Yesterday I explained why nobody can create a list of 'band 9 phrases for any essay'. So, is there any way to prepare band 7-9 vocabulary for the test?
The answer is yes, but I'm afraid you will need to make many lists, not just one! I advise my students to prepare ideas and opinions for as many common IELTS topics as possible. Click here to see the basic list that I use.
My aim in the writing lessons on this blog (and in my ebook) is to help you to compile a list or build a repertoire of good 'topic vocabulary'. I could easily give you a list of linking phrases, but unfortunately that wouldn't really help you.