Frontmatter -- Contents -- Acknowledgements -- 1. Preview -- Part 1: Becoming Multilingual -- 2. Issues in Bilingualism and Bilingual Acquisition -- 3. The Children -- 4. Data Collection and Analytical Choices -- 5. Speaking Languages, and Talking about Them -- Part 2: Making Sense of Portuguese -- 6. Shaping Sound -- 7. Probing for Constituency -- 8. Probing for Meaning -- Part 3: Acquiring a Third Language -- 9. A New Language: Intruder or Guest? -- 10. Language Input and Language Management in a Multilingual Environment -- 11. Balancing Culture and Identity -- 12. Overview -- References -- Index