新目标初二英语下册导学案八年级Unit3 A

八年级（下）英语学科导学案主备人：刘贵田 课型：新授课审核人：关学伟 时间：2011.03.18Unit3 What were you doing when the UFO arrived?(Section A)教师寄语：Custom makes all things easy.有个好习惯，事事皆不难。一、 学习目标1.Talk about past events2.Tell a story二 教学重点和难点1） 过去进行时态。2） when和while的区别。三 知识链接复习现在进行时和一般过去时的用法四学法指导1、 Reading the words of Unit32、 Understanding the meaning of the sentences of pages18-20.3.查找资料预习过去进行时态。五、导学过程1、 过去进行时1）用法：过去进行时态表示的是过去某个时间（点时间或段时间）正在进行或发生的动作。What was she doing at nine oclock yesterday? 昨天晚上九点她在做什么？（介词短语表示点时间）When I saw him, he was cleaning his room. 当我看见他的时候他正在打扫房间。（when从句表示点时间）It was raining when they left the station. 他们离开车站的时候天正在下雨。（when从句表示点时间）When I got to the top of the mountain, the sun was shining.当我到达山顶的时候，阳光灿烂。（when从句表示点时间）We were watching TV from seven to nine last night. 昨天晚上七点到九点的时候我们在看电视。（介词短语表示段时间）What was he researching all day last Sunday? 上周日他一整天都在研究什么？（段时间）My brother fell down while he was riding his bicycle and hurt himself. （while从句表示段时间）我哥哥骑自行车的时候从车上摔下来，受伤了。 He was cleaning his car while I was cooking. 他擦车时我在做饭。（两个动作同时进行）2）谓语结构：be(was/were)现在分词 3）常用的时间状语：at this time yesterday, at that time，at nine oclock yesterday, this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while引导的时间状语从句4）句式： They were playing football at six yesterday.否定句： 一般疑问句： 肯定和否定回答： 划线部分提问： 2、when和while的区别1）when，while都有“当时候”的意思。when既可表示某一点时间，也可以表示某一段时间 。在when引导的时间状语从句中，其谓语动词可以是延续性的，也可以是非延续性的。例如： I was just reading a book when she came into my room. 她走进我房间时，我正在看书。 Were you writing when the teacher came in? 老师进来的时候，你在写信吗？When he was a child， he was always trying out new ideas.他小时候就常常试验一些新的设想。2）while在过程中,只能表示某一段时间，不能表示某一点时间。在while引导的时间状语从句中，其谓语动词只能是延续性的。例如：While Jim was mending his bike, Lin Tao came to see him. 正当吉姆修自行车时，林涛来看他。 3)另外，when和while的区别还在于：while引导的时间状语从句多用过去进行时态，而when引导的时间状语从句多用一般过去时态。 例如：While they were talking , the bell rang.正在他们谈话的时候，上课铃响了。I was doing my homework when my mother came back home yesterday evening. 昨天晚上妈妈回家的时候，我正在做家庭作业。 4、when/while都可做并列连词前者等于and at that time,(就在这时，突然)，后者表对比，可译为“而” I was going downstairs when the telephone rang. （sb. was doing sth. when sth. happened.）Lucy is in blue while Lily is in green. (另外，as一边一边,表示两个动作同时进行。He sang as he walked.)3. in front of 与in the front ofin front of 在前面（范围外）in/at the front of 在前面（范围内）eg : There is a big tree the classroom.4. follow sb. to do sth. 跟着某人去做某事译：请跟我读。 5. surprise=amaze v. The news surprised/amazed me. Surprised=amazed adj. 主语是人，只作表语。I am surprised/amazed at what he said.I am surprised/amazed to hear what he said.Surprising=amazing adj.既可作表语又可作定语。The news is really surprising /amazing. (表语)I am surprised to hear the surprising /amazing news. (定语)surprise n. in surprise 惊奇地 to ones surprise使某人惊奇的是6. 预习课本P18-207. 找出18页至20页的重点短语 六、学习小结通过本节学习，你学会了哪些知识？ 七、达标检测：（一）句型转换He was standing in front of the library at 7:00 last night.否定句： 一般疑问句： 肯定回答： 否定回答： 划线提问： （二）用所给词的适当形式填空1. What you (do) at 5:00p.m. yesterday?2.He (shop) in a supermarket when you called him.3.While it (rain) heavily ,he went out.4.The subway usually (leave) the station at 9:00 in the evening.5.Listen! The boys (sing) over there .6.He sits (在前面) me.（三）翻译1)当飞机起飞的时候, 天正下着大雪。It_ _ heavily when the plane_ _.2)他们起得很早, 以便能赶上第一班车。They got up early_ _ they could _ the first bus.3)孩子们穿上最好的衣服来庆祝春节。The children _ _ _ their best clothes to celebrate the Spring Festival.4)瞧, 孩子们正在追逐一只小猫。Look!The children _ _ _ a small cat.5)我女儿正在写信时, 其他的孩子都在外面玩耍。My daughter was writing a letter _ the other children_ _ outside.八、布置作业(一)句型转换1. I was swimming at this time last Sunday.(划线提问) at this time last Sunday?2.While it was raining, the plane landed.(改为同义句)It was raining the plane landed.3.He rode his bike to school yesterday morning. ( 用1：20p.m.改写句子)He his bike to school 1：20p.m. yesterday.4.Tom is playing tennis now. (用from 5 to 6 oclock yesterday改写)Tom tennis from 5 to 6 oclock yesterday.(二)用所给词的适当形式填空1、He had an (usual) experience.2、He followed the alien (see) where it was going.3John_（work）all day yesterday.4He _（walk）home when the rain_(begin).5What_you _（do）at ten oclock yesterdayI_（study）in class6While Harry _（have）breakfast, Lily _（telephone）him 7When I _（go） to school this morning, I _ （see） a car running into a bus8. This time yesterday, Jack _ (mend) his bike.9. I _ (write) a letter at ten last night.10. It was six. The Greens _ (have) supper.11. When you _ (knock) at the door yesterday, I _ (do) some washing.12. While my mother _ (watch) TV, I _(make) a kite.13.Mary _(do) some washing at this time yesterday evening.14.When I saw Xiao Li, he _(lie)in bed.15._you _(paint) when the phone rang?16.They_(not have) supper at that time.17.We ( watch) TV at this time yesterday.18.What _you _(do) when your mother came back?19.What _he _(do) at five yester