MÓDULO 5 - UNIDAD 4 - PROGRAMA 2GRAMMAR STRUCTURES Past simple and continuous Linking words Reflexive pronouns Making speculations: Could / might / perhaps Adverbs of manner LEXISVocabulary related to sleeping habits Adverbs of manner PRONUNCIATIONComparisonsStress of four-syllable words. STUDY SKILLSConnecting words and ideas through linking words. Word formation: adjectives + -ly CROSS CULTUREWhat happens when we sleep?.