Mr Waugh has kindly put together entire exams (question books, resource books, marking schedules and model answers) for you to look through as you begin to prepare. These can be found on his website by following the link below.
Completing papers in the time that you have during the exam (90 minutes) is one of the best ways you can prepare. Do them by hand and drop them in to me if you would like feedback.
http://newspeak.edutronic.net/practise-paper-3-3-unfamiliar-texts/