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  3. Children have been said to have brain-injured child syndrome, hyperactive(极度

Children have been said to have brain-injured child syndrome, hyperactive(极度

游客2023-07-18  66
问题     Children have been said to have brain-injured child syndrome, hyperactive(极度活跃的)child syndrome and attention-deficit disorder(ADD). As early as the 1940’s, psychiatrists have【C1】______children with  hyperactivity and extremely distracted and impulsive(冲动的). These frequent name changes show how【C2】______researchers, are about the causes【C3】______the problem and the diagnostic criteria for the disorders. In the past several years, the people who【C4】______attention deficit hyperactivity disorder(ADHD)have【C5】______to clarify the disorder’s causes and【C6】______, and have reasons to believe that it may be genetic. Today’s view【C7】______this disorder is very different from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental【C8】______in the brain’s circuitry and self-control. The loss of self-control【C9】______other important brain functions mandatory for maintaining【C10】______. ADHD involves two sets of symptoms: inattention and a【C11】______of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more inconsistent, affected by brief actions. The younger the child, the less【C12】______they are. This behavior is a【C13】______of a problem when it is displayed more in them than in their【C14】______. Boys are at least three times more【C15】______than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to【C16】______disorders in the nervous system. These behaviors generally【C17】______between the ages of 3 and 5.【C18】______, some children don’t start to develop the disorder until【C19】______childhood or early adolescence. Researchers are unable to find the reasons for this【C20】______. [br] 【C19】
选项 A、late
B、early
C、new
D、unhappy
答案 A
解析 形容词辨义题。本句意思是“有些儿童直到儿童时代晚期和青春期早期才出现这种行为”。85 childhood和early adolesscence用or连接，前后两部分意思一致，可推断前面是指“儿童时代晚期”，应选A。
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