Never before had I imagined I should have the opportunity to live with so many girls．Would  they 　36　such a single “Hi” from me? I was about to greet my new roommates，　37　they did  not seem to have the same 　38　attention that I had．They just dealt with their own 　39　， sorting out their clothes，and making arrangements for their university life．Thus tranquility（宁静）
became the 　40　atmosphere in the dormitory．
To my surprise，　41　such a situation，I did not feel a sense of 　42　．With time going on，we got to know each other deeper．I was　43　to find that in deep soul we all had great dreams and belonged to the same　44　．
However，not long before the 　45 　was disturbed by my own upset of mind for study pressure．What I was　46　about seemed to have 　47　to do with them and what they were doing and talking about seemed so far away from me．However，one incident changed my 　48　and made me treasure this kind of 　49　better and more confident in our friendship．
One day，when I was leaving the teachers’ office，it was in complete silence and frightening 　50　．At my dormitory gate，I was startled （使惊奇）to find there still 　51 　a little light glimmering in the darkness，so faint but yet so clear．Just under the 　52　of the light，I went to the room without any difficulty．They were in sound sleep，leaving the 　53　light on in the calm world．Tears rolled down my cheeks．
I know 　54　that we all like tranquility，both in environment and in our mind．It is the care that 　55　all the misunderstandings and unpleasantness．

阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。注意：每个空格只填一个单词。

　 Attention deficit（不足）hyperactivity（活动过度）disorder is known by the letters A．D．H D．Children with A．D．H．D．might have trouble paying attention．They might not seem to listen and might forget things．They might not be able to stay seated or play quietly．They might talk too much and act and speak without thinking about the results of their behavior．These are among the signs named on the web site of America’s Centers for Disease Control and Prevention．

Doctors usually identify the disorder in children．But experts say the behaviors often last into adulthood．Researchers have been looking for the cause or causes of attention deficit hyperactivity disorder．Now, a brain-imaging study offers more evidence that could lead to new ways to treat it．Researchers say they observed shortages in the brain's reward system in patients with A．D．H．D．The study found that levels of some proteins were lower than normal．Nora Volkow, director of the National Institute on Drug Abuse, says the lack of attention and self –control that mark A.B.H.D. could be caused by problem in the flow of dopamine（多巴胺）. She says people might have difficulty completing an activity if they cannot expect some kind of reward in return. Researchers studied the pathways on which dopamine travels and A.D.H.D. Doctor Volkow says the researchers then compared the pathways to those of 44 adults without the disorder. “There was a lower concentration of dopamine markers in the brain of individuals with A.D.H.D., specifically in the areas of the brain that are involved with reward and motivation. And the dopamine levels were directly linked to the severity, of the patient’s inattention she says.”

The study used brain images taken at Brookhaven National Laboratory in new York State. Gene-Jack Wang is chairman of the Brookdhaven medical department. He says the finding might also help explain why people with A.D.H.D.

are more likely to abuse drugs or overeat. He says they might be attempting to increase their dopamine levels to make up for the deficits in their reward system.

I’m sure that your letter will get 　　　　 attention. They know you’re waiting for the

reply.

A. continued　 　　　 B. immediate　 　　　C. careful　 　　　　 D. general