听力音频：
L1：
1. What is the main topic of the lecture?
The relationship between listening to music and the activation of Brodmann areas
The unique process of music appreciation
The importance of music according to social development
The significance of music’s effects on humans
2. According to the professor, what was unexpected outcome of the PET scan?
The PET scan did cause some damages to the tissues of the brain.
More than two areas in the outer layers of the brain was affected
The brain would respond at all to music
Music affected the visual perception in the brain.
3. What things does the limbic system affect?（多选题）
Emotion
Sound
Vision
Memory
4. Why does the professor mention a flute?
To introduce a type of ancient musical instrument
To marvel at the complexity of the instrument
To explain the connection between food and music
To emphasize how long music has been important to people
5. Why does the professor say this:
He believes that this instrument took a very long time to complete.
He does not understand how an ancient person was able to create the instrument.
He is very impressed with the meticulous process of making the instrument.
He wants students to try to think about how this musical instrument was created.
6. According to the professor, why would ancient hunters have sung together?
To coordinate battles
To stimulate certain brain areas
To try to increase their adrenaline
To encourage stronger social bonds
