Unit 8 Safe and sound 语法Grammar 过去进行时-2025-2026学年译林版八年级英语上册单元练习

班级 姓名 学号 分数 Unit 8 Safe and sound 过去进行时 （时间：60分钟，满分：100分） 1、 单项选择(本大题共30小题，每小题2分，共60分) 1．— Is there anything wrong, Bob? You looked worried. — Oh, nothing much. In fact, I ________ of my coming exams. A．am thinking B．was thinking C．thought D．have thought 2．Samuel ________ in the park when they saw the poor man. A．are walking B．is walking C．were walking D．was walking 3．Eric’s mom ________ dinner while his dad was repairing the car when the rainstorm came. A．made B．was making C．has made D．is making 4．—Jane, I called you last night but nobody answered. —Oh, my parents and I ________ a walk in the park at that time. A．are taking B．were taking C．have taken D．will take 5．—You look upset. What happened? —I was talking with my deskmate ______ the teacher came over to me. Bad luck! A．while B．when C．so D．because 6．While Lily was sleeping, Linda ________ Jane with her homework. A．helps B．helped C．was helping D．has helped 7．Tom was swimming while I ________ my homework. A．do B．did C．doing D．was doing 8．I ________ about my grandpa when my phone rang. It was him! A．think B．was thinking C．will think D．am thinking 9．Some exchange students ________ with their host families this time yesterday. A．were chatting B．will chat C．are chatting D．chatted 10．Helen was reading in the study ________ her mother came in. A．while B．though C．when D．whether 11．—When did the classroom have a power cut? —This morning, while we ________ a physics lesson. A．are having B．have C．were having D．had 12．—Oh, boy! How can you hit a tree on your way home? —Well, I ________ on the phone at that time. A．talked B．will talk C．am talking D．was talking 13．Frank ________ the floor when I went to see him. A．sweeps B．swept C．was sweeping D．is sweeping 14．—Didn’t you hear the doorbell ringing? —Sorry. I ________ computer games with my earphones on. A．am playing B．was playing C．will play D．played 15．—Yesterday morning I didn’t see you. Where were you? —I________ food for the picnic on the West Hill Farm at that time. A．will prepare B．am preparing C．prepared D．was preparing 16．—Could you tell me what he said just now? —Sorry, I_________ what was happening outside. A．thought B．think C．was thinking D．to think 17．—What will the weather be like tomorrow? —Sorry, I didn’t watch the weather report just now. I ________ a talk show on TV. A．was watching B．am watching C．would watch D．will watch 18．Sorry, I missed your phone. I ________ and I didn’t hear it. A．was cooking B．am cooking C．cook D．have cooked 19．Sarah with her friends ________ food in the supermarket at that time. A．were buying B．was buying C．were ordering D．was ordering 20．Mike was travelling by bus ________ he heard a loud crash. A．while B．when C．after D．as soon as 21．—Linda, I called you up just now, but nobody answered. —Sorry, I didn’t hear that. I ________ playing the piano. A．practice B．will practice C．practiced D．was practicing 22．While the young man ________ in China, he picked up some Chinese. A．stayed B．is staying C．was staying D．to stay 23．When the teacher got into the classroom at 6 p.m. yesterday, George ________ the floor. A．cleans B．cleaned C．is cleaning D．was cleaning 24．—Why didn’t you go to play football with us yesterday afternoon? —I ________ my mother with the housework then. A．helped B．was helping C．am helping D．help 25．—Did you see Jenny? She just came back from Nanjing. —Yes. But she ________ someone, so I said nothing to her and went away. A．phones B．was phoning C．is phoning D．phoned 26．Nancy and Dora ________ the dishes while their mother was making her bed. A．wash B．were washing C．will wash D．have washed 27．— Have you watched the news I shared with you on WeChat? — Not yet. I ________ for information on my project the whole morning. A．was searching B．search C．have searched D．will search 28．When it suddenly rained, I ________ the ball with my friends in the park. A．kick B．kicked C．am kicking D．was kicking 29．—Tom, what were your parents doing at 8:00 last night? —My mother was reading ________ my father was playing computer games. A．while B．when C．as D．since 30．—Did you teach those exchange students to learn Chinese this morning?   —Oh, no! I ________ a report. A．wrote B．was writing C．am writing D．would write 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．—Why weren’t you in the room at 10 o’clock this morning, Betty? —Oh, I (talk) with my grandma in the garden. 32．When Mum came home, Danny (play) the piano in the living room. 33．—Did you see your brother go out? —No, I (watch) a football match. 34．— Why didn’t she stop him going out? — Sorry, but she (write) a letter and didn’t notice him go out. 35．I found a wallet lying in the corner when I (sweep) the floor yesterday. 36．I (ring) my friend Wendy at that time last night. 37．Jane and her boyfriend (chat) with me at my home then. 38．The Greens (discuss) something in the living room when I went to visit them yesterday. 39．I saw lots of people waiting for the tickets while (pass) the cinema. 40．When I got home, my pet dog (lie) on the floor, dead. 41．—I went to visit you yesterday evening, but you weren’t in. Where were you then? —Oh, I (enjoy) a musical in the theatre. 42．It (rain) heavily when we arrived at the airport. 43．We (eat) dinner in the kitchen when we heard the news. 44．Daniel (do) his homework when his mother came home work yesterday evening. 45．Mary (go) over her lessons from six to seven last night. 46．The Whites (visit) their friends at 6 pm yesterday. 47．Tom (fight) with his deskmate when the teacher came in the classroom. 48．I （walk）along the street when suddenly I heard footsteps behind. 49．We （ring）someone to come and help when you saw us. 50．They (throw) balls when I saw them on the road. 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 $ 班级 姓名 学号 分数 Unit 8 Safe and sound 过去进行时 （时间：60分钟，满分：100分） 1、 单项选择(本大题共30小题，每小题2分，共60分) 1．— Is there anything wrong, Bob? You looked worried. — Oh, nothing much. In fact, I ________ of my coming exams. A．am thinking B．was thinking C．thought D．have thought 【答案】B 【详解】句意：——鲍勃，有什么问题吗？你看起来很担心。——哦，没什么。事实上，我刚刚在考虑即将到来的考试。 考查时态。am thinking现在进行时；was thinking过去进行时；thought过去式或过去分词；have thought现在完成时。根据“Is there anything wrong, Bob? You looked worried.”以及选项可知，此处应用过去进行时，表示对话发生之前刚刚还在进行的动作。故选B。 2．Samuel ________ in the park when they saw the poor man. A．are walking B．is walking C．were walking D．was walking 【答案】D 【详解】句意：当他们看到那个可怜的人时，Samuel正在公园里散步。 考查时态。are walking现在进行时，主语是复数；is walking现在进行时，主语是单数；were walking过去进行时，主语是复数；was walking过去进行时，主语是单数。当when引导的时间状语从句表示过去某个时间点时，主句用过去进行时，表示该时间点正在进行的动作。主语Samuel是第三人称单数，因此需用was walking。故选D。 3．Eric’s mom ________ dinner while his dad was repairing the car when the rainstorm came. A．made B．was making C．has made D．is making 【答案】B 【详解】句意：暴雨来临时，艾瑞克的妈妈正在做饭，爸爸正在修理汽车。 考查动词时态。根据“...while his dad was repairing the car when the rainstorm came.”可知此处应使用过去进行时，表示妈妈正在做饭，其结构为was/were doing。故选B。 4．—Jane, I called you last night but nobody answered. —Oh, my parents and I ________ a walk in the park at that time. A．are taking B．were taking C．have taken D．will take 【答案】B 【详解】句意：——Jane，我昨晚给你打电话，但没有人接。 ——哦，我和父母那时正在公园里散步。 考查动词的时态。根据时间状语“at that time”可知句子应用过去进行时。故选B。 5．—You look upset. What happened? —I was talking with my deskmate ______ the teacher came over to me. Bad luck! A．while B．when C．so D．because 【答案】B 【详解】句意：——你看起来很沮丧。发生了什么事？——我正在和同桌说话，这时老师向我走来。真倒霉！ 考查连词辨析。while与……同时；when当……时候；so所以；because因为。根据“I was talking with my deskmate...the teacher came over to me”可知，前后是时间关系，从句是一般过去时，主句是过去进行时，这里应用when引导时间状语从句，故选B。 6．While Lily was sleeping, Linda ________ Jane with her homework. A．helps B．helped C．was helping D．has helped 【答案】C 【详解】句意：当Lily正在睡觉时，Linda正在帮Jane做她的家庭作业。 考查时态。根据“While Lily was sleeping”可知，此处强调主句和从句两个动作同时进行，所以应用过去进行时（was/were doing）。故选C。 7．Tom was swimming while I ________ my homework. A．do B．did C．doing D．was doing 【答案】D 【详解】句意：汤姆在游泳，而我在做作业。 考查时态。根据“Tom was swimming while I ... my homework.”可知，强调在过去的某个时间点，正在发生的动作，用过去进行时。故选D。 8．I ________ about my grandpa when my phone rang. It was him! A．think B．was thinking C．will think D．am thinking 【答案】B 【详解】句意：当我的电话铃响的时候，我正在想爷爷。是他！ 考查时态。根据“when my phone rang”可知是当电话响的时候正在想爷爷，故主句用过去进行时was/were doing。故选B。 9．Some exchange students ________ with their host families this time yesterday. A．were chatting B．will chat C．are chatting D．chatted 【答案】A 【详解】句意：在昨天的这个时候，一些交换生正在和他们的寄宿家庭聊天。 考查动词的时态。根据时间状语“this time yesterday”可知句子应用过去进行时，即was/were doing的结构。故选A。 10．Helen was reading in the study ________ her mother came in. A．while B．though C．when D．whether 【答案】C 【详解】句意：海伦妈妈进来时，她正在书房里看书。 考查连词辨析。while当……的时候（从句的谓语动词应是延续性动词）；though虽然；when在……时候（从句的谓语动词可以是延续性动词或短暂性动词）；whether是否。根据“Helen was reading in the study...her mother came in.”可知，海伦正在书房看书，这时她妈妈进来了。came是短暂性动词，空处应用when，引导时间状语从句。故选C。 11．—When did the classroom have a power cut? —This morning, while we ________ a physics lesson. A．are having B．have C．were having D．had 【答案】C 【详解】句意：——教室什么时候断电了？——今天早上，我们正在上物理课的时候。 考查过去进行时。are having现在进行时；have一般现在时；were having过去进行时； had一般过去时。根据“while we...a physics lesson.”可知，物理课正在进行的过程中断电了。又根据问句“did”可知是发生在过去，应用过去进行时。故选C。 12．—Oh, boy! How can you hit a tree on your way home? —Well, I ________ on the phone at that time. A．talked B．will talk C．am talking D．was talking 【答案】D 【详解】句意：——哦，孩子！你怎么能在回家的路上撞到树？——嗯，我当时正在打电话。 考查时态。根据“How can you hit a tree on your way home”以及“at that time”可知此处表示那时正在打电话，用过去进行时was/were doing。故选D。 13．Frank ________ the floor when I went to see him. A．sweeps B．swept C．was sweeping D．is sweeping 【答案】C 【详解】句意：我去看弗兰克时，他正在扫地。 考查动词时态。根据“when I went to see him”可知，此处表示过去某一时刻正在发生的动作，应用过去进行时。故选C。 14．—Didn’t you hear the doorbell ringing? —Sorry. I ________ computer games with my earphones on. A．am playing B．was playing C．will play D．played 【答案】B 【详解】句意：——你没听到门铃响吗？——对不起。我戴着耳机在玩电脑游戏。 考查过去进行时。根据“Didn’t you hear the doorbell ringing?”和“I...computer games with my earphones on.”可知，强调在过去的某个时间点正在发生的动作，用过去进行时。故选B。 15．—Yesterday morning I didn’t see you. Where were you? —I________ food for the picnic on the West Hill Farm at that time. A．will prepare B．am preparing C．prepared D．was preparing 【答案】D 【详解】句意：——昨天早上我没有看见你。你在哪呢？——我那时正在西山农场上为野餐准备食物。 考查过去进行时。根据“Yesterday morning I didn’t see you”和“at that time”可知句子应用过去进行时，说明过去某一时刻正在进行的动作，其谓语结构为：was/were+现在分词。故选D。 16．—Could you tell me what he said just now? —Sorry, I_________ what was happening outside. A．thought B．think C．was thinking D．to think 【答案】C 【详解】句意：——你能告诉我他刚才说了什么吗？——对不起，先生。我在想外面发生了什么。 考查动词时态。根据“what was happening outside”可知，我当时正在想外面发生的事情。故要用过去进行时。应填was thinking，故选C。 17．—What will the weather be like tomorrow? —Sorry, I didn’t watch the weather report just now. I ________ a talk show on TV. A．was watching B．am watching C．would watch D．will watch 【答案】A 【详解】句意：——明天天气怎么样？——对不起，我刚才没有看天气预报。我当时正在看电视上的脱口秀。 考查时态辨析。根据“Sorry, I didn’t watch the weather report just now.”可知，刚才的时候没有看天气预报，而是在那个时候看了脱口秀，故表达在过去某一时间点正在做的事，用过去进行时。故选A。 18．Sorry, I missed your phone. I ________ and I didn’t hear it. A．was cooking B．am cooking C．cook D．have cooked 【答案】A 【详解】句意：对不起，我错过了你的电话。我正在做饭，没听到。 考查动词时态。根据“I missed your phone. I...and I didn’t hear it.”可知，“来电话”是过去发生的事情，“做饭”是过去这一时刻说话者正在进行的动作，所以用过去进行时was doing结构表达。故选A。 19．Sarah with her friends ________ food in the supermarket at that time. A．were buying B．was buying C．were ordering D．was ordering 【答案】B 【详解】句意：那时莎拉和她的朋友们正在超市买食物。 考查过去进行时和动词辨析。were buying主语为复数的过去进行时，正在买；was buying主语为单数的过去进行时，正在买；were ordering主语为复数的过去进行时，正在点（酒菜等）；was ordering主语为单数的过去进行时，正在点（酒菜等）。“Sarah with her friends”中主语是“Sarah”，单数，with部分是状语，可以忽略不计，故用was。根据语境，在超市里应该是“买”食物。故选B。 20．Mike was travelling by bus ________ he heard a loud crash. A．while B．when C．after D．as soon as 【答案】B 【详解】句意：迈克正在乘公共汽车旅行，突然听到一声巨响。 考查连词辨析。while当……的时候，用于表示两个动作同时进行；when当……的时候，用于表示一件事发生的时候，另一件事突然发生；after在……之后；as soon as一……就……。根据句意，迈克正在乘公交车旅行的时候，突然听到了一声巨巨响，所以应该用when。故选B。 21．—Linda, I called you up just now, but nobody answered. —Sorry, I didn’t hear that. I ________ playing the piano. A．practice B．will practice C．practiced D．was practicing 【答案】D 【详解】句意：——Linda，我刚刚给你打电话，但是没有人接听。——对不起，我没有听到。我刚刚在练习弹钢琴。 考查时态。根据“I didn’t hear that. I...playing the piano.”可知，应是打电话的时候正在弹钢琴，应用过去进行时，结构为was/were+现在分词，主语是I，be动词用was。故选D。 22．While the young man ________ in China, he picked up some Chinese. A．stayed B．is staying C．was staying D．to stay 【答案】C 【详解】句意：当这个年轻人待在中国的时候，他学了一些中文。 考查过去进行时。根据“While the young man ... in China, he picked up some Chinese.”可知，此处应用过去相关的时态，while之后应用进行时，因此此处应用过去进行时。故选C。 23．When the teacher got into the classroom at 6 p.m. yesterday, George ________ the floor. A．cleans B．cleaned C．is cleaning D．was cleaning 【答案】D 【详解】句意：昨天下午6点，当老师走进教室时，乔治正在打扫地板。 考查时态。根据“When the teacher got into the classroom at 6 p.m. yesterday”可知昨天下午6点，他正在打扫地板，用过去进行时was/were doing。故选D。 24．—Why didn’t you go to play football with us yesterday afternoon? —I ________ my mother with the housework then. A．helped B．was helping C．am helping D．help 【答案】B 【详解】句意：——昨天下午你为什么不和我们去踢足球？——那时我正在帮我妈妈做家务。 考查动词的时态。由“then”可知，本句强调的是在对方邀请“我”一起踢足球的时候，“我”正在帮妈妈做家务。表达过去某一时间点正在进行的动作时，采用过去进行时。故选B。 25．—Did you see Jenny? She just came back from Nanjing. —Yes. But she ________ someone, so I said nothing to her and went away. A．phones B．was phoning C．is phoning D．phoned 【答案】B 【详解】句意：——你看到珍妮了吗？她刚从南京回来。——看见了。但她正在给某人打电话，所以我什么也没对她说就走了。 考查时态。根据“But she ... someone, so I said nothing to her and went away.”可知，是指她正在给某人打电话，所以我什么都没对她说就走了，空处应用过去进行时was/were doing，主语是she，be用was。故选B。 26．Nancy and Dora ________ the dishes while their mother was making her bed. A．wash B．were washing C．will wash D．have washed 【答案】B 【详解】句意：南希和朵拉在洗盘子，她们的妈妈在整理床铺。 考查动词时态。根据while以及was making可知，主句表示过去的某一段时间正在发生的事情，用过去进行时，故选B。 27．— Have you watched the news I shared with you on WeChat? — Not yet. I ________ for information on my project the whole morning. A．was searching B．search C．have searched D．will search 【答案】A 【详解】句意：——你看了我在微信上和你分享的新闻吗？——还没有。我整个上午都在寻找我项目的信息。 考查时态。根据“I…for information on my project the whole morning.”可知，我整个上午都在寻找我项目的信息，表示过去某一阶段一直在做某事，应用过去进行时态，结构为“was/were+动词现在分词”，主语为I，be动词用was。故选A。 28．When it suddenly rained, I ________ the ball with my friends in the park. A．kick B．kicked C．am kicking D．was kicking 【答案】D 【详解】句意：突然下雨时，我正和朋友们在公园里踢球。 考查动词时态。根据“When it suddenly rained, I ... the ball with my friends in the park.”可知，此处表示过去某一时刻正在发生的事情，应该用过去进行时。故选D。 29．—Tom, what were your parents doing at 8:00 last night? —My mother was reading ________ my father was playing computer games. A．while B．when C．as D．since 【答案】A 【详解】句意：——汤姆，你父母昨晚8点在做什么？——我妈妈在读书，而我爸爸在玩电脑游戏。 考查连词辨析。while与……同时，当……的时候；when当……的时候；as因为，由于；since自从。根据“Tom, what were your parents doing at 8:00 last night?”可知，此处询问的是过去某个时间点正在发生的动作，且空后从句为过去进行时，是延续性动词，主句与从句两个动作同时正在发生，用while。故选A。 30．—Did you teach those exchange students to learn Chinese this morning?   —Oh, no! I ________ a report. A．wrote B．was writing C．am writing D．would write 【答案】B 【详解】句意：——今天早上你教那些交换生学中文了吗？——哦，没有！我在写报告。 考查动词时态。根据“Did you teach those exchange students to learn Chinese this morning?”可知，此处表示过去在某一时间段或某一段时间内正在发生或进行的动作，所以应用过去进行时。故选B。 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．—Why weren’t you in the room at 10 o’clock this morning, Betty? —Oh, I (talk) with my grandma in the garden. 【答案】was talking 【详解】句意：——贝蒂，今天早上10点你为什么不在房间里？——哦，我正在花园里和我的奶奶聊天。根据“Why weren’t you in the room at 10 o’clock this morning, Betty?”可知，此处表示在过去某个时间正在做某事，用过去进行时，主语I是第一人称单数，be动词用was。故填was talking。 32．When Mum came home, Danny (play) the piano in the living room. 【答案】was playing 【详解】句意：当妈妈回家时，丹尼正在客厅弹钢琴。根据“When Mum came home”可知，这里描述的是过去某个时间点正在发生的动作，即妈妈回家时丹尼正在弹钢琴，所以应该使用过去进行时。过去进行时的构成是“was/were+现在分词”，主语Danny是第三人称单数，所以be动词用was，play的现在分词是playing。故填was playing。 33．—Did you see your brother go out? —No, I (watch) a football match. 【答案】was watching 【详解】句意：——你刚有看到你哥哥出去吗？——没有，我正在看足球赛。结合语境及Did可知在讲述过去的事情，且强调在过去时间正在发生的动作，应用过去进行时，其结构为：was/were+现在分词。主语为I，be动词应用was；动词watch的现在分词为watching。故填was；watching。 34．— Why didn’t she stop him going out? — Sorry, but she (write) a letter and didn’t notice him go out. 【答案】was writing 【详解】句意：——她为什么不阻止他出去？——对不起，但是她正在写信，没有注意到他出去。write“写”，根据“but she...a letter and didn’t notice him go out”可知此处表示他出去的时候她正在写信，用过去进行时was/were doing，主语是she，be动词用was。故填was writing。 35．I found a wallet lying in the corner when I (sweep) the floor yesterday. 【答案】was sweeping 【详解】句意：昨天扫地的时候，我在角落里发现了一个钱包。此处表示当某事正在进行的时候，另一件事发生了，结合“yesterday”可知从句用过去进行时，其结构为was/were doing，主语“I”后用be动词was，sweep的现在分词形式为sweeping。故填was sweeping。 36．I (ring) my friend Wendy at that time last night. 【答案】was ringing 【详解】句意：昨晚的那个时候，我正在给我的朋友温迪打电话。根据“at that time last night”可知，此处介绍在过去的某个时刻正在发生的事情，用过去进行时was/were doing的结构，主语I是第一人称，助动词用was，故填was ringing。 37．Jane and her boyfriend (chat) with me at my home then. 【答案】were chatting 【详解】句意：那时Jane和她的男朋友正在我家和我聊天。chat“聊天”，是一个动词。根据句中“then”可知，这里表示过去正在进行的动作，应用过去进行时态，结构是was/were+动词的现在分词。主语Jane and her boy friend是复数，be动词用were；chat的现在分词是chatting。故填were chatting。 38．The Greens (discuss) something in the living room when I went to visit them yesterday. 【答案】were discussing 【详解】句意：昨天我去拜访格林一家时，他们正在客厅里讨论一些事情。根据“when I went to visit them yesterday”可知，此处强调在过去的某个时间点正在发生的动作，用过去进行时，主语是复数，be动词用were。故填were discussing。 39．I saw lots of people waiting for the tickets while (pass) the cinema. 【答案】passing 【详解】句意：我路过电影院时看到许多人在等票。根据“I saw lots of people waiting for the tickets while...the cinema.”可知，此处是指当我路过电影院时，需用过去进行时(was/were doing)；当while引导的时间状语从句的主语和主句主语保持一致时，并且从句中含有be动词时，从句的主语和be可同时省略。故填passing。 40．When I got home, my pet dog (lie) on the floor, dead. 【答案】was lying 【详解】句意：当我回到家时，我的宠物狗躺在地板上，已经死了。根据“got”可知，句子是过去时态；这里表示狗“正躺在地板上”，因此这里用过去进行时，主语是单数，be动词是was，lie的现在分词是lying，故填was lying。 41．—I went to visit you yesterday evening, but you weren’t in. Where were you then? —Oh, I (enjoy) a musical in the theatre. 【答案】was enjoying 【详解】句意：——昨晚我去看你，但是你不在。你那时候在哪里？——噢，我那时候正在剧院享受音乐剧。根据语境，是在询问过去某个时间段在做的事情，应该用过去进行时，结构为was/were+doing，主语为I，be动词用was。故填was enjoying。 42．It (rain) heavily when we arrived at the airport. 【答案】was raining 【详解】句意：我们到达机场时雨下得很大。rain“下雨”，动词。根据“when we arrived at the airport.”可知此处是指过去正在发生的事情，应用过去进行时，主语是单数，be动词用was。故填was raining。 43．We (eat) dinner in the kitchen when we heard the news. 【答案】were eating 【详解】句意：当我们听到这个消息时，我们正在厨房吃晚饭。根据句意和句子中的“when”可知，这是用when引导的时间状语从句，表示当一个动作正在发生时，另一个动作发生了。此时含有持续时间较短动词的句子用一般过去时，含有持续时间较长动词的句子用过去进行时，所以此处“吃晚饭”用过去进行时。故填were eating。 44．Daniel (do) his homework when his mother came home work yesterday evening. 【答案】was doing 【详解】句意：当他妈妈昨天晚上下班回家时，丹尼尔正在做他的家庭作业。根据“Daniel…his homework when his mother came home work yesterday evening.”可知，这里要用过去进行时was/were doing，主语是Daniel，故be动词用was。故填was doing。 45．Mary (go) over her lessons from six to seven last night. 【答案】was going 【详解】句意：玛丽昨晚六点到七点复习功课。go over“复习”。根据“from six to seven last night”可知，此处指过去某一阶段一直在做某事，应为过去进行时，结构是was/were doing，主语是第三人称单数，be动词用was。故填was going。 46．The Whites (visit) their friends at 6 pm yesterday. 【答案】were visiting 【详解】句意：昨天下午6点，怀特夫妇正在拜访他们的朋友。visit“拜访”，动词。根据“at 6 pm yesterday”可知，此处指过去某一时刻正在发生的动作，应为过去进行时，结构是was/were doing，主语是人称复数，be动词用were。故填were visiting。 47．Tom (fight) with his deskmate when the teacher came in the classroom. 【答案】was fighting 【详解】句意：当老师走进教室时，汤姆正在和他的同桌打架。根据“...when the teacher came in the classroom.”可知，老师进来的时候，他们正在打架，此处应用过去进行时“was/were+动词过去分词”，主语是Tom，be动词用was，故填was fighting。 48．I （walk）along the street when suddenly I heard footsteps behind. 【答案】was walking 【详解】句意：我正沿着街道走着，突然听到身后有脚步声。分析句子，根据“when suddenly I heard footsteps behind.”可推断此处表达“当时我正沿着街道走着”，故应为过去进行时，构成为was/were +doing，主语为I，故be动词应用was。故填was walking。 49．We （ring）someone to come and help when you saw us. 【答案】were ringing 【详解】句意：当你看到我们时，我们正在给某人打电话来帮忙。根据“when you saw us”可知看见我们的时候，我们正在打电话，用过去进行时，主语是we，be动词用were。故填were ringing。 50．They (throw) balls when I saw them on the road. 【答案】were throwing 【详解】句意：当我在路上看到他们时，他们正在投球。throw“扔”，动词；根据“when I saw them on the road.”可知，“投球”是“我”过去看见他们时他们正在做的事情，应用过去进行时，主语“they”为复数，谓语结构为were doing。故填were throwing。 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 $