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1、1.时间状语从句1)由连词when,while,as,as soon as,before,after,since,till/until等引导。主句用将来时，从句常用一般现在时表将来I will tell him when he comes back.第1页/共41页2)while,when,as辨析辨析While引导的时间状语从句引导的时间状语从句只指一段时间只指一段时间，强调某一段时间内，主从句动作强调某一段时间内，主从句动作同时同时发发生。从句动词常是生。从句动词常是延续性延续性的的 When既可以指既可以指一个时间点一个时间点,也可以是一段也可以是一段时间，时间，可表示主从句的动作可表示
2、主从句的动作同时同时或或先后先后发生。从句动词发生。从句动词可以是延续性可以是延续性的，的，也可也可以是非延续性以是非延续性的。的。As强调主句强调主句从句动作相并发生从句动作相并发生,译为译为”一一边边一边一边”第2页/共41页When he returned,his wife was cooking.While he was reading,his wife was cooking.He hurried home,looking behind as he went.第3页/共41页对比训练1_heheardthis,hegotveryangry.2.ImetLucy_Iwaswalking
3、alongtheriver.3._achild,helivedinthecountryside.A.whenB.whileC.as第4页/共41页另外另外,when/while还作并列连词还作并列连词,连接并列分句连接并列分句,while表示表示“而而,可是可是”如如:IlikereadingwhilemywifeenjoyswatchingTV.when表示表示“就在这时就在这时”在下列结构中，表示某在下列结构中，表示某件事正在发生或刚刚发生，另一动作同时发生。件事正在发生或刚刚发生，另一动作同时发生。1.be about to do when2.be doing when3.had don
4、e whene.g.We were about to start when it began to rain.I was playing computer games when mom came in.第5页/共41页while的用法小结：While I was walking down the street,I came across an old friend.(while=_)He likes pop music,while I am fond of folk music.(whileWhile I really dont like art,I find his work impress
5、ive.(while=_)whenalthoughbutbut第6页/共41页Wewereabouttoleave_itbegantorain.2.ShethoughtIwastalkingaboutherson,_,infact,Iwastalkingaboutmyson.3.HardlyhadIfinishedmycomposition_thebellrang.A.whenB.whileC.asD.during第7页/共41页3)until/till(不用于句首不用于句首)“延续的动词（延续的动词（肯定式肯定式）+until”表示表示“直到直到为止为止”I waited for him u
6、ntil he came back.“非延续性动词（非延续性动词（否定式否定式）+until”表示表示“直到直到 才才”He didnt go to bed until he finished his work.Not until he saw it himself did he believe it.注意注意:not until 在句首时要倒装在句首时要倒装第8页/共41页4)表示表示“一一就就”的句型的句型(1)as soon as,once,the moment/minute/second,immediately/directly/instantlyAs soon as he comes
7、,Ill tell him.The moment I saw him,I recognized him.I left immediately the clock struck 5.(2)on/upon doing/on(upon)ones+nOn arriving at the station,the thief was arrested.On his arrival in Paris,he was recognized as a famous person.第9页/共41页5)Every time,each time等也可以引等也可以引导时间状语从句导时间状语从句Every time I c
8、aught a cold,I had pain in my head.(3)no sooner than/hardly when/scarcely whenNo sooner had they reached home than it started to rain.Hardly had I entered the room when the telephone rang.第10页/共41页连接词连接词before的小结：的小结：1.We had sailed four days and four nights before we saw land.2.We hadnt run a mile
9、before he felt tired.4.Before I could get in a word,he had measured me.“才才”“不到不到就就”“还没来得及还没来得及”It will be a long time beforeIt wont be long beforeIt is/has been two years since sb did sth.第11页/共41页一、若since引导的状语从句的谓语动词是终止性的过去时，则从句表示的时间是“从动作开始的那一时刻起”。如：Hehasstudiedveryhardsincehecametoourschool.自从他来到我
10、们学校，他学习就非常努力。Wehavebeenmissingthemsincetheylefthere自从他们离开这里，我们就一直很想念他们。第13页/共41页二、若since引导的状语从句的谓语动词是持续性动词或表示状态的动词的过去时时，则从句表示的时间是“从那持续动作或状态结束时算起”。如：IhaventheardanynoisesinceIslept.Sleep为持续性动词，sleep的动作结束时，即“醒来”时，这句应译为“我醒后还未听到任何声音”。JohnisnowwithhisparentsinNewYork,itisalreadythreeyearssincehewasateach
11、er约翰现在和父母一起住在纽约，他不当教师已经三年了。第14页/共41页HowlongisitsinceyoulivedinShanghai?你离开（没住在）上海多久了延续性；不多长时间了ItishalfamonthsincehewasaLeaguemember.他退团（不当团员）半个月了。ItsbeenquitesometimesinceIwaslastinLondon我离开伦敦已很长时间了。比较：HehaswrittentomefrequentlysinceIwasill.自从我病愈以来，他屡次给我写信。（从句谓语为状态动词）HehaswrittentomefrequentlysinceI
12、fellill.自从我生病以来，他就屡次给我写信。（从句谓语为终止性动词）第15页/共41页llletyouknow_hecomesback.A.beforeB.becauseC.assoonasD.although It is about ten years _ I met you last.A.since B.forB.C.when D.as_ we got to the station,the train had left already.A.If B.Unless C.Since D.When第16页/共41页We didnt go home _ we finished the wor
13、k.A.since B.until C.because D.though.Hewasabouthalfwaythroughhismeal_afamiliarvoicecametohisears.A.whyB.whereC.whenD.whileItwasnot_shetookoffherdarkglasses_Irealizedshewasafamousfilmstar.A.when;thatB.until;thatC.until;whenD.when;then第17页/共41页Scientistssayitmaybefiveorsixyears_itispossibletotestthism
14、edicineonhumanpatients.A.sinceB.afterC.beforeD.wheWhydidntyoutellhimaboutthemeeting?Herushedoutoftheroom_Icouldsayaword.A.beforeB.untilC.whenD.after第18页/共41页_Iacceptthatheisnotperfect,Idoactuallyliketheperson.A.WhileB.SinceC.BeforeD.UnlessDidyouremembertogiveMarythemoneyyouowedher?Yes.Igaveittoher_I
15、sawher.A.whileB.themomentC.suddenlyD.once第19页/共41页2.让步状语从句让步状语从句 引导词有：引导词有：although,though,even if/though,as,while（尽管）（尽管）whetheror(无论无论还是还是),whoever=no matter who whenever=no matter whenwhatever=no matter whatwherever=no matter wherehowever=no matter how第20页/共41页1)as 引导的让步从句要倒装，句型为：引导的让步从句要倒装，句型为：形
16、容词形容词/副词副词/名词（不带冠词）名词（不带冠词）/动词动词（原形）（原形）+主语主语+谓语谓语Young as he is,he knows a lot.Much as I like it,I cant afford it.Farmer as he is,he is well-educated.Try as I might,I couldnt lift the stone.2）although不倒装，不倒装，though可倒装也可可倒装也可不倒装不倒装,as 必须倒装必须倒装 Although/Though he was ill he didnt stop working.第21页/共4
17、1页3）no matter+疑问句引导让步状语从句疑问句引导让步状语从句No matter what happened,he shouldnt mind.=Whatever happened,he shouldnt mind.No matter who you are,you should obey the social rules.=Whoever you are,you should 4)whether orWhether you believe it or not,it is true.whether or不管还是a.Whethertheweatherisgoodorbad,theywi
18、llsetoffastheyplanned.B.Whetherhedrivesortakesthetrain,hewillbehereontime.第22页/共41页1、Hetriedhisbesttosolvetheproblem,_difficultitwas.A.howeverB.nomatterC.whateverDalthough2、Theoldtowermustbesaved,_thecost.AhoweverBwhateverCwhicheverDwherever对比训练31.Child_sheis,sheknowalot.2.Hedidtheexperiment_hewasto
19、ld.3.Thepianosintheothershopwillbecheaper,butnot_good.A.duringB.asC.soD.thoughE.bothBandC第23页/共41页3.地点状语从句地点状语从句引导词有引导词有:where,wherever注意：不要混同于注意：不要混同于where 引导的定语从句引导的定语从句与定语从句的区别：与定语从句的区别：where引导定语从句，引导定语从句，从句前有一个表示地点的名词。从句前有一个表示地点的名词。Go back where you came from.Go back to the village where you cam
20、e from.(有志者，事竟成）有志者，事竟成）Ill follow you wherever you go.Where there is a will,there is a way.第24页/共41页Whenyoureadthebook,youdbettermakeamark_youhaveanyquestion.AatwhichBatwhereCtheplacewhereDwhereWhenyoureadthebook,youdbettermakeamarkattheplace_youhaveanyquestion.AwhichBatwhereCtheplacewhereDwhere第25
21、页/共41页4.原因状语从句由because,since,now that,as引导。(1).because 语气最强，用来回答why提问，可用在强调句型中,引导的从句表示直接的、根本的原yin It was because he was ill that he didnt go with us.(2).Since语气比because弱，表示关系上的自然结果，一般译成“既然，鉴于”（往往放于主句之前）表示显然的或已知的原因.Since no one is against it,lets carry out the plan.（既然没人反对,)第26页/共41页(3).as语气最弱，只说明一般的
22、因果关系（可放于主句之前，也可放于主句之后）Wear strong shoes as we shall do a lot of walking today.与since没多大区别(4).for也可以表示原因，不是说明直接原因，而是对某种情况加以推倒，用于表示补充说明理由。He must be ill,for he is absent today.(5).now that用来说明一种新情况，然后加以推理，now that放于句首时，that可省略。Now(that)everybody is here,lets begin.第27页/共41页_thedaywenton,theweathergotw
23、orse.A.WithB.SinceC.WhileD.AsHetookoffhiscoat_hefelthot.A.becauseB.asC.ifD.since第28页/共41页5.目的状语从句目的状语从句引导词：引导词：in order that,so that(为了）为了）,for fear that,in case,谓语动词常含有谓语动词常含有can,could,may,might,will,would等情等情态动词。态动词。Ill speak slowly so that everybody can understand me.He wrote the name down for fe
24、ar that(in case)he would forget.第29页/共41页in casein case与与for fear thatfor fear thatI will have to stay at home this evening _ my teacher comes.Students of Class 13 are working hard theses days _ they might fail the exam.in casefor fear thatbecause of the possibility of sth happeningto avoid the dang
25、er of sth happening第30页/共41页Annlistenedcarefully_shecoulddiscoverwhatsheneeded.A.suchthatB.inorderthatC.becauseD.eventhough11.Ihurried_Iwouldntbelateforclass.A.sinceB.sothatC.asifD.unless第31页/共41页6.结果状语从句：结果状语从句：引导词有：引导词有：sothat,suchthat,so that 常用句型：常用句型：1)so+adj.(adv.)+that2)so+adj.+a(an)+n.+that3
26、)Such+a(an)+adj.+n.+that4)Such+adj.+n(s)+thatHe spoke so fast that I couldnt follow him.It was such a good day that we all went swimming.第32页/共41页Heleftin_ahurry_heforgottolockthedoor.A.such,thatB.so,thatB.C.such,asD.so,when.Farmers rotate(轮作)their crops _ the soil will remain fertile.A.so that B.be
27、cause of C.in order to D.rather than It was _ a hundred people looked lost in it.A.so large a room that B.so large roomC.a such large room D.such large a roomHe has _ little education that he cant teach _ little children.A.so;such B.too;such C.a;so D.very;so 第33页/共41页7.条件状语从句条件状语从句1.由由if,unless(=if
28、not),so/as long as(只要只要),suppose/supposing(假设，假设，如果如果),in case(以防以防),on condition that,only if ,if only引导。引导。e.g.You may use the room as long as you clean it up afterwards.2.“祈使句祈使句+and/or/or else/otherwise”引导的结果句，祈使句在实际意义上相引导的结果句，祈使句在实际意义上相当于条件状语从句。当于条件状语从句。Use you head,and you will find a way.Get
29、up now,or you will be late.第34页/共41页1、TheWTOcannotliveuptoitsname_itdoesnotincludeacountrythatishometoonefifthofmankind.AaslongasBwhileCifDeventhough2、Itisknowntoallthat_youexerciseregularly,youwontkeepgoodhealth.A.unlessB.wheneverC.althoughD.ifunless相当于ifnot，意思是“除非”“如果不就”。这也是高考的热点之一。复习时也应给予高度重视。1、_
30、Icansee,thereisonlyonepossiblewaytokeepawayfromthedanger.A.AslongasB.AsfarasC.JustasD.Evenif2、IalwaystakesomethingtoreadwhenIgotothedoctors_Ihavetowait.AincaseBsothatCinorderDasif第35页/共41页8.方式状语从句方式状语从句 引导词有引导词有:as(如同如同),as if/though(好像好像)They are talking as if(as though)they were old friends.注意：注意：
31、as，like 都表示都表示“像像”，I work as others do.I work like others.as 是连词是连词，后加句子，后加句子 like 是介词，后加名词、代词、名词短语是介词，后加名词、代词、名词短语第36页/共41页9.比较状语从句比较状语从句由由as as,not as/soas,than,the more the moreHe ran as far as he could.The harder you try,the better you will understand.第37页/共41页四.状语从句的时态问题问题1：1、The house could fa
32、ll down soon if no one_ some quick repair work.A has done B is doing C does D had done 2、It is almost five years _ we saw each other last time.A.before B.since C.after D.when 在条件，时间和让步从句中，用一般现在时表示一般将来时，用现在完成时表将来完成时，用一般过去时表过去将来时。在 since 引导的时间状语从句中，动词一般都用一般过去时，而主句常用现在完成时。第38页/共41页五、状语从句的倒装问题问题1：1、So d
33、ifficult _ it to live in an English-speaking country that I determined to learn English.A.I have felt B.have I felt C.I did feel D.did I feel2、Not until all the fish died in the river _ how serious the pollution was.A.did the villagers realize B.the villagers realized C.the villagers did realize D.didnt the villagers realize第39页/共41页状语从句的倒装一般有下面几种情况：否定词开头；so 加 adj.开头；as/though引导的让步状语从句。Hardly had he got to the station when the train left.No sooner had he got to the station than the train left.Child as he is,he can speak seven foreign languages.第40页/共41页感谢您的观看！第41页/共41页