外研版（2024）八年级上册（2024）Unit 6 When disaster strikesUnderstanding ideas教学ppt课件

这是一份外研版（2024）八年级上册（2024）Unit 6 When disaster strikesUnderstanding ideas教学ppt课件，共40页。PPT课件主要包含了教学目标，Grammar，过去进行时，Summary，Vocabulary，Homework等内容，欢迎下载使用。
通过教学活动的开展，培养学生对语法现象分析、推断和归纳的思维能力，能够在语法学习的过程中做到举一反三。
学生能够识别语篇中的过去进行时；总结和归纳过去进行时的用法；培养独立思考和自主探究的学习能力。
通过本节课的学习，学生能够了解不同的自然灾害，学会冷静地面对自然灾害。
学生能够正确认读和拼写本节课的重点词汇和语法；能够就本课时的主题进行流畅的交流和探讨。
通过本课时的活动，学生能够发现、梳理、总结过去进行时的基本用法。
通过课堂活动，学生能够掌握过去进行时并完成相应的练习，灵活运用语法规则。
01Warming up
Understanding ideas
Read the sentences frm the reading passage and summarise the grammar rules.
(a) That night, I was sleeping when the grund shk very hard.(b) We mved n while the clud was spreading ver the land like a fld.
What can yu find?
Nw find mre sentences with these structures in the reading passage.
一般来说，要表示过去某个时刻或某一时段正在进行的动作，我们常使用过去进行时。常和过去进行时连用的时间状语有：then, at this/that time, yesterday, at... last night等。- What were yu ding at 7 am yesterday? 昨天早上7点你在做什么？- I was having breakfast. 我在吃早餐。
过去进行时除了表示"过去某时刻/时段在做某事"之外，还常常出现在讲故事的语境中，请看下面的句子：Alice was sitting with her sister by the river.艾丽斯正和姐姐坐在河边。They were having a tea party in the garden.他们正在花园里举行茶会。
过去进行时句子中的谓语部分由"was/were+动词现在分词"构成，与现在进行时结构相似，只是现在进行时中的am/is/are变成了was/were。由此可以推断，过去进行时的句式变化也与现在进行时的一样。过去进行时的结构分为：肯定句、否定句、一般疑问句和特殊疑问句。
过去进行时的结构肯定句：主语 + was/were + 现在分词（-ing）+ 其他.She was singing when I entered the rm.我进房间时，她正在唱歌。They were arguing abut the mvie last night.昨晚他们一直在争论那部电影。
过去进行时的结构否定句：主语 + was/were + nt + 现在分词（-ing）+ 其他.He wasn't paying attentin during the meeting.开会时他根本没在听。We weren't jking—this is serius!我们没开玩笑，这是认真的！
过去进行时的结构一般疑问句：Was/Were + 主语 + 现在分词（-ing）+ 其他?Were yu still ding yur hmewrk when I called yu last night?昨晚我给你打电话时，你还在写作业吗？Was the baby crying ludly when the earthquake started?地震开始时，婴儿正在大哭吗？
过去进行时的结构特殊疑问句：疑问词（What/Where/Why等） + was/were + 主语 + 现在分词（-ing）?What were yu ding at 10 AM yesterday?昨天上午10点你在干什么？Why was she crying in the hallway? 她为什么在走廊里哭？
过去进行时和一般过去时虽然都表示过去发生的事情，但是过去进行时强调过去某一时刻或时段正在进行或持续的动作；一般过去时表示过去的时间里所发生的动作，所表示的动作往往已经完成。Laura was reading a nvel at eight 'clck last night. 昨晚8点Laura在看小说。Laura read a nvel last night. 昨晚Laura看了一本小说。
过去进行时常和at, yesterday mrning, at that time, at... last night等时间状语连用。其实，过去进行时还可以和when, while, as引导的表示过去的时间状语从句连用，形成复合句。One day, when Henry was wrking in a restaurant, a snake suddenly appeared.一天，当Henry正在餐馆里工作时，一条蛇突然钻了出来。
过去进行时还可以和when, while, as引导的表示过去的时间状语从句连用，形成复合句。While peple were waiting fr the traffic lights, a car suddenly appeared rund the crner.就在人们等待红绿灯的时候，一辆汽车突然从拐角处驶出。As the dctrs were checking him, the pain gt wrse.医生给他做检查时，疼痛加剧了。
when和while引导的从句与过去进行时连用的几种情况：when引导的时间状语既可以指时间点，也可以指时间段，动词可以是终止性动词，也可以是延续性动词；while引导的时间状语只指时间段，动词必须是延续性动词。They arrived while we were having dinner. 我们吃饭时他们到了。= They arrived when we were having dinner.
when和while引导的从句与过去进行时连用的几种情况：由when引导的时间状语从句，如果主句用过去进行时、从句用一般过去时，则表示一个动作正在进行的时候另一个动作(突然)发生了，强调后一动作发生的突然性。We were talking when the teacher came in.我们正在讲话，老师(突然)进来了。
when和while引导的从句与过去进行时连用的几种情况：该句也可以用while表达，但与用when表达有细微的区别，请注意体会：While we were talking, the teacher came in.我们正在讲话的时候，老师进来了。(只表明老师进来的事实，不强调突然性)
当主句和从句的动作都是延续的或同时发生的，两句都用过去进行时的时候多用while引导。They were singing while we were dancing.他们在唱歌，我们在跳舞。While I was cking, my brther was setting the table.我在做饭时，我弟弟在摆餐具。
Cmplete the sentences with the crrect frm f the verbs in brackets.
1 Peple ___________________ (sleep) when the vlcan erupted.2 While they ___________________ (walk) alng the river, a great strm brke ut.3 While the hurricane __________________ (blw) heavily, airlines culd nt fly in the area.4 The fire ___________________ (spread) quickly and ______________ (cver) the building when I heard a vice.
were sleeping
were walking
was spreading
Cmplete the passage with the crrect frm f the verbs in brackets.
At first, it was just anther nrmal weekday. I 1 ________________ (wait) at the railway statin when I 2 ________________ (hear) a ntice: there was a heavy rainstrm, s all train services were stpped.While thers 3 _________________ (call) their families r searching fr news reprts, I gt mre and mre wrried. I had a lng jurney t make. As time went by, peple 4 ______________
was waiting
were calling
(becme) luder and angrier. Just then, a lvely musics 5 _______________ (start).The music f "Me and My Mtherland" 6 _______________ (stp) all nises. Many travellers 7 _______________ (sing) alng with the music. One wman started t cry while she 8 __________________ (listen). That wnderful music by a student rchestra lifted ur spirit and gave us hpe.
was listening
Tell a stry abut a natural disaster. Use the wrds and expressins frm the reading passage and the Useful expressins t help yu.
· It was a terrible... · Peple were...· A(n)... happened in... · The cause f... was...· The buildings / rads / trees / animals were...· ... peple lst their lives.· ... peple were influenced and... hmes were brken.
What was the disaster?When did it happen?Where did it happen?
Wh was there?Hw did it develp?What did peple d?Hw did peple feel?
What happened after the disaster?
03Vcabulary
搭配：n weekdays 在工作日搭配：weekday mrning/evening 工作日的早晨/晚上I g t the ffice early n weekdays.我工作日都会早早去办公室。Weekday traffic is always very heavy.工作日的交通总是很拥堵。
搭配：railway statin 火车站搭配：high-speed railway 高铁The new railway will cnnect tw majr cities.新铁路将连接两座大城市。They are building a railway bridge ver the river.他们正在河上建一座铁路桥。
搭配：develp a habit 养成习惯搭配：develp rapidly 快速发展The city has develped int a business center.这座城市已发展成商业中心。The cmpany is develping new prducts.公司正在开发新产品。
搭配：terrible accident 严重事故搭配：terrible weather 恶劣天气He suffered a terrible injury in the game.他在比赛中受了重伤。The fd at that restaurant was terrible.那家餐厅的食物很糟糕。
04Exercises
1. 妈妈正在厨房里煮美味的晚餐。Mm __________________ a delicius dinner in the kitchen.2. 孩子们正在操场上开心地玩耍。The kids ___________________ happily n the playgrund.3. 老师走进教室时正在批改作业。The teacher __________________ papers when entering the classrm.4. 昨天下雨时我正在超市购物。I ___________________ at the supermarket when it rained yesterday.
were playing
was grading
was shpping
5. 她工作日只穿正装。She nly wears frmal clthes ____________________.6. 铁路服务因事故暂停。The _____________________ was suspended due t the accident.7. 孩子们需要时间培养社交能力。Children need time t __________________ scial skills.8. 今早我们遇到了严重的交通堵塞。We experienced _________________ traffic this mrning.
railway service
weekday, railway, develp, terrible