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  3. Crying and waking up in the middle of night are routine during any newborn’s first few months. But if those crying episodes cont

Crying and waking up in the middle of night are routine during any newborn’s first few months. But if those crying episodes cont

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问题     Crying and waking up in the middle of night are routine during any newborn’s first few months. But if those crying episodes continue on a regular【C1】______past the first year, then they may signal possible behavioral problems【C2】______.
    That’s what researchers in Europe found when they【C3】______nearly two dozen studies on something developmental experts call regulatory problems—which include trouble sleeping, continuous crying and difficulty feeding. The researchers【C4】______in the journal Archives of Disease in Childhood that infants who consistently cry and wake up at night past their third month are nearly twice as likely to【C5】______problems such as attention deficit hyperactivity disorder (ADHD), depression, anxiety, aggressive behavior or【C6】______disorders by the time they begin school. The most【C7】______behavioral difficulties these children had involved【C8】______of self-control, and an inability to calm themselves down or act【C9】______in different social situations.
    How exactly are【C10】______crying jags and picky eating during infancy【C11】______later behavioral problems? Dieter Wolke, one of the study co-authors and a professor of developmental psychology at University of Warwick in England, says the data don’t support any【C12】______link, but there are several possibilities. One, the crying and waking up at night are simply the first signs of behavioral problems that the babies can not【C13】______themselves very well. Every baby wakes up several times a night and may start crying, but most will eventually learn to calm themselves down and【C14】______back to sleep. They learn that enough is e-nough and inevitably【C15】______that Mom and Dad won’t come running every time they cry. If babies are already【C16】______to contracting a behavioral disorder, 【C17】______, they may not be able to learn such self-control, and their crying episodes may continue well past their first year.
    【C18】______, says Wolke, some infants may be genetically susceptible to problems regulating their behavior; specifically, scientists have recently identified a version of a【C19】______concerning dopamine function, which governs mood and emotions as well as motor function, that may make some infants more【C20】______to behavioral problems.
【C1】
选项 A、agenda
B、schedule
C、basis
D、interval
答案C
解析 文章第一句提封新生儿在头几个月里出现夜里啼哭和惊醒都是很平常的事。本句转折，然后提出假设，假如婴儿过了第一年还在哭闹，暗示可能会出现行为障碍。既然是可能出现行为问题，此处应指持续性的哭闹，故选C项basis。on a regular basis为固定搭配，意为“经常性的，有规律性的方式”。
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