九年級(jí)英語(yǔ)完成時(shí)課件(已修改)
2025-11-17 21:20 本頁(yè)面
【正文】 完成時(shí)態(tài) 的用法 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 bee a doctor . Have / has + 過(guò)去分詞 2. 意義 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. ! :for 和 since 所引導(dǎo)的時(shí)間狀語(yǔ)都表示一段時(shí)間 . 對(duì)劃線部分提問(wèn)都用 How long . 1） He has been away since last week . 2） He has been away for one week . 對(duì)下列劃線部分進(jìn)行提問(wèn)。 練一練 ： 結(jié)束性動(dòng)詞不能和表示一段時(shí)間的時(shí)間狀語(yǔ)連用 ,但是他可以轉(zhuǎn)換成相應(yīng)的延續(xù)性動(dòng)詞 . 1. 直接用 延續(xù)性動(dòng)詞 buy –
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