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回答题Adults are getting smarter about how smart babies are. Not long ago, researchers learned that4-day-old could understand 26______and subtraction. Now, British research psychologist Graham Schaferhas discovered that infants can learn words for uncommon things long before they can speak. He foundthat 9-month-old infants could be taught, through repeated show-and-tell, to 27______the names of objectsthat were foreign to them, a result that 28______in some ways the received wisdom that, apart from learningto29______ things common to their dally lives, children don't begin to build vocabulary until well into theirsecond year. "It's no 30______that children learn words, but the words they tend to know are words linkedto 31______situations in the home," explains Schafer. "This is the first demonstration that we can choosewhat words the children will learn and that they can respond to them with an unfamiliar voice 32______in anunfamiliar setting. "
Figuring out how humans acquire language may 33______why some children learn to read and writelater than others, Schafer says, and could lead to better treatments for developmental problems. What'smore, the study of language 34______offers direct insight into how humans learn. "Language is a test casefor human cognitive development," says Schafer. But parents eager to teach their infants should takenote : even without being taught new words, a control group 35______the other infants within a few months."This is not about advancing development," he says. "It's just about what children can do at an earlierage than what educators have often thought.
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