Question

   E-cigarettes began as a way to stop people from smoking tobacco. But a new study among teens suggests a scary. effect: E-cigarettes are now appealing to non-smokers,as well. In a survey of over 2 ,000 California high school juniors and seniors,researchers from the University of Southern California discovered that over 40 percent of teen e-cigarette smokers have never smoked traditional cigarettes.

   The National Youth Tobacco Survey reports a nearly 9 percent increase in the number of high school students using e-cigarettes from 2013 to 2014,more than enough to stifle (掩盖) the 3. 5 percent decrease in teen cigarette use,as recorded by the Centers for Disease Control and Prevention. While 9 percent may not sound like a ton,the amount of middle and high school students using e-cigarettes has actually tripled(增至三倍) .

   How,despite decades of anti-smoking advocacy efforts,have e-cigarettes gained such massive popularity in such a short time? Scientists say that the “renormalization” of teen smoking may not be entirely self-inflicted(自己造成的) .A study found that 34 percent of adolescent e-smokers are exposed to electronic cigarettes via a member of their family or friend groups.

   Advertising also makes e-cigarettes look cool. E-cigarettes,which are not very expensive,are marketed as a safe alternative to traditional cigarettes,and teens are buying the message. In a recent study in North Carolina,high schoolers easily made a list of the dangers of smoking tobacco,but when asked to do the same with regard to e-cigarettes,the teens were unsure whether the devices could be considered safe. Some weren't even aware that e-cigarettes contain nicotine. But e-cigarettes do contain nicotine. It is highly addictive,which is why some consider e-cigarettes a gateway drug.

   If stressing the dangers of tobacco helped make cigarettes uncool,we can do the same to destroy e-cigarettes.

29. According to Paragraph 1 ,what is frightening is that .

   A. few tobacco smokers quit smoking

   B. non-smokers are attracted to e-cigarettes

   C. more and more people are smoking tobacco

   D. smokers are replacing tobacco with e-cigarettes 

30. From 2013 to 2014,student e-cigarette smokers in high school increased by about .

   A. 3. 5%   B. 9% 

   C. 27%   D. 40%

31. About one third of teen e-smokers use e-cigarettes because of .

   A. e-cigarettes’ low prices

   B. cool designs of e-cigarettes

   C. the influence of people around them.

   D. their dislike of traditional cigarettes

32. What can we infer from Paragraph 4 ?

   A. E-cigarettes are different from drugs.

   B. Most teens know the dangers of e-cigarettes.

   C. E-cigarettes are safer than traditional cigarettes.

   D. Teens are misled by e-cigarette advertisements.

Answer 1

29. B 30. B 31. C 32. D

(健康)

本文是说明文。文章主要介绍了电子香烟为何在青少年中盛行。

29. B.细节理解题。由第一段中的But a new study among teens suggests a scary effect: E-cigarettes are now appealing to non-smokers,as wel可知，可怕的是，不抽烟的人也被电子香 烟吸引了。

30. B.细节理解题。由第二段中的a nearly 9 percent increase in the number of high school students using e-cigarettes from 2013 to 2014 可 知。

31. C.细节理解题。由第三段末的Astudy found that 34 percent of adolescent e-smokers are exposed to electronic cigarettes; via a member of their famiy or friend groups可知，抽电宇香烟的青少年中约三分之一是因为受周围的家人、 朋友的影响。

32. D.推理判断题。由第四段开头的Advertising also makes e-cigarettes look cool. E-cigarettes ... are marketed as a safe alternative to traditional cigarettes,and teens are buying the message 及末 尾的 But e-cigarettes do contain nicotine ... a gateway drug可推断，电子香烟的广告使青少年 误以为电子香烟是安全的。