TASK4：

　　阅读标题： Fear Appeal

　　定义：When companies make advertisement to attract consumers, one of the strategies they adopt is called fear appeal. That is, they present some negative events or outcome people may encounter, and then provide solutions with their products or service.

　　听力例子：The professor uses a construction company’s advertisement about roof maintaining to explain fear appeal. In the advertisement, a family was at first having vacation on a beach, laughing and enjoying their vacation. But at the same time, back in their house, water leaks like rainstorm. When they get back home, they say damage everywhere. Then the voice comes: you can avoid this in advance; hire our company to check and repair your roof and you will never be worried about such thing.