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  3. How Kids Learn It is a big day for the "expert baby.’ A minivan bearing an official University of Washington seal picks up th

How Kids Learn It is a big day for the "expert baby.’ A minivan bearing an official University of Washington seal picks up th

admin2010-06-18  35
问题                           How Kids Learn
   It is a big day for the "expert baby.’ A minivan bearing an official University of Washington seal picks up the 14-month-old boy and his mother and takes them to a Seattle day-care center.  Once inside, he is placed at the head of a table surrounded by his "students," a bevy of babies his age. Researchers from the university’s psychology department observe and take notes.
   The miniprofessor begins his lesson: Whaaack! He smacks the top of a special camping cup with his palm, and it collapses. His pupils look at one another, wide-eyed. Then he deftly pulls apart a puzzle and puts it back together. As a finale, he hits a hidden button on a box, which produces a buzzing sound.  A delighted squeal rises from the audience. Wunderkind is then whisked away.
   Two days later, a researcher visits the houses of each of the young pupils, unpacking a black bag to reveal the little-professor’s toys. The infants grin in recognition and repeat the tricks they observed. Like the expert baby before them, they have mastered these routines. But when the researchers visit babies who haven’t been primed, the results are decidedly different. Those babies bang the cup on the table, but never collapse it. They chew on the puzzle, but don’t assemble it. They rub the box, but fail to find the secret button.
   The expert baby and his cohorts are part of a revolution in how scientists view very young children. For most of this century, infants were regarded as gurgling blobs, soaking up sights and sounds but unable to make much use of them. But it turns out that babies are reasoning beings even in their very first months.  "Before they have the ability to use language, infants can think, draw conclusions, make 15redictions, look for explanations, and even do miniexperiments,” says Andrew Meltzoff, head of developmental psychology at the University of Washington and coauthor of The Scientist in the Crib, published this week.
In the passage, "cohorts" (in the first line of the 4th paragraph) refer to ______.
选项 A、the toys the miniprofessor used
B、the babies taking part in the research
C、the researchers conducting the study
D、the teachers at the day-care center
答案B
解析
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