听力音频：
Task1：
Some college students choose to prepare for careers where there are more job opportunities. Others choose to study subjects that interest them regardless of job opportunities. Which do you think is better and why?
Task2：
The man disagrees with the new policy Explain why.
New Course Credit Policy
Western University allows undergraduate students with a high grade average to take courses in our graduate school programs. Until now, these students received course credit toward their undergraduate degrees. Beginning next year, however, undergraduates taking graduate-level courses will not only receive credit toward their undergraduate degrees: if they go on to enroll as graduate students at Western, they can also apply these credits toward a graduate degree. This new policy will encourage our best undergraduates to take advantage of our graduate course offerings while they are undergraduates and also to make Western University their first choice for graduate school later on.
Sincerely, Robert Steele
Task3：
Use the example described by the professor to explain what role distancing is.
Role Distancing
Throughout our lives, we take on many social roles, such as son or daughter, friend, and parent. Roles help us know how to behave and we are generally comfortable in them. Sometimes, however： people want to separate themselves from a role they are enacting: they want to show that this role does not represent who they really are. When people use their behavior to convey such detachment from a role, they are engaged in role distancing People often use gestures, facial expressions, and tone of voice to distance themselves from roles they are uncomfortable performing
Task4：
Using the points from the talk, describe the two theories that explain the extinction of the dinosaur.
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