1) The document discusses different methods of forming new words including affixation, compounding, and conversion. Affixation involves adding prefixes and suffixes, compounding combines two or more words, and conversion changes a word's part of speech. 2) It also discusses lexical chunks, which are multi-word units that behave like single words, including collocations, phrasal verbs, idioms, and sentence frames. 3) The document provides guidance for teaching these types of word forms and chunks, emphasizing introducing them in context, drilling short chunks, and recycling the vocabulary.