在完成时的含义之一是过去完成的动作对现在仍有影响 种含义 : ,用以下四大标志词可以表达这名师归纳总结 - - - - - - -第 2 页,共 5 页精选学习资料 - - - - - - - - - 精品资料 欢迎下载* 以 already, just 和 yet

9、 为标志He has already got her help. 他已得到她的帮忙；He has just seen the film. 他刚刚看过这场电影；He hasnt come back yet. 他仍没有回来；* 以 ever 和 never 为标志This is the best film I have ever seen.这是我曾经看过的最好的一部电影；He has never been to Beijing. 他从没有到过北京；* 以动作发生的次数为标志He says he has been to the USA three times. 他说他已经去过美国三次了；* 以 so

10、 far（到目前为止）为标 +before He has got to Beijing so far. 到目前为止他已到了北京；She has passed the exam so far. 到目前为止她已经通过了考试；2.过去已经开头的动作始终连续到现在, 甚至有可能连续连续下去,我们可以从动作“ 连续 ”的特性和 “ 时间 ” 点段的区分入手,进一步学习现在完成时；for+ 时段 since+过去一个时间点（过去从句）为标志四、 瞬时动词buy, die, join, come ,go ,leave, join 不能直接与for since 连用；要转变动词buy-have borrow

11、-keep come/arrive/reach/get to-be in go out-be out leave -be away begin-be on finish-be over open-be open close -be closed die-be dead 1、have 代替 buy My brother has had 不能用 has bought this bike for almost four years. 2、用 keep 或 have 代替 borrow I have kept不能用 have borrowed the book for quite a few days

12、. 3、用 be 替代 become How long has your sister been a teacher. 4、用 have a cold 代替 catch a cold Tom has had a cold since the day before yesterday. 5、用 wear 代替 put on 名师归纳总结 - - - - - - -第 3 页,共 5 页精选学习资料 - - - - - - - - - 精品资料 欢迎下载6、用 “be形容词 ”代终止性动词bemarried 代 marry beill 代 fall get ill bedead代 die be a

13、sleep代 fall get asleep beawake 代 wake/wake up begone 代 lose,die,sell,leave beopen 代 open be closed 代 close/shut bemissinggone,lost 代 lose 7、用 “be副词 ”代终止性动词beon 代 start begin “beup”代 get up “bebackto 代 return to, come back to, go back to “be here there 代 comearrive, reach, get here 或 go arrive, reach

14、, get there 8、用 “be介词短语 ”代终止性动词1. “be in/at + 地点 ”代替 go to /come to 2.用 be in the army 代替 join the army 3. “be in/at + 地点 ”代替 move to 常用瞬时动词变连续性动词表：1. have arrived at/in sw. got to/reached sw. come/gone/moved to sw. 名师归纳总结 have been in sw./at相应的介词第 4 页,共 5 页2. have come/gone back/returned have been

15、bac3. have come/gone out have been out4. have become have been5. have closed / opened have been close/open6. have got up have been up7. have died have been dead8. have left sw. have been away from sw.9. have fallen asleep/got to sleep ve been asleep；10. have finished/ended/completed have been over11

16、. have married have been married12. have started/begun to do sth. have done sth.13. have begun have been on14. have borrowed/bought have kept/had15. have lost haven t had16. have put on have worn- - - - - - -精选学习资料 - - - - - - - - - 名师归纳总结 精品资料欢迎下载member of/ have have been a 17. have caught /get a cold have had a cold18. have got to know have known19. have/has gone to have been in20. have joined/have taken part in the league/the Party/the armybeen in/have been the Partys member/the league member/the soldier第 5 页,共 5 页- - - - - - -