情感对人的认知活动起着启动和激活的作用 ,从而成为学习活动的直接诱因 ,并转化为学习动机 ,对学生学习有激励作用 ,还可以提高学生智力活动的效率 ,在教学中有转移功能。克拉申认为 :虽然情感对习得机制并无影响 ,但情感因素起着阻碍或促进输入传到大脑语言习得器官的作用。 Emotion plays the role of starting and activating cognitive activities of human beings, and thus becomes the direct inducement of learning activities and translates into motivation for learning, which can stimulate students ’learning. It can also improve the efficiency of students’ mental activities and shift in teaching Features. Krashen argues that although affection has no effect on acquisition mechanisms, affective factors play a role in hindering or facilitating the importation of input to the brain’s language acquisition organ.