Abstract
As this is the first unit ofthe teachers' guide ofthe advanced grammar course, a few words would seem to be in order. There are nine units in the advanced grammar course. Each one deals with some of the more difficult English grammar points. Each unit tries to have an interesting introduction that usually puts a lot of the discovery of how the grarnmar works on the students. This is often followed up by grarnmar formulas. Then there are your more textbook type activities and then more cornmunicative practices focusing on oral production. It's our belief that it's good to master each point by attacking it from several different angles.