COMPLEX SENTENCES ACQUISITION OF FIVE YEARS OLD KINDERGARTEN STUDENTS AT RAUDHATUL ATHFAL TARBIYAH AL-ISLAMIYAH

This thesis focuses on the study of Complex Sentences Acquisition of Five Years Old Kindergarten Students at Raudhatul Athfal Tarbiyah Al-Islamiyah Medan. The aim of this study are to describe the types of complex sentence that produced by five years old kindergarten students, to explain the production of complex sentence that produced by five years old kindergarten students, and to reason why five years old kindergarten students produce complex sentence. This study was conducted by using case study as one kind of qualitative research design. The population of this study was six of five years old kindergarten students. The data analyzed by using the theory of Miles and Huberman (1984) which consists of three steps namely data reduction, data display, and conclusion drawing and verifying the result. The result of this study were: (1) Five years old kindergarten students had constructed and produced a types of complex sentences, they are: a) Noun Clause, b) Relative Clause, and c) Adverbial Clause. Complex sentences with adverbial clauses were dominant produced by five years old kindergarten students. The percentage of type of complex sentences that produced by five years old kindergarten students was : complex sentences with noun clause 16.10 %, complex sentences with relative clause 27.11 %, and complex sentences with adverbial clause 56.79 %; (2) Five years old kindergarten students used coordinating conjunctions and subordinating conjunctions to produced complex sentences, they used coordinating conjunction and subordinating conjunction to join the dependent clause to the independent clause and after joining these two clauses the sentences become complex sentence, or they just used an intonation to replaced the coordinating conjunctions and the subordinating conjunctions in joining the dependent clause to the independent clause.; (3) Five years old kindergarten students produced complex sentences to express: a) the time, b) the causes, c) the condition, and d) the purpose.