题目

阅读理解 Persuasion is the art of convincing someone to agree with you. According to the ancient Greeks, there are three basic tools of persuasion : ethos, pathos, and logos. Ethos is a speaker's way of convincing the audience that she is trustworthy, honest and reliable. One common way a speaker can develop ethos is by explaining how much experience or education she has in the field. After all, you're more likely to listen to advise about how to take care of your teeth from a dentist than a fireman. A speaker can also create ethos by convincing the audience that she is a good person. If a看图计算下列图形的周长．（1）（2）