Here you go: 

• Read Extensively: First & most importantly try to understand the general idea behind every passage/question. Speed reading skills help you find the answers rapidly at the time of exam and facilitates completion of examination within stipulated time.

• Quit Re-reading: Re-Reading sentences is one of the biggest time-consuming exercises in IELTS reading. Don’t waste more time in continually looking at things you have already gone through. In Re-reading you will spend too much time but will not gain much comprehension/clarity.

• Skimming and Scanning: Skim and Scan are must know tactics for IELTS reading. You should be able to skim and scan passages to perform well in the IELTS Exam. Skimming is simply reading a passage to get a basic idea of the content. At the same time, you should jot down key words like important dates/ names, whenever you see. Reading the headlines carefully helps in deriving a decent idea about the passage. Scanning is your ability to locate information instantly. Ignore all the irrelevant and confusing words in scanning.

• Pay particular attention to the terms: Most of us read by pronouncing words in our head, this lowers down our speed-reading skills. Avoid attention to the voice in your head. Your task is to find right answers. Majority of questions test your ability to locate particular information. Therefore, pay particular attention to the words given.

• Developing vocabulary: Learning vocabulary helps in deciding when you can and can’t use a word. It is an art about what collocations can be used with words. Learning vocabulary can be inculcated from practice reading passages.

Allocate time for practice tests under exam conditions to test your score and improvements before the examination. These couple of tips will help you in boosting up your reading skills and will help you to answer the comprehensive questions much faster.