spots.
60．The experiment described in Paragraph 1 is related to the baby's________． A．sense of hearing B．sense of sight C．sense of touch D．sense of smell
61．Babies are sensitive to the change in ________． A．the size of cards B．the colour of pictures C．the shape of patterns D．the number of objects
62．Why did the researchers test the babies with drumbeats? A．To reduce the difficulty of the experiment. B．To see how babies recognize sounds. C．To carry their experiment further. D．To keep the babies' interest.
63．Where does this text probably come from? A．Science fiction. B．Children's literature. C．An advertisement. D．A science report.
【要点综述】 本文是一篇说明文。通过变化纸上的黑点及鼓的敲打次数对婴儿的视觉、听觉进行实验。
60．B 推理判断题。根据文章第一段中的“She stares at it carefully.”可知，本段是对孩子的视觉进行实验。故选B。
61．D 事实细节题。根据文章第二段中的“Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two.”可知D正确。
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62．C 推理判断题。文章第一段描述对孩子的视力进行实验，接下来用鼓来对孩子的听力继续实验。所以选C。
63．D 推理判断题。纵观文章，这是一篇医学实验报告，所以选D。
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