话题熟悉度和二语水平对二语词汇附带习得的影响-外国语言学及应用语言学专业论文.docxVIP

i iii selection from familiar passages, L2 proficiency kept a significant influence on incidental vocabulary gain and retention; In definition selection from unfamiliar passages, L2 proficiency did not have significant effect on vocabulary gain but it had on vocabulary retention. Nevertheless, no significant effect was found to be consistent among different proficiency groups in definition production and selection immediately and 28 days after reading. 5) As with the two vocabulary measures, it was found that participants can gain and retain more target words in definition selection than in definition production. Anyway, this study not only enriched and developed the researches into incidental vocabulary acquisition, but also it contributed to the practice of vocabulary teaching and learning. However, no research has no flaws, this research included. In order to perfect the study of this nature, firstly, time needed to complete the reading tasks should be considered for participants across different levels; secondly, if the comprehension of the reading gist could be accounted, different results may take place; lastly, morphological, syntactic, orthographic, and pragmatic features, apart from semantic features, can also be investigated in the study of the incidental vocabulary acquisition. [Key words] Incidental vocabulary acquisition, Topic familiarity, L2 proficiency, L2 vocabulary gain, L2 vocabulary retention. 独创性声明本人声明所 独创性声明 本人声明所呈交的论文是我个人在导师指导下进行的研究工作及 取得的研究成果。尽我所知，除了文中特别加以标注和致谢的地方外， 论文中不包括其他人已经发表或撰写过的研究成果，也不包含为获得西 北师范大学或其他教育机构的学位或证书而使用过的材料。与我一同工 作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表 示了谢意。 签名： 日期： 关于论文使用授权的说明 本人完全了解西北师范大学有关保留、使用学位论文的规定，即： 学校有权保留送交论文的复印件，允许论文被查阅和借阅；学校可以公 布论文的全部或部分内容，可以采用影印、缩印或其他复制手段保存论 文。 （必威体育官网网址的论文在解密后应遵守此规定） 签名： 导师签名： 日期： i Ch Chapter 1 Introduction PAGE PAGE 1 Chapter 1 Introduction Background and Significance of the Current Study Vocabulary is considered to be an important aspect of language learning and teaching by many learners and educators so