四六级考试

【单选题】Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorderADD、.As early as the 1940’s, psychiatrists have (62) children with hyperactivity and extremely distracted and impulsive. These frequent name changes show how (63) researchers are about the causes of the problem and the diagnostic (诊断的) (64) for the disorders.
In the past several years, the people who study attention deficit hyperactivity disorderADHD、have (65) to clarify the disorder’s causes and (66) ., and have reasons to believe that it may be (67) . Today’s view on this disorder is very different from the beliefs of just a few years ago.
Researchers are finding thatADH
D、is not a disorder of just attention, but is from a developmental (68) in the brain’s circuitry and self-control. The loss of self-control (69) other important brain functions compulsory for (70) attention.ADH
D、 (71) two sets of symptoms: inattention and a (72) of hyperactive and impulsive behaviors. Most children are more active and (73) than adults are.Children are more inconsistent, (74) by brief actions. The younger the child, the (75) aware of time they are. This behavior is a (76) of a problem when it is displayed more in them than in their (77) .Boys are at least three times more (78) than girls to haveADH
D、Studies have found thatADH
D、in boys outnumbers girls 9 to 1; this is because boys are genetically likely to develop disorders in the nervous system. These behaviors (79) occur between the ages of 3 and 5. (80) , some children don’t start to develop the disorder until late childhood or early adolescence. Researchers are unable to find the reasons for this (81) .

A、NeverthelessB、Moreover
C、Therefore
D、Furthermore
网考网参考答案：A
网考网解析：
[解析] 逻辑衔接题。前文讲一般情况下ADHD症状出现在3到5岁之间，本句提到的时间显然要晚一些，所以选表示转折的[A]Nevertheless“然而，不过”。 [点睛] [B]Moreover“而且，再者，此处”及[D]Furthermore“而且，此处”均表示递进关系；[C]Therefore“因此，所以”表示因果关系，强调结果。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>