状语从句精讲精选课件.ppt

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1、关于状语从句精讲第一页，本课件共有96页在复合句中由从句表示的状语称作状在复合句中由从句表示的状语称作状语从句，它可以用来修饰谓语或是整语从句，它可以用来修饰谓语或是整个句子。个句子。状语从句第二页，本课件共有96页状语从句状语从句状状语语从从句句时间状语从句时间状语从句地点状语从句地点状语从句原因状语从句原因状语从句目的状语从句目的状语从句结果状语从句结果状语从句条件状语从句条件状语从句方式状语从句方式状语从句让步状语从句让步状语从句比较状语从句比较状语从句第三页，本课件共有96页时间状语从句时间状语从句 引导时间状语从句的连词有：引导时间状语从句的连词有：when,while,as,the

2、 moment,before,when,while,as,the moment,before,after,till,until,since,as soon as after,till,until,since,as soon as 等。等。I will tell him when he comes back.I will tell him when he comes back.第四页，本课件共有96页连接词连接词when的用法小结的用法小结1.when引导的时间状语从句的谓语动词引导的时间状语从句的谓语动词可以是可延续可以是可延续也可以是表短暂性动作的动词也可以是表短暂性动作的动词(非延续性非延

3、续性)。如如Whenthefilmended,thepeoplewentback.WhenIlivedthere,Iusedtogototheseashore.2.可用作并列连词，其意义为可用作并列连词，其意义为“那时，这时那时，这时”，相当于，相当于andatthis/thattime。常用于下列句式：。常用于下列句式：(刚要刚要这时突然这时突然)记忆记忆Sb.wasdoingsomethingwasabouttodosth+whenwasonthepointofdoingsth.hadjustdonesthI was walking along the street,when I met

4、himIwasabouttofallasleepwhenmysistercamein.3.还可以表示原因还可以表示原因“既然既然”，相当于，相当于since;consideringthat。如：。如：Why do you walk when you have a car?既然你有车为什么要步行呢？.第五页，本课件共有96页连接词when的用法1 when1 when引导的时间状语从句的谓语动词引导的时间状语从句的谓语动词可以是延续性动词可以是延续性动词也可以是表短暂性动作的动词也可以是表短暂性动作的动词(非延续性非延续性)。When the film ended,the people went

5、 back.When the film ended,the people went back.When I lived there,I used to go to the seashore.When I lived there,I used to go to the seashore.第六页，本课件共有96页2 2 whenwhen表示表示 “就在这时就在这时”在下列结构中，表示某件在下列结构中，表示某件事正在发生或刚刚发生，另一动作同时发生。事正在发生或刚刚发生，另一动作同时发生。be about to dobe about to do when whenbe doingbe doing w

6、hen whenhad donehad done when whenWe were about to start when it began to rain.We were about to start when it began to rain.I was playing computer games when mom came I was playing computer games when mom came in.in.第七页，本课件共有96页连接词while的用法1.while1.while引导的动作必须是持续性的，在引导的动作必须是持续性的，在期间，往期间，往往指一段时间。如：往指

7、一段时间。如：While we were talking,he came in.Please dont talk so loud while others are working.第八页，本课件共有96页2.while2.while作为并列连词，意为作为并列连词，意为“而，却而，却”，侧重主，侧重主句动作和从句动作相对比。句动作和从句动作相对比。We are cleaning the classroom while We are cleaning the classroom while they are playing the footballthey are playing the foot

8、ball.3.while3.while可表示尽管，相当于可表示尽管，相当于althoughalthough。第九页，本课件共有96页while 含义：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.(while=_)While I really dont like art,I find his work impressive.(while=_)While there is life there is

9、hope.(while=_)whenalthoughas long as but第十页，本课件共有96页连词when，while，as的用法1 1whilewhile引导的时间状语从句的谓语动词必须是可延引导的时间状语从句的谓语动词必须是可延续的，续的，而而whenwhen引导的时间状语从句的谓语动词是引导的时间状语从句的谓语动词是可延续的，也可延续的，也 可以是表短暂性动作的动词。可以是表短暂性动作的动词。When/While he was eating his breakfast,he When/While he was eating his breakfast,he heard the

10、doorbell ring.heard the doorbell ring.When I stopped my car,a man came up to me.When I stopped my car,a man came up to me.(不可延续，短暂性动词，只可以用不可延续，短暂性动词，只可以用whenwhen，不可，不可用用while)while)第十一页，本课件共有96页2 2表示表示“随着随着”，连词用，连词用asas，不用，不用whenwhen或或whilewhile。AsAs the day went on,the weather got worse.the day wen

11、t on,the weather got worse.3 3如果主句表示的是短暂动作，而从句用延续如果主句表示的是短暂动作，而从句用延续性动作的进行时态表示在一段时间内正在进行性动作的进行时态表示在一段时间内正在进行的动作时，的动作时，when,while when,while 与与as as 可互换使用。可互换使用。When/While/As When/While/As I was walking down the I was walking down the street,I came across an old friend of mine.street,I came across an

12、 old friend of mine.第十二页，本课件共有96页4.4.从句动作发生在主句动作之前时，只能用从句动作发生在主句动作之前时，只能用whenwhen引导这个从句，不可用引导这个从句，不可用asas或或whilewhile。WhenWhen you have finished your work,you may have a you have finished your work,you may have a rest.rest.WhenWhen the children had gone to bed,she began to the children had gone to b

13、ed,she began to prepare her lessons.prepare her lessons.第十三页，本课件共有96页连接词beforeWehadsailedfourdaysandfournightsbeforewesawland.Wehadntrunamilebeforehefelttired.Pleasewriteitdownbeforeyouforgetit.BeforeIcouldgetinaword,hehadmeasuredme.“才”“不到就”“趁”“还没来得及”第十四页，本课件共有96页BeforeBefore从句中谓语不用否定式从句中谓语不用否定式 Bef

14、ore they reached the station,the train Before they reached the station,the train had gone.had gone.第十五页，本课件共有96页句型句型It will be/wasIt will be/was一段时间一段时间beforebefore“还要还要过多久才过多久才”句型句型It will be/was notIt will be/was not一段时间一段时间beforebefore“多久就多久就”It will be two years before he leaves the It will be t

15、wo years before he leaves the country.country.It wasnIt wasnt two years before he left the t two years before he left the country.country.第十六页，本课件共有96页连接词since在在it is/has been+it is/has been+段时间段时间+since+since从句中，时间的从句中，时间的计算从计算从sincesince从句的动作完成或状态结束时算起。从句的动作完成或状态结束时算起。It is three years since I smo

16、ked a cigar.It is three years since I smoked a cigar.It is three years since I began to smoke.It is three years since I began to smoke.我不吸烟有三年了。我不吸烟有三年了。我吸烟有三年了。我吸烟有三年了。第十七页，本课件共有96页since在it is/has been+段时间+since从句中，时间的计算从since从句的动作完成或状态结束时算起。如：It is three years since she was in our class.It is thre

17、e years since he lived here 她离开我们班有三年了。他不住这儿有三年了。比较it is three years since I smoked a cigar.It is three years since I began to smoke.我不吸烟有三年了。我吸烟有三年了第十八页，本课件共有96页No sooner than-No sooner than-一一就就He had no sooner arrived than he went He had no sooner arrived than he went away again.away again.No soo

18、ner No sooner had he arrived thanhad he arrived than he went away again.he went away again.no soonerno sooner than than 用于句首要求倒装用于句首要求倒装Hardly Hardly whenwhenScarcely Scarcely whenwhen第十九页，本课件共有96页till，until 和not until的用法1.until/till引导时间状语从句用于肯定句时，主句的动词引导时间状语从句用于肯定句时，主句的动词 是延续性动词，表示动作或状态一直持续到是延续性动词，

19、表示动作或状态一直持续到 until/till所表示的时间，意为所表示的时间，意为“某动作一直延续到某时某动作一直延续到某时 间点才停止间点才停止”。We waited until he came.We waited until he came.2 2用于否定句时，主句谓语动词是非延续性动词，用于否定句时，主句谓语动词是非延续性动词，从句从句 为肯定，意为为肯定，意为“某动作直到某时间才开始某动作直到某时间才开始”He wonHe wont go to bed till/until she returns.t go to bed till/until she returns.第二十页，本课件共

20、有96页3till不可以置于句首，而不可以置于句首，而until可以。可以。如：如：4notuntil句型中的强调和倒装说法：句型中的强调和倒装说法：Until you told me I had no idea of it.Until you told me I had no idea of it.It was not until you told me that I had It was not until you told me that I had any idea of it.any idea of it.Not until you told me did I have any id

21、ea of Not until you told me did I have any idea of it.it.第二十一页，本课件共有96页 It wasnt until nearly a month later _ I received the managers reply.A.since B.when C.as D.that2.It was nearly a month _I received the It was nearly a month _I received the managermanagers reply.s reply.3.It was nearly 9 oIt was

22、nearly 9 oclock clock _ _ _I received the I received the managermanagers reply.s reply.4.It was nearly at 9 oIt was nearly at 9 oclockclock _I received the _I received the managermanagers reply.s reply.beforewhenthat第二十二页，本课件共有96页考点考点:易混淆句型易混淆句型itis+时间时间+sincebeforewhenthatItisfiveyears_hefinishedhi

23、sresearch.It was five years _he finished hisresearch.Itwasfiveyearslater_hefinishedhisresearch.Itwas5oclock_hegothome.Itwasat5oclock_hegothome.whenthatsincebeforethat第二十三页，本课件共有96页Once you see him,you will Once you see him,you will never forget him.never forget him.Once -Once -一但一但就就第二十四页，本课件共有96页引导

24、状语从句的连接词有引导状语从句的连接词有:If,unless,as long as,in case,If,unless,as long as,in case,provided that,on condition thatprovided that,on condition that条件状语从句第二十五页，本课件共有96页If-如果如果If you dont hurry up,you will miss the plane.If it snows tomorrow,the flight will be canceled.If you leave at 6 oclock tomorrow morn

25、ing,youd better get to bed now.第二十六页，本课件共有96页Unless-如果不如果不,除非除非=if notWe cant get there on time unless we book the earliest flight=We cannot get there on time if we dont book the earliest flight.第二十七页，本课件共有96页Dont trouble trouble unless trouble troubles you.He will not join us unless he changes his

26、mind.第二十八页，本课件共有96页As long as-只要只要We will succeed as long as we keep on trying.You cant play games as long as you remember the rules.A man is not old as long as he is seeking something.第二十九页，本课件共有96页As(so)far as-据据所知所知As far as I know,he speaks English very well.As/So far as I know,he is an expert o

27、n DNA.第三十页，本课件共有96页In case-假使假使,如果如果 万一万一The plane cannot take off in case it rains.Send us a message in case you have any difficulty.第三十一页，本课件共有96页Provided that 如果如果,有时省略有时省略 thatThe plane will be in good condition provided that it is taken care of carefully.You can become a stewardess provided tha

28、t you are in good shape and you have got the proper education.第三十二页，本课件共有96页On condition that-条件是条件是He said that he would come to the meeting on condition that no one asked him to speak.The mother promised to the son to buy him a toy airplane on condition that he passes his English test.第三十三页，本课件共有9

29、6页注注:主从句的动作发生在将来时，主从句的动作发生在将来时，则主句用将来时则主句用将来时,从句用一般现从句用一般现在时。在时。If he arrives tomorrow,I will be waiting for him at the airport.He said he would not leave unless it was fine next day.第三十四页，本课件共有96页地点状语从句地点状语从句 地点状语从句只有两个连词地点状语从句只有两个连词:Where,wherever第三十五页，本课件共有96页Where-在地方Put the medicine where you c

30、an easily get it.Where that high building stands,there used to be some low,deserted houses.Where there is a will,there is a way.第三十六页，本课件共有96页Wherever-无论哪里无论哪里He follows her wherever she goes.Wherever you are,I will be right there waiting for you.第三十七页，本课件共有96页 在地点状语从句之前，不要使用介词。【误】You should put the

31、 book at where it was.【正】You should put the book where it was.你应该把书放在原来的地方。【误】We should go to where we are needed most.【正】We should go where we are needed most.我们应该到最需要我们的地方去。第三十八页，本课件共有96页原因状语从句原因状语从句 because,as,since,now that,和和considering that,for,seeing that 这六个连词都用于表示这六个连词都用于表示表示原因表示原因,但在语气上一个比

32、但在语气上一个比一个弱一个弱.第三十九页，本课件共有96页Because-因为因为,通常从句放在通常从句放在主句后主句后.Mr Smith was very upset because he couldnt find his luggage.He said that he couldnt work because the computer was out of order.第四十页，本课件共有96页 because 和和for的区别。的区别。for 是并列连词，只用于连接表示原因的分句，因此不能用于句是并列连词，只用于连接表示原因的分句，因此不能用于句首。首。because表示原因时，可位于句

33、首。表示原因时，可位于句首。【误误】For he did not obey the rules,he was punished.【正正】Because he did not obey the rules,he was punished.第四十一页，本课件共有96页As-因为因为,通常放在句首通常放在句首As it is quite windy today,he decidesAs he is honest and modest,all his friends like him.第四十二页，本课件共有96页Since-既然既然 因语气较弱因语气较弱,常常译为既然译为既然Since everybo

34、dy has come,we can set off.Since the purser didnt tell us what to do,we can relax.第四十三页，本课件共有96页Now that-既然既然Now that you are here,you can join us.Now that all airlines offer discount prices,we should do the same.第四十四页，本课件共有96页considering that-顾及到顾及到 Considering that they are just beginners,they are

35、 doing quite a good job.第四十五页，本课件共有96页seeing that-由于由于 Seeing(that)quite a few people were absent,we decided toput the meeting off.第四十六页，本课件共有96页结果状语从句结果状语从句引导结果状语从句的连词有：引导结果状语从句的连词有：that,so that,sothatsuchthat第四十七页，本课件共有96页So that-太太以至于以至于 so 后面应用形容词或副词后面应用形容词或副词,有时省有时省略略so只用只用thatBoeing 747 is so

36、large that people like to call it jet bomb.The flight scheduled so early that nobody wanted to look on it.第四十八页，本课件共有96页So that-因而，以便，为了因而，以便，为了 有时有时so 可以省去可以省去Can you move your luggage a little bit away so that I can put mine in the overhead bin too.Speak louder please so that the people at the bac

37、k can hear you.第四十九页，本课件共有96页Such that-太太以至以至于于 用法与用法与sothat相同，但相同，但such 后面应用名词。后面应用名词。The foreign visitor was such a fast speaker that nobody could understand him.第五十页，本课件共有96页 6.目的状语从句目的状语从句 引导目的状语从句的主要连词有引导目的状语从句的主要连词有:that,so that,in order that,for fear that,lest第五十一页，本课件共有96页Lets take the front

38、 seats(so)that we may see more clearly.(So)that-以便以便,从句中常常使从句中常常使用一些情态动词，如：用一些情态动词，如：can,could,may,might,should等等 第五十二页，本课件共有96页in order that-为了为了,与与so that 相同从句中常常使用一相同从句中常常使用一些情态动词，如：些情态动词，如：can,could,may,might,should等等 School was closed early in order that the children might go home ahead of the

39、storm.第五十三页，本课件共有96页for fear that-生怕生怕;为了防止为了防止(某事发生某事发生)He took the name down for fear that he should forget it.The instructor emphasized on the issue three times for fear that the students did not pay enough attention to the problem.第五十四页，本课件共有96页in case -万一万一 Better take more clothes in case the

40、weather is cold.You should bring a dictionary in case you need it.Please take an umbrella in case it rains.第五十五页，本课件共有96页Lest-以防万一以防万一The man decided to tell his boss the fact lest he would be angry with him.The manager of the workshop asked his staff to work overtime lest they wouldnt finish the ta

41、sk on time.第五十六页，本课件共有96页比较状语从句比较状语从句 引导比较状语从句的连词有：引导比较状语从句的连词有：Asas,not so(as)as,.than,the more the more.第五十七页，本课件共有96页AsAsasas-像像一样一样If you donIf you dont want to miss the flight,you need t want to miss the flight,you need to be at the airport as early as to be at the airport as early as possiblep

42、ossible.My grandma told me that her eyesight was as My grandma told me that her eyesight was as good as good as 10 years before10 years before.Cultivation to the mind is as necessary as Cultivation to the mind is as necessary as food food for the bodyfor the body.第五十八页，本课件共有96页Not so(as)Not so(as)as

43、 as-不像不像The job is not so difficult as The job is not so difficult as I thought it would beI thought it would be.The flight was not so/as harmful as The flight was not so/as harmful as the captain the captain predictedpredicted.第五十九页，本课件共有96页thanthan-比比怎么样，用于事物间的比怎么样，用于事物间的比较，较，more more 后面用形容词或副词后面

44、用形容词或副词People believe that being a stewardess is better People believe that being a stewardess is better than most of the other jobs.than most of the other jobs.I personally think that the American movies are I personally think that the American movies are more interesting than Chinese onesmore inte

45、resting than Chinese ones第六十页，本课件共有96页The more,the more-越越 越越The more he listened to that song,the less he enjoyed it.The more things a man is ashamed of,the more respectable he is.第六十一页，本课件共有96页必背：常见的比较句型。Hisfatheristwicedoubleasoldashe(is).Hisfatheristwotimesolderthanhe.他爸爸的年龄是他的两倍。他爸爸的年龄是他的两倍。Our

46、newschoolisthreetimesbiggerthantheoldone.我们的新学校比老学校大三倍。我们的新学校比老学校大三倍。Ournewschoolisfourtimesasbigastheoldne.我们的新学校是老学校的四倍大。我们的新学校是老学校的四倍大。Ournewschoolisfourtimesthesizeoftheoldone.我们的新学校是老学校的四倍。我们的新学校是老学校的四倍。第六十二页，本课件共有96页8.让步状语从句让步状语从句 引导让步状语从句的连词有：引导让步状语从句的连词有：Although,though,as,even if,even thoug

47、h,no matter,however,whatever,while,whether第六十三页，本课件共有96页Although,though-虽然虽然 although 和和though 可以互换，可以互换，但但although 常放在句首。常放在句首。Though可以用于倒装。可以用于倒装。Although it was raining,the plane managed to take off.Although it was not his fault,he took all the blame.第六十四页，本课件共有96页Though he did his best,he didnt

48、succeed.Child though he was,he did quite well.第六十五页，本课件共有96页As-尽管尽管 as 引导让步状语从引导让步状语从句时，句子通常倒装。可与句时，句子通常倒装。可与though 互换。互换。Busy as he is,he never misses a football match.Hard as she works,she makes little progress.第六十六页，本课件共有96页Even if/even though-即使即使Even if you dont like your boss,you should do you

49、r work.Even if you are not fond of flowers,you shouldnt miss the chrysanthemum exhibition.第六十七页，本课件共有96页Even though I might be wrong,I will go my way.Even though his dean didnt mean it,he still felt embarrassed.第六十八页，本课件共有96页However-不论，不论，however 引导让步状语从句时，句子引导让步状语从句时，句子通常倒装通常倒装He couldnt get there

50、on time however fast he drove.The father couldnt make his daughter smile however hard he tried.第六十九页，本课件共有96页N o matter(what,when,where,how)-无论（什么，无论（什么，何时，何地，怎样）何时，何地，怎样）The old man wouldnt believe anything no matter what you said.Please tell me the result no matter when you get it.第七十页，本课件共有96页He