Today, as in every other day of the year, more than 3,000 US adolescents (少年) will smoke their first cigarette on their way to being regular smokers as adults.During their lifetime, it can be 1 that of these 3,000 about 23 will be murdered, 30 will die in traffic 2 ， and nearly 750 will be killed by a smokingrelated disease.The number of deaths 3 by cigarette smoking outweigh all other factors, whether 4 or involuntary, as a cause of death.Since the late 1970s, when daily smoking among high school seniors 5 30%, smoking rates among 6 have declined.While the decline is impressive, several important issues must be 7 .First, in the past several years, smoking rates among youth have 8 very little.Second, in the late 1970s, smoking among 9 high school seniors exceeded(超过) that among female by nearly 10%.The statistic is reversing.Third, several recent studies have 10 that high school dropouts(辍学者)have excessively 11 smoking rate, as much as 75%.Finally, though significant declines in adolescent smoking have 12 in the past decade, no definite 13 for the decline to exist.Within this context, the National Cancer Institute (NCI) began its current 14 to take the most effective measures to 15 smoking level among youth.
【小题1】A．inferredB．believedC．expectedD．hoped【小题2】A．peaksB．accidentsC．problemsD．jams【小题3】A．damaged B．caused C．led D．made【小题4】A．happy B．healthyC．voluntary D．crazy【小题5】A．had B．totaled C．gotD．reached【小题6】A．youth B．studentsC．girls D．boys【小题7】A．raisedB．liftedC．askedD．questioned【小题8】A．grownB．changedC．risenD．declined【小题9】A．oldB．maleC．youngD．female【小题10】A．insisted B．indicatedC．denied D．wondered【小题11】A．largeB．smallC．highD．low【小题12】A．sunkB．setC．producedD．occurred【小题13】A．reasonsB．causesC．waysD．results【小题14】A．surveyB．studyC．figureD．effort【小题15】A．stopB．reduceC．forbidD．limitC
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(答案→)C
解析：本文讲述了在过去几十年里年轻人抽烟的比率有所下降，并分析了具体的原因。
【小题1】C 动词辨析。A推理B认为C预料D希望；3千人里有23人被预料将死于谋杀。
【小题2】B 上下文串联。根据横线前的traffic说明这里是指交通事故。
【小题3】B 动词辨析。A破坏B导致C带领D生产了；由吸烟所导致的死亡人数超过所有其它的原因。
【小题4】C 上下文串联。根据横线后面的involuntary说明C正确。
【小题5】D 动词辨析。A有B共计C得到D达到；指这个数字达到了30%。
【小题6】A 上下文串联。根据第8空的smoking rates among youth说明这里讨论的青少年的抽烟。
【小题7】A 动词辨析。A提出B举起C要求D询问；有几个重要的因素要被提出来。
【小题8】D 上下文串联。根据第6空后的declined说明整个数据是在下降。
【小题9】B 上下文串联。根据that among female说明这里是拿男性和女性抽烟的数据进行对比的。
【小题10】B 动词辨析。A坚持B显示C否认D想知道；最近的研究显示…
【小题11】C 形容词辨析。A大B小C高D低；指高中辍学者的抽烟率太高了。说明这个现象很严重。
【小题12】D 动词辨析。A下沉B设置C生产D发生；尽管青少年抽烟比率下降过去几十年已经发生。
【小题13】A 用法辨析。横线后面的for the decline说明A正确，名词reason与介词for连用。
【小题14】D 名词辨析。A调查B研究C数据D努力；NCI开始采取措施努力降低吸烟的比率。
【小题15】B 调查辨析。A停止B降低C禁止D限制；NCI开始采取措施努力降低吸烟的比率。