On_the_Role_of_Language__and_Language_Output_in_Second_Language_Acquisition英语毕业论文.doc

毕业论文On the Role of Language Input and Language Output in Second Language Acquisition毕业论文诚信承诺书本人郑重承诺：我所呈交的毕业论文On the Role of Language Input and Language Output in Second Language Acquisition是在指导教师的指导下，独立开展研究取得的成果，文中引用他人的观点和材料，均在文后按顺序列出其参考文献，论文使用的数据真实可靠。矚慫润厲钐瘗睞枥庑赖。北京理工大学珠海学院2010届本科生毕业论文On the Role of Language Input and Language Output in Second Language Acquisition聞創沟燴鐺險爱氇谴净。ABSTRACTNowadays, the phenomenon of fake prosperity in language teaching in China has sparked a hot debate. Many language learners who take part in exams such as IELTS and BEC find that it is difficult to get a high score in speaking and writing compared to listening and reading. In addition, many college students who passed the exam of CET4 and CET6 cannot use English appropriately, even though they have learned this language for over 10 years. The root of this phenomenon is that Chinese students always neglect the importance of achieving a balance between language input and language out in second language acquisition. This paper mainly analyses the reason why language learners should pay attention to the balance between language input and language output, as well as the important role of language input and language output in second language acquisition残骛楼諍锩瀨濟溆塹籟。Key Words: language input language output second language acquisition酽锕极額閉镇桧猪訣锥。试论语言输入与语言输出在二语习得中的作用摘 要 如今，我国外语教学“假繁荣”现象十分严重，学习外语者比比皆是，可是实际数据显示我国学生在参加国外考试如雅思，BEC等考试时，相比起听力与阅读部分，口语以及写作部分的成绩偏低。另外，有许多通过英语大学四六级考试的学生感叹自己学的是 “哑巴英语”,所学的内容不会运用，不能与人交流。究其原因，是因为许多语言学习者在第二语言习得过程中，忽略了语言学习的本质，更突出的问题是割裂了“语言输入”与“语言输出”之间的关系，在外语学习的过程中没有给予两者同等的重视。有鉴于此，通过学习Krashen的语言输入理论以及swain的语言输出理论，笔者意图通过本研究揭示“语言输入”与“语言输出”在外语教学过程中的关系与作用及其两者间的平衡对二语习得产生的重要性，并借此提高广大外语学习者对此的重视程度。彈贸摄尔霁毙攬砖卤庑。摘要：语言输入 语言输出 二语习得 ContentsAbstract.摘要.Literature Review.1謀荞抟箧飆鐸怼类蒋薔。1.1 Input Hypothesis.11.1.1 An Overview of Input.3厦礴恳蹒骈時盡继價骚。1.1.2 The Limitations of Input Hypothesis.3茕桢广鳓鯡选块网羈泪。1.2 Output Hypothesis.41.2.1 Definition of Output.4鹅娅尽損鹌惨歷茏鴛賴。1.2.2 An Overview of Comprehensible Output Hypothesis.4籟丛妈羥为贍偾蛏练淨。1.2.3 Functions of Output.5預頌圣鉉儐歲龈讶骅籴。1.2.3.1 The “Noticing/Triggering” Function.5渗釤呛俨匀谔鱉调硯錦。1.2.3.2 Hypothesis Testing.6铙誅卧泻噦圣骋贶頂廡。1.2.3.3 The Meta-linguistic Function.6擁締凤袜备訊顎轮烂蔷。Clarification of Relevant Concepts. 9贓熱俣阃歲匱阊邺镓騷。2.1 Acquisition VS. Learning.9坛摶乡囂忏蒌鍥铃氈淚。2.2 Second Language VS. Foreign Language.10蜡變黲癟報伥铉锚鈰赘。The Relationship between Input and Output.11買鲷鴯譖昙膚遙闫撷凄。3.1 Input Precedes Output.13綾镝鯛駕櫬鹕踪韦辚糴。3.2 Output Supplements Input.14驅踬髏彦浃绥譎饴憂锦。The Balance between Language Input and Language Output in TEFL Classes for Chinese Students.17猫虿驢绘燈鮒诛髅貺庑。4.1 The Importance of Balance between Language Input and Language Output.18锹籁饗迳琐筆襖鸥娅薔。4.2 Classroom Activities.19構氽頑黉碩饨荠龈话骛。4.2.1 Roughly-tuned Input.20輒峄陽檉簖疖網儂號泶。4.2.2 Finely-tuned Input.21尧侧閆繭絳闕绚勵蜆贅。4.2.3 Communicative Output.21识饒鎂錕缢灩筧嚌俨淒。Conclusion.22References.23Acknowledgements.24IV Literature Review1.1 Input HypothesisInput Hypothesis, advanced by Krashen, a famous American applied linguist, in the late 1970s and the early 1980s, is an all-round theory concerning second language acquisition (SLA). Meanwhile, it is the most influential and controversial theory in second language acquisition research. Such influences still exist till now. Krashens Input Hypothesis is similar to Chomskys theory on first language acquisition in some respects, such as the function of Language Acquisition Device (LAD) in the process of language learning.凍鈹鋨劳臘锴痫婦胫籴。Krashen states that language input plays an identical part with Language Acquisition Device. Together with language input, a learner can construct a series of internal expressions of a good language, in other words, construct an independent language system outside the learners first language (Jia Guanjie, 1996).恥諤銪灭萦欢煬鞏鹜錦。According to Krashen, an important condition for language acquisition to occur is that the acquirer understands (via hearing and reading) input language that contains structure “a bit beyond” his or her current level of competence. In other words, the language which learners are exposed to should be just far enough beyond their current competence that they can understand most of it but is still challenged to make progress.鯊腎鑰诎褳鉀沩懼統庫。Krashens widely known and well-accepted theory of second language acquisition has had a large impact in all areas of second language research and teaching since the 1980s. The theory consists of five main hypotheses.硕癘鄴颃诌攆檸攜驤蔹。(1) The acquisition-learning hypothesisKrashen believed that adults have two different ways to develop competence in a language, namely, language acquisition and language learning.阌擻輳嬪諫迁择楨秘騖。Language acquisition is a subconscious process not unlike the way a child learns language. Language acquires are not consciously aware of the grammatical rules of the language, but rather develop a “feel” for correctness. 氬嚕躑竄贸恳彈瀘颔澩。Language Learning, on the other hand, refers to the “conscious knowledge of a second language, knowing the rules, being aware of them and being able to talk about them.” Thus language learning can be compared to learning about a language.釷鹆資贏車贖孙滅獅赘。The acquisition-learning distinction is the most fundamental of all the hypotheses in Stephen Krashens theory and the most widely known among linguists and language practitioners.怂阐譜鯪迳導嘯畫長凉。(2) The monitor hypothesisThe language that one has subconsciously acquired “initiates our utterances in a second language and is responsible for our fluency,” whereas the language that we have consciously learned acts as an editor in situations where the learner has enough time to edit, is focused on form, and knows the rule, such as on a grammar test in a language classroom or when carefully writing a composition. This conscious editor is called the Monitor.谚辞調担鈧谄动禪泻類。The monitor hypothesis explains the relationship between acquisition and learning and defines the influence of the latter on the former. The monitoring function is the practical result of the learned grammar.嘰觐詿缧铴嗫偽純铪锩。(3) The natural order hypothesisThe natural order hypothesis is based on Krashens research findings which suggested that the acquisition of grammatical structures follows a “natural order” which is predictable.熒绐譏钲鏌觶鷹緇機库。(4) The input hypothesisThe input hypothesis answers the question of how a language acquirer develops competency over time. It states that a language acquirer who at “level i” must receive comprehensible input that is at “level i+1.” We acquire, in other words, only when we understand language that contains structure that is “a little beyond” where we are now.鶼渍螻偉阅劍鲰腎邏蘞。The input hypothesis is the result of Krashens attempt to explain how the learner acquires a second language. In other words, this hypothesis is Krashens explanation of how second language acquisition takes place.纣忧蔣氳頑莶驅藥悯骛。(5) The affective filter hypothesisMotivation, self-confidence, and anxiety all affect language acquisition, in effect raising or lowering the “stickiness” or “penetration” of any comprehensible input that is received颖刍莖蛺饽亿顿裊赔泷。The affective filter hypothesis embodies Krashens view that a number of “affective variables” play a facilitative, but non-causal, role in second language acquisition. Theses variables include motivation, self-confidence and anxiety.濫驂膽閉驟羥闈詔寢賻。1.1.1 An Overview of InputInput is probably one of the most important concepts in SLA. The relation between input and SLA is always a key aspect in the field of SLA. Input, itself, includes all the language signals, i.e. words, phrases and sentences of one particular language, and signals from other language that may be brought in through translation, comparison and so on. In language learning it means the linguistic material to which the learner is exposed, i.e. the learners experience of the target language in all its manifestations (Sharwood Smith, 1993). In the classroom teaching, the effect of linguistic input is closely connected with the strategy for its transmission to the students. It seems to be a direct and informative signal which conveys semantic sense (Andersen, 1981; Larsen-Freeman, 1991; Nunan, 1995). In language acquisition, input plays an indispensable role. However, the role of input in language acquisition is always a controversial question. Behaviorists and Mentalists differ greatly on it.銚銻縵哜鳗鸿锓謎諏涼。1.1.2 The Limitations of Input HypothesisWe should also point out that there are many limitations to the Input Hypothesis theory. First, Krashen emphasizes the importance of input in language acquisition, but the definition of input is narrow, as he advocates natural input while neglecting non-natural input, this is impossible for Chinese learners of English to be in the real situation of communication. Whats more, Krashen emphasizes much more on the input than output; this will impede students communicative ability. Krashen theory also neglects the role of learners themselves, without positive motivation and attitude of learning foreign language; the input alone would not be enough for SLA. 挤貼綬电麥结鈺贖哓类。1.2 Output Hypothesis Among many methods and techniques that aim to facilitate the development of the learners first language grammar, the role of output in SLA is relatively unexplored. A common assumption is that output is only an indication of SLA that has already taken place and does not play any significant role in language acquisition process (Krashen, 1985). But this assumption has come into question since the publication of Swains (1985) seminal article, in which the Output Hypothesis was first proposed.赔荊紳谘侖驟辽輩袜錈。1.2.1 Definition of OutputSwain put forward the theory of “Output Hypothesis” in relation to second language acquisition. In her work, there appeared some terms synonymous with output such as “Producing language” (Swain,1995:125), “producing the target language”, “language performance”, “using the language” and “speaking or writing” (Swain, 1995:127), and production or use” (Swain&Lapkin,1995:371). It seems that output in Swains term is dynamic; it not only refers to the language produced by learners but also the process of producing the target language. We will adopt Swains view of output here.塤礙籟馐决穩賽釙冊庫。The definition of output can be found in Longman Dictionary of Language Teaching & Applied Linguistics as part of that of “input”: (in language learning) language which a learner hears or receives and from which he or she can learn. The language a learner produces is by analogy sometimes called “output” (Richards, J.C., Platt, J. &Platt, H., 2000:227). In this case, output simply means the language a learner produces compared with what the learner receives.裊樣祕廬廂颤谚鍘羋蔺。1.2.2 An Overview of Comprehensible Output HypothesisBased on findings from studies that Swain conducted on immersion students in Canada, she found that although immersion students were provided with a rich source of comprehensible input, their inter-language performance was still off-target, that is, they were clearly identifiable as non-native speakers or writers (Swain, 1984, 1985). She therefore doubted whether comprehensible input on its own is sufficient for second language acquisition.仓嫗盤紲嘱珑詁鍬齊驁。Output helps us make our knowledge more “automatic” through practice and by providing a domain for error correction, which helps us arrive at a better version of our rule. This approach is also known as “direct teaching” or formal instruction.绽萬璉轆娛閬蛏鬮绾瀧。The comprehensible output hypothesis maintains that language acquisition occurs when we say something and our conversational partner do not understand, forcing us to notice a gap in our competence. We then try again until we arrive at the correct version of the rule.骁顾燁鶚巯瀆蕪領鲡赙。Swains hypothesis about the role of output in foreign language learning and her notion, output in dialogue, has beneficially enlarged our scope and deepened our understanding about how the process of output production can facilitate learning process. All her ideas about output can be concisely generalized in one sentence: learners production of the target language in a specific context can facilitate their learning process, leading to their improvements of the target language.瑣钋濺暧惲锟缟馭篩凉。1.2.3 Functions of OutputIn applied linguistics (in its narrow sense), much work has been focused on the role of input and comprehension. Although the importance of output had drawn attention from some western researchers, no systematic study of it had been conducted until Swains (1985, 1995) research of Canadian immersion program. The situation at home is even more unsatisfactory. So far as this writer knows, there is little study that is concerned with the function of output in Chinas foreign language teaching.鎦诗涇艳损楼紲鯗餳類。Since the function of output to enhance the fluency has now been widely known and accepted, Swain does not include this in her hypothesis. Instead, she proposes the other three functions that output serves in promoting accuracy.栉缏歐锄棗鈕种鵑瑶锬。1.2.3.1 The “Noticing/Triggering” FunctionThe “noticing/triggering” function is also referred to as consciousness-raising function. Swain(1995) argues that language production may trigger learners noticing of problems existing in their inter-language, that is, in producing the target language, learners may notice a gap between what they want to say and what they can say, leading them to recognize what they dont know, or know only partially of producing the target language may prompt second language learners to consciously recognize some of their linguistic problems; it may bring to their attention something they need to discover about their L2 (Swain, 1995:125-126). This may trigger cognitive process which might generate linguistic knowledge that is new for learners, or which consolidate their existing knowledge （Swain & Lapkin,1994）.辔烨棟剛殓攬瑤丽阄应。Swain and Lapkin found that there were 190 occasions in which students encountered a linguistic problem in their output. In each case the students forced themselves to modify their output toward greater message comprehensibility. That is, communicative needs forced students to move from semantic to syntactic analysis of the target language.峴扬斕滾澗辐滠兴渙藺。Swain and Lapkin （Swain & Lapkin,1994:384） argued that “on each occasion, the students engaged in mental processing that may have generated linguistic knowledge that is new for the learner, or consolidated existing knowledge.” In other words, it was argued that in the process of modifying their IL utterances in the direction of greater comprehensibility, L2 learners were engaged in some restructuring of system which affected their access to the knowledge base, and that this restructuring process was part of second language learning.詩叁撻訥烬忧毀厉鋨骜。1.2.3.2 Hypothesis TestingThe second role of output is hypothesis testing. Producing output is a way of testing a hypothesis about comprehensibility or linguistic well-formedness of their inter-language against feedback obtained from the interlocutors. This function of output relates directly to the notion of comprehensible output proposed by Swain. By producing output, learners can test their hypotheses, and by being pushed in the process of negotiation of meaning, learners can be more accurate in their production. Sometimes this output invokes feedback which can lead learners to modify or “reprocess” their output. Speaking allows the speaker to control the agenda and to take risks and look for feedback on the points of uncertainty in a developing grammar (Swain, 1995). Several studies have been conducted to test this function. The results from the studies related to the hypothesis-testing function of output (Nobuyoshi & Ellis, 1993; Pica, 1988, 1992; Pica, Holliday, Lewis & Morgenthaler, 1989; Takashima, 1994) show that learners often modify their output in response to the linguistic demands of comprehensible output may have a long-term effect.则鯤愜韋瘓賈晖园栋泷。1.2.3.3 The Meta-linguistic FunctionThe meta-linguistics refers to the total sum of knowledge about language which learners have. It is an embryonic form about linguistic form, structure and system which they obtained by reflection and analysis. It is claimed that as learners reflect upon their own target language use, their output serves a meta-linguistic function, enabling them to control and internalize linguistic knowledge (Swain, 1995: 126). In other words, output may cause the learner to engage in more syntactic progressing than is necessary for the comprehension of input. This syntactic progressing may lead to modified or reprocessed outputa possible step toward language acquisition.胀鏝彈奥秘孫戶孪钇賻。The results of the studies focusing on the meta-linguistic function of output (Dnato,1994; Lapierre,1994; Swain,1995) lend some support to the claim that producing language and reflection on it