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If someone is sleepwalking, they are walking around while they are asleep. Sleepwalking happens when a person is not fully aslee
If someone is sleepwalking, they are walking around while they are asleep. Sleepwalking happens when a person is not fully aslee
admin
2018-07-12
40
问题
If someone is sleepwalking, they are walking around while they are asleep. Sleepwalking happens when a person is not fully asleep but not quite awake (清醒的). Usually we move from our deepest levels (层面) of sleep to a lighter level and stay there. Sleepwalkers come right up to wake levels but do not fully awaken. It is at this time that they get up and walk.
The longer a person stays in deep sleep, the more time there is for the sleep to be broken. That opens up the possibility (可能性) of being awakened (but not fully) and of sleepwalking.
Sleepwalking happens more often among young people than grown-ups because young people usually have more deep sleep. Up to 7% of 5 to 12-year-olds sleepwalk, while only about 2% of grown-ups sleepwalk. We get less deep sleep as we are getting older and the possibility of sleep- walking is also reduced.
Sleepwalking may run in families, too. If one of your parents was a sleepwalker, you have about a 50% possibility of also being a sleepwalker.
A person has more possibility of developing sleepwalk ______.
选项
A、when he gets older
B、when he becomes a parent himself
C、if his father or mother sleepwalks
答案
C
解析
细节题。年纪越大梦游的可能性越低,因此排除A选项;从最后一段“If one of your parents was a sleepwalker, you have about a 50%possibility of also being a sleepwalker.”可知,C选项符合题意。
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