题目

分子式为C3H6Cl2的链状有机物的同分异构体共有（不包括立体异构） A．6种          B．5种          C．4种          D．3种                 答案：C根据短文理解，选择正确答案。How many times do you check your Moments or Facebook page in a day to see whether your latest post has got another “like” or “thumbs up”?Although you might be embarrassed to admit how many times you do this, don't worry. Psychological findings have shown it's completely normal.In fact, the pleasure we derive from (取自) getting a “like” is equal to that of eating chocolate or winning money, and we can't help wanting more.According to the findings of the UCLA Brain Mapping Center, which observed 32 teens aged between 13 and 18, the feedback circuit (反馈电路) in the teens' brains are particularly sensitive, and the “social” and “visual” parts of their brains were activated when they received “likes” on a social network. The research also showed that though the thumbs up might come from complete strangers, the good they derive from it worked equally.So does it mean we should try our best to win as many thumbs up as possible?Not necessarily so if we know the reasons behind our desire for attention.In “Why do people crave (渴望) attention” by M. Farouk Radwan, he explained several cases in which people naturally longed for attention. Radwan said people who were an only child, who were used to being the center of attention in their house, may try to reproduce these conditions. Feeling “overlooked and unappreciated” might also lead you to be eager for attention. Other times, the state of being jealous or wanting to cover your mistakes may also contribute to such longings.In fact, too much desire for attention can create anxiety, and in turn ruin your happiness even when you get it. So what can we do about it? The answer is quite simple.“If people could adopt goals not focused on their own self-esteem (自尊) but on something larger than their self, such as what they can create or contribute to others, they would be less sensitive to some of the negative effects of pursuing self-esteem,” wrote psychology professor Jennifer Crocker in the Journal of Social Issues.（1）You may find this text in a magazine about ____.A.technologyB.educationC.entertainmentD.social life（2）Who will NOT naturally expect attention according to Radwan?A.People who are living with their parents.B.Those who lack social recognition.C.People who are the focus of attention.D.Those who want to blanket what they've done.（3）We know from the last paragraph that ____.A.checking your Moments or Facebook page is a waste of timeB.it is helpful to set goals concerning making contributionsC.focusing on one's self-esteem is quite naturalD.self-teem has a bad effect on one's goals（4）What's the author's attitude towards people's addiction to “thumbs up”?A.worried.B.objective.C.critical.D.supportive.