个性化辅导讲义

课题Unit 3 What were you doing when the UFO arrived?教学目标1.掌握Unit3重点单词，短语如arrive, experience, while, follow, happen等等2.掌握Unit3 while 与when引导的重点句型结构3.了解过去进行时的含义，掌握其结构及基本用法4.背诵短文3a,积累语料重点、难点重点掌握过去进行时态的用法。

难点掌握when和while的用法考点及考试要求1.熟练掌握Unit3重点词汇及句型结构的用法2.熟练掌握过去进行时态的用法，准确解题3.区分when与while教学内容知识框架单词与短语well, buy, cut, land, while, experience, strange, around, follow, climb, shout, run, anywhere, happen, accident, modern, bright, silence, destroy, meaning, souvenir1.get out (of)2.in front of / in the front of3.take off4.buy fornd on6. shout to / at7.run awaye in9.hear about 10.the Museum of Flight11.happen to12.stop doing13.take place14.as... as目标句型：1. What were you doing when...?2. I was doing sth. when...3. How about... / What about...?4. What happened next?5. While sth./sb. was doing sth., I did...语法：过去进行时考点一：过去进行时典型例题一、巩固复习现在进行时二、写出下列动词的现在分词。

walk study clean_________________make live arrive________________shop___________ get cut_______________三、过去进行时讲解过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如：I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。

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

过去进行时的构成：肯定形式：主语+was/were+V-ing否定形式：主语+was not (wasn't)/were not (weren't)+V-ing疑问形式：Was/Were+主语+V-ing。

基本用法：1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。

常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth等时间状语从句，如：What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。

I was cooking when she knocked at the door. 她敲门时我正在做饭。

知识概括、方法总结与易错点分析考点聚焦◆when和while的区别when表示当……时候,既指时间点，也可指一段时间；while表示当……时候,只指一段时间，因此w hen引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。

when从句的动作和主句的动作可以是同时发生，也可以是先后发生；while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生，从句常用进行时态。

由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；若从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导，如：When the teacher came in, we were talking. =While we were talking, the teacher came in.They were singing while we were dancing.不说They were singing when we were dancing.when和while 还可作并列连词。

when表示“在那时”；while表示“而，却”，表对照关系。

如：1. The girl was running across the road when a motor bike knocked her down.那女孩正要跑过马路，这时一辆摩托车把她撞倒。

2. He is tall while his father is short. 他长得很高，而他爸爸却很矮。

练一练：用when和while填空1._________ the boy was walking to school, he saw a bird in a tree.2._________I left the classroom, the students were cleaning the blackboard.3. I was surfing the In ternet _________my parents were watching TV.4. It was snowing heavily __________we got home.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针对性练习用所给词的适当形式填空1.When the teacher came in, the students ___________ (talk).2.He___________(do) his homework at two yesterday afternoon.3.The students __________ (read) English in the room now.4.At tha t time the boy ________（play）football with his friends.5.While I _________ (talk) with Mr. Li in English, he called me.6.He _________________(draw) at eight yesterday evening.7.The girl _______________ (shop) when her friend ______________ (see) her.8.While he ______________ (cook) dinner, his friend ____________ (get) out of the shower.9.He saw the UFO while he _________________ (walk) down the s treet.10.I ___________ (do) my homework when my classmate _________(call)me last night.2. 单项选择语法专练1. My brother ___ while he ___ his bicycle and hurt himself.A. fell, was ridingB. fell, were ridingC. had fallen, rodeD. had fallen, was riding2. Tom ___ into the house when no one ___.A. slipped, was lookingB. had slipped, lookedC. slipped, had lookedD. was slipping, looked3. The last time I __ Jane she ___ cotton in the fields.A. had seen, was pickingB. saw, pickedC. had seen, pickedD. saw, was picking4. He was sleeping late _______ someone knocked on the door．A. whenB. whileC. asD. after5. —What were you doing at this time yesterday?—I _______．A. sleepB. sleptC. was sleepingD. sleeping6. _______ I was walking to school,I saw a cat climbing a tree．A. WhenB. WhileC. BeforeD. as7. The UFO ___ east to west when he saw it.A. was travelingB. traveledC. had been travelingD. was to travel8. I ___ my breakfast when the morning post came.A. hadB. had been havingC. have been havingD. was having9. When I arrived at his office, he ___ on the phone.A. was speakingB. spokeC. had been speakingD. had spoken10. When I came in, he_______ a letter.A. wroteB. is writingC. was writingD. writing考点二：Unit3知识点典型例题重点单词过关恐惧的攀登跳跃呼喊ride的过去时火车站run的过去式逃跑逃掉任何地方meet的过去式进来发生事故飞机hear的过去式现代的杀死致死谋杀明亮的运动场门铃ring的过去式tell的过去式关闭寂静意思含义become的过去式航班飞机地球英雄fly的过去式跟踪练习This morning ____1_____(当……的时候) I was walking to school I saw a cat in a tree. It was really ______2____(恐惧的). So I decided to _____3____(爬) the tree to ge t it dowm. But while I was climbing the tree, a man saw me and ____4____(呼喊) at me, because it was his tree. So I had to ___5_____(跳下) down from the tree. I told the man what ____6____(发生) to the cat, he called the ____7_____(警察). A woman nearby saw it, too. And she called the newspaper at once. Before the reporter came, the cat was so frightened tha t it ____8_____(落下) dowm from the tree. Luckily, it was not hurt itself. Everything seemed to be OK, but it was nearl y 8:00. I _____9____(跑) to school. When I arrived at the schoo l gate, the _____10____(铃) rang.重点词汇1．cut v．切；剪；割cut (one’s)hair理发Be careful．Don't cut yourself．小心，别切到自己。