摘要:由于国际化的需要，当代外语学习者人数不断增加，然而学习者的学习效率却大有不 同，这一点在非英语专业的外语学习者身上尤为突出,国内外很多学者都给予了很大的重 视。20 世纪 70 年代以来，人们对二语习得从各个不同的方面进行了研究，研究方法也多 有不同，至 20 世纪末该理论日趋成熟。本次课题在之前学者研究的基础上，选择一定数量 的学生作为样本，通过收集学生的英语四六级成绩数据并进行分组分析，同时配有口语测 试的调查，从而对学生的二语习得情况获取一个初步的了解，以期为找出更加行之有效的 学习方法提供借鉴。事实证明，文理科专业英语教学方式的不同极大地影响了两者语言的 输入与输出，两者对语言能力都有较大提升，但是在口语和书面语两个方面却有所不同， 对口语的影响远大于书面语。

关键词 学习效率 输入方式 输出方式 口语 书面语

Title  Effects On the Impact of Language Input and Output Modes upon the Second Language Acquisition Efficiency of Non-linguistics Majors in universities

Abstract：Due to the need of internationalization, the number of foreign language learners is increasing. However, learners' learning efficiency varies. This is especially prominent for language learners who are not English majors. The study got the attention from many scholars at home  and abroad. Since 1970s, researchers have done the researches on the second language acquisition from different aspects, and their research methods are different. At the end of the twentieth century, the theory became mature. On the basis of the previous scholars’ research, this subject chose a certain number of students as sample, through collect data of students’ scores in CET-4 and CET-6 and group analysis equipped with oral English test, so that to get a initial understanding on the situation of second language acquisition of students and to provide reference for finding out a more effective learning method. Facts have proved that the differences in teaching methods of art majors and science majors affect the language input and output of students. Both of two ways improve the language ability but there is a distinction between oral English and written English, the impact of the former is much greater than the latter.

Keywords    Learning efficiency    Input    Output    Oral English    Written English

Table of Contents

1 Introduction 3

1.1 Research Background 3

1.2 Significance of the Study 3

1.3 Structure of the Thesis 4

2 Literature Review 5

3 Research Methodology 10

3.1 Research Questions 10

3.2 Participants 10

3.3 Instruments 10

3.4 Data Collection 11

3.5 Data Analysis 13

4 Discussion 16

4.1 Answers to Question 1 16

4.2 Answers to Question 2 17

Conclusion 19

Acknowledgements 20

References 21

1 Introduction

1.1 Research Background

From the 1960s, in order to study people's ability to obtain language skills, especially foreign language, people gradually developed a new discipline called second language acquisition（SLA）. In the 1970s, new theories on SLA were formed, including universal grammar, monitoring theory,

and environmental theory.

According to the theory of universal grammar, human beings possess  universal language which enables people to learn a second language. In essence, the language is not obtained by "learning", as long as the language input has enough positive evidence, any normal person can learn the language. Based on the monitoring theory, it can be attributed to five hypothesis which include Language acquisition and learning hypothesis, natural order hypothesis, monitoring  hypothesis,  language input hypothesis and emotional filtering hypothesis.

According to the environmental theory, language is a set of behavioral habits. Second language acquisition is a process to overcome the native language habits interference and cultivate a new language habits . It also suggested that learners will be influenced by the social and psychological distance of native speakers in the learning process.