An emergent debate surrounds the nature of language processing in bilingual children as an extension of broader questions about their morphosyntactic development in comparison to monolinguals, with the picture so far being nuanced. This paper adds to this debate by investigating the processing of morphosyntactically complex which–questions (e.g., Which bear is chasing the camel?) using the visual world paradigm and is the first study to examine the online processing of such questions in bilingual children. For both groups, object which-questions were more difficult than subject which-questions, due to an initial misinterpretation that needed to be reanalysed. Both groups were aided by number mismatch between the two nouns in the sentence, especially in object which-questions. Our findings are in line with previous studies that have shown a slower processing speed in bilingual children relative to monolinguals but qualitatively similar patterns.

围绕双语儿童的语言处理本质展开了一场新的争论，这是关于双语儿童与单语儿童相比形态句法发展的更广泛问题的延伸，到目前为止，情况还很微妙。本文通过使用视觉世界范式研究形态句法复杂的哪个问题（例如，哪只熊在追骆驼？）的处理来补充这一争论，并且是第一个研究双语儿童在线处理此类问题的研究。对于两组来说，对象问题比主题问题更困难，因为最初的误解需要重新分析。句子中两个名词之间的数字不匹配对两组学生都有帮助，尤其是在宾语“哪个”问题中。我们的研究结果与之前的研究一致，这些研究表明，双语儿童的处理速度相对于单语儿童来说要慢，但性质相似。