[解析]
(1)细节理解题。根据第一段最后一句话As we grow,we have been developing a social smile to hide unacceptable emotions.(随着我们的成长,我们已经形成了一种社交微笑来隐藏不可接受的情绪。)可知,我们有时要装笑是为了隐藏不被别人接纳的情绪,是未了让自己被社会接受。故选A。
(2)推理判断题。根据第四段Some people are finding it a relief.Those suffering from social anxiety may welcome wearing face masks precisely because they prefer to veil their emotional state from the outside world as much as possible.Others appreciate the freedom from the obligation to put others at ease with a warm ,friendly smile.By wearing a face mask ,you don't have to smile if you don't feel like it.(有些人觉得这是一种解脱。患有社交焦虑症的人可能喜欢戴口罩,因为他们更喜欢尽可能地将自己的情绪状态与外界隔绝。另一些人则欣赏这种自由,不用带着温暖、友好的微笑让别人放松。戴上口罩,如果你不想笑,你就不必笑了。)可知,戴口罩对我们的情感交流的影响是它让自我感到更自由、自在。故选B。
(3)观点态度题。根据倒数第二段中When the whole face is visible,we focus on the eyes to spot sadness and fear,whereas disgust and happiness are more reliably detected by concentrating on the mouth area.(当整张脸都清晰可见时,我们会把注意力集中在眼睛上,以发现悲伤和恐惧,而厌恶和快乐则更容易通过关注嘴巴区域来察觉。)及最后一段中Consider that by only seeing the eyes,it may be easier to get an accurate read of people's genuine emotions.(想想看,只看眼睛,可能更容易准确地解读人们的真实情绪。)可知,作者在最后两段试图表达的观点是通过对眼睛中眼神的变化观察可以揭示一个人真实的情感情绪状态。故选D。
(4)标题归纳题。通读全文可知,本文主要从分析社交微笑下的真实情绪到戴口罩对情感交流的影响来说明眼睛可能更容易准确地解读人们的真实情绪。D选项Masking Genuine Emotions?(掩饰真实的情感?)通过反问的形式,引发读者对文章的思考,契合文意,适合作本文的标题。故选D。