听力音频：
https://mp.weixin.qq.com/s/HL0h2JANTG9MDQThE9zc3w
Task1
#1, Describe, a, type, of, book, such, as, mystery, biography, or, science, fiction, that, you, do, not, enjoy, reading. Explain, why, you, do, not, like, that, type, of, book.
Task2
A, student, has, written, a, letter, to, the, newspaper, of, city, university:
Stop, Serving, Junk, Food, in, Dining, Hall
The, university’s, dining, hall, currently, offers, many, healthy, foods, but, also, a, lot, of, unhealthy, snacks, and, junk, food, like, cookies, and, potato, chips. I, think, the, university, should, stop, serving, the, unhealthy, items, and, offer, only, healthier, options, like, fruits, and, vegetables. Students, would, benefit, from, the, change, in, two, ways. First, they’d, be, healthier, because, they’d, be, eating, lots, of, nutritious, food. Also, students, would, save, money. Many, students, buy, unhealthy, snacks, and, desserts, like, ice, cream, even, if, they’re, full, after, a, meal—but, with, the, new, plan, they, will, no, longer, waste, money, on, food, that, they, really, don’t, need.
Sincerely,
Mary, Jacobs
Task3
Rational ignorance
When people are planning to make an important purchase, they often spend a great deal of time gathering information about their various options to make the best possible choice. However, when making less important purchases, people may decide that it is not worth gathering information beforehand. This phenomenon is called rational ignorance. If the differences between products seem small or unimportant, people may decide not to learn about them. In other words, people deliberately choose to remain ignorant of the differences because learning about them is not worth the time or energy. The products are so similar that no significant benefit can come from choosing one over another.
Explain how the example from the professor’s lecture illustrates the concept of rational ignorance.
Task4
The, professor, discussed, an, experiment, with, mother, rats. Using, the, experiment, explain, what, scientists, have, learned, about, the, mental, abilities, of, some, mother, animals.
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