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1、,Unit 9 Period 2Grade 8The Present Perfect Tense(现在完成时),Have you ever,heard the song?seen the movie?read the book?,Yes,I have/No,I havent.,Has he/she ever seen the movie?Yes,he/she has./No,he/she hasnt.I have seen the movie twice.I havent read the book.,现在完成时,一、概念,二、结构：肯定句：否定句：疑问句：,表示说话之前已经完成的动作，而且这
2、个动作的结果对现在的情况仍有影响。,主语+have/has+动词过去分词+其它,主语+have/has+not+动词过去分词+其它,Have/Has+主语+动词过去分词+其它?,过去分词的构成一、规则动词的变化1.work travel start 2.live decide live3.study 4.stop,ed ed ed 直接加ed,d d d 直接加d,二、不规则动词的变化：am/is/are buy teach come read put do go hear learn see make eat send,二、不规则动词的变化：am/is/are been buy bought
3、 teach taught come come read read put putdo done go gone hear heard learn learnt see seen make madeeat eaten send sent,Have you had your breakfast yet?Yes,I have.Ive just had itI have already posted the photos.,（现在不饿了）,（这些照片已不在这里了）。,用法一：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。,I have read Moyans book.,Have you ev
4、er been to Chengdu?Ive never been to that farm before I havent learned the word yet.,用法二：现在完成时可以和already,never,ever,just,before,yet 等状语连用。yet 用于疑问句中表示已经，用于否定句 中表示还；在口语中一般置于句末。ever 意为曾经，常位于助动词之后，实义动词 之前。before 意为以前，表示现在看来的以前，不与表示 一段时间的状语连用。常单独用于句末。never 意为从不，主要与肯定性动词连用，而不与 否定性动词连用。,Practice（实战演练）,1.我
5、学过这篇课文。I_already _this text.2.我刚丢了我的钱包。I_ just_my wallet.3.我奶奶从未坐过火车车。My grandma_never _a train.4.你发了邮件了吗？_you _the e-mail yet?,have learnt,have lost,has taken,Have sent,I have taught English for ten years.since 2002.I have learned English for eight years.since eight years ago.I have lived here for
6、5 years.since I came to this city。,用法三：现在完成时常和for,since连用。for+时间段since+时间点或表示过去时的句子,Practice（小试牛刀）,1.I_in Zhong Jianng for five years.(work)2.We_friends since three years ago.(be)3.He_here since 1992.(live)4.I _ the film.(see),have worked,have been,has lived,have seen,I have been to Beijing twice.,S
7、he has gone to Hunan.,have(has)been to：,表示曾经到过某地；,表示已经去了某地；,have(has)gone to：,用法四：,用have been to,have gone to 填空。Where is Tom?Do you know?-Yes,he _ Canada.2.My mother _Beijing,and she will come back in two days.3.-_you ever _ _Toronto.-Not yet.4.Jiuzaigou is very beautiful.I_there many times.,has go
8、ne to,has gone to,Have been to,have been,1.I have seen the film.I saw the film last week.,（我已经了解电影的内容）,（只说明上星期看了这部电影，不涉及现在的情况。）,用法五：现在完成时和一般过去时的区别,2.He has lived here since 1968.He lived here in 1980.,现在完成时与一般过去时的区别,现在完成时：表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况，所以它不能和表示过去的时间状语连用。一般过去时：只表示过去的动作或状态，和现在不发生联系，
9、它常和表示过去的时间状语（yesterday,last week/year/night,two days ago,in 1980等）连用。,总结：,一、现在完成时的概念：,二、现在完成时的句型结构：,表示说话之前已经完成的动作，而且这个动作的结果对现在的情况仍有影响。,肯定句：主语+have/has+动词过去分词+其它,否定句：主语+have/has+not+动词过去分词+其它,疑问句：Have/Has+主语+动词过去分词+其它?,巩固练习句型转换。1.Linda has seen the movie many times.（改为一般疑问句）_ Linda _ _ _ many times?2
10、.I have visited the museum.(改为否定句)I _ _ the museum.汉译英。1.-你去过上海吗？-是的，我去过，我去过那儿两次。-_ you ever _ _ Shanghai?-Yes,I _.I _ _ there twice.2.他们住在这儿两年多了。They _ _ here _ over two years.,Has seen the movie,havent visited,Have been to,have lived for,have have been,1.Tom _ there for 10 months since he got back
11、 to his hometown.(2012德阳)A.has lived B.had lived C.lived2 would you like to watch the three D film Lost in Thailand(泰囧）with me?-Certainly.I dont mind seeing it again although I _it twice.A saw B was seen C have seen D had seen,C,A,3 she isnt at the cinema now because she _the library.A has been to B
12、 have been to C have gone to D has gone to 4 Sanya is a beautiful city.I _ there twice.A have gone B have been C have gone to D have been to,D,B,5.Have you read the latest news in the newspaper?-No,I havent _.A too B yet C just D already6-Look,The light is still on in Ms Lius office.（2010德阳）-Im afraid she her work yet.A.doesnt finish B.didnt finish C.hasnt finished,B,C,Thank you!,
