听力音频：
Task1：
stick to one career or do different kinds of work
问题
Some people have one career throughout their lives. Other people do different kinds of work at different points in their lives. Which do you think is better? Explain why.
Task2:
History Seminars Should Be Shorter
阅读材料
History Seminars Should Be Shorter
Currently, all of the seminar classes in the history department are three hours long. I would like to propose that history seminars be shortened to two hours. I make this proposal for two reasons. First, most students just cannot concentrate for three hours straight. I myself have taken these three-hour seminars and found them tiring and sometimes boring. Also, when a seminar lasts that long, people stop concentrating and stop learning, so the third hour of a three-hour seminar is a waste of everyone‘s time. Two-hour seminars would be much more efficient.
问题
The woman expresses her opinion about the proposal that her friend Tim made in his letter to the newspaper. State her opinion about his proposal and explain the reasons she gives for her opinion.
Task3：
Explicit Memories and Implicit Memories
阅读材料
Explicit Memories and Implicit Memories
In everyday life, when people speak of memory, they are almost always speaking about what psychologists would call explicit memories. An explicit memory is a conscious or intentional recollection, usually of facts, names, events, or other things that a person can state or declare. There is another kind of memory that is not conscious. Memories of this kind are called implicit memories. An individual can have an experience that he or she cannot consciously recall yet still display reactions that indicate the experience has been somehow recorded in his or her brain.
问题
Using the example of the car advertisement, explain what is meant by implicit memory.
Task4:
Types of Attention
问题
Using points and examples from the talk, explain the difference between active and passive attention.
