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D.had stayed【答案】 D 【解析】【分析】句意:直到上周末,她已經(jīng)待在中國(guó)西部?jī)蓚€(gè)月幫助那些無(wú)家可歸的孩子們。根據(jù)時(shí)間狀語(yǔ)By the end of last week到上周末為止,可知本句描述的是過(guò)去某時(shí)之前已經(jīng)完成的動(dòng)作,故用過(guò)去完成時(shí)態(tài),故選D?!军c(diǎn)評(píng)】此題考查動(dòng)詞的時(shí)態(tài)。根據(jù)時(shí)間狀語(yǔ)確定句子的時(shí)態(tài)。18.She_______ballet before she entered film industry.A.has practicedB.had practicedC.will practicedD.would practiced【答案】 B 【解析】【分析】句意:在進(jìn)入電影業(yè)之前,她練習(xí)跳芭蕾。本句考查過(guò)去完成時(shí),在她進(jìn)入電影業(yè)之前為“過(guò)去的過(guò)去”;即過(guò)去完成時(shí);故選B?!军c(diǎn)評(píng)】考查過(guò)去完成時(shí)。19.By the time my mum got home, I _______ my homework.A.have finishedB.had finishedC.finishedD.will finish【答案】 B 【解析】【分析】考查動(dòng)詞時(shí)態(tài)。句意為“我母親到家時(shí),我已經(jīng)做完作業(yè)了。”主句動(dòng)作在從句動(dòng)作(一般過(guò)去時(shí))之前就已經(jīng)完成了,因此主句應(yīng)用過(guò)去完成時(shí),故選B。20.-My parents our home for a few hours when I arrived. I didn39。t meet them.-You could call them if you wanted to know where they were.A.have been away fromB.had been away fromC.had leftD.had gone【答案】 B 【解析】【分析】句意:當(dāng)我到家的時(shí)候,我的父母已離開(kāi)家?guī)讉€(gè)小時(shí)了。我沒(méi)遇到他們。假如你想知道他們?cè)谀睦锏脑挘憧梢越o他們打電話。當(dāng)我到家的時(shí)候是過(guò)去時(shí)間狀語(yǔ),所以我的父母已離開(kāi)家?guī)讉€(gè)小時(shí)了。for a few hours表示一段時(shí)間,不能與非延續(xù)動(dòng)詞連用。所以要用過(guò)去完成時(shí)態(tài)。故選B.【點(diǎn)評(píng)】考查完成時(shí)態(tài)的用法。21.——How was the movie you saw yesterday?——I have no idea. By the time I got to the movie theatre, the movie ______.A.has already finishedB.have finished yetC.had already finished 【答案】 C 【解析】【分析】had+動(dòng)詞的過(guò)去分詞構(gòu)成過(guò)去完成時(shí),表示的過(guò)去的過(guò)去的時(shí)間點(diǎn),本句中電影結(jié)束發(fā)生在我到達(dá)電影院之前,而到達(dá)電影院用的過(guò)去時(shí),電影結(jié)束發(fā)生在過(guò)去的過(guò)去,所以用過(guò)去完成時(shí)。句意:昨天你看的電影怎么樣?沒(méi)想法,我到電影院的時(shí)候,電影已經(jīng)結(jié)束了。故選C?!军c(diǎn)評(píng)】考查過(guò)去完成時(shí)的用法。22.Rose and Minnie ________ each other pretty well before they worked in the same bank. A.knowsB.knowC.have knownD.had known【答案】 D 【解析】【分析】句意:羅斯和米妮他們?cè)谕粋€(gè)銀行工作以前就認(rèn)識(shí)了。根據(jù)時(shí)間狀語(yǔ)before they worked in the same bank可知,認(rèn)識(shí)是在同一個(gè)銀行工作之前,worked是過(guò)去時(shí),所以,空白處指過(guò)去的過(guò)去,用過(guò)去完成時(shí):had+過(guò)去分詞,故答案為D?!军c(diǎn)評(píng)】考查過(guò)去完成時(shí)。掌握過(guò)去完成時(shí)的意義:表過(guò)去的過(guò)去;構(gòu)成:had+過(guò)去分詞。23.Tom realized that he ________ his physics book at home when he reached school.A.leftB.had leftC.was leavingD.leaves【答案】 B 【解析】【分析】本題考查過(guò)去完成時(shí)的用法,由had+過(guò)去分詞。我們可以看到意識(shí)到和到都是過(guò)去的動(dòng)作,而忘記帶物理書則是在意識(shí)到之前,故為過(guò)去的過(guò)去,選B。24.My aunt said that she ________ to Guangzhou. A.has never goneB.had never goneC.has never beenD.had never been【答案】 D 【解析】【分析】句意:我阿姨說(shuō)她從沒(méi)去過(guò)廣州。have gone to…表示已經(jīng)去了某地(強(qiáng)調(diào)不在說(shuō)話者所在地);have been to…曾經(jīng)去過(guò)某地(現(xiàn)在已經(jīng)回來(lái))。又因?yàn)榇颂幨琴e語(yǔ)從句,而且主句是過(guò)去時(shí),所以從句用過(guò)去完成時(shí)had been to。故答案為D。【點(diǎn)評(píng)】此題考查過(guò)去完成時(shí)的用法。25.I you could e. A.hopeB.had hopedC.have hopedD.are hoping【答案】B 【解析】【分析】句意:我本來(lái)希望你能來(lái)。動(dòng)詞hope用過(guò)去完成時(shí)來(lái)表示過(guò)去未曾實(shí)現(xiàn)的想法,希望,打算或意圖等。故選B。【點(diǎn)評(píng)】考查過(guò)去完成時(shí)。26.They to help but could not get there in time. A.wantedB.had wanted16