"Upstream: Pre-Intermediate B1: Teacher's Book" is a modular course for learners of the English language at CEF B1.1 level. The series combines active English learning with a variety of lively topics presented in themed units. Key Features: theme-based units from a wide variety of authentic sources in five modules; a variety of cross-cultural topics; systematic development of all four language skills through realistic challenging tasks which encourage the learner's personal engagement; lexical exercises practising and activating all essential vocabulary including collocations, phrasal verbs, fixed phrases, prepositions and word formation; a varied range of reading texts from authentic contemporary sources, with exercises which encourage learners to read extensively as well as intensively; stimulating reading and listening tasks; a wide range of speaking activities and intonation practice; ...