摘要近年来越来越多的研究人员关注年龄因素在二语习得中的影响。大多数人认为儿童学习外语的年龄越小越好。这一论段得到了洛菲尔德在1967年提出的关键期假说的支持。对于学习第二语言是否存在最佳年龄，学术界长期以来看法不一。本文作者认为人们在学习第二语言时不存在最佳年龄并通过问卷调查的方法来阐述。实验表明早学习英语的学生没有比晚学习的学生有明显优势，年龄并不是影响外语学习仅有的因素-吹冰;文'论[文]网www.chuibin.com。并且本文作者希望通过此调查可以帮助儿童减轻学习外语的压力，老师也能根据儿童成长的规律采取合适的教学方法。42975

毕业论文关键词：二语习得；年龄；关键期假说；英语教学 

Abstract Recently, more and more people pay much attention to the influence of age factor in second language acquisition. Most of parents and teachers deem that “the younger, the better”for children to learn a foreign language is right, which gets some support from the Critical Period Hypothesis of Lenneberg presented in 1967. Whether there is the best age in second language acquisition, academic circles always have different opinions. The author of this paper thinks that there isn’t the best age in second language acquisition, which is viewed through the questionnaire survey. The test shows that the students who learn English early don’t have more advantages than those who learn English later, and the age factor is not the only element affecting foreign language learning. And the author hopes that it could reduce the pressure of students’ learning foreign language and teachers could adopt appropriate teaching methods according to the laws of children’s growth.

Key words: second language acquisition; age; Critical Period Hypothesis; English    language teaching  

The Studies of Age Factor in Second Language Acquisition

Contents                      

 摘 要 i

Abstract ii

I. Introduction 1

II. Critical Period Hypothesis 2

 2.1 The Definition of CPH 2

 2.2 Critical Period Hypothesis in First Language Acquisition 3

 2.3 Critical Period Hypothesis in Second Language Acquisition 4

III. Research Design 6

 3.1 Research Questions 6

 3.2 Subjects 7

 3.3 Data Collection of Questionnaire 7

 3.4 Experimental Summary 9

IV. Results and Discussion 9

 4.1 Results and Analysis of the Questionnaire 10

 4.2 Discussions 11

 4.3 Suggestions 13

V. Conclusion 16

Bibliography 18

Appendix 20

Acknowledgements 21

I. Introduction

Since the 1950s, many scholars have carried at the extensive and in-depth studies about the inpidual differences in second language acquisition, which make good achievements. At first, what is the second language acquisition? There are many researchers who have researched on this field for many years give the concept of it. For instance, John Archibald (23) described it “The field of second language acquisition research investigates how people attain proficiency in a language that is not their mother language”. In a word, second language acquisition refers to the process of learning other languages after the native language has been learned.