To paraphrase long passages, it is better to take notes and outline the passage. Write your paraphrase from your notes, without looking at the original passage.
Change the words, not the meaning
Use a good dictionary to find synonyms and to check their usage and context.
Do not change the tone.
Do not add information
Do not leave anything out.
Check your paraphrase with the original. Be sure you have not unintentionally used the same words or phrases.
Try to sound like "you."
Include all the citation information when you are taking notes.
