Unit 1 Realtionships 语法Grammar 过去完成时-2025-2026学年高二英语选择性必修第一册单元重难点易错题精练（北师大版2019）

Unit 1 RELATIONSHIPS 过去完成时 一、单项选择 1．When Jim finally got to the cinema last night after dealing with the unexpected traffic accident on the way, the film _______ already _______. A．has; started B．had; started C．was; starting D．would; start 【答案】B 【详解】考查时态。句意：昨晚吉姆在处理了路上意外的交通事故后最终到达电影院时，电影已经开始了。“吉姆到达电影院”是过去的动作，根据语境和“already”可知，而“电影开始”发生在“吉姆到达电影院”之前，即“过去的过去”，所以应该用过去完成时态had started。故选B项。 2．By the 10th century, Old English ________ the official language of England. A．became B．had become C．has become D．will become 【答案】B 【详解】考查动词时态辨析。句意：到10世纪时，古英语已经成为英格兰的官方语言。由句意及时间状语“By the 10th century”可知，此处强调在10世纪之前古英语已成为官方语言，需用过去完成时。故选B项。 3．By the end of last year, they ________ three bridges over the river. A．have built B．had built C．built D．were building 【答案】B 【详解】考查时态。句意：到去年年底，他们已经在河上建了三座桥。根据时间状语“By the end of last year (到去年年底为止)”可知，指在过去某一个时间点之前就已经完成了的事件，所以句子应用过去完成时，其结构为“had+过去分词”，build“建造”的过去分词是built。故选B。 4．Alex ______ tea culture for many years before he came to China in 2023. A．studies B．studied C．had studied D．was studying 【答案】C 【详解】考查过去完成时。句意：在2023年来到中国之前，亚历克斯已经研究茶文化很多年了。study(研究)是主句谓语动词，与主语之间是主动关系，根据时间状语“before he came to China in 2023”可知，研究茶文化这个动作发生在亚历克斯2023年来到中国之前，即“过去的过去”，所以应该用过去完成时。故选C项。 5．— Was Grandpa glad to see his old friends at the alumni gathering yesterday?   — Yes, he was. He ______ his old friends for years. A．hasn’t seen B．hadn’t seen C．didn’t see D．wouldn’t see 【答案】B 【详解】考查动词时态辨析。句意：——爷爷昨天在校友聚会上见到他的老朋友高兴吗？——是的，他很高兴。他已经很多年没见到他的老朋友了。A. hasn’t seen现在完成时；B. hadn’t seen过去完成时；C. didn’t see一般过去时；D. wouldn’t see过去将来时。根据前文“Was Grandpa glad to see his old friends at the alumni gathering yesterday?”可知，爷爷昨天在校友聚会上见到了他的老朋友，而根据后文“for years”可知，他已经很多年没见到老朋友了，也就是说“没见到老朋友”这个动作发生在“昨天见到老朋友”之前，即过去的过去，所以应该用过去完成时。故选B项。 6．By the time the city’s new environmental policies were enforced last month, most factories ______ the required upgrades to their waste treatment systems, ensuring compliance with the law. A．completed B．have completed C．will complete D．had completed 【答案】D 【详解】考查时态。句意：到上个月北京的新环保政策实施时，大多数工厂已经完成了废物处理系统的必要升级，确保遵守了法律。By the time是完成时的标志，由the city’s new environmental policies were enforced last month可知，句子时态用过去完成时，表示过去的过去完成的动作，故选D。 7．Mary wanted to see Miss Sun off at the airport, but when she arrived there, she was told that Miss Sun ________. A．had left B．was leaving C．has left D．would leave 【答案】A 【详解】考查时态。句意：玛丽想去机场为孙小姐送行，但当她到达那里时，却被告知孙小姐已经走了。根据上文she was told可知表示过去的过去，即离开这一动作发生在被告知之前，用过去完成时，故选A。 8．It was the first time that he ________ with a host family. A．lived B．had lived C．lives D．has lived 【答案】B 【详解】考查时态。句意：这是他第一次和寄宿家庭住在一起。It was the first time that...为固定句型，意为“这是某人第一次做某事”，根据was可知，该句型中that从句需用过去完成时，表示在过去的某个时间点之前已经完成的动作。故选B项。 9．Mrs. Jones was annoyed that the sweeping machine she ________ was out of order again. A．had it repaired B．was repairing C．repaired D．had had repaired 【答案】D 【详解】考查时态和固定短语。句意：Mrs. Jones很生气，因为她已经修好的扫地机又坏了。她使扫地机被修，have sth. done是固定短语，意为“使某物被……”，修理扫地机的动作在was annoyed前发生，因此空格处是had had repaired，第一个had是助动词，第二个had是实义动词。故选D。 10．When Robert got to the third floor, he found that he didn’t take his keys, and then remembered he _______ them in the car. A．was leaving B．had left C．would leave D．had been leaving 【答案】B 【详解】考查动词时态。句意：当罗伯特到达三楼时，他发现自己没带钥匙，然后想起自己把钥匙忘在了车里。此处为宾语从句的谓语动词，结合句意，leave发生在谓语动词remembered之前，所以此处使用过去完成时态。故选B项。 11．It was the second time that she ______ Mount Everest with her teammates. A．had climbed B．has climbed C．would climb D．climbed 【答案】A 【详解】考查动词时态。句意：这是她第二次和队友们一起攀登珠穆朗玛峰。本句为固定句型“It was the+序数词+time that...”，that从句应用过去完成时，表示“到过去某个时间为止已经完成的动作”，即had climbed。故选A。 12．By the time we arrived, the meeting ______ for half an hour. A．is on B．has been on C．was on D．had been on 【答案】D 【详解】考查动词时态。句意：我们到的时候，会议已经开了半个小时了。根据时间状语“By the time we arrived”可知，此处表示“过去的过去”，使用过去完成时。故选D。 13．The student, when asked why she ______ the rules during the exam, remained silent and refused to answer. A．had broken B．broke C．breaks D．was breaking 【答案】A 【详解】考查时态。句意：当被问到为什么在考试中违反规则时，这个学生保持沉默，拒绝回答。作why引导的名词性从句谓语，发生在主句谓语“remained silent and refused to answer”之前，此处从句表示过去的过去，用过去完成时。故选A。 14．By the time he moved to Vienna, Ludwig van Beethoven ______ a reputation as a wonderful young musician. A．enjoyed B．was enjoying C．has enjoyed D．had enjoyed 【答案】D 【详解】考查动词时态。句意：当Ludwig van Beethoven搬到维也纳时，他已经拥有了作为一位优秀青年音乐家的声誉。enjoy“享有”。时间状语为“by+过去时间”，句子时态用过去完成时，根据时间状语By the time he moved to Vienna可知，主句时态需用过去完成时，谓语用had enjoyed。故选D。 15．The detox was more difficult to tolerate than I ________. A．had expected B．expected C．was expected D．were expected 【答案】A 【详解】考查时态。句意：脱瘾比我预期的更难以忍受。根据“was”可知，expect发生在was之前，用过去完成时，且与主语为主动关系。故选A项。 16．I ________ to visit you last Friday, but I didn’t, for I had something urgent to deal with then. A．has planned B．had planned C．planned D．was planned 【答案】B 【详解】考查时态。句意：我本来计划上周五来拜访你，但由于当时有紧急的事情要处理，因此没有去。plan这个动作发生在后文的didn’t之前，表示过去的过去，需要使用过去完成时态 had planned，表示本打算做而未做。故选B。 17．He ______ away without a word before I______ something. A．would go; said B．had gone; said C．had gone; say D．went; would say 【答案】B 【详解】考查动词时态。句意：他一句话也没说就走了。根据句意，本句描述已发生的事，所以say用一般过去时，而go的动作发生在say之前，为过去的过去，用过去完成时。故选B项。 18．I found the lecture hard to follow because it ________ when I arrived. A．had started B．started C．would start D．was starting 【答案】A 【详解】考查时态。句意：我发现讲座很难跟上，因为我到达时已经开始了。分析句子可知，句子为时间状语从句，从句“when I arrived”为一般过去时，主句动作“讲座开始”发生在“到达”之前，即“过去的过去”，故主句为过去完成时，空格处应填“had started”。故选A项。 19．Tom_________of visiting his grandmother, but the bad weather made him change his mind. A．has thought B．thought C．had thought D．is thinking 【答案】C 【详解】考查时态。句意：汤姆原打算去看望他的祖母，但恶劣的天气使他改变了主意。根据the bad weather made him change his mind可知，空处描述发生在过去之前的动作，应用过去完成时，表示“过去的过去”。故选C。 20．It was the fourth time that Mr Smith ______ the Summer Palace. A．has visited B．visited C．visits D．had visited 【答案】D 【详解】考查过去完成时。句意：这是史密斯先生第四次参观颐和园。根据句型It was the + 序数词 + time that sb. had done sth，从句时态应该用过去完成时。故选D项。 二、语法填空 21．Luckily, the parents (put) away all the clothes before it rained. 【答案】had put 【详解】考查时态。句意：幸运的是，父母在下雨前把所有的衣服都收起来了。设空处作谓语，根据时间状语从句before it rained可知，此处表示过去的过去发生的动作，应用过去完成时。故填had put。 22．It was the fourth time that we (argue) with the dealer. 【答案】had argued 【详解】考查固定句型和时态。句意：这是我们第四次和经销商争吵了。“It+is/was+the first/second/...time that sb. has/had done sth.”为固定句型，表示“这是某人第几次做某事”，该句型主句中be动词是is时，从句中谓语动词用has/have done，be动词是was时，从句中谓语动词用had done，本句中是“It was the fourth time...”，所以从句中应使用had argued。故填had argued。 23．The book (write) by a famous author before it was published. 【答案】had been written 【详解】考查时态和语态。句意：这本书在出版前是由一位著名作家写的。此处为主句谓语动词，book与write之间为被动关系，动作write在was published之前发生，应用过去完成时的被动语态，write的过去分词是written。故填had been written。 24．By the time he was twelve, Edison (build) his own chemistry lab. 【答案】had built 【详解】考查时态。句意：到爱迪生12岁的时候，他已经建好了他自己的化学实验室。by the time引导的时间状语从句中，从句是一般过去时，主句用过去完成时，故填had built。 25．He (make) up his mind when George came and told him something new. (用适当的词填空) 【答案】had made 【详解】考查时态。句意：当乔治来告诉他一些新情况时，他已经下定了决心。根据后文when George came and told him something new可知表示过去的过去，用过去完成时。故填had made。 26．As a young boy of a poor family, he （experience）many hardships before he moved to London. 【答案】had experienced 【详解】考查时态。句意：作为一个贫困家庭的小男孩，在他搬到伦敦之前他经历了许多苦难。experience 这一动作发生在moved之前，即：过去的过去，故该处用过去完成时，填had experienced。 27．It was the third time that she (come) to this mountain to see the children. 【答案】had come 【详解】考查固定句型、时态。句意：这是她第三次来这座山看望孩子们。“It was＋the＋序数词＋time that...”是固定句型，主句为一般过去时，从句中的时态要用过去完成时，故填had come。 28．He, up to then, (find) a good subject to write about. 【答案】had found 【详解】考查动词时态。句意：到那时为止，他已经找到了一个很好的写作题材。空处应填谓语动词，由时间状语up to then可知动作发生在过去的过去，应用过去完成时。故填had found。 29．He (roll) up his jeans, apparently waiting in the pond. 【答案】had rolled 【详解】考查时态。句意：他卷起了牛仔裤，显然是在池塘里等着。roll up (卷起)作谓语，与其逻辑主语He之间是主动关系，结合句意推知，本句讲述过去的事情，而“卷起了牛仔裤”应该是发生在“在池塘里等”这一动作之前，表示过去的过去，用过去完成时态。故填had rolled。 30．It (be) possible but not easy to buy single copies of newspapers before 1830. 【答案】had been 【详解】考查时态。句意：在1830年以前，买一份报纸是可能的，但并不容易。根据句子时间状语before 1830 可知，此处表动作发生在“过去的过去”，应用过去完成时态。故填had been。 31．He (intend) to go, but on second thoughts, he gave up the idea. 【答案】had intended 【详解】考查时态。句意：他本来想去，但进一步考虑后，他打消了这个念头。动词intend，hope，expect，plan等的过去完成时表示过去未曾实现的愿望。故填had intended。 32．Everything in my childhood crowded into my mind as if they (happen) yesterday. 【答案】had happened 【详解】考查虚拟语气。句意：童年的一切都涌进我的脑海，就像昨天发生的一样。结合句意可知，as if引导的状语从句应用虚拟语气，表示与过去事实相反，应用过去完成时，故填had happened。 33．By the end of last term we (finish) the book. 【答案】had finished 【详解】考查动词时态。句意：到上学期末，我们已经读完了这本书。分析句子可知，此处为谓语动词的填入，结合句意以及By the end of last term时间状语可知，此处为过去完成时。故填had finished。 34．I got up at 8:00 this morning, and I (sleep) for ten hours. 【答案】had slept 【详解】考查时态。句意：我今天早上八点起床，已经睡了十个小时了。动作sleep发生在got up之前，此处表示过去的过去，应用过去完成时。故填had slept。 35．He (work) in the store for five years before he moved here. 【答案】had worked 【详解】考查动词时态。句意：他搬到这里之前在这家商店工作了五年。分析句子可知，设空处主句的谓语部分，时间状语从句使用的是一般过去时，主句的动作work发生在从句谓语动词moved之前，应使用过去完成时。故填had worked。 36．After visiting many fancy restaurants, she declared this bowl of noodles to be the best thing she (eat) in China ever. 【答案】had eaten 【详解】考查时态。句意：在逛了许多高级餐馆之后，她说这碗面条是她在中国吃过的最好吃的东西。“吃”这个动作发生在declared之前，表示“过去的过去”，因此空格处时态是过去完成时，故填had eaten。 37．The downturn hit the real estate firm where she (work)for ten years as an office manager. 【答案】had worked 【详解】考查时态。句意：她曾在一家房地产公司做了10年的办公室经理，经济低迷打击了这家公司。根据动词 hit 为过去式判断，“经济低迷打击了这家公司”发生在过去，而她在此之前是办公室经理，表示过去的过去，故用过去完成时。故填had worked。 38．We (seek) a solution to the problem before the manager put forward a better one. 【答案】had sought 【详解】考查谓语动词。句意：在经理提出一个这个问题更好的解决办法之前我们已经找到了一个。分析句子结构和意思可知，动词seek发生在before 引导的时间状语从句谓语put之前，所以这里要用过去完成时，表示过去的过去发生的动作。故填had sought。 39．As far as I know, he (survive) on a small bottle of water in the desert before he was found. 【答案】had survived 【详解】考查动词时态。句意：据我所知，在他被发现之前，他在沙漠中靠一小瓶水生存。根据句意及常识可知，“先幸存，后被发现”，所以survive 发生在was found之前，符合过去完成时使用要求——过去的过去。故填had survived. 40．By the time my mother came back from the work, my sister and I (cook) supper and were waiting for her at the table. （用所给词的适当形式填空） 【答案】had cooked 【详解】考查动词时态。句意：妈妈下班回来的时候，我和妹妹已经做好晚饭，在饭桌上等她。分析句子结构可知，此处应为谓语动词，根据时间状语by the time my mother came back from the work可知，cook发生在谓语动词came back之前，所以此处应使用过去完成时态，且cook与句子主语My sister and I之间为主动关系。故填had cooked。 三、完成句子 41．They are going to hold a party next Sunday.（改为过去完成时） 【答案】They had held a party before last Sunday. 【详解】考查过去完成时。句意：他们在上周日之前举行过一次聚会。一般将来时改过去完成时，“are going to hold”变为“had held”，时间状语调整。故填They had held a party before last Sunday. 42．医生告诉我，我的膝伤已经康复，或许可以进行一些适度的锻炼。 My doctor told me I my knee injury and could possibly take some moderate exercise. (recover) 【答案】had recovered from 【详解】考查动词时态。表示“从……中康复”用动词recover from，且“康复”这一动作发生在医生告诉之前，即发生在过去的过去，时态应用过去完成时。故填had recovered from。 43．汤姆原本打算参加聚会，但他另有事务缠身。 Tom the party, but he was otherwise engaged. (intend) 【答案】intended to have attended/ had intended to attend 【详解】考查动词时态。表示“原本打算做某事”用intend to have done sth.，表示过去本应该发生但实际上没有发生的动作，且“打算”这一动作发生在过去，谓语用过去式intended；表示“参加”用attend，所以用intended to have attended。或者：Tom被告知或意识到自己有其他事情要做（这个过去的时间点）之前，他已经有了参加派对的意图，时态用过去完成时，表示“原本打算做某事”用had intended to do sth.，所以用had intended to attend。故填intended to have attended或had intended to attend。 44．会议结束时，她已经专心起草提案超过三个小时了。 By the time the meeting ended, she drafting the proposal for over three hours. 【答案】 had been absorbed in 【详解】考查时态和固定短语。表示“专心于……”用be absorbed in。结合By the time the meeting ended可知，主句时态用过去完成时，表示在过去某一时间点之前已经完成的动作。故填had been absorbed in。 45．考虑到你已经尽力了，我们决定认可你的工作。 , we decided to recognize your work. 【答案】Given（that） you had tried your best 【详解】考查从句和时态。“考虑到”为given that引导条件状语从句，that可以省略，“尽力”为try one’ s  best，所表示的动作发生在decided之前，用过去完成时。故填Given（that） you had tried your best。 46．Since 1958 he had been devoted to aerospace science and research and the cause of China's aerospace. 他于1958年起献身于航空航天研究工作, 为中国的航天事业做出巨大的贡献。 【答案】made great contributions to 【详解】考查固定短语。根据汉语提示可知，空处需要补全“做出巨大的贡献”。“对……做出贡献”可用固定短语make contributions to。make需要过去分词，和前文中的助动词had构成过去完成时，是并列的谓语动词。“巨大的”可用形容词great，修饰名词contributions。故填made great contributions to。 47．他急急忙忙赶到售票处，却被告知票已经被卖光了。 He hurried to the ticket office, only . 【答案】to be told no ticket was available/ all the tickets had been sold out 【详解】考查非谓语动词和宾语从句。“告知”tell，句中已有谓语hurried，tell作非谓语动词，结合语意，“被告知票已经被卖光”是意料之外的结果，且tell与主语He之间是被动关系，所以空处应用动词不定式的被动式作结果状语，后接省略引导词that的宾语从句，从句主语“所有的票”all the tickets，结合“已经”可知，从句应用过去完成时，表示到过去某一时间动作已经完成，即had been，“卖光”sold out；或者从句使用“没有票”no ticket作主语，从句使用一般过去时描述过去的一般状态，be动词使用was，表语“可获得，可得到”available。故填to be told no ticket was available/ all the tickets had been sold out。 48．他逐渐明白了经理在会上说的话。 He gradually understood at the meeting. 【答案】what the manager had said 【详解】考查宾语从句。空处表示“经理在会上说的话”，应用what引导宾语从句，作understood的宾语，“经历”the manager，“说”say，what表示“所……的”，作say的宾语，根据句中understood可知，主句使用一般过去时，从句动作发生在主句动作之前，为“过去的过去”，应用过去完成时，即had said。故填what the manager had said。 49．他承认考试作弊了。 He admitted in the exam. 【答案】cheating/ having cheated/ that he had cheated 【详解】考查动词。根据中文提示可知，表示“他承认考试作弊了”可翻译为He admitted cheating in the exam，其中admit doing，表“承认做某事”，为固定搭配；这里也可用having cheated，为动名词的完成式，强调非谓语动词在谓语动词前发生；本句也可翻译为He admitted that he had cheated in the exam，that he had cheated in the exam为宾语从句，时态用过去完成时，表示从句动作在主句谓语动词之前发生。故填cheating或having cheated或that he had cheated。 50．She stayed in bed . 她遵照医嘱卧床休息。 【答案】as the doctor had told her 【详解】考查名词、动词和方式状语从句。根据中文提示可知，空处表示“遵照医嘱”，即“按照医生吩咐她的”，可用意为“按照”的从属连词as引导方式状语从句，结合“stayed”可知，从句描述的行为发生在过去的过去，时态应用过去完成时，从句的主语“医生”用名词the doctor，谓语“吩咐”可用动词had told，宾语“她”用代词her。故填as the doctor had told her。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$ Unit 1 RELATIONSHIPS 过去完成时 一、单项选择 1．When Jim finally got to the cinema last night after dealing with the unexpected traffic accident on the way, the film _______ already _______. A．has; started B．had; started C．was; starting D．would; start 2．By the 10th century, Old English ________ the official language of England. A．became B．had become C．has become D．will become 3．By the end of last year, they ________ three bridges over the river. A．have built B．had built C．built D．were building 4．Alex ______ tea culture for many years before he came to China in 2023. A．studies B．studied C．had studied D．was studying 5．— Was Grandpa glad to see his old friends at the alumni gathering yesterday?   — Yes, he was. He ______ his old friends for years. A．hasn’t seen B．hadn’t seen C．didn’t see D．wouldn’t see 6．By the time the city’s new environmental policies were enforced last month, most factories ______ the required upgrades to their waste treatment systems, ensuring compliance with the law. A．completed B．have completed C．will complete D．had completed 7．Mary wanted to see Miss Sun off at the airport, but when she arrived there, she was told that Miss Sun ________. A．had left B．was leaving C．has left D．would leave 8．It was the first time that he ________ with a host family. A．lived B．had lived C．lives D．has lived 9．Mrs. Jones was annoyed that the sweeping machine she ________ was out of order again. A．had it repaired B．was repairing C．repaired D．had had repaired 10．When Robert got to the third floor, he found that he didn’t take his keys, and then remembered he _______ them in the car. A．was leaving B．had left C．would leave D．had been leaving 11．It was the second time that she ______ Mount Everest with her teammates. A．had climbed B．has climbed C．would climb D．climbed 12．By the time we arrived, the meeting ______ for half an hour. A．is on B．has been on C．was on D．had been on 13．The student, when asked why she ______ the rules during the exam, remained silent and refused to answer. A．had broken B．broke C．breaks D．was breaking 14．By the time he moved to Vienna, Ludwig van Beethoven ______ a reputation as a wonderful young musician. A．enjoyed B．was enjoying C．has enjoyed D．had enjoyed 15．The detox was more difficult to tolerate than I ________. A．had expected B．expected C．was expected D．were expected 16．I ________ to visit you last Friday, but I didn’t, for I had something urgent to deal with then. A．has planned B．had planned C．planned D．was planned 17．He ______ away without a word before I______ something. A．would go; said B．had gone; said C．had gone; say D．went; would say 18．I found the lecture hard to follow because it ________ when I arrived. A．had started B．started C．would start D．was starting 19．Tom_________of visiting his grandmother, but the bad weather made him change his mind. A．has thought B．thought C．had thought D．is thinking 20．It was the fourth time that Mr Smith ______ the Summer Palace. A．has visited B．visited C．visits D．had visited 二、语法填空 21．Luckily, the parents (put) away all the clothes before it rained. 22．It was the fourth time that we (argue) with the dealer. 23．The book (write) by a famous author before it was published. 24．By the time he was twelve, Edison (build) his own chemistry lab. 25．He (make) up his mind when George came and told him something new. (用适当的词填空) 26．As a young boy of a poor family, he （experience）many hardships before he moved to London. 27．It was the third time that she (come) to this mountain to see the children. 28．He, up to then, (find) a good subject to write about. 29．He (roll) up his jeans, apparently waiting in the pond. 30．It (be) possible but not easy to buy single copies of newspapers before 1830. 31．He (intend) to go, but on second thoughts, he gave up the idea. 32．Everything in my childhood crowded into my mind as if they (happen) yesterday. 33．By the end of last term we (finish) the book. 34．I got up at 8:00 this morning, and I (sleep) for ten hours. 35．He (work) in the store for five years before he moved here. 36．After visiting many fancy restaurants, she declared this bowl of noodles to be the best thing she (eat) in China ever. 37．The downturn hit the real estate firm where she (work)for ten years as an office manager. 38．We (seek) a solution to the problem before the manager put forward a better one. 39．As far as I know, he (survive) on a small bottle of water in the desert before he was found. 40．By the time my mother came back from the work, my sister and I (cook) supper and were waiting for her at the table. （用所给词的适当形式填空） 三、完成句子 41．They are going to hold a party next Sunday.（改为过去完成时） 42．医生告诉我，我的膝伤已经康复，或许可以进行一些适度的锻炼。 My doctor told me I my knee injury and could possibly take some moderate exercise. (recover) 43．汤姆原本打算参加聚会，但他另有事务缠身。 Tom the party, but he was otherwise engaged. (intend) 44．会议结束时，她已经专心起草提案超过三个小时了。 By the time the meeting ended, she drafting the proposal for over three hours. 45．考虑到你已经尽力了，我们决定认可你的工作。 , we decided to recognize your work. 46．Since 1958 he had been devoted to aerospace science and research and the cause of China's aerospace. 他于1958年起献身于航空航天研究工作, 为中国的航天事业做出巨大的贡献。 47．他急急忙忙赶到售票处，却被告知票已经被卖光了。 He hurried to the ticket office, only . 48．他逐渐明白了经理在会上说的话。 He gradually understood at the meeting. 49．他承认考试作弊了。 He admitted in the exam. 50．She stayed in bed . 她遵照医嘱卧床休息。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$