新目标八年级英语下册Unit3导学案

【课题】Unit3 section A 1a-2c ( 1课时)【学习目标】1.学习过去进行时的基本结构及典型句型。

What were you doing when the UFO arrived?2.学会简单描述过去发生的事情3.学会讲简单的故事【重点、难点】1.while与when的用法。

2.学习过去进行时的基本结构及典型句型。

【导学指导】温故知新小组讨论有关UFO 的知识。

自主互助学习知识剖析：一、词句1.四会单词 .barber ,bathroom, bedroom, kitchen, bought, land ,got,while, alien2.词组barber shop理发店get out 出去,离开take off 起飞in front of the library在图书馆前面sleep late 睡过头,起得晚cook dinner 做晚餐cut hair 理发Museum of Flight航空博物馆get out of the UFO从飞碟里出来work down 沿着call the police给警察打电话3. What were you doing when the UFO arrived ? I was sitting in the barber's chair .当UFO到达的时候，你正在做什么？我正坐在理发店的椅子上。

4.The girl was shopping when the alien got out.While the girl was shopping ,the alien got out.当外星人离去的时候那个女孩正在购物。

5.The boy was walking down the street when the UFO landed.While the boy was walking down the street , the UFO landed.当UFO着陆时那个男孩正沿着街道走。

二、过去进行时：表示在过去某一时间内正在进行的动作。

构成：was / were + 现在分词（其中was是am、is的过去式，were是are的过去式）e.g. I was doing my homework then . 那时，我正在做作业。

用法：1）过去进行时表现过去某一时刻正在进行的动作。

e.g. She was writing a letter when I came in .我进来时，她正在写封信。

2）过去进行时还表示过去某阶段正在进行的动作。

e.g. They were waiting for you yesterday .他们昨天一直在等你。

★过去进行时与一般过去时的区别；过去进行时：表示正在进行的动作。

I was reading a novel last night.昨晚我在看小说。

（可能还没有看完）一般过去时：表示一个完成的动作。

I read a novel last night .昨晚我看了一本小说。

（已经看完了）三、以when和while引导的时间状语从句1）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。

2）非延续性动词指动作极为短暂，瞬间结束。

如：start,begin,arrive,jump,go,finish,borrow,knock等。

★when表示“当……的时候”。

它后面既可跟延续性动词，又可跟非延续性动词.如：Mary was having dinner when I saw her .(当我看到玛丽的时候,她正在吃饭.)★while表示“在……的时候”、“在……期间”。

while后面必须是表示动作或状态的延续性动词。

如：The weather was fine while we were in Beijing .(当我们在北京的时候天气很好.)所以, when可指时间点，又可指时间段，从句中可用延续性动词，也可用非延续性动词。

while总是指一个时间段，从句中必须用延续性动词。

学习过程：1.小组合作看图1a ，讲故事。

谈论图中发生的故事。

2.小组合作完成1a 。

3.听力提高，认真听录音完成1b/2a/2b , 复述重点句型，理解熟记词汇句型。

4.小结本节课学习的过去进行时基本结构及while与when的用法。

5.综合运用能力提高小组运用while与when讲述过去发生的故事，巩固过去进行时。

【课堂练习】一、用所给单词的适当形式填空1.Mary ofen ______up at six o'clock. But she _______(not get)up at this time yesterday.2.When I came in, Alice _________(lie)in bed.3.________(not be) late again. Please get to school on time.4.The plane__________(take off) a five minutes ago.5.While the reporter_________(take) a photo, the cat climbed the tree again . 【要点归纳】while与when的用法。

【拓展练习】一、用while或when 填空1.The girl was shopping ________the alien got out.2.______ the girl was shopping ,the alien got out.3.I was doing my homework ________my mother came in.4.______I was doing my homework ,my mother came in.5.He called to see me _________I was looking for my bag.6.________we were talking ,Dad got home.7.________I was sitting in the barber's chair , my friend phoned me.8.The Greens were having dinner ________ I visited them.9.What did you do ________ the UFO landed?10._______I arrived at the airport , the plane was taking off.【总结反思】【课题】Unit 3 section A 3a-4 (1课时)【学习目标】1.理解掌握3a的短文。

2.过去进行时与过去式在文章中的运用及二者的区别。

【重点、难点】1.过去进行时与过去式在文章中的运用及二者的区别。

2.reach, arrive ,get to三者的区别。

【导学指导】温故知新小组用过去进行时与过去式讲故事。

自主互助学习一、重要知识点1.experience当经历讲,是可数的.当经验讲,是不可数的.例如:I had a very unusual experience on Sunday.2.around大约等同于about,另作“环绕”讲例如:I get up at around 6 o'clock every day. 可用about替换.He likes travelling around the world. 这时不可替换.3.follow跟随,遵从.following 下列的,下述的,接下来的The boy followed his mother into the meeting room.4.arrive ,reach, get to 三者都有“到达”之意.1）arrive是不及物动词,要么不跟宾语,若跟宾语需用介词at 或in2）reach是及物动词,可直接跟宾语3）get与to合在一起即get to 才有到达之意,单单一个get是“得到,购买”等意思.例如: Bofore the police arrived,the alien left the shop.(不跟宾语)They arrived in Beijing last night.(大地方用in)They arrived at school gate at 3 o'clock yesterday afternoon.(小地点用at)They reached Beijing last night.They got to Beijing last night.5.surprise使吃惊,动词be surprised （某人）很吃惊，形容词主要修饰人,surprising令人吃惊的,主要修饰物. 例如:I don't want to surprise him.I am very surprised at the surprising news.我对这个令人吃惊的消息感到很惊讶。

surprise sb. 指“让某人吃惊”I don’t want to surprise you .我不想让你吃惊。

6.kid小孩开玩笑He is a kid . I passed the exam? you are kidding!7. I was walking down the street when a UFO landed right in front of me .当一个UFO恰好落在我面前的时候，我正在街上走。

right在这里是副词，“恰好”“‘正好”的意思，表示强调。

例如：right now（现在）right here（就在这儿）8. Before the police arrived , the alien left the shop .在警方到达之前，外星人离开了商店。

before“在……之前”引导时间状语从句学习过程：1.学习新单词.experience, imagine, strange, follow, amazing, kid 。

2.学习3a短文.1)让学生自学短文并逐句翻译,再纠正，找出文章中的重点词语句型。

2)熟读短文并标记出含有过去进行时的句型。

3)让学生自学短文,朗读短文。

4)听录音，复述文章。

3.小组合作，写出关键词句，看图讲故事。

4.小组合作，运用过去进行时描述过去某时的活动。

【课堂练习】一、用所给词的适当形式填空。

1. While I was in the kitchen, I heard someone ___________(shout) for help.2. This English word has different ___________(mean) in Chinese.3. Both of the old men are national ___________(hero).4. Tony ___________(fly) to the US. this morning, and his ___________(fly) took off at 7:20.5. I ___________(sleep) late when I ___________(hear) a loud noise.6. I think the news is ___________(amaze).7. They ___________(visit) the museum this time yesterday.二、用arrive in(at), reach, get to的适当形式填空。