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【解析】【分析】這題考查時(shí)態(tài)的用法, by the time是連詞詞組,可以連接時(shí)間狀語(yǔ)從句,“到什么時(shí)候?yàn)橹埂?,主句一般和相?yīng)的完成時(shí)連用,因?yàn)閺木涫沁^(guò)去時(shí),所以從句用過(guò)去完成時(shí)連用。C.had, went19.By the time she went outside, the bus ____ already ______ .A.而很多的題目,句中并沒(méi)有像本題一樣有明確的時(shí)間,很多要通過(guò)上下文的判斷得知。has been on【答案】 A 【解析】【分析】句意:當(dāng)我們趕到會(huì)議室的時(shí)候會(huì)議已經(jīng)開(kāi)始了。C.had been on18.When we hurried to the meeting room, the meeting _______.A.【點(diǎn)評(píng)】英語(yǔ)中的時(shí)態(tài)主要是借助于時(shí)間狀語(yǔ)與上下文語(yǔ)境來(lái)進(jìn)行判斷。結(jié)合語(yǔ)境可知主句描述的是持續(xù)到過(guò)去某時(shí)并將繼續(xù)下去的動(dòng)作,故用過(guò)去完成時(shí)態(tài)。D.C.B.A.故選D【點(diǎn)評(píng)】考查過(guò)去完成時(shí)。buy【答案】 B 【解析】【分析】句意:我問(wèn)你媽媽她是否買(mǎi)了那件裙子。had buyedhad boughtbought 【點(diǎn)評(píng)】考查現(xiàn)在完成時(shí),注意結(jié)合時(shí)間狀語(yǔ)確定句子的時(shí)態(tài)和句子結(jié)構(gòu)。根據(jù) for 30 years already,可知句子為現(xiàn)在完成時(shí),表示發(fā)生于過(guò)去的動(dòng)作一直持續(xù)到現(xiàn)在。D.has workedB.works要根據(jù)上下文的聯(lián)系確定句子時(shí)態(tài)。ll do it at ,所以句子時(shí)態(tài)用現(xiàn)在完成時(shí),現(xiàn)在完成時(shí)的結(jié)構(gòu)have+done,故選A。 finish【答案】 A 【解析】【分析】句意:——皮特,你完成作業(yè)了嗎?——還沒(méi)有,我馬上做。C.Did。 finishedll do it at once.A. 【點(diǎn)評(píng)】考查時(shí)態(tài),注意過(guò)去的過(guò)去是過(guò)去完成時(shí)的用法。has been left【答案】 B 【解析】【分析】 句意:——吉姆,你為什么不坐火車(chē)去北京呢?——真倒霉!我到車(chē)站時(shí),火車(chē)已經(jīng)開(kāi)走了。C.had already leftt you go to Beijing by train? — Bad luck! When I got to the station, the train ________.A.注意句子涉及到begin和be on的詞義和用法。arrived到達(dá),一般過(guò)去時(shí);had begun開(kāi)始,過(guò)去完成時(shí),had been on進(jìn)行,上映;begin開(kāi)始,是短暫性動(dòng)詞,不能和段時(shí)間連用,根據(jù) for five ,be on進(jìn)行,上映,表狀態(tài),可和段時(shí)間連用,by the time到……時(shí)候,從句用一般過(guò)去時(shí), 表示“截止到從句動(dòng)作發(fā)生時(shí),主句動(dòng)作已經(jīng)完成,即過(guò)去的過(guò)去”,主句用過(guò)去完成時(shí),故選C。had arrived。arrived。had arrived。 had begun12.By the time he ______________ at the cinema, the movie ______________ for five minutes. A.by the time引導(dǎo)時(shí)間狀語(yǔ)從句,從句用一般過(guò)去時(shí),主句則用過(guò)去完成時(shí),故選B。had arrived。 leftC.arrived。 had left.A.at the railway station, the train 11.By the time he 句意是:—昨天晚上除了你之外我們都去電影院了,你為什么沒(méi)來(lái)?—因?yàn)檫@部電影我已經(jīng)看過(guò)兩次了。D.was watchinghad watchedthat movie twice.A.t you e?—Because I 【點(diǎn)評(píng)】本題考查過(guò)去完成時(shí)的用法,表示在過(guò)去某一時(shí)間前已經(jīng)發(fā)生的動(dòng)作。D.had been toB.have gone to9.—We all went to the park except you last weekend. Why didn39。故選D。had been married【答案】D