Smoking, which may be a pleasure for some people, is a serious source of discomfort for their fellows. Medical authorities expre

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问题        Smoking, which may be a pleasure for some people, is a serious source of discomfort for their fellows. Medical authorities express their【C1】____________about the effect of smoking on the health not only【C2】___________those who smoke but also of those who do not. In fact, nonsmokers who must involuntarily inhale the air polluted by the tobacco smoke may【C3】___________more than the smokers themselves.
       As you are doubtless aware, a considerable number of our students have【C4】___________an effort to【C5】___________the university to ban smoking in the classrooms. I believe they are entirely right in their aim.【C6】___________, I would hope that it is possible to achieve this by【C7】___________on the smokers to use good judgment and show concern for others rather than【C8】___________regulation.
       Smoking is prohibited by city laws in theaters and in halls used for showing films as well as in laboratories【C9】___________there may be a fire hazard. Elsewhere, it is up to your good sense.
       I am therefore asking you to maintain "No Smoking" in the auditoriums and classrooms. This will prove that you have to keep nonsmokers’ health and well - being【C10】___________, which is very important to a large number of our students.
【C1】

选项 A、concern
B、trouble
C、interest
D、displeasure

答案A

解析 concem“关心,挂念”,后面常跟介词about或者for,express/show concern about sth.表示“对……表示担心,关心”。trouble“ 困难,困境,麻烦的事”,常用的结构是have trouble with sth.或者have trouble in doing sth.表示“做某事有困难”,interest“兴趣”,常和介词in连用,have interest in sth.表示“对……有兴趣”,displeasure“不愉快,不满意”。因此选A。
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