This study examines the acquisition of kind-referring expressions such as The dodo is extinct. The objective is to investigate whether second language (L2) learners’ acquisition of nominal number marking and articles expressing kind-reference in English is affected by their first language (L1), their L2 proficiency in English, or the syntactic position of the kind-referring noun phrase (NP). L2 learners of English with Arabic, Chinese, and Turkish L1 backgrounds and a control group of native English speakers (NSs) participated in the study. The results from a Fill in the Gaps Task (FGT) and an Acceptability Judgment Task (AJT) demonstrated that L2 learners were more successful in their production and acceptability judgments when the expression of kind-reference in the target language was similar to that in their L1. The results also showed non-facilitative L1 transfer in the domain of bare singulars, as well as a positive effect of higher L2 proficiency on kind-referring NPs. Finally, the study revealed a subject/object asymmetry in the acquisition of kind-referring NPs in L2 English.
