Researchers from the University of Plymouth in England wondered whether mood might affect the way kids learn. To find out, they

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问题     Researchers from the University of Plymouth in England wondered whether mood might affect the way kids learn. To find out, they performed two learning experiments with children.
    The first experiment enlisted 30 kids, ages 10 and 11. Each child was given 20 problems in which a triangle or houselike shape was hidden inside a different, larger image. The kids had to find the small shape while sitting in a room with, either happy or sad classical music playing in the background.
    As a measure of mood, the scientists asked the kids to point to one of five faces, ranging from happy to sad. Children listening to the happy music tended to point to the smiling faces, indicating that they felt happy. Kids surrounded by sad tunes pointed instead to the frowns.
    The researchers found that sad kids took at least a second less to find the small shapes. The sad kids also correctly identified an average of three or four more shapes.
    In the second experiment, 61 children, ages 6 and 7, faced the same type of shape-finding problems. Instead of listening to different types of music, though, they watched one of three scenes from a film. One scene was happy. One was neutral. One was sad.
    In this study, kids’ moods tended to reflect the scene they had seen. And just like in the first experiment, kids who felt sad or neutral performed better on the tests compared to happier kids. They solved an average of two or three more problems.
    The researchers hypothesize(假设)that feeling down makes people more aware of details, perhaps because sadness makes us more likely to focus on a problem or difficult situation. Some studies suggest that mildly sad adults do better than happy ones on tests of memory, judgment and argument that involve attention to detail.
Questions:
In the first experiment, kids pointed to one of the five faces to______.

选项

答案indicate their mood/indicate whether theywere happy or sad

解析 本题目考查第一个实验的目的。第三段指出,科学家让孩子指向五张面孔中的一张,这五张面部表情从高兴到悲伤不等。听着愉快音乐的孩子倾向于指向高兴的面孔,表明他们感到高兴。被悲伤曲调环绕的孩子指向皱眉头的面孔。因此实验结果显示,孩子指向不同表情的面孔表明了他们是开心还是悲伤。
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