UNIT 6 Prereading activity Listen to a talk about why people are often irrational. Based on what you hear, match the questions with the answers by placing a letter next to the number. 1 ( ) According to the speaker; how can people behave in a rational way? 2 ( ) What are the consequences of people's irrational behavior? 3 ( ) What has MIT Professor Ariely discovered? 4 ( ) What is the example in the talk regarding irrational behavior? 5 ( ) What does the speaker say about this irrational behavior? A People tend to behave irrationally in a predictable fashion. B People should act according to logic and reason required in a situation. C It causes problems to themselves as well as to others. D He doesn't think this irrational behavior is always intentional. E If a person knows someone suffers from a disease, he will feel he suffers from the same disease.