A day or so ago I was visited by a student studying English. Although at the Learning Centre we do help students with their English (among other things) we generally don't help with their course content directly. That is why we generally leave the teaching of English to the English teachers!
But I have taught English for many years, so I wasn't about to turn a student away. This post is to help him, maybe his classmates . . . and I'll forward it to his teachers just to let them know what I suggest.