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Be careful what you say around a pregnant woman. As a fetus grows inside a mother’s belly, it can hear sounds from the outside w
Be careful what you say around a pregnant woman. As a fetus grows inside a mother’s belly, it can hear sounds from the outside w
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2015-03-25
97
问题
Be careful what you say around a pregnant woman. As a fetus grows inside a mother’s belly, it can hear sounds from the outside world—and can understand them well enough to retain memories of them after birth, according to a new research.
【F1】
It may seem incredible that fetuses(胎儿)can listen to speech within the womb(子宫), but the sound-processing parts of their brain become active in the last three months of pregnancy, and sound carries fairly well through the mother’s abdomen.
" If you put your hand over your mouth and speak, that’s very similar to the situation the fetus is in," says cognitive neuroscientist Eino Partanen of the University of Helsinki. "You can hear the rhythm of speech, rhythm of music, and so on. "
A 1988 study suggested that newborns recognize the theme song from their mother’s favorite soap opera. More recent studies have expanded on the idea of fetal learning, indicating that newborns already familiarized themselves with sounds of their parent’s native language;【F2】
one showed that American newborns seem to perceive Swedish vowel sounds as unfamiliar, sucking on a high-tech pacifier to hear more of the new sounds.
Swedish infants showed the same response to English vowels.
But those studies were based on babies’ behaviors, which can be tricky to test. Partanen and his team decided instead to outfit babies with EEG sensors to look for neural traces of memories from the womb. "Once we learn a sound, if it’s repeated to us often enough, we form a memory of it, which is activated when we hear the sound again," he explains.【F3】
This memory speeds up recognition of sounds in the learner’s native language and can be detected as a pattern of brain waves, even in a sleeping baby.
【F4】
The team gave expectant women(孕妇)a recording to play several times a week during their last few months of pregnancy, which included a made-up word, "tatata," repeated many times with music.
Sometimes the middle syllable was varied, with a different pitch or vowel sound. By the time the babies were born, they had heard the made-up word, on average, more than 25,000 times. And when they were tested after birth, these infants’ brains recognized the word and its variations, while infants in a control group did not.
【F5】
Babies who had heard the recordings showed the neural signal for recognizing vowel and pitch changes in the made-up word, and the signal was strongest for the infants whose mothers played the recording most often.
"This leads us to believe that the fetus can learn much more detailed information than we previously thought," Partanen says, "and that the memory traces are detectable after birth. "
【F5】
选项
答案
听过这些录音的婴儿表现出可以识别这个编造的词语中元音及音调变化的神经信号,并且在那些妈妈最常播放录音的婴儿中,这种信号表现得最为强烈。
解析
该句是一个由and连接的并列复合句,前一个分句中,for recognizing vowel and pitchchanges作the neural signal的宾语补足语,在翻译时,可以将其前置,译成:识别这个编造的词语中元音及音调变化的神经信号。后一分句中,句子的主干部分是the signal was strongest…,而for…是句子的修饰部分,所以在进行翻译时,我们可以对句子进行拆分,先把这一部分译出,然后再将主句译出,这样句子不会产生头重脚轻的感觉。
转载请注明原文地址:https://kaotiyun.com/show/km74777K
0
考研英语一
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