unit3-When和while引导的时间状语从句
Unit_3_What_were_you_doing_when_the_UFO_arrived？
classmates doing when he took off?
2. What were you/your family/
classmates doing at that time?
Section B
1 Match the sentences with the pictures.
1. c
He’s scared. scared
1.get out
出去；离开
从…出来
get out of
get out of the shower 洗完澡出来 2.talk on the phone 通过电话交谈 3.cut – cut-- cut 剪；切；割
Pair work
bedroom
sleeping
A: What were you doing when the UFO arrived? B: I was … when it arrived.
5 • ___ The alien visited the Museum of Flight. 4 • ___ The alien bought a souvenir. 1 • ___ A UFO landed on Center Street.
• ___ The alien went into a store. 3 alien
arrived?‖ Match the statements with the people in the picture.
d 1.___ I was in the bathroom. 4.___ I was in the kitchen. c 2.___ I was in my bedroom. 5.___ I was in my barber shop. e b 3.___ I was in front of the library.6.___ I was in the barber’s chair. a f
英语：Unit 3教案(人教新目标八年级下)
英语：Unit 3教案(人教新目标八年级下)学习方式：自主、合作学习情感目标：通过当飞碟的降临,对人们各自正在忙于自己的事如何用英语来表达自己正在所做的事情.课前任务：Task1.请同学们回家调查家庭成员在过去的某个时第一课时教学内容与分析教学内容：Section A (1): 1a---1c教学目标：1.能够掌握基本单词和词汇。
2.学会过去进行时的基本结构与用法。
3.能够运用以when 引导的时间状语从句。
4.能够运用基本句型进行提问。
学习任务：我的爱好目的：通过学生小组活动，调查在过去的不同时间里做不同的事情,学会使用过去进行时态,培养学生应用英语进行交际的能力。
语言技能：Listening .Speaking .Reading ﹑Writing语言知识：过去进行时的用法及复习一般过去时态提示词语及句型：got out, cut, barber shop, bathroom, kitchen, well, bathroomWhat were you doing when the UFO arrived ?I was sitting in the barber’s chair .The barber was cuttingmyhair when they arrived .教学重点、难点分析：教学重点：基本单词，词汇和句型教学难点：能够运用过去进行时谈论人们所做的事情.课前准备1.本课时的教学课件2.课前发给学生表格向学生布置任务：在表格中写出有关内容。
教学设计教学步骤建议和说明Teaching Steps ：Step 1 ：Warm-up and revision1.Ｓhare an English song ．2.Greetings and free-talk .从平常的谈话中轻松导入本课句型，信息沟通使谈话非常真实，而又浅显What are you doing ? What did you do last night ?3.Show slides: Revise: is/an/are +动词ing4.Brain storm：Collect the names of activities which said by the students．Step 2 ：Presentation :1.Watch a video2.By asking: What’s this in English ?Have you even seen it ?3.Teach:UFO, bedroom, bathroom, bedroom, kitchen,living-room, barber shopStep 3 ：Work on：SB Page 18 , 1a .1.Point to the sentences .Read the sentences .Explain what each one means.2.Teach :barber shop, well, bathroom, bedroom, kitchen, get out, cut3.Look at the picture.. Point out the six people. Match the statements with the people in the picture4.Check the answers .5.Practice reading .Step 4 ：Work on：SB Page 18 , 1b .1. Read the instructions .Make sure the Ss understand whatthey should do .2. Look at the dialogue in the picture .Explain :过去进行时态的构成: was / were + doing .用法:表示过去某一时刻或某一段时间正在进行的动作，一般用时间状语来表示。
宾语从句while when
宾语从句while when在宾语从句中，"while" 和 "when" 都是引导时间状语从句的连词，但它们在用法上有一些区别。
"While" 表示“在......期间”，强调主句动作和从句动作同时进行，或者主句动作在从句动作的持续过程中发生。
例如：I was reading while my sister was watching TV.（我在读书，而我妹妹在看电视。
）这里的 "while" 表示两个动作同时进行。
"When" 表示“当......时候”，强调主句动作和从句动作的先后顺序，或者表示某个特定的时间点。
例如：I will tell her when she comes back.（她回来时，我会告诉她。
）这里的 "when" 表示从句动作发生后，主句动作才会发生。
需要注意的是，"while" 引导的从句通常使用进行时态，而 "when" 引导的从句可以使用各种时态。
另外，"while" 还可以表示对比或转折的关系，而 "when" 一般不具有这种用法。
例如：She likes music while I prefer sports.（她喜欢音乐，而我更喜欢运动。
）这里的 "while" 表示对比。
在使用宾语从句时，需要根据上下文和想要表达的意思来选择合适的连词。
同时，要注意从句的时态和语序，确保句子的逻辑和语法正确。
希望以上解释对你有所帮助！如果你还有其他关于宾语从句或者 "while" 和 "when" 的问题，欢迎继续提问。
九年级英语unit3知识点归纳
九年级英语unit3知识点归纳九年级英语Unit 3 知识点归纳Unit 3 是九年级英语中的重要一单元，主要涉及的知识点包括高级句型、介词短语和非谓语动词等。
本文将围绕这些知识点展开详细介绍。
一、高级句型1. 定语从句定语从句是用来修饰名词或代词的从句。
关系代词用来引导定语从句，主要有that, which, who, whom, whose, where, when等。
例如：- The book that I bought yesterday is very interesting.- The girl who is standing over there is my best friend.2. 宾语从句宾语从句是在主句中作为宾语的从句。
常用的引导词有that, whether, if等。
例如：- I don't know if it will rain tomorrow.- She asked me whether I had finished my homework.3. 状语从句状语从句是用来修饰主句的副词从句，常用的引导词有when, while, after, before, since, until等。
例如：- He always listens to music while he is doing his homework.- I will call you back as soon as I finish my work.二、介词短语介词短语在句中起着修饰或者指示的作用，可以表达时间、地点、原因、方式等。
常见的介词短语有at, in, on, of, for, with, by等。
例如：- I will meet you at the park tomorrow.- She is good at playing the piano.三、非谓语动词非谓语动词是指在句子中作为非主谓部分的动词形式，包括动词不定式、动名词和现在分词。
重庆市仁爱版初中英语八年级上册Unit3 Topic3教案
【教学标题】八年级上册Unit3 Topic3【教学目标】1、通过练习进一步掌握感叹句结构，能运用解题技巧解感叹句相关题型2、复习并进一步掌握过去进行时态，熟悉并掌握该时态的时间状语3、能正确区分引导时间状语的连词when与while的区别，及until的用法【教学重点】1、when& while的区别：延续性动词（表示一段时间）【从句用进行时】when +短暂性动词（表示一个时间点）【从句用一般过去时或一般现在时】while + 延续性动词【从句用进行时】2、过去进行时的基本结构：was / were + v.-ing + 其他时间状语：at that time, at nine o’clock yesterday, from seven to nine last night, all day yesterday, at this time yesterday, at 8:15 this morning, the whole morning yesterday等。
【教学难点】please变形的不同词性及用法区别与常考结构：be pleased to do sth; be pleased with sb./sth. 【教学内容】※考点 1 when & while、until原文重现：The telephone rings while Jane is practicing the violin.On the plane from New York, Jim was playing computer games until they served the food.1.1 此处while = when 意为“当……的时候”，引导时间状语从句。
when 与while 区别延续性动词（表示一段时间）【从句用进行时】when +短暂性动词（表示一个时间点）【从句用一般过去时或一般现在时】延续性动词【从句用进行时】Eg. While / When I was having supper, someone knocked at the door.When you leave the room, please turn off the lights.1.2until “直至；直到”（主句用延续性动词）not ... until ... “到……时候才”（主句用短暂性动词）【过手练习】1. Tom was watching TV _______ his father came back.A. whileB. asC. whenD. and2. Now many young people _______ go to bed _______ ten o'clock every night．A. don't; untilB. not; untilC. didn't; untilD. /; until3. Newton was playing under an apple tree _______ an apple fell onto his head.A. whenB. whileC. afterD. before※考点 2 pleasant/agree原文重现：I think classical music is pleasant.I don’t agree. I agree with you.2.1pleasant 形容词“令人愉快的，舒适的”辨别：please 动词，“请；使高兴”pleasant 形容词，作定语时，意为“令人愉快的”，一般用来修饰事物；作表语时，句子的主语一般是事物。
Unit 3 重点知识总结讲义-2022-2023学年高中英语外研版(2019)必修第一册
外研版高一英语Unit3知识重点总结一．重点词同根词及相关重点短语：1.approach--走近也可做名词方法，路，接近1）the approach of sth.某事的来临，2）an approach to doing sth.---做某事的方法**与method, way，means的区别：approach指待人接物或思考问题的方法，way处理任何事的方法，method 指合乎逻辑的方法,means指实现目的手段或交通方式：approach to doing sth., way of doing sth., by means of doing sth. method of doing sth., with an method2.chat--n.闲聊1）chat with sb.3.focus--v. 集中,名词-闲聊focus on--centre on--concentrate on...3.assume--v.假定，假设，认为---名词assumption 假定1）It is assumed that...据认为2）make assumptions about---作关于...的推测 4. respect---动词或名词尊敬，敬重，respectable--体面的，respectful-尊敬的1）have respect for sb. 2) win respect 2)in respect of---就...而言4.ignore--忽视，不理---名词ignorance无知，ignorant--无知的5.professional--职业的---amateur业余的6.suit--适合名词套装1）be suited to sb.--适合某人3）suit yourself--随你的便6.talent--名词天赋，才能---talented有天赋的1）show a talent for doing sth. 展现某方面的才能2）a talent show--才艺表演3）a man of many talents多才多艺的男子7.option--名词选择形容词optional---可选择的，optional course ---选修课8.generation--一代generation gap代沟9.responsible--名词responsibility责任，1）be responsible for...对...负责，2）have responsibility for...----对...负责3）take responsibility for...---承担...的责任9.memory--回忆1）in memory of sb.--为了纪念某人11.jaw--下巴jaw-dropping令人惊讶的，square jaw方下巴12.skin--名词皮肤---skinny极瘦的13.aim---力求达到aimless--无目的的，无目标的1)aim to do sth.--力争做... 2）be aimed at doing sth.---旨在做... 3）the aim of...---...的目标4）with the aim of...---为了14.observe ---庆祝，观察到，遵守奉行名词--observation名词观察1）observe sb. doing sth.---发现某人正在做... 15.range--一系列动词--变化1）a range of...----一系列..., 各种2) in range of sth.---在某事的范围内3）beyond of range of sth.--在某事的范围外4）range from...to... ----在....到...的范围内变化5）range between A and B在A到B的范围内变化16.apologise--道歉名词apology道歉1）apologise to sb. for doing sth. =say sorry to sb. for doing sth. 2)make an apology to sb. for sth.---因某事向某人道歉3）owe sb. an apology---应该向某人道歉3）accept one’s apology---接受某人的道歉17.stress--重读be under stress 承受着压力18. strength--名词强烈程度动词--strengthen--加强19. admire--赞美admiration--钦佩20. judge--judgement 22. settle--和解settle for--将就23.detail细节--detailed 形容词详细的1）in detail--详细地24.summary---总结动词--summarise动词总结课文重点短语： 1. turn to--转向，翻到，开始从事 2. you can’t be serious---你一定是在开玩笑吧3.That’s because...----那是因为... 4. in a studio--在录音里 5..calm down 6. raise one’s voice---提高嗓门7.be proud of...----为...自豪8.take sb’s advice---采纳9. hear from--收到某人来信hear of--听说，hear sb. out--听某人把话说完10.jump in with both feet---全身心投入11.have two options---有两个选择12.at the same campsite--在相同的地方13.in one’s +数整复数---在某人几十时14.bushy hair--浓密的头发15.well-built and tanned体格匀称晒黑的16. a square jaw方下巴17. wear one’s hair in a ponytail--留着马尾发型18.rosy cheeks--红脸颊19. can’t wait to do sth.--迫不及待做某事=can hardly wait to do sth. 20.be related to...----与...有关 2 0. take some time off---请一段时间假21.stress on--强调22.an individual style--一种与众不同23. set the tone--营造氛围24. a powerful quote---一种强有力的引言25.throughout entire life--在整个生活中26.an enormously positive force--一种及其正能量的力量27. the ending to the race--比赛的结束e back to sb.--回到某人身边29. tip-toed蹑手蹑脚的30. end up---最终成为31.make an apology--道歉32.physical appearances--外观33.offer forgiveness---给与原谅34.finish line--终点线35.leave...behind---忘记带走36. in the lead---领先37.in the burning heat在酷热中二．重点句型：1.Why don’t you also take my advice and think carefully before jumping in with both feet ?---Why don’t you +动词原形？= Why not+动原形？2.Can’t wait to see...?3. The International Day of Families, which was set by the United Nations in 1993, is held on 15 May every year.---非限定定语从句3.Watched by millions , the ending to the race has divided opinions.-----过分做状语，表被动翻译：1.被成百上千的人看着，他拼尽全力冲过了终点线。
新教材人教版必修一Unit3知识点 巩固练习
必修一Unit 3知识点+巩固练习***重点词汇精讲***strength n．力量；体力(1)build up one's strength/body 强身健体(2)strengths and weaknesses 优点和缺点(3)The strength of...is that... ……的优点是……→strong adj. 强壮的→strengthen vt. 加强；巩固fail v．失败；不及格(1)fail to do... 未能做……(2)fail in doing sth ... 在(做）……失败→failure n．失败；失败的人(或事物)(3)end in failure 以失败告终[易错点拨](1)failure表示抽象意义的“失败”时，不可数；表示具体意义“失败的人或事”时，则可数。
(2)failure后可接不定式作定语，但不接of doing...。
compete vi. 竞争；对抗(1)compete in 参加……比赛；在……方面竞争(2)compete for 为……而竞争(3)compete with/against...for... 为争取……而与……对抗/竞争→competition n．竞争→competitive adj.竞争的；有竞争性的→competitor n．竞争者pretend vi.&vt.假装；装扮pretend to be＋n./adj. 假装是……pretend to do sth. 假装做某事pretend to be doing sth. 假装正在做某事pretend to have done sth. 假装已经做了某事pretend that ... 假装……[拓展]和pretend有类似用法(后接to do/to be doing/to have done)的动词还有happen，appear，seem，claim等及be said to结构。
2021仁爱英语9年级上册Unit 3 Topic 3学科讲义(有答案)
【根底知识稳固】U3T3SA1 places of interest意为“名胜古迹〞。
e.g. There are many places of interest in Beijing.北京有许多名胜古迹。
2 have a long conversation/word/ talk with 与......进展长时间交谈。
3 work hard at 在……方面努力，致力于……。
e.g. They‘re working hard at oral English.他们努力练习英语口语。
hard-working意为“努力的，勤奋的〞,为复合形容词，用作定语，后跟名词。
e.g. He works hard all the time.他一直努力工作。
It’s hard work.这是艰辛的工作。
a hard-working child一个勤奋的孩子4 oral English意为“英语口语〞,等于spoken English。
5 I know oral English is very important, but I dare not speak English in public.我知道口语是很重要的，但是我不敢在公众场合说英语。
dare表示“敢于〞，与need一样，既可用作情态动词，亦可用作实义动词。
用作情态动词时，它只有一种形式，后跟动词原形，主要用于否认句和疑问句。
用作实义动词时，它有第三人称单数式dares，如今分词daring及过去式和过去分词dared，后跟带to的不定式。
e.g. She doesn’t dare to say anything.她什么都不敢说。
〔实义动词〕How dare you speak to me like that!你怎么敢这样对我说话！〔情态动词〕6 in public公开地，当众，公然地。
e.g. He doesn’t like to speak in public.他不喜欢在公共场合讲话。
初中英语人教版八年级下册unit 3教学设计
Unit3 Section A Period1（1a–1c）教学设计一、教材分析本节课是新目标英语八年级下册第三单元第一课时，内容是谈论过去进行时的用法。
围绕what were you doing when the UFO arrived,这一主题展开各种教学活动，让学生能在“做中学”。
用英语叙述过去正在发生的事情。
2.教学重点过去进行时的用法。
3.教学难点when 引导的时间状语从句在过去进行时中的用法。
二、教学目标：根据课程标准和本课的内容及其教材所处的地位，结合初中学生的实际情况，我制定以下教学目标：1.知识目标：Key vocabulary： bathroom、bedroom、kitchen、UFO、alien、 barber’s chair.cutting hair、climbing 、jumping、land 、get out of 、take off、in front of .Key sentences： When were you doing when the UFO arrived?I was sitting in the barber’s chair.The barber was cutting my hair.2.能力目标：培养学生的听、说、读、写的能力，并根据本课时的图片，学会用逻辑的顺序讲故事。
3.情感目标：培养学生学习英语的积极性和兴趣，引导学生热爱自然科学和社会科学，并通过本课时的学习，学会做人的道理。
4.学习策略目标：利用图片进行情景思维，让学生进行角色扮演，学习积极参与班级活动和小组合作。
三、教学重、难点：重点：掌握过去进行时难点：以when和while引导的时间状语从句。
四、设计理念：本节课我从学生的学习兴趣、生活经验和认知水平出发，倡导体验、实践、参与、合作与交流的学习方式以及多样的教学途径，充分激发学生强烈的学习愿望，使学生获得最基本的英语听说能力，发展学生的综合语言运用能力。
八年级下学期 Unit 3 What were you doing when the UFO arrived
Unit 3 What were you doing when the UFO arrived?目标认知重点词汇与短语：experience, accident, flight, land, imagine, follow, shout at, happen, climb, get out, take off, run away, in front of, on the phone, strange, scared重点句型：So，what were you doing when the UFO arrived?那么当飞碟到来时你正在做什么？I was walking down Center Street when a UFO landed.当飞碟降落时，我正在中心大街上走着。
语法：过去进行时和状语从句日常用语：---So，what were you doing when the UFO arrived? 那么当飞碟到来时你正在做什么？---Well, I was standing in front of the library. 哦，我正站在图书馆的前面。
What were you doing at nine o'clock last Sunday morning?上周日上午九点你正在做什么？I was sleeping. How about you?我正在睡觉。
你呢？I was doing my homework. 我正在写作业。
You're kidding! 开玩笑！精讲巧练1. So，what were you doing when the UFO arrived?那么，当飞碟到来的时候你在做什么？点拨1so在该句中为语气词，没有实际意思，表示惊讶或者领会，用来引出后面的内容。
So，you stayed there all the time．那么你一直待在那里了。
点拨2what were you doing是过去进行时的特殊疑问句，过去进行时表示在过去某一时刻或某个时间段内正在进行的动作，由“主语+was + was / were +v. -ing”构成。
Unit 3 what were you doing when the rainstorm came
Unit 3 What were you doing when the rainstorm came?Section A 1a-—1c【Study-aims】1、全体学生能会背本课的rainstorm, at the time of.学习了解过去进行时的构成及用法。
2、多数学生能正确的使when 与at the time of引导的时间状语从句初步交谈过去进行的事。
如：(1) Where were you when the rainstorm came? —I was in the library.(2)What were you doing at the time of the rainstorm? —I was studying.3、学习策略：学会通过看提示预测问题的答案。
4、通过和同学合作对话，了解彼此过去正在进行的生活，促使学生积极参与英语实践活动。
【Key & difficult points】能初步交谈过去进行的事学习了解过去进行时的构成及用法。
【Learning procedure】I. Pre-class1、根据下列汉语提示的单词短语识记并默写。
暴风雨_____ 在….的时候_____ 走回家_____等公车_____ 做我的家庭作业_____ 去上班 _____2.仔细观察下面的对话,用“_____”标出对话中所出现的时间，并补全句子.（1） A: What are you doing now? B: I am doing my homework now. They are having an English lesson.（2） A: What were you doing at 9 o’clock last night? B: I was doing homework. C:_________________________________(我正在打扫我的房间).（3） A: What were you doing when your mother came back yesterday?B:I ______________________________________(我正在做作业).自学预习过去进行时，掌握其构成及用法，并完成书中1a。
when与while引导时间状语从句的区别
My key dropped on the ground when I was
walking in the park. 我在公园散步时, 钥匙掉在了地上。
while
while引导的时间状语从句常指一个时间 段,从句中的动词必须为延续性动词。 while有时还可表示主句的动作与从句 的动作同时发生。
4. Now he __i_s_r_e_a_d_in_g__ (read) and __w__r_it_in__g__.
B. Translate these sentences into English.
1. 上课铃响时，你在干什么？ What __w_e_r_e___ you _d_o_i_n_g_when the class bell rang?
1. What _w__er_e__ (be) you _d_o_i_n_g_ (do) when he arrived?
2. Jim__w_a_s_s_l_e_e_p_in_g___ (sleep) when I came in.
3. They _w_e_r_e_w__a_tc_h_i_n_g_ (watch) TV at 8:00 yesterday evening.
when and while
Both of them mean ”当…… 的时候”.
Are they the same? No ！！！
when
when引导的时间状语从句可以表示一个时间 点,也可以表示一个时间段。从句中可以用
短暂性动词,也可以用延续性动词。从句中 的动作既可与主句的动作同时发生， 又可在主句的动作之前或之后发生。
Unit 3.what are you doing when the UFO arrived
1.While与When的区别
when “当…的时候”，常与一般现在时或一般过去时连用。从句 动词可以是延续性动词或终止性动词 。 When winter comes, the weather gets colder and colder. 当冬天来临时，天气变得越来越冷。 When Linda saw Davy, he was jumping with another dog. 当Linda看到Davy时，他正和另一只狗一起蹦跳着。
1. d I was in the bathroom. 2. b I was in my bedroom.
3. a I was in front of the library.
4. c I was in the kitchen.
5. e I was in my barber shop.
6. f I was in the barber’s chair.
2.So,what were you doing when the UFO arrived?
1).So在该句中为语气词，没有实际意思，表示惊讶或者领会，用来引出后面的内 容。 那么，你一直待在那里了。 So, you stayed there all the time. 2).arrive vi. 到达，抵达 arrive后接地点名词是常与介词 in 或 at连用，arrive in+大地点，arrive at+小地点 到达车站：arrive at the station 到达纽约：arrive in New York
2.flight n. 飞机；飞机的航程；航班 1）the flight to… “飞往…的航班”
E.g: It’s the flight to Singapore. 这是飞往新加坡的航班。
最新unit3-When和while引导的时间状语从句教学讲义PPT
⑤特发性羊水过多：原因不明， 孕妇、胎儿及胎盘均无异常
2．羊水过少（oligohydramnios） 妊娠晚期羊水量＜300ml ①胎儿畸型：胎儿先天肾缺如、 双肾发育不全、尿道闭锁 ②过期妊娠：胎盘功能减退 ③胎儿宫内发育迟缓
羊水化学检查
unit3-When和while引导 的时间状语从句
过去进行时的概念及构成
概念：表示过去某一时刻或某段时间正在进行 的动作
构成：主语+was/were+doing sth+时间状语
指示词：then、 at that time、once等连用，或 者用另一动作来表示过去的时间。
When与while引导的时间状语从句
2.While总是指一个时间段，从句中必须用 延续性动词。
3.统一时态：主句过去式，从句也是过去 式。
Exercises: fill with “while” or “when”
1. While May was talking on the phone,her sister walked in
2. When Rita bought her new dog,it was wearing a little coat.
3. When I saw Carlos , he was singing louldly. 4. While I was dancing , he was singing louldly. 5. When Linda finally saw David, he was
jumping with a dog. 6. I was cleaning my room When the fire broke
英语语法目的状语从句用法
英语语法目的状语从句用法时间状语从句是什么篇一1.引导时间状语从句的引导词有：①表示一些时刻发生的动作：when、while、as、once②表示一些时刻之前发生的动作：before、until③表示一些时刻之后发生的动作：after、since2. when引导从句时，主从句的动作有先有后，也可以同时进行，从句的动作可以是持续性的，也可以是短暂的。
eg. When I go to the cinema, the movie had already started. （主先从后）（短暂性）When I watched movie, I used to eat ice cream. (同时) （持续性）When the movie ended, the people went back. （从先主后）3. while侧重主从句动作的`对比，且从句的动词必须是持续性的。
4. as引导从句时侧重主从句动作同时或几乎同时进行，从句的动作可以是持续性的，也可以是短暂的。
5. 关于when的固定搭配：①…was/were doing…when…（正在做…突然）②…was/were about to do…when…（刚要做…突然）③…was/were on the point of doing…when…(刚要做…突然)④…had just done…when….(刚一…就)⑤Hardly/Scarcely had…done…when…(刚一…就)状语从句篇二Unit13 状语从句一、考点聚焦%1、时间状语从句（1）as、when、while用法一览表。
类别作用例句as as表示“当……的时候”，往往和when/ while通用，但它着重强调主句与从句的动作或事情同时或几乎同时发生。
She came up as I was cooking.(同时)The runners started as the gun went off.(几乎同时)When we were at school, we went to the library every day.(在一段时间内)He fell asleep while/when reading. Strike while the iron is hot.(用as或when不可，这里的while意思是“趁……”)（2）引导时间状语从句的连接词除上述外还有：①till, not … until …, until, before, sinceDon’t get off the bus until it has stopped.He waited for his father until(till)it was twelve o’clock.It will be five years before he returns from England.②hardly / scarcely … when, no sooner … than, as soon as once表示“一……就”As soon as I have finished it , I’ll give yu a call.Once you show any fear, he will attack you.We had hardly got / Hardly had we got into the country when itbegan to rain.③directly, immediately, the moment, the minute that… 一……就He made for the door directly he heard the knock.注意：表示未来情况，主句用将来时，从句用现在时。
八年级英语上册Unit3OurHobbies过去进行时when和while引导的时间状语从句仁爱版
专项语法讲练——过去进行时及when和while引导的时间状语从句【概念引入】Tom: I got a traffic ticket this afternoon.Lily: Were you parking in the wrong place?Tom: No, I was driving too fast.Lily: How fast were you going?Tom: 55 in a 35 mile per hour zone.Lily: Why were you in such a hurry?Tom: I left school late and I was trying to get home before the rush hour.Lily: Did you make it?Tom: No, when the police officer was giving me the ticket, the rush hour started. It took me twice as long to get home.【点睛】请注意以下有特殊标注的地方，这几个句子用的都是过去进行时。
1. Were you parking in the wrong place?2. No, I was driving too fast.3. How fast were you going?4. I was trying to get home before the rush hour.5. No, when the police officer was giving me the ticket…【译文】Tom: 今天下午我被开罚单了。
Lily: 你违章停车了吗？Tom: 不，我超速了。
Lily: 你车速多少迈？Tom: 在限速35英里每小时的地区开了55迈。
Lily: 你为什么这么匆忙？Tom: 我离开学校晚了，我想在高峰时间前到家。
新目标英语八年级上册Unit 3 教学设计
新目标英语八年级上册Unit 3 优质课教学设计单元教学资料总汇内容提要含6大局部：本单元教学目标、知识背景、重点难点分析、词汇讲解、时态等语法突破、言语点19个的讲解。
资料贯穿整个单元，方便教师备课、学生学习、复习。
一. 本单元教学内容：Hello , boys and girls . How's everything goingIn this unit , we will learn to talk about past events and to tell a story .〔一〕言语目标〔Language goals〕1. Talk about past events . 谈论过去发生的事件。
2. Tell a story . 讲述故事。
〔二〕言语结构〔Structures〕1. 过去进行时态：“was / were + doing〞结构Questions and statements with past progressive .2. Adverbial clauses with when and while .以when、while引导的时间状语从句3. 复习一般过去时〔Past tense〕〔三〕目标言语〔Target Language〕1. What were you doing when the UFO arrivedI 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。
2. The barber was cutting my hair when they arrived .3. While he was buying souvenirs , a girl called the police .4. The girl was shopping when the alien got out .5. While the girl was shopping , the alien got out .6. How about youI was doing my homework .7. You're kidding .〔四〕词汇〔Vocabulary〕1. 局部动词的过去式took off〔起飞、脱下〕arrived〔到达〕landed〔着陆〕got out〔下车、下来〕 shouted〔喊叫〕climbed〔爬〕happened〔发生〕ran away〔逃跑〕2. 局部动词的-ing形式cuttingcookingeating getting outgoingmaking shouting sleeping standing studyingtaking talkingclimbing buying coming3. when、while 当……时候4. bathroom〔浴室〕 barber's〔理发店〕 barber shop 理发店 shower 〔淋浴〕 police officer〔警官〕5. another〔另一个〕jump down〔跳下来〕 go up〔向上去〕in front of 〔在……前面〕〔五〕重点、难点分析1. 过去进行时：表示在过去某一时间内正在进行的动作。
unit3-When和while引导的时间状语从句精品PPT课件
Summary
1.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。
2.While总是指一个时间段，从句中必须用 延续性动词。
3.统一时态：主句过去式，从句也是过去 式。
Exercises: fill with “while” or “when”
1. While May was talking on the phone,her sister walked in
2. When Rita bought her new dog,it was wearing a little coat.
3. When I saw Carlos , he was singing louldly. 4. While I was dancing , he was singing louldly. 5. When Linda finally saw David, he was
jumping with a dog. 6. I was clean
Exercises
7. I was walking in the street when the accident happened.
8. When you have a meeting, you should turn off your mobile phone.
Unit3 What were you doing when the UFO arrived?
过去进行时的概念及构成
概念：表示过去某一时刻或某段时间正在进行 的动作
构成：主语+was/were+doing sth+时间状语
指示词：then、 at that time、once等连用，或 者用另一动作来表示过去的时间。
时间状语从句(精品)
2.while引导的时间状语从句， 常译为“与……同时，在…… 期间”，while的从句中用延续 性动词或表示状态的词。 eg. They rushed in while we were discussing problems. Father was cleaning the car while I was playing computer games.
2. 若主从句谓语动词都是陈述 过去，那么主从句都可以用一 般过去时。 She could sing when she was four years old. 她四岁的时候就会唱 歌。
Байду номын сангаас
主句与从句的时态。 在时间状语从句主句和从句之 间的时态一致问题一般分下列两种 情况： 1. 若主句是祈使句，或主句中有情 态动词，或主句中谓语动词是一般 将来时，那么从句用一般现在时。 We will get help from our teachers when we have trouble in the new term. Be careful when you cross the road. The traffic must stop when the lights are red.
Turn
off the light before you go
out.
4.after 意为“在……之后”， 引导时间状语从句时，表示主 句的动作发生在从句的动作之 后。 After you use plastic bags, you mustn’t throw them away.
I
时间状语从句
BOOK III UNIT 1
状语从句 用一个句子 (从句) 来 做另 一个句子 (主句) 的状语，用做 状语的句子就叫做状语从句。 做什么样的状语就叫什么类型 的状语从句。 时间状语从句就是用一个句子 来 做时间状语。
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jumping with a dog. 6. I was cleaning my room When the fire broke
梦想是什么？ 梦想是让你感到坚持就是 幸福的东西。
when和while的用法与区别
1、延续性动词与非延续性动词 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 非延续性动词指动作极为短暂，瞬间结束。 如：start begin hit jump knock等
When与while引导的时间状语从句
out,
Exercises
7. I was walking in the strweheent
the
accident happened.
8. When you have a meeting, you should turn
off your mobile phone.
When
9.
you have PE class, you should wear
yesterday evening.
When与while引导的时间状语从句
While表示“在…时候”、“在…期间”。它 强调主句的动作与从句的动作同时发生，或主 句的动作发生在从句的动作过程中。While从 句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.
sWphoilerts shoes.
10. While I was doing my homework, the phone rWahnilge .
11.
it was raining, the plane took off.
谢谢观赏
What are dreams? Dreams are one of those things that keep you going and happy.
She called while I生，从
句常用进行时，如：
Summary
1.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。
2.While总是指一个时间段，从句中必须用延续 性动词。
3.统一时态：主句过去式，从句也是过去式。
Exercises: fill with “while” or “when”
1. While May was talking on the phone,her sister walked in
2. When Rita bought her new dog,it was wearing a little coat.
Unit3 What were you doing when the UFO arrived?
八道沟镇中学 赵媛霖
过去进行时的概念及构成
概念：表示过去某一时刻或某段时间正在进行的动作
构成：主语+was/were+doing sth+时间状语 指示词：then、 at that time、once等连用，或者用另一动作来表示过去 的时间。
When表示”当…时候”。从句中既可以用延续性动词，又可以用非延续 性动词，这些动词既可以表示动作，又可以表示状态。从句中的动作既 可和主句动作同时发生，又可在主句动作之前或之后发生。
如：Mary was having dinner when I saw her. The boy was still sleeping when his mother got home