You'll learn some useful advice in this post about how to maximize your IELTS Reading score. To increase your reading comprehension and maximize your study time on test day, make sure to practice the 3- Steps!
Start your IELTS reading exam preparation off right by taking several practice tests. This will help you identify the types of errors you are making and identify the areas where you need to improve.
The next step is to begin reading widely from a number of sources in order to expand your vocabulary on a variety of academic subjects and enhance your overall reading abilities.
Work on words
It's also about how you read. You won't be doing your reading abilities much good if you just let the material you read "go in one ear and out the other" and gloss over unfamiliar words like they don't matter.