Laufer and Hulstijn在2001年提出了著名的投入量假说。在假说中,投入量共包括三个方面:需要、搜索和评估。以上三个因素的强弱程度可以用“投入指数”进行量化。研究表明任务投入量中的投入指数越高,词汇习得的可能性就越大;反之,词汇习得的可能性就越小。本研究就是从听力的角度出发,研究词汇习得和任务投入量之间的关系,并对如何在听力中利用任务量来习得词汇提出具体方法,以促进学习者在听力过程中习得词汇。 Laufer and Hulstijn proposed the famous input hypothesis in 2001. In the hypothesis, the total input includes three aspects: need, search and evaluation. The degree of strength of the above three factors can be quantified with “input index ”. The research shows that the higher the input index of the task input, the greater the possibility of acquiring the vocabulary; on the contrary, the less possibility of acquiring the vocabulary. This study is from the perspective of listening, the relationship between vocabulary acquisition and task input, and how to use the task to acquire vocabulary in listening to specific methods to promote learners in the process of learning vocabulary acquisition .