A、Because they have a quicker response. B、Because they are usually more strongly built. C、Because they seem to be men of greater

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问题  
Many studies have been made recently about hand preference in human. They have brought interesting results. It has been found, for instance, that many more men than women are left handed: that all children use both hands about equality until they are three years old, and that(12)hand preference is not clearly marked until age six. Above that age, most people not only favor one particular hand, but they also have a favorite eye, a favorite ear and foot. We know that the left side of the body is controlled by the right side of the brain. It seems that this particular half is the seat of emotion, imagination, and of the sense of space. And, indeed,(13)lefties seem to be more creative than their right-handed fellow humans: (15)they also seem to be more athletic and to do better in some professions which, like sports, require a good sense of space.(14)In a large school of architecture, it was found in 1977 that 29 percent of the professors and 23 percent of the graduating students were left-handed, while lefties represent less than 10 percent of the general population. Lefties manage to drive, to sew, to paint, to use machines as well as any right hander. It is not easy for them, however, to struggle with tools, school desks, automobile and television controls, and many ordinary objects. Fortunately the creation of Left-Handers International has attracted attention to their problems and caused the appearance of special stores offering all sorts of objects for lefties, including wnst-watches, musical instruments, pencil-sharpeners, cameras, scissors, and books that show them how to play left-handed guitar and left-handed golf.
Questions 12 to 15 are based on the passage you have just heard.
12. When do children usually form their hand preference?
13. What does the speaker think about the righthanders?
14. Which of the following are the left-handed people most likely to be good at?
15. Why are there more left-handed athletes?

选项 A、Because they have a quicker response.
B、Because they are usually more strongly built.
C、Because they seem to be men of greater endurance.
D、Because they have a better sense of space.

答案D

解析 文中提到“they also seem to bemore athletic and to do better in some profes—sions which like sports,require a good sense ofspace.”由此可知左撇子运动员较多是因为左撇子的空间感比较好。
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