【正文】
e has been an army man for three ,改為be延續(xù)動(dòng)詞,并根據(jù)意義做相應(yīng)的改動(dòng):be an army man ?、谙铝芯湫椭谐S矛F(xiàn)在完成時(shí) It is(has been)+一段時(shí)間+since從句 This(That/It)is the first(second..)time that+(考核重點(diǎn))?! e have learned 3000 English words since we began to study English. He has lived in Beijing for 5 years. 注:①在用法2中如有不延續(xù)動(dòng)詞,必須改換為延續(xù)動(dòng)詞: 如:表示“他來(lái)這時(shí)已經(jīng)3天了。 I have ready seen the film. 。常與表示過(guò)去具體的時(shí)間狀語(yǔ)連用(或有上下文語(yǔ)境暗示);用于表達(dá)過(guò)去的習(xí)慣;如: I met her in the street yesterday. I once saw the famous star here. They never drank wine. ?。哼^(guò)去某時(shí)或某一階段內(nèi)正在進(jìn)行的動(dòng)作?! 、一般過(guò)去時(shí):(考核重點(diǎn))?! ∪纾骸 am meeting tonight. We are leaving on Friday. :與一般將來(lái)時(shí)對(duì)比,表示以過(guò)去的某時(shí)為準(zhǔn)還沒(méi)有發(fā)生而將要發(fā)生的動(dòng)作?! he shop closes at 11:00 day. Tomorrow is Wednesday. 表近期特定的安排或計(jì)劃;go、e等起止動(dòng)作可用進(jìn)行時(shí)代替將來(lái)時(shí)。常與when引導(dǎo)的時(shí)間狀語(yǔ)連用:be about to do sth..when.“正要做某事,就在這時(shí)又… Autumn harvest is about to start. I was about to leave when a friend of mine came. 少數(shù)用于表示起止的動(dòng)詞如e、go、leave、arrive、fly、return、start、begin、open、close、end、stop等常用一般現(xiàn)在時(shí)代替將來(lái)時(shí),表示一個(gè)按時(shí)刻表規(guī)定、計(jì)劃或安排要發(fā)生的動(dòng)作。be going to do是按主語(yǔ)自己的計(jì)劃,安排將要做的動(dòng)作。如: If it is fine,we39。Wi則表示一種必然趨向,無(wú)需據(jù)推斷?! he size and the price ane OK,so39。ll die without air or water. 注:在時(shí)間、條件、讓步狀語(yǔ)從句中常用一般現(xiàn)在時(shí)代替將來(lái)時(shí)。 ?、诒硎疽环N必然趨向或習(xí)慣動(dòng)作。 I know what you mean. Smith owns a car and a h