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1、现在完成时讲解一、 基本结构：助动词have/has+过去分词(done)二、句型结构肯定句：主语+have/has+过去分词+其他.否定句：主语+have/has +not（缩写成 havent/hasnt）+过去分词+其他.一般疑问句：Have/Has+主语+过去分词+其他.简略答语: Yes, 主语 + have/has.(肯定) No, 主语 + havent/hasnt.(否定)三、用法（1）现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果。如： I have spent all of my money (so far). (含义是:现在我没有钱花了.) Guo ziju
2、n has (just/already) come. (含义：郭子君现在在这儿)My father has gone to work. (含义是:我爸爸现在不在这儿) （2）现在完成时可以用来表示发生在过去某一时刻的,持续到现在的动作（用行为动词表示）或状态（be动词表示），常与for（+时间段）,since（+时间点或过去时的句子）连用. for+时段 since+过去一个时间点（译为：自从以来） since+时段+ago since+从句（过去时） It is+时段+since+从句（过去时） 如： Mary has been ill for three days. I have live
3、d here since 1998.四、has gone (to),has been (to), has been (in) 的区别 （1）Have/Has gone(to) 去了(现在不在说话现场)Where is your father？ He has gone to Shanghai.（2）Have/Has been (to) 去过（已不在去过的地方）My father has been to Shanghai.（3）Have/has been in：呆了多久（还在所呆的地方）My father has been in Shanghai for two months. /since tw
4、o months ago.五、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,用以下四大标志词可以表达这种含义:（1）以already, just和yet为标志。如： He has already got her help.他已得到她的帮助。 He has just seen the film.他刚刚看过这场电影。 He hasnt come back yet.他还没有回来。（2）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 Beijin
5、g.他从没有到过北京。（3）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。（4）以so far（到目前为止）为标志 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.过去已经开始的动作一直延续到现在, 甚至有可能继续延续下去,我们可以从动作“延续”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）为标志注意： 1)现在完
6、成时不能单独与过去的时间状语连用, 如yesterday, last week, three years ago 等; 2)不能与when连用 3）.现在完成时往往同表示不确定的过去时间状语连用六、过去分词1 、规则动词：规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则：(1)、一般动词，在词尾直接加“ ed ”。 work-worked-worked ,visit-visited-visited(2)、以“ e ”结尾的动词，只在词尾加“ d ”。 live-lived-lived ,(3)、以“辅音字母 + y ”结尾的动词，将 y 变为 i ，再加“ ed ”。
7、 study-studied-studied ,cry-cried-cried(4)、重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ ed ”。 stop-stopped-stopped , drop-dropped-dropped2 、不规则动词（需要同学们平时积累和记忆）七、瞬间动词（buy, die, join, come，go ,leave, join ）不能直接与for ，since 连用。要将其改变为延续性动词，如：1、buy-have； borrow -keep；come/arrive/reach/get to-be in；go out-be out；leave
8、-be awaybegin-be on；finish-be over ；open-be open； close -be closed； die-be dead2、常用瞬间动词变延续性动词表：（1）have arrived at/in sw. got to/reached sw. come/gone/moved to sw. have been in sw./at相应的介词 （2）have come/gone back/returned have been back （3）have come/gone out have been out（4）have become have been （5）ha
9、ve closed / opened have been closed/open（6）have got up have been up （7）have died have been dead；（8）have left sw. have been away from sw. （9）have fallen asleep/got to sleep have been asleep；（10）have finished/ended/completed have been over （11）have married have been married；（12）have started/begun to d
10、o sth. have done sth. （13）have begun have been on（14）have borrowed/bought have kept/had （15）have lost havent had（16）have put on have worn （17）have caught /get a cold have had a cold；（18）have got to know have known （19）have/has gone to have been in（20）have joined/have taken part in the league/the Par
11、ty/the armyhave been a member of/ have been in/have been the Partys member/the league member/the soldier1.ever表“曾，曾经”，疑问句或肯定句。Haveyoueverbeenthere?你曾到过那里吗？ HaveyoueverbeentoLondon?你曾到过伦敦吗?ItisoneoftheugliestfacesIhaveeverseen.那是我看见过的最丑陋的人面像之一。2.already表示“已经”的意思，主要用在肯定的陈述句中，通常与动词的完成时或进行时连用：Ourvisitor
12、shavecomealready.来宾已到。 already也可用在疑问句中，常暗示说话人的“惊奇”、“意外”，如：Haveyoualreadyhadbreakfast?难道你吃过早饭了？3.just表“刚才，方才”，一般用于肯定句中：Theyvejustarrived.他们刚刚到达。 Ivejustarrivedbytrain,shesaid. 我刚乘火车到这里,她说道。4.yet既可作于否定句、疑问句中，也可用于肯定句中，但表达的意思不尽相同。（1）用于否定句，表“还，尚”Attwooclocktheyhadnotyetdecidedwhethertogoornot.两点钟时他们尚未决定是
13、去还是不去。（2）用于疑问句，表“已经” Iseverythingreadyyet?一切都准备好吗？（3）用于肯定句，表“仍然，还得” Heisyetachild.他还是个孩子。 现在完成时练习(一)A)选用have, has填空:1.I _ told him the news.2.She _ come back from school.3.You _ won the game.B)按要求改写下列各句:4.They have bought a computer.(改成否定句)_5.He has lost his book. (先改成一般疑问句,再作肯定与否定回答)_C) 单项选择6. -Whe
14、re have you _, Kate?-Ive _ to the bank. A. gone, goneB. been, beenC. gone, beenD. been, gone7. Her grandfather _ for two years.A. diedB. has diedC. has been deadD. has been died8. Its six weeks _ I met you last.A. whenB. sinceC. beforeD. for9. Tom and Jack have arrived at West Hill Farm already.A. h
15、ave gotB. have gone toC. have been toD. have reached现在完成时练习（二）一、 单项选择。1、Both his parents look sad . Maybe they _whats happened to him .（呼和浩特）. knew . have known . must know .will know2、He has _ been to Shanghai , has he ?. already .never .ever . Still3、Have you met Mr Li _？. just . ago .before . a m
16、oment ago4、The famous writer _ one new book in the past two years . is writing .was writing .wrote .has written5、Our country _ a lot so far .Yes . I hope it will be even _ . has changed ; well . changed ; good . has changed ; better . changed ; better6、Zhao Lan _already _in this school for two years
17、 . was ; studying . will ; study . has ; studied . are ; studying7、We _ Xiao Li since she was a little girl . know . had known . have known . knew8、Harry Potter is a very nice film .I_ it twice . will see . have seen . saw .see9、These farmers have been to the United States . Really ? When _ there ?.
18、 will they go . did they go . do they go . have they gone10、_ you _ your homework yet ? Yes . I _ it a moment ago . Did ; do ; finished . Have ; done ; finished. Have ; done ; have finished . will ; do ; finish11、 His father _ the Party since 1978 . joined . has joined . was in . has been in12、Do yo
19、u know him well ? Sure .We _ friends since ten years ago . were . have been . have become . have made13、How long have you _ here ?About two months . been . gone . come . arrived14、Hurry up! The play _ for ten minutes . has begun . had begun . has been on . began15、 It _ ten years since he left the a
20、rmy . is . has . will . was16、 Miss Green isnt in the office . she_ to the library .has gone . went .will go . has been17、My parents _ Shandong for ten years . have been in . have been to . have gone to . have been18、The students have cleaned the classroom, ? A. so they B. dont they C. have they D.
21、havent they19、 has Mr White been a member of Greener China since he to China? A. How soon, comes B. How often, got C. How long, came D. How far, arrived20、His uncle_ for more than 9 years. A. has come here B. has started to work C. has lived there D. has left the university二、 句型转换。1、He has never sur
22、fed, ?（改成反意疑问句）2、They have been here since 2000. (对划线部分提问) _ they been here?3、The old man _ last year. Hefor a year. (die) （动词填空）4、This factory opened twenty years ago.(同义句转换) This factory _ for twenty years.5、Miss Gao left an hour ago. (同义句转换) Miss Gao _ _ _ _ an hour ago.6、Her mother has been a Pa
23、rty member for three years .（同义句） Her mother _ the Party three years _ .7、The Green Family moved to France two years ago. (同义句转换) _ two years _ the Green family moved to France.8、The bus has arrived here. It arrived ten minutes ago. (把两个句子合并成一个句子) _三、 汉译英。1、 吉姆已做完作业，他现在有空了。 2、 他昨天收到一封信。 3、 我父亲以前到过长城
24、。 4、 她还没有看过那部新电影。 5、 她去过上海。 6、 他这些天上哪儿去了？ 参考答案：一、单项选择。1、现在完成时主要强调过去发生的动作对现在造成的影响，或过去发生的动作还未结束，一直持续到现在或将来，重点在于对现在的影响。这种考查难度较大，往往无时间状语，需要从上下文分析、推理才行。故上两侧根据上下文分析、推理，正确答案是。2、现在完成时常与already（已经），just（刚刚，正好），ever（曾经），never（从来，也不；从不），before（以前），yet（仍然）等连用。故2应选B。3、C4、现在完成时常与recently（近来），so far（到目前为止），in the
25、past/“last + 一段时间”等时间状语连用。因为上述短语表示的是从现在起往前推算的一段时间，句中的动作是从过去某一时间或时刻开始持续到现在的。故4应选D。5、C6、现在完成时时常与“for +时间段或since +过去时间点”连用（含从句，从句过去时）。故6应选C。7、C8、现在完成时还与once（一次），twice（两次），three times（三次），several times（几次）等表示重复次数的词语连用。故8应选B。9、现在完成时与一般过去时容易混淆，就是因为它们所表示的动作都发生在过去，但二者又有区别：一般过去时表示过去某个时间发生的事、存在的状态或经常发生的动作，说话的
26、侧重点在于陈述一件过去的事情，与现在没有关系；现在完成时表示与现在有关系的发生在过去的动作，它不与表示过去的时间状语（如yesterday , last week , a moment ago等）连用。故9的正确答案为B。10、B11、现在完成时中，非延续性动词不能与for和since引导的表示一段时间的状语连用，通常是用相应的延续性动词来代替。故11的正确答案依次为：D。12、B 13、A 14、C 15、A。16、“have/has gone to + 地点”表示“某人去了某地（还未回来）”，指主语所指的人不在这儿。“have/has been in + 地点”表示“在某地呆了多长时间”，
27、常与表示时间的状语连用。“have/has been to +地点”表示“曾经去过某地（但现在已不在那儿）。”故16的正确答案为A。17、A 18、D 19、C 20、C二、句型转换。1、has he? 2、How long have 3、died, has been dead4、has been open 5、has been away since 6、joined；ago7、It is, since 8、The bus has been here for ten minutes.三、汉译英。1、Jim has finished doing his homework already. He is free now.2、He received a letter yesterday.3、My father has been to the Great Wall before.4、She hasnt seen the new film yet.5、She has been to Shanghai.6、Where has he been these days？