B
题干:下列哪一项显示了母亲听到婴儿哭声的正常听力过程?
a.耳朵接收声波。
b.母亲听出了婴儿的哭声。
c.耳朵把声波转换成信号。
d.婴儿的哭声以声波的形式传播。
e.大脑将信号与记忆中的信息连接起来。
A.d-a-c-b-e B. d-a-c-e-b C.a-d-c-b-e D.a-d-c-e-b
根据第一段Everything that humans hear is in the form of waves.Just as the eye sees colours in the form of light waves,the ear and the eye turn these different waves into signals that the brain can make sense of.人类听到的一切都是以波的形式出现的。就像眼睛以光波的形式看到颜色一样,耳朵和眼睛将这些不同的波转化为大脑可以理解的信号。以及第三段第1-4行People's ability to recognize sounds improves with experiences. As the brain receives information about sounds from day to day, it stores the information in its memory. When the brain hears new sounds, it gives meaning to them based on the information already in the memory. 人们识别声音的能力会随着经历而提高。当大脑日复一日地接收有关声音的信息时,它会将这些信息存储在记忆中。当大脑听到新的声音时,它会根据记忆中已经存在的信息赋予它们意义。
可知母亲要听到婴儿的哭声,首先要满足声音以声波的形式传播,然后耳朵接收到这种声波,然后耳朵把这些声波转换成信号,大脑把这些信号同记忆中的信息联系起来,最后母亲辨别出婴儿的哭声。因此可知正确的顺序应该是d-a-c-e-b。故选B。