good things than bad things? To test for that possibility, Dr Berger looked at how people spread a particular set of news stories: thousands of articles on The New York Times' website.He and a Penn colleague analyzed the "most e­mailed" list for six months.One of his first findings was that articles in the science section were much more likely to make the list than non­science articles.He found that science amazed Times' readers and made them want to share this positive feeling with others.

　　Readers also tended to share articles that were exciting or funny, or that inspired negative feelings like anger or anxiety, but not articles that left them merely sad.They needed to be aroused(激发) one way or the other，and they preferred good news to bad.The more positive an article, the more likely it was to be shared，as Dr Berger explains in his new book, "Contagious：Why Things Catch On."

　　【语篇解读】　本文是一篇议论文，研究表明好消息要比坏消息在网络上传播的更快、更广。

　　1．What do the classic rules mentioned in the text apply to?

　　A．News reports.　　 B．Research papers.

　　C．Private e­mails. D．Daily conversations.

　　A　[细节理解题。根据首段中的"Those are the classic rules for the evening broadcasts and the morning papers."可知，这些规则适用于新闻报道。故选A。]

　　2．What can we infer about people like Debbie Downer?

　　A．They're socially inactive.

　　B．They're good at telling stories.

　　C．They're inconsiderate of others.

　　D．They're careful with their words.

　　C　[推理判断题。根据第二段最后两句可知，像Debbie Downer那样的人是不考虑别人感受的。故选C。]

　　3．Which tended to be the most e­mailed according to Dr Berger' s research?

　　A．Sports news. B．Science articles.

C．Personal accounts. D．Financial reviews.