采用有声思、访谈和问卷调查的方法探讨写作测试中选词的不确定性,发现受试在写作中存在不确定性,并运用了代表性、可得性、锚定与调整策略。前两个相对有效,锚定与调整策略却导致了偏颇。这对写作教学有一定的启示,教师应加强词汇教学,提高学生英语表达的准确性,以提高学生的写作水平。 Using the methods of voice, interview and questionnaire to explore the uncertainty of word choice in writing test, we find that there is uncertainty in the writing test, and the representativeness, availability, anchoring and adjustment strategies are applied. The first two are relatively effective, anchoring and adjustment strategy has led to bias. This has a certain enlightenment on writing teaching, teachers should strengthen vocabulary teaching, improve students ’accuracy in English expression, in order to improve students’ writing skills.