Markedness, operator movement and discourse effects in the acquisition of purpose clause constructions in a second language
This article appraises the effects of gap position and discourse information in the acquisition of purpose clause constructions (PCs) by adult Francophones learning English as L2. L1 acquisition studies reveal children having little difficulty interpreting a PC with a subject gap only (SPC) while a PC with an object gap (OPC) has been problematic to interpret. This may be the result of the number of syntactic operations–including operator movement–involved in its derivation plus lexically specified restrictions on the matrix verb. There are grounds for hypothesizing a late emergence of OPCs in English for French speakers. They are not allowed in French and, in addition to lexical restrictions associated with the choice of matrix verb, are marked semantically and typologically; an OPC with a prepositional object gap is additionally syntactically marked. This may thus result in the late acquisition of OPCs relative to SPCs. An additional hypothesis addresses whether L2 learners are adept at using discourse clues to interpret syntactic structure. Results indicate initial difficulty interpreting only PCs with prepositional object gaps, providing support for the hypothesis that syntactically (structurally) marked constructions may create initial learning difficulty in L2 acquisition.