基于频次效应的不同输入方式对输出信息相似度的影响

发布时间：2018-04-11 03:02

本文选题：频次效应 + 输入模式　；参考：《扬州大学》2017年硕士论文

【摘要】：频次是二语习得领域备受关注的热门话题,其在语言习得中的重要作用得到了普遍的认可。更有学者提出频次在语言学习中起决定性作用。然而,这种决定性的角色遭到了部分学者的质疑,认为频次作用仅限于对部分语言技能。由此可见,频次在二语习得领域的作用存在争议。因此,本研究以输入假设、输出假设和信息加工理论为主要理论依据,旨在描述在理想频次的不同输入模式下英语专业学生口头输出信息相似度的情况,重点考察在阅读、视频和音频输入的模式下,英语专业学生接受输入的频次与口头输出信息相似度之间的关系,以及不同输入模式下的口头输出信息相似度之间存在的差异。本文主要探讨以下问题:(1)在阅读、视听和音频三种不同的输入模式下,有利于口头输出信息相似度的最理想的频次是多少?(2)在阅读、视听和音频三种不同的输入模式下,最有利于口头输出信息相似度提高的输入模式是什么,以及不同输入模式的频次是否存在差异?(3)不同水平的学生在接受不同模式的理想输入频次下是否存在差异?此外,优生/差生不同比例的班级适合哪种教学模式?基于上述研究问题,本文选取54名扬州大学英语专业大三学生参加实验,并将他们以英语专业四级成绩分为两组:高分组:专业四级成绩大于等于80分,低分组:专业四级成绩小于等于65分。此外,本文还提出了基于WordNet的改进的TF-IDF算法,并对该算法进行代码编写成软件以便分析和处理实验所得的数据。通过实验分析得到了以下结论:第一,在阅读、音频以及视听三种不同输入模式下有利于口头输出信息相似度的最理想频次分别为8次,10次和8次。第二,在阅读、音频和视听三种不同的输入模式中,综合相似度值和最佳频次比较得出:阅读输入方式最有利于提高口头输出信息相似度,其次是视听模式,最后是音频模式。第三,综合输入效果和效率,对于优生/差生=1/9,最佳输入模式是阅读,而最不适宜模式是音频;优生/差生=9/1,最佳输入模式是音频,最不适宜模式是视频;优生/差生=5/5,最佳输入模式是阅读,最不适宜模式是音频。因此,对于英语水平高的学生,听力输入模式是最佳选择,而视频输入模式效果最差。对于英语水平中等或偏下的学生,阅读输入模式是首选,而音频输入模式应适当减少。本研究结果对外语教学有重要启示作用:在外语教学过程中,教师应根据学生现有的语言水平选择最佳的教学模式帮助学生高效的学习外语。虽然阅读是目前教师运用的最普遍、最主要的教学输入模式,但对于各个班级中不同的优生/差生比例,为了保证教学效率和学习效果,教师选择的教学模式也应因其而异。教师只有真正做到因材施教,才能保证自身教学水平,从而提升学生语言能力。
[Abstract]:Frequency is a hot topic in the field of second language acquisition, and its important role in language acquisition has been generally recognized.Some scholars have pointed out that frequency plays a decisive role in language learning.However, this decisive role has been questioned by some scholars that the role of frequency is limited to some language skills.Therefore, the role of frequency in the field of second language acquisition is controversial.Therefore, based on input hypothesis, output hypothesis and information processing theory, this study aims to describe the information similarity of oral output of English majors under different input modes of ideal frequency, with a focus on reading.Under the mode of video and audio input, the relationship between the frequency of receiving input and the similarity of oral output information, as well as the differences between the similarity of oral and output information in different input modes are discussed.This paper mainly discusses the following question: under three different input modes of reading, audiovisual and audio, what is the most ideal frequency for information similarity of oral output?) in three different input modes of reading, audiovisual and audio,What is the most favorable input mode for improving the similarity of oral output information, and is there any difference in the frequency of different input modes?In addition, what kind of teaching model is suitable for classes with different proportion of students with excellent students / poor students?Based on the above research questions, 54 junior English majors from Yangzhou University were selected to participate in the experiment, and they were divided into two groups according to their CET-4 scores: high score group: professional grade 4 score greater than or equal to 80 points.Low score: professional level 4 score less than 65 points.In addition, an improved TF-IDF algorithm based on WordNet is proposed, and the algorithm is coded into software to analyze and process the experimental data.The experimental results are as follows: first, the optimal frequency of the information similarity of oral output in three different input modes of reading, audio and audiovisual is 8 times 10 times and 8 times respectively.Secondly, in the three different input modes of reading, audio and audiovisual, the comparison of the comprehensive similarity value and the best frequency shows that the reading input mode is the most helpful to improve the similarity of oral output information, the second is audio-visual mode, and the last is audio mode.Third, synthesizing the input effect and efficiency, for eugenic / inferior students, the best input mode is reading, while the most inappropriate mode is audio, the best input mode is audio, and the most inappropriate mode is video.Eugenic / inferior 5 / 5, the best input mode is reading, the most inappropriate mode is audio.Therefore, listening input mode is the best choice for students with high English proficiency, while video input mode is the worst.For students with medium or lower English proficiency, reading input mode is preferred, while audio input mode should be reduced.In the process of foreign language teaching, teachers should choose the best teaching mode according to the students' existing language level to help students learn foreign language efficiently.Although reading is the most common and main teaching input mode used by teachers at present, the teaching mode chosen by teachers should be different in order to ensure the teaching efficiency and learning effect for the different proportion of excellent students / poor students in each class.Only when teachers are able to teach according to their aptitude can they guarantee their own teaching level and improve students' language ability.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：H319.3

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