現(xiàn)在完成時(shí)與過(guò)去完成時(shí)ppt.ppt

基本時(shí)態(tài)構(gòu)成,The Past Perfect Tense,過(guò)去完成時(shí)態(tài),1.現(xiàn)在完成時(shí)態(tài)表示過(guò)去發(fā)生的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果 Our teacher has left. We have studied English. I have already finished the homework. He has had his lunch. He has become a doctor.,have/has+過(guò)去分詞,2.某個(gè)動(dòng)作從過(guò)去已經(jīng)開(kāi)始,一直持續(xù)到現(xiàn)在,還有可能持續(xù)到將來(lái).動(dòng)作的持續(xù)性要通過(guò)一段時(shí)間來(lái)表示.,一段時(shí)間的表達(dá)方法有兩種: for: +一段時(shí)間 for a year for two weeks for three years,Since 過(guò)去的某一時(shí)刻, since nine since last week 一般過(guò)去時(shí)態(tài)的時(shí)間狀語(yǔ)從句 since you came since you got home.,注意:for 和since 所引導(dǎo)的時(shí)間狀語(yǔ)都表示一段時(shí)間.,He has been away since last week.,He has been away for one week.,對(duì)劃線部分提問(wèn)都用How long,現(xiàn)在完成時(shí)：,助動(dòng)詞have / has + 過(guò)去分詞,過(guò)去完成時(shí)：,助動(dòng)詞had + 過(guò)去分詞,構(gòu)成？,我認(rèn)識(shí)他三年了。,I have known him for three years.,I had known him when I was a student.,我當(dāng)學(xué)生時(shí)，就已經(jīng)認(rèn)識(shí)他了。,had known,have known,was,我已經(jīng)做完作業(yè)了。,表示在說(shuō)話時(shí)已經(jīng)做完。,I have finished my home-work.,在六點(diǎn)以前，我就已經(jīng)完 成作業(yè)了。,By six oclock, I had finished my homework.,表示在過(guò)去的某一段時(shí)間（six oclock 以前）已經(jīng)做完作業(yè)，與現(xiàn)在無(wú)關(guān)。,他們已經(jīng)吃過(guò)早飯了。,在他們到旅館之前他們已 經(jīng)吃過(guò)早飯了。,They have already had breakfast.,They had already had breakfast before they arrived at the hotel.,我從未看過(guò)如此令人興奮 的比賽,他說(shuō)他從未看過(guò)如此令人 興奮的比賽。,I have never seen such an exciting match before!,He said that he had never seen such an exciting match before!,過(guò)去完成時(shí)與現(xiàn)在完成時(shí)二者用法基本相同，但現(xiàn)在完成時(shí)以現(xiàn)在時(shí)間為基點(diǎn)，過(guò)去完成時(shí)則以過(guò)去的時(shí)間為基點(diǎn)，與現(xiàn)在無(wú)關(guān)，即過(guò)去的過(guò)去。過(guò)去完成時(shí)常用于賓語(yǔ)從句中;,Summary,結(jié)構(gòu)：助動(dòng)詞 had + p.p.(過(guò)去分詞),用法：表示過(guò)去某一時(shí)間和動(dòng)作之前已經(jīng)發(fā)生或完成 了的動(dòng)作或一直持續(xù)的動(dòng)作(過(guò)去的過(guò)去)。,By the end of last term, we had learned 600 English words. He said he had finished his homework. The film had already begun when we got to the cinema. I had studied English before I came here. When I came to GZ , he had been there for a long time.,過(guò)去完成時(shí)態(tài)的標(biāo)志：,和 by + 過(guò)去時(shí)間點(diǎn)連用, 如： by the time, by then, by last year, by the end of last year/month, by five oclock yesterday evening,By the end of last term, they _(learn) 10 English words.,2. 和before + 過(guò)去時(shí)間點(diǎn)連用,We _(arrive) the station before ten oclock.,had arrived,3. 常用于賓語(yǔ)從句中,She said that she _(write) three e-mails.,had written,4. 和when, before, after, as soon as, until/till等引導(dǎo)的狀語(yǔ) 從句連用或用于從句中,The airplane _ already _(leave) when I got to the airport.,5. 根據(jù)上下文判斷,I went to Li Hongs house, but he _(go) out.,had left,had gone,Last night, as soon as I _ (finish) my work, I went to sleep.,had finished,Fill in each blank with the proper verb form:,He said that he _ (write) that letter. Before he arrived, the train _(leave). By then, they _ (work)for eight hours. When she got to the cinema, the film _ already _ (be) on for 15 minutes. Mary told me she _(meet) my mother before. By six oclock yesterday evening, I _(finish) my homework. I went to Li Hongs house, but he _(go) out. We _(arrive) at the station before two oclock.,had written,had left,had worked,had been,had met,had finished,had gone,had arrived,1. After he _ (finish) his work, he went out.,finished,2. Annie told me that his father _ ( go ) to Paris and he _ ( come ) back in a few days.,had gone,would come,3. My friend _ (buy) the car two years ago. He _ (have) it for two years.,bought,has had,Fill in each blank with the proper verb form:,4. Before they arrived here, the film _ already _ (start).,had,started,Fill in each blank with the proper verb form:,A: _ you _(finish) your homework? B: Yes, I have. A: What had you done before you finished your homework? B: I _(watch) TV. A: What _ you _(do) now? B: I _(write) a letter to my friend Tom. A: _ you often _(write) to him? B: Yes. And he often _(write) to me. I _(get) a letter from him yesterday. So I _(answer) his letter now. A: When _ you _(post) it? B: I _(post) it as soon as I _(finish) writing.,Have finished,had watched,are doing,am writing,Do write,writes,will post,got,am answering,will post,finish,1. 過(guò)去完成時(shí)態(tài)的肯定式，否定式，疑問(wèn)式和簡(jiǎn)短回答：,I had had my breakfast before six oclock this morning.,I hadnt had my homework before six oclock this morning,Had you had your breakfast before six oclock this ?,Yes, I had. No, I hadnt.,She had left when got there. She hadnt left when I got there. Had she left when you got there? Yes, she had. No, she hadnt.,學(xué)習(xí)過(guò)去完成時(shí)需注意的兩個(gè)問(wèn)題：,2. 如果兩個(gè)動(dòng)作緊接著發(fā)生，則通常不用過(guò)去完成時(shí)， 用過(guò)去時(shí)態(tài)即可。,I saw them reading books when I came into the classroom. After I finished my homework, I went out to play.,