現(xiàn)在完成時(shí)語(yǔ)法ppt-文庫(kù)吧在線文庫(kù)
【正文】 began to work in 2021. She still works here now. She has worked at this school for 7 years. now past I began to teach English at this school five years ago. I have taught English at this school for five years. 用法 2： 過(guò)去發(fā)生的動(dòng)作一直 延續(xù) 到現(xiàn)在。the Present Perfect Tense 現(xiàn)在完成時(shí) 助動(dòng)詞 have (has)+過(guò)去分詞 done past now Yesterday , we cleaned the classroom. Now , the classroom is clean because we have cleaned it. 用法 1 強(qiáng)調(diào) 過(guò)去發(fā)生的動(dòng)作 對(duì) 現(xiàn)在產(chǎn)生的 結(jié)果或影響 1. My father bought many books for me yesterday . Now , I have a lot to read because ________________________________ 2. I saw this film last week. Now, I know this film because I_____________________. 3. I did my homework yesterday. Now, I can give it to the teacher because I______________ my father has bought many books for me. have seen it before have done it. “仍然，還 ” 用在疑問(wèn)句和否定句中，放在句末。 I have just bought a novel。 ) 非延續(xù)性動(dòng)詞不能與時(shí)間段連用： go/e/begin/start/die/buy/borrow/sell/leave/arrive/ receive/bee等詞語(yǔ)是 瞬間動(dòng)詞表示的動(dòng)作是一時(shí)的，不能延續(xù)，不能與 for、 since等表示一段時(shí)間的詞連用，也不能用于 how long引導(dǎo)的疑問(wèn)句中。 taketooktaken givegavegiven fallfellfallen eatateeaten writewrotewritten speakspokespoken freezefrozefrozen rideroderidden getgotgotten (got) fetfotfotten (fot) 特殊： am/iswasbeen arewerebeen, do (does)diddone gowentgone seesawseen showshowedshown (showed) lielay (lied)lain (lied) 比較現(xiàn)在完成時(shí)和過(guò)去時(shí)的區(qū)別： *現(xiàn)在完成時(shí)所表示的是過(guò)去的發(fā)生的動(dòng)作對(duì)現(xiàn)在造成的影響和結(jié)果，強(qiáng)調(diào)的是現(xiàn)在的情況，所以不能和表示過(guò)去的時(shí)間狀語(yǔ)連用，如： yesterday，last night, three weeks ago, in 1990。 如： for 3 years 。） 總結(jié)現(xiàn)在完成時(shí)： 構(gòu)成： have / has +過(guò)去分詞 。 特殊：動(dòng)詞 read的過(guò)去式和過(guò)去分詞雖然詞形與原形一致， readreadread，但發(fā)音分別是[ri:d][red][red]。
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