Unit7 Space exploration 重点语法：过去进行时精讲精练40题-2025-2026学年八年级英语下册重难点讲练全攻略（沪教版）

**基本信息** 以“定义-规则-对比-易错”四维架构系统梳理过去进行时，40题精准覆盖中考高频考法，助力语言能力与思维品质提升。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |语法知识精讲|6大表格（含when/while对比、易混时态辨析）|when接短暂性动词/while接延续性动词，过去进行时表过程vs一般过去时表结果，瞬间动词进行时表将来|从基础构成（was/were+doing）到特殊用法（时间标志词、分词变化），再到重难点突破（连词用法、易混对比），形成递进式知识链| |语法知识精练|40题（含时间标志词、when/while场景题）|通过具体语境判断动作持续性，结合时间状语锁定时态|每题对应精讲模块知识点，强化“概念-规则-应用”的思维迁移|

2025-2026学年一线教师制作新教材英语同步精品系列资料，名师遴选！ 2025-2026学年一线教师制作新教材英语同步精品系列资料，名师遴选！ 学校:___________姓名：___________班级：___________考号：___________ Unit7 Space exploration 重点语法：过去进行时精讲精练40题 语法知识精讲 表 1：基本定义、构成、标志词 项目 知识点详解 含义 表示过去某个时刻 / 某段时间正在做的动作；过去一段时间持续进行的动作。 1. 过去某一时间点正在发生 2. 过去某段时期持续进行 3. 过去某事发生时，另一件事正在进行 基本结构 肯定：主语 + was/were + doing (现在分词) 否定：主语 + was/were + not + doing 疑问：Was/Were + 主语 + doing? be 动词选用 单数主语 (I/he/she/it)+was；复数主语 (we/you/they)+were 常用时间标志 at 8:00 yesterday、at that time、then、from 7 to 9 last night、when/while 引导过去动作时 表 2：句式变化举例 句式 例句 中文翻译 肯定句 He was watching TV at nine last night. 昨晚九点他正在看电视。 否定句 They weren’t playing football then. 那时他们没在踢足球。 一般疑问 Were you reading books at this time yesterday? 昨天这个时候你在看书吗？ 特殊疑问 What was she doing when it rained? 下雨的时候她正在做什么？ 表 3：现在分词 (doing) 变化规则 变化类型 规则 举例 一般情况 直接 + ing work→working、play→playing 以不发音 e 结尾 去 e+ing write→writing、make→making 重读闭音节（辅 + 元 + 辅） 双写末尾辅音 + ing run→running、sit→sitting、stop→stopping ie 结尾 变 ie 为 y+ing lie→lying、die→dying 表 4：when & while 用法（重难点） 连词 用法 句式搭配 例句 when 后接短暂性动词（过去式），瞬间动作 when + 一般过去时，主句过去进行时 I was cooking when the phone rang. while 后接延续性动词（过去进行时），长动作 while + 过去进行时，主句过去进行时 / 一般过去时 While she was reading, I was cleaning. 表 5：过去进行时 vs 一般过去时（易混对比） 时态 侧重点 例句 过去进行时 过去正在做（过程，未结束） I was doing homework at 7 yesterday.（七点正在写） 一般过去时 过去做完了（动作已结束） I did homework yesterday.（昨天写完了作业） 表 6：高频考点易错点 易错点 正确用法 错误示例 瞬间动词无进行时 come/go/leave 用过去进行表即将动身 ✓ He was leaving. ✗ He was leaving yesterday. 过去某一具体点钟必用进行 at + 具体时刻 + 过去时间用 was/were doing ✓ Were you sleeping at midnight? 语法知识精练 1．—I passed the garden at 4 o’clock yesterday afternoon and you ________ flowers there. —I enjoy working in the garden. A．were watering B．watered C．has watered D．is watering 2．—What was Tom doing when you called him? —He ________ with his friend on the phone. A．talks B．talked C．is talking D．was talking 3．—I didn’t see you at school yesterday afternoon. Where were you? —I ________ some old clothes for the children in poor areas with my mom. A．prepare B．will prepare C．was preparing D．had prepared 4．My cousin saw a traffic accident while he ________ for the bus at the bus station. A．was waiting B．waited C．waits D．is waiting 5．—I called you at 8 last night. But there was no reply. —Oh, we ________ a party for my grandma in the countryside. A．have B．had C．were having D．are having 6．—Helen, I didn’t see you in the classroom at five yesterday afternoon. —Oh, I ________ singing at that time. A．will practise B．was practising C．have practised D．am practising 7．—Were you at home at 9:00 last night? —Yes, I ________ a movie at that time. A．watch B．watched C．am watching D．was watching 8．—I called you at 9 o’clock last night, but you didn’t answer. —Oh, sorry. I ________ a report for the meeting and didn’t hear the phone. A．will write B．am writing C．wrote D．was writing 9．—Why didn’t you answer my WeChat message at 8:30 last night? —Oh, I ________ my piano lesson at that time. A．take B．took C．am taking D．was taking 10．—What happened to your mother? —She cut herself carelessly while she ________ breakfast. A．prepares B．is preparing C．was preparing D．has prepared 11．They were ________ the high jump when the teacher came to the playground. A．practicing B．practiced C．practices D．practice 12．Because of the bad weather last week, Grade Seven students ________ a special test at home at this time yesterday. A．take B．are taking C．were taking D．have taken 13．When the teacher came into the classroom, I ________ the class project with my team members. A．discuss B．discussed C．was discussing D．will discuss 14．My neighbor, Mr. Wang, _______ his dog for a walk when I saw him yesterday evening. A．takes B．took C．was taking D．is taking 15．When the earthquake happened, many people ________ in the building. A．work B．worked C．are working D．were working 16．—Did you see the accident yesterday? —Yes. I ________ when it happened. A．walk B．walked C．was walking D．have walked 17．—Why didn’t you answer my phone? —Sorry, I ________ a shower at that time. A．take B．took C．was taking D．am taking 18．— Did you see the car accident just now? — No, I ________ at that time. A．read B．was reading C．have read D．reads 19．—Why didn’t you answer my call? —I ________ in the shower. A．was taking B．took C．am taking D．take 20．I was folding my clothes while my mother ________ in the kitchen. A．cooked B．cooks C．cooking D．was cooking 21．—What were you doing at this time yesterday? —I _______ my grandmother with housework. A．help B．am helping C．was helping D．helped 22．The boy ________ the mountains when he saw a huge eagle. A．climbs B．climbed C．was climbing D．is climbing 23．—Why were you angry? —Because they _________ too much noise. A．are making B．were making C．make D．have made 24．My little sister ________ toys while I was reading books. A．is playing B．plays C．played D．was playing 25．—What ________ you ________ when the teacher came into the classroom? —I was reading an English storybook. A．do; do B．did; do C．were; doing D．are; doing 26．While my sister ________ TV, I was listening to music in the living room. A．watches B．watched C．were watching D．was watching 27．When the teacher passed by the hall, the students ________ for the graduation party. A．has prepared B．will prepare C．were preparing D．is preparing 28．— I called you at 8 o’clock last night, but nobody answered. — Oh, I ________ a shower at that time. A．took B．was taking C．am taking D．will take 29．—Why didn’t you answer my phone call? —Sorry, I ________ a shower. The water was too loud. A．took B．was taking C．have taken D．will take 30．When Ben ________ to school, he saw a traffic accident on the road. A．walked B．is walking C．was walking D．walks 31．I ________ TV when my mother came back. A．watch B．watched C．am watching D．was watching 32．—Where were you at 8 yesterday evening? —I ________ a movie in a city cinema with my wife. After that, we went home. A．was watching B．will watch C．watched D．is watching 33．My mother _______ clothes at seven o’ clock yesterday evening. A．washes B．washed C．was washing D．is washing 34．When I got Mike’s text message, I ________ a movie with my family. A．watch B．watched C．was watching D．am watching 35．— Tom, why didn’t you come to our group discussion after school yesterday? — Oh, I ________ the classroom at that time. A．clean B．will clean C．am cleaning D．was cleaning 36．When Mr. Smith walked in, the students ________ the classroom for the art festival. A．decorate B．were decorating C．decorated D．are decorating 37．—Why was there nobody in the classroom at 3:00 yesterday afternoon? Where did the students go? —They ________ a class about environmental protection in the school hall. A．had B．will have C．have had D．were having 38．—Did you hear the boy singing? —Sorry, I didn’t notice that. I ________ some cute characters with Perler beads (拼豆). A．makes B．is making C．will make D．was making 39．—Look! Someone ________ the classroom. It’s so clean.   —Well, it wasn’t me. I ________ outside just now. A．has cleaned; was playing B．cleaned; played C．is cleaning; was playing D．was cleaning; played 40．While my brother ________ his computer, my father came home from work. A．repaired B．is repairing C．was repairing D．has repaired 2 同步新教材，周周有练习，月月有重点！ 5 同步新教材，周周有练习，月月有重点！ 学科网（北京）股份有限公司 $ 2025-2026学年一线教师制作新教材英语同步精品系列资料，名师遴选！ 2025-2026学年一线教师制作新教材英语同步精品系列资料，名师遴选！ 学校:___________姓名：___________班级：___________考号：___________ Unit7 Space exploration 重点语法：过去进行时精讲精练40题 语法知识精讲 表 1：基本定义、构成、标志词 项目 知识点详解 含义 表示过去某个时刻 / 某段时间正在做的动作；过去一段时间持续进行的动作。 1. 过去某一时间点正在发生 2. 过去某段时期持续进行 3. 过去某事发生时，另一件事正在进行 基本结构 肯定：主语 + was/were + doing (现在分词) 否定：主语 + was/were + not + doing 疑问：Was/Were + 主语 + doing? be 动词选用 单数主语 (I/he/she/it)+was；复数主语 (we/you/they)+were 常用时间标志 at 8:00 yesterday、at that time、then、from 7 to 9 last night、when/while 引导过去动作时 表 2：句式变化举例 句式 例句 中文翻译 肯定句 He was watching TV at nine last night. 昨晚九点他正在看电视。 否定句 They weren’t playing football then. 那时他们没在踢足球。 一般疑问 Were you reading books at this time yesterday? 昨天这个时候你在看书吗？ 特殊疑问 What was she doing when it rained? 下雨的时候她正在做什么？ 表 3：现在分词 (doing) 变化规则 变化类型 规则 举例 一般情况 直接 + ing work→working、play→playing 以不发音 e 结尾 去 e+ing write→writing、make→making 重读闭音节（辅 + 元 + 辅） 双写末尾辅音 + ing run→running、sit→sitting、stop→stopping ie 结尾 变 ie 为 y+ing lie→lying、die→dying 表 4：when & while 用法（重难点） 连词 用法 句式搭配 例句 when 后接短暂性动词（过去式），瞬间动作 when + 一般过去时，主句过去进行时 I was cooking when the phone rang. while 后接延续性动词（过去进行时），长动作 while + 过去进行时，主句过去进行时 / 一般过去时 While she was reading, I was cleaning. 表 5：过去进行时 vs 一般过去时（易混对比） 时态 侧重点 例句 过去进行时 过去正在做（过程，未结束） I was doing homework at 7 yesterday.（七点正在写） 一般过去时 过去做完了（动作已结束） I did homework yesterday.（昨天写完了作业） 表 6：高频考点易错点 易错点 正确用法 错误示例 瞬间动词无进行时 come/go/leave 用过去进行表即将动身 ✓ He was leaving. ✗ He was leaving yesterday. 过去某一具体点钟必用进行 at + 具体时刻 + 过去时间用 was/were doing ✓ Were you sleeping at midnight? 语法知识精练 1．—I passed the garden at 4 o’clock yesterday afternoon and you ________ flowers there. —I enjoy working in the garden. A．were watering B．watered C．has watered D．is watering 【答案】A 【详解】句意：——昨天下午4点我经过花园，那时你正在那里浇花。——我喜欢在花园里干活。 were watering过去进行时；watered一般过去时；has watered现在完成时；is watering现在进行时，句中“at 4 o’clock yesterday afternoon” 表示过去某个具体的时间点，强调在过去某一时刻正在进行的动作，需要用过去进行时，结构为“was/were +现在分词”。主语是“you”，对应的be动词用“were”，“water”的现在分词形式是“watering”，应填were watering。 2．—What was Tom doing when you called him? —He ________ with his friend on the phone. A．talks B．talked C．is talking D．was talking 【答案】D 【详解】句意：——当你给汤姆打电话时，他在做什么？——他正在和他的朋友通电话。 根据问句“What was Tom doing when you called him?”可知，询问的是过去打电话那个时刻正在进行的动作，答语时态应用过去进行时，结构为was/were+动词现在分词。应填was talking。 3．—I didn’t see you at school yesterday afternoon. Where were you? —I ________ some old clothes for the children in poor areas with my mom. A．prepare B．will prepare C．was preparing D．had prepared 【答案】C 【详解】句意：——昨天下午我在学校没见到你，你在哪儿？——我当时正和妈妈为贫困地区的孩子们整理旧衣服。 根据问句“Where were you?”可知，询问的是昨天下午那个特定时间“我”在哪里，所以答句应该用过去进行时来表示过去某个时间正在进行的动作。过去进行时的结构是“was/were+现在分词”。“I”是第一人称，所以用“was”，“prepare”的现在分词是“preparing”，即“was preparing”。 4．My cousin saw a traffic accident while he ________ for the bus at the bus station. A．was waiting B．waited C．waits D．is waiting 【答案】A 【详解】句意：我表弟在公交车站正在等公交车的时候看到了一起交通事故。 was waiting过去进行时；waited过去式；waits三单形式；is waiting现在进行时。根据“My cousin saw a traffic accident while he...”可知，主句saw是过去式，while引导的从句表示过去某一时刻正在进行的动作，所以时态使用过去进行时。 5．—I called you at 8 last night. But there was no reply. —Oh, we ________ a party for my grandma in the countryside. A．have B．had C．were having D．are having 【答案】C 【详解】句意：——昨晚8点我给你打电话了，但是没人接。——哦，我们当时正在乡下为我奶奶举办派对。 根据上句“I called you at 8 last night”可知，询问的是昨晚8点那个具体时刻正在做的事，应使用过去进行时were having。 6．—Helen, I didn’t see you in the classroom at five yesterday afternoon. —Oh, I ________ singing at that time. A．will practise B．was practising C．have practised D．am practising 【答案】B 【详解】句意：——海伦，昨天下午五点我没看见你在教室里。——哦，那时我正在练习唱歌。 根据时间状语“at five yesterday afternoon”和答语中的“at that time”可知，动作在过去某一具体时刻正在进行，应用过去进行时，结构为“was/were+现在分词”。主语为“I”，be动词用“was”。 7．—Were you at home at 9:00 last night? —Yes, I ________ a movie at that time. A．watch B．watched C．am watching D．was watching 【答案】D 【详解】句意：——昨晚9点你在家吗？——是的，那个时候我正在看电影。 根据时间状语“at 9:00 last night”和“at that time”可知，此处表示过去某一特定时刻正在进行的动作，应用过去进行时。应填was watching。 8．—I called you at 9 o’clock last night, but you didn’t answer. —Oh, sorry. I ________ a report for the meeting and didn’t hear the phone. A．will write B．am writing C．wrote D．was writing 【答案】D 【详解】句意：——昨晚9点我给你打电话，但你没接。——哦，抱歉。我当时正在为会议写一份报告，所以没听到电话响。 根据时间状语“at 9 o’clock last night”可知动作发生在过去的具体时刻，结合语境可知当时正在进行的动作导致没听到电话，应用过去进行时，谓语结构是was/were doing。 9．—Why didn’t you answer my WeChat message at 8:30 last night? —Oh, I ________ my piano lesson at that time. A．take B．took C．am taking D．was taking 【答案】D 【详解】句意：——昨晚八点半你为什么没回我的微信消息？——哦，我那时正在上钢琴课。 根据“at 8:30 last night”及“at that time”可知，此处强调过去某一具体时刻正在进行的动作，应用过去进行时“was taking”。 10．—What happened to your mother? —She cut herself carelessly while she ________ breakfast. A．prepares B．is preparing C．was preparing D．has prepared 【答案】C 【详解】句意：——你妈妈怎么了？——她在准备早餐时不小心切到了自己。   根据“What happened”和“cut”可知，整个语境描述的是过去发生的事情。while引导的时间状语从句表示“在……过程中”，强调主句动作（cut）发生时，从句动作（prepare）正在进行，因此需要用过去进行时was preparing。 11．They were ________ the high jump when the teacher came to the playground. A．practicing B．practiced C．practices D．practice 【答案】A 【详解】句意：当老师来到操场时，他们正在练习跳高。 practicing练习（现在分词）；practiced练习（过去式/过去分词）；practices练习（第三人称单数）；practice练习（动词原形）。根据“when the teacher came”可知动作发生在过去且正在进行，应用过去进行时（was/were + doing）。题干中be动词为were，后接动词表示进行时需接现在分词形式，只有A项符合。 12．Because of the bad weather last week, Grade Seven students ________ a special test at home at this time yesterday. A．take B．are taking C．were taking D．have taken 【答案】C 【详解】句意：由于上周天气不好，七年级的学生昨天这个时候正在家里参加一场特殊测试。 根据时间状语“at this time yesterday”可知，动作发生在过去的某一具体时间点，应用过去进行时，结构为was/were+现在分词。主语“Grade Seven students”为复数，用were taking。 13．When the teacher came into the classroom, I ________ the class project with my team members. A．discuss B．discussed C．was discussing D．will discuss 【答案】C 【详解】句意：当老师走进教室时，我正和队友们讨论班级项目。 根据题干“When the teacher came into the classroom”可知，When引导时间状语从句，从句中“came”是过去时，主句表示过去某一时刻正在进行的动作，应用过去进行时，应填was discussing。 14．My neighbor, Mr. Wang, _______ his dog for a walk when I saw him yesterday evening. A．takes B．took C．was taking D．is taking 【答案】C 【详解】句意：昨天晚上当我看到我的邻居王先生时，他正在遛狗。 根据“when I saw him yesterday evening”可知，表示过去某一时刻正在进行的动作，应用过去进行时。故选C。 15．When the earthquake happened, many people ________ in the building. A．work B．worked C．are working D．were working 【答案】D 【详解】句意：当地震发生时，许多人正在大楼里工作。 work工作，动词原形；worked工作，work的过去式；are working正在工作，work的现在进行时结构；were working正在工作，work的过去进行时结构。根据时间状语从句“When the earthquake happened”可知，主句表示过去某一时刻正在进行的动作，应用过去进行时，其结构是“was/were+动词的现在分词”。主语many people为复数，be动词用were，work的现在分词是working。 16．—Did you see the accident yesterday? —Yes. I ________ when it happened. A．walk B．walked C．was walking D．have walked 【答案】C 【详解】句意：——你昨天看到那场事故了吗？——是的。当事故发生时，我正在步行。 根据“when it happened”可知，事故发生在过去某一时刻，此处强调当事故发生时“我”正在进行的动作，应用过去进行时，其结构为was/were+动词的现在分词。主语是I，用was，walk的现在分词是walking。 17．—Why didn’t you answer my phone? —Sorry, I ________ a shower at that time. A．take B．took C．was taking D．am taking 【答案】C 【详解】句意：——你为什么没接我的电话？——抱歉，那时我正在洗澡。 根据问句“Why didn’t you...”可知动作发生在过去，结合答语中“at that time”可知，此处强调过去某个特定时间点正在进行的动作，应用过去进行时，应填was taking。 18．— Did you see the car accident just now? — No, I ________ at that time. A．read B．was reading C．have read D．reads 【答案】B 【详解】句意：——你刚才看到车祸了吗？——没有，我那时正在读书。 根据时间状语“at that time（在那时）”，表示过去某一时刻正在进行的动作，需用过去进行时was reading。 19．—Why didn’t you answer my call? —I ________ in the shower. A．was taking B．took C．am taking D．take 【答案】A 【详解】句意：——你为什么不接我的电话？——我（当时）正在洗澡。 根据问句“Why didn’t you answer my call?”可知，此处强调过去打电话那个时刻正在进行的动作，应用过去进行时，主语是I，be动词用was。故选A。 20．I was folding my clothes while my mother ________ in the kitchen. A．cooked B．cooks C．cooking D．was cooking 【答案】D 【详解】句意：当我正在叠衣服的时候，我的妈妈正在厨房做饭。 根据“I was folding my clothes”可知，主句时态为过去进行时，while引导的时间状语从句表示两个动作同时进行，从句也应该用过去进行时。应填was cooking。 21．—What were you doing at this time yesterday? —I _______ my grandmother with housework. A．help B．am helping C．was helping D．helped 【答案】C 【详解】句意：——昨天这个时候你在做什么？——我正在帮助我的祖母做家务。 help帮助；am helping正在帮助；was helping正在帮助；helped帮助了。根据“at this time yesterday”可知，句子表示过去某一时刻正在进行的动作，应用过去进行时 (was/were + doing)。主语是I，be动词用was。所以选C。 22．The boy ________ the mountains when he saw a huge eagle. A．climbs B．climbed C．was climbing D．is climbing 【答案】C 【详解】句意：当那个男孩看见一只巨大的鹰时，他正在爬山。 when引导的时间状语从句使用了一般过去时，表示过去某个时刻正在进行的动作被另一个动作打断，爬山是过去那一刻正在进行的延续性动作，因此要用过去进行时was climbing。 23．—Why were you angry? —Because they _________ too much noise. A．are making B．were making C．make D．have made 【答案】B 【详解】句意：——你为什么生气？——因为他们那时正在制造太多的噪音。 问句“Why were you angry?”用了一般过去时，说明“生气”是过去的事。生气的原因是“当时他们正在制造噪音”，要用过去进行时“was/were+现在分词”。主语they是复数，be动词用were，make的现在分词是making，故填were making。 24．My little sister ________ toys while I was reading books. A．is playing B．plays C．played D．was playing 【答案】D 【详解】句意：当我在读书的时候，我的小妹妹正在玩玩具。 根据从句“while I was reading books”可知，主句动作表示过去某一时刻正在进行的动作，应用过去进行时，结构为“was/were + doing”。主语My little sister为第三人称单数，be动词用was。故选was playing。 25．—What ________ you ________ when the teacher came into the classroom? —I was reading an English storybook. A．do; do B．did; do C．were; doing D．are; doing 【答案】C 【详解】句意：——当老师走进教室时你正在做什么？——我正在读一本英语故事书。 根据答语“I was reading an English storybook.”可知，句子时态为过去进行时；when引导的时间状语从句表示过去的具体时刻，主句应用过去进行时，结构为was/were+doing；主语是you，be动词用were。 26．While my sister ________ TV, I was listening to music in the living room. A．watches B．watched C．were watching D．was watching 【答案】D 【详解】句意：当我妹妹正在看电视时，我正在客厅里听音乐。 根据后半句“I was listening to music”可知句子时态为过去进行时，while引导的从句表示两个动作同时发生，也应用过去进行时。主语my sister是第三人称单数，be动词用was，应填was watching。 27．When the teacher passed by the hall, the students ________ for the graduation party. A．has prepared B．will prepare C．were preparing D．is preparing 【答案】C 【详解】句意：当老师经过大厅时，学生们正在为毕业派对做准备。 根据“When the teacher passed by the hall”可知，从句谓语passed是过去式，表示过去某个时间点正在进行的动作，主句应用过去进行时，结构为was/were doing。主语the students是复数，be动词用were。故选were preparing。 28．— I called you at 8 o’clock last night, but nobody answered. — Oh, I ________ a shower at that time. A．took B．was taking C．am taking D．will take 【答案】B 【详解】句意：——我昨晚8点给你打电话，但没人接。——哦，那时我正在洗澡。 took动词过去式；was taking过去进行时；am taking现在进行时；will take一般将来时。根据“at 8 o’clock last night”和“at that time”可知，表示过去某一时刻正在进行的动作，应用过去进行时，结构为“was/were+现在分词”。应填was taking。 29．—Why didn’t you answer my phone call? —Sorry, I ________ a shower. The water was too loud. A．took B．was taking C．have taken D．will take 【答案】B 【详解】句意：——你为什么没接我的电话？——抱歉，我那时正在洗澡。水声太大了。 根据问句“Why didn’t you answer my phone call?”可知打电话是过去发生的动作，答句解释当时正在进行的动作，应用过去进行时was doing。 30．When Ben ________ to school, he saw a traffic accident on the road. A．walked B．is walking C．was walking D．walks 【答案】C 【详解】句意：当本正在步行去学校时，他在路上看到了一起交通事故。 walked步行；is walking正在步行；was walking正在步行；walks步行；根据“he saw a traffic accident on the road. ”可知，主句为一般过去时， 从句用过去进行时， 主语为单数， 助动词用was。故应填was walking。 31．I ________ TV when my mother came back. A．watch B．watched C．am watching D．was watching 【答案】D 【详解】句意：当我妈妈回来时，我正在看电视。 根据“when my mother came back”可知，从句是一般过去时，表示过去具体的时间点，主句表示在过去某一时刻正在进行的动作，应用过去进行时，其结构为was/were doing，主语为I，be动词用was。 32．—Where were you at 8 yesterday evening? —I ________ a movie in a city cinema with my wife. After that, we went home. A．was watching B．will watch C．watched D．is watching 【答案】A 【详解】句意：——昨晚八点你在哪里？——我正和妻子在一家城市电影院看电影。在那之后，我们就回家了。 问句中“at 8 yesterday evening”表示过去某一具体时间点正在进行的动作，需用过去进行时，结构为“was/were + 现在分词”，主语为I，be动词用was，watch的现在分词为watching。 33．My mother _______ clothes at seven o’ clock yesterday evening. A．washes B．washed C．was washing D．is washing 【答案】C 【详解】句意：昨天晚上七点我妈妈正在洗衣服。 washes洗（一般现在时）；washed洗（一般过去时）；was washing正在洗（过去进行时）；is washing正在洗（现在进行时）。根据时间状语“at seven o’clock yesterday evening”可知，此处表示过去某一具体时刻正在进行的动作，应用过去进行时。主语My mother为第三人称单数，be动词用was。故选C。 34．When I got Mike’s text message, I ________ a movie with my family. A．watch B．watched C．was watching D．am watching 【答案】C 【详解】句意：当我收到迈克的短信时，我正在和家人看电影。 根据“When I got Mike’s text message”可知，when引导的时间状语从句是一般过去时，表示过去某一具体时刻，主句表示当时正在进行的动作，应用过去进行时，应填was watching。 35．— Tom, why didn’t you come to our group discussion after school yesterday? — Oh, I ________ the classroom at that time. A．clean B．will clean C．am cleaning D．was cleaning 【答案】D 【详解】句意：——汤姆，昨天放学后你为什么没来参加我们的小组讨论？——哦，那时我正在打扫教室。 clean打扫，一般现在时；will clean将打扫，一般将来时；am cleaning正在打扫，现在进行时，主语为I；was cleaning过去正在打扫，过去进行时。根据问句中的“yesterday”和答句中的“at that time”可知，动作发生在过去的某一特定时刻，表示过去某一时刻正在进行的动作，应用过去进行时。故选D。 36．When Mr. Smith walked in, the students ________ the classroom for the art festival. A．decorate B．were decorating C．decorated D．are decorating 【答案】B 【详解】句意：当史密斯先生走进来时，学生们正在为艺术节装饰教室。 根据“When Mr. Smith walked in”可知，主句动作发生在过去的某一时刻正在进行，应用过去进行时，结构为was/were+doing，主语the students是复数，be动词用were，故填“were decorating”。 37．—Why was there nobody in the classroom at 3:00 yesterday afternoon? Where did the students go? —They ________ a class about environmental protection in the school hall. A．had B．will have C．have had D．were having 【答案】D 【详解】句意：——昨天下午3点教室里为什么没有人？学生们去哪了？——他们正在学校大厅上一门关于环境保护的课程。 根据时间状语“at 3:00 yesterday afternoon”可知，此处强调过去某一具体时刻正在进行的动作，用过去进行时，应填were having。 38．—Did you hear the boy singing? —Sorry, I didn’t notice that. I ________ some cute characters with Perler beads (拼豆). A．makes B．is making C．will make D．was making 【答案】D 【详解】句意：——你听到那个男孩唱歌了吗？——抱歉，我没注意到。我（当时正在）用拼豆制作一些可爱的角色。 根据语境可知，“我没有注意到男孩唱歌”是因为当时“我”正在用拼豆制作一些可爱的人物形象。问句问的是过去某个时刻“你听到男孩唱歌了吗” ，回答中说没注意到，强调在对方问的那个过去时间点自己正在做的事情，所以要用过去进行时（was/were+现在分词），主语是I，be动词用was，make的现在分词是making，即was making。 39．—Look! Someone ________ the classroom. It’s so clean.   —Well, it wasn’t me. I ________ outside just now. A．has cleaned; was playing B．cleaned; played C．is cleaning; was playing D．was cleaning; played 【答案】A 【详解】句意：——看！有人已经打扫了教室。现在它非常干净。——嗯，不是我。我刚才正在外面玩。 根据“It’s so clean.”可知，强调过去发生的动作对现在造成的影响，第一空应用现在完成时has cleaned；根据“just now”及语境可知，强调刚才那一刻正在进行的动作，第二空应用过去进行时was playing。 40．While my brother ________ his computer, my father came home from work. A．repaired B．is repairing C．was repairing D．has repaired 【答案】C 【详解】句意：当我哥哥正在修他的电脑时，我父亲下班回家了。 repaired修理（一般过去时）；is repairing正在修理（现在进行时）；was repairing正在修理（过去进行时）；has repaired 已经修理（现在完成时）。while引导的时间状语从句通常表示持续性的动作，主句谓语came是一般过去时，表明动作发生在过去。结合语境可知，父亲回家的那一刻，哥哥正在修电脑，表示过去某一时刻正在进行的动作，应用过去进行时，结构为was/were doing。主语my brother是第三人称单数，be动词用was。故选C。 6 同步新教材，周周有练习，月月有重点！ 11 同步新教材，周周有练习，月月有重点！ 学科网（北京）股份有限公司 $