【正确答案】
A
【答案解析】[听力原文]
Some diseases are infections—like colds and flu. But what about loneliness? Loneliness may not be a disease, at least not in the same way that flu is. But loneliness can be infections.
Actually, many emotions can be infectious.
Being around someone who"s really happy can put you in good mood.
While hanging around someone who"s depressed can be depressing.
The same goes for loneliness. According to one study, the average person feels lonely about forty-eight days per year. Having a lonely friend adds around seventeen extra days of lonely feelings.
Following more than five-thousand people for ten years, the study observed how loneliness can spread through a group. Lonely people, it seems, transmit their sad, lonely feelings to people around them. What happens, according to the study, is that interacting with a lonely person can leave you with a negative feeling toward friendship generally. And so you"re more likely to have negative experiences with other friends, weakening social bonds.
If loneliness is allowed to spread unchecked, it can destroy a social network.
The best way to ward off this sort of lonely infection is to pay more attention to people on the edges of a group.
Reaching out to those who are shy or don"t fit in, and are therefore lonely, can make them feel less alone. And so they"re less likely to spread lonely feelings throughout the group.
How will you feel when being around someone who"s really happy?
[解析] 短文提到，有一个真正快乐的人在身边能让你心情愉快。可见快乐是可以传染的，A中的delighted与happy同义，故正确。
①选项中的情绪形容词delighted, depressed, lonely提示提问与心理感受有关。②由于受到感染，与开心的人一起也会感到高兴，与happy有关的只有A，可排除表消极语义的C和D；同时也可知在快乐的人身边情绪不会不受到影响，也可排除B。
【正确答案】
C
【答案解析】[听力原文]
What is the best way to avoid the lonely infection?
[解析] 短文末尾提到，避免这种寂寞传染最好的方式就是将更多的注意力放存处于寂寞边缘的人群身上。原文的people on the edges of a group实际指的就是lonely people，C与原文表述一致，故为答案。
A中的others和B中的people who need help范围太泛，扩大了听力原文特指的寂寞人群的语义范围，表达不精准，均可排除；D从寂寞的人的角度来表述，说“频繁地与快乐的人互动”，但听力原文是说让大家多关注寂寞的人，视角不一样，故也可排除D。