本文首先从形态上分析了un-V-able 格式派生词的歧义性，之后调查了中国英语学习者在语境中对该格式歧义词的解读情况。结果显示，语言水平和语境类别对其解读有显著影响，但构词成分的频率不起作用。解读过程遵循顺序通达模型，表现出强烈的右分支解读偏向，即使是高水平学习者也很难通达左分支解读。因为中国英语学习者的形态表征不完整，形态分析与计算不够灵活。

The morphological analysis explores the structural ambiguity of the words derived in the un-V-able pattern. Then the investigation of the interpretation of such ambiguous words in context shows that the interpretation, following the ordered-access model, is affected by the general language proficiency and contexts, but not by the frequency of the morphological components, and that Chinese EFL learners hold a strong right-branching bias, and hardly get access to the left-branching reading due to their incomplete morphological representation, and in turn, their inflexible morphological parsing and computing.