题目内容：

    People like to post their selfies(自拍照) on social media. To know more about it, scientists at Syracuse University in New York recently did a research and came up with some surprising findings.

People who post selfies and use editing software to make themselves look better show behavior connected to narcissism(自恋), the researchers said. Makana Chock, a professor from Syracuse University, said because social media is mostly used by people to share unimportant information about their lives, it is a good place for people to “work towards satisfying their own vanity.” Those “likes” under their Facebook selfies make them feel good.

Besides, people who post group selfies show a need for popularity and a need to belong to a group, the research found. Some people feel “peer(同伴) pressure” to post selfies and some follow the popular belief that if there is no picture of an event or experience, it did not really happen. “Anyway, it shouldn’t be seen as negative. People get sense of satisfaction especially when they get likes. And it does no harm,” Chock said.

Other findings from the study include: There are no major differences on how often men and women post selfies and how often they use editing software. But men who post selfies showed more of a need to be seen as popular than women who posted selfies.

Chock said posting selfies on social media is not all that different from what people have done for many years. On trips and special events, our parents and grandparents used cameras instead of phones to take photos. They would bring back photos to show friends and family. You had no choice but to look at them. You probably commented about how nice everyone in the photos looked, especially children and the person showing the photos. They were happy to hear your comments. That was the old way of “clicking like”. On social media, however, people can decide not to look at photos --- even if they click “like”.

1.What is the research mainly about?

A.The ways of making people look better in selfies.

B.The reasons for people posting selfies on social media.

C.The differences between men and women in posting selfies.

D.The connections between posting selfies and mental health.

2.What does the word “vanity” in paragraph 2 probably mean?

A.A deep desire to know about something. B.A special need to be more popular.

C.Too much pride in one’s own appearance. D.Strong determination to improve oneself.

3.What is Chock’s attitude towards selfie posting?

A.Ambiguous. B.Cautious. C.Disapproving. D.Supportive.

4.From the last paragraph, we know that the older generations showed their photos to friends and family ______.

A.to win praise from viewers B.to show off their cameras

C.to improve relationships D.to share good moments