Unit5 SectionA grammar focus导学案 2025-2026学年人教版八年级英语下册

科 目：英 语 使用班级：八年级 制作人：AAA 制作日期：4月15日 Unit 5 Nature’s Temper Grammar Focus Class：________ Name：______________ Mark: ______________ 【Learning Objectives】 1.understand the structure of the past continuous tense. 2.differentiate the use of “when” and “while” in past continuous tense. 3.understand the difference between the simple past tense and the past continuous tense. 4.learn to use the past continuous tense properly and describe past events with past continuous tense. 【Learning Procedures（步骤）】 Step 1. Look and Say Step 2.Presentation 1.构成:was/were+doing 思考：什么时候用was? 什么时候用were? 动词现在分词的变化规则: 口诀 规则 例子 直 1.一般情况下，直接在动词之后+ing. play— study— 去 2.以不发音的e结尾的动词，去e再加ing. take— dance— 双 3.重读闭音节的动词，双写尾字母再加ing. cut— swim— 变 4.以ie结尾的动词，把ie变为y再加ing. lie— die— tie— 有些动词通常不用于进行时，主要有（见ppt表格） 2. 句型 ① She was eating breakfast at 6 am yesterday. 肯定句: 主语+ + +其他. ② We weren't watching TV at that time. 否定句: 主语+ + + +其他. ③ - Were you playing basketball at that time? 一般疑问句: +主语+ +其他? - Yes, we were. / No, we weren't. Yes, 主语+ / . / No, 主语+ / . ④ What were you doing at 7:00 last night? 特殊疑问句： + +主语+ ? 小试牛刀：句式转换 将句子He was doing his homework.进行句式变化 否定句： 一般疑问句： 特殊疑问句（对划线提问）： 3.定义：表示过去某个时刻或某一时间段正在进行或发生的动作。 4.用法 (1) 过去进行时表示过去某一时刻正在进行的动作。时间点可以用介词短语、副词或从句来表示，也可由上下语境暗示。 I breakfast at 7:00 am yesterday.（have） (2) 过去进行时表示过去某阶段一直在进行的动作。 From 1982 to 1998, she at Yale. （teach） (3) 过去进行时可用来为一个或一系列动作的发生提供背景。 Everyone the coffee. Then a man entered the shop.（enjoy） Everyone the beautiful weather that morning. (enjoy)Some people in the sea, (swim)and some on the beach. (relax) 5.标志词 at this/that time yesterday;at 9:00 yesterday morning;at the time of ...;at that moment, all night from 8:00 to10:00 yesterday morning;when和while引导的时间状语从句 6.以when和while引导的时间状语从句(重难点⭐⭐⭐⭐⭐) 1)延续性动词和非延续性动词 延续性动词指动作可以延续一段时间，而不是瞬间结束。如：work、study、drink、eat等。 非延续性动词/瞬间动词/短暂动词指动作极为短暂，瞬间结束。如：start、begin、hit、jump、knock等。 2)when引导的时间状语从句 It was snowing when we arrived at the station. When we were singing, she came in. when既指时间点，又指时间段； when引导的时间状语从句中的动词可以是 动词，也可以是 动词；(瞬间/延续性) when引导的时间状语从句常用 ，也可以用 。(一般过去时/过去进行时) 3)while引导的时间状语从句 While he was reading in the library, the rainstorm came. They were singing while we were dancing. while只表示一段时间； while引导的时间状语从句中的动词必须是 动词；(瞬间/延续性) 强调从句和主句的动作同时发生，两句都用 ，多用while引导从句。(一般过去时/过去进行时) Exercise:请用 when 或 while 填空。 1. I was reading a book ______ the phone rang. 2. ______ I was reading a book, my sister was watching TV. 3. He fell asleep ______ he was listening to music. 4. ______ I arrived home, it started to rain heavily. 5. Please don’t talk so loudly ______ others are working. 6. What were you doing ______ the teacher came in? 7. ____________ I lived in the countryside, I learned a lot about farming. 7.一般过去时和过去进行时的区别 现在进行时和过去进行时的区别： Step 3.Exercise 一、单项选择。 ( )1.—What ______ you ______ at 8:00 last night?—I was reading a book. A. are; doing B. were; doing C. did; do D. was; doing ( )2.My father was watching TV ______ my mother was cooking. A. when B. while C. after D. before ( )3.I ______ my homework when the rainstorm came. A. do B. did C. am doing D. was doing 二、用所给词适当形式填空。 1.What ________ you ________ (do) when the typhoon came? 2.While my father ____________ (check) the weather, my mother was cooking. 3.They ____________ (play) basketball at that time yesterday. 4.When I ________ (arrive), it was raining heavily. 5.She ____________ (sleep) while I was reading. 6.The wind ____________ (blow) strongly when we went out. 7.My sister __________________ (not watch) TV at 8 last night. 8.________ it ____________ (snow) when you got up this morning? Step 5. Homework 主备人： 参与教师： 教研组长签字： 教务主任签字： In unity there is strength.团结就是力量 学科网（北京）股份有限公司 $