八下现在完成时(1).ppt
Unit 9 Period 2Grade 8The Present Perfect Tense (现在完成时)by Liu Hong Experimental Middle School Have you everheard 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： 过去分词的构成过去分词的构成一、规则动词的变化1.worked traveled started 直加ed2. lived decided lived 去e加ed或直加d3.stopped 以辅音字母加y结尾的，先变y为i再加ed 。 4. studied以重读闭音节结尾，并且末尾只有 一个辅音字母，要先双写这个辅音 字母，再加ed, 二、不规则动词的变化：am/is /are been buy bought teach taught come come read read put putdo done go gone hear heard learn learnt see seen make madeeat eaten send-sentHave 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 ever 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 granny_never _a train. 4.你发了邮件了吗？ _you _the e-mail yet?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 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. 4.I have been to Beijing twice.She has gone to Hunan.have (has ) been to ：表示曾经到过某表示曾经到过某地；地；表示已经去了某地表示已经去了某地；have (has ) gone to ：用法四：用法四：用have been to ,have gone to 填空。1. 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 gone to has gone to Have been to1.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：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，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。Practice（实战演练） 1. 2. 3. 4.Summary 一、结构 二、用法 1. 2. 3. 4. 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. 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 moviehavent visitedHave been to have have beenhave lived for 1 .Tom _ there for 10 months since he got back 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 seenCA3 she isnt at the cinema now because she _the library. A has been to B 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 DB5. 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 finishedBC
