of course highlight the difficult words or underline them and find their meanings and write it above them, then reread the sentence again.. its better to write the meanings in English, like find a simple synonym that you are familiar with, it will help you understand the word in many ways which will improve your vocabulary skills.

There are several problems which could interrupt a beginner's reading; words , phrases and sentences. If you do not have enough amount of vocabulary , I would suggest you boost your vocabulary power as much as possible because it is often a critical problem for most beginners to read fast . Secondly, you have to read a large amount of article to settle yourself in English sentence pattern . at this stage , you have to modify your grammar to fit the collocation of english sentence and attempt to find the rule of sentence . Finally , you can skim off the most prominent element in a long running sentence to promote your speed of reading. HOPE MY EXPERIENCE CAN HELP YOU