在应用语言学领域中,二语习得(常简称为SLA)这个学科的历史还是很短的,但这门学科一直都被人们高度的重视。很多人致力于研究各种影响SLA的因素,比如汉语(常简称为L1),年龄,学习者的动机等等。相比较其他影响SLA的因素,L1和年龄对SLA的影响会占有更大的比例,这两个因素也是大部分研究者们研究的重点对象。 In the field of applied linguistics, the history of second-language acquisition (SLA) is still very short, but this discipline has always been highly regarded by people. Many people are committed to studying various factors that affect SLA, such as Chinese (often referred to as L1), age, learner motivation and so on. Compared with other factors affecting SLA, L1 and age will have a greater impact on SLA, and these two factors are also the focus of most researchers’ research.