Here’s a good Reading Paper 1 practice test from one of the excellent British Council sites on a topic that’s quite common in IELTS.
You might want to go back and have a more detailed look at some of the unknown vocabulary after you have a go, but at first don’t worry about words you don’t know – just try it as a ‘real test’ practice. This should take between 17 and 20 minutes – get your timer out!
http://www.britishcouncil.org/professionals-exams-ielts-reading-exam-1-1.htm