L2
讲座
1. What is the purpose of the lecture?
To question a popular assumption about human sleep patterns
To show how animals’ sleep patterns differ from those of humans
To explain why some individuals need less sleep than others
To explain why humans need long periods of uninterrupted sleep
2. Why does the student mention his own sleeping habits?
To point out that humans who live together often have similar sleeping patterns
To describe his participation in an experiment where subjects restricted their sleep
To suggest that the amount of sleep a person needs varies from night to night
To challenge the professor’s statement about the need for a certain amount of sleep
3. Why does the professor discuss cats?
To demonstrate that humans need less sleep than other mammals
To provide evidence that not all mammals need uninterrupted sleep
To show how a mammal’s sleeping habits are influenced by its surroundings
To give an example of an animal with poorly understood sleep patterns
4. In cultures with first-sleep,second-sleep patterns of sleep,when does first sleep typically begin?
Shortly before sunrise
In the early afternoon
Shortly after sunset
An hour or two before midnight
5. According to the professor,what is the significance of the National Institute of Mental Health sleep experiments?（多选题）
They demonstrate how artificial light affects human sleep patterns
They provide evidence that humans need more sleep than previously thought.
They suggest that humans might not need uninterrupted sleep.
They point out the consequences of modern human sleep patterns.
6. Why does the professor say this:
To invite the student to disagree with her
To encourage the student to think more about the subject
To remind the student that the material was already covered in class
To suggest that there is no single right answer to the question
