[emile]

Like a lot of teachers, I prefer to come up with my own materials. However, I do like the Cambridge New International English for Business text, and it has some great listening passages, really natural.

As for false beginners... do they really need Business English? I would say general English is more appropriate along with vocabulary relevant to their work. Something with a functional syllabus would likely be effective.

Also, in the past I have found that some clients request Business English simply because they think General English is for kids, whereas after some discussion we reached the conclusion that what they really wanted was just general English, but in an adult format.