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1、现在完成时是由助动词have（has）+过去分词构成其否定句在have/has后加not.一般疑问句把have/has提到主语前.动词的过去分词：规则变化（和过去时一样）不规则变化：第1页/共24页am/is-was-been are-were-been begin-began-begun break-broke-brokendo-did-done draw-drew-drawndrink-drank-drunk drive-drove-driveneat-ate-eaten fall-fell-fallenfly-flew-flown forget-forgot-forgottengive-
2、gave-given go-went-gonegrow-grew-grown hide-hid-hiddenknow-knew-known lie-lay-lainride-rode-ridden ring-rang-rungshow-showed-shown see-saw-seensing-sang-sung speak-spoke-spokentake-took-taken come-came-comerun-ran run become-became-become第2页/共24页 1表过去发生的某一动作对现在造成的影响或结果 -would you like some bread?-No
3、,thanks.I have just had my breakfast.(对现在的影响：不饿)常用副词 just（刚刚）,already,before,yet（一般 疑问：已经；否定句：还),never,ever I have never heard of that before.Have you ever ridden a horse?She has already finished the work.Have you milked the cow yet?Yes,I have done that already.Ive just finished my homework.He has n
4、ot come yet.第3页/共24页 2。表示过去已经开始，持续到现在的动作或状态，也可以表示实质可能继续下去的动作或状态。通常和 for（一段时间）,since（时间点）引导的时间状语 连用.以及 so far,in the last ten years,by now,these days,等连用。I have been here for just over two years.He has worked here since 1989.I havent seen her these days.She has learnt English for 3 years/since 3 year
5、s ago.They have lived here since 1990.Great changes have taken place in the last 10 years.第4页/共24页注意点一：现在完成时与一般过去时的用法比较现在完成时表示过去的动作一直延续到现在甚至会继续下去或表示过去的动作对现在造成的影响；一般过去时表示动作发生的时间在过去。现在完成时属于现在时态范围，因此，不能和表示过去的时间状语连用。如：yesterday,last night,two weeks ago等 牢记:when 不与现在完成时连用。第5页/共24页Put the following senten
6、ces into English.1.A:火车已经开走了.B:什么时候开走的?A:半个小时之前开走的.2.A:你看过这部电影吗?B:看过.A:什么时候看的.B:上周星期天看的.A:The train has left.B:When did it leave？A:It left half an hour ago.A:Have you seen the film?B:Yes,I have.A:When did you see it?B:I saw it last Sunday.第6页/共24页注意点二、非延续性动词与现在完成时短暂性动词在肯定句、疑问句中不能与时间段连用，这些动词是：become,
7、begin,buy,borrow,arrive,come,die,fall,finish,get to know,go,join,leave,marry等。为了表述这种意思，我们常用相应的延续性动词have，keep等来代替非延续性动词。电影开始五分钟了。The film began five minutes ago.The film has been on for five minutes.第7页/共24页瞬间动词与延续性动词的转换瞬间动词与延续性动词的转换come/go be(in)leave be away borrow keep buy havedie be dead get to k
8、now know begin be on go out be offgo out be off arrive be here/there marry/get married(to)be married(to)begin to work/study/live work/study/leavefall asleep/get to sleep be asleepjoin the Party be in the Party/be a member of第8页/共24页()()()()()()()()I have bought a new dictionary for a week.I have had
9、 a new dictionary for a week.我买一本新词典已有一星期了。They have come here for two days.They have been here for two days.他们来这儿已经两天了。He has joined the League member for two years.He has been a League member for two years.他已入团两年了。The man has been dead for several years.The man has died for several years.这个人已经去世好几
10、年了。第9页/共24页1.I have borrowed the book for 2 weeks.()2.The film has begun for 5 minutes.()A B CA B CB kept B been on3.这辆自行车我买了两年了。这辆自行车我买了两年了。Ive _ the bike _ two years.4.He left Nanjing two years ago.He _ _ _ _ Nanjing for two years.5.The monkey died last month.The monkey _ _ _ for a month.had forha
11、s been away fromhas been dead第10页/共24页1、have(has)been in 表示“在某地（多长时间）”，现在仍在那里。常与表示一段时间的状语连用。例如：Mr.Brown has been in Shanghai for three days.布朗来上海已经有三天了。They have been in Canada for five years.他们到加拿大有五年了。2、have(has)been to表示“曾经去过某地”，现在已经不在那里了。可与just,ever,never等连用，例如：Mary has never been to the Great W
12、all.玛丽从未去过长城。Have(has)been to 后面可接次数，表示去过某地几次。例如：They have been to that village several times.他们去过那个村庄好几次了。3、have(has)gone to 意为“到某地去了”，表示到了某地或正在去某地的途中。总之，说话时该人不在现场，例如：-Where is Tom?-He has gone to the bookshop.他到书店去了。第11页/共24页1.My parents the Great Wall twice.They like there very much.2.you ever to
13、 the Happy valley?How long Peter the West Hill farm?My sister the shop.She will be back in two hours.She Shanghai.She isnt here.She Shanghai for two yearshas gone to have been to Have been to hasbeen in has gone to has been in 第12页/共24页注意点四:since的用法1since+具体的过去时间since2008sincelastSunday+agosincetwoy
14、earsago+句子(过去时)2Itis/hasbeen+一段时间+since从句.自从某事发生已有一段时间了.Itis/hasbeentwoyearssincemybrotherjoinedthearmy.第13页/共24页-Will you go shopping with me now?-Sorry,I cant.I _ my shirts.A wash B have washed C washed D am washing第14页/共24页How long have you _ the magazine?About a week.A found B borrowed C receive
15、d D had_ you _ the film Harry Potter 5?Not yet.I will see it this Sunday.A Did,see B Are,seeingC Have,seen D Do,see第15页/共24页How is Ann?I _ her for a long time.A dont see B wont see C didnt see D havent seen Hasnt Betty come yet?No,and I _ for her for nearly 2 hours.A wait B waited C have waited D ha
16、d waited第16页/共24页Is Mr Baker at home?Sorry,he isnt in.He _ Dalian for vacation.A has gone B went C is going D goesMr Zhang is a teacher of rich experience.He _ English for 20 years.A has taught B will teach C teaches D taught第17页/共24页-How many times have you _ to Xian?-Three times.A been B went C go
17、ne D goI wont forget my teacher because she _ so kind to me since I came to this school.A has been B will be C was D is 第18页/共24页-I will return the book to Mary,but I cant find her anywhere.-she _ the teachers office.You can find her there.A has left B was away from C has gone to D has been to You h
18、ave _ my dictionary for two weeks.Sorry,I will give it back to you right now.A lent B borrowed C kept 第19页/共24页-_ you _ out the problem,Sam?-Not yet,but I am going to.A Did,work B Are,working C Have,worked D Will,work-What are you going to do this Saturday?-I _ yet.A haven decided B wont decide C am
19、 not decided D didnt decide第20页/共24页How long _ the film _ when you got there?A has begun B had begun C has been on D had been on Mr Green _ Beijing since three years ago.A has come to B went to C had lived in D has been in 第21页/共24页He _ our school for two weeks.A left B has left C has been away from
20、 -My father _Shanghai with my grandparents.-Really?_ will they come back?A has been to,How soon B has gone to,How soon C has been to,How long D has gone to,How long 第22页/共24页She _ that same song so many times.Im getting sick of it!A sings B sang C will sing D has sung-Mike,you _ the magazine since last week.Can you return it now?-Sure.A borrowed B have borrowed C have kept第23页/共24页谢谢您的观看！第24页/共24页