Ⅰ. Introduction
Ⅱ. Language Proficiency
Ⅲ. Theoretical Framework
Ⅳ. Literacy Development
Ⅴ. The SUP and CUP Models of Bilingual Proficiency
Ⅵ. Evaluation of Bilingual Programs
Ⅶ. Age on Arrival and L₂ Acquisition
Ⅷ. Primary Language Dcvclopment in the Home
Ⅸ. Bilingual Proficiency as Educational Enrichment: The Threshold Hypothesis
Ⅹ. Transferability of Reading Skills