 Welcome to a unit that discusses the segmental phonological inventory of English on the basis of its two major varieties, British and American English. Each phoneme of English will be presented with its individual alophonic structure. In the virtual session, where, as usual, the question sheet can be used as a default guide through the unit, we will first provide an overview of the varieties of English in a global context and will then deal with the phonemes and their alophones in the British variety received pronunciation and then in North American English. The mastery worksheet is a listening task where you have to identify RP consonants in context. It involves three levels where the expert level may be pretty hard, but if you practice the consonants in the virtual session, you shouldn't encounter any problems. The practical uses text passages and words to point out the differences between RP and North American English. See whether you can solve the problems on the practical sheet. You should be able to do so after a careful study of the virtual session.