Unit8 Grammar 课件-2025-2026学年译林版英语八年级上册

该初中英语课件聚焦过去进行时，通过地震情境例句导入，引导学生从"was/were doing"结构例句中自主探究规则，构建"情境感知—规则发现—应用实践"的学习支架，衔接一般过去时等先前语法知识。 其亮点在于情境化与思维训练结合，用地震、雪暴等真实情境（如Simon的雪暴文章）设计当堂反馈（句子填空、对话完成）和Pair work，提升语言运用能力。通过对比过去/现在进行时及一般过去时，培养思维品质中的比较分析能力，帮助学生内化语法规则，教师可借助结构化练习高效开展教学。

Unit8 Safe and sound Grammar Lead-in 1 2 3 I was working when the earthquake started. People were running in all directions while pieces of glass and bricks were falling down. As I was trying to find my way out, I suddenly heard some noise above me. 2 Lead-in 3 What were people doing when the earthquake happened? Lead-in 4 过去进行时 Lead-in The past continuous tense 5 Discovering ◇Look at the sentences. He was watching TV at nine yesterday. We were sleeping when you came. She was cooking dinner at that time. They were playing football that afternoon. You were reading when the telephone rang. I was washing my car at this time yesterday. What’s the rule? 6 Discovering ◇Circle the right verb. At this time yesterday, she is reading/was reading in the study. What were you doing/did you do at nine o’clock last night? I am chatting/was chatting online with my friends when he came. It was raining/were raining yesterday. They were doing/did homework from 4:00 to 5:00 that afternoon. Use the rule! 行 7 Discovering Work out the rule! Essential Structure was / wasn’t were / weren’t + doing sb + 行 8 Discovering Work out the rule! ◆We use “was + doing” with the pronoun _____, _____, _____ and _____. ◆We use “were + doing” with the pronoun _____, _____ and _____. he she it I you they we 9 Explaining Usage To talk about things that were happening at a particular time in the past. e.g. I was reading a book at 5 p.m. yesterday. She wasn’t chatting online just now. Were your parents watching TV at 9 last night? What were they discussing all day last Sunday? 10 Communication show 1 2 3 at this time yesterday the whole night yesterday at 4 p.m. yesterday Make sentences 当堂反馈 The boys were playing football at 4 p.m. yesterday. The woman was shopping The girl was reading 11 Explaining Difficulty: when, while, as They all mean “during the time that” and can be used to introduce a long action that started before a short action. e.g. When/While/As Millie was watching TV, Andy came into the sitting-room. _______________ long action ____________________ short action Tip We use past continuous tense for the longer actions and past tense for the shorter actions. 12 Explaining Attention 1. When there are two long actions, we often use “while”. e.g. We were watching in fear while the firemen were putting out the fire. __________ long action ____________ long action 13 Explaining Attention 2. If the shorter action is in the main clause, we can use “when, while or as” to join the clauses. When/While/As Millie was watching TV, lightening hit a nearby building. __ short action 14 Explaining Attention 3. If the longer action is in the main clause, we often use “when” to join the clauses. e.g. Millie was watching TV when lightning hit a nearby building. __________________ long action 15 Comparison Summary ◆Past continuous tense: sb + was/were + doing ◆Present continuous tense: sb + am/is/are + doing ◆Simple past tense: sb + was/were/did 16 Complete a conversation Communication show ◆Complete Part A on Page 113 17 Communication show 单击此处输入你的正文，文字是您思想的提炼，为了最终演示发布的良好效果，请尽量言简意赅的阐述观点。根据需要可酌情增减文字。 当堂反馈： was snowingwere enjoying was watchingwere visiting was gettingwas reading Complete Simon’s article Communication show ◆Complete Part B on Page 113 19 Communication show was snowing was blowing drew was clearing was getting/got were enjoying 20 Practice Complete the survey with your own information. What were you doing in the _____ class this morning? Chinese __________ __________ English __________ __________ Music __________ __________ Maths __________ __________ Pair work: Ask a partner and write his/her answers. You Your partner 21 Review grammatical rules learned in this class. 2. Preview Integrated skills. Homework 22 $