Read all the time. Reading is the best way to prepare for the SAT reading comprehension questions. The SAT usually uses passages from novels and texts that are on high school reading lists.
Read the whole SAT reading comprehension passage. Do not skip ahead and try to answer the questions before reading the passage. Reading the questions first will lessen your capability to focus on the reading passage.
Make notes on scratch paper as you read. Write down the writing style, main topic and key points.
Write down the beginning words of sentences or paragraphs that contain main points. This will provide you with quick reference points within the passage for the questions to come.
Refer back to the reading comprehension passage when choosing an answer. Do not rely too heavily on your memory.
Answer practice reading comprehension questions or take practice SAT tests. Practice questions can be found in SAT study guides and online. SAT practice tests will allow you to practice under test-like conditions.