Unit5 重点语法及训练 2025-2026学年人教版英语八年级下册

本初中英语讲义聚焦新人教版八年级下册Unit5核心语法过去进行时及when/while时间状语从句，以“过去某时刻/段正在进行的动作”为起点，通过基本含义（适配恶劣天气场景）、结构（含主谓一致口诀）、时间标志词（如at 8:00 last night）、when/while用法区别（when接短暂动作，while接延续动作）及易错点（短暂动词不单独用进行时）构建学习支架，系统梳理期末高频考点。 资料特色在于语法讲解与单元主题紧密结合，专项练习分层设计（填空、单选等）并附详细解析（含考点标注），助力学生提升语言能力（如翻译练习规范表达）和思维品质（易错点总结培养分析能力）。课中辅助教师高效授课，课后学生可通过练习与总结查漏补缺，强化语法应用能力。

新人教版八年级下册Unit5 Nature's Temper 核心语法精讲+专项练习题(含答案解析) 单元核心语法:过去进行时 + when/while 时间状语从句(本单元唯一必考语法,期末高频考点) 一、核心语法精讲:过去进行时(Past Continuous Tense) 1. 基本含义 表示过去某个具体时刻/某一时间段内正在进行的动作,侧重“当时正在做”。 适配本单元场景:描述暴雨、大风、台风等恶劣天气发生瞬间,人物正在进行的动作。 2. 基本结构 肯定句:主语 + was/were + 现在分词(doing) + 其他 否定句:主语 + was/were + not + doing + 其他 一般疑问句:Was/Were + 主语 + doing + 其他? 主谓一致口诀: 单数人称(I/he/she/it/单个人名)用 was 复数人称(we/you/they/多人)用 were 3. 常用时间标志词(做题秒杀信号) at that time 在那时、at this time yesterday 昨天这个时候、at 8:00 last night 昨晚八点、all night 整晚、suddenly 突然 4. 重点难点:when & while 用法区别(期末必考) (1)when 用法 可接短暂动作(一般过去时),表“一个动作正在进行,突然发生另一个动作” 句型:过去进行时 + when + 一般过去时 例句:I was reading when the rainstorm came. 暴雨来临时我正在看书。 (2)while 用法 只能接延续性动作(过去进行时),表两个动作同时进行 句型:While + 过去进行时,主句过去进行时 例句:While it was raining, we were staying at home. 下雨时我们正待在家里。 5. 易错点总结(考场避坑) 1. 过去进行时不能单独用短暂动词(come/start/stop 无进行时延续概念) 2. while 后面绝不接一般过去时短暂动作 3. 时态不混用:持续动作用进行时,突发动作用一般过去时 二、语法基础专项练习(基础过关) (一)用所给动词的适当形式填空(每空2分,共30分) 1. I _ (do) my homework at 7:00 last night. 2. They _ (not watch) TV at that time yesterday. 3. My mother _ (cook) dinner when the heavy wind came. 4. While it _ (rain) heavily, he was walking home. 5. What _ you _ (do) when the typhoon hit? 6. She _ (read) a book all yesterday afternoon. 7. Were they _ (play) basketball at that moment? 8. The wind _ (blow) hard when I went out. 9. We _ (clean) the yard when the rain stopped. 10. He _ (sleep) at this time last Monday. (二)单项选择(每空3分,共30分) 1. —You didn’t answer my call last night. What _ you _? —I was busy doing my homework. A. do; do B. did; do C. were; doing D. are; doing 2. I was walking to school _ it began to rain heavily. A. while B. when C. because D. so 3. While my father _, my mother was washing clothes. A. reads B. read C. was reading D. is reading 4. They _ a rest at 9:00 yesterday morning. A. have B. had C. are having D. were having 5. _ the storm was coming, people were running to safe places. A. When B. While C. Before D. After (三)句型转换(每空2分,共20分) 1. I was sleeping at that time.(改为否定句) I _ _ sleeping at that time. 2. They were playing football yesterday afternoon.(改为一般疑问句) _ they _ football yesterday afternoon? 3. She was reading books when the rain came.(对划线部分提问) _ _ she _ when the rain came? (四)句子翻译(每句4分,共20分) 1. 昨晚八点我正在打扫房间。 2. 暴雨来临时,他正在散步。 3. 下雨的时候,我的家人正在聊天。 4. 昨天这个时候你在做什么? 5. 当大风肆虐时,人们都待在家里。 三、参考答案+详细解析 (一)动词填空答案 1. was doing(at 7:00 last night 过去具体时刻,用过去进行时) 2. weren’t watching(at that time 过去进行时否定,复数用were not) 3.was cooking(when接突发动作,主句持续动作用进行时) 4. was raining(while后接延续性进行动作) 5. were; doing(what引导过去进行时特殊疑问句) 6. was reading(all yesterday afternoon 过去持续时间段) 7. playing(were提前,后接现在分词) 8. was blowing(出门时风正在刮,过去进行时) 9. were cleaning(雨停时正在打扫,持续动作) 10. was sleeping(at this time last Monday 过去具体时刻) (二)单项选择答案 1. C 解析:昨晚打电话时正在做的动作,过去进行时。 2. B 解析:when接短暂动作began,while不可接短暂动词。 3. C 解析:while引导从句,主从句双进行时,表同时进行。 4. D 解析:过去具体时刻正在进行的动作用过去进行时。 5. B 解析:storm come为延续过程,while搭配延续场景。 (三)句型转换答案 1. was not / wasn’t 2. Were; playing 3. What was; doing (四)句子翻译参考范文(考场标准句) 1. I was cleaning my room at eight last night. 2. He was taking a walk when the rainstorm came. 3. While it was raining, my family were chatting. 4. What were you doing at this time yesterday? 5. While the strong wind was blowing, people stayed at home. 四、单元语法总结(考前速记) 1. 本单元唯一核心:过去进行时,专攻“过去某时刻正在做某事” 2. when配短动作(一般过去时),while配长动作(过去进行时) 3. 天气、突发事件叙事作文,全程优先使用本语法,时态零扣分 学科网(北京)股份有限公司 $