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语用学预设.ppt

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1、Presupposition 预设,思考: 我们在这句话中可以得到哪些信息?,老师肯定了她的开题报告。,老师肯定了她的开题报告。1、“老师”和“她”存在、有所指 2、她写做了开题报告这两个信息都不是这句话陈述的内容,也不是说话人打算传递给听话人的新信息,而是说话人认定或假定听话人知道的信息,说话人不打算就这个问题与听话人进行探讨。这两个信息是句子预设的。,大纲,1、背景 2、定义 3、分类 4、属性 5、预设与蕴涵、会话含义区别 6、触发语 7、特点 8、功能,1. 背景,1.1. 弗雷格的预设说 1.2罗素的摹状词说 1.3斯特劳森的预设理论 1.4. 麦考莱和斯托内克尔的语用预设定义,1.

2、1. 弗雷格的预设说,Like many other important notions in pragmatics, presupposition has its roots in philosophy. Any discussion of it cannot but mention its philosophical tradition. Gottlob Frege, the first philosopher who brought presupposition to the notice of the scholarly world, published an article “On

3、Sense and Reference” in 1892. He went on to examine the sense and reference of sentences. 1892年德国哲学家、数学家高特罗伯弗雷格在论意义和指称中提出“预设”这个术语来解释语义中的逻辑现象。,弗雷格认为:“如果人们陈述某些东西,当然总要有一个假设,即所有的简单的或复杂的专有名称有一个意谓。(If anything is asserted there is always an obvious presupposition that the simple or compound proper names u

4、sed have a reference.)”也就是说,一个句子预设了它所包含的专有名称有所指,即预设了单独名称所表示的对象存在。例如我们说“小明学习很用功。”预设为有“小明”这个人存在。,1.1. 弗雷格的预设说,真假值一个句子所描述的东西有真有假,而关于一个句子所描写的东西的真假状况我们称为真假值(truth value)。例如,句子“太阳会发光”,这是真的,所以句子 的真假值为真。而句子“太阳不会发光”的真假值为假。对于二值逻辑来说,一个逻辑句子(命题)非真即假。而多值逻辑中,真假值并不只有真与假的区分,如真,可能,假或必然真,可能真,可能假,必然假,1.1. 弗雷格的预设说,(1) K

5、epler died in misery.(2) There was a man called Kepler. We can infer (2) from (1).(3) Kepler didnt die in misery. (1) & (3) presupposes (2). ( Johann Kepler,discovered the elliptical shape of the planetary obits开普勒是德国天文学家,数学家。1571年12月27日生于魏尔,1630年11月15日卒于雷根斯堡。发现了行星沿椭圆轨道运行,并且提出行星运动三定律。 )句(1)没有直接告诉我们句

6、(2),但是句(2)是使用句(1)的先决条件。如果Kepler 不存在,我们不可以说他悲惨地死去了或者任何关于他的事情如句(3),那么句(1)和句(3)都是没有意义的,即没有真假值。,1.1. 弗雷格的预设说,1.2罗素的摹状词说,英国哲学家罗素(Bertrand Russell)1905年提出“摹状词理论描写理论”,反对弗雷格的预设理论。认为当一个摹状词没有专指时,包含它的句子仍然有真假值。他认为像“某某人”这些定指描写不像想象的那样只有简单的逻辑对应形式,虽然在自然语言中是以主语形式出现,但是在逻辑形式中不是逻辑主语,而是对应一系列命题的联接。(罗素用“The King of France

7、 is wise”解释. 由于翻译成汉语时为“法国国王很聪明”,“很”字的加入加大理解难度,所以转换为“现在的法国国王是秃子”),现在的法国国王是秃子有一事物是现在的法国国王至多有一事物是现在的法国国王这个事物是秃子 存在法国国王句现在的法国国王是秃子的逻辑式不是 而是复杂的 ,即句可分析为句有一事物是现在的法国国王至多有一事物是现在的法国国王这个事物是秃子,可以看出句子包括了现在的法国国王有所指。当现在的法国国王不存在而没有所指时,句由于前两个支命题为假而整个命题为假,又因为句与句等值,所以句也是假的。,1.2罗素的摹状词说,罗素又分析了句现在的法国国王是秃子的否定命题句 现在的法国国王不是

8、秃子。他认为这个命题是含混的,认为可以有两种不同的含义,一种是设定存在一个法国国王,且他不是秃子;另一种理解(不很通常)是对存在一个法国国王和他是秃子的真实性都加以否定,即法国国王不是秃子因为根本没有这样一个人 根据罗素的逻辑分析方法,任何包含摹状词的语句都可以分析为含有存在命题的合取式,所以在摹状词指称对象不存在的情形下,包含它的论断仍然具有真假值。,1.2罗素的摹状词说,1.3斯特劳森的预设理论 (语义预设),英国牛津大学学者斯特劳森(P.F.Strawson)认为:含有摹状词的命题预设摹状词所指称的对象存在。他认为,说话人在使用the King of France这一指称词语时是假定听话

9、者能理解或识别出谈论中的所指的,说话者并没有断言这一所指确实存在,仅仅是预设它的存在,这个预设在相应的否定命题中同样存在。如果预设为假,也就是找不到一个个体为摹状词所指称时,命题不是假而是没有真值。因此,在斯特劳森看来,预设是一个命题获得真值的条件。斯特劳森批评罗素混淆了一个语句和该语句在具体语境下的使用,他认为意义是语句或语词的一种功能,而提到指称,真或假则是该语句的使用或语词的使用的功能。,斯特劳森认为,一个摹状词有所指是以该摹状词为助词的论断有真假的必要条件。他认为语句只有含义没有所指,因此语句没有真假,只有论断才有真假。其次,斯特劳森认为当人们做出一个包含摹状词的论断时,总是认为这个摹

10、状词有所指,当一个摹状词无所指时,人们就不会做出包含这个摹状词的判断。简言之,他区分了句子和句子的使用,及句子没有真假,只有句子做出的陈述才有真假。,1.3斯特劳森的预设理论,1.4. 麦考莱和斯托内克尔的 语用预设定义,美国学者麦考莱(J.D.M.Cawley)明确了语义预设和语用预设的区别:语义预设是两个命题之间的关系,而语用预设是话语同一个命题之间的关系。美国学者斯托内克尔(Robert stalnaker)从语境中的说话者和听话者的假定和相信来定义预设。在他看来,“预设本质上是人的一种命题态度,更确切地说,它是一种接受某事物为真的态度”他对语用预设的概念作了深入的研究,提出了语用预设的

11、定义:“一个说话者在谈话中的一个给定的时间里预设P,仅当在他的语言行为中,他倾向于这样的行动,好像他认为P当然真,也好像他假定了他和他的听众一样地认为P当然真。”,2. 定义,一种关于预设的定义很窄并且是句子指向性的: a necessary precondition for the sentence to be true. 另一种定义十分宽泛并且是说话人指向性的:anything the speaker assumes to be true before making the utterance.inferences(推论,推断) about what is assumed to be tr

12、ue in the utterance rather than directly asserted to be true.,2. 定义,语用学中的预设是一种“言外之意”,是话语之外隐含的某种信息,它不属于话语的基本信息。语用预设也叫语用前提,往往就包含在话语的意思之中。语用预设是交际双方都早已知道的常识,或至少听到话语之后总能根据语境推断出来的信息。,3. 分类,a、依据依赖语境与否 (斯托内克尔) 1)语义预设2)语用预设b、依据预设内容(瑞典逻辑学家埃尔伍德、安德森和达尔语言学中的逻辑)1)存在预设2)事实预设3)种类预设4)性质预设5)信念预设,语义预设是在逻辑真值理论背景下,把预设看作

13、是真实和虚假的命题之间的关系,认为预设是句子内部与一定词语和结构有关的基本语义关系。语用预设在语用学背景下进行,把预设看作是有关言者与听者的信念的一种言语行为的一种状态问题,或者是言者或听者共同具有的、使交际顺利进行的背景知识。,a、预设分类(依据依赖语境与否),语义预设,语义学的观点认为预设是句子或命题之间的语义关系。这种观点以句子或命题之间真假值关系来定义预设,而不考虑语境、交际者、背景知识、交际原则等语用因素。语义预设是两个命题之间的关系,而语用预设是话语同一个命题之间的关系。(麦考莱),语用预设,语用学研究中,预设作为一种语用推理,是一种依赖于语境的意义。它是说话人组织信息的策略,并受

14、说话人对听话人所谈事物的熟悉程度的估计的影响。语用预设一般被认为是言语交际双方都已知的信息,或是根据言语上下文的语境至少可以推断出的信息,因此这些信息会被看作是已交际的一部分无需陈述出来。利用语用预设,可以让受众领悟到所要表达的本意,也可使表达更加灵活多变。,关于语用预设,存在不同的理解和定义,归纳起来主要有三种主要的说法。第一种理解认为语用预设指的是说话人对言语的语境所作的设想;第二种理解把语用预设看作是施行一个言语行为所需要满足的恰当条件或是使一句话具有必要的社会合适性所必须满足的条件;第三种理解是把语用预设看作是交际双方所共有的知识。这三种对语用预设的理解具有一个共同之处,即预设是交际双

15、方所共有的背景知识,基于这种认识,说话人才有可能对听话人说某一句话,并认为听话人会理解他的话,也正是基于这种共有知识,听话人才可能正确理解说话人对他所说的话,简而言之,预设是为说话人视作谈话双方的共知信息或是说话人希望听话人将之视为“无可争议”(non-controversial)的信息。,语义预设与语用预设,语义预设和语用预设是两种不同的预设。1)语义预设是狭义预设,是客观的、非语境性的、静态的,是从命题的真值条件出发研究预设;2)语用预设则是广义预设,是主观的、语境性强、动态的,主要研究预设在语言中的各种情况。但是二者并不互相抵触,是密切联系的。前者是后者的基础,后者是对前者的深化与扩展。

16、,b、预设分类(依据预设内容) 存在预设:用于陈述某人某事有一定性质的话语。一般都预设讨论对象的存在。北京市长参加了植树。 事实预设:用于陈述事实的表态性话语,一般都预设讨论对象的事实。我知道北京是中国的首都。 种类预设:凡是谓词意义可以包含某集合属性的话语,一般都预设所讨论对象属于某种范畴。这些水果之中苹果是最好吃的。苹果属于水果 性质预设(程度预设)。话语的语义成立对所涉及到的种种对象在性质特征上有一定要求,这种要求就是话语的性质预设。小王比小李高。高矮程度 信念预设。有些句义的成立必须以某种信念的确认为条件,这就是信念预设。上帝保佑我们。基督教,认知研究,认知语言学家如Fillmore(

17、1985)、Fauconnier (1985,1997) 和Lakoff(1987)等纷纷运用认知语言学的理论框架对预设进行了研究,开辟了新的视角,提出了新的观点。预设的认知解释,认为预设是语言使用者对某个或某些领域里经验的统一和理想化的理解,是由预设触发语(Presupposition triggers)的理想化的认知模型(ICM)激起的概念和知识所构成的一种认知环境,在交际中表现为交际双方互明的共同认知环境(Shared cognitive environment)。,4、语用预设的属性,不同观点4.1. 单向性、主观性、隐蔽性 (陈新仁,1998)当代语用学4.2. 共知性、合适性 (何

18、自然,1997) 语用学概论,4.1.1. 单向性(陈新仁),所谓单向性是指语用预设是发话人在谈话中自己单方面做出的,并没有与受话人进行协商,这是相对于语用预设本身而言的,是由说话人单方面做出的,在被听话人处理之前,它只相对于说话人而存在。甲:你觉得塞尔比怎么样?乙:塞尔比?甲:塞尔比是打台球的你不知道啊?听到甲的提问,乙不知所云。因为他从不关注台球,根本就不知道塞尔比为何人。甲的问话中就预设了“乙知道塞尔比这人”,在乙接话之前是单方面的,只有在乙接到话后,乙才推断出甲的预设,这时才是双方的。,4.1.2. 主观性(陈新仁),语用预设本身不具备必然的真实性或正确性。有时只是发话人的预设,即只要

19、是发话人所相信的事实可以成为预设,但说话者并不需要真正地认为一些观点是真的,为了交谈的目的,他和他的听众可以接受一个虚假的知识或者一个其真值尚有疑问的命题。A、B 是恋人,A 说 B “你是猪头。”我知道他偷了我的橡皮。,4.1.3. 隐蔽性(陈新仁),隐蔽性从与语义载体相联系出发,预设并非发话人通过句子的语音形式传达出的在线信息,而是通过话语和语境暗示出来。预设在话语中的隐蔽性有很大的欺骗性,受话人稍不留神,就可能接受发话人隐藏的预设前提。男:明晚我们在什么地方见面?女:还在这里吧。这一对话中,显然有这么一个预设:“明晚我们要见面。”男方不明问明晚能否再见面,而直接问在何处见面,目的是希望这

20、一预设不言而喻,使对方在不知不觉中接受了邀请。,4.2.1 共知性(何自然),共知性指话语的预设对交际双方来说都是共同的背景知识,它可以不在话语表层明言,而隐含在言外。 卡里没钱了。去北门吃吧。山科大,餐厅买饭需要使用校园卡,北门有餐馆和小吃。,4.2.2 合适性(何自然),合适性指预设所包含的语用意义对双方来说是符合通常的社会规范的,双方也都有能力做到。母亲对女儿说:“打扫一下房间”。有房间,双方知哪一个,房间脏了,女儿有能力打扫。,5.1 预设与会话含义,大部分预设对语句尤其语句中的某些词语依赖性强,有的预设(语义预设)是由言语论断而且也只是由言语论断来确定的,而会话含义则需要借助于对会话

21、原则及其准则的遵守与否辨认,或者需要听话人补充足够的语境信息才能判断。而且前提与话语关系密切,从逻辑上分析是形成话语的先决条件,但会话含义却不是这样。,试比较下面两个例题,(1) a. Kepler died in misery.b. Kepler did not die in misery.c. Kepler exists.(2) A: Do you want some coffee?B: Coffee would keep me awake.(2) I dont want any coffee.,没有预设,(1)就没有真假值,就不宜用于交际。 (2)B句的会话含义(2)并不是(2)B句的先

22、决条件,而是在补充了下面的语境信息(2)后推出的结论。 (2)He doesnt want to stay awake.当代语用学(2006:142),5.2 预设与蕴涵,蕴涵(entailment)【哲学、逻辑学】 涵蕴性(关系)陈述S1蕴涵一个陈述S2S1S2,蕴涵定义:,如果在任何使A真实的情况下,B也真实,那么A语义上蕴涵B。 例如: That person is a bachelor. 这个句子蕴涵That person is a man. (记作) 如果说 That person is not a bachelor. 那么原句的蕴涵很难说是真还是假。,句子A要蕴涵句子B必须满足的条

23、件,1)如果A真实,B也真实, 2)如果A不真实,B可能真实,可能 不真实。,A句与B句构成前提必须满足的条件,1)如果A真实,B也真实。 2)如果A不真实,B仍然真实。 例如: John is married. 前提 John exists.,How to distinguish them?,a entails b on two conditions:If a is true, b is true.If a is false, b is true, or b is false. a presupposes b on two conditions:If a is true, b is true

24、.If a is false, b is still true.,否定测试法(negation test),1. a. John is married. b. John exists. c. John is not married. 2.a. John managed to stop the car. b. John stopped the car.c. John tried to stop the car.d. John did not manage to stop the car. b is the entailment of a.c is the presupposition of a.

25、,前提与蕴涵的区分,Presupposition-is something the speaker assumes to be case prior to making an utterance .-Speaker, not sentence, have presupposition.-Speaker assumes it is known by listeners.Entailment-is something that logically follows from what is asserted in the utterance. -Sentences, not speakers, ha

26、ve entailments.,语义预设和蕴涵的区别:语义预设是一种特殊的蕴涵。语用预设和蕴涵的区别:语用预设和语境有关,蕴涵不涉及语境;预设有言外之意,而且言外之意可以推导。,前提与蕴涵的区分,预设关系表达公式,In many discussion of the concept, presupposition is treated as relationship between two propositions. If we say that the sentence in (1) contains the proposition p and the sentence in (2) cont

27、ains the proposition q, then, using the symbol to mean presuppose, we can represent the relationship as in (3).(1) Marys dog is cute. (=p)(2) Mary has a dog. (=q)(3) p q,When we produce the opposite of the sentence in (1) by negating it (=NOT p), as in (3), we find that the relationship of presuppos

28、ition doesnt change. That is, the same proposition q, repeated as (4), continues to be presupposed by NOT p, as shown in (5).(3) Marys dog isnt cute. ( = NOT p)(4) Mary has a dog. ( = q )(5) NOT p q,预设关系表达公式,6. Presupposition-triggers 前提触发语,前提的语用推理有时候未必以整句话的语义内容作为基础,它可以以某些词语,某些句式为基础。这些能作为前提基础的词项或表层结

29、构形式就称为前提语(presupposition-trigger)。,6. Presupposition-triggers 前提触发语,In the analysis of how speakers assumptions are typically expressed, presupposition has been associated with the use of a large number of words, phrases, and structures, known as presupposition-triggers. In his Pragmatics (pp. 181-4

30、), Levinson on the basis of Karttunen (31 types) lists 13 types of them, which he regards as the set of core phenomena.,对于前提触发语,有不少人归纳分析过。Karttunen收集了三十一种;Levinson 选择了十三种。,6.1. Definite descriptions (定指描写)the , this/ that + NP, the 3rd person pronoun,possessive + n John got married last week. There

31、existed a person called John. The team of explorers got lost in the jungles. There was a team of explorers. This house was once owned by a rich merchant. There once existed a house. Johns wife is a school teacher. John has a wife. John saw /didnt see a man with two heads. There existed a man with tw

32、o heads.,6.2. Factive verbs (叙实动词) regret, realize, know, be aware that, be sorry that, be glad that, be proud that, be pleased that, be odd, be strange, be disappointed that John realized that he had made a mistake. John made a mistake. He regretted having started the project.He started the project

33、. Im sorry that your dog died. Your dog died. He is pleased that his son is making progress in his music lessons. His son is making progress in his music lessons. Martha regrets / doesnt regret drinking Johns home brew. Martha drank Johns home brew.,6.3. Implicative verbs(含义动词)manage, forget, happen

34、 He managed to get the ticket.He tried to get the ticket. I forget to bring the book.I ought to have brought the book. We happened to meet our neighbor in the cinema.We did not expect to meet our neighbor in the cinema. John managed/ didnt manage to open the door.John tried to open the door.,6.4. Ch

35、ange of state verbs(状态变化动词)finish, stop, begin, start, carry on, continue, cease, leave, arrive, enter, come, go, turn, transform, etc. He stopped / didnt stop smoking cigars.He had been smoking cigars. It began to snow at midnight.It did not snow before midnight. The guests arrived at 6. The guests

36、 were not here before 6. He carried on the work. Someone was doing the work. Her face turned pale.Her face had not been pale.,6.5. Iteratives (表示重复的词)The spaceship came back to earth. The spaceship had been on earth. He promised to ring / didnt promise to ring again.He had rung before. Order was res

37、tored.There had been order before. Im visiting China for the third time.I have visited China twice before. This book is not reprinted any more. This book was printed before.,6.6. Verbs of judging (判断动词)Peter accused / didnt accuse Smith of forgery.Peter thinks forgery is bad.Mike criticized Mary for

38、 backing out at the last minute.Mary backed out at the last minute.,6.7. Temporal clauses (时间从句)After his father died he stepped into a large fortune.His father died. Since the new cabinet was formed, there have been a lot of reforms in the country.A new cabinet was formed. While Chomsky was revolut

39、ionizing linguistics, the rest of social science was/ wasnt asleep. Chomsky was revolutionizing linguistics.,6.8. Cleft sentence (分裂句)It is that / who what.It was John who danced the last dance with Mary.Someone danced the last dance with Mary. It was in a certain place that they got in touch withea

40、ch other.They got in touch with each other in a certain place. It was /wasnt Henry that kissed Rosie.Someone kissed Rosie. What I lost is my passport.I lost something.,6.9. Implicit clefts with stressed constituents带重音成分的隐形性分裂句,John did/didnt compete in the OLYMPICS. John did compete somewhere.,6.10

41、. comparison &contrast(比较与对比)Marianne called Adolph a male chauvinist, and then HE insulted HER.For Marianne to call Adolph a male chauvinist would be to insult him. Carol is a better pianist than Mike.Mike is a pianist. This essay is as good as the one you wrote last time.You wrote an good essay la

42、st time. Your house resembles ours.We have a house.,6.11. non-restrictive attributive clauses (非限定性定语从句)The Proto-Harrappans, who flourished 2800-2650 B.C., were/ were not great temple builders.The Proto-Harrappans flourished 2880-2650 B.C. The island of Japan, which are located to the east of China

43、, have frequently been struck by earthquakes of varying forces.The island of Japan are located to the east of China.,6.12. Counterfactual conditionals(违反实际的条件句)If Hannibal had only had twelve more elephants, the Romance languages would /wouldnt this day exist. Hannibal didnt have twelve more languag

44、e. If I had not burnt the cake, we would be having it for tea.I burnt the cake. If Columbus had not discovered America, someoneelse would. Columbus discovered America. If Beethoven were still alive, he would be surprised to hear this rendition of this “Ode to Joy”.Beethoven is not alive.,6.13. Quest

45、ions (疑问句) 是非问句,选择问句,特殊问句Is there a piano in the room?Either there is a piano in the room or there is not a piano in the room. Does he speak English or French?He speaks either English or French. What can you expect?You are expecting something.,7. The problematic properties 一些有疑问的特性(沈家煊译),7.1.Defeasi

46、bility (可撤消性)7.2.The projection problem(映射问题),7.1.Defeasibility (可撤消性),We mentioned that conversational implicatures have some distinct properties, and defeasibility, or cancellability, is one of them. Now this seems to be a property of presupposition as well. In some contexts, a presupposition is d

47、efeasible.“他的考试成绩和别人不一样。” 这句话单独来看,可能预设“他参加了这次考试”,但如果再加上一句话,即“他的考试成绩和别人不一样,他是以特长生参加录取的”则意味着他可能没有参加别人参加的考试。这样,原来的预设便不复有意义。,导致预设消失的语境因素 语境中的语言因素和语境中的非语言因素。语言因素:(话语因素)把一句带有前提语的话置于一定的话语环境中,或者置于一定的上下文中,圆滑的前提便会消失。John didnt manage to pass his exams. John tried to pass his exams.John didnt manage to pass hi

48、s exams. In fact he didnt even try. 前提消失,因为在下文中被否定了。,在断裂句结构中,It isnt Luke who will betray you. Someone will betray you. 假设这句话在下面的话语环境中:You say that someone in this room will betray you. Well maybe so. But it wont be Luke who will betray you, it wont be Paul, it wont be Matthew, and it certainly wont

49、 be John. Therefore no one in this room is actually going to betray you .,导致预设消失的语境因素语境中的语言因素和语境中的非语言因素。非语言因素:指交际双方所共有的知识或设想何某一前提矛盾。时间状语从句:Sue cried before she finished her thesis. Sue finished her thesis.Sue died before she finished her thesis.,7.2.The projection problem (映射问题),如果把一个句子嵌入到另一个句子中去,即把一个句子变成一个更大的句子的构成从句,原句的前提会发生什么样的变化呢?这种预设的组合问题被称为预设的映射问题。映射问题包括以下两个方面的内容:7.2.1. 预设在语境中消失(蕴涵也消失)7.2.2. 预设在语境中保持而蕴涵消失,

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