Machine generated contents note: Companion Website Preface Part 1: Overview 1.1 The effects of pre-school language impairment 1.2 The ambient language 1.3 Typical language development 1.4 Atypical language development Part 2: The first year of life 2.1 Introduction 2.2 Social development and language learning 2.3 Cognitive development and language development 2.4 Speech production in infancy 2.5 Speech perception in infancy 2.6 Further Problems Part 3: Sounds 3.1 The learning task 3.2 The role of perception 3.3 The production of vowels 3.4 The production of consonants 3.5 Summary 3.6 Further Problems Part 4: Words 4.1 Early vocabulary development 4.2 Learning to label: first steps 4.3 Building a lexicon 4.4 Lexical growth and individual differences 4.5 Beyond nouns 4.6 A bridge to syntax 4.7 Further Problems Part 5: Combining words 5.1 Introduction 5.2 Transcribing and analyzing language samples 5.3 Verb forms: auxiliaries and inflections 5.4 Interrogatives: asking questions 5.5 Complex sentences 5.6 Further Problems Part 6: Beyond the sentence 6.1 Introduction 6.2 Early pragmatic competence 6.3 Discourse skils 1: Conversation 6.4 Discourse skills 2: Telling stories 6.5 Presupposition 6.6 Further Problems Appendix 1: IPA Consonant and Vowel Charts Appendix 2: Reliability and validity Appendix 3: Sensitivity and specificity Appendix 4: Techniques for exploring speech percepton in infants Appendix 5: Grammatical analysis using the LARSP profile References Index.