試題詳解

18. Joy and sadness are experienced by people in all cultures around the world, but how can we tell when other people are happy or unhappy? It turns out that the expression of many emotions may be universal. Smiling is apparently a universal sign of friendliness and approval. Baring the teeth in a hostile way, as noted by Charles Darwin in the nineteenth century, may be a universal sign of anger. As the originator of the theory of evolution, Darwin believed that the universal recognition of facial expressions would have survival value. _______________
(A) In fact, various emotional states give rise to certain patterns of electrical activity in the facial muscles and in the brain.
(B) Moreover, people in diverse cultures recognize the emotions manifested by the facial expressions.
(C) For example, facial expressions could signal the approach of enemies (or friends) in the absence of language.
(D) Obviously, different emotions that are conveyed through facial expressions could bridge the communication breakdowns. ¯