Look for words that refer to other words

Passages usually contains words or phrases that refer to something that was mentioned earlier. This is usually done by means of pronouns and synonyms. You may have to look back in the text to check what they refer to. For instance, Прогнозы погоды сегодня такие точные, что люди на них полагаются, хотя они знают, что метереологи могут ошибиться (Weather reports are so accurate these days that people rely on them even if they know that metereologists can be wrong). In this sentence, них refers to прогнозы погоды, weather reports, and они refers to люди, people.